CN210149413U - Rotary limiting steering system and automobile - Google Patents

Rotary limiting steering system and automobile Download PDF

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Publication number
CN210149413U
CN210149413U CN201920794298.6U CN201920794298U CN210149413U CN 210149413 U CN210149413 U CN 210149413U CN 201920794298 U CN201920794298 U CN 201920794298U CN 210149413 U CN210149413 U CN 210149413U
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Prior art keywords
steering
shaft
limiting
block
slide block
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CN201920794298.6U
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Chinese (zh)
Inventor
刘振勇
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ABOS automobile (Hangzhou) Co., Ltd
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Hangzhou Abos New Energy Automobile Technology Co Ltd
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Abstract

The utility model discloses a rotary limit steering system, a driver operates the direction to rotate, a steering wheel drives a steering shaft to rotate, a follower is arranged on the outer surface of the steering shaft, and the follower is driven to synchronously rotate when the steering shaft rotates; the follower is in matched transmission with the limiting sliding block, the follower rotates to drive the limiting sliding block to move in a translation mode, the rotation of the direction shaft is converted into the translation motion of the limiting sliding block through the follower, and the limiting sliding block moves towards different directions when the direction shaft rotates clockwise and anticlockwise; the limit stop block is arranged on the motion path of the limit slide block and stops the limit slide block at the maximum stroke position at the two ends of the limit slide block; the guide seat is in sliding contact with the limiting slide block, and the guide limiting slide block moves along a linear track to support the limiting slide block; when the steering wheel rotates clockwise, the limiting slide block is driven to move along one direction, the limiting slide block is contacted with the limiting stop block when moving to the limit position, the movement cannot be continued, the steering wheel cannot continue to rotate, and the limiting effect is achieved on the steering wheel.

