推力调心滚子轴承轴圈通裂失效分析  

Fracture Failure Analysis of Shaft Washer of Thrust Spherical Roller Bearing

作　　者：仪欣 YI Xin(Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co.,Ltd.,Wafangdian 116300,China)

机构地区：[1]瓦房店轴承集团国家轴承工程技术研究中心有限公司,辽宁瓦房店116300

出　　处：《哈尔滨轴承》2023年第4期36-40,共5页Journal of Harbin Bearing

摘　　要：针对某型推力调心滚子轴承在使用过程中发生轴圈通裂的现象,采用化学成分分析、金相组织检验及洛氏硬度检验等技术对失效原因进行了分析。结果表明:滚子大端面与轴圈大挡边接触不良,在接触不良处产生二次淬火层和高温回火层,最终在轴圈大挡边处发生开裂。In response to the phenomenon of shaft washer fracture in a certain type of thrust spherical roller bearing during use,the failure reasons were analyzed using techniques such as chemical composition analysis,metallographic structure inspection,and Rockwell hardness inspection.The results indicate that the large end face of the roller has poor contact with the large rib of the shaft washer,resulting in a secondary quenching layer and a high-temperature tempering layer at the contact area,ultimately causing fracture at the large rib of the shaft washer.

关 键 词：轴圈通裂 二次淬火层 化学成分 金相组织 

分 类 号：TH133.33[机械工程—机械制造及自动化] TG115[金属学及工艺—物理冶金]