CN103158755A - Limiting mechanism for steering wheel of motor vehicle - Google Patents
Limiting mechanism for steering wheel of motor vehicle Download PDFInfo
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- CN103158755A CN103158755A CN201310090520.1A CN201310090520A CN103158755A CN 103158755 A CN103158755 A CN 103158755A CN 201310090520 A CN201310090520 A CN 201310090520A CN 103158755 A CN103158755 A CN 103158755A
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- steering wheel
- supporting seat
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention discloses a limiting mechanism for a steering wheel of a motor vehicle. The limiting mechanism aims at achieving steering mode switching and accurate limiting of the steering wheel in any position. A linear guide rail is fixedly installed on a box body. A sliding block is connected on the linear guide rail in a sliding mode. A notch plate and the sliding block are fixedly connected on two sides of a stroke baffle. A long groove is formed in the lower side of the stroke baffle, and a short groove is formed in the long groove. A pull pin disc is fixed on a driving gear shaft. A pull pin is fixed on the pull pin disc. The pull pin disc and the notch plate are installed in a transmission and matched mode. A stop dog supporting seat is fixedly connected on a base plate of the box body. A limiting stop dog is installed in a slide way of the stop dog supporting seat in a moving and matched mode. A spring is installed in the slide way of the stop dog supporting seat. A driven frame is fixedly connected at the lower end of the limiting stop dog. A motor is fixedly connected on the stop dog supporting seat. A cam is fixed connected on an output shaft of the motor. The outer contour of the cam contacts with the inner surface of the bottom portion of the driven frame in the moving and matched mode. The limiting mechanism for the steering wheel of the motor vehicle is capable of achieving steering mode switching and accurate limiting of the steering wheel in any position.
Description
Technical field
The present invention relates to a kind of stop gear, specifically a kind of motor vehicle steering wheel stop gear.
Background technology
The function of steering swivel system is the travel direction of maneuver vehicle, and system should be able to keep vehicle stabilization ground along straight-line travelling as required, and can change neatly as requested travel direction.Basic demand to steering swivel system is that manipulation light and flexible, working stability are reliable, use is economical durable, and turning efficiency is to guarantee vehicle safe driving, alleviates the labour intensity of chaufeur, the key factor of raising work production rate.
Along with the raising of application scenario working condition requirement and the development of current technology, the vehicle various aspects of performance needs further to improve, especially aspect steering swivel system, proposed that stable direction is reliable, enough large etc. the technical requirementss of operation light and flexible, steering power, and exist in original steering swivel system in engineering truck sensitivity unadjustable, there is no a problem such as road feel.For improving the Vehicular turn performance, the scientific worker is devoted to study the steering-by-wire technology.It is to connect and each element of controlling steering swivel system replaces traditional machinery or hydraulic connecting by microelectronic technique.Due to the mechanical connection of having cancelled between bearing circle and wheel flutter, the various restrictions of conventional steering system have been completely free of, design, the assembling of vehicle are greatly simplified, but also the force transfering characteristic and the angle transmission characteristic that can free design vehicle turn to are the significant innovations of wheel steering system.The steering-by-wire technology adopts sensor record driver's the data that turn to, then by data line, signal is passed to micro-control unit MCU on car, the comprehensive relevant signal of MCU judges, send the instruction of controlling Vehicular turn, then MCU detects angle signal and the given instruction comparison that vehicle turns over, consist of closed loop feedback and control, realize handling maneuver stable, secure high performance.the rotational angle range of bearing circle can be regulated according to actual condition in the wire-controlled steering system of some engineering trucks, when running at high speed operating mode, bearing circle cw or the scope that rotates counterclockwise are 900 °, when one direction is rotated 900 ° continuously, just reach that the vehicle right side turns to entirely or the left position that entirely turns to, when the low speed loading operation, bearing circle cw or the scope that rotates counterclockwise are 180 °, when one direction is rotated 180 ° continuously, just reach that the vehicle right side turns to entirely or the left position that entirely turns to, when forwarding end position to, bearing circle need to have mechanical device to carry out spacing.Existing technical scheme is that the bearing circle driven gear rotates, thereby the tooth bar that is engaged with is moved, and by the end position that block limits tooth bar is set at diverse location, realizes turning to the switching of pattern.Because the angle of rotating of steering wheel is large, therefore the size of tooth bar and required working space will be very large, yet the limited space of bottom plate of driving cab is difficult for carrying out design and installation.In existing technical scheme, bearing circle just must return the initial position of vehicle can the straight-line travelling state time could realize that a kind of pattern that turns to turns to the switching of pattern to another kind, lacked practicality and alerting ability.
