JP6997977B2 - 流体圧シリンダにおけるシール構造及びその流体圧シリンダ - Google Patents

流体圧シリンダにおけるシール構造及びその流体圧シリンダ Download PDF

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Publication number
JP6997977B2
JP6997977B2 JP2018035914A JP2018035914A JP6997977B2 JP 6997977 B2 JP6997977 B2 JP 6997977B2 JP 2018035914 A JP2018035914 A JP 2018035914A JP 2018035914 A JP2018035914 A JP 2018035914A JP 6997977 B2 JP6997977 B2 JP 6997977B2
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Japan
Prior art keywords
packing
sliding surface
chamber
tip
concave groove
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.)
Active
Application number
JP2018035914A
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English (en)
Japanese (ja)
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JP2019152233A5 (enExample
JP2019152233A (ja
Inventor
政行 工藤
健一 武田
雅彦 川上
健 田村
司 小▲高▼
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.)
SMC Corp
Original Assignee
SMC 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 SMC Corp filed Critical SMC Corp
Priority to JP2018035914A priority Critical patent/JP6997977B2/ja
Priority to TW108105407A priority patent/TW201937084A/zh
Priority to RU2020131523A priority patent/RU2020131523A/ru
Priority to PCT/JP2019/006246 priority patent/WO2019167738A1/ja
Priority to CN201980014918.2A priority patent/CN111771064A/zh
Priority to US16/976,299 priority patent/US20210003152A1/en
Priority to KR1020207024257A priority patent/KR20200124232A/ko
Priority to EP19761281.5A priority patent/EP3760881A4/en
Priority to MX2020008846A priority patent/MX2020008846A/es
Priority to BR112020017504-8A priority patent/BR112020017504A2/pt
Publication of JP2019152233A publication Critical patent/JP2019152233A/ja
Publication of JP2019152233A5 publication Critical patent/JP2019152233A5/ja
Application granted granted Critical
Publication of JP6997977B2 publication Critical patent/JP6997977B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
    • F16J1/008—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials with sealing lips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • F15B15/1452—Piston sealings
    • 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
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking 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
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/324—Arrangements for lubrication or cooling of the sealing itself
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • 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
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
    • 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
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/20—Rings with special cross-section; Oil-scraping rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Devices (AREA)
  • Actuator (AREA)
JP2018035914A 2018-02-28 2018-02-28 流体圧シリンダにおけるシール構造及びその流体圧シリンダ Active JP6997977B2 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2018035914A JP6997977B2 (ja) 2018-02-28 2018-02-28 流体圧シリンダにおけるシール構造及びその流体圧シリンダ
TW108105407A TW201937084A (zh) 2018-02-28 2019-02-19 流體壓力缸的密封構造及該流體壓力缸
BR112020017504-8A BR112020017504A2 (pt) 2018-02-28 2019-02-20 Estrutura de vedação em cilindro hidráulico e referido cilindro hidráulico
CN201980014918.2A CN111771064A (zh) 2018-02-28 2019-02-20 流体压缸中的密封构造及该流体压缸
US16/976,299 US20210003152A1 (en) 2018-02-28 2019-02-20 Seal structure in hydraulic cylinder, and said hydraulic cylinder
KR1020207024257A KR20200124232A (ko) 2018-02-28 2019-02-20 유체압 실린더에 있어서의 실링 구조 및 그 유체압 실린더
RU2020131523A RU2020131523A (ru) 2018-02-28 2019-02-20 Уплотнительная конструкция в гидравлическом цилиндре и гидравлический цилиндр
MX2020008846A MX2020008846A (es) 2018-02-28 2019-02-20 Estructura de sello en cilindro hidraulico y el cilindro hidraulico.
PCT/JP2019/006246 WO2019167738A1 (ja) 2018-02-28 2019-02-20 流体圧シリンダにおけるシール構造及びその流体圧シリンダ
EP19761281.5A EP3760881A4 (en) 2018-02-28 2019-02-20 SEAL ARRANGEMENT IN A HYDRAULIC CYLINDER AND SAID HYDRAULIC CYLINDER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018035914A JP6997977B2 (ja) 2018-02-28 2018-02-28 流体圧シリンダにおけるシール構造及びその流体圧シリンダ

