CN103171612A - Steer-by-wire vehicle steering wheel limit mechanism - Google Patents
Steer-by-wire vehicle steering wheel limit mechanism Download PDFInfo
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- CN103171612A CN103171612A CN201310089182.XA CN201310089182A CN103171612A CN 103171612 A CN103171612 A CN 103171612A CN 201310089182 A CN201310089182 A CN 201310089182A CN 103171612 A CN103171612 A CN 103171612A
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- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
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Abstract
The invention discloses a steer-by-wire vehicle steering wheel limit mechanism and aims at achieving steering model switching and accurate limit of a steering wheel at any positions. A moving pin disc is connected with a driving gear shaft fixedly, a supporting seat is installed on the bottom portion of a box body fixedly, a geneva wheel shaft is installed inside a bearing seat of the supporting seat, a geneva wheel is installed fixedly on the geneva wheel shaft, the bottom portion of the geneva wheel is provided with a long ring-shaped groove, a short ring-shaped groove is installed inside the long ring-shaped groove, a moving pin is fixedly installed on the moving pin disc, the moving pin disc and the geneva wheel are installed in a transmission fit mode, a limiting stop block is installed inside a sliding passageway of the supporting seat in a movable fit mode, a spring is installed inside the sliding passageway of the supporting seat, a driven frame is connected with the lower end of the limiting stop block in a fixed mode, a motor is connected with the supporting seat fixedly, a cam is connected with an output shaft of the motor in a fixed mode, and an outer contour of the cam is contacted with the inner surface of the bottom portion of the driven frame in a movable fit mode. The mechanism can achieve the steering model switching and accurate limit of the steering wheel at any positions.
Description
Technical field
The present invention relates to a kind of stop gear, specifically a kind of steering-by-wire steering wheel for vehicle 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 steering-by-wire steering wheel for vehicle 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
Steering-by-wire steering wheel for vehicle stop gear provided by the invention, can realize reliably turning to when bearing circle is at an arbitrary position the switching of pattern, and spacing accurately, can reduce again the length of stop gear, thereby reduce the volume of whole steering wheel arrangement, save 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 mechanism mainly comprises sheave, the finger dish, finger, fluted roller shaft, supporting seat, spring, cam, from moving frame, positive stop and motor, described finger dish is fixedly connected on driving gear shaft, described supporting seat is fixedly mounted on the bottom of casing, described fluted roller shaft is arranged in the bearing seat of lower box by bearing, described sheave is fixedly mounted on fluted roller shaft, described sheave bottom along the circumferential direction is provided with a long recess, along the circumferential direction 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 identical, described finger is fixedly mounted on the finger dish, described finger dish coordinates installation with the sheave transmission, in the process that the finger dish rotates, finger can enter the radial slot drive sheave rotation of sheave, when finger withdraws from the radial slot of sheave, the finger dish rotates but does not drive sheave and rotates, the face of cylinder of finger disc radial outer end suits mutually with the face of cylinder of sheave makes sheave location maintenance motionless, described positive stop running-fit is arranged in the slideway of supporting seat upper end, described positive stop is stairstepping, described spring is Compress Spring, described spring fitting is in the slideway of 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, describedly be fixedly connected in the lower end of positive stop from moving frame, described motor is fixedly connected on 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 I-I line is a vertical Installation Mark line by driving gear shaft axial line and sheave axial line, the O-O line is a vertical driving gear shaft axial line that passes through, and the Installation Mark line perpendicular to the I-I line, a finger is arranged on described finger dish, during installation, the axial line of finger and I-I line intersect vertically, are parallel to the axial line of driving gear shaft (4), and finger and sheave separation O-O both sides.When bearing circle is in the position that vehicle can the straight-line travelling state, sheave and finger dish are in initial position, this moment, the short groove length direction of described sheave downside center was on the axial line of positive stop, and this moment, the axial line of finger occupy on the I-I line and finger and sheave the live apart both sides of O-O line.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 driving gear shaft axial line and sheave axis parallel are installed.
