Excavator boom load study dragline

The relevance of the work is due to the need of design departments involved in the design of dragline excavators in methods that allow justifying design parameters in terms of reliability, and at the same time leading to weight reduction. Purpose of the work: development of a methodology for calculating the strength and calculating the loads on the elements of the boom during the transportation of the bucket. The boom is affected by its own gravity, the force on the head blocks from the lifting rope, acting in a vertical plane. Transportation of the bucket from the end point of digging to the point of unloading occurs with the simultaneous rotation of the platform, while along with the forces of gravity, the boom is affected by centrifugal and inertial forces acting in horizontal planes. Research methodology: mathematical modeling of the workflow. The studies were carried out for the boom ESH-10.70, designed by the design department of the Joint Stock Company “EKGService”, Chelyabinsk. Results. For a dragline excavator, a mathematical model has been developed for calculating forces during bucket transportation, an algorithm and a program in an algorithmic language that allow determining forces in the elements of working equipment. The created mathematical model is intended for use in the calculation of stresses in the elements of the boom. The formulas for calculating the loads on the boom, the algorithm, the calculation results for the excavator are given.

Shestakov V. S., Brozovskiy S. Yu., Davydov P. V. Excavator boom load study dragline. MIAB. Mining Inf. Anal. Bull. 2024;(1-1):167—178. [In Russ]. DOI: 10.25018/0236_149 3_2024_011_0_167.

Shestakov V. S., Cand. Sci. (Eng.), Ural State Mining University, 620144, Russia, Yekaterinburg, st. Kuibyshev, 30, E-mail: shestakov.v.s@mail.ru (сorresponding author);
Brozovskiy S. Yu., JSC “Uraltransmash”, Ekaterinburg, 620017, st. Front brigades, 29;
Davydov P. V., Technical Director of EKGService JSC, 454091, Chelyabinsk, st. Karl Marx, 131−414.

1. Penchuk V. A., Penchuk V. A., Kruglov D. A. Influence of boom length on dragline performance. Ground transport and technological complexes and means: Proceedings of the International Scientific and Technical Conference, Tyumen, February 08, 2021. Tyumen, Tyumen Industrial University, 2021, pp. 159–162.

2. Tsymbalyuk T. A., Cheskidov V. I. Methodology for selecting a dragline model for overburden mining in open-pit mines. Physico-technical problems of mineral development. 2020, no. 4, pp. 59–69. DOI: 10.15372/FTPRPI20200407.

3. Cheskidov V. I., Norri V. K. Stripping with direct dumping in Kusbass open pit mines: the current state and prospects. Journal of Mining Science. 2016, vol. 52, no. 4, pp. 725–731.

4. Li Y., Liu W. Comparison of advanced dragline dynamics models for efficient engineering analisys. The International Journal of Advanced Manufacturing Technology. 2014, vol. 72, no. 5, pp. 757–764.

5. Tyulenev M., Markov S., Zhironkin S., Gasanov M., Cehlár M. The choice of technology and equipment for coal seams of different bedding excavacion at Kusbass surface mines based on digging capacity and unit costs. Acta Montanistica Slovaca. 2021, vol. 26, no. 4, pp. 603–619.

6. Tsymbalyuk T. A., Cheskidov V. I. Selection procedure of draglines for strippingoperations in surface mining. Journal of Mining Science. 2020, vol. 56, no. 4, pp. 557–566.

7. Martyanov V. L., Markov S. O., Kolesnikov V. F. Study of inclined deposits opening under the combined mining system: Kureinsky area case-study. Journal of Mining and Geotechnical Engineering. 2021, no. 4(15), pp. 64–88. DOI: 10.26730/2618-7434-2021-4-64−88.

8. Somua-Gyimah Godfred, Frimpong Nyaaba Wedam, Gbadam Eric. Formation fragmentation modeling and impact on dragline excavation performance in surface mining operations. International Journal of Mining Science (IJMS). 2019, vol. 5, issue 1, pp. 11–21. DOI: 10.20431/2454−9460.0501002.

9. Poderni R. Yu. Review of the world market of modern excavation and loading equipment for open-pit mining. MIAB. Mining Inf. Anal. Bull. 2015, no. S1, pp. 507–518.

10. Lagunova Yu. A., Komissarov A. P., Shestakov V. S. Design of mining excavators, Moscow, Innovative engineering, 2017, 228 p.

11. Grabchuk M. S. Improving the efficiency of operation of the ESH-10/70 excavator in the winter period in the conditions of the Kaliningrad potash plant. Development of modern science and education: Current issues, achievements and innovations. Collection of articles of the International Scientific and Practical Conference: In 2 parts. Penza, 2022, pp. 74–77.

12. Panishev S. V., Kozlov D. S., Maksimov M. S. Complex monitoring of the dragline operation at a coal deposit in the permafrost zone. MIAB. Mining Inf. Anal. Bull. 2015, no. S30, pp. 185–192.

13. Wei N., Li Ch., Peng X., Zeng F., Lu X. Conventional models and artificial intelligencebased models for energy consumption forecasting: A review. Journal of Petroleum Science and Engineering. 2019, vol. 181, 106187.

14. Lyakhomsky A. V., Petukhov S. V. Energy Efficiency of Excavator Works at Coal Mining Enterprises. Industrial Energy. 2019, no. 1, pp. 38–41.

15. Kritsky D. Yu., Mutygullin A. V., Shigin A. O., Bardakov V. V. Organization of monitoring of dragline excavator booms in operation mode. Gornyi Zhurnal. 2018, no. 2, pp. 91–96. DOI: 10.17580/gzh.2018.02.13.

16. Kritsky D. Yu., Mutygullin A. V., Shigin A. O., Bardakov V. V. Organization of monitoring of dragline excavator booms in operation mode. Mining Journal. 2018, no. 2, pp. 91–96. DOI: 10.17580/gzh.2018.02.13.

17. Panfilova O. R., Velikanov V. S. Some aspects of calculation and selection of parameters of elements of metal structures of mining transport machines. MIAB. Mining Inf. Anal. Bull. 2020, no. 1, pp. 141–148. DOI: 10.25018/0236-1493-2020-1-0−141−148.

18. Pobegailo P. A., Kritsky D. Yu. Development of an engineering approach to assessing stresses in the metal structures of dragline excavators. Technological equipment for the mining and oil and gas industries. Proceedings of the XVIII International Scientific and Technical Conference “Readings in Memory of V. R. Kubachek”, held as part of the Ural Mining Decade. Yekaterinburg, 2020, pp. 335–340.

19. Brozovsky S. Yu., Shestakov V. S. Calculation of efforts in dragline ropes when the bucket enters the stretch zone. Technological equipment for the mining and oil and gas industries. Proceedings of the XXI International Scientific and Technical Conference held within the framework of the Ural Mining Decade. Yekaterinburg, 2023, pp. 237–240.