TOOL FOR DEEP CULTIVATION OF SOIL Russian patent published in 2009 - IPC A01B13/14 

FIELD: agriculture.

SUBSTANCE: tool comprises double-stand frame, inclined curvilinear cutting stands of which in lower part are connected to each other by ploughshare. Ploughshare is arranged with composite structure, made of knife inclined along with motion and semi-oval conical wedge. Wedge is oriented by convex part into internal space of tool and is inclined in longitudinal plane along motion travel so that its top lies on knife axis and is shifted back along motion travel relative to its cutting edge. Side surfaces of wedge that contact bases of inclined curvilinear stands have common lines of contact along the full width of these stands, lie on cutting surface of knife and meet at wedge top. Convex-shaped part of semi-oval conical wedge is inclined at the angle of 10-12° relative to cutting surface of knife. Semi-oval conical wedge and knife, on which this wedge is installed, create ploughshare structure. Inclined stands along its surface have convex cross section. Radiuses of curvature of convex working surfaces of stands vary depending on depth of considered sections location.

EFFECT: such structural arrangement makes it possible to provide for evenness of decompaction and to increase quality of soil treatment along the whole profile of layer, and also to reduce energy intensity of soil ripping process.

2 cl, 5 dwg