Novel bushing structure

Abstract

The utility model belongs to the field of automobile part structures, and discloses a novel lining structure. Comprising a bushing inner pipe and a bushing outer pipe arranged on the periphery of the bushing inner pipe, a rubber bushing is arranged between the bushing inner pipe and the bushing outer pipe, and a bushing groove is longitudinally formed in the rubber bushing. According to the rubber bushing, the bushing groove is formed in the rubber bushing, the problems that if the radial rigidity of an existing bushing needs to be reduced, only the rubber thickness can be reduced, and meanwhile the reduction amplitude of the axial rigidity is large are solved, the radial rigidity can be changed by extruding the bushing groove, the thickness of the rubber bushing cannot be changed, and the change amplitude of the axial rigidity is small.

Description

Technical Field

[0001] The invention relates to a novel bushing structure and belongs to the field of automobile component structures. Background Art

[0002] The automotive bushing structure is mainly used to support the engine and transmission, and to buffer the vibration caused by the engine to the vehicle body, thereby improving the driving experience. The stiffness of the entire rubber set is an important component that affects the smoothness of the vehicle's ride, handling stability, and braking performance. Figure 1 As shown, the existing bushing structure is subjected to radial compression, and the axial stiffness is also reduced, the ratio of radial and axial stiffness changes, the shock absorption effect is reduced, and the driving experience is also affected. Utility Model Content

[0003] The purpose of the utility model is to provide a novel bushing structure. By opening a longitudinal bushing groove on the bushing rubber, the opening size of the bushing groove can be changed by radial compression, thereby adjusting the radial stiffness. While changing the radial stiffness, the thickness of the bushing rubber changes little, reducing the variation range of its axial stiffness, thereby improving not only the shock absorbing effect of the bushing structure, but also its service life.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a new type of bushing structure, including a bushing inner tube and a bushing outer tube arranged on its outer periphery, a rubber bushing is arranged between the two, and a bushing groove is arranged on the rubber bushing, and the bushing groove is arranged longitudinally.

[0005] According to the utility model, further, the upper surface of the rubber bushing has an annular structural groove, the bushing groove starts from the bottom of the annular structural groove and extends vertically downward to the bottom of the rubber bushing.

[0006] According to the utility model, further, there are multiple bushing grooves, which are evenly distributed along the circumference of the rubber bushing axis.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. The utility model solves the problem that if the radial stiffness of the existing bushing is to be reduced, the rubber thickness can only be reduced, and the axial stiffness is greatly reduced by arranging a bushing groove in the rubber bushing. By squeezing the bushing groove, the radial stiffness can be changed, the thickness of the rubber bushing will not change, and the axial stiffness changes slightly.

[0009] 2. The utility model can also adjust the ratio of radial stiffness to axial stiffness according to automobile performance requirements and meet different outer diameter reduction amounts. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a structural schematic diagram of an existing new type of bushing structure;

[0011] Figure 2 It is a structural schematic diagram of a novel bushing structure of the utility model;

[0012] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0013] Figure 4 This is a structural schematic diagram of a novel bushing structure of the utility model in a compressed state;

[0014] Figure 5 for Figure 4 Schematic diagram of the top view structure.

[0015] In the figure: 1-bushing inner tube, 2-bushing outer tube, 3-bushing rubber, 31-annular structural groove, 32-bushing groove. DETAILED DESCRIPTION

[0016] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0017] like Figure 2-5 As shown, a new type of bushing structure of the utility model includes a bushing inner tube 1, a bushing outer tube 2 is arranged on the outer periphery of the bushing inner tube 1, a bushing rubber 3 that can play a buffering role is arranged between the two, and the upper surface of the bushing rubber 3 has an annular structure groove 31. When the bushing rubber 3 is subjected to external force, the radial stiffness of the bushing rubber 3 changes, but at the same time, the bushing rubber 3 will become thinner and the axial deformation will be larger, which will affect the axial stiffness of the bushing rubber 3 and reduce the service life of the bushing. In order to solve the problem of the reduction of axial stiffness, a bushing groove 32 is arranged in the bushing rubber 3, and the bushing groove 32 is multiple and distributed along the circumference of the axis of the bushing rubber 3. The bushing groove 32 is arranged longitudinally, starting from the bottom of the annular structure groove 31, and extending downward to the bottom of the bushing rubber 3. When it is necessary to reduce the radial stiffness, it is only necessary to reduce the opening of the bushing groove 32 without changing the thickness of the bushing rubber 3, so as to achieve a rapid reduction in the radial stiffness of the rubber bushing and reduce the influence on the axial stiffness.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel bushing structure, comprising a bushing inner tube and a bushing outer tube arranged on the outer periphery thereof, with a rubber bushing arranged between the two, characterized in that: The rubber bushing is provided with a bushing groove, which is arranged longitudinally; there are multiple bushing grooves, which are evenly distributed along the circumference of the axis of the rubber bushing; The upper surface of the rubber bushing is provided with an annular structural groove, the bushing groove starts from the bottom of the annular structural groove and vertically extends downward to the bottom of the rubber bushing.

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