Photoelectric composite cable take-up and pay-off device for high-power underwater robot

The utility model provides a photoelectric composite cable take-up and pay-off device for a high-power underwater robot. The photoelectric composite cable take-up and pay-off device comprises a frame, a driving motor installed on the frame, a coupler and a winding reel. The hollow shaft and the solid shaft are arranged at the two ends of the winding drum, the electric slip ring is arranged in the hollow shaft, the photoelectric conversion module is arranged in the winding drum, a U-shaped wire pressing plate is installed at the end, provided with the solid shaft, of the winding drum, and the photoelectric composite cable is fixed to the winding drum through the U-shaped wire pressing plate after being wound around the winding drum. The solid shaft is connected with a driving motor through a coupling; one end of the photoelectric composite cable is connected with the underwater robot, the other end of the photoelectric composite cable is wound on the winding drum and then penetrates into the winding drum, a ca