METHOD FOR PNEUMATIC THRESHING OF HEADS AND THRESHING DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2023 - IPC A01F7/00 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to agricultural machinery. A threshing device is proposed, which includes a cylindrical body, on the inner side surface of which there is a deck, the surface of which has an undulating profile, a rotor with blades, a loading hopper and a sieve located in the lower part of the cylindrical body, under which there is an unloading chamber with an unloading hole for grain. The rotor with blades is placed outside the cylindrical body, to which it is connected by means of an air duct combined with a loading hopper. A block of dampers is located on the section of the duct between the cylindrical body and the loading hopper. The duct in the section from the damper block to the cylindrical body is divided by vertical walls located at an equal distance from each other into channels, and the damper block consists of a vertical wall located at an equal distance from its side walls and two rotating dampers, each of which consists of a vertical axis and three dampers rigidly fixed to it, which have the shape, coinciding with the shape of the cross-section of the channels.

EFFECT: invention reduces the injury of grains and prevents their crushing when threshing heads.

2 cl, 7 dwg