EP2537730B1 - Buffer or coupling for a rail vehicle - Google Patents

Buffer or coupling for a rail vehicle Download PDF

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Publication number
EP2537730B1
EP2537730B1 EP12004650.3A EP12004650A EP2537730B1 EP 2537730 B1 EP2537730 B1 EP 2537730B1 EP 12004650 A EP12004650 A EP 12004650A EP 2537730 B1 EP2537730 B1 EP 2537730B1
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EP
European Patent Office
Prior art keywords
buffer
coupling
lubricant
abutting surface
plunger
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.)
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Application number
EP12004650.3A
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German (de)
French (fr)
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EP2537730A1 (en
Inventor
Rolf Kamps
Marijan Plecko
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.)
Schwab Verkehrstechnik AG
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Schwab Verkehrstechnik AG
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Priority to PL12004650T priority Critical patent/PL2537730T3/en
Publication of EP2537730A1 publication Critical patent/EP2537730A1/en
Application granted granted Critical
Publication of EP2537730B1 publication Critical patent/EP2537730B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/18—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/16—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

Definitions

  • the invention relates to a buffer or a coupling for a rail vehicle according to the preamble of claim 1.
  • Such generic buffers or couplings in rail vehicles are usually made of high-quality metal, in particular steel, hardened steel, cast iron or cast steel.
  • high-quality metal in particular steel, hardened steel, cast iron or cast steel.
  • the publication DE-A-33 11 483 discloses a metering device for automatically supplying metered amounts of lubricant from a reservoir onto the end face of the buffer plate.
  • the metering of the lubricant can take place in various ways, which takes place as a function of relative displacements of the impact surface to the vehicle frame.
  • the metering device with a metering pump with a pump piston and non-return valves may also have a further storage chamber, through which the lubricant is conveyed only after several pump strokes, which is effected by a coupled to the pump piston plunger gear.
  • the disadvantage here is that the lubricating dispenser supplies lubricant to the impact surface only when the rail vehicle is running and curves are present, so that such relative displacements of the butt surface are made possible to the vehicle frame.
  • a complex construction is required, which is prone to the harsh conditions in rail vehicle operation.
  • the object of the present invention is to provide a buffer or a coupling for a rail vehicle, by means of which by simple constructive measures an increased life or improved functionality is achieved.
  • the object is achieved in that the buffer or the coupling is associated with a device for metered lubrication of the abutting surface of the buffer plate.
  • this device has a lubricant dispenser and at least one outgoing from this outgoing leading to the contact surface connecting line, wherein the lubricant dispenser is designed such that an automatic lubricant supply takes place continuously or at predetermined time intervals in a respective metered amount.
  • the in Fig. 1 shown buffer 10 has a plunger 11 which is fixed to a rail vehicle not shown in detail, such as a railway car, freight cars or the like in a conventional manner.
  • the plunger 11 is encompassed by a buffer sleeve 12 which can be displaced axially thereon. Both the buffer sleeve 11 and the plunger 12 are formed substantially hollow cylindrical, the plunger 12 is arranged coaxially with the buffer sleeve 11.
  • the plunger 12 has a cylinder tube 12 'and a buffer plate 15 attached thereto at the end.
  • the preferably as casting or steel part existing buffer plate 15 is integrally formed with a convex cambered front abutment surface 17.
  • this abutment surface 17 is in pressure contact with such a buffer plate of the other rail vehicle and it is thus ensured that the pressure forces arising during the travel are absorbed by these buffers and conducted into these connected car bodies.
  • the abutment surfaces 17 slide under partially high compressive forces against each other.
  • the plunger 12 is supported on a not shown in the known damping device in the form of a prestressed spring assembly on the buffer sleeve 11, that it is against the spring force in the direction of the buffer sleeve 11 slidably.
  • the spring assembly is supported on one side on a on the inside of the buffer sleeve 11, while it rests on the other side on the back of the buffer plate 15. It usually has a plurality of plastic elements which are pushed onto a bolt and are positioned by this.
  • the energy consumption can also be done hydraulically or via a combination of springs, elastomer springs and / or hydraulics with so-called hybrid buffers.
  • the buffer 10 is assigned a device 20 for the metered lubrication of the abutting surface 17 of the buffer plate 15.
  • This device 20 comprises a lubricant dispenser 25 with a connecting line 21 and at least one transverse in the buffer plate 15, connected to the connecting line 21 through opening 22 through which the preferably provided as a viscous grease lubricant 23 to the butt 17 is conductive.
