COMBINED TOOL FOR POTATO GROWING Russian patent published in 2015 - IPC A01B17/00 A01B49/00 A01D13/00 

FIELD: agriculture.

SUBSTANCE: combined tool for potato growing comprises the plough body with a shortened mouldboard mounted on the frame, and a drive vertical rotor with the hub placed behind it. The upper part of the hub is fixedly attached to the support disc. The lower part of the hub comprises the working bodies of the first tier on the multiple-thread helical line - lifting blades, in the middle part the working bodies of the second tier - the grinding elements in the form of ripper fingers. The ripper fingers comprise the bearing rods rigidly fixed in the lower surface of the support disc, with removable working bodies attached to them, made in the form of wedge-shaped prisms or cutting blades. A part of the rod fixed to the disc is not less than 1/4 of its length. The third tier is located above the hub and the support disc and consists of inclined beater planks rigidly secured at an angle to the vertical axis of the rotor. The lower ends of the beater planks are attached to the lower part of the hub, the middle part - to the bearing rods, and are interconnected with the upper ends by a ring. In the potato digging mode the digging plates are mounted on the bearing rods and the inclined beater planks, in the form of a polygon. The lower side of the polygon is set with a gap increasing from the rotor axis, and the lateral is parallel to its axis.

EFFECT: increased degree of layer crumbling in the basic tillage mode, and reduction of damage to tubers when digging them out, reduction of labour intensity for changeover of the tool, and increase in reliability of elements of the structure.

3 cl, 6 dwg