STEAM TURBINE ROTOR STRUCTURE, STEAM TURBINE, AND METHOD FOR FIXING STEAM TURBINE ROTOR BLADE

摘要

PROBLEM TO BE SOLVED: To provide a steam turbine rotor structure, a steam turbine, and a method for fixing a steam turbine rotor blade for easily fixing the lastly implanted rotor blade and for repeatedly using a member for fixing the rotor blade.;SOLUTION: The steam turbine rotor structure is provided with the turbine rotor 11 having a groove 12 of an implanting part extending in a circumferential direction and a notch part 13 continuing to the groove 12 of the implanting part on its outer peripheral surface, a plurality of the rotor blades implanted in the groove of the implanting part, and a blade fixing member 200 fixing the lastly implanted rotor blade 100 in the notch part 13. The blade fixing member 200 is provided with fitting protruding parts 104 and 105 to be respectively fitted in a fitting recessed part 18 formed in a prescribed inner wall of the notch part 13 and a fitting recessed part 103 formed between a blade part 102 of the rotor blade 100 and the implanting part 101 for fixing the lastly implanted rotor blade 100.;COPYRIGHT: (C)2007,JPO&INPIT