摩托车发动机五档副轴失效分析  

Fracture Analysis on A CounterShaft of Motorcycle

作　　者：陈桂丰[1] 莫明珍[1] 谭莹[1] 陈明[1] 

机构地区：[1]广东出入境检验检疫技术中心,广东广州510623

出　　处：《装备制造技术》2010年第11期154-155,共2页Equipment Manufacturing Technology

摘　　要：为了查明摩托车发动机五档副轴在使用过程中发生断裂的原因,对该副轴进行了断口宏观和微观形貌、金相组织、硬度及化学成分分析,并对于防止类似事故发生应采取的技术措施提出了见解。A counter shaft made of 20CrMo was cracked in service.In order to examined the reason,the macrostructure and microstructure of fractured surface were investigated.The results show that the stress is concentrated at the point angle of the spline of the countershaft is the factor for resulting fatigue failure.Preventive action is given at the end.

关 键 词：摩托车 发动机 副轴 疲劳断裂 应力集中 

分 类 号：U483[交通运输工程—载运工具运用工程]