COMBINE HARVESTER Russian patent published in 2011 - IPC A01D41/00 A01D41/12 A01F12/18 A01F12/60 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machine building. Combine harvester includes reaping machine with cutting tool, reel, narrowing auger and pin mechanism. There is an inclined chamber with device of preliminary threshing of grain in the form of upper and lower rolls arranged in two tiers with auger arranged underneath for grain discharge. Combine comprises centrifugal fan equipped with rotation drive, corrugate product line, hose for air supply and discharge pipeline. Auger jacket is coupled with window in lower part of centrifugal fan body. Discharge pipeline is mounted at an angle to front wall of seed grain hopper. Upper cut of specified pipeline is arranged as bevelled. Lower end of pipeline is joined to upper end of corrugated pipeline. Pipeline wall comprises nozzle for air supply. Nozzle is pneumatically joined by hose to discharge nozzle, which is installed at the angle to upper wall of outlet nozzle of centrifugal fan. Each roll of device for preliminary threshing of grain is arranged in the form of hollow cylinder. Axis of symmetry of hollow cylinder is displaced from axis of driving shaft rotation. In each pair rolls are installed opposite to each other.

EFFECT: combine provides for threshing and collection of biologically valuable grain at early stage of processing with high biological parametres.

7 dwg