Stepless drive arrangement of axial offset heavy load can be eliminated in large -scale roll build -up welding refabrication

Stepless drive arrangement of axial offset heavy load can be eliminated in large -scale roll build -up welding refabrication belongs to the automatic technical field of large -scale roll build -up welding refabrication, especially relates to a stepless drive arrangement of axial offset heavy load can be eliminated in large -scale roll build -up welding refabrication. The utility model provides a stepless drive arrangement of axial offset heavy load can be eliminated in large -scale roll build -up welding refabrication. The utility model discloses a displacement sensing device, telescopic universal joint 2 and chuck, its structural feature chuck center links to each other with universal joint 2 motionless one side, the universal joint 2 opposite side with wait that it links to each other toprocess the roll drive shaft, wait to process roll lower extreme both sides and be provided with static two bracket hydraulic pressure and lift the jar and lift the jar with the two bracket hydraulicpressure of developments,