EP0837250A3 - Druckmittelbetätigbarer Arbeitszylinder - Google Patents

Druckmittelbetätigbarer Arbeitszylinder Download PDF

Info

Publication number
EP0837250A3
EP0837250A3 EP97117301A EP97117301A EP0837250A3 EP 0837250 A3 EP0837250 A3 EP 0837250A3 EP 97117301 A EP97117301 A EP 97117301A EP 97117301 A EP97117301 A EP 97117301A EP 0837250 A3 EP0837250 A3 EP 0837250A3
Authority
EP
European Patent Office
Prior art keywords
piston
piston rod
damping
pressure
fluid actuator
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.)
Granted
Application number
EP97117301A
Other languages
English (en)
French (fr)
Other versions
EP0837250B1 (de
EP0837250A2 (de
Inventor
Volkmar Leutner
Alain Holvoet
Jean Lurot
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0837250A2 publication Critical patent/EP0837250A2/de
Publication of EP0837250A3 publication Critical patent/EP0837250A3/de
Application granted granted Critical
Publication of EP0837250B1 publication Critical patent/EP0837250B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

Es wird ein druckmittelbetätigter Arbeitszylinder (10) mit längsbeweglichem Kolben (15) und Kolbenstange (16) vorgeschlagen, bei dem der Kolben (15) mittels einer Dämpfungseinrichtung (46) gedämpft in seine Endstellung einfahren und schnell aus ihr herausfahren kann. Eine auf der Kolbenstange (16) axial beweglich zwischen Anschlägen (24, 25) geführte Dämpfungsbuchse (23) arbeitet dabei als Rückschlagventil, das in eine parallel zu den Drosselnuten (30) geführte Druckmittel-Verbindung (35) geschaltet ist. Eine in der Dämpfungsbuchse (23) angeordnete Drosselstelle (38) garantiert eine definierte Endgeschwindigkeit beim Anschlagen auch bei niedrigen Druckdifferenzen.
EP97117301A 1996-10-21 1997-10-07 Druckmittelbetätigbarer Arbeitszylinder Expired - Lifetime EP0837250B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29618186U 1996-10-21
DE29618186U DE29618186U1 (de) 1996-10-21 1996-10-21 Druckmittelbetätigbarer Arbeitszylinder

Publications (3)

Publication Number Publication Date
EP0837250A2 EP0837250A2 (de) 1998-04-22
EP0837250A3 true EP0837250A3 (de) 1998-05-20
EP0837250B1 EP0837250B1 (de) 2002-02-13

Family

ID=8030782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117301A Expired - Lifetime EP0837250B1 (de) 1996-10-21 1997-10-07 Druckmittelbetätigbarer Arbeitszylinder

Country Status (2)

Country Link
EP (1) EP0837250B1 (de)
DE (2) DE29618186U1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406292B (de) * 1998-07-22 2000-03-27 Hainzl Industriesysteme Ges M Vorrichtung zum abbremsen eines kolbens eines hydraulikzylinders
DE19836422C2 (de) * 1998-08-12 2002-10-24 Mannesmann Rexroth Ag Druckmittelbetätigter Arbeitszylinder
DE29910610U1 (de) 1999-06-17 1999-09-16 Bümach Engineering International B.V., Emmen Führungsseitige Dämpfung in einfach wirkenden Arbeitszylindern
JP4431928B2 (ja) * 2001-02-20 2010-03-17 Ｓｍｃ株式会社 多段行程型シリンダ
EP2047116B1 (de) * 2007-01-12 2010-07-14 Festo AG & Co. KG Fluidbetätigte lineareinheit, insbesondere linearantrieb
CN103939420B (zh) * 2013-09-30 2016-07-13 湖北江山液压科技有限公司 一种液压缸恒节流缓冲装置
CN104895869B (zh) * 2015-04-27 2017-05-24 徐工集团工程机械股份有限公司科技分公司 一种液压旋转平台缓冲模块
CN117842366A (zh) * 2024-02-20 2024-04-09 梁贤博 无预力拦阻泄压筒及无预力拦阻减速系统
CN119288944B (zh) * 2024-11-13 2025-11-21 洛阳船舶材料研究所(中国船舶集团有限公司第七二五研究所) 一种液压缸缓冲器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1016986A (en) * 1962-07-09 1966-01-12 Tomkins Johnson Co A gaseous pressure motor having decelerating means for cushioning the end of the stroke of the piston
DE2920369A1 (de) * 1979-05-19 1980-12-04 Mecman Ab Vorrichtung zur daempfung eines kolbens bei erreichen einer endstellung
GB2075148A (en) * 1980-03-26 1981-11-11 Komatsu Mfg Co Ltd Hydraulic cylinders
DE4414485A1 (de) * 1994-04-26 1995-11-02 Bosch Gmbh Robert Druckmittelbetätigbarer Arbeitszylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1016986A (en) * 1962-07-09 1966-01-12 Tomkins Johnson Co A gaseous pressure motor having decelerating means for cushioning the end of the stroke of the piston
DE2920369A1 (de) * 1979-05-19 1980-12-04 Mecman Ab Vorrichtung zur daempfung eines kolbens bei erreichen einer endstellung
GB2075148A (en) * 1980-03-26 1981-11-11 Komatsu Mfg Co Ltd Hydraulic cylinders
DE4414485A1 (de) * 1994-04-26 1995-11-02 Bosch Gmbh Robert Druckmittelbetätigbarer Arbeitszylinder

Also Published As

Publication number Publication date
DE29618186U1 (de) 1998-02-19
EP0837250B1 (de) 2002-02-13
DE59706369D1 (de) 2002-03-21
EP0837250A2 (de) 1998-04-22

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