Ball pin assembly, suspension system and vehicle

Abstract

The utility model provides a ball pin assembly, a suspension system and a vehicle. The ball pin assembly includes a shell, a ball pin and a ball seat. The ball seat is arranged in the shell. The ball pin includes a ball head and a pin rod connected to each other. The ball head is arranged in the ball seat, and the pin rod extends out of the shell. At least a part of the ball seat is an elastomer. The elastomer can compensate for the gap between the ball head and the ball seat to avoid the phenomenon of excessive gap between the ball head and the ball seat. A cavity is provided inside the elastomer, and the cavity is filled with lubricating liquid. The lubricating liquid continuously precipitates between the ball head and the ball seat through the molecular gap of the elastomer, and can lubricate the ball head and the ball seat in real time, thereby avoiding the phenomenon of excessive wear between the ball head and the ball seat. Compared with the prior art, it helps to reduce the production cost of the ball pin assembly, reduce the overall volume of the ball pin assembly, and reduce the design and processing difficulty of the ball pin assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of ball studs, in particular to a ball stud assembly, a suspension system and a vehicle. Background Art

[0002] The ball pin assembly is used in the vehicle suspension system. The control arm or thrust rod is often connected to other components through the ball pin located in the ball seat to achieve the up and down bounce and steering movement of the wheel. When the vehicle suspension load is too large or the load is long-term, the ball pin is prone to wear, resulting in a large gap between the ball pin and the ball seat, which in turn leads to a decrease in starting torque and turning torque, and a decrease in steering performance.

[0003] In the prior art, an elastic rubber is usually arranged between the ball pin and the ball seat to compensate for the gap between the ball pin and the ball seat, and a lubrication structure is arranged between the ball pin and the ball seat to reduce the friction between the ball pin and the elastic rubber. However, the above method requires a large number of parts and a complex lubrication structure, which makes the design of the ball pin assembly difficult and the production cost high. Utility Model Content

[0004] In view of this, the utility model provides a ball pin assembly, a suspension system and a vehicle, so as to at least solve the problems of difficult design and high production cost of the existing ball pin assembly.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The utility model provides a ball pin assembly, comprising a shell, a ball pin and a ball seat; the ball seat is arranged in the shell, and the ball pin comprises a ball head and a pin rod connected to each other, the ball head is arranged in the ball seat, and the pin rod extends out of the shell; at least a part of the ball seat is an elastomer, a cavity is arranged inside the elastomer, and the cavity is filled with lubricating liquid, and the lubricating liquid continuously precipitates between the ball head and the ball seat through the molecular gaps of the elastomer.

[0007] Optionally, the ball seat is a split structure, including an upper ball seat and a lower ball seat; the upper ball seat is arranged on the side of the ball head close to the pin rod, and the lower ball seat is arranged on the side of the ball head away from the pin rod; the elastomer forms the lower ball seat.

[0008] Optionally, the elastomer includes a first elastic member and a second elastic member; a first cavity is provided on the first elastic member, and the first cavity is connected to the outside of the first elastic member; a second cavity is provided on the second elastic member, and the second cavity is connected to the outside of the second elastic member; the first elastic member is fixedly connected to the second elastic member, and the first cavity and the second cavity are connected to each other to form the cavity.

[0009] Optionally, the first elastic member and / or the second elastic member is provided with an opening, and the opening is used to inject lubricating liquid into the cavity.

[0010] Optionally, the elastic body further includes a blocking piece, wherein the blocking piece is inserted into the opening and has an interference fit with the opening.

[0011] Optionally, a first abutting surface is provided on a side of the elastic body close to the ball head, the first abutting surface abuts against the ball head, and the first abutting surface is an arc surface.

[0012] Optionally, the ball pin assembly further includes a cover body;

[0013] The cover body is arranged in the shell body and fixedly connected with the shell body, and the lower ball seat is arranged in the cover body.

[0014] Optionally, a second abutting surface is provided on a side of the elastic body away from the ball head, the second abutting surface abuts against the cover body, and the second abutting surface is a plane.

[0015] The utility model also provides a suspension system, comprising any one of the ball and pin assemblies described above.

[0016] The utility model also provides a vehicle, comprising the above-mentioned suspension system.

