摘要
为了确定高速动车组齿轮箱圆锥滚子轴承滚道剥离的原因,对故障样件进行了理化检测和轴承运动几何分析,确定了导致损伤的主要原因是由于滚动接触疲劳,反映出轴承工作过程中存在润滑不充分的事实。建立了滚动体与滚道的受力模型,对两者相互接触弹性变形的特征进行了分析。基于舍弗勒公司的高速滚动轴承动力学仿真软件对轴承运动状态进行了仿真验证,模拟了轴承运转过程中滚动体的自转效应及滚动体与滚道瞬时接触区域,阐明了润滑油膜厚度不足是诱发圆锥滚子轴承滚道接触损伤的重要原因。
In order to found the reason for the raceway stripping of tapered roller bearing of high-speed EMUs gearbox, physical and chemical testing as well as geometric analysis of failure bearing were carried out, and rolling contact fatigue was determined to be the root reason of damage, which indicated the fact that the lubrication was insufficient during bearing working process. A mechanical model of roller and raceway was established, and the contact deformation was analyzed between roller and raceway. The bearing movement status was simulated and verified with bearing dynamic simulation software developed by SCHAEFFLER company, and the self-rotating effect of roller and the instant contact area between roller and raceway had been simulated, which illuminated that contact damage between tapered roller and raceway was mainly caused by insufficient lubrication.
作者
戴晓超
王兴宇
王泽飞
徐芳
吕义
李国栋
DAI Xiaochao;WANG Xingyu;WANG Zefei;XU Fang;LYU Yi;LI Guodong(CRRC Changchun Railway Vehicles Co., Ltd., Changchun, Jilin 130062, China)
出处
《机车电传动》
北大核心
2018年第3期62-65,共4页
Electric Drive for Locomotives
关键词
高速动车组
轴承
损伤
失效分析
齿轮箱
high-speed EMUs
bearing
damage
failure analysis
gearbox