Therefore design a kind of motor vehicle steering wheel stop gear and become and be necessary very much, be conducive to promote exploitation, the development and application of wire-controlled steering system.
Summary of the invention
Motor vehicle steering wheel stop gear provided by the invention can realize turning to when bearing circle at an arbitrary position the switching of pattern reliably, and spacing accurate, can reduce again the length of stop gear, thereby reduce the volume of whole steering wheel arrangement, saves installing space.
in order to solve the problems of the technologies described above, the present invention adopts following technical proposals: the bidirectional hydraulic pump is fixedly mounted on the bottom of casing, the lower end of driving gear shaft is fixedly connected by the input shaft of coupler and bidirectional hydraulic pump, driving gear is fixedly mounted on driving gear shaft, driven gear shaft is arranged in the bearing seat on casing top by bearing, driven gear is fixedly mounted on driven gear shaft, driving gear and driven gear engaged transmission are installed, angular-motion transducer is fixedly mounted on the bottom of casing, the input shaft of angular-motion transducer is fixedly connected by the lower end of coupler and driven gear shaft, this device mainly comprises the finger dish, line slideway, stroke baffle, notch plate, the block supporting seat, from moving frame, cam, spring, positive stop, motor, slide block and finger, described line slideway is fixedly mounted on casing, described slide block is slidably connected on line slideway, the back side of described stroke baffle and notch plate is fixedly connected, described stroke baffle and slide block are fixedly connected, the downside of described stroke baffle is provided with a long recess, be symmetrical arranged a short groove in the length direction center of long recess again, the length direction center of the length direction center of described long recess and short groove is overlapping, described finger dish is fixedly connected on driving gear shaft, described finger is fixedly mounted on the finger dish, described finger dish coordinates installation with the notch plate transmission, in the process that the finger dish rotates, finger can enter and drive notch plate in the notch of notch plate and move, when finger withdraws from the notch of notch plate, the finger dish rotates but does not drive notch plate and moves, the face of cylinder of finger disc radial outer end suits mutually with the face of cylinder of notch plate makes notch plate location maintenance motionless, described block supporting seat is fixedly connected on the base plate of casing, described positive stop running-fit is arranged in the slideway of block supporting seat upper end, described positive stop is stairstepping, described spring is Compress Spring, described spring fitting is in the slideway of block supporting seat upper end, ring platform in the lower end of described spring and slideway contacts, the other end contacts with the cascaded surface of positive stop, described spring moves up positive stop to stretch out the slideway of block supporting seat upper end, describedly be fixedly connected in the lower end of positive stop from moving frame, described motor is fixedly connected on the block supporting seat, described cam is fixedly connected on the output shaft of motor, the outline of described cam with move with the touch from the moving frame bottom interior surface.
Described motor is steering gear electric-machine.The O-O line is an Installation Mark line that intersects vertically with the driving gear shaft axial line and be parallel to notch plate, a finger is arranged on described finger dish, during installation through the omnibearing line of the finger dish of finger axial line perpendicular to notch plate, and finger and notch plate the live apart both sides of O-O line.When bearing circle was in the position that vehicle can the straight-line travelling state, notch plate and stroke baffle were in initial position, and the center of the short groove length direction of described stroke baffle downside this moment is on the axial line of positive stop.Described positive stop upper end is rectangular shape, and the lower end is cylindrical shape, and it is the position of cylindrical shape that described spring housing is contained in the positive stop lower end.Described line slideway is that T-shaped line slideway can be also the square line slideway.
Employing the invention has the beneficial effects as follows, can realize well turning to when bearing circle at an arbitrary position the switching of pattern, and spacing accurate, can reduce the length of stop gear again, thereby reduce the volume of whole steering wheel arrangement, save installing space, good application value is arranged.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Description of drawings
Fig. 1 is the front view of motor vehicle steering wheel stop gear of the present invention;
Fig. 2 is the left view of motor vehicle steering wheel stop gear of the present invention;
Fig. 3 is the A-A cutaway view in Fig. 1.
In figure: casing 1 driving gear 2 finger dish 3 driving gear shaft 4 driven gear 5 driven gear shaft 6 line slideway 7 angular-motion transducer 8 stroke baffle 9 notch plate 10 block supporting seats 11 are from moving frame 12 bidirectional hydraulic pump 13 cam 14 spring 15 positive stop 16 motor 17 slide block 18 fingers 19
The specific embodiment
at Fig. 1, in Fig. 2 and Fig. 3, bidirectional hydraulic pump 13 is mounted by means of bolts on the bottom of casing 1, the lower end of driving gear shaft 4 is fixedly connected by the input shaft of coupler and bidirectional hydraulic pump 13, driving gear 2 is fixedly mounted on driving gear shaft 4 by key, driven gear shaft 6 is arranged in the bearing seat on casing 1 top by bearing, driven gear 5 is fixedly mounted on driven gear shaft 6 by key, driving gear 2 is installed with driven gear 5 engaged transmission, angular-motion transducer 8 is mounted by means of bolts on the bottom of casing 1, the input shaft of angular-motion transducer 8 is fixedly connected by the lower end of coupler and driven gear shaft 6, device is mainly by finger dish 3, line slideway 7, stroke baffle 9, notch plate 10, block supporting seat 11, from moving frame 12, cam 14, spring 15, positive stop 16, motor 17, slide block 18 and finger 19 form, described line slideway 7 is mounted by means of bolts on casing 1, described slide block 18 is slidably connected on line slideway 7, described stroke baffle 9 is bolted with the back side of notch plate 10 and connects, described stroke baffle 9 is bolted with slide block 18 and connects, the downside Milling Process of described stroke baffle 9 goes out a long recess, process a short groove in the length direction center of long recess symmetrical milling again, the length direction center of the length direction center of described long recess and short groove is overlapping, described finger dish 3 is fixedly connected on driving gear shaft 4 by key, described finger 19 is welded on finger dish 3, described finger dish 3 coordinates installation with notch plate 10 transmissions, in the process that finger dish 3 rotates, finger 19 can enter and drive notch plate 10 in the notch of notch plate 10 and move, when finger 19 withdraws from the notch of notch plate 10, finger dish 3 rotates but does not drive notch plate 10 and moves, the face of cylinder of finger dish 3 radial outer ends suits mutually with the face of cylinder of notch plate 10 makes notch plate 10 location maintenances motionless, described block supporting seat 11 is bolted on the base plate that is connected in casing 1, described positive stop 16 running-fits are arranged in the slideway of block supporting seat 11 upper ends, described positive stop 16 is stairstepping, described spring 15 is Compress Spring, described spring 15 is arranged in the slideway of block supporting seat 11 upper ends, ring platform in the lower end of described spring 15 and slideway contacts, the other end contacts with the cascaded surface of positive stop 16, described spring 15 moves up positive stop 16 to stretch out the slideway of block supporting seat 11 upper ends, the described lower end that is connected in positive stop 16 that is bolted from moving frame 12, described motor 17 is bolted and is connected on block supporting seat 11, described cam 14 is fixedly connected on the output shaft of motor 17 by key, the outline of described cam 14 with move with the touch from moving frame 12 bottom interior surfaces.
In addition, described motor 17 is steering gear electric-machine.Marking a line O-O and driving gear shaft 4 axial lines intersects vertically and is parallel to notch plate 10 as the Installation Mark line, a finger 19 is arranged on described finger dish 3, during installation through the omnibearing line of the finger dish 3 of finger 19 axial lines perpendicular to notch plate 10, and the both sides of finger 19 and notch plate 10 separation O-O lines.When bearing circle was in the position that vehicle can the straight-line travelling state, notch plate 10 and stroke baffle 9 were in initial position, and this moment, the center of the described stroke baffle 9 short groove length directions of downside was on the axial line of positive stop 16.Described positive stop 16 upper ends are rectangular shape, and the lower end is cylindrical shape, and it is the position of cylindrical shape that described spring 15 is sleeved on positive stop 16 lower ends.Described line slideway 7 is that T-shaped line slideway can be also the square line slideway.
