FARM GRAIN CLEANING DEVICE: RESULTS OF RESEARCH AND PRODUCTION INSPECTION

The objective of the work is to determine the performance of the developed farm grain cleaning device in laboratory and production conditions. The device consists of a frame, a drive, a grain heap dosing hopper, a fan for blowing sieves across the direction of their oscillations, four vertical spring steel posts on which a sieve frame with three sieves with trays for collecting and removing impurities is fixed. The relevance of developing a farm grain cleaning device is outlined, two examples of devices (with cylindrical and flat sieves) are given, a description of the proposed option, the results of its research and field tests are given, which showed a 5-6-fold decrease in grain heap contamination. In the heap of grain subject to cleaning, there were 94.8% whole wheat grain, 3.23% broken grain and grain impurities, 1.12% chaff and earth, 0.94% wild oats and oats, 0.61% weed seeds, and 0.02% ears. After cleaning the heap with a farmer's grain cleaning device, the amount of whole wheat grain after removing impurities became 99.19%, 0.24% broken grain and grain impurities, 0% chaff and earth, 0.08% wild oats and oats, 0.49% weed seeds, and 0% ears