Vehicle steering system and vehicle

Abstract

The utility model discloses a vehicle steering system and a vehicle, and relates to the technical field of motorcycles, the vehicle steering system comprises a frame and a bogie, the bogie is rotatably assembled on a stand column of the frame, the bogie is provided with a left handlebar and a right handlebar, the frame is provided with a steering damper, and the steering damper is provided with a pull rod and a sleeve assembly; in one case, the pull rod faces the left handlebar and is connected with the bogie, the sleeve assembly is rotationally assembled on the frame, and the mounting point of the sleeve assembly deviates from the symmetrical plane of the frame to the direction of the left handlebar by a preset distance D, so that the movement amount of the pull rod relative to the sleeve assembly is consistent when the bogie rotates forwards and backwards relative to the frame. According to the vehicle steering system, the steering damper is deviated by the preset distance D relative to the symmetry plane of the vehicle frame, the movement amount of the steering damper is kept consistent when the vehicle steering system rotates forwards and backwards, and therefore the stability and controllability of vehicle steering are improved.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycles, and in particular to a vehicle steering system and a vehicle. Background Art

[0002] The steering system of a motorcycle is the core part of vehicle control, including the frame and the bogie. In traditional motorcycle design, the driver directly controls the direction of the vehicle by turning the handlebars to rotate the bogie on the frame. In order to further improve driving stability and safety, especially when driving at high speeds or under complex road conditions, the steering system of a motorcycle is often equipped with a steering damper, commonly known as a "titanium ruler". This device helps to reduce the instability of the front of the vehicle caused by uneven roads or high-speed cornering, thereby enhancing the vehicle's controllability and stability.

[0003] In practice, the inventors have found that the existing steering dampers have some defects in installation and use. The tie rod type steering dampers on the market usually have the tie rod connected to the bogie on the left or right side of the column, and the mounting seat is fixed to the frame on the front or rear side of the column. Because the mounting seat is located directly in front of or behind the column, this layout causes the travel of the steering damper to be inconsistent when the motorcycle turns left or right, that is, there will be differences in the telescopic movement of the damper when turning left or right. This not only affects the stability of the vehicle when turning, but may also cause inconsistency in the left and right steering damping forces, affecting the driver's precise control of the vehicle. In addition, the uneven damping effect may cause errors in the control of the front of the vehicle in extreme driving conditions, increasing the risk of falling off the vehicle, which poses a serious threat to driving safety. Utility Model Content

[0004] The purpose of the present application is to provide a vehicle steering system, which achieves consistency in the movement of the steering damper during forward and reverse rotation of the vehicle steering system by offsetting the steering damper by a preset distance D relative to the symmetry plane of the frame, thereby improving the stability and controllability of the vehicle steering. Another purpose of the present application is to provide a vehicle.

[0005] To achieve the above-mentioned object, the present application provides a vehicle steering system, comprising a frame and a bogie, wherein the bogie is rotatably mounted on a column of the frame, the bogie is provided with a left handlebar and a right handlebar, the frame is provided with a steering damper, and the steering damper is provided with a pull rod and a sleeve assembly; wherein:

[0006] The pull rod is arranged toward the left handlebar and connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the mounting point of the sleeve assembly is offset from the symmetric plane of the frame toward the left handlebar by a preset distance D, so as to achieve the same movement amount of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame; or,

[0007] The pull rod is arranged toward the right handlebar and is connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the installation point of the sleeve assembly is offset from the symmetry plane of the frame toward the right handlebar by a preset distance D, so as to achieve consistent movement of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame.

[0008] In some embodiments, the bogie is located at the front side of the frame; and the steering damper is located at the rear side of the bogie.

[0009] In some embodiments, the sleeve assembly includes a sleeve and a mounting seat, the pull rod is movably assembled in the sleeve, the sleeve is mounted on the mounting seat, and the mounting seat is mounted on the frame.

[0010] In some embodiments, the sleeve is fixedly installed in the mounting seat, the mounting seat is rotatably assembled on the frame, and the preset distance D is the distance between the rotation axis of the mounting seat and the symmetry plane of the frame.