  • the transverse passage opening 22 is arranged in the upper region of the buffer plate 15, whereby the lubricant 23 is distributed by gravity into the contact area of the abutment surfaces 17.
  • This lubricant dispenser 25 is designed such that an automatically controlled lubricant supply is preferably carried out continuously or at predetermined time intervals in a respectively metered amount, so that an uninterrupted lubrication at the abutment surface 17 is ensured.
  • the lubricant dispenser 25 comprises a cylindrical housing 27, an axially displaceable piston 26 and an energy dispenser 28.
  • the lubricant 23 is in stock, while in the opposite chamber 29 preferably a developed by the energy dispenser 28 gas or the like is introduced, so that the piston 26 is pushed to the connecting line 21.
  • This allows the lubricant dispenser 25 to execute this automatically controlled lubricant supply automatically without being connected to an external controller.
  • the lubricant dispenser 25 is advantageously designed such that it is refilled with the lubricant 23 and that it is equipped with a replaceable cartridge as an energy dispenser 28.
  • the lubricant dispenser 25 is mounted on the outside of the buffer ram 12 behind the buffer plate 15.
  • the housing 27 of the lubricant dispenser in an additional protective housing 31, which in Fig. 1 not illustrated, housed.
  • This protective housing 31 is held, for example, by a clamping ring 32 placed around the buffer pusher 12 and offset slightly in relation to the upper side of the buffer pusher 12 and, viewed in cross-section, is adapted to the rounding surface of the buffer pusher 12 with its lower bearing surface 31 '.
  • this lubricant dispenser 25 is mounted behind the buffer plate 15 in some protected, not exposed arrangement and also that in a very simple way an existing buffer ram can be retrofitted with such a lubricant dispenser, since he attached from the outside and thus freely accessible, which makes it easy to change.
  • Such buffer plates can of course have different outer shapes and sizes, such as round, rectangular or bevelled. Accordingly, these protective housings can be appropriately placed and adapted in shape.
  • Fig. 3 shows a coupling 40 of a non-illustrated rail vehicle.
  • This coupling 40 is made in a conventional manner and is therefore not described in detail. It has on its front side a coupling plate 46 or the like with a shock surface 47, which comes into contact with the coupling of such a coupling head 41 of a rail vehicle to be connected.
  • 46 two openings 48 are provided for the coupling of air lines in this coupling plate.
  • the coupling 40 is connected by a coupling rod 49 or pulling and pushing device with the rail vehicle.
  • the coupling 40 is assigned a device 45 for the metered lubrication of the respective abutment surface 47.
  • This device 45 is in itself the same as the one after Fig. 1 executed. Therefore, only the differences are explained below.
  • the device 45 is also associated with a lubricant dispenser with at least one connecting line 42 and in the coupling 40 is at least one transverse, connected to the connecting line 42 through-hole 43 is provided, through which the lubricant can be conducted to the abutment surface 47.
  • the housing 45 'in the device 45 is advantageously releasably secured by means of clamping rings 44 on this coupling rod 49, said coupling rod 49 is expediently dimensioned with a smaller diameter than the outer dimensions of the coupling head, so that this housing 45' does not protrude and is protected to some extent.
  • the passage opening 43 is arranged approximately centrally in the upper half of the opening 48 of this coupling plate 46.
  • a further connecting line 42 ' is branched off from the connecting line 42, by means of which further functional surfaces of moving parts in the clutch 40 can be lubricated in the context of the invention.
  • only one connecting line 42 could be provided to the abutting surface.
  • the lubricant dispenser could be controlled to lubricate each time immediately before and / or during the coupling, for example in the event of a coupling to the coupling during coupling.
  • lubricant dispensers 25 instead of one, two or more such lubricant dispensers 25 and accordingly also a plurality of transverse through-openings 22 could be associated in order to achieve an even better distribution of the lubricant.
  • a through hole and a groove or the like could be provided instead of a bore.
  • passage openings 22 in the buffer plate could theoretically also be arranged a leading to the top of the buffer plate connecting line through which the lubricant would reach this abutting surface.
  • another principle of the automatic lubricant supply could be based on the lubricant dispenser 25, in which, for example, the stroke of the plunger 12 relative to the buffer sleeve 11 is used as an energy source for the lubricant supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Coating Apparatus (AREA)
  • Vibration Dampers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Die Erfindung betrifft einen Puffer bzw. eine Kupplung für ein Schienenfahrzeug gemäss dem Oberbegriff des Anspruchs 1.The invention relates to a buffer or a coupling for a rail vehicle according to the preamble of claim 1.

