Shaftless screw conveyor

The shaftless screw conveyor comprises a machine frame and a conveying cylinder, a cover plate is arranged on the top of the conveying cylinder, two square holes are formed in the cover plate, two discharging holes are formed in the bottom of the conveying cylinder, a rotating hole is formed in the side wall of the conveying cylinder, a speed reducer is arranged on the side wall of the conveying cylinder, and a screw rod is arranged on the speed reducer. The first spiral blade and the second spiral blade are arranged in the rotating hole, the speed reducer is connected with a motor in a transmission mode, an output shaft of the speed reducer penetrates through the rotating hole and is arranged in the rotating hole in a rotating mode, and a first connecting disc is arranged at the end of the output shaft of the speed reducer. Materials move forwards along with the spiral blades under the action of centrifugal force and friction force of the cylinder wall and are evenly discharged and collected through the disc