CN112829826B - Turn to locking structure, rear steering system and vehicle behind vehicle - Google Patents
Turn to locking structure, rear steering system and vehicle behind vehicle Download PDFInfo
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- CN112829826B CN112829826B CN202110368156.5A CN202110368156A CN112829826B CN 112829826 B CN112829826 B CN 112829826B CN 202110368156 A CN202110368156 A CN 202110368156A CN 112829826 B CN112829826 B CN 112829826B
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- rear steering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/16—Arrangement of linkage connections
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention provides a vehicle rear steering locking structure, a rear steering system and a vehicle, wherein the vehicle rear steering locking structure comprises: a first mounting side arm is arranged on one side of the rear steering left rocker arm; a second mounting side arm which is arranged corresponding to the first mounting side arm is arranged on one side of the rear steering right rocker arm, and a gap is defined between the second mounting side arm and the first mounting side arm; the locking piece is arranged between the first mounting side arm and the second mounting side arm and is detachably connected with the first mounting side arm and the second mounting side arm respectively. According to the vehicle rear steering locking structure provided by the embodiment of the invention, the rear steering left rocker arm and the rear steering right rocker arm are detachably connected through the locking piece, so that when a vehicle hydraulic system breaks down, the rear wheels cannot swing randomly due to uneven road surfaces in the subsequent driving process of a vehicle, and the driving stability and safety of the vehicle are ensured.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle rear steering locking structure, a rear steering system and a vehicle.
Background
Rear steering systems are provided in some special vehicles (such as municipal refuse vehicles, sprinkler cars and military vehicles) to reduce the turning diameter of the vehicles and increase the passing performance of the whole vehicles. Rear steering systems typically use hydraulic centering techniques to center and maintain the rear wheels of the vehicle in a straight position when steering is not desired. However, when a hydraulic system of the rear steering system breaks down, the rotation of the rear wheels is not restrained, and when the vehicle runs on an uneven road surface, the vehicle is unstable, so that potential safety hazards exist.
Disclosure of Invention
In view of the above, the present invention provides a rear steering lock structure for a vehicle.
The invention also provides a vehicle rear steering system with the vehicle rear steering locking structure.
The invention further provides a vehicle with the vehicle rear steering system.
In order to solve the technical problems, the invention adopts the following technical scheme:
the vehicle rear steering lock structure according to the embodiment of the invention includes:
the rear steering left rocker arm is provided with a first mounting side arm at one side;
a second mounting side arm arranged corresponding to the first mounting side arm is arranged on one side of the rear steering right rocker arm, and a gap is defined between the second mounting side arm and the first mounting side arm;
the locking piece is arranged between the first installation side arm and the second installation side arm and detachably connected with the first installation side arm and the second installation side arm respectively.
Furthermore, the first mounting side arm and the second mounting side arm are provided with a first mounting hole at opposite ends, and the locking piece is provided with a second mounting hole at two ends corresponding to the first mounting hole.
Further, the first mounting hole is an elongated hole, and the second mounting hole is a circular hole.
Further, the clearance between the first installation side arm and the second installation side arm is formed into a wedge-shaped clearance with one end dimension larger than the other end dimension, and the locking piece comprises:
the matching part is formed into a wedge-shaped block matched with the gap shape;
the two connecting parts are respectively arranged on two sides of the matching part and connected with the matching part, and the second mounting holes are formed in the connecting parts.
Furthermore, the edges of the first mounting side arm and the second mounting side arm are respectively provided with a concave part.
Further, the rear steering left rocker arm and the first mounting side arm are integrally formed, and the rear steering right rocker arm and the second mounting side arm are integrally formed.
The vehicle rear steering system according to the embodiment of the second aspect of the invention includes the vehicle rear steering lock structure described in the above embodiment, and further includes:
one end of the rear steering left pull rod is connected with a left wheel, and the other end of the rear steering left pull rod is connected with the rear steering left rocker arm;
one end of the rear steering right pull rod is connected with a right wheel, and the other end of the rear steering right pull rod is connected with the rear steering right rocker arm;
the rear steering middle pull rod is connected with the rear steering left rocker arm and the rear steering right rocker arm;
the rear steering power cylinder is connected with the rear steering right rocker arm;
and the rear steering centering cylinder is connected with the rear steering left rocker arm.
