ISSN1000 3762 CN41 1148/TH
轴承2016年9期 Bearing 2016,No.9
8598
耐热钢无油沟宽挡边圆柱滚子轴承外圈滚道与
挡边的磨削加工曲红利"2，吴晓明1",2
（1.洛阳LYC轴承有限公司，河南洛阳471039;2.航空精密轴承国家重点实验室，河南洛阳471039）摘要：耐热钢无油沟宽挡边（≥3mm）圆柱滚子轴承外圈使用的耐热钢材料黏性大、硬度高，采用复合磨削方法磨削外滚道与挡边时，由于挡边宽，磨削热难以散发，挡边易产生磨削烧伤。为解决这一间题，采用了新的磨削工艺：单独磨削滚道后在切人磨机床上磨削挡边，先横向进给，然后纵向进给，依靠砂轮的自然脱落形成滚道与挡边的过渡圆弧。
关键词：圆柱滚子轴承；耐热钢；无油沟；宽挡边；复合磨削；烧伤；切人磨
中图分类号：TH133.33*2;TG580.61*7
文献标志码：B
文章编号：10003762(2016)09003603
Grinding Process for Raceway and Ribs of Cylindrical Roller Bearing
OuterRingswithNon-OilGrooveandWideRibMadeof
Heat-Resistant Steel Qu Hongli'-2,Wu Xiaoming"-2
(1. Luoyang LYC Bearing Co. , Ltd. , Luoyang 471039, China;2. State Key Laboratory of Aerospace Precision
Bearing, Luoyang 471039, China)
Abstract : The cylindrical roller bearings outer rings with non oil groove and wide rib( ≥3 mm) are made of heat re sistant steel which is characterized with high viscosity and high hardness. The composite grinding method is used to grinding outer raceway and ribs, and the heat produced by grinding is difficult to disperse due to wide ribs, resulting in grinding bum of ribs. In order to solve the problem,the new grinding process is adopted. The ribs are grinded on plunge cut grinding machine (firstly horizontal feed, and then longitudinal feed) after the raceway is individually grinded The transition circular arc between raceway and ribs is formed by fall off of grinding wheel.
Key words: cylindrical roller bearing; heat resistant steel; non oil groove; wide rib; composite grinding; bum: plunge cut grinding
圆柱滚子轴承外圈结构
常规的带挡边圆柱滚子轴承外圈为如图1所示的双挡边外圈，设计时考虑工艺加工方法，在滚道与挡边交接处设置有工艺油沟，油沟尺寸m， m，m，根据产品大小已形成系列。对于此类产
品，磨加工工艺采用挡边和滚道分开加工的工艺方式，油沟相当于空刀槽。对于薄、窄系列的高速轴承套圈，若仍采用带油沟结构，将降低产品的某
收稿日期：2016-05-19 万方数据
放大图
图1带油沟双挡边圆柱滚子轴承外图
Cylindrical roller bearing outer ring with oil groove and
Fig.1
double ribs