CN213354603U - Vehicle steering system - Google Patents
Vehicle steering system Download PDFInfo
- Publication number
- CN213354603U CN213354603U CN202022250053.2U CN202022250053U CN213354603U CN 213354603 U CN213354603 U CN 213354603U CN 202022250053 U CN202022250053 U CN 202022250053U CN 213354603 U CN213354603 U CN 213354603U
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- China
- Prior art keywords
- steering
- rack
- gear
- vehicle
- fine adjustment
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Abstract
The utility model provides a vehicle steering system, including the inner connector of steering wheel, steering column, gear drive subassembly, fine setting part and steering linkage, the steering wheel transmission is connected the steering column, the gear drive subassembly includes steering gear and steering rack, steering gear sets up in the bottom of steering column, steering gear meshing connects the steering rack, fine setting part is the straight line fine setting hydro-cylinder, and the straight line fine setting hydro-cylinder sets up in the both ends of steering rack; the inner connecting piece is connected with a piston rod of the linear fine adjustment oil cylinder; the steering rack is a straight rack; adopt the utility model provides a vehicle steering system not only compensates when turning to, when displacement makes the directional emergence of tire change about the tire takes place, can also revise the tire deflection angle, reaches the effect that improves whole car stability.
Description
Technical Field
The utility model relates to a steering system particularly, relates to a vehicle steering system.
Background
The traditional steering mechanism is developed based on an ackermann steering theory, but the theory is only an ideal state when a vehicle is steered, and a rolling and sliding state exists when the vehicle is actually steered. The error caused by the steering trapezia can aggravate the abrasion of the steering wheel, increase the steering resistance, cause the sideslip of the vehicle and influence the driving stability and the driving comfort. Even if the automobile meets all-angle ackerman theory numerical value, the front wheel of the automobile has a toe angle, a caster angle and a caster angle of a king pin, so that the automobile tire is changed in angle under a three-dimensional space when turning, and the automobile is accompanied with gravity center shift when turning, so that the automobile suspension can make relative displacement in the vertical direction relative to the automobile body, and at the moment, the tire turning angle of the automobile is more difficult to meet the ideal ackerman theory, especially the requirement of the operation stability on high-speed working conditions and special and complex roads.
At present, some foreign researches realize pure rolling of an automobile by adding a sliding pair and a control module on a steering rocker arm, some foreign researches realize the pure rolling purpose by adding a sliding pair and a control module on a steering tie rod, and some foreign researches realize the purpose by changing the shape of an automobile steering rack. However, with respect to the curved rack technique, the curved steering rack has technical problems in manufacturing, and the curvature of the curve is difficult to calculate; for the method for carrying out motor fine adjustment on the outer point of the steering pull rod, the fine adjustment motor is placed in the wheel core very unstably because the inner space structure of the wheel core is complex and the space is limited, and the technical defect exists.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a vehicle steering system not only compensates when turning to, when displacement makes the directional emergence change of tire about the tire takes place, can also revise the tire deflection angle, reaches the effect that improves whole car stability.
The utility model provides a vehicle steering system, including the inner connector of steering wheel, steering column, gear drive subassembly, fine setting part and steering linkage, the steering wheel transmission is connected the steering column, the gear drive subassembly includes steering gear and steering rack, steering gear sets up in the bottom of steering column, steering gear meshing connects the steering rack, fine setting part is the straight line fine setting hydro-cylinder, and the straight line fine setting hydro-cylinder sets up in the both ends of steering rack; the inner connecting piece is connected with a piston rod of the linear fine adjustment oil cylinder; the steering rack is a straight rack.
Further, a piston rod of the linear fine adjustment oil cylinder faces the outer sides of two ends of the steering rack.
Further, the steering wheel and the steering column are in transmission connection through a universal joint.
Further, the side of the inner connecting piece is U-shaped.
Further, the opposite sides of the inner link are provided with attachment holes for the tie rods.
Furthermore, an oil inlet and an oil outlet are arranged on the linear fine adjustment oil cylinder, the oil inlet is located on the outer side of the oil outlet, and the oil inlet and the oil outlet are respectively connected with an oil inlet path and an oil outlet path.
Further, the steering column is connected with the steering gear through a pin shaft.
Further, the transmission teeth of the spur rack are located in the middle of the spur rack.