Publications (3)

Publication Number Publication Date
JP2019152233A JP2019152233A (ja) 2019-09-12
JP2019152233A5 JP2019152233A5 (enExample) 2021-04-15
JP6997977B2 true JP6997977B2 (ja) 2022-01-18

Family

ID=67806147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018035914A Active JP6997977B2 (ja) 2018-02-28 2018-02-28 流体圧シリンダにおけるシール構造及びその流体圧シリンダ

Country Status (10)

Country Link
US (1) US20210003152A1 (enExample)
EP (1) EP3760881A4 (enExample)
JP (1) JP6997977B2 (enExample)
KR (1) KR20200124232A (enExample)
CN (1) CN111771064A (enExample)
BR (1) BR112020017504A2 (enExample)
MX (1) MX2020008846A (enExample)
RU (1) RU2020131523A (enExample)
TW (1) TW201937084A (enExample)
WO (1) WO2019167738A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112648304B (zh) * 2019-10-11 2024-08-23 舍弗勒技术股份两合公司 密封装置及液压活塞装置
US11067104B1 (en) * 2020-11-16 2021-07-20 Caterpillar Inc. Integrated cylinder piston and bearing as a hydraulic cushion
CN114810718B (zh) * 2022-05-25 2025-08-26 广州德马威工业装备制造有限公司 一种多重密封耐高压液体密封件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU431969B2 (en) 1968-08-06 1973-01-24 Seal ring
US5297804A (en) 1991-11-14 1994-03-29 Firma Carl Freudenberg Sealing system
EP0635663A1 (en) 1993-06-28 1995-01-25 American Cylinder Co., Inc. Air cylinder with anti-blowby piston
JP2011241914A (ja) 2010-05-19 2011-12-01 Smc Corp 流体圧機器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH612256A5 (enExample) * 1977-06-27 1979-07-13 Occident Ets
JPH0497165U (enExample) * 1991-01-22 1992-08-21
JP2537236Y2 (ja) * 1992-03-31 1997-05-28 エスエムシー株式会社 スプール弁
JPH0914451A (ja) * 1995-07-04 1997-01-14 Ckd Corp ピストン及びシリンダ
JPH09144884A (ja) * 1995-11-24 1997-06-03 Nok Corp ピストン
JP2008133920A (ja) * 2006-11-29 2008-06-12 Smc Corp 流体圧シリンダ
WO2008072738A1 (ja) * 2006-12-14 2008-06-19 Nok Corporation 密封装置及び密封装置の製造方法
JP2010014202A (ja) * 2008-07-03 2010-01-21 Nok Corp 密封装置
JP5360569B2 (ja) * 2009-07-21 2013-12-04 Ｓｍｃ株式会社 パッキン
CN103388604A (zh) * 2012-05-07 2013-11-13 北京纽希液压技术研究所 一种液压缸
CN205841759U (zh) * 2016-07-15 2016-12-28 无锡恩福油封有限公司 密封装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU431969B2 (en) 1968-08-06 1973-01-24 Seal ring
US5297804A (en) 1991-11-14 1994-03-29 Firma Carl Freudenberg Sealing system
EP0635663A1 (en) 1993-06-28 1995-01-25 American Cylinder Co., Inc. Air cylinder with anti-blowby piston
JP2011241914A (ja) 2010-05-19 2011-12-01 Smc Corp 流体圧機器

Also Published As

Publication number Publication date
EP3760881A1 (en) 2021-01-06
RU2020131523A (ru) 2022-03-28
US20210003152A1 (en) 2021-01-07
MX2020008846A (es) 2020-10-01
JP2019152233A (ja) 2019-09-12
KR20200124232A (ko) 2020-11-02
CN111771064A (zh) 2020-10-13
TW201937084A (zh) 2019-09-16
WO2019167738A1 (ja) 2019-09-06
EP3760881A4 (en) 2021-11-17
BR112020017504A2 (pt) 2020-12-22

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