ALL-PURPOSE SOIL TILLAGE MACHINE OF THE COMBINED UNIT Russian patent published in 2023 - IPC A01B35/20 

FIELD: agriculture.

SUBSTANCE: tillage machines. The device consists of a holder (1), two wings (2) and a replaceable nozzle (3) in the form of a pair of steel strips (4) rigidly fixed to each other at the angle of attack of the cultivator blade. On the frontal part of the wings of the blades, grooves are made with bridges with a diameter of 5 mm placed in the front and at the edges of the wings of the blades for a replaceable nozzle. The thickness of the groove is at least not less than the thickness of the protrusion located in the center of the back side of the nozzle and made with recesses for the bridges of the blade wings. The depth of the groove and the height of the protrusion are 10 mm. The nozzle strips are made 20 mm wide with plasma alloying of the cutting edge (10) 4 mm thick, hardness 70÷75 HRC and cutting edge sharpening angle 2…4°.

EFFECT: reduced traction resistance.

1 cl, 5 dwg