滚柱直线导轨副磨损系数计算与试验研究  

Calculation and Experimental Research of Linear Motion Roller Bearing Wear Coefficient

作　　者：陈虎 周长光 梁医[1,2] 冯虎田 沈俊琬[1,2] CHEN Hu;ZHOU Chang-guang;LIANG Yi;FENG Hu-tian;SHEN Jun-wan(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Key Laboratory of the Ministry of Industry and Information Technology on General Technology of Functional Parts of Numerical Control Machine,Zhangjiagang 215600,China)

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]数控机床功能部件共性技术工业和信息化部重点实验室,张家港215600

出　　处：《组合机床与自动化加工技术》2023年第4期14-18,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51905274);国家科技重大专项高质量发展专项(TC210H038-02);南京理工大学丽水滚动功能部件工业技术联合研究项目(1214021010507)。

摘　　要：磨损系数是表征滚柱直线导轨副耐磨性的重要参数,然而目前关于滚柱直线导轨副磨损系数的计算方法和试验研究较为缺乏。基于Archard磨损理论,考虑滚柱直线导轨副滑块沿导轨往复运动的特点,引入了修正系数。结合滚柱与滚道间的接触载荷以及滑动速度,建立了新的滚柱直线导轨副磨损系数计算模型。搭建了滚柱直线导轨副加载运转试验系统,测量得到了两根滚柱直线导轨副的摩擦力变化曲线。试验结果表明,滚柱直线导轨副在磨损过程中的摩擦力呈现先快速下降,再缓慢下降,最后小幅度上升的趋势,测得两根样件的磨损系数分别为1.57×10^(-13)和1.16×10^(-13),均处于10^(-13)这一数量级,这一磨损系数可以用于滚柱直线导轨副磨损相关研究。Wear coefficient is an important parameter to characterize the wear resistance of linear motion roller bearing,but the current calculation method and experimental research for the wear coefficient is relatively lacking.Based on Archard wear theory,Considering the characteristics of the reciprocating motion of the slider of the linear motion roller bearing,a correction coefficient is imposed.Combined with the contact load and sliding speed between the roller and the raceway,a new model for calculating the wear coefficient of linear motion roller bearing is established.A loading test system is built for the linear motion roller bearing,and the friction change curve of the two roller linear guide pairs was measured.The experiment results demonstrate that:the friction force of linear motion roller bearing in the wear process presents a rapid decrease,then a slow decrease,and finally a slight increase in the trend.The wear coefficients of the two samples were 1.57×10^(-13) and 1.16×10^(-13),which were in the order of 10^(-13),and this wear coefficient can be used for the study of the wear of linear motion roller bearing.

关 键 词：滚柱直线导轨副 磨损系数 摩擦力 滚道磨损 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]