[0017] Compared with the prior art, the ball pin assembly, suspension system and vehicle described in the utility model have the following advantages:

[0018] The ball pin assembly of the utility model comprises a housing, a ball pin and a ball seat, the ball seat is arranged in the housing, the ball pin comprises a ball head and a pin rod connected to each other, the ball head is arranged in the ball seat, and the pin rod extends out of the housing. At least part of the ball seat is an elastomer, and the elastomer can compensate for the gap between the ball head and the ball seat to avoid the phenomenon of excessive gap between the ball head and the ball seat, thereby ensuring the steering performance of the ball pin assembly. A cavity is provided inside the elastomer, and the cavity is filled with lubricating liquid. The lubricating liquid is continuously precipitated between the ball head and the ball seat through the molecular gap of the elastomer, and the ball head and the ball seat can be lubricated in real time, thereby avoiding the phenomenon of excessive wear between the ball head and the ball seat, which helps to improve the reliability of the ball pin assembly and extend the service life of the ball head and the ball seat. Compared with the prior art, the ball pin assembly of the utility model embodiment effectively reduces the number of required components, thereby helping to reduce the production cost of the ball pin assembly and reduce the overall volume of the ball pin assembly. At the same time, the self-lubrication of the ball head and the ball seat is achieved through the improvement of the elastomer structure. The lubrication method is simple and reliable, which helps to reduce the design and processing difficulty of the ball pin assembly.

[0019] The suspension system and vehicle of the present invention have the same or similar advantages as the prior art and the aforementioned ball pin assembly, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a cross-sectional schematic diagram of a ball pin assembly in an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of an elastic body in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1-shell, 2-ball pin, 21-ball head, 22-pin rod, 3-ball seat, 30-elastic body, 301-cavity, 31-upper ball seat, 32-lower ball seat, 41-first elastic member, 410-first cavity, 42-second elastic member, 420-second cavity, 43-blocking member, 51-first abutting surface, 52-second abutting surface, 6-cover body, 7-dust cover, 8-clamp. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] It should be understood that the reference to "some embodiments" throughout the specification means that specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the utility model. Therefore, the "in some embodiments" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0028] A ball pin assembly, a suspension system and a vehicle provided by the utility model are described in detail below by listing specific embodiments.

[0029] Reference Figure 1 The utility model embodiment provides a ball pin assembly, including a shell 1, a ball pin 2 and a ball seat 3; the ball seat 3 is arranged in the shell 1, and the ball pin 2 includes a ball head 21 and a pin rod 22 connected to each other, the ball head 21 is arranged in the ball seat 3, and the pin rod 22 extends out of the shell 1; at least a part of the ball seat 3 is an elastomer 30, and a cavity 301 is provided inside the elastomer 30, and the cavity 301 is filled with lubricating liquid, and the lubricating liquid continuously precipitates between the ball head 21 and the ball seat 3 through the molecular gap of the elastomer 30.

[0030] In this embodiment, the ball pin 2 and the ball seat 3 are the core components of the ball pin assembly. The ball head 21 can be a spherical structure or a hemispherical structure. The pin rod 22 is a long rod structure. The ball head 21 and the pin rod 22 can be processed into an integral part by an integrated molding process, which can not only save the subsequent assembly and connection process of the ball head 21 and the pin rod 22, but also ensure the connection stability of the ball head 21 and the pin rod 22. The ball head 21 and the pin rod 22 can be made of alloy steel with good hardenability to improve the wear resistance of the surface of the ball head 21 and the pin rod 22. The ball head 21 is arranged in the ball seat 3 and cooperates with the ball seat 3 to form a hinge point, so that the load can be effectively dispersed and transmitted, allowing the wheel to bounce up and down and turn.

[0031] In addition to the housing 1, the ball pin 2 and the ball seat 3, the ball pin assembly also includes a cover 6, a dust cover 7, etc. The housing 1 has an installation cavity, the ball pin 2 and the ball seat 3 are both arranged in the installation cavity, and the pin rod 22 of the ball pin 2 extends out of the installation cavity, and is used to connect with the control arm or steering knuckle of the vehicle. The cover 6 is arranged at the bottom of the housing 1, and the bottom of the housing 1 is the side of the housing 1 away from the pin rod 22. The cover 6 is fixedly connected to the housing 1, and the fixed connection method can be detachably connected by bolts, screws, rivets, etc., or can be welded together by laser welding, which is not limited in this embodiment. After the cover 6 is fixedly connected to the housing 1, a semi-enclosed installation cavity is formed, so that the ball pin 2 and the ball seat 3 arranged in the installation cavity can be well protected, and the external water vapor, dust, etc. can be prevented from affecting the connection relationship and working state of the ball pin 2 and the ball seat 3, and the lubricating fluid between the ball head 21 and the ball seat 3 can also be prevented from leaking. The dust cover 7 is connected to the pin rod 22 of the ball pin 2 and the shell 1 respectively. The dust cover 7 can be fixedly connected to the pin rod 22 and the shell 1 by means of a clamp 8. The dust cover 7 can form a closed cavity between the pin rod 22 and the shell 1. The closed cavity can also protect the ball pin 2 and the ball seat 3 arranged in the installation cavity, and can also prevent the lubricating fluid between the ball head 21 and the ball seat 3 from leaking.

