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

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. Combind harvester comprises trimming ploughshare (5), separating bar conveyors (6 and 11), clod removing drum. In front part of machine disk knives (2) are arranged on frame (3) in space between rows of plantations 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 of combined harvester. Above lower bar conveyor (6) there is upper bar conveyor (11) with function of clod removing drum. Bars speed V2 is greater than speed of bars V1. Outlet blocks of the lower bar stock (6) and upper bar conveyor (11) are located in inner cavity of indented cylinder (15), which is drum made of annular rods (16) fixed with circular shells. Ring rods (16) are segmented and are interconnected by arcs to which the blades are mounted, mounted on arcs at an inclination to the horizontal plane with an angle of inclination equal to the rolling friction angle of the tubers. Indented cylinder (15) is coupled to loading drum (20) having annular bars (21) and gripping strips (22). Distance between annular bars (21) is taken from the condition of preventing the passage of tubers between them. Loading conveyor (23) is mounted in the inner cavity of indented cylinder (15) and loading drum (20), which has end (24) and front (25) supports and chain drive (26). Loading conveyor (23) is coupled to pitched tray (27). Drive of all mechanisms of the combine is made from tractor's power take-off shaft through cardan gear (28).

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

1 cl, 2 dwg