TWO-LEVEL TILLAGE DUCKFOOT SHOVEL Russian patent published in 2017 - IPC A01B49/00 A01B39/18 A01B39/20 A01B35/20 A01B15/02 A01D43/12 

FIELD: agriculture.

SUBSTANCE: two-level tillage duckfoot shovel contains cutting parts fixed on its rack and arranged one above the other. The upper part is a ploughshare made in the form of isosceles triangle for cutting aerial parts of weeds and soil surface levelling. The upper cutting part has a curved tip in its front part, the upper part of which is made on Mobius surface, and spring teeth along its rear part. The lower cutting part is made in the form of a tillage duckfoot ploughshare equipped with a tip attached to its toe. The toe of the lower duckfoot ploughshare is shifted back from 60 to 70 mm relative to the toe of the upper ploughshare. The upper and lower ploughshares are sharpened, the upper ploughshare having smaller thickness. The upper ploughshare has the blade opening angle of 60°, and the lower one - 70°. The upper ploughshare is made with the possibility to move up and down the rack.

EFFECT: creation of a levelled surface without furrows and ensuring stable processing depth.

4 cl, 4 dwg, 1 tbl