CN114312971A - Steering gear on-off device, steering gear, steering system and vehicle - Google Patents
Steering gear on-off device, steering gear, steering system and vehicle Download PDFInfo
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- CN114312971A CN114312971A CN202011063108.7A CN202011063108A CN114312971A CN 114312971 A CN114312971 A CN 114312971A CN 202011063108 A CN202011063108 A CN 202011063108A CN 114312971 A CN114312971 A CN 114312971A
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Abstract
The invention relates to the technical field of vehicle steering, and discloses a steering gear on-off device, a steering gear, a steering system and a vehicle. The steering gear on-off device is used for a steering gear comprising a movable steering gear rack and a rotatable steering gear rack shaft; the steering gear on-off device comprises a driving unit and a supporting arm unit, wherein the supporting arm unit is used for driving a steering gear shaft to move, the driving unit can drive the supporting arm unit to move so as to switch between a coupling state enabling a steering gear rack and the steering gear shaft to be meshed and a decoupling state enabling the steering gear rack and the steering gear shaft to be separated. The steering gear on-off device can realize the on-off of the steering torque of the steering wheel of the vehicle after being assembled on the steering gear.
Description
Technical Field
The invention relates to the technical field of vehicle steering, in particular to a steering gear on-off device, a steering gear, a steering system and a vehicle.
Background
A steering column of a vehicle is used to transmit a steering force of a vehicle steering wheel to a steering gear of the vehicle to control a traveling direction of the vehicle.
In the modern society, vehicles are more and more widely used, and people have more and more long time to use the vehicles. Therefore, the development of a game device which is convenient to use on the vehicle has great economic value.
Disclosure of Invention
An object of the present invention is to provide a steering gear on-off device capable of turning on and off steering torque of a steering wheel of a vehicle after being assembled to a steering gear.
In order to achieve the above object, the present invention provides a steering gear on-off device for a steering gear including a movable steering gear rack and a rotatable steering gear pinion; the steering gear on-off device comprises a driving unit and a supporting arm unit, wherein the supporting arm unit is used for driving a steering gear shaft to move, the driving unit can drive the supporting arm unit to move so as to switch between a coupling state enabling a steering gear rack and the steering gear shaft to be meshed and a decoupling state enabling the steering gear rack and the steering gear shaft to be separated.
In the technical scheme, the supporting arm unit is used for driving the steering gear shaft to move, so that after the steering gear on-off device is assembled on a steering gear, the supporting arm unit can drive the steering gear shaft to move, wherein the driving unit can drive the supporting arm unit to move to a coupling state, a steering rack is meshed with the steering gear shaft in the coupling state, so that steering torque transmitted to the steering gear shaft by a steering column is converted into movement of the steering rack to drive wheels to steer, when the driving unit can drive the supporting arm unit to move to a decoupling state, the steering rack is separated from the steering gear shaft, at the moment, the steering gear shaft idles on the mounting portion, and therefore the steering torque transmitted to the steering gear shaft by the steering column cannot be transmitted to the steering gear rack. Therefore, in a decoupling state, even if the steering wheel rotates, the steering torque cannot be transmitted to the wheels, the wheels are still, and abrasion of the wheels is avoided.
Further, the driving unit can also drive the supporting arm unit to move so as to adjust the meshing gap between the steering rack and the steering gear shaft.
Further, the driving unit can record an initial coupling position of the supporting arm unit in the coupling state, and the driving unit can drive the supporting arm unit to return to the initial coupling position when driving the supporting arm unit to be converted from the decoupling state to the coupling state.
In addition, the trailing arm unit includes a mounting portion for allowing the steering gear shaft to be rotatably mounted.
Further, the trailing arm unit includes a movement guide portion for movably engaging with a steering gear housing of a steering gear.
Furthermore, the trailing arm unit includes the trailing arm casing, the trailing arm casing includes the installation department, the trailing arm casing is including being used for stretching into the portion of stretching into in the steering gear casing, be formed with on the outer peripheral face of the portion of stretching into and remove the guide plane in order to conduct remove the guide part.
