Automobile differential machine assembly

Abstract

The invention discloses an automobile differential machine assembly which comprises an input shaft. The input shaft is provided with a driving gear matched with the input shaft, a universal joint pin and a rear half-axle gear. The driving gear and the axial face of the input shaft are supported through a needle bearing III 1 and a needle bearing IV, the radial face is supported through a thrust bearing I and a thrust bearing II, a planetary gear is installed on the universal joint pin, and the axial direction of the rear half-axle gear is supported through a needle bearing II. The axial direction of the rear half-axle gear is supported by the needle bearings instead of a copper sleeve, so that the gap is small. Due to the fact that the planetary gear and the universal joint pin are supported by the copper sleeve in the prior art, the copper sleeve is prone to being sintered on the planetary gear; when the planetary gear and the universal joint pin are supported by the needle bearings instead of the copper sleeve, sintering is not prone to occurring. In the prior art, the planetary gear makes slide contact with an outer shell of the differential machine shell through an iron pad, and now a nylon pad is adopted, so that lubrication is better and iron scraps are not prone to being produced. According to the automobile differential machine assembly, the planetary gear copper sleeve and the rear half-axle copper pad are removed.

Description

[0001] technical field [0002] The invention specifically relates to an automobile differential gear assembly. Background technique [0003] At present, in the differential assembly of automobiles, the traditional transmission structure components mainly include: input shaft, differential lock assembly and inter-axle differential assembly; among them, the inter-axle differential assembly is composed of driving cylindrical gear, Planetary gears, cross shafts and rear half shafts, etc. [0004] Parts composition. The power driving the car is sent to the main reducer assembly of the middle and rear axles through the input shaft, cross shaft, planetary gear and driving and driven cylindrical gears respectively, and then the power is sent to the left and right wheels through the half shaft to drive Vehicles walk. In this transmission system, there are the following problems: [0005] 1. The axial direction of the rear axle gear is supported by a copper sleeve, and the ga...

AI Technical Summary

Problems solved by technology

[0007] 3. The iron pad is used for sliding lubrication between the planetary gear and the differential case, which has poor lubricity and is prone to iron filings

[0008] 4. Between the rear axle gear and the case of the differential case is a copper pad for sliding lubrication, which has poor lubricity and is prone to copper shavings

[0009] 5. The diameter of the cross shaft is 94mm, the cross shaft is easy to break, and the bearing capacity is weak

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