GRAIN COMBINE HARVESTER Russian patent published in 2014 - IPC A01D41/00 A01D34/00 

FIELD: agriculture.

SUBSTANCE: grain combine harvester comprises a header for stripping the spike, an inclined conveyor, a shredder of stems, a drum with grooved surface, a concave, a finger grating, a fan, sieves for cleaning grain, the drum with grooved surface is mounted on a frame and is made rubber-coated, and the concave is made solid. One of the sides of the concave is pivotally attached, and the second is free to change position relative to the drum. The finger grating with a convex surface is mounted behind the drum in the direction of rotation at an angle and is connected to the air duct, inside which a conveyor with scrapers is mounted, and the fan is made with the ability to regulate the air flow and is mounted under the grating to direct the air flow on it.

EFFECT: improvement of quality of grain harvesting and reduction of its energy intensity.

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