JPS5597521A - Fluid rotary device - Google Patents

Fluid rotary device

Info

Publication number
JPS5597521A
JPS5597521A JP370179A JP370179A JPS5597521A JP S5597521 A JPS5597521 A JP S5597521A JP 370179 A JP370179 A JP 370179A JP 370179 A JP370179 A JP 370179A JP S5597521 A JPS5597521 A JP S5597521A
Authority
JP
Japan
Prior art keywords
bearing
face
thrust
spiral group
minute
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.)
Granted
Application number
JP370179A
Other languages
Japanese (ja)
Other versions
JPS5821128B2 (en
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 JP54003701A priority Critical patent/JPS5821128B2/en
Priority to US06/109,491 priority patent/US4332428A/en
Priority to GB8000501A priority patent/GB2043182B/en
Priority to FR8000568A priority patent/FR2446953A1/en
Priority to CA343,739A priority patent/CA1132170A/en
Priority to DE3001432A priority patent/DE3001432C2/en
Publication of JPS5597521A publication Critical patent/JPS5597521A/en
Publication of JPS5821128B2 publication Critical patent/JPS5821128B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE: To prevent a bearing's tip from wearing without spoiling the positional accuracy in the thrust direction by forming a spiral group of minute size at the pivot bearing's foremost part and thereby letting the rotary part float in a minute distance pneumatically.
CONSTITUTION: In the central part of the flange's upper part 8 of a thrust bearing 9, a projection 10 with minute diameter is provided, in the surface of which a groove of spiral group is formed. When the upper end face 4 is rotated relatively to the thrust bearing 9, the fluid flows into the central part of this projection 10, where a pressure is generated by wedging effect and the pumping action of this spiral group. The upper end face 4 becomes afloat thereby in the direction of arrow B, and the floating height is determined by the position where the own weight of this upper end face balances with the above-mentioned pressure, so that the positional accuracy in the thrust direction is not spoiled and the bearing's foremost part can be prevented from wearing.
COPYRIGHT: (C)1980,JPO&Japio
JP54003701A 1979-01-16 1979-01-16 fluid rotation device Expired JPS5821128B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP54003701A JPS5821128B2 (en) 1979-01-16 1979-01-16 fluid rotation device
US06/109,491 US4332428A (en) 1979-01-16 1980-01-04 Rotary mechanism with axial bearings
GB8000501A GB2043182B (en) 1979-01-16 1980-01-08 Bearing assemblies
FR8000568A FR2446953A1 (en) 1979-01-16 1980-01-11 ROTATING MECHANISM PROVIDED WITH AXIAL LOADED BEARINGS
CA343,739A CA1132170A (en) 1979-01-16 1980-01-15 Rotary mechanism with axial bearings
DE3001432A DE3001432C2 (en) 1979-01-16 1980-01-16 Rotary mechanism with a fluid-lubricated axial bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54003701A JPS5821128B2 (en) 1979-01-16 1979-01-16 fluid rotation device

Publications (2)

Publication Number Publication Date
JPS5597521A true JPS5597521A (en) 1980-07-24
JPS5821128B2 JPS5821128B2 (en) 1983-04-27

Family

ID=11564666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54003701A Expired JPS5821128B2 (en) 1979-01-16 1979-01-16 fluid rotation device

Country Status (1)

Country Link
JP (1) JPS5821128B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137668A (en) * 1982-02-10 1983-08-16 Nippon Seiko Kk Magnetic fluid sealing unit
JPS58182127A (en) * 1982-04-16 1983-10-25 Canon Inc Rotary head device
JPS5974517U (en) * 1982-11-09 1984-05-21 松下電器産業株式会社 Rotating head cylinder device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137668A (en) * 1982-02-10 1983-08-16 Nippon Seiko Kk Magnetic fluid sealing unit
JPH025953B2 (en) * 1982-02-10 1990-02-06 Nippon Seiko Kk
JPS58182127A (en) * 1982-04-16 1983-10-25 Canon Inc Rotary head device
JPH0239013B2 (en) * 1982-04-16 1990-09-03 Canon Kk
JPS5974517U (en) * 1982-11-09 1984-05-21 松下電器産業株式会社 Rotating head cylinder device

Also Published As

Publication number Publication date
JPS5821128B2 (en) 1983-04-27

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