Micro wheel-side structure of automobile axle

Abstract

A micro wheel-side structure of an automobile axle is disclosed, which belongs to the field of automobile drive axle assembly. The purpose of the invention is to provide a micro wheel-side structure of an automobile axle using a bearing seat structure for locating and tightly pressing a bearing, and using a sealing system in which an internal double oil seal and an external double oil seal work with an oil throwing disc. In the invention, the oil throwing disc is installed on the flange of a half axle; one end of the oil throwing disc is lapped on the internal oil seal; the bearing is sleeved on the half axle; a bearing outer ring is fixedly connected with the bearing seat; the internal oil seal is clamped between the bearing seat and the half axle; a bearing inner ring is clamped via a bearing retaining ring and a locating ring; a gear ring clamps the locating ring; the bearing seat is connected with an axle head; and an external oil seal is clamped between the axle head and the locating ring. The invention provides a brand-new design scheme on the micro wheel-side part of an automobile axle: a bearing seat structure is used for locating and tightly pressing a bearing, and, at the same time, the convenience of disassembly and assembly is improved; and a sealing system in which the internal and the external double oil seals work with the oil throwing disc is used for lubricating oil sealing.

Description

technical field [0001] The invention belongs to the field of automobile drive axle assembly. Background technique [0002] At present, most of the wheel rim parts of miniature axles adopt the following structural types: [0003] 1. Use the pressure plate structure to compress the half shaft bearing, and play the role of oil and dust isolation; [0004] 2. A single oil seal is used inside the half shaft bearing to seal the lubricating oil of the reducer to prevent the lubricating oil from entering the wheel edge. [0005] The above structure type can easily lead to: [0006] 1. The half shaft bearing is not tightly pressed, and the life of the bearing is reduced; [0007] 2. The lubricating oil is not well sealed, and there is oil leakage on the wheel edge. In severe cases, the lubricating oil enters the brake and causes the brake to fail; [0008] 3. It is difficult to disassemble the wheel rim and it is not easy to maintain. Especially when replacing the main reducer ge...

AI Technical Summary

Problems solved by technology

[0006] 1. The half shaft bearing is not tightly pressed, and the life of the bearing is reduced;

[0007] 2. The lubricating oil is not well sealed, and there is oil leakage on the wheel edge. In severe cases, the lubricating oil enters the brake and causes the brake to fail;

[0008] 3. It is difficult to disassemble the wheel edge and it is not easy to maintain, especially when replacing the main reducer gear and other parts, the possibility of damage to the parts caused by the disassembly of the half shaft assembly is relatively high

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