(三)磨床的润滑故障 例(24) M1420外圆磨头润滑故障 有次在清洗换油后运行不到一周突然产生闷车,找不到办法将主轴瓦间隙从0.02mm扩大到0.035才能使用,否则常会闷车。主轴间隙扩大后磨床精度下降,失去了原有功能。即使这样做磨头轴承仍产生温度过高,油泡沫多且变黑。最后导致主轴严重烧伤而停车检修,产生这些问题主要原因是新购进2~#主轴油质量太差,粘度不合格,还有大量沉淀物。 (C) lubrication of grinding machine failure cases (24) M1420 cylindrical grinding head lubrication failure occurred in less than one week after the cleaning and oil change suddenly bored cars, can not find ways to expand the main bearing gap from 0.02mm to 0.035 to use , Otherwise often stuffy car. After the spindle gap is widened, the accuracy of the grinding machine is reduced and the original function is lost. Even though grinding head bearings still produce temperatures that are too high, the oil bubbles are much and darker. Finally, leading to serious spindle burn and parking maintenance, the main reason for these problems is the newly purchased 2 ~ # spindle oil quality is too poor, viscosity unqualified, there are a lot of sediment.