EPS助力齿轮轴的失效分析与试验
The Failure Analysis and Testing of the EPS Assistance Pinion
向永超 1滕海文 1杨儒亚 1侯富彬 1闫世伟1
作者信息
- 1. 长城汽车股份有限公司,保定 071000
- 折叠
摘要
通过前期的有限元分析,验证了EPS助力齿轮轴的疲劳寿命,结合台架试验和线体检测,对助力齿轮轴失效问题进行了深入的分析.结果表明:淬火冷却介质和渗碳深度对齿轮轴表面的硬度都有影响,淬火冷却介质对硬度的影响更大,热处理工艺的变化是引起齿轮轴断裂的根本原因.
Abstract
The fatigue life of EPS assistance pinion is verified through the previous finite element analysis.The failure problem of assistance pinion is deeply analyzed combined with bench testing and production line testing.The results show that the quenching cooling medium and the depth of carburizing have influence on the hardness of the assistance pinion surface,the quenching cooling medium has more influence on the hardness,so the change of heat treatment process is the fundamental cause of the fracture of the assistance pinion.
关键词
有限元/齿轮轴/淬火/渗碳Key words
Finite Element/Pinion/Quenching/Carburizing引用本文复制引用
出版年
2024
NETL
NSTL
万方数据