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EP0655558A1 - Pneumatic valve device with at least two fixed together subassemblies - Google Patents

Pneumatic valve device with at least two fixed together subassemblies Download PDF

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Publication number
EP0655558A1
EP0655558A1 EP94116969A EP94116969A EP0655558A1 EP 0655558 A1 EP0655558 A1 EP 0655558A1 EP 94116969 A EP94116969 A EP 94116969A EP 94116969 A EP94116969 A EP 94116969A EP 0655558 A1 EP0655558 A1 EP 0655558A1
Authority
EP
European Patent Office
Prior art keywords
valve device
pneumatic valve
housing
housing modules
bolts
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
EP94116969A
Other languages
German (de)
French (fr)
Other versions
EP0655558B1 (en
Inventor
Guenter Mayer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0655558A1 publication Critical patent/EP0655558A1/en
Application granted granted Critical
Publication of EP0655558B1 publication Critical patent/EP0655558B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0821—Attachment or sealing of modular units to each other
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets

Definitions

  • the invention is based on a pneumatic valve device with at least two housing modules fastened to one another according to the type specified in the preamble of claim 1.
  • Such a pneumatic valve device is already known from WO 92/04568, in which a plurality of housing modules of the same construction are flanged to avoid individual pressure medium lines, the desired pressure medium connections being produced in the parting plane between two flange surfaces by plugs and tubular couplings, which in the channel openings of the housing modules are used.
  • the tubular couplings essentially only take on the function of the pressure medium feed-through and the seal from the outside.
  • a pin-hole arrangement is additionally provided for centering two housing modules with respect to one another.
  • each housing module has a protruding fastening foot and one to it on two opposite flange surfaces of a cuboid housing has a suitable recess for receiving the mounting foot of the adjacent housing module.
  • Such screw connections build complex, expensive and take up a lot of space, which is not available especially with small valves.
  • valve device with housing modules fastened to one another is known, which are designed as pilot valve and main control valve.
  • a tubular bolt lying in the parting plane takes over the functions of the pressure medium connection and the centering.
  • this valve device only a single pin is provided, which uses additional O-rings for the sealing and which has a collar on the outside for its axial adjustment.
  • This valve device works with a hydraulic medium and is designed for high pressures, which is why the housing modules are held together by screw connections, which are correspondingly complex and expensive.
  • the cuboid housing module for receiving several valve axes is made of plastic, the housing module carrying on one long side a metallic connection plate to which the pressure medium lines can be attached.
  • the connection plate itself can be fastened to the housing module by screwing or gluing, alternatively a detachable holder is provided, wherein sleeve-shaped bolts made of rubber-like material are inserted into the two components in the region of a parting plane.
  • Each bolt has an outer collar for sealing in the parting plane.
  • each half of the bolt has an external annular bead which is semi-annular in cross section and which fits into the corresponding Ring grooves can be tied into the channels of both components.
  • the main disadvantage is that the rubber-like bolts cannot transmit greater mechanical forces and therefore the metallic connecting plate is sunk in a suitable groove in the housing module. Furthermore, the channels for receiving the semicircular ring beads must be machined in an expensive manner. Furthermore, only a detachable plug connection can be achieved here, which is not desired in many cases. In addition, the flexible bolts make quick and easy assembly difficult.
  • the pneumatic valve device according to the invention with at least two housing modules attached to one another with the characterizing features of claim 1 has the advantage that it enables a compact and inexpensive plug connection between the housing modules with a simple design.
  • the plug-in connection by means of hollow bolts is particularly space-saving, since additional screws as holding members are omitted and the functions of centering, sealing and holding are concentrated in the smallest space. Because the screws are omitted, there are no dirt corners in the area of the screw heads.
  • O-rings can be dispensed with, since the ring beads themselves take over the sealing with their cutting edge. When the bolts are mounted, their cutting edges can cling to the housing modules so strongly that a secure and firm connection between the two housing modules is achieved.
  • This plug connection is therefore particularly suitable for small-sized valves, especially if a pilot valve is attached to a directional control valve on the front. It is particularly favorable if the bolts are made of steel for a pilot valve with a plastic housing and for a main control valve with an aluminum housing in order to ensure a safe, tight and permanent connection. Furthermore, it is expedient if, in the case of particularly high demands on the tightness and the mounting between two housing modules, a bolt is used in which the cutting edges are arranged twice.
  • FIG. 1 shows a longitudinal section through a pneumatic Valve device with the plug connection according to the invention in a simplified representation
  • FIG. 2 the pin according to FIG. 1 on an enlarged scale
  • FIGS. 3 and 4 a second or third embodiment of the pin for the plug connection according to FIG. 1.
  • FIG. 1 shows a simplified representation of a longitudinal section through a pneumatic valve device with at least two housing modules fastened to one another, the valve device itself being designed as an electromagnetically pilot-operated 5/2-way valve 10, its main control valve 11 and its associated pilot valve 12 forming the two housing modules.
  • Both housing modules 11, 12 abut with one another with their end flange surfaces 13 and 14 in a parting plane 15 and are permanently connected to one another by a plug connection 16.
  • the main control valve 11 is designed in a manner known per se as a 5/2 control valve, the housing 17 of which has a cuboid shape and accommodates a longitudinally movable control slide 19 in a continuous slide bore 18.
  • the control slide 19 controls in the usual way the connection between an inlet connection 21, two motor connections 22, 23 and two return connections 24, 25, for which purpose it can be deflected in two working positions.
