Rotor equipped with replaceable self-locking sealing assembly, turbine and gas turbine

The present invention provides a rotor, a turbine, and a gas turbine including the same, the rotor comprising: a pair of wheel disks that rotate with respect to a virtual axis that passes through thecenter and that are arranged side by side in the axial direction; a sealing assembly arranged between the pair of wheel disk; a fixing part arranged on the sealing assembly and used for fixing the sealing assembly on the wheel disks. Each wheel disk is provided with a sealing groove in one side surface opposite to the other adjacent wheel disk, and a head groove is formed in the outer side of eachsealing groove by taking the radius direction of the wheel disk as a reference. The sealing assembly comprises a body, wherein one end of the body is inserted into a head groove from the outer sidesof the wheel disks and then is inserted into the sealing grooves; and a seal head which is attached to the other end of the body and restricts movement of the body by being mounted on the inner wall of the head groove. 本发明提供一种转