润滑油与多孔聚酰亚胺保持架的相容性  

Compatibility of Lubricating Oil and Porous Polyimide Cage

作　　者：楚婷婷[1,2] 李媛媛 买楠楠[1,2] 孙小波 胡甫[1,2] 席博伦 董胤喆[1,2] Chu Tingting;Li Yuanyuan;Mai Nannan;Sun Xiaobo;Hu Fu;Xi Bolun;Dong Yinzhe(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]河南省高性能轴承技术重点实验室,河南洛阳471039

出　　处：《工程塑料应用》2021年第11期113-118,共6页Engineering Plastics Application

基　　金：国家重点研发计划(2018YFB2000602);国家自然科学基金项目(U1837602)。

摘　　要：采用自制的聚酰亚胺(PI)模塑粉,制备出一种轴承保持架用多孔PI材料,进行了多孔PI保持架材料与两类用于空间长寿命轴承系统的典型润滑油多烷基化环戊烷(MACs)、聚α–烯烃(PAO)的相容性研究,并进行了跑合验证。结果表明,两类润滑油与保持架材料相容性良好,保持架材料及润滑油的性能在浸油前后无明显变化;未浸渍润滑油的保持架摩擦系数为0.147,浸渍PAO油的保持架摩擦系数为0.061,浸渍MACs油的保持架摩擦系数为0.042,浸渍润滑油后保持架摩擦系数明显变小;浸渍两种润滑油后,保持架的含油保持能力基本一致,含油保持率均大于94%,含油保持能力强;轴承跑合电机转速稳定在6000 r/min,电机电流稳定在0.34 A,电流变化不超过10 mA,轴承跑合情况良好,保持架可反复多次浸渍使用。Self-made polyimide(PI)molding powder was used to prepare a porous PI material for bearing cage.The compatibility of porous PI cage materials with two typical lubricating oils(MACs and PAO)used in space long-life bearing systems was studied,and the running-in test was carried out.The results show that the two kinds of lubricating oil have good compatibility with the cage material,the performance of the cage material and lubricating oil has no obvious change before and after oil immersion;the friction coefficient of cage without lubricating oil is 0.147,the friction coefficient of cage impregnated with PAO oil is 0.061,the friction coefficient of cage impregnated with MACs oil is 0.042,the friction coefficient of the cage is small after impregnating the lubricating oil;after soaking the two lubricating oils,the oil holding capacity of the cage is basically the same,the oil retention rate is more than 94%,and the oil holding ability is strong;the bearing running in motor speed is stable at 6000 r/min,the motor current is stable at 0.34 A,current variation shall not exceed 10 mA,the running in condition of bearing is good,the cage can be used repeatedly by impregnating.

关 键 词：润滑油 相容性 多孔聚酰亚胺 保持架 轴承 

分 类 号：TH133.33[机械工程—机械制造及自动化] TQ323.7[化学工程—合成树脂塑料工业]