EP1176319B1 - Hydraulic cylinder - Google Patents

Hydraulic cylinder Download PDF

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Publication number
EP1176319B1
EP1176319B1 EP01890197A EP01890197A EP1176319B1 EP 1176319 B1 EP1176319 B1 EP 1176319B1 EP 01890197 A EP01890197 A EP 01890197A EP 01890197 A EP01890197 A EP 01890197A EP 1176319 B1 EP1176319 B1 EP 1176319B1
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EP
European Patent Office
Prior art keywords
cylinder
function block
pressurizing
cylinder bottom
attached
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.)
Expired - Lifetime
Application number
EP01890197A
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German (de)
French (fr)
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EP1176319A2 (en
EP1176319A3 (en
Inventor
Georg Strobel
Josef Dünzinger
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Hoerbiger Micro Fluid GmbH
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Hoerbiger Micro Fluid GmbH
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Priority to AT01890197T priority Critical patent/ATE296962T1/en
Publication of EP1176319A2 publication Critical patent/EP1176319A2/en
Publication of EP1176319A3 publication Critical patent/EP1176319A3/en
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Publication of EP1176319B1 publication Critical patent/EP1176319B1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149Fluid interconnections, e.g. fluid connectors, passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1433End caps

Definitions

  • the invention relates to a pressure cylinder with one side led out piston rod with a Betest Trentselement and with a functional block, wherein the the cylinder tube piston side final cylinder bottom the fastener and the attached functional block with functional elements, for example terminals, Valves, accumulators or the like, carries.
  • Such a pressure cylinder is known from WO 99 34119.
  • Such cylinders are known for a variety of applications and allow at simple and compact design a safe function as well as providing in wide Limits of variable strokes or forces. Especially for safety applications Often it is desirable or required that at least individual functional elements the control of such cylinders directly and without hindrance or increased risk performing lines are arranged on the cylinder itself. Apart from one the total construction as well as naturally also assembly and maintenance complicated making arrangement such functional elements integral with or in the cylinder base, cover or tube, In this context, above all arrangements have proven in which block-like combined functional units on the cylinder bottom or in the area the cylinder bottom are placed. These function blocks are for this purpose too machined connecting surfaces screwed sealed, the necessary pressure medium connections via matching mouths of the corresponding lines the cooperating pads are made.
  • Pressure medium cylinder of the type mentioned, for example, for so-called cylinder storage units used, as they are for personal security or people restraint in rides and the like in connection with safety bars or the like Elements are used.
  • cylinder storage units for so-called cylinder storage units used, as they are for personal security or people restraint in rides and the like in connection with safety bars or the like Elements are used.
  • mechanically latching systems can with such accumulator units a continuous ironing adjustment be realized, which in contrast to mechanical systems negligible Wear contributes to increasing safety. Opening the safety bar takes place during the closing process in a pressure accumulator on the function block stored energy, whereby for safety also several units per person used can be.
  • Object of the present invention is to provide a pressure medium cylinder of the above mentioned type to improve so that the mentioned disadvantages of the known arrangements be avoided and that in particular the arrangement and attachment of the patch Function block is improved.
  • a pressure cylinder of the aforementioned Art achieved in that the cylinder bottom at least a cylindrical outer terminal region, in which the to the work spaces leading pressure medium lines open to the outside and which in a corresponding sealed passage bore of the function block into which the pressure medium lines of the functional elements open, plugged in and fixed there.
  • Cylinder or cylinder bottom has been provided connecting area on an all-round, extended cylindrical outer terminal area on the cylinder bottom, in a corresponding sealed through hole of the function block inserted and fastened there is, which results in a very stable and therefore safe construction. any occurring forces between the cylinder or cylinder bottom and the function block thus transferred in the main thing directly form-fitting between these components and not as before about mounting screws or similar elements on the one-sided terminal areas.
  • the cylinder bottom as a whole coaxial with the cylinder tube, sealed connected, separate rotary part is executed, which is the production of the cylinder base opposite greatly simplified the previously required milled parts.
