WINNOWING MACHINE Russian patent published in 2018 - IPC B02B1/00 B07B4/00 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building. Winnowing machine comprises frame, (1) on which supply nozzle (2) is mounted. Device for separating large and straw impurities is made in the form of reticulated drum (3) located in sieving chamber (4). In the lower part of the sieving chamber, there is aligning screw (6) with dosing valve (7), which feeds the processed material into aspiration channel (8) through loading window (9). Loading window is made in wall (11) separating aspiration channel (8) from sieving chamber (4). Wall (11) of aspiration channel (8) located opposite loading window (9) is movable and transparent. Aspiration channel (8) is connected to a settling chamber of light impurities. In the upper part of aspiration channel (8) there is centrifugal fan (15) with airflow adjustment damper (16) and outlet nozzle (17). In the lower part, there is screw (18) for discharge of light impurities. In loading window (9) roller with blades (10) is mounted under dosing valve (7). In the lower part of the movable and transparent wall of aspiration channel (8), louvered grating (12) is installed against the loading window.

EFFECT: supply of the processed material to the aspiration channel in loosened, fluffy state is ensured.

1 cl, 1 dwg