CN112208558B - Wheel hub motor of track chassis - Google Patents
Wheel hub motor of track chassis Download PDFInfo
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- CN112208558B CN112208558B CN202010898497.9A CN202010898497A CN112208558B CN 112208558 B CN112208558 B CN 112208558B CN 202010898497 A CN202010898497 A CN 202010898497A CN 112208558 B CN112208558 B CN 112208558B
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- 239000007788 liquid Substances 0.000 claims abstract description 104
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 239000000110 cooling liquid Substances 0.000 claims abstract description 40
- 239000000725 suspension Substances 0.000 claims abstract description 26
- 238000005057 refrigeration Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 230000009347 mechanical transmission Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 and when filling Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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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
- B61C9/46—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors forming parts of wheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a track chassis wheel hub motor, which belongs to the technical field of wheel hub motors and comprises a chassis and a frame, wherein the frame is arranged on the front side and the rear side of the chassis, the frame is connected with a suspension of the wheel hub motor for fixing, the suspension is connected with a wheel hub motor assembly and a cooling device, and the cooling device extends to the wheel hub motor assembly to reduce the temperature. The invention provides a wheel hub motor of a rail chassis, which utilizes a liquid inlet pipe and a liquid outlet pipe to discharge cooling liquid into a shaft rod to realize the internal cooling of the shaft rod, the liquid inlet pipe and the liquid outlet pipe are respectively and symmetrically arranged on two side surfaces of a sleeve seat, the liquid inlet pipe and the liquid outlet pipe are positioned in the same radial direction, the liquid outlet pipe is connected with the input end of a refrigerating component, the temperature of the cooling liquid is reduced when the refrigerating component works, the cooling liquid flows into the liquid inlet pipe, the cooling liquid which exchanges heat flows in the liquid outlet pipe and flows into the refrigerating component to refrigerate again so as to complete the continuous circulation of the cooling liquid, and therefore, the function of continuously radiating the internal of a wheel hub motor assembly is realized.
Description
Technical Field
The invention relates to the technical field of hub motors, in particular to a hub motor of a rail chassis truck.
Background
In order to reduce energy consumption and environmental pollution, electric vehicles with zero pollution and zero emission are receiving more and more attention, and the electric vehicles are powered by clean energy. The in-wheel motor driven electric vehicle has been a research hotspot due to the advantages of simple mechanical transmission structure, higher driving efficiency, low cost and the like. The existing electric automobile adopts a driving mode of a central motor plus a mechanical transmission mode mechanical differential or a wheel hub motor plus an electronic software differential.
Although the mechanical differential can realize perfect differential, the left and right hub motors can rotate at different rotating speeds, the requirement that the hub motors on two sides run at different distances in a pure rolling mode as far as possible is met, and the friction between tires and the ground is reduced. However, since it has a complicated mechanical transmission mechanism, it results in a complicated structure, an increase in weight of the vehicle body, and mechanical transmission loss.
The electronic software differential mechanism is used for calculating according to steering angle and other information acquired by the vehicle-mounted sensor and the acquired information by the controller to obtain the rotating speeds of the left and right hub motors, and performing differential control on the left and right hub motors respectively, wherein the rotating speeds of the left and right hub motors are calculated and determined. However, since the road surface on which the electric vehicle runs is not a flat road surface, and pits are more, and the electronic software differential cannot collect actual road surface information, the electric vehicle often cannot run in an unequal distance manner in a pure rolling manner all the time due to the factor of uneven ground, the friction between the tire and the ground is increased when the ground is uneven, the new energy vehicle is now a promising field in the automobile industry, and the driving technology of the new energy vehicle type is greatly different from the driving technology of the traditional internal combustion engine vehicle, such as the hub motor driving technology.
The wheel hub motor technology is also called wheel built-in motor technology, and its most important feature is that the power, transmission and brake devices are all integrated into the wheel hub, so that the mechanical part of the electric vehicle is greatly simplified. Compared with the traditional vehicle driving mode, the hub motor is simpler in structure, small in size, higher in traditional efficiency and capable of realizing multiple complex driving modes.
But the requirement of in-wheel motor to operational environment is harsher, except need solving waterproof, dust proof scheduling problem, still need dispel the heat to in-wheel motor, and current in-wheel motor adopts the nature forced air cooling structure usually, dispels the heat to motor casing through the forced air cooling promptly. Although the running vehicle under normal working conditions can be met, when the vehicle is in special working conditions, such as working conditions of climbing, snowfield and muddy road, obviously, the load of the hub motor is increased, the heat can be increased rapidly in the working process, the existing air-cooled heat dissipation system is difficult to meet the heat dissipation requirement, and the phenomena of burning of the hub motor and the like can be caused; accordingly, improvements to this need to be made by those skilled in the art.
