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依据发动机的异常响声来判断机器故障,是一件比较复杂的工作,因为发动机运转时,正常噪声与异常响声混杂在一起,各种不同故障产生的敲击声没有明显的特异性,所以难以区分和判断。下面就谈谈主轴承,连杆轴承的异响特点及诊断方法: 1.听诊部位 主轴承异响应听诊机体下部,靠近曲轴箱分开面处(单缸机在后盖处听诊)。连杆轴承异响应听诊机油加注口,连杆运动部位。
It is a complicated task to judge the machine fault based on the abnormal noise of the engine. Because the normal noise and the abnormal noise are mixed together when the engine is running, there is no obvious specificity of the percussive sound generated by various faults, so it is difficult to distinguish And judge. Here to talk about the main bearing, connecting rod bearing abnormal sound characteristics and diagnostic methods: 1. Auscultation site main bearing abnormal response auscultation lower body, near the crankcase separation surface (single-cylinder machine in the back cover auscultation). Different response of connecting rod bearing auscultation oil filling port, connecting rod moving parts.