水轮机导水机构连杆结构改造  

Renovation of the Connecting Rod Structure inWater Guiding Mechanism of Hydro-turbines

作　　者：高杨 高锐 呙涛 戴宏佳 GAO Yang;GAO Rui;GUO Tao;DAI Hongjia(Loushui Hydropower Co.,Ltd.,Hubei Energy Group,Enshi 445801,China)

机构地区：[1]湖北能源集团溇水水电有限公司,湖北恩施445801

出　　处：《水电与新能源》2024年第8期47-50,共4页Hydropower and New Energy

摘　　要：导叶连杆是导水机构的传动机构,它将控制环的操作力矩传递到导叶拐臂上,控制导叶开度;通过调节连杆的长度,可补偿导水机构各部件的尺寸误差,使所有导叶开口度趋于平均,并能在一定范围内调整导叶立面间隙,防止机组蠕动。导叶连杆结构有叉头传动、耳柄传动、连板偏心销传动等形式,不同机组适用于不同的传动结构形式,选择合适形式能使机组有效减小振动、提高效率、增强安全性。The guide vane connecting rod is the transmission structure of the water guiding mechanism,which transmits the operating torque of the controlling ring to the guide vane arm and controls the opening of the guide vane.By adjusting the length of the connecting rod,the dimensional errors of the components of the water guiding mechanism can be compensated,so that the opening of all guide vanes tends to be even.Also,it can adjust the vertical clearance of the guide vanes within a certain range to prevent creeping of the unit.The guide vane connecting rod structure is of various forms such as fork head transmission,ear handle transmission,and connecting plate eccentric pin transmission.Different transmission forms are suitable for different units.Choosing a suitable transmission structure form can effectively reduce the vibration,improve the efficiency,and enhance the safety.

关 键 词：导叶传动机构 导水机构 导叶开口度 立面间隙 

分 类 号：TK730.324[交通运输工程—轮机工程]