| 摘要 |
PURPOSE:To prevent the interference in the final embedding blade for achieving the enhancement in efficiency and reliability by dividing only one final embedding blade into two parts, and after the blade root part out of them has been embedded n a rotating body, joining the two-divided remaining blade end part on the divided surface thereof. CONSTITUTION:Only one blade 2 of a turbine blade 1 which is to be finally embedded in the disk plate is divided in two parts in the vicinity of its center. And after the blade root part 3 of the divided blade 2 has been embedded in the axial groove on the rotating body side, the two-divided remaining blade end part is joined on the division surface of the blade root part 3. Thus, since the interference in the final embedding blade can be prevented, the blade profile optimum in aerodynamic performance and vibrational strength can be adopted. Accordingly, turbine moving blades excellent in efficiency and high in reliability, especially turbine long blades can be obtained.
|
