MX2020008846A - Estructura de sello en cilindro hidraulico y el cilindro hidraulico. - Google Patents

Estructura de sello en cilindro hidraulico y el cilindro hidraulico.

Info

Publication number
MX2020008846A
MX2020008846A MX2020008846A MX2020008846A MX2020008846A MX 2020008846 A MX2020008846 A MX 2020008846A MX 2020008846 A MX2020008846 A MX 2020008846A MX 2020008846 A MX2020008846 A MX 2020008846A MX 2020008846 A MX2020008846 A MX 2020008846A
Authority
MX
Mexico
Prior art keywords
hydraulic cylinder
piston
packing
cylinder hole
slid
Prior art date
Application number
MX2020008846A
Other languages
English (en)
Inventor
Masayuki Kudo
Ken Tamura
Kenichi Takeda
Tsukasa ODAKA
Masahiko Kawakami
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
Publication of MX2020008846A publication Critical patent/MX2020008846A/es

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
    • 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
    • F16J15/46—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
    • F16J15/3268—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
    • F16J15/16—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)

Abstract

Es un objeto proporcionar una estructura de sello que esté entre un pistón y un agujero de cilindro en un cilindro hidráulico y que logre una operación más suave del pistón y permita una vida de servicio más larga de un empaque, y proporcionar el cilindro hidráulico. La solución es un empaque 20 que tiene una superficie circunferencial externa e incluye un par de partes de sellado 23 (23a) y 24 (24a) ubicadas en extremos opuestos del empaque en una dirección a lo largo de un eje L. Un pistón 4 tiene una cara de deslizamiento 4c que tiene una primera muesca rebajada 12. Cuando se instala en la primera muesca rebajada 12, el empaque 20 tiene un diámetro externo más pequeño que el diámetro de una cara receptora de deslizamiento 3c de un agujero de cilindro 3. El pistón divide el agujero de cilindro en un par de cámaras 3a y 3b. En tanto que se suministra un fluido comprimido a cualquiera de una de las cámaras 3a y 3b, un borde lateral del empaque adyacente a la cámara a una alta presión se estira en una dirección radial Y por deformación elástica debido a la presión del fluido comprimido, provocando así que una parte de sellado adyacente a la cámara a la alta presión reduzca un espacio d formado con la cara receptora de deslizamiento del agujero de cilindro y entre en contacto con la cara receptora de deslizamiento.
MX2020008846A 2018-02-28 2019-02-20 Estructura de sello en cilindro hidraulico y el cilindro hidraulico. MX2020008846A (es)

Applications Claiming Priority (2)

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
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

Publications (1)

Publication Number Publication Date
MX2020008846A true MX2020008846A (es) 2020-10-01

Family

ID=67806147

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020008846A MX2020008846A (es) 2018-02-28 2019-02-20 Estructura de sello en cilindro hidraulico y el cilindro hidraulico.

Country Status (10)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112648304A (zh) * 2019-10-11 2021-04-13 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

Family Cites Families (15)

* 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
CH612256A5 (es) * 1977-06-27 1979-07-13 Occident Ets
JPH0497165U (es) * 1991-01-22 1992-08-21
DE4137461C2 (de) 1991-11-14 1994-06-16 Freudenberg Carl Fa Dichtungsanordnung für einen Separator
JP2537236Y2 (ja) * 1992-03-31 1997-05-28 エスエムシー株式会社 スプール弁
CA2119920A1 (en) 1993-06-28 1994-12-29 Richard A. Lutkus Air cylinder with anti-blowby piston
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
JP5157914B2 (ja) * 2006-12-14 2013-03-06 Ｎｏｋ株式会社 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
JP5636613B2 (ja) 2010-05-19 2014-12-10 Smc株式会社 流体圧機器
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

Also Published As

Publication number Publication date
BR112020017504A2 (pt) 2020-12-22
EP3760881A1 (en) 2021-01-06
JP2019152233A (ja) 2019-09-12
JP6997977B2 (ja) 2022-01-18
RU2020131523A (ru) 2022-03-28
US20210003152A1 (en) 2021-01-07
CN111771064A (zh) 2020-10-13
KR20200124232A (ko) 2020-11-02
EP3760881A4 (en) 2021-11-17
TW201937084A (zh) 2019-09-16
WO2019167738A1 (ja) 2019-09-06

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