CN220947405U - Swing arm bush structure and car - Google Patents

Abstract

The utility model relates to a configuration part and an accessory thereof for a vehicle suspension device, in particular to a swing arm bushing structure and an automobile, wherein the swing arm bushing structure comprises the following components: the swing arm bushing comprises a connecting shaft and supporting plates which extend outwards respectively opposite to two ends of the connecting shaft; the limiting bracket assembly comprises mounting parts at two ends and an anti-rotation part for receiving the mounting parts; wherein, the installation part of one end is connected to the bottom surface of the supporting plate, and the installation part of the other end is connected to the top surface of the supporting plate; and the connecting bolts respectively penetrate through the supporting plates/the mounting parts and are connected to the auxiliary frame. The beneficial effects of the method are as follows: the mounting parts at two ends of the limiting bracket component are respectively connected with the shaft sleeve component from the top surface and the top surface, the whole swing arm bushing structure cannot twist around the bolt during assembly, and the assembly precision is high; the two ends of the limiting bracket component are fixed, so that the rigidity of the limiting part is enhanced, and the steering stability and the driving comfort of the vehicle are improved.

Description

Swing arm bush structure and car

Technical Field

The utility model relates to a configuration part and an accessory thereof for a vehicle suspension device, in particular to a swing arm bushing structure and an automobile.

Background

In the prior art structure, a swing arm bushing is connected with a subframe through a bushing support plate by two bolts, a limit boss is arranged at the rear end of the bushing support plate, the front part of the bushing is connected with a limit bracket, and the bolts sequentially pass through the bushing support plate and the limit bracket to be connected with the subframe, as shown in fig. 1; however, the prior art has the following technical problems:

1) The existing swing arm bushing limiting structure is in contact with rubber at the front end of the bushing for limiting, the limiting support is simple in structure, the rigidity of the limiting part is low, and the operation stability and the riding comfort are affected;

2) The limiting structure is fixed by only one bolt, the bracket is easy to twist around the bolt when being tightened, so that the contact surface of the bushing and the bracket is inclined relatively, the precision is easy to influence in the assembly process, and the stress of the bushing is uneven in the running process of the vehicle;

3) In the stress process of the swing arm bushing, the stability of the limiting support against elastic deformation is weak, deformation is easy to occur, and the swing arm bushing is invalid after long-term use.

Based on this, the present utility model has been proposed.

Disclosure of utility model

In order to overcome the conditions that the rigidity and the deformation resistance of a swing arm bushing are low in the prior art, the bushing is easy to twist by bolts and incline relatively in the installation process, so that the stress of the whole bushing is uneven, and the service life of the whole swing arm bushing is influenced.

According to a first aspect of the present application, there is provided a swing arm bushing structure, including a swing arm bushing, including a connection shaft and support plates extending outwardly from opposite ends of the connection shaft, respectively; the limiting bracket assembly comprises mounting parts at two ends and an anti-rotation part for bearing the mounting parts; wherein, the installation part of one end is connected to the bottom surface of the supporting plate, and the installation part of the other end is connected to the top surface of the supporting plate; and the connecting bolts respectively penetrate through the supporting plate/the mounting part and are connected to the auxiliary frame.

In a further aspect of the present application, the support plate includes a first support plate and a second support plate; the mounting portion comprises a first mounting plate and a second mounting plate, the first mounting plate is in contact with the bottom surface of the first supporting plate, and the second mounting plate is in contact with the top surface of the second supporting plate.

In a further scheme of the application, first through holes are formed in the first supporting plate and the second supporting plate; the first mounting plate and the second mounting plate are provided with second through holes; the first through hole and the second through hole are coaxially designed and used for the connection bolt to penetrate and fasten.

In a further scheme of the application, the first mounting plate is of a U-shaped structure and comprises a first contact surface and a wrapping surface, wherein the first contact surface is attached to the bottom surface of the first support plate, and the wrapping surface is attached to the side surface of the first support plate.

In a further aspect of the present application, the anti-rotation portion is in a U shape, and includes at least one mounting surface perpendicular to the first mounting plate, and is configured to connect to the first mounting plate, a mounting hole is provided on the mounting surface, the swing arm bushing passes through the mounting hole, and the first support plate and the second support plate are respectively disposed at two ends of the anti-rotation portion.

