EP1176319A2 - Hydraulic cylinder - Google Patents

Hydraulic cylinder Download PDF

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Publication number
EP1176319A2
EP1176319A2 EP01890197A EP01890197A EP1176319A2 EP 1176319 A2 EP1176319 A2 EP 1176319A2 EP 01890197 A EP01890197 A EP 01890197A EP 01890197 A EP01890197 A EP 01890197A EP 1176319 A2 EP1176319 A2 EP 1176319A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
pressure medium
pressure
functional block
base
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
EP01890197A
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German (de)
French (fr)
Other versions
EP1176319B1 (en
EP1176319A3 (en
Inventor
Georg Strobel
Josef Dünzinger
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.)
Hoerbiger Micro Fluid GmbH
Original Assignee
Knapp Micro Fluid GmbH
Hoerbiger Micro Fluid 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.)
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Publication date
Application filed by Knapp Micro Fluid GmbH, Hoerbiger Micro Fluid GmbH filed Critical Knapp Micro Fluid GmbH
Priority to AT01890197T priority Critical patent/ATE296962T1/en
Publication of EP1176319A2 publication Critical patent/EP1176319A2/en
Publication of EP1176319A3 publication Critical patent/EP1176319A3/en
Application granted granted Critical
Publication of EP1176319B1 publication Critical patent/EP1176319B1/en
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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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps

