Novel gear gasket

Abstract

The utility model provides a novel gear gasket, and belongs to the technical field of mechanical parts. The problems that due to the fact that abrasion of the contact face of an existing gear gasket and a differential mechanism shell is large, positioning abrasion is caused, and use is affected are solved. The novel gear gasket comprises a gasket body positioned and installed on the contact surface of a differential shell, a center hole is formed in the middle of the gasket body, a step portion protruding axially is arranged at the bottom of the gasket body, a plurality of positioning blocks are formed on the step portion around the peripheral wall of the step portion, each positioning block is of a triangular structure, and one end of each positioning block is formed on the peripheral wall of the step portion. A positioning notch groove is formed in the position, between every two adjacent positioning blocks, of the peripheral wall of the gasket body, and lubricating grooves communicated with the top of the gasket body are formed in the positioning blocks. The positioning device has the advantages of reducing abrasion and improving positioning and using effects.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical parts technology, and relates to a gear shim, and more particularly to a novel gear shim. Background Technology

[0002] Currently, a simple positioning structure is typically used between the differential housing and the differential half-shaft gear pad. This mainly involves creating a positioning groove around the gear pad and raising a corresponding protrusion on the contact surface of the differential housing to match the groove. However, in actual use, it has been found that due to the rapid acceleration of the vehicle drive motor, especially in new energy vehicles, the differential generates a lot of heat, resulting in significant wear between the differential housing contact surface and the gear pad. Over time, this wear becomes severe, damaging the positioning between the protrusion and the positioning groove, causing gear pad misalignment and greatly affecting the overall use of the differential. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a novel gear gasket that offers stable positioning and lubrication.

[0004] The objective of this utility model can be achieved through the following technical solution: A novel gear gasket, characterized in that it includes a gasket body positioned and installed on the contact surface of a differential housing, the gasket body having a central hole in the middle, the bottom of the gasket body having an axially protruding stepped portion, a plurality of positioning blocks formed around the peripheral wall of the stepped portion, the positioning blocks having a triangular structure, one end of the positioning block being formed on the peripheral wall of the stepped portion, and the other end being formed on the peripheral wall of the gasket body, the peripheral wall of the gasket body and between adjacent positioning blocks having a positioning notch groove, and a lubrication groove communicating with the top of the gasket body being opened on the positioning block.

[0005] In the aforementioned novel gear gasket, the lubrication groove is inclined.

[0006] In the aforementioned novel gear gasket, the differential contact surface has a mounting groove for mounting the stepped portion, and the mounting groove extends to form multiple positioning grooves for positioning and mounting the positioning block.

[0007] Compared with existing technologies, this new gear shim improves positioning and provides lubrication, preventing wear between the shim and the differential housing. Attached Figure Description

[0008] Figure 1 This is a three-dimensional view of the new type of gear washer.

[0009] Figure 2 This is a schematic diagram of the new type of gear gasket installed on the differential housing.

[0010] In the diagram, 1 is the gasket body; 2 is the stepped part; 3 is the positioning block; 4 is the positioning notch; 5 is the lubrication groove; 6 is the mounting groove; 7 is the positioning groove; and 8 is the differential housing. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2 As shown, the new gear gasket includes a gasket body 1 positioned and installed on the contact surface of the differential housing 8. The gasket body 1 has a central hole in the middle and an axially protruding stepped portion 2 at the bottom. Multiple positioning blocks 3 are formed around the peripheral wall of the stepped portion 2. The positioning blocks 3 have a triangular structure, with one end formed on the peripheral wall of the stepped portion 2 and the other end formed on the peripheral wall of the gasket body 1. The peripheral wall of the gasket body 1 and the space between two adjacent positioning blocks 3 have positioning notches 4. A lubrication groove 5 communicating with the top of the gasket body 1 is provided on the positioning block 3.

[0013] To elaborate further, the lubrication groove 5 is inclined. In actual operation, by injecting lubricating oil into the lubrication groove 5, the lubricating oil penetrates through the gasket body 1 and the positioning block 3 and permeates between the differential contact surface and the gasket body 1, which can achieve supplementary lubrication between the contact surface and the gasket body 1, resulting in higher lubrication sufficiency and preventing wear. The inclined lubrication groove accelerates the flow of lubricating oil after high temperature and improves the lubrication effect.

[0014] To elaborate further, the differential contact surface has an installation groove 6 for mounting the stepped portion 2, and multiple positioning grooves 7 for positioning and mounting the positioning block 3 extend from the installation groove 6. The differential contact surface also has a protrusion that mates with the positioning notch 4. When the lubricating oil enters along the lubrication groove 5, it first contacts the end face of the positioning groove 7 and spreads outward, making contact lubrication with the bottom surface of the gasket body 1.

[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0016] Although this document frequently uses terms such as gasket body 1, step portion 2, positioning block 3, positioning notch groove 4, lubrication groove 5, mounting groove 6, positioning groove 7, and differential housing 8, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A novel gear washer, characterized in that, The gasket body (1) is positioned and installed on the contact surface of the differential housing (8). The gasket body (1) has a central hole in the middle and an axially protruding step (2) at the bottom. Multiple positioning blocks (3) are formed around the periphery of the step (2). The positioning blocks (3) are triangular in structure. One end of the positioning block (3) is formed on the periphery of the step (2) and the other end is formed on the periphery of the gasket body (1). The periphery of the gasket body (1) and between two adjacent positioning blocks (3) have positioning notches (4). The positioning blocks (3) have lubrication grooves (5) that communicate with the top of the gasket body (1).

2. The novel gear washer according to claim 1, characterized in that, The lubrication groove (5) is inclined.

3. The novel gear washer according to claim 1, characterized in that, The differential contact surface has a mounting groove (6) for mounting the stepped part (2), and a plurality of positioning grooves (7) for positioning and mounting the positioning block (3) are extended on the mounting groove (6).

Images