ROTARY TILLER FOR WEED CONTROL Russian patent published in 2015 - IPC A01B39/18 

FIELD: agriculture.

SUBSTANCE: rotary tool comprises a frame with support wheels and towbar hitch. On the frame two rows of four sections of the rotor discs are sequentially mounted with the ability of rotation and interconnected by chain drives. On the shafts of the rotor discs the sprockets are mounted. In the upper part of the frame the tilling depth adjusting mechanism is mounted. Each disc has a shape of flat polygonal with beams of rectangular section mounted on it. The bending angle of the beams is α=28…30°. The beams have knives with carbon cuts in the end part with an opening angle of β=35…40°, a sharpening angle of j=45…60°, and a sharpening angle of the end part of δ=20…30°. The gear ratio is changed by means of a chain gear mounted between the front and rear batteries of the tool. The beams of the front rotor discs are bent of the opposite direction relative to the beams of the rear rotor discs.

EFFECT: complete combing weeds, maintaining soil moisture, improvement of quality of the surface treatment of the soil, reduction of the number of passes over the field.

7 dwg