Overview of shaftless screw conveyor

The conveying principle of the non-axis screw conveyor is basically the same as that of the general screw conveyor, except that there is a difference between the screw body with and without shaft in structure. The shaftless screw conveyor is a cylindrical spiral body welded by thick spiral ribbon-shaped blades. The two ends of the spiral body have short axes or one side has short axes. The short axes of the driving end of the spiral body are connected with the driving mechanism, and the shaftless spiral body rotates through the driving mechanism. When rotating, the spiral body slides into contact with the lining plate at the bottom of the inner wall of the chassis.

Working Principle of shaftless screw conveyor

When the non-axial screw conveyor works (rotates), the spiral body is just like a rotating spiral shaft, and its spiral blades drive the material to move along its axial direction. When the spiral body rotates continuously, the material is also transported continuously, so that the material is continuously transported to the outlet and discharged outward.

When there is material in the non-axis screw conveyor, the material will form a protective layer between the spiral body and the inner wall of the chassis, so that the spiral body does not directly contact with the inner wall of the chassis, so the abrasion to the chassis and spiral blades is relatively small. When the spiral body rotates by air, the spiral body slides in contact with the lining plate at the bottom of the inner wall of the chassis, and the lining plate adopts reasonable materials and structures, which can reduce the wear on the spiral blades.

The non-axial screw conveyor has small spiral motion resistance and large bearing capacity, which can handle quite mixed materials. There are few components of the shaftless screw conveyor, which makes the maintenance required by the conveyor smaller. Due to the design without intermediate shaft, the failure caused by blockage in the conveying process of materials is effectively prevented.