EP1918592B1 - Sealing ring with integrated cushioning means, end cap with sealing ring and pneumatic cylinder with end cap and sealing means - Google Patents

Sealing ring with integrated cushioning means, end cap with sealing ring and pneumatic cylinder with end cap and sealing means Download PDF

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Publication number
EP1918592B1
EP1918592B1 EP06022912A EP06022912A EP1918592B1 EP 1918592 B1 EP1918592 B1 EP 1918592B1 EP 06022912 A EP06022912 A EP 06022912A EP 06022912 A EP06022912 A EP 06022912A EP 1918592 B1 EP1918592 B1 EP 1918592B1
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EP
European Patent Office
Prior art keywords
sealing
sealing ring
ring arrangement
piston
arrangement according
Prior art date
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Active
Application number
EP06022912A
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German (de)
French (fr)
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EP1918592B2 (en
EP1918592A1 (en
Inventor
Gonzalo Barillas
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Carl Freudenberg KG
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Carl Freudenberg KG
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Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to AT06022912T priority Critical patent/ATE484682T1/en
Priority to EP06022912.7A priority patent/EP1918592B2/en
Priority to DE502006008098T priority patent/DE502006008098D1/en
Priority to TW096136999A priority patent/TW200837297A/en
Priority to US11/982,158 priority patent/US7866252B2/en
Priority to JP2007286928A priority patent/JP4847431B2/en
Publication of EP1918592A1 publication Critical patent/EP1918592A1/en
Publication of EP1918592B1 publication Critical patent/EP1918592B1/en
Application granted granted Critical
Priority to US12/958,859 priority patent/US8234970B2/en
Publication of EP1918592B2 publication Critical patent/EP1918592B2/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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/223—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position
    • 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
    • F15B15/1438—Cylinder to end cap assemblies
    • F15B15/1442—End cap sealings

