CN113022628B - Power steering frame based on novel motor suspension structure and overhead swing bolster - Google Patents
Power steering frame based on novel motor suspension structure and overhead swing bolster Download PDFInfo
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- CN113022628B CN113022628B CN202011057406.5A CN202011057406A CN113022628B CN 113022628 B CN113022628 B CN 113022628B CN 202011057406 A CN202011057406 A CN 202011057406A CN 113022628 B CN113022628 B CN 113022628B
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- 239000000725 suspension Substances 0.000 title claims abstract description 125
- 230000009467 reduction Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 claims description 49
- 230000035939 shock Effects 0.000 claims description 47
- 241001669679 Eleotris Species 0.000 claims description 31
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 230000008719 thickening Effects 0.000 claims description 17
- 230000002829 reductive effect Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000000670 limiting effect Effects 0.000 claims description 8
- 238000003491 array Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 27
- 238000004519 manufacturing process Methods 0.000 description 20
- 238000005096 rolling process Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000036544 posture Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/20—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/10—Bolster supports or mountings incorporating fluid springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/12—Bolster supports or mountings incorporating dampers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The power steering frame based on the new-type motor suspension structure and overhead swing bolster belongs to the field of railway vehicle power steering frame device, and includes frame, wheel pair device formed from wheels and axle, easy-to-withdraw shaft type gear box, side beam single-point suspension motor and integrated vibration-damping swing bolster and secondary suspension system. On the premise of ensuring the installation position and vibration reduction index of the primary suspension axle box device, the invention effectively reduces the transverse width dimension and the turning radius of the whole bogie, so that the curve passing capacity of the bogie is further improved, and the annular vibration reduction axle box is convenient to install, disassemble and maintain; after the four fastening bolts are respectively removed, the side beam single-point suspension motor can be directly and independently removed from the lower part of the vehicle body through the overhaul trench.
Description
Technical Field
The invention belongs to the field of power steering frame devices of railway vehicles, and particularly relates to a power steering frame based on a novel motor suspension structure and an overhead swing bolster.
Background
The railway train bogie is designed by comprehensively considering the structural strength of a framework serving as a bearing main body, the action effect of various auxiliary vibration reduction components such as an anti-meandering vibration damper, the installation mode of a braking mechanism and other comprehensive factors, and comprehensively designing a plurality of factors such as the suspension mode of a motor of the power bogie, the layout space of a motor and a gear box thereof, the structural forms and the layout space of primary suspension and secondary suspension devices according to the theoretical speed per hour, the bearing load, the minimum curve curvature, the road conditions such as wind, snow and flying stones and the like of the train according to the requirements of different vehicle types. Various design schemes developed around the core ideas are increasingly improved and complicated, so that iterative updating and continuous progress of the manufacturing level of the power bogie are finally promoted, framework schemes of different vehicle types are promoted to be new, and some new schemes even completely overtake old ideas, so that the core improvement has obvious differences and innovations.
As shown in fig. 1, for a welded side beam with a box structure formed by assembling and splicing a plurality of plates, a weldment side beam i is generally a wing-shaped structure with two wings upturned, and a weldment wheel axle seat i-2 is correspondingly welded and fixedly connected to the lower end face of a wing root position inclined plane i-1 of each wing-shaped structure. Each weld side beam spring cap barrel i-3 is welded to the tip end of one weld side beam i. Because the side beam upper cover plate and the side beam lower cover plate of the side beam i of the welding piece and the side wall plates i-4 of the two welding piece clamped between the side beam upper cover plate and the side beam lower cover plate of the side beam i of the welding piece and the side wall plates i-4 of the two welding piece are of special wing-shaped structures matched with the side wall plates i-4 of the side beam of the welding piece, the clamping and positioning operation of the whole assembly welding of the side beam i of the welding piece is relatively complex, a large number of positioning fixtures are needed in the manufacturing process to ensure that the side wall plates i-4 of the side beam of the welding piece are respectively and vertically welded and fixedly connected with the lower cover plate of the side wall plates of the welding piece according to the parallel postures, and the positioning of a plurality of side wall plate connecting rib plates and the spring cap barrel i-3 of the side wall plates of the welding piece can be realized only by the complex positioning fixture with additional design. For example, china patent publication No. CN110722319A discloses a welding positioning tool for side beams of a railway carriage framework, and the disclosed complex positioning tool structure is additionally designed for improving the assembly positioning precision of side beam spring cap cylinder i-3 and other parts, reducing calibration mapping work, reducing labor intensity and other problems. In the same way, the process of positioning and welding the welding part wheel axle seat i-2 at the lower end of the inclined plane of the welding part side beam wing root part can be smoothly implemented only by specially designing a pairing positioning tool for the side beam forward welding as disclosed in China patent publication No. CN108817797A, and the design and the manufacture of the positioning tool can necessarily bring about great increase of the production cost.
As shown in fig. 2 to 4, the secondary suspension device of the conventional bogie includes, but is not limited to, a secondary transverse damper k, two air springs m, an anti-roll torsion bar mechanism n, two secondary vertical dampers v and a secondary transverse stopper w for releasing various vertical vibrations and torsional pendulum, twisting and overturning stresses between the frame and the vehicle body, and a traction mechanism composed of three of two secondary traction links p and traction sleeper q for transmitting the driving force of the bogie to the vehicle body underframe supported thereby. However, the upper ends of the two-system transverse shock absorber k, the two air springs m, the two-system vertical shock absorbers v and the anti-side rolling torsion bar n on the existing bogie are generally and directly connected below the underframe of the vehicle body, when the bogie is in butt joint with the vehicle body or overhauled and maintained by the structure, the overhead travelling crane hoisting or the landing station of the overhead travelling crane is required to be occupied for a long time, the speed increase of the production beat is severely restricted, the improvement of productivity and efficiency is limited, and a larger vertical span value between the vehicle body and the framework also provides higher requirements on the vertical heights and the mechanical strength of the two-system transverse shock absorber k, the two air springs m, the two-system vertical shock absorbers v and the anti-side rolling torsion bar n, and the manufacturing and detecting cost of the components is additionally increased. In addition, the structural form and the layout position of the anti-side rolling torsion bar n are comprehensively designed according to the span, the height, the vehicle body load and the complex stress state of the side rolling torsion pendulum motion of the framework, the design parameters of the anti-side rolling torsion bar n are often obtained in a static strength test and a dynamic test of the framework, and a great deal of test expenditure and design development time are added for the design parameters, so that the design cost is further improved, especially in part of traditional frameworks, the anti-snake-shaped vibration absorbers are additionally arranged on two side beams respectively, and the side rolling and snake-shaped motion of the bogie of the train are further assisted to be reduced.
