IN-LINE COMBINE HARVESTER Russian patent published in 2010 - IPC A01D41/00 A01F7/06 A01F12/18 

FIELD: agriculture.

SUBSTANCE: invention refers to the sphere of agricultural engineering industry. In-line combine harvester comprises cutter, inclined chamber, threshing-separation apparatus and blower. Threshing-separation apparatus is arranged in the form of external, middle and internal helical drums coaxially arranged with gap. External drum is manufactured along perimetre from three or more perforated strips of alternating width, which are coiled in vertical plane and are serially connected to each other. Middle drum is mounted from sections made of even number of equilateral triangles connected to each other by lateral sides. Sections are connected to each other by free third sides of triangles to form a helical drum. Along perimetre of helical drum, there are broken right and left helical lines arranged opposite to each other with internal helical grooves. Internal drum is arranged of at least three perforated strips of rectangular shape having identical width along their whole length. Strips are coiled in vertical plane in longitudinal direction and are bent along helical lines in transverse direction.

EFFECT: due to usage of three coaxially arranged drums, area of grain sifting is increased with preservation of overall combine dimensions.

3 cl, 25 dwg