基于三轴向振动加速度计的轴承故障检测  

Bearing Fault Detection Based on Triaxial Vibration Accelerometer

作　　者：陈惠林 严良文[1] 郭建辉[2] 黄雪钢[2] 谢晶 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]华能上海石洞口第二电厂,上海200942

出　　处：《工业控制计算机》2020年第8期68-69,共2页Industrial Control Computer

摘　　要：制造业中生产装置的运行可靠性及稳定性是制约企业生产力的关键因素,也是衡量企业管理水平的指标之一。生产流程中的转动机械如离心式、轴流式风机和水泵等在高粉尘、高温高压介质和振动等恶劣环境下,其轴承极易出现故障[1]。通过三轴向振动加速度计为基础的振动频谱分析仪定期采集转机的振动数据,进行频谱和解调频谱分析以判断轴承运行状态。对健康状况评估不佳的轴承择机处理更换。华能国际电力股份有限公司上海石洞口第二发电厂(以下简称石二厂)自2018年实行以轴承运行状态为基础的转机检修策略后,未发生过因轴承失效而造成设备损坏或发电机组跳闸等故障,使用效果良好。This paper introduces the vibration data of the rotating machine is collected regularly by the vibration spectrum analyzer based on the triaxial accelerometer,and analyzes the spectrum and demodulation spectrum to judge the running state of the bearing.The bearing with poor health assessment shall be replaced by maintenance.Since the implementation of condition based maintenance from 2018,there has been no equipment damage or generator unit trip and other failures due to bearing failure in Shanghai Shidongkou No.2 Power Plant of Huaneng International Power Co.,Ltd.(hereinafter referred to as Shier Chang),so the use effect is good.

关 键 词：加速度计 轴承 频谱分析 状态检修 

分 类 号：TH133.3[机械工程—机械制造及自动化]