Solche gattungsmässigen Puffer bzw. Kupplungen bei Schienenfahrzeugen werden üblicherweise aus hochwertigem Metall, insbesondere aus Stahl, gehärtetem Stahl, Gusseisen oder Stahlguss hergestellt. Bei diesen Puffern bzw. Kupplungen besteht das Problem, dass bei gekoppelten Fahrzeugen im Betrieb aufgrund der hohen Anpress- bzw. Druckkräfte bei diesen Stossflächen unerwünschte Verschleissbildungen entstehen können.Such generic buffers or couplings in rail vehicles are usually made of high-quality metal, in particular steel, hardened steel, cast iron or cast steel. In the case of these buffers or couplings, there is the problem that undesired wear can occur in coupled vehicles during operation due to the high pressure or pressure forces at these impact surfaces.

Um Reibungskräfte zwischen den sich gegenseitig an den Stossflächen berührenden Puffertellern zu reduzieren, ist es bekannt, für diese Stossflächen eine Kunststoffplatte zu verwenden, welche im Pufferteller befestigt werden, wie dies aus der Druckschrift EP-A-1 800 988 entnehmbar ist. Dies ist jedoch mit höherem Herstellungsaufwand verbunden.In order to reduce frictional forces between the buffer plates touching one another at the abutting surfaces, it is known to use a plastic plate for these abutting surfaces, which are fastened in the buffer plate, as is known from the document EP-A-1 800 988 is removable. However, this is associated with higher production costs.

Die Druckschrift DE-A-33 11 483 offenbart eine Dosiervorrichtung zum selbsttätigen Zuführen dosierter Schmiermittelmengen aus einem Vorratsbehälter auf die Stirnfläche des Puffertellers. Die Dosierung des Schmiermittels kann auf verschiedene Arten erfolgen, welche in Abhängigkeit von Relativverschiebungen der Stossfläche zum Fahrzeugrahmen erfolgt. Die Dosiervorrichtung mit einer Dosierpumpe mit einem Pumpenkolben und Rückschlagventilen kann zudem eine weitere Speicherkammer aufweisen, durch welche das Schmiermittel erst nach mehreren Pumphüben förderbar ist, welche durch ein mit dem Pumpenkolben gekoppeltes Stösselgetriebe bewirkt wird. Nachteilig hierbei ist, dass der Schmierspender nur dann Schmiermittel zu der Stossfläche liefert, wenn das Schienenfahrzeug fährt und Kurven vorhanden sind, damit überhaupt solche Relativverschiebungen der Stossfläche zum Fahrzeugrahmen ermöglicht werden. Bei der Ausführung mit der zusätzlichen Speicherkammer ist eine aufwändige Konstruktion erforderlich, welche bei den rauen Gegebenheiten beim Schienenfahrzeugbetrieb anfällig ist.The publication DE-A-33 11 483 discloses a metering device for automatically supplying metered amounts of lubricant from a reservoir onto the end face of the buffer plate. The metering of the lubricant can take place in various ways, which takes place as a function of relative displacements of the impact surface to the vehicle frame. The metering device with a metering pump with a pump piston and non-return valves may also have a further storage chamber, through which the lubricant is conveyed only after several pump strokes, which is effected by a coupled to the pump piston plunger gear. The disadvantage here is that the lubricating dispenser supplies lubricant to the impact surface only when the rail vehicle is running and curves are present, so that such relative displacements of the butt surface are made possible to the vehicle frame. In the embodiment with the additional storage chamber, a complex construction is required, which is prone to the harsh conditions in rail vehicle operation.

