无心磨削导轮倾斜时的圆锥滚子廓形分析  

Analysis on Profile Shape of Tapered Rollers During Centerless Grinding with Guide Wheel Inclination

作　　者：汤哲 高作斌[1] 汪靖翔 宁龙德 TANG Zhe;GAO Zuobin;WANG Jingxiang;NING Longde(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Henan Yuhua Price Office Co.,Ltd.,Zhengzhou 450053,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]河南省豫华价格事务所有限公司,郑州450053

出　　处：《轴承》2020年第12期32-37,42,共7页Bearing

基　　金：国家重点研发计划项目(2018YFB2000401)。

摘　　要：针对圆锥滚子贯穿式无心磨削,建立导轮倾斜时圆锥滚子中心贯穿轨迹方程,分析了滚子-砂轮接触平面内滚子中心贯穿轨迹的中凸曲线特征,建议将导轮轴线倾斜并将砂轮轴向廓形修整成一定的内凹形状,从而获得圆锥滚子轻微中凸廓形,算例中滚子中凸廓形的凸度量为0.8μm。进一步分析了影响滚子廓形的因素,结果表明:加大导轮在纵向铅垂平面内的倾斜角度,并相应加大砂轮廓形的内凹程度,可加大滚子廓形中凸程度;托板斜面倾斜角对滚子廓形的影响不大。Aimed at through-feeding centerless grinding of tapered rollers,the equations of central penetrating trajectory of tapered rollers are established when the guide wheel is inclined.The middle convex curve characteristics of central penetrating trajectory of the rollers in roller-grinding wheel contact plane are analyzed,it is suggested that the slight middle convex profile shape of tapered rollers is obtained if the axis of guide wheel is inclined and the axial profile shape of grinding wheel is dressed to definite concave shape.The convex value of middle convex profile shape of the rollers is 0.8μm in an example.The factors influencing of profile shape of the rollers are analyzed furtherly,and the results show that the middle convex degree of profile shape of the rollers is increased by increasing inclination angle of guide wheel in longitudinal vertical plane and concave degree of profile shape of grinding wheel.The inclination angle of supporting plate slope has little effect on profile shape of the rollers.

关 键 词：滚动轴承 圆锥滚子 中凸廓形 无心磨削 导轮倾斜 

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