CN218703450U - Vehicle rear wheel steering device - Google Patents
Vehicle rear wheel steering device Download PDFInfo
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- CN218703450U CN218703450U CN202222262329.8U CN202222262329U CN218703450U CN 218703450 U CN218703450 U CN 218703450U CN 202222262329 U CN202222262329 U CN 202222262329U CN 218703450 U CN218703450 U CN 218703450U
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- rack
- sliding
- gear
- sliding block
- sliding rail
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Abstract
The utility model discloses a vehicle rear wheel turns to device relates to vehicle steering technical field. The vehicle rear wheel steering device comprises a front steering mechanism and a rear steering mechanism; the front steering mechanism comprises a first gear and a first rack; the first gear is connected with an automobile steering wheel, and the bottom of the first rack is fixedly connected with a first sliding block; the rear steering mechanism comprises a second gear and a second rack, the second gear is connected with a direction booster, the bottom of the second rack is fixedly connected with a second sliding block, and the bottom of the second rack is fixedly connected with a second sliding block; the first sliding block is connected in the first sliding rail in a sliding mode, a first air spring is arranged at each of two ends of the first sliding rail, and the first rack is connected with the second rack through a transmission mechanism, so that the moving directions of the first rack and the second rack are opposite.
Description
Technical Field
The utility model relates to a vehicle turns to technical field, concretely relates to vehicle rear wheel turns to device.
Background
The existing rear wheel steering is mostly controlled by an electric power steering system or a transmission shaft, the problem that the electric power steering system is large is the problem of reliability, and the existing electric power steering technology is mature. However, an electronic system is still more complicated than a pure mechanical structure, particularly under the condition of violent driving, a power-assisted motor is easy to overload, and the work of the power-assisted system is influenced, so that a hydraulic power-assisted steering system is used for a plurality of performance vehicle types considering the violent driving working conditions, a steering wheel and a rear wheel steering gear are connected by a rotating shaft penetrating through a vehicle body in the conventional transmission shaft steering mode, and the design of the vehicle is inconvenient due to the existence of the transmission shaft.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a vehicle rear wheel steering device to solve the problem that above-mentioned technique exists.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a vehicle rear wheel steering device comprises a front steering mechanism and a rear steering mechanism;
the front steering mechanism comprises a first gear and a first rack; the first gear is connected with an automobile steering wheel, and the bottom of the first rack is fixedly connected with a first sliding block; the first sliding block is connected in the first sliding rail in a sliding manner, the first sliding block is connected with the first sliding rail in a sliding manner, two ends in the first sliding rail are respectively provided with a first air spring, the first air springs are fixedly connected in the first sliding rail, and the output ends of the two first air springs are respectively abutted to two sides of the first sliding block;
the rear steering mechanism comprises a second gear and a second rack, the second gear is connected with the direction booster, the second gear is meshed with the second rack, the bottom of the second rack is fixedly connected with a second sliding block, and the bottom of the second rack is fixedly connected with a second sliding block; the second sliding block is connected in the second sliding rail in a sliding manner, the second sliding block is connected with the second sliding rail in a sliding manner, two ends in the second sliding rail are respectively provided with a second gas spring, the second gas springs are fixedly connected in the second sliding rail, and the output ends of the two second gas springs are respectively abutted against two sides of the second sliding block;
the first rack and the second rack are connected through a transmission mechanism, so that the moving directions of the first rack and the second rack are opposite.
Optionally, the transmission mechanism includes four guide wheels, two of the guide wheels are disposed at two ends of the first slide rail in the sliding direction of the first slide block, and the other two of the guide wheels are disposed at two ends of the second slide rail in the sliding direction of the second slide block; one end of the first rack in the moving direction is fixedly connected with a first connecting rope, the first connecting rope sequentially penetrates through two guide wheels on the same side of the first rack and the second rack and is connected to the second rack, the other end of the second rack in the sliding direction is fixedly connected with a second connecting rope, and the second connecting rope sequentially penetrates through the other two guide wheels and is connected to the other end of the second rack.
Optionally, the first rack and the second rack are provided with hangers at two ends along the sliding direction thereof for connecting a connecting rope.
Optionally, the connecting rope is a flexible steel wire rope.
Optionally, the first gear is in transmission connection with a steering wheel of the automobile, and the second gear is connected with the direction booster through a coupler.
The utility model discloses following beneficial effect has at least:
the utility model discloses a set up steering wheel pivot and front wheel steering mechanism's first gear drive and be connected, when hitting the direction, it is rotatory to drive the first gear of front side, first gear drives rather than the first rack of meshing to a side displacement, it slides towards one side to drive first slider in first slide rail simultaneously, the first air spring of compression one side simultaneously of first slider gliding, first rack is when removing, can drive the second rack of rear wheel steering mechanism through drive mechanism and move towards one side opposite with first rack, simultaneously the second rack drives fixed second slider and slides in the second slide rail, can compress the second air spring of one side when the second slider slides, simultaneously when the second rack removes, can drive the second gear rotation of meshing with it, the rotatory direction of driving machine helping hand rear wheel that drives of second gear turns to, turn to the back, loosen the steering wheel, first air spring and second air spring do not receive external force nature to resume flexible state, thereby return the direction of front and back wheel steering mechanism and pass the original steering mechanism and replace original automobile body to run through steering wheel and rear wheel helping hand machine helping hand rear wheel steering, the direction can prevent to drive the steady state of motor position and just occupy the steady state of the motor when the motor vehicle is adjusted in the space condition of the overload.
