Regulating valve copper bush dismounting tool

The utility model belongs to the technical field of nuclear power station regulating valve maintenance, and particularly relates to a regulating valve copper bush dismounting tool which comprises a valve body, a copper bush, a backing ring, an anti-rotation bolt, a puller plate, a copper bush tray, a bolt, a thrust bearing and a nut. An anti-rotation bolt is mounted on the puller disc; threaded holes for mounting bolts are formed in the centers of the surfaces of the puller disc and the copper sleeve tray, one end of each bolt penetrates through the threaded hole in the center of the puller disc to be fixed, and the other end of each bolt penetrates through an inner hole of the copper sleeve tray and is fixed through a nut; a thrust bearing is further arranged between the puller disc and the nut; the backing ring is arranged on the outer wall of the copper sleeve, and the puller disc is arranged on the outer side of a reinforcing rib of the valve body. The utility model aims to solve the technical problems of