On the other hand, as shown in fig. 1, a conventional power bogie frame g is generally provided with a motor hanger t and a gear box hanger u, and is respectively used for correspondingly and fixedly connecting a traction motor r and a gear box s, and the reverse torques of the two motors are offset by adopting a double-motor mounting mode of rotationally symmetrically arranging the front traction motor r and the rear traction motor r with the geometric center of the frame g, so that the overall mechanical stability and the vibration balance characteristic of the power bogie are optimized. However, the mounting mode which depends on the framework g and is completely and rigidly connected with the motor hanging seat t and the gear box hanging seat u is adopted, the layout positions and the welding manufacturing process of the motor hanging seat t and the gear box hanging seat u not only provide higher requirements on the structural strength and the symmetrical precision of the beam body, but also increase the structural size and the turning radius of the whole bogie, which is not beneficial to the improvement of the minimum curve passing capability of the bogie, and the lifting lug of the shell of the traction motor r is of a non-removable rigid structure, so that the lifting lug and the framework and the gear box structure interfere with each other to block the traction motor r, the traction motor r cannot be directly and independently removed from the lower part of a vehicle body through a maintenance trench, but a vehicle frame machine is needed to separate a carriage above the framework from the framework, so that the traction motor r can be detached from the upper part of the framework, and the difficulty of maintenance and replacement of the motor is greatly increased. Meanwhile, the rigidly connected motor hanging seat t and the gear box hanging seat u also lead the traction motor r and the gear box s to lack sufficient vibration reduction protection systems, so that accessory structures such as an anti-snake-shaped vibration damper, an anti-side rolling torsion bar n and the like are installed as necessary supplements.
In addition, different train design speed requirements or different side beam structural forms can also greatly influence the layout space and structural forms of the secondary suspension device, the motor and the gearbox, so that the layout scheme of the traditional secondary suspension device cannot meet the requirements of the installation position and the vibration reduction index, and the traditional reference scheme is required to be overturned, so that the design improvement of a brand new concept is made.
As shown in fig. 5 to 7, the existing large gear s-2 mounted inside the snap-fit spliced gear box housing s-1 is directly press-fitted with the bearing outer ring s-3-2 on the large gear bearing s-3 to form an interference fit which is coaxially and fixedly connected, the gear box mounting shaft section d-1 on the axle d is directly press-fitted with the large gear bearing inner ring s-3-1 on the large gear bearing s-3 to form an interference fit which is coaxially and fixedly connected, the coaxial fixedly connected form of the interference fit causes the gear box mounting shaft section d-1, the gear box bearing s-3 and the large gear s-2 to become an integral body which cannot be separated, and because the structural strength of the snap-fit spliced gear box housing s-1 is low, the existing large gear bearing inner ring s-3 cannot be directly used as an acting point of a release plate on an axle release pressure machine, and even if the existing large gear bearing inner ring is too narrow, the release plate on the release pressure machine is modified into a multi-jaw chuck form, and the gear box is inserted into the gear box inside from an axle through hole on the axial side wall of the gear box, the gear box can still cause a sufficient radial acting point to reliably block the large gear bearing s-3 and the large gear s-3 must be directly released from the integral state, and the integral release is carried out to the integral state of the large gear s-3 must be directly or the large gear s-3 and the large gear s-3 must be released from the integral state and the integral bearing is released from the integral bearing s-2 and the integral body has the release effect of the release from the integral state, and then transferred to the wheel axle withdrawal pressure machine to finish withdrawal and replacement operations. The method is complex in process, time-consuming and labor-consuming, and can not be used for independently removing and replacing the axle d on the premise that the large gear s-2 is not removed from the buckling spliced gearbox housing s-1, and also can not be used for independently removing the axle d and directly carrying out operations such as overhauling, lubricating and maintaining on the large gear s-2 in the gearbox housing s-1 from a hole left after the axle d is removed on the premise that the buckling state of the buckling spliced gearbox housing s-1 is maintained.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
1) In the existing welding type side beam with the bird wing-shaped curve structure, a large number of positioning fixtures are needed to be used in the manufacturing process, so that the side wall plates of the two welding part side beams can be vertically welded and fixedly connected with the lower cover plate of the welding part side beam respectively according to the parallel postures.
2) The positioning process of the plurality of side wall plate connecting rib plates of the welding side beam and the welding side beam spring cap barrel can be realized only by a complex positioning tool which is additionally designed; and the welding quality can be barely ensured by additionally adding correction and repair operations to correct various asymmetric structural size deviations such as stretching, twisting, tilting and the like with different dimensions and directions in the welding cooling process.
3) The upper ends of the two-system transverse shock absorbers, the two air springs, the two-system vertical shock absorbers and the anti-rolling torsion bar on the traditional bogie two-system suspension device are generally and directly connected below a vehicle underframe, and when the bogie is in butt joint with the vehicle or overhauled and maintained by the structure, the bogie needs to occupy the overhead travelling crane hoisting or the vehicle falling station of the overhead travelling crane machine for a long time, the speed of production beat is severely restricted, and the productivity and the efficiency are limited. In addition, a larger vertical span value between the carriage and the framework also puts higher demands on the vertical height and mechanical strength of each of the two-system transverse shock absorber, the two air springs, the two-system vertical shock absorbers and the anti-rolling torsion bar, and the manufacturing and detection costs of the components are additionally increased.
4) On the other hand, by means of the motor installation mode that the framework is completely and rigidly connected with the motor hanging seat and the gear box hanging seat, the layout positions and the welding manufacturing process of the motor hanging seat and the gear box hanging seat not only put forward higher requirements on the structural strength and the symmetrical precision of the beam body, but also occupy most of the space inside the conventional framework, and meanwhile, the overall structural size and the turning radius of the bogie are increased, so that the improvement of the minimum curve passing capacity of the bogie is not facilitated.
5) Because the lifting lug of the traction motor shell is of a non-removable rigid structure, when the lifting lug is interfered with the framework and the gear box, the traction motor can not be directly and independently removed from the lower part of the vehicle body through a maintenance trench, and a vehicle lifting machine is needed to separate a carriage above the framework from the framework, so that the traction motor can be disassembled from the upper part of the framework, and the difficulty of motor maintenance and replacement is greatly increased.
6) The large gear arranged in the buckling and splicing type gear box shell is pressed and assembled with the gear box mounting shaft section of the axle through the large gear bearing to form an interference fit to form a coaxial and fixedly connected mode, so that the gear box mounting shaft section, the gear box bearing and the large gear are formed into an integral body which cannot be separated, and due to the fact that the structural strength of the buckling and splicing type gear box shell is low, the large gear cannot be directly used as an acting point of a dismounting baffle on an axle dismounting pressure machine, moreover, the bearing inner ring of the existing large gear bearing is too narrow, so that even if the dismounting baffle on the axle dismounting pressure machine is modified into a multi-claw chuck mode, the dismounting baffle is inserted into the gear box from an axle through hole in the axial side wall of the gear box, the radial dismounting blocking acting force cannot be reliably implemented on the inner ring of the large gear bearing due to the lack of enough radial acting force, and therefore, when the axle dismounting cannot be directly implemented, the factors cause that the axle or the large gear is required to be conveniently and quickly dismounted on the premise that the large gear is not dismounted from the gear box shell, and the dismounting and the axle is required to be replaced on the premise that the condition that the large gear is not dismounted from the buckling and splicing type gear box shell is not to be dismounted, and the problem that the gear box is directly dismounted from the axle is maintained.
