FIELD: agriculture; machine building.
SUBSTANCE: invention relates to the agricultural machine building. Hopper of the combine harvester includes the main tank A, sediment chamber B connected by common side walls and a closed air channel. Near the intermediate walls 15 there are two reflective visor 16 and 17, bordering the drum, installed between two curvilinear shields. Both guards are made of two moving sections and form the input window and the output channel. Drum is a rotating grating using curved blades and includes a drive for the main shaft with discs.
EFFECT: invention provides a combination of the process of pneumatic sorting of grain and high quality of cleaning thereof.
5 cl, 7 dwg
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