Novel axial fixing structure for constant velocity universal joint internal spline

Abstract

The invention relates to a novel axial fixing structure for a constant velocity universal joint internal spline. The novel axial fixing structure mainly comprises an internal spline shell and an external spline shaft rod, the external spline shaft rod is fixedly matched with an assembling hole of the internal spline shell, a bolt hole is formed in the end, close to the assembling hole, of the internal spline shell, and a bolt is assembled in the bolt hole. The novel axial fixing structure has the advantages that by redesigning the locking and axial fixing mode of the shell internal spline and a shaft rod external spline, axial and radial clearances generated after fitting of the internal spline and the external spline are eliminated, the problems such as axial movement, abnormal sounds and early spline failure which are caused due to the fit clearances are thoroughly solved, the novel axial fixing structure is more suitable for vehicle types which have the special requirements on fitting of the constant velocity universal joint splines on the premise that the vehicle installing and using requirements are met on the basis of the characteristics of the axial bolt locking and fixing structure for the internal spline, and the defects of an existing technical scheme are overcome.

Description

technical field [0001] The invention relates to an inner spline structure of a universal joint, in particular to a novel axial fixing structure of an inner spline of a constant velocity universal joint. Background technique [0002] In the existing technical scheme, the inner spline of the constant velocity universal joint and the outer spline of the shaft are axially fixed through the steel wire retaining ring, so as to ensure that the spline fits firmly and does not loosen during the operation of the vehicle. The method mainly has the following problems: 1. There is an axial gap between the inner and outer splines after mating; there will be axial movement and abnormal noise during the movement. 2. After mating, there is a radial gap between the inner and outer splines; under long-term movement, the splines will wear out and cause early failure. Contents of the invention [0003] The present invention aims to solve the above-mentioned shortcomings of the prior art, and ...

AI Technical Summary

Problems solved by technology

[0002] In the existing technical solutions, the inner splines of the constant velocity universal joint and the outer splines of the shaft are fixed axially through the steel wire retaining ring, so as to ensure that the splines are firmly matched and not loosened during the operation of the vehicle. The method mainly has the following problems: 1. After the fit, there is an axial gap between the inner and outer splines; there will be axial movement and abnormal noise during the movement

2. After mating, there is a radial gap between the inner and outer splines; under long-term movement, spline wear will occur and cause early failure

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