Furthermore, the bracket shell comprises an accommodating cavity for the steering gear shaft to extend into, two opposite cavity end walls of the accommodating cavity are respectively used as the mounting parts, and an opening for allowing the tooth part of the steering gear shaft to be meshed with the steering gear rack is formed in the cavity side wall of the accommodating cavity.
Further, the movement guide plane is formed on an outer peripheral surface of at least one of the chamber end walls.
Optionally, the drive unit comprises a drive motor and a controller, wherein the controller is capable of registering an initial rotation angle of the drive motor in the coupled state and, upon transition from the decoupled state to the coupled state, the controller is capable of controlling the drive motor to return to the initial rotation angle.
Optionally, the drive unit comprises a controller, a hydraulic cylinder and a first elastic member, wherein the controller is capable of registering an initial position of a piston rod of the hydraulic cylinder in the coupled state, and upon transition from the decoupled state to the coupled state, the controller is capable of controlling the return of the hydraulic cylinder to the initial position; and/or the first elastic piece can drive the bracket arm unit to return to the initial coupling position.
Optionally, the driving unit comprises an electromagnetic device and a second elastic element, wherein the electromagnetic device can drive the supporting arm unit to be switched from the coupling state to the decoupling state, and the second elastic element can drive the supporting arm unit to return to the initial coupling position.
Further, the present application provides a steering gear including the steering gear on-off device described in any of the above, a steering gear housing, a movable steering gear rack, and a steering gear pinion that protrudes from the steering gear housing and is rotatable, wherein the trailing arm unit is capable of driving the steering gear pinion to move to switch between the coupled state in which the steering gear rack and the steering gear pinion are engaged and the decoupled state in which the steering gear rack and the steering gear pinion are disengaged.
As mentioned above, the steering gear can realize the on-off of the steering torque of the vehicle steering wheel, so that the steering column has a game function in a decoupling state, and the entertainment of the vehicle is improved.
Furthermore, a strip-shaped hole extending in the moving direction of the supporting arm unit is formed in the steering gear shell, and the steering gear shaft penetrates out of the strip-shaped hole.
Further, the present application provides a steering system comprising a steering column and the steering gear of any of the above, wherein the steering gear shaft and the steering column are in power transmitting connection.
As the steering gear can realize the on-off of the steering torque of the steering wheel of the vehicle, the steering column has a game function in a decoupling state, and the entertainment of the vehicle is improved.
Further, the steering column comprises a rotation angle sensor and a column power-assisted motor, the rotation angle sensor can record the initial angular position of a rotating mandrel of the steering column in the coupling state, and the column power-assisted motor can drive the rotating mandrel to return to the initial angular position when the decoupling state is converted into the coupling state.
Further, the steering column is provided with a hand feeling simulation unit, wherein in the decoupled state, the hand feeling simulation unit can provide damping to the steering column to provide steering simulation hand feeling.
Finally, the present application provides a vehicle provided with a steering system as described in any of the above. Thus, as described above, the entertainment and overall quality of the vehicle are improved.
Drawings
Fig. 1 is a schematic structural view of a steering gear according to an embodiment of the present invention, in which the structure of a steering gear on-off device according to an embodiment of the present invention is shown;
FIG. 2 is an enlarged view of a portion of FIG. 1, with the diverter housing of the diverter omitted for clarity;
FIG. 3 is a schematic view of a drive unit and a steering gear shaft in a steering gear on-off device according to an embodiment of the present invention;
fig. 4 is a schematic view of another driving unit and a steering gear shaft in a steering gear on-off device according to an embodiment of the present invention.
Description of the reference numerals
1-a steering rack, 2-a steering gear shaft, 3-a steering gear, 4-a drive unit, 5-a trailing arm unit, 6-a steering gear housing, 7-a trailing arm housing, 8-a movement guide plane, 9-a cavity end wall, 10-a toothed part, 11-an open mouth, 12-a drive motor, 13-a hydraulic cylinder, 14-a first elastic part, 15-an electromagnetic device, 16-a second elastic part, 17-a slotted hole, 18-a helical gear rack shaft, 19-a drive gear shaft.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1 and 2, the steering gear on-off device provided by the present invention is applied to a steering gear 3, and the steering gear 3 includes a movable steering gear rack 1 and a rotatable steering gear pinion 2. The steering gear on-off device comprises a driving unit 4 and a supporting arm unit 5, wherein the supporting arm unit 5 is used for driving the steering gear shaft 2 to move, the driving unit 4 can drive the supporting arm unit 5 to move so as to switch between a coupling state enabling the steering gear rack 1 and the steering gear shaft 2 to be meshed and a decoupling state enabling the steering gear rack 1 and the steering gear shaft 2 to be disengaged.