Description

Rotary limiting steering system and automobile
Technical Field
The utility model relates to an automobile manufacturing technical field further relates to a rotatory spacing a steering system. Furthermore, the utility model discloses still relate to an automobile.
Background
The steering wheel is a steering control component for vehicle running, and for a common household car, wheels rotate to the extreme position from the right front to the left or the right, the steering wheel can rotate for 1.5-2 circles, and the steering wheel cannot rotate continuously after the extreme position is reached.
The traditional steering shaft of the steering wheel drives a transmission pull rod to control the steering of the wheels, and the steering wheel is limited by a limit transmission pull rod to rotate only in one direction for 1.5-2 circles; for a vehicle with an electronic control wheel steering function, a transmission pull rod is not arranged between a steering shaft and the wheel, the number of turns of the wheel can be larger than that of the traditional 1.5-2 turns, and the number of turns of the wheel in the direction cannot be limited.
For those skilled in the art, how to limit the number of turns in the direction is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotatory spacing a steering system rotates to the steering wheel and realizes spacingly, inject the rotation number of turns of direction, and concrete scheme is as follows:
a rotary limit steering system comprising:
the steering shaft is controlled to rotate through a steering wheel arranged at the top end, and a follower rotating synchronously with the steering shaft is arranged on the outer surface of the steering shaft;
the limiting sliding block is matched with the follower for transmission, and the follower rotates to drive the limiting sliding block to move in a translation manner;
the limit stop block is arranged on a motion path of the limit slide block and stops the limit slide block at the maximum travel positions at two ends;
and the guide seat is in sliding contact with the limiting slide block and guides the limiting slide block to move along a linear track.
Optionally, the follower is an external thread arranged on the outer surface of the direction shaft;
the limiting slide block is a threaded block sleeved on the direction shaft, an inner thread is arranged on the inner wall of the threaded block, and the inner thread is in threaded fit transmission with an outer thread on the outer surface of the direction shaft.
Optionally, the follower is a rotary gear fixed on the direction shaft;
the limiting sliding block is a rack block, and the rack block is in meshing transmission with the rotating gear.
Optionally, the steering mechanism further comprises a reset torsion spring sleeved on the steering shaft, the inner end of the reset torsion spring is fixed with the steering shaft, and the outer end of the reset torsion spring is fixed with the guide seat; the two reset torsion springs are symmetrically arranged.
Optionally, the guide holder includes a fixed part and a movable part, the fixed part and the movable part are connected to each other in a rotating manner, a telescopic cylinder is arranged between the fixed part and the movable part, and the telescopic cylinder adjusts the length to change the angle between the fixed part and the movable part.
Optionally, the steering device further comprises a steering driving device, a driving gear is arranged on an output shaft of the steering driving device, a driven gear is arranged on the direction shaft, and the driving gear and the driven gear are in meshing transmission.
Optionally, a corner gear is arranged on the direction shaft, and the corner gear is in meshing transmission with the angle encoder;
and determining the steering angle of the wheels according to the detection signal of the angle encoder.
Optionally, the middle of the corner gear is arranged in a penetrating manner, a cavity for installing a control cable is arranged inside the direction shaft along the length, and the control cable penetrates out of the through hole in the middle of the corner gear.
Optionally, two supports are arranged on the guide seat, and the direction shaft is rotatably connected with the supports through bearings; the limiting slide block and the limiting stop block are arranged between the two supports.
The utility model also provides an automobile, including above-mentioned arbitrary rotatory spacing a steering system.
The utility model provides a rotary limit steering system, a driver operates the direction to rotate, a steering wheel drives a steering shaft to rotate, a follower is arranged on the outer surface of the steering shaft, and the follower is driven to synchronously rotate when the steering shaft rotates; the follower is in matched transmission with the limiting sliding block, the follower rotates to drive the limiting sliding block to move in a translation mode, the rotation of the direction shaft is converted into the translation motion of the limiting sliding block through the follower, and the limiting sliding block moves towards different directions when the direction shaft rotates clockwise and anticlockwise; the limit stop block is arranged on the motion path of the limit slide block and stops the limit slide block at the maximum stroke position at the two ends of the limit slide block; the guide seat is in sliding contact with the limiting slide block, and the guide limiting slide block moves along a linear track to support the limiting slide block; when the steering wheel rotates clockwise, the limiting slide block is driven to move along one direction, the limiting slide block is contacted with the limiting stop block when moving to the limit position, the movement cannot be continued, the steering wheel cannot continue to rotate, and the limiting effect is achieved on the steering wheel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1A and fig. 1B are schematic axial views of two different angles above the first embodiment of the rotation-limited steering system of the present invention;
