PLANTING UNIT WITH OF GRAIN DRILL WITH CENTRALISED DOSING OF SEEDS Russian patent published in 2012 - IPC A01C7/16 

FIELD: agriculture.

SUBSTANCE: seeding unit comprises receiving chambers, a metering device on the drive shaft, loading and unloading windows. The metering device is made in the form of two pairs of cylinders attached to the drive shaft with an ability to rotate at different rates. On the inner surfaces of the cylinders multithread flat wraps are placed on the helical lines. In one pair of cylinders the wraps are made with the left-hand spiraling and in the other - with the right hand. The bases of the outer cylinders are put on the end parts of the receiving chambers. Between pairs of the cylinders a U-shaped shield with an unloading window is mounted. The agitators are mounted on the end parts of the drive shaft.

EFFECT: invention enables to prevent damage of seeds and increase the uniformity of seeding in slopes.

4 cl, 4 dwg