Vibrations in engineering and technology

From a brief analytical review of the works devoted to the research of the digging working bodies of potato harvesting machines, it can be seen that by the present time considerable theoretical and experimental material has been accumulated, which reveals the regularities of the processes of interaction of working bodies of different structures with the bulbous mass. However, to date, it has not been possible to create a sufficiently efficient, reliable, low-energy device that satisfies all the agrotechnical requirements of a potato harvester and the problem of developing such a device still remains relevant.

Considering the urgency of the issues related to the development of the bribery working bodies in the creation of reliable high-performance potato harvesting machines of relatively low energy intensity, in this work the aim is to systematize and generalize the research on modern technologies for growing and harvesting potatoes and to create a new construction of the bribery working potato took together with the tubers a minimum amount of soil and provided the possibility of better crushing of the formation to facilitate separation when increasing the ex plutational productivity, technological reliability of the undermining working body and reducing its traction resistance.

According to the results of the researches, a new combined excavator working body was developed, which contains passive brazing blades and detachable discs with soil hooks and provides work at high speeds. The use of new dredging working bodies will increase the purity of the heap ladder by 30.8% compared to the baseline. It is proved that the installation in the excavation part of the discs with soil hooks on the side surface allows to significantly improve the crumb formation in comparison with the basic variant. As a result of the comparative tests of experimental potato diggers equipped with the developed excavating part, with the use of its final rigging. It is established that the use of detachable disc elements in the undercut part significantly reduces the traction resistance of the experimental undercut working body in comparison with the basic variant of their work, improves the cover of the bourbon layer and allows to increase the purity of the pile ladder. Investigation of wear of the developed gear discs during the research period has shown that in the absence of a manufacturing defect, the life of the disks will be equal to the life of the potato harvester.

[1]    Hrushetskiy S.M. (2016). Analiz suchasnykh tekhnolohiy vyroshchuvannya i zbyrannya kartopli [Analysis of modern technologies for growing and harvesting potatoes]. Zbirnyk naukovykh pratsʹ PDATU. Vyp. 24, chas. 2 (tekhnichni nauky). S. 55-64.

[2]    Hrushetskiy S.M. (2008). Obgruntuvannya konstruktsiyi i parametriv lemishno-polytsevoho kartoplekopacha z barabannym separatorom kartoplyanoho vorokhu [Substantiation of the design and parameters of the blade-shelf potato digger with the drum separator of potato heap]. Dysertatsiya kandydata tekhnichnykh nauk. 05.05.11. Vinnytsya. 285 s.

[3]    Pohorelyy L.V., Tatʹyanko M.V. (2004). Sveklouborochnye mashyny: ystoryya, konstruktsyya, teoryya, prohnoz [Beet-harvesting machines: history, design, theory]. Fenyks. 232 s.

[4]    Dubrovyn V., Holub H., Baranovskyy V., Teslyuk V. (2013). Ydentyfykatsyya protsessa razrabotky adaptyrovannoy korneuborochnoy mashyny [Identification of the process of developing an adapted root harvesting machine]. MOTROL. Commission of motorization and energetics in agriculture. An international journal on operation of farm and agrifood industry machinery. Lublin-Rzeszow. Vol. 15. № 3. S. 243-255.

[5]    Ramsh V.YU., Baranovsʹkyy V.M., Panʹkiv M.R. (2011). Analiz tendentsiy rozvytku robochykh orhaniv dlya separatsiyi vorokhu koreneplodiv [Analysis of tendencies of development of working bodies for separation of heap of roots]. Naukovi notatky. LNTU. Vyp. 31. S. 298-305.

[6]    Baranovsʹkyy V.M., Onyshchenko V.B., Solomka V.O. (2002). Napryamky vdoskonalennya separuvalʹnykh robochykh orhaniv korenezbyralʹnykh mashyn [Areas of improvement of the separating working bodies of root harvesting machines]. Zbirnyk naukovykh pratsʹ NAU „Mekhanizatsiya silʹsʹkohospodarsʹkoho vyrobnytstva”. Tom KHII. Kyyiv. S. 31-42.

[7]    Kaletnik H.M., Pryshlyak V.M., Yaropud V.M., Bulhakov V.M., Pylypaka S.F. Matematychne modelyuvannya rukhu skyby gruntu po ploshchyni kosoho klyna [Mathematical modeling of the motion of a soil slice along the oblique wedge plane]. Vseukrayinsʹkyy naukovo-tekhnichnyy zhurnal «Vibratsiyi v tekhnitsi ta tekhnolohiyakh». VNAU. 2013 r. Vyp. 4 (72). S. 27-36.

