DE102009048519A8 - Hydrodynamic bearing - Google Patents

Hydrodynamic bearing Download PDF

Info

Publication number
DE102009048519A8
DE102009048519A8 DE102009048519A DE102009048519A DE102009048519A8 DE 102009048519 A8 DE102009048519 A8 DE 102009048519A8 DE 102009048519 A DE102009048519 A DE 102009048519A DE 102009048519 A DE102009048519 A DE 102009048519A DE 102009048519 A8 DE102009048519 A8 DE 102009048519A8
Authority
DE
Germany
Prior art keywords
hydrodynamic bearing
hydrodynamic
bearing
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.)
Ceased
Application number
DE102009048519A
Other languages
German (de)
Other versions
DE102009048519A1 (en
Inventor
Carsten 71116 Etling
Markus 78086 Löhr
Alexander Dr. 52066 Olowinsky
Jens 52062 Gedicke
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
MinebeaMitsumi Inc
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Minebea 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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Minebea Co Ltd filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE102009048519A priority Critical patent/DE102009048519A1/en
Publication of DE102009048519A1 publication Critical patent/DE102009048519A1/en
Publication of DE102009048519A8 publication Critical patent/DE102009048519A8/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • 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
    • 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
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • 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
    • F16C43/00—Assembling bearings
    • F16C43/02—Assembling sliding-contact 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/36—Material joints by welding

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fluid Mechanics (AREA)
  • Sliding-Contact Bearings (AREA)
DE102009048519A 2009-10-07 2009-10-07 Hydrodynamic bearing for a spindle motor, comprises stationary bearing bushes, a shaft rotatably arranged coaxial to the bearing bushes, a bearing gap, which is filled with a bearing fluid, and a pressure plate with the shaft Ceased DE102009048519A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102009048519A DE102009048519A1 (en) 2009-10-07 2009-10-07 Hydrodynamic bearing for a spindle motor, comprises stationary bearing bushes, a shaft rotatably arranged coaxial to the bearing bushes, a bearing gap, which is filled with a bearing fluid, and a pressure plate with the shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009048519A DE102009048519A1 (en) 2009-10-07 2009-10-07 Hydrodynamic bearing for a spindle motor, comprises stationary bearing bushes, a shaft rotatably arranged coaxial to the bearing bushes, a bearing gap, which is filled with a bearing fluid, and a pressure plate with the shaft

Publications (2)

Publication Number Publication Date
DE102009048519A1 DE102009048519A1 (en) 2011-04-14
DE102009048519A8 true DE102009048519A8 (en) 2011-07-28

Family

ID=43734521

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102009048519A Ceased DE102009048519A1 (en) 2009-10-07 2009-10-07 Hydrodynamic bearing for a spindle motor, comprises stationary bearing bushes, a shaft rotatably arranged coaxial to the bearing bushes, a bearing gap, which is filled with a bearing fluid, and a pressure plate with the shaft

Country Status (1)

Country Link
DE (1) DE102009048519A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179796B (en) * 2014-09-04 2016-07-13 东方电气集团东方电机有限公司 A kind of fuel supply method of Hydrodynamic thrust bearing
DE102018220336A1 (en) * 2018-11-27 2020-01-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for beam shaping and beam modulation in laser material processing
CN112077510B (en) * 2020-08-21 2022-03-25 上海航天精密机械研究所 Laser welding and welding following pressing device and method with coaxial protection function
DE102023110340B3 (en) 2022-07-12 2023-10-26 iCuTech - Anlagenbau GmbH Method for producing an SMD power semiconductor component module and SMD power semiconductor component module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10263863A (en) * 1997-03-28 1998-10-06 Nippon Steel Corp Laser beam tack welding method having a constant molten depth
US20020012483A1 (en) * 1999-04-15 2002-01-31 Kabushiki Kaisha Sankyo Seiki Seisakusho Spindle motor
DE102005022013A1 (en) * 2005-05-12 2006-11-16 Minebea Co., Ltd., Miyota Fluid-dynamic bearing thrust-washer-shaft arrangement manufacturing method for hard disk spindle drive involves using laser welding for making pressure plate
DE102005018836B3 (en) * 2005-04-22 2006-12-14 Minebea Co., Ltd. Fluid dynamic storage system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10263863A (en) * 1997-03-28 1998-10-06 Nippon Steel Corp Laser beam tack welding method having a constant molten depth
US20020012483A1 (en) * 1999-04-15 2002-01-31 Kabushiki Kaisha Sankyo Seiki Seisakusho Spindle motor
DE102005018836B3 (en) * 2005-04-22 2006-12-14 Minebea Co., Ltd. Fluid dynamic storage system
DE102005022013A1 (en) * 2005-05-12 2006-11-16 Minebea Co., Ltd., Miyota Fluid-dynamic bearing thrust-washer-shaft arrangement manufacturing method for hard disk spindle drive involves using laser welding for making pressure plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DÜRR,U.:Reproduzierbares Laserschweißen von Kupferwerkstoffen.In: Metall Nr.62 Jahgang 10/2008,S.647-651 Fig.4,5 *

Also Published As

Publication number Publication date
DE102009048519A1 (en) 2011-04-14

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Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8127 New person/name/address of the applicant

Owner name: MINEBEA CO., LTD., NAGANO, JP

Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANG, DE

R081 Change of applicant/patentee

Owner name: MINEBEA CO., LTD., JP

Free format text: FORMER OWNER: MINEBEA CO., LTD., NAGANO, JP

Effective date: 20110408

Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANG, DE

Free format text: FORMER OWNER: MINEBEA CO., LTD., NAGANO, JP

Effective date: 20110408

Owner name: MINEBEA MITSUMI INC., JP

Free format text: FORMER OWNER: MINEBEA CO., LTD., NAGANO, JP

Effective date: 20110408

R163 Identified publications notified

Effective date: 20110414

R082 Change of representative

Representative=s name: MAUCHER BOERJES JENKINS, DE

Representative=s name: MAUCHER JENKINS, DE

Representative=s name: MAUCHER JENKINS PATENTANWAELTE & RECHTSANWAELT, DE

R012 Request for examination validly filed
R081 Change of applicant/patentee

Owner name: MINEBEA MITSUMI INC., JP

Free format text: FORMER OWNERS: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., 80686 MUENCHEN, DE; MINEBEA CO., LTD., NAGANO, JP

Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANG, DE

Free format text: FORMER OWNERS: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., 80686 MUENCHEN, DE; MINEBEA CO., LTD., NAGANO, JP

R082 Change of representative

Representative=s name: MAUCHER JENKINS, DE

Representative=s name: MAUCHER JENKINS PATENTANWAELTE & RECHTSANWAELT, DE

R016 Response to examination communication
R002 Refusal decision in examination/registration proceedings
R003 Refusal decision now final