小波包分析在采煤机减速器故障诊断中的应用  

Application of Wavelet Packet Analysis in Fault Diagnosis of Coal Cutter Reducer

作　　者：弓晓凤 马宪民[1] 张永强[1,2] 

机构地区：[1]西安科技大学电气与控制工程学院,西安710054 [2]神华宁煤集团矿山机械制造维修分公司,银川750001

出　　处：《煤炭技术》2014年第7期196-199,共4页Coal Technology

基　　金：陕西省教育厅基金资助(2010JK663);国家自然科学基金资助(50977077)

摘　　要：提出了一种采用小波包理论提取采煤机减速器故障信号的方法。利用小波包变换对减速器振动信号进行分解、重构及能量计算,有效地提取出采煤机减速器故障特征信号,从而获得故障的信息。仿真研究结果表明,基于小波包能量法的故障诊断方法能够有效地提取出采煤机减速器故障的频率信息。Method of fault diagnosis for the coal cutter reducer based on wavelet packet theory is proposed.The wavelet packet transform is used to decompose and reconstruct and calculate energy of vibration signal of coal cutter reducer in order to get the fault information,so as to extract the coal cutter reducer fault feature signals effectively.The simulation results shows that this method can extract the coal cutter reducer frequency fault.

关 键 词：采煤机 故障诊断 小波包 减速器 

分 类 号：TD421.6[矿业工程—矿山机电] TH132.46[机械工程—机械制造及自动化]