  • the fastener on the cylinder bottom For example, defines a defined rotational position of the cylinder, it is with this configuration still possible, the function block to arbitrarily angularly on the cylindrical Connection area of the cylinder bottom twisted to fix, which is the case for many applications is beneficial.
  • the cylinder bottom is sealed in a further embodiment of the invention in the cylinder tube screwed, which simplifies manufacture and assembly and not least because the above-described possibility of angularly offset mounting of the function block also no positioning problems of the parts relative to each other.
  • the fastener for the pressure cylinder is after a further preferred Embodiment of the invention attached to the outside of the cylinder bottom and preferably formed by a screwed pivoting eye. This also facilitates production and assembly of the cylinder bottom and the pressure cylinder total.
  • the attached functional block by means of a screwed onto the cylinder bottom from the outside Fixing nut is attached. This gives a very easy way to secure attachment of the functional block, with the possibility of the above-mentioned subsequent attachment of an example, even larger Schwenkauges not is impaired.
  • Fig. 1 shows a partial Top view
  • Fig. 2 is 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 medium cylinder or a Cylinder storage unit.
  • a linear pressure cylinder with one side led out piston rod 1, the cylinder tube 2 piston side final cylinder bottom 3 a fastener 4 and an attached functional block 5 with functional elements, for example Ports 6, 7, a pressure accumulator 8, a valve 9 or the like, carries.
  • Such pressure cylinder are, for example, in the field of personal security or Person restraint in rides and the like for pressing or holding Safety brackets or similar elements used, with the opening of the above the piston rod 1 or the attached eye 10 hinged safety bar (not here further shown) during the closing operation (when retracting the piston rod 1) Energy stored in the pressure accumulator 8 is stored at the function block 5.
  • the pressure medium cylinder safety against leaks or broken lines is increased.
  • the rod-side working space 11 supplied without pressure medium to outside leading pressure medium lines with pressure medium, including a concentric cavity 12 between outer tube 13 and inner tube 14 of the cylinder tube second serves, in the manner mentioned below with the pressure medium lines in the Functional block 5 on the one hand and via holes 15 in a cover-side guide element 16 can be acted upon or relieved of pressure medium. It thus results in total a very compact and in the range of the pressure cylinder itself without external Pressure medium lines coming out arrangement that meets the highest safety requirements.
  • the cylinder base 3 has a graduated here cylindrical outer terminal portion 17, in which the to the workrooms 11 (rod side) and 18 (piston side) lead pressure medium lines 19, 20 to the outside open and on the functional block 5 with a sealed through hole 21, in which the pressure medium lines of the functional elements 6 not shown here open to 9, placed and secured by a union nut 22.
  • the cylinder bottom 3 is a total of coaxial with the cylinder tube 2, separate rotating part executed, the sealed by means of a ring seal 23 screwed into the outer tube 13 of the cylinder tube 3 is and sealed at a front shoulder 24 via a further annular seal 25 also the inner tube 14 carries.
  • the fastening element 4 is screwed in Swivel eye trained and fixed with a countered nut 29, according to the here larger diameter of the swivel eye the union nut 22 for attachment or Fixation of the functional block 5 on the cylinder bottom 3 before screwing the Schwenkauges at least already must be placed - an angular adjustment of the Function block 5 with subsequent fixation by tightening the nut 22 is but also possible with screwed and fastened fastener 4.
  • connection portion 17th and the through hole 21 with for lateral sealing of the annular recesses 26, 27th provided sealing rings 34 could, if necessary, but also another suitable training the cooperating pads are provided, and others Versions of the outlet of the cooperating pressure medium lines (oblique or in a side surface of a shoulder or groove) would be possible.
  • the fastener could 4 also, if necessary, carried out in one piece with the cylinder base 3 or a other type of fixation of the functional block 5 can be selected on the cylinder bottom 3.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Gripping On Spindles (AREA)
  • Diaphragms For Electromechanical Transducers (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 mit einem Betestigungselement und mit einen Funktionsblock, wobei der das Zylinderrohr kolbenseitig abschließender Zylinderboden das Befestigungselement und den aufgesetzten Funktionsblock mit Funktionselementen, beispielsweise Anschlüssen, Ventilen, Druckspeichern oder dergleichen, trägt.The invention relates to a pressure cylinder with one side led out piston rod with a Betestigungselement and with a functional block, wherein the the cylinder tube piston side final cylinder bottom the fastener and the attached functional block with functional elements, for example terminals, Valves, accumulators or the like, carries.

