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.
作者
邱明
周占生
周大威
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)
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
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~~
关键词
聚苯硫醚
织物衬垫
自润滑关节轴承
摩擦磨损
PPS
fabric liner
self-lubricating spherical plain bearing
friction and wear
