ROOTS CLEANING CONVEYOR Russian patent published in 2008 - IPC A01D33/08 

FIELD: agriculture.

SUBSTANCE: cleaning conveyor comprises frame with mounted sectors, multiple flight screw, rollers with spiral winding, crate with T-section planks, board and unloading opening between the two extreme crate planks. In the unloading opening zone the spiral winding of the upper cleaning roller is made with increasing pitch. In the cleaner unloading opening zone in the gap between the roller and the T-section plank a plate with variable width is placed so that its width and distance from the plate surface to the screw rotation axis are decreasing in the direction of the unloading opening. The wide end of the plate is placed relative to the screw rotation axis at the distance exceeding by 40-60 mm the total of the screw radius and the roller diameter and the spiral winding of the roller which is adjacent to the plank in the unloading opening zone is made with gradually decreasing height.

EFFECT: reducing roots damage.

3 dwg