fig. 2A and fig. 2B are schematic axial views of a second embodiment of the rotation-limited steering system of the present invention at two different angles;
fig. 3 is the utility model discloses the axonometric drawing at rotatory spacing a steering system below visual angle.
The figure includes:
the device comprises a direction shaft 1, a rotating gear 11, a driven gear 12, a corner gear 13, a thread block 21, a rack block 22, a limit stop 3, a guide seat 4, a fixed part 401, a movable part 402, a support 41, a telescopic cylinder 42, a reset torsion spring 5, a steering driver 6, a driving gear 61 and an angle encoder 7.
Detailed Description
The core of the utility model lies in providing a rotatory spacing a steering system, it is spacing to rotate the realization of steering wheel, the number of turns of the rotation of injecing the direction.
In order to make those skilled in the art better understand the technical solution of the present invention, the rotation limit steering system and the vehicle of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a rotary limit steering system, which comprises a steering shaft 1, a limit slider, a limit stop 3, a guide seat 4 and other structures, wherein the top end of the steering shaft 1 is provided with a steering wheel, and a driver controls the steering wheel to rotate so as to lead the steering shaft 1 to synchronously rotate; the outer surface of the direction shaft 1 is provided with a follower which synchronously rotates with the direction shaft 1, the follower is relatively fixed with the direction shaft 1, and the steering wheel, the direction shaft 1 and the follower synchronously rotate.
The limiting sliding block is in matched transmission with the follower, the rotary motion of the follower is converted into the translation of the limiting sliding block, the follower rotates to drive the limiting sliding block to do translation motion along a linear track, and the follower can drive the limiting sliding block to do translation motion towards two opposite directions on the same path track when rotating clockwise and anticlockwise; the moving direction of the limiting slide block can be controlled by rotating the steering wheel.
The limit stop 3 is arranged on a motion path of the limit slide block, the limit stop 3 is arranged in two, the two ends of the motion path of the limit slide block are respectively located, the limit slide block is stopped at the maximum stroke positions of the two ends, once the limit slide block is in contact with the limit stop 3, the limit slide block cannot continue to move, the steering shaft 1 and the steering wheel cannot continue to rotate, the limiting effect is achieved, the position of the limit stop 3 is reasonably arranged, and the number of rotation turns of the steering wheel from the return state to the same direction is 1.5-2 turns.
The guide seat 4 is in sliding contact with the limiting slide block and provides limiting guide and support for the limiting slide block; the guide limiting slide block moves along a linear track, when the track of the guide seat 4 is a straight line, the motion path of the limiting slide block is a straight line, and the limiting slide block moves in a reciprocating mode along the straight line.
When the steering wheel rotates clockwise, the limiting slide block is driven to move along a certain direction, the limiting slide block is contacted with the limiting stop 3 when moving to the limiting position and cannot move continuously, the steering wheel and the steering shaft 1 cannot rotate continuously, the limiting is realized on the steering wheel, the steering wheel can only rotate to return in the opposite direction, and the rotation angle range of the wheels is limited; accordingly, when the direction is rotated counterclockwise, it can be stopped by the other limit stopper 3.
On the basis of the above scheme, the utility model provides two kinds of concrete arrangement forms here, and the main difference lies in the arrangement form of follower and spacing slider:
first, as shown in fig. 1A and fig. 1B, two axial measuring drawings of two different angles are respectively shown in the first embodiment of the rotation-limited steering system of the present invention; the follower is an external thread arranged on the outer surface of the direction shaft 1, the spiral direction of the external thread surrounds the central line of the direction shaft 1, and when the direction shaft 1 rotates, the external thread synchronously rotates.
The limiting slide block is a thread block 21 sleeved on the direction shaft 1, a through hole is formed in the thread block 21, an inner thread is arranged on the inner wall of the through hole, the direction shaft 1 can be inserted into the through hole in the thread block 21, and an outer thread on the direction shaft 1 can be in threaded fit with the inner thread in the thread block 21 to achieve a transmission effect.
The screw block 21 is limited by the guide seat 4, so that the screw block 21 cannot rotate and can only move under the guide of the guide seat 4; when the direction shaft 1 rotates, the screw block 21 is driven to translate, the translation direction of the screw block 21 is parallel to the length direction of the direction shaft 1, and the connecting line of the limit stop 3 is parallel to the length direction of the direction shaft 1.
Secondly, as shown in fig. 2A and fig. 2B, two axial measuring drawings of two different angles are respectively shown in the second embodiment of the rotation-limiting steering system of the present invention; the follower is a rotating gear 11 fixed on the direction shaft 1, and the rotating gear 11 is driven by the direction shaft 1 to rotate; the limiting sliding block is a rack block 22, one side surface of the rack block 22 is provided with meshing teeth, and the rack block 22 is in meshing transmission with the rotating gear 11.
When the guide rail of the guide seat 4 is along a straight line, the rack block 22 can move in a reciprocating way along the straight line; when the guide rail of the guide seat 4 is an arc, the rack block 22 can move back and forth along the arc; the structure shown in fig. 2A and 2B is an embodiment in which the rack block 22 reciprocates in a straight line.
