HARVESTER FOR LEGUMINOUS CROPS Russian patent published in 2012 - IPC A01D41/00 A01D41/02 A01F12/18 A01F12/30 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machinery. The harvester comprises the reaping part, the feed elevator, the threshing and separating unit and a straw separator. The threshing and separating unit comprises rolls arranged in pairs and placed in layers on the shafts and which are changeable depending on the size of the seeds of threshed culture. For threshing of large-seeded crops, the threshing rolls are made as cylindrical shaft with a pressed-on elastic tube which surface is made as wave-like whips. Directions of the waves in neighboring whips are perpendicular, and wave height corresponds to the size of the threshed seeds. Rolls of each pair rotate towards each other. The upper threshing rolls rotate with a higher peripheral speed than the lower rolls. The lower rolls are installed with the ability to adjust the gap, which at the input has a greater significance than at the output. The straw separator is made as a chain-slatted conveyor with elliptical shakers. Under the straw separator a chute tray is mounted. Under the rolls the transport board is located, coupled with the cleaning sieves. For thrashing of small-seeded crops, other removable rolls are mounted, which are cylindrical shafts on which a flexible tube with helical grooves is pressed-on.

EFFECT: device provides a quality thrashing without damage of the seed material.

5 dwg