Aufgabe der vorliegenden Erfindung besteht demgegenüber darin, einen Puffer bzw. eine Kupplung für ein Schienenfahrzeug zu schaffen, mittels welchem durch einfache konstruktive Massnahmen eine erhöhte Lebensdauer bzw. eine verbesserte Funktionalität erreicht wird.The object of the present invention is to provide a buffer or a coupling for a rail vehicle, by means of which by simple constructive measures an increased life or improved functionality is achieved.

Erfindungsgemäss ist die Aufgabe dadurch gelöst, dass dem Puffer bzw. die Kupplung eine Einrichtung zum dosierten Schmieren der Stossfläche des Puffertellers zugeordnet ist.According to the invention the object is achieved in that the buffer or the coupling is associated with a device for metered lubrication of the abutting surface of the buffer plate.

Vorteilhaft weist diese Einrichtung einen Schmierstoffspender und wenigstens eine von diesem ausgehende bis zur Kontaktfläche führenden Verbindungsleitung auf, wobei der Schmierstoffspender derart ausgebildet ist, dass eine automatische Schmierstoffzufuhr kontinuierlich oder in vorbestimmten Zeitabständen in einer jeweils dosierten Menge erfolgt.Advantageously, this device has a lubricant dispenser and at least one outgoing from this outgoing leading to the contact surface connecting line, wherein the lubricant dispenser is designed such that an automatic lubricant supply takes place continuously or at predetermined time intervals in a respective metered amount.

Damit kann die Lebensdauer der Puffer bzw. der Kupplungen erhöht werden, ohne dass dies mit einem hohen Aufwand bei der Herstellung der Puffer verbunden wäre. Zudem zeichnet sich diese Lösung als sehr wartungsfreundlich aus und auch die dauerhafte Funktionalität derselben wird verbessert.Thus, the life of the buffer and the couplings can be increased without this being associated with a high cost in the production of the buffer. In addition, this solution is characterized as very easy to maintain and also the permanent functionality of the same is improved.

Die Erfindung sowie weitere Vorteile derselben werden nachfolgend anhand eines Ausführungsbeispieles unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigt:

Fig. 1
eine Ansicht eines Puffers mit Längsschnitt einer erfindungsgemässen Einrichtung,
Fig. 2
den Puffer mit der Einrichtung nach Fig. 1 in perspektivischer Darstellung, und
Fig. 3
eine perspektivische Darstellung einer erfindungsgemässen Kupplung mit der Einrichtung nach Fig. 1.
The invention and further advantages thereof are explained in more detail below using an exemplary embodiment with reference to the drawing. It shows:
Fig. 1
a view of a buffer with a longitudinal section of an inventive device,
Fig. 2
Replace the buffer with the device Fig. 1 in perspective, and
Fig. 3
a perspective view of an inventive coupling with the device according to Fig. 1 ,

Der in Fig. 1 dargestellte Puffer 10 weist einen Stössel 11 auf, welcher an einem nicht näher gezeigten Schienenfahrzeug, wie einem Eisenbahnwagen, Güterwagen oder dergleichen in herkömmlicher Weise befestigt ist.The in Fig. 1 shown buffer 10 has a plunger 11 which is fixed to a rail vehicle not shown in detail, such as a railway car, freight cars or the like in a conventional manner.