Definitions

  • the invention relates to a sealing ring arrangement with a lid and a sealing ring for a pneumatic cylinder.
  • Sealing rings that are used in pneumatic cylinders for application and seal end caps against the cylinder tube of the pneumatic cylinder, are well known, for example from the EP 1 447 571 B1 .
  • the sealing rings which seal the frontal cover in each case with respect to the cylinder tube, are formed by conventional O-rings.
  • the piston has the front side on both sides in each case a dynamically stressed seal, for mutual sealing of the acted upon by a pressure medium spaces.
  • At least partially iron metallic stop element is provided, which is fixed in a piston near basic position by the magnetic force of at least one permanent magnet on the piston and which in a piston remote working position for cushioning in the respective adjacent Protruding pressure chamber, wherein an externally arranged on the cylinder housing adjustable magnetic element for generating a relative to the magnetic field of the permanent magnet substantially inverted magnetic field is provided to achieve a change in position of the stop element from the basic position to the working position when the piston shortly before reaching the end position Magnetic element happens.
  • the previously known pneumatic cylinder has a variety of items, which is unsatisfactory in manufacturing and economic terms.
  • a generic sealing ring assembly is made FR 2658872 known.
  • the invention has for its object to further develop a sealing ring, a lid with a sealing ring and a pneumatic cylinder with cover and sealing ring such that the respective parts are simple and inexpensive to produce.
  • the sealing ring should be multifunctional with a simple structure. Due to the small number of parts, the risk of assembly errors should be reduced to a minimum.
  • the material of the sealing ring which is not the subject of the invention, can be formed by a sealing material known per se and can thus be adapted to the particular circumstances of the application,
  • the damping buffer, the static seal and the dynamic seal may be integral with each other and formed of the same material. By combining in one component, the risk of assembly errors is kept to a minimum.
  • the static seal is bead-shaped and can be snapped into a congruently formed undercut of the lid.
  • the static seal and the lid are thus captive connected to each other and form a preassembled unit that can be easily installed.
  • the sealing lip may comprise a first sealing edge, wherein the first sealing edge is sealingly applied to the cover when the sealing lip is applied to the sealing lip.
  • the sealing of the sealing edge on the lid is required for that builds up a sufficiently high pressure within the sealed space for the cushioning and then the piston moves damped in its final position until it applies to the damping buffer.
  • the sealing lip may comprise a second sealing edge which is sealingly applied to the cover when the sealing lip is applied to the sealing lip, wherein the second sealing edge of the first sealing edge is connected upstream in the direction of the pressurized cylinder tube.
  • the first sealing edge may be enclosed at a radial distance on the outside of the second sealing edge.
  • the sealing edges can limit an axially opposite the piston open, C-shaped groove.
  • the sealing lip may be bulged axially in the direction of the piston.
  • This lip design has a pressure-activating effect. The pressure-facing portion of the seal and the lid can be carried out so that no gap extrusion can occur.
  • connection opening may comprise at least one bore arranged on the front side on the circumference and, on the other hand, an annular channel on the face side which can be fluidically connected to a throttle bore in the cylinder tube.
  • the connection opening within the sealing ring can be formed immediately with the production of the sealing ring, so that it no longer requires complicated, subsequent process steps for the preparation of the connection opening.
  • the end faces of the sealing ring can be connected by a ventilation opening, wherein the ventilation opening connects the cylinder tube and the cylinder tube facing side of the second sealing edge in a flow-conducting manner.
  • the sealing lip is acted upon by the overpressure to be sealed so that the pressure on both sealing edges compensates and create these sealing and without risk of lifting on the surfaces to be sealed by damping pin and cover.
  • the medium that is sealed is air.
  • the invention relates to a sealing ring assembly with a cover for a pneumatic cylinder, which is connected to a sealing ring, as described above, and forms with this a preassemblable unit.
  • the undercut in the cover may be formed by a radially outwardly open groove in which the bead-shaped static seal is sealingly arranged.
  • FIGS. 1 to 3 show the sealing ring according to the invention, the lid according to the invention and the pneumatic cylinder in different operating states.
  • FIG. 4 Another embodiment is in Fig. 4 shown.
  • FIGS. 1 and 2 a section of a pneumatic cylinder is shown schematically. Due to the inventive design of the Sealing ring consists of the pneumatic cylinder only a few parts, which is advantageous in manufacturing technology and economic terms. The risk of assembly errors is reduced by the low-part construction.
  • the sealing ring is multifunctional and comprises a damping buffer 1, which from the piston 2, when this is in its end position ( Fig. 3 ) is touched adjacent.
  • the sealing ring has a static seal 4, with which the front side of the pneumatic cylinder arranged cover 5 is sealed relative to the cylinder tube 3.
  • the sealing ring has a dynamic seal 6 with a dynamically stressed sealing lip 7, which can be applied to the surface 8 to be sealed of the damping pin 9 ( Fig. 2 and Fig. 3 ).
  • the sealing ring has a flow-conducting connection opening 10 which connects the end faces 11, 12 of the sealing ring, wherein the connecting opening 10 in the embodiment shown here consists of a bore 16, which the piston 2 axially facing end face 11 of the sealing ring with an annular channel 17th connects, which is arranged on the cover 5 facing the end face 12 and is flow-conducting with the throttle bore 18 in communication.
  • Fig. 1 the piston 2 and the damping pin 9 are shown in a position shortly before the onset of cushioning. At the end of the stroke of the damping pin 9 dives into the dynamic seal 6 with its sealing lip 7, thereby closing off the remaining pressure chamber to be vented, which only via the connection opening 10, which consists of the bore 16 and the annular channel 17, and via the throttle bore 18 of the pneumatic cylinder can be relaxed.
  • connection opening 10 can be given, for example, by the fact that the bore 16, as described above, forms part of the sealing ring, the annular channel 17 but not in the sealing ring but in the lid 5 is located.
  • Such a design is significantly more complicated compared to the described as advantageous, since it requires a machining of the cover 5 for producing an annular channel or a precise shaping of the lid.
  • the annular channel 17, preferably as part of the sealing ring, is advantageous because it does not require the sealing ring to be positioned at an exact angular position in its installation space.
  • At least one ventilation opening 19 is provided, wherein preferably a plurality of evenly distributed in the circumferential direction arranged ventilation openings can be provided.
  • the static first seal 4 is snapped by its bead-shaped holding portion positively and sealingly into a congruently formed undercut 13 of the lid 5 and forms with this a preassembled unit.
  • the dynamic seal 6 comprises the dynamically stressed sealing lip 7, which has two sealing edges 14, 15, wherein the second sealing edge 15 shuts off the flow of air through the ventilation openings 19 during retraction into the end position.
  • the second sealing edge 15 When applied to the damping pin 9 sealing lip 7, the second sealing edge 15 is sealingly applied to the lid 5, wherein the second sealing edge 15 of the first sealing edge 14 is connected upstream in the direction of the pressurized cylinder tube 3.
  • Fig. 2 the piston 2 is shown, the end position damping has already used and the piston 2 at a significantly reduced speed in the direction of its in Fig. 3 moved shown end position.
  • Fig. 3 the piston 2 is shown in its end position on the damping buffer 1 fitting.
  • Fig. 4 a deviating embodiment is shown, in which the sealing lip 7 is bulged axially in the direction of the piston 2.

Abstract

The ring has a damping buffer (1) for a piston (2) with a pressurizing medium, where the piston is axially reciprocated in a cylinder tube (3). A static seal (4) seals the cylinder tube opposite to a cover (5) that is connected to a front side of the cylinder tube. A dynamic seal (6) with a dynamically loaded sealing rim (7) is attached to a sealing surface (8) of a damping pin (9), which is connected with the piston, during intended use of the sealing ring. A flow-conductive connection port (10) connects axial front faces (11, 12) of the sealing ring.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Dichtring anordnung mit einem Deckel und einem Dichtring für einen Pneumatikzylinder .The invention relates to a sealing ring arrangement with a lid and a sealing ring for a pneumatic cylinder.

