Shock absorber fastening assembly, suspension system and vehicle

Abstract

The utility model discloses a shock absorber fastening assembly, a suspension system and a vehicle, and the shock absorber fastening assembly comprises a shock absorber, a fastening assembly and a fastening assembly, the fastener comprises a head part and a rod part which are connected with each other, and the rod part penetrates through the bushing and is in threaded connection with the mounting part; the first gasket is arranged on the periphery of the rod part in a sleeving mode and located between the lining and the head part, the first gasket is provided with a first side and a second side, the first side corresponds to the head part, the second side corresponds to the lining, the first side is arranged smoothly, and at least one of knurling, protruding points and tool marks is arranged on the second side; the friction coefficient of the first side is smaller than that of the second side. Therefore, on the premise that the structural design of the bushing, the fastener and the mounting piece is not changed, the fastener can be prevented from driving the bushing to rotate only by additionally arranging the first gasket, it is guaranteed that the shock absorber is located at the correct mounting position, and the shock absorber fastening assembly can be simpler and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a shock absorber fastening assembly, a suspension system and a vehicle. Background Art

[0002] With the development of science and technology, the application of vehicles is becoming more and more extensive. Vehicles are equipped with shock absorbers, whose main function is to control and reduce the vibration and impact caused by uneven road surfaces during driving, thereby improving driving smoothness and riding comfort.

[0003] In related technologies, when the bushing under the shock absorber is designed as a cantilever beam, the design of the shock absorber fastening assembly is not reasonable enough, which makes it easy to drive the shock absorber to rotate when connecting the shock absorber with other parts, thereby causing the position of the shock absorber relative to the surrounding parts to deviate. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a shock absorber fastening assembly that can prevent the fastener from driving the bushing to rotate, thereby ensuring that the shock absorber is in the correct installation position.

[0005] Another object of the present invention is to provide a suspension system.

[0006] Another object of the present invention is to provide a vehicle.

[0007] According to an embodiment of the utility model, the shock absorber fastening assembly includes: a shock absorber, which is provided with a bushing; a fastener, which includes a head and a rod connected to each other, the rod passing through the bushing and being threadedly connected to the mounting member; a first washer, the first washer is sleeved on the outer periphery of the rod and located between the bushing and the head, the first washer is provided with a first side and a second side, the first side corresponds to the head, and the second side corresponds to the bushing, the first side is smoothly provided, and the second side is provided with at least one of knurling, protrusions and knife marks, and the friction coefficient of the first side is smaller than the friction coefficient of the second side.

[0008] Therefore, by sleeved the first washer on the outer periphery of the rod and located between the bushing and the head, and setting the first side to be smooth, and setting the second side to be provided with at least one of knurling, protrusions and knife marks, the friction coefficient of the first side is smaller than the friction coefficient of the second side. In this way, without changing the structural design of the bushing, fastener and mounting part, only the first washer needs to be added to avoid the fastener driving the bushing to rotate, thereby ensuring that the shock absorber is in the correct installation position, and making the shock absorber fastening assembly simpler and more reliable.

[0009] In some examples of the present invention, the friction coefficient of the first side is μ1, the friction coefficient of the second side is μ2, μ1 and μ2 satisfy the relationship: μ1 satisfies the relationship: 0.1<μ1<0.16, μ2≥0.2.

[0010] In some examples of the present invention, the outer diameter of the first washer is D1, the outer diameter of the head is D2, and D1 and D2 satisfy the relationship: D1>D2.

[0011] In some examples of the present invention, the bushing is provided with an inner tube, one end of the inner tube corresponds to the second side, the outer diameter of the inner tube is D3, and D1 and D3 satisfy the relationship: D1>D3.

[0012] In some examples of the present invention, the shock absorber fastening assembly also includes: a second washer, the second washer is arranged on the outer periphery of the rod portion and is located between the bushing and the mounting member, the second washer is provided with a third side and a fourth side, the third side corresponds to the bushing, the fourth side corresponds to the mounting member, and the third side and the fourth side are both provided with at least one of knurling, protrusions and knife marks.