[0011] In some embodiments, the mounting base is rotatably disposed on the column.

[0012] In some embodiments, the sleeve is rotatably mounted in the mounting seat, the mounting seat is fixedly assembled to the frame, and the preset distance D is the distance between the rotation axis of the sleeve and the symmetry plane of the frame.

[0013] In some embodiments, the mounting seat includes an upper seat body and a lower seat body, the upper seat body and the lower seat body are connected by fasteners, and a clamping space for mounting the sleeve is formed between the upper seat body and the lower seat body.

[0014] In some embodiments, the preset distance D is between 8.0 mm and 10.0 mm.

[0015] In some embodiments, the bogie is provided with a damping joint, and the damping joint is used to be connected to the end of the pull rod.

[0016] The present application also provides a vehicle, comprising the above-mentioned vehicle steering system.

[0017] Compared with the above background technology, the vehicle steering system provided in the present application mainly includes a frame and a bogie, the bogie is rotatably assembled on the column of the frame, the bogie is provided with a left handlebar and a right handlebar, the frame is provided with a steering damper, and the steering damper is provided with a pull rod and a sleeve assembly.

[0018] In the first case, the pull rod is set toward the left handlebar and connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the mounting point of the sleeve assembly is offset from the symmetry plane of the frame toward the left handlebar by a preset distance D to achieve consistent movement of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame.

[0019] In the second case, the pull rod is set toward the right handlebar and connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the installation point of the sleeve assembly is offset from the symmetry plane of the frame toward the right handlebar by a preset distance D to achieve consistent movement of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame.

[0020] When using the vehicle steering system, the driver controls the rotation of the steering rack by operating the left and right handlebars to achieve the steering of the vehicle. When the driver turns the handlebars on either side, the tie rod connected thereto moves accordingly according to the steering direction, and the steering damper is activated through the interaction between the tie rod and the sleeve assembly. At this time, since the installation position of the sleeve assembly is offset by a preset distance D in the direction of the left or right handlebar relative to the symmetry plane of the frame, it is ensured that the movement of the tie rod relative to the sleeve assembly during forward and reverse rotation remains consistent. This consistent design helps to provide uniform steering damping force, which can ensure the steering stability and controllability of the vehicle whether turning left or right, thereby improving driving safety and comfort.

[0021] In combination with the above structure and process description, it can be seen that the vehicle steering system has at least the following beneficial effects: the vehicle steering system offsets the steering damper by a preset distance D relative to the symmetry plane of the frame, thereby achieving consistency in the movement of the steering damper during forward and reverse rotation of the vehicle steering system, thereby improving the stability and controllability of the vehicle steering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a vehicle steering system provided in an embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of the arrangement of a steering damper in the prior art;

[0025] Figure 3 This is a schematic diagram of the layout of the improved steering damper for this application;

[0026] Figure 4 A schematic diagram of the dimensions of a vehicle steering system provided in an embodiment of the present application.

[0027] in:

[0028] Frame 1, column 11,

[0029] Bogie 2, left handlebar 21, right handlebar 22, damping joint 23,

[0030] Steering damper 3, tie rod 31, sleeve assembly 32, sleeve 321, mounting seat 322,

[0031] Frame symmetry plane 01,

[0032] Damping connection point A02,

[0033] Column center point O03,

[0034] Damping mounting point B04. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle steering system provided in an embodiment of the present application.

[0038] In a first specific embodiment, Figure 1 As shown, the vehicle steering system provided by the embodiment of the present application mainly includes a frame 1 and a bogie 2. The bogie 2 is rotatably assembled on the column 11 of the frame 1. The bogie 2 is provided with a left handlebar 21 and a right handlebar 22. The frame 1 is provided with a steering damper 3. The steering damper 3 is provided with a pull rod 31 and a sleeve assembly 32.

[0039] It should be noted that the vehicle steering system in this embodiment has different implementation schemes according to different installation methods of the steering damper 3 .

