| 摘要 |
PURPOSE:To prevent securing pins from being damaged due to exposure to a corrosive atmosphere, by fitting both the end faces of the coupled portions of a turbine blade and a rotary support disc with plates which cover the ends of the securing pins. CONSTITUTION:The fork-like part 21a of a turbine blade 21 is engaged with that 22a of a rotary support disc 22 so that the turbine blade is planted in the peripheral part of the rotary support disc 22. Securing pins 23 are inserted into the coupled parts of the blade 21 and the disc 22 so that the pins extend through the fork-like parts 21a, 22a and keep them from separating from each other. Cover plates 26 are fitted in tapered grooves 24, 25 to cover both the ends of the securing pins 23. To fit the cover plates 26, they are pushed by hold-down plates 27. |
