FIELD: agriculture; machine building.
SUBSTANCE: invention relates to agricultural machine building. Device for adjusting the clearance between harvester-thresher cleaning fins 8 includes mechanically coupled cleaning sieve 8, torsion bar 7, actuator and sieve shoe 1 and its elements. Actuator includes drive 2 and system of linkages 4, 6, 11 and levers 3, 5, 9, 10. Mechanically coupled second drive 2, second system of linkages 4, 6, 11 and levers 3, 5, 9, 10, adjusting bar with inclined grooves, connecting rod with hinged head and adjustment lever are introduced into the actuator. Adjustment bar is hingedly connected to the linkage adjustment lever and by means of the first linkage and level system – to the first drive, and via the second linkage and level system – to the second drive.
EFFECT: device for adjusting the clearance between the sieve fins provides an increase in the capacity of the harvester-thresher cleaning system.
4 cl, 3 dwg
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