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Treatment of Nonconcentric Shaft Coupling Bolt Holes of #3 Turbine and Generator In Longtan Hydropower Station
Author(s): 
Pages: 14-16
Year: Issue:  3
Journal: GUANGXI ELECTRIC POWER

Keyword:  水轮机发电机联轴联轴螺栓孔不同心镗孔处理;
Abstract: 龙滩水电站3号水轮发电机组水轮机、发电机联轴螺栓孔偏差导致两轴不能联接,检查后发现主要是由发电机下端轴螺栓孔在圆周向分布和径向分布上均存在偏差值超标所引起,通过对水轮机、发电机轴进行纠偏镗孔处理,解决了联轴螺栓孔不同心的问题;同时通过镗孔前检查,调整主轴安装方位,也解决了机组轴线问题.
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