圆锥滚子圆弧凸度无心贯穿式包络法磨削  

Centerless Through-Feeding Envelope Grinding for Arc Crown of Tapered Rollers

作　　者：王志民 高作斌[1] 李建文 卢聪爽 王晓亮 WANG Zhimin;GAO Zuobin;LI Jianwen;LU Congshuang;WANG Xiaoliang(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471000,China;Jingjin Electric Technology Co.,Ltd.,Beijing 100102,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471000 [2]精进电动科技股份有限公司,北京100102

出　　处：《轴承》2024年第6期38-46,共9页Bearing

基　　金：2021年产业基础再造与制造业高质量发展专项(TC210H02Q)。

摘　　要：为提高圆锥滚子凸度磨削精度,提出一种圆锥滚子凸度无心贯穿式包络法磨削方法,将砂轮修整为凸圆弧廓形,将导轮修磨成其半径按凹曲线变化,使滚子在曲线轨迹贯穿过程中凸度曲线始终与砂轮圆弧廓形相切,从而实现滚子凸度形状的包络法磨削成形。并针对单一圆弧滚子凸度,阐述了滚子凸度包络法磨削的原理和优点,给出了砂轮廓形圆弧半径和导轮轴向廓形(导轮半径变化曲线和导轮形面轴向截形角)的计算方法。To improve the grinding accuracy of crown of tapered rollers,a centerless through-feeding envelope grinding method is proposed.The grinding wheel is dressed to convex arc profile,and the guide wheel is ground to change its radius according to concave curve,so that the crown curve of the rollers is always tangent to arc profile of grinding wheel during curve trajectory penetration process,thus achieving the envelope grinding for crown shape of the rollers.The principle and advantages of envelope grinding for single arc crown of the rollers are elaborated,the calculation methods are given for arc radius of grinding wheel profile and axial profile of guide wheel(radius variation curve of guide wheel and axial cross-sectional angle of guide wheel profile).

关 键 词：滚动轴承 圆锥滚子 凸度 无心磨削 导轮 

分 类 号：TH133.332[机械工程—机械制造及自动化] TG581.1[金属学及工艺—金属切削加工及机床]