In a further aspect of the application, the mounting hole and the connecting shaft are in interference connection.

In a further aspect of the present application, a weld bead is provided on the mounting surface, and the weld bead and a cross section of the end portion of the first mounting plate are mutually adapted so as to weld the first mounting plate to one end of the rotation preventing portion.

In a further scheme of the application, the second mounting plate and the rotation preventing part are integrally bent and formed, at least one lightening hole is formed in the rotation preventing part, and a reinforcing rib is arranged at the bending position of the rotation preventing part.

In a further aspect of the present application, the first contact surface and the second mounting plate are both planar and arranged in parallel.

In a further aspect of the present application, the swing arm bushing further includes an elastic body fixedly vulcanized to the connection shaft, and a sleeve having one end connected to a swing arm main body of the vehicle and the other end connected to an outer periphery of the elastic body, wherein the sleeve is rotatable about an axial direction of the connection shaft.

In a further aspect of the present application, the swing arm bushing further includes a limiting body, and the diameter of the limiting body is larger than that of the connection shaft and is disposed between the connection shaft and the support plate.

In a second aspect of the application there is also provided an automobile comprising a swing arm bushing structure as described above; the auxiliary frame is connected with the swing arm through the swing arm bushing structure.

In summary, the swing arm bushing structure provided by the embodiment of the utility model comprises a shaft sleeve assembly and a limit bracket assembly, wherein the shaft sleeve assembly comprises a connecting shaft and support plates which extend outwards relative to two ends of the connecting shaft respectively, and the limit bracket assembly comprises mounting parts at two ends and anti-rotation parts for bearing the mounting parts; in the present general inventive concept, a mounting part at one end is connected to a bottom surface of a support plate, and a mounting part at the other end is connected to a top surface of the support plate; and pass backup pad and installation department respectively through connecting bolt and connect it on the sub vehicle frame, possess following beneficial effect:

1) The mounting parts at two ends of the limiting bracket component are respectively connected with the shaft sleeve component from the top surface and the top surface, the whole swing arm bushing structure cannot twist around the bolt during assembly, and the assembly precision is high;

2) The two ends of the limiting bracket component are fixed, so that the rigidity of the limiting part is enhanced, and the steering stability and the driving comfort of the vehicle are improved;

3) In the stress process, the limiting bracket assembly has the advantages that the stability of the whole elastic deformation resistance is strong, the swing arm bushing structure is not easy to deform, and the service life is prolonged.

Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a swing arm bushing structure according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a swing arm bushing structure according to the present utility model;

fig. 3 is a schematic structural diagram of a swing arm bushing structure according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a bushing assembly in a swing arm bushing structure according to an embodiment of the present utility model;

Fig. 5 is a side view of a limiting bracket assembly in a swing arm bushing structure according to an embodiment of the present utility model; and

Fig. 6 is an axial schematic view of a shaft sleeve assembly in a swing arm bushing structure according to an embodiment of the present utility model.

Description of the reference numerals

100. Swing arm bushing structure;

1. A sleeve assembly; 11. a connecting shaft; 12. a support plate; 121. a first support plate; 122. a second support plate; 123. a first through hole; 13. an elastomer; 14. a limiting body;

2. A spacing bracket assembly; 21. a mounting part; 211. a first mounting plate; 212. a second mounting plate; 213. a second through hole; 214. welding; 215. a mounting hole; 2111. a first contact surface; 2112. a wrapping surface; 22. an anti-rotation part; 221. a mounting surface; 222. a lightening hole; 223. reinforcing ribs;

3. And (5) connecting bolts.

Detailed Description

To further clarify the above and other features and advantages of the present application, a further description of the application will be rendered by reference to the appended drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not limiting, as to those skilled in the art.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the specific details need not be employed to practice the present application. In other instances, well-known steps or operations have not been described in detail in order to avoid obscuring the application.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a swing arm bushing structure 100 according to an embodiment of the present utility model; fig. 2 is an exploded view of a swing arm bushing structure 100 according to the present utility model.

