JPS5530528A - Bearing device - Google Patents

Bearing device

Info

Publication number
JPS5530528A
JPS5530528A JP10251278A JP10251278A JPS5530528A JP S5530528 A JPS5530528 A JP S5530528A JP 10251278 A JP10251278 A JP 10251278A JP 10251278 A JP10251278 A JP 10251278A JP S5530528 A JPS5530528 A JP S5530528A
Authority
JP
Japan
Prior art keywords
oil film
fluid
bearing
magnetic
film part
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
JP10251278A
Other languages
Japanese (ja)
Inventor
Teruo Maruyama
Takashi Ichiyanagi
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 JP10251278A priority Critical patent/JPS5530528A/en
Publication of JPS5530528A publication Critical patent/JPS5530528A/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
    • 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
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
    • F16C33/746—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by a magnetic field
    • 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
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

PURPOSE: To prevent a leak of lubricating fluid, by means of providing a magnet for magnetic stal near the fluid bearing oil film portion.
CONSTITUTION: The portion of a fluid bearing 20 comprises a thrust bearing top part 44, its bottom part 45, a radial bearing top oil film part 46, bottom oil film part 47, thrust bearing top oil film part 48, bottom oil film part 49, and a magnetic lubricating fluid 83 is sealed by the bearing oil film parts 46, 47, 48, 49, and seized near both poles of a permanent magnet 40. In this way, between a fixed axis 79 and a rotary sleeve 74, that turns around the former, is constructed the fluid bearing 20 by the magnetic fluid 83, with the permanent magnet 40, provided in the interior of the fluid bearing 20, becoming a magnetic seal method, thus a leak of the lubricating fluid 83 is prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP10251278A 1978-08-22 1978-08-22 Bearing device Pending JPS5530528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10251278A JPS5530528A (en) 1978-08-22 1978-08-22 Bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10251278A JPS5530528A (en) 1978-08-22 1978-08-22 Bearing device

Publications (1)

Publication Number Publication Date
JPS5530528A true JPS5530528A (en) 1980-03-04

Family

ID=14329423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10251278A Pending JPS5530528A (en) 1978-08-22 1978-08-22 Bearing device

Country Status (1)

Country Link
JP (1) JPS5530528A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104944A (en) * 1981-12-17 1983-06-22 Sumitomo Deyurezu Kk Self-curing phenolic resin and its preparation
JPS60157513A (en) * 1984-01-26 1985-08-17 Inoue Japax Res Inc Hydraulic bearing device
JPS60172776A (en) * 1984-02-17 1985-09-06 Nippon Fueroo Furuideikusu Kk Seal device for rotary shaft, utilizing magnetic fluid
JPS60220218A (en) * 1984-04-12 1985-11-02 Matsushita Electric Ind Co Ltd Liquid bearing device
JPS63149411A (en) * 1986-12-10 1988-06-22 Nippon Seiko Kk Static pressure bearing device using magnetic fluid
JPH01120417A (en) * 1987-11-05 1989-05-12 Nippon Ferrofluidics Kk Bearing structure
JPH02145320U (en) * 1989-05-12 1990-12-10
JPH0518496Y2 (en) * 1987-10-30 1993-05-17
JPH0681840A (en) * 1992-04-10 1994-03-22 Internatl Business Mach Corp <Ibm> Magnetic fluid bearing seal assembly
CN105465374A (en) * 2016-01-28 2016-04-06 自贡兆强环保科技股份有限公司 Oil mist sealing structure of hydraulic generator
CN109027249A (en) * 2018-08-13 2018-12-18 广西科技大学 A kind of magnetic fluid sealing structure with dentation magnetic source

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138246A (en) * 1974-03-29 1975-11-04
JPS51148139A (en) * 1975-06-06 1976-12-20 Ampex Bearing structural body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138246A (en) * 1974-03-29 1975-11-04
JPS51148139A (en) * 1975-06-06 1976-12-20 Ampex Bearing structural body

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6358168B2 (en) * 1981-12-17 1988-11-15 Sumitomo Durez Co
JPS58104944A (en) * 1981-12-17 1983-06-22 Sumitomo Deyurezu Kk Self-curing phenolic resin and its preparation
JPS60157513A (en) * 1984-01-26 1985-08-17 Inoue Japax Res Inc Hydraulic bearing device
JPS60172776A (en) * 1984-02-17 1985-09-06 Nippon Fueroo Furuideikusu Kk Seal device for rotary shaft, utilizing magnetic fluid
JPH0520605B2 (en) * 1984-04-12 1993-03-22 Matsushita Electric Ind Co Ltd
JPS60220218A (en) * 1984-04-12 1985-11-02 Matsushita Electric Ind Co Ltd Liquid bearing device
JPS63149411A (en) * 1986-12-10 1988-06-22 Nippon Seiko Kk Static pressure bearing device using magnetic fluid
JPH0518496Y2 (en) * 1987-10-30 1993-05-17
JPH01120417A (en) * 1987-11-05 1989-05-12 Nippon Ferrofluidics Kk Bearing structure
JPH02145320U (en) * 1989-05-12 1990-12-10
JPH0681840A (en) * 1992-04-10 1994-03-22 Internatl Business Mach Corp <Ibm> Magnetic fluid bearing seal assembly
CN105465374A (en) * 2016-01-28 2016-04-06 自贡兆强环保科技股份有限公司 Oil mist sealing structure of hydraulic generator
CN109027249A (en) * 2018-08-13 2018-12-18 广西科技大学 A kind of magnetic fluid sealing structure with dentation magnetic source
CN109027249B (en) * 2018-08-13 2020-05-05 广西科技大学 Magnetic fluid sealing structure with tooth-shaped magnetic source

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