Stand der TechnikState of the art

Dichtringe, die in Pneumatikzylindern zur Anwendung gelangen und stirnseitige Deckel gegenüber dem Zylinderrohr des Pneumatikzylinders abdichten, sind allgemein bekannt, beispielsweise aus der EP 1 447 571 B1 . Die Dichtringe, die die stirnseitigen Deckel jeweils gegenüber dem Zylinderrohr abdichten, sind durch übliche O-Ringe gebildet. Der Kolben weist stirnseitig beiderseits jeweils eine dynamisch beanspruchte Dichtung auf, zur gegenseitigen Abdichtung der mit einem Druckmittel beaufschlagbaren Räume. Als Endlagendämpfung ist ein stirnseitig am Kolben über Druckfedermittel beabstandet angebrachtes, zumindest bereichsweise eisenmetallisches Anschlagelement vorgesehen, das in einer kolbennahen Grundposition durch die Magnetkraft mindestens eines Permanentmagneten am Kolben fixiert ist und welches in einer kolbenfernen Arbeitsposition zur Endlagendämpfung in die jeweils benachbarte Druckkammer hineinragt, wobei ein außen am Zylindergehäuse angeordnetes verstellbares Magnetelement für die Erzeugung eines gegenüber dem Magnetfeld des Permanentmagneten im Wesentlichen invertierten Magnetfelds vorgesehen ist, um eine Positionsänderung des Anschlagelements aus der Grundposition in die Arbeitsposition zu erzielen, wenn der Kolben kurz vor Erreichen der Endlage das Magnetelement passiert. Der vorbekannte Pneumatikzylinder weist eine Vielzahl von Einzelteilen auf, was in fertigungstechnischer und wirtschaftlicher Hinsicht wenig zufriedenstellend ist.Sealing rings that are used in pneumatic cylinders for application and seal end caps against the cylinder tube of the pneumatic cylinder, are well known, for example from the EP 1 447 571 B1 , The sealing rings, which seal the frontal cover in each case with respect to the cylinder tube, are formed by conventional O-rings. The piston has the front side on both sides in each case a dynamically stressed seal, for mutual sealing of the acted upon by a pressure medium spaces. As end cushioning is a frontally spaced on the piston via compression spring means attached, at least partially iron metallic stop element is provided, which is fixed in a piston near basic position by the magnetic force of at least one permanent magnet on the piston and which in a piston remote working position for cushioning in the respective adjacent Protruding pressure chamber, wherein an externally arranged on the cylinder housing adjustable magnetic element for generating a relative to the magnetic field of the permanent magnet substantially inverted magnetic field is provided to achieve a change in position of the stop element from the basic position to the working position when the piston shortly before reaching the end position Magnetic element happens. The previously known pneumatic cylinder has a variety of items, which is unsatisfactory in manufacturing and economic terms.

Eine gattungsgemäße Dichtringanordnung ist aus FR 2658872 bekannt.A generic sealing ring assembly is made FR 2658872 known.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, einen Dichtring, einen Deckel mit Dichtring und einen Pneumatikzylinder mit Deckel und Dichtring derart weiterzuentwickeln, dass die jeweiligen Teile einfach und kostengünstig herstellbar sind. Insbesondere soll der Dichtring bei einfachem Aufbau multifunktional sein. Durch die geringe Anzahl von Teilen soll die Gefahr von Montagefehlern auf ein Minimum reduziert sein.The invention has for its object to further develop a sealing ring, a lid with a sealing ring and a pneumatic cylinder with cover and sealing ring such that the respective parts are simple and inexpensive to produce. In particular, the sealing ring should be multifunctional with a simple structure. Due to the small number of parts, the risk of assembly errors should be reduced to a minimum.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Auf vorteilhafte Ausgestaltungen nehmen die darauf jeweils rückbezogenen Unteransprüche Bezug.This object is achieved by the features of claim 1. In advantageous embodiments, the refer back to each dependent claims.

Der Werkstoff des Dichtrings, der nicht Gegenstand der Erfindung ist, kann durch einen an sich bekannten Dichtungs-Werkstoff gebildet sein und kann dadurch an die jeweiligen Gegebenheiten des Anwendungsfalles angepasst werden,The material of the sealing ring, which is not the subject of the invention, can be formed by a sealing material known per se and can thus be adapted to the particular circumstances of the application,

Der Dämpfungspuffer, die statische Dichtung und die dynamische Dichtung können einstückig ineinander übergehend und materialeinheitlich ausgebildet sein. Durch die Zusammenfassung in einem Bauteil ist die Gefahr von Montagefehlern auf ein Minimum begrenzt.The damping buffer, the static seal and the dynamic seal may be integral with each other and formed of the same material. By combining in one component, the risk of assembly errors is kept to a minimum.

Zur Abdichtung des Deckels gegenüber dem Zylinderrohr ist die statische Dichtung wulstförmig ausgebildet und in einen kongruent ausgebildeten Hinterschnitt des Deckels einschnappbar. Die statische Dichtung und der Deckel sind dadurch verliersicher miteinander verbunden und bilden eine vormontierbare Einheit, die sich einfach montieren lässt.To seal the lid relative to the cylinder tube, the static seal is bead-shaped and can be snapped into a congruently formed undercut of the lid. The static seal and the lid are thus captive connected to each other and form a preassembled unit that can be easily installed.

