CN111322407B - 密封构造 - Google Patents

密封构造 Download PDF

Info

Publication number
CN111322407B
CN111322407B CN201911296157.2A CN201911296157A CN111322407B CN 111322407 B CN111322407 B CN 111322407B CN 201911296157 A CN201911296157 A CN 201911296157A CN 111322407 B CN111322407 B CN 111322407B
Authority
CN
China
Prior art keywords
gap
liquid
sealing
sealing structure
gravity
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.)
Expired - Fee Related
Application number
CN201911296157.2A
Other languages
English (en)
Chinese (zh)
Other versions
CN111322407A (zh
Inventor
铃木丰明
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 CN111322407A publication Critical patent/CN111322407A/zh
Application granted granted Critical
Publication of CN111322407B publication Critical patent/CN111322407B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F16J15/02—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
    • 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
    • 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)
CN201911296157.2A 2018-12-17 2019-12-16 密封构造 Expired - Fee Related CN111322407B (zh)

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 (2)

Publication Number Publication Date
CN111322407A CN111322407A (zh) 2020-06-23
CN111322407B true CN111322407B (zh) 2022-11-29

Family

ID=70859084

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911296157.2A Expired - Fee Related CN111322407B (zh) 2018-12-17 2019-12-16 密封构造

Country Status (4)

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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238254A (en) * 1987-07-17 1993-08-24 Koyo Seiko Co., Ltd. Ferrofluid seal apparatus
US6671125B1 (en) * 1999-10-07 2003-12-30 Nidec Corporation Fluid seal and bearing with same
CN101566231A (zh) * 2008-04-24 2009-10-28 丰田自动车株式会社 密封结构、链盒以及密封结构形成方法
CN104279339A (zh) * 2013-07-11 2015-01-14 发那科株式会社 机床
CN105690179A (zh) * 2014-12-16 2016-06-22 发那科株式会社 旋转接头支承构造部、机床的主轴以及电动机

Family Cites Families (6)

* 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
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
JP2008236947A (ja) * 2007-03-22 2008-10-02 Citizen Chiba Precision Co Ltd 電動機の軸受構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238254A (en) * 1987-07-17 1993-08-24 Koyo Seiko Co., Ltd. Ferrofluid seal apparatus
US6671125B1 (en) * 1999-10-07 2003-12-30 Nidec Corporation Fluid seal and bearing with same
CN101566231A (zh) * 2008-04-24 2009-10-28 丰田自动车株式会社 密封结构、链盒以及密封结构形成方法
CN104279339A (zh) * 2013-07-11 2015-01-14 发那科株式会社 机床
CN105690179A (zh) * 2014-12-16 2016-06-22 发那科株式会社 旋转接头支承构造部、机床的主轴以及电动机

Also Published As

Publication number Publication date
CN111322407A (zh) 2020-06-23
JP6867363B2 (ja) 2021-04-28
DE102019008549A1 (de) 2020-06-18
US20200191277A1 (en) 2020-06-18
JP2020097959A (ja) 2020-06-25
US11306823B2 (en) 2022-04-19

Similar Documents

Publication Publication Date Title
CN102343521A (zh) 工作机械用主轴驱动装置
JP4745359B2 (ja) 切削加工機用ロータリジョイント
CN101970173A (zh) 工作机械中主轴驱动装置之旋转阻抗装置
CN105290802B (zh) 具有罩的旋转工作台体
CN111322407B (zh) 密封构造
CN101678530A (zh) 用于在研磨时支撑旋转的工件的方法以及流体动力学的中心架
CN106468264B (zh) 涡旋压缩机及其泵体组件
CN111097929B (zh) 主轴装置
KR101450125B1 (ko) 원통 연삭기
JP6464775B2 (ja) エアシール構造、及びエアシール構造が適用された主軸装置
JPH11336750A (ja) 液体動圧スピンドル装置
KR20200088616A (ko) 유정압 스핀들 장치
JP4657029B2 (ja) 静圧気体軸受スピンドル
JPH03149103A (ja) 工作機械の軸受装置
KR20150050260A (ko) 공작 기계의 주축 구조
JP4890046B2 (ja) 回転式工作装置
JP7265396B2 (ja) 工作用の回転機器
JP6492699B2 (ja) 作動部材のスラスト支持装置、及び同支持装置を備えた工作機械
KR20170004147A (ko) 실링장치 및 이를 구비한 공작기계
JP2020020347A (ja) 回転軸部材支持装置及び研削盤
JPH02161191A (ja) 密閉形スクロール型圧縮機
JPH07171761A (ja) 研磨装置の研磨液供給機構
JP2021534989A (ja) 回転シール
JP3870473B2 (ja) 工作機械用主軸への切削用流体供給装置
CN110773757B (zh) 主轴装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20221129