Improvement of the working equipment of a quarry hydraulic excavator
СОВЕРШЕНСТВОВАНИЕ РАБОЧЕГО ОБОРУДОВАНИЯ КАРЬЕРНОГО ГИДРАВЛИЧЕСКОГО ЭКСКАВАТОРА
Shestakov V.S. Bezkorovayny P.G. Lagunova Y.A. Komissarov A.P. Abrarov R.R.
2025Publishing house Mining book
Mining Informational and Analytical Bulletin
2025#2025Issue 1248 - 61 pp.
The article considers a variant of improving the design of one of the main types of equipment of a hydraulic quarry excavator used in open-pit mining. The studies revealed a disadvantage of currently used hydraulic excavators – the effect of the power flow on the boom, mainly on the lower surfaces, both from the efforts of the boom hydraulic cylinders and from the handle hydraulic cylinders. This action required an increase in the thickness of the boom sheets and, accordingly, the mass. Another disadvantage of existing excavators is the exten-sion of the boom hydraulic cylinders, which have a significant mass, to such a distance from the platform rotation axis that leads to an increase in the overturning moment relative to the slewing ring. Therefore, it is necessary to increase the value of the counterweight. To eliminate the noted disadvantages, a new scheme of the working equipment is proposed with the replace-ment of the boom hydraulic cylinders with a mechanism with a pressure beam located on the superstructure. The second direction for increasing the efficiency of hydraulic excavators is the use of rational parameter values in the manufacture of working equipment. The article shows, based on the use of the APM WinMachine system, a method for determining the thickness of sheets from which the boom, handle and bucket (working equipment) of a hydraulic excavator are made. The best parameters of the working equipment are determined according to the strength condition, taking into account the mass criterion.
calculation , model , strength , stress , working equipment of a hydraulic excavator
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Ural State Mining University, Ekaterinburg, Russian Federation
Karaganda Technical University named after Abylkas Saginov, Karaganda, 100027, Kazakhstan
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg, 620002, Russian Federation
Ural State Mining University
Karaganda Technical University named after Abylkas Saginov
Ural Federal University named after the first President of Russia B.N. Yeltsin
10 лет помогаем публиковать статьи Международный издатель
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