The application provides a swing arm bushing structure 100, wherein the swing arm bushing structure 100 comprises a shaft sleeve assembly 1, a limiting bracket assembly 2 and a connecting bolt 3; the shaft sleeve assembly 1 is used for connecting a swing arm in a vehicle suspension system to a subframe, and can also provide buffering and support between the swing arm and the subframe, so that vibration and impact generated during road jolt and steering are reduced, and the running stability and operability are ensured.

It will be appreciated that reference to a "swing arm" as referred to above generally refers to a member that connects the wheel and the frame, allowing the wheel to move up and down while maintaining the wheel in contact with the ground; the swing arm may be a single arm or a double arm. "subframe" generally refers to a support structure mounted to a vehicle frame that serves to increase the rigidity and stability of the vehicle body while taking over a portion of the mass of the vehicle body. The swing arm bushing structure 100 is a connection member between the subframe and the swing arm.

In the embodiment of the utility model, the shaft sleeve assembly 1 is integrally strip-shaped and comprises a connecting shaft 11 and supporting plates 12 which respectively extend outwards relative to two ends of the connecting shaft 11; the limiting bracket assembly 2 comprises mounting parts 21 at two ends and anti-rotation parts 22 for supporting the mounting parts 21; wherein the mounting part 21 at one end is connected to the bottom surface of the support plate 12, and the mounting part 21 at the other end is connected to the top surface of the support plate 12; the connection bolts 3 are respectively connected to the sub-frame through the support plate 12 and the mounting portion 21.

Specifically, the shaft sleeve assembly 1 is in an overall strip shape and comprises a connecting shaft 11 and an outwardly extending supporting plate 12; the limit bracket assembly 2 comprises mounting parts 21 at two ends and an anti-rotation part 22 for receiving the mounting parts. The mounting portion 21 at one end is connected to the bottom surface of the support plate 12, and the mounting portion 21 at the other end is connected to the top surface of the support plate 12. The connection bolts 3 pass through the support plate 12 and the mounting portion 21, respectively, to connect the entire swing arm bushing structure 100 to the sub-frame.

The advantage of this structure lies in through connecting spacing support subassembly 2 on axle sleeve subassembly 1, the installation department 21 of one end is connected at the top surface of backup pad 12, and the other end installation department 21 is connected at the bottom surface of backup pad 12 to restrict its degree of freedom in vertical direction completely, can increase swing arm bush structure 100's anti-torsion rigidity like this, at the in-process of axle sleeve subassembly 1 installation, can avoid the slope of bushing subassembly 1 to the maximum, at the in-process of axle sleeve subassembly 1 use simultaneously, increase its stability and life-span. Thereby laterally improving the running stability and drivability of the vehicle.

In a specific aspect of the present utility model, the support plate 12 includes a first support plate 121 and a second support plate 122, and the first support plate 121 and the second support plate 122 are respectively disposed at both ends of the connection shaft 11; similarly, the mounting portion 21 includes a first mounting plate 211 and a second mounting plate 212, the first mounting plate 211 is in contact with the bottom surface of the first support plate 121, and the second mounting plate 212 is in contact with the top surface of the second support plate 122.

It will be appreciated that by contacting the first mounting plate 211 with the bottom surface of the first support plate 121 and contacting the second mounting plate 212 with the top surface of the second support plate 122, excessive twisting or deformation of the sleeve assembly 1 is avoided, and the impact of vibration and impact generated by the running of the vehicle on the components is reduced. Meanwhile, the mounting portions 21 are respectively contacted with the bottom and top surfaces of the support plate 12, and the connection firmness and reliability can be also achieved.

Referring to fig. 3 and fig. 4 to 6, fig. 4 is a cross-sectional view of a sleeve assembly 1 according to an embodiment of the present utility model; fig. 5 is a side view of the spacing bracket assembly 2 according to the embodiment of the present utility model; fig. 6 is an isometric view of a bushing assembly 1 according to an embodiment of the present utility model.

Referring first to fig. 3 and 4, first through holes 123 are provided in the first and second support plates 121 and 122; the first mounting plate 211 and the second mounting plate 212 are provided with second through holes 213; the first through hole 123 and the second through hole 213 are coaxially designed for the connection bolt 3 to be penetrated and fastened.

