THREE DISK WORK TOOL Russian patent published in 2009 - IPC A01B23/06 

FIELD: agriculture.

SUBSTANCE: work tool consists of disk with assembling aperture in center and circular cutting edge around periphery, and of teeth. Spherical disks of smaller diameter are arranged symmetrically on both sides of a flat disk. All disks are pivotally set on a bushing which is journaled in the central aperture. Teeth are made in form of small disks and consist of one spherical and one flat dick of the same diameter. Tooth disks are arranged in pairs symmetrically around circumference of bigger spherical disks so, that axes of all pairs of smaller disks are rigidly fixed in spherical disks. Disks on axes are pivotally mounted up to a stop. The stop is rigidly fixed on axes of pair disks in such a way, that working edges of smaller disks do not contact surfaces of spherical disks. The smaller disks are arranged alternately: first - flat disk, then spherical, or vice versa and also with alternation of pairs. Diameters of smaller pair disks differ from the neighbour pair by the "golden section" - 1.61 times; these pairs are arranged also alternating with smaller ones. Each successive axial distance of each pair from the plane of cutting edges of spherical disks differs from the preceding one by the golden section" - 1.61 times.

EFFECT: upgraded quality of tillage due to increased efficiency of process of tilling and mixing soil.

3 dwg