[8]    Bulhakov V.M., Pylypaka S.F., Zakharova T.N., Kaletnik H.M., Yaropud V.M. Ploski vertykalʹni kryvi, yaki zabezpechuyutʹ postiyni tysk i shvydkistʹ rukhu materialʹnoyi tochky [Flat vertical curves that provide constant pressure and velocity of material point]. Vseukrayinsʹkyy naukovo-tekhnichnyy zhurnal «Vibratsiyi v tekhnitsi ta tekhnolohiyakh». VNAU. 2014 r. – Vyp. 1 (73). S. 5-12.

[9]    Aliev E., Bandura V., Pryshliak V., Yaropud V., Trukhanska O.. Modeling of mechanical and technological processes of the agricultural [Modeling of mechanical and technological processes of agricultural]. INMATEH - Agricultural Engineering. vol. 54, no.1. 2018. P. 95-104.

[10] Fyrman YU., Hrushetskiy S. (2015). Kynematycheskyy analyz raboty dynamycheskoho lentochnoho separatora [Kinematic analysis of the work of a dynamic tape separator]. MOTROL. Commission of Motorization and energetics in agriculture. Vol. 17. No.1. 11-16.

[11] Hrushetskiy S., Fyrman YU. (2015). Yssledovanye y obosnovanye parametrov lemeshno-otvalʹnoho kartofelekopatelya s barabannym separatorom kartofelʹnoho vorokha [Investigation and substantiation of the parameters of the saw blade potato digger with the drum separator of the potato heap]. MOTROL. Commission of Motorization and energetics in agriculture. Vol. 17. No.1. 17-26.

[12] Hrushetskiy S.M., Zbaravsʹka L.YU., Semenyshena I.V. (2017). Analiz konstruktyvno-tekhnolohichnykh skhem pidkopuvalʹnykh robochykh orhaniv korenebulʹbozbyralʹnykh mashyn [Analysis of structural and technological schemes of the digging working bodies of the rooting machines]. Suchasni problemy zemlerobsʹkoyi mekhaniky: zbirnyk naukovykh pratsʹ XVIII mizhn. nauk. konf. 16-18 zhovtnya 2017 r. m. Kamʺyanetsʹ-Podilʹsʹkyy. Krok. S. 63-65.

[13] Hrushetskiy S.M., Bendera I.M., Bilous S.V. (2008). Patent №31779. MPK (2006). A01D21/00. Lemish korenebulʹbozbyralʹnoyi mashyny [Blades of the rooting machine]. №u200712978. Zayavl. 23.11. 2007. Opubl. 25.04. 2008. Byul. № 8. 6 s.

[14] Hrushetskiy S.M., Horodynsʹkyy V.O., Stavruk D.V., Hromyk B.I., Dudar M.O. (2015). Patent№ 99259. MPK (2015). A01D21/00. Pidkopuvalʹnyy robochyy orhan dlya korenebulʹbozbyralʹnykh mashyn [Undermining working body for rooting machines]. №u201412978. Zayavl. 15.12.2014. Opubl. 25.05.2015.

[15] Hrushetskiy S.M., Zbaravsʹka L.YU., Semenyshena I.V. (2018). Novyy pidkopuvalʹnyy robochyy orhan dlya korenebulʹbozbyralʹnykh mashyny [New digging work body for rooting machines]. Zbirnyk naukovykh pratsʹ PDATU. Kamʺyanetsʹ-Podilʹsʹkyy. Vyp. 26, chas. 2 (tekhnichni nauky).

[16] Stavruk D.V. (2015). Udoskonalennya pidkopuvalʹnykh robochykh orhaniv dlya kartoplezbyralʹnykh mashyn [Improvement of digging working bodies for potato harvesters]. Naukova robota. 05.05.11. Kharkiv. 98 s.

[17]  Horodynsʹkyy V.O., Hrushetskiy S.M. (2016). Obgruntuvannya konstruktsiyi i parametriv pidkopuvalʹnykh robochykh orhaniv dlya kartoplezbyralʹnykh mashyn [Substantiation of the design and parameters of the digging working bodies for potato harvesters]. Naukova robota. 05.05.11. Kharkiv. 87 s.