EP2541073A3 - Pneumatic cylinder with self-adjusting end position dampening - Google Patents

Pneumatic cylinder with self-adjusting end position dampening Download PDF

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Publication number
EP2541073A3
EP2541073A3 EP12171413.3A EP12171413A EP2541073A3 EP 2541073 A3 EP2541073 A3 EP 2541073A3 EP 12171413 A EP12171413 A EP 12171413A EP 2541073 A3 EP2541073 A3 EP 2541073A3
Authority
EP
European Patent Office
Prior art keywords
pressure
control
control valve
chamber
damping
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
EP12171413.3A
Other languages
German (de)
French (fr)
Other versions
EP2541073B1 (en
EP2541073A2 (en
Inventor
Axel Dr. Fröschle
Peter Rohatschek
Thomas Henke
Rainer Schweizer
Alexander Buchhauser
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.)
Parker Hannifin Manufacturing Germany GmbH and Co KG
Original Assignee
Parker Hannifin Manufacturing Germany GmbH and Co KG
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 Parker Hannifin Manufacturing Germany GmbH and Co KG filed Critical Parker Hannifin Manufacturing Germany GmbH and Co KG
Publication of EP2541073A2 publication Critical patent/EP2541073A2/en
Publication of EP2541073A3 publication Critical patent/EP2541073A3/en
Application granted granted Critical
Publication of EP2541073B1 publication Critical patent/EP2541073B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston

Abstract

Ein Pneumatikzylinder mit einem Zylindergehäuse und einem Zylinderkolben der jeweils über wechselweise als Druckleitung und Entlüftungsleitung wirkende Anschlussleitung mit einem Arbeitsdruck beaufschlagt ist und auf seiner jeweils gegenüberliegenden Seite die mit einem geringeren Entlüftungsdruck anstehende Luft verdrängt, wobei an zumindest einem Ende des Zylinderkolbenweges eine Dämpfungsanordnung mit einem Dämpfungsraum angeordnet ist, welcher zur Endlagendämpfung des Zylinderkolbens über einen Entlüftungsweg mit einem darin eingeschalteten Steuerventil gesteuert entlüftet wird, ist dadurch gekennzeichnet, dass der Steuerraum (25) des Steuerventils (21) mittels einer Leitungsverbindung (30; 50, 45) mit einem unter Entlüftungsdruck stehenden Bereich der Dämpfungsanordnung verbunden und in die Leitungsverbindung (30; 50, 45) eine Schließanordnung (26) mit einem gesteuerten Schließelement (28) eingeschaltet ist, mittels dessen der im Steuerraum (25) des Steuerventils (21) bei dem durch einen Druckanstieg im Dämpfungsraum (20) charakterisierten Dämpfungsbeginn jeweils aktuell anstehende Entlüftungsdruck im Steuerraum (25) einschließbar ist und als dergestalt fixierter Steuerdruck auf den Steuerkolben (23) des Steuerventils (21) wirkt und den Öffnugszeitpunkt des Steuerventils (21) zur Freigabe des Entlüftungsweges festlegt.

Figure imgaf001
A pneumatic cylinder with a cylinder housing and a cylinder piston is acted upon by alternately acting as a pressure line and vent line connecting line with a working pressure and displaced on its respective opposite side pending with a lower venting air, wherein at least one end of Zylinderkolbenweges a damping arrangement with a damping chamber is arranged, which is vented controlled for cushioning the cylinder piston via a vent path with a control valve switched therein is characterized in that the control chamber (25) of the control valve (21) by means of a line connection (30; 50, 45) with a venting pressure A closing arrangement (26) with a controlled closing element (28) is switched on in the line connection (30; 50, 45) by means of which in the control chamber (25) of the control valve (30). 21) in which by a pressure increase in the damping chamber (20) characterized damping start each currently pending venting pressure in the control chamber (25) is lockable and as such fixed control pressure on the control piston (23) of the control valve (21) acts and the Öffnugszeitpunkt the control valve (21) determines the release of the vent path.
Figure imgaf001
EP12171413.3A 2011-06-28 2012-06-11 Pneumatic cylinder with self-adjusting end position dampening Active EP2541073B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011051400A DE102011051400B3 (en) 2011-06-28 2011-06-28 Pneumatic cylinder with self-adjusting cushioning

Publications (3)

Publication Number Publication Date
EP2541073A2 EP2541073A2 (en) 2013-01-02
EP2541073A3 true EP2541073A3 (en) 2016-11-02
EP2541073B1 EP2541073B1 (en) 2020-08-05

Family

ID=46083178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12171413.3A Active EP2541073B1 (en) 2011-06-28 2012-06-11 Pneumatic cylinder with self-adjusting end position dampening

Country Status (3)

Country Link
US (1) US9080584B2 (en)
EP (1) EP2541073B1 (en)
DE (1) DE102011051400B3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016205087A1 (en) * 2015-06-15 2016-12-22 Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Thermoplastic cellulosic fiber granules useful as infill materials for artificial turf
CN109084967A (en) * 2017-06-14 2018-12-25 鸿富锦精密电子(天津)有限公司 Push and pull test device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998054A2 (en) * 2007-05-24 2008-12-03 Hoerbiger Origa Holding AG Pneumatic cylinder with self-adjusting cushioning at the end of stroke and corresponding method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT213677B (en) * 1958-07-23 1961-02-27 Hydraulik Rochlitz Veb Hydraulic damping device on straight piston gears
GB1351958A (en) * 1971-09-14 1974-05-15 Martonair Ltd Pneumatic actuators
DE2326417C3 (en) * 1973-05-24 1980-01-10 Maschinenfabrik Glueckauf Beukenberg Gmbh & Co, 4650 Gelsenkirchen Hydraulic cylinder with end position cushioning
JP2598210B2 (en) * 1992-12-01 1997-04-09 エスエムシー株式会社 Cylinder device
FR2781016B1 (en) * 1998-07-08 2002-03-08 Aro CYLINDER WITH PRECOURSE OF APPROACH AND WORK RACE, FOR THE HANDLING OF A TOOL
US6612410B1 (en) * 2001-10-17 2003-09-02 Yevgeny Antonovsky High frequency shock absorber and accelerator
DE102006041707B4 (en) * 2006-05-10 2009-01-02 Tünkers Maschinenbau Gmbh Piston-cylinder unit (working cylinder) for clamping, and / or pressing, and / or joining, and / or punching, and / or embossing, and / or punching and / or welding, for example, with the interposition of a toggle joint arrangement
US8850952B2 (en) * 2009-02-23 2014-10-07 David E. Albrecht Cylinder phaser valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998054A2 (en) * 2007-05-24 2008-12-03 Hoerbiger Origa Holding AG Pneumatic cylinder with self-adjusting cushioning at the end of stroke and corresponding method

Also Published As

Publication number Publication date
EP2541073B1 (en) 2020-08-05
US20130001031A1 (en) 2013-01-03
EP2541073A2 (en) 2013-01-02
US9080584B2 (en) 2015-07-14
DE102011051400B3 (en) 2012-06-06

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