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JPS5652623A - Composite bearing utilizing magnetic force and dynamic pressure in combination - Google Patents

Composite bearing utilizing magnetic force and dynamic pressure in combination

Info

Publication number
JPS5652623A
JPS5652623A JP12888179A JP12888179A JPS5652623A JP S5652623 A JPS5652623 A JP S5652623A JP 12888179 A JP12888179 A JP 12888179A JP 12888179 A JP12888179 A JP 12888179A JP S5652623 A JPS5652623 A JP S5652623A
Authority
JP
Japan
Prior art keywords
shaft
permanent magnet
side permanent
magnet member
dynamic pressure
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
JP12888179A
Other languages
Japanese (ja)
Inventor
Kyosaburo Furumura
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.)
NSK Ltd
Original Assignee
NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP12888179A priority Critical patent/JPS5652623A/en
Publication of JPS5652623A publication Critical patent/JPS5652623A/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
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/105—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one bearing surface providing angular contact, e.g. conical or spherical bearing surfaces
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell 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
    • F16C33/1005—Construction relative to lubrication with gas, e.g. air, as lubricant
    • F16C33/101—Details of the bearing surface, e.g. means to generate pressure such as lobes or wedges
    • F16C33/1015—Pressure generating grooves
    • 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
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

PURPOSE: To reduce the staring torque of the bearing, by forming dynamic pressure generating grooves in the surface of a shaft-side permanent magnet facing a housing- side permanent magnet member.
CONSTITUTION: The grooves 10 are formed on opposite sides of the section 6 of the shaft-side permanent magnet member 2 facing the housing-side permanent magnet member 4. When a shaft 1 is turned, air on the outside of a bearing gap 3 is introduced into the gap 3 by the pumping function of the grooves 10, so that the shaft- side permanent magnet 2 is supported in a suspended manner. Here, since the shaft- side permanent magnet member 2 and the housing-side permanent magnet member 4 function also as a magnetic bearing, the torque required for starting rotation of the shaft 1 can be reduced and the sliding friction caused during rotation of the shaft 1 can be also minimized.
COPYRIGHT: (C)1981,JPO&Japio
JP12888179A 1979-10-08 1979-10-08 Composite bearing utilizing magnetic force and dynamic pressure in combination Pending JPS5652623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12888179A JPS5652623A (en) 1979-10-08 1979-10-08 Composite bearing utilizing magnetic force and dynamic pressure in combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12888179A JPS5652623A (en) 1979-10-08 1979-10-08 Composite bearing utilizing magnetic force and dynamic pressure in combination

Publications (1)

Publication Number Publication Date
JPS5652623A true JPS5652623A (en) 1981-05-11

Family

ID=14995655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12888179A Pending JPS5652623A (en) 1979-10-08 1979-10-08 Composite bearing utilizing magnetic force and dynamic pressure in combination

Country Status (1)

Country Link
JP (1) JPS5652623A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144221U (en) * 1983-03-18 1984-09-27 日産自動車株式会社 magnetic bearing
KR20020042786A (en) * 2002-05-11 2002-06-07 황철홍 Centrifuge type dynamic air bearing utilizing a magnetic levitation
KR100513708B1 (en) * 1997-10-29 2005-12-21 삼성전기주식회사 Hydrodynamic air bearing structure for supporting a rotating body
CN108612754A (en) * 2018-07-13 2018-10-02 燕山大学 A kind of passive-type magnetic liquid dual suspension Disjunction type cone bearing
CN108953377A (en) * 2018-08-22 2018-12-07 合肥工业大学 A kind of liquid magnetic composite bearing towards reusable rocket turbine pump
CN109826866A (en) * 2019-01-21 2019-05-31 南京航空航天大学 A two-way helical groove protection bearing structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144221U (en) * 1983-03-18 1984-09-27 日産自動車株式会社 magnetic bearing
KR100513708B1 (en) * 1997-10-29 2005-12-21 삼성전기주식회사 Hydrodynamic air bearing structure for supporting a rotating body
KR20020042786A (en) * 2002-05-11 2002-06-07 황철홍 Centrifuge type dynamic air bearing utilizing a magnetic levitation
CN108612754A (en) * 2018-07-13 2018-10-02 燕山大学 A kind of passive-type magnetic liquid dual suspension Disjunction type cone bearing
CN108953377A (en) * 2018-08-22 2018-12-07 合肥工业大学 A kind of liquid magnetic composite bearing towards reusable rocket turbine pump
CN109826866A (en) * 2019-01-21 2019-05-31 南京航空航天大学 A two-way helical groove protection bearing structure

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