SYSTEM OF ADJUSTABLE BLADES FOR HOUSING OF AXIAL ROTOR OF AGRICULTURAL COMBINE Russian patent published in 2013 - IPC A01F12/28 

FIELD: agriculture.

SUBSTANCE: system comprises a housing and a rotor mounted with the ability to rotate in the housing. The housing bears on its surface a plurality of elements processing grain material and adjusting his movement. The housing has a substantially cylindrical shape and a substantially cylindrical wall with an inlet end and an outlet end. In rotating the rotor interacts with the housing to process grain material flowing into the housing through the inlet end and transmit it to the outlet end. The housing comprises: a substantially cylindrical wall having a curved section and a continuous first planar wall section. On the cylindrical wall there are a lot of fixed curved spirally arranged blades. In addition, the system has a plurality of adjustable blades located at a predetermined distance from each other. Each adjustable blade has a flat base corresponding to the first flat wall section, protrudes substantially radially inwards from the first flat wall section and is located substantially in a spiral to come in contact with the grain material, which is moved on the circumference by the rotor. The spiral arrangement of the adjustable blades is made so that the relative movement between the grain material and the adjustable blade rejects the material axially to the outlet end of the housing. Each adjustable blade is pivotally fixed to the turning point to the first flat wall section, and is connected at the pivot point to the drive mechanism. The pivot point of the adjustable blade is located at distance from the turning point. The drive mechanism provides controlled turn of the adjustable blade in swinging mode in relation to the turning points for placing the adjustable blades at desired angles, and change in the efficiency of the axial deviation of the grain material by the adjustable blades.

EFFECT: constructive implementation enables to ensure the efficiency of movement of the grain material without performance degradation of the combine.

7 cl, 9 dwg