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common damages to chains used in scraper conveyors are presented and the reasons of their wear are discussed.
these tests are presented. Based on the values obtained during the dynamic tests, the characteristic parameters of the above mentioned measurements were determined.
will focus on the zones of links cooperation under load. The concept was preceded by a theoretical introduction illustrating the nature of the wear of chain links and the synergy of wear processes. 3D model of the test stand and proposals for technical solutions of each component were discussed. The test stand will enable testing the environmental factors increasing the intensity of the wear process in several arrangements. These include, among others mineral abrasive, mine water and dynamic forces acting on the chain. The method of verifying the concept of the test stand using the simplified prototype made in the 3D printing technology was also presented.
artykule przedstawiono koncepcję otwartego i zamkniętego układu chłodzenia górniczych maszyn dużych mocy. Stanowią one alternatywę dla metody powszechnie wykorzystywanej. Porównano wady i zalety omawianych układów w zależności od warunków zastosowania.
high-power mining machines is presented. This is an alternative to the commonly use method. Advantages and disadvantages of the discussed systems are compared.
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