Definitions

  • the invention relates to a pressure medium cylinder with a piston rod led out on one side, whose cylinder bottom, the cylinder tube on the piston side, is a fastening element and an attached functional block with functional elements, for example connections, Valves, accumulators or the like, carries.
  • Such cylinders are known for a wide variety of applications and allow simple and compact design a safe function and the provision of wide Limits of variable strokes or forces. Especially for safety-related applications it is often desirable or necessary that at least individual functional elements the control of such cylinders immediately and without hindrance or increased risk performing lines are arranged on the cylinder itself. Apart from one the overall construction and naturally also assembly and maintenance complicating arrangement such functional elements in one piece with or in the cylinder base, cover or tube, In this context, arrangements have proven themselves above all in which Functional units combined in blocks on the cylinder base or in the area of the cylinder bottom are attached. These function blocks are accordingly to machined connection surfaces screwed sealed, the required pressure medium connections via matching mouths of the corresponding lines the interacting pads are made.
  • Pressure medium cylinders of the type mentioned are used, for example, for so-called cylinder storage units used as for personal security or personal restraint in rides and the like in connection with safety bars or the like Elements are used.
  • cylinder storage units used as for personal security or personal restraint in rides and the like in connection with safety bars or the like Elements are used.
  • the negligible in contrast to mechanical systems Wear contributes to increased safety. Opening the safety bar takes place during the closing process in a pressure accumulator on the function block stored energy, with several units used per person for safety can be.
  • the object of the present invention is to provide a pressure medium cylinder mentioned type to improve so that the disadvantages of the known arrangements mentioned be avoided and in particular the arrangement and attachment of the patch Function blocks is improved.
  • the cylinder bottom at least has a cylindrical outer connection area in which the to the work rooms leading pressure medium lines open to the outside and onto which the function block a sealed through hole into which the pressure medium lines of the functional elements open, attached and fastened.
  • the cylinder bottom is sealed as a whole coaxial with the cylinder barrel connected, separate rotating part is executed, compared to the manufacture of the cylinder bottom the previously required milled parts significantly simplified.
  • the pressure medium lines in the through hole of the function block and / or at the outer connection area of the cylinder base lead to a further preferred Embodiment of the invention in circumferential ring recesses, which is very simple an angular freedom in the positioning of the functional block relative to the cylinder base or to the pressure cylinder results. If the fastener on the cylinder bottom For example, it defines a defined rotational position of the cylinder, it is with this embodiment still possible, the function block for this at any angle on the cylindrical To fix the connection area of the cylinder bottom twisted, which for many applications is an advantage.
  • the cylinder base is sealed in the cylinder tube screwed in, which simplifies manufacture and assembly and not least because of the above-described possibility of angularly offset mounting of the functional block also results in no positioning problems of the parts relative to one another.
  • the fastening element for the pressure medium cylinder is further preferred Embodiment of the invention attached to the outside of the cylinder base and preferably formed by a screwed-in swivel eye. This also makes production easier and assembly of the cylinder base or the pressure medium cylinder as a whole.
  • the attached function block by means of a screwed onto the cylinder base from the outside Fastening nut is attached. This gives a very easy way to secure attachment of the functional block, with the possibility of those mentioned above subsequent attachment of a larger swivel eye, for example, is not is affected.
  • Fig. 1 shows a partial Top view
  • Fig. 2 shows a section along the line II-II in Fig. 1 on a reduced scale
  • Fig. 3 shows the detail III of Fig. 2 on a larger scale, a pressure cylinder or one Cylinder storage unit.
  • a linear pressure medium cylinder with a piston rod led out on one side is shown 1, the cylinder bottom 3 closing the cylinder tube 3 on the piston side a fastening element 4 and an attached function block 5 with functional elements, for example Connections 6, 7, a pressure accumulator 8, a valve 9 or the like, carries.
  • Such pressure medium cylinders are used, for example, in the area of personal security or Passenger restraint in rides and the like for operating or holding Safety bars or similar elements are used, the opening of the piston rod 1 or the eye 10 attached to the safety bar (not here further shown) via the during the closing process (when retracting the piston rod 1) energy stored in the pressure accumulator 8 at the function block 5.
  • pressure medium cylinders - with a wide variety of functional elements in or on the function block - also for various other applications for example as a working cylinder for actuating device or machine elements, can be used advantageously, whereby according to the immediate arrangement of the functional block the security against leaks or line breaks is increased on the pressure cylinder.
  • the rod-side work space 11 supplied with pressure medium without separately leading pressure medium lines for which a Concentric cavity 12 between outer tube 13 and inner tube 14 of the cylinder tube 2 serves, in the manner mentioned below with the pressure medium lines in the Function block 5 on the one hand and via holes 15 in a cover-side guide element 16 can be acted upon with pressure medium or relieved of it. This results in a total a very compact and in the area of the pressure cylinder itself without external Arrangement with pressure medium lines that meets the highest safety requirements.
  • the cylinder base 3 has a graded here cylindrical outer connection area 17, in which the to the work rooms 11 (rod side) and 18 (piston side) lead pressure medium lines 19, 20 to the outside open and on which the functional block 5 with a sealed through hole 21, into which the pressure medium lines of the functional elements 6, not shown further here to 9 open, placed and fastened by means of a union nut 22.
  • the cylinder bottom 3 is designed overall as a separate rotating part which is coaxial with the cylinder tube 2 sealed by means of an annular seal 23 and screwed into the outer tube 13 of the cylinder tube 3 and is sealed at a front shoulder 24 via a further ring seal 25 also carries the inner tube 14.
  • the fastening element 4 is screwed in Swivel eye trained and fixed with a locked nut 29, according to the here larger diameter of the swivel eye, the union nut 22 for fastening or Fixing the functional block 5 on the cylinder base 3 before screwing in the Swivel eyes must at least already be put on - an angular adjustment of the Function blocks 5 with subsequent fixation by tightening the union nut 22 is but also possible with screwed and fastened fastener 4.
  • connection region 17 shown and the through hole 21 for the lateral sealing of the ring recesses 26, 27 provided sealing rings 34 could, if necessary, also other suitable training the cooperating pads are provided, with others Designs of the mouth of the interacting pressure medium lines (oblique or into a side surface of a shoulder or groove) would be possible.
  • the fastener could also 4 also, if necessary, in one piece with the cylinder base 3 or one another type of fixation of the function block 5 on the cylinder base 3 can be selected.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Gripping On Spindles (AREA)

Abstract

The base (3) of the pressure medium cylinder has at least one cylindrical outer connecting section (17) into which run pressure medium lines (19,20) leading to the working chambers (11,18), and upon which is seated and fastened a functional block (5) with a sealed through-hole (21) into which run the pressure medium lines of functional elements (6-9). The cylinder base is altogether constructed as a separate, sealed rotational component co-axial with the cylinder casing (2).

Description

Die Erfindung betrifft einen Druckmittelzylinder mit einseitig herausgeführter Kolbenstange, dessen das Zylinderrohr kolbenseitig abschließender Zylinderboden ein Befestigungselement und einen aufgesetzten Funktionsblock mit Funktionselementen, beispielsweise Anschlüssen, Ventilen, Druckspeichern oder dergleichen, trägt.The invention relates to a pressure medium cylinder with a piston rod led out on one side, whose cylinder bottom, the cylinder tube on the piston side, is a fastening element and an attached functional block with functional elements, for example connections, Valves, accumulators or the like, carries.

