EP0786599B1 - Système de commande actionné par un fluide sous pression avec un cylindre et un piston plungeur - Google Patents

Système de commande actionné par un fluide sous pression avec un cylindre et un piston plungeur Download PDF

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Publication number
EP0786599B1
EP0786599B1 EP97100230A EP97100230A EP0786599B1 EP 0786599 B1 EP0786599 B1 EP 0786599B1 EP 97100230 A EP97100230 A EP 97100230A EP 97100230 A EP97100230 A EP 97100230A EP 0786599 B1 EP0786599 B1 EP 0786599B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
abutment
fluid pressure
operating means
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 - Lifetime
Application number
EP97100230A
Other languages
German (de)
English (en)
Other versions
EP0786599A2 (fr
EP0786599A3 (fr
Inventor
Otmar Kaup
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.)
Kaup & Co KG Gesellschaft fur Maschinenbau GmbH
Original Assignee
Kaup & Co KG Gesellschaft fur Maschinenbau GmbH
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 Kaup & Co KG Gesellschaft fur Maschinenbau GmbH filed Critical Kaup & Co KG Gesellschaft fur Maschinenbau GmbH
Publication of EP0786599A2 publication Critical patent/EP0786599A2/fr
Publication of EP0786599A3 publication Critical patent/EP0786599A3/fr
Application granted granted Critical
Publication of EP0786599B1 publication Critical patent/EP0786599B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F15B15/1438—Cylinder to end cap assemblies
    • 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
    • F15B15/1433—End caps
    • 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
    • F15B15/1457—Piston rods
    • F15B15/1461—Piston rod sealings

Definitions

  • the invention relates to a pressure medium drive according to the preamble of the claim 1.
  • Such pressure medium drives which are usually designed as hydraulic drives are in large quantities, for example for industrial trucks such as forklifts etc. needed.
  • the invention is therefore based on the object of a pressure medium drive Specify that simple to manufacture and using fewer parts is in which the abutment has a precise fit and the sealing ring is easy to replace.
  • the piston is in one in the cylinder chamber inserted guide ring is guided and if the sealing ring between the Guide ring and the sliding body is arranged, especially if the Guide ring made of a slidable plastic and in one Stepped bore of the cylinder chamber is arranged.
  • the plunger itself serves as a surprisingly simple way Locking device for the sliding body; other fasteners are not needed.
  • the sliding body can not from the transverse grooves in the Cylinders are pushed out. Is the plunger out of the cylinder pulled out, so the sliding body can be perpendicular to Slide the cylinder longitudinal axis out of the transverse grooves so that then also the sealing ring without special tools pulled out its stepped bore and through a new one Sealing ring can be replaced.
  • the sliding body is also arbitrary often reusable.
  • the sliding body in the axial direction has a rectangular outline (including a square outline too understand) and if the sliding strips on two opposite Sides of the rectangle are arranged.
  • This wiper ring can also be easily levered out of the ring groove and replace with a new one. As long as the wiper ring is reusable, it remains in the sliding body and can with this after replacing the sealing ring in the transverse grooves are inserted, whereupon the renewed locking by the Plunger takes place.
  • a cylinder 1 is shown with a cylinder chamber 2 in which a plunger 3 is arranged, which is also referred to as a plunger.
  • a plunger 3 is arranged, which is also referred to as a plunger.
  • an annular gap 4 is formed, in one Connection bore 5 opens for a hydraulic line, not shown.
  • the end of the cylinder chamber 2 is slightly enlarged in diameter, and in this extension a guide ring 6 is used, which consists of a good sliding plastic, such as polyamide. On this extension is followed by a stepped bore 7 Sealing ring 8 is used, which in the manner shown as a groove or Lip ring is formed.
  • This stepped bore 7 is in turn connected to one another parallel transverse grooves 9 and 10, which have a prismatic cross section and run across the entire cylinder 1, i.e. on both ends are open.
  • these transverse grooves 9 and 10 each delimited by a claw 11, which is parallel runs to the respective transverse groove 9 or 10 and with each one Sliding seat forms.
  • the sliding body 12 forms Abutment for the sealing ring 8, which in the direction of the Cylinder opening is under the pressure of the hydraulic fluid, which is up to Is 300 bar, but this value is not a critical upper limit represents.
  • the sliding body 12 has one Contact surface 15 for the sealing ring 8 and on the opposite Side within the through hole 13 an annular groove 16 ( Figure 4) for the inclusion of a scraper ring 17.
  • This scraper ring can vary depending on Findings can be reused; he does not need a metal frame because the Sliding body 12 takes over this function.
  • How to look special Figure 3 shows the scraper ring 17 in all directions by the Walls of the annular groove 16 and held by the plunger 3; he can however, after pulling out the plunger 3 without further ado be pried out or rolled out.
  • the sliding body 12 has axial viewing direction according to arrow V a rectangular outline, wherein on two opposite sides of the rectangle R two to each other parallel sliding strips 18 and 19 are arranged, which also one have a prismatic cross section and to the transverse grooves 8 and 9 are arranged and designed complementary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sealing Devices (AREA)
  • Pens And Brushes (AREA)
  • Power Steering Mechanism (AREA)

