High-strength winding drum for ship unloader

The utility model discloses a high-strength winding drum for a ship unloader, which relates to the technical field of winding drums, and comprises a bracket, a main shaft is movably inserted into the top of the bracket, the left side of the main shaft is fixedly connected with a connecting flange, the outer side of the right side of the main shaft is sleeved with an inner sleeve mechanism, and the inner sleeve mechanism comprises a fixed ring; left rods are movably connected to the outer side of the fixing ring at equal intervals through pin shafts, a top plate is movably connected to the left rods through pin shafts, a right rod is movably connected to the other end of the top plate through pin shafts, a threaded connecting ring is movably connected to the bottom of the right rod through pin shafts, and a threaded sleeve is movably inserted into the inner wall of the threaded connecting ring in a penetrating mode; the right side of the threaded sleeve is fixedly connected with a hand wheel, and the two sides