Derartige Zylinder sind für verschiedenste Anwendungen bekannt und erlauben bei einfacher und kompakter Bauweise eine sichere Funktion sowie das Bereitstellen von in weiten Grenzen variierbaren Hüben bzw. Kräften. Besonders für sicherheitstechnische Anwendungen ist es oft erwünscht oder erforderlich, daß zumindest einzelne Funktionselemente der Ansteuerung derartiger Zylinder unmittelbar und ohne Behinderung oder erhöhtes Risiko darstellende Leitungen am Zylinder selbst angeordnet sind. Abgesehen von einer den Gesamtaufbau sowie naturgemäß auch Montage und Wartung kompliziert machenden Anordnung derartiger Funktionselemente einstückig mit dem bzw. im Zylinderboden, -deckel oder-rohr, haben sich in diesem Zusammenhang vor allen Dingen Anordnungen bewährt, bei denen blockartig zusammengefaßte Funktionseinheiten auf dem Zylinderboden bzw. im Bereich des Zylinderbodens aufgesetzt sind. Diese Funktionsblöcke sind dazu auf entsprechend zu bearbeitenden Anschlußflächen abgedichtet aufgeschraubt, wobei die erforderlichen Druckmittelverbindungen über zusammenpassende Mündungen der entsprechenden Leitungen an den zusammenwirkenden Anschlußflächen hergestellt werden.Such cylinders are known for a wide variety of applications and allow simple and compact design a safe function and the provision of wide Limits of variable strokes or forces. Especially for safety-related applications it is often desirable or necessary that at least individual functional elements the control of such cylinders immediately and without hindrance or increased risk performing lines are arranged on the cylinder itself. Apart from one the overall construction and naturally also assembly and maintenance complicating arrangement such functional elements in one piece with or in the cylinder base, cover or tube, In this context, arrangements have proven themselves above all in which Functional units combined in blocks on the cylinder base or in the area of the cylinder bottom are attached. These function blocks are accordingly to machined connection surfaces screwed sealed, the required pressure medium connections via matching mouths of the corresponding lines the interacting pads are made.

Druckmittelzylinder der genannten Art werden beispielsweise für sogenannte Zylinder-Speichereinheiten verwendet, wie sie zur Personensicherung bzw. Personenrückhaltung in Fahrgeschäften und dergleichen im Zusammenhang mit Sicherheitsbügeln oder ähnlichen Elementen eingesetzt werden. Im Gegensatz zu früher teilweise verwendeten mechanisch rastenden Systemen kann mit derartigen Druckspeichereinheiten eine stufenlose Bügelverstellung realisiert werden, wobei der im Gegensatz zu mechanischen Systemen vernachlässigbare Verschleiß zur Erhöhung der Sicherheit beiträgt. Das Öffnen des Sicherheitsbügels erfolgt über die während des Schließvorgangs in einem Druckspeicher am Funktionsblock gespeicherte Energie, wobei zur Sicherheit auch noch mehrere Einheiten pro Person eingesetzt werden können.Pressure medium cylinders of the type mentioned are used, for example, for so-called cylinder storage units used as for personal security or personal restraint in rides and the like in connection with safety bars or the like Elements are used. In contrast to previously used mechanically locking systems with such pressure storage units can be continuously adjusted can be realized, the negligible in contrast to mechanical systems Wear contributes to increased safety. Opening the safety bar takes place during the closing process in a pressure accumulator on the function block stored energy, with several units used per person for safety can be.

Ein gewisser Nachteil bei den bisher bekannten Ausführungen von Druckmittelzylindern der eingangs genannten Art ist in der trotz allen Vorteilen relativ aufwendigen und unflexiblen Ausbildung des Anschlusses des Funktionsblocks zu sehen, der auch im Hinblick auf Bauvolumen, Gewicht der Gesamtanordnung und Sicherheit bzw. Festigkeit der Verbindung optimierbar schien.A certain disadvantage in the previously known versions of pressure medium cylinders The type mentioned is relatively complex and inflexible despite all the advantages Training to see the connection of the functional block, which also with regard Construction volume, weight of the overall arrangement and security or strength of the connection seemed optimizable.

Aufgabe der vorliegenden Erfindung ist es, einen Druckmittelzylinder der eingangs genannten Art so zu verbessern, daß die erwähnten Nachteile der bekannten Anordnungen vermieden werden und daß insbesonders die Anordnung und Befestigung des aufgesetzten Funktionsblocks verbessert wird.The object of the present invention is to provide a pressure medium cylinder mentioned type to improve so that the disadvantages of the known arrangements mentioned be avoided and in particular the arrangement and attachment of the patch Function blocks is improved.

