Hull polishing device

The invention relates to the technical field of ships, in particular to a hull polishing device which comprises a conveying belt, first roll shaft supports and second roll shaft supports, the first roll shaft supports are arranged on the two sides of the conveying belt, roll brushes are arranged on the opposite sides of the first roll shaft supports, and driving motors are arranged on the other opposite sides of the first roll shaft supports. According to the ship surface polishing device, a ship is placed on the conveying belt, the conveying belt reciprocates, the driving motor drives the roller brushes to rotate through the chains by means of the roller brushes on the first roller shaft supports on the two sides of the conveying belt, the surface of the ship body is polished, and meanwhile the driving motor on the second roller shaft support drives the cleaning assembly to clean chippings; and a plurality of roller brushes and cleaning assemblies can be arranged on the two sides of the conveying belt to imp