RESEARCH OF THE BURROWING SHARE OF A MACHINE FOR HARVESTING VEGETABLES AND ONIONS UNDER LABORATORY CONDITIONS
ИССЛЕДОВАНИЯ ПОДКАПЫВАЮЩЕГО ЛЕМЕХА МАШИНЫ ДЛЯ УБОРКИ ОВОЩНЫХ КУЛЬТУР И ЛУКА В ЛАБОРАТОРНЫХ УСЛОВИЯХ
DOI : https://doi.org/10.35633/inmateh-64-23
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Abstract
It was found that the extraction of a tuberous heap, namely potatoes, with a digging working body with a movable frame, has the most significant drawback, which is that when the depth of the burrowing share tip is changed, the angle of its inclination changes, which negatively affects the chipping of the soil layer and leads to the deterioration of the transportation of the excavated soil layer to the separating working bodies, for which it is necessary to determine and clarify the main technological and design parameters of the developed intake plough share for digging / picking up root crops and bulbs due to the fact that potato tubers and onion bulbs have different size and mass and physical and mechanical properties. A method has been developed for determining the amount of supply of a heap of onion sets from the surface of the digging share to the separating working bodies, the required soil moisture necessary for research. The methodology and results of experimental studies to determine the decrease in the content of soil impurities in the gathering heap of onions are presented, the main statistical characteristics of the experiment are reflected. Based on the results of the screening experiment, significant factors have been established that have a decisive effect on the selected optimization criterion: spring preload, determined by the spring length and the forward speed of the digging share. It was found that the minimum possible amount of soil impurities when extracting onions from the soil is 24.8%. It depends on the values of the investigated factors, values that should be set in the interval: the length of the spring 0.02-0.04 m and the speed of the moving share 1.2-1.4 m/s.
Abstract in Russian