42CrMo材料硬齿面齿轮全寿命试验及数据分析  

Full Life Tests and Data Analyses For 42CrMo Hardened Gear

作　　者：陈举华[1] 徐楠[1] 安艳秋[2] 

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东大学电气工程学院,山东济南250061

出　　处：《机械传动》2005年第5期63-65,共3页Journal of Mechanical Transmission

基　　金：山东省自然科学基金项目(Y2002F19);山东省科学技术发展计划项目(012050107);山东省技术创新项目(鲁经贸技字2003[182])

摘　　要：针对高炉无料钟炉顶传动中心轮———42CrMo硬齿面齿轮常发生齿根的弯曲疲劳折断,设计完成42CrMo硬齿面齿轮大样本全寿命成组试验。通过对试验齿轮疲劳寿命数据处理,得到可靠度0.99时齿轮定寿命下的极限应力分布和不同可靠度下的S-N曲线,为此类硬齿面传动的小子样试验预测和虚拟全寿命疲劳设计提供依据。Big samples and full life tests for 42CrMo-hardened gear,which is central part of bell-less gears system,were designed and finished because its tooth usually were fractured.Limit stress distribution under certain life span when reliability is 0.99 and S—N curves of various reliability were studied by data processing based on the experimental results.These research provided foundation for few samples estimation and virtual fatigue design of hardened gear drive.

关 键 词：42CrMo材料 硬齿面齿轮 全寿命试验 R-S-N曲线 

分 类 号：TH132.41[机械工程—机械制造及自动化]