Experimental research of quality indicators of operation of new potato harvester
2022
Bulgakov, Volodymyr | Ivanovs, Semjons | Pascuzzi, Simone | Adamchuk, Valerii | Ruzhylo, Zinoviy | Ihnatiev, Yevhen | Kaminska, Valentyna
Potato harvesting is a labour-intensive and energy-intensive operation in the production of this crop. Therefore, the development of new and improvement of the existing potato harvesters, which will have higher quality harvesting indicators, is an important task for agricultural production. We have developed a new 2-row potato harvester with an improved cleaning system from soil and vegetable admixtures. The purpose of this research was to determine a rational design and technological parameters of the potato harvester that ensure high quality indicators of potato harvesting. To determine rational parameters of the distributor, the influence of the parameters of the distributor upon the content of impurities in the potato heap with soil impurities was studied. The criterion for evaluating the impact of these parameters upon the quality of the machine was taken as the indicator of contamination of tubers with the soil and plant impurities, which is defined as the ratio of the mass of soil elements in the heap to the total mass of the heap at the outlet of the potato harvester. The established graphic dependencies also made it possible to choose rational design parameters of the V-shaped potato heap distributor. On the basis of experimental investigations a mathematical model of the influence of the design parameters of the distributor upon contamination of the tubers with the soil admixtures was obtained, and the area of rational values of the parameters of the distributor, which were determined theoretically, was confirmed. These parameters of the distributor reduce contamination of the heap on the sorting table of the potato harvester to 11.41%.
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