CN203111297U - Vehicle driven-by-wire steering mode switching limiting device - Google Patents
Vehicle driven-by-wire steering mode switching limiting device Download PDFInfo
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- CN203111297U CN203111297U CN201320123663.3U CN201320123663U CN203111297U CN 203111297 U CN203111297 U CN 203111297U CN 201320123663 U CN201320123663 U CN 201320123663U CN 203111297 U CN203111297 U CN 203111297U
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- fixedly connected
- line
- positive stop
- supporting seat
- tooth bar
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- 230000000670 limiting effect Effects 0.000 title abstract description 8
- 230000036961 partial effect Effects 0.000 claims description 30
- 230000002401 inhibitory effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 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
- 230000002829 reductive effect Effects 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
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a vehicle driven-by-wire steering mode switching limiting device. When a steering wheel is placed at any position, steering mode switching and accurate limiting can be achieved. A linear guide rail is fixedly arranged on a box body, a sliding block is connected on the linear guide rail in a sliding mode, an incomplete rack and the sliding block are respectively and fixedly connected on two sides of a stroke baffle, a long groove is arranged in the lower side of the stroke baffle, a short groove is arranged inside the long groove, an incomplete gear is fixedly connected on a driving gear shaft and is meshed with the incomplete rack, a stopping block supporting seat is fixedly connected on a bottom plate of the box body, a limiting stopping block is mounted inside a sliding channel at the upper end of the stopping block supporting seat in a dynamic matching mode, a spring is arranged inside the sliding channel of the stopping block supporting seat, a driven frame is fixedly connected at the lower end of the limiting stopping block, a motor is fixedly connected on the stopping block supporting seat, a cam is fixedly connected on an output shaft of the motor, and the outer contour of the cam is contacted with the inner surface of the bottom of the driven frame in a dynamic matching mode. The vehicle driven-by-wire steering mode switching limiting device can achieve steering mode switching and accurate limiting when the steering wheel is placed at any position.
Description
Technical field
The utility model relates to a kind of inhibiting device, and specifically a kind of vehicle steering-by-wire pattern is switched inhibiting device.
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 travel direction as requested neatly.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 to turn to enough big etc. the technical requirementss of reliable and stable, operation light and flexible, steering power, and in engineering truck, exist in original steering swivel system sensitivity unadjustable, do not have 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 control steering swivel system replaces traditional machinery or hydraulic pressure to connect by microelectronic technique.Owing to cancelled the mechanical connection between bearing circle and the 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, by data line signal is passed to micro-control unit MCU on the car then, the comprehensive relevant signal of MCU is made judgement, send the instruction of control Vehicular turn, MCU detects angle signal and the given instruction comparison that vehicle turns over then, constitute closed loop feedback control, realize stable, the performance-oriented handling maneuver of safety.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 °, folk prescription is during to 900 ° of continuous rotations, just reach the position that the vehicle right side turns to entirely or a left side turns to entirely, when the low speed loading operation, bearing circle cw or the scope that rotates counterclockwise are 180 °, folk prescription is during to 180 ° of continuous rotations, just reach the position that the vehicle right side turns to entirely or a left side turns to entirely, it is spacing to have mechanical device to carry out when bearing circle forwards end position to.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 that bearing circle rotates is big, so the size of tooth bar and required working space will be very big, yet the space of operator's compartment base plate is limited, 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, has lacked practicality.
Therefore design a kind of vehicle steering-by-wire pattern and switch inhibiting device 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
The vehicle steering-by-wire pattern that the utility model provides is switched inhibiting device, can realize turning to when bearing circle is at an arbitrary position the switching of pattern reliably, and spacing accurately, can reduce the length of position limiting structure again, thereby reduce the volume of whole steering wheel arrangement, save installing space.