The technical scheme adopted by the invention for solving the technical problems is as follows:
The power steering frame based on the novel motor suspension structure and the overhead swing bolster comprises a framework, a wheel set device formed by wheels and axles, wherein the framework comprises two framework side beams and two framework cross beams, the framework side beams comprise a side beam middle section serving as two bird wing connecting parts and positioned at a lower position, and two bird wing-shaped side beam cantilever sections symmetrically fixedly connected to two ends of the side beam middle section, and the bird wing-shaped side beam cantilever sections are formed by connecting an upward-tilting inclined section and a horizontal extension section extending outwards horizontally;
The steering frame is characterized by further comprising an easy-to-withdraw shaft type gear box, a side beam single-point suspension motor and an integrated vibration reduction swing bolster and a secondary suspension system;
The frame side beams and the frame cross beams are of a cast integral structure, and the frame also comprises two frame overhead spring mounting seats, two frame traction pull rod seats, two frame transverse stop seats, two side beam self-carrying gear box hanging seats, two gear box vertical stop seats, four half-ring clamp type axle box hanging seats, two motor single-point hanging seats, two motor vertical limit stop seats, two frame vertical shock absorber seats, four antennas Liang Diao and two frame transverse shock absorber seats;
The two framework overhead spring mounting seats are symmetrically and fixedly connected to the upper end of the middle part of the side beam middle section, the two framework traction pull rod seats are rotationally and symmetrically fixedly connected to the outer side wall of the middle part of the side beam middle section, and the two framework transverse stop seats are rotationally and symmetrically fixedly connected to the upper end of the wing-shaped side beam cantilever section; the two gear box hanging seats and the gear box vertical stop are respectively and symmetrically fixedly connected on the inner side wall of the cantilever section of the bird wing-shaped side beam below the root part of the framework transverse stop seat in sequence from top to bottom; the two motor single-point suspension seats, the two motor vertical limit stops and the two framework vertical shock absorber seats are respectively and rotationally symmetrically fixedly connected to the inner side wall of the lower part of the inclined section of the wing-shaped side beam cantilever section, the two motor single-point suspension seats are rotationally symmetrically fixedly connected to the bottom of the lower end face of the inclined section of the wing-shaped side beam cantilever section, and the two motor vertical limit stops are rotationally symmetrically fixedly connected to the upper end of the junction of the inclined section of the wing-shaped side beam cantilever section and the horizontal extension section; four antennas Liang Diao are arranged on the outer side wall of the most distal end of each wing-shaped side beam cantilever section, four semi-ring clamp type axle box hanging seats are arranged at the bottom of each wing-shaped side beam cantilever Duan Yuan end, and a sensor mounting hole is formed in the upper end face of each semi-ring clamp type axle box hanging seat; the transverse shock absorber seat is fixedly connected to the middle section of the upper end face of a corresponding framework beam;
The easy-to-withdraw shaft type gear box is pressed on a gear box installation shaft section of the axle, and one side of the easy-to-withdraw shaft type gear box is connected to a gear box hanging seat through a gear box hanging rod;
One side of the side beam single-point suspension motor is fixedly connected to the motor single-point suspension seat, and the other side of the side beam single-point suspension motor is elastically connected with the easy-to-withdraw shaft type gearbox in a rubber node suspension mode;
The integrated vibration reduction type swing bolster and the secondary suspension system are positioned above the framework and are correspondingly connected with the framework.
The middle part of a gear box shell of the easy-to-withdraw shaft type gear box is provided with an axle mounting hole and a motor coupling mounting hole, four motor flexible suspension rubber node seat holes distributed according to isosceles trapezoids are fixedly connected on the same side of the gear box shell around the motor coupling mounting hole, the included angle beta between the centers of the two motor flexible suspension rubber node seat holes positioned below and the connecting line of the hole centers of the motor coupling mounting hole is 100-140 degrees, and the optimal value is 120 degrees; a vertical stop block of the gear box shell is fixedly connected to the outer side wall of the gear box shell at the intersection of the extension line of the central connecting lines of the axle mounting hole and the motor coupling mounting hole and the gear box shell; the outer side wall of the gear box shell below the vertical stop block of the gear box shell is fixedly connected with a vertical hanging rod seat of the shell, and rubber vibration reduction gaskets are arranged at two ends of the hanging rod of the gear box and are used for elastically connecting the vertical hanging rod seat of the shell with the hanging seat of the gear box.
The lower part of the rear end cover of the side beam single-point suspension motor shell is fixedly connected to a motor single-point suspension seat through a side beam end motor suspension rubber node and a motor suspension rubber node semi-ring clamp, the upper part of the rear end cover of the side beam single-point suspension motor shell is fixedly connected with a horizontal motor vertical cantilever stop lever, and the motor vertical cantilever stop lever is suspended above a motor vertical limiting stop, and the gap value range of the motor vertical cantilever stop lever and the motor vertical limiting stop lever is 10-50 mm; the motor shell at the end of the motor output shaft of the side beam single-point suspension motor is fixedly connected to the four motor flexible suspension rubber node seat holes in an elastic suspension mode through four motor flexible suspension rubber nodes respectively, and the motor output shaft of the side beam single-point suspension motor is rotationally connected to a reduction gear mechanism in the motor coupling mounting hole through a coupling.
The integrated vibration reduction type swing bolster and secondary suspension system comprises a swing bolster, two sleeper beams, two underlying secondary air springs, two traction pull rods, sleeper beams underlying transverse vibration absorbers, two vertical vibration absorbers and two side bearings; the swing bolster is of a box-type structure, an inner cavity is used as an air chamber of the two sleeper beams arranged below the two air springs, and the bottoms of the two ends of the swing bolster are provided with interfaces connected with air inlets and air outlets of the two sleeper beams arranged below the two air springs; two end parts of the swing bolster are rotationally and symmetrically fixedly connected with two downward-hanging swing bolster traction pull rod seats around the mass center of the swing bolster, the lower end surface of the middle part of the swing bolster is fixedly connected with a transverse shock absorber seat, the side wall of the middle part of the swing bolster is rotationally and symmetrically fixedly connected with two vertical shock absorber seats, one side of the side wall of the middle part of the swing bolster, which is close to the swing bolster traction pull rod seat, is rotationally and symmetrically fixedly connected with two swing bolster transverse stop seats, and the center of the swing bolster is provided with a center pin hole;
Two sleeper beams are arranged below the two sleeper beams, two air springs are correspondingly arranged on the two air spring mounting seats of the framework one by one and are positioned at the bottoms of the two ends of the swing bolster; one end of each traction pull rod is fixedly connected to the swing bolster traction pull rod seat through a rubber node, and the other end of each traction pull rod is fixedly connected to the two framework traction pull rod seats through a rubber node; one end of the sleeper beam lower transverse shock absorber is fixedly connected to the transverse shock absorber seat through a rubber node, and the other end of the sleeper beam lower transverse shock absorber is fixedly connected to a corresponding framework transverse shock absorber seat through a rubber node; one end of each of the two vertical vibration dampers is fixedly connected to the vertical vibration damper seat through a rubber node, and the other end of each of the two vertical vibration dampers is fixedly connected to the vertical vibration damper seat of the framework through a rubber node; the two side bearings are fixedly connected to the upper end face of the swing bolster and are positioned right above the two sleeper beams and the lower two-system air springs.
