高压燃油泵凸轮轴失效分析与改进  

FAILURE ANALYSIS AND IMPROVEMENT FOR CAMSHAFT IN HIGH PRESSURE OIL PUMP

作　　者：陶景光[1] 冯继军[1] 张平[2] 黄文长[2] 王必 

机构地区：[1]华中科技大学材料学院,武汉430074 [2]东风汽车公司工艺研究所,十堰442001

出　　处：《理化检验（物理分册）》2001年第7期298-301,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：通过对凸轮轴失效的综合分析 ,揭示了其失效过程的微观机制是微动磨损疲劳 ,对系统的设计、装配结构及相关零件等方面进行了综合研究 ,指出油泵凸轮轴与传动齿轮间锥度配合设计上的缺陷 ,探讨了改进措施 。In this paper, a comprehensive study was carried out to the camshaft in high pressure oil pump which fractured in its early service life. The results showed that camshaft failure was a result of rotary bending fatigue. Furthermore, the system design and assembly and some relative components were studied. It indicated that there was a defection of the design in the cone shaped match between camshaft and transfer gear. An improvement which was proved valuable in practice was made.

关 键 词：凸轮轴 微动磨损 锥度配合 高压燃油泵 失效分析 改进措施 汽车 发动机 

分 类 号：U464.136[机械工程—车辆工程] U464.134.1[交通运输工程—载运工具运用工程]