  • Two actuating pistons 26, 27 are provided for actuating the control slide 19, of which the first actuating piston 26 is slidably guided in a housing 28 of the pilot valve 12.
  • the second actuating piston 27 is slidably arranged in a cover 29, which is opposite to the pilot valve 12 on the front flange surface 31 of the Main control valve 11 is attached.
  • Both actuating pistons 26, 27 are each assigned a pressure chamber 32 or 33, which can be controlled via two solenoid valves 34, 25.
  • Both solenoid valves 34, 35 are arranged one above the other in the housing 28 of the pilot valve 12 in the plane of the drawing and are each designed as a 3/2-way valve which can be controlled via the electrical connection 36.
  • the two solenoid valves 34, 35 in the pilot valve 12 are supplied with pressure medium via a first control channel 37, which runs in the housing 17 of the main control valve 11 from the inlet connection 21 into the lower half of the flange surface 13, penetrates the parting plane 15 and closes in the housing 28 of the pilot valve 12 leads to the inlet connections of the solenoid valves 34, 35.
  • a control connection of the first solenoid valve 34 is connected to the pressure chamber 32 on the first actuating piston 26.
  • a control connection of the second solenoid valve 35 has a second control channel 38 with the pressure chamber 33 on the second actuating piston 27, the second control channel 38 from the housing 28 of the pilot valve 12 through the flange surfaces 13, 14 in the housing 17 of the main valve 11 and further on Cover 29 extends into the pressure chamber 33.
  • the drain connections of the solenoid valves 34, 35 are connected to the return connection 24 in a manner not shown.
  • the two control channels 37, 38 are each guided by a hollow bolt 41 and 42, which form parts of the plug connection 16.
  • the two bolts 41, 42 are identical to one another and are made of steel.
  • Such a bolt 41 is shown in FIG. 2 on an enlarged scale, to which reference is made in the following.
  • the bolt 41 essentially consists of a tubular sleeve 43, the through bore 44 of which has approximately the diameter of a control channel 37 or 38.
  • two annular beads 45, 46 are arranged at a distance from each other, each of which consists of a conical chamfer 47 which ends in a cutting edge 48.
  • the tapered chamfers 47 are arranged in the two halves of the bolt 41 in such a way that their diameter increases counter to the direction of insertion; thus the two cutting edges 48 face each other.
  • the two ends are provided with bevels 49 for easier insertion of the bolts 41.
  • the distance between the annular beads 45, 46 from one another is approximately as large as the outside diameter of the sleeve 43, so that a sufficiently large cylindrical surface area remains for guiding tasks.
  • the bolt 41 is thus rotationally symmetrical to its longitudinal axis 51 and can be easily manufactured as a turned part; in addition, it is symmetrical to a central transverse plane 52, which facilitates its handling during assembly.
  • blind-hole-like receiving bores 53 to 56 are arranged in the housing 17 of the control valve 11 and in the housing 28 of the pilot valve 12, each starting from the flange surfaces 13 and 14 and lying in the control channels 37 and 38.
  • These receiving bores 53 to 56 are all of the same diameter and their axial length corresponds to half the length of the bolt 41 or 42.
  • the bolts 41, 42 can therefore be inserted into the receiving bores 53, 54 as far as they will go.
  • the outer diameter of the bolts 41, 42 and the inner diameter of the receiving bores 53 to 56 are coordinated with one another such that, on the one hand, the two housing modules 11, 12 are precisely centered and guided with respect to one another and, on the other hand, the annular beads 45, 46 with their cutting edges 48 are in such a way claws the housings 28 and 17, respectively, that the plug connection 16 is an inseparable, secure and firm mounting of both housing modules 11, 12 results in each other.
  • a kind of pine cone connection is produced.
  • By clawing the annular beads 45, 46 in the two housing modules 11, 12, a secure sealing of the pressure medium-carrying control channels 37, 38 is simultaneously effected to the outside.
  • This connector 16 has the advantage that the bolts 41, 42 are made of a harder material than that of the housing 17 and 28.
  • the housing 17 of the main control valve 11 is made of aluminum, while the housing 28 of the pilot valve 12 is made of plastic consists.
  • the plug connection 16 is extremely space-saving, with a multitude of functions being integrated in a confined space, namely in particular the centering of the two housing modules 11, 12 relative to one another, the implementation pressure medium channels through a parting plane 15, the sealing of pressure medium channels to the outside and above all the mechanical mounting of both housings 17, 28 to each other.
  • the advantage here is that the connector 16 can exert such holding forces that the arrangement of pressurized actuating pistons in the housing 28 of the pilot valve 12 is possible. Due to the large number of integrated functions, this connector is particularly suitable for small valves.
  • the plug connection 16 can therefore expediently be used in valve devices 10 in which the housings 17, 28 each have an approximately equal rectangular housing cross section, the thickness of the housing 17 or 28 being only slightly larger than the outer diameter of an actuating piston 26, 27.
  • a pilot valve with two solenoid valves 34, 35 arranged one above the other can thereby be attached to the main control valve 11 in a particularly expedient and simple manner, the plug connection 16 establishing an inseparable connection and thus preventing an unwanted dismantling of the pilot valve 12.
  • FIG. 3 shows a second embodiment of a bolt 60, which differs from the bolt 41 according to FIG. 2 only in that each annular bead 45, 46 is assigned a second annular bead 61 which carries an additional cutting edge 62.
  • the double arrangement of cutting edges 48, 62 makes it possible to meet higher tightness requirements in special cases.
  • FIG. 4 shows a bolt 65 which differs from the bolt 41 according to FIG. 2 only in that the annular beads 45, 46 now have a trapezoidal cross section.
  • the stability of the cutting edge 48 can be increased for special purposes and the safety of the holding function can be increased.
  • Fig. 1 shown application of the connector 16 in a 5/2-way valve in longitudinal slide type is particularly useful, the connector can be carried out with three or more bolts if necessary. It is also possible to provide such a plug connection for fastening the cover 29. The plug connection can also be used very generally in other housing modules in which there are comparable conditions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)

