JPS55123019A - Rotary device - Google Patents

Rotary device

Info

Publication number
JPS55123019A
JPS55123019A JP2809579A JP2809579A JPS55123019A JP S55123019 A JPS55123019 A JP S55123019A JP 2809579 A JP2809579 A JP 2809579A JP 2809579 A JP2809579 A JP 2809579A JP S55123019 A JPS55123019 A JP S55123019A
Authority
JP
Japan
Prior art keywords
pivot bearing
housing
shaft
fluid
bearing
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.)
Pending
Application number
JP2809579A
Other languages
Japanese (ja)
Inventor
Teruo Maruyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2809579A priority Critical patent/JPS55123019A/en
Publication of JPS55123019A publication Critical patent/JPS55123019A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/0633—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap
    • F16C32/0637—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap by a magnetic field, e.g. ferrofluid bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • F16C33/1035—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing by a magnetic field acting on a magnetic liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

PURPOSE: To improve the lubricating condition on a pivot bearing in a rotary device which is supported by the pivot bearing in the direction of the thrust, by using a magnetic fluid as a lubricant and placing a magnet to cause magnetism concentration on the contact part of the pivot bearing.
CONSTITUTION: A rotary shaft 6, which is provided with a pivot bearing 7 at the bottom of the shaft and with a flywheel 8 at its top, is rotatably supported in a housing 9. A column-shaped permanent magnet 13 magnetized in the axial direction of the shaft, is housed in the center of a bottom lid 11 attached to the housing 9 and faces the pivot bearing 7. A magnetic lubricating fluid 14 is enclosed in a radial fluid bearing section 10 defined between the rotary shaft 6 and the housing 9 and enclosed around the pivot bearing 7. According to this constitution, magnetism concentration takes place on the tip of the pivot bearing 7 and the magnetic fluid 14 is attracted and caught on the tip of the pivot bearing. This results in improving the lubricating condition on the contact part of the pivot bearing 7.
COPYRIGHT: (C)1980,JPO&Japio
JP2809579A 1979-03-09 1979-03-09 Rotary device Pending JPS55123019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2809579A JPS55123019A (en) 1979-03-09 1979-03-09 Rotary device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2809579A JPS55123019A (en) 1979-03-09 1979-03-09 Rotary device

Publications (1)

Publication Number Publication Date
JPS55123019A true JPS55123019A (en) 1980-09-22

Family

ID=12239221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2809579A Pending JPS55123019A (en) 1979-03-09 1979-03-09 Rotary device

Country Status (1)

Country Link
JP (1) JPS55123019A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01320313A (en) * 1988-06-23 1989-12-26 Nippon Ferrofluidics Kk Dynamic pressure fluid bearing and vacuum pump with dynamic pressure fluid bearing
US7015612B2 (en) * 2003-12-24 2006-03-21 Matsushita Electric Industrial Co., Ltd. Brushless motor including thrust bearing
US7420304B2 (en) 2005-10-17 2008-09-02 Nidec Corporation Bearing unit and electric motor furnished therewith
US7498704B2 (en) 2006-02-02 2009-03-03 Nidec Corporation Motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01320313A (en) * 1988-06-23 1989-12-26 Nippon Ferrofluidics Kk Dynamic pressure fluid bearing and vacuum pump with dynamic pressure fluid bearing
US7015612B2 (en) * 2003-12-24 2006-03-21 Matsushita Electric Industrial Co., Ltd. Brushless motor including thrust bearing
US7420304B2 (en) 2005-10-17 2008-09-02 Nidec Corporation Bearing unit and electric motor furnished therewith
US7498704B2 (en) 2006-02-02 2009-03-03 Nidec Corporation Motor

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