低速重载大型齿轮箱的故障诊断  

Fault Diagnosis of the Large Gearbox With Low-speed and Heavy-duty

作　　者：高立新[1] 张健[2] 张建宇[1] 张玉奎[3] 崔玲丽[1] 

机构地区：[1]北京工业大学先进制造技术重点实验室,北京100022 [2]武汉工程职业技术学院,湖北武汉430080 [3]武钢集团公司,湖北武汉430080

出　　处：《中国冶金》2005年第9期29-32,共4页China Metallurgy

基　　金：国家"863"计划资助项目(2002AA424033)

摘　　要：低速重载大型齿轮箱都有低于0.01Hz的微冲击振动信号且难以提取,给诊断工作带来很大困难;而采用基于小波分层突变系数的趋势图和间接判断等方法来提取损坏零部件的早期故障特征,效果较好。它可为预知维修提供决策依据,防止突发故障。There is micro shock signal of lower than 0. 01 Hz in the low-speed and heavy-duty gearbox and it is difficult to be abstracted. This has become a difficult problem for fault diagnosis. In this article, the trend graphs of the saltation coefficient of the wavelet analysis and indirect estimation are used to abstract the fault characteristic of the early stage. The results show that these methods are very effective and an provide the determination foundation for the predictive maintenance.

关 键 词：小波分析 齿轮箱 诊断 特征提取 

分 类 号：TH132.4[机械工程—机械制造及自动化]