The claimed utility model relates to agricultural engineering and can be used in the design of threshing devices of combine harvesters for harvesting various crops. The objective of the claimed utility model is to increase the productivity of the combine harvester, increase the reliability of the design, as well as increase the main working time by eliminating the straightening of the receiving blades beater. To achieve the specified technical result in the claimed utility model containing h four blades, trunnions with which the beater rests on ball bearings installed in flange housings, and discs protecting the trunnions from winding the process material, the blades on the outer surface are reefed and tilted back relative to the direction of rotation of the receiving beater, a shaft and trims are introduced, while the blades are made of sheet metal in a flat form and are rigidly fixed on the shaft, to the ends of which the pins are welded, the shaft being made of rolled pipe to facilitate construction. Planks made of sheet metal of a flat shape are mounted on the non-working surface of the blades at an angle different from the angle of 90 degrees and less than or equal to the angle of inclination of the blades, and are inclined forward relative to the direction of rotation of the receiving beater. The planks are made in the form of a profile of the blades and are located along their entire length, the upper part of the plank being located below the corrugated surface, thereby not overlapping it, and the lower part of the plank is located tangent to the outer surface of the shaft. The slats along the contour are welded to the blades, discs and shaft. In the process of operation, the strips do not interact with the technological mass, therefore they do not undergo premature wear, which increases the service life of the receiving beater.
展开▼