Ein solcher Druckmittelzylinder ist aus WO 99 34119 bekannt.Such a pressure cylinder is known from WO 99 34119.

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 oderrohr, 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 variety of applications and allow at simple and compact design a safe function as well as providing in wide Limits of variable strokes or forces. Especially for safety applications Often it is desirable or required that at least individual functional elements the control of such cylinders directly and without hindrance or increased risk performing lines are arranged on the cylinder itself. Apart from one the total construction as well as naturally also assembly and maintenance complicated making arrangement such functional elements integral with or in the cylinder base, cover or tube, In this context, above all arrangements have proven in which block-like combined functional units on the cylinder bottom or in the area the cylinder bottom are placed. These function blocks are for this purpose too machined connecting surfaces screwed sealed, the necessary pressure medium connections via matching mouths of the corresponding lines the cooperating 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 cylinder of the type mentioned, for example, for so-called cylinder storage units used, as they are for personal security or people restraint in rides and the like in connection with safety bars or the like Elements are used. In contrast to earlier partially used mechanically latching systems can with such accumulator units a continuous ironing adjustment be realized, which in contrast to mechanical systems negligible Wear contributes to increasing safety. Opening the safety bar takes place during the closing process in a pressure accumulator on the function block stored energy, whereby for safety also several units per person used 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 of the type mentioned is in spite of all the advantages relatively expensive and inflexible Training to see the connection of the function block, also with regard to Construction volume, weight of the overall arrangement and safety 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.Object of the present invention is to provide a pressure medium cylinder of the above mentioned type to improve so that the mentioned disadvantages of the known arrangements be avoided and that in particular the arrangement and attachment of the patch Function block 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 welcher in eine entsprechend abgedichtete Durchgangsbohrung des Funktionsblocks, in welche die Druckmittelleitungen der Funktions-elemente münden, eingesteckt und dort 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 object is in a pressure cylinder of the aforementioned Art according to the present invention achieved in that the cylinder bottom at least a cylindrical outer terminal region, in which the to the work spaces leading pressure medium lines open to the outside and which in a corresponding sealed passage bore of the function block into which the pressure medium lines of the functional elements open, plugged in and fixed there. So that is so far always one-sided am Cylinder or cylinder bottom has been provided connecting area on an all-round, extended cylindrical outer terminal area on the cylinder bottom, in a corresponding sealed through hole of the function block inserted and fastened there is, which results in a very stable and therefore safe construction. any occurring forces between the cylinder or cylinder bottom and the function block thus transferred in the main thing directly form-fitting between these components and not as before about mounting screws or similar elements on the one-sided terminal 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 is provided that the cylinder bottom as a whole coaxial with the cylinder tube, sealed connected, separate rotary part is executed, which is the production of the cylinder base opposite greatly simplified the previously required milled parts.

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 terminal portion of the cylinder bottom open to a further preferred Embodiment of the invention in circumferential annular recesses, which in a very simple manner an angular freedom in the positioning of the functional block relative to the cylinder bottom or to the pressure cylinder results. When the fastener on the cylinder bottom For example, defines a defined rotational position of the cylinder, it is with this configuration still possible, the function block to arbitrarily angularly on the cylindrical Connection area of the cylinder bottom twisted to fix, which is the case for many applications is beneficial.

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.The cylinder bottom is sealed in a further embodiment of the invention in the cylinder tube screwed, which simplifies manufacture and assembly and not least because the above-described possibility of angularly offset mounting of the function block also no positioning problems of the parts relative to each other.

