Wear-resistant rubber shock pad

Abstract

The utility model relates to the field of shock pads, and particularly discloses a wear-resistant rubber shock pad which comprises an annular pad body, a plurality of circles of protruding parts protruding towards the end face of the side away from the pad body are fixedly arranged on the end faces of the upper side and the lower side of the pad body, and the pad body is hollow and internally and fixedly provided with a plurality of circles of supporting grids. The protruding portion can increase friction force between the pad body and a part, meanwhile, the supporting grid arranged in the pad body generates certain deformation when bearing radial thrust while guaranteeing the supporting strength of the pad body, and the wrapping edge wraps the edge of the part, so that relative sliding between the pad body and the part is reduced, and the service life of the pad body is prolonged. Furthermore, the wear-resistant layer made of the polyurethane material can be used for improving the wear resistance of the shock pad.

Description

Technical Field

[0001] The utility model relates to the field of shock-absorbing pads, in particular to wear-resistant rubber shock-absorbing pads. Background Art

[0002] The characteristics of rubber shock-absorbing pads are that they have both high elasticity and high viscosity. They are mostly used for shock absorption between parts in mechanical equipment. For example, shock absorption between shaft parts requires the use of annular shock-absorbing pads to reduce axial vibration between shaft parts. However, during the operation of the equipment, there is not only axial vibration between the shaft parts, but also a certain vibration displacement in the radial direction. Traditional shock-absorbing pads are mostly made of rubber with a solid interior. Traditional shock-absorbing pads have already deformed under the axial extrusion of shaft parts. At this time, if they are subjected to radial vibration, the radial deformation of the traditional shock-absorbing pads may be insufficient. At this time, a relative sliding displacement occurs between the traditional shock-absorbing pads and the shaft parts. In the long run, the parts continuously form radial friction on the shock-absorbing pads, which causes severe wear of the shock-absorbing pads and reduces the service life of the shock-absorbing pads.

[0003] Therefore, it is necessary to design a wear-resistant rubber shock-absorbing pad to alleviate the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to provide a wear-resistant rubber shock-absorbing pad to overcome the above-mentioned defects in the prior art.

[0005] According to the utility model, the wear-resistant rubber shock-absorbing pad comprises an annular pad body, the upper and lower end faces of the pad body are fixed with a plurality of raised portions protruding away from the end face of one side of the pad body, the pad body is hollow inside and a plurality of support grids are fixed therein.

[0006] Through the above technical solution, the raised protrusions can increase the friction between the pad body and the components. At the same time, the support grid arranged inside the pad body can ensure the supporting strength of the pad body while producing a certain deformation when subjected to radial thrust, thereby reducing the relative sliding between the pad body and the components, and further reducing the friction loss of the components to the pad body.

[0007] Preferably, the raised portions on the upper and lower sides and the upper and lower end surfaces of the pad body are coated with a wear-resistant layer.

[0008] Through the above technical solution, the wear-resistant layer can increase the wear resistance of the raised portion and the surface of the pad body, and further increase the wear resistance of the shock-absorbing pad.

[0009] Preferably, the wear-resistant layer is one of a polyurethane coating, a nylon coating or a polytetrafluoroethylene coating.

[0010] Through the above technical solution, the wear-resistant layer can increase the wear resistance, tear resistance and elasticity of the surface of the shock-absorbing pad, and further improve the performance of the shock-absorbing pad.

[0011] Preferably, the plurality of support grids are all in an annular structure, and the plurality of support grids are arranged in an array with equal spacing from inside to outside with the axis of the cushion body as the center, and the support grids are arranged at an angle.

[0012] Through the above technical solution, the support strength inside the shock-absorbing pad is evenly distributed, ensuring that the force is more evenly distributed.

[0013] Preferably, the plurality of support grids are divided into an inner circle part and an outer circle part according to the number of circles, the plurality of support grids in the inner circle part are inclined outward from top to bottom to form an outer inclined support grid, and the plurality of support grids in the outer circle part are inclined inward from top to bottom to form an inner inclined support grid.

[0014] Through the above technical solution, the symmetrically inclined support grids of the inner and outer parts can limit the deformation of the cushion body within a certain range when it is deformed by radial vibration, thereby increasing the radial seismic performance of the cushion body.

[0015] Preferably, cavities are formed between adjacent outer oblique support grids and adjacent inner oblique support grids, and the cavities are filled with non-Newtonian fluid.

[0016] Through the above technical solution, the non-Newtonian fluid filled in the cavity can increase the hardness of the cushion body when it is subjected to sudden vibration, thereby increasing the supporting performance of the cushion body.

[0017] Preferably, both upper and lower end surfaces of the cushion body are fixedly provided with covering edges protruding in a direction away from the cushion body.

[0018] Through the above technical solution, the covering edge can cover the edge of the part, thereby further reducing the relative displacement between the part and the pad body.