The utility model provides a vehicle steering system, which mainly comprises a steering wheel, a steering column, a gear transmission assembly, a fine adjustment component and an inner connecting piece of a steering pull rod, wherein the inner connecting piece is an inner connecting piece used for connecting the steering pull rod and the fine adjustment component; the steering wheel is in transmission connection with the top of the steering column, the bottom of the steering column is connected with the gear transmission assembly, the gear transmission assembly comprises a steering rack and a steering gear which are meshed with each other, the steering column is connected with the steering gear, and the fine adjustment component is arranged between the steering rack and the inner connecting piece; the steering gear is driven to rotate by a driver when the steering wheel is rotated, the rotation of the steering gear is converted into the transverse displacement of the steering rack through the gear-rack kinematic pair, before the transverse displacement is transmitted to the inner connecting piece by the steering rack, the transverse displacement passes through the linear fine adjustment oil cylinder, and the linear fine adjustment oil cylinder is used for fine adjusting (compensating) the transverse displacement of the steering rack, so that the steering deflection angle of the front wheel is always in the optimal Ackerman angle, and the tire is in a pure rolling state, thereby prolonging the service life of the tire and improving the stability of the whole vehicle.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a perspective view of a vehicle steering system according to an embodiment of the present invention;
fig. 2 is a front view of a vehicle steering system according to an embodiment of the present invention;
fig. 3 is a side view of a vehicle steering system according to an embodiment of the present invention;
fig. 4 is a top view of a vehicle steering system according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment is as follows:
referring to fig. 1-4, a vehicle steering system provided by a first embodiment of the present invention is shown, which includes a steering wheel 1, a steering column 2, a gear transmission assembly, a fine adjustment component 3 and an inner connection component 4 of a steering pull rod, wherein the steering wheel 1 is connected to the steering column in a transmission manner, the gear transmission assembly includes a steering gear 51 and a steering rack 52, the steering gear 51 is disposed at the bottom of the steering column 2, the steering gear 51 is engaged with the steering rack 52, the fine adjustment component 3 is a linear fine adjustment cylinder, and the linear fine adjustment cylinders are disposed at two ends of the steering rack 52; the inner connecting piece 4 is connected with a piston rod 31 of the linear fine adjustment oil cylinder; the steering rack 52 is a spur rack. Wherein, the piston rod 31 of the linear fine tuning cylinder is arranged towards the outer sides of the two ends of the steering rack 52; the steering wheel 1 and the steering column 2 are in driving connection by means of a universal joint 6. The two ends of an original rack and pinion steering gear are respectively and additionally provided with independent hydraulic control devices, a traditional purely mechanical steering system is integrated into an electromechanical-hydraulic integrated control system, the hydraulic control devices are independently controlled through respective control units, the two hydraulic control devices push respective steering push-pull rods to directly transmit steering force to a steering knuckle arm, the steering wheel 1 or a suspension is adjusted by a driver to displace in the vertical direction, the control devices calculate and maintain the optimal angle according to the positions of wheels and the rotation angle of the steering wheel, and the optimal Ackermann steering angle can be met no matter under any working condition of the steering angle of the front wheels of an automobile.
The vehicle steering system provided by the embodiment mainly comprises a steering wheel 1, a steering column 2, a gear transmission assembly, a fine adjustment component 3 and an inner connecting piece 4 of a steering pull rod, wherein the inner connecting piece 4 is an inner side connecting piece for connecting the steering pull rod and the fine adjustment component 3; the steering wheel 1 is in transmission connection with the top of a steering column 2, the bottom of the steering column 2 is connected with a gear transmission assembly, the gear transmission assembly comprises a steering rack 52 and a steering gear 51 which are meshed with each other, the steering column 2 is connected with the steering gear 51, and the fine adjustment component 3 is arranged between the steering rack 52 and the inner connecting piece 4; when a driver rotates a steering wheel 1, the steering gear 51 is driven to rotate, the rotation of the steering gear 51 is converted into the transverse displacement of a steering rack through a gear-rack kinematic pair, before the transverse displacement is transmitted to an inner connecting piece 4 by the steering rack 52, the transverse displacement passes through a linear fine adjustment oil cylinder, and the linear fine adjustment oil cylinder is used for fine adjustment compensation of the transverse displacement of the steering rack 52, so that the steering deflection angle of a front wheel is always in the optimal Ackerman angle, and a tire is in a pure rolling state, thereby prolonging the service life of the tire and improving the stability of the whole vehicle.