The rotation-limiting steering system of the utility model also comprises a reset torsion spring 5 sleeved on the steering shaft 1, as shown in fig. 1A and fig. 2A, which is a relative relationship diagram of the steering shaft 1 and the reset torsion spring 5; the direction shaft 1 is inserted in the reset torsion spring 5, the inner end of the reset torsion spring 5 is fixed with the direction shaft 1, and the outer end is fixed with the guide seat 4; the reset torsion spring 5 is in a spiral linear structure, one end close to the circle center is an inner end, and the other end close to the circumference is an outer end.
When the steering shaft 1 rotates, the guide seat 4 is kept fixed, the reset torsion spring 5 is twisted, a driver operates the steering wheel to overcome the twisting force of the reset torsion spring 5 to realize steering, the more the number of rotation turns, the larger the twisting force accumulated by the reset torsion spring 5 is, and when the driver releases the steering wheel, the steering shaft 1 has the tendency of reverse rotation under the effect of the twisting force of the reset torsion spring 5, so that the steering wheel automatically returns to the right.
In order to make the atmosphere force larger, two reset torsion springs 5 are symmetrically arranged, and the two reset torsion springs 5 respectively generate torsion force when rotating clockwise and anticlockwise, so that the clockwise rotation and the anticlockwise rotation generate the same torsion force.
As shown in fig. 3, which is an isometric view of the front view angle of the rotation-limited steering system of the present invention, the guide base 4 of the present invention includes a fixed member 401 and a movable member 402, the fixed member 401 and the movable member 402 are rotatably connected to each other, the fixed member 401 is fixed on the vehicle body, the position is kept fixed, and the movable member 402 can rotate relative to the fixed member 401, so as to change the angle of the movable member 402; the telescopic cylinder 42 is arranged between the fixed piece 401 and the movable piece 402, one end of the telescopic cylinder 42 is hinged to the fixed piece 401, the other end of the telescopic cylinder 42 is hinged to the movable piece 402, the telescopic cylinder 42 can stretch and change the length of the telescopic cylinder 42, the movable piece 402 can be positioned at different angles relative to the fixed piece 401 due to different lengths of the telescopic cylinder 42, therefore, the telescopic cylinder 42 can change the angle between the fixed piece 401 and the movable piece 402 due to the adjustment of the length, the direction shaft 1 can be positioned at different angles, the direction of a steering wheel can be changed, and the adjustment and.
Preferably, the rotation-limiting steering system of the present invention further comprises a steering driving device 6, and the steering driving device 6 may adopt a servo motor or a stepping motor; a driving gear 61 is arranged on an output shaft of the steering driving device 6, and the steering driving device 6 drives the driving gear 61 to rotate; the steering shaft 1 is provided with a driven gear 12, and the driving gear 61 and the driven gear 12 are in mesh transmission, so that the steering shaft 1 is rotated by the rotation of the steering driving device 6, and the steering wheel can be operated instead of the driver.
The steering driving device 6 receives a control signal transmitted by a controller of the automobile and can accurately control steering and rotating angles; the steering wheel can be applied to an unmanned automobile or an unmanned mode, and the steering wheel can be rotated to provide steering instructions for people in the automobile instead of a driver.
Preferably, a corner gear 13 is arranged on the steering shaft 1, and the corner gear 13 is in meshing transmission with the angle encoder 7. The angle encoder 7 is used for detecting a rotation angle signal, and the steering angle of the wheels is determined according to the detection signal of the angle encoder 7. Each wheel is provided with an independent steering motor, the wheels are controlled to rotate independently through gear transmission, a detection signal of the angle encoder 7 corresponds to the rotation angle of the steering shaft 1, the corresponding proportion between the rotation angle of the steering shaft 1 and the rotation angle of the wheels can be set, and a fixed proportion is taken as an example for explanation, the unidirectional maximum rotation angle of the wheels is assumed to be set to be 90 degrees, the unidirectional maximum rotation angle of the steering wheel is set to be 1.5 circles and 540 degrees, namely, the rotation angle of the wheels is 1 degree every time the steering wheel rotates 6 degrees; if there is need, the wheel corner can also adopt the form that sets up of variable proportion with the steering wheel corner, and the corner of steering wheel is less, and the corner proportion that the wheel corresponds is less, and the steering wheel corner is big more, and the corner proportion that the wheel corresponds is big more, and these specific forms of setting all should be contained within the protection scope of the utility model
Preferably, the middle part of the corner gear 13 in the utility model is arranged in a through way, and the corner gear 13 is fixed at the bottom end of the direction shaft 1; the cavity that is used for installing the control cable is set up along length to the inside of direction axle 1, and the control cable is drawn forth from the steering wheel, lays along direction axle 1, and the control cable is worn out in the perforating hole at corner gear 13 middle part, and the integrated level of control cable is higher.
