FIELD: agriculture； machine building.SUBSTANCE: invention relates to agricultural machine building and may be used for thrashing of crops. Threshing device comprises threshing drum 1 with pincers 2 and concave 3. Threshing drum 1 is combined with diametrical fan and is made with inner curvilinear blades 4 over the entire width of drum 1 in form of blades 4 of diametrical fan arranged along inner circumference of threshing drum 1.EFFECT: threshing device allows to increase speed of air flow and threshing capacity ensuring increased efficiency of combine harvester.1 cl, 1 dwg
