Development of Longwall Shearers’ Haulage Systems as an Alternative to the Eicotrack System Used Nowadays

Longwall shearers’ haulage system of the Eicotrack type, used most often nowadays, is presented in this article. Its disadvantages, causing problems with a correct operation mechanized longwall shearer systems, are discussed. The concept innovative Flextrack, which should reduce occurrence disadvantages mentioned above, described. A course and research results, connected rig tests Flextrack functionality, presented. Measurement results wear stresses, obtained for compared Based on an analysis modified version Komtrack was suggested manufactured. This tested field conditions, similar to underground conditions mine coal longwall. confirmed its full functionality lack experienced case systems. At present, Piast mine, where comparative conducted. big part article developed as project KOMTRACK jointly implemented by KOMAG Institute Mining Technology, AGH University Science Łukasiewicz Research Network—Cracow Specodlew Innovative Foundry Company Polish Group Inc., co-financed European Regional Development Fund (Contract No. POIR.04.01.04-00-0068/17).