汽车分动器齿形链疲劳失效分析  

Fatigue Failure Analysis of Automobile Transfer Case Silent Chain

作　　者：王洪军[1] 叶斌[1] 卢旭东[1] 

机构地区：[1]杭州东华链条集团有限公司技术中心,浙江杭州311102

出　　处：《机械传动》2012年第1期60-61,64,共3页Journal of Mechanical Transmission

基　　金：国家"863"高科技资助项目(2009AA04Z109);国家自然科学基金(50575089)

摘　　要：通过汽车分动器齿形链传动总成台架试验,研究了汽车链的疲劳机理,分析了链板疲劳断口的微观形貌,及探讨了汽车链主要零件的塑性变形和循环硬化特性,结果表明,汽车链的疲劳主要与链板的尺寸一致性、热处理和冲裁表面质量有关,指出了提高汽车分动器齿形链疲劳可靠性的措施。The fatigue mechanism of the automobile chain is studied by transfer case silent chain drive assembly bench test, and the chain plate fatigue fracture micrograph is analyzed. The plastic deformation and cyclic hardening characteristic of automobile chain major part are discussed. The results show that fatigue performance is mainly relative with chain plate dimensional uniformity, heat treatment and surface quality of the punch and the measure of improving automobile transfer case silent chain fatigue reliability is provided.

关 键 词：分动器 齿形链 汽车 疲劳 失效分析 

分 类 号：U463[机械工程—车辆工程]