DE3416463A1 - MULTI-STROKE ACTUATING CYLINDER - Google Patents

MULTI-STROKE ACTUATING CYLINDER

Info

Publication number
DE3416463A1
DE3416463A1 DE19843416463 DE3416463A DE3416463A1 DE 3416463 A1 DE3416463 A1 DE 3416463A1 DE 19843416463 DE19843416463 DE 19843416463 DE 3416463 A DE3416463 A DE 3416463A DE 3416463 A1 DE3416463 A1 DE 3416463A1
Authority
DE
Germany
Prior art keywords
cylinder
inner cylinder
piston
outer cylinder
stroke adjusting
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Withdrawn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
DE19843416463
Other languages
German (de)
Inventor
Peter 7117 Bretzfeld Herrmann
Thomas 7118 Künzelsau Loest
Edmund 7107 Neckarsulm Volkert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19843416463 priority Critical patent/DE3416463A1/en
Priority to EP19850901986 priority patent/EP0179103A1/en
Priority to PCT/DE1985/000138 priority patent/WO1985005154A1/en
Publication of DE3416463A1 publication Critical patent/DE3416463A1/en
Withdrawn legal-status Critical Current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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

A inner cylinder (2) can slide inside an outer cylinder (1) and its piston rod (4) passes through the front walls (21, 17) of the two cylinders (1, 2).

Description

Beschreibungdescription

Die Erfindung betrifft einen Nehrhub-Stellzylinder unter Verwendung zweier zusammenwirkender, pneumatisch oder hydraulisch betätigter Zylinder, wie sie zum Ansteuern von Schaltelementen von Steuergeräten beispielsweise bei Meßvorrichtungen, Transportvorrichtungen u. dgl. Verwendung finden.The invention relates to a short-stroke adjusting cylinder using two interacting, pneumatically or hydraulically operated cylinders, such as they are used to control switching elements of control devices, for example in measuring devices, Find transport devices and the like. Use.

Bei bekannten Stellzylindern dieser Art sind zwei Zylinder stirnseitig aneinander angeflanscht, so daß bei gleichlangen Zylindern durch die Betätigung der beiden Kolben wahlweise drei Positionen eines Schaltelementes angesteuert werden können.In known actuating cylinders of this type, there are two cylinders on the end face flanged to each other, so that with cylinders of the same length by actuation the two pistons selectively three positions of a switching element can be controlled can.

Ein solcher zwei miteinander fluchtende Zylinder aufweisender Montagebausatz hat jedoch den Nachteil, daß er eine große Länge aufweist, entsprechend große Abmessungen der Steuervorrichtung, ein Widerlager für die eine Kolbenstange, eine ausreichende Unterstützung und sichere Führung des einen der beiden Zylinder erfordert.Such an assembly kit comprising two cylinders in alignment with one another however, it has the disadvantage that it has a great length, correspondingly large dimensions the control device, an abutment for the one piston rod, a sufficient Requires support and safe guidance of one of the two cylinders.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Nachteile durch eine einfachere Bauweise zu vermeiden und bei geringerem Gewicht der Vorrichtung eine höhere Betriebssicherheit und Wartungsfreiheit zu gewährleisten.The invention is therefore based on the object of eliminating these disadvantages to avoid a simpler construction and with a lower weight of the device to ensure a higher level of operational safety and freedom from maintenance.

Diese Aufgabe wird gemäß der Erfindung.durch eine Konstruktion erzielt, die die im Kennzeichen des Anspruchs 1 angegebenen Merkmale aufweist. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Mehrhub-Stellzylinders ergeben sich aus den Unteransprüchen.This object is achieved according to the invention by a construction which has the features specified in the characterizing part of claim 1. Beneficial Refinements of the multi-stroke actuating cylinder according to the invention result from the Subclaims.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes in schematischer Weise mit in einer Zwischenstellung befindlichem Innenzylinder dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention in a schematic way with in one Intermediate position Inner cylinder shown.

