200 MW机组常采用两转子三支点的支承方式,并采用带止口的刚性联轴器。该联轴器止口磨损后,间隙变大。联轴器销子在反复拆装后,销孔和销子也容易磨损和拉伤,破坏了配合尺寸,使联轴器圆周对中不好,导致运行时机组发生振动。文章通过对一次实践操作过程的描述和总结,全面介绍了该工艺过程,对今后处理类似缺陷具有指导意义。 200 MW units are often supported by two rotors three fulcrums, and the use of rigid coupling with a stop. The coupling stops wear, the gap becomes larger. Coupling pin after repeated disassembly, pin holes and pins are also easy to wear and tear, undermining the size with the coupling so that the circle around the poor, resulting in vibration occurred during operation of the unit. Through a description and summary of a practical operation process, the article provides a comprehensive introduction of the process and has guiding significance for handling similar defects in the future.