[0032] Part of the ball seat 3 is made of hard metal, and part of it is made of elastomer 30. Elastomer 30 can be made of elastic rubber, polyacetal resin, polyurethane and other materials, and has a certain elastic deformation function. During the operation of the ball pin assembly, the ball head 21 in the ball pin 2 will swing in the ball seat 3. When the load on the ball pin assembly is large, there will be a large friction between the ball head 21 and the ball seat 3. Long-term friction will cause the gap between the ball head 21 and the ball seat 3 to be too large, which will lead to a decrease in the starting torque and turning torque of the ball pin assembly and a decrease in steering performance. In this embodiment, part of the ball seat 3 is made of elastomer 30. The elastic deformation of the elastomer 30 can compensate for the gap between the ball head 21 and the ball seat 3, so that the ball head 21 and the ball seat 3 always keep in contact, thereby increasing the starting torque and turning torque of the ball pin assembly and improving its steering performance. The elastomer 30 in this embodiment directly serves as a part of the ball seat 3. Compared with the method of setting elastic rubber between the ball pin 2 and the ball seat 3 in the prior art, the number of components in the ball pin assembly is effectively reduced, thereby helping to save raw materials, reduce the production cost of the ball pin assembly, and reduce the overall volume of the ball pin assembly.

[0033] Furthermore, the elastomer 30 is provided with a cavity 301 inside, and the cavity 301 is filled with a lubricant. The lubricant may be an aqueous lubricant composed of water, glycerin, cellulose derivatives and other water-soluble components, or a silicone-based lubricant composed of other components added to silicone oil, or an oily lubricant based on mineral oil or vegetable oil. Of course, the lubricant may be grease, and the type of lubricant is not limited in this embodiment. The lubricant continuously precipitates between the ball head 21 and the ball seat 3 through the molecular gap of the elastomer 30. During the friction between the ball head 21 and the ball seat 3, the lubricant lubricates the ball head 21 and the ball seat 3 in real time, thereby effectively reducing the friction between the ball head 21 and the ball seat 3, avoiding excessive wear, and helping to improve the reliability of the ball head 21 and the ball seat 3 and extend the service life of the ball head 21 and the ball seat 3. The lubricating liquid in this embodiment is directly disposed in the cavity 301 inside the elastic body 30, and is precipitated by the molecular gap of the elastic body 30 itself. To ensure the smooth precipitation of the lubricating liquid, an elastic body 30 with a smaller seal can be selected. Thus, the self-lubrication of the ball head 21 and the ball seat 3 can be achieved by improving the structure of the elastic body 30. The lubrication method is simple and reliable, which helps to reduce the design and processing difficulty of the ball pin assembly.

[0034] In addition, when the ball and pin assembly vibrates, the cavity 301 inside the elastomer 30 can achieve buffering through deformation of the cavity 301, thereby buffering the impact and damage to the ball and pin assembly caused by the vibration, further improving the reliability of the ball and pin assembly, and extending the service life of the ball and pin assembly.

[0035] In summary, the ball pin assembly provided by the embodiment of the utility model includes a housing 1, a ball pin 2 and a ball seat 3, the ball seat 3 is arranged in the housing 1, and the ball pin 2 includes a ball head 21 and a pin rod 22 connected to each other, the ball head 21 is arranged in the ball seat 3, and the pin rod 22 extends out of the housing 1. At least part of the ball seat 3 is an elastomer 30, and the elastomer 30 can compensate for the gap between the ball head 21 and the ball seat 3 to avoid the phenomenon of excessive gap between the ball head 21 and the ball seat 3, thereby ensuring the steering performance of the ball pin assembly. The elastomer 30 is provided with a cavity 301 inside, and the cavity 301 is filled with lubricating liquid. The lubricating liquid continuously precipitates between the ball head 21 and the ball seat 3 through the molecular gap of the elastomer 30, and can lubricate the ball head 21 and the ball seat 3 in real time, thereby avoiding the phenomenon of excessive wear between the ball head 21 and the ball seat 3, which helps to improve the reliability of the ball pin assembly and extend the service life of the ball head 21 and the ball seat 3. Compared with the prior art, the ball and pin assembly of the embodiment of the utility model effectively reduces the number of required components, thereby helping to reduce the production cost of the ball and pin assembly and reduce the overall volume of the ball and pin assembly. At the same time, self-lubrication of the ball head 21 and the ball seat 3 is achieved through the improvement of the structure of the elastomer 30. The lubrication method is simple and reliable, which helps to reduce the design and processing difficulty of the ball and pin assembly.