Example two:
referring to fig. 1 and fig. 4, a vehicle steering system provided by a second embodiment of the present invention is shown in the drawings, and the present embodiment further makes the following technical solutions as improvements on the basis of the above embodiment: the side surface of the inner connecting piece 4 is U-shaped; the inner link 4 is provided at opposite sides thereof with coupling holes 41 for tie rods.
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: the steering rod is convenient to connect with a steering rod of a vehicle, and fine adjustment is convenient to carry out.
Example three:
referring to fig. 1-4, a vehicle steering system provided by a third embodiment of the present invention is shown, and on the basis of the above embodiment, the present embodiment further provides the following technical solutions as improvements: the linear fine adjustment oil cylinder is provided with an oil inlet 32 and an oil outlet 33, the oil inlet 32 is positioned at the outer side of the oil outlet 33, and the oil inlet 32 and the oil outlet 33 are respectively connected with an oil inlet path and an oil outlet path.
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: when oil is fed and discharged, the piston rod 31 is driven to stretch out and contract respectively, so that the inner connecting piece 4 is pushed and pulled, and the wheel is compensated.
Example four:
referring to fig. 1-4, a vehicle steering system provided by the fourth embodiment of the present invention is shown in the drawings, and the present embodiment further makes the following technical solutions as improvements on the basis of the above embodiments: the steering column 2 is connected to a steering gear 51 via a pin 7.
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: the transmission connection between the steering column 2 and the steering gear 51 is realized, and the device is simple, convenient and flexible.
Example five:
referring to fig. 1-3, a vehicle steering system provided by a fifth embodiment of the present invention is shown in the drawings, and the present embodiment further makes the following technical solutions as improvements on the basis of the above embodiments: (ii) a The spur rack drive teeth 521 are located at the middle of the spur rack.
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: the steering gear 51 can be positionally restricted to avoid an over-travel phenomenon.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A vehicle steering system is characterized by comprising a steering wheel (1), a steering column (2), a gear transmission assembly, a fine adjustment component (3) and an inner connecting piece (4) of a steering pull rod, wherein the steering wheel (1) is in transmission connection with the steering column, the gear transmission assembly comprises a steering gear (51) and a steering rack (52), the steering gear (51) is arranged at the bottom of the steering column (2), the steering gear (51) is in meshing connection with the steering rack (52), the fine adjustment component (3) is a linear fine adjustment oil cylinder, and the linear fine adjustment oil cylinder is arranged at two ends of the steering rack (52); the inner connecting piece (4) is connected with a piston rod (31) of the linear fine adjustment oil cylinder; the steering rack (52) is a spur rack.
2. A vehicle steering system according to claim 1, characterized in that the piston rod (31) of the linear trimming cylinder is disposed toward the outside of both ends of the steering rack (52).
3. A vehicle steering system according to claim 2, characterized in that the steering wheel (1) and the steering column (2) are drivingly connected by a universal joint (6).
4. A vehicle steering system according to claim 3, wherein the inner link (4) is "U" shaped on its sides.
5. A vehicle steering system according to claim 4, characterized in that the inner link (4) is provided with attachment holes (41) for the steering tie rods on opposite sides.
6. The vehicle steering system according to claim 5, wherein the linear fine-tuning cylinder is provided with an oil inlet (32) and an oil outlet (33), the oil inlet (32) is located outside the oil outlet (33), and the oil inlet (32) and the oil outlet (33) are respectively connected with an oil inlet path and an oil outlet path.
7. A vehicle steering system according to claim 1 or 6, characterized in that the steering column (2) is connected to the steering gear (51) by a pin (7).
8. A vehicle steering system according to claim 7, characterized in that the spur rack has a gearing (521) located in the middle of the spur rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022250053.2U CN213354603U (en) | 2020-10-09 | 2020-10-09 | Vehicle steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022250053.2U CN213354603U (en) | 2020-10-09 | 2020-10-09 | Vehicle steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213354603U true CN213354603U (en) | 2021-06-04 |
Family
ID=76128484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022250053.2U Expired - Fee Related CN213354603U (en) | 2020-10-09 | 2020-10-09 | Vehicle steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213354603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844251A (en) * | 2021-10-22 | 2021-12-28 | 云南道坦新能源有限公司 | Amphibious soft-landing front-rear driving transport vehicle |
-
2020
- 2020-10-09 CN CN202022250053.2U patent/CN213354603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844251A (en) * | 2021-10-22 | 2021-12-28 | 云南道坦新能源有限公司 | Amphibious soft-landing front-rear driving transport vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210604 Termination date: 20211009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |