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Vibrations in engineering and technology

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 1(100)

Published: 2021.03.23
DOI: 10.37128/2306-8744-2021-1


Description:
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.

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VIBRATION TECHNOLOGIES IN THE RESTORATION OF THE WORKING BODIES OF AGRICULTURAL MACHINES

DOI: 10.37128/2306-8744-2021-1-2
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The paper deals with the use of vibration vibrations in the restoration of the working bodies of agricultural tillage machines operating under conditions of increased abrasive wear.

The analysis of the existing methods of their restoration is carried out, the substantiation of the use of vibration hardening treatment in repair production is given.

The research carried out on the choice of the optimal parameters of vibration strengthening of the cutting working bodies contributes to an increase in the wear resistance and reliability of soil cultivation equipment.

According to the research results, the change in hardness along the depth of the surface layer of cutting elements of the following agricultural tillage machines: plow shares, opener discs of grain seeders and cultivator paws was established.

Optimal values of the main parameters of vibration processing of cutting elements of the specified working bodies are experimentally determined and substantiated, which reduce the amount of their wear: amplitude A and vibration frequency of the processing tool n, hardening time t.

The change in the magnitude of linear wear along the width of the cutting elements of these parts is shown, as well as data on the intensity of their wear.

Experimentally obtained data on the absolute and relative wear of the diameter and thickness of the blade of the opener discs, which made it possible to choose a more efficient technology for their restoration.

According to the research results, it was found that the specified parts of soil cultivation equipment had the least wear value; they were restored by welding tires, plates or segments from steel 45, followed by surfacing with sormite and strengthened by vibration deformation.

The results of the work will be used to develop technological processes for the restoration of other working bodies of tillage machines by the method of vibration deformation.

 

Annotation

The paper deals with the use of vibration vibrations in the restoration of the working bodies of agricultural tillage machines operating under conditions of increased abrasive wear.

The analysis of the existing methods of their restoration is carried out, the substantiation of the use of vibration hardening treatment in repair production is given.

The research carried out on the choice of the optimal parameters of vibration strengthening of the cutting working bodies contributes to an increase in the wear resistance and reliability of soil cultivation equipment.

According to the research results, the change in hardness along the depth of the surface layer of cutting elements of the following agricultural tillage machines: plow shares, opener discs of grain seeders and cultivator paws was established.

Optimal values of the main parameters of vibration processing of cutting elements of the specified working bodies are experimentally determined and substantiated, which reduce the amount of their wear: amplitude A and vibration frequency of the processing tool n, hardening time t.

The change in the magnitude of linear wear along the width of the cutting elements of these parts is shown, as well as data on the intensity of their wear.

Experimentally obtained data on the absolute and relative wear of the diameter and thickness of the blade of the opener discs, which made it possible to choose a more efficient technology for their restoration.

According to the research results, it was found that the specified parts of soil cultivation equipment had the least wear value; they were restored by welding tires, plates or segments from steel 45, followed by surfacing with sormite and strengthened by vibration deformation.

The results of the work will be used to develop technological processes for the restoration of other working bodies of tillage machines by the method of vibration deformation.

 

Keywords: parameters of vibration hardening, hardness and microhardness, surface wear, reliability, degree of hardening.

List of references

1. Dudnyk V. V., Belovod O. I., Dudnikov I. A., Kanivetsʹ O. V. (2011). Do pytannya znosostiykosti vidnovlenykh robochykh orhaniv silʹsʹkohospodarsʹkykh mashyn. Naukovi notatky. 31. 33-36. [In Ukrainian]

2. Belikov I. A. (2002). Povysheniye dolgovechnosti rabochikh organov pluga keramicheskimi materialami [Increasing the durability of the plow working bodies with ceramic materials]. Extended abstract of candidate’s thesis. Moskva. [In Russian]

3. Pasyuta A. G. (2014). Opredeleniya kharaktera iznosa rezhushchikh elementov pochvoobrabatyvayushchikh mashin. Tekhnologicheskiy audit i rezervy proizvodstva. 6/1 (20). 8-11. [In Russian]

4. Kanivetsʹ O. V. (2011). Vplyv metodu zmitsnennya na napruzhenyy stan obroblyuvanoyi poverkhni. Zemlya Ukrayiny – potentsial enerhetychnoyi ta ekolohichnoyi bezpeky derzhavy. (pp. 35-41) Vinnytsya: VNAU. [In Ukrainian]

5.  Bilousʹka Ya. K. (Ed.) (2007). Problemy realizatsiyi tekhnichnoyi polityky v ahropromyslovomu kompleksi. Kyyiv: NNU «IAE». [In Ukrainian]

6. Reznik N.Ye. (1995). Teoriya rezaniya lezviyem i osnovy rascheta rezhushchikh apparatov. Moskva: Mashinostroyeniye. [In Russian]

 

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About journal

Topics of the journal:

The journal "Vibrations   in engineering  and technology" presents materials on the following issues

• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production

Key information:
ISSN (print): 2306-8744
DOI: 10.37128/2306-8744

The certificateof massmediaState registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University

Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition  : (mixed languages) Ukrainian, Russian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
 Subscription Index is  99720.

 

Old version of site: http://vibrojournal.vsau.edu.ua/

History of journal:

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.