FIELD: agriculture.;SUBSTANCE: machine consists of an air channel for grain separation by an ascending airflow and windows for receiving the initial grain material and removing that to be processed. The air channel is formed by a front wall, a rear wall and side walls and comprises a supporting mesh installed with a slope from the front wall to the rear one. At least two V-shaped plates are installed across the side walls above the supporting mesh with a clearance at a distance from each other. An angle ϕ between the plates is associated with the critical rate of seed destruction onset.;EFFECT: improved grain cleaning.;3 cl, 14 dwg
展开▼