[0040] In the first case, the pull rod 31 is arranged toward the left handlebar 21 and is connected to the bogie 2, the sleeve assembly 32 is rotatably assembled on the frame 1, and the installation point of the sleeve assembly 32 is offset from the frame symmetry plane 01 toward the left handlebar 21 by a preset distance D, so as to achieve consistent movement of the pull rod 31 relative to the sleeve assembly 32 when the bogie 2 rotates forward and reverse relative to the frame 1.

[0041] In the second case, the pull rod 31 is arranged toward the right handlebar 22 and connected to the bogie 2, the sleeve assembly 32 is rotatably assembled on the frame 1, and the installation point of the sleeve assembly 32 is offset from the frame symmetry plane 01 toward the right handlebar 22 by a preset distance D, so as to achieve consistent movement of the pull rod 31 relative to the sleeve assembly 32 when the bogie 2 rotates forward and reverse relative to the frame 1.

[0042] Take the first case as an example, that is, the pull rod 31 is set toward the left handlebar 21, please refer to Figure 2 and Figure 3 , Figure 2 is a schematic diagram of the arrangement of a steering damper in the prior art, Figure 3 This is a schematic diagram of the layout of the improved steering damper in this application.

[0043] like Figure 2 As shown, in the traditional installation method of the steering damper 3, the pull rod 31 of the steering damper 3 is connected to the bogie 2 at the damping connection point A02, which can realize the relative rotation of the pull rod 31 and the bogie 2. At the same time, the sleeve assembly 32 of the steering damper 3 is connected to the frame 1 at the damping installation point B04, which can realize the relative rotation of the pull rod 31 and the frame 1. The center point O03 of the column is located in the frame symmetry plane 01, and the damping installation point B04 is located directly behind the center point O03 of the column, so the damping installation point B04 is also located in the frame symmetry plane 01.

[0044] When the motorcycle turns left or right, the damping connection point A02 rotates around the center point O03 of the column. Since the damping mounting point B04 is fixed on the frame 1, the damping connection point A02 drives the pull rod 31 to telescopically move relative to the sleeve assembly 32 to produce a steering damping effect, thereby suppressing the shaking of the steering frame 2. Figure 2 The damping installation point B04 in the figure is located directly behind the center point O03 of the column. This arrangement cannot make the left and right steering strokes of the steering damper 3 consistent at all for the following reasons. The damping connection point A02 rotates around the center point O03 of the column. When the vehicle turns left as shown in the figure, the distance from the damping connection point A02 to the damping installation point B04 becomes shorter. When the vehicle turns right as shown in the figure, the distance from the damping connection point A02 to the damping installation point B04 becomes longer. When the damping installation point B04 is directly in front of or behind the center point O03 of the column, according to kinematic simulation, no matter how the upper and lower distances are adjusted, the left and right steering strokes of the steering damper cannot be guaranteed to be consistent.

[0045] like Figure 3 As shown, the present application improves the installation method of the steering damper 3. On the basis of maintaining the frame symmetry plane 01, the damping connection point A02 and the column center point O03 unchanged, the damping installation point B04 is offset to the left by a preset distance D relative to the frame symmetry plane 01, so as to achieve the purpose of consistent movement of the pull rod 31 relative to the sleeve assembly 32 when the bogie 2 rotates forward and reverse relative to the frame 1.

[0046] In the process of using the vehicle steering system, the driver controls the rotation of the bogie 2 by operating the left handlebar 21 and the right handlebar 22 to achieve the steering of the vehicle. When the driver turns the handlebar on either side, the tie rod 31 connected thereto will move accordingly according to the steering direction, and the steering damper 3 will be activated through the interaction between the tie rod 31 and the sleeve assembly 32. At this time, since the installation position of the sleeve assembly 32 is offset by a preset distance D in the direction of the left or right handlebar relative to the symmetry plane 01 of the frame, it is ensured that the movement amount of the tie rod 31 relative to the sleeve assembly 32 during forward and reverse rotation remains consistent. This consistent design helps to provide uniform steering damping force, which can ensure the steering stability and controllability of the vehicle whether turning left or right, thereby improving driving safety and comfort.

