| 摘要 |
FIELD: agriculture.SUBSTANCE: invention relates to agricultural machine building. Sieve for the combined harvester cleaning device comprises a frame, several identical in-series located plates and commutative thrust. Plates pass across the longitudinal direction of the frame and direction of the sieve vibrations. Plates are supported in the frame with possibility to rotate around the pivot axes. Rotation axes pass at regular intervals across the longitudinal direction of the sieve. Commutation elements of the plates interact with the relevant thrust components. Thrust is made with possibility of shifting relative to the frame in longitudinal direction for rearrangement of angles of the plates about their axes of rotation. Trust components are arranged so that at least one plate angle differs from the other plate angle.EFFECT: possibility to adjust sieve holes along its length.10 cl, 10 dwg |
