Gas turbine rotor is obturaged and is encircled centering structure

The utility model discloses a gas turbine rotor is obturaged and is encircled centering structure, the outside that be used for obturaging the part to the annular that the gas in the gas turbine goes on sealing on the rotor blade of gas turbine rotor is located to the cover, sets up the part of obturaging be used for with on the quick -witted casket of part locking at gas turbine of obturaging so that obturage installation limit surface and the laminating of quick -witted casket closed -up surface of part a plurality of locking pieces and set up at quick -witted casket and obturage and be used for on the part adjusting so that a plurality of positioning bushing that rotor axis and the axis of workpiece that obturages coincide mutually the axial position of the part of obturaging. The utility model provides a gas turbine rotor is obturaged and is encircled centering structure, it is face -to -face just to the contact to rely on the annular to obturage part and quick -witted casket, makes the decentered power o