JUSTIFICATION OF THE MAIN DESIGN PARAMETERS OF THE ROTARY WORKING BODY OF ROOT HARVEST MACHINES
Sergiy Hrushetskiy – Candidate of Technical Sciences, Associate Professor of the Department of Agroengineering and System Engineering Podolsk State University Higher Education Institution (St. Shevchenko, 13, Kamianets-Podilsky, Khmelnytsky region, 32316, e-mail: email@example.com, https://orcid.org/ 0000-0002-6434-1213).
Oleh Omelyanov – assistant of the department of general technical disciplines and occupational safety, Vinnytsia National Agrarian University (3 Solnechnaya St, Vinnytsia, 21008, Ukraine, e-mail: firstname.lastname@example.org, https://orcid.org/0000-0003-3819-5336).
Potato is one of the most common crops in Ukraine, most domestic farms are engaged in its production - from the population to large agricultural firms. Moreover, about 95% of the potato produced falls on household plots, which are characterized by the widespread use of manual labor in most technological harvesting operations and low mechanization of the harvesting process as a whole.
Harvesting remains the most resource-intensive process in potato production, because today, as you know, the share of energy and labor costs of harvesting processes is 50-60% and 60-70%, respectively.
From a brief analytical review of the works devoted to the study of under-digging-separating working bodies of root-tuber harvesters, it can be seen that by now significant theoretical and experimental material has already been accumulated, revealing the patterns of interaction processes of working bodies of various designs with tuberous mass. However, despite this, to date, it has not been possible to create a sufficiently efficient, reliable, low-energy, which will satisfy all agrotechnical requirements for root and tuber harvesters, and the problem of developing such a device is still relevant.
Accordingly, the purpose of the study was to conduct a comparative analysis to take the minimum amount of soil together with tubers and provide the possibility of better crushing of the reservoir to facilitate separation and basic parameters while increasing operational productivity, technological reliability of the digging working body and reducing its traction resistance.
Based on the results of the research, a new rotary root and tuber harvester has been developed, due to the proposed tooth discs with cutting edges of the lugs and changing the shape of the plowshare of the root and tuber harvester to cylindric, as well as a flat moldboard surface to a rod-separating device, which provides the possibility of better crushing the layer and separating the tubers from the soil rubberized rotor tines for easier separation on the rotary soil separator with rubber tines during harvesting with a rotary root harvester.
The proposed scheme of a rotary root and tuber harvester reduces the supply of soil and the separation of tubers from the soil by rubberized rotor fingers to rotary separating working bodies and improves the separation of tubers, thereby reducing their mechanical damage, providing better storage of potatoes, reducing the number of separating devices, and increasing the productivity of the unit.
The new rotary working body proposed in the work, taking into account agrotechnical recommendations, should have a rounded surface structure made of high-strength rubber, with cone-shaped protrusions placed at an angle to the circle inscribed in the base. For research, as the main parameters of the rotor, we take its outer diameter Dр, the angle of inclination of the protrusions βв, their height Нв, length Lв, the radius of curvature Rв, the height of the vertices bв and the total number of protrusions Nв on the outer diameter Dр, as well as the thickness of the rotor B and the landing parameter. holes.
 Hrushetskiy, S.M., Yaropud, V.M., Duganets, V.I., Duganets, V.I., Pryshliak, V.L. Kurylo, V.M. (2019). Research of constructive and regulatory parameters of the assembly working organs for the potato’s harvesting machines. INMATEH-Agricultural Engineering. Vol. 59, 3, 101-110. [in English].
 Hrushetskyi, S., Yaropud, V., Kupchuk, I., Semenyshena, R. (2021). The heap parts movement on the share-board surface of the potato. Harvesting machine bulletin of theTransilvania university of Braşov series II. Forestry Wood Industry Agricultural Food Engineering Vol. 14(63), 1, 127-140. [in English].
 Hrushetskiy, S.M., Rud, A.V., Semenyshyna, I.V., Medvedyev, YE.P. (2019). The technological process pattern of potato root harvester [The technological process pattern of potato root harvester]. Zhurnal «Podilʹsʹkyy visnyk: silʹsʹke hospodarstvo, tekhnika, ekonomika», 31. Kamʺyanetsʹ-Podilʹsʹkyy, 52-62. [in English].
 Hrushetskiy, S.N. (2019). Modelʹ tekhnolohycheskykh protsessov kartofeleuborochnykh mashyn [Model of technological processes of potato harvesting machines]. Tekhnycheskoe y kadrovoe obespechenye ynnovatsyonnykh tekhnolohyy v selʹskom khozyaystve: materyaly Mezhdunarodnoy nauchno-praktycheskoy konferentsyy, V 2 ch. Mynsk, BHATU, 1, 125-127.