The outer diameter of the gear box installation shaft section of the axle is reduced to 80% of the original value, so that a small-diameter gear box installation shaft section is formed; the inside of the easy-to-withdraw shaft type gear box also comprises an easy-to-withdraw shaft type large gear bearing inner ring radial thickening sleeve and two large gear bearing end covers provided with screw hole arrays;
The inner diameter of the radial thickening sleeve of the inner ring of the easy-to-withdraw shaft type large gear bearing is the same as the outer diameter of the mounting shaft section of the small-diameter gear box, and the inner diameter and the outer diameter are coaxially and fixedly connected through press mounting; the inner ring of the large gear bearing on the large gear bearing is coaxially and fixedly connected to the outer diameter of the radial thickening sleeve of the inner ring of the large gear bearing of the easy-to-retract shaft type through press fitting; the end covers of the two large gear bearings are fixedly connected to the front end face and the rear end face of the radial thickening sleeve of the inner ring of the easy-to-retract shaft type large gear bearing respectively through bolt groups along the circumferential arrays, and the front end face and the rear end face of the large gear bearing are sealed in axle mounting holes; the flange plates of the gear box electric brush mechanism are coaxially and fixedly connected with corresponding screw holes on the outer diameter side wall of the axle mounting hole through a plurality of bolts.
The beneficial effects of the invention are as follows:
The main body structure of the power bogie frame based on the novel motor suspension structure and the upper swing bolster is formed by the frame side beams and the frame cross beams which are integrally formed through a casting process, so that a large number of positioning fixtures are avoided in the manufacturing process of the frame, the side wall plates of the two welding side beams can be vertically welded and fixedly connected with the lower cover plate of the welding side beam respectively according to the parallel postures, and the structural dimensional deviations of various dissymmetry such as stretching, twisting, side tilting and the like of different dimensions and directions in the welding cooling process can be corrected through additionally added correction and repair operation, so that the welding quality is ensured.
The gearbox hanging seat and the gearbox vertical stop block are sequentially and fixedly connected to the inner side wall of the cantilever section of the wing-shaped side beam along the same plumb line, the easy-to-withdraw shaft type gearbox is coaxially arranged on the gearbox installation shaft section of the axle, the shell vertical hanging rod seat at the furthest end of the shell of the easy-to-withdraw shaft type gearbox is hung and connected to the gearbox hanging seat only through a gearbox hanging rod with rubber vibration reduction gaskets arranged at the upper end and the lower end, so that the maximum rotation moment is used for exerting anti-rotation resistance around the axle on the easy-to-withdraw shaft type gearbox, the vertical stop block of the gearbox shell positioned in the middle of the far end of the easy-to-withdraw shaft type gearbox is positioned above the vertical hanging rod seat of the shell, the rotation radius of the vertical stop block of the gearbox relative to the axle installation hole is slightly smaller than the rotation radius of the vertical hanging rod seat of the shell, a movable gap of about 100mm is kept between the vertical stop block of the gearbox and the vertical stop block of the gearbox shell, and the maximum rotation displacement of the vertical stop block of the gearbox shell is limited. On the other hand, similar to the suspension mode of the easy-to-withdraw shaft type gearbox, the motor single-point suspension seat, the motor vertical limit stop and the framework vertical shock absorber seat are rotationally symmetrically and fixedly connected to the wing-shaped side beam cantilever section, the lower part of the side beam single-point suspension type motor shell rear end cover is fixedly connected to the motor single-point suspension seat through a side beam end motor suspension rubber node and a motor suspension rubber node semi-ring clamp, and the motor vertical limit stop rod is suspended above the motor vertical limit stop; meanwhile, a motor shell positioned at the end of the motor output shaft on the side beam single-point suspension motor is fixedly connected to four motor flexible suspension rubber node seat holes in an elastic suspension mode through four motor flexible suspension rubber nodes respectively. The suspension mode of the easy-to-withdraw shaft type gearbox and the side beam single-point suspension motor ensures that the weight and vibration load of the gearbox and the side beam single-point suspension motor are completely borne by the side beam and the axle of the framework. According to the design scheme, the space occupation degree of the rigid large-size hanging seat structure on the inner side of the side beam of the framework is reduced, enough operation space is reserved for disassembly and assembly of the gear box and the motor structure, the assembly and disassembly scheme of the motor is greatly optimized, four motor flexible hanging rubber node seat holes distributed according to isosceles trapezoids are fixedly connected on the same side of the gear box shell around the motor coupling mounting hole of the gear box, the included angle beta between the centers of the two motor flexible hanging rubber node seat holes positioned below and the connecting line of the hole centers of the motor coupling mounting hole is 100-140 degrees, and the traction pull rod seat of the framework is fixedly connected to the outer side wall of the middle part of the side beam.
The integrated vibration reduction type swing bolster and the secondary suspension system are positioned above a transverse and longitudinal integrated flexible interconnection framework and are correspondingly connected with the transverse and longitudinal integrated flexible interconnection framework, the swing bolster is of a box-type structure, an inner cavity is used as an air chamber of two sleeper beam lower-arranged secondary air springs, and the bottoms of two ends of the swing bolster are provided with interfaces connected with air inlet and outlet openings of the two sleeper beam lower-arranged secondary air springs; two end parts of the swing bolster are rotationally and symmetrically fixedly connected with two downward-hanging swing bolster traction pull rod seats around the mass center of the swing bolster, the lower end surface of the middle part of the swing bolster is fixedly connected with a transverse shock absorber seat, the side wall of the middle part of the swing bolster is rotationally and symmetrically fixedly connected with two vertical shock absorber seats, one side of the side wall of the middle part of the swing bolster, which is close to the swing bolster traction pull rod seat, is rotationally and symmetrically fixedly connected with two swing bolster transverse stop seats, and the center of the swing bolster is provided with a center pin hole; two sleeper beams are arranged below the two sleeper beams, two air springs are correspondingly arranged on the two air spring mounting seats of the framework one by one and are positioned at the bottoms of the two ends of the swing bolster; one end of each traction pull rod is fixedly connected to the swing bolster traction pull rod seat through a rubber node, and the other end of each traction pull rod is fixedly connected to the two framework traction pull rod seats through a rubber node; one end of the sleeper beam lower transverse shock absorber is fixedly connected to the transverse shock absorber seat through a rubber node, and the other end of the sleeper beam lower transverse shock absorber is fixedly connected to a corresponding framework transverse shock absorber seat through a rubber node; one end of each of the two vertical vibration dampers is fixedly connected to the vertical vibration damper seat through a rubber node, and the other end of each of the two vertical vibration dampers is fixedly connected to the vertical vibration damper seat of the framework through a rubber node; the two side bearings are fixedly connected to the upper end face of the swing bolster and are positioned right above the two sleeper beams and the lower two-system air springs. The integrated vibration reduction type swing bolster and the secondary suspension system directly integrate various vibration reduction buffer components with the integrated vibration reduction type swing bolster and the secondary suspension system, so that the connection procedures of the components such as the traditional secondary transverse vibration dampers, the two air springs, the two secondary vertical vibration dampers, the anti-rolling torsion bar and the like with a car body are greatly reduced, the rapid car drop of a carriage and a framework can be realized, the occupied time of a crown block and a car lifting machine is shortened, the turnover efficiency of a production line is improved, and the integrated secondary sleeper beam system is convenient for independent replacement and overhaul. The two bolster underslung type two-system air springs, the bolster underslung type transverse shock absorbers and the two vertical shock absorbers are directly connected to the lower part of the bolster on the framework of the invention instead of being directly connected to the lower part of a vehicle body from the framework like a traditional bogie two-system suspension device, so that the respective length requirements of the two-system shock absorption buffer components are greatly reduced, the manufacturing cost is reduced, and the strength is improved. In addition, when the integrated vibration reduction type swing bolster and the secondary suspension system are simultaneously combined with the clamping axle type wheel set built-in axle box for common use, the integrated vibration reduction type swing bolster and the secondary suspension system form a novel comprehensive vibration reduction structure, vertical and longitudinal torques generated by side rolling motion of a vehicle body can be fully released, all vibration such as transverse, longitudinal, vertical, meandering torsion pendulum, side rolling and the like generated by a motor and a gear box is effectively eliminated, and further, an ideal side rolling balance resisting effect is achieved, so that the influence degree of a bogie on the vibration of the vehicle body is reduced to the minimum, the balance stability and the comfort of the vehicle body are enhanced, the fatigue loss of the whole structure is effectively reduced, and the whole service life of the bogie and the vehicle body is greatly prolonged.
