PLOW-TYPE CAVITY FORMER Russian patent published in 2006 - IPC A01B13/02 

FIELD: agricultural engineering, in particular, equipment for constructing of slope-free cavities in wide strip irrigation of farm crops.

SUBSTANCE: apparatus has frame equipped with upright column. Shoe is arranged in lower part of tine at an angle of 15-25 deg in relation to horizontal plane. Flat hoe with clearance angle of 125-135 deg is attached to shoe. Flat hoe is furnished with left-hand and right-hand shares and mellowing device formed as tooth. Left-handed and right-handed moldboards attached to tine and to flat hoe surface are provided with cylindrical surfaces equipped with skis. Semi-helical wings are provided on ends of moldboards. Tine may be equipped with adjusting screw for rotation thereof in vertical plane around axis. Frame is equipped with automatic hitch for combining with tractor. After adjustment of apparatus, cavity cutting is performed in "floating" position of tractor hydraulic system. Cut off soil layer is moved by shares upward along internal surfaces of left-handed and right-handed moldboards and finally form cavity profile for one passage of swing chutes and semi-helical wings.

EFFECT: increased efficiency and improved quality of slope-free cavities for surface irrigation of farm crops in wide and elongated strips.

6 dwg