Thermal analysis of the industrial shoe brakes to reduce the risk of failure during braking

• Autorzy: Ungureanu Miorita , Ungureanu Nicolae Stelian , Cosma Marius

Identyfikatory

DOI

10.24425/ams.2020.132704

• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to develop an assessment methodology for the temperature of the surfach of the friction pair during the braking for mine hoists. During the braking process, the work of friction is transformed into heat at the level of friction surfaces, and in case high temperatures are reached, the friction coefficient is influenced negatively, thus the risk of braking failure exists. In the first part of the study we measured the temperature of the friction surfaces for a particular case of hoist in real braking conditions. In the second part of the study is presented a theoretical model for the calculation of the temperatures resulted in the braking process for the hoist equipped with shoe brakes. The theoretical model for calculation was simulated numerically for a particular case in real braking conditions. Based on the conclusions resulted after the study, a series of hypotheses and recommendations for adjusting the control of the process parameters have been given out, in order to avoid the excessive heating of the brakes of the hoists and, respectively, their improved safety, maintenance and availability.

Słowa kluczowe

EN

temperature; braking; friction surfaces; risk of failure; mining hoist

PL

temperatura; hamowanie; powierzchnia cierna; ryzyko awarii; ciągnik górniczy

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2020
• Tom: Vol. 65, no. 1
• Strony: 35--46
• Opis fizyczny: Bibliogr. 18 poz., fot., rys., tab., wykr.

Twórcy

autor

Ungureanu Miorita

• Technical University of Cluj-Napoca, Faculty of Engineering Cunbm, V. Babes St. 62a, 430083, Baia Mare, Romania

autor

Ungureanu Nicolae Stelian

• Technical University of Cluj-Napoca, Faculty of Engineering Cunbm, V. Babes St. 62a, 430083, Baia Mare, Romania

autor

Cosma Marius

• Technical University of Cluj-Napoca, Faculty of Engineering Cunbm, V. Babes St. 62a, 430083, Baia Mare, Romania

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)