FIELD: agriculture.
SUBSTANCE: grain combine harvester is designed for harvesting grain crops in a separate method. The harvester works in aggregate with a tractor with use of a wide-cut reaper. The harvester is mounted on the chassis with a lateral drawbar. The harvester is equipped with PTO for rotating working bodies, and a pneumatic unit. The pneumatic unit is mounted opposite the lateral drawbar. The pneumatic unit comprises a fan and two cyclones. The cyclones are connected in series for separation of grain mixture. The pneumatic unit separates straw-grain mixture to coarse and fine fractions on the hovering velocity and delivers the straw-grain mixture into the threshing drum.
EFFECT: harvesting of chaff and weed seeds is provided, increased performance, simplified maintenance of the harvester.
5 cl, 3 dwg
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