EP1803943A3 - Fluid actuated working cylinder with mechanical position locking in a pressureless state - Google Patents

Fluid actuated working cylinder with mechanical position locking in a pressureless state Download PDF

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Publication number
EP1803943A3
EP1803943A3 EP06022101A EP06022101A EP1803943A3 EP 1803943 A3 EP1803943 A3 EP 1803943A3 EP 06022101 A EP06022101 A EP 06022101A EP 06022101 A EP06022101 A EP 06022101A EP 1803943 A3 EP1803943 A3 EP 1803943A3
Authority
EP
European Patent Office
Prior art keywords
working cylinder
position locking
fluid actuated
mechanical position
pressureless state
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.)
Withdrawn
Application number
EP06022101A
Other languages
German (de)
French (fr)
Other versions
EP1803943A2 (en
Inventor
Josef Bütert
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.)
Buemach Engineering International BV
Original Assignee
Buemach Engineering International BV
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 Buemach Engineering International BV filed Critical Buemach Engineering International BV
Publication of EP1803943A2 publication Critical patent/EP1803943A2/en
Publication of EP1803943A3 publication Critical patent/EP1803943A3/en
Withdrawn legal-status Critical Current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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads
    • F15B15/264—Screw mechanisms attached to the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Es wird ein Arbeitszylinder mit mechanischer Wegsperrung im drucklosen Zustand beschrieben, der bei Druckausfall und Ansteuerung einer bestimmten Lage, exakt in der vorgegebenen Position sperrt, eine hohen Wirkungsgrad aufweist sowie günstig herzustellen ist.It is a working cylinder with mechanical path blocking in the unpressurized state described, which locks in the event of pressure failure and control of a particular location, exactly in the predetermined position, has a high efficiency and is inexpensive to manufacture.

Erfindungsgemäß ist im Ablaufkanal für ein Fluid aus einem Kolbenraum (31) ein vorgespanntes Drosselventil (38) angeordnet, dessen Vorspannung in Abhängigkeit von der auf eine Kolbenstange (4) einwirkenden Kraft so groß gewählt wird, dass das Fluid aus einem Sperrkolbenraum (23) des Sperrsystems wesentlich schneller abströmt als aus dem Kolbenraum (31).

Figure imgaf001
According to the invention, a biased throttle valve (38) is arranged in the discharge channel for a fluid from a piston chamber (31), the bias of which is selected to be so great in dependence on the force acting on a piston rod (4) that the fluid consists of a blocking piston space (23) of the Locking system flows much faster than from the piston chamber (31).
Figure imgaf001
EP06022101A 2005-12-29 2006-10-21 Fluid actuated working cylinder with mechanical position locking in a pressureless state Withdrawn EP1803943A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520020365 DE202005020365U1 (en) 2005-12-29 2005-12-29 Pressure-medium-operated working cylinder with mechanical path blocking in the unpressurized state

Publications (2)

Publication Number Publication Date
EP1803943A2 EP1803943A2 (en) 2007-07-04
EP1803943A3 true EP1803943A3 (en) 2009-04-08

Family

ID=36012296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06022101A Withdrawn EP1803943A3 (en) 2005-12-29 2006-10-21 Fluid actuated working cylinder with mechanical position locking in a pressureless state

Country Status (2)

Country Link
EP (1) EP1803943A3 (en)
DE (1) DE202005020365U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500501B (en) * 2014-12-05 2017-01-25 四川凌峰航空液压机械有限公司 Hydraulic floatingsnap ring lock
CN104791327B (en) * 2015-04-02 2017-01-11 中航飞机股份有限公司西安飞机分公司 Emergency unlocking device for steel ball lock structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106841A2 (en) * 1999-12-07 2001-06-13 Weber-Hydraulik GmbH Linear positioning drive
EP1170512A1 (en) * 2000-07-06 2002-01-09 Bümach Engineering International B.V. Fluid pressure actuator with mechanical locking device when unpressurized
DE202004009302U1 (en) * 2004-06-11 2004-08-26 Bümach Engineering International B.V. Pressurized cylinder with mechanical travel lock in the depressurized state
EP1538343A2 (en) * 2003-12-04 2005-06-08 Neumeister Hydraulik GmbH Locking cylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106841A2 (en) * 1999-12-07 2001-06-13 Weber-Hydraulik GmbH Linear positioning drive
EP1170512A1 (en) * 2000-07-06 2002-01-09 Bümach Engineering International B.V. Fluid pressure actuator with mechanical locking device when unpressurized
EP1538343A2 (en) * 2003-12-04 2005-06-08 Neumeister Hydraulik GmbH Locking cylinder
DE202004009302U1 (en) * 2004-06-11 2004-08-26 Bümach Engineering International B.V. Pressurized cylinder with mechanical travel lock in the depressurized state

Also Published As

Publication number Publication date
EP1803943A2 (en) 2007-07-04
DE202005020365U1 (en) 2006-02-23

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