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Browsing by Subject "shaft reinforcement"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    A newly patented method for measuring the actual forces of hoist vessel impact on shaft reinforcement
    (Wydawnictwa AGH, 2021) Ćwiertnia, Krzysztof
    Observations and conclusions regarding a new method of measuring shaft hoist vessel forces acting on the structure of shaft reinforcement are presented in the article. The idea behind this method is the direct absorption of the forces resulting from the impact of the measuring rollers (front and two side rollers) attached to the vessel by the guide and transferring them to the measuring elements, i.e. through a hydraulic actuator, pressure transducer and recorder. The recorder also receives a signal from an optical sensor, which determines the position of the vessel in the shaft. The method allows measuring the actual values of hoist vessel forces acting on shaft reinforcement, without any simplifications, theoretical assumptions and complicated mathematical functions.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Difficulties related to the renovation of the reinforcement of the V shaft at PGG Oddział KWK Ruda Ruch Bielszowice
    (Wydawnictwa AGH, 2019) Płachno, Marek; Baranowski, Sławomir; Ośliźniok, Ireneusz
    The article presents an analysis of the possibility of carrying out repairs of shaft reinforcement without limiting its transport tasks, with operating parameters in accordance with the technical documentation of the shaft hoist, specified technical condition of the girders and guides, using the capital of knowledge and experience in maintaining the required level of safety for guiding the extraction vessels in conditions of the acceptable wear of guides and girders included in the mine shaft hoist documentation.