Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units. One of the ways of the performance improvement is decreasing number of unforeseen failures. To achieve this purpose a mine dump truck part diagnostics should be introduced into a maintenance service procedure. At the same time the process of diagnostics should not increase the machinery downtime, but effectively reveal a condition of motor-wheel gearboxes in the course of dump truck operation. The aim of the research is to increase the reliability and service life of motor-wheel gearboxes of large BelAZ dump trucks. Failure of a motor-wheel gearbox is a rare phenomenon, but the cost of a new gearbox can vary from 3.5 to 10 million rubles. That is why it is important to implement such methods of diagnostics, which allow revealing the condition of gearboxes in the shortest possible time and without disassembling corresponding units. Determination of the actual technical condition of motor-wheel gearboxes is possible by different methods: vibroacoustic; acoustic; thermal; physical and chemical analysis of spent operating materials. The studies showed that none of these methods can be used as a universal one. When justifying and selecting the most suitable method, different factors should be considered, including technological, or a combination of methods should be applied, which will reduce risks, but at the same time increase costs. It is necessary to develop a better diagnostic method based on the use of several methods simultaneously.

coal strip mine, dump truck, reliability, vibration-based diagnostics, thermal conditions, acoustic parameters, oil analysis, Kemerovo region, Kuzbass

1. Dadonov M., Kulpin A., Ostanin O., Suleimenov E. Distribution of static normal reactions to wheels of open-pit dump trucks depending on the longitudinal and cross sections of the open-pit road. In: E3S Web of Conferences. IVth International Innovative Mining Symposium. 2019;105:03009. https://doi.org/10.1051/e3sconf/201910503009

2. Ryabko K. A., Gutarevich V. O. Substantiation of performance indicators of mine monorail locomotives. Mining Science and Technology (Russia). 2021;6(2):136–143. (In Russ.) https://doi.org/10.17073/2500-0632-2021-2-136-143

3. Kuzin E. G., Рudov E. Yu., Dubinkin D. M. Analysis of failures of mining dump truck components under operating conditions. Journal of Mining Equipment and Electromechanics. 2021;(2):55–61. https://doi.org/10.26730/1816-4528-2021-2-55-61

4. Tarazanov I. G., Gubanov D. A. Russia’s coal industry performance for January – December, 2019. Ugol’. 2020;(3):54–69. http://dx.doi.org/10.18796/0041-5790-2020-3-54-69

5. Kosolapov A., Krysin S. The raising influence of information technologies on professional training in the sphere of automated driving when transporting mined rock. In: E3S Web of Conferences. The Second International Innovative Mining Symposium. 2017;21:03012. https://doi.org/10.1051/e3sconf/20172103012

6. Dadonov M., Kulpin A., Borovtsov V., Zhunusbekova A. Effect of aerodynamic loads on redistribution of normal reactions of quarry dump trucks tires. In: E3S Web of Conferences. Vth International Innovative Mining Symposium. 2020;174:03018. https://doi.org/10.1051/e3sconf/202017403018

7. Chicherin I. V., Fedosenkov B. A., Syrkin I. S., Sadovets V. I., Dubinkin D. M. The concept of controlling the unmanned vehicles in open pit mining. Izvestiya Vuzov. Gornyi Zhurnal. 2020;(8):109–120. (In Russ.). https://doi.org/10.21440/0536-1028-2020-8-109-120

8. Gerike B. L., Klishin V. I., Gerike P. B., Drozdenko Y. V. Safety of heavy-duty dump trucks in operation. In: IOP Conference Series: Earth and Environmental Science. International Scientific and Research Conference on Knowledge-based technologies in development and utilization of mineral resources. 4–7 June 2019, SibSIU. Novokuznetsk, Russia. 2019;377:012017. https://doi.org/10.1088/1755-1315/377/1/012017