The supporting arm unit is used for driving the steering gear shaft to move, so that after the steering gear on-off device is assembled on a steering gear, the supporting arm unit can drive the steering gear shaft to move, wherein the driving unit can drive the supporting arm unit to move to a coupling state, a steering gear rack is meshed with the steering gear shaft in the coupling state, so that the steering torque transmitted to the steering gear shaft by a steering column is converted into the movement of the steering gear rack to drive wheels to steer, when the driving unit can drive the supporting arm unit to move to a decoupling state, the steering gear rack is separated from the steering gear shaft, at the moment, the steering gear shaft idles on the mounting portion, and therefore the steering torque transmitted to the steering gear shaft by the steering column cannot be transmitted to the steering gear rack. Therefore, in a decoupling state, even if the steering wheel rotates, the steering torque cannot be transmitted to the wheels, the wheels are still, and abrasion of the wheels is avoided.
In addition, in actual use, after a certain degree of use, there is wear between the steering rack 1 and the steering pinion 2 of the steering gear 3, and therefore, the drive unit 4 can also drive the trailing arm unit 5 to move for adjusting the meshing gap between the steering rack 1 and the steering pinion 2. Thus, when the abrasion reaches a certain degree, the driving unit 4 drives the supporting arm unit 5 to move, and the steering gear shaft 2 can be rotatably arranged on the mounting part, so that the meshing gap between the steering gear rack 1 and the steering gear shaft 2 can be eliminated, and the stability of the vehicle after the running durability is ensured.
In addition, in order to enable the lifting of the steering gear shaft 2 to be better engaged with the steering rack 1 when switching from the decoupled state to the coupled state, the drive unit 4 can register an initial coupling position of the trailing arm unit 5 in the coupled state, and the drive unit 4 can drive the trailing arm unit 5 to return to the initial coupling position when driving the trailing arm unit 5 to switch from the decoupled state to the coupled state. Thus, a good initial coupling state between the steering rack 1 and the steering pinion 2 can be achieved.
In addition, referring to fig. 2, the trailing arm unit 5 includes a mounting portion for allowing the steering gear shaft 2 to be rotatably mounted. Thus, when the steering gear opening/closing device is assembled to the steering gear, the steering gear shaft 2 of the steering gear is rotatably mounted on the mounting portion.
In addition, in order to facilitate guiding the movement of the bracket arm unit 5 so as to be able to more stably guide the movement of the steering gear shaft 2 between the decoupled state and the coupled state, the bracket arm unit 5 includes a movement guide for movably engaging with the steering gear housing 6 of the steering gear. In this way, in actual use, the movement guide and the diverter housing 6 will make a guiding movement, making the movement of the trailing arm unit 5 smoother.
For example, in an embodiment, referring to fig. 2, the holder arm unit 5 includes a holder arm housing 7, the holder arm housing 7 includes a mounting portion on which the steering gear spindle 2 is rotatably mounted, and the holder arm housing 7 includes an extending portion for extending into the steering gear housing 6, and a movement guide plane 8 is formed on an outer peripheral surface of the extending portion as a movement guide portion. Like this, stretch into in the steering gear casing 6, at this moment, steering gear casing 6 has certain holding location and removal guide effect to stretching into the portion, and the removal guide plane 8 that forms on the outer peripheral face of stretching into portion then can form plane sliding contact with the corresponding plane on the internal surface of steering gear casing 6 in order to play the removal guide effect, like this, through dual removal guide effect, can promote the stationarity that trailing arm unit 5 removed effectively to make steering gear tooth axle 2 can more steadily mesh with steering gear rack 1 and break away from.
