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Title: Pipe weld crown removal device

Abstract

This invention is comprised of a device that provides for grinding down the crown of a pipe weld joining aligned pipe sections so that the weld is substantially flush with the pipe sections joined by the weld. The device includes a cage assembly comprising a pair of spaced cage rings adapted to be mounted for rotation on the respective pipe sections on opposite sides of the weld, a plurality of grinding wheels, supported by the cage assembly for grinding down the crown of the weld, and a plurality of support shafts, each extending longitudinally along the joined pipe sections, parallel thereto, for individually mounting respective grinding wheels. Each end of the support shafts is mounted for rotation in a bearing assembly housed within a radially directed opening in a corresponding one of the cage rings so as to provide radial movement of the associated shaft, and thus of the associated grinding wheel, towards and away from the weld. A first drive sprocket provides rotation of the cage assembly around the pipe sections while a second drive unit, driven by a common motor, provides rotation of the grinding wheels.

Inventors:
;
Publication Date:
Research Org.:
Westinghouse Electric Corp., West Mifflin, PA (United States)
Sponsoring Org.:
Department of Defense, Washington, DC (United States)
OSTI Identifier:
140169
Patent Number(s):
PATENTS-US-A7765278
Application Number:
ON: DE94003051; PAN: 7-765,278
Assignee:
Dept. of Energy
DOE Contract Number:  
AC11-89PN38014
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 1991
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 36 MATERIALS SCIENCE; WELDED JOINTS; GRINDING; PIPES; WELDING; INVENTIONS; DESIGN; ALIGNMENT; POSITIONING

Citation Formats

Sword, C K, and Sette, P J. Pipe weld crown removal device. United States: N. p., 1991. Web.
Sword, C K, & Sette, P J. Pipe weld crown removal device. United States.
Sword, C K, and Sette, P J. Tue . "Pipe weld crown removal device". United States. https://www.osti.gov/servlets/purl/140169.
@article{osti_140169,
title = {Pipe weld crown removal device},
author = {Sword, C K and Sette, P J},
abstractNote = {This invention is comprised of a device that provides for grinding down the crown of a pipe weld joining aligned pipe sections so that the weld is substantially flush with the pipe sections joined by the weld. The device includes a cage assembly comprising a pair of spaced cage rings adapted to be mounted for rotation on the respective pipe sections on opposite sides of the weld, a plurality of grinding wheels, supported by the cage assembly for grinding down the crown of the weld, and a plurality of support shafts, each extending longitudinally along the joined pipe sections, parallel thereto, for individually mounting respective grinding wheels. Each end of the support shafts is mounted for rotation in a bearing assembly housed within a radially directed opening in a corresponding one of the cage rings so as to provide radial movement of the associated shaft, and thus of the associated grinding wheel, towards and away from the weld. A first drive sprocket provides rotation of the cage assembly around the pipe sections while a second drive unit, driven by a common motor, provides rotation of the grinding wheels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {12}
}

Patent Application:

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