COMBINE HARVESTER Russian patent published in 2020 - IPC A01F12/28 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, namely, to mechanisms of adjustment of gaps in concave parts of threshing device of combine harvesters. Combine harvesting machine comprises a harvester with an inclined chamber, a threshing separating device with two or more threshing drums and decks connected hingedly by means of suspensions. Decks interact with the mechanism for adjusting the gaps in the concavities. Axes of hinge joints 11 of suspension of adjacent decks are made in the form of cylinders with eccentrics fixed on them, which are installed in side frames of adjacent decks frames on axis of their suspensions with the possibility of their fixation against free rotation by turning levers 14. Rotary levers 14 are connected with rods 15 of mechanism for adjustment of gaps in concaves. One of the suspensions is installed in slots 16 of sidewalls of threshing-separating device with possibility of limited movement in transverse direction of combine plane motion. Other deck suspensions are installed in slots 17 and 18 of sidewalls of threshing-separating device with possibility of free movement in transverse direction of combine harvester movement plane.

EFFECT: invention provides for increased safety of harvested grain.

1 cl, 5 dwg