Anti-winding propelling device and anti-winding method for unmanned clean-keeping ship

The invention discloses an anti-winding propelling device and an anti-winding method for an unmanned clean-keeping ship in the technical field of unmanned clean-keeping ships, and the anti-winding propelling device comprises an unmanned clean-keeping ship body; a supporting bearing is arranged on the right side of the unmanned cleaning ship body, a mounting shaft is arranged on the supporting bearing, and a propeller is arranged at the right end of the mounting shaft; a bottom groove is formed in the bottom of the unmanned cleaning ship body, and a shell is arranged in the bottom groove; a motor is arranged at the top of the left side of the shell, the left end of a mounting shaft penetrates through the right side of the shell and is rotationally connected with the inner wall of the left side of the shell through a bearing, first belt wheels are arranged at the ends, located in the shell, of an output shaft of the motor and the mounting shaft, and a first belt is connected between the two first belt wheels; a