Drawings
In order to clearly illustrate the prior art and the present invention, the drawings needed to be used in the description of the prior art and the embodiments of the present invention will be briefly described. It should be apparent that the drawings in the following description are merely exemplary, and that other drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that can be achieved.
Fig. 1 is a schematic view of a first perspective structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a second perspective structure according to an embodiment of the present invention.
Description of the reference numerals:
1. a first gear; 2. a first rack; 3. a first slider; 4. a first slide rail; 5. a first gas spring; 6. a second gear; 7. a second rack; 8. a second slide rail; 9. a second slider; 10. a second gas spring; 11. a transmission mechanism; 111. a guide wheel; 112. connecting ropes; 12. hanging a lug; 13. a direction booster.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "first," "second," "third," "fourth," and the like in the description and claims of the present invention and in the above-described drawings (if any) are intended to distinguish between the referenced items. For a scheme with a time sequence flow, the term expression does not need to be understood as describing a specific sequence or a sequence order, and for a scheme of a device structure, the term expression does not have distinction of importance degree, position relation and the like.
Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements specifically listed, but may include other steps or elements not expressly listed that are inherent to such process, method, article, or apparatus or that are added to such process, method, article, or apparatus based on the concepts of the present invention.
As shown in fig. 1 and 2, a rear wheel steering apparatus for a vehicle disclosed by the present invention includes a front steering mechanism and a rear steering mechanism;
the front steering mechanism comprises a first gear 1 and a first rack 2; the first gear 1 is connected with an automobile steering wheel, and the bottom of the first rack 2 is fixedly connected with a first sliding block 3; the sliding device is characterized by further comprising a first sliding rail 4, the first sliding block 3 is connected in the first sliding rail 4 in a sliding mode, the first sliding block 3 is connected with the first sliding rail 4 in a sliding mode, two ends in the first sliding rail 4 are respectively provided with a first air spring 5, the first air springs 5 are fixedly connected in the first sliding rail 4, and the output ends of the two first air springs 5 are respectively abutted to two sides of the first sliding block 3;
the rear steering mechanism comprises a second gear 6 and a second rack 7, the second gear 6 is connected with a direction booster 13, the second gear 6 is meshed with the second rack 7, the bottom of the second rack 7 is fixedly connected with a second sliding block 9, and the bottom of the second rack 7 is fixedly connected with the second sliding block 9; the sliding device is characterized by further comprising a second slide rail 8, the second slide block 9 is connected in the second slide rail 8 in a sliding manner, the second slide block 9 is connected with the second slide rail 8 in a sliding manner, two ends in the second slide rail 8 are respectively provided with a second gas spring 10, the second gas springs 10 are fixedly connected in the second slide rail 8, and the output ends of the two second gas springs 10 are respectively abutted to two sides of the second slide block 9;
the first rack 2 and the second rack 7 are connected through a transmission mechanism 11, so that the moving directions of the first rack 2 and the second rack 7 are opposite.
The transmission mechanism 11 includes four guide wheels 111, two of the guide wheels 111 are disposed at two ends of the first slide block 3 on the first slide rail 4 in the sliding direction, and the other two guide wheels 111 are disposed at two ends of the second slide block 9 on the second slide rail 8 in the sliding direction; one end of the first rack 2 along the moving direction thereof is fixedly connected with a first connecting rope 112, the first connecting rope 112 sequentially passes through two guide wheels 111 on the same side of the first rack 2 and the second rack 7 and is connected to the second rack 7, the other end of the second rack 7 along the sliding direction thereof is fixedly connected with a second connecting rope 112, and the second connecting rope 112 sequentially passes through the other two guide wheels 111 and is connected to the other end of the second rack 7.
Both ends of the first rack 2 and the second rack 7 along the sliding direction are provided with hanging lugs 12 for connecting a connecting rope 112.
The connecting rope 112 is a flexible steel wire rope.
The installation mode is as follows: the second gear 6 of the rear wheel steering mechanism is connected with a direction booster 13 by a coupler, the first gear 1 of the front wheel steering mechanism is in transmission connection with a steering wheel rotating shaft of an automobile, two ends of the first gear 1 of the front wheel steering mechanism are connected with a flexible steel wire rope through lugs 12, the flexible steel wire rope sequentially penetrates through two guide wheels 111 on two sides and is connected to the lugs 12 on two ends of a second rack 7 of the rear wheel steering mechanism, a first air spring 5 is fixed in a first sliding rail 4, a second air spring 10 is fixed in a second sliding rail 8, and output ends of the two first air springs 5 are respectively abutted against two sides of a first sliding block 3; the output ends of the two second gas springs 10 are respectively abutted against the two sides of the second sliding block 9; wherein the first slide rail 4, the second slide rail 8 and the guide wheel 111 are fixed on the automobile.