Bearing circle drives driving gear 2 rotations on driving gear shaft 4, thereby make the driven gear 5 that is engaged with turn over certain angle, because the input shaft of angular-motion transducer 8 is fixedly connected by coupler and driven gear shaft 6, therefore angular-motion transducer 8 just can detect the anglec of rotation and the output electrical signals of driven gear 5, can obtain the rotational angle of bearing circle according to transmitting ratio.Other actuating unit of vehicle is completed turning to of vehicle according to this angle signal, and bidirectional hydraulic pump 13 is by providing road feel with coordinating of other control element for chaufeur.when Vehicular turn need to switch to when running at high speed pattern, motor 17 band moving cams 14 rotate, make the vertex of cam 14 be applied to from moving frame 12 bottom interior surfaces, thereby positive stop 16 is moved down overcome spring force to return in long recess on stroke baffle 9, restriction stroke baffle 9 moves in the scope of long recess, implementation pattern switches, when bearing circle is in the position that vehicle can the straight-line travelling state, bearing circle can rotate in cw or 900 ° of scopes of conter clockwise, when one direction is rotated 900 ° continuously, reach that the vehicle right side turns to entirely or left full steering position, make the finger dish 3 that is fixedly connected with driving gear shaft 4 turn over respective angles in the rotating of steering wheel process, drive with notch plate 10 and be bolted stroke baffle 9 intermittent movements that connect to end position, a side wall surface of the long recess on positive stop 16 and stroke baffle 9 contacts, restriction stroke baffle 9 continues mobile, bearing circle also can not continue to rotate forward, but can turn round by reversing sense, this moment, the sensitivity of bearing circle was low to guarantee the safety of high speed transition driving process.when Vehicular turn need to switch to the loading operation pattern, motor 17 band moving cams 14 rotate, make the nadir of cam 14 be applied to from moving frame 12 bottom interior surfaces, when if this moment, positive stop 16 was in the short groove scope of stroke baffle 9, effect lower limit block 16 at spring 15 stretches out, directly enter short groove, implementation pattern switches, if this moment, positive stop 16 was not in the short groove scope of stroke baffle 9, spring 15 makes positive stop 16 be pressed in the top of long recess, when the short groove at the effect down stroke baffle plate 9 of bearing circle arrives positive stop 16 position, spring 15 springs into short groove with positive stop 16, implementation pattern switches, at this moment, bearing circle can rotate in cw or 180 ° of scopes of conter clockwise, when one direction is rotated 180 ° continuously, reach that the vehicle right side turns to entirely or left full steering position, make the finger dish 3 that is fixedly connected with driving gear shaft 4 turn over respective angles in the rotating of steering wheel process, drive with notch plate 10 and be bolted stroke baffle 9 intermittent movements that connect to end position, a side wall surface of the short groove on positive stop 16 and stroke baffle 9 contacts, restriction stroke baffle 9 continues mobile, bearing circle also can not continue to rotate forward, but can turn round by reversing sense, this moment, the sensitivity of bearing circle was higher, can reduce the operation intensity that frequently turns in loading process, improve operating efficiency.
In the process of bearing circle continuous rotation, stroke baffle 9 is intermittent moments, can complete spacing work so only need the stroke baffle 9 of smaller length, reduced length dimension, thereby reduce the volume of whole steering wheel arrangement, save installing space, realize simultaneously turning to when bearing circle at an arbitrary position pattern to switch and accurate spacing purpose.
