Overload stepless driving device capable of eliminating axial deviation for large roller surfacing remanufacturing

The invention discloses an overload stepless driving device capable of eliminating axial deviation for large roller surfacing remanufacturing and belongs to the technical field of large roller surfacing remanufacturing automation. The overload stepless driving device capable of eliminating axial deviation for large roller surfacing remanufacturing comprises a displacement sensor device, a telescopic universal coupling 2 and a chuck. According to structural features, the center of the chuck is connected with the immobile side of the universal coupling 2, the other side of the universal coupling 2 is connected with a driving shaft of a roller to be machined, the two sides of the lower end of the roller to be machined are provided with a static dual-bracket hydraulic lifting cylinder and a dynamic dual-bracket hydraulic lifting cylinder, a detection signal output port of the displacement sensor device is connected with a detection signal input port of a control device 12 through an amplifying circuit and a filte