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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 PDF

Info

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
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2002/008867
Other languages
French (fr)
Japanese (ja)
Inventor
Fumito Komatsu
Kenji Muramatsu
Tomohiro Takeuchi
Shinichi Utsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Instruments Corp
Original Assignee
Sankyo Seiki Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Seiki Manufacturing Co Ltd filed Critical Sankyo Seiki Manufacturing Co Ltd
Priority to JP2003524090A priority Critical patent/JP4167980B2/en
Publication of WO2003019752A1 publication Critical patent/WO2003019752A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Rotational Drive Of Disk (AREA)

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.
PCT/JP2002/008867 2001-08-31 2002-09-02 Mechanism for canceling mass eccentricity of rotational body, and motor having the same Ceased WO2003019752A1 (en)

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
JP2001264552 2001-08-31
JP2001-264552 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 Ceased 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)

* Cited by examiner, † Cited by third party
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
US11686369B2 (en) 2017-03-31 2023-06-27 Tmt Machinery, Inc. Vibration damping device and bobbin holder system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10290547A (en) * 1997-04-14 1998-10-27 Sony Corp Rotary drive 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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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 Rotary drive 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
JPWO2003019752A1 (en) 2004-12-16
JP4167980B2 (en) 2008-10-22
CN1547795A (en) 2004-11-17

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