RESEARCH PAPER
Friction lining coefficient of the drive friction pulley
| 1 | Faculty of Mining, Ecology, Process Control and Geotechnology, Technical University of Kosice, Park Komenskeho 14, 042 00 Kosice, Slovak Republic |
| 2 | Faculty of Mechanical Engineering, Technical University of Košice, Letná 9, 042 00 Košice, Slovak Republic |
Publication date: 2021-06-30
Eksploatacja i Niezawodność – Maintenance and Reliability 2021;23(2):338–345
HIGHLIGHTS
- The compare tests of the friction linings of mining hoisting system.
- The friction coefficient stability tests of the friction linings.
- The friction coefficient dependences on the weather conditions were analysed.
- Hardness was chosen as a representative property of the tested friction lining
KEYWORDS
ABSTRACT
Mine hoisting KOEPPE system or friction hoist winch work with traction pulley, the pulley rim grooves are lined. Lining has to provide a higher friction coefficient between the
rope and the traction pulley. The constructors of mine hoisting machines require from the
manufacturers a guaranteed appropriate and stabile value of a friction coefficient at different
pressures between a rope and a friction lining under different external conditions (drought,
moisture, icing, etc.). The paper presents processed measurements performed on the six
samples of the friction lining (G1-G6) made of rubber and the sample of the standard used
friction lining (K25). The samples (G1-G6) differ in the chemical composition of the rubber.
Due to the confidentiality of the material composition of the friction linings the hardness of
the lining material as a discriminator was chosen. The measured values of the friction coefficient of the rubber friction lining samples were compared with the values of the friction
coefficient of the friction lining (K25) usually mounted on friction lining pulley
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