Bushing structure of shock absorber

Abstract

The utility model discloses a shock absorber bushing structure which comprises an inner lining body and an outer lining body sleeved outside the inner lining body, a rubber layer is arranged between the outer wall of the inner lining body and the inner wall of the outer lining body, the rubber layer is an elastic body made of vulcanized rubber materials, and a deformation space is arranged on the rubber layer. The deformation space penetrates through the two ends of the rubber layer in the axial direction of the lining body, the section of the deformation space comprises two circular channels, the two circular channels are communicated through an arc-shaped channel, and arc-shaped transition faces are arranged at the joints of the arc-shaped channel and the circular channels at the two ends. According to the lining structure installed on the automobile chassis shock absorber, the deformation space is arranged on the elastic body between the inner lining body and the outer lining body, the space and the amplitude of radial deformation are increased, deflection deformation is reduced, the diameter shrinkage amount is increased, meanwhile, the arc design is adopted in the deformation space, and the elastic body is prevented from being cracked and damaged in the extrusion process.

Description

Technical Field

[0001] The utility model relates to the field of shock absorbers, in particular to a bushing structure of a shock absorber. Background Art

[0002] In the field of mechanical structure, it is often necessary to install two movable parts together. Because the mutual movement between parts will generate friction, the use of soft connections can reduce wear. At the same time, even if the wear causes damage, it is more convenient and cheaper to replace. Therefore, "industrial bushings" are used. The bushings on the car are mainly installed in the chassis shock absorber part, and these parts are connected by a rotating shaft. In order to reduce the mutual wear between the parts, a large number of bushings are used to connect the middle of the car's suspension system; in addition to reducing wear and easy replacement, the biggest function of the car bushing is that it also has a certain shock absorption function. With the complexity of road conditions and the particularity of usage scenarios, conventional shock absorber bushings can no longer meet high-strength and complex road conditions. With the increase in the deflection amplitude of the shock absorber and the increase in radial activity, conventional shock absorber bushings will experience elastomer cracking and greatly reduced durability.

[0003] Therefore, it is urgent to propose a new shock absorber bushing structure. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a shock absorber bushing structure to solve the above-mentioned defects in the prior art.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is:

[0006] A shock absorber bushing structure is provided, which includes an inner lining body and an outer lining body sleeved outside the inner lining body, a rubber layer is arranged between the outer wall of the inner lining body and the inner wall of the outer lining body, the rubber layer is an elastomer made of vulcanized rubber, a deformation space is arranged on the rubber layer, and the deformation space passes through both ends of the rubber layer along the axial direction of the inner lining body, the cross-section of the deformation space includes two circular channels, the two circular channels are connected by an arc channel, and an arc transition surface is arranged at the connection between the arc channel and the circular channels at both ends.

[0007] Furthermore, the surfaces of the inner lining body and the outer lining body are both provided with an adhesive layer connected to the rubber layer, a connecting countersunk hole is opened on the outer wall of the inner lining body, and a protrusion is provided on the rubber layer, and the protrusion is connected to the countersunk hole.

[0008] Furthermore, connecting flanges are provided at both ends of the lining body, a convex ring is provided on the inner side of the connecting flange, and a sink matched with the convex ring is provided on the inner wall at both ends of the lining body.

[0009] Furthermore, a protective sleeve is provided between the end of the outer lining body and the end of the inner lining body, the rubber layer is located inside the protective sleeve, and the movement of the protective sleeve is greater than the deformation of the rubber layer.

[0010] Furthermore, a limiting boss cooperating with the locking bolt is arranged inside the lining body.

[0011] Furthermore, two deformation spaces are provided, and the two deformation spaces are symmetrically distributed on the elastic body.

[0012] The beneficial effects of the utility model are as follows: as a bushing structure installed on the shock absorber of the automobile chassis, the scheme increases the space and amplitude of radial deformation, reduces the yaw deformation, and increases the shrinkage by setting a deformation space on the elastic body between the inner lining body and the outer lining body. At the same time, an arc design is adopted inside the deformation space to avoid cracking and damage of the elastic body caused by the extrusion process. The entire rubber layer is firmly connected to the inner lining body and the outer lining body, and the protective cover can effectively protect the rubber layer to avoid the deposition of impurities or damage. The entire bushing structure is easy to assemble and can be assembled quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the shock absorber bushing structure.

[0014] Figure 2 It is a top view of the rubber layer.