A vehicle according to an embodiment of the third aspect of the invention includes the vehicle rear steering system described in the above embodiment.
The technical scheme of the invention has the following beneficial effects:
according to the vehicle rear steering locking structure provided by the embodiment of the invention, the rear steering left rocker arm and the rear steering right rocker arm are detachably connected through the locking piece, so that when a vehicle hydraulic system breaks down, the rear wheels cannot swing randomly due to uneven road surfaces in the subsequent driving process of a vehicle, and the driving stability and safety of the vehicle are ensured.
Drawings
FIG. 1 is a schematic structural diagram of a rear steering lock structure of a vehicle according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a rear steering system of a vehicle in an embodiment of the invention.
Reference numerals
A vehicle rear steering lock structure 100; a rear steering left rocker arm 10; a first mounting side arm 11; a first mounting hole 12; a rear steering right rocker arm 20; a second mounting side arm 21; a lock member 30; the fitting portion 31; a connecting portion 32; the second mounting hole 33; a rear steering left tie rod 40; a rear steering right tie rod 50; a rear center tie rod 60; a rear steering power cylinder 70; a rear steering centering cylinder 80; a left wheel 90; and a right wheel 91.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The following specifically describes the vehicle rear steering lock structure 100 according to the embodiment of the invention first with reference to the drawings.
The vehicle rear steering lock structure 100 according to the embodiment of the present invention includes a rear steering left rocker arm 10, a rear steering right rocker arm 20, and a lock member 30.
Specifically, a first mounting side arm 11 is arranged on one side of the rear steering left rocker arm 10, a second mounting side arm 21 arranged corresponding to the first mounting side arm 11 is arranged on one side of the rear steering right rocker arm 20, a gap is defined between the second mounting side arm 21 and the first mounting side arm 11, and a locking member 30 is arranged between the first mounting side arm 11 and the second mounting side arm 21 and detachably connected with the first mounting side arm 11 and the second mounting side arm 21 respectively.
In other words, as shown in fig. 1, the vehicle rear steering locking structure 100 mainly comprises the rear steering left rocker arm 10, the rear steering right rocker arm 20 and the locking member 30, when the hydraulic system of the vehicle fails, the rear wheels cannot be stabilized at the straight position, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 are connected together by manually installing the locking member 30, when the left wheel 90 deflects due to the impact of external force, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 are fixed together and cannot rotate, and the left and right wheels are fixed at the original positions and keep the straight state.
Therefore, according to the vehicle rear steering locking structure 100 provided by the embodiment of the invention, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 are detachably connected through the locking piece 30, so that when a vehicle hydraulic system fails, the rear wheels cannot swing randomly due to uneven road surfaces in the subsequent driving process of the vehicle, and the driving stability and safety of the vehicle are ensured.
According to an embodiment of the present invention, the first mounting-side arm 11 and the second mounting-side arm 21 are provided with first mounting holes 12 at opposite ends thereof, and the locking member 30 is provided with second mounting holes 33 at opposite ends thereof, corresponding to the first mounting holes 12.
That is, by providing the first mounting hole 11 and the second mounting hole 33, the first mounting-side arm 11 and the second mounting-side arm 21 are respectively bolted to the locking member 30, and the bolted connection is easy to mount and dismount and is low in cost.
Preferably, the first mounting hole 12 is an elongated hole, and the second mounting hole 33 is a circular hole. The first mounting hole 12 is an elongated hole, which not only can play a role of reducing weight, but also is convenient for adjusting the relative mounting position with the second mounting hole 33, and is convenient for assembly.
In one embodiment of the present invention, the gap between the first and second mounting- side arms 11 and 21 is formed as a wedge-shaped gap having a size larger at one end than at the other end, and the locking member 30 includes a fitting portion 31 and two coupling portions 32.
