Rear drive axle assembly

Abstract

The invention discloses a rear drive axle assembly which comprises an axle housing, a main reducing gear and an axle shaft; the axle shaft is supported in the axle shaft through an axle shaft bearing which is a self-aligning roller bearing; a vibration absorption block is arranged on the axle housing and comprises a sleeve and a rubber body; the sleeve is welded on the axle housing; one end of the rubber body is mounted in the sleeve in a pressed manner. The invention can solve the problem of abnormal noise of the rear drive axle assembly.

Description

technical field [0001] The invention relates to a rear drive axle assembly of a microcar. Background technique [0002] In the prior art, most microcars use a semi-floating half-shaft structure rear axle, which not only bears torque but also bears all reaction forces and bending moments, and all forces need to be transmitted through the half-shaft bearings. Therefore, in order to meet the requirements of the whole vehicle, it is necessary for the half-shaft bearing to bear both radial load and axial load, and at the same time withstand the overturning moment caused by the deformation of the half-shaft. At present, there are generally three types of semi-axis bearings for the rear axle of mini-cars: one is single-row deep groove ball bearings. The rear axle using this type of bearing has a simple structure and installation, and the bearing capacity of the rear axle is better. At present, most of the rear axles of mini-cars The bridge uses this type of bearing; the other is t...

AI Technical Summary

Problems solved by technology

[0004] The abnormal noise of the half-shaft bearing and the abnormal noise of the main reducer are the two main reasons for the abnormal noise of the rear axle of the mini-car, which seriously affects the reliability of the rear axle of the mini-car and the NVH performance of the whole vehicle

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