[0015] Among them, 1. inner lining body, 2. protective cover, 3. outer lining body, 4. rubber layer, 5. adhesive layer, 6. limiting boss, 7. protruding part, 8. circular channel, 9. arc channel, 10. connecting flange, 11. convex ring. DETAILED DESCRIPTION

[0016] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0017] like Figure 1 and Figure 2As shown, a shock absorber bushing structure includes an inner lining body 1 and an outer lining body 3 sleeved outside the inner lining body 1, a rubber layer 4 is arranged between the outer wall of the inner lining body 1 and the inner wall of the outer lining body 3, the rubber layer 4 is an elastomer made of vulcanized rubber, a deformation space is arranged on the rubber layer 4, and the deformation space passes through both ends of the rubber layer 4 along the axial direction of the inner lining body 1, the cross-section of the deformation space includes two circular channels 8, the two circular channels 8 are connected by an arc channel 9, and an arc transition surface is arranged at the connection between the arc channel 9 and the circular channels 8 at both ends.

[0018] In this embodiment, two deformation spaces are provided, and the two deformation spaces are symmetrically distributed on the elastic body.

[0019] This scheme is a bushing structure installed on the automobile chassis shock absorber. By setting a deformation space on the elastomer between the inner lining body 1 and the outer lining body 3, the elastomer will enter the deformation space during the extrusion deformation process, thereby increasing the space and amplitude of radial deformation, reducing the yaw deformation, and increasing the shrinkage amount. At the same time, an arc design is adopted inside the deformation space to avoid cracking and damage of the elastomer caused by the extrusion process.

[0020] In this embodiment, the surfaces of the inner lining body 1 and the outer lining body 3 are both provided with an adhesive layer 5 connected to the rubber layer 4. The adhesive layer 5 can be set to a frosted structure to increase the stability of the connection. A connecting countersunk hole is opened on the outer wall of the inner lining body 1, and a protrusion 7 is provided on the rubber layer 4. The protrusion 7 is connected to the countersunk hole to further increase the stability of the rubber layer 4 and the inner lining body 1.

[0021] In this embodiment, connecting flanges 10 are provided at both ends of the lining body 1, a convex ring 11 is provided on the inner side of the connecting flange 10, and sinks cooperating with the convex ring 11 are provided on the inner walls at both ends of the lining body 1 to facilitate alignment and matching during the assembly process.

[0022] In this embodiment, a protective sleeve 2 is provided between the end of the outer lining body 3 and the end of the inner lining body 1, the rubber layer 4 is located in the protective sleeve 2, and the movement of the protective sleeve 2 is greater than the deformation of the rubber layer 4. The protective sleeve 2 can effectively protect the rubber layer 4 from depositing impurities or being damaged.

[0023] In this embodiment, a limiting boss 6 cooperating with the locking bolt is provided inside the lining body 1, which facilitates the cooperation between the locking bolt and the lining body 1 during the assembly process, reduces the degree of freedom of the locking bolt, and avoids mechanical friction.

Claims

1. A shock absorber bushing structure, characterized in that: It includes an inner lining body and an outer lining body sleeved outside the inner lining body, a rubber layer is arranged between the outer wall of the inner lining body and the inner wall of the outer lining body, the rubber layer is an elastomer made of vulcanized rubber, a deformation space is arranged on the rubber layer, and the deformation space passes through both ends of the rubber layer along the axial direction of the inner lining body, the cross-section of the deformation space includes two circular channels, the two circular channels are connected by an arc channel, and an arc transition surface is arranged at the connection between the arc channel and the circular channels at both ends.

2. The shock absorber bushing structure according to claim 1, characterized in that: The surfaces of the inner lining body and the outer lining body are both provided with an adhesive layer connected to the rubber layer, the outer wall of the inner lining body is provided with a connecting countersunk hole, the rubber layer is provided with a protruding part, and the protruding part is connected in the countersunk hole.

3. The shock absorber bushing structure according to claim 1, characterized in that: Both ends of the lining body are provided with connecting flanges, the inner side of the connecting flange is provided with a convex ring, and the inner walls of both ends of the lining body are provided with sinks matching with the convex ring.

4. The shock absorber bushing structure according to claim 1, characterized in that: A protective sleeve is arranged between the end of the outer lining body and the end of the inner lining body, the rubber layer is located in the protective sleeve, and the movement of the protective sleeve is greater than the deformation of the rubber layer.

5. The shock absorber bushing structure according to claim 1, characterized in that: A limiting boss matched with a locking bolt is arranged inside the lining body.

6. The shock absorber bushing structure according to claim 1, characterized in that: The deformation spaces are provided with two, and the two deformation spaces are symmetrically distributed on the elastic body.

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