[0047] In combination with the above structure and process description, it can be seen that the vehicle steering system has at least the following beneficial effects: the vehicle steering system offsets the steering damper 3 by a preset distance D relative to the frame symmetry plane 01, thereby achieving consistency in the movement amount of the steering damper 3 during forward and reverse rotation of the vehicle steering system, thereby improving the stability and controllability of the vehicle steering.

[0048] In a specific implementation, the preset distance D is obtained by simulation calculation.

[0049] First, refer to the following table, which gives Figure 2 Motion simulation results for the layout.

[0050]

[0051] From the above table we can see that Figure 2 When the damping installation point B04 is located directly behind the center point O03 of the column, when turning left and right at the same angle, the travel of the steering damper 3 is inconsistent, resulting in inconsistent left and right steering speeds of the steering damper 3, which in turn affects inconsistent left and right steering damping force values.

[0052] In some embodiments, the preset distance D is between 8.0 mm and 10.0 mm.

[0053] In this embodiment, through simulation calculation, the damping installation point B04 is located at a certain distance of 8-10 mm, such as 9 mm, on the side of the frame symmetry plane 01 (the specific distance needs to be obtained by kinematic simulation), which can achieve consistent left and right steering strokes of the steering damper 3, consistent left and right steering damping forces, consistent left and right steering torque control for the driver, and consistent left and right shaking suppression of the vehicle front.

[0054] Please refer to the following table, which gives Figure 3 Motion simulation results for the layout.

[0055]

[0056] From the above table we can see that Figure 3 When the damping installation point B04 is located behind the center point O03 of the column and offset to the left by a preset distance D relative to the frame symmetry plane 01, when turning left and right at the same angle, the travel difference of the steering damper 3 does not exceed 0.07 mm, and therefore the left and right steering travels of the steering damper 3 are regarded as being consistent.

[0057] In some embodiments, the bogie 2 is located at the front side of the vehicle frame 1 .

[0058] In this embodiment, the bogie 2 is designed to be located at the front side of the vehicle frame 1. This layout helps to centralize the steering control center of the vehicle, making the steering operation more direct and sensitive.

[0059] In some embodiments, the steering damper 3 is located at the rear side of the bogie 2 .

[0060] In this embodiment, the steering damper 3 is arranged at the rear side of the bogie 2. Such a configuration helps to balance the weight distribution of the vehicle. In addition, it can provide better stability and controllability when driving at high speed or making sharp turns.

[0061] Through the above layout, the steering damper 3 can effectively damp the rotation of the bogie 2, reduce the shaking of the front of the vehicle caused by uneven road surface or high-speed driving, and thus enhance the controllability and safety of the vehicle.

[0062] In some embodiments, the sleeve assembly 32 includes a sleeve 321 and a mounting seat 322 , the pull rod 31 is movably assembled in the sleeve 321 , the sleeve 321 is mounted on the mounting seat 322 , and the mounting seat 322 is mounted on the vehicle frame 1 .

[0063] In this embodiment, the sleeve assembly 32 is designed to consist of two parts: a sleeve 321 and a mounting seat 322. The sleeve 321 is a rotatable component, and a pull rod 31 is movably mounted inside the sleeve 321. Such a design allows the pull rod 31 to move freely inside the sleeve 321 in response to the steering operation performed by the driver through the left handlebar 21 or the right handlebar 22. The sleeve 321 is then mounted on the mounting seat 322, and the mounting seat 322 is fixedly mounted on the frame 1. Such a structural layout ensures that the steering damper 3 can be stably connected to the frame 1, while allowing relative movement between the pull rod 31 and the sleeve 321 to achieve a smooth and controllable steering damping effect. Through this design, the sleeve assembly 32 not only provides the flexibility required for the steering system, but also increases the stability and reliability of the overall structure.

[0064] It should be noted that the sleeve assembly 32 has different implementation schemes according to different rotation positions.

