红外线轴温探测系统(THDS)预报故障轴承分析  

Analysis of Faulty Bearing Predicted by Trace Hotbox Detection System(THDS)

作　　者：刘鹏军 杨征西 李强 毕方勇 郑向阳 LIU Pengjun;YANG Zhengxi;LI Qiang;BI Fangyong;ZHENG Xiangyang(Beijing Ctrowell Technology Co.,Ltd.,Beijing 100191,China)

机构地区：[1]北京康拓红外技术股份有限公司,北京100191

出　　处：《铁道车辆》2023年第4期159-162,共4页Rolling Stock

摘　　要：介绍了红外线轴温探测系统(THDS)的工作原理及故障轴承温度预报标准,统计了全路THDS在2010—2018年预报铁路货车滚动轴承热轴及兑现情况,归纳分析了引起热轴的铁路货车滚动轴承故障类型;此外,利用统计学方法研究了THDS预报热轴故障与滚动轴承声学诊断系统(TADS)预报轴承声学故障之间的相关性,从原理上对热学及声学2种轴承故障诊断方法进行了分析。统计结果表明,THDS预报的故障热轴提前被TADS预报声学故障的可能性不足2.3%,即热轴故障在早期阶段并无显著的声学故障特征,THDS及TADS两者在轴承故障预报方面无相关性。Principles of Trace Hotbox Detection System(THDS)and criteria for predicting temperature of faulty bearing are introduced along with summary of predicted hot boxes of rolling bearings for railway freight cars by THDS between 2010-2018 throughout the lines and actual cases.Failure types of rolling bearings of railway freight cars,which caused hot boxes are concluded and analyzed.In addition,statistic methods have been utilized during research of the relevance between THDS predicted hot box failures and acoustic failures with predicted bearings by Trackside Acoustic Detection System(TADS)for rolling bearings.Analysis in principle of two methods for diagnosis of bearing failure has been conducted thermally and acoustically.Results of statistics indicate the possibility of advanced prediction on acoustic failures by TADS for the faulty hot box predicted by THDS is less than 2.3%,that is,the failure with hot box did not exhibit significant characteristics of acoustic failures at early stage.Hence there is no relevant between THDS and TADS in term of bearing failure prediction.

关 键 词：红外线轴温探测系统 滚动轴承声学诊断系统 声学敏感型故障 温度敏感型故障 

分 类 号：U270.331.2[机械工程—车辆工程]