Die Vorrichtung besteht aus dem Außenzylinder 1 und dem in diesem verschiebbaren, als Kolben wirkenden Innenzylinder 2. Der Außenzylinder 1 weist einen stirnseitigen Abschluß mittels einer in die Wandung des Außenzylinders 1 eingeschraubten oder sonstwie mit diesem luftdicht verbundenen Stirnplatte 11 auf. In der Wandung des Außenzylinders 1 sind vier Bohrungen 12,13,14,15 zur Beaufschlagung des Hubraums mit einem Druckmedium vorgesehen, von denen die beiden äußeren Bohrungen 12 und 15 nahe an der Stirnplatte 11 bzw. der gegenüberliegenden Stirnwand 17 angeordnet sind. Die beiden mittleren Bohrungen 13 und 14 sind so angeordnet, daß über diese der Kolben 3 des Innenzylinders 2 über in der Wand des Innenzylinders 2 vorgesehene Bohrungen 23 und 24 mit dem Druckmedium beaufschlagt werden kann. Diese beiden Bohrungen 23 und 24 sind an den Enden des Hubraums des Innenzylinders 2 in unmittelbarer Nähe der in die Wandung des Innenzylinders 2 eingesetzten Stirnplatte 21 bzw. der dieser Stirnplatte gegenüberliegenden Stirnwand 22 angeordnet. Am Umfang des Innenzylinders 2 ist eine Längsaussparung 25 vorgesehen, über die die Bohrung 14 des Außenzylinders 1 mit der Bohrung 24 des Innenzylinders 2 in Verbindung gebracht werden kann. Die Stirnplatte 21 ist luftdicht in die Wandung des Innenzylinders 2 eingesetzt und wird mittels eines ein Außengewinde aufweisenden Halterings gegen eine an der Innenwand des Innenzylinders 2 vorgesehene Ringschulter gepreßt. Zur Abdichtung der einzelnen Räume bzw.The device consists of the outer cylinder 1 and the one in this displaceable inner cylinder 2 acting as a piston an end closure by means of a screwed into the wall of the outer cylinder 1 or in some other way connected to this airtight end plate 11. In the wall of the outer cylinder 1 are four bores 12,13,14,15 for acting on the displacement provided with a pressure medium, of which the two outer bores 12 and 15 arranged close to the end plate 11 or the opposite end wall 17 are. The two middle bores 13 and 14 are arranged so that over this the piston 3 of the inner cylinder 2 via provided in the wall of the inner cylinder 2 Bores 23 and 24 can be acted upon with the pressure medium. These two holes 23 and 24 are in close proximity at the ends of the displacement of the inner cylinder 2 the end plate 21 inserted into the wall of the inner cylinder 2 or that of the latter End plate opposite end wall 22 is arranged. On the circumference of the inner cylinder 2, a longitudinal recess 25 is provided through which the bore 14 of the outer cylinder 1 can be brought into connection with the bore 24 of the inner cylinder 2. the End plate 21 is inserted airtight into the wall of the inner cylinder 2 and is by means of a retaining ring having an external thread against one on the inner wall of the inner cylinder 2 provided annular shoulder pressed. To seal the individual Rooms or

Xanäle sind am Außenumfang des Innenzylinders 2, des Kolbens 3 und der Stirnplatte 21 in Ringnuten eingesetzte Dichtringe angeordnet. Die Stirnplatte 21 weist eine axiale Bohrung für den Durchtritt der Kolbenstange 4 und einen gegen diese anliegenden Dichtring auf. Die Kolbenstange 4 wird des weiteren in einer axialen Bohrung der Stirnwand 17 des Außenzylinders 1 geführt., in die ebenfalls ein die Kolbenstange 4 umschließender Dichtring eingesetzt ist und die einen mit einem Außengewinde versehenen Zapfen 16 aufweist, mittels dessen der Abstand des Außenzylinders 1 von den mittels der Kolbenstange 4 anzusteuernden Positionen fixiert wird.X channels are on the outer circumference of the inner cylinder 2, the piston 3 and the end plate 21 arranged in annular grooves used sealing rings. The faceplate 21 has an axial bore for the passage of the piston rod 4 and one against this adjoining sealing ring. The piston rod 4 is also in an axial Bore of the end wall 17 of the outer cylinder 1 out., In which also a Piston rod 4 enclosing sealing ring is used and the one provided with an external thread Has pin 16, by means of which the distance of the outer cylinder 1 from the means the piston rod 4 positions to be controlled is fixed.

