COMBINED TILLAGE TOOL Russian patent published in 1998 - IPC

FIELD: agriculture, in particular, preparing of soil for sowing of different crops. SUBSTANCE: combined tillage tool has frame, disk batteries and hoes secured on frame. Front and rear rollers with working members are mounted behind hoes on frame and kinematically connected one with another. Working members are arranged in helical lines. Working members on front and rear rollers have opposite direction of coils. Leading front roller or its section disposed behind battery with left front end has left-hand direction of coiling. Leading front roller or its section arranged behind battery with right front end has right-hand direction of coiling for providing soil compaction and leveling. Roller shafts are fastened on rockers pivotally connected with roller frame for providing good adaptivity of rollers to soil relief and tillage depth. Transmission ratio of chain transmission between roller shafts is i=2 - 3.5, allowing soil to be tilled without piling up. Combined tillage tool crumbs, levels and compacts tilled soil layer and simultaneously prepares unripped soil for one pass for sowing of different crops. EFFECT: increased efficiency and wider operational capabilities. 4 cl, 2 dwg