RATIONALE FOR THE NEEDLE DISC DESIGN OF A ROTARY HARROW WITH THE ANALYSIS OF THE STRUCTURE OF THE BODY OF A BIOLOGICAL ANALOGUE
Yaropud Vitaliy - PhD, associate professor of the Department of agricultural machinery and equipment of the Vinnytsia National Agrarian University (3, Sonyachna St., Vinnytsia, 21008, Ukraine, e-mail: firstname.lastname@example.org).
Borys Volyk - PhD, associate professor of the Department of Tractors and Agricultural Machines of Dnipropetrovsk State Agrarian and Economic University (St. S.Efremova, 25, Dnipro, Ukraine, 49000).
Modern agricultural production persistently requires solving the problems of increasing crop yields, preserving the effective and potential soil fertility on the basis of resource-saving soil-protective technologies that provide complex mechanization of all technological operations with a significant reduction of energy costs. Of particular relevance is the problem of reducing or completely eliminating the proportion of manual labor when performing the most time-consuming technological operations.
A significant reserve for improving the efficiency of land use, increasing the yield of crops is the reduction of time and a significant improvement in the quality of technological operations of tillage.
Known tools with needle working bodies, intended for early spring, pre-sowing and harvesting small surface loosening of stubble background in areas with soils that are prone to wind erosion, are inefficient, and increasing their speed leads to a sharp decrease in quality.
Crop productivity is the result of the interaction of many factors and conditions, the most important of which are: soil fertility, nature of plants, soil and climatic conditions and mechanized tillage technology. The current level of crop culture requires the search for new resource-saving technologies and machines that fully meet the agrobiological requirements of cultivated plants. In this regard, there is a need to rationalize the use of surface tillage, increase their fertility, as well as protection against erosion.
The results of researches of the designs of machines and technologies of surface tillage showed that on the slope lands the most promising is the reception of tillage with leveling of the surface and creation of a micro-cellular structure of the bottom of the loosened layer with fulfillment of all agrotechnical requirements.
On the basis of the analysis of the body of the hedgehog, the elements of functional identification with the rotary harrow disc needle are substantiated. The possibility of adopting the needle control mechanism structure as a biological analogue of the mechanism of elastic attachment of needles to the disc of the harrow has been proved. The design of a disk and variants of execution of needles is offered.
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The journal "Vibrations in engineering and technology" presents materials on the following issues
• Theory of processes and machines
• Mechanical Engineering and materialprocessing
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The certificateof massmediaState registration:kv no 16643-5115 from 30.04.2010 .
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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 94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M PhD , professor, academician NAAS 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.