POTATO HARVESTER Russian patent published in 2008 - IPC A01D17/00 

FIELD: agriculture.

SUBSTANCE: combine contains digging blade, separating device in form of rod-shaped elevators, separator of potato tops, unloading conveyor, two disks rigidly fixed on shaft thus on circle concentric with the rim of basic disks are placed the rods with possibility of their shift in a radial direction, the rod-shaped tuber receiving elevator is fixed on them. Disks are supplied with spade bugs and established with an interval corresponding to width of placing of potato tubers in a nest. The rod-shaped tuber receiving elevator also is fixed on placed two rolls above the disks with possibility of their movement on the frame in a horizontal direction. The tusk is executed bow-shaped and it is placed between disks in their back bottom part with curvature radius corresponding to radius of disks. Over the tusk at an angle to horizon with bigger rolling angle of tubers is located elevating rod-shaped elevator with formation possibility between branches of the elevators of the channel narrowed to top. On a site between the back roller of the rod-shaped tuber-receiving elevator and drive-shaft of the elevating rod-shaped elevator, last has a zone for rolling of tubers on the rod-shaped tuber-receiving elevator. The inclination angle to horizon of the elevating rod-shaped elevator is regulated. To the upper branch of the elevating rod-shaped elevator, by means of directing roll, placed above and behind the drive-shaft of the elevating rod-shaped elevator, the branches of the potato vine belts fixed with an interval of 12 cm on the tuber receiving elevator canvas are pressed.

EFFECT: operational indicators improve and damage of tubers decreases.

1 dwg