TURBINE MACHINE ROTOR Russian patent published in 2015 - IPC F01D25/16 

FIELD: machine building.

SUBSTANCE: turbine machine rotor contains a ceramic bearing, two bushings installed on a shaft, a spacer ring installed between bushings and contacting with them by end faces, and also an end collar implemented on a shaft. The spacer ring is made of the material with the coefficient of thermal expansion, greater than that of the material of bushings, and the end collar contacts by its end face with one of bushings. Bushings with the spacer ring are fixed in the axial direction by means of the nut installed on the shaft, and between the nut or the end collar and the nearby bushing the spring is installed. The internal ring of the ceramic bearing is installed on bushings with a gap with reference to the spacer ring. The contacting surfaces of bushings and the internal ring of the ceramic bearing are implemented conic with reference to the longitudinal axis of the shaft.

EFFECT: invention allows to simplify mounting and demounting of the internal ceramic ring of the bearing with keeping of its required sitting on the steel shaft, improve reliability of a rotor of a turbine machine.

1 dwg