In order to solve the problems of the technologies described above, the utility model 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 the driving gear shaft, driven gear shaft is installed in the bearing seat on casing top by bearing, driven gear is fixedly mounted on the 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 partial gear, line slideway, stroke baffle, incomplete tooth bar, the block supporting seat, driven, cam, spring, positive stop, motor and slide block, described line slideway is fixedly mounted on the casing, described slide block is slidingly connected on line slideway, described stroke baffle is fixedly connected with the back side of incomplete tooth bar, described stroke baffle and slide block are fixedly connected, the downside of described stroke baffle is provided with a long recess, cut away short groove of part formation of long recess entity again in the length direction center of long recess symmetry, the length direction center of described long recess is identical with the length direction center of short groove, described partial gear is fixedly connected on driving gear shaft, described partial gear and not exclusively tooth bar engaged transmission installation, described block supporting seat is fixedly connected on the base plate of casing, described positive stop running-fit is installed in the slideway of block supporting seat upper end, described positive stop is stairstepping, described spring is installed in the slideway of block supporting seat upper end, ring platform in the lower end of described spring and the slideway contacts, the other end contacts with the ladder end face of positive stop, described spring is the compression spring, described driven is fixedly connected in the lower end of positive stop, described motor is fixedly connected on the block supporting seat, described cam is fixedly connected on the output shaft of motor, and the outline of described cam and driven bottom interior surface move with the touch.
Described motor is steering gear electric-machine.Described partial gear can be made of two sections orthodonts that are symmetrically distributed, and when bearing circle was in the position that vehicle can the straight-line travelling state, the one section orthodont that makes partial gear and incomplete tooth bar were in and begin to enter position engaged and cooperate installation.Described partial gear also can be made of one section orthodont, the O-O line is the installation markings of the incomplete tooth bar that intersects vertically with the partial gear axial line and be parallel to, when bearing circle is in the position that vehicle can the straight-line travelling state, the omnibearing line at process partial gear orthodont segment length direction center is perpendicular to the O-O line, and the both sides of partial gear orthodont section and incomplete tooth bar separation O-O line.When bearing circle was in the position that vehicle can the straight-line travelling state, not exclusively tooth bar 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 described spring housing is contained in the cylindrical shape position, lower end of positive stop.Described line slideway is that T type line slideway also can be the square line slideway.
The employing the beneficial effects of the utility model are, can realize turning to when bearing circle is at an arbitrary position the switching of pattern well, and spacing accurately, can reduce the length of stop gear again, thereby reduce the volume of whole steering wheel arrangement, save installing space, the excellent popularization using value is arranged.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the front view that vehicle steering-by-wire pattern described in the utility model is switched inhibiting device;
Fig. 2 is the left view that vehicle steering-by-wire pattern described in the utility model is switched inhibiting device;
Fig. 3 is the A-A cutaway view of first embodiment among Fig. 1;
Fig. 4 is the A-A cutaway view of second embodiment among Fig. 1.
Among the figure: 12 driven 13 cams of casing 1 driving gear 2 partial gears, 3 driving gear shaft 4 driven gears, 5 driven gear shaft 6 line slideways, 7 angular-motion transducer 8 stroke baffles, 9 incomplete tooth bar 10 block supporting seats 11 bidirectional hydraulic pumps, 14 springs, 15 positive stops, 16 motors, 17 slide blocks 18
The specific embodiment
In Fig. 1 and Fig. 2, bidirectional hydraulic pump 12 is installed in the bottom of casing 1 by bolt, the lower end of driving gear shaft 4 is fixedly connected by the input shaft of coupler and bidirectional hydraulic pump 12, driving gear 2 is fixedly mounted on the driving gear shaft 4 by key, driven gear shaft 6 is installed in the bearing seat on casing 1 top by bearing, driven gear 5 is fixedly mounted on the driven gear shaft 6 by key, driving gear 2 is installed with driven gear 5 engaged transmission, angular-motion transducer 8 is installed in the bottom of casing 1 by bolt, the input shaft of angular-motion transducer 8 is fixedly connected by the lower end of coupler and driven gear shaft 6, this device is mainly by partial gear 3, line slideway 7, stroke baffle 9, incomplete tooth bar 10, block supporting seat 11, driven 13, cam 14, spring 15, positive stop 16, motor 17 and slide block 18 are formed, described line slideway 7 is installed on the casing 1 by bolt, described slide block 18 is slidingly connected on line slideway 7, described stroke baffle 9 connects by bolt with the back side of incomplete tooth bar 10, described stroke baffle 9 and slide block 18 connect by bolt, the downside Milling Process of described stroke baffle 9 goes out a long recess, machine away short groove of part formation of long recess entity again in the length direction center of long recess symmetrical milling, the length direction center of described long recess is identical with the length direction center of short groove, described partial gear 3 is fixedly connected on driving gear shaft 4 by key, described partial gear 3 and not exclusively tooth bar 10 engaged transmission installation, described block supporting seat 11 is connected on the base plate of casing 1 by bolt, described positive stop 16 running-fits are installed in the slideway of block supporting seat 11 upper ends, described positive stop 16 is stairstepping, described spring 15 is installed in the slideway of block supporting seat 11 upper ends, ring platform in the lower end of described spring 15 and the slideway contacts, the other end contacts with the ladder end face of positive stop 16, described spring 15 is the compression spring, described driven 13 lower end that is connected in positive stop 16 by bolt, described motor 17 is connected on the block supporting seat 11 by bolt, described cam 14 is fixedly connected on the output shaft of motor 17 by key, and the outline of described cam 14 and driven 13 bottom interior surfaces move with the touch.
