CLEANER FOR GRAIN COMBINE Russian patent published in 2006 - IPC A01F12/44 A01D41/12 

FIELD: agricultural engineering, in particular, equipment used in grain combines.

SUBSTANCE: cleaner has tossing board, fan, upper and lower sieve shoes arranged rearward of fan and equipped with lipped sieves. Upper lipped sieve has extension and non-adjustable guiding boards arranged at an angle to sieve. Tilt board, grain and ear screws are positioned under lower sieve shoe. Guiding shield with adjustable inclination angle is disposed under upper sieve extension. Pivotal shutter is pivotally attached to front end of tilt board so that gap between front end of shutter and bottom of lower sieve shoe may be regulated. Guiding shield and rotary shutter allow value and direction of air flow under upper sieve extension to be adjusted.

EFFECT: increased efficiency and reduced grain losses.

1 dwg