| 摘要 |
PURPOSE:To reduce the time for binding by coupling a dynamic balance correction weight to part of a groove provided on the boss section of a turbine impeller and binding it with the shaft hole of an impeller shaft, by squeezing and caulking. CONSTITUTION:Grooves 10a, 10b are provided on the boss section of a turbine impeller 9, and after a dynamic balance correction weight 14 is coupled at a proper positionof the groove 10b, it is inserted into the shaft hole of an impeller shaft 11 and is bound by squeezing and caulking. Since the dynamic balance correction weight 14 is thus fitted and also caulked to the turbine impeller 9, no dynamic balance correction is required after binding, and the time for binding can be reduced. |
