JPH0352716U - - Google Patents

Info

Publication number
JPH0352716U
JPH0352716U JP1989114263U JP11426389U JPH0352716U JP H0352716 U JPH0352716 U JP H0352716U JP 1989114263 U JP1989114263 U JP 1989114263U JP 11426389 U JP11426389 U JP 11426389U JP H0352716 U JPH0352716 U JP H0352716U
Authority
JP
Japan
Prior art keywords
rotating shaft
fixed
housing
shaft
fixed shaft
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
JP1989114263U
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 JP1989114263U priority Critical patent/JPH0352716U/ja
Publication of JPH0352716U publication Critical patent/JPH0352716U/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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings
    • F16C25/04—Sliding-contact bearings self-adjusting
    • F16C25/045—Sliding-contact bearings self-adjusting with magnetic means to preload the bearing
    • 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
    • F16C17/107—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 surface for radial load and at least one surface for axial load
    • 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
    • F16C32/0603—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 gas cushion, e.g. an air cushion
    • F16C32/0614—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 gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0622—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 gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
    • 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
    • F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
    • F16C32/067—Details of hydrostatic bearings independent of fluid supply or direction of load of bearings adjustable for aligning, positioning, wear or play
    • F16C32/0674—Details of hydrostatic bearings independent of fluid supply or direction of load of bearings adjustable for aligning, positioning, wear or play by means of pre-load on the fluid 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
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load

Landscapes

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

Description

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

第１図は本考案の第１実施例の静圧流体軸受を
採用した光偏向器の断面図。第２図は第２実施例
の動圧流体軸受を採用した光偏向器の断面図。第
３図は第２図のスラスト溝の平面図。第４図は従
来例の静圧流体軸受を採用した光偏向器の断面図
。 １……固定軸、２……回転軸、３……上フレー
ム、４……側面フレーム、５……下フレーム、６
……ミラ、２１，２２……磁石、３１，３２……
ラジアル溝、３３……スラスト溝、ａ……スラス
ト用ノズル、ｂ……ラジアル用ノズル、ｃ……コ
ネクタ、ｄ……中空穴、ｅ，ｆ……排出孔、ｋ…
…筐体。 FIG. 1 is a sectional view of an optical deflector employing a hydrostatic fluid bearing according to a first embodiment of the present invention. FIG. 2 is a sectional view of an optical deflector employing a hydrodynamic bearing according to a second embodiment. FIG. 3 is a plan view of the thrust groove shown in FIG. 2. FIG. 4 is a cross-sectional view of an optical deflector employing a conventional hydrostatic fluid bearing. 1...Fixed axis, 2...Rotating axis, 3...Upper frame, 4...Side frame, 5...Lower frame, 6
...Mira, 21, 22...Magnet, 31, 32...
Radial groove, 33... Thrust groove, a... Thrust nozzle, b... Radial nozzle, c... Connector, d... Hollow hole, e, f... Discharge hole, k...
...Housing.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筐体に固定された固定軸と、前記固定軸に外嵌
し、流体の静圧又は動圧により固定軸に回転自在
に支承された回転軸とこの回転軸に搭載したミラ
とを筐体内に収納してなる光偏向器において、前
記回転軸の上端とこれに対向する筐体面とに相反
発する極性の磁石を設けたことを特徴とする流体
軸受型光偏向器。 A fixed shaft fixed to a housing, a rotating shaft fitted externally on the fixed shaft and rotatably supported on the fixed shaft by static pressure or dynamic pressure of a fluid, and a mirror mounted on this rotating shaft are installed inside the housing. What is claimed is: 1. A hydrodynamic bearing type optical deflector, characterized in that magnets with opposite polarities are provided at the upper end of the rotating shaft and the surface of the casing facing thereto.
JP1989114263U 1989-09-29 1989-09-29 Pending JPH0352716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989114263U JPH0352716U (en) 1989-09-29 1989-09-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989114263U JPH0352716U (en) 1989-09-29 1989-09-29

Publications (1)

Publication Number Publication Date
JPH0352716U true JPH0352716U (en) 1991-05-22

Family

ID=31662641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989114263U Pending JPH0352716U (en) 1989-09-29 1989-09-29

Country Status (1)

Country Link
JP (1) JPH0352716U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259224A (en) * 1985-05-13 1986-11-17 Copal Electron Co Ltd Fluid bearing for optical deflector
JPS61294409A (en) * 1985-06-21 1986-12-25 Copal Electron Co Ltd Bearing for optical deflector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259224A (en) * 1985-05-13 1986-11-17 Copal Electron Co Ltd Fluid bearing for optical deflector
JPS61294409A (en) * 1985-06-21 1986-12-25 Copal Electron Co Ltd Bearing for optical deflector

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