In addition, described motor 17 is steering gear electric-machine.When bearing circle was in the position that vehicle can the straight-line travelling state, not exclusively tooth bar 10 and stroke baffle 9 were in initial position, and the center of the short groove length direction of described stroke baffle 9 downsides this moment is 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 described spring 15 is sleeved on the cylindrical shape position, lower end of positive stop 16.Described line slideway 7 is that T type line slideway also can be the square line slideway.
In first embodiment shown in Figure 3, described partial gear 3 is made of two sections orthodonts that are symmetrically distributed, when bearing circle is in the position that vehicle can the straight-line travelling state, one section orthodont of partial gear 3 and incomplete tooth bar 10 are in begin to enter position engaged to cooperate installation.In second embodiment shown in Figure 4, described partial gear 3 is made of one section orthodont, mark the installation markings O-O of the incomplete tooth bar 10 that intersects vertically with partial gear 3 axial lines and be parallel to, when bearing circle is in the position that vehicle can the straight-line travelling state, the omnibearing line at process partial gear 3 orthodont segment length direction centers is perpendicular to the O-O line, and the both sides of partial gear 3 orthodont sections and incomplete tooth bar 10 separation O-O lines.
Bearing circle drives driving gear 2 rotations on the 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, so angular-motion transducer 8 just can detect the anglec of rotation of driven gear 5 and export electric signal, can obtain the rotational angle of bearing circle according to transmitting ratio.Other actuating unit of vehicle is finished turning to of vehicle according to this angle signal, and bidirectional hydraulic pump 12 is by providing road feel with cooperating for chaufeur of other control element.When Vehicular turn need switch to when running at high speed pattern, motor 17 drives cam 14 and rotates, make the vertex of cam 14 be applied on driven 13 bottom interior surfaces, thereby positive stop 16 is moved down overcome spring force to return in the long recess on the stroke baffle 9, restriction stroke baffle 9 is mobile 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, folk prescription is during to 900 ° of continuous rotations, reach that the vehicle right side turns to entirely or the full steering position in a left side, the feasible partial gear 3 that is fixedly connected with driving gear shaft 4 turns over respective angles in the rotation process, partial gear 3 is intermittently mobile with the stroke baffle 9 that not exclusively tooth bar 10 engaged transmission drive and incomplete tooth bar 10 is fixedly connected, when reaching 900 ° of end positions, a side wall surface of the long recess on positive stop 16 and the stroke baffle 9 contacts, restriction stroke baffle 9 continues mobile, bearing circle also can not continue to rotate forward, but can reversing sense revolution, this moment bearing circle the low safety with the driving process that guarantees to cut at a high speed of sensitivity.When Vehicular turn need switch to loading pattern, motor 17 drives cam 14 and rotates, make the nadir of cam 14 be applied on driven 13 bottom interior surfaces, 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 positions, 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, folk prescription is during to 180 ° of continuous rotations, reach that the vehicle right side turns to entirely or the full steering position in a left side, make stroke baffle 9 reach the limit of the position, a side wall surface of the short groove on positive stop 16 and the 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, and this moment, the sensitivity of bearing circle was higher, can reduce the operation intensity that frequently turns in the loading process, improve operating efficiency.
In the process that bearing circle rotates continuously, stroke baffle 9 is intermittent moments, can finish spacing work so only need less stroke baffle 9, reduced length dimension, thereby reduce the volume of whole steering wheel arrangement, save installing space, realize turning to when bearing circle at an arbitrary position pattern to switch and accurate spacing purpose simultaneously.
