Method and apparatus for assembling permanent magnet rotors

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872345

Hsu, John S ^[1]; Adams, Donald J ^[2]

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1. Oak Ridge, TN
2. Knoxville, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
• Patent Number(s): US 5914552
• OSTI ID: 872345
• Country of Publication: United States
• Language: English

Related Subjects

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
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