Wear-resistant high-stability motorcycle rear damping rocker arm

Abstract

The utility model relates to a wear-resistant high-stability motorcycle rear damping rocker arm which comprises a rocker arm body, the whole rocker arm body is double rocker arms, the front end of the rocker arm body is provided with a front connecting part used for being connected with a frame, and the rear end of the rocker arm body is provided with a rear connecting part used for being connected with a rear wheel. The two sides of the rocker arm body are each provided with a first reinforcing arm, a second reinforcing arm and a supporting support, the two first reinforcing arms are fixedly connected with the corresponding second reinforcing arms, and the ends, away from the rocker arm body, of the two supporting supports are arranged on the corresponding second reinforcing arms. The ends, away from the corresponding second reinforcing arms, of the two supporting supports are arranged at the joints of the first reinforcing arms and the rocker arm body. The first reinforcing arm and the second reinforcing arm can effectively disperse stress and reduce the possibility of local stress concentration, and the supporting bracket can reduce the possibility of deformation or damage caused by stress concentration at the joint of the first reinforcing arm and the rocker arm main body; therefore, the driving stability of the rear rocker arm is improved through more uniform stress distribution.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle accessories, in particular to a wear-resistant and highly stable motorcycle rear shock absorber swing arm. Background Art

[0002] The rear swing arm of a motorcycle is one of the important components of the motorcycle. It is used to connect the rear wheel and the frame: As a key connecting component, the rear swing arm firmly connects the rear wheel of the motorcycle to the frame, ensuring that the rear wheel can work stably during driving and effectively transmitting power to the ground.

[0003] The utility model with the publication number CN207157402U provides a motorcycle rear swing arm device integrally formed by liquid forging, which is used to solve the technical problem of improving the structural strength and reliability of the motorcycle rear swing arm. It includes a rear swing arm, a shock absorber lug and a pivot. The rear swing arm includes a left arm and a right arm. Both the left arm and the right arm adopt a U-shaped structure. The shock absorber lug is installed below the front part of the rear swing arm, and the pivot is arranged at the front end of the rear swing arm.

[0004] For the motorcycle rear swing arm in the above technical solution, the cross-section of its rear end on the side where it is installed with the rear wheel is approximately square, and no support structure member is provided, resulting in low structural stability of the rear swing arm. When it bears a large impact force or torsion, it is easy to deform, thus affecting the driving stability of the motorcycle. Summary of the Utility Model

[0005] In order to improve the driving stability of the rear swing arm, the present application provides a wear-resistant and highly stable motorcycle rear shock absorber swing arm.

[0006] The wear-resistant and highly stable motorcycle rear shock absorber swing arm provided by the present application adopts the following technical solution:

[0007] A wear-resistant and highly stable motorcycle rear shock absorber swing arm includes a swing arm main body. The swing arm main body is an overall double swing arm. The front end of the swing arm main body is provided with a front connection part for connecting with the frame, and the rear end of the swing arm main body is provided with a rear connection part for connecting with the rear wheel. Both sides of the swing arm main body are provided with a first reinforcing arm, a second reinforcing arm and a support bracket. The two first reinforcing arms are respectively fixedly connected to the corresponding second reinforcing arms. One end of the two support brackets far away from the swing arm main body is fixedly connected to the corresponding second reinforcing arm, and one end of the two support brackets far away from the corresponding second reinforcing arm is fixedly connected to the connection part between the first reinforcing arm and the swing arm main body.

[0008] By adopting the above technical solutions, by providing the first reinforcing arm and the second reinforcing arm, stress can be effectively dispersed, reducing the possibility of local stress concentration. By providing the support bracket, the possibility of deformation or damage due to stress concentration at the connection between the first reinforcing arm and the swing arm body can be reduced; that is, by distributing stress more evenly, the driving stability of the rear swing arm can be improved.

[0009] Preferably, the first reinforcing arm, the second reinforcing arm and the swing arm body are arranged in a triangular structure.

[0010] By adopting the above technical solutions, the triangular structure has good mechanical stability. By arranging the first reinforcing arm, the second reinforcing arm and the swing arm body in a triangular structure, stress can be effectively dispersed, improving the bending and torsional resistance of the rear swing arm and providing stable rear wheel support for the motorcycle.