Abstract

A pneumatic valve device (10) is proposed in which an electromagnetically actuated pilot-control valve (12) can be mounted at the end face on a housing (17) of a main control valve (11) of a spool type of construction by means of an undetachable push-in arrangement (16). Two tubular pins (41, 42) have annular beads (45, 46) lying at their outer periphery and having cutting edges (48) and are pushed into location bores (53 to 56) of both housings (17, 28) in such a way as to pass through a parting plane (15), the cutting edges (48) catching in the material of both housings (17, 28) and as a result producing a type of fir-cone connection. Here, the pins (41, 42) assume the function of centring and holding both housings (17, 28) against one another as well as the function of passing through the pressure medium and of sealing and permit an exceptionally compact, cost-effective and easy-to-assemble type of construction of the push-in connection (16), which is suitable in particular for directional control valves of small construction. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer pneumatischen Ventileinrichtung mit wenigstens zwei aneinander befestigten Gehäusemodulen nach der im Oberbegriff des Anspruchs 1 näher angegebenen Gattung.The invention is based on a pneumatic valve device with at least two housing modules fastened to one another according to the type specified in the preamble of claim 1.

Es ist schon eine solche pneumatische Ventileinrichtung aus der WO 92/04568 bekannt, bei der zur Vermeidung von einzelnen Druckmittelleitungen mehrere Gehäusemodule gleichen Aufbaus aneinandergeflanscht werden, wobei die gewünschten Druckmittelverbindungen in der zwischen zwei Flanschflächen liegenden Trennebene durch Stopfen und rohrförmige Kupplungen hergestellt werden, welche in die Kanalöffnungen der Gehäusemodule eingesetzt werden. Dabei übernehmen die rohrförmigen Kupplungen im wesentlichen nur die Funktion der Druckmitteldurchführung und der Abdichtung nach außen hin. Für die Zentrierung von zwei Gehäusemodulen zueinander ist zusätzlich eine Stift-Loch-Anordnung vorgesehen. Für eine Befestigung der Gehäusemodule an einer Grundplatte ist vorgesehen, daß jeder Gehäusemodul an zwei entgegengesetzt liegenden Flanschflächen eines quaderförmigen Gehäuses jeweils einen abstehenden Befestigungsfuß und eine dazu passende Ausnehmung zur Aufnahme des Befestigungsfußes des benachbarten Gehäusemoduls aufweist. Solche Schraubverbindungen bauen aufwendig, teuer und beanspruchen viel Raum, der vor allem bei klein bauenden Ventilen nicht vorhanden ist. Zudem ergeben sich aufwendige Montagevorgänge.Such a pneumatic valve device is already known from WO 92/04568, in which a plurality of housing modules of the same construction are flanged to avoid individual pressure medium lines, the desired pressure medium connections being produced in the parting plane between two flange surfaces by plugs and tubular couplings, which in the channel openings of the housing modules are used. The tubular couplings essentially only take on the function of the pressure medium feed-through and the seal from the outside. A pin-hole arrangement is additionally provided for centering two housing modules with respect to one another. For fastening the housing modules to a base plate, it is provided that each housing module has a protruding fastening foot and one to it on two opposite flange surfaces of a cuboid housing has a suitable recess for receiving the mounting foot of the adjacent housing module. Such screw connections build complex, expensive and take up a lot of space, which is not available especially with small valves. In addition, there are complex assembly processes.

Ferner ist aus der DE 27 01 598 C2 eine Ventileinrichtung mit aneinander befestigten Gehäusemodulen bekannt, die als Vorsteuerventil und Hauptsteuerventil ausgebildet sind. Dabei übernimmt ein in der Trennebene liegender rohrförmiger Bolzen die Funktionen der Druckmittelverbindung und der Zentrierung. Bei dieser Ventileinrichtung ist nur ein einziger Bolzen vorgesehen, der für die Abdichtung zusätzliche O-Ringe verwendet und der für seine axiale Justierung außen einen Bund aufweist. Diese Ventileinrichtung arbeitet mit einem hydraulischen Medium und ist für hohe Drücke ausgebildet, weshalb die Gehäusemodule durch Schraubverbindungen zusammengehalten werden, die entsprechend aufwendig und teuer sind.Furthermore, from DE 27 01 598 C2 a valve device with housing modules fastened to one another is known, which are designed as pilot valve and main control valve. A tubular bolt lying in the parting plane takes over the functions of the pressure medium connection and the centering. In this valve device, only a single pin is provided, which uses additional O-rings for the sealing and which has a collar on the outside for its axial adjustment. This valve device works with a hydraulic medium and is designed for high pressures, which is why the housing modules are held together by screw connections, which are correspondingly complex and expensive.

