高速膜片联轴器所致离心压缩机试车振动故障的诊断与处理  

Diagnosis and Treatment on Vibration Malfunction of a Centrifugal Compressor Arising from High Speed Diaphragm Coupling on Test Stand

作　　者：李海鹏 孙永明 刘大为 王庆伟 

机构地区：[1]西安陕鼓动力股份有限公司,陕西西安710611

出　　处：《风机技术》2014年第1期78-82,60,共6页Chinese Journal of Turbomachinery

摘　　要：针对某高速离心压缩机在厂内试车出现异常振动,通过分析试车振动现象和振动图谱,得出膜片联轴器刚度差、联轴器横向振动频率接近转子转速频率、联轴器制造精度差并存在不平衡量是造成转子试车振动异常的主要原因。最终通过增加联轴器膜片组厚度来提高膜片联轴器刚度,改变原有膜片联接螺栓的安装方向,联轴器外圆打表找最佳平衡位置的方法,使压缩机试车振动达到标准。This paper focuses on solving the abnormal vibration problem of a high speed centrifugal compressor on a factory product test stand. By analyzing the vibration phenomenon and vibration spectrum, it is found that the superstandard vibration mainly comes from low stiffness, lateral vibration frequency close to the frequency of the rotor speed, and low manufacture accuracy and unbalance of the used diaphragm coupling. After increasing the diaphragm thickness, changing bolt installation direction and checking the excircle jerk value of the diaphragm coupling, the abnormal vibration value satisfies the standard requirement.

关 键 词：膜片联轴器 故障诊断 不平衡 膜片刚度 离心压缩机 

分 类 号：TH452[机械工程—机械制造及自动化]