Durch die Kombination zweier miteinander gekoppelter erfindungsgemäßer Mehrhub-Stellzylinder, die wahlweise Außenzylinder 1 oder Innenzylinder 2 unterschiedlicher Länge und/oder unterschiedliche Hübe der Innenzylinder 2 oder der Kolben 3 aufweisen, können bis zu 16 Positionen angesteuert werde.By combining two coupled to one another according to the invention Multi-stroke actuating cylinder, the optional outer cylinder 1 or inner cylinder 2 different Length and / or different strokes of the inner cylinder 2 or the piston 3, can be controlled up to 16 positions.

- L e e r s e i t e -- L e r s e i t e -

Claims (6)

Mehrhub-Stellzylinder Patentansprüche Mehrhub-Stellzylinder unter Verwendung zweier zusammenwirkender, pneumatisch oder hydraulisch betätigter Zylinder, d a d u r c h g e k e n n z e i c h n e t , daß in einem Außenzylinder (1) ein als Kolben wirkender Innenzylinder (2) mit einem Kolben (3) angeordnet ist, dessen Kolbenstange (4) eine Stirnwand (17) des Außenzylinders (1) durchsetzt, und in der Wandung des Außenzylinders (1) und des Innenzylinders (2) Bohrungen (12,13,14,15,23,24) sowie in der Wandung des Innenzylinders (2) eine mit einer Bohrung (24) des Innenzylinders (2) und einer Bohrung (14) des Außenzylinders (1) kommunizierende Aussparung (25) vorgesehen ist. Multi-stroke adjusting cylinder claims multi-stroke adjusting cylinder under Use of two interacting, pneumatically or hydraulically operated cylinders, d a d u r c h e k e n n n z e i c h n e t that in an outer cylinder (1) a as Piston-acting inner cylinder (2) is arranged with a piston (3) whose piston rod (4) an end wall (17) of the outer cylinder (1) penetrates, and in the wall of the Outer cylinder (1) and the inner cylinder (2) bores (12,13,14,15,23,24) and in the wall of the inner cylinder (2) one with a bore (24) of the inner cylinder (2) and a bore (14) of the outer cylinder (1) communicating recess (25) is provided. 2. Mehrhub-Stellzylinder nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß mindestens eine Stirnwand (11,17) des Außenzylinders (1) und eine Stirnwand (21,22) des Innenzylinders lösbar mit dem betreffenden Zylinder (1,2) verbunden ist. 2. Multi-stroke actuating cylinder according to claim 1, d a d u r c h g e k e n n z e i c h n e t that at least one end wall (11, 17) of the outer cylinder (1) and an end wall (21,22) of the inner cylinder releasably with the relevant Cylinder (1,2) is connected. 3. Mehrhub-Stellzylinder nach den Ansprüchen 1 und 2, d a -d u r c h g e k e n n z e i c h n e t , daß in Ringnuten am Umfang des Innenzylinders (2) und des Kolbens (3) Dichtringe angeordnet sind.3. Multi-stroke adjusting cylinder according to claims 1 and 2, d a -d u r c h e k e n n n z e i c h n e t that in annular grooves on the circumference of the inner cylinder (2) and the piston (3) sealing rings are arranged. 4. Mehrhub-Stellzylinder nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , daß die vom Kolben (3) durchsetzte Stirnwand (17) des Außenzylinders (1) einen den Kolben (3) umschließenden Zapfen (16) mit einem Außengewinde oder einem Flansch aufweist.4. Multi-stroke adjusting cylinder according to one of claims 1 to 3, d a d u It is noted that the end wall penetrated by the piston (3) (17) of the outer cylinder (1) with a pin (16) surrounding the piston (3) has an external thread or a flange. 5. Mehrhub-Stellzylinder nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e t , daß der Außenzylinder (1) und der Innenzylinder (2) je eine an den beiden Stirnwänden (11,17:21,22) gelegene Bohrung (12,15: 23,24) und der Außenzylinder (1) zwei in der Mitte des Zylinders gelegene Bohrungen (13,14) aufweist, und an den Stirnflächen des Innenzylinders (2) und des Kolbens (3) die Druckbeaufschlagung ermöglichende Vorsprünge vorgesehen sind.5. Multi-stroke adjusting cylinder according to one of claims 1 to 4, d a d u It is noted that the outer cylinder (1) and the inner cylinder (2) one hole (12.15: 23.24) on each of the two end walls (11.17: 21.22) and the outer cylinder (1) has two bores (13, 14) located in the middle of the cylinder has, and on the end faces of the inner cylinder (2) and the piston (3) the Pressurization enabling projections are provided. 6. Mehrhub-Stellzylinder nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t , daß die Hübe des Innenzylinders (2) und des Kolbens (3) ungleich groß sind.6. Multi-stroke adjusting cylinder according to one of claims 1 to 5, d a d u r c h g e k e n n n n e i c h n e t that the strokes of the inner cylinder (2) and the Pistons (3) are of different sizes.
DE19843416463 1984-05-04 1984-05-04 MULTI-STROKE ACTUATING CYLINDER Withdrawn DE3416463A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19843416463 DE3416463A1 (en) 1984-05-04 1984-05-04 MULTI-STROKE ACTUATING CYLINDER
EP19850901986 EP0179103A1 (en) 1984-05-04 1985-05-03 Three-position linear actuator
PCT/DE1985/000138 WO1985005154A1 (en) 1984-05-04 1985-05-03 Multiple travel jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843416463 DE3416463A1 (en) 1984-05-04 1984-05-04 MULTI-STROKE ACTUATING CYLINDER