Disclosure of Invention
The invention aims to provide a wheel hub motor of a rail chassis, wherein a liquid inlet pipe and a liquid outlet pipe are respectively and symmetrically arranged on two side surfaces of a sleeve seat, the liquid inlet pipe and the liquid outlet pipe are positioned in the same radial direction, the liquid outlet pipe is connected with the input end of a refrigerating component, the temperature of cooling liquid is reduced when the refrigerating component works and flows into the liquid inlet pipe, the cooling liquid which exchanges heat flows in the liquid outlet pipe and flows into the refrigerating component to refrigerate again so as to complete the continuous circulation of the cooling liquid, and therefore the function of continuously dissipating heat inside a wheel hub motor assembly is realized, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a track chassis car wheel hub motor, includes chassis and frame, and the frame is installed in the front and back both sides on the chassis to connect the suspension that is used for fixed wheel hub motor on the frame, the suspension is connected with wheel hub motor assembly and heat sink, and the heat sink extends to wheel hub motor assembly and reduces the temperature.
Furthermore, the frame comprises a main beam, secondary beams, reinforcing beams, side beams and steel rods, wherein one ends of the main beam and the steel rods are inserted into the front end and the rear end of the chassis, the steel rods are symmetrically arranged on the two sides of the main beam and are welded with the secondary beams, the two parallel secondary beams penetrate through the main beam and are fixed with the main beam, the two ends of the secondary beams are fixed through the reinforcing beams and the side beams, the side beams are provided with support plates in the vertical direction, and the support plates are connected with a cooling device.
Furthermore, one side of the suspension is fixed with the side beam and the supporting plate, the other side of the suspension is connected with the hub motor assembly, and a brake pad is arranged on the suspension.
Furthermore, the hub motor assembly comprises a hub, a tire, a fixed rotor, a coil component and a stator, the tire is sleeved on the outer peripheral surface of the hub, the fixed rotor is fixed with the inner peripheral surface of the hub, one side of the coil component is coated by the fixed rotor, the coil component is movably connected with the fixed rotor, the other side of the coil component is fixed by the stator, and the stator is meshed with the suspension through bolts.
Furthermore, a first round hole is processed at the circle center of the fixed rotor, a radiating fin is fixed on the outer wall in the radial direction, the radiating fin for fixing the rotor is attached to the hub, and the length of the radiating fin is not more than 1 cm.
Further, the coil assembly comprises a coil winding, an outer ring, an inner ring and a motor controller, the outer peripheral face of the inner ring is sleeved with the movable outer ring, the motor controller is arranged on the inner peripheral face of the inner ring, a ring groove is formed between the inner ring and the motor controller, the coil winding is inserted into the ring groove on the outer ring at equal intervals and fixed between the inner ring and the motor controller, the side peripheral face of the outer ring and the fixed rotor are fixed, and the coil winding drives the outer ring to rotate and synchronously drives the fixed rotor to rotate in the process of cutting the magnetic induction lines and is used for rotating the hub.
Furthermore, a protruding inserting ring is fixed at the circle center of the stator and inserted into the ring groove, the stator is fixed with the motor controller and the inner ring, and the stator limits the rotation of the motor controller and the inner ring.
Furtherly, the heat sink includes cover seat, axostylus axostyle, feed liquor pipe and drain pipe, and feed liquor pipe and drain pipe symmetry respectively set up on the both sides face of cover seat to all be in the intercommunication with the inside of cover seat, in the cover seat was inserted to the one end of axostylus axostyle, the other end of axostylus axostyle passed the stator and extends to in the machine controller.
Furthermore, the axostylus axostyle is provided with cooling channel along length direction, and cooling channel constitutes the C type, and wherein cooling channel's import and export all are located the coplanar of axostylus axostyle to the pipeline of cooling channel's import and export embedding is connected with feed liquor pipe and drain pipe one-to-one respectively.
Furthermore, the sleeve seat and the shaft rod are connected in a sealing mode through threads, interference connection and buckles, cooling liquid of the liquid inlet pipe flows into a cooling channel of the shaft rod along the sleeve seat, exchanges heat with the motor controller and the hub motor assembly, is discharged from the liquid outlet pipe, and is continuously circulated for refrigeration.
