SEEDING UNIT Russian patent published in 2001 - IPC

FIELD: agricultural engineering. SUBSTANCE: seeding unit has hopper fixed to frame and provided with at least one horizontal shaft equipped with drive. Shaft is arranged for rotation relative to drive and is embraced with tubular housing. Shaft has through channel and openings arranged in single vertical plane and communicated with seed guide extending through lower opening of tubular housing. Tubular housing is rigidly fixed. At least one lower opening of tubular housing is formed as profiled dosing slot. Shaft is mounted for reciprocating-oscillating rotation at predetermined frequency of 1-50 Hz and vibration amplitude of 1-45 deg for forming fluidized seed bed. Adjustable inner coils with partition wall are fixed on shaft so as to define through channel. Partition wall is spring-loaded. Seeding unit may be used in precision seed drills. EFFECT: simplified construction, increased efficiency by improved seeding uniformity and regulated seeding rate. 3 dwg