SOIL TILLAGE UNIT WITH FERTILIZATION Russian patent published in 2017 - IPC A01B49/06 

FIELD: agriculture.

SUBSTANCE: in the soil tillage unit, a rotary harrow (1) is used as the working body for soil tillage, containing a frame (2) with a towing device (3) installed on the top, with possibility of detachable fixing to the vehicle, with supports (4), in which the bearings (5) are installed that fixing the shaft (6), on which the flat discs (7) are fixed. On the discs (7) with even pitch, ripping teeth (8) are fixed. Each tooth (8) has mounting (9), rod (10) and working (11) parts. Mounting (9) and rod (10) parts in cross-section have the shape of an ellipse. The working part (11) is made in the form of an elliptical cone, the conical surface of which forms its lateral surface. The rod (10) and working (11) parts of the tooth have two parallel cutting edges (12) with a thickness of not more than 2 mm on the side surface. Each tooth (8) of the harrow (1) with its mounting part (9) is fixed on a flat disc (7) with even pitch so that the curvature direction of the curvature of the working part (11) of the tooth (8) is in the form of a logarithmic spiral. As a fertiliser application, a hopper (13) is used, on the lateral part of which there are mounting units (14) for detachable fixing to the power device, with an adjustable damper (15). An additional drive motor (16) is installed on the lower side of the hopper (13), the shaft of which is connected by kinematic connection to the spreading disc (17). The adjustable damper (15) and the drive motor (16) are electrically and independently connected to the control panel (18), which can be mounted for installation in the cabin of power device.

EFFECT: possibility of application at processing of top soil layer and perfection of crumbling process, and reduction of unit breakages.

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