Publications (1)

Publication Number Publication Date
DE3416463A1 true DE3416463A1 (en) 1985-11-07

Family

ID=6234925

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843416463 Withdrawn DE3416463A1 (en) 1984-05-04 1984-05-04 MULTI-STROKE ACTUATING CYLINDER

Country Status (3)

Country Link
EP (1) EP0179103A1 (en)
DE (1) DE3416463A1 (en)
WO (1) WO1985005154A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809165A1 (en) * 1988-03-18 1989-09-28 Rexroth Mannesmann Gmbh Device for feeding pressure medium to a hydraulic drive
DE3809461A1 (en) * 1988-03-21 1989-10-12 Mueller Hans Werner Double-stroke cylinder
DE4230781A1 (en) * 1992-09-15 1994-03-17 Christian Dipl Ing Boehner Linear module for handling systems with function unit coupling flange plates - has additional cylinder(s) with separate pressure supply, coacting with main cylinder for path division
DE4400743A1 (en) * 1994-01-13 1995-07-20 Fraunhofer Ges Forschung Pneumatic or hydraulic piston cylinder
DE19912906A1 (en) * 1999-03-22 2000-12-14 Guenter W Klemm Hydraulic actuator, especially for selection shaft of three-step planetary gear; has first piston moving in guide formed inside second cylindrical piston, formed as hydraulic cylinder
WO2007009077A2 (en) * 2005-07-13 2007-01-18 Swagelok Company Method and arrangement for actuation
DE102007020482A1 (en) * 2007-04-27 2008-10-30 Gerhard Dücker GmbH & Co. KG Landmaschinenfabrik Mowing or cutting apparatus for attachment to a vehicle has hydraulic cylinder with additional pressure connection which can be closed by piston
WO2011157462A1 (en) * 2010-06-14 2011-12-22 Sms Siemag Ag Piston-cylinder unit in the form of a switchable stepped cylinder
EP3081820A1 (en) * 2015-04-16 2016-10-19 Messier-Dowty Limited Hydraulic actuator and method of producing the same
DE102010035233B4 (en) 2009-08-28 2024-04-11 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Piston actuator arrangement