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 steering-by-wire steering wheel for vehicle stop gear of the present invention;
Fig. 2 is the A-A cutaway view in Fig. 1;
Fig. 3 is the B-B cutaway view in Fig. 1.
In figure: casing 1 driving gear 2 sheave 3 driving gear shaft 4 finger dish 5 driven gear 6 driven gear shaft 7 angular-motion transducer 8 finger 9 fluted roller shaft 10 supporting seat 11 spring 12 cam 13 bidirectional hydraulic pumps 14 are from moving frame 15 positive stop 16 motors 17
The specific embodiment
at Fig. 1, in Fig. 2 and Fig. 3, bidirectional hydraulic pump 14 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 14, driving gear 2 is fixedly mounted on driving gear shaft 4 by key, driven gear shaft 7 is arranged in the bearing seat on casing 1 top by bearing, driven gear 6 is fixedly mounted on driven gear shaft 7 by key, driving gear 2 is installed with driven gear 6 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 7, this mechanism is mainly by sheave 3, finger dish 5, finger 9, fluted roller shaft 10, supporting seat 11, spring 12, cam 13, from moving frame 15, positive stop 16 and motor 17 form, described finger dish 5 is fixedly connected on driving gear shaft 4 by key, described supporting seat 11 is mounted by means of bolts on the bottom of casing 1, described fluted roller shaft 10 is arranged in the bearing seat of casing 1 bottom by bearing, described sheave 3 is fixedly mounted on fluted roller shaft 10 by key, described sheave 3 bottoms along the circumferential direction are provided with a long recess, along the circumferential direction 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 identical, described finger 9 is welded on finger dish 5, described finger dish 5 coordinates installation with sheave 3 transmissions, in the process that finger dish 5 rotates, finger 9 can enter radial slot drive sheave 3 rotations of sheave 3, when finger 9 withdraws from the radial slot of sheave 3, finger dish 5 rotates but does not drive sheave 3 and rotates, the face of cylinder of finger dish 5 radial outer ends suits mutually with the face of cylinder of sheave 3 makes sheave 3 location maintenances motionless, described positive stop 16 running-fits are arranged in the slideway of supporting seat 11 upper ends, described positive stop 16 is stairstepping, described spring 12 is Compress Spring, described spring 12 is arranged in the slideway of supporting seat 11 upper ends, ring platform in the lower end of described spring 12 and slideway contacts, the other end contacts with the cascaded surface of positive stop 16, the described lower end that is connected in positive stop 16 that is bolted from moving frame 15, described motor 17 is bolted and is connected on supporting seat 11, described cam 13 is fixedly connected on the output shaft of motor 17 by key, the outline of described cam 13 with move with the touch from moving frame 15 bottom interior surfaces.
In addition, described motor 17 is steering gear electric-machine.Mark a vertical Installation Mark line I-I by driving gear shaft 4 axial lines and sheave 3 axial lines, mark again one vertical by driving gear shaft 4 axial lines and perpendicular to the Installation Mark line O-O of I-I line, be welded with a finger 9 on described finger dish 5, during installation, the axial line of finger 9 and I-I line intersect vertically, are parallel to the axial line of driving gear shaft 4, and the both sides of finger 9 and sheave 3 separation O-O lines.When bearing circle is in the position that vehicle can the straight-line travelling state, sheave 3 and finger dish 5 are in initial position, on the axial line of the positive stop 16 that the described sheave this moment 3 short groove length direction of downside centers are in, this moment, the axial line of finger 9 occupy on the I-I line and the both sides of finger 9 and sheave 3 separation O-O lines.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 12 is sleeved on positive stop 16 lower ends.Described driving gear shaft 4 axial lines and sheave 3 axis parallels are installed.
