WINNOWING MACHINE Russian patent published in 2016 - IPC A01F12/44 B07B1/30 

FIELD: agriculture; machine building.

SUBSTANCE: invention can be used in devices for cleaning and sorting of grain. Winnowing machine comprises frame, receiving-distributing device, two sieve boots opposed on suspensions or stands, eccentric shaft with connecting rods to make sieve boots antiphased oscillations and electric drive. Sieve boots are made from rigidly connected front and rear parts located at different levels. Front part of first sieve boot is placed over front part of second sieve boot. Rear part of first sieve boot is arranged at rear part of second sieve boot. Centres of gravity of sieve boots are located in one or slightly spaced apart by height points. Geometrical axis of hinges connecting rods on each sieve boot mill passes approximately through centre of gravity of sieve boot.

EFFECT: winnowing machine provides considerable reduction of dynamic unbalance of sieve boots.

1 cl, 1 dwg