MAIN SHAFT APPARATUS

Title:

MAIN SHAFT APPARATUS

Document Type and Number:

WIPO Patent Application WO/2013/011815

Kind Code:

A1

Abstract:

A main shaft apparatus (10) of a built-in motor system, wherein a rotary shaft (12) is provided with: a first cylindrical component (71) made of metal material; and a second cylindrical component (72) made of carbon fibre composite material, which is positioned on the outer peripheral surface of the first cylindrical component (71) and into the outer peripheral surface of which a rotor (20) fits. By virtue of this, the temperature increase of the rotary shaft and a bearing due to the heat produced by the rotor can be controlled and processing precision can be improved.

Inventors:

YONEYAMA HIROKI
IWASAKI OSAMU
OGURI SHOICHIRO
INAGAKI YOSHIFUMI
KATSUNO YOSHIAKI

Application Number:

PCT/JP2012/066482

Publication Date:

January 24, 2013

Filing Date:

June 28, 2012

Export Citation:

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Assignee:

NSK LTD (JP)
YONEYAMA HIROKI
IWASAKI OSAMU
OGURI SHOICHIRO
INAGAKI YOSHIFUMI
KATSUNO YOSHIAKI

International Classes:

B23B19/02

Foreign References:

JPH07314203A	1995-12-05
JPH06226506A	1994-08-16
JPH0751903A	1995-02-28
JPH02167602A	1990-06-28
JPS59161202A	1984-09-12
JPS642565U	1989-01-09
JP2011205884A	2011-10-13
JP2003266205A	2003-09-24
JPH02167602A	1990-06-28
JPH0751903A	1995-02-28
JPH06226506A	1994-08-16
JPH06218608A	1994-08-09
JPH06226516A	1994-08-16
JP2756155B2	1998-05-25
JP2006088245A	2006-04-06
JPH01295025A	1989-11-28

Other References: