LOOSE MATERIALS THROWER Russian patent published in 2005 - IPC

FIELD: agriculture; grain cleaning and grading machines.

SUBSTANCE: the invention is dealt with grain-cleaning grading machines used in agriculture. The thrower consists of a bladed barrel, in the central part of which there is a receiving disk-shaped surface forming by means of cone-shaped surface a continuous stepped surface with the lower bearing disc. The barrel blades are composed of two blades joint among themselves by a hinge - a main fixed blade and an additional movable blade. The main blade is located in a radial direction and in longitudinal direction it consists from a triangular and a rectangular parts. The basic lobe is mounted on the circumference of the receiving disk-shaped surface with its apex of the triangular form facing the center and along the whole length of its lower side is fixed perpendicularly to the conical part of the stepped surface of the lower main disc. Rectangular parts of the blade are located on the periphery of the barrel and fixed between the ring-shaped disk surface of the lower stepped main disk and the surface of the upper ring-shaped disc. A tail butt of each main blade does not reach a directing cylindrical surface of the barrel and forms a clearance with it equal in height value = N. An additional mobile blade in a longitudinal section has a rectangular form. On the area of the outlet connection pipe location on the external circumference of the receiving disk surface there is a reflecting baffle. The additional movable blade may be made out of two fixed among themselves at an angle of flat rectangular parts. The effective surface of the peripheral part forms an angle with a guiding surface of the body, and another part with its butt is hinged to the rear side of the main blade a d forms with it the same angle . In front of a butt of a part at a distance of 20-40 mm there is a flexible valve. The technical result is an increased efficiency of the grain thrower operation, decreased traumatizing of grain, improved quality of grain cleaning and separation at its throwing into an air stream.

EFFECT: the invention ensures increased efficiency of the grain thrower operation, decreased traumatizing of grain, improved quality of grain cleaning and separation.

4 cl, 4 dwg