 Hrushetskiy, S.M., Pidlisnyy, V.V. (2019). Analiz konstruktsiy ta rezulʹtaty doslidzhenʹ separatoriv kartoplyanoho vorokhu [Analysis of designs and research results of potato pile separators]. Suchasnyy rukh nauky: tezy dop. VI mizhnarodnoyi naukovo-praktychnoyi internet-konferentsiyi zhurnalu «WayScience». Dnipro, 274-282. [in Ukrainian].
 Fyrman, YU.P., Hrushetskyy, S.N. (2015). Kynematycheskyy analyz raboty dynamycheskoho lentochnoho separatora [Kinematic analysis of the operation of a dynamic belt separator]. MOTROL. Commission of Motorization and Energetics in Agriculture. Vol. 17, 1, 11-16.
 Hutsol, Taras, Firman ,Jurii, Komarnitsky, Sergiy. (2017). Modelling of the separation process of the potato stack. Agricultural Engineering : czasopismo. Polskie Towarzystwo Inżynierii Rolniczej. Vol. 21, 4, 27-35. [in English].
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 Aliev, E., Bandura, V., Pryshliak, V., Yaropud, V., Trukhanska, O. (2018). Modeling of mechanical and technological processes of the agricultural [Modeling of mechanical and technological processes of agricultural]. INMATEH - Agricultural Engineering. vol. 54, 1, 95-104. [in English].
 Pascuzzi,S., Bulgakov, V., Santoro, F., Sotirios, A., Anifantis, Olt J., Nikolaenko, S. (2019). Theoretical study on sieving of potato heap elements in spiral separator. Agronomy Research. 17(1), 33-48. [in English].
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 Hrushetskiy, S.N., Korchak, N.N. and Zaharevich, T.S. (2021). ‘Analysis of separation and transportation mechanisms for root potato harvesters’, Engineering of nature management, (4(22), pp. 63-72. [in Ukrainian].
 Hrushetskiy, S.M., Yaropud, V.M., Babyn, I.A. (2020). Doslidzhennia iakosti separatsii kartoplianoho vorokhu pidkopuval'nymy robochymy orhanamy kartoplezbyral'noi mashyny [Investigation of the quality of potato heap separation by digging working bodies of a potato harvester]. Vibratsii v tekhnitsi ta tekhnolohiiakh, 1(96). Vinnytsia, 125-140. [in Ukrainian].
131 - Applied Mechanics
132 - Materials Science
133 - Industry engineering
141 - Power engineering, electrical engineering and electromechanics
208 - Agricultural engineering
The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences
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Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.
Founder of the journal: Vinnytsia National Agrarian University
Editor-in-chief: Oleksii Tokarchuk - Ph.D., Associate Professor, VNAU (Vinnytsia)
Deputy Editor-in-Chief: Natalia Veselovska - Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)
Executive Secretary: Yuriy Polevoda- Ph.D., Associate Professor, VNAU (Vinnytsia)
Members of the Editorial Board:
Tokarchuk O.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Veselovska N.R. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University
Polevoda Yu.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Jordan Todorov Maximov - Doctor of Technical Sciences, Full Professor, Technical University of Gabrovo (Bulgaria)
Bulgakov V.M. - Doctor of Technical Sciences, Full Professor, Acad. NAAS, National University of Life and Environmental Sciences of Ukraine
Hraniak V.F. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Ivanchuk Y.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Technical University
Iskovich-Lototsky R.D. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Technical University
Kupchuk I.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Sevostianov I.V. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University
Spirin A.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Tverdokhlib I.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Tsurkan A.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Agrarian University
Yaropud V.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University
Type of publication: journal
Kind of publication: scientific
Publication status: domestic
Year of foundation: 1997
Periodicity: 4 times per year
Volume: 18-20 conv. print. sheet (А4)
ISSN: 2520-6168 (print version), (online version)
Language of publication: (mixed languages) Ukrainian, English
The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.
The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.
The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".
Subscription to the journal can be issued in each post office. The subscription index is 99720.
It was founded in 1997 under the title "Bulletin of the Vinnitsa State Agricultural Institute." According to the Decree of the Presidium of the Higher Attestation Commission of Ukraine of September 11, 1997, this publication received the status of a professional in which it is allowed to publish the main results of dissertation researches.
In 2001-2014 the journal published under the title “Collection of scientific works of Vinnytsia National Agrarian University. Series: Technical Sciences "(Certificate of State Registration of Mass Media KV No. 16644-5116 PR of 04/30/2010).
Since 2015 journal has title "Engineering, Energy, Transport AIC" (Certificate of State Registration of Mass Media No. 21906-11806 P dated 03/12/2016).