[0011] Preferably, a connection bracket is provided between the two second reinforcing arms, and the two ends of the connection bracket are arranged in a gradually expanding shape from the side far away from the second reinforcing arm to the side close to the second reinforcing arm.

[0012] By adopting the above technical solutions, the connection bracket can reinforce the structure of the two second reinforcing arms, improve the torsional resistance of the rear swing arm, reduce the possibility of deformation or damage of the two second reinforcing arms or the swing arm body, maintain the stable positioning of the wheel, and improve the driving safety and stability.

[0013] Preferably, the connection bracket is arranged in a "U" - shaped structure.

[0014] By adopting the above technical solutions, when the "U" - shaped structure bears various forces of the wheel, it can effectively disperse stress, ensuring that the rear swing arm is not easily deformed or damaged during long - term use; during the driving process of the motorcycle, the "U" - shaped structure can resist torsional force, maintain the stable positioning of the swing arm body and the wheel, and improve the driving safety and stability.

[0015] Preferably, it further includes an adjusting member. The adjusting member is used to adjust the position of the rear wheel axle on the rear connection part. A sliding groove and a first avoidance groove are respectively formed on the rear connection part. The rear wheel axle is slidably connected in the first avoidance groove. A sliding block is slidably connected in the sliding groove, and the sliding block is fixedly connected to the rear wheel axle. The adjusting member is used to adjust the position of the sliding block in the sliding groove.

[0016] By adopting the above technical solutions, by adjusting the position of the sliding block in the sliding groove through the adjusting member, the position of the rear wheel axle on the rear connection part can be adjusted. When the position of the rear wheel axle is adjusted towards the side away from the front connection part, the wheelbase between the front and rear wheel axles of the motorcycle can be adjusted, improving the driving stability.

[0017] Preferably, a cavity is formed in the swing arm body, a support wear-resistant block is arranged in the cavity, a second avoidance groove is arranged on the support wear-resistant block, and the rear wheel axle is simultaneously slidably connected to the first avoidance groove and the second avoidance groove.

[0018] By adopting the above technical solution, by forming a cavity in the swing arm body to make the swing arm body hollow, the overall weight of the motorcycle can be reduced, and the inertia of the rear swing arm can be reduced, thereby improving the driving stability of the rear swing arm.

[0019] Preferably, the adjusting member includes a bolt, an adjusting groove is formed in the sliding block, the bolt is slidably connected in the adjusting groove, and the bolt passes through the adjusting groove and is threadedly connected to the rear connecting portion.

[0020] By adopting the above technical solution, after loosening the bolt, the position of the sliding block in the sliding groove and the position of the rear wheel axle in the first avoidance groove can be adjusted; after tightening the bolt, the position of the sliding block in the sliding groove and the position of the rear wheel axle in the first avoidance groove can be limited, which is convenient for adjusting the position of the rear wheel axle on the rear connecting portion.

[0021] The technical effects of the present utility model are mainly reflected in the following aspects:

[0022] 1. By providing the first reinforcing arm and the second reinforcing arm in the present utility model, the stress can be effectively dispersed, and the possibility of local stress concentration can be reduced. By providing the support bracket, the possibility of deformation or damage due to stress concentration at the connection between the first reinforcing arm and the swing arm body can be reduced; that is, by more evenly distributing the stress, the driving stability of the rear swing arm can be improved;

[0023] 2. By providing the connection bracket in the present utility model, the structure of the two second reinforcing arms can be strengthened, the torsional resistance of the rear swing arm can be improved, the possibility of deformation or damage of the two second reinforcing arms or the swing arm body can be reduced, the stable positioning of the wheels can be maintained, and the driving safety and stability can be improved;

[0024] 3. By providing the adjusting member in the present utility model, the position of the sliding block on the sliding groove is adjusted through the adjusting member, so as to adjust the position of the rear wheel axle on the rear connecting portion. When the position of the rear wheel axle is adjusted towards the side away from the front connecting portion, the wheelbase between the front and rear wheel axles of the motorcycle can be adjusted, and the driving stability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the mechanism after the present application is connected to the rear wheel.

[0027] Figure 3 It is alongFigure 2 Enlarged view at position A in the figure.

[0028] Figure 4 It is a schematic structural diagram of the adjusting part in the embodiment of the present application.

