四点接触球转盘轴承许用接触应力试验  

Experimental Study of Allowable Contact Stress for Four Point Contact Ball Slewing Bearings

作　　者：闫佳飞[1] 邱明[1] 赵滨海 陈龙[1] 柏耀星[1] 

机构地区：[1]河南科技大学机电工程学院,洛阳471003 [2]洛阳轴研科技股份有限公司,洛阳471003

出　　处：《机械设计与研究》2012年第2期40-43,共4页Machine Design And Research

基　　金：河南省杰出青年基金资助项目(114100510002);河南省高校科技创新人才支持计划资助项目(2009HASTIT008);洛阳市科技计划资助项目(1001040A)

摘　　要：42CrMo钢具有良好的淬硬性,被广泛用做转盘轴承套圈材料。首先对42CrMo钢采取不同热处理工艺进行表面感应淬火,以获得不同的淬硬层深度;然后通过电子万能试验机进行压痕试验;最后对试验数据进行分析研究。研究发现:决定转盘轴承许用接触应力的因素除了材料的机械性能外,还包括材料热处理后的表面硬度、淬硬层深度以及轴承的结构参数等因素。42CrMo steel is widely used for the ring of a slewing bearing because of good quench-hardenability.In this paper,surface induction quenching with different heat treatment process was applied for 42CrMo steel to get different hardening depth,and then,indentation tests were implemented with electronic universal testing machine.Finally,it can be concluded that the determining factors not only include the mechanical property of the material,but also include the surface hardness and hardened case depth after the material heat treatment,and the structural parameters of the slewing bearing.

关 键 词：转盘轴承 许用接触应力 表面硬度 淬硬层深度 

分 类 号：TH133.33[机械工程—机械制造及自动化] O343.3[理学—固体力学]