对于一个机组已运行相当长时间的水电站来说,应该合理更换转轮,在这项工作中如何提高组装质量是一个很现实和有意义的具体问题。一、转轮更换工作的关键—主轴轴线和转轮止口中心线的同轴度为最小1.新转轮与主轴组合,应使主轴轴线和转轮的止口轴线同轴由于转轮材质不均匀,和加工等原因,引起转轮重心偏离旋转中心时就会产生相对于旋转中心的不平衡的离心 For a hydropower station that has been operating for a long time, it is reasonable and practical to improve the quality of assembly by changing the wheel properly. First, the key to change wheel work - spindle axis and runner center line of the hub for the minimum 1. The new wheel and the spindle combination, the spindle axis should be coaxial with the axis of the wheel hub As the wheel material Uneven, and processing and other reasons, causing the runner center of gravity deviate from the center of rotation will produce relative to the center of rotation imbalance of centrifugation