DYNAMIC CHARACTERISTICS OF MECHANICAL COMPONENTS INSIDE THE BALL MILL HOUSING
DOI:
https://doi.org/10.47390/ts-v3i5y2025N9Keywords:
ball mill, vibrations, dynamics, MShTs, NMMC, housing, bearings, wear resistance, diagnosticsAbstract
This article investigates the dynamic characteristics of key mechanical components of a ball mill operated at the enterprises of the Navoi Mining and Metallurgical Combine (NMMC). The vibrational loads acting on the bearing supports, drive system, and mill housing lining are analyzed. Using the finite element method (FEM) and spectral analysis, resonance frequencies, zones of dynamic stress concentration, and causes of accelerated wear have been identified. Recommendations are provided to reduce vibrations and extend the service life of the equipment
References
1. Кулагин М.И., Красовский В.Н. Барабанные мельницы. Теория и расчёт. — М.: Недра, 1984. — 212 с.
2. Stępień P., Banasiak G., Woźniak A. Diagnostics of the internal dynamics of the industrial ball mills // Journal of Vibroengineering. — 2019. — Т. 21. № 4. — С. 1045–1056.
3. Choudhury A.K., Das R. Vibration analysis of ball mill using experimental and finite element method // Int. Journal of Mechanical Engineering Research. — 2008. — Т. 3. № 2. — С. 33–40.
4. Cleary P.W. Simulation of charge motion in ball mills. Part 1: Experimental verifications // Minerals Engineering. — 2001. — Т. 14. № 11. — С. 1351–1364.
5. Официальный сайт Навоийского ГМК: https://ngmk.uz
6. ГОСТ 7524–89. Мельницы барабанные. Технические условия.
7. Жуманазаров А.Р., Эгамбердиев И.П., Очилов У.Ю. Разработка модели дискретных элементов для шаровых мельниц. Proceedings of the v-international conference on integrated innovative development of zarafshan region: achievements, challenges and prospects. 2024. Vol.2. 11-12 p.
8. Жуманазаров А.Р., Эгамбердиев И.П., Очилов У.Ю. Влияние объема суспензии на процесс измельчения вращающейся мельницы с использованием мультиметодного подхода и анализа параметров. Proceedings of the v-international conference on integrated innovative development of zarafshan region: achievements, challenges and prospects. 2024. Vol.2. 17-18 p.
9. N. Karimova, U. Ochilov, Sh. Yakhshiev I. Egamberdiev, Predictive maintenance of cutting tools using artificial neural networks, XIV International Conference on Transport Infrastructure: Territory Development and Sustainability (TITDS-XIV-2023). 2023.
10. Sh. Yakhshiev, E. Egamberdiev, A. Mamadiyarov, Kh. Ashurov, N. Khamroev, Research on Engineering Structures and Materials 9(1), 163-179, 2023.
11. N. Karimova, U. Ochilov, O. Tuyboyov, Sh. Yakhshiev, I. Egamberdiev, Advanced surface roughness characterization using 3D scanning technologies and YOLOv4, IV International Conference on Geotechnology, Mining and Rational Use of Natural Resources, GEOTECH-2024