Die Dichtlippe kann eine erste Dichtkante umfassen, wobei die erste Dichtkante bei an dem Dämpfungszapfen angelegter Dichtlippe dichtend an den Deckel angelegt ist. Die Abdichtung der Dichtkante am Deckel ist dafür erforderlich, dass sich für die Endlagendämpfung ein ausreichend hoher Druck innerhalb des abzudichtenden Raums aufbaut und sich der Kolben anschließend gedämpft in seine Endlage bewegt, bis er sich an den Dämpfungspuffer anlegt.The sealing lip may comprise a first sealing edge, wherein the first sealing edge is sealingly applied to the cover when the sealing lip is applied to the sealing lip. The sealing of the sealing edge on the lid is required for that builds up a sufficiently high pressure within the sealed space for the cushioning and then the piston moves damped in its final position until it applies to the damping buffer.

Die Dichtlippe kann eine zweite Dichtkante umfassen, die bei an dem Dämpfungszapfen angelegter Dichtlippe dichtend an den Deckel angelegt ist, wobei die zweite Dichtkante der ersten Dichtkante in Richtung des druckbeaufschlagten Zylinderrohrs vorgeschaltet ist. Beim Bewegen des Kolbens in die Endlage berührt der Dämpfungszapfen die Dichtlippe und schließt somit die Druckkammer zum Kolben. Die zweite Dichtkante zum Deckel hat die Aufgabe, Luft abzusperren, die durch vorhandene Belüftungsöffnungen dringen könnte.The sealing lip may comprise a second sealing edge which is sealingly applied to the cover when the sealing lip is applied to the sealing lip, wherein the second sealing edge of the first sealing edge is connected upstream in the direction of the pressurized cylinder tube. When moving the piston in the end position of the damping pin touches the sealing lip and thus closes the pressure chamber to the piston. The second sealing edge to the lid has the task to shut off air that could penetrate through existing ventilation openings.

Die erste Dichtkante kann mit radialem Abstand außenseitig von der zweiten Dichtkante umschlossen sein. Dadurch kann die mehrstufige Funktion für die Bewegung des Kolbens in seine Endlage erreicht werden. Die Dichtkanten können eine axial entgegen dem Kolben offene, C-förmige Nut begrenzen.The first sealing edge may be enclosed at a radial distance on the outside of the second sealing edge. As a result, the multi-stage function for the movement of the piston can be achieved in its final position. The sealing edges can limit an axially opposite the piston open, C-shaped groove.

Nach einer anderen Ausgestaltung kann die Dichtlippe axial in Richtung des Kolbens vorgewölbt sein. Eine solche Ausgestaltung ist, bezogen auf die zuvor beschriebene Ausgestaltung, dann von Vorteil, wenn die Endlagendämpfungsdrücke sehr hohe Werte erreichen und eine Spaltextrusion zu befürchten ist. Diese Lippenausführung hat eine Druck aktivierende Wirkung. Der druckabgewandte Bereich der Dichtung und des Deckels kann so ausgeführt werden, dass keine Spaltextrusion vorkommen kann.According to another embodiment, the sealing lip may be bulged axially in the direction of the piston. Such a configuration is advantageous, based on the embodiment described above, when the end position damping pressures reach very high values and a gap extrusion is to be feared. This lip design has a pressure-activating effect. The pressure-facing portion of the seal and the lid can be carried out so that no gap extrusion can occur.

Die Verbindungsöffnung kann zumindest eine stirnseitig am Umfang angeordnete Bohrung umfassen und stirnseitig andererseits einen Ringkanal, der mit einer Drosselbohrung im Zylinderrohr strömungsleitend verbindbar ist. Die Verbindungsöffnung innerhalb des Dichtrings kann bei Herstellung des Dichtrings sofort mit eingeformt werden, sodass es aufwendiger, nachträglicher Verfahrensschritte zur Herstellung der Verbindungsöffnung nicht mehr bedarf. Je nachdem, wie die Charakteristik der Endlagendämpfung ausgelegt wird, besteht die Möglichkeit, mehrere, bevorzugt gleichmäßig in Umfangsrichtung verteilt angeordnete Bohrungen vorzusehen, die alle in den Ringkanal münden, wobei der Ringkanal mit der Drosselbohrung im Zylinderrohr strömungsleitend verbindbar ist.The connection opening may comprise at least one bore arranged on the front side on the circumference and, on the other hand, an annular channel on the face side which can be fluidically connected to a throttle bore in the cylinder tube. The connection opening within the sealing ring can be formed immediately with the production of the sealing ring, so that it no longer requires complicated, subsequent process steps for the preparation of the connection opening. Depending on how the characteristic of the end position damping is designed, it is possible to provide several, preferably uniformly distributed in the circumferential direction arranged holes, all open into the annular channel, the annular channel with the throttle bore in the cylinder tube is flow-connected.