Die genannte Aufgabe wird bei einem Druckmittelzylinder der eingangs genannten Art gemäß der vorliegenden Erfindung dadurch gelöst, daß der Zylinderboden zumindest einen zylindrischen äußeren Anschlußbereich aufweist, in welchem die zu den Arbeitsräumen führenden Druckmittelleitungen nach außen münden und auf den der Funktionsblock mit einer abgedichteten Durchgangsbohrung, in welche die Druckmittelleitungen der Funktionselemente münden, aufgesetzt und befestigt ist. Damit ist also der bisher stets einseitig am Zylinder bzw. Zylinderboden vorgesehen gewesene Anschlußbereich auf einen rundumlaufenden, zylindrischen äußeren Anschlußbereich am Zylinderboden erweitert, der in eine entsprechend abgedichtete Durchgangsbohrung des Funktionsblocks eingesteckt und dort befestigt ist, womit sich eine sehr stabile und damit auch sichere Konstruktion ergibt. Etwaige auftretende Kräfte zwischen dem Zylinder bzw. Zylinderboden und dem Funktionsblock werden damit in der Hauptsache direkt formschlüssig zwischen diesen Bauteilen übertragen und nicht wie bisher über Befestigungsschrauben oder ähnliche Elemente an den einseitigen Anschlußbereichen. The above-mentioned object is achieved in the case of a pressure medium cylinder Kind solved according to the present invention in that the cylinder bottom at least has a cylindrical outer connection area in which the to the work rooms leading pressure medium lines open to the outside and onto which the function block a sealed through hole into which the pressure medium lines of the functional elements open, attached and fastened. So that is so far always one-sided Cylinder or cylinder base provided connection area on a circumferential, cylindrical outer connection area on the cylinder base extended into a corresponding sealed through hole of the function block inserted and fastened there is, which results in a very stable and thus also safe construction. any forces occurring between the cylinder or cylinder base and the functional block so that the main thing is to transfer it directly and positively between these components and not as before via fastening screws or similar elements on the one-sided connection areas.

Gemäß einer besonders bevorzugten weiteren Ausgestaltung der Erfindung ist vorgesehen, daß der Zylinderboden insgesamt als mit dem Zylinderrohr koaxialer, abgedichtet verbundener, separater Drehteil ausgeführt ist, was die Herstellung des Zylinderbodens gegenüber den bisher erforderlichen Frästeilen wesentlich vereinfacht.According to a particularly preferred further embodiment of the invention, that the cylinder bottom is sealed as a whole coaxial with the cylinder barrel connected, separate rotating part is executed, compared to the manufacture of the cylinder bottom the previously required milled parts significantly simplified.

Die Druckmittelleitungen in der Durchgangsbohrung des Funktionsblocks und/oder am äußeren Anschlußbereich des Zylinderbodens münden nach einer weiters bevorzugten Ausgestaltung der Erfindung in umlaufende Ringausnehmungen, was auf sehr einfache Weise eine winkelmäßige Freiheit bei der Positionierung des Funktionsblocks relativ zum Zylinderboden bzw. zum Druckmittelzylinder ergibt. Wenn das Befestigungselement am Zylinderboden beispielsweise eine definierte Drehstellung des Zylinder festlegt, ist es mit dieser Ausgestaltung immer noch möglich, den Funktionsblock dazu beliebig winkelmäßig auf dem zylindrischen Anschlußbereich des Zylinderbodens verdreht zu fixieren, was für viele Anwendungen von Vorteil ist.The pressure medium lines in the through hole of the function block and / or at the outer connection area of the cylinder base lead to a further preferred Embodiment of the invention in circumferential ring recesses, which is very simple an angular freedom in the positioning of the functional block relative to the cylinder base or to the pressure cylinder results. If the fastener on the cylinder bottom For example, it defines a defined rotational position of the cylinder, it is with this embodiment still possible, the function block for this at any angle on the cylindrical To fix the connection area of the cylinder bottom twisted, which for many applications is an advantage.

