Abstract
Roadheading machines are commonly used in Polish coal mining, for works related to proper maintenance of the false floor in the corridor excavations. These are self-running machines on a tracked electro-hydraulic drive chassis. During drilling, a hydraulic pump driven by an electric motor, powered by a drop-down cable connected to the mine power network. The disadvantage of this solution is the limited mobility and exposure of the cable to the mechanical damage. In connection with the above, work was undertaken to develop a drive system powered by battery cells. This work was undertaken at the KOMAG Institute of Mining Technology, in cooperation with the mining machinery manufacturer HYDROTECH S.A.This paper presents the results of research on the energy consumption of the Roadheading machine, based on which the technical and technological assumptions of the innovative solution were specified. The results of laboratory tests on the safe use of selected lithium cells are also presented together with stand tests of the innovative power supply system. All of the work was concluded with the prospects for the development of mining drives for small mechanization machines in the perspective of the coming years.
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