| Issue |
E3S Web Conf.
Volume 41, 2018
IIIrd International Innovative Mining Symposium
|
|
|---|---|---|
| Article Number | 03019 | |
| Number of page(s) | 7 | |
| Section | Innovations in Mining Machinery | |
| DOI | https://doi.org/10.1051/e3sconf/20184103019 | |
| Published online | 26 June 2018 | |
Dynamic Tests of a Leg in a Powered Roof Support Equipped with an Innovative Hydraulic System
1
Center of Hydraulics DOH Ltd,
ul. Konstytucji 147,
41-906 Bytom,
Poland
2
Silesian University of Technology, Faculty of Organization and Management,
Roosevelta 26,
41-800 Zabrze,
Poland
* Corresponding author : dawidszurgacz@doh.com.pl
Static and dynamic loads impact on a powered roof support during its operation. The dynamic loads lead to a number of consequences for the construction and the entire hydraulic system. With the increase of depth and intensity of exploitation, the number of events during which the dynamic load is greater increases. Therefore, it is necessary to research the whole unit of the support and its components under the impact of dynamic load. The article presents the results of tests of a hydraulic leg designed to work in the powered support and dynamically loaded with free fall drop. An innovative hydraulic system type DOH was mounted in the subject leg. As a result of the conducted tests, the dynamic parameters of the tested system were determined. The aim of the research was also to determine the impact of drop’s energy on the operating parameters of the tested system. The tested hydraulic system is a part of an innovative electro hydraulic control system of the powered roof support. The Authors believe that the obtained results will allow to create opportunities for the practical application of the tested system and the entire wireless control system of the mining roof support.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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