Bearing circle drives driving gear 2 rotations on driving gear shaft 4, thereby make the driven gear 6 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 6, 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 14 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 13 rotate, make the vertex of cam 13 be applied to from moving frame 15 bottom interior surfaces, thereby positive stop 16 is moved down overcome in the long recess that spring force returns to sheave 3 bottoms, restriction sheave 3 rotates 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 5 that is fixedly connected with driving gear shaft 4 turn over respective angles in the rotating of steering wheel process, drive sheave 3 intermittent rotaries to end position, positive stop 16 contacts with a side wall surface of the long recess of sheave 3 bottoms, restriction sheave 3 is rotated further, 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 13 rotate, make the nadir of cam 13 be applied to from moving frame 15 bottom interior surfaces, when if this moment, positive stop 16 was in the short groove scope of sheave 3 bottoms, effect lower limit block 16 at spring 12 stretches out, directly enter short groove, implementation pattern switches, if this moment, positive stop 16 was not in the short groove scope of sheave 3 bottoms, spring 12 makes positive stop 16 be pressed in the top of long recess, when the short groove of sheave 3 bottoms under the effect at bearing circle arrives positive stop 16 position, spring 12 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 5 that is fixedly connected with driving gear shaft 4 turn over respective angles in the rotating of steering wheel process, drive sheave 3 intermittent rotaries to end position, positive stop 16 contacts with a side wall surface of the short groove of sheave 3 bottoms, restriction sheave 3 is rotated further, 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, sheave 3 is intermittent moments, can complete spacing work so only need the sheave 3 of small diameter, 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 (6)
1. steering-by-wire steering wheel for vehicle stop gear, bidirectional hydraulic pump (14) 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 (14), driving gear (2) is fixedly mounted on driving gear shaft (4), driven gear shaft (7) is arranged in the bearing seat on casing (1) top by bearing, driven gear (6) is fixedly mounted on driven gear shaft (7), driving gear (2) is installed with driven gear (6) 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 (7), it is characterized in that, mainly by sheave (3), finger dish (5), finger (9), fluted roller shaft (10), supporting seat (11), spring (12), cam (13), from moving frame (15), positive stop (16) and motor (17) form, described finger dish (5) is fixedly connected on driving gear shaft (4), described supporting seat (11) is fixedly mounted on the bottom of casing (1), described fluted roller shaft (10) is arranged in the bearing seat of casing (1) bottom by bearing, described sheave (3) is fixedly mounted on fluted roller shaft (10), described sheave (3) bottom along the circumferential direction is provided with a long recess, along the circumferential direction 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 identical, described finger (9) is fixedly mounted on finger dish (5), described finger dish (5) coordinates installation with sheave (3) transmission, in the process that finger dish (5) rotates, finger (9) can enter radial slot drive sheave (3) rotation of sheave (3), when finger (9) withdraws from the radial slot of sheave (3), finger dish (5) rotates but does not drive sheave (3) and rotates, the face of cylinder of finger dish (5) radial outer end suits mutually with the face of cylinder of sheave (3) makes sheave (3) location maintenance motionless, described positive stop (16) running-fit is arranged in the slideway of supporting seat (11) upper end, described positive stop (16) is stairstepping, described spring (12) is Compress Spring, described spring (12) is arranged in the slideway of supporting seat (11) upper end, ring platform in the lower end of described spring (12) and slideway contacts, the other end contacts with the cascaded surface of positive stop (16), describedly be fixedly connected in the lower end of positive stop (16) from moving frame (15), described motor (17) is fixedly connected on supporting seat (11), described cam (13) is fixedly connected on the output shaft of motor (17), the outline of described cam (13) with move with the touch from moving frame (15) bottom interior surface.
2. steering-by-wire steering wheel for vehicle stop gear according to claim 1, it is characterized in that: described motor (17) is steering gear electric-machine.
3. steering-by-wire steering wheel for vehicle stop gear according to claim 1, it is characterized in that: the I-I line is a vertical Installation Mark line by driving gear shaft (4) axial line and sheave (3) axial line, the O-O line is vertical driving gear shaft (a 4) axial line that passes through, and the Installation Mark line perpendicular to the I-I line, a finger (9) is arranged on described finger dish (5), axial line and the I-I line of finger during installation (9) intersect vertically, the axial line that is parallel to driving gear shaft (4), and the both sides of finger (9) and sheave (3) separation O-O line.