Die Stirnseiten des Dichtrings können durch eine Belüftungsöffnung verbunden sein, wobei die Belüftungsöffnung das Zylinderrohr und die dem Zylinderrohr zugewandte Seite der zweiten Dichtkante strömungsleitend verbindet. Durch eine solche Ausgestaltung wird die Dichtlippe vom abzudichtenden Überdruck derart beaufschlagt, dass sich der Druck an beiden Dichtkanten ausgleicht und diese dichtend und ohne Gefahr des Abhebens an die abzudichtenden Oberflächen von Dämpfungszapfen und Deckel anlegen.The end faces of the sealing ring can be connected by a ventilation opening, wherein the ventilation opening connects the cylinder tube and the cylinder tube facing side of the second sealing edge in a flow-conducting manner. Such a configuration, the sealing lip is acted upon by the overpressure to be sealed so that the pressure on both sealing edges compensates and create these sealing and without risk of lifting on the surfaces to be sealed by damping pin and cover.

Das Medium, das abgedichtet wird, ist Luft.The medium that is sealed is air.

Außerdem betrifft die Erfindung eine Dichtringanordnung mit einem Deckel für einen Pneumatik-Zylinder, der mit einem Dichtring, wie zuvor beschrieben, verbunden ist und mit diesem eine vormontierbare Einheit bildet. Der Hinterschnitt im Deckel kann durch eine radial nach außen offene Nut gebildet sein, in der die wulstförmige statische Dichtung dichtend angeordnet ist.Moreover, the invention relates to a sealing ring assembly with a cover for a pneumatic cylinder, which is connected to a sealing ring, as described above, and forms with this a preassemblable unit. The undercut in the cover may be formed by a radially outwardly open groove in which the bead-shaped static seal is sealingly arranged.

Kurzbeschreibung der ZeichnungBrief description of the drawing

Ein schematisch dargestelltes Ausführungsbeispiel wird nachfolgend anhand der Figuren 1 bis 3 näher erläutert. Die Figuren 1 bis 3 zeigen den erfindungsgemäßen Dichtring, den erfindungsgemäßen Deckel und den Pneumatikzylinder in voneinander abweichenden Betriebszuständen.A schematically illustrated embodiment will be described below with reference to FIGS. 1 to 3 explained in more detail. The FIGS. 1 to 3 show the sealing ring according to the invention, the lid according to the invention and the pneumatic cylinder in different operating states.

Ein weiteres Ausführungsbeispiel ist in Fig. 4 gezeigt.Another embodiment is in Fig. 4 shown.

Ausführung der ErfindungEmbodiment of the invention

  • In Fig. 1 ist ein Pneumatikzylinder gezeigt, bei dem sich der Kolben 2 druckmittelbeaufschlagt und ungebremst in Richtung seiner Endlage bewegt.In Fig. 1 a pneumatic cylinder is shown, in which the piston 2 pressure medium and moves unrestrained in the direction of its end position.
  • In Fig. 2 ist der Kolben aus Figur 1 gezeigt, wobei die Endlagendämpfung bereits eingesetzt hat und sich der Kolben 2 mit deutlich verringerter Geschwindigkeit in Richtung seiner Endlage bewegt.In Fig. 2 the piston is out FIG. 1 shown, with the cushioning has already used and the piston 2 moves at a significantly reduced speed in the direction of its end position.
  • In Fig. 3 ist ein Ausführungsbeispiel eines Pneumatikzylinders gezeigt mit dem erfindungsgemäßen Deckel und dem erfindungsgemäßen Dichtring, wobei sich der Kolben 2 in seiner Endlage befindet.In Fig. 3 is an embodiment of a pneumatic cylinder shown with the lid according to the invention and the sealing ring according to the invention, wherein the piston 2 is in its end position.

In den Figuren 1 und 2 ist ein Ausschnitt aus einem Pneumatikzylinder schematisch gezeigt. Durch die erfindungsgemäße Ausgestaltung des Dichtrings besteht der Pneumatikzylinder nur aus wenigen Teilen, was in fertigungstechnischer und wirtschaftlicher Hinsicht vorteilhaft ist. Auch die Gefahr von Montagefehlern ist durch den teilearmen Aufbau reduziert.In the FIGS. 1 and 2 a section of a pneumatic cylinder is shown schematically. Due to the inventive design of the Sealing ring consists of the pneumatic cylinder only a few parts, which is advantageous in manufacturing technology and economic terms. The risk of assembly errors is reduced by the low-part construction.

