OPERATING TOOL OF SOIL TILLAGE DEVICE Russian patent published in 2013 - IPC A01B33/02 A01B33/10 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agricultural machine building, in particular, to rotary operating tools of soil tillage devices. The operating tool comprises a shaft with rigidly fixed blades. Blades have rectilinear and elliptical cutting edges. The rear edge of each blade is made in the form of the elliptical curve and stretches via the spike of the blade and the rear end of its rectilinear edge. The direction of bulges in the elliptical and rear cutting edges is same, and their length is equal. Blades are fixed in pairs on opposite faces of the shaft with displacement by 90°. The spike of one blade and the rectilinear cutting edge of the other pair of blades are in the same plane perpendicular to the axial line of the shaft.

EFFECT: structural solution makes it possible to evenly till soil and provides for stable operation of a soil tillage device at slopes.

3 dwg