TURBOMACHINE ROTOR AND METHOD OF ITS ASSEMBLY Russian patent published in 2015 - IPC F01D5/30 

FIELD: machine building.

SUBSTANCE: turbomachine rotor comprises a rotating element with a blade installed on it. The blade comprises a butt with projecting structure forming the rest surface for the butt in respect to the rotating element due to the action of the force directed radially inside. The projecting structure determines the maximal gap between the rest surface and the rotating element. The butt can move radially, herewith in the radial outer position of the projecting structure the gap between the rest surface and the rotating element is maximal. The rotating element comprises a groove passing in the circumferential direction in respect to the rotation axis and having the surface supporting the rest surface of the blade under the action of the force directed radially inside. Assembly of the turbomachine rotor with the above blade implies mechanical processing of the projecting structure of the blade butt to adjust the maximal gap between the rest surface and the rotating element. Then the blade is mounted on the rotating element.

EFFECT: group of inventions allows for the simplification of adjustment of the gap between the rotating element and the blade, and for the improvement of the blade processing accuracy to form the required gap between its tip and the turbomachine casing.

15 cl, 6 dwg