Der Zylinderboden ist in weiterer Ausgestaltung der Erfindung abgedichtet in das Zylinderrohr eingeschraubt, was Herstellung und Montage vereinfacht und nicht zuletzt wegen der oben beschriebenen Möglichkeit der winkelmäßig versetzten Montage des Funktionsblocks auch keine Positionierprobleme der Teile relativ zueinander ergibt.In a further embodiment of the invention, the cylinder base is sealed in the cylinder tube screwed in, which simplifies manufacture and assembly and not least because of the above-described possibility of angularly offset mounting of the functional block also results in no positioning problems of the parts relative to one another.

Das Befestigungselement für den Druckmittelzylinder ist nach einer weiters bevorzugten Ausgestaltung der Erfindung an der Außenseite des Zylinderbodens befestigt und vorzugsweise von einem eingeschraubten Schwenkauge gebildet. Auch dies erleichtert Herstellung und Montage des Zylinderbodens bzw. des Druckmittelzylinders insgesamt.The fastening element for the pressure medium cylinder is further preferred Embodiment of the invention attached to the outside of the cylinder base and preferably formed by a screwed-in swivel eye. This also makes production easier and assembly of the cylinder base or the pressure medium cylinder as a whole.

In weiterer vorteilhafter Ausgestaltung der Erfindung kann vorgesehen sein, daß der aufgesetzte Funktionsblock mittels einer von der Außenseite her auf den Zylinderboden aufgeschraubten Befestigungsmutter befestigt ist. Dies ergibt eine sehr einfache Möglichkeit zur sicheren Befestigung des Funktionsblocks, wobei die Möglichkeit der oben angesprochenen nachträglichen Anbringung eines beispielsweise auch größeren Schwenkauges davon nicht beeinträchtigt wird.In a further advantageous embodiment of the invention it can be provided that the attached function block by means of a screwed onto the cylinder base from the outside Fastening nut is attached. This gives a very easy way to secure attachment of the functional block, with the possibility of those mentioned above subsequent attachment of a larger swivel eye, for example, is not is affected.

Die Erfindung wird im folgenden noch anhand des in der Zeichnung teilweise schematisch dargestellten Ausführungsbeispiels näher erläutert. Fig. 1 zeigt dabei eine teilweise Draufsicht, Fig. 2 einen Schnitt entlang der Linie II-II in Fig. 1 in verkleinertem Maßstab und Fig. 3 das Detail III aus Fig. 2 in größerem Maßstab, eines Druckmittelzylinders bzw. einer Zylinder-Speichereinheit.The invention is still partially schematic in the following with the aid of the drawing illustrated embodiment explained in more detail. Fig. 1 shows a partial Top view, Fig. 2 shows a section along the line II-II in Fig. 1 on a reduced scale and Fig. 3 shows the detail III of Fig. 2 on a larger scale, a pressure cylinder or one Cylinder storage unit.

Dargestellt ist ein linearer Druckmittelzylinder mit einseitig herausgeführter Kolbenstange 1, dessen das Zylinderrohr 2 kolbenseitig abschließender Zylinderboden 3 ein Befestigungselement 4 und einen aufgesetzten Funktionsblock 5 mit Funktionselementen, beispielsweise Anschlüssen 6, 7, einem Druckspeicher 8, einem Ventil 9 oder dergleichen, trägt. Derartige Druckmittelzylinder werden beispielsweise im Bereich der Personensicherung bzw. Personenrückhaltung in Fahrgeschäften und dergleichen zum Betätigen bzw. Festhalten von Sicherheitsbügeln oder ähnlichen Elementen eingesetzt, wobei das Öffnen des über die Kolbenstange 1 bzw. das daran angebrachte Auge 10 angelenkten Sicherheitsbügels (hier nicht weiter dargestellt) über die während des Schließvorgangs (bei Einfahren der Kolbenstange 1) im Druckspeicher 8 am Funktionsblock 5 gespeicherte Energie erfolgt.A linear pressure medium cylinder with a piston rod led out on one side is shown 1, the cylinder bottom 3 closing the cylinder tube 3 on the piston side a fastening element 4 and an attached function block 5 with functional elements, for example Connections 6, 7, a pressure accumulator 8, a valve 9 or the like, carries. Such pressure medium cylinders are used, for example, in the area of personal security or Passenger restraint in rides and the like for operating or holding Safety bars or similar elements are used, the opening of the piston rod 1 or the eye 10 attached to the safety bar (not here further shown) via the during the closing process (when retracting the piston rod 1) energy stored in the pressure accumulator 8 at the function block 5.