Specifically, the fitting portion 31 is formed as a wedge-shaped block matching the shape of the gap, two connecting portions 32 are respectively provided at both sides of the fitting portion 31 and connected to the fitting portion 31, and the connecting portions 32 are provided with second mounting holes 33. The locking member 30 and the gap have simple structure, are not affected by manufacturing and assembling errors, cannot interfere with each other in the assembling and rotating processes, and are firmly matched.
Alternatively, the edges of the first and second mounting- side arms 11 and 21 are respectively provided with a recess, that is, the edges of the first and second mounting- side arms 11 and 21 are formed into an uneven curve, thereby further increasing the overall strength.
According to one embodiment of the invention, the rear steering left rocker arm 10 and the first mounting side arm 11 are integrally formed, and the rear steering right rocker arm 20 and the second mounting side arm 21 are integrally formed, so that the integrally formed part is stable in structure and convenient to process.
In summary, according to the vehicle rear steering locking structure 100 of the embodiment of the invention, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 are detachably connected through the locking member 30, so that when a vehicle hydraulic system fails, the rear wheels of the vehicle cannot swing freely due to uneven road surfaces in the subsequent driving process, and the driving stability and safety of the vehicle are ensured.
The vehicle rear steering system according to the second aspect of the present invention includes the vehicle rear steering locking structure 100 according to the above-described embodiment, and further includes a rear steering left tie rod 40, a rear steering right tie rod 50, a rear steering middle tie rod 60, a rear steering power cylinder 70, and a rear steering centering cylinder 80.
Specifically, one end of the rear steering left tie rod 40 is connected with the left wheel 90, the other end is connected with the rear steering left rocker arm 10, one end of the rear steering right tie rod 50 is connected with the right wheel 91, the other end is connected with the rear steering right rocker arm 20, the rear steering middle tie rod 60 is connected with the rear steering left rocker arm 10 and the rear steering right rocker arm 20, the rear steering power cylinder 70 is connected with the rear steering right rocker arm 20, and the rear steering centering cylinder 80 is connected with the rear steering left rocker arm 10.
As shown in fig. 2, the rear steering system of the vehicle operates as follows, the rear steering system is not provided with a structure (such as a steering wheel) which can be directly controlled by a driver, the rear steering actuator is a rear steering power cylinder 70, the rear steering power cylinder 70 drives the rear steering right rocker arm 20 to swing, and the rear steering right rocker arm 20 drives the rear steering right pull rod 50, the rear steering middle pull rod 60, the rear steering left rocker arm 10 and the rear steering left pull rod 40 to move, so as to drive the left and right wheels to rotate. After the rear steering function is completed, the rear steering centering cylinder 80 locks the rear steering left rocker arm 10 at the straight-ahead position, so that the left and right wheels are ensured not to swing due to interference of external force. When the rear steering centering cylinder 80 has a fault, the rear wheels cannot be stabilized at a straight position, when the left wheel 90 is impacted and deflected by external force, the rear steering left pull rod 40 transmits force to the rear steering left rocker arm 10, the rear steering middle pull rod 60 and the rear steering right rocker arm 20, so that the right wheel 91 is deflected, at the moment, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 are connected together through the locking piece 30, the rear steering left rocker arm 10 and the rear steering right rocker arm 20 cannot rotate, and therefore the left wheel and the right wheel are fixed in position and kept in a straight state.
Therefore, according to the vehicle rear steering system provided by the embodiment of the invention, the rear steering hydraulic system is started when the rear steering hydraulic system fails, and the running stability and safety of the vehicle are ensured by limiting the rotation of the rear wheels.
The vehicle according to the embodiment of the invention comprises the vehicle rear steering system according to the embodiment, and the vehicle rear steering system according to the embodiment of the invention has the technical effects, so the vehicle according to the embodiment of the invention also has the corresponding technical effects, namely, the smoothness and the safety of the vehicle running are ensured.
