DBPapers
DOI: 10.5593/SGEM2014/B13/S3.094

TROLLEY FOR SKIP MANEUVRING IN LUPENI MINING PLANT

I. Dumitrescu, V. Itu, B. Cozma
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-09-4 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 3, 729-736 pp

ABSTRACT
Mining trolleys can be used for horizontal haulage and on inclined planes. Trolleys for inclined planes of higher power than 40 …50 kW are very similar in construction and operating principle to winning machines with drums. They can be actuated by cylinderauger reduction gears or with auger reduction gears. In case of cylinder reduction gears, cylindrical electrical-hydraulic brakes are required on the entry shaft, similar to the electro-planes on travelling cranes. The paper presents the adaptation of a 45 kW trolley for inclined plane, to replace a 75 kW trolley used for 27 500 kg skip manipulation, destroyed as a result of a wrong maneuver, in Lupeni Mining Plant. The adaptation means finding solutions to problems regarding mechanical transmission, fixing to the foundation, consolidation of drum bearings and improvement of the ratchet safety mechanism control system.

Keywords: mining trolleys