Der Stössel 11 ist von einer auf diesem axial verschiebbaren Pufferhülse 12 umfasst. Sowohl die Pufferhülse 11 als auch der Stössel 12 sind im wesentlichen hohlzylindrisch ausgebildet, wobei der Stössel 12 koaxial zur Pufferhülse 11 angeordnet ist. Der Stössel 12 weist ein Zylinderrohr 12' und einen endseitig daran befestigten Pufferteller 15 auf. Der vorzugsweise als Guss- oder Stahlteil bestehende Pufferteller 15 ist einstückig mit einer konvex bombierten vorderen Stossfläche 17 ausgebildet.The plunger 11 is encompassed by a buffer sleeve 12 which can be displaced axially thereon. Both the buffer sleeve 11 and the plunger 12 are formed substantially hollow cylindrical, the plunger 12 is arranged coaxially with the buffer sleeve 11. The plunger 12 has a cylinder tube 12 'and a buffer plate 15 attached thereto at the end. The preferably as casting or steel part existing buffer plate 15 is integrally formed with a convex cambered front abutment surface 17.

Im gekoppelten Betriebszustand zweier Schienenfahrzeuge steht diese Stossfläche 17 mit einer solchen eines Puffertellers des anderen Schienenfahrzeuges in Presskontakt und es ist damit gewährleistet, dass durch diese Puffer die während der Fahrt entstehenden Druckkräfte aufgenommen und in mit diesen verbundenen Wagenkästen geleitet werden. Die Stossflächen 17 gleiten unter teilweise hohen Druckkräften aneinander.In the coupled operating state of two rail vehicles, this abutment surface 17 is in pressure contact with such a buffer plate of the other rail vehicle and it is thus ensured that the pressure forces arising during the travel are absorbed by these buffers and conducted into these connected car bodies. The abutment surfaces 17 slide under partially high compressive forces against each other.

Der Stössel 12 ist über eine nicht näher dargestellte an sich bekannte Dämpfungseinrichtung in der Form eines vorgespannten Federpaketes derart an der Pufferhülse 11 abgestützt, dass er entgegen der Federkraft in Richtung der Pufferhülse 11 verschiebbar ist. Das Federpaket stützt sich dabei auf der einen Seite an einem auf der Innenseite der Pufferhülse 11 ab, während es auf der anderen Seite auf der Rückseite des Puffertellers 15 anliegt. Es weist üblicherweise eine Vielzahl von Kunststoffelementen auf, welche auf einen Bolzen aufgeschoben sind und von diesem positioniert werden. Der Energieverzehr kann auch hydraulisch oder über eine Kombination von Federn, Elastomerfedern und/oder Hydraulik mit sogenannten Hybridpuffern erfolgen.The plunger 12 is supported on a not shown in the known damping device in the form of a prestressed spring assembly on the buffer sleeve 11, that it is against the spring force in the direction of the buffer sleeve 11 slidably. The spring assembly is supported on one side on a on the inside of the buffer sleeve 11, while it rests on the other side on the back of the buffer plate 15. It usually has a plurality of plastic elements which are pushed onto a bolt and are positioned by this. The energy consumption can also be done hydraulically or via a combination of springs, elastomer springs and / or hydraulics with so-called hybrid buffers.

Erfindungsgemäss ist dem Puffer 10 eine Einrichtung 20 zum dosierten Schmieren der Stossfläche 17 des Puffertellers 15 zugeordnet. Diese Einrichtung 20 umfasst einen Schmierstoffspender 25 mit einer Verbindungsleitung 21 und mindestens eine im Pufferteller 15 quer angeordnete, an die Verbindungsleitung 21 angeschlossene Durchgangsöffnung 22, durch welche der vorzugsweise als dickflüssiger Schmierfett vorgesehene Schmierstoff 23 bis zur Stossfläche 17 leitbar ist. Zweckmässigerweise ist die quere Durchgangsöffnung 22 im oberen Bereich des Puffertellers 15 angeordnet, womit der Schmierstoff 23 durch die Schwerkraft in den Berührungsbereich der Stossflächen 17 verteilt wird.According to the invention, the buffer 10 is assigned a device 20 for the metered lubrication of the abutting surface 17 of the buffer plate 15. This device 20 comprises a lubricant dispenser 25 with a connecting line 21 and at least one transverse in the buffer plate 15, connected to the connecting line 21 through opening 22 through which the preferably provided as a viscous grease lubricant 23 to the butt 17 is conductive. Conveniently, the transverse passage opening 22 is arranged in the upper region of the buffer plate 15, whereby the lubricant 23 is distributed by gravity into the contact area of the abutment surfaces 17.

