全陶瓷球轴承内外圈沟曲率系数的优化设计  

Optimal Design of Groove Curvature Radius Based on Full Ceramic Ball Bearing

作　　者：周井玲[1] 张巍文 顾乐乐 ZHOU Jing-ling;ZHANG Wei-wen;GU Le-le(School of Mechanical Engineering,Nantong University,Jiangsu Nantong226019,China)

机构地区：[1]南通大学机械工程学院

出　　处：《机械设计与制造》2020年第1期26-28,共3页Machinery Design & Manufacture

基　　金：江苏省“‘青蓝工程’资助”（2016）;江苏省成果转化基金项目（BA2015129）;江苏省产学研合作项目（BY2015053-17）

摘　　要：全陶瓷轴承沿用钢轴承的参数设计会大大降低轴承的疲劳寿命,需对全陶瓷轴承进行优化设计来提高疲劳寿命。通过对当前设计试样轴承的疲劳寿命试验结果分析,以全陶瓷深沟球轴承内外圈的接触应力和摩擦力矩作为优化目标,建立优化评价系数的函数,并求得内外圈沟曲率系数的最优值。建立有限元模型,对其内外圈与球的接触应力和摩擦力矩进行分析验证。最后进行疲劳寿命试验,验证了优化设计后轴承在载荷为500N左右时,疲劳寿命提升最大,约17%。The fatigue life of full ceramic bearing will be reduced if use the parameter design of steel bearing,so optimal design of full ceramic bearing should be carried out. With the analysis of current design bearings,the objective functions are Hertzian stress and friction moment in inner and outer rings,then the optimal function has been established. A finite element model has been established to analyze the result. The result of tests shows fatigue life of optimal design has been increased about 17% with the load under 500 N.

关 键 词：全陶瓷轴承 沟曲率 有限元 优化设计 

分 类 号：TH16[机械工程—机械制造及自动化] TH133.3