NEEDLE ROTARY TILLAGE TOOL Russian patent published in 2019 - IPC A01B21/04 A01B29/04 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, in particular, to tillage tools intended for surface and small treatment in regions damaged by wind erosion. Needle rotary tillage tool, including hub with needles fixed on it, at that, the tool is made in the form of a front-mounted drum, the needles are fixed on the hub on the multiturn screw scans at points of intersection of the helix lines with the cylinder generatrixes located at the same distance "b" from each other for the purpose of loosening and cutting of weeds of the separate furrow between the grooves, located at equal distance from it, needles are made with ellipsoidal cross section with decreasing cross-section from hub to end of needle, inner cavity of needle end has sharpening, and outer cavity is hard facing by hard wear-resistant alloy, needles are made in form of hyperbolic sine of equation y=Shx, where y – vertical axis, and x – horizontal.

EFFECT: needle rotary tillage tool is proposed.

1 cl, 2 dwg