Der Dichtring ist multifunktional und umfasst einen Dämpfungspuffer 1, der vom Kolben 2, wenn sich dieser in seiner Endlage befindet (Fig. 3), anliegend berührt wird. Außerdem weist der Dichtring eine statische Dichtung 4 auf, mit der der stirnseitig am Pneumatikzylinder angeordnete Deckel 5 gegenüber dem Zylinderrohr 3 abgedichtet ist. Darüber hinaus weist der Dichtring eine dynamische Dichtung 6 mit einer dynamisch beanspruchten Dichtlippe 7 auf, die an die abzudichtende Oberfläche 8 des Dämpfungszapfens 9 anlegbar ist (Fig. 2 und Fig. 3). Weiter weist der Dichtring eine strömungsleitende Verbindungsöffnung 10 auf, die die Stirnseiten 11, 12 des Dichtrings verbindet, wobei die Verbindungsöffnung 10 in dem hier gezeigten Ausführungsbeispiel aus einer Bohrung 16 besteht, die die dem Kolben 2 axial zugewandte Stirnseite 11 des Dichtrings mit einem Ringkanal 17 verbindet, der auf der dem Deckel 5 zugewandten Stirnseite 12 angeordnet ist und strömungsleitend mit der Drosselbohrung 18 in Verbindung steht.The sealing ring is multifunctional and comprises a damping buffer 1, which from the piston 2, when this is in its end position ( Fig. 3 ) is touched adjacent. In addition, the sealing ring has a static seal 4, with which the front side of the pneumatic cylinder arranged cover 5 is sealed relative to the cylinder tube 3. In addition, the sealing ring has a dynamic seal 6 with a dynamically stressed sealing lip 7, which can be applied to the surface 8 to be sealed of the damping pin 9 ( Fig. 2 and Fig. 3 ). Further, the sealing ring has a flow-conducting connection opening 10 which connects the end faces 11, 12 of the sealing ring, wherein the connecting opening 10 in the embodiment shown here consists of a bore 16, which the piston 2 axially facing end face 11 of the sealing ring with an annular channel 17th connects, which is arranged on the cover 5 facing the end face 12 and is flow-conducting with the throttle bore 18 in communication.

In Fig. 1 sind der Kolben 2 und der Dämpfungszapfen 9 in einer Position kurz vor Einsetzen der Endlagendämpfung gezeigt. Am Ende des Hubs taucht der Dämpfungszapfen 9 in die dynamische Dichtung 6 mit ihrer Dichtlippe 7, schließt dadurch den restlichen zu entlüftenden Druckraum ab, der nur noch über die Verbindungsöffnung 10, die aus der Bohrung 16 und dem Ringkanal 17 besteht, und über die Drosselbohrung 18 des Pneumatikzylinders entspannt werden kann.In Fig. 1 the piston 2 and the damping pin 9 are shown in a position shortly before the onset of cushioning. At the end of the stroke of the damping pin 9 dives into the dynamic seal 6 with its sealing lip 7, thereby closing off the remaining pressure chamber to be vented, which only via the connection opening 10, which consists of the bore 16 and the annular channel 17, and via the throttle bore 18 of the pneumatic cylinder can be relaxed.

Eine abweichende Ausgestaltung der Verbindungsöffnung 10 kann beispielsweise dadurch gegeben sein, dass die Bohrung 16, wie zuvor beschrieben, einen Bestandteil des Dichtrings bildet, sich der Ringkanal 17 jedoch nicht im Dichtring sondern im Deckel 5 befindet. Eine solche Ausgestaltung ist im Vergleich zu der als vorteilhaft beschriebenen deutlich aufwändiger, da es einer spanabhebenden Bearbeitung des Deckels 5 zur Herstellung eines Ringkanals oder einer genauen Formgebung des Deckels bedarf. Der Ringkanal 17, bevorzugt als Bestandteil des Dichtrings, ist deshalb vorteilhaft, weil dadurch der Dichtring nicht winkelgenau in seinem Einbauraum positioniert werden muss.A different embodiment of the connection opening 10 can be given, for example, by the fact that the bore 16, as described above, forms part of the sealing ring, the annular channel 17 but not in the sealing ring but in the lid 5 is located. Such a design is significantly more complicated compared to the described as advantageous, since it requires a machining of the cover 5 for producing an annular channel or a precise shaping of the lid. The annular channel 17, preferably as part of the sealing ring, is advantageous because it does not require the sealing ring to be positioned at an exact angular position in its installation space.

Zum schnellen Belüften des Zylinderraums ist zumindest eine Belüftungsöffnung 19 vorgesehen, wobei bevorzugt mehrere, gleichmäßig in Umfangsrichtung verteilt angeordnete Belüftungsöffnungen vorgesehen werden können.For rapid venting of the cylinder space at least one ventilation opening 19 is provided, wherein preferably a plurality of evenly distributed in the circumferential direction arranged ventilation openings can be provided.

Die statische erste Dichtung 4 ist durch ihren wulstförmigen Halteabschnitt formschlüssig und dichtend in einen kongruent ausgebildeten Hinterschnitt 13 des Deckels 5 eingeschnappt und bildet mit diesem eine vormontierbare Einheit.The static first seal 4 is snapped by its bead-shaped holding portion positively and sealingly into a congruently formed undercut 13 of the lid 5 and forms with this a preassembled unit.

Die dynamische Dichtung 6 umfasst die dynamisch beanspruchte Dichtlippe 7, die zwei Dichtkanten 14, 15 aufweist, wobei die zweite Dichtkante 15 den Luftstrom durch die Belüftungsöffnungen 19 während des Einfahrens in die Endlage absperrt. Bei an dem Dämpfungszapfen 9 angelegter Dichtlippe 7 ist die zweite Dichtkante 15 dichtend an den Deckel 5 angelegt, wobei die zweite Dichtkante 15 der ersten Dichtkante 14 in Richtung des druckbeaufschlagten Zylinderrohrs 3 vorgeschaltet ist.The dynamic seal 6 comprises the dynamically stressed sealing lip 7, which has two sealing edges 14, 15, wherein the second sealing edge 15 shuts off the flow of air through the ventilation openings 19 during retraction into the end position. When applied to the damping pin 9 sealing lip 7, the second sealing edge 15 is sealingly applied to the lid 5, wherein the second sealing edge 15 of the first sealing edge 14 is connected upstream in the direction of the pressurized cylinder tube 3.

