基于耐久性试验载荷谱的重卡轮毂轴承寿命估算  

Life Estimation of Heavy Truck Hub Bearing Based on Durability Test Load Spectrum

作　　者：童成鹏 雷良育[1,2] 王建航 范零峰 王国辉 TONG Cheng-peng;LEI Liang-yu;WANG Jian-hang;FAN Ling-feng(School of Engineering,Zhejiang A&F University,Lin’an 311300,China;Zhejiang Zhaofeng Mechanical and Electronic Co.,Ltd.,Hangzhou 311232,China)

机构地区：[1]浙江农林大学工程学院,临安311300 [2]浙江兆丰机电股份有限公司,杭州311232

出　　处：《湖南工程学院学报（自然科学版）》2021年第2期34-43,共10页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：萧山区重大科技计划项目(201911032).

摘　　要：以国内某公司生产的50万km质保的重卡轮毂轴承为研究对象,对其进行实际工况分析与耐久性试验载荷谱设计,基于耐久性试验载荷谱估算重卡轮毂寿命,分析轴承寿命影响因素,并对一批次重卡轮毂轴承进行耐久性试验.结果表明,重卡轮毂轴承估算寿命约为64万km,满足50万km质保要求;重卡轮毂轴承系统寿命与车辆侧向加速度和路面冲击系数成负相关,随着受载偏心距和车轮半径的增大呈先上升后下降的趋势;重卡轮毂轴承质量合格,满足耐久性试验性能要求.The heavy truck hub bearing with a quality guarantee of 500,000 km produced by a domestic com-pany is taken as the research object.The actual working condition analysis and durability test load spectrum design of heavy truck hub bearings are carried out.Based on the durability test load spectrum,the life of heavy truck hub bearings is estimated;the influencing factors of bearing life are analyzed,and the durability test of a batch of heavy truck hub bearings is carried out.The results show that the estimated life of heavy truck hub bearing is about 640,000 km,which meets the quality guarantee requirement of 500,000 km.The life of heavy truck hub bearing system is negatively correlated with vehicle lateral acceleration and road im-pact coefficient.It increases firstly and then decreases with the increase of load eccentricity and wheel radius.Hub bearing of heavy truck meets the requirement of durability test.

关 键 词：重卡轮毂轴承 载荷谱 寿命 耐久性 

分 类 号：U469.2[机械工程—车辆工程]