滚动轴承打滑蹭伤试验研究  

Experimental Study on Skid Damage of Rolling Bearing

作　　者：张庆[1] 罗军[2] 陈超 曾昭洋 金前冲 徐进[1] ZHANG Qing;LUO Jun;CHEN Chao;ZENG Zhaoyang;JIN Qianchong;XU Jin(School of Mechanical Engineering,Guizhou University,Guiyang Guizhou 550025,China;Guizhou Provincial College-based Engineering Research Center for Materials Protection of Wear and Corrosion,University of Guizhou Province,College of Chemistry and Materials Engineering,Guiyang University,Guiyang Guizhou 550005,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳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,贵州贵阳550005

出　　处：《润滑与密封》2019年第9期64-69,76,共7页Lubrication Engineering

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(黔科合平台人才[2017]5628)

摘　　要：基于高速滚动轴承试验机对滚动轴承打滑蹭伤展开试验研究,获得不同工况参数下滚动轴承打滑蹭伤的临界转速;研究滚动轴承在打滑蹭伤临界转速下不同运行时间对滚动轴承磨损程度的影响,以及滚动轴承打滑蹭伤后,继续以更高转速运行对滚动轴承磨损程度的影响。结果表明:滚动轴承发生打滑蹭伤瞬间伴随着摩擦扭矩、温度及振动加速度的同步突增,且其在润滑不充分及轻载工况下出现打滑蹭伤时的临界转速更低;滚动轴承在打滑蹭伤临界转速下运转时间越长,磨损越严重,这可能是由于打滑蹭伤破坏滚动轴承表面光洁度,使摩擦因数增大从而导致磨损速度加快;滚动轴承打滑蹭伤后,继续以更高转速运转时易出现二次淬火烧伤,大大降低轴承使用寿命。A high-speed rolling bearing test rig was used to conduct experimental study for the skid damage of rolling bearing,and the critical speed of the skid damage under different operating conditions was obtained.The influence of different running time on the degree of wear of the rolling bearing under the critical speed of the skid damage,and the influence of running at higher speed on the wear degree of the rolling bearing after the skid damage happens were studied.The results show that the rolling bearing has a sharp rise in friction torque,temperature and vibration acceleration when the skid damage happens,and the critical speed of the skid damage of the bearing is lower under the condition of inadequate lubrication and light load.The longer the running time of the rolling bearing under the critical speed of the skid damage is,the more serious the wear is.This may be due to the damage to the surface smoothness of the rolling bearing by skid damage,resulting in an increase in friction coefficient,which leads an increase in wear rate.After the skid damage of rolling bearing happens,it may be more likely to cause secondary quenching burns to the bearing if the rolling bearings continue to operate at a higher speed,which greatly reduces the service life of bearings.

关 键 词：滚动轴承 高速滚动轴承试验机 打滑蹭伤 工况参数 二次淬火烧伤 

分 类 号：TH117.1[机械工程—机械设计及理论]