THRESHING-CENTRIFUGE APPARATUS OF THE COMBINE HARVESTER Russian patent published in 2008 - IPC A01F12/18 A01F7/04 

FIELD: agriculture.

SUBSTANCE: apparatus consists of a pre-beater, a beater drum with a concave and a beating device. Pre-beater is made in the form of two circulating towards each other rollers. Upper roller is spring-driven, and lower roller is grooved. Concave wrapping angle of the beater-drum at the outlet makes 60...65°. Beating device includes blade-finger rotor with set underneath rod-grill of parabolic shape. On the one end of the grill there is a hinged wing connected through a flexible element and a block with a freely hanging load.

EFFECT: ensures effective threshing of cereals and decreases losses of grains.

1 dwg