[0013] In some examples of the present invention, the friction coefficient of the third side is μ3, the friction coefficient of the fourth side is μ4, and μ3 and μ4 satisfy the relationship: μ3≥0.2, μ4≥0.2.

[0014] In some examples of the present invention, μ3 and μ4 satisfy the relationship: μ3=μ4.

[0015] In some examples of the present invention, the bushing is provided with an inner tube, the other end of the inner tube corresponds to the third side, the outer diameter of the inner tube is D3, the outer diameter of the second gasket is D4, and D3 and D4 satisfy the relationship: D4>D3.

[0016] A suspension system according to an embodiment of the present invention includes: the above-mentioned shock absorber fastening assembly.

[0017] A vehicle according to an embodiment of the present invention includes: the suspension system described above.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1is a schematic diagram of a shock absorber fastening assembly and a mounting member according to an embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of a shock absorber fastening assembly according to an embodiment of the present utility model;

[0022] Figure 3 yes Figure 2 Schematic diagram of area A in the middle;

[0023] Figure 4 is an exploded view of a shock absorber fastening assembly according to an embodiment of the present utility model;

[0024] Figure 5 is a schematic diagram of a shock absorber fastening assembly from another perspective according to an embodiment of the present utility model;

[0025] Figure 6 yes Figure 5 Schematic diagram of area B in the middle;

[0026] Figure 7 is an exploded view of a shock absorber fastening assembly according to an embodiment of the present utility model;

[0027] Figure 8 It is a partial cross-sectional view of a shock absorber fastening assembly according to an embodiment of the present utility model.

[0028] Reference numerals:

[0029] 100. Shock absorber fastening assembly; 200. Mounting piece;

[0030] 10. shock absorber; 11. bushing; 111. inner tube;

[0031] 20. Fastener; 21. Rod; 22. Head;

[0032] 30. First washer; 31. First side; 32. Second side;

[0033] 40. Second washer; 41. Third side; 42. Fourth side. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0035] Reference below Figures 1-8 A shock absorber fastening assembly 100 according to an embodiment of the present invention is described. The shock absorber fastening assembly 100 may be applied to a suspension system, and the suspension system may be applied to a vehicle.

[0036] Combine Figures 1-8As shown, the shock absorber fastening assembly 100 according to the present invention may mainly include: a shock absorber 10 , a fastener 20 and a first washer 30 .

[0037] Among them, the shock absorber 10 is provided with a bushing 11, the fastener 20 includes a head 22 and a rod 21 connected to each other, the rod 21 is passed through the bushing 11 and is threadedly connected to the mounting member 200, and the first washer 30 is sleeved on the outer periphery of the rod 21 and is located between the bushing 11 and the head 22. The first washer 30 is provided with a first side 31 and a second side 32. The first side 31 corresponds to the head 22, and the second side 32 corresponds to the bushing 11. The first side 31 is smoothly set, and the second side 32 is provided with at least one of knurling, bumps and knife marks. The friction coefficient of the first side 31 is smaller than the friction coefficient of the second side 32.

[0038] Specifically, the shock absorber 10 is provided with a bushing 11, and the fastener 20 includes a head 22 and a rod 21 connected to each other. Therefore, during assembly, it is only necessary to pass the rod 21 through the bushing 11, with the head 22 corresponding to the end surface of the bushing 11. After tightening, the rod 21 is threadedly connected to the mounting member 200, and the head 22 is aligned with the end surface of the bushing 11. This can achieve the connection between the bushing 11 and the mounting member 200 and complete the assembly of the shock absorber 10. The fastener 20 includes but is not limited to a bolt.

[0039] Considering that when the fastener 20 plays a tightening role, in the final stage of tightening, the head 22 of the fastener 20 fits against the end face of the bushing 11, the rotation of the fastener 20 will drive the rotation of the bushing 11, resulting in a deviation in the installation position of the shock absorber 10, which will affect the normal operation of the shock absorber 10.