Compared with the prior art, the invention has the beneficial effects that: in the wheel hub motor of the rail chassis vehicle, the cooling channel is respectively connected with the liquid inlet pipe and the liquid outlet pipe to form a loop, wherein the inlet and the outlet of the cooling channel are positioned on the same surface of the shaft lever, the pipelines embedded into the inlet and the outlet of the cooling channel are respectively connected with the liquid inlet pipe and the liquid outlet pipe in a one-to-one correspondence manner, the liquid inlet pipe and the liquid outlet pipe are used for discharging cooling liquid into the shaft lever to realize the internal cooling of the shaft lever, the liquid inlet pipe and the liquid outlet pipe are respectively and symmetrically arranged on two side surfaces of the sleeve seat, the liquid inlet pipe and the liquid outlet pipe are positioned on the same radial direction, the liquid outlet pipe is connected with the input end of the refrigeration component, when the refrigerating component works, the temperature of the cooling liquid is reduced, the cooling liquid flows into the liquid inlet pipe, the cooling liquid which exchanges heat flows in the liquid outlet pipe, and the cooling liquid flows into the refrigeration component to refrigerate again so as to complete the continuous circulation of the cooling liquid, thereby realizing the continuous function of radiating the inside of the hub motor assembly.
The sleeve seat and the shaft rod are connected in a sealing mode through threads, interference connection and buckles, cooling liquid of the liquid inlet pipe flows into a cooling channel of the shaft rod along the sleeve seat, exchanges heat with the motor controller and the hub motor assembly, is discharged from the liquid outlet pipe, is continuously circulated for refrigeration, and is suitable for different application occasions through different connection modes.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is an assembled front view of the in-wheel motor assembly of the present invention;
FIG. 3 is a rear view of the hub motor assembly of the present invention;
FIG. 4 is an exploded view of the in-wheel motor assembly of the present invention;
FIG. 5 is a view of a stationary rotor and coil assembly connection of the present invention;
FIG. 6 is an exploded view of the coil assembly of the present invention;
FIG. 7 is a connection diagram of the hub motor assembly and a cooling device according to the present invention;
FIG. 8 is a connection diagram of the in-wheel motor assembly and the shaft of the present invention;
fig. 9 is a structural view of the cooling device of the present invention.
In the figure: 1. a chassis; 2. a frame; 21. a main beam; 22. a secondary beam; 23. a reinforcing beam; 24. a side beam; 241. a support plate; 25. a steel rod; 3. a suspension; 4. a hub motor assembly; 41. a hub; 42. a tire; 43. fixing the rotor; 431. a first circular hole; 432. a heat sink; 44. a coil assembly; 441. a coil winding; 442. an outer ring; 443. an inner ring; 444. a motor controller; 45. a stator; 451. inserting a ring; 5. a cooling device; 51. a sleeve seat; 52. a shaft lever; 521. a cooling channel; 53. a liquid inlet pipe; 54. a liquid outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, a wheel hub motor for a railway chassis comprises a chassis 1 and a frame 2, wherein the frame 2 is installed on the front and rear sides of the chassis 1, the frame 2 has buffering and supporting functions, the hardness of the track chassis truck can be adjusted according to the use purpose of the track chassis truck, so that the track chassis truck has better matching device comfort, and the frame 2 also has a certain shock absorption function, the added shock absorption ensures that the track chassis vehicle has higher balance effect when in operation, and a suspension 3 of the wheel hub motor is connected on the frame 2 for fixing, the suspension 3 acts by transmitting force and torque acting between the wheel hub motor assembly 4 and the frame 2, and the suspension 3 is connected with the in-wheel motor assembly 4 and the cooling device 5, and the cooling device 5 extends to the in-wheel motor assembly 4 to reduce the temperature.
