Scholarly record
NEW SOLUTIONS OF MINING TOOLS FOR HARD ROCK MINING
Abstract
Great problem of mechanical hard rock mining is low durability of mining tools. In Department of Mining, Dressing and Transport Machines, AGH UST in Cracow new solutions of mining tools and their holders were developed. In paper, a special tool to replace traditional rotary pick (so called crown-shaped pick), new lubricated holder for rotary-tangential picks, asymmetrical disc cutters, results of laboratory, field and industrial tests were described. Crown-shaped pick has the same type of handle as standard solutions, the difference lays in cutting segment which is consisted of truncated cone shape with 7 пїЅ 8 carbide inserts in the cutting edge. Such construction allows increasing number of pick turnovers. Also, the improving of pick working conditions in holder was main reason for developing of lubricated holder for rotary-tangential pick. This solution allows to supply of emulsion between pick handle and internal surface of holder, what results in symmetrical wear of cutting edge and increases lifetime of the tool. The results of laboratory tests, as well as first field tests using roadheaders and elaborated new conception of lubricated crown tool were presented.
Publication Impact Profile
Publication details
References6
Feliks. J.: Granulowanie dolomitów i wapieni w granulatorze wibracyjnym. Przemysł Chemiczny. tom 94, nr 5/2015, pp. 771-773,
Kotwica K, Gospodarczyk P., Kałukiewicz A., Łapa D.: Noże koronowe – narzędzia nowej generacji do urabiania skał zwięzłych. Maszyny Górnicze nr 4/2006, pp. 19-24,
Kotwica K., Feliks. J, Bołoz Ł., Kulinowski P., Kasza P., Kipczak P., Władzielczyk K., Nawrocki M., Mendyka P.: Wybrane problemy urabiania, transportu i przeróbki skał trudnourabialnych – Part I. Monography, AGH Publishers, Kraków 2016,
Kotwica K., Gospodarczyk P.: Hard Rock Mining with use of New Cutting Tools. Journal of Mining Sciences. Vol. 39, No. 4 2003. pp. 387-393,
Kotwica K.: The influence of water assistance on the character and degree of wear of cutting tools applied in roadheaders. Archives of Mining Sciences. Vol. 56, 2011. pp. 353-374,
Kotwica K.: Effect of selected working conditions of cutting picks on their wear during the mining of hard rocks. Quarterly Mechanics and Control, Vol. 29/3, Kraków 2010, pp. 110-119,
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
