摘要
利用自制的杆端关节轴承摩擦磨损试验机,分别对碳纤维改性尼龙衬垫轴承以及聚四氟烯(PTFE)和碳纤维混合改性尼龙衬垫杆端关节轴承的摩擦因数、磨损量随接触应力的变化规律进行了分析,并采用扫描电子显微镜、能谱仪、傅里叶变换红外光谱仪对两种轴承衬垫材料的磨损形貌和磨损机理进行了研究。结果表明:PTFE和碳纤维混合改性尼龙衬垫轴承的摩擦学性能较好,耐磨性得到显著提高;PTFE和碳纤维混合改性尼龙的轴承衬垫发生了轻微的磨粒磨损和粘着磨损,而碳纤维改性尼龙轴承的衬垫则发生了较为严重的粘着磨损和磨粒磨损。
Two kinds of rod end spherical plain bearings are tested on a tribo-tester,of which the nylon liners are reinforced by carbon fibers as well as by carbon fibers and PTFE,respectively,and their friction coefficients and wear depths at different contact pressures are investigated. With the help of a scanning electron microscope（ SEM）,an energy dispersive spectrometer（ EDS） and a Fourier transform infrared spectrometer,the microstructures and wear mechanisms of two rod end spherical bearings are compared and analyzed. Experimental results show that the tribological properties of the bearings with the nylon liners reinforced by carbon fibers and PTFE are optimal,and their wear resistances are significantly improved. Slight adhesive wear and abrasive wear occurred on the worn surfaces of the liners reinforced by carbon fibers and PTFE,and severe adhesive wear and abrasive wear occurred on the worn surfaces of theliners reinforced by carbon fibers.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2017年第10期2075-2080,共6页
Acta Armamentarii
基金
国家自然科学基金项目(51275155)
关键词
机械学
杆端关节轴承
尼龙
摩擦
磨损
衬垫
mechanics
rod end spherical plain bearing
nylon
friction
wear
liner