Dieser Schmierstoffspender 25 ist derart ausgebildet, dass eine automatisch gesteuerte Schmierstoffzufuhr vorzugsweise kontinuierlich oder aber in vorbestimmten Zeitabständen in einer jeweils dosierten Menge erfolgt, so dass eine ununterbrochene Schmierung bei der Stossfläche 17 gewährleistet ist.This lubricant dispenser 25 is designed such that an automatically controlled lubricant supply is preferably carried out continuously or at predetermined time intervals in a respectively metered amount, so that an uninterrupted lubrication at the abutment surface 17 is ensured.

Zu diesem Zwecke umfasst der Schmierstoffspender 25 ein zylindrisches Gehäuse 27, einen darin axial verschiebbaren Kolben 26 und einen Energiespender 28. In der einen vom Gehäuse 27 und dem Kolben 26 gebildeten Kammer, bei welcher sich der Ausgang zur Verbindungsleitung 21 befindet, ist der Schmierstoff 23 vorrätig, indes in der gegenüberliegenden Kammer 29 vorzugsweise ein vom Energiespender 28 entwickeltes Gas oder dergleichen eingeführt wird, so dass der Kolben 26 zur Verbindungsleitung 21 hin geschoben wird. Damit wird ermöglicht, dass der Schmierstoffspender 25 diese automatisch gesteuerte Schmierstoffzufuhr selbsttätig ausführt, ohne mit einer externen Steuerung verbunden zu sein.For this purpose, the lubricant dispenser 25 comprises a cylindrical housing 27, an axially displaceable piston 26 and an energy dispenser 28. In the one of the housing 27 and the piston 26th formed chamber, in which the output is to the connecting line 21, the lubricant 23 is in stock, while in the opposite chamber 29 preferably a developed by the energy dispenser 28 gas or the like is introduced, so that the piston 26 is pushed to the connecting line 21. This allows the lubricant dispenser 25 to execute this automatically controlled lubricant supply automatically without being connected to an external controller.

Der Schmierstoffspender 25 ist vorteilhaft derart ausgestaltet, dass er mit dem Schmierstoff 23 nachgefüllt und dass er mit einer auswechselbaren Patrone als Energiespender 28 bestückt ist.The lubricant dispenser 25 is advantageously designed such that it is refilled with the lubricant 23 and that it is equipped with a replaceable cartridge as an energy dispenser 28.

Gemäss Fig. 2 ist der Schmierstoffspender 25 an der Aussenseite des Pufferstössels 12 hinter dem Pufferteller 15 montiert. Mit Vorteil ist das Gehäuse 27 des Schmierstoffspenders in einem zusätzlichen Schutzgehäuse 31, welches in Fig. 1 nicht veranschaulicht ist, untergebracht. Dieses Schutzgehäuse 31 ist beispielsweise durch einen sich um den Pufferstössel 12 herum gelegten Spannring 32 gehalten und dabei in Bezug auf die Oberseite des Pufferstössels 12 etwas zur Seite versetzt angeordnet und im Querschnitt betrachtet mit seiner unteren Auflagefläche 31' der Rundung des Pufferstössels 12 angepasst.According to Fig. 2 the lubricant dispenser 25 is mounted on the outside of the buffer ram 12 behind the buffer plate 15. Advantageously, the housing 27 of the lubricant dispenser in an additional protective housing 31, which in Fig. 1 not illustrated, housed. This protective housing 31 is held, for example, by a clamping ring 32 placed around the buffer pusher 12 and offset slightly in relation to the upper side of the buffer pusher 12 and, viewed in cross-section, is adapted to the rounding surface of the buffer pusher 12 with its lower bearing surface 31 '.

