聚四氟乙烯/聚苯硫醚织物自润滑关节轴承的摩擦学性能  

Tribological Properties of Self-Lubricating Spherical Plain Bearings with PTFE/PPS Fabric Liners

作　　者：邱明[1,2] 周占生 周大威[1] 杜辉 QIU Ming;ZHOU Zhansheng;ZHOU Dawei;DU Hui(Henan University of Science and Technology,School of Mechatronics Engineering,Henan Luoyang 471003,China;Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province,Henan Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]机械装备先进制造河南省协同创新中心,河南洛阳471003

出　　处：《摩擦学学报》2018年第5期547-553,共7页Tribology

基　　金：国家自然科学基金项目(51275155);河南省科技创新杰出人才计划项目(154200510013);河南省重大科技专项项目(161100210800)资助~~

摘　　要：制备了两种聚四氟乙烯(PTFE)/聚苯硫醚(PPS)织物衬垫自润滑关节轴承.在径向载荷为35 kN,摆动频率为2.5 Hz工况下,利用关节轴承试验机对其摩擦学性能进行了研究.采用扫描电子显微镜(SEM)、能谱仪(EDS)和激光扫描共聚焦显微镜(LSCM)对其摩擦面的微观形貌和磨损机理进行了研究.结果表明:PTFE/PPS短纤维关节轴承表现出良好的摩擦学性能,其耐磨性和PTFE转移膜面积比PTFE/PPS长丝纤维关节轴承高22.9%和69.7%.PTFE/PPS短纤维关节轴承的磨损机理主要为轻微的黏着磨损和磨粒磨损,PTFE/PPS长丝纤维关节轴承的磨损机理主要为严重的黏着磨损和磨粒磨损.Two kinds of self-lubricating spherical plain bearings with PTFE/PPS fabric liners were prepared. With spherical plain bearing tester, the tribological properties of self-lubricating spherical plain bearings were studied under a 35 kN of radial load and a 2.5 Hz of swing frequency. The worn surface morphologies and wear mechanisms were investigated by using scanning electron microscope（SEM）, energy dispersive spectrometer（EDS）, and confocal laser scanning micrscopy（CLSM）. Results show that the self-lubricating spherical plain bearings with PTFE/Short PPS fibers presented better tribological properties. Compared with self-lubricating spherical plain bearings with PTFE/Filament PPS fibers, the wear resistance and the PTFE tribofilm proportion increased by 22.9% and 69.7%, respectively. The main wear mechanism of the bearings with PTFE/Short PPS fibers was mild adhesive wear and abrasive wear. The main wear mechanism of the bearings with PTFE/Filament PPS fibers was severe adhesive wear and abrasive wear.

关 键 词：聚苯硫醚 织物衬垫 自润滑关节轴承 摩擦磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]