E3S Web Conf.
Volume 177, 2020XVIII Scientific Forum “Ural Mining Decade” (UMD 2020)
|Number of page(s)||6|
|Published online||08 July 2020|
Determination of the working area of a hydraulic excavator
1 Ural State Mining University, 620144, Kuibyshev st., 30, Ekaterinburg, Russia
2 Karaganda State Technical University, 100027, Nursultan Nazarbayev Ave., 56, Karaganda, Repub¬lic of Kazakhstan
The relevance of the work is due to the need of the design departments involved in the design of hydraulic excavators in techniques that reduce the mass of excavators while providing the required technological capabilities. Existing methods are aimed at determining the size of working equipment on the condition of providing a given working area. The methods are based on an algorithm for calculating the boundaries of the working area for the input dimensions of the boom, stick and bucket, if the obtained boundaries do not correspond to the specified ones, then the dimen-sions of the equipment are adjusted and the calculations are repeated. The boundaries of the working zone determined by these algorithms do not take into account the power capabilities - the bucket can be at a given point, but the realized forces on the teeth do not ensure separation of the rock. The article discusses the methodology in which possible digging efforts are calculated at all points where the bucket can be located.
Results. For a hydraulic excavator with working equipment “direct shov-el”, a mathematical model for calculating digging forces, an algorithm and a program in algorithmic language have been developed to determine possible forces in the elements of the working equipment.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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