TURBOMACHINE ROTOR Russian patent published in 2009 - IPC F01D5/06 

FIELD: engines and pumps.

SUBSTANCE: invention relates to turbine production and can be used in designing and fabricating build-up shafts of drum type for steam turbines. Turbomachine rotor comprises drum-type shaft and shanks fitted along one axis. Every shank is pinned to the shaft, pin inner ends being screwed into shaft end face seats, while pin outer ends have nuts screwed thereon to interact with the flange thrust surfaces and pin central parts being fitted into shank flange cylindrical holes. Shaft end face has axial mounting ledge mating mounting recess made on shank flange. Pin outer end faces have conical threaded seats. Central conical part of every pin features smaller cone diametre on the nut side and is fitted in compensating sleeve. The latter features inner conical surface mating aforesaid pin central conical part and outer cylindrical surface that, in its turn, mates shaft end face and flange hole surfaces.

EFFECT: higher reliability of rotor.

2 cl, 4 dwg