Damit ergeben sich weitere Vorteile im Rahmen der Erfindung, nämlich dass dieser Schmierstoffspender 25 hinter dem Pufferteller 15 in etwas geschützter, nicht exponierter Anordnung montiert ist und ausserdem, dass auf sehr einfache Weise ein bestehender Pufferstössel nachträglich mit einem solchen Schmierstoffspender ausgerüstet werden kann, da er von aussen angebracht und somit frei zugänglich ist, wodurch er auch einfach gewechselt werden kann.This results in further advantages in the context of the invention, namely that this lubricant dispenser 25 is mounted behind the buffer plate 15 in some protected, not exposed arrangement and also that in a very simple way an existing buffer ram can be retrofitted with such a lubricant dispenser, since he attached from the outside and thus freely accessible, which makes it easy to change.

Solche Pufferteller können selbstverständlich unterschiedliche Aussenformen und Grössen aufweisen, wie zum Beispiel rund, rechteckig oder abgeschrägt. Dementsprechend können diese Schutzgehäuse entsprechend plaziert und in der Form angepasst sein.Such buffer plates can of course have different outer shapes and sizes, such as round, rectangular or bevelled. Accordingly, these protective housings can be appropriately placed and adapted in shape.

Fig. 3 zeigt eine Kupplung 40 eines nicht näher veranschaulichten Schienenfahrzeuges. Diese Kupplung 40 ist in herkömmlicher Weise hergestellt und ist daher nicht in allen Einzelheiten beschrieben. Sie weist auf ihrer Vorderseite eine Kupplungsplatte 46 oder dergleichen mit einer Stossfläche 47 auf, welche beim Kuppeln mit einer solchen eines Kupplungskopfes 41 eines zu verbindenden Schienenfahrzeuges in Berührung gelangt. Ausserdem sind bei dieser Kupplungsplatte 46 zwei Öffnungen 48 für das Kuppeln von Luftleitungen vorgesehen. Die Kupplung 40 ist durch eine Kupplungsstange 49 oder Zug- und Stossvorrichtung mit dem Schienenfahrzeug verbunden. Fig. 3 shows a coupling 40 of a non-illustrated rail vehicle. This coupling 40 is made in a conventional manner and is therefore not described in detail. It has on its front side a coupling plate 46 or the like with a shock surface 47, which comes into contact with the coupling of such a coupling head 41 of a rail vehicle to be connected. In addition, 46 two openings 48 are provided for the coupling of air lines in this coupling plate. The coupling 40 is connected by a coupling rod 49 or pulling and pushing device with the rail vehicle.

Erfindungsgemäss ist der Kupplung 40 eine Einrichtung 45 zum dosierten Schmieren der jeweiligen Stossfläche 47 zugeordnet. Diese Einrichtung 45 ist an sich gleich wie diejenige nach Fig. 1 ausgeführt. Es sind daher nachfolgend nurmehr die Unterschiede erläutert.According to the invention, the coupling 40 is assigned a device 45 for the metered lubrication of the respective abutment surface 47. This device 45 is in itself the same as the one after Fig. 1 executed. Therefore, only the differences are explained below.