The external diameter of the gear box installation shaft section on the original axle is reduced to 80% of the original value, so that a small-diameter gear box installation shaft section is formed; the newly added radial thickening sleeve of the inner ring of the easy-to-retract shaft type large gear bearing is coaxially nested on the outer diameter of the mounting shaft section of the small-diameter gear box in an interference press fit mode, and the inner ring of the large gear bearing on the large gear bearing is coaxially fixedly connected on the outer diameter of the radial thickening sleeve of the inner ring of the easy-to-retract shaft type large gear bearing through press fit; according to the method, the originally too narrow inner ring of the large gear bearing in the radial direction is changed and thickened, so that after the dismounting baffle plate on the wheel shaft dismounting press is remodeled into a multi-jaw chuck type, the jaws of the multi-jaw chuck can be inserted into the gear box from the axle mounting hole on the axial side wall of the gear box, and the anti-play stopping acting force is uniformly and reliably applied to the axial outer end face of the radially thickened sleeve of the inner ring of the easy-dismounting shaft type large gear bearing, which is coaxially and fixedly connected with the inner ring of the large gear bearing, so that the operation processes of independently removing the axle and directly overhauling, lubricating and maintaining the large gear in the gear box shell from the hole left after the axle is dismounted are possible on the premise of not dismounting the large gear from the buckled spliced gear box shell.
In the process manufacturing index of the power steering frame based on the novel motor suspension structure and the upper swing bolster, the included angle of the included angle beta between the centers of the two motor flexible suspension rubber node seat holes positioned below and the connecting line of the hole centers of the motor coupling mounting holes is definitely set to be 100-140 degrees, the optimal value is 120 degrees, the core data ranges are all optimal experience parameters obtained through a large number of test summaries, the overall vibration characteristics of the steering frame can be optimized to the greatest extent, and the power steering frame is crystal and proof of research and development investment.
In addition, the novel motor suspension structure and overhead swing bolster-based power steering frame is used as a novel steering frame design form, the novel motor suspension structure and overhead swing bolster-based power steering frame all realize modularization of manufacturing schemes of an easy-to-withdraw shaft type gear box, a side beam single-point suspension motor, an integrated vibration reduction swing bolster and a secondary suspension system, different module units can independently implement standardized production, and the novel motor suspension structure and overhead swing bolster-based power steering frame is beneficial to realizing assembly line manufacturing, so that the production efficiency is greatly improved, the production cost is reduced, and the economic value is created.
Drawings
FIG. 1 is a schematic perspective view of a prior art welded frame truck;
FIG. 2 is a schematic perspective view of a prior art secondary suspension and traction mechanism;
FIG. 3 is a schematic diagram of the explosive structure of FIG. 2;
FIG. 4 is a schematic perspective view of a prior art cast form frame, secondary suspension and traction mechanism;
FIG. 5 is a schematic illustration of the assembly relationship of a prior art gearbox and axle;
FIG. 6 is a schematic illustration of the assembly relationship of the large gear and axle of FIG. 5;
FIG. 7 is an enlarged partial schematic view of FIG. 6;
FIG. 8 is a schematic perspective view of a power steering frame based on a novel motor suspension structure and an overhead bolster of the present invention;
FIG. 9 is a schematic diagram of the exploded construction of the power steering frame of the present invention based on a new motor suspension and overhead bolster;
FIG. 10 is a schematic diagram of an integrated vibration reduction bolster and secondary suspension system of the present invention;
FIG. 11 is a schematic view of the explosive structure of FIG. 10;
FIG. 12 is a schematic view of the structure of the frame of the present invention;
FIG. 13 is a schematic view of the structure of the frame and integrated vibration dampening bolster and secondary suspension system of the present invention;
FIG. 14 is a schematic view of the structure of the easy-to-retract shaft type gearbox of the present invention;
FIG. 15 is a schematic view of the structure of the easy-to-retract shaft type gearbox, side beam single point suspension motor and gearbox boom of the present invention;
FIG. 16 is a schematic view of the structure of the easy-to-retract shaft type gearbox and gearbox boom of the present invention;
FIG. 17 is a schematic illustration of the construction of an axle, easy-to-retract shaft type large gear bearing inner race radial thickening sleeve and large gear bearing end cap of the present invention;
FIG. 18 is a schematic axial cross-sectional view of an axle shaft, a radially thickened sleeve of an inner race of a readily retractable axle type large gear bearing and a large gear bearing end cap of the present invention assembled;
Fig. 19 is a schematic view of the structure of the present invention for withdrawing an axle from a bull gear using a penetration type multi-jaw chuck.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 8 to 19, the power steering frame based on the novel motor suspension structure and the overhead swing bolster comprises a framework, a wheel set device formed by wheels and axles, wherein the framework comprises two framework side beams 1-1 and two framework cross beams 1-2, the framework side beams 1-1 comprise side beam middle sections 1-1-1 which are used as two wing connecting parts and are positioned at lower positions, and two wing-shaped side beam cantilever sections 1-1-2 which are symmetrically and fixedly connected to two ends of the side beam middle sections 1-1-1, and the wing-shaped side beam cantilever sections 1-1-2 are formed by connecting an upward-tilting inclined section and a horizontal extension section which horizontally and outwards extends;
The steering frame is characterized by further comprising an easy-to-withdraw shaft type gear box, a side beam single-point suspension motor and an integrated vibration reduction swing bolster and a secondary suspension system;
The frame side beam 1-1 and the frame cross beam 1-2 are of a cast integrated structure, and the frame also comprises two frame hollow spring mounting seats 1-3, two frame traction pull rod seats 1-4, two frame transverse stop seats 1-5, two side beam self-carrying gearbox hanging seats 1-6, two gearbox vertical stops 1-7, four half-ring clamp type axle box hanging seats 1-8, two motor single-point hanging seats 1-9, two motor vertical limit stops 1-10, two frame vertical shock absorber seats 1-11, four antenna beam hanging seats 1-12 and two frame transverse shock absorber seats 1-13;
The two framework hollow spring mounting seats 1-3 are symmetrically and fixedly connected to the upper end of the middle part of the side beam middle section 1-1, the two framework traction pull rod seats 1-4 are rotationally and symmetrically and fixedly connected to the outer side wall of the middle part of the side beam middle section 1-1, and the two framework transverse stop seats 1-5 are rotationally and symmetrically and fixedly connected to the upper end of the wing-shaped side beam cantilever section 1-1-2; the two gearbox hanging seats 1-6 and the gearbox vertical stop 1-7 are respectively and symmetrically fixedly connected on the inner side wall of the wing-shaped side beam cantilever section 1-1-2 below the transverse stop seat 1-5 of the framework in sequence from top to bottom in a rotating manner; the two single-point motor suspension seats 1-9, the two vertical motor limiting stops 1-10 and the two vertical frame shock absorber seats 1-11 are respectively and symmetrically fixedly connected to the inner side wall of the lower part of the inclined section of the wing-shaped side beam cantilever section 1-1-2 in a rotating and symmetrical manner, the two single-point motor suspension seats 1-9 are fixedly connected to the bottom of the lower end face of the inclined section of the wing-shaped side beam cantilever section 1-1-2 in a rotating and symmetrical manner, and the two vertical motor limiting stops 1-10 are fixedly connected to the upper end of the junction of the inclined section of the wing-shaped side beam cantilever section 1-1-2 and the horizontal extension section in a rotating and symmetrical manner; the four antenna beam hanging seats 1-12 are arranged on the outer side wall of the most distal end of each wing-shaped side beam cantilever section 1-1-2, the four half-ring clamp type axle box hanging seats 1-8 are arranged at the bottom of the distal end of each wing-shaped side beam cantilever section 1-1-2, and the upper end face of each half-ring clamp type axle box hanging seat 1-8 is provided with a sensor mounting hole 1-8-1; the transverse shock absorber seat 1-13 is fixedly connected to the middle section of the upper end face of a corresponding framework beam 1-2;
the easy-to-withdraw shaft type gear box is pressed on a gear box installation shaft section 1-1 of the axle, and one side of the easy-to-withdraw shaft type gear box is connected to a gear box hanging seat 1-6 through a gear box hanging rod;
One side of the side beam single-point suspension motor is fixedly connected to the motor single-point suspension seats 1-9, and the other side of the side beam single-point suspension motor is elastically connected with the easy-to-withdraw shaft type gear box in a rubber node suspension mode;
The integrated vibration reduction type swing bolster and the secondary suspension system are positioned above the framework and are correspondingly connected with the framework.