[0040] By placing the first washer 30 between the bushing 11 and the head 22, with the first side 31 of the first washer 30 aligned with the head 22 and the second side 32 of the first washer 30 aligned with the bushing 11, the rod 21 can be sequentially passed through the first washer 30 and bushing 11 and threadedly connected to the mounting member 200. After being assembled, the first side 31 of the first washer 30 abuts the head 22, and the second side 32 of the first washer 30 abuts the bushing 11, allowing force to be transmitted between the bushing 11, the first washer 30, and the head 22.

[0041] The friction coefficient of the first side 31 is made smaller than that of the second side 32. The first side 31 is smooth to reduce the friction coefficient of the first side 31, and the second side 32 is provided with at least one of knurling, convex points, and knife marks to increase the friction coefficient of the second side 32. It should be noted that knurling, convex points, and knife marks are easy to process, and while increasing the friction coefficient of the second side 32, the structure of the first washer 30 can be simplified, thereby reducing the difficulty and cost of manufacturing the first washer 30.

[0042] In this way, the friction between the first side 31 and the head 22 can be made smaller than the friction between the second side 32 and the bushing 11. During the tightening process and the final stage, the fastener 20 can only rotate relative to the first washer 30, and the first washer 30 and the bushing 11 remain stationary due to the existence of a large friction force. This can solve the problem of the fastener 20 driving the bushing 11 to rotate during the tightening process, avoid deviation in the installation position of the shock absorber 10, and ensure that the shock absorber 10 is in the correct installation position.

[0043] It can be understood that, without changing the structural design of the bushing 11, the fastener 20 and the mounting member 200, it is only necessary to add a first washer 30 to avoid deviations in the installation position of the shock absorber 10, ensure that the shock absorber 10 is in the correct installation position, and make the shock absorber fastening assembly 100 simpler and more reliable.

[0044] Therefore, by sleeved the first washer 30 on the outer periphery of the rod 21 and located between the bushing 11 and the head 22, and the first side 31 is smoothly set, and the second side 32 is provided with at least one of knurling, bumps and knife marks, the friction coefficient of the first side 31 is smaller than the friction coefficient of the second side 32. In this way, without changing the structural design of the bushing 11, the fastener 20 and the mounting part 200, only the first washer 30 needs to be added to avoid the fastener 20 driving the bushing 11 to rotate, thereby ensuring that the shock absorber 10 is in the correct installation position, and making the shock absorber fastening assembly 100 simpler and more reliable.

[0045] In some embodiments of the present invention, the friction coefficient of the first side 31 is μ1, the friction coefficient of the second side 32 is μ2, and μ1 and μ2 satisfy the relationship: μ1 satisfies the relationship: 0.1<μ1<0.16, μ2≥0.2.

[0046] Specifically, the friction coefficient of the first side 31 can be set within a reasonable range, which can not only prevent the friction coefficient of the first side 31 from being too large, resulting in excessive friction between the first side 31 and the head 22, causing the head 22 to drive the first washer 30 to rotate, but also prevent the friction coefficient of the first side 31 from being too small, resulting in greater processing difficulty and cost for the first side 31. Therefore, under the premise of ensuring the normal operation of the shock absorber fastening assembly 100, the reliability of the shock absorber fastening assembly 100 can be further improved and the processing difficulty and cost of the shock absorber fastening assembly 100 can be reduced.

[0047] Furthermore, the friction coefficient of the second side 32 can be set within a reasonable range, which can effectively ensure that the friction between the second side 32 and the bushing 11 is large, so that the first washer 30 and the bushing 11 can remain relatively still in the final stage of tightening.

[0048] In this way, by limiting the friction coefficient of the first side 31 and the friction coefficient of the second side 32 , deviation in the installation position of the shock absorber 10 can be effectively avoided, ensuring that the shock absorber 10 is in the correct installation position.

[0049] Combine Figure 8 As shown, the outer diameter of the first washer 30 is D1, and the outer diameter of the head 22 is D2. D1 and D2 satisfy the relationship: D1>D2. Specifically, by setting the outer diameter of the first washer 30 larger than the outer diameter of the head 22, the head 22 is ensured to be in full contact with the first side 31 of the first washer 30 after assembly. This ensures a greater contact area between the head 22 and the first washer 30, resulting in more uniform force distribution and improved stability.