In the embodiment of the present utility model, the first mounting plate 211 has a "U" structure, and includes a first contact surface 2111 and a wrapping surface 2112; the first contact surface 2111 is attached to the bottom surface of the first support plate 121, and the wrapping surface 2112 is attached to the side surface of the first support plate 121.

It can be appreciated that the lower surface of the first support plate 121 is attached to the first contact surface 2111, and the upper surface is attached to the flange surface of the connecting bolt 3; the upper surface of the second supporting plate 122 is attached to the lower surface of the second mounting plate 212 in the same way, and the connecting bolt 3 passes through the first through hole 123 and the second through hole 213 to fix the shaft sleeve assembly 1; meanwhile, the first mounting plate 211 with the U-shaped structure is attached to the first support plate 121 on the bottom surface and the side surface, so that better support and fixing effects can be provided, and the connection between the components is firmer and more stable. The connecting mode can also effectively prevent transverse displacement and distortion, and ensure the precision and stability of the shaft sleeve assembly 1. In addition, the U-shaped structure can bear larger force and pressure, has good strength and rigidity, and improves the service life and reliability of the shaft sleeve assembly 1.

Referring further to fig. 3, 5 and 6, the anti-rotation portion 22 is in a "U" shape, and includes a mounting surface 221 perpendicular to the first mounting plate 211, and configured to be connected to the first mounting plate 211, a mounting hole 215 is provided on the mounting surface 221, the shaft sleeve assembly 1 passes through the mounting hole 215, and the first support plate 121 and the second support plate 122 are respectively disposed at two ends of the anti-rotation portion 22.

It will be appreciated that the anti-rotation portion 22 is mainly used for receiving the first mounting plate 211 and the second mounting plate 212, the connecting shaft 11 is disposed inside the opening of the anti-rotation portion 22, the connecting shaft 11 is configured to avoid interference with the connecting shaft 11, the mounting surface 221 is perpendicular to the first mounting plate 211, and the mounting hole 215 is provided thereon for the shaft sleeve assembly 1 to pass through and be connected. Wherein the mounting hole 215 is in interference connection with the connection shaft 11 to achieve stability of connection.

Further, the second mounting plate 212 and the anti-rotation portion 22 are integrally formed by bending, a welding bead 214 is provided on the mounting surface 221, and cross sections of the welding bead 214 and an end portion of the first mounting plate 211 are mutually adapted so as to weld the first mounting plate 211 to one end of the anti-rotation portion 22.

It will be appreciated that the second mounting plate 212 and the anti-rotation portion 22 are integrally formed by bending, one of which is to facilitate processing, effectively reduce the number of parts, and improve the rigidity and stability of the whole assembly, making it more durable and reliable; meanwhile, the weld bead 214 is provided on the mounting surface 221 of the second mounting plate 212, so that the first mounting plate 211 and the rotation preventing portion 22 can be easily connected. Because the cross-section of the weld bead 214 and the end of the first mounting plate 211 are mutually adapted, a tighter connection can be achieved, thereby ensuring the welding quality and the firmness of the connection. The structural design mode can reduce the structural connection parts, reduce friction and abrasion among components, prolong the service life and bear larger force and moment. Therefore, the integral bending and forming structure and the welding mode can improve the overall performance and reliability of the assembly and meet the requirements on rigidity and stability.

With continued reference to fig. 5 and 6, the anti-rotation portion 22 is provided with at least one lightening hole 222, and a reinforcing rib 223 is disposed at the bending portion of the anti-rotation portion 22. Specifically, the anti-rotation part 22 has a bearing function, and the weight reducing hole 222 is arranged in the middle part, so that the weight of the whole part can be effectively reduced, the light design is realized, and the energy consumption during the operation of the machine is reduced. In addition, the bending part is provided with a plurality of reinforcing ribs 223, so that the local rigidity can be increased, and the overall performance and reliability of the assembly can be improved.

