轨道转换车导向轮轴承失效机理  

Failure Mechanism for Guide Wheel Bearings Used in Orbital Transfer Vehicle

作　　者：李伟建[1] 贾立德[1] 

机构地区：[1]酒泉卫星发射中心,甘肃酒泉732750

出　　处：《轴承》2014年第12期25-28,共4页Bearing

摘　　要：针对轨道转换车导向轮下沉的问题,在计算导向轮组件承受冲击载荷的基础上,分析了导向轮轴承失效机理,主要是由于轴承承受冲击弯矩载荷,外圈挡边磨损直至断裂失效,并给出了改进建议。Aiming at the problem about sinking of the guide wheel for the orbital transfer vehicle,the failure mechanism for the guide wheel bearings are analyzed based on calculation of the impact load of the guide wheel assembly.The main reason is that bearings are subjected to impac bending load,and this causes outer ring rib wear and fracture failure.The suggestions for improvement are given.

关 键 词：导向轮轴承 套圈 断裂 失效分析 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH165.3