MOTOR-BEARING ASSEMBLY STRUCTURE

PROBLEM TO BE SOLVED: To improve degree of precision, reduce the number of processes of processing bearing-related parts, and attain simplicity and cost reduction by forming a position-determining means for both bearing plates at both formed openings. SOLUTION: A reference surface X serving as a pos...

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Bibliographic Details
Main Authors FUJIKURA ISAMU, SATO TOSHIYUKI, SUGANO HIROYUKI
Format Patent
LanguageEnglish
Published 04.12.1998
Edition6
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To improve degree of precision, reduce the number of processes of processing bearing-related parts, and attain simplicity and cost reduction by forming a position-determining means for both bearing plates at both formed openings. SOLUTION: A reference surface X serving as a position-determining means is into an arcuate surface having an identical radius from the center line, instead of being simply a flat surface. In manufacturing of a mold-type stator body 20, the inner periphery reference surface of a stator 21 and the reference surface X can be processed in the same manner, and punching-type bearing plates 30, 40 can be manufactured easily, thereby attaining cost reduction and high accuracy. By forming the reference surface X serving as the position determining means as part of the inside surface of a hole for passing four fixing screws through the stator body 20 in the axial direction, the structure of the mold-type stator body 20 is reinforced and easy manufacture is attained, so that it is possible to further improve accuracy as the position-determining means.
Bibliography:Application Number: JP19970126558