Ferner ist aus der DE 35 22 955 A1 eine pneumatische Ventileinrichtung bekannt, deren quaderförmiger Gehäusemodul zur Aufnahme mehrerer Ventilachsen aus Kunststoff besteht, wobei der Gehäusemodul an einer Längsseite eine metallische Anschlußplatte trägt, an der die Druckmittelleitungen befestigt werden können. Die Anschlußplatte selbst kann durch Verschrauben oder Verkleben an dem Gehäusemodul befestigt werden, wobei alternativ dazu eine lösbare Halterung vorgesehen ist, wobei hülsenförmige Bolzen aus gummiartigem Material im Bereich einer Trennebene in die beiden Bauelemente eingesteckt sind. Dabei weist jeder Bolzen zur Abdichtung einen in der Trennebene liegenden Außenbund auf. Ferner hat jede Bolzenhälfte einen außenliegenden, im Querschnitt halbringförmigen Ringwulst, die in entsprechende Ringnuten in den Kanälen beider Bauelemente eingeknüpft werden. Von Nachteil ist vor allem, daß die gummiartigen Bolzen keine größeren mechanischen Kräfte übertragen können und deshalb die metallische Anschlußplatte in einer passenden Nut des Gehäusemoduls versenkt angeordnet ist. Ferner müssen die Kanäle zur Aufnahme der halbkreisförmigen Ringwulste in kostspieliger Weise bearbeitet werden. Ferner läßt sich hier lediglich eine lösbare Steckverbindung erreichen, die in vielen Fällen nicht erwünscht ist. Außerdem erschweren die nachgiebigen Bolzen eine schnelle und einfache Montage.Furthermore, from DE 35 22 955 A1 a pneumatic valve device is known, the cuboid housing module for receiving several valve axes is made of plastic, the housing module carrying on one long side a metallic connection plate to which the pressure medium lines can be attached. The connection plate itself can be fastened to the housing module by screwing or gluing, alternatively a detachable holder is provided, wherein sleeve-shaped bolts made of rubber-like material are inserted into the two components in the region of a parting plane. Each bolt has an outer collar for sealing in the parting plane. Furthermore, each half of the bolt has an external annular bead which is semi-annular in cross section and which fits into the corresponding Ring grooves can be tied into the channels of both components. The main disadvantage is that the rubber-like bolts cannot transmit greater mechanical forces and therefore the metallic connecting plate is sunk in a suitable groove in the housing module. Furthermore, the channels for receiving the semicircular ring beads must be machined in an expensive manner. Furthermore, only a detachable plug connection can be achieved here, which is not desired in many cases. In addition, the flexible bolts make quick and easy assembly difficult.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße pneumatische Ventileinrichtung mit wenigstens zwei aneinander befestigten Gehäusemodulen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß sie bei einfacher Bauart eine kompakte und kostengünstige Steckverbindung zwischen den Gehäusemodulen ermöglicht. Die Steckverbindung mittels hohler Bolzen ist besonders platzsparend, da zusätzliche Schrauben als Halteglieder entfallen und die Funktionen der Zentrierung, der Abdichtung und der Halterung auf engstem Raum konzentriert sind. Durch den Wegfall der Schrauben können auch keine Schmutzecken im Bereich der Schraubenköpfe entstehen. Bei der erfindungsgemäßen Steckverbindung kann auf O-Ringe verzichtet werden, da die Ringwulste mit ihrer Schneidkante selbst die Abdichtung übernehmen. Bei den montierten Bolzen können sich deren Schneidkanten in den Gehäusemodulen so stark verkrallen, daß eine sichere und feste Verbindung zwischen beiden Gehäusemodulen erreicht wird. Auf diese Weise wird eine unlösbare Steckverbindung geschaffen, so daß eine Sicherheit gegen ungewolltes Öffnen der Verbindung gegeben ist. Zudem lassen sich hier mit relativ einfachen Mitteln ausreichende Haltekräfte erreichen, die besonders eine Anwendung der Steckverbindung bei klein bauenden Wegeventilen ermöglichen. Die Funktionen der Zentrierung, der Abdichtung, der Halterung und der Druckmitteldurchführung werden hier mit einfachen, als Drehteilen ausgebildeten Bauelementen erreicht, die zudem auch eine stabile Bauweise ermöglichen. Es können deshalb kubische Baukörper mit ebenen Flanschflächen unmittelbar aneinander befestigt werden, so daß eine kostengünstige Bauweise ermöglicht wird. Die zur Aufnahme der Bolzen vorgesehenen Sacklochbohrungen sind ohne Abstufungen und lassen sich leicht bearbeiten; zudem dienen sie als axialer Anschlag für die Bolzen. Diese Bauweise der Steckverbindung begünstigt eine schnelle und leichte Montage. Diese Steckverbindung eignet sich daher besonders für klein bauende Ventile, insbesondere wenn ein Vorsteuerventil stirnseitig an einem Wegeventil angebaut wird. Besonders günstig ist es, wenn bei einem Vorsteuerventil mit Kunststoffgehäuse und bei einem Hauptsteuerventil mit Aluminiumgehäuse die Bolzen aus Stahl hergestellt werden, um eine sichere, dichte und dauerhafte Verbindung zu gewährleisten. Weiterhin ist es zweckmäßig, wenn bei besonders hohen Anforderungen an die Dichtheit und die Halterung zwischen beiden Gehäusemodulen ein Bolzen verwendet wird, bei dem die Schneidkanten doppelt angeordnet sind.The pneumatic valve device according to the invention with at least two housing modules attached to one another with the characterizing features of claim 1 has the advantage that it enables a compact and inexpensive plug connection between the housing modules with a simple design. The plug-in connection by means of hollow bolts is particularly space-saving, since additional screws as holding members are omitted and the functions of centering, sealing and holding are concentrated in the smallest space. Because the screws are omitted, there are no dirt corners in the area of the screw heads. In the plug connection according to the invention, O-rings can be dispensed with, since the ring beads themselves take over the sealing with their cutting edge. When the bolts are mounted, their cutting edges can cling to the housing modules so strongly that a secure and firm connection between the two housing modules is achieved. In this way, an inseparable plug connection is created, so that there is security against unintentional opening of the connection. In addition, sufficient holding forces can be achieved here with relatively simple means, in particular the use of the plug connection allow for small directional valves. The functions of centering, sealing, holding and the pressure medium bushing are achieved here with simple components designed as turned parts, which also enable a stable construction. Cubic structures with flat flange surfaces can therefore be fastened directly to one another, so that an inexpensive construction is made possible. The blind holes provided for receiving the bolts are without gradations and are easy to machine; they also serve as an axial stop for the bolts. This design of the connector promotes quick and easy installation. This plug connection is therefore particularly suitable for small-sized valves, especially if a pilot valve is attached to a directional control valve on the front. It is particularly favorable if the bolts are made of steel for a pilot valve with a plastic housing and for a main control valve with an aluminum housing in order to ensure a safe, tight and permanent connection. Furthermore, it is expedient if, in the case of particularly high demands on the tightness and the mounting between two housing modules, a bolt is used in which the cutting edges are arranged twice.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1 angegebenen pneumatischen Ventileinrichtung möglich.The measures listed in the subclaims allow advantageous developments and improvements of the pneumatic valve device specified in claim 1.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Längsschnitt durch eine pneumatische Ventileinrichtung mit der erfindungsgemäßen Steckverbindung in vereinfachter Darstellung, Figur 2 den Bolzen nach Figur 1 in vergrößertem Maßstab, Figur 3 und 4 eine zweite bzw. dritte Ausführungsform des Bolzens für die Steckverbindung nach Figur 1.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. 1 shows a longitudinal section through a pneumatic Valve device with the plug connection according to the invention in a simplified representation, FIG. 2 the pin according to FIG. 1 on an enlarged scale, FIGS. 3 and 4 a second or third embodiment of the pin for the plug connection according to FIG. 1.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Die Figur 1 zeigt in vereinfachter Darstellung einen Längsschnitt durch eine pneumatische Ventileinrichtung mit wenigstens zwei aneinander befestigten Gehäusemodulen, wobei die Ventileinrichtung selbst als elektromagnetisch vorgesteuertes 5/2-Wegeventil 10 ausgebildet ist, wobei dessen Hauptsteuerventil 11 und dessen zugeordnetes Vorsteuerventil 12 die beiden Gehäusemodule bilden. Beide Gehäusemodule 11, 12 stoßen mit ihren stirnseitigen Flanschflächen 13 bzw. 14 in einer Trennebene 15 aneinander und sind durch eine Steckverbindung 16 in unlösbarer Weise fest miteinander verbunden.1 shows a simplified representation of a longitudinal section through a pneumatic valve device with at least two housing modules fastened to one another, the valve device itself being designed as an electromagnetically pilot-operated 5/2-way valve 10, its main control valve 11 and its associated pilot valve 12 forming the two housing modules. Both housing modules 11, 12 abut with one another with their end flange surfaces 13 and 14 in a parting plane 15 and are permanently connected to one another by a plug connection 16.