[0065] In the first case, the sleeve 321 is fixedly installed in the mounting seat 322, and the mounting seat 322 is rotatably assembled on the frame 1. The preset distance D is the distance between the rotation axis of the mounting seat 322 and the symmetry plane 01 of the frame.

[0066] In this embodiment, the sleeve 321 is fixedly mounted in the mounting seat 322, which means that the sleeve 321 will not rotate relative to the mounting seat 322, and the mounting seat 322 is designed to be rotatably assembled on the frame 1. This design allows the sleeve 321 and the mounting seat 322 to rotate as a whole around its rotation axis, so as to adapt to the movement of the pull rod 31 when the vehicle turns.

[0067] In addition, the preset distance D is defined as the distance between the rotation axis of the mounting seat 322 and the frame symmetry plane O1 in this embodiment, and Figure 3 The preset distance D that the middle damping mounting point B04 is offset to the left relative to the frame symmetry plane 01 is the same.

[0068] Optionally, the mounting seat 322 is rotatably disposed on the column 11 , and the connection position between the mounting seat 322 and the column 11 is the damping mounting point B04 . When the pull rod 31 moves, the sleeve assembly 32 will rotate around the damping mounting point B04 .

[0069] In the second case, the sleeve 321 is rotatably mounted in the mounting seat 322 , the mounting seat 322 is fixedly assembled on the frame 1 , and the preset distance D is the distance between the rotation axis of the sleeve 321 and the symmetry plane 01 of the frame.

[0070] In this embodiment, Figure 3The difference from the solution shown is that the sleeve 321 is designed to be rotatable in the mounting seat 322, rather than being fixedly mounted. This design allows the sleeve 321 to rotate under the action of the pull rod 31 to adapt to the movement of the pull rod 31. The mounting seat 322 is fixedly mounted on the frame 1, providing a stable support point to ensure that the rotation of the sleeve 321 does not affect the stability of the entire system.

[0071] In this design, the preset distance D is defined as the distance between the rotation axis of the sleeve 321 and the frame symmetry plane 01. By precisely controlling the preset distance D, it can be ensured that when the bogie 2 rotates forward or reversely, the sleeve 321 and the tie rod 31 can achieve a consistent movement, thereby providing a uniform and stable damping effect and enhancing the vehicle's handling and stability during steering.

[0072] The first embodiment of the sleeve assembly 32 is taken as an example for further description as follows.

[0073] In some embodiments, the mounting seat 322 includes an upper seat body and a lower seat body, the upper seat body and the lower seat body are connected by fasteners, and a clamping space for mounting the sleeve 321 is formed between the upper seat body and the lower seat body.

[0074] In this embodiment, the mounting seat 322 adopts a structural design consisting of an upper seat body and a lower seat body, which allows the mounting seat 322 to have higher stability and adaptability. The upper seat body and the lower seat body are tightly connected by fasteners to form a solid assembly. A clamping space is created between the two seats, and this space is specifically used to install the sleeve 321.

[0075] This clamping design not only provides a stable mounting platform for the sleeve 321, but also ensures the accuracy and stability of the sleeve 321 during rotation through the close fit between the upper and lower seats. The use of fasteners further enhances the overall rigidity of the mounting seat 322, allowing the mounting seat to maintain its structural integrity and functionality under various operating conditions.

[0076] In addition, the lower seat body is rotatably disposed on the column 11, and the connection position between the lower seat body and the column 11 is the damping installation point B04.

[0077] In some embodiments, the bogie 2 is provided with a damping joint 23 , and the damping joint 23 is used to be connected to the end of the pull rod 31 .

[0078] In this embodiment, the design of the damping joint 23 ensures that the pull rod 31 can smoothly and accurately transmit the torque to the bogie 2 during the steering operation, thereby achieving more precise steering control. The connection between the damping joint 23 and the pull rod 31 can effectively reduce the vibration and impact during the steering process, and improve the stability and responsiveness of the steering system.

[0079] by Figure 3 For example, corresponding to the first implementation scheme of the steering damper 3, a damping joint 23 is arranged on the bogie 2 near the left handlebar 21, and the pull rod 31 is arranged toward the left handlebar 21 and the end thereof is hinged to the damping joint 23 on the bogie 2.