[0036] In some optional embodiments, referring to Figure 1 The ball seat 3 is a split structure, including an upper ball seat 31 and a lower ball seat 32. The upper ball seat 31 is arranged on the side of the ball head 21 close to the pin rod 22, and the lower ball seat 32 is arranged on the side of the ball head 21 away from the pin rod 22. Both the upper ball seat 31 and the lower ball seat 32 cooperate with the ball head 21 to play a certain supporting role for the ball head 21. In this embodiment, the cover body 6 is a bowl-shaped structure, the upper ball seat 31 is arranged inside the cover body 6, and the lower ball seat 32 is arranged outside the cover body 6. The upper ball seat 31 is made of hard metal such as alloy steel, iron-copper alloy, etc., and the lower ball seat 32 is made of elastomer 30, so that the lower ball seat 32 has an elastic deformation function, which can provide gap compensation for the ball head 21 and the ball seat 3 during the operation of the ball pin assembly. It should be noted that since the friction between the lower ball seat 32 and the ball head 21 is greater during the operation of the ball pin assembly, the lower ball seat 32 is made of elastomer 30 in this embodiment. In addition, there may be a certain gap between the upper ball seat 31 and the lower ball seat 32, or they may abut against each other. The specific configuration may be based on actual needs, and this embodiment does not limit this.

[0037] In some optional embodiments, referring to Figure 2 The elastic body 30 can be set as a split structure, including a first elastic member 41 and a second elastic member 42. The first elastic member 41 is provided with a first cavity 410, which is connected to the outside of the first elastic member 41. The volume of the first cavity 410 can account for one-third to one-half of the first elastic member 41. It can be set according to the actual needs of the ball and pin assembly, and this embodiment does not limit this. The second elastic member 42 is provided with a second cavity 420, which is connected to the outside of the second elastic member 42. Similarly, the volume of the second cavity 420 can account for one-third to one-half of the second elastic member 42. It can be set according to the actual needs of the ball and pin assembly, and this embodiment does not limit this.

[0038] The first elastic member 41 is fixedly connected to the second elastic member 42, and the fixed connection method of the first elastic member 41 and the second elastic member 42 includes but is not limited to a fixing connection with a set screw, a fixing connection with a tightening sleeve, etc. In some embodiments, the first elastic member 41 and the second elastic member 42 are made of elastic rubber, and the first elastic member 41 and the second elastic member 42 are processed into an integral part through an elastic mold-joining process. After the first elastic member 41 and the second elastic member 42 are fixedly connected, the first cavity 410 of the first elastic member 41 and the second cavity 420 of the second elastic member 42 are interconnected to form a cavity 301 for filling with lubricating fluid. In this embodiment, the elastomer 30 is set to a split structure, and the cavity 301 is formed by connecting the first cavity 410 and the second cavity 420, which is more convenient for the processing and molding of the cavity 301.

[0039] In some optional embodiments, referring to Figure 2 , the first elastic member 41 is provided with an opening for injecting lubricating liquid into the cavity 301, or the second elastic member 42 is provided with an opening for injecting lubricating liquid into the cavity 301, or both the first elastic member 41 and the second elastic member 42 are provided with openings for injecting lubricating liquid into the cavity 301. If only the first elastic member 41 or the second elastic member 42 is provided with openings, the number of openings is relatively small, which is easier to process; if the first elastic member 41 or the second elastic member 42 is provided with openings, the number of openings is relatively large, which is more helpful to speed up the injection speed of lubricating liquid and improve efficiency. In addition, the structural shape of the opening can be any shape such as circular, elliptical, square, rectangular, etc., which is not limited by this embodiment.

[0040] In some optional embodiments, referring to Figure 2 The elastic body 30 also includes a sealing member 43, which can be a rubber plug, etc. The sealing member 43 is inserted into the opening and has an interference fit with the opening, thereby sealing the opening to prevent the lubricating fluid in the cavity 301 from leaking from the opening.

[0041] In some optional embodiments, referring to Figure 1 and Figure 2 The elastic body 30 is provided with a first abutting surface 51 on the side close to the ball head 21, and the first abutting surface 51 abuts against the surface of the ball head 21. Since the surface of the ball head 21 is an arc surface, the first abutting surface 51 is also set as an arc surface to ensure that the elastic body 30 can fully abut against the ball head 21 and ensure the stability of the ball pin assembly during the working process. It should be noted that the first abutting surface 51 can be the entire surface of the elastic body 30 close to the ball head 21 to achieve a better covering effect on the ball head 21.

