SEEDING UNIT Russian patent published in 1999 - IPC

FIELD: agricultural engineering, in particular, equipment for dosed application of pelletized fertilizers, which may be also used in drills for soil application of mineral fertilizers. SUBSTANCE: seeding unit has sectioned seed roller. Outer ring 2 has charging cavities 6 and leaf springs 7 adapted for braking outer ring 2 relative to inner ring 3 fixed on drive shaft 5. Rings 2 and 3 are interconnected by spring. Outer ring 2 may be rotated relative to inner ring 3. As seed roller rotates, a portion of fertilizer is ejected into fertilizer guide while it is imparted acceleration for more quick getting into soil. Such construction provides reduced transverse size of portion of fertilizer ejected into soil. Torsional vibrations of outer ring 2 of seed roller facilitate efficient cleaning and filling of charging cavities. EFFECT: increased efficiency by improved dosage of pelletized fertilizer and improved localization of portions during fertilizer application. 2 cl, 2 dwg