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Title: Method and apparatus for assembling permanent magnet rotors

Abstract

A permanent magnet assembly (22) for assembly in large permanent magnet (PM) motors and generators includes a two-piece carrier (23, 24) that can be slid into a slot (13) in the rotor (10) and then secured in place using a set screw (37). The invention also provides an auxiliary carrier device (50) with guide rails (51) that line up with the teeth (12) of the rotor, so that a permanent magnet assembly (22) can be pushed first into a slot (13), and then down the slot (13) to its proper location. An auxiliary tool (50) is provided to move the permanent magnet assembly (22) into position in the slot (13) before it is secured in place. Methods of assembling and disassembling the magnet assemblies (22) in the rotor (10) are also disclosed.

Inventors:
 [1];  [2]
  1. Oak Ridge, TN
  2. Knoxville, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
872345
Patent Number(s):
5914552
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; assembling; permanent; magnet; rotors; assembly; 22; motors; generators; two-piece; carrier; 23; 24; slid; slot; 13; rotor; 10; secured; set; screw; 37; provides; auxiliary; device; 50; guide; rails; 51; line; teeth; 12; pushed; proper; location; tool; provided; move; position; methods; disassembling; assemblies; disclosed; permanent magnet; magnet assembly; set screw; guide rails; /310/

Citation Formats

Hsu, John S, and Adams, Donald J. Method and apparatus for assembling permanent magnet rotors. United States: N. p., 1999. Web.
Hsu, John S, & Adams, Donald J. Method and apparatus for assembling permanent magnet rotors. United States.
Hsu, John S, and Adams, Donald J. Fri . "Method and apparatus for assembling permanent magnet rotors". United States. https://www.osti.gov/servlets/purl/872345.
@article{osti_872345,
title = {Method and apparatus for assembling permanent magnet rotors},
author = {Hsu, John S and Adams, Donald J},
abstractNote = {A permanent magnet assembly (22) for assembly in large permanent magnet (PM) motors and generators includes a two-piece carrier (23, 24) that can be slid into a slot (13) in the rotor (10) and then secured in place using a set screw (37). The invention also provides an auxiliary carrier device (50) with guide rails (51) that line up with the teeth (12) of the rotor, so that a permanent magnet assembly (22) can be pushed first into a slot (13), and then down the slot (13) to its proper location. An auxiliary tool (50) is provided to move the permanent magnet assembly (22) into position in the slot (13) before it is secured in place. Methods of assembling and disassembling the magnet assemblies (22) in the rotor (10) are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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