Title:
ROTATING ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/177836
Kind Code:
A1
Abstract:
This rotating electrical machine is provided with one end having a first shaft diameter and another end having a second shaft diameter greater than the first shaft size, a rotor being formed using a shaft (21) to one end of which a key groove (34) is provided, wherein the key groove (34) has: a shallow groove (341) as a key fitting groove of a first depth in which a key is fitted; and a deep groove (342) as a balance adjustment groove formed in a manner so as to have a second depth deeper than the first depth and resulting from a partial region of the bottom surface of the shallow groove (341) being dug deeper. Balance adjustment has already been implemented at the shaft (21) alone, so in addition to being able to reduce the man-hours involved in balance correction of the entire rotor, it is possible to prevent the key from inadvertently moving.
Inventors:
SUGIYAMA MASANOBU (JP)
HARAKAWA MASAYA (JP)
HARAKAWA MASAYA (JP)
Application Number:
PCT/JP2014/063201
Publication Date:
November 26, 2015
Filing Date:
May 19, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K7/00
Foreign References:
| JP2013017276A | 2013-01-24 | |||
| JPH04341616A | 1992-11-27 | |||
| JPH05316684A | 1993-11-26 | |||
| JPS63161830A | 1988-07-05 | |||
| JPH0237563U | 1990-03-13 | |||
| JPS61141964U | 1986-09-02 | |||
| JP2013009549A | 2013-01-10 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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