THRESHING DEVICE Russian patent published in 2014 - IPC A01F7/06 A01F12/18 

FIELD: agriculture.

SUBSTANCE: device comprises a loading and an unloading device and a threshing chamber. The threshing chamber is formed by funnel shaped surfaces of two coaxial bodies of revolution which are directed with their large diameters downwards. The inner body of revolution is made perforated and has an ability to make angular oscillations around a common axis of bodies. Each of the bodies of revolution consists of several truncated cones with increasing diameters of the bases from the top downward and the successive alternation of the angle of inclination of their generators. The surfaces of the shallow cones of the inner body of revolution have openings of larger flow section. The surfaces of alternating cones have a larger angle of inclination and are additionally provided with wiping elements.

EFFECT: improvement of threshing ability of the device.

2 cl, 1 dwg