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Protection and Troubleshooting of Coal Mine Electrical Cables - 4 Volume Set. Volume 1 - Shuttle Car Reel Test Unit.

Authors
Anonymous
Source
NTIS: PB/235-639 Available for Reference At Bureau Libraries :102 pages
Link
NIOSHTIC No.
10001178
Abstract
Severe whipping of shuttle car trailing cables occurs when the car stops suddenly or reverses direction. This causes cable damage and can seriously injure personnel near the cable. This report (contract h0122011) describes work to develop a reel control system that will reduce or eliminate whipping. Results of engineering effort show that the following conditions are primarily responsible for the whipping problem: poor quality hydraulic components, improper adjustment of the hydraulic system, and hydraulic circuit design inappropriate to the components selected. The reel test unit developed demonstrated two different types of hydraulic systems that do not cause whip. Either of the two systems will provide shuttle car reel operation (1) that is essentially whipfree and (2) with maximum cable forces much lower than those common with existing systems.
Publication Date
19720101
Document Type
CP; Final Contract Report;
Fiscal Year
1972
NTIS Accession No.
PB-235639
NTIS Price
A07
Identifying No.
OFR 42(1)-74
NIOSH Division
PRC;
Source Name
NTIS: PB/235-639; Available for Reference At Bureau Libraries
Performing Organization
FMC Corporation
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