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Title: Test Plan for Rotary Mode Core Sample Truck Grapple Hoist Level Wind System

Abstract

A Grapple Hoist Assembly is currently used on the Rotary Mode Core Sampling Trucks (RMCSTs) to actuate the sampler and retrieve the pintle rod during sampling operations. The hoist assembly includes a driven drum approximately two inches wide and six inches in diameter that rotates to pay out or reel in the 5/32-in. cable. The current Grapple Hoist Assembly, detailed on drawing H-2-690057, is prone to ''bird nesting'' the cable on the drum. ''Bird nesting'' is a condition in which the cable does not wind onto the drum in a uniformly layered manner, but winds in a random fashion where the cable essentially ''piles up'' inappropriately on the drum and, on some occasions, winds on the drum drive shaft. A system to help control this ''bird nesting'' problem has been designed as an addition to the existing components of the Grapple Hoist Assembly. The new design consists of a mechanism that is timed with, and driven by, the shaft that drives the drum. This mechanism traverses back and forth across the width of the drum to lay the cable on the drum in a uniformly layered manner. This test plan establishes the acceptance criteria, test procedure and test conditions. Itmore » also describes the test apparatus necessary to verify the adequacy of the level wind system design. The test is defined as qualification testing (LMHC 1999b) and as such will be performed at conditions beyond the parameters that the Grapple Hoist Assembly is allowed to operate by the Safety Equipment List.« less

Authors:
Publication Date:
Research Org.:
LMHC (US)
Sponsoring Org.:
ENVIRONMENTAL MANAGEMENT (US)
OSTI Identifier:
797723
Report Number(s):
HNF-4740, Rev.0
TRN: US0204920
DOE Contract Number:  
AC06-96RL13200
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CABLES; DESIGN; SAMPLERS; SAMPLING; PERFORMANCE TESTING; HOISTS; STORAGE FACILITIES; RADIOACTIVE WASTE STORAGE

Citation Formats

BOGER, R.M. Test Plan for Rotary Mode Core Sample Truck Grapple Hoist Level Wind System. United States: N. p., 1999. Web. doi:10.2172/797723.
BOGER, R.M. Test Plan for Rotary Mode Core Sample Truck Grapple Hoist Level Wind System. United States. doi:10.2172/797723.
BOGER, R.M. Wed . "Test Plan for Rotary Mode Core Sample Truck Grapple Hoist Level Wind System". United States. doi:10.2172/797723. https://www.osti.gov/servlets/purl/797723.
@article{osti_797723,
title = {Test Plan for Rotary Mode Core Sample Truck Grapple Hoist Level Wind System},
author = {BOGER, R.M.},
abstractNote = {A Grapple Hoist Assembly is currently used on the Rotary Mode Core Sampling Trucks (RMCSTs) to actuate the sampler and retrieve the pintle rod during sampling operations. The hoist assembly includes a driven drum approximately two inches wide and six inches in diameter that rotates to pay out or reel in the 5/32-in. cable. The current Grapple Hoist Assembly, detailed on drawing H-2-690057, is prone to ''bird nesting'' the cable on the drum. ''Bird nesting'' is a condition in which the cable does not wind onto the drum in a uniformly layered manner, but winds in a random fashion where the cable essentially ''piles up'' inappropriately on the drum and, on some occasions, winds on the drum drive shaft. A system to help control this ''bird nesting'' problem has been designed as an addition to the existing components of the Grapple Hoist Assembly. The new design consists of a mechanism that is timed with, and driven by, the shaft that drives the drum. This mechanism traverses back and forth across the width of the drum to lay the cable on the drum in a uniformly layered manner. This test plan establishes the acceptance criteria, test procedure and test conditions. It also describes the test apparatus necessary to verify the adequacy of the level wind system design. The test is defined as qualification testing (LMHC 1999b) and as such will be performed at conditions beyond the parameters that the Grapple Hoist Assembly is allowed to operate by the Safety Equipment List.},
doi = {10.2172/797723},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}