Further, referring to fig. 2, the trailing arm housing 7 includes a housing chamber into which the steering gear shaft 2 projects, and opposite chamber end walls 9 of the housing chamber serve as mounting portions, respectively, so that the steering gear shaft 2 can be rotatably supported on the two chamber end walls 9, respectively, for example, by bearings or bushings, while the chamber side walls of the housing chamber are formed with open openings 11 for allowing engagement of the toothed portion 10 of the steering gear shaft 2 and the steering rack 1. Of course, the shape and size of the opening 11 can be selected according to actual requirements, and for example, the opening can be a rectangular opening.
In addition, the movement guide plane 8 may be formed at any position of the outer circumferential surface of the protruding portion. In one embodiment, referring to fig. 1 and 2, at least one of the chamber end walls 9 has a movement guide plane 8 formed on its outer peripheral surface. Since at least one of the chamber end walls 9 can project into the diverter housing 6, the chamber end wall 9 can thus be utilized to form the movement guide plane 8 for planar sliding contact with a corresponding plane on the inner surface of the diverter housing 6 for movement guidance.
In addition, in the steering on-off device, the driving unit 4 may have various types. For example, in one embodiment of the drive unit 4, referring to fig. 2, the drive unit 4 comprises a drive motor 12 and a controller, wherein the controller is capable of recording an initial rotation angle of the drive motor 12 in the coupled state and, upon transition from the decoupled state to the coupled state, the controller is capable of controlling the drive motor to return to the initial rotation angle. Of course, the drive motor 12 and the controller may be separate components, or the drive motor 12 and the controller may be integrated together to form a drive control motor.
In addition, referring to fig. 2, the driving gear shaft 19 is connected to the driving motor 12, the bracket shell 7 includes a rack shaft 18 with helical teeth, the driving gear shaft 19 is engaged with the rack shaft 18 with helical teeth, and the driving gear shaft 19 is driven by the driving motor to rotate forward and backward, so that the rack shaft 18 with helical teeth can be driven to move back and forth. Or the driving motor 12 is connected with a driving screw, the bracket shell 7 comprises a driving block, and a driving screw hole on the driving block is matched with the driving screw, so that the driving motor drives the driving screw to rotate forwards and backwards, and the driving block can be driven to move back and forth.
In addition, the controller can realize the intelligent adjustment of the meshing clearance between the steering gear rack 1 and the steering gear shaft 2, before the supporting arm unit 5 needs to move to decouple, the controller can record the corresponding starting torque of the driving motor 12, through data accumulation, the change of the steering torque transmission between the steering gear rack 1 and the steering gear shaft 2 can be monitored in real time, when the abrasion reaches a certain degree, the controller can control the driving motor 12 to drive the supporting arm unit 5 to move so as to automatically compensate the reduced starting torque, therefore, the meshing clearance between the steering gear rack 1 and the steering gear shaft 2 is eliminated by controlling the starting torque of the driving motor 12, and the stability of the vehicle after long-term running is ensured.
In another embodiment of the drive unit 4, referring to fig. 3, the drive unit 4 comprises a controller, a hydraulic cylinder 13 and a first elastic member 14, wherein the controller is capable of registering an initial position of a piston rod of the hydraulic cylinder 13 in the coupled state and controlling the hydraulic cylinder 13 to return to the initial position when switching from the decoupled state to the coupled state; and/or the first elastic member 14 can drive the trailing arm unit 5 to return to the initial coupling position. In such an embodiment, the elastic force of the first elastic member 14 and the driving force of the hydraulic cylinder 13 can achieve good engagement between the steering rack 1 and the steering pinion 2 to ensure stability after the vehicle has been driven for a long time.