[0050] As shown in the accompanying figures, the bushing 11 is provided with an inner tube 111, one end of which corresponds to the second side 32. The outer diameter of the inner tube 111 is D3, and D1 and D3 satisfy the relationship: D1>D3. Specifically, by setting the outer diameter of the first gasket 30 to be larger than the outer diameter of the inner tube 111, the end of the inner tube 111 is ensured to be in full contact with the second side 32 of the first gasket 30 after assembly. This ensures a greater contact area between the end of the inner tube 111 and the first gasket 30, resulting in more uniform force distribution and improved stability.

[0051] Combine Figures 1-8 As shown, the shock absorber fastening assembly 100 may also include: a second washer 40, the second washer 40 is sleeved on the outer periphery of the rod 21 and is located between the bushing 11 and the mounting member 200, the second washer 40 is provided with a third side 41 and a fourth side 42, the third side 41 corresponds to the bushing 11, and the fourth side 42 corresponds to the mounting member 200, and the third side 41 and the fourth side 42 are both provided with at least one of knurling, protrusions and knife marks.

[0052] Specifically, considering that when the shock absorber 10 is compressed and rebounded up and down with wheel hop, the bushing 11 of the shock absorber 10 is prone to relative displacement with the mounting member 200, which may cause abnormal noise, breakage of the fastener 20 and other problems.

[0053] By disposing the second washer 40 between the bushing 11 and the mounting member 200, with the third side 41 aligned with the bushing 11 and the fourth side 42 aligned with the mounting member 200, the rod 21 can be sequentially passed through the first washer 30, bushing 11, and second washer 40, and then threadedly connected to the mounting member 200. After assembly, the third side 41 abuts against the bushing 11, and the fourth side 42 abuts against the mounting member 200, allowing force to be transmitted between the bushing 11, second washer 40, and mounting member 200.

[0054] Furthermore, by providing at least one of knurling, protrusions, and knife marks on both the third side 41 and the fourth side 42, a higher coefficient of friction can be achieved on both the third side 41 and the fourth side 42. It should be noted that knurling, protrusions, and knife marks are easy to manufacture, and while increasing the coefficient of friction on the third side 41 and the fourth side 42, the structure of the second washer 40 can be simplified, thereby reducing the difficulty and cost of manufacturing the second washer 40.

[0055] In this way, the friction between the bushing 11 and the second washer 40, as well as the friction between the second washer 40 and the mounting member 200 can be increased, thereby resisting external forces and making the mounting member 200, the second washer 40 and the bushing 11 move synchronously, avoiding the misalignment of the bushing 11 and the mounting member 200, and thus avoiding problems such as abnormal noise and breakage of the fastener 20, thereby improving working performance.

[0056] It is understandable that, without changing the structural design of the bushing 11, fastener 20 and mounting member 200, only the second washer 40 needs to be added to avoid problems such as abnormal noise and breakage of the fastener 20, making the shock absorber fastening assembly 100 simpler and more reliable.

[0057] Furthermore, the friction coefficient of the third side 41 is μ3, and the friction coefficient of the fourth side 42 is μ4, where μ3 and μ4 satisfy the relationship: μ3 ≥ 0.2, μ4 ≥ 0.2. This allows the friction coefficients of the third side 41 and the fourth side 42 to be set within a reasonable range, effectively ensuring high friction between the two sides of the second washer 40 and the bushing 11 and the mounting member 200, respectively. This allows the mounting member 200, the second washer 40, and the bushing 11 to move synchronously during the compression and rebound of the shock absorber 10 with wheel hop, preventing misalignment between the bushing 11 and the mounting member 200.

[0058] In some embodiments of the present invention, μ3 and μ4 satisfy the relationship: μ3 = μ4. Specifically, the friction coefficients of the third side 41 and the fourth side 42 can be set to be the same. This not only facilitates the production of the second washer 40 and reduces production costs while preventing misalignment between the bushing 11 and the mounting member 200, but also eliminates any requirements for the assembly direction of the second washer 40, reducing assembly difficulty and improving assembly efficiency.

