DISC HARROW Russian patent published in 2023 - IPC A01B21/08 A01B7/00 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to tillage tools, which use disk working bodies. The disc harrow includes towing device 1, frame 2 with transverse bars 3 fixed on it, on which disc working bodies 4 and 5 are mounted on autonomous racks in frontal rows along the width of the grip, having an angle of attack and inclined to the vertical plane. The rows are symmetrically oriented by convexity or concavity to the longitudinal axis of the harrow. Each subsequent disk 4 and 5 is displaced in the transverse direction relative to the previous one, with the formation of a paired row, in such a way that it shifts the soil into the furrow of the previous one. Discs 4 and 5 symmetrical about the longitudinal axis of the harrow are located at the same distance from it. The disks 5 of each front row closest to the longitudinal axis of the harrow are installed in such a way that on the first and second bars 3 disks 5 are oriented with their concave or convex sides, respectively, in opposite directions, and in the subsequent adjacent paired rows, disks 5 are installed respectively opposite to disks 5 of the first pair row. In the front rows, disks 5 are oriented with the possibility of excluding their opposite orientation, and their total torque is determined by the ratio: R”_l2l_cl2 + R”_l31l_cl31 + R”_l32l_cl32 = R”_p1l_cp1 + R”_p41l_cp41 + R”_p42l_cp42, where R”_l2, R”_l31, R”_l32, R”_p1, R”_p41, R”_p42 is the horizontal component of the forces acting on the disks in the horizontal plane; l_cl2, l_cl31 , l_cl32 , l_cp1 , l_cp41 , l_cp42 is the shoulder of the corresponding force.

EFFECT: increase in the uniformity of soil cultivation.

1 cl, 3 dwg