Das Hauptsteuerventil 11 ist in an sich bekannter Weise als 5/2-Steuerventil ausgebildet, dessen Gehäuse 17 eine quaderförmige Form aufweist und in einer durchgängigen Schieberbohrung 18 einen längsbeweglichen Steuerschieber 19 aufnimmt. Der Steuerschieber 19 steuert in üblicher Weise die Verbindung zwischen einem Zulaufanschluss 21, zwei Motoranschlüssen 22, 23 und zwei Rücklaufanschlüssen 24, 25, wozu er in zwei Arbeitsstellungen auslenkbar ist. Zum Betätigen des Steuerschiebers 19 sind zwei Stellkolben 26, 27 vorgesehen, von denen der ersten Stellkolben 26 in einem Gehäuse 28 des Vorsteuerventils 12 gleitend geführt ist. Der zweite Stellkolben 27 ist in einem Deckel 29 gleitend angeordnet, der entgegengesetzt zum Vorsteuerventil 12 an der stirnseitigen Flanschfläche 31 des Hauptsteuerventils 11 angebaut ist. Beiden Stellkolben 26, 27 ist jeweils ein Druckraum 32 bzw. 33 zugeordnet, die über zwei Magnetventile 34, 25 ansteuerbar sind. Beide Magnetventile 34, 35 sind in dem Gehäuse 28 des Vorsteuerventils 12 in der Zeichenebene übereinander angeordnet und jeweils als 3/2-Ventil ausgebildet, welche über den elektrischen Anschluß 36 ansteuerbar sind.The main control valve 11 is designed in a manner known per se as a 5/2 control valve, the housing 17 of which has a cuboid shape and accommodates a longitudinally movable control slide 19 in a continuous slide bore 18. The control slide 19 controls in the usual way the connection between an inlet connection 21, two motor connections 22, 23 and two return connections 24, 25, for which purpose it can be deflected in two working positions. Two actuating pistons 26, 27 are provided for actuating the control slide 19, of which the first actuating piston 26 is slidably guided in a housing 28 of the pilot valve 12. The second actuating piston 27 is slidably arranged in a cover 29, which is opposite to the pilot valve 12 on the front flange surface 31 of the Main control valve 11 is attached. Both actuating pistons 26, 27 are each assigned a pressure chamber 32 or 33, which can be controlled via two solenoid valves 34, 25. Both solenoid valves 34, 35 are arranged one above the other in the housing 28 of the pilot valve 12 in the plane of the drawing and are each designed as a 3/2-way valve which can be controlled via the electrical connection 36.

Die beiden Magnetventile 34, 35 im Vorsteuerventil 12 werden über einen ersten Steuerkanal 37 mit Druckmittel versorgt, der im Gehäuse 17 des Hauptsteuerventils 11 vom Zulaufanschluß 21 in die untere Hälfte der Flanschfläche 13 verläuft, die Trennebene 15 durchdringt und im Gehäuse 28 des Vorsteuerventils 12 zu den Zulaufanschlüssen der Magnetventile 34, 35 führt. Ein Steueranschluß des ersten Magnetventils 34 steht mit dem Druckraum 32 am ersten Stellkolben 26 in Verbindung. Ein Steueranschluß des zweiten Magnetventils 35 hat über einen zweiten Steuerkanal 38 mit dem Druckraum 33 am zweiten Stellkolben 27 Verbindung, wobei der zweite Steuerkanal 38 vom Gehäuse 28 des Vorsteuerventils 12 durch die Flanschflächen 13, 14 hindurch im Gehäuse 17 des Hauptventils 11 und weiter über den Deckel 29 in den Druckraum 33 verläuft. Die Ablaufanschlüsse der Magnetventile 34, 35 sind in nicht näher gezeichneter Weise mit dem Rücklaufanschluß 24 verbunden.The two solenoid valves 34, 35 in the pilot valve 12 are supplied with pressure medium via a first control channel 37, which runs in the housing 17 of the main control valve 11 from the inlet connection 21 into the lower half of the flange surface 13, penetrates the parting plane 15 and closes in the housing 28 of the pilot valve 12 leads to the inlet connections of the solenoid valves 34, 35. A control connection of the first solenoid valve 34 is connected to the pressure chamber 32 on the first actuating piston 26. A control connection of the second solenoid valve 35 has a second control channel 38 with the pressure chamber 33 on the second actuating piston 27, the second control channel 38 from the housing 28 of the pilot valve 12 through the flange surfaces 13, 14 in the housing 17 of the main valve 11 and further on Cover 29 extends into the pressure chamber 33. The drain connections of the solenoid valves 34, 35 are connected to the return connection 24 in a manner not shown.

Im Bereich der Trennebene 15 sind die beiden Steuerkanäle 37, 38 jeweils durch einen hohlen Bolzen 41 bzw. 42 geführt, welche Teile der Steckverbindung 16 bilden. Die beiden Bolzen 41, 42 sind untereinander gleich ausgebildet und bestehen aus Stahl. Ein solcher Bolzen 41 ist in Figur 2 in vergrößertem Maßstab dargestellt, worauf im folgenden Bezug genommen wird. Der Bolzen 41 besteht im wesentlichen aus einer rohrförmigen Hülse 43, deren Durchgangsbohrung 44 etwa den Durchmesser eines Steuerkanals 37 bzw. 38 aufweist. Am Außenumfang der Hülse 43 sind im Abstand voneinander zwei Ringwülste 45, 46 angeordnet, die jeweils aus einer kegeligen Fase 47 betehen, die in einer Schneidkante 48 ausläuft. Die kegeligen Fasen 47 sind in den beiden Hälften des Bolzens 41 so angeordnet, daß sich ihr Durchmesser entgegen der Einsteckrichtung vergrößert; somit sind die beiden Schneidkanten 48 einander zugewandt. Zum leichteren Einstecken der Bolzen 41 sind die beiden Enden mit Anschrägungen 49 versehen. Der Abstand der Ringwülste 45, 46 voneinander ist etwa so groß wie der Außendurchmesser der Hülse 43 gewählt, so daß eine ausreichend große zylindrische Mantelfläche für Führungsaufgaben verbleibt. Der Bolzen 41 ist somit rotationssymmetrisch zu seiner Längsachse 51 ausgebildet und läßt sich als Drehteil leicht herstellen; zudem ist er symmetrisch zu einer mittleren Querebene 52 ausgebildet, was seine Handhabung bei der Montage erleichtert.In the area of the parting plane 15, the two control channels 37, 38 are each guided by a hollow bolt 41 and 42, which form parts of the plug connection 16. The two bolts 41, 42 are identical to one another and are made of steel. Such a bolt 41 is shown in FIG. 2 on an enlarged scale, to which reference is made in the following. The bolt 41 essentially consists of a tubular sleeve 43, the through bore 44 of which has approximately the diameter of a control channel 37 or 38. On the outer circumference the sleeve 43, two annular beads 45, 46 are arranged at a distance from each other, each of which consists of a conical chamfer 47 which ends in a cutting edge 48. The tapered chamfers 47 are arranged in the two halves of the bolt 41 in such a way that their diameter increases counter to the direction of insertion; thus the two cutting edges 48 face each other. The two ends are provided with bevels 49 for easier insertion of the bolts 41. The distance between the annular beads 45, 46 from one another is approximately as large as the outside diameter of the sleeve 43, so that a sufficiently large cylindrical surface area remains for guiding tasks. The bolt 41 is thus rotationally symmetrical to its longitudinal axis 51 and can be easily manufactured as a turned part; in addition, it is symmetrical to a central transverse plane 52, which facilitates its handling during assembly.