Claims (8)
1. a vehicle steering-by-wire pattern is switched inhibiting device, bidirectional hydraulic pump (12) 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 (12), driving gear (2) is fixedly mounted on the driving gear shaft (4), driven gear shaft (6) is installed in the bearing seat on casing (1) top by bearing, driven gear (5) is fixedly mounted on the 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 partial gear (3), line slideway (7), stroke baffle (9), incomplete tooth bar (10), block supporting seat (11), driven (13), cam (14), spring (15), positive stop (16), motor (17) and slide block (18) are formed, described line slideway (7) is fixedly mounted on the casing (1), described slide block (18) is slidingly connected on line slideway (7), described stroke baffle (9) is fixedly connected with the back side of incomplete tooth bar (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, cut away short groove of part formation of long recess entity again in the length direction center of long recess symmetry, the length direction center of described long recess is identical with the length direction center of short groove, described partial gear (3) is fixedly connected on driving gear shaft (4), described partial gear (3) and not exclusively tooth bar (10) engaged transmission installation, described block supporting seat (11) is fixedly connected on the base plate of casing (1), described positive stop (16) running-fit is installed in the slideway of block supporting seat (11) upper end, described positive stop (16) is stairstepping, described spring (15) is installed in the slideway of block supporting seat (11) upper end, ring platform in the lower end of described spring (15) and the slideway contacts, the other end contacts with the ladder end face of positive stop (16), described spring (15) is the compression spring, described driven (13) are fixedly connected in the lower end of positive stop (16), described motor (17) is fixedly connected on block supporting seat (11), described cam (14) is fixedly connected on the output shaft of motor (17), and the outline of described cam (14) and driven (13) bottom interior surface move with the touch.
2. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, and it is characterized in that: described motor (17) is steering gear electric-machine.
3. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, it is characterized in that: described partial gear (3) is made of two sections orthodonts that are symmetrically distributed, when bearing circle is in the position that vehicle can the straight-line travelling state, one section orthodont of partial gear (3) and incomplete tooth bar (10) are in begin to enter position engaged to cooperate installation.
4. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, it is characterized in that: described partial gear (3) is made of one section orthodont, the O-O line is the installation markings of the incomplete tooth bar (10) that intersects vertically with partial gear (3) axial line and be parallel to, when bearing circle is in the position that vehicle can the straight-line travelling state, the omnibearing line at process partial gear (3) orthodont segment length direction center is perpendicular to the O-O line, and the both sides of partial gear (3) orthodont section and incomplete tooth bar (10) separation O-O line.
5. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, it is characterized in that: when bearing circle is in the position that vehicle can the straight-line travelling state, not exclusively tooth bar (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).
6. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, it is characterized in that: described positive stop (16) upper end is rectangular shape, the lower end is cylindrical shape, and described spring (15) is sleeved on the cylindrical shape position, lower end of positive stop (16).
7. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, and it is characterized in that: described line slideway (7) is T type line slideway.
8. vehicle steering-by-wire pattern according to claim 1 is switched inhibiting device, and it is characterized in that: described line slideway (7) is the square line slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320123663.3U CN203111297U (en) | 2013-03-07 | 2013-03-07 | Vehicle driven-by-wire steering mode switching limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320123663.3U CN203111297U (en) | 2013-03-07 | 2013-03-07 | Vehicle driven-by-wire steering mode switching limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203111297U true CN203111297U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320123663.3U Expired - Fee Related CN203111297U (en) | 2013-03-07 | 2013-03-07 | Vehicle driven-by-wire steering mode switching limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203111297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171613A (en) * | 2013-03-07 | 2013-06-26 | 青岛科技大学 | Vehicle steer-by-wire mode switching limit device |
| CN110155160A (en) * | 2019-04-30 | 2019-08-23 | 丰疆智能科技股份有限公司 | Transfer for tractor |
| CN114132376A (en) * | 2021-11-29 | 2022-03-04 | 华人运通(江苏)技术有限公司 | Steering and correcting system |
-
2013
- 2013-03-07 CN CN201320123663.3U patent/CN203111297U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171613A (en) * | 2013-03-07 | 2013-06-26 | 青岛科技大学 | Vehicle steer-by-wire mode switching limit device |
| CN110155160A (en) * | 2019-04-30 | 2019-08-23 | 丰疆智能科技股份有限公司 | Transfer for tractor |
| CN114132376A (en) * | 2021-11-29 | 2022-03-04 | 华人运通(江苏)技术有限公司 | Steering and correcting system |
| CN114132376B (en) * | 2021-11-29 | 2023-06-13 | 华人运通(江苏)技术有限公司 | Steering return system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140307 |