The guide seat 4 of the utility model is a supporting structure, the steering driving device 6 is fixedly arranged on the guide seat 4, and the angle encoder 7 is also fixedly arranged on the guide seat 4; two supports 41 are arranged on the guide seat 4, the supports 41 protrude out of the surface of the guide seat 4, bearings are arranged on the supports 41, the direction shaft 1 is rotatably connected with the supports 41 through the bearings, and the direction shaft 1 can rotate relative to the supports 41; the limit slider and the limit stop 3 are arranged between the two supports 41, and the torsion spring 5 is also arranged between the two supports 41.
The utility model provides a car, including foretell rotatory spacing a steering system, the same technological effect can be realized to this car, and prior art is please refer to other partial structures of car, the utility model discloses no longer describe herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A limited rotation steering system, comprising:
the steering wheel steering device comprises a steering shaft (1) and a steering wheel, wherein the steering shaft is controlled to rotate through the steering wheel arranged at the top end of the steering shaft, and a follower rotating synchronously with the steering shaft is arranged on the outer surface of the steering shaft (1);
the limiting sliding block is matched with the follower for transmission, and the follower rotates to drive the limiting sliding block to move in a translation manner;
the limit stop block (3) is arranged on a motion path of the limit slide block and stops the limit slide block at the maximum stroke positions at two ends;
and the guide seat (4) is in sliding contact with the limiting slide block and guides the limiting slide block to move along a linear track.
2. Rotary limit steering system according to claim 1, characterized in that the follower is an external thread provided on the outer surface of the steering shaft (1);
the limiting slide block is a thread block (21) sleeved on the direction shaft (1), an inner wall of the thread block (21) is provided with an inner thread, and the thread block is in threaded fit transmission with an outer thread on the outer surface of the direction shaft (1).
3. Rotary limit steering system according to claim 1, characterized in that the follower is a rotary gear (11) fixed to the steering shaft (1);
the limiting sliding block is a rack block (22), and the rack block (22) is in meshing transmission with the rotating gear (11).
4. The rotation-limiting steering system according to claim 2 or 3, further comprising a reset torsion spring (5) sleeved on the direction shaft (1), wherein the inner end of the reset torsion spring (5) is fixed with the direction shaft (1), and the outer end of the reset torsion spring is fixed with the guide seat (4); the two reset torsion springs (5) are symmetrically arranged.
5. The rotary limit steering system according to claim 4, characterized in that the guide base (4) comprises a fixed member (401) and a movable member (402), the fixed member (401) and the movable member (402) are rotatably connected with each other, a telescopic cylinder (42) is arranged between the fixed member (401) and the movable member (402), and the telescopic cylinder (42) is adjusted in length to change the angle between the fixed member (401) and the movable member (402).
6. The rotary limit steering system according to claim 4, further comprising a steering driving device (6), wherein a driving gear (61) is arranged on an output shaft of the steering driving device (6), a driven gear (12) is arranged on the direction shaft (1), and the driving gear (61) and the driven gear (12) are in meshing transmission.
7. The rotary limit steering system according to claim 4, characterized in that an angle gear (13) is arranged on the direction shaft (1), and the angle gear (13) is in meshed transmission with the angle encoder (7);
and determining the steering angle of the wheels according to the detection signal of the angle encoder (7).
8. The rotation-limited steering system according to claim 7, wherein the middle part of the corner gear (13) is arranged in a penetrating way, a cavity for installing a control cable is arranged in the direction shaft (1) along the length, and the control cable penetrates out of the through hole in the middle part of the corner gear (13).
9. The steering system according to claim 4, characterized in that two supports (41) are arranged on the guide base (4), and the steering shaft (1) is rotatably connected with the supports (41) through bearings; the limiting slide block and the limiting stop block (3) are arranged between the two supports (41).
10. An automobile comprising a slew-limited steering system as defined in any one of claims 1 to 9.
CN201920794298.6U 2019-05-29 2019-05-29 Rotary limiting steering system and automobile Active CN210149413U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920794298.6U CN210149413U (en) 2019-05-29 2019-05-29 Rotary limiting steering system and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920794298.6U CN210149413U (en) 2019-05-29 2019-05-29 Rotary limiting steering system and automobile

Publications (1)

Publication Number Publication Date
CN210149413U true CN210149413U (en) 2020-03-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920794298.6U Active CN210149413U (en) 2019-05-29 2019-05-29 Rotary limiting steering system and automobile

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CN (1) CN210149413U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110254502A (en) * 2019-05-29 2019-09-20 杭州阿博思新能源汽车科技有限公司 A kind of rotary stopper steering system and automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110254502A (en) * 2019-05-29 2019-09-20 杭州阿博思新能源汽车科技有限公司 A kind of rotary stopper steering system and automobile

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20201123

Address after: No.90, 2-4 / F, Haiju center, No.501, No.2 street, Baiyang street, Qiantang New District, Hangzhou City, Zhejiang Province

Patentee after: ABOS automobile (Hangzhou) Co., Ltd

Address before: Hangzhou City, Zhejiang province 310000 Yuhang District Chongxian town of Chong Chao Lu 189-6

Patentee before: HANGZHOU ABOSI NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right