前桥轴承及轮毂协同寿命提升的分析与改进研究

Analysis and improvement research of cooperative life promotion of front axle bearing and wheel hub

为解决轴承使用寿命低影响整桥乃至整车安全性能的问题,通过改变轴承型号,同时改变前轮毂内、外轴承挡肩之间距离,优化前桥轮毂轴承受力位置等方式,确保轮毂内、外轴承使用寿命较基础前桥提升1倍以上。运用ANSYS Workbench有限元分析对前轮毂同步分析,根据轴承受力位置优化前轮毂形态,使前轮毂最大应力降低30%以上,确保零部件寿命协同提升。

By changing the bearing type,and at the same time changing the distance between the inner and outer bearing blocks of the front wheel hub,the bearing force position of the front axle hub was optimized,and the service life of the inner and outer bearings of the hub was ensured to be 1 time longer than that of the basic front axle,and effectively solved the problem of low bearing service life that can affect the safety performance of the whole axle and even the whole vehicle.The ANSYS workbench finite element method was used to analyze the front wheel hub synchronously,and the shape of the front wheel hub was optimized according to the bearing position,which can reduce the maximum stress of the front wheel hub by more than 30%and ensure the service life of the parts to be promoted cooperatively.