Claims (6)

  1. Système d'entraínement à fluide sous pression comportant un cylindre (1, 23) avec une chambre de cylindre (2, 2a, 2b) et un piston (3, 3a, 3b) à guidage radial, une bague d'étanchéité (8) et une contre-butée (12) interchangeable avec un perçage traversant (13) pour le piston (3, 3a, 3b) et comportant une surface d'appui (15) pour la bague d'étanchéité (8), caractérisé en ce que :
    a) le piston (3, 3a, 3b) est réalisé sous forme de piston plongeur qui peut être sorti hors du perçage traversant (13) et de la bague d'étanchéité (8) sans démonter la contre-butée (12),
    b) la contre-butée (12) est réalisée sous forme de poussoir (12) et est susceptible d'être enfilée dans l'extrémité du cylindre (1, 23), de manière à pouvoir être échangée en direction radiale, au moyen de baguettes coulissantes (18, 19) diamétralement opposées et de gorges transversales (9, 10) complémentaires, tout en étant cependant fixée en direction axiale, les baguettes coulissantes (18, 19) et les gorges transversales (9, 10) possédant des sections transversales prismatiques et formant une sorte d'assemblage à queue d'aronde, et en ce que
    c) en position enfilée, la contre-butée (12) est arrêtée par le piston (3, 3a, 3b) en direction de coulissement par rapport au cylindre (1, 23).
  2. Système d'entraínement à fluide sous pression selon la revendication 1, caractérisé en ce que le poussoir (12) présente, vu en direction axiale, un contour rectangulaire et en ce que les baguettes coulissantes (18, 19) sont agencées sur deux côtés opposés du rectangle (R).
  3. Système d'entraínement à fluide sous pression selon la revendication 1, caractérisé en ce qu'à l'intérieur du perçage traversant (13), le poussoir (12) est pourvu d'une gorge annulaire (16) dans laquelle est mise en place une bague racleuse (17).
  4. Système d'entraínement à fluide sous pression selon la revendication 1, caractérisé en ce que le piston (3, 3a, 3b) est guidé dans une bague de guidage mise en place dans la chambre de cylindre (2, 2a, 2b) et en ce que la bague d'étanchéité (8) est agencée entre la bague de guidage (6) et le poussoir (12).
  5. Système d'entraínement à fluide sous pression selon la revendication 4, caractérisé en ce que la bague de guidage (6) est en matière plastique capable de glisser.
  6. Système d'entraínement à fluide sous pression selon la revendication 4, caractérisé en ce que la bague d'étanchéité (8) est agencée dans un perçage à gradins (7) de la chambre de cylindre (2, 2a, 2b).
EP97100230A 1996-01-25 1997-01-09 Système de commande actionné par un fluide sous pression avec un cylindre et un piston plungeur Expired - Lifetime EP0786599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602553 1996-01-25
DE19602553A DE19602553C2 (de) 1996-01-25 1996-01-25 Druckmittelantrieb mit einem Zylinder und einem Tauchkolben

Publications (3)

Publication Number Publication Date
EP0786599A2 EP0786599A2 (fr) 1997-07-30
EP0786599A3 EP0786599A3 (fr) 1998-07-08
EP0786599B1 true EP0786599B1 (fr) 2001-11-28

Family

ID=7783601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100230A Expired - Lifetime EP0786599B1 (fr) 1996-01-25 1997-01-09 Système de commande actionné par un fluide sous pression avec un cylindre et un piston plungeur

