WO2003019752A1 - Mechanism for canceling mass eccentricity of rotational body, and motor having the same - Google Patents
Mechanism for canceling mass eccentricity of rotational body, and motor having the same Download PDFInfo
- Publication number
- WO2003019752A1 WO2003019752A1 PCT/JP2002/008867 JP0208867W WO03019752A1 WO 2003019752 A1 WO2003019752 A1 WO 2003019752A1 JP 0208867 W JP0208867 W JP 0208867W WO 03019752 A1 WO03019752 A1 WO 03019752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass eccentricity
- canceling
- rotational
- rotational shaft
- rings
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
Abstract
The invention relates to a mass eccentricity canceling mechanism for canceling the mass eccentricity of a rotational body including a rotation subject body such as a disk-like recording medium, capable of completely eliminating the mass eccentricity of the rotational body including a rotation subject body and quickly and smoothly changing the state of mass eccentricity to a cancel state. This mass eccentricity canceling mechanism for canceling the mass eccentricity of a rotational body (5) rotating around the axis of one rotational shaft (4) comprises a plurality of balance rings (9, 10) spaced axially of the rotational shaft (4) and fitted so that they are movable radially of the rotational shaft (4), a plurality of differential rings (11, 12) disposed inside the balance rings (9, 10) and fitted so that they are movable radially of the rotational shaft (4), and axial control members (7, 6, 8) rotating integrally with the rotational shaft (4) and axially contacting the balance rings (9, 10) and differential rings (11, 12) to impart rotation through friction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003524090A JP4167980B2 (en) | 2001-08-31 | 2002-09-02 | Rotating body eccentric gravity canceling mechanism and motor equipped with the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-264552 | 2001-08-31 | ||
JP2001264552 | 2001-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003019752A1 true WO2003019752A1 (en) | 2003-03-06 |
Family
ID=19091134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/008867 WO2003019752A1 (en) | 2001-08-31 | 2002-09-02 | Mechanism for canceling mass eccentricity of rotational body, and motor having the same |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4167980B2 (en) |
CN (1) | CN1547795A (en) |
WO (1) | WO2003019752A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014215275A1 (en) * | 2014-08-04 | 2016-02-04 | Volkswagen Aktiengesellschaft | Method for reducing or eliminating imbalances of electrical machines |
CN112963502B (en) * | 2017-03-31 | 2022-05-10 | 日本Tmt机械株式会社 | Rotating body system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10290547A (en) * | 1997-04-14 | 1998-10-27 | Sony Corp | Rotationally driving mechanism |
US6005311A (en) * | 1997-04-16 | 1999-12-21 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Spindle motor and turn table assembly having structure for canceling unbalanced centrifugal force |
US6125098A (en) * | 1997-09-26 | 2000-09-26 | Nidec Corporation | Disk drive motor |
US6155134A (en) * | 1996-12-26 | 2000-12-05 | Sony Corporation | Rotation control apparatus |
-
2002
- 2002-09-02 CN CNA028167279A patent/CN1547795A/en active Pending
- 2002-09-02 JP JP2003524090A patent/JP4167980B2/en not_active Expired - Fee Related
- 2002-09-02 WO PCT/JP2002/008867 patent/WO2003019752A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6155134A (en) * | 1996-12-26 | 2000-12-05 | Sony Corporation | Rotation control apparatus |
JPH10290547A (en) * | 1997-04-14 | 1998-10-27 | Sony Corp | Rotationally driving mechanism |
US6005311A (en) * | 1997-04-16 | 1999-12-21 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Spindle motor and turn table assembly having structure for canceling unbalanced centrifugal force |
US6125098A (en) * | 1997-09-26 | 2000-09-26 | Nidec Corporation | Disk drive motor |
Also Published As
Publication number | Publication date |
---|---|
JP4167980B2 (en) | 2008-10-22 |
JPWO2003019752A1 (en) | 2004-12-16 |
CN1547795A (en) | 2004-11-17 |
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