WINNOWING MACHINE Russian patent published in 2010 - IPC A01F12/44 

FIELD: agriculture.

SUBSTANCE: invention relates to the agricultural machinery and can be used in devices for after-harvesting treatment of grains. Winnowing machine comprises frame and sieve boots of inner and outer cassettes joined pairwise by links. Sieve boots of inner and outer cassettes are installed on vertical suspensions and stands, and their centres of mass are located in the same point. Sieve boots are put into antiphased oscillations by eccentric shaft with connecting rods. Eccentric shaft is located in the area of sieve boots centres of mass. Connecting rods are fixed to links of sieve cassettes arranged near grain feeding device. Angle between suspensions or stands and line passing via centre of eccentric shaft and point of connection rods fixation equals 90°±10°.

EFFECT: winnowing machine has high dynamic balance with minimum energy inputs for drive of sieve boots.

2 cl, 1 dwg