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
SE504248C2 (en) * 1995-04-26 1996-12-16 Scania Cv Ab Gear maneuvering device

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CH407759A (en) * 1963-10-17 1966-02-15 Schweizerische Lokomotiv Multiple actuating device actuated by pressure medium for influencing a controller, in particular for influencing the speed of the engine controller in vehicle diesel engines
DE1293031B (en) * 1961-03-23 1969-04-17 Ex Cell O Corp Multi-stage hydraulic adjusting device
DE2321820A1 (en) * 1973-01-31 1974-08-08 Tokico Ltd MULTI-STAGE CYLINDER

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Publication number Priority date Publication date Assignee Title
US2831464A (en) * 1954-02-19 1958-04-22 Gen Motors Corp Fluid pressure motor
DE1855335U (en) * 1960-09-17 1962-07-19 Knorr Bremse Gmbh THREE-POSITION CYLINDER.
DE1293031B (en) * 1961-03-23 1969-04-17 Ex Cell O Corp Multi-stage hydraulic adjusting device
CH407759A (en) * 1963-10-17 1966-02-15 Schweizerische Lokomotiv Multiple actuating device actuated by pressure medium for influencing a controller, in particular for influencing the speed of the engine controller in vehicle diesel engines
DE2321820A1 (en) * 1973-01-31 1974-08-08 Tokico Ltd MULTI-STAGE CYLINDER

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809165A1 (en) * 1988-03-18 1989-09-28 Rexroth Mannesmann Gmbh Device for feeding pressure medium to a hydraulic drive
DE3809461A1 (en) * 1988-03-21 1989-10-12 Mueller Hans Werner Double-stroke cylinder
DE4230781A1 (en) * 1992-09-15 1994-03-17 Christian Dipl Ing Boehner Linear module for handling systems with function unit coupling flange plates - has additional cylinder(s) with separate pressure supply, coacting with main cylinder for path division
DE4400743A1 (en) * 1994-01-13 1995-07-20 Fraunhofer Ges Forschung Pneumatic or hydraulic piston cylinder
DE4400743C2 (en) * 1994-01-13 1998-02-19 Fraunhofer Ges Forschung Pneumatically or hydraulically operated cylinder
DE19912906B4 (en) * 1999-03-22 2005-06-16 Klemm, Günter W., Prof. Dr. Hydraulic actuator
DE19912906A1 (en) * 1999-03-22 2000-12-14 Guenter W Klemm Hydraulic actuator, especially for selection shaft of three-step planetary gear; has first piston moving in guide formed inside second cylindrical piston, formed as hydraulic cylinder
WO2007009077A2 (en) * 2005-07-13 2007-01-18 Swagelok Company Method and arrangement for actuation
WO2007009077A3 (en) * 2005-07-13 2007-05-18 Swagelok Co Method and arrangement for actuation
DE102007020482A1 (en) * 2007-04-27 2008-10-30 Gerhard Dücker GmbH & Co. KG Landmaschinenfabrik Mowing or cutting apparatus for attachment to a vehicle has hydraulic cylinder with additional pressure connection which can be closed by piston
DE102007020482B4 (en) * 2007-04-27 2016-02-25 Gerhard Dücker GmbH & Co. KG Landmaschinenfabrik Mowing and / or cutting device
DE102010035233B4 (en) 2009-08-28 2024-04-11 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Piston actuator arrangement
WO2011157462A1 (en) * 2010-06-14 2011-12-22 Sms Siemag Ag Piston-cylinder unit in the form of a switchable stepped cylinder
EP3081820A1 (en) * 2015-04-16 2016-10-19 Messier-Dowty Limited Hydraulic actuator and method of producing the same
US10100848B2 (en) 2015-04-16 2018-10-16 Safran Landing Systems Uk Ltd Hydraulic actuator and method of producing the same

Also Published As

Publication number Publication date
WO1985005154A1 (en) 1985-11-21
EP0179103A1 (en) 1986-04-30

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