[0029] Explanation of reference numerals: 1, swing arm main body; 11, front connecting part; 12, rear connecting part; 13, sliding groove; 131, sliding block; 132, adjusting groove; 14, first avoidance groove; 15, cavity; 16, support wear-resistant block; 161, second avoidance groove; 2, first strengthening arm; 3, second strengthening arm; 4, support bracket; 5, connecting bracket; 6, adjusting part; 61, bolt; 7, rear wheel axle. Detailed implementation manners

[0030] The following will Figures 1-4 further describe the present application in detail to make the technical solution of the present application easier to understand and master.

[0031] The embodiment of the present application discloses a wear-resistant and highly stable rear shock absorber swing arm for a motorcycle.

[0032] Referring to Figure 1 , Figure 2 and Figure 4 , a wear-resistant and highly stable rear shock absorber swing arm for a motorcycle in this embodiment includes a swing arm main body 1. The swing arm main body 1 is a double swing arm as a whole. The front end of the swing arm main body 1 is provided with a front connecting part 11 for connecting with the vehicle frame, and the rear end of the swing arm main body 1 is provided with a rear connecting part 12 for connecting with the rear wheel. Both sides of the swing arm main body 1 are fixedly connected with a first strengthening arm 2, a second strengthening arm 3 and a support bracket 4. The two first strengthening arms 2 are respectively fixedly connected with the corresponding second strengthening arms 3, and a triangular structure is formed between the first strengthening arm 2, the second strengthening arm 3 and the swing arm main body 1; One end of the two support brackets 4 far from the swing arm main body 1 is fixedly connected to the corresponding second strengthening arm 3, and one end of the two support brackets 4 far from the corresponding second strengthening arm 3 is fixedly connected to the connection part of the first strengthening arm 2 and the swing arm main body 1.

[0033] Referring to Figure 1 , Figure 2 and Figure 4 , by setting the first strengthening arm 2 and the second strengthening arm 3, the stress can be effectively dispersed, and the possibility of local stress concentration can be reduced. By setting the support bracket 4, the possibility of deformation or damage due to stress concentration at the connection part of the first strengthening arm 2 and the swing arm main body 1 can be reduced; that is, by more evenly distributing the stress, the driving stability of the rear swing arm can be improved. Moreover, the triangular structure has good stability in mechanics. By setting a triangular structure between the first strengthening arm 2, the second strengthening arm 3 and the swing arm main body 1, the stress can be effectively dispersed, and the bending and torsion resistance of the rear swing arm can be improved, providing stable rear wheel support for the motorcycle.

[0034] Refer to Figure 1 、 Figure 2 and Figure 4 ,A connecting bracket 5 is fixedly connected between two second reinforcing arms 3. The two ends of the connecting bracket 5 are arranged in a gradually expanding shape from the side far away from the second reinforcing arm 3 to the side close to the second reinforcing arm 3. And the connecting bracket 5 is arranged in a "U" shape structure. The connecting bracket 5 can reinforce the structures of the two second reinforcing arms 3, improve the anti-torsion force of the rear swing arm, reduce the possibility of deformation or damage of the two second reinforcing arms 3 or the swing arm main body 1, maintain the stable positioning of the wheel, and improve the driving safety and stability. When the "U" shape structure bears various forces of the wheel, it can effectively disperse the stress, ensuring that the rear swing arm is not easily deformed or damaged during long-term use; during the driving process of the motorcycle, the "U" shape structure can resist the torsion force, maintain the stable positioning of the swing arm main body 1 and the wheel, and improve the driving safety and stability.

[0035] Refer to Figures 1-4 ,It further includes an adjusting member 6. The adjusting member 6 is used to adjust the position of the rear wheel axle 7 on the rear connecting part 12. Sliding grooves 13 and first avoiding grooves 14 are respectively formed on the rear connecting parts 12 on both sides of the swing arm main body 1. A cavity 15 is formed inside the swing arm main body 1. Support wear-resistant blocks 16 are respectively and fixedly connected inside the two cavities 15. Second avoiding grooves 161 are respectively formed on the two support wear-resistant blocks 16. The two ends of the axis of the rear wheel axle 7 are respectively slidably connected to the first avoiding grooves 14 and the second avoiding grooves 161 on both sides. By forming a cavity 15 inside the swing arm main body 1, the swing arm main body 1 is arranged in a hollow shape, which can reduce the overall weight of the motorcycle and can also reduce the inertia of the rear swing arm, thereby improving the driving stability of the rear swing arm.