Wie die Figur 1 näher zeigt, sind im Gehäuse 17 des Steuerventils 11 sowie dem Gehäuse 28 des Vorsteuerventils 12 jeweils von den Flanschflächen 13 bzw. 14 ausgehende und in den Steuerkanälen 37 bzw. 38 liegende sacklochartige Aufnahmebohrungen 53 bis 56 angeordnet. Diese Aufnahmebohrungen 53 bis 56 sind im Durchmesser alle gleich groß ausgeführt und ihre axiale Länge entspricht der halben Länge des Bolzens 41 bzw. 42. Die Bolzen 41, 42 können daher bis zum Anschlag in die Aufnahmebohrungen 53, 54 eingesteckt werden. Die Außendurchmesser der Bolzen 41, 42 sowie der Innendurchmesser der Aufnahmebohrungen 53 bis 56 ist so aufeinander abgestimmt, daß einerseits eine genaue Zentrierung und Führung der beiden Gehäusemodule 11, 12 zueinander erreicht wird und andererseits die Ringwülste 45, 46 mit ihren Schneidkanten 48 sich derart in den Gehäusen 28 bzw. 17 verkrallen, daß die Steckverbindung 16 eine unlösbare, sichere und feste Halterung beider Gehäusemodule 11, 12 aneinander ergibt. Durch das Verkrallen der Schneidkanten 58 in den Werkstoffen der Gehäuse 17, 28 wird dabei eine Art Tannenzapfenverbindung hergestellt. Durch das Verkrallen der Ringwülste 45, 46 in beiden Gehäusemodulen 11, 12 wird gleichzeitig eine sichere Abdichtung der druckmittelführenden Steuerkanäle 37, 38 nach außen hin bewirkt. Bei dieser Steckverbindung 16 ist von Vorteil, daß die Bolzen 41, 42 aus einem härteren Material bestehen, als das der Gehäuse 17 und 28. Im vorliegenden Fall besteht das Gehäuse 17 des Hauptsteuerventils 11 aus Aluminium, während das Gehäuse 28 des Vorsteuerventils 12 aus Kunststoff besteht.As FIG. 1 shows in more detail, blind-hole-like receiving bores 53 to 56 are arranged in the housing 17 of the control valve 11 and in the housing 28 of the pilot valve 12, each starting from the flange surfaces 13 and 14 and lying in the control channels 37 and 38. These receiving bores 53 to 56 are all of the same diameter and their axial length corresponds to half the length of the bolt 41 or 42. The bolts 41, 42 can therefore be inserted into the receiving bores 53, 54 as far as they will go. The outer diameter of the bolts 41, 42 and the inner diameter of the receiving bores 53 to 56 are coordinated with one another such that, on the one hand, the two housing modules 11, 12 are precisely centered and guided with respect to one another and, on the other hand, the annular beads 45, 46 with their cutting edges 48 are in such a way claws the housings 28 and 17, respectively, that the plug connection 16 is an inseparable, secure and firm mounting of both housing modules 11, 12 results in each other. By clawing the cutting edges 58 in the materials of the housing 17, 28, a kind of pine cone connection is produced. By clawing the annular beads 45, 46 in the two housing modules 11, 12, a secure sealing of the pressure medium-carrying control channels 37, 38 is simultaneously effected to the outside. This connector 16 has the advantage that the bolts 41, 42 are made of a harder material than that of the housing 17 and 28. In the present case, the housing 17 of the main control valve 11 is made of aluminum, while the housing 28 of the pilot valve 12 is made of plastic consists.

Mit der Steckverbindung 16 lassen sich auf einfache Weise und auf engstem Bauraum ausreichend große Haltekräfte erzeugen, so daß zusätzliche Schraubverbindungen zum Zusammenhalten der Gehäusemodule 11, 12 entfallen. Da die Bolzen 41, 42 mit ihren Schneidkanten 48 zugleich eine Dichtfunktion übernehmen, können auch zusätzliche Dichtringe entfallen, was eine kostengünstige Bauweise des Ventils 10 begünstigt. Die Aufnahmebohrungen 53 bis 56 weisen keine Abstufung auf und die Trennebene 15 kann eben ausgebildet werden, was eine einfache Fertigung erleichtert. Durch die symmetrische Ausbildung der Bolzen 41, 42 und die gleich ausgebildeten Aufnahmebohrungen 53 bis 56 wird vor allem eine leichte und schnelle Montage der beiden Gehäusemodule 11, 12 aneinander erreicht. Durch die Anordnung der beiden Bolzen 41, 42 beiderseits des Steuerschiebers 19 bzw. des Stellkolbens 26 baut die Steckverbindung 16 äußerst platzsparend, wobei auf engstem Raum eine Vielzahl von Funktionen integriert ist, nämlich insbesondere die Zentrierung der beiden Gehäusemodule 11, 12 zueinander, die Durchführung von Druckmittelkanälen durch eine Trennebene 15, die Abdichtung von Druckmittelkanälen nach außen hin und vor allem die mechanische Halterung beider Gehäuse 17, 28 aneinander. Vorteilhaft ist dabei der Umstand, daß die Steckverbindung 16 solche Haltekräfte ausüben kann, daß die Anordnung von druckbeaufschlagten Stellkolben im Gehäuse 28 des Vorsteuerventils 12 möglich ist. Durch die Vielzahl der integrierten Funktionen eignet sich diese Steckverbindung vor allem für klein bauende Ventile. Die Steckverbindung 16 läßt sich deshalb zweckmäßig bei Ventileinrichtungen 10 verwenden, bei denen die Gehäuse 17, 28 jeweils einen etwa gleich großen rechteckigen Gehäusequerschnitt aufweisen, wobei die Dicke des Gehäuses 17 bzw. 28 nur wenig größer ist als der Außendurchmesser eines Stellkolbens 26, 27. Ein Vorsteuerventil mit zwei übereinander angeordneten Magnetventilen 34, 35 kann dadurch in besonders zweckmäßiger und einfacher Weise an das Hauptsteuerventil 11 angebaut werden, wobei die Steckverbindung 16 eine unlösbare Verbindung herstellt und somit ein ungewolltes Demontieren des Vorsteuerventils 12 verhindert.Sufficiently large holding forces can be generated with the plug connection 16 in a simple manner and in the smallest of installation spaces, so that additional screw connections for holding the housing modules 11, 12 together are not required. Since the bolts 41, 42 also perform a sealing function with their cutting edges 48, additional sealing rings can also be omitted, which favors an inexpensive construction of the valve 10. The receiving bores 53 to 56 have no gradation and the parting plane 15 can be made flat, which facilitates simple manufacture. Due to the symmetrical design of the bolts 41, 42 and the identically designed receiving bores 53 to 56, an easy and quick assembly of the two housing modules 11, 12 is achieved. Due to the arrangement of the two bolts 41, 42 on both sides of the control slide 19 and the control piston 26, the plug connection 16 is extremely space-saving, with a multitude of functions being integrated in a confined space, namely in particular the centering of the two housing modules 11, 12 relative to one another, the implementation pressure medium channels through a parting plane 15, the sealing of pressure medium channels to the outside and above all the mechanical mounting of both housings 17, 28 to each other. The advantage here is that the connector 16 can exert such holding forces that the arrangement of pressurized actuating pistons in the housing 28 of the pilot valve 12 is possible. Due to the large number of integrated functions, this connector is particularly suitable for small valves. The plug connection 16 can therefore expediently be used in valve devices 10 in which the housings 17, 28 each have an approximately equal rectangular housing cross section, the thickness of the housing 17 or 28 being only slightly larger than the outer diameter of an actuating piston 26, 27. A pilot valve with two solenoid valves 34, 35 arranged one above the other can thereby be attached to the main control valve 11 in a particularly expedient and simple manner, the plug connection 16 establishing an inseparable connection and thus preventing an unwanted dismantling of the pilot valve 12.