[0042] In some optional embodiments, referring to Figure 1 and Figure 2 A second abutting surface 52 is provided on the side of the elastomer 30 away from the ball head 21, and the second abutting surface 52 abuts against the cover body 6. Since most of the surface of the cover body 6 is a planar structure, the second abutting surface 52 is set as a planar structure to ensure that the elastomer 30 can fully abut against the cover body 6, thereby improving the stability of the elastomer 30 in the shell 1.

[0043] An embodiment of the utility model further provides a suspension system, comprising the ball and pin assembly described in any one of the above items.

[0044] In this embodiment, the suspension system is located between the vehicle body, the frame and the wheel. Its main function is to transfer the force and torque acting between the wheel and the frame, to buffer the impact force transmitted to the frame or the vehicle body by the uneven road surface, and to attenuate the vibration caused thereby, so as to ensure that the vehicle can run smoothly. The suspension system includes any of the aforementioned ball and pin assemblies, and also includes a control arm, a steering knuckle, a shock absorber, a suspension spring, etc. The control arm is connected between the wheel and the frame through the ball and pin assembly, and is used to transfer the force and torque between the wheel and the frame. The ball and pin assembly is also connected to the steering knuckle, which is an important component connecting the wheel and the steering system. The ball and pin assembly ensures that the wheel can rotate freely when turning. The suspension system adopts the ball and pin assembly in the aforementioned embodiment, which helps to control the overall cost of the suspension system and reduce the difficulty of designing and processing the suspension system.

[0045] An embodiment of the utility model further provides a vehicle, comprising the aforementioned suspension system.

[0046] In this embodiment, the vehicle can be a fuel vehicle or an electric vehicle. The vehicle adopts the aforementioned suspension system, which helps to control the overall cost of the vehicle and reduce the difficulty of designing and processing the vehicle.

[0047] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball pin assembly, characterized in that: It comprises a housing (1), a ball pin (2) and a ball seat (3); The ball seat (3) is arranged in the housing (1), and the ball pin (2) comprises a ball head (21) and a pin rod (22) connected to each other, the ball head (21) is arranged in the ball seat (3), and the pin rod (22) extends out of the housing (1); At least a portion of the ball seat (3) is an elastomer (30), a cavity (301) is provided inside the elastomer (30), and the cavity (301) is filled with lubricating liquid. The lubricating liquid continuously precipitates between the ball head (21) and the ball seat (3) through the molecular gaps of the elastomer (30).

2. The ball pin assembly according to claim 1, characterized in that: The ball seat (3) is a split structure, comprising an upper ball seat (31) and a lower ball seat (32); The upper ball seat (31) is arranged on a side of the ball head (21) close to the pin rod (22), and the lower ball seat (32) is arranged on a side of the ball head (21) away from the pin rod (22); The elastic body (30) forms the lower ball seat (32).

3. The ball pin assembly according to claim 1, characterized in that: The elastic body (30) comprises a first elastic member (41) and a second elastic member (42); The first elastic member (41) is provided with a first cavity (410), and the first cavity (410) is communicated with the outside of the first elastic member (41); The second elastic member (42) is provided with a second cavity (420), and the second cavity (420) is communicated with the outside of the second elastic member (42); The first elastic member (41) and the second elastic member (42) are fixedly connected, and the first cavity (410) and the second cavity (420) are interconnected to form the cavity (301).

4. The ball and pin assembly according to claim 3, characterized in that: The first elastic member (41) and / or the second elastic member (42) are provided with openings, and the openings are used to inject lubricating liquid into the cavity (301).

5. The ball and pin assembly according to claim 4, characterized in that: The elastic body (30) further comprises a blocking piece (43), wherein the blocking piece (43) is inserted into the opening and is interference-fitted with the opening.

6. The ball and pin assembly according to claim 2, characterized in that: A first abutting surface (51) is provided on a side of the elastic body (30) close to the ball head (21), the first abutting surface (51) abuts against the ball head (21), and the first abutting surface (51) is an arc surface.

7. The ball and pin assembly according to claim 2, characterized in that: Also includes a cover body (6); The cover body (6) is disposed inside the shell (1) and is fixedly connected to the shell (1); the lower ball seat (32) is disposed inside the cover body (6).

8. The ball and pin assembly according to claim 7, characterized in that: A second abutting surface (52) is provided on a side of the elastic body (30) away from the ball head (21), the second abutting surface (52) abuts against the cover body (6), and the second abutting surface (52) is a plane.

9. A suspension system, characterized in that: A ball and pin assembly comprising any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the suspension system of claim 9.

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