圆锥滚子斜置贯穿式超精研凸度修形仿真分析  

Simulation Analysis on Convexity Profiling of Tapered Rollers During Oblique Posture Through-Feed Superfinishing

作　　者：田东辉 高作斌[1] 李建文 郭卫杰 金亮 TIAN Donghui;GAO Zuobin;LI Jianwen;GUO Weijie;JIN Liang(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Jing-Jin Electric Technologies Co.,Ltd.,Beijing 100016,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]精进电动科技股份有限公司,北京100016

出　　处：《轴承》2023年第12期39-45,51,共8页Bearing

基　　金：2021年产业基础再造与制造业高质量发展专项资助项目(TC210H02Q);国家重点研发计划重点专项资助项目(2018YFB2000401)。

摘　　要：针对圆锥滚子斜置贯穿式超精研凸度的变化和影响因素难以掌握的问题,介绍了斜置贯穿式超精研的工作机理,分析了滚子-油石接触的几何特征,提出和建立了滚子凸度修形仿真分析的原理、方法和几何模型,给出了仿真分析流程,并对凸度影响因素进行了仿真分析。结果表明:滚子斜置角主要影响凸度量大小和凸度形状,滚子倾斜角主要影响凸度对称性;与正置贯穿式超精研相比,斜置式可以大幅提高凸度量,且其凸度形状两端区域更陡峭,斜置角取值适当时凸度形状比较接近对数凸度曲线;油石厚度越大,凸度量越大;油石磨除滚子材料能力越强,凸度量越大,且被超精区域逐渐向中部集中。In response to the difficulty in grasping the changes and influencing factors of convexity of tapered rollers during oblique posture through-feed superfinishing,the working mechanism of oblique posture through-feed superfinishing is introduced,the geometric characteristics of roller-oilstone contact are analyzed,and the simulation analysis principle,method and geometric model of convexity profiling of the rollers are proposed and established,the simulation analysis flow is given,and the influencing factors of convexity are simulated and analyzed.The results show that:the skew angle of the rollers mainly affects the values and shape of convexity,and the tilt angle mainly affects the symmetry of convexity;compared with positive posture through-feed superfinishing,the oblique posture type can greatly improve the convexity values,and the two ends of convexity shape are steeper,and the convexity shape is closer to logarithmic convexity curve when the skew angle is appropriate;the thicker the oilstone,the larger the convexity value;the stronger the ability of oilstone to remove roller materials,the larger the convexity value,and the superfinished area gradually concentrates towards middle.

关 键 词：滚动轴承 圆锥滚子 凸度 超精加工 仿真分析 

分 类 号：TH133.332[机械工程—机械制造及自动化] TG580.61[金属学及工艺—金属切削加工及机床]