水轮机转轮体侧孔加工工艺研究

Examination on the Technology for Machining of Side Holes in Hydraulic Turbine Runner Hub

转轮体是水轮机的关键部件,每组侧孔加工的尺寸精度和形位精度是保证机组稳定运行的关键。从设备选用、划线、找正、半精加工、精加工、检验等方面介绍了水轮机转轮体侧孔加工工艺。

Runner hub is the key component of hydraulic turbine. The dimensional accuracy and the geometric accuracy of each set of side holes are the keystone to ensure the stable operation of the unit. Processing technology of side holes of the hydraulic turbine runner hub was introduced from the aspects of equipment selection, marking, alignment, semi-finishing, finishing and inspection.