Furthermore, the first contact surface 2111 and the second mounting plate 212 are both planar and parallel, and the two second through holes 213 are respectively formed on the first contact surface 2111 and the second mounting plate 212 and are also formed on the parallel planes, which is beneficial to eliminating the mounting gap during assembly, and the parallel holes can ensure the positioning dimensional accuracy and ensure the accuracy and stability.

With continued reference to fig. 4, in the embodiment of the present utility model, the sleeve assembly 1 further includes an elastic body 13 and a sleeve (not shown), wherein the elastic body 13 is fixedly vulcanized to the connecting shaft 11, one end of the sleeve is connected to a swing arm body of the vehicle, and the other end of the sleeve is connected to an outer circumference of the elastic body 13, and the sleeve is capable of rotating around an axial direction of the connecting shaft 11. The design can provide better flexibility and reliability of movement of the swing arm, and meanwhile, vibration and noise generated by connection of the swing arm and a vehicle body can be effectively reduced. The vulcanization fixing of the elastic body 13 can improve the stability and reliability of the assembly, preventing loosening or falling off between the sleeve and the connecting shaft 11. In addition, the axial rotation of the sleeve can give a single degree of freedom in a certain plane of the swing arm.

The shaft sleeve assembly 1 further comprises a limiting body 14, wherein the diameter of the limiting body 14 is larger than that of the connecting shaft 11, and the limiting body is arranged between the connecting shaft 11 and the supporting plate 12.

It will be appreciated that the design of the spacing body 14 controls the range of motion of the swing arm, avoiding unnecessary damage or risk caused by exceeding the design range. In this design, the diameter of the limiting body 14 is larger than that of the connecting shaft, so that the axial travel of the swing arm can be limited when the swing arm moves, and abrasion and noise are effectively reduced.

In summary, the swing arm bushing structure 100 provided by the embodiment of the utility model comprises a shaft sleeve assembly 1 and a limit bracket assembly 2, wherein the shaft sleeve assembly 1 comprises a connecting shaft 11 and support plates 12 which extend outwards relative to two ends of the connecting shaft 11 respectively, and the limit bracket assembly 2 comprises mounting parts 21 at two ends and anti-rotation parts 22 for receiving the mounting parts 21; in the present general inventive concept, the mounting part 21 at one end is connected to the bottom surface of the support plate 12, and the mounting part 21 at the other end is connected to the top surface of the support plate 12; and pass backup pad 12 and installation department 21 respectively through connecting bolt 3 and connect it on the sub vehicle frame, possess following beneficial effect:

1) The mounting parts 21 at the two ends of the limiting bracket assembly 2 are respectively connected with the shaft sleeve assembly 1 from the top surface and the top surface, the whole swing arm bushing structure 100 cannot twist around a bolt during assembly, and the assembly precision is high;

2) The two ends of the limiting bracket component 2 are fixed, so that the rigidity of the limiting part is enhanced, and the steering stability and riding comfort of the vehicle are improved;

3) In the stress process, the swing arm bushing structure 100 has the advantages that the stability of the whole elastic deformation resistance of the limit bracket assembly 2 is strong, the swing arm bushing structure is not easy to deform, and the service life is prolonged.

Further, it should be understood by those skilled in the art that if all or part of the sub-modules involved in each product of the swing arm bushing structure 100 provided by the embodiments of the present utility model are combined and replaced by fusing, simple changing, mutual changing, etc., such as placing each component in a moving position; or the products formed by the two are integrally arranged; or a removable design; it is within the scope of the present utility model to replace the corresponding components of the present utility model with devices/apparatuses/systems that may be combined to form a device/apparatus/system having a specific function.

The second aspect of the embodiment of the utility model also provides an automobile, which comprises the swing arm bushing structure 100, an auxiliary frame and a swing arm, wherein the swing arm is connected to the auxiliary frame through the swing arm bushing structure.

The swing arm bushing structure 100 is used to connect a swing arm and a subframe of a vehicle to provide support and motion control of the swing arm. Impact and noise generated due to vibration of a vehicle body and unevenness of a road surface can be effectively reduced by the swing arm bushing structure 100, thereby improving driving comfort and stability. And the above swing arm bushing structure 100 can improve structural strength and rigidity of the swing arm connection.