In a further embodiment of the drive unit 4, referring to fig. 4, the drive unit 4 comprises an electromagnetic device 15 and a second elastic element 16, wherein the electromagnetic device 15 is capable of driving the bracket unit 5 to switch from the coupling state to the decoupling state, and the second elastic element 16 is capable of driving the bracket unit 5 to return to the initial coupling position. For example, when the electromagnetic device 15 is powered on, the plunger of the electromagnetic device 15 will drive the steering gear shaft 2 to disengage from the steering gear rack 1 to be in the decoupling state, and when the electromagnetic device 15 is powered off, the return elastic force of the second elastic member 16 will drive the steering gear shaft 2 to engage with the steering gear rack 1 to be in the coupling state. And the elastic force of the second elastic member 16 can realize good meshing between the steering rack 1 and the steering pinion 2 to ensure the stability of the vehicle after the vehicle runs for a long time.
The shape and number of the first elastic member 14 and the second elastic member 16 can be selected according to actual requirements, and the application is not particularly limited.
In addition, the present application provides a steering gear, which includes the steering gear on-off device described in any of the above, a steering gear housing 6, a movable steering gear rack 1, and a steering gear pinion 2 that protrudes from the steering gear housing 6 and is rotatable, with reference to fig. 1, wherein the trailing arm unit 5 is capable of driving the steering gear pinion 2 to move to switch between a coupling state in which the steering gear rack 1 and the steering gear pinion 2 are engaged and a decoupling state in which the steering gear rack 1 and the steering gear pinion 2 are disengaged. As mentioned above, the steering gear can realize the on-off of the steering torque of the vehicle steering wheel, so that the steering column has a game function in a decoupling state, and the entertainment of the vehicle is improved.
In the steering gear, in one embodiment, the steering gear shaft 2 is rotatably provided on a moving block, the moving block is movably provided on the steering gear housing 6, and the trailing arm unit 5 is connected to the moving block. Alternatively, in another embodiment, the steering gear shaft 2 is rotatably provided on the mounting portion of the bracket arm unit 5.
In addition, referring to fig. 2, a strip-shaped hole 17 extending in the moving direction of the trailing arm unit 5 is formed in the steering housing 6, and the steering pinion 2 is passed through the strip-shaped hole 17. In this way, the strip-shaped hole 17 can limit the travel of the steering gear shaft 2, while the strip-shaped hole 17 can also allow a larger range of movement of the steering gear shaft 2.
Furthermore, the present application provides a steering system comprising a steering column and a steering gear 3 as described in any of the above, wherein the steering gear shaft 2 is in power transmitting connection with the steering column. As the steering gear can realize the on-off of the steering torque of the steering wheel of the vehicle, the steering column has a game function in a decoupling state, and the entertainment of the vehicle is improved.
In addition, the steering column comprises a corner sensor and a column power-assisted motor, the corner sensor can record the initial angular position of a rotating mandrel of the steering column in a coupling state, and the column power-assisted motor can drive the rotating mandrel to return to the initial angular position when the decoupling state is converted into the coupling state. Like this, through corner sensor and tubular column helping hand motor, when being converted to the coupling state from the decoupling state, can be through rotating the dabber so that the steering wheel return to the initial state before the decoupling for the user has better driving experience.
Furthermore, the steering column is provided with a hand feel simulation unit, wherein, in the decoupled state, the hand feel simulation unit is capable of providing damping to the steering column to provide a steering simulation hand feel. Therefore, the steering column can play a game function through the hand feeling simulation unit, and the user comfort is improved.
Of course, the feel simulation unit can be of various types, for example, the feel simulation unit can include a feel simulation motor in power transmitting connection with the upper and/or middle section mandrels of the steering column, in the coupled position the feel simulation motor is not activated, in the decoupled position the feel simulation motor is activated to provide damping to provide steering simulation feel, if desired. Or, the hand feeling simulation unit may include a torsion spring sleeved on the upper section mandrel and/or the middle section mandrel of the steering column, and at the coupling position, when the upper section mandrel and the middle section mandrel rotate, the torsion spring provides a reverse return elastic force, but the reverse return elastic force may be offset by the power-assisted motor, so that the driver can normally rotate the steering wheel, and at the decoupling position, when the upper section mandrel and the middle section mandrel rotate, the torsion spring provides the reverse return elastic force to provide damping, so as to provide the steering simulation hand feeling.