In Fig. 2 ist der Kolben 2 gezeigt, wobei die Endlagendämpfung bereits eingesetzt hat und sich der Kolben 2 mit deutlich verringerter Geschwindigkeit in Richtung seiner in Fig. 3 dargestellten Endlage bewegt.In Fig. 2 the piston 2 is shown, the end position damping has already used and the piston 2 at a significantly reduced speed in the direction of its in Fig. 3 moved shown end position.

In Fig. 3 ist der Kolben 2 in seiner Endlage am Dämpfungspuffer 1 anliegend gezeigt.In Fig. 3 the piston 2 is shown in its end position on the damping buffer 1 fitting.

In Fig. 4 ist ein davon abweichendes Ausführungsbeispiel gezeigt, bei dem die Dichtlippe 7 axial in Richtung Kolben 2 vorgewölbt ist.In Fig. 4 a deviating embodiment is shown, in which the sealing lip 7 is bulged axially in the direction of the piston 2.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Dämpfungspufferdamping buffer
22
Kolbenpiston
33
Zylinderrohrcylinder tube
44
statische Dichtungstatic seal
55
Deckelcover
66
dynamische Dichtungdynamic seal
77
dynamische Dichtlippedynamic sealing lip
88th
abzudichtende Oberflächeto be sealed surface
99
Dämpfungszapfendamping pin
1010
Verbindungsöffnungconnecting opening
1111
linke Stirnseite des Dichtringsleft end of the sealing ring
1212
rechte Stirnseite des DichtringsRight end of the sealing ring
1313
Hinterschnittundercut
1414
erste Dichtkantefirst sealing edge
1515
zweite Dichtkantesecond sealing edge
1616
Bohrungdrilling
1717
Ringkanalannular channel
1818
Drosselbohrungthrottle bore
1919
Belüftungsöffnungventilation opening

Claims (12)

  1. Sealing ring arrangement for a pneumatic cylinder, the sealing ring arrangement comprising an end cap (5) and a damping buffer (1) for a piston (2) which can be loaded by a pressure medium, which piston (2) can move axially to and fro in a cylinder tube (3), and the sealing ring arrangement further comprising at least one static seal (4) for sealing the cylinder tube (3) with respect to the end cap (5) connected to the cylinder tube (3) at the end, and a dynamic seal (6) with at least one dynamically loaded sealing lip (7) which, during the intended use of the sealing ring, can be positioned against the surface (8) to be sealed of a damping pin (9), which is connected to the piston (2) and can move axially to and fro therewith, which damping pin (9) has an increased diameter in the vicinity of the piston, wherein the sealing ring arrangement furthermore comprises at least one flow-conducting connection port (10), which connects the axial end faces (11, 12) of the sealing ring, characterized in that the static seal (4) has a bead-shaped design and can be latched into an undercut (13) formed congruently in the end cap (5).
  2. Sealing ring arrangement according to Claim 1, characterized in that the damping buffer (1), the static seal (4) and the dynamic seal (6) are formed from the same material and so as to merge into one another in one piece.
  3. Sealing ring arrangement according to either of Claims 1 and 2, characterized in that the sealing lip (7) comprises a first sealing edge (14), and in that the first sealing edge (14) is positioned against the end cap (5) in sealing fashion when the sealing lip (7) is positioned against the damping pin (9).
  4. Sealing ring arrangement according to Claim 3, characterized in that the sealing lip (7) comprises a second sealing edge (15), which is positioned against the end cap (5) in sealing fashion when the sealing lip (7) is positioned against the damping pin (9), and in that the second sealing edge (15) is arranged upstream from the first sealing edge (14) in the direction of the pressurized cylinder tube (3).
  5. Sealing ring arrangement according to Claim 4, characterized in that the first sealing edge (14) is surrounded at a radial distance on the outside by the second sealing edge (15).
  6. Sealing ring arrangement according to either of Claims 4 and 5, characterized in that the sealing edges (14, 15) delimit a C-shaped groove which is open axially opposite to the piston (2).
  7. Sealing ring arrangement according to one of Claims 1 to 4, characterized in that the sealing lip (7) is precurved axially in the direction of the piston (2).
  8. Sealing ring arrangement according to one of Claims 1 to 7, characterized in that the connection port (10) comprises at least one bore (16) arranged on the circumference at one end face and, at the other end face, an annular duct (17), which can be connected to a throttle bore (18) in the cylinder tube (3) so as to conduct flow.
  9. Sealing ring arrangement according to Claim 8 and one of Claims 4 to 6, characterized in that the end faces (11, 12) are connected by way of a ventilation opening (19), and in that the ventilation opening (19) connects the cylinder tube (3) and that side of the second sealing edge (15) facing towards the cylinder tube (3) so as to conduct flow.
  10. Sealing ring arrangement according to one of Claims 1 to 9, characterized in that the medium to be sealed off is air.
  11. Sealing ring arrangement according to one of Claims 1 to 10, wherein the end cap is connected to the sealing ring and, together with the latter, forms a unit which can be preassembled.
  12. sealing ring arrangement according to Claim 11, characterized in that the undercut (13) is formed by a radially outwardly open groove.
EP06022912.7A 2006-11-03 2006-11-03 Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder Active EP1918592B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT06022912T ATE484682T1 (en) 2006-11-03 2006-11-03 SEALING RING WITH INTEGRATED END POSITION DAMPING, COVER WITH SEALING RING AND PNEUMATIC CYLINDER WITH COVER AND SEALING RING
EP06022912.7A EP1918592B2 (en) 2006-11-03 2006-11-03 Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder
DE502006008098T DE502006008098D1 (en) 2006-11-03 2006-11-03 Sealing ring with integrated end cushioning, cover with sealing ring and pneumatic cylinder with cover and sealing ring
TW096136999A TW200837297A (en) 2006-11-03 2007-10-03 Sealing ring, cap with sealing ring and pneumatic cylinder with cap and sealing ring
US11/982,158 US7866252B2 (en) 2006-11-03 2007-11-01 Gasket, cover with gasket, and pneumatic cylinder with cover and gasket
JP2007286928A JP4847431B2 (en) 2006-11-03 2007-11-05 Seal ring, cap with seal ring, and pneumatic cylinder with cap and seal ring
US12/958,859 US8234970B2 (en) 2006-11-03 2010-12-02 Gasket, cover with gasket, and pneumatic cylinder with cover and gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06022912.7A EP1918592B2 (en) 2006-11-03 2006-11-03 Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder

