航天轴承在较高温度下摩擦力矩特性的试验研究  

Experimental Research on Friction Torque Characteristics of Aerospace Bearings in Relative High Temperature

作　　者：徐志栋[1] 杨伯原[1] 李建华[2] 任海东[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]洛阳轴承研究所,河南洛阳471039

出　　处：《润滑与密封》2008年第3期66-68,共3页Lubrication Engineering

基　　金：国家“十五”重大科技攻关项目(MKPT-2004-51ZD)

摘　　要：摩擦力矩的大小和波动性是影响航天轴承性能和精度的主要因素。为了改进设计以提高轴承的性能,用改进后的轴承摩擦力矩特性试验台对某型号动量轮轴承在较高温度时的摩擦力矩特性进行试验研究,探讨了轴向载荷、温度和保持架类型对轴承摩擦力矩特性的影响。结果表明,圆兜孔保持架轴承的摩擦力矩基本上与轴向载荷成正比,而在较高温度条件下,摩擦力矩波动小,曲线有规律变化。当轴向载荷增大,温度升高时,方兜孔保持架轴承的摩擦力矩波动较大。The value of friction torque and its fluctuation property are main factors which influence the performance and precision of aerospace bearings.In order to increase designing level and improve bearing performance,the friction torque characteristics of a certain rection wheel bearing in relative high temperature were studied by using an improved test rig for friction torque characteristics of bearings.The influence of the axial load,the temperature and the type of bearing cage on friction torque characteristi...

关 键 词：航天轴承 圆兜孔保持架 高温 摩擦力矩特性 

分 类 号：V423[航空宇航科学与技术—飞行器设计]