JPH0281924U - - Google Patents

Info

Publication number
JPH0281924U
JPH0281924U JP1988161592U JP16159288U JPH0281924U JP H0281924 U JPH0281924 U JP H0281924U JP 1988161592 U JP1988161592 U JP 1988161592U JP 16159288 U JP16159288 U JP 16159288U JP H0281924 U JPH0281924 U JP H0281924U
Authority
JP
Japan
Prior art keywords
shaft
sleeve
side magnet
end surface
fluid
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
JP1988161592U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1988161592U priority Critical patent/JPH0281924U/ja
Publication of JPH0281924U publication Critical patent/JPH0281924U/ja
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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0427—Passive magnetic bearings with permanent magnets on both parts repelling each other for axial load mainly
    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means

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)
  • Sliding-Contact Bearings (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の動圧流体軸受の一実施例の
軸に沿つた断面図、第２図は変形例の図、第３図
は従来の動圧流体軸受の軸に沿つた断面図である
。 １……軸、１ｂ……端面、３……軸側磁石、４
，２２……スリーブ、４ｃ……内端面、５……ス
リーブ側磁石、７……空気、Ｕ……基本磁石。 Fig. 1 is a cross-sectional view along the axis of one embodiment of the hydrodynamic bearing of this invention, Fig. 2 is a view of a modified example, and Fig. 3 is a cross-sectional view along the axis of a conventional hydrodynamic bearing. be. 1... shaft, 1b... end face, 3... shaft side magnet, 4
, 22... Sleeve, 4c... Inner end surface, 5... Sleeve side magnet, 7... Air, U... Basic magnet.

Claims (1)

【実用新案登録請求の範囲】 互いに嵌合される軸とスリーブの間に流体を満
たし、ラジアル荷重を上記軸とスリーブの相対回
転で上記流体に発生する動圧で支える一方、上記
軸と上記スリーブの間に作用するスラスト荷重を
上記軸の端面に固定した軸側磁石と上記スリーブ
の端面に固定したスリーブ側磁石との間に作用す
る反発力により支えるようにした動圧流体軸受で
あつて、 上記軸側磁石または上記スリーブ側磁石の少な
くとも一方は同一径かつ同一厚さの磁石を積層す
ることにより構成されている動圧流体軸受。[Claims for Utility Model Registration] A fluid is filled between the shaft and the sleeve that are fitted together, and the radial load is supported by the dynamic pressure generated in the fluid due to the relative rotation of the shaft and the sleeve. The hydrodynamic bearing is configured to support a thrust load acting between the shaft and the shaft by a repulsive force acting between a shaft-side magnet fixed to the end surface of the shaft and a sleeve-side magnet fixed to the end surface of the sleeve, At least one of the shaft-side magnet and the sleeve-side magnet is configured by stacking magnets having the same diameter and the same thickness.
JP1988161592U 1988-12-13 1988-12-13 Pending JPH0281924U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988161592U JPH0281924U (en) 1988-12-13 1988-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988161592U JPH0281924U (en) 1988-12-13 1988-12-13

Publications (1)

Publication Number Publication Date
JPH0281924U true JPH0281924U (en) 1990-06-25

Family

ID=31444668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988161592U Pending JPH0281924U (en) 1988-12-13 1988-12-13

Country Status (1)

Country Link
JP (1) JPH0281924U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294218A (en) * 1985-06-24 1986-12-25 Canon Inc Fluid bearing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294218A (en) * 1985-06-24 1986-12-25 Canon Inc Fluid bearing device

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