Country Status (6)

Country Link
US (1) US5701800A (fr)
EP (1) EP0786599B1 (fr)
JP (1) JP3871757B2 (fr)
AT (1) ATE209756T1 (fr)
DE (2) DE19602553C2 (fr)
ES (1) ES2168527T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5632606A (en) * 1993-11-23 1997-05-27 Sarcos Group Volumetric pump/valve
DE19834149C2 (de) * 1998-07-29 2003-12-11 Kaup Gmbh & Co Kg Verfahren zum Steuern eines hydraulischen Seitenschieberantriebs und Hydraulikantrieb hierfür
DE19903174C2 (de) * 1999-01-27 2001-05-31 Kaup Gmbh & Co Kg Anbaugerät für Flurförderzeuge, mit einem Hubmast, insbesondere für Gabelstapler
DE19903160C2 (de) * 1999-01-27 2003-06-18 Kaup Gmbh & Co Kg Flurförderzeug mit einem Hubmast, insbesondere für Gabelstapler
DE19903157C2 (de) * 1999-01-27 2002-11-21 Kaup Gmbh & Co Kg Anbaugerät für Flurförderzeuge mit einem Hubmast, insbesondere für Gabelstapler
US6394462B1 (en) * 2000-01-26 2002-05-28 Tse Brakes, Inc. Push rod seal for disc brake actuator
US20030156935A1 (en) * 2002-02-21 2003-08-21 Luciano Mondani Fork movement assembly for lift trucks
JP4737454B2 (ja) 2006-12-06 2011-08-03 Ｓｍｃ株式会社 流体圧シリンダに用いられる止め輪
JP4737453B2 (ja) 2006-12-06 2011-08-03 Ｓｍｃ株式会社 流体圧シリンダ
JP4929495B2 (ja) * 2006-12-06 2012-05-09 Ｓｍｃ株式会社 ダンパ固定構造
JP5757976B2 (ja) * 2013-06-12 2015-08-05 株式会社コガネイ 流体圧シリンダ
RU2594098C1 (ru) * 2015-05-28 2016-08-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Сибирский государственный индустриальный университет" Плунжерный гидроцилиндр
CA3007257A1 (fr) 2017-06-08 2018-12-08 Jody Addicott Appareil de transport a fourches destine a un chariot elevateur a fourches et mecanisme de vanne associe
WO2022229387A1 (fr) * 2021-04-29 2022-11-03 Ferrobotics Compliant Robot Technology Gmbh Actionneur linéaire pneumatique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE302066B (fr) * 1965-06-05 1968-07-01 F Sneen
GB1340064A (en) * 1970-07-03 1973-12-05 Girling Ltd Brake actuators
US4085661A (en) * 1976-07-16 1978-04-25 Edward D. Meyer Double wedge-lock cylinder head
AT363746B (de) * 1976-12-30 1981-08-25 Vmw Ranshofen Berndorf Ag Druckluft- und/oder hydraulikzylinder
DE3635020C2 (de) * 1985-10-26 1994-08-04 Volkswagen Ag Formschlüssige Befestigung einer axialkraftbeaufschlagten kreiszylindrischen Anschlagscheibe in einem Zylinder
DE3635010A1 (de) 1986-10-10 1988-04-14 Gock Eberhard Priv Doz Prof Dr Erzeugung von synthetischem anatas aus ilmeniten mit duennsaeure
FR2615914A1 (fr) * 1987-06-01 1988-12-02 Moselle Ateliers Chantiers Verin hydraulique ou pneumatique equipe d'un coussinet d'etancheite a demontage rapide
US5245911A (en) * 1992-09-22 1993-09-21 Yuda Lawrence F Cylinder assembly and method

Also Published As

Publication number Publication date
JPH09296806A (ja) 1997-11-18
DE59705481D1 (de) 2002-01-10
DE19602553C2 (de) 1999-10-14
EP0786599A2 (fr) 1997-07-30
DE19602553A1 (de) 1997-07-31
ES2168527T3 (es) 2002-06-16
EP0786599A3 (fr) 1998-07-08
JP3871757B2 (ja) 2007-01-24
ATE209756T1 (de) 2001-12-15
US5701800A (en) 1997-12-30

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