Davon abgesehen sind derartige Druckmittelzylinder - mit verschiedensten Funktionselementen im oder am Funktionsblock - auch für verschiedenste andere Anwendungen beispielsweise als Arbeitszylinder zur Betätigung von Vorrichtungs- oder Maschinenelementen, vorteilhaft einsetzbar, wobei zufolge der unmittelbaren Anordnung des Funktionsblocks am Druckmittelzylinder die Sicherheit gegen Undichtheiten oder Leitungsbrüche erhöht ist. In der dargestellten Ausführungsform wird darüber hinaus auch der stangenseitige Arbeitsraum 11 ohne separat außen zu führende Druckmittelleitungen mit Druckmittel versorgt, wozu ein konzentrischer Hohlraum 12 zwischen Außenrohr 13 und Innenrohr 14 des Zylinderrohrs 2 dient, der auf untenstehend noch angesprochene Weise mit den Druckmittelleitungen im Funktionsblock 5 einerseits und über Bohrungen 15 in einem deckelseitigen Führungselement 16 mit Druckmittel beaufschlagbar bzw. davon entlastbar ist. Es ergibt sich damit insgesamt eine sehr kompakte und im Bereich des Druckmittelzylinder selbst ohne äußere Druckmittelleitungen auskommende Anordnung, die höchsten Sicherheitsanforderungen genügt.Apart from that, such pressure medium cylinders - with a wide variety of functional elements in or on the function block - also for various other applications for example as a working cylinder for actuating device or machine elements, can be used advantageously, whereby according to the immediate arrangement of the functional block the security against leaks or line breaks is increased on the pressure cylinder. In the embodiment shown is also the rod-side work space 11 supplied with pressure medium without separately leading pressure medium lines, for which a Concentric cavity 12 between outer tube 13 and inner tube 14 of the cylinder tube 2 serves, in the manner mentioned below with the pressure medium lines in the Function block 5 on the one hand and via holes 15 in a cover-side guide element 16 can be acted upon with pressure medium or relieved of it. This results in a total a very compact and in the area of the pressure cylinder itself without external Arrangement with pressure medium lines that meets the highest safety requirements.

Um die Verbindung des Funktionsblocks 5 mit dem Druckmittelzylinder bzw. dem Zylinderboden 3 einfacher und stabiler zu machen, weist der Zylinderboden 3 einen hier abgestuften zylindrischen äußeren Anschlußbereich 17 auf, in welchem die zu den Arbeitsräumen 11 (stangenseitig) und 18 (kolbenseitig) führen Druckmittelleitungen 19, 20 nach außen münden und auf den der Funktionsblock 5 mit einer abgedichteten Durchgangsbohrung 21, in welche die hier nicht weiter dargestellten Druckmittelleitungen der Funktionselemente 6 bis 9 münden, aufgesetzt und mittels einer Überwurfmutter 22 befestigt ist. Der Zylinderboden 3 ist insgesamt als mit dem Zylinderrohr 2 koaxialer, separater Drehteil ausgeführt, der mittels einer Ringdichtung 23 abgedichtet in das Außenrohr 13 des Zylinderrohrs 3 eingeschraubt ist und an einem vorderen Absatz 24 über eine weitere Ringdichtung 25 abgedichtet auch das Innenrohr 14 trägt.To connect the function block 5 with the pressure medium cylinder or the cylinder base 3 simpler and more stable, the cylinder base 3 has a graded here cylindrical outer connection area 17, in which the to the work rooms 11 (rod side) and 18 (piston side) lead pressure medium lines 19, 20 to the outside open and on which the functional block 5 with a sealed through hole 21, into which the pressure medium lines of the functional elements 6, not shown further here to 9 open, placed and fastened by means of a union nut 22. The cylinder bottom 3 is designed overall as a separate rotating part which is coaxial with the cylinder tube 2 sealed by means of an annular seal 23 and screwed into the outer tube 13 of the cylinder tube 3 and is sealed at a front shoulder 24 via a further ring seal 25 also carries the inner tube 14.