Die Figur 3 zeigt eine zweite Ausführungsform eines Bolzens 60, der sich vom Bolzen 41 nach Figur 2 lediglich dadurch unterscheidet, daß jedem Ringwulst 45, 46 ein zweiter Ringwulst 61 zugeordnet ist, der eine zusätzliche Schneidkante 62 trägt. Durch die Doppelanordnung von Schneidkanten 48, 62 lassen sich in besonderen Fällen höhere Anforderungen an die Dichtheit erfüllen.FIG. 3 shows a second embodiment of a bolt 60, which differs from the bolt 41 according to FIG. 2 only in that each annular bead 45, 46 is assigned a second annular bead 61 which carries an additional cutting edge 62. The double arrangement of cutting edges 48, 62 makes it possible to meet higher tightness requirements in special cases.

Die Figur 4 zeigt als dritte Ausführungsform einen Bolzen 65, der sich vom Bolzen 41 nach Figur 2 lediglich dadurch unterscheidet, daß die Ringwülste 45, 46 nunmehr einen trapezförmigen Querschnitt aufweisen. Dadurch läßt sich für besondere Zwecke die Stabilität der Schneidkante 48 erhöhen und dabei die Sicherheit der Haltefunktion vergrößern.As a third embodiment, FIG. 4 shows a bolt 65 which differs from the bolt 41 according to FIG. 2 only in that the annular beads 45, 46 now have a trapezoidal cross section. As a result, the stability of the cutting edge 48 can be increased for special purposes and the safety of the holding function can be increased.

Selbstverständlich sind an der gezeigten Ausführungsform Änderungen möglich, ohne vom Gedanken der Erfindung abzuweichen. Obwohl die in Fig. 1 gezeigte Anwendung der Steckverbindung 16 bei einem 5/2-Wegeventil in Längsschieberbauart besonders zweckmäßig ist, kann die Steckverbindung bei Bedarf auch mit drei oder mehr Bolzen ausgeführt werden. Ebenso ist es möglich, zur Befestigung des Deckels 29 eine derartige Steckverbindung vorzusehen. Auch läßt sich die Steckverbindung ganz allgemein bei anderen Gehäusemodulen anwenden, bei denen verlgeichbare Verhältnisse vorliegen.Of course, changes can be made to the embodiment shown without departing from the spirit of the invention. Although the in Fig. 1 shown application of the connector 16 in a 5/2-way valve in longitudinal slide type is particularly useful, the connector can be carried out with three or more bolts if necessary. It is also possible to provide such a plug connection for fastening the cover 29. The plug connection can also be used very generally in other housing modules in which there are comparable conditions.

Claims (13)