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 fastener for the pressure cylinder is after a further preferred Embodiment of the invention attached to the outside of the cylinder bottom and preferably formed by a screwed pivoting eye. This also facilitates production and assembly of the cylinder bottom and the pressure cylinder total.

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 can be provided that the attached functional block by means of a screwed onto the cylinder bottom from the outside Fixing nut is attached. This gives a very easy way to secure attachment of the functional block, with the possibility of the above-mentioned subsequent attachment of an example, even larger Schwenkauges not is impaired.

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 will be described in more detail below with reference to the drawing in which partially illustrated embodiment illustrated. Fig. 1 shows a partial Top view, Fig. 2 is 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 medium cylinder or a 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.Shown is a linear pressure cylinder with one side led out piston rod 1, the cylinder tube 2 piston side final cylinder bottom 3 a fastener 4 and an attached functional block 5 with functional elements, for example Ports 6, 7, a pressure accumulator 8, a valve 9 or the like, carries. Such pressure cylinder are, for example, in the field of personal security or Person restraint in rides and the like for pressing or holding Safety brackets or similar elements used, with the opening of the above the piston rod 1 or the attached eye 10 hinged safety bar (not here further shown) during the closing operation (when retracting the piston rod 1) Energy stored in the pressure accumulator 8 is stored 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 this are such pressure cylinder - with a variety of functional elements in or on the function block - also for a variety of other applications for example as a working cylinder for actuating device or machine elements, advantageously usable, according to the immediate arrangement of the functional block the pressure medium cylinder safety against leaks or broken lines is increased. In In addition, the illustrated embodiment, the rod-side working space 11 supplied without pressure medium to outside leading pressure medium lines with pressure medium, including a concentric cavity 12 between outer tube 13 and inner tube 14 of the cylinder tube second serves, in the manner mentioned below with the pressure medium lines in the Functional block 5 on the one hand and via holes 15 in a cover-side guide element 16 can be acted upon or relieved of pressure medium. It thus results in total a very compact and in the range of the pressure cylinder itself without external Pressure medium lines coming out arrangement 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 the connection of the function block 5 with the pressure medium cylinder or the cylinder bottom To make 3 easier and more stable, the cylinder base 3 has a graduated here cylindrical outer terminal portion 17, in which the to the workrooms 11 (rod side) and 18 (piston side) lead pressure medium lines 19, 20 to the outside open and on the functional block 5 with a sealed through hole 21, in which the pressure medium lines of the functional elements 6 not shown here open to 9, placed and secured by a union nut 22. The cylinder bottom 3 is a total of coaxial with the cylinder tube 2, separate rotating part executed, the sealed by means of a ring seal 23 screwed into the outer tube 13 of the cylinder tube 3 is and sealed at a front shoulder 24 via a further annular seal 25 also the inner tube 14 carries.

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 and also not shown here, of the Function elements 6 to 9 coming pressure medium lines in the function block 5 open in between the through hole 21 of the functional block 5 and the terminal portion 17th the cylinder bottom 3 formed circumferential annular recesses 26, 27, whereby the function block 5 together with the functional elements 6 to 9 angularly relative to the cylinder tube 2 together with screwed cylinder bottom 3 about the axis 28 of the entire pressure cylinder can be pivoted, allowing easy adaptation to the particular installation situation the pressure cylinder allows. The fastening element 4 is screwed in Swivel eye trained and fixed with a countered nut 29, according to the here larger diameter of the swivel eye the union nut 22 for attachment or Fixation of the functional block 5 on the cylinder bottom 3 before screwing the Schwenkauges at least already must be placed - an angular adjustment of the Function block 5 with subsequent fixation by tightening the 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, on the one hand inside already mentioned Guide member 16 and on the other hand outside the sealed outer tube 13 carries (the Inner tube 14 rests on a projection of the guide element 16) is only the For completeness.

