FIELD: engines and pumps.
SUBSTANCE: device for axial retention of rotor disc flange includes rotor disc, annular flange and locking ring. Annular flange includes annular bottom radially pressed to outer wall of slot and shank which radially protrudes from bottom inside the slot made in the disc. Locking ring is located in rotor disc slot and has outer axial surface, inner axial surface and outer radial surface. Outer axial surface of locking ring is borne against inner axial surface of rim, and as a result, the first axial force appears. Inner axial surface of locking ring is borne against outer axial surface of shank, and as a result, the second axial force acting in the direction opposite to the first axial force appears. Outer radial surface of locking ring has annular projection and is borne against inner radial surface of flange bottom, and as a result, radial force located in the plane offset along the axis relative to radial plane passing through gravity centre of locking ring appears. Other inventions of the group refer to turbine of turbomachine, as well as to turbomachine containing the above device.
EFFECT: invention allows improving reliability of device for axial retention of flange.
10 cl, 2 dwg
