TILLAGE DISK Russian patent published in 2017 - IPC A01B23/06 A01B15/16 

FIELD: agriculture.

SUBSTANCE: tillage disk contains the smooth central surface and the corrugated surface on its outer ring. The straight lines of the corrugation ridges on the convex side of the disk are made in the form of straight cone surface generatrices. The lines of the corrugation ridges on the concave side of the disk are made in the form of arcs with the constant curvature radius the same as that on the concave side of the smooth spherical surface of the disk. The corrugation ridges on the convex side of the disk are made tangent to the convex spherical surface of its central part. On both sides of the disk, the lines of the corrugation ridges and recesses are smoothly conjugated by the lateral surfaces of the corrugations located at an angle larger than 90° one to the other. The annular section line of the corrugated part of the disk is close to a sinusoid. The disk blade line is made with the breadth not less than 30 mm, and the angle between the ridges of the adjacent corrugations on one side of the disk is not less than 18°. The diameter of the smooth central part of the disk does not exceed 0.6 of the largest diameter of the disk.

EFFECT: improving the stability of the disk operation and increasing the soil crumbling intensity, simplifying its production.

3 cl, 3 dwg