[0019] The beneficial effects of the utility model are as follows: the raised protrusions can increase the friction between the pad body and the parts, and at the same time, the support grid arranged inside the pad body produces a certain deformation when subjected to radial thrust while ensuring the supporting strength of the pad body, and the edge of the parts is covered by the covering edge, thereby reducing the relative sliding between the pad body and the parts, thereby reducing the friction loss of the parts to the pad body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0023] In the figure:

[0024] 10. Pad body; 11. Covering edge; 12. Wear-resistant layer; 13. Support grid; 131. Outer oblique support grid; 132. Inner oblique support grid; 14. Cavity; 15. Protrusion. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model. As used in this article, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the wear-resistant rubber shock-absorbing pad are described in detail below:

[0027] An embodiment of the utility model:

[0028] Reference Figure 1-Figure 3The utility model provides a wear-resistant rubber shock-absorbing pad, including an annular pad body 10, and the upper and lower end surfaces of the pad body 10 are fixedly provided with a plurality of raised portions 15 that are raised toward the end surface of one side away from the pad body 10. The pad body 10 is hollow inside and is fixedly provided with a plurality of supported grids 13. The utility model prints the structure of the pad body 10, the supported grid 13, the raised portions 15 and the covering edge 11 through a multi-jet melting 3D printer. The multi-jet melting 3D printer uses pre-made rubber powder material to build parts layer by layer by heating and melting the powder particles. The raised portions 15 on the upper and lower sides and the upper and lower end surfaces of the pad body 10 are coated with a wear-resistant layer 12. The wear-resistant layer 12 is sprayed on the surface of the raised portions 15 and the pad body 10 to form a frosted surface. In this embodiment, the wear-resistant layer 12 is polyurethane The coating, a plurality of support grids 13 are all annular structures, a plurality of support grids 13 are arranged in an array with equal spacing from the inside to the outside with the axis of the pad body 10 as the center, the support grids 13 are arranged tilted, and a plurality of support grids 13 are divided into an inner circle part and an outer circle part according to the number of circles, a plurality of support grids 13 of the inner circle part tilt outward from top to bottom to form an outer inclined support grid 131, and a plurality of support grids 13 of the outer circle part tilt inward from top to bottom to form an inner inclined support grid 132, and cavities 14 are formed between adjacent outer inclined support grids 131 and adjacent inner inclined support grids 132, and the cavities 14 are filled with non-Newtonian fluid. When the structure of the support grid 13 is about to be printed, the non-Newtonian fluid is injected into the cavity 14, and the upper and lower end surfaces of the pad body 10 are fixed with a covering edge 11 protruding in the direction away from the pad body 10.

[0029] When the pad body 10 is placed between two shaft parts, the pad body 10 is deformed under axial vibration, and shock absorption is achieved by the support of the support grid 13 and the action of the non-Newtonian fluid in the cavity 14. The radial vibration between the shaft parts occurs along with the radial vibration of the pad body 10. At the same time, the frosted wear-resistant layer 12 and the raised bosses 15 increase the friction between the pad body 10 and the shaft parts, thereby reducing the relative sliding between the shock-absorbing pad and the parts during radial vibration, thereby reducing the friction loss between the parts.

[0030] In summary, by increasing the static friction between the shock-absorbing pad and the part and increasing the deformation ability of the shock-absorbing pad in a direction parallel to the contact surface between the shock-absorbing pad and the part, the relative sliding between the shock-absorbing pad and the part is reduced, thereby reducing the friction loss of the part to the shock-absorbing pad. In addition, the wear-resistant layer 12 made of polyurethane material can increase the wear resistance of the shock-absorbing pad.

[0031] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A wear-resistant rubber shock-absorbing pad, comprising an annular pad body (10), characterized in that: The upper and lower end surfaces of the cushion body (10) are fixedly provided with a plurality of raised portions (15) protruding toward the end surface on one side away from the cushion body (10). The cushion body (10) is hollow inside and has a plurality of support grids (13) fixedly provided therein.

2. The wear-resistant rubber shock-absorbing pad according to claim 1, characterized in that: The raised portions (15) on the upper and lower sides and the upper and lower end surfaces of the pad body (10) are all coated with a wear-resistant layer (12).

3. The wear-resistant rubber shock-absorbing pad according to claim 2, characterized in that: The wear-resistant layer (12) is one of a polyurethane coating, a nylon coating or a polytetrafluoroethylene coating.

4. The wear-resistant rubber shock-absorbing pad according to claim 1, characterized in that: The plurality of support grids (13) are all annular in structure, and the plurality of support grids (13) are arranged in an array with equal spacing from the inside to the outside with the axis of the cushion body (10) as the center, and the support grids (13) are arranged obliquely.

5. The wear-resistant rubber shock-absorbing pad according to claim 4, characterized in that: The plurality of support grids (13) are equally divided into an inner circle part and an outer circle part according to the number of circles. The plurality of support grids (13) in the inner circle part are inclined outward from top to bottom to form an outer inclined support grid (131), and the plurality of support grids (13) in the outer circle part are inclined inward from top to bottom to form an inner inclined support grid (132).

6. The wear-resistant rubber shock-absorbing pad according to claim 5, characterized in that: A cavity (14) is formed between adjacent outer oblique support grids (131) and adjacent inner oblique support grids (132), and the cavity (14) is filled with a non-Newtonian fluid.

7. The wear-resistant rubber shock-absorbing pad according to claim 1, characterized in that: The upper and lower end surfaces of the cushion body (10) are both fixedly provided with covering edges (11) protruding in a direction away from the cushion body (10).

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