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Determining stress fields of shearer-loader picks

Journal Article:

Abstract

Analyzes factors which influence stress distribution in the NK-4 shearer-loader picks during coal cutting. The AFT optically active cover, 0.0015 mm thick, was used. The pick with the AFT cover was loaded using a force of 33 kN. Isoclinic lines showing stress distribution were photographed. Effects of pick design and its holder type on stress distribution were investigated. Investigations showed that distribution of normal stresses in a pick shaft has a non-linear character. The hole in a pick shaft increased stress concentration in that shaft section. Eliminating the hole reduced stress concentration. Reducing shaft length by about 20 mm did not increase stresses in that shaft zone. 15 refs.
Publication Date:
Jun 01, 1987
Product Type:
Journal Article
Reference Number:
CLA-88-080832; EDB-88-119748
Resource Relation:
Journal Name: Mech. Automat. Gorn.; (Poland); Journal Volume: 25:6
Subject:
01 COAL, LIGNITE, AND PEAT; CUTTING TOOLS; STRESS ANALYSIS; SHEARER LOADERS; COAL MINING; DESIGN; DIMENSIONS; DISTRIBUTION; GEOMETRY; RECOMMENDATIONS; STRESSES; STRUCTURAL MODELS; UNDERGROUND MINING; CUTTER LOADERS; CUTTING MACHINES; EQUIPMENT; HAULAGE EQUIPMENT; LOADERS; MATERIALS HANDLING EQUIPMENT; MATHEMATICS; MINING; MINING EQUIPMENT; TOOLS; 012030* - Coal, Lignite, & Peat- Underground Mining- (1987-)
OSTI ID:
7168011
Research Organizations:
Politechnika Slaska, Gliwice (Poland). Instytut Mechanizacji Gornictwa
Country of Origin:
Poland
Language:
Polish
Other Identifying Numbers:
Journal ID: CODEN: MAGOE
Submitting Site:
CLA
Size:
Pages: 17-26
Announcement Date:
Aug 01, 1988

Journal Article:

Citation Formats

Luszczkiewicz, J, and Sikora, W. Determining stress fields of shearer-loader picks. Poland: N. p., 1987. Web.
Luszczkiewicz, J, & Sikora, W. Determining stress fields of shearer-loader picks. Poland.
Luszczkiewicz, J, and Sikora, W. 1987. "Determining stress fields of shearer-loader picks." Poland.
@misc{etde_7168011,
title = {Determining stress fields of shearer-loader picks}
author = {Luszczkiewicz, J, and Sikora, W}
abstractNote = {Analyzes factors which influence stress distribution in the NK-4 shearer-loader picks during coal cutting. The AFT optically active cover, 0.0015 mm thick, was used. The pick with the AFT cover was loaded using a force of 33 kN. Isoclinic lines showing stress distribution were photographed. Effects of pick design and its holder type on stress distribution were investigated. Investigations showed that distribution of normal stresses in a pick shaft has a non-linear character. The hole in a pick shaft increased stress concentration in that shaft section. Eliminating the hole reduced stress concentration. Reducing shaft length by about 20 mm did not increase stresses in that shaft zone. 15 refs.}
journal = {Mech. Automat. Gorn.; (Poland)}
volume = {25:6}
journal type = {AC}
place = {Poland}
year = {1987}
month = {Jun}
}