[0036] Refer to Figures 1-4 ,Taking the rear connecting part 12 on one side as an example: A sliding block 131 is slidably connected inside the sliding groove 13. The sliding block 131 is fixedly connected to the rear wheel axle 7. The adjusting member 6 is used to adjust the position of the sliding block 131 inside the sliding groove 13. The adjusting member 6 includes a bolt 61. An adjusting groove 132 is formed on the sliding block 131. The bolt 61 is slidably connected inside the adjusting groove 132, and the bolt 61 passes through the adjusting groove 132 and is threadedly connected to the rear connecting part 12.

[0037] Refer to Figures 1-4, the position of the sliding block 131 on the sliding groove 13 is adjusted by the adjusting member 6, so as to adjust the position of the rear wheel axle 7 on the rear connecting portion 12. After the position of the rear wheel axle 7 is adjusted towards the side away from the front connecting portion 11, the wheelbase between the front and rear wheel axles 7 of the motorcycle can be adjusted, and the driving stability can be improved. After the bolt 61 is loosened, the position of the sliding block 131 in the sliding groove 13 and the position of the rear wheel axle 7 in the first avoidance groove 14 can be adjusted; after the bolt 61 is tightened, the position of the sliding block 131 in the sliding groove 13 and the position of the rear wheel axle 7 in the first avoidance groove 14 can be limited, which is convenient for adjusting the position of the rear wheel axle 7 on the rear connecting portion 12.

[0038] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. A wear-resistant and highly stable motorcycle rear shock absorber swing arm, including a swing arm main body (1), the swing arm main body (1) is an overall double swing arm, characterized in that: The front end of the rocker arm body (1) is provided with a front connection part (11) for connecting with the vehicle frame, the rear end of the rocker arm body (1) is provided with a rear connection part (12) for connecting with the rear wheel, both sides of the rocker arm body (1) are provided with a first reinforcing arm (2), a second reinforcing arm (3) and a support bracket (4), the two first reinforcing arms (2) are respectively fixedly connected with the corresponding second reinforcing arms (3), one end of the two support brackets (4) far away from the rocker arm body (1) is fixedly connected to the corresponding second reinforcing arm (3), and one end of the two support brackets (4) far away from the corresponding second reinforcing arm (3) is fixedly connected to the connection part of the first reinforcing arm (2) and the rocker arm body (1).

2. The wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 1, wherein: The first reinforcing arm (2), the second reinforcing arm (3) and the rocker arm body (1) are arranged in a triangular structure.

3. The wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 2, wherein: A connection bracket (5) is arranged between the two second reinforcing arms (3), and both sides of the two ends of the connection bracket (5) from far away from the second reinforcing arm (3) to close to the second reinforcing arm (3) are arranged in a gradually expanding shape.

4. A wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 3, characterized in that: The connection bracket (5) is arranged in a "U" - shaped structure.

5. A wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 1, characterized in that: It further includes an adjusting part (6), the adjusting part (6) is used for adjusting the position of the rear wheel axle (7) on the rear connection part (12), a sliding groove (13) and a first avoiding groove (14) are respectively formed on the rear connection part (12), the rear wheel axle (7) is slidably connected in the first avoiding groove (14), a sliding block (131) is slidably connected in the sliding groove (13), the sliding block (131) is fixedly connected to the rear wheel axle (7), and the adjusting part (6) is used for adjusting the position of the sliding block (131) in the sliding groove (13).

6. The wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 5, characterized in that: A cavity (15) is formed in the rocker arm body (1), a support wear - resistant block (16) is arranged in the cavity (15), a second avoiding groove (161) is arranged on the support wear - resistant block (16), and the rear wheel axle (7) is simultaneously slidably connected to the first avoiding groove (14) and the second avoiding groove (161).

7. A wear-resistant and highly stable motorcycle rear shock absorber swing arm according to claim 5, characterized in that: The adjusting part (6) includes a bolt (61), an adjusting groove (132) is formed on the sliding block (131), the bolt (61) is slidably connected in the adjusting groove (132), and the bolt (61) passes through the adjusting groove (132) and is threadedly connected to the rear connection part (12).

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