The frame 2 comprises a main beam 21, a secondary beam 22, a reinforcing beam 23, a side beam 24 and a steel rod 25, wherein one end of the main beam 21 and one end of the steel rod 25 are inserted into the front end and the rear end of the chassis 1, the main beam 21 and the steel rod 25 play a role in supporting the two ends of the chassis 1, the steel rods 25 on the two sides share the supporting force of the main beam 21, the steel rods 25 are symmetrically arranged on the two sides of the main beam 21 and are welded with the secondary beam 22, the two parallel secondary beams 22 penetrate through the main beam 21 and are fixed with the same, the arranged parallel secondary beams 22 fix the main beam 21 together, the two ends of the secondary beam 22 are fixed through the reinforcing beam 23 and the side beam 24, the reinforcing beam 23 fixes the two ends of the secondary beam 22 together, the side beam 24 enables the ports of the secondary beam 22 to be connected in a spot welding manner, the welding gap between the side beam 24 and the secondary beam 22 is filled with welding powder, and when filling, dust on the surfaces of the side beam 24 and the secondary beam 22 needs to be removed firstly, the joint of the side beam 24 and the auxiliary beam 22 is welded in a circle by a spot welding machine, a supporting plate 241 in the vertical direction is installed on the side beam 24, the supporting plate 241 is made of alloy materials, a hole for the shaft rod 52 to penetrate is formed in the supporting plate 241, and the supporting plate 241 is connected with the cooling device 5.
One side of the suspension 3 is fixed between the side beam 24 and the supporting plate 241, the other side of the suspension 3 is connected with the hub motor assembly 4, a brake pad is installed on the suspension 3, the suspension 3 is made of an existing finished product, and the brake pad can work on the hub motor assembly 4 on the suspension 3 to reduce the rotating speed of the hub motor assembly.
Referring to fig. 2-4, the in-wheel motor assembly 4 includes a wheel hub 41, a tire 42, a fixed rotor 43, a coil assembly 44 and a stator 45, the tire 42 is sleeved on an outer circumferential surface of the wheel hub 41, the tire 42 is made of a finished material and is sleeved on the wheel hub 41 to cover an outer side thereof, the tire 42 is in contact with the ground, the fixed rotor 43 is fixed to an inner circumferential surface of the wheel hub 41, the fixed rotor 43 and the wheel hub 41 are connected as a whole, the fixed rotor 43 and the wheel hub 41 rotate synchronously, one side of the coil assembly 44 is covered by the fixed rotor 43, the fixed rotor 43 covers a portion of the coil assembly 44 and is movably connected between the coil assembly 44 and the fixed rotor 43, the coil assembly 44 generates a magnetic induction cutting action after being energized to rotate the fixed rotor 43, the coil assembly 44 drives the fixed rotor 43 to rotate, the fixed rotor 43 rotates relative to the coil assembly 44, the other side of the coil assembly 44 is fixed by the stator 45, the stator 45 is engaged with the suspension 3 by bolts, the position of the coil assembly 44 is fixed by the stator 45, and since the position of the suspension 3 is fixed, the position of the stator 45 connected to the suspension 3 is also fixed, and the position of the stator 45 does not move.
Referring to fig. 5, a first circular hole 431 is processed at the center of the fixed rotor 43, heat dissipation fins 432 are fixed on the outer wall in the radial direction, the number of the heat dissipation fins 432 is set according to requirements, the heat dissipation fins 432 of the fixed rotor 43 are attached to the hub 41, the length of the heat dissipation fins 432 is not greater than 1cm, a certain gap is left between the hub 41 and the fixed rotor 43 through the set heat dissipation fins 432, heat generated by the fixed rotor 43 in the rotation process is discharged into the gap between the hub 41 and the fixed rotor 43 along with the heat dissipation fins 432, the surface of the fixed rotor 43 is intensively cooled from the outside, and part of the hub motor assembly 4 is cooled.
Referring to fig. 6, the coil assembly 44 includes a coil winding 441, an outer ring 442, an inner ring 443 and a motor controller 444, the outer circumferential surface of the inner ring 443 is sleeved with the movable outer ring 442, the outer ring 442 rotates around the inner ring 443, the inner circumferential surface of the inner ring 443 is provided with the motor controller 444, since the existing in-wheel motor assembly 4 adopts a brushless motor, when the brushless motor works, the relative positions of the fixed rotor 43 and the stator 45 before starting are known in advance, a sensor must be used to detect the positions of the fixed rotor 43 and the stator 45, the motor controller 444 drives a power tube through a built-in controller to perform phase change, so as to obtain the positions of the fixed rotor 43 and the stator 45, a ring groove is formed between the inner ring 443 and the motor controller 444, the coil winding 441 is inserted into the groove hole of the outer ring 442 at equal intervals, and fixed between the two, the coil winding 441 is just inserted into the groove hole of the outer ring 442, and the position is fixed, the coil winding 441 is electrified to generate magnetic induction lines, the lateral periphery of the outer ring 442 and the fixed rotor 43 are fixed, the coil winding 441 drives the outer ring 442 to rotate and synchronously drive the fixed rotor 43 to rotate in the process of cutting the magnetic induction lines, the fixed rotor 43 drives the hub 41 to rotate in the process of rotating, and the fixed rotor 43 drives the hub 41 to rotate so as to provide power for rotating the two.