Der Einrichtung 45 ist ebenso ein Schmierstoffspender mit wenigstens einer Verbindungsleitung 42 zugeordnet und in der Kupplung 40 ist mindestens eine quere, an die Verbindungsleitung 42 angeschlossene Durchgangsöffnung 43 vorgesehen, durch welche der Schmierstoff bis zur Stossfläche 47 leitbar ist. Das Gehäuse 45' bei der Einrichtung 45 ist dabei vorteilhaft mittels Spannringen 44 an dieser Kupplungsstange 49 lösbar befestigt, wobei diese Kupplungsstange 49 zweckmässigerweise mit einem kleineren Durchmesser als die Aussenabmessungen des Kupplungskopfes dimensioniert ist, damit dieses Gehäuse 45' nicht vorsteht und gewissermassen geschützt ist.The device 45 is also associated with a lubricant dispenser with at least one connecting line 42 and in the coupling 40 is at least one transverse, connected to the connecting line 42 through-hole 43 is provided, through which the lubricant can be conducted to the abutment surface 47. The housing 45 'in the device 45 is advantageously releasably secured by means of clamping rings 44 on this coupling rod 49, said coupling rod 49 is expediently dimensioned with a smaller diameter than the outer dimensions of the coupling head, so that this housing 45' does not protrude and is protected to some extent.

Die Durchgangsöffnung 43 ist in der oberen Hälfte innenseitig der Öffnung 48 dieser Kupplungsplatte 46 annähernd mittig angeordnet. Selbstverständlich könnten auch mehr als eine Durchgangsöffnung 43 vorgesehen sein, und zudem ist eine weitere Verbindungsleitung 42' von der Verbindungsleitung 42 abgezweigt, mittels welcher im Rahmen der Erfindung weitere Funktionsflächen von beweglichen Teilen in der Kupplung 40 geschmiert werden können. Selbstverständlich könnte auch nur die eine Verbindungsleitung 42 zu der Stossfläche vorgesehen sein.The passage opening 43 is arranged approximately centrally in the upper half of the opening 48 of this coupling plate 46. Of course, more than one through-opening 43 could be provided, and also a further connecting line 42 'is branched off from the connecting line 42, by means of which further functional surfaces of moving parts in the clutch 40 can be lubricated in the context of the invention. Of course, only one connecting line 42 could be provided to the abutting surface.

Im gekuppelten Zustand zweier solcher Kupplungen besteht bei den Stossflächen 47 an sich eine starre Verbindung. Diese Schmierung trägt jedoch dazu bei, dass diese Stossflächen beim Kuppeln geschont werden und der Kupplungsvorgang einwandfrei erfolgt. Zu diesem Zwecke könnte der Schmierstoffspender so gesteuert sein, dass er jedesmal unmittelbar vor und/oder während dem Kuppeln schmiert, dies beispielsweise bei einem beim Kuppeln erfolgenden Stoss auf die Kupplung.In the coupled state of two such couplings is at the abutment surfaces 47 in itself a rigid connection. However, this lubrication contributes to the fact that these abutment surfaces are protected when coupling and the coupling process is done properly. For this purpose, the lubricant dispenser could be controlled to lubricate each time immediately before and / or during the coupling, for example in the event of a coupling to the coupling during coupling.

Die Erfindung ist mit dem obigen Ausführungsbeispiel ausreichend dargetan. Sie könnte aber noch in anderen möglichen Varianten veranschaulicht sein.The invention is sufficiently demonstrated with the above embodiment. But it could still be illustrated in other possible variants.

So könnten zum Beispiel bei einem Puffer anstelle von einem auch zwei bzw. mehrere solcher Schmierstoffspender 25 und dementsprechend auch mehrere quere Durchgangsöffnungen 22 zugeordnet sein, um eine noch bessere Verteilung des Schmierstoffes zu erzielen. Als Durchgangsöffnung könnte auch anstelle einer Bohrung eine Nut oder ähnliches vorgesehen sein.Thus, for example, in the case of a buffer, instead of one, two or more such lubricant dispensers 25 and accordingly also a plurality of transverse through-openings 22 could be associated in order to achieve an even better distribution of the lubricant. As a through hole and a groove or the like could be provided instead of a bore.

Anstelle von Durchgangsöffnungen 22 beim Pufferteller könnte theoretisch auch eine an die Oberseite des Puffertellers führende Verbindungsleitung angeordnet sein, durch welche das Schmiermittel auf diese Stossfläche gelangen würde.Instead of passage openings 22 in the buffer plate could theoretically also