圆柱滚子轴承打滑蹭伤的表面烧伤行为研究  

Research on Surface Burning Damage Behavior from Skidding for Cylindrical Roller Bearings

作　　者：金前冲 张庆[1] 罗军[2] 谢向宇 徐进[1] JIN Qianchong;ZHANG Qing;LUO Jun;XIE Xiangyu;XU Jin(College of Mechanical Engineering,Guizhou University,Guiyang 550025,China;Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province,College of Chemistry and Materials Engineering,Guiyang University,Guiyang 550005,China)

机构地区：[1]贵州大学机械工程学院,贵阳550025 [2]贵阳学院化学与材料工程学院材料磨损与腐蚀防护贵州省高校工程研究中心,贵阳550005

出　　处：《轴承》2019年第12期39-43,共5页Bearing

基　　金：国家自然科学基金项目(51605105);中国博士后科学基金面上项目(2015M572501);贵州省科技合作计划项目(黔科合LH字[2015]7303号);贵州省优秀青年科技人才培养计划(黔科技人才培养计划[2017]5628)

摘　　要：为深入了解滚动轴承烧伤机制,采用滚动轴承试验机模拟圆柱滚子轴承烧伤,并通过聚焦离子束扫描电子显微镜、轮廓仪、金相显微镜及显微硬度仪对烧伤轴承滚子和内圈进行分析。结果表明:圆柱滚子轴承发生打滑蹭伤后,主轴转速继续增大,轴承会发生烧伤;烧伤轴承滚子和内圈磨损严重,且呈大小不等的剥落坑和微裂纹,打滑蹭伤造成的烧伤层是二次淬火层。For further understanding burning damage mechanism of rolling bearing,the rolling bearing tester is used to simulate burning damage of cylindrical roller bearing.The roller and inner ring of burnt bearing are analyzed by using focused ion beam-scanning electron microscope,profilometer,metallographic microscope and microhardness instrument.The results show that after skidding for cylindrical roller bearing,the rotational speed of spindle continues to increase,and the bearing is burnt;the roller and inner ring of burnt bearing are worn seriously,and there are spalling pits and microcracks with different sizes.The burnt layer caused by skidding is secondary quenching layer.

关 键 词：圆柱滚子轴承 烧伤 试验 微观分析 

分 类 号：TH133.332[机械工程—机械制造及自动化]