The center of the stator 45 is fixed with a protruded insert ring 451, the insert ring 451 is inserted into a ring groove, the stator 45 is fixed between the motor controller 444 and the inner ring 443, the stator 45 limits the rotation of the motor controller 444 and the inner ring 443, the ring groove is arranged to be just inserted by the insert ring 451, during the insertion of the insert ring 451, the stator 45 connects the motor controller 444 and the inner ring 443 together, and at the same time, the positions of the motor controller 444 and the inner ring 443 are also determined.
Referring to fig. 7, the temperature reducing device 5 includes a sleeve seat 51, a shaft rod 52, a liquid inlet pipe 53 and a liquid outlet pipe 54, the liquid inlet pipe 53 and the liquid outlet pipe 54 are respectively symmetrically disposed on two side surfaces of the sleeve seat 51, the liquid inlet pipe 53 and the liquid outlet pipe 54 are located in the same radial direction, and the diameters of pipe orifices of the two are the same, the liquid inlet pipe 53 is connected with an output end of a refrigeration component, the liquid outlet pipe 54 is connected with an input end of the refrigeration component, when the refrigeration component works, the temperature of cooling liquid is reduced, the cooling liquid flows into the liquid inlet pipe 53, the cooling liquid having exchanged heat flows into the liquid outlet pipe 54, the cooling liquid flows into the refrigeration component, and is re-refrigerated, so as to complete continuous circulation of the cooling liquid, thereby realizing a continuous heat dissipation function inside the hub motor assembly 4, and being communicated with the inside of the sleeve seat 51, the sleeve seat 51 is a member with an open end and a closed end, one end of the shaft rod 52 is inserted into the sleeve seat 51, one end of the shaft rod 52 is inserted into the opening of the sleeve seat 51, both ends of the socket 51 are sealed, and the other end of the shaft 52 extends into the motor controller 444 through the stator 45, and the shaft 52 is arranged to first pass through the hole of the supporting plate 241 and then pass through the stator 45 to the motor controller 444.
Referring to fig. 8-9, the shaft 52 is provided with cooling channels 521 along the length direction, the channels of the cooling channels 521 are matched with the calibers of the liquid inlet pipe 53 and the liquid outlet pipe 54, the cooling channels 521 form a C-shape, the cooling channels 521 of the C-shape are respectively connected with the liquid inlet pipe 53 and the liquid outlet pipe 54 to form a loop, wherein the inlet and the outlet of the cooling channels 521 are both located on the same surface of the shaft 52, and the pipelines embedded in the inlet and the outlet of the cooling channels 521 are respectively connected with the liquid inlet pipe 53 and the liquid outlet pipe 54 in a one-to-one correspondence manner, so that the liquid inlet pipe 53 and the liquid outlet pipe 54 discharge the cooling liquid into the shaft 52 to reduce the temperature inside the shaft 52.
The sleeve seat 51 and the shaft rod 52 are connected in a sealing mode through threads, interference connection and clamping, cooling liquid of the liquid inlet pipe 53 flows into the cooling channel 521 of the shaft rod 52 along the sleeve seat 51, exchanges heat with the motor controller 444 and the hub motor assembly 4, discharges the cooling liquid from the liquid outlet pipe 54, continuously circulates for refrigeration, and is suitable for different application occasions through different connection modes.
Example two:
the structure of the cooling device 5 is changed, the rest is the same as that of the first embodiment, the cooling device 5 comprises a sleeve seat 51, a shaft rod 52, a liquid inlet pipe 53 and a liquid outlet pipe 54, the liquid inlet pipe 53 and the liquid outlet pipe 54 are respectively symmetrically arranged on two side surfaces of the sleeve seat 51, the liquid inlet pipe 53 and the liquid outlet pipe 54 are located on radial directions of two sides, the diameters of pipe orifices of the liquid inlet pipe 53 and the liquid outlet pipe 54 are the same, the liquid inlet pipe 53 is connected with an output end of a refrigerating component, the liquid outlet pipe 54 is connected with an input end of the refrigerating component, when the refrigerating component works, the temperature of cooling liquid is reduced, the cooling liquid flows into the liquid inlet pipe 53, the cooling liquid which exchanges heat flows into the refrigerating component and is cooled again, so that the continuous circulation of the cooling liquid is completed, the continuous heat dissipation function of the interior of the hub motor assembly 4 is realized, the continuous heat dissipation function is communicated with the interior of the sleeve seat 51, the sleeve seat 51 is a member with an opening at one end and a closed end, one end of the shaft 52 is inserted into the sleeve seat 51, one end of the shaft 52 is inserted into the opening of the sleeve seat 51, both ends of the sleeve seat 51 are sealed, the other end of the shaft 52 passes through the stator 45 and extends into the motor controller 444, and the shaft 52 passes through the hole of the supporting plate 241 first and then sequentially passes through the stator 45 and the motor controller 444.