For example, in actual use, in one embodiment, the user selects to enter a game mode through the control unit of the vehicle, a game mode entering signal is transmitted to the controller of the steering gear and the controller of the steering column, the controller of the steering gear records the initial angle of the driving motor, the controller of the steering column records the initial angular position of the rotating mandrel (the initial angular position of the steering wheel), after the correct recording, the driving unit 4 drives the bracket arm unit 5 to move the steering gear shaft 2 to disengage from the steering gear rack 1 to convert to a decoupling state, at which time, the user can use the steering wheel to play a game such as a racing game by the steering simulation hand provided by the hand feeling simulation unit. At this time, the steering torque provided by the steering wheel cannot be transmitted to the wheels, and wheel wear is avoided.
After the game is finished, a user selects a clutch game mode through a control unit of the vehicle, a clutch game mode signal is transmitted to a controller of a steering column to control a rotating mandrel (steering wheel) to return to an initial angle position correctly, then the controller of the steering controls a driving motor to drive a supporting arm unit 5 to drive a steering gear shaft 2 to move to be meshed with a steering gear rack 1, and when the driving motor returns to the initial angle, the meshing is finished. At this time, the user can operate the steering wheel normally to drive the wheels to turn.
Finally, the present application provides a vehicle provided with a steering system as described in any of the above. Thus, as described above, the entertainment and overall quality of the vehicle are improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (17)
1. A steering gear on-off device, characterized in that it is used for a steering gear (3) comprising a movable steering gear rack (1) and a rotatable steering gear pinion (2);
the steering gear on-off device comprises a driving unit (4) and a supporting arm unit (5), wherein the supporting arm unit (5) is used for driving a steering gear shaft (2) to move,
the driving unit (4) can drive the supporting arm unit (5) to move so as to switch between a coupling state enabling the steering gear rack (1) to be meshed with the steering gear shaft (2) and a decoupling state enabling the steering gear rack (1) to be disengaged from the steering gear shaft (2).
2. The steering on-off device according to claim 1, characterized in that the drive unit (4) is also capable of driving the trailing arm unit (5) to move for adjusting the meshing gap between the steering rack (1) and the steering pinion (2).
3. The steering on-off device according to claim 1, characterized in that the drive unit (4) is capable of registering an initial coupling position of the trailing arm unit (5) in the coupled state, the drive unit (4) being capable of driving the trailing arm unit (5) back to the initial coupling position when driving the trailing arm unit (5) from the decoupled state to the coupled state.
4. The steering on-off device according to claim 1, characterized in that the trailing arm unit (5) includes a mounting portion for allowing the steering gear shaft (2) to be rotatably mounted.
5. The diverter on-off device according to claim 4, characterized in that the trailing arm unit (5) comprises a movement guide for moving engagement with a diverter housing (6) of a diverter.
6. The steering gear on-off device according to claim 5, characterized in that the trailing arm unit (5) includes a trailing arm housing (7), the trailing arm housing (7) includes the mounting portion, the trailing arm housing (7) includes an insertion portion for inserting into the steering gear housing (6), and a movement guide plane (8) is formed on an outer peripheral surface of the insertion portion as the movement guide portion.
7. The steering gear on-off device according to claim 6, wherein the bracket housing (7) includes a receiving chamber for the steering gear shaft (2) to project into, two opposite chamber end walls (9) of the receiving chamber respectively serving as the mounting portions, and a chamber side wall of the receiving chamber is formed with an open opening (11) for allowing the engagement of the toothed portion (10) of the steering gear shaft (2) and the steering gear rack (1).
8. The diverter on-off device according to claim 7, characterized in that the displacement guide plane (8) is formed on the outer circumference of at least one of the chamber end walls (9).
9. Steering gear on-off device according to any one of claims 1 to 8, characterized in that the drive unit (4) comprises a drive motor (12) and a controller, wherein the controller is able to register an initial rotation angle of the drive motor (12) in the coupled state and, upon a transition from the decoupled state to the coupled state, is able to control the return of the drive motor to the initial rotation angle.