[0059] Combine Figure 8 As shown, the bushing 11 is provided with an inner tube 111 , one end of the inner tube 111 corresponds to the third side 41 , the outer diameter of the inner tube 111 is D3 , the outer diameter of the second gasket 40 is D4 , and D3 and D4 satisfy the relationship: D4>D3.

[0060] Specifically, by setting the outer diameter of the second gasket 40 to be larger than the outer diameter of the inner tube 111, after assembly is completed, it can be ensured that the end of the inner tube 111 is in complete contact with the third side 41 of the second gasket 40, thereby ensuring the contact area between the end of the inner tube 111 and the second gasket 40, making the force more uniform and improving stability.

[0061] The suspension system according to the present invention may include the aforementioned shock absorber fastening assembly 100. Specifically, by applying the shock absorber fastening assembly 100 to the suspension system, not only the structural reliability of the suspension system can be improved, but also the NVH performance of the suspension system can be enhanced.

[0062] The vehicle according to the present invention includes the above-mentioned suspension system. Specifically, by applying the suspension system to the vehicle, the working performance of the vehicle can be improved, thereby enhancing the product competitiveness of the vehicle and improving the user experience.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0064] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shock absorber fastening assembly, characterized in that: include: A shock absorber (10), wherein the shock absorber (10) is provided with a bushing (11); A fastener (20), the fastener (20) comprising a head (22) and a stem (21) connected to each other, the stem (21) passing through the bushing (11) and being threadedly connected to the mounting member (200); A first washer (30), the first washer (30) is sleeved on the outer periphery of the rod (21) and is located between the bushing (11) and the head (22), the first washer (30) is provided with a first side (31) and a second side (32), the first side (31) corresponds to the head (22), the second side (32) corresponds to the bushing (11), the first side (31) is smoothly provided, the second side (32) is provided with at least one of knurling, protrusions and knife marks, and the friction coefficient of the first side (31) is smaller than the friction coefficient of the second side (32).

2. The shock absorber fastening assembly according to claim 1, characterized in that: The friction coefficient of the first side (31) is μ1, and the friction coefficient of the second side (32) is μ2. μ1 and μ2 satisfy the relationship: μ1 satisfies the relationship: 0.1<μ1<0.16, μ2≥0.

2.

3. The shock absorber fastening assembly according to claim 1, characterized in that: The outer diameter of the first gasket (30) is D1, the outer diameter of the head (22) is D2, and D1 and D2 satisfy the relationship: D1>D2.

4. The shock absorber fastening assembly according to claim 3, characterized in that: The bushing (11) is provided with an inner tube (111), one end of the inner tube (111) corresponds to the second side (32), the outer diameter of the inner tube (111) is D3, and D1 and D3 satisfy the relationship: D1>D3.

5. The shock absorber fastening assembly according to claim 1, characterized in that: Also includes: A second washer (40), the second washer (40) is sleeved on the outer periphery of the rod portion (21) and is located between the bushing (11) and the mounting member (200), the second washer (40) is provided with a third side (41) and a fourth side (42), the third side (41) corresponds to the bushing (11), the fourth side (42) corresponds to the mounting member (200), and the third side (41) and the fourth side (42) are both provided with at least one of knurling, protrusions and knife marks.

6. The shock absorber fastening assembly according to claim 5, characterized in that: The friction coefficient of the third side (41) is μ3, the friction coefficient of the fourth side (42) is μ4, and μ3 and μ4 satisfy the relationship: μ3 ≥ 0.2, μ4 ≥ 0.

2.

7. The shock absorber fastening assembly according to claim 6, characterized in that: μ3 and μ4 satisfy the relationship: μ3=μ4.

8. The shock absorber fastening assembly according to claim 5, characterized in that: The bushing (11) is provided with an inner tube (111), the other end of the inner tube (111) corresponds to the third side (41), the outer diameter of the inner tube (111) is D3, the outer diameter of the second gasket (40) is D4, and D3 and D4 satisfy the relationship: D4>D3.

9. A suspension system, characterized in that: include: The shock absorber fastening assembly (100) according to any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The suspension system of claim 9.

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