9. Khazin M. L., Furzikov V. V., Tarasov P. I. Increasing mining dump trucks operation efficiency with the use of gas piston engines. Izvestiya Vuzov. Gornyi Zhurnal. 2020;(2):77–85. https://doi.org/10.21440/0536-1028-2020-2-77-85

10. Dubov G. M., Bogomolov A. R., Grigorieva E. A., Nokhrin S. A. Analysis of the reasons for the lead concentration increase in waste oil of ice KTA 50 of BelAZ 75131 gas-diesel open-pit dump trucks. Bulletin KuzSTU. 2021;(3):84–93. (In Russ.). https://doi.org/10.26730/1999-4125-2021-3-84-93

11. Panasenkov D. A., Zaitsev A. P., Pikalov N., Dubinkin D. M. Development of criteria for ensuring hydraulic processes in narrow channels of the hydraulic system when creating new quarry dump trucks. Bulletin KuzSTU. 2020;(6):98–108. (In Russ.). https://doi.org/10.26730/1999-4125-2020-6-98-108

12. Kusurgasheva L. V., Muromtseva A. K., Bakanov A. A., Prokopenko E. V. Cyclic factors and system restrictions for coal industry development in Russia. Ugol’. 2020;(10):33–39. (In Russ.). https://doi.org/10.18796/0041-5790-2020-10-33-39

13. Dubinkin D. M., Sadovets V. Yu., Kotiev G. O., Kartashov A. V. Overburden and coal transportation research at open pit mines. Journal of Mining and Geotechnical Engineering. 2019;(4):50–66. (In Russ.). |https://doi.org/10.26730/2618-7434-2019-4-50-66

14. Kudrevatykh A. V., Ashcheulov A. S., Ashcheulova A. S. The wear phenomena comparative characteristics of excavators and dump trucks gearboxes. Journal of Mining Equipment and Electromechanics. 2020;(5):51–56. (In Russ.). https://doi.org/10.26730/1816-4528-2020-5-51-56

15. Grabsky A. A., Sergeev V. Yu., Grabskaya E. P. Rationale for choosing a strategy for maintenance and repair of quarry excavators. Ugol’. 2021;(2):14–17. (In Russ.). https://doi.org/10.18796/0041-5790-2021-2-14-17

16. Lel Iu. I., Glebov I. A., Musikhina O. V., Ganiev R. S., Khardik N. V. Energy method of assessing and systematizing open pit automobile transport operating conditions. Izvestiya Vuzov. Gornyi Zhurnal. 2020;(8):14–25. (In Russ.). https://doi.org/10.21440/0536-1028-2020-8-14-25

17. Kudrevatykh A. V., Furman A. S., Ashcheulov A. S., Ashcheulova A. S., Karnadud O. S. Methods for diagnosing the actual technical condition of the BELAZ wheel motor gearbox. Bulletin KuzSTU. 2021;(2):23–28. (In Russ.). https://doi.org/10.26730/1999-4125-2021-2-23-28

18. Kudrevatykh A. V., Ashcheulov A. S., Ashcheulova A. S. Procedure for determining the technical condition of motor-wheel gear of BELAZ dump trucks by oil parameters. Bulletin KuzSTU. 2020;(1):49–55. (In Russ.). https://doi.org/10.26730/1999-4125-2020-1-49-55

19. Burkov V. N., Burkova I. V., Zaskanov V. G. The network programming method in project scheduling problems. Automation and Remote Control. 2020;81:978–987. https://doi.org/10.1134/S000511792006003X (Orig. ver.: Burkov V. N., Burkova I. V., Zaskanov V. G. The network programming method in project scheduling problems. Avtomatika i Telemekhanika. 2020;(6):17–28. (In Russ.). https://doi.org/10.31857/S0005231020060025)

20. Gericke P. B., Gericke B. L. Creation of a unified diagnostic criterion for assessing the technical condition of mining equipment. Journal of Mining Equipment and Electromechanics. (In Russ.). 2021;(2):17–22. https://doi.org/10.26730/1816-4528-2021-2-17-22