EP2039944A3 - Linear actuator, in particular cylinder-piston unit with locking device - Google Patents

Linear actuator, in particular cylinder-piston unit with locking device Download PDF

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Publication number
EP2039944A3
EP2039944A3 EP08005441A EP08005441A EP2039944A3 EP 2039944 A3 EP2039944 A3 EP 2039944A3 EP 08005441 A EP08005441 A EP 08005441A EP 08005441 A EP08005441 A EP 08005441A EP 2039944 A3 EP2039944 A3 EP 2039944A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
threaded spindle
end housing
locking
piston unit
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
EP08005441A
Other languages
German (de)
French (fr)
Other versions
EP2039944B1 (en
EP2039944A2 (en
Inventor
Martin Brantner
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.)
Weber Hydraulik GmbH Austria
Original Assignee
Weber Hydraulik GmbH Austria
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 Weber Hydraulik GmbH Austria filed Critical Weber Hydraulik GmbH Austria
Publication of EP2039944A2 publication Critical patent/EP2039944A2/en
Publication of EP2039944A3 publication Critical patent/EP2039944A3/en
Application granted granted Critical
Publication of EP2039944B1 publication Critical patent/EP2039944B1/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
    • F15B15/26—Locking mechanisms
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads
    • F15B15/264—Screw mechanisms attached to the piston

Abstract

Die Erfindung betrifft einen Linearverstellantrieb (1), insbesondere eine mit einem Druckmedium beaufschlagbare, doppeltwirkende Zylinder-Kolben-Einheit (2), umfassend einen Zylinderkörper (4), eine im Inneren des Zylinderkörpers (4) entlang einer Zylinderlängsachse (22) verstellbare, verdrehgesicherte Kolbenanordnung (20), eine kolbenbodenseitig in die Kolbenanordnung (20) ragende und mit dieser zusammenwirkende Gewindespindel (28), wobei die Gewindespindel (28) drehbar in einem Endgehäuse (9) des Zylinderkörpers (4) gelagert ist, sowie ein im Endgehäuse (9) angeordnetes Sperrelement (35) das in Sperrstellung in zumindest eine am Umfang der Gewindespindel (28) bzw. am Umfang einer mit dieser drehfest verbundenen Sperrhülse (33) angeordnete Sperrausnehmung (40) ragt. Dabei ist das Sperrelement (35) durch einen rotationssymmetrischen Sperrkörper (36) gebildet und ein den Sperrkörper (36) aufnehmender Bewegungsraum (38) ausgebildet, der von einer Betätigungsfläche (44) eines zwischen einer Lösestellung (47) und einer Sperrstellung (45) verstellbar im Endgehäuse (9) gelagerten Betätigungselements (41) bezogen auf die Zylinderlängsachse (22) in Radialrichtung (43) veränderbar ist.

Figure imgaf001
The invention relates to a Linearverstellantrieb (1), in particular a pressurizable with a pressure medium, double-acting cylinder-piston unit (2) comprising a cylinder body (4), in the interior of the cylinder body (4) along a cylinder longitudinal axis (22) adjustable, non-rotating Piston assembly (20), a piston head on the piston assembly (20) protruding and cooperating with this threaded spindle (28), wherein the threaded spindle (28) is rotatably mounted in an end housing (9) of the cylinder body (4), as well as in the end housing (9 ) arranged blocking element (35) in the blocking position in at least one on the circumference of the threaded spindle (28) or on the circumference of a rotatably connected to this locking sleeve (33) arranged Sperrausnehmung (40) protrudes. In this case, the blocking element (35) by a rotationally symmetrical locking body (36) is formed and the locking body (36) receiving movement space (38) formed by an actuating surface (44) one between a release position (47) and a locking position (45) adjustable in the end housing (9) mounted actuating element (41) relative to the cylinder longitudinal axis (22) in the radial direction (43) is variable.
Figure imgaf001
EP20080005441 2007-09-21 2008-03-22 Linear actuator, in particular cylinder-piston unit with locking device Active EP2039944B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT14882007A AT505793B1 (en) 2007-09-21 2007-09-21 CYLINDER PISTON UNIT WITH LOCKING ARRANGEMENT

Publications (3)

Publication Number Publication Date
EP2039944A2 EP2039944A2 (en) 2009-03-25
EP2039944A3 true EP2039944A3 (en) 2012-09-26
EP2039944B1 EP2039944B1 (en) 2013-10-09

Family

ID=40229969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080005441 Active EP2039944B1 (en) 2007-09-21 2008-03-22 Linear actuator, in particular cylinder-piston unit with locking device

Country Status (2)

Country Link
EP (1) EP2039944B1 (en)
AT (1) AT505793B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016119251A1 (en) * 2016-10-10 2018-04-12 Fbr Facondrehteile Gmbh Hydromechanical locking cylinder and hydraulic control system for its operation
CN110925267B (en) * 2020-01-07 2021-08-17 长春工业大学 Screw rod locking type antifriction drive-type linear positioning cylinder and control method thereof
CN111903441B (en) * 2020-06-03 2022-10-28 江苏中装建设有限公司 Sand-fixing grass planting device
CN115199680B (en) * 2022-07-08 2024-03-19 潍柴动力股份有限公司 Forced brake release device and method for walking motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782766A (en) * 1954-01-05 1957-02-26 Gen Motors Corp Actuator locking means
US2970573A (en) * 1959-02-18 1961-02-07 Gen Motors Corp Actuator with stroke end locks
EP1106841A2 (en) * 1999-12-07 2001-06-13 Weber-Hydraulik GmbH Linear positioning drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782766A (en) * 1954-01-05 1957-02-26 Gen Motors Corp Actuator locking means
US2970573A (en) * 1959-02-18 1961-02-07 Gen Motors Corp Actuator with stroke end locks
EP1106841A2 (en) * 1999-12-07 2001-06-13 Weber-Hydraulik GmbH Linear positioning drive

Also Published As

Publication number Publication date
AT505793A1 (en) 2009-04-15
AT505793B1 (en) 2010-03-15
EP2039944B1 (en) 2013-10-09
EP2039944A2 (en) 2009-03-25

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