ENSURE THE UNIFORMITY OF FEEDING OF THE GRAIN MASS TO THE THRESHING

Abstract

This article is devoted to the problem of uneven supply of grain mass to the threshing, which leads to an increase in grain losses during harvesting. The aim of this study is mathematical analysis of the optimal cut profile when changing the value of the second feed of the bread mass in the range from 4 to 12 kg/s, the detection of their laws as the length of the drum and the width of the threshing-separating device. As a result of processing of experimental data, a graph of the optimal profile of the cut-off of the conveying device is obtained, which will ensure the uniformity of the grain mass flow in the initial States of the threshing. The equations of these lines are obtained, the averaged profile of the slice for the whole group of curves from the value of the feed grain mass is constructed. The coefficient of reliability of approximation showed high rates of accuracy of approximation.