Improvement of the service life of mining and industrial equipment by using friction modifiers
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- Category: Content №4 2023
- Last Updated on 28 August 2023
- Published on 30 November -0001
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Authors:
V.V.Hovorukha*, orcid.org/0000-0003-0494-4554, Institute of Geotechnical Mechanics named by N.Poljakov of National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A.V.Hovorukha, orcid.org/0000-0002-6257-1744, Institute of Geotechnical Mechanics named by N.Poljakov of National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2023, (4): 074 - 081
https://doi.org/10.33271/nvngu/2023-4/074
Abstract:
Purpose. Enhancement of the performance, service life and sustainability of industrial vehicles, mining machinery and various equipment by reducing the friction coefficient.
Methodology. Laboratory research on assessing the interaction of friction pairs under external loading, rolling, and sliding in dry friction conditions, as well as the influence of friction modifiers. Industrial experimental studies on the performance indicators of mining machinery under the influence of friction modifiers.
Findings. Actual diagrams depicting changes in the friction coefficient between the contacting surfaces of disc pairs were obtained for four specific loading periods and corresponding pressures of 529, 374, 274 and 187 MPa. These measurements were taken while the discs experienced a 10 % relative slippage and cyclic load interaction during the testing of specimens, with the presence of the repair-recovery compound called “Ideal” and without it, using only dry friction. The new technologies and the new repair-recovery compound “Ideal”, developed at the Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, provide an exceptionally low friction coefficient of 0.04–0.005 and ensure the durability of the protective layer under dry friction before failure, reaching 80–100 thousand cycles at a specific pressure of 529 MPa. At a specific pressure of 187–374 MPa, the protective layer under dry friction provides up to 1 million cycles of interaction.
Originality. The unique properties of the combination of the “Ideal” tribotechnical composition, which forms a metal-ceramic, superhard, refractory, and wear-resistant nanostructured layer on a metal base, have been established. This layer provides protection against wear, dynamic loads, thermal and oxidative degradation, and increases the service life of friction units in industrial equipment by 3–10 times.
Practical value. Based on the results of experimental and acceptance tests of the “Ideal” repair-recovery compound, a decrease in friction coefficient values and an extension of the service life of highly loaded gear mechanisms in mining and industrial equipment by 1.4–2.0 times have been established. It has been found that the protective layer provided by the “Ideal” repair-recovery compound helps reduce the wear mass of friction surfaces by 20 times in the tested samples, ensuring cleanliness of lubricants in equipment and increasing their operational lifespan while saving on maintenance costs.
Keywords: friction modifiers, service life, friction coefficient, wear, industrial equipment
References.
1. Chekhlatyy, N. A., Koval, A. N., & Myalkovskiy, V. I. (2012). The main trends of improving the efficiency and safety of operating mine stationary settings. Forumu hirnykiv, 4, 101-107. Retrieved from https://ir.nmu.org.ua/handle/123456789/150426.
2. Darenskyi, O. M. (2011). Theoretical and experimental research on railway track operation of industrial transport: monograph, (pp. 192-204). Kharkiv: UkrDAZT. ISBN 978-966-2033-59-5.
3. Darenskyi, O. M. (2010). Conditions of wheel and rail contact in the horizontal plane. Sylovi i kinematychni zviazky ekipazhu i kolis, 113, 171-177. ISSN: 1994-7852.
4. Koptovets, O. M. (2012). Research on characteristics of friction and frictional contact oscillation of breaks. Visnyk Zhytomyrskoho derzhavnoho tekhnichnoho universytetu, 71(4), 35-43.
5. Koptovets, O., Bartashevskii, S., Novitskii, O., & Afonin, D. (2014). Perspective ways of mine locomotives autonomy increase. In V. Bondarenko, I. Kovalevska, & K. Ganushevych (Eds.). Progressive Technologies of Coal, Coalbed Methane, and Ores Mining, (pp. 293-296). CRC Press. https://doi.org/10.1201/b17547.
6. Suslov, A. G., & Shalygin, M. G. (2019). A wear model for subrough surface contacts of martensitic steels. Journal of Engineering Tribology, 233(10). https://doi.org/10.1177/1350650119840251.
