EXPERIMENTAL HISTOGRAMS OF SPRINGBACK RANGE FROM THE REFLECTION SURFACE OF RAPESEED AND WEED
The use of outdated equipment and technologies, a worn-out fleet of grain cleaning machines, as well as the inability to replace equipment quickly with new one due to the high cost, is the main reason for the untimely and poor-quality postarvest treatment of grain heap, which leads to a loss of the grown crop from 15 to 30%. To reduce losses it is necessary to look for the new technologies that will reduce the number of operations and repeated grain passes through the machines. This work is aimed at developing technologies and creating technical means that will ensure high quality of preliminary and primary cleaning of the grain heap of oilseed rape seeds at minimal cost. After analyzing the trend in the development of grain cleaning equipment we can draw the following conclusion that its qualitatively new and inexpensive level is possible by the method of separation of grain graff by the elastic properties. Separators by the elastic properties are the most promising, not expensive, require minimal energy consumption, they are simple and reliable in design. They are able to work efficiently and meet the requirements of post-harvest grain processing. The purpose of the study is to study the separation process by the elastic properties, establish the regularity of the interaction of rapeseed and weeds with the reflective surface. The technique is the study of the interaction pattern of various seeds with the reflective surface during oblique impact. To study the springback range of rebound and the spot of dispersion of oilseeds and main cloggers, a laboratory installation was made. Results. Experimental studies have made it possible to construct variational series of the seed rebound range and histograms of the distribution of seeds of rapeseed, flax, common blackberry, field bindweed, common pigweed, neslia paniculata. Their arithmetic mean value of the rebound and the coefficient of speed recovery are determined. Scientific novelty. The proposed approach and methodology allow us to study the elastic properties of oilseeds and their main weeds. The parameters confirming the possibility of isolating most of the hard-to-separate weed seeds from rapeseed have been established.