FIELD: agriculture; machine building.
SUBSTANCE: grain harvester comprises a harvester, a threshing device body and an air-screen cleaning system with a drive. Rear part of the threshing device body is equipped for collection of straw, chaff and seeds of weeds by a collecting chamber with a hinged cover. Collecting chamber has rotating sidewalls with combs. One of the combs is installed on the shaft with a drive and a flywheel. Other comb is installed on the axis with a clamping device in the form of a spring and has kinematic connection with the flap cover for its control. Drive with flywheel is interconnected with drive of air-screen system of cleaning through belt transmission.
EFFECT: grain harvester ensures efficient operation at reduction of power consumption.
1 cl, 3 dwg
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