7. Taran, I. A., & Novitskiy, A. V. (2014). Breaking devices of mining locomotives: monograph. Dnepropetrovsk: NGU. ISBN: 978-966-350-454-4.
8. Hussain, I., Mei, T. X., & Ritchings, R. T. (2013). Estimation of wheel-rail contact conditions and adhesion using the multiple model approach. Vehicle System Dynamics, 51(1), 32-53. https://doi.org/10.1080/00423114.2012.708759.
9. Govorukha, V. V. (2013). Improvement of rail track and railroad switches of the underground rail transport. Ugol Ukrainy, 3, 44-49. ISSN: 0041-5804.
10. Govorukha, V. V., Makarov, Yu. A., & Semidetnaya, L. P. (2018). Enhancing the wear-resistance and track stability of small radius curved tracks. Heotekhnichna mekhanika, 142, 103-114. https://doi.org/10.15407/geotm2018.142.
11. Makarov, Yu. O. (2019). Problems of standard side wear of rails at the sections of difficult operation conditions. Zaliznychnyi transport Ukrainy, 3, 39-45. ISSN: 2311-4061.
12. Demchenko, S. M., Makarov, Yu. O., & Taturevych, A. T. (2020). Problems of using stationary track lubricating devices at AT “Ukrzaliznytsia”. Zaliznychnyi transport Ukrainy, 1, 25-34. ISSN: 2311-4061.
13. Hovorukha, V., Hovorukha, A., & Makarov, Yu. (2022). Research on the dynamic processes of vehicles and an arbitrary configuration rail track, influencing the side wear of the rail head and wheel flange contact surfaces at different values of friction coefficient between them. IOP Conference Series, 970(1), 012029. https://doi.org/10.1088/1755-1315/970/1/012029.
14. Tikhonovich, V. V., & Uvarov, V. N. (2011). Influence of Active Elements of a Machining Medium on Electronic Structure and the Mechanism of Deformation of Surface Layers of Metal at Friction. Uspekhi fiziki metallov, 12(2), 209-239. Retrieved from http://dspace.nbuv.gov.ua/handle/123456789/98162.
15. Derevianko, O. I., & Vatchenko, O. M. (2011). Computer modeling of the process of functional Nano-covering coating. Systemni tekhnolohii, 1(72), 148-154. ISSN: 1562-9945.
16. Sinyakina, S. A., Gorban, O. A., Volkova, G. K., Glazunova, V. A., & Konstantinova, T. E. (2010). Use of high hydrostatic pressure for formation of porous nanoparticles of ZrO₂–3 mol. % Y₂O₃ system and ceramics on their base. Fizika i tekhnika vysokikh davleniy, 12(2), 109-113. Retrieved from http://dspace.nbuv.gov.ua/handle/123456789/69438.
17. Sudnik, L. V., Vityaz, P. A., & Ilyushchenko, A. F. (2012). Diamond bearing abrasive nano-composites: monograph. ISBN: 978-985-08-1425-8.
18. Kotrechko, S., Timoshevskii, A., Mikhailovskij, I., Mazilova, T., Stetsenko, N., Ovsijannikov, O., & Lidych, V. (2015). Atomic mechanisms governing upper limit on the strength of nanosized crystals. Engineering Fracture Mechanics, 150, 184-196. https://doi.org/10.1016/j.engfracmech.2015.03.025.
19. Bulat, A. F., Voloshyn, O. I., Hovorukha, V. V., & Fedoseiev, S. V. (2015). Concepts, formulation, composition, methods of producing and applying repair and restoration mixture “Ideal” based on combination of tribotechnical composition of ingredients with carbon bearing materials and their interspersing in basic friction surface of triboconnection of machines, mechanisms, adherents and various transport. Certificate of copyright registration for the work No. 60799. Date of registration: 23.07.2015. State Intellectual Property Service of Ukraine.
20. Hovorukha, V. V. (2012). TS U 20.5-13444170-001:2012 Repair and restoration lubricating mixture “Ideal” for mining equipment within the UKND 75.100 framework. Date of registration: 09.04.2012. Registration number No. 0442941/1009409. Date of validity: 10.04.2012. Dnipro: IGTM of the National Academy of Sciences of Ukraine.
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