Example three:
the structure of the cooling device 5 is changed, the rest is the same as the first embodiment, the cooling device 5 comprises a shaft rod 52, a liquid inlet pipe 53 and a liquid outlet pipe 54, the liquid inlet pipe 53 and the liquid outlet pipe 54 are respectively and symmetrically arranged on two side surfaces of the shaft rod 52, the diameters of pipe orifices of the liquid inlet pipe 53 and the liquid outlet pipe 54 are the same, the liquid inlet pipe 53 is connected with an output end of a refrigerating component, the liquid outlet pipe 54 is connected with an input end of the refrigerating component, the temperature of cooling liquid is reduced when the refrigerating component works, the cooling liquid flows into the liquid inlet pipe 53, the cooling liquid which exchanges heat flows in the liquid outlet pipe 54, flows into the refrigerating component, the continuous circulation of the cooling liquid is completed through re-refrigeration, the continuous heat dissipation function of the interior of the hub motor assembly 4 is realized, the liquid inlet pipe 53 and the liquid outlet pipe 54 are combined with the shaft rod 52, two ends of a cooling channel 521 are respectively connected with the liquid inlet pipe 53 and the liquid outlet pipe 54, and the structure of the sleeve seat 51 is removed, the shaft rod 52 is directly cooled, so that the cost of equipment is reduced, and the refrigerating effect is not influenced.
Example four:
the structure of the coil assembly 44 and the cooling device 5 is changed, the rest is the same as the embodiment, the coil assembly 44 includes the coil winding 441, the outer ring 442, the inner ring 443 and the motor controller 444, the outer ring 442 is sleeved on the outer circumferential surface of the inner ring 443, the outer ring 442 rotates around the inner ring 443, the motor controller 444 is disposed on the inner circumferential surface of the inner ring 443, a ring groove is formed between the inner ring 443 and the motor controller 444, the coil winding 441 is inserted into the ring groove of the outer ring 442 at equal intervals and fixed therebetween, the fixed rotor 43 drives the hub 41 to rotate during the rotation, the hub 41 is driven to rotate by the fixed rotor 43 to provide a power effect for the rotation of the two, and the spiral cooling channel 521 is disposed in the inner ring 443, the cooling channel 521 is changed into a spiral shape, the inlet and the outlet of the cooling channel 521 are respectively located at two ends of the shaft 52, the liquid inlet 53 and the liquid outlet 54 are respectively symmetrically disposed on two side surfaces of the sleeve seat 51, the connection area between the inner part of the shaft rod 52 and the inner part of the shaft rod is increased through the increased spiral structure, the cooling effect is more obvious, the pipelines on the two sides of the cooling channel 521 are communicated with the cooling channel 521 of the spiral inner ring 443, the inner part of the coil assembly 44 is further cooled, and the heat dissipation effect is further improved.
In summary, the following steps: in the wheel hub motor of the rail chassis vehicle, the cooling channel 521 is respectively connected with the liquid inlet pipe 53 and the liquid outlet pipe 54 to form a loop, wherein the inlet and the outlet of the cooling channel 521 are positioned on the same surface of the shaft rod 52, the pipelines embedded into the inlet and the outlet of the cooling channel 521 are respectively connected with the liquid inlet pipe 53 and the liquid outlet pipe 54 in a one-to-one correspondence manner, the cooling liquid is discharged into the shaft rod 52 by utilizing the liquid inlet pipe 53 and the liquid outlet pipe 54 to realize the internal cooling of the shaft rod 52, the liquid inlet pipe 53 and the liquid outlet pipe 54 are respectively and symmetrically arranged on the two side surfaces of the sleeve seat 51, the liquid inlet pipe 53 and the liquid outlet pipe 54 are positioned in the same radial direction, the liquid outlet pipe 54 is connected with the input end of the refrigeration component, the temperature of the cooling liquid is reduced when the refrigeration component works, the cooling liquid flows into the liquid inlet pipe 53, the cooling liquid which exchanges heat flows into the refrigeration component and is re-refrigerated to finish the continuous circulation of the cooling liquid, thereby realizing the function of continuously radiating the inside of the hub motor assembly 4.