The middle part of a gear box shell 1-1 of the easy-to-withdraw shaft type gear box is provided with an axle mounting hole 1-1-1 and a motor coupling mounting hole 1-1-2, four motor flexible suspension rubber node seat holes 1-2 distributed according to isosceles trapezoids are fixedly connected to the same side of the gear box shell 1-1 on the periphery of the motor coupling mounting hole 1-1-2, the included angle beta between the centers of the two motor flexible suspension rubber node seat holes 1-2 positioned below and the connecting line of the hole centers of the motor coupling mounting hole 1-1-2 is 100-140 degrees, and the optimal value is 120 degrees; the outer side wall of the gear box shell 1-1 at the intersection of the extension line of the central connecting line of the axle mounting hole 1-1-1 and the motor coupling mounting hole 1-1-2 and the gear box shell 1-1 is fixedly connected with a vertical stop block 1-4 of the gear box shell; the outer side wall of the gear box shell 1-1 below the gear box shell vertical stop block 1-4 is fixedly connected with a shell vertical suspender seat 1-3, and two ends of the gear box suspender are respectively provided with a rubber vibration damping gasket which is used for elastically connecting the shell vertical suspender seat 1-3 with the gear box suspender seat 1-6.
The lower part of the rear end cover of the side beam single-point suspension motor shell is fixedly connected to a motor single-point suspension seat 1-9 through a side beam end motor suspension rubber node 1-1 and a motor suspension rubber node semi-ring clamp 1-2, the upper part of the rear end cover of the side beam single-point suspension motor shell is fixedly connected with a horizontal motor vertical cantilever stop lever 1-4, the motor vertical cantilever stop lever 1-4 is suspended above a motor vertical limit stop 1-10, and the gap value range of the motor vertical cantilever stop lever 1-4 and the motor vertical limit stop 1-10 is 10-50 mm; the motor shell positioned at the end of the motor output shaft on the side beam single-point suspension motor is fixedly connected to the four motor flexible suspension rubber node seat holes 1-2 in an elastic suspension mode through four motor flexible suspension rubber nodes 1-5, and the motor output shaft of the side beam single-point suspension motor is rotationally connected to a reduction gear mechanism in the motor coupler mounting hole 1-1-2 through a coupler 1-3.
The integrated vibration reduction type swing bolster and secondary suspension system comprises a swing bolster 1-1, two sleeper beam lower-arranged secondary air springs 1-2, two traction pull rods 1-3, sleeper beam lower-arranged transverse vibration dampers 1-4, two vertical vibration dampers 1-5 and two side bearings 1-6; the swing bolster 1-1 is of a box-type structure, an inner cavity is used as an air chamber of the two sleeper beams underlying type secondary air springs 1-2, and the bottoms of the two ends of the swing bolster 1-1 are provided with interfaces connected with air inlets and air outlets of the two sleeper beams underlying type secondary air springs 1-2; two end parts of the swing bolster 1-1 are rotationally and symmetrically fixedly connected with two downward-hanging swing bolster traction pull rod seats 1-1 around the mass center of the swing bolster, the lower end surface of the middle part of the swing bolster 1-1 is fixedly connected with a transverse shock absorber seat 1-1-2, the side wall of the middle part of the swing bolster 1-1 is rotationally and symmetrically fixedly connected with two vertical shock absorber seats 1-1-3, one side, close to the swing bolster traction pull rod seat 1-1, of the side wall of the middle part of the swing bolster 1-1 is rotationally and symmetrically fixedly connected with two swing bolster transverse stop seats 1-1-4, and the center of the swing bolster 1-1 is provided with a center pin hole 1-1-5;
Two sleeper beams are arranged below the two air springs 1-2, are correspondingly arranged on the two air spring installation seats 1-3, and are positioned at the bottoms of the two ends of the swing bolster 1-1; one end of the two traction pull rods 1-3 is fixedly connected to the swing bolster traction pull rod seat 1-1 through a rubber node, and the other end is fixedly connected to the two framework traction pull rod seats 1-4 through a rubber node; one end of the sleeper beam lower transverse shock absorber 1-4 is fixedly connected to the transverse shock absorber seat 1-1-2 through a rubber node, and the other end is fixedly connected to a corresponding framework transverse shock absorber seat 1-13 through a rubber node; one end of each of the two vertical vibration dampers 1-5 is fixedly connected to the vertical vibration damper seat 1-1-3 through a rubber node, and the other end is fixedly connected to the vertical vibration damper seat 1-11 of the framework through a rubber node; the two side bearings 1-6 are fixedly connected to the upper end face of the swing bolster 1-1 and are positioned right above the two sleeper beams and the two secondary air springs 1-2.
