HEADER APPARATUS FOR LIFTING AND FEEDING BEATEN-DOWN STALKS TO CUTTER Russian patent published in 1998 - IPC

FIELD: agricultural engineering. SUBSTANCE: apparatus has active lifters 1 pivotally mounted on sleeves above cutter 4 and attached to header casing. Lifter side has hermetically closed reducer 6 with upper part extending in arced path. Driving gear 7, two intermediate gears 8 and driven gear are mounted within reducer casing for providing rotation of lifter disks with working fingers made in the form of tooth 12 shaped as equilateral triangle. Working side of tooth 12 defines with tangent to reducer arced surface an angle of α, which normally exceeds double angle of friction of 2ϕ.. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 4 dwg