SOIL AND GROUND DEEP CULTIVATOR Russian patent published in 2006 - IPC A01B13/02 A01B13/14 

FIELD: agricultural engineering, in particular, deep mellowing equipment.

SUBSTANCE: deep cultivator has knife-shaped tine inclined to horizontal plane and to cultivator advancement direction and equipped with front face and chisel fixed in lower part of tine. Chisel has point disposed forward of tine front face. Chisel has wear-resistant coating on its working surface. Chisel is made in the form of hollow cylinder with axis of symmetry arranged at an angle to horizontal plane. Oval-shaped part of cylinder cross-section is positioned in horizontal plane at lower part of tine to define point with sides. Sectional plane of hollow cylinder defines elliptical cutting edge. Longitudinal slot in upper part of hollow cylinder defines chisel made by bending a part of cylinder in direction of advancement of cultivator. Bent part of cylinder forms protective shield for protecting lower part of tine from hanging plant remains. Mounting openings in body of truncated part of hollow cylinder in parallel plane of oval-shaped part are adapted for joining to members disposed in lower part of tine. Chisel is joined to lower part of tine through pairs of cylindrical pins, which are detachably arranged in mounting openings and tine members having mated cylindrical surface.

EFFECT: improved quality of mellowing of soil layers and reduced consumption of power.

2 cl, 6 dwg