[0080] Please refer to Figure 4 , Figure 4 A schematic diagram of the dimensions of a vehicle steering system provided in an embodiment of the present application.

[0081] like Figure 4 As shown, the distance between the upper connecting plate shock absorber mounting holes in the bogie 2 is 210mm, the distance from the column center point O03 to the shock absorber mounting hole connection line is 35mm, the distance from the damping connection point A02 to the shock absorber mounting hole is 40.5mm, the angle between the damping connection point A02 and the shock absorber mounting hole connection line and the reverse extension line of the shock absorber mounting hole connection line is 75°, the longitudinal distance from the damping mounting point B04 to the tie rod 31 is 25.5mm, the longitudinal distance from the damping mounting point B04 to the column center point O03 is 32mm, and the lateral distance from the damping mounting point B04 to the column center point O03 is 9mm. After kinematic simulation, Figure 4 The steering damper 3 in the embodiment has the same steering travel for left and right.

[0082] The present application also provides a vehicle, comprising the above-mentioned vehicle steering system.

[0083] The vehicle includes the above-mentioned vehicle steering system and should have all the beneficial effects of the above-mentioned vehicle steering system, which will not be described in detail here.

[0084] The vehicle may be a motorcycle, including but not limited to a two-wheeled motorcycle and a three-wheeled motorcycle, etc.

[0085] It should be noted that many of the components mentioned in this application are universal standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0086] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0087] The vehicle steering system and vehicle provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A vehicle steering system, characterized in that: It comprises a frame and a bogie, wherein the bogie is rotatably mounted on a column of the frame, the bogie is provided with a left handlebar and a right handlebar, the frame is provided with a steering damper, and the steering damper is provided with a pull rod and a sleeve assembly; wherein: The pull rod is arranged toward the left handlebar and connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the mounting point of the sleeve assembly is offset from the symmetric plane of the frame toward the left handlebar by a preset distance D, so as to achieve the same movement amount of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame; or, The pull rod is arranged toward the right handlebar and is connected to the bogie, the sleeve assembly is rotatably assembled on the frame, and the installation point of the sleeve assembly is offset from the symmetry plane of the frame toward the right handlebar by a preset distance D, so as to achieve consistent movement of the pull rod relative to the sleeve assembly when the bogie rotates forward and reverse relative to the frame.

2. The vehicle steering system according to claim 1, characterized in that: The bogie is located at the front side of the vehicle frame; and the steering damper is located at the rear side of the bogie.

3. The vehicle steering system according to claim 1, characterized in that: The sleeve assembly comprises a sleeve and a mounting seat, the pull rod is movably assembled in the sleeve, the sleeve is mounted on the mounting seat, and the mounting seat is mounted on the vehicle frame.

4. The vehicle steering system according to claim 3, characterized in that: The sleeve is fixedly installed in the mounting seat, and the mounting seat is rotatably assembled on the frame. The preset distance D is the distance between the rotation axis of the mounting seat and the symmetry plane of the frame.

5. The vehicle steering system according to claim 4, characterized in that: The mounting seat is rotatably arranged on the column.

6. The vehicle steering system according to claim 3, characterized in that: The sleeve is rotatably mounted in the mounting seat, the mounting seat is fixedly assembled on the frame, and the preset distance D is the distance between the rotation axis of the sleeve and the symmetry plane of the frame.

7. The vehicle steering system according to claim 3, characterized in that: The mounting seat comprises an upper seat body and a lower seat body, wherein the upper seat body and the lower seat body are connected via fasteners, and a clamping space for mounting the sleeve is formed between the upper seat body and the lower seat body.

8. The vehicle steering system according to claim 1, characterized in that: The preset distance D is between 8.0 mm and 10.0 mm.

9. The vehicle steering system according to claim 1, characterized in that: The bogie is provided with a damping joint, and the damping joint is used to be connected to the end of the pull rod.

10. A vehicle, characterized in that: Comprising a vehicle steering system as claimed in any one of claims 1 to 9.

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