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广西壮族自治区上林县五村电站装有两台完全相同的630千瓦发电机,第一台已运行5年,轴承还未更换;第二台投入运行时间不长,发电机就发生强烈振动,经过多次更换轴承,这种现象仍重复出现。起初认为这是由安装质量差而造成,但重新调整水平和同心度后仍然没有解决问题。后来经过详细观察轴承的损坏情况,发现并不是一般的机械磨损,而是轴承
Shanglin County, Guangxi Zhuang Autonomous Region, five village power station equipped with two identical 630 kilowatts generator, the first has been running for 5 years, the bearings have not been replaced; the second put into operation not long, the generator on the occurrence of strong vibration, After repeated replacement of bearings, this phenomenon is still repeated. At first thought it was caused by the poor quality of the installation, but the adjustment of level and concentricity still did not solve the problem. Later, after careful observation of bearing damage and found that not the general mechanical wear, but the bearings