| 摘要 |
PURPOSE:To facilitate assembly and disassembly by allowing a semicircular annular projection part formed onto a horizontal key body which supports a lower- half nozzle diaphragm to be engaged with a semicircular dovetail formed onto the lower-half nozzle diaphragm. CONSTITUTION:A semicircular annular projection part 21 is formed onto one surface of a horizontal key 20 which supports a lower-half nozzle diaphragm 1a, and said semicircular annular projection part 21 is engaged with a semicircular dovetail 22 formed on the lower-half diapharagm 1a. Therefore, the horizontal key body 20 can be released from the lower-half nozzle diaphragm 1a through turning, and the lower-half nozzle diaphragm 1a can be assembled and disassembled with a turbine rotor in assembled state. |
