POTATO HARVESTER Russian patent published in 2018 - IPC A01D17/00 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building. Combine harvester contains cropping blade (5), separating bar conveyor (6), crushing roller, and in the front part, on frame (1) of the combine, disc blades (2) are placed in the aisle rows of tuberous roots. Diameters of knives (2) have been taken from condition of cutting formation in vertical plane at depth of location of tuberous roots. Cutting blade (5) is connected to lower bar conveyor (6) having speed V1 and hinged on frame (1) of combined harvester. Drive drum of lower bar conveyor is fitted inside drum conveyor cavity (17). Above lower bar conveyor (6) loosening conveyor (11) is installed with the function of a crushing roller. On slats (12) of loosening conveyor (11), finger rippers (13) are installed at an angle to the direction of conveyor moving. Side rippers are made in the form of a series of fingers arranged in one line at an angle of 45…50° to the direction of conveyor moving. Distance between the fingers in the row is equal to the maximum size of tubers along the length. Middle rippers are made angular with an angle at the apex of 45…50° and the distance between the fingers, equal to the maximum size of the tubers along the length. Distance between the rows of side rippers fingers and the medium rippers is l, l l_max length of tubers. Fingers of the finger rippers are made of resiliently elastic wear-resistant material, and the bars of the bar conveyor are covered with elastic material. Exit blocks of ripper conveyor (11) and bar conveyor (6) are located in the inner cavity of roller conveyor (17). Moving speed of V₂ laths of the ripper conveyor are greater than the speed V₁ moving rods of raddle chain.

EFFECT: provides reduced traction resistance, complete separation of tubers from soil, increased productivity.

1 cl, 2 dwg