Other structures and operations of the vehicle according to the embodiment of the present invention will be understood and readily implemented by those skilled in the art, and thus will not be described in detail.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A vehicle rear steering lock structure, characterized by comprising:
the rear steering left rocker arm is provided with a first mounting side arm at one side;
a second mounting side arm arranged corresponding to the first mounting side arm is arranged on one side of the rear steering right rocker arm, and a gap is defined between the second mounting side arm and the first mounting side arm;
the locking piece is arranged between the first mounting side arm and the second mounting side arm and is detachably connected with the first mounting side arm and the second mounting side arm respectively;
a gap between the first mounting side arm and the second mounting side arm is a wedge-shaped gap with one end larger than the other end, first mounting holes are respectively formed in one ends of the first mounting side arm opposite to the second mounting side arm, and second mounting holes corresponding to the first mounting holes are respectively formed in two ends of the locking piece;
the lock member includes:
the matching part is formed into a wedge-shaped block matched with the gap shape;
the two connecting parts are respectively arranged on two sides of the matching part and connected with the matching part, and the second mounting holes are formed in the connecting parts.
2. The vehicle rear steering lock structure according to claim 1, wherein the first mounting hole is an elongated hole, and the second mounting hole is a circular hole.
3. The vehicle rear steering lock structure according to claim 1, wherein edges of the first mounting-side arm and the second mounting-side arm are respectively provided with a recess.
4. The vehicle rear steering lock structure according to claim 1, wherein the rear steering left rocker arm is integrally formed with the first mounting side arm, and the rear steering right rocker arm is integrally formed with the second mounting side arm.
5. A vehicle rear steering system characterized by comprising the vehicle rear steering lock structure of any one of claims 1 to 4, further comprising:
one end of the rear steering left pull rod is connected with a left wheel, and the other end of the rear steering left pull rod is connected with the rear steering left rocker arm;
one end of the rear steering right pull rod is connected with a right wheel, and the other end of the rear steering right pull rod is connected with the rear steering right rocker arm;
the rear steering middle pull rod is connected with the rear steering left rocker arm and the rear steering right rocker arm;
the rear steering power cylinder is connected with the rear steering right rocker arm;
and the rear steering centering cylinder is connected with the rear steering left rocker arm.
6. A vehicle characterized by comprising the vehicle rear steering system recited in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110368156.5A CN112829826B (en) | 2021-04-06 | 2021-04-06 | Turn to locking structure, rear steering system and vehicle behind vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110368156.5A CN112829826B (en) | 2021-04-06 | 2021-04-06 | Turn to locking structure, rear steering system and vehicle behind vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112829826A CN112829826A (en) | 2021-05-25 |
| CN112829826B true CN112829826B (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110368156.5A Active CN112829826B (en) | 2021-04-06 | 2021-04-06 | Turn to locking structure, rear steering system and vehicle behind vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112829826B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276941A (en) * | 2021-07-02 | 2021-08-20 | 北京汽车集团越野车有限公司 | Centering stop device and vehicle |
| CN114789751A (en) * | 2022-06-07 | 2022-07-26 | 北京汽车集团越野车有限公司 | Rear steering height limiting device and vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2003697A6 (en) * | 1987-03-23 | 1988-11-01 | Sansavini Bertozzi Fabrizio | Self-regulating tractor wheel axle |
| JP2009083534A (en) * | 2007-09-27 | 2009-04-23 | Tadano Ltd | Rear steering lock device of vehicle having a plurality of wheel shafts on rear side |
| CN201415706Y (en) * | 2009-01-22 | 2010-03-03 | 上海锦奔汽车系统有限公司 | Steering system for air independent suspension |
| CN105150862B (en) * | 2015-10-23 | 2017-09-26 | 衡阳合力工业车辆有限公司 | A kind of Sightseeing Trolley |
| CN108820041B (en) * | 2018-06-26 | 2020-07-10 | 西南交通大学 | Four-wheel steering system suitable for distributed electrically-driven bus |
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2021
- 2021-04-06 CN CN202110368156.5A patent/CN112829826B/en active Active
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| Publication number | Publication date |
|---|---|
| CN112829826A (en) | 2021-05-25 |
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