PNEUMATIC PLANT FOR GRAIN COMBINE HARVESTER Russian patent published in 2014 - IPC A01D41/12 

FIELD: agriculture.

SUBSTANCE: pneumatic plant for grain combine harvester comprises a fan, a receiving chamber with cutting mechanism, a flexible insert, a pneumatic conveying device, a nozzle, a diffuser, and an aspirating chamber. The cross section of the receiving chamber varies smoothly from rectangular to cylindrical. The cutting mechanism is made with the ability to adjust in height. In the aspirating chamber a deck, a reflector, shelves, an air filter, pockets for grain and light impurities, augers and unloading pipes are located. The shelves have an ability to adjust the angle of slope. The augers have the cylindrical shape in the end part and with decreasing pitch windings. The unloading pipes are equipped with spring-loaded valves. The fan is connected to the aspirating chamber through the funnel.

EFFECT: simplicity of the construction is provided Reduced metal consumption and energy consumption, reduced grain damage and its loss during harvesting.

4 dwg