4. steering-by-wire steering wheel for vehicle 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, sheave (3) and finger dish (5) are in initial position, this moment, the short groove length direction of described sheave (3) downside center was on the axial line of positive stop (16), and the axial line of finger this moment (9) occupy on the I-I line and the both sides of finger (9) and sheave (3) separation O-O line.
5. steering-by-wire steering wheel for vehicle 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 (12) is sleeved on positive stop (16) lower end.
6. steering-by-wire steering wheel for vehicle stop gear according to claim 1, is characterized in that: described driving gear shaft (4) axial line and the installation of sheave (3) axis parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089182.XA CN103171612A (en) | 2013-03-07 | 2013-03-07 | Steer-by-wire vehicle steering wheel limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089182.XA CN103171612A (en) | 2013-03-07 | 2013-03-07 | Steer-by-wire vehicle steering wheel limit mechanism |
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| Publication Number | Publication Date |
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| CN103171612A true CN103171612A (en) | 2013-06-26 |
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| CN201310089182.XA Pending CN103171612A (en) | 2013-03-07 | 2013-03-07 | Steer-by-wire vehicle steering wheel limit mechanism |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359164A (en) * | 2013-07-19 | 2013-10-23 | 青岛科技大学 | Steering wheel device for steer-by-wire vehicles |
| CN105775864A (en) * | 2014-12-24 | 2016-07-20 | 重庆鑫仕达包装设备有限公司 | Tension roller mechanism |
| CN107994430A (en) * | 2017-11-16 | 2018-05-04 | 中国第汽车股份有限公司 | A kind of automobile using clock spring |
| CN108820040A (en) * | 2018-08-28 | 2018-11-16 | 青岛科技大学 | A kind of loading machine steer by wire apparatus |
| CN109249984A (en) * | 2017-07-12 | 2019-01-22 | 现代自动车株式会社 | Transfer for wire-controlled steering system |
| CN111776056A (en) * | 2020-07-06 | 2020-10-16 | 苏州奥通汽车科技有限公司 | Steering wheel |
| DE102021209386A1 (en) | 2021-08-26 | 2023-03-02 | Zf Automotive Germany Gmbh | Steering device with an end stop device for limiting a steering angle and steer-by-wire steering system with such a steering device |
-
2013
- 2013-03-07 CN CN201310089182.XA patent/CN103171612A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359164A (en) * | 2013-07-19 | 2013-10-23 | 青岛科技大学 | Steering wheel device for steer-by-wire vehicles |
| CN103359164B (en) * | 2013-07-19 | 2015-09-30 | 青岛科技大学 | For the steering wheel arrangement of steering-by-wire vehicle |
| CN105775864A (en) * | 2014-12-24 | 2016-07-20 | 重庆鑫仕达包装设备有限公司 | Tension roller mechanism |
| CN105775864B (en) * | 2014-12-24 | 2023-06-23 | 重庆鑫仕达包装设备有限公司 | Tension roller mechanism |
| CN109249984A (en) * | 2017-07-12 | 2019-01-22 | 现代自动车株式会社 | Transfer for wire-controlled steering system |
| CN109249984B (en) * | 2017-07-12 | 2022-06-24 | 现代自动车株式会社 | Steering device for steer-by-wire system |
| CN107994430A (en) * | 2017-11-16 | 2018-05-04 | 中国第汽车股份有限公司 | A kind of automobile using clock spring |
| CN107994430B (en) * | 2017-11-16 | 2024-05-07 | 中国第一汽车股份有限公司 | Clock spring for automobile |
| CN108820040A (en) * | 2018-08-28 | 2018-11-16 | 青岛科技大学 | A kind of loading machine steer by wire apparatus |
| CN111776056A (en) * | 2020-07-06 | 2020-10-16 | 苏州奥通汽车科技有限公司 | Steering wheel |
| DE102021209386A1 (en) | 2021-08-26 | 2023-03-02 | Zf Automotive Germany Gmbh | Steering device with an end stop device for limiting a steering angle and steer-by-wire steering system with such a steering device |
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Application publication date: 20130626 |