THRESHING DEVICE Russian patent published in 2012 - IPC A01F12/28 A01F12/20 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machinery. Threshing device comprises a drum and a grid deck. The drum is equipped with operating elements with teeth. The teeth of part of the operating elements are made shorter than the teeth of the other operating elements and are located parallel to the generator. Longer teeth are arranged at an angle to the generator. All the teeth are located in helical lines so that the adjacent tracks of the teeth partly overlap each other. The peaks of all teeth lie on the same cylindrical surface. Half of the teeth are located on the left helical line, and the other half of them - on the right helical line.

EFFECT: threshing device enables to reduce power consumption of grain threshing and grain damage.

3 dwg