提升机齿轮箱振动频谱诊断中边频分析方法

Sidebands Analysis Methods in Vibration Spectrum Diagnosis of Mine Winder Gearbox

提升机齿轮箱的振动频谱中存在丰富的低频边频带。讨论了通过频谱细化技术提高特征频率分辨率,并联合使用倒频谱分析技术对低频边频成分进行分离提取,从而提高了故障诊断准确性。

The mine winder vibration spectrum has complicated low frequency sidebands.This paper introduced spectrum zooming method to improve characteristic frequency resolution,and with the joint use of ceptrum analysis method to extract low sideband frequencies,so the accuracy of fault diagnosis results were improved.