Publications (3)

Publication Number Publication Date
EP1918592A1 EP1918592A1 (en) 2008-05-07
EP1918592B1 true EP1918592B1 (en) 2010-10-13
EP1918592B2 EP1918592B2 (en) 2014-01-01

Family

ID=37891698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06022912.7A Active EP1918592B2 (en) 2006-11-03 2006-11-03 Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder

Country Status (6)

Country Link
US (2) US7866252B2 (en)
EP (1) EP1918592B2 (en)
JP (1) JP4847431B2 (en)
AT (1) ATE484682T1 (en)
DE (1) DE502006008098D1 (en)
TW (1) TW200837297A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009014817B4 (en) 2009-03-25 2011-07-21 FESTO AG & Co. KG, 73734 Fluid operated linear actuator
IT1401377B1 (en) * 2010-08-09 2013-07-18 Skf Ab DRIVING AND HOLDING UNIT, IN PARTICULAR FOR A STYLE OF A SINGLE-PIPE SHOCK ABSORBER AND ANULAR HOLDING COMPLEX FOR THE SAME
TWI401376B (en) * 2011-01-21 2013-07-11 Chime Ball Technology Co Ltd Piston airtight device
JP5793346B2 (en) * 2011-05-31 2015-10-14 日立オートモティブシステムズ株式会社 Cylinder device
DE102012103595B4 (en) 2012-04-24 2015-10-15 Parker Hannifin Manufacturing Germany GmbH & Co. KG Sealing arrangement for a cylinder sealing device of a pneumatic cylinder
SG11201609641SA (en) * 2014-05-19 2016-12-29 Microflex Technologies Llc Ring seal with sealing surface extension
CN114087360A (en) * 2021-10-18 2022-02-25 东风汽车集团股份有限公司 Plugging device and part

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100907B (en) † 1958-01-24 1961-03-02 Cie Parisienne D Outil A Air C Pressurized jack
BE793149A (en) † 1971-12-27 1973-06-21 Westinghouse Bremsen Apparate LIMIT SWITCH CUSHIONING DEVICE
JPS57205403A (en) 1981-06-12 1982-12-16 Hitachi Ltd Formation of polymer film
JPS6128086Y2 (en) † 1981-06-24 1986-08-21
FR2658872A1 (en) * 1990-02-27 1991-08-30 Joucomatic Sa Improvements made to thrust cylinders for pressurised fluid
DE29501243U1 (en) † 1995-01-27 1995-04-20 Festo Kg Working cylinder
DE10305954B3 (en) 2003-02-12 2004-07-01 Rexroth Mecman Gmbh End of stroke damping system for pneumatic cylinder uses coil springs on either side of piston, together with permanent magnets passing near electromagnets fastened to outside of cylinder

Also Published As

Publication number Publication date
DE502006008098D1 (en) 2010-11-25
TW200837297A (en) 2008-09-16
EP1918592B2 (en) 2014-01-01
US20110074114A1 (en) 2011-03-31
JP4847431B2 (en) 2011-12-28
EP1918592A1 (en) 2008-05-07
JP2008116050A (en) 2008-05-22
US20080122187A1 (en) 2008-05-29
US7866252B2 (en) 2011-01-11
US8234970B2 (en) 2012-08-07
ATE484682T1 (en) 2010-10-15

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