ROTARY TYPE DEVICE FOR LOOSENING SOIL Russian patent published in 2013 - IPC A01B35/26 A01B21/08 A01B39/18 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machinery industry, in particular to rotary tillage tools. The tool comprises a frame, a bracket of automatic coupling, support wheels. On the frame four batteries are mounted. The batteries are mounted in two rows. On the batteries the units of rotor discs are mounted. The disc has a shape of a plane polygon with a cutting edge. On each disc the needles of large cross-section with blades are fixed. The cutting angle of the blade is γ=45…60°. The sharpening angle of the blade is α=20…30°. On the mounting axis of the discs the sprockets are mounted with different numbers of teeth. A chain is mounted on the sprockets.

EFFECT: constructive implementation of the tillage tool enables to destroy weeds, to improve quality of treatment of the field surface and to maintain the soil moisture.