Die Druckmittelleitungen 19 und 20 sowie auch die hier nicht dargestellten, von den Funktionselementen 6 bis 9 kommenden Druckmittelleitungen im Funktionsblock 5 münden in zwischen der Durchgangsbohrung 21 des Funktionsblocks 5 und dem Anschlußbereich 17 des Zylinderbodens 3 ausgebildete umlaufende Ringausnehmungen 26, 27, womit der Funktionsblock 5 samt den Funktionselementen 6 bis 9 winkelmäßig gegenüber dem Zylinderrohr 2 samt eingeschraubtem Zylinderboden 3 um die Achse 28 des gesamten Druckmittelzylinders verschwenkt werden kann, was eine einfache Anpassung an die jeweilige Einbausituation des Druckmittelzylinders ermöglicht. Das Befestigungelement 4 ist als eingeschraubtes Schwenkauge ausgebildet und mit einer gekonterten Mutter 29 fixiert, wobei zufolge des hier größeren Durchmessers des Schwenkauges die Überwurfmutter 22 zur Befestigung bzw. Fixierung des Funktionsblocks 5 auf dem Zylinderboden 3 vor dem Einschrauben des Schwenkauges zumindest bereits aufgesetzt sein muß - eine winkelmäßige Verstellung des Funktionsblocks 5 mit anschließender Fixierung durch Festziehen der Überwurfmutter 22 ist aber auch bei eingeschraubtem und befestigtem Befestigungselement 4 möglich.The pressure medium lines 19 and 20 as well as those not shown here by the Functional elements 6 to 9 coming fluid lines in the function block 5 open in between the through hole 21 of the function block 5 and the connection area 17th of the cylinder bottom 3 formed circumferential ring recesses 26, 27, with which the functional block 5 together with the functional elements 6 to 9 angularly with respect to the cylinder tube 2 together with the screwed-in cylinder base 3 around the axis 28 of the entire pressure medium cylinder can be pivoted, making it easy to adapt to the respective installation situation of the pressure cylinder. The fastening element 4 is screwed in Swivel eye trained and fixed with a locked nut 29, according to the here larger diameter of the swivel eye, the union nut 22 for fastening or Fixing the functional block 5 on the cylinder base 3 before screwing in the Swivel eyes must at least already be put on - an angular adjustment of the Function blocks 5 with subsequent fixation by tightening the union nut 22 is but also possible with screwed and fastened fastener 4.

Auf den Zylinderdeckel 30 mit Dichtung 31, der einerseits innen das schon erwähnte Führungselement 16 und andererseits außen das abgedichtete Außenrohr 13 trägt (das Innenrohr 14 liegt auf einem Ansatz des Führungselementes 16 auf) ist nur der Vollständigkeit halber hinzuweisen.On the cylinder cover 30 with seal 31, which on the one hand the inside already mentioned Guide element 16 and on the other hand carries the sealed outer tube 13 (the Inner tube 14 lies on a shoulder of the guide element 16) is only the Point out completeness.

Gleiches gilt auch für die spezielle Ausbildung des Kolbens 32 mit drei Nuten für Dichtungs- bzw. Führungsringe 33.The same also applies to the special design of the piston 32 with three grooves for sealing or guide rings 33.

Abgesehen von der dargestellten stufenartigen Ausführung des Anschlußbereichs 17 und der Durchgangsbohrung 21 mit zur seitlichen Abdichtung der Ringausnehmungen 26, 27 vorgesehenen Dichtringen 34 könnte bedarfsweise aber auch eine andere geeignete Ausbildung der zusammenwirkenden Anschlußflächen vorgesehen werden, wobei auch andere Ausführungen der Ausmündung der zusammenwirkenden Druckmittelleitungen (schräg oder in eine Seitenfläche einer Schulter oder Nut) möglich wären. Ebenso könnte das Befestigungselement 4 auch bedarfsweise einstückig mit dem Zylinderboden 3 ausgeführt oder eine andere Art der Fixierung des Funktionsblocks 5 auf dem Zylinderboden 3 gewählt werden.Apart from the step-like design of the connection region 17 shown and the through hole 21 for the lateral sealing of the ring recesses 26, 27 provided sealing rings 34 could, if necessary, also other suitable training the cooperating pads are provided, with others Designs of the mouth of the interacting pressure medium lines (oblique or into a side surface of a shoulder or groove) would be possible. The fastener could also 4 also, if necessary, in one piece with the cylinder base 3 or one another type of fixation of the function block 5 on the cylinder base 3 can be selected.

