RIDGE DRILL Russian patent published in 2017 - IPC A01C7/00 

FIELD: agriculture.

SUBSTANCE: ridge drill comprises ridge formers 4, sowing units 2, packer wheels 3, fixed on the frame. Shovels-openers 43 are installed in front of the ridge formers 4. The packer wheels 3 comprise a composite frame, spherical discs, bars with springs. The spherical discs are mounted with their convex side to the longitudinal symmetry axis of the wheel with the possibility to change the approach angle of the spherical discs symmetrically relative to the longitudinal symmetry axis of the wheel at the same angle, the opening of which is directed toward the ridge drill movement, and to fix it in a determined position. Between the spherical discs on the axis at regular intervals flat discs are mounted, the outer contour of which is made multifaceted and sharpened bilaterally. Rippers having the circular shape in cross section are rigidly mounted on the convex side of each spherical disc. The rippers are circumferentially mounted on spherical discs and directed with their edge towards the longitudinal symmetry axis of the wheel. Shaped sharpened recesses in the form of a semicircle are made on the periphery of each spherical disc.

EFFECT: invention will allow to improve the quality of planting tilled crops.

7 dwg