Pneumatische Ventileinrichtung mit wenigstens zwei aneinander befestigten Gehäusemodulen, die mit ihren Flanschflächen in einer Trennebene aneinander anliegen und mit diese Trennebene durchdringenden, Druckmittel führenden Kanälen, wobei wenigstens ein Kanal in der Trennebene durch einen hohen Bolzen geführt ist, der zentrierend in beide Gehäusemodule ragt und den Kanal nach außen hin abdichtet, und mit die beiden Gehäusemodule zusammenhaltenden Mitteln, dadurch gekennzeichnet, daß die Trennebene (15) von wenigstens zwei parallel und im Abstand voneinander angeordneten, hohlen Bolzen (41, 42) durchdrungen wird, von denen jeder Bolzen (41, 42) an seinem Außenumfang mindestens zwei, jeweils einem der Gehäusemodule (11, 12) zugeordnete Ringwülste (45, 46) aufweist, an denen jeweils mindestens eine Schneidkante (48) so ausgebildet ist, daß die Schneidkanten (48) beider Ringwülste (45, 46) einander zugewandt sind und sich in Aufnahmebohrungen (53-56) beider Gehäusemodule (11, 12) verhaken, so daß die Bolzen (41, 42) die Haltefunktion für die beiden Gehäusemodule (11, 12) aneinander mit übernehmen.Pneumatic valve device with at least two housing modules fastened to one another, which abut one another with their flange surfaces in a parting plane and with channels carrying pressure medium penetrating this parting plane, wherein at least one duct is guided in the parting plane by a high bolt which projects into both housing modules and which centers Seals channel to the outside, and with means holding the two housing modules together, characterized in that the parting plane (15) is penetrated by at least two hollow bolts (41, 42) arranged parallel and at a distance from one another, each of which bolts (41, 42) has on its outer circumference at least two ring beads (45, 46) assigned to one of the housing modules (11, 12), on each of which at least one cutting edge (48) is designed such that the cutting edges (48) of both ring beads (45, 46) face each other and are located in receiving bores (53-56) of both housing modules (11, 12) hook, so that the bolts (41, 42) take over the holding function for the two housing modules (11, 12) together. Pneumatische Ventileinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Gehäusemodule (11, 12) die quaderförmigen Gehäuse (17, 28) eines Hauptsteuerventils (11) und eines zugeordneten Vorsteuerventils (12) sind, die mit ihren stirnseitigen Flanschflächen (13, 14) aneinander stoßen.Pneumatic valve device according to claim 1, characterized in that the two housing modules (11, 12) are the cuboid housings (17, 28) of a main control valve (11) and an associated pilot valve (12), which with their end flange surfaces (13, 14) bump into each other. Pneumatische Ventileinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Gehäusemodul (12) für das Vorsteuerventil in seinem Gehäuse (28) zwei Magnetventile (34, 35) und einen Stellkolben (26) zum Betätigen eines Steuerschiebers (19) im Hauptsteuerventil (11) aufweist.Pneumatic valve device according to claim 1 or 2, characterized in that the housing module (12) for the pilot valve in its housing (28) has two solenoid valves (34, 35) and an actuating piston (26) for actuating a control slide (19) in the main control valve (11 ) having. Pneumatische Ventileinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die im wesentlichen rohrförmig ausgebildeten Bolzen (41, 42) zu ihrer Längsachse (51) rotationssymmetrisch und zu einer mittleren Querebene (52) symmetrisch ausgebildet sind.Pneumatic valve device according to one of claims 1 to 3, characterized in that the essentially tubular bolts (41, 42) are rotationally symmetrical to their longitudinal axis (51) and symmetrical to a central transverse plane (52). Pneumatische Ventileinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der an jeder Bolzenhälfte außen angeordnete Ringwulst (45, 46) als eine kegelige Fase (47) mit sich entgegen der Einsteckeinrichtung vergrößerndem Durchmesser ausgebildet ist, die an ihrem Ende mit großem Durchmesser die Schneidkante (48) bildet.Pneumatic valve device according to Claim 4, characterized in that the annular bead (45, 46) arranged on the outside of each pin half is designed as a conical chamfer (47) with a diameter increasing towards the plug-in device, which at its end has the large diameter of the cutting edge (48 ) forms. Pneumatische Ventileinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Bolzen (41, 42) untereinander gleich ausgebildet sind und ihre sacklochartigen Aufnahmebohrungen (53-56) in beiden Gehäusemodulen jeweils (11, 12) die halbe Länge des Bolzens (41, 42) aufweisen.Pneumatic valve device according to one of claims 1 to 5, characterized in that the bolts (41, 42) are identical to one another and their blind hole-like receiving bores (53-56) in each of the two housing modules (11, 12) are half the length of the bolt (41 , 42). Pneumatische Ventileinrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß der Abstand zwischen zwei Ringwulsten (45, 46) an einem Bolzen (41) etwa dessem Außendurchmesser gleicht.Pneumatic valve device according to one of claims 4 to 6, characterized in that the distance between two annular beads (45, 46) on a bolt (41) is approximately equal to its outer diameter. Pneumatische Ventileinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß jede Hälfte eines Bolzens (60) mit zwei oder mehr Schneidkanten (48, 62) ausgeführt ist.Pneumatic valve device according to one of claims 1 to 7, characterized in that each half of a bolt (60) is designed with two or more cutting edges (48, 62). Pneumatische Ventileinrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß die kegelige Fase in einem zylindrischen Bund (66) endet, der die Schneidkante (48) bildet (Fig. 4).Pneumatic valve device according to one of claims 5 to 8, characterized in that the conical chamfer ends in a cylindrical collar (66) which forms the cutting edge (48) (Fig. 4). Pneumatische Ventileinrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Bolzen (41, 42) aus härterem Material als der Gehäusewerkstoff der Gehäusemodule (11, 12) besteht.Pneumatic valve device according to one of claims 1 to 9, characterized in that the bolt (41, 42) consists of harder material than the housing material of the housing modules (11, 12). Pneumatische Ventileinrichtung nach Anspruch 10, dadurch gekennzeichnet, daß der Bolzen (41, 42) aus Stahl hergestellt ist.Pneumatic valve device according to claim 10, characterized in that the bolt (41, 42) is made of steel. Pneumatische Ventileinrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Gehäuse (17, 28) beider Gehäusemodule (11, 12) aus Kunststoff und/oder Aluminium hergestellt sind.Pneumatic valve device according to claim 10 or 11, characterized in that the housings (17, 28) of both housing modules (11, 12) are made of plastic and / or aluminum. Pneumatische Ventileinrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Gehäuse (17, 28) beider Gehäusemodule (11, 12) einen etwa gleich großen rechteckigen Querschnitt aufweisen und mit ebenen Flanschflächen (13, 14) stirnseitig aneinander stoßen, und daß die beiden Bolzen (41, 42) beidseitig zum Steuerschieber (19) bzw. zum Stellkolben (26) angeordnet sind, wobei der Stellkolben (26) insbesondere im Gehäuse (17) des Vorsteuerventils (11) liegt.Pneumatic valve device according to claim 13, characterized in that the housings (17, 28) of both housing modules (11, 12) have an approximately equal rectangular cross section and abut each other with flat flange surfaces (13, 14), and that the two bolts ( 41, 42) are arranged on both sides of the control slide (19) or the control piston (26), the control piston (26) being located in particular in the housing (17) of the pilot valve (11).
EP94116969A 1993-11-30 1994-10-27 Pneumatic valve device with at least two fixed together subassemblies Expired - Lifetime EP0655558B1 (en)

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Publication number Priority date Publication date Assignee Title
CN109764161A (en) * 2019-01-25 2019-05-17 鼎斯（上海）液压科技有限公司 Combined-type sheet-type slide valve system and combined method
EP4083483A1 (en) * 2021-04-29 2022-11-02 Georg Fischer Rohrleitungssysteme AG Pressure control valve
WO2022228825A1 (en) * 2021-04-29 2022-11-03 Georg Fischer Rohrleitungssysteme Ag Pressure control valve
US12292128B2 (en) 2021-04-29 2025-05-06 Georg Fischer Rohrleitungssysteme Ag Pressure control valve

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DE59406408D1 (en) 1998-08-13
EP0655558B1 (en) 1998-07-08
ES2118297T3 (en) 1998-09-16
DE4340770A1 (en) 1995-06-01

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