BOOM-TYPE VIBRATION FEED OF SEEDING DRILL Russian patent published in 1997 - IPC

FIELD: agricultural engineering. SUBSTANCE: boom-type vibration feed has frame 1. On the frame there are two hoppers 2. Metering devices 3 are attached to each hopper from below, and tubular booms 4 are attached to the metering devices. The booms vibrate in the antiphase, and they have slots for seeds. One end of each boom 4 is attached to the metering device by means of flexible coupling 12, and along the edges they are attached by means brackets 12 adjustable in the vertical direction. Slotted plates 5 are located below along all seeding slots of booms 4. The plates are linked to adjusters 6 and 7. There is a system of dosing gates 21, and compensating devices 10 are mounted on the top of the booms. EFFECT: higher efficiency; higher seeding quality. 8 dwg