Claims (7)
1. motor vehicle steering wheel stop gear, bidirectional hydraulic pump (13) is fixedly mounted on the bottom of casing (1), the lower end of driving gear shaft (4) is fixedly connected by the input shaft of coupler and bidirectional hydraulic pump (13), driving gear (2) is fixedly mounted on driving gear shaft (4), driven gear shaft (6) is arranged in the bearing seat on casing (1) top by bearing, driven gear (5) is fixedly mounted on driven gear shaft (6), driving gear (2) is installed with driven gear (5) engaged transmission, angular-motion transducer (8) is fixedly mounted on the bottom of casing (1), the input shaft of angular-motion transducer (8) is fixedly connected by the lower end of coupler and driven gear shaft (6), it is characterized in that, mainly by finger dish (3), line slideway (7), stroke baffle (9), notch plate (10), block supporting seat (11), from moving frame (12), cam (14), spring (15), positive stop (16), motor (17), slide block (18) and finger (19) form, described line slideway (7) is fixedly mounted on casing (1), described slide block (18) is slidably connected on line slideway (7), described stroke baffle (9) is fixedly connected with the back side of notch plate (10), described stroke baffle (9) is fixedly connected with slide block (18), the downside of described stroke baffle (9) is provided with a long recess, be symmetrical arranged a short groove in the length direction center of long recess again, the length direction center of the length direction center of described long recess and short groove is overlapping, described finger dish (3) is fixedly connected on driving gear shaft (4), described finger (19) is fixedly mounted on finger dish (3), described finger dish (3) coordinates installation with notch plate (10) transmission, in the process that finger dish (3) rotates, finger (19) can enter notch interior drive notch plate (10) movement of notch plate (10), when finger (19) withdraws from the notch of notch plate (10), finger dish (3) rotates but does not drive notch plate (10) and moves, the face of cylinder of finger dish (3) radial outer end suits mutually with the face of cylinder of notch plate (10) makes notch plate (10) location maintenance motionless, described block supporting seat (11) is fixedly connected on the base plate of casing (1), described positive stop (16) running-fit is arranged in the slideway of block supporting seat (11) upper end, described positive stop (16) is stairstepping, described spring (15) is Compress Spring, described spring (15) is arranged in the slideway of block supporting seat (11) upper end, ring platform in the lower end of described spring (15) and slideway contacts, the other end contacts with the cascaded surface of positive stop (16), described spring (15) moves up positive stop (16) to stretch out the slideway of block supporting seat (11) upper end, describedly be fixedly connected in the lower end of positive stop (16) from moving frame (12), described motor (17) is fixedly connected on block supporting seat (11), described cam (14) is fixedly connected on the output shaft of motor (17), the outline of described cam (14) with move with the touch from moving frame (12) bottom interior surface.
2. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: described motor (17) is steering gear electric-machine.
3. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: the O-O line is an Installation Mark line that intersects vertically with driving gear shaft (4) axial line and be parallel to notch plate (10), be provided with a finger (19) on described finger dish (3), during installation through the omnibearing line of the finger dish (3) of finger (19) axial line perpendicular to notch plate (10), and the both sides of finger (19) and notch plate (10) separation O-O line.
4. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: when bearing circle is in the position that vehicle can the straight-line travelling state, notch plate (10) and stroke baffle (9) are in initial position, and the center of the short groove length direction of described stroke baffle (9) downside this moment is on the axial line of positive stop (16).
5. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: described positive stop (16) upper end is rectangular shape, the lower end is cylindrical shape, and it is the position of cylindrical shape that described spring (15) is sleeved on positive stop (16) lower end.
6. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: described line slideway (7) is T-shaped line slideway.
7. motor vehicle steering wheel stop gear according to claim 1, it is characterized in that: described line slideway (7) is the square line slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090520.1A CN103158755A (en) | 2013-03-07 | 2013-03-07 | Limiting mechanism for steering wheel of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090520.1A CN103158755A (en) | 2013-03-07 | 2013-03-07 | Limiting mechanism for steering wheel of motor vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN103158755A true CN103158755A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310090520.1A Pending CN103158755A (en) | 2013-03-07 | 2013-03-07 | Limiting mechanism for steering wheel of motor vehicle |
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| CN (1) | CN103158755A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767650A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of pair of zero-bit position limiting structure of remaining gear drive angular displacement sensor |
| CN108820040A (en) * | 2018-08-28 | 2018-11-16 | 青岛科技大学 | A kind of loading machine steer by wire apparatus |
| CN111845913A (en) * | 2019-04-25 | 2020-10-30 | 山东奔跑智能科技有限公司 | Steering gear rotating shaft flexible steering limiting mechanism for engineering machinery |
-
2013
- 2013-03-07 CN CN201310090520.1A patent/CN103158755A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767650A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of pair of zero-bit position limiting structure of remaining gear drive angular displacement sensor |
| CN108820040A (en) * | 2018-08-28 | 2018-11-16 | 青岛科技大学 | A kind of loading machine steer by wire apparatus |
| CN111845913A (en) * | 2019-04-25 | 2020-10-30 | 山东奔跑智能科技有限公司 | Steering gear rotating shaft flexible steering limiting mechanism for engineering machinery |
| CN111845913B (en) * | 2019-04-25 | 2023-02-24 | 山东奔跑智能科技有限公司 | Steering gear rotating shaft flexible steering limiting mechanism for engineering machinery |
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Application publication date: 20130619 |