Gleiches gilt auch für die spezielle Ausbildung des Kolbens 32 mit drei Nuten für Dichtungs- bzw. Führungsringe 33.The same 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 illustrated step-like design of the connection portion 17th and the through hole 21 with for lateral sealing of the annular recesses 26, 27th provided sealing rings 34 could, if necessary, but also another suitable training the cooperating pads are provided, and others Versions of the outlet of the cooperating pressure medium lines (oblique or in a side surface of a shoulder or groove) would be possible. Likewise, the fastener could 4 also, if necessary, carried out in one piece with the cylinder base 3 or a other type of fixation of the functional block 5 can be selected on the cylinder bottom 3.

Claims (6)

  1. Pressurizing cylinder with a piston rod guided through on one side, with an attachment element (4) and with a function block (5), whereby the cylinder tube (2) supports the attachment element (4) with a cylinder bottom terminating on the piston side and the attached function block (5) supports functional elements, for example, terminals (6, 7), valves (9), accumulators (8), or the like, characterized in that the cylinder bottom (3) has at least one cylindrical outer connection region (17), in which the pressurized lines (19, 20) leading to the working chambers (11, 18) open outwardly and which is inserted in a corresponding, sealed through-bore (21) of the function block (5), in which the pressurized lines of the function elements (6 through 9) open, and is attached there.
  2. Pressurizing cylinder according to claim 1, characterized in that the cylinder floor (3) is embodied generally as a separate turning workpiece connected sealingly and coaxially with the cylinder tube (2).
  3. Pressurizing cylinder according to claim 1 or 2, characterized in that the pressurizing lines open into the through-bore (21) of the function block (5) and/or on the outer connection region (17) of the cylinder bottom (3) in circumferential annular recesses (26, 27) .
  4. Pressurizing cylinder according to claim 2 or 3, characterized in that the cylinder bottom (3) is sealingly screwed into the cylinder tube (2).
  5. Pressurizing cylinder according to one or more of claims 1 through 4, characterized in that the attachment element (4) for the pressurizing cylinder is attached on the outer side of the cylinder bottom (3) and is formed preferably by a screwed-in swivel eye.
  6. Pressurizing cylinder according to one or more of claims 1 through 5, characterized in that the attached function block (5) is attached by means of an attachment nut (22) screwed from the outside onto the cylinder bottom (3).
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
AT13152000 2000-07-26
AT0131500A AT409788B (en) 2000-07-26 2000-07-26 CENTRAL PRESSURE CYLINDER

Publications (3)

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

Family

ID=3688113

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409788B (en) * 2000-07-26 2002-11-25 Hoerbiger Micro Fluid Gmbh CENTRAL PRESSURE CYLINDER
CN106895043B (en) * 2017-04-06 2019-04-19 宁波利达气动成套有限公司 A kind of anti-rotation lifting cylinder
US11007960B1 (en) * 2017-04-13 2021-05-18 Advanced Concepts in Manufacturing LLC Restraint systems and restraint system methods

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DE2336249A1 (en) * 1973-07-17 1975-02-06 Hydraulik Zubehoer Ges Fuer Hydraulic power unit - has hydropump, hydraulic fluid reservoir, and power cylinder built into one assembly
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DK153197A (en) * 1997-12-23 1999-06-24 Anders Sten Wedell Hydraulic unit
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JP3615459B2 (en) * 2000-04-18 2005-02-02 株式会社嶋田 Hydraulic cylinder unit
AT409788B (en) * 2000-07-26 2002-11-25 Hoerbiger Micro Fluid Gmbh CENTRAL PRESSURE CYLINDER

Also Published As

Publication number Publication date
US6588556B2 (en) 2003-07-08
EP1176319A2 (en) 2002-01-30
EP1176319A3 (en) 2004-02-04
ATA13152000A (en) 2002-03-15
ATE296962T1 (en) 2005-06-15
US20020010978A1 (en) 2002-01-31
AT409788B (en) 2002-11-25
DE50106370D1 (en) 2005-07-07

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