THRESHING APPARATUS Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, equipment for threshing of agricultural crops.

SUBSTANCE: threshing apparatus has cylindrical threshing drum and deck arranged under drum. Rows of teeth with single bases in each row are positioned on drum surface. Planks are positioned on at least two diametrically opposite bases. Teeth are arranged along helical lines, with apexes of all teeth being arranged on single cylindrical surface. One half of teeth are arranged along left-hand helical lines while other half of teeth are arranged along right-hand helical line. Versions of arrangement of teeth on cylindrical surface of drum are cited. Threshing apparatus provides for alternate movement of crop under threshing process along drum axis in opposite directions.

EFFECT: increased efficiency and uniform distribution of threshed crop over deck surface and improved threshing and separation of grain.

4 dwg