The working principle is as follows: the steering wheel rotating shaft is in transmission connection with a first gear 1 of a front wheel steering mechanism, when the steering wheel is steered, the first gear 1 on the front side is driven to rotate, the first gear 1 drives a first rack 2 meshed with the first gear to move to one side, and simultaneously drives a first sliding block 3 to slide towards one side in a first sliding rail 4, the first sliding block 3 slides and simultaneously compresses a first air spring 5 on one side, when the first rack 2 moves, a second rack 7 of a rear wheel steering mechanism can be driven to move towards the side opposite to the first rack 2 through a connecting rope 112, meanwhile, the second rack 7 drives a fixed second sliding block 9 to slide in a second sliding rail 8, when the second sliding block 9 slides, a second air spring 10 on one side can be compressed, when the second rack 7 moves, the second gear 6 can drive a second gear 6 meshed with the second rack to rotate, a direction booster 13 assists in power and then turns, after the steering wheel is turned, the steering wheel is loosened, and the first air spring 5 and the second air spring 10 are not subjected to natural external force recovery from the steering wheel, so that the direction of the steering wheel returns.
All the technical features of the above embodiments can be arbitrarily combined (as long as there is no contradiction between the combinations of the technical features), and for brevity of description, all the possible combinations of the technical features in the above embodiments are not described; these examples, which are not explicitly described, should be considered to be within the scope of the present description.
The present invention has been described in considerable detail by the general description and the specific examples given above. It should be noted that, without departing from the inventive concept, it is obvious that several variations and modifications can be made to the specific embodiments, which fall within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A vehicle rear wheel steering device characterized in that: comprises a front steering mechanism and a rear steering mechanism;
the front steering mechanism comprises a first gear (1) and a first rack (2); the first gear (1) is connected with an automobile steering wheel, and the bottom of the first rack (2) is fixedly connected with a first sliding block (3); the sliding device is characterized by further comprising a first sliding rail (4), the first sliding block (3) is connected in the first sliding rail (4) in a sliding mode, the first sliding block (3) is connected with the first sliding rail (4) in a sliding mode, two ends in the first sliding rail (4) are respectively provided with a first air spring (5), the first air springs (5) are fixedly connected in the first sliding rail (4), and the output ends of the two first air springs (5) are respectively abutted to two sides of the first sliding block (3);
the rear steering mechanism comprises a second gear (6) and a second rack (7), the second gear (6) is connected with a direction booster (13), the second gear (6) is meshed with the second rack (7), and the bottom of the second rack (7) is fixedly connected with a second sliding block (9); the sliding device is characterized by further comprising a second sliding rail (8), the second sliding block (9) is connected into the second sliding rail (8) in a sliding mode, the second sliding block (9) is connected with the second sliding rail (8) in a sliding mode, two ends in the second sliding rail (8) are respectively provided with a second air spring (10), the second air springs (10) are fixedly connected into the second sliding rail (8), and the output ends of the two second air springs (10) are respectively abutted to two sides of the second sliding block (9);
the first rack (2) is connected with the second rack (7) through a transmission mechanism (11), so that the moving directions of the first rack (2) and the second rack (7) are opposite.
2. A vehicle rear wheel steering device according to claim 1, characterized in that: the transmission mechanism (11) comprises four guide wheels (111), wherein two guide wheels (111) are arranged at two ends of the first sliding block (3) on the first sliding rail (4) in the sliding direction, and the other two guide wheels (111) are arranged at two ends of the second sliding block (9) on the second sliding rail (8) in the sliding direction; first rack (2) is along its one end fixedly connected with first connecting rope (112) of moving direction, first connecting rope (112) pass in proper order first rack (2) and second rack (7) are with two guide pulley (111) of one side to on being connected to second rack (7), second rack (7) are along its other end fixedly connected with second connecting rope (112) of sliding direction, second connecting rope (112) pass in proper order other two guide pulley (111) to be connected to the other end of second rack (7).
3. A vehicle rear wheel steering device according to claim 1, characterized in that: both ends of the first rack (2) and the second rack (7) along the sliding direction are provided with hangers (12) for connecting a connecting rope (112).
4. A vehicle rear wheel steering device according to claim 3, characterized in that: the connecting rope (112) is a flexible steel wire rope.
5. A vehicle rear wheel steering device according to claim 1, characterized in that: the first gear (1) is in transmission connection with an automobile steering wheel, and the second gear (6) is connected with the direction booster (13) through a coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262329.8U CN218703450U (en) | 2022-08-26 | 2022-08-26 | Vehicle rear wheel steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262329.8U CN218703450U (en) | 2022-08-26 | 2022-08-26 | Vehicle rear wheel steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218703450U true CN218703450U (en) | 2023-03-24 |
Family
ID=85630969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222262329.8U Active CN218703450U (en) | 2022-08-26 | 2022-08-26 | Vehicle rear wheel steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218703450U (en) |
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2022
- 2022-08-26 CN CN202222262329.8U patent/CN218703450U/en active Active
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