DOSED SEEDING APPARATUS FOR BULK FERTILIZERS Russian patent published in 2006 - IPC A01C7/16 A01C7/12 

FIELD: agricultural engineering, in particular, dosing equipment for subsurface portioned local application of bulk fertilizers.

SUBSTANCE: apparatus has hopper with bulk fertilizer discharge windows, and caver arranged in lower part of hopper. V-shaped frame adjoining discharge windows carries dosing-transporting unit consisting of two transporters. Each of transporters has triangular chain contour with carrier flexible belts immovably attached to links thereof. Scrapers fixed on belts in equally spaced relation from one another are made in the form of straight prisms with trapezium-shaped bases thereof. Prisms are fixed to belt with their larger face. Fertilizer troughs are defined between scrapers. Chain contours of transporters are mounted on driving and driven sprockets of related shafts of V-shaped frame and when paired conform to shape thereof. All of sprockets are positioned in vertical-longitudinal plane to thereby allow transporter chain contours to move in single plane. Two branches of chain contours are arranged adjacent one another.

EFFECT: increased uniformity in application of fertilizers and provision for localization of fertilizer portions in subsurface application process.

3 dwg