Vibrations in engineering and technology

Bulgakov Volodymyr - Academician of NAAS, Doctor of Technical Sciences, Professor of the Department of Mechanics National University of Life and Environmental Sciences of Ukraine, 12B, vul. Heroes of Defense, Kyiv, 03041 e-mail: vbulgakov@meta.ua.

Solona Olena – Candidate of Technical Sciences (Ph. D in Engeneering), Associate Professor of the Department of General Technical Disciplines and Labor Protection, Vinnytsia National Agrarian University (3, Solnyschaya St., Vinnytsia, Ukraine,21008, e-mail: solona_o_v@ukr.net).

Ignatiev Eugene - Candidate of Technical Sciences, Senior Lecturer of the Department of Machine Use in Agriculture Tavriya State Agrotechnological University named after Dmitry Motorny.

Among the problems of mechanized harvesting of sugar beet, the most important is the cutting of the bud from the heads of root crops that are in the soil. Based on the analysis of numerous design developments and research, a two-phase method of performing this technological operation is promising at this time. Thus as a result of performance of the first phase the continuous copyless cut of all green massif of a top, its collecting and transportation is carried out and the following phase - clearing of heads of root crops of the remains of a top or additional pruning of heads. The effectiveness of this method of harvesting hyphae is obvious, because the cut green mass of sugar beet hyphae can be used as animal feed or to produce biogas. A rotary cutting device with a horizontal drive shaft can be used as a cutting device. The collection of the hitch from the entire width of the coverage of the hitch-harvesting machine can be effectively carried out by means of an auger conveyor, and the loading of the cut hitch into the vehicle - by means of a loading device of the throwing type. In the course of the research a new three-row hook-harvesting machine was developed, which implements the above principles of work. The hitch harvester is aggregated by frontal attachment to a wheeled tractor of traction class 1.4, equipped with a front PTO shaft. We conducted field experimental studies to determine the performance of this hitchhiking machine. For this purpose, a program and methodology for conducting such experimental studies were developed, the results of which were processed by statistical methods on a PC using the basic methods of regression and correlation analysis. As a result of the analysis of the obtained values it was found that the rational values of the speed of the hitch harvester are 1.5… 2.0 m ∙ s – 1 at the height of the cut of the hitch, which is equal to 0.02 m and the rotor speed of 1000 rpm-1. The operational indicators are obtained: productivity when aggregating with a wheeled tractor of class 1.4 - 2.15 ha • year – 1; specific fuel consumption - 3.02 kg • ha – 1; specific investments - UAH 291.33 • ha – 1; reduced operating costs - UAH 441.18 • ha – 1. The obtained results of researches of operational indicators of the developed three-row hook-harvesting machine turned out to be 1.5… 1.8 times better in comparison with serial hook-harvesting machines.

1. Bulgakov, V.,Adamchuk, V.,Nozdrovický, L., Ihnatiev, Ye. (2017). Theory of Vibrations of Sugar Beet Leaf Harvester Front-Mounted on Universal Tractor. Acta Technologica Agriculturae. Nitra, Slovaca Universitas Agriculturae Nitriae, 20(4), 96–103. [in English].

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6. Bulgakov V., Golovach I., Ivanovs S., Ihnatiev Y. (2017) Theoretical simulation of parameters of cleaning sugar beet heads from remnants of leaves by flexible blade. Engineering for rural development. Jelgava, 288–295. [in English].

7. Ignatiev E.I., (2016). Development of a new constructive and technological scheme for harvesting sugar beet tops using a tilled-crop tractor. Bulletin of Agrarian Science. 8, 67–71. [in Russian].

8. V. Adamchuk, V. Bulgakov, V. Nadykto, Y. Ihnatiev, J. (2016).Theoretical research into the power and energy performance of agricultural tractors Agronomy Research. 5, 1511–1518. [in English].

9. Bulgakov V., Adamchuk V., Ivanovs S., Ihnatiev Y. (2017), Theoretical investigation of aggregation of top removal machine frontally mounted on wheeled tractor. Engineering for rural development. Jelgava.. Vol. (16), 273–280. [in English].

10. Bulgakov, V. M. (1993). Sovershenstvovanie tekhnologicheskogo proczessa i mashin dlya uborki korneplodov svekly [Improvement of the technological process and machines for harvesting beet root crops]: avtoref. dis. na soiskaniya nauchnoj stepeni d-ra tekh. nauk. Moskva: VISKhOM. [in Russian].

11. Bulgakov V. M.,  Adamchuk V. V., Nozdrovicky L., Boris M. M., Ihnatiev Ye. I. (2016).  Properties of the sugar beet tops during the harvest. 6th International Conference on Trends in Agricultural Engineering. Prague, Czech Republic. P. (7-9), 102–108. [in English].