COMBINED TILLAGE TOOL Russian patent published in 2015 - IPC A01B17/00 A01B49/04 

FIELD: agriculture.

SUBSTANCE: tool comprises mouldboard bodies mounted on the frame, fertiliser distributing units with fertiliser hoses, high-pressure fan with an air-duct. The air-duct is tightly connected to the fertiliser hoses. The fertiliser hoses are attached at the rear side of the mouldboards and radially connected to the windows, made between the ploughshare and the mouldboard tangentially to the surface of the mouldboards. On the outer surface of the ploughshare in front of the windows the ripper projections are provided, which continue over the windows in the form of teeth. The ripper projections have a cutting edge, which is directed along a path of movement of the soil layer, undercut by the ploughshare, and has a welding with solid wear-resistant alloy. The cutting edge of the projections is connected with ripping guides made on the outer surface of the mouldboards along the guide parabolic curves. The ripper guides have on the outer surface the welding with solid wear-resistant alloy. In the side wall of the fertiliser dispenser a fertiliser meter-mixer is made, representing a screw auger of left-hand orientation. The side wall of the auger housing at the side of the sowing unit is absent, and the lower part of the auger housing is sealingly connected with a mixer-guide. The mixer-guide has a metering valve and is sealingly connected to the fertiliser hoses.

EFFECT: this constructive implementation enables to provide the uniformity of distribution of mineral fertilisers throughout the sternum of the arable horizon and increase in crop yields.

5 dwg