矿井多绳摩擦提升机在启、停机瞬间振动异常,对提升机的提升传动系统进行了振动测试。通过振动时域和频谱图分析,发现由于提升机工作环境潮湿,从而导致摩擦轮和主绳之间摩擦系数降低,摩擦轮和主绳之间摩擦力不足和主绳的张力交变导致自激振动。采取清理主绳和摩擦轮上的污物的措施,提高摩擦力之后,自激振动现象消失。 Mine multi-rope friction hoist in the opening and shutting down the moment of abnormal vibration, hoist lifting transmission system vibration test. Through the vibration time-domain and spectrogram analysis, it is found that due to the damp working environment of the hoist, the friction coefficient between the friction wheel and the main rope is reduced, the friction between the friction wheel and the main rope is insufficient and the tension of the main rope alternates, vibration. Take measures to clean the main rope and the friction wheel to improve the friction, self-excited vibration disappears.