Constant-tension wire winding device and robot

The invention relates to the field of sludge treatment equipment, and particularly relates to a constant-tension wire winding device and a robot. The constant-tension wire winding device comprises a wire winding support, a wire winding barrel, a wire winding shaft, a bearing, a magnetic powder clutch, a driven chain wheel, a wire winding motor, a driving chain wheel, a chain and a cable, wherein awire pressing mechanism is arranged on the wire winding support and comprises a wire pressing supporting rod, a wire pressing side plate, a lug base, a wire guide roller, a spring, a connecting base,a bearing and a wire guide shaft; the robot comprises a rack; a control system, a shoveling and digging mechanism and a walking mechanism are arranged on the rack; the constant-tension wire winding device is arranged on the rack; the cable winds around the wire winding barrel; the two ends of the cable are connected with the control system and a water control box; a garbage basket lifting mechanism is arranged on the rack