TURBINE ROTOR, TURBINE, AND METHOD FOR ATTACHING SEAL PLATE

摘要

This turbine rotor (10) is provided with: a rotor shaft part (11A); a plurality of moving blades (21) secured to the outer periphery of the rotor shaft part (11A); and a seal plate (41) for sealing off the flow of air in an axial direction (Da), the seal plate (41) being fitted into a groove (23d) formed in a platform (23) of the moving blades (21), and the groove (23d) being recessed outward in the radial direction and extending in a peripheral direction (Dc). A tool hole (42) into which a removing tool (90) can be inserted is formed in, but does not pass all the way through, an outside surface (41o), the outside surface (41o) being the surface of the seal plate (41) on the side opposite an inside surface (41i) that faces the blade base (25) of the moving blades (21).