Claims (6)

Druckmittelzylinder mit einseitig herausgeführter Kolbenstange (1), dessen das Zylinderrohr (2) kolbenseitig abschließender Zylinderboden (3) ein Befestigungselement (4) und einen aufgesetzten Funktionsblock (5) mit Funktionselementen, beispielsweise Anschlüssen (6, 7), Ventilen (9) , Druckspeichern (8) oder dergleichen, trägt, dadurch gekennzeichnet, daß der Zylinderboden (3) zumindest einen zylindrischen äußeren Anschlußbereich (17) aufweist, in welchem die zu den Arbeitsräumen (11, 18) führenden Druckmittelleitungen (19, 20) nach außen münden und auf den der Funktionsblock (5) mit einer abgedichteten Durchgangsbohrung (21), in welche die Druckmittelleitungen der Funktionselemente (6 bis 9) münden, aufgesetzt und befestigt ist.Pressure medium cylinder with a piston rod (1) leading out, the cylinder bottom (3) of which closes the cylinder tube (2) on the piston side, a fastening element (4) and an attached functional block (5) with functional elements, for example connections (6, 7), valves (9), pressure accumulators (8) or the like, characterized in that the cylinder base (3) has at least one cylindrical outer connection area (17), in which the pressure medium lines (19, 20) leading to the work spaces (11, 18) open and open to the outside the functional block (5) with a sealed through hole (21), into which the pressure medium lines of the functional elements (6 to 9) open, is placed and fastened. Druckmittelzylinder nach Anspruch 1, dadurch gekennzeichnet, daß der Zylinderboden (3) insgesamt als mit dem Zylinderrohr (2) koaxialer, abgedichtet verbundener, separater Drehteil ausgeführt ist.Pressure medium cylinder according to claim 1, characterized in that the cylinder base (3) is designed overall as a separate rotating part which is coaxially sealed with the cylinder tube (2). Druckmittelzylinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Druckmittelleitungen in der Durchgangsbohrung (21) des Funktionsblocks (5) und/oder am äußeren Anschlußbereich (17) des Zylinderbodens (3) in umlaufende Ringausnehmungen (26, 27) münden.Pressure medium cylinder according to claim 1 or 2, characterized in that the pressure medium lines in the through bore (21) of the functional block (5) and / or at the outer connection area (17) of the cylinder base (3) open into circumferential ring recesses (26, 27). Druckmittelzylinder nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Zylinderboden (3) abgedichtet in das Zylinderrohr (2) eingeschraubt ist. Pressure cylinder according to Claim 2 or 3, characterized in that the cylinder base (3) is screwed into the cylinder tube (2) in a sealed manner. Druckmittelzylinder nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Befestigungselement (4) für den Druckmittelzylinder an der Außenseite des Zylinderbodens (3) befestigt und vorzugsweise von einem eingeschraubten Schwenkauge gebildet ist.Pressure medium cylinder according to one or more of claims 1 to 4, characterized in that the fastening element (4) for the pressure medium cylinder is fastened to the outside of the cylinder base (3) and is preferably formed by a screwed-in swivel eye. Druckmittelzylinder nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der aufgesetzte Funktionsblock (5) mittels einer von der Außenseite her auf den Zylinderboden (3) aufgeschraubten Befestigungsmutter (22) befestigt ist.Pressure cylinder according to one or more of claims 1 to 5, characterized in that the attached functional block (5) is fastened by means of a fastening nut (22) screwed onto the cylinder base (3) from the outside.
EP01890197A 2000-07-26 2001-06-27 Hydraulic cylinder Expired - Lifetime EP1176319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01890197T ATE296962T1 (en) 2000-07-26 2001-06-27 PRESSURE MEDIA CYLINDER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0131500A AT409788B (en) 2000-07-26 2000-07-26 CENTRAL PRESSURE CYLINDER
AT13152000 2000-07-26

Publications (3)

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EP1176319A2 true EP1176319A2 (en) 2002-01-30
EP1176319A3 EP1176319A3 (en) 2004-02-04
EP1176319B1 EP1176319B1 (en) 2005-06-01

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ID=3688113

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EP01890197A Expired - Lifetime EP1176319B1 (en) 2000-07-26 2001-06-27 Hydraulic cylinder

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US (1) US6588556B2 (en)
EP (1) EP1176319B1 (en)
AT (2) AT409788B (en)
DE (1) DE50106370D1 (en)

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Also Published As

Publication number Publication date
US6588556B2 (en) 2003-07-08
EP1176319B1 (en) 2005-06-01
DE50106370D1 (en) 2005-07-07
ATE296962T1 (en) 2005-06-15
EP1176319A3 (en) 2004-02-04
US20020010978A1 (en) 2002-01-31
AT409788B (en) 2002-11-25
ATA13152000A (en) 2002-03-15

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