GRAIN-CLEANING MACHINE Russian patent published in 2009 - IPC A01F12/44 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machine-building and can be used in devices for after-harvesting treatment of grains. Grain-cleaning machine has equal in weight grid mills and supplementary shaft with connecting rods for giving mills antiphased fluctuations. Gris mills are placed one after another at different levels with inclination towards separated material movement. Supplementary shaft axis and places of connecting rods fastening are on the same line passing through weight centres of grid mills. For dynamic balancing of machine each grid mill is installed on pair of poles of equal length. Suspension brackets and poles on mills which are in the same direction as separated material moves are located in the following succession - suspension brackets, poles, poles, suspension brackets or in other succession - poles, suspension brackets, suspension brackets, poles. All poles and suspension brackets are at equal distance from weight centre of their mill.

EFFECT: dynamic balancing of grid mills is ensured and vibrations are not passed to flyovers and building ceilings.

2 cl, 1 dwg