It is to be understood that the specific features, operations and details described herein before with respect to the method of the application may be similarly applied to the apparatus and system of the application, or vice versa. In addition, each step of the method of the present application described above may be performed by a corresponding component or unit of the apparatus or system of the present application.

The technical features described above may be arbitrarily combined. Although not all possible combinations of features are described, any combination of features should be considered to be covered by the description provided that such combinations are not inconsistent.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (12)

1. A swing arm bushing structure, comprising:

The shaft sleeve assembly (1) comprises a connecting shaft (11) and supporting plates (12) which extend outwards relative to two ends of the connecting shaft (11);

The limiting bracket assembly (2) comprises mounting parts (21) at two ends and anti-rotation parts (22) for supporting the mounting parts (21); wherein, the installation part (21) at one end is connected with the bottom surface of the supporting plate (12), and the installation part (21) at the other end is connected with the top surface of the supporting plate (12); and

And the connecting bolts (3) respectively penetrate through the supporting plate (12)/the mounting part (21) and are connected to the auxiliary frame.

2. The swing arm bushing structure of claim 1, wherein,

The support plate (12) comprises a first support plate (121) and a second support plate (122);

The mounting part (21) comprises a first mounting plate (211) and a second mounting plate (212), the first mounting plate (211) is in contact with the bottom surface of the first support plate (121), and the second mounting plate (212) is in contact with the top surface of the second support plate (122).

3. The swing arm bushing structure of claim 2, wherein,

The first support plate (121) and the second support plate (122) are provided with first through holes (123);

the first mounting plate (211) and the second mounting plate (212) are provided with second through holes (213);

The first through hole (123) and the second through hole (213) are coaxially designed for the connection bolt (3) to penetrate and fasten.

4. The swing arm bushing structure of claim 2, wherein,

The first mounting plate (211) is of a U-shaped structure and comprises a first contact surface (2111) and a wrapping surface (2112)

The first contact surface (2111) is attached to the bottom surface of the first support plate (121), and the wrapping surface (2112) is attached to the side surface of the first support plate (121).

5. The swing arm bushing structure of claim 2, wherein,

The anti-rotation part (22) is U-shaped and comprises a mounting surface (221) perpendicular to the first mounting plate (211) and is used for being connected with the first mounting plate (211), mounting holes (215) are formed in the mounting surface (221), the shaft sleeve assembly (1) penetrates through the mounting holes (215), and the first support plate (121) and the second support plate (122) are respectively arranged at two ends of the anti-rotation part (22).

6. The swing arm bushing structure according to claim 5, wherein the mounting hole (215) is in interference connection with the connecting shaft (11).

7. The swing arm bushing structure of claim 5, wherein,

A welding bead (214) is arranged on the mounting surface (221), and the cross sections of the welding bead (214) and the end part of the first mounting plate (211) are mutually matched so as to weld the first mounting plate (211) at one end of the rotation preventing part (22).

8. The swing arm bushing structure of claim 4, wherein,

The second mounting plate (212) and the anti-rotation part (22) are integrally bent and formed, at least one lightening hole (222) is formed in the anti-rotation part (22), and reinforcing ribs (223) are arranged at the bending position of the anti-rotation part (22).

9. The swing arm bushing structure of claim 4, wherein,

The first contact surface (2111) and the second mounting plate (212) are both planar and arranged in parallel.

10. Swing arm bushing arrangement according to claim 1, characterized in that the bushing assembly (1) further comprises an elastomer (13) and a sleeve, the elastomer (13) being fixedly vulcanized onto the connecting shaft (11), one end of the sleeve being connected to a swing arm body of the vehicle and the other end being connected to the outer periphery of the elastomer (13), wherein the sleeve is rotatable about the axial direction of the connecting shaft (11).

11. Swing arm bushing arrangement according to claim 1, characterized in that the shaft sleeve assembly (1) further comprises a limiting body (14), the limiting body (14) having a larger diameter than the connecting shaft (11) and being arranged between the connecting shaft (11) and the support plate (12).

12. An automobile comprising the swing arm bushing structure according to any one of claims 1 to 11; the auxiliary frame is connected with the swing arm through the swing arm bushing structure.