Issue №: 3(114)
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.
JUSTIFICATION OF RAKE ANGLE PARAMETERS REGARDING MOVEMENT AND RAKING OF HAY WITH ROTARY RAKES
Paladiychuk Yuriy – Candidate of Science (Engineering), Associate Professor of the Department of Agroengineering and Technical Service of Vinnitsa National Agrarian University (3 Soniachna St., Vinnitsa, 21008, Ukraine, e-mail: rewet@vsau.vin.ua).
Stetsyuk Pavlo – Postgraduate Vinnytsia National Agrarian University (3 Sonaichna Street, Vinnytsia, 21008, Ukraine, email: stetsiyk.pavel@gmail.com).
In modern conditions of agricultural production, improving the efficiency of hay harvesting technologies is an important task for ensuring quality fodder for livestock. One of the key elements in this process is the use of rotary rakes to move and rake the hay. The efficiency of these machines largely depends on the design parameters, in particular the angle of inclination of the rakes, which affects the quality and speed of technological operations.
Increasing the efficiency of harvesting hay and reducing the loss of nutrients has led to the development of a wide range of machines for stirring, raking and turning grass. These machines are classified according to purpose, design features and technological processes. Among them are stirrers, roller rotators, rakes and rake-stirrers, each of which has a specific function in the forage harvesting process. The most common are rotary shakers, which ensure uniform and fast drying of the grass. Rakes and roll rotators, in turn, form rolls for further harvesting. Universal rake-movers can perform several functions, increasing the efficiency of the haymaking process.
The work describes the design and principle of operation of the rotor of a shaker-separator with centrifugal working bodies. The main attention is paid to the analysis of the gripping parameters of the rakes and the influence of the angle of inclination of their fingers on the gripping width. Mathematical dependencies are proposed for determining the grip width and rotor radius depending on the angle of inclination of the fingers and the angle of deflection of the rotor. Design requirements to ensure clean raking and minimize losses of cut plants are considered. Also, the required length of the rake fingers is determined and examples of adjusting their position to perform various technological operations are given.
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About the journal
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
The journal is devoted to highlighting current issues in engineering, mechanical engineering, and technological processes, including the study of dynamic and oscillatory phenomena in technical systems, the application of mathematical methods for process modeling and analysis, as well as the presentation of results of design-engineering and technological developments. Particular attention is given to the study of vibration processes and their application in modern technologies.
The purpose of the scientific journal “Vibrations in Engineering and Technologies” is to disseminate the results of fundamental and applied research in the field of engineering sciences aimed at developing theoretical foundations and practical approaches to the design, analysis, and improvement of machines, materials, and technological processes, including the use of vibration and oscillatory effects in various sectors of production.
The publication is focused on the formation of a modern scientific and informational environment for the effective exchange of research results, support of innovative development, and implementation of advanced technical solutions in industry, agro-industrial production, and related fields.
The journal promotes the development of interdisciplinary research, the integration of modern engineering approaches, and the enhancement of the efficiency of technological processes and technical systems, including through the rational use of vibration phenomena.
Objectives of the Scientific Journal
To achieve its stated purpose, the journal addresses the following key objectives:
dissemination of results of fundamental and applied scientific research in the fields of mechanics, mechanical engineering, technological processes, machine dynamics, and equipment, as well as in areas related to the application of vibration phenomena in engineering and technologies;
promotion of research aimed at the creation and improvement of machines, mechanisms, and technological equipment based on oscillatory and vibration processes;
support for the implementation of modern technological solutions focused on improving productivity, energy efficiency, and reliability of technical systems;
обеспечение scientific exchange of research results among research institutions, higher education establishments, and industrial enterprises;
development of interdisciplinary cooperation among researchers in the fields of mechanics, materials science, material processing technologies, and automation of technological processes;
dissemination of modern scientific achievements and advanced technologies related to the application of vibration processes in production and technical systems.
Publisher Vinnytsia National Agrarian University
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 119 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Ihor Kupchuk, Candidate of Technical Sciences, Associate professor, Associate Professor of the Department of Engineering Mechanics and Technological Processes in the Agricultural Industry Faculty of Engineering and Technology Vinnytsia National Agrarian University is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