10. Steering gear on-off device according to any one of claims 1 to 8, characterized in that the drive unit (4) comprises a controller, a hydraulic cylinder (13) and a first spring (14), wherein the controller is able to register an initial position of a piston rod of the hydraulic cylinder (13) in the coupled state and, upon switching from the decoupled state to the coupled state, is able to control the return of the hydraulic cylinder (13) to the initial position; and/or the first elastic piece (14) can drive the bracket arm unit (5) to return to the initial coupling position.
11. Steering gear on-off device according to any of claims 1 to 8, characterized in that the drive unit (4) comprises an electromagnetic device (15) and a second spring (16), wherein the electromagnetic device (15) is capable of driving the trailing arm unit (5) from the coupled state to the decoupled state and the second spring (16) is capable of driving the trailing arm unit (5) back to an initial coupled position.
12. A steering gear, comprising a steering gear on-off device according to any one of claims 1 to 11, a steering gear housing (6), a movable steering gear rack (1) and a steering gear pinion (2) which protrudes from the steering gear housing (6) and can be rotated,
the trailing arm unit (5) is capable of driving the steering gear shaft (2) to move to switch between the coupling state, in which the steering rack (1) and the steering gear shaft (2) are engaged, and the decoupling state, in which the steering rack (1) and the steering gear shaft (2) are disengaged.
13. The steering gear according to claim 12, characterized in that a strip-shaped hole (17) extending in the direction of movement of the trailing arm unit (5) is formed in the steering gear housing (6), through which hole (17) the steering gear pinion (2) passes.
14. A steering system, characterized by comprising a steering column and a steering gear (3) according to claim 12 or 13, wherein the steering gear shaft (2) and the steering column are in power transmission connection.
15. The steering system of claim 14, wherein the steering column includes a rotational angle sensor and a column assist motor, the rotational angle sensor being configured to record an initial angular position of a rotating spindle of the steering column in the coupled state, the column assist motor being configured to drive the rotating spindle back to the initial angular position upon transition from the decoupled state to the coupled state.
16. A steering system according to claim 14 or 15, wherein the steering column is provided with a feel simulating unit, wherein in the decoupled state the feel simulating unit is capable of providing damping to the steering column to provide a steering simulating feel.
17. A vehicle, characterized in that the vehicle is provided with a steering system according to any one of claims 14-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063108.7A CN114312971B (en) | 2020-09-30 | 2020-09-30 | Steering gear on-off device, steering gear, steering system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063108.7A CN114312971B (en) | 2020-09-30 | 2020-09-30 | Steering gear on-off device, steering gear, steering system and vehicle |
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| CN114312971A true CN114312971A (en) | 2022-04-12 |
| CN114312971B CN114312971B (en) | 2023-04-07 |
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| CN202011063108.7A Active CN114312971B (en) | 2020-09-30 | 2020-09-30 | Steering gear on-off device, steering gear, steering system and vehicle |
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|---|---|---|---|---|
| DE102006049473A1 (en) * | 2006-10-16 | 2008-04-17 | Ife Systems Gmbh | Steering forces simulating device for vehicle simulator, has gear wheel located above gear rack such that wheel is connected with linear drive, and step-up gear unit moved by rotation of steering wheel over shaft |
| CN101177147A (en) * | 2007-11-23 | 2008-05-14 | 浙江大学 | Electric turning booster system |
| CN101229819A (en) * | 2008-02-28 | 2008-07-30 | 吉林大学 | Wire-controlled steering system for automobiles |
| CN201457465U (en) * | 2009-06-01 | 2010-05-12 | 浙江飞神车业有限公司 | Handle type mechanical steering mechanism |
| DE102014006469B3 (en) * | 2014-05-06 | 2015-07-02 | Thyssenkrupp Presta Ag | Bearing for a ball screw |
| WO2017086013A1 (en) * | 2015-11-18 | 2017-05-26 | Ｋｙｂ株式会社 | Power steering device and steering device with same |
| CN207225491U (en) * | 2017-09-01 | 2018-04-13 | 衡阳泰豪通信车辆有限公司 | A kind of driving mechanism of mobilizable shelter |
| CN208021540U (en) * | 2018-04-03 | 2018-10-30 | 新乡市广达机械制造有限公司 | One kind being used for garbage removing cart steering wheel structure |
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| CN114312971B (en) | 2023-04-07 |
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