FIELD: agriculture.
SUBSTANCE: invention relates to agricultural engineering and is to be utilised for creation of new cleaning devices noted for a higher standard of quality. The device includes cleaning elements represented by balls, ellipsoids, ovaloids and plates with a concavo-concave surface fabricated of an elastic material. The cleaning elements are rigidly attached to the ends of spring leads that are attached in the middle to the crosspieces between the holes every second row. The leads are designed to be spring elements consisting of straight or spiral-shaped steel strings. The length of a lead with a cleaning element is at least twice as little as a distance to the next grading screen if the screens are installed in a quantity exceeding one and parallel to each other.
EFFECT: proposed grading screen cleaning device enables reduction of inertial load on the machine and improved quality of grains/seeds purification.
4 dwg
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