The sleeve seat 51 and the shaft rod 52 are connected in a sealing mode through threads, interference connection and clamping, cooling liquid of the liquid inlet pipe 53 flows into the cooling channel 521 of the shaft rod 52 along the sleeve seat 51, exchanges heat with the motor controller 444 and the hub motor assembly 4, discharges the cooling liquid from the liquid outlet pipe 54, continuously circulates for refrigeration, and is suitable for different application occasions through different connection modes.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. A track chassis vehicle hub motor is characterized by comprising a chassis (1) and a vehicle frame (2), wherein the vehicle frame (2) is arranged on the front side and the rear side of the chassis (1), a suspension (3) of the hub motor for fixing is connected to the vehicle frame (2), the suspension (3) is connected with a hub motor assembly (4) and a cooling device (5), and the cooling device (5) extends to the hub motor assembly (4) to reduce the temperature;
the cooling device (5) comprises a sleeve seat (51), a shaft rod (52), a liquid inlet pipe (53) and a liquid outlet pipe (54), wherein the liquid inlet pipe (53) and the liquid outlet pipe (54) are respectively and symmetrically arranged on two side surfaces of the sleeve seat (51) and are communicated with the inside of the sleeve seat (51), one end of the shaft rod (52) is inserted into the sleeve seat (51), and the other end of the shaft rod (52) penetrates through the stator (45) and extends into the motor controller (444);
the shaft rod (52) is provided with a cooling channel (521) along the length direction, the cooling channel (521) forms a C shape, an inlet and an outlet of the cooling channel (521) are both positioned on the same surface of the shaft rod (52), and pipelines embedded into the inlet and the outlet of the cooling channel (521) are respectively connected with the liquid inlet pipe (53) and the liquid outlet pipe (54) in a one-to-one correspondence manner;
the sleeve seat (51) and the shaft rod (52) are in sealed connection through threads, interference connection and buckles, cooling liquid of the liquid inlet pipe (53) flows into a cooling channel (521) of the shaft rod (52) along the sleeve seat (51), exchanges heat with the motor controller (444) and the hub motor assembly (4), is discharged from the liquid outlet pipe (54), and is continuously circulated for refrigeration;
the hub motor assembly (4) comprises a hub (41), a tire (42), a fixed rotor (43), a coil assembly (44) and a stator (45), the tire (42) is sleeved on the outer peripheral surface of the hub (41), the fixed rotor (43) is fixed with the inner peripheral surface of the hub (41), one side of the coil assembly (44) is coated by the fixed rotor (43), the coil assembly (44) is movably connected with the fixed rotor (43), the other side of the coil assembly (44) is fixed by the stator (45), and the stator (45) is meshed with the suspension (3) through bolts;
the coil component (44) comprises a coil winding (441), an outer ring (442), an inner ring (443) and a motor controller (444), the outer peripheral surface of the inner ring (443) is sleeved with the movable outer ring (442), the motor controller (444) is arranged on the inner peripheral surface of the inner ring (443), a ring groove is formed between the inner ring (443) and the motor controller (444), the coil winding (441) is inserted into the groove hole in the outer ring (442) at equal intervals and fixed between the coil winding and the groove hole, the lateral peripheral surface of the outer ring (442) and the fixed rotor (43) are fixed between the lateral peripheral surface of the outer ring (442), and the coil winding (441) drives the outer ring (442) to rotate and synchronously drive the fixed rotor (43) to rotate in the magnetic induction line cutting process and is used for rotation of the hub (41).
2. The wheel hub motor of the rail chassis vehicle as claimed in claim 1, wherein the vehicle frame (2) comprises a main beam (21), secondary beams (22), a reinforcing beam (23), side beams (24) and a steel rod (25), one ends of the main beam (21) and the steel rod (25) are inserted into the front end and the rear end of the chassis (1), the steel rods (25) are symmetrically arranged on the two sides of the main beam (21) and are welded with the secondary beams (22), the two parallel secondary beams (22) penetrate through the main beam (21) and are fixed with the main beam (21), the two ends of the secondary beams (22) are fixed through the reinforcing beam (23) and the side beams (24), the vertical supporting plate (241) is mounted on the side beam (24), and the cooling device (5) is connected to the supporting plate (241).