The outer diameter of the gear box installation shaft section 1-1 of the axle is reduced to 80% of the original value, so that a small-diameter gear box installation shaft section 1-3 is formed; the inside of the easy-to-withdraw shaft type gear box also comprises an easy-to-withdraw shaft type large gear bearing inner ring radial thickening sleeve 1-7 and two large gear bearing end covers 1-6 provided with screw hole arrays;
The inner diameter of the radial thickening sleeve 1-7 of the inner ring of the easy-to-withdraw shaft type large gear bearing is the same as the outer diameter of the small diameter gear box mounting shaft section 1-3, and the inner diameter and the outer diameter are coaxially and fixedly connected through press fitting; the inner ring 1-3-1 of the large gear bearing 1-3 is coaxially and fixedly connected to the outer diameter of the radial thickening sleeve 1-7 of the inner ring of the easy-to-retract shaft type large gear bearing through press fitting; the radial outer circumferential end face of the radial thickening sleeve 1-7 of the inner ring of the easy-to-withdraw shaft type large gear bearing is provided with a screw hole array which is radially arranged along the radial outer circumferential end face, the two large gear bearing end covers 1-6 are respectively fixedly connected to the front end face and the rear end face of the radial thickening sleeve 1-7 of the inner ring of the easy-to-withdraw shaft type large gear bearing through bolt groups along the circumferential array, and the front end face and the rear end face of the large gear bearing 1-3 are sealed in the axle mounting hole 1-1-1; the flange plates of the gear box brush mechanisms 1-8 are coaxially and fixedly connected to corresponding screw holes on the outer diameter side wall of the axle mounting hole 1-1 through a plurality of bolts.
When the novel motor suspension structure and overhead swing bolster based power steering frame is specifically applied, the included angle beta between the centers of two motor flexible suspension rubber node seat holes 1-2 positioned below and the connecting line of the hole centers of the motor coupling mounting holes 1-1-2 is set to be 120 degrees.
Claims (6)
1. The power steering frame based on the novel motor suspension structure and the overhead swing bolster comprises a framework (A) and a wheel set device formed by wheels (c) and axles (d), wherein the framework (A) comprises two framework side beams (A-1) and two framework cross beams (A-2), the framework side beams (A-1) comprise side beam middle sections (A-1-1) serving as two wing connecting parts and positioned at lower positions and two wing-shaped side beam cantilever sections (A-1-2) symmetrically fixedly connected to two ends of the side beam middle sections (A-1-1), and the wing-shaped side beam cantilever sections (A-1-2) are formed by connecting an upward-tilted section and a horizontal extension section extending outwards horizontally;
the steering frame is characterized by further comprising an easy-to-withdraw shaft type gear box (D), a side beam single-point suspension motor (E) and an integrated vibration reduction swing bolster and a secondary suspension system (F);
the framework side beam (A-1) and the framework cross beam (A-2) are of a casting integrated structure, the framework (A) further comprises two framework overhead spring mounting seats (A-3), two framework traction pull rod seats (A-4), two framework transverse stop seats (A-5), two side beam self-carrying gearbox hanging seats (A-6), two gearbox vertical stop seats (A-7), four half-ring clamp type axle box hanging seats (A-8), two motor single-point hanging seats (A-9), two motor vertical limit stop seats (A-10), two framework vertical shock absorber seats (A-11), four antennas Liang Diao (A-12) and two framework transverse shock absorber seats (A-13);
the two framework empty spring mounting seats (A-3) are symmetrically and fixedly connected to the upper end of the middle part of the side beam middle section (A-1-1), the two framework traction pull rod seats (A-4) are rotationally and symmetrically fixedly connected to the outer side wall of the middle part of the side beam middle section (A-1-1), and the two framework transverse stop seats (A-5) are rotationally and symmetrically fixedly connected to the upper end of the wing-shaped side beam cantilever section (A-1-2); the two gearbox hanging seats (A-6) and the gearbox vertical stop (A-7) are sequentially and respectively and rotationally symmetrically fixedly connected to the inner side wall of the wing-shaped side beam cantilever section (A-1-2) below the root part of the framework transverse stop seat (A-5) according to the sequence from top to bottom; the single-point suspension seats (A-9) of the two motors, the vertical limiting stops (A-10) of the two motors and the vertical shock absorber seats (A-11) of the two frameworks are respectively and symmetrically and fixedly connected to the inner side wall of the lower part of the inclined section of the wing-shaped side beam cantilever section (A-1-2), the single-point suspension seats (A-9) of the two motors are symmetrically and fixedly connected to the bottom of the lower end face of the inclined section of the wing-shaped side beam cantilever section (A-1-2), and the vertical limiting stops (A-10) of the two motors are symmetrically and fixedly connected to the upper end of the junction of the inclined section and the horizontal extension section of the wing-shaped side beam cantilever section (A-1-2); four antennas Liang Diao (A-12) are arranged on the outer side wall of the farthest end of each wing-shaped side beam cantilever section (A-1-2), four semi-ring clamp type axle box hanging seats (A-8) are arranged at the bottom of the far end of each wing-shaped side beam cantilever section (A-1-2), and a sensor mounting hole (A-8-1) is formed in the upper end face of each semi-ring clamp type axle box hanging seat (A-8); the framework transverse shock absorber seat (A-13) is fixedly connected to the middle section of the upper end surface of a corresponding framework cross beam (A-2);
The easy-to-withdraw shaft type gear box (D) is pressed on a gear box installation shaft section (D-1) of the axle (D), and one side of the easy-to-withdraw shaft type gear box (D) is connected to a gear box hanging seat (A-6) through a gear box hanging rod (H);
One side of the side beam single-point suspension motor (E) is fixedly connected to a motor single-point suspension seat (A-9), and the other side of the side beam single-point suspension motor (E) is elastically connected with the easy-to-withdraw shaft type gear box (D) in a rubber node suspension mode;
The integrated vibration reduction type swing bolster and the secondary suspension system (F) are positioned above the framework (A) and are correspondingly connected with the framework (A).
2. The power steering frame based on the novel motor suspension structure and the upper swing bolster as claimed in claim 1, wherein an axle mounting hole (D-1-1) and a motor coupling mounting hole (D-1-2) are arranged in the middle of a gear box shell (D-1) of the easy-to-withdraw shaft type gear box (D), four motor flexible suspension rubber node seat holes (D-2) distributed according to isosceles trapezoids are fixedly connected on the same side of the gear box shell (D-1) around the motor coupling mounting hole (D-1-2), and the included angle beta between the centers of the two motor flexible suspension rubber node seat holes (D-2) positioned below and the hole center connection line of the motor coupling mounting hole (D-1-2) is 100-140 degrees; a vertical stop block (D-4) of the gear box shell is fixedly connected to the outer side wall of the gear box shell (D-1) at the intersection of the extension line of the central connecting line of the axle mounting hole (D-1-1) and the motor coupling mounting hole (D-1-2) and the gear box shell (D-1); the outer side wall of the gear box shell (D-1) below the gear box shell vertical stop block (D-4) is fixedly connected with a shell vertical hanging rod seat (D-3), and rubber vibration reduction gaskets are arranged at two ends of the gear box hanging rod (H) and are used for elastically connecting the shell vertical hanging rod seat (D-3) with the gear box hanging seat (A-6).
3. The power steering frame based on a new motor suspension structure and an overhead bolster as claimed in claim 2, wherein the optimum value of the included angle β is 120 degrees.
