Efficiency of operation of a quarry excavator as an ergatic system

The paper considers the problem of efficiency of functioning of excavators with a large unit capacity as an ergatic system due to the increasing number of such machines in the technological fleets of enterprises. In order to minimize all possible deviations from the basic conditions of the excavator operation, field observations of the excavator EKG-20KM at one of the iron ore quarries in Russia during its warranty service support with shift crews were carried out. Differences in the excavator control by drivers of one crew and their influence on the probability of equipment failures were revealed. Unplanned equipment failures were analyzed with a breakdown for each shift. At transition of excavator drivers to control the machine of greater unit capacity, it is noted about adaptation period equal to the order of one year of operation, which is characterized by more loaded modes of operation and increased flow of failures of elements of working equipment. For revealing of regularities of influence of qualification of the driver the modeling of process of functioning of the quarry excavator at loading of a rock mass in a dump truck with carrying capacity of 220 tons has been carried out. Regularities of change of dynamic processes of excavator loading in the process of rock mass recruitment by drivers of different qualification are revealed. The zones of change of dynamic component of load during excavation of rock mass and extremely different depending on the qualification of the operator are revealed.

Shibanov D. A., Ivanov S. L., Sheshukova E. I., Nedashkovskaya E. S. Efficiency of operation of a quarry excavator as an ergatic system. MIAB. Mining Inf. Anal. Bull. 2023; (11-1):144-158. [In Russ]. DOI: 10.25018/0236_1493_2023_111_0_144.

D.A. Shibanov¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: shibanov_da@pers.spmi.ru, ORCID ID: 0000-0002-6203-0219,
S.L. Ivanov¹, Dr. Sci. (Eng.), Professor, e-mail: Ivanov_SL@pers.spmi.ru, ORCID ID: 0000-0002-7014-2464,
E.I. Sheshukova¹, Graduate Student, e-mail: s225067@stud.spmi.ru,
E.S. Nedashkovskaya¹, Graduate Student, e-mail: s225069@stud.spmi.ru,
¹ Empress Catherine II Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

D.A. Shibanov, e-mail: shibanov_da@pers.spmi.ru.

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