3. A track chassis wheel hub motor according to claim 2, characterized in that one side of the suspension (3) is fixed between the side beam (24) and the support plate (241), the other side of the suspension (3) is connected with the wheel hub motor assembly (4), and the suspension (3) is provided with a brake pad.
4. A rail-chassis hub motor according to claim 1, wherein a first circular hole (431) is formed at the center of the fixed rotor (43) and a heat sink (432) is fixed to the outer wall in the radial direction, the heat sink (432) of the fixed rotor (43) is fitted to the hub (41), and the length of the heat sink (432) is not more than 1 cm.
5. A track chassis in-wheel motor according to claim 1, characterized in that the centre of the stator (45) is fixed with a protruding insert ring (451), the insert ring (451) is inserted into the ring groove, the stator (45) is fixed between the motor controller (444) and the inner ring (443), and the stator (45) limits the rotation of the motor controller (444) and the inner ring (443).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898497.9A CN112208558B (en) | 2020-08-31 | 2020-08-31 | Wheel hub motor of track chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898497.9A CN112208558B (en) | 2020-08-31 | 2020-08-31 | Wheel hub motor of track chassis |
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| Publication Number | Publication Date |
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| CN112208558A CN112208558A (en) | 2021-01-12 |
| CN112208558B true CN112208558B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010898497.9A Active CN112208558B (en) | 2020-08-31 | 2020-08-31 | Wheel hub motor of track chassis |
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Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959555Y (en) * | 2006-10-13 | 2007-10-10 | 寿月光 | An electric wheel hub motor |
| CN102044932A (en) * | 2009-10-13 | 2011-05-04 | 鲁泊凡 | Hub motor with multiple setting modes of rim and braking device |
| TWI401171B (en) * | 2009-12-24 | 2013-07-11 | Ind Tech Res Inst | Hub motor |
| DE102013201759B4 (en) * | 2013-02-04 | 2019-06-27 | Schaeffler Technologies AG & Co. KG | Wheel bearing module for driving and / or storing a motor vehicle wheel, use of a wheel bearing module and method for driving and / or storing a motor vehicle wheel of a motor vehicle |
| CN203401945U (en) * | 2013-08-15 | 2014-01-22 | 安徽工程大学 | Electric drive wheel with cooling function |
| CN104410237A (en) * | 2014-11-27 | 2015-03-11 | 沈阳工业大学 | Integral direct-drive disc-type wheel hub motor |
| CN205882992U (en) * | 2016-08-09 | 2017-01-11 | 詹华森 | Integrative in -wheel motor of global function |
| CN206060468U (en) * | 2016-08-10 | 2017-03-29 | 常州市吉庆机电有限公司 | A kind of efficient high-speed wheel hub motor with refrigerating function |
| CN107317452B (en) * | 2017-08-21 | 2019-01-15 | 彭希南 | Integrated permanent magnetism brushless direct current hub motor |
| CN108583728B (en) * | 2018-06-22 | 2024-01-30 | 芜湖正众汽车科技有限公司 | Unmanned platform truck and working method thereof |
| CN108599451B (en) * | 2018-06-27 | 2024-01-26 | 沈阳工业大学 | Enhanced heat transfer structure of hub motor for electric automobile |
| CN109625092A (en) * | 2019-01-25 | 2019-04-16 | 威海鸣川汽车技术有限公司 | A kind of electric car automatic Pilot chassis |
| CN110022029A (en) * | 2019-04-26 | 2019-07-16 | 贵州航天林泉电机有限公司 | A kind of outer rotor hub motor drive assembly |
| CN111181284B (en) * | 2020-01-13 | 2022-03-29 | 合肥骐骥电驱动技术有限公司 | Disc type hub driving motor |
| CN111245142A (en) * | 2020-01-21 | 2020-06-05 | 同济大学 | Magnetic dynamic sealing outer rotor hub motor structure |
| CN111371236B (en) * | 2020-04-16 | 2024-05-31 | 宁德时代电机科技有限公司 | High-efficiency high-heat-dissipation permanent magnet hub motor device with high-torque circumferential circular waterway |
| CN111416450B (en) * | 2020-05-06 | 2021-08-06 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
-
2020
- 2020-08-31 CN CN202010898497.9A patent/CN112208558B/en active Active
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