4. The power steering frame based on the novel motor suspension structure and the upper swing bolster as claimed in claim 2, wherein the lower part of the rear end cover of the shell of the side beam single-point suspension motor (E) is fixedly connected to a single-point suspension seat (A-9) of the motor through a side beam end motor suspension rubber node (E-1) and a motor suspension rubber node semi-ring clamp (E-2), the upper part of the rear end cover of the shell of the side beam single-point suspension motor (E) is fixedly connected with a horizontal motor vertical cantilever stop lever (E-4), and the motor vertical cantilever stop lever (E-4) is suspended above a motor vertical limiting stop (A-10), and the gap value range of the motor vertical cantilever stop lever and the motor vertical limiting stop lever is 10-50 mm; the motor shell positioned at the end of the motor output shaft on the side beam single-point suspension motor (E) is fixedly connected to four motor flexible suspension rubber node seat holes (D-2) in an elastic suspension mode through four motor flexible suspension rubber nodes (D-5), and the motor output shaft of the side beam single-point suspension motor (E) is rotationally connected to a reduction gear mechanism inside a motor coupler mounting hole (D-1-2) through a coupler (E-3).
5. The power steering frame based on the novel motor suspension structure and the overhead swing bolster according to claim 1, wherein the integrated vibration reduction swing bolster and secondary suspension system (F) comprises a swing bolster (F-1), two bolster underslung secondary air springs (F-2), two traction tie rods (F-3), a bolster underslung transverse vibration damper (F-4), two vertical vibration dampers (F-5) and two side bearings (F-6); the swing bolster (F-1) is of a box structure, an inner cavity is used as an air chamber of the two sleeper beams arranged below the two air springs (F-2), and the bottoms of the two ends of the swing bolster (F-1) are provided with interfaces connected with air inlets and air outlets of the two sleeper beams arranged below the two air springs (F-2); two end parts of the swing bolster (F-1) are rotationally and symmetrically fixedly connected with two downward-hanging swing bolster traction pull rod seats (F-1-1) around the mass center of the swing bolster, the lower end surface of the middle part of the swing bolster (F-1) is fixedly connected with a transverse shock absorber seat (F-1-2), the middle side wall of the swing bolster (F-1) is rotationally and symmetrically fixedly connected with two vertical shock absorber seats (F-1-3), one side of the middle side wall of the swing bolster (F-1) close to the swing bolster traction pull rod seat (F-1-1) is rotationally and symmetrically fixedly connected with two swing bolster transverse stop seats (F-1-4), and the center of the swing bolster (F-1) is provided with a center pin hole (F-1-5);
Two sleeper beams are arranged below the two sleeper beams, two air springs (F-2) are correspondingly arranged on two frame air spring mounting seats (A-3) one by one and are positioned at the bottoms of two ends of the swing bolster (F-1); one end of the two traction pull rods (F-3) is fixedly connected to the swing bolster traction pull rod seat (F-1-1) through a rubber node, and the other end of the two traction pull rods is fixedly connected to the two framework traction pull rod seats (A-4) through a rubber node; one end of a sleeper beam lower transverse shock absorber (F-4) is fixedly connected to a transverse shock absorber seat (F-1-2) through a rubber node, and the other end of the sleeper beam lower transverse shock absorber is fixedly connected to a corresponding framework transverse shock absorber seat (A-13) through a rubber node; one end of each of the two vertical vibration dampers (F-5) is fixedly connected to the vertical vibration damper seat (F-1-3) through a rubber node, and the other end of each of the two vertical vibration dampers is fixedly connected to the vertical vibration damper seat (A-11) of the framework through a rubber node; the two side bearings (F-6) are fixedly connected to the upper end face of the swing bolster (F-1) and are positioned right above the two bolster underneath type secondary air springs (F-2).
6. The power steering frame based on a new motor suspension structure and an overhead bolster as claimed in claim 1, characterized in that the outer diameter of the gearbox mounting shaft section (d-1) of the axle (d) is reduced, forming a small diameter gearbox mounting shaft section (d-3); the inside of the easy-to-withdraw shaft type gear box (D) also comprises an easy-to-withdraw shaft type large gear bearing inner ring radial thickening sleeve (D-7) and two large gear bearing end covers (D-6) provided with screw hole arrays;
The inner diameter of the radial thickening sleeve (D-7) of the inner ring of the easy-to-withdraw shaft type large gear bearing is the same as the outer diameter of the small-diameter gear box mounting shaft section (D-3), and the inner diameter and the outer diameter are coaxially and fixedly connected through press mounting; the inner ring (s-3-1) of the large gear bearing (s-3) is coaxially and fixedly connected to the outer diameter of the radial thickening sleeve (D-7) of the inner ring of the easy-to-retract shaft type large gear bearing through press fitting; the radial outer circumferential end face of the easy-to-withdraw shaft type large gear bearing inner ring radial thickening sleeve (D-7) is provided with a screw hole array which is radially opened along the radial outer circumferential end face, two large gear bearing end covers (D-6) are fixedly connected to the front end face and the rear end face of the easy-to-withdraw shaft type large gear bearing inner ring radial thickening sleeve (D-7) through bolt groups along the circumferential array respectively, and the front end face and the rear end face of a large gear bearing (s-3) are sealed in an axle mounting hole (D-1-1); the flange plates of the gear box electric brush mechanism (D-8) are coaxially and fixedly connected with corresponding screw holes on the outer diameter side wall of the axle mounting hole (D-1-1) through a plurality of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057406.5A CN113022628B (en) | 2020-09-30 | 2020-09-30 | Power steering frame based on novel motor suspension structure and overhead swing bolster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057406.5A CN113022628B (en) | 2020-09-30 | 2020-09-30 | Power steering frame based on novel motor suspension structure and overhead swing bolster |
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| Publication Number | Publication Date |
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| CN113022628A CN113022628A (en) | 2021-06-25 |
| CN113022628B true CN113022628B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011057406.5A Active CN113022628B (en) | 2020-09-30 | 2020-09-30 | Power steering frame based on novel motor suspension structure and overhead swing bolster |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1259928B (en) * | 1961-09-11 | 1968-02-01 | Venissieux Snav Soc Nouv Atel | Bogie, especially for mine cars |
| AU2092867A (en) * | 1967-04-27 | 1968-10-31 | Rockwell Manufacturing Company | Railway trucks |
| CN102826099A (en) * | 2011-06-14 | 2012-12-19 | 阿母斯替德铁路公司 | Improved railway freight car truck |
| CN102963388A (en) * | 2012-07-10 | 2013-03-13 | 南车南京浦镇车辆有限公司 | Flexible direct-drive type steering rack |
| CN213262380U (en) * | 2020-09-30 | 2021-05-25 | 中车长春轨道客车股份有限公司 | Power bogie based on novel motor suspension structure and overhead swing bolster |
-
2020
- 2020-09-30 CN CN202011057406.5A patent/CN113022628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1259928B (en) * | 1961-09-11 | 1968-02-01 | Venissieux Snav Soc Nouv Atel | Bogie, especially for mine cars |
| AU2092867A (en) * | 1967-04-27 | 1968-10-31 | Rockwell Manufacturing Company | Railway trucks |
| CN102826099A (en) * | 2011-06-14 | 2012-12-19 | 阿母斯替德铁路公司 | Improved railway freight car truck |
| CN102963388A (en) * | 2012-07-10 | 2013-03-13 | 南车南京浦镇车辆有限公司 | Flexible direct-drive type steering rack |
| CN213262380U (en) * | 2020-09-30 | 2021-05-25 | 中车长春轨道客车股份有限公司 | Power bogie based on novel motor suspension structure and overhead swing bolster |
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|---|---|
| CN113022628A (en) | 2021-06-25 |
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