DE102019008549A1 - Abdichtungsstruktur - Google Patents

Abdichtungsstruktur Download PDF

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Publication number
DE102019008549A1
DE102019008549A1 DE102019008549.3A DE102019008549A DE102019008549A1 DE 102019008549 A1 DE102019008549 A1 DE 102019008549A1 DE 102019008549 A DE102019008549 A DE 102019008549A DE 102019008549 A1 DE102019008549 A1 DE 102019008549A1
Authority
DE
Germany
Prior art keywords
liquid
sealing
sealing structure
free space
clearance
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.)
Withdrawn
Application number
DE102019008549.3A
Other languages
German (de)
English (en)
Inventor
Toyoaki Suzuki
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
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 Fanuc Corp filed Critical Fanuc Corp
Publication of DE102019008549A1 publication Critical patent/DE102019008549A1/de
Withdrawn legal-status Critical Current

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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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
    • 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
    • F16C32/0629—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 liquid cushion, e.g. oil cushion
    • F16C32/0633—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 liquid cushion, e.g. oil cushion the liquid being retained in a gap
    • 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
    • F16C32/0666—Details of hydrostatic bearings independent of fluid supply or direction of load of bearing pads
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
    • F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Of Bearings (AREA)
DE102019008549.3A 2018-12-17 2019-12-10 Abdichtungsstruktur Withdrawn DE102019008549A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018235299A JP6867363B2 (ja) 2018-12-17 2018-12-17 シール構造
JP2018-235299 2018-12-17

Publications (1)

Publication Number Publication Date
DE102019008549A1 true DE102019008549A1 (de) 2020-06-18

Family

ID=70859084

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102019008549.3A Withdrawn DE102019008549A1 (de) 2018-12-17 2019-12-10 Abdichtungsstruktur

Country Status (4)

Country Link
US (1) US11306823B2 (enExample)
JP (1) JP6867363B2 (enExample)
CN (1) CN111322407B (enExample)
DE (1) DE102019008549A1 (enExample)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035617B1 (enExample) * 1970-12-17 1975-11-18
US3778123A (en) * 1971-11-17 1973-12-11 Singer Co Liquid bearing unit and seal
DE3824104A1 (de) * 1987-07-17 1989-01-26 Koyo Seiko Co Ferrofluid-dichtung
US5238254A (en) * 1987-07-17 1993-08-24 Koyo Seiko Co., Ltd. Ferrofluid seal apparatus
JPH03282008A (ja) * 1990-03-28 1991-12-12 Nippon Seiko Kk ダンパ付エアスピンドル
US5575567A (en) * 1994-11-25 1996-11-19 Competitive Technologies, Inc. Surface tension bearings and seals
JP2001178076A (ja) * 1999-10-07 2001-06-29 Nippon Densan Corp 流体シールおよびこれを用いたスピンドルモータ、並びにこのスピンドルモータを用いたディスク装置
JP2008236947A (ja) * 2007-03-22 2008-10-02 Citizen Chiba Precision Co Ltd 電動機の軸受構造
JP4737224B2 (ja) * 2008-04-24 2011-07-27 トヨタ自動車株式会社 シール構造
JP5722393B2 (ja) * 2013-07-11 2015-05-20 ファナック株式会社 回転部にシール構造部を有する工作機械
JP5980891B2 (ja) * 2014-12-16 2016-08-31 ファナック株式会社 回転ジョイント支持構造部、工作機械の主軸および電動機

Also Published As

Publication number Publication date
CN111322407A (zh) 2020-06-23
JP6867363B2 (ja) 2021-04-28
US20200191277A1 (en) 2020-06-18
JP2020097959A (ja) 2020-06-25
CN111322407B (zh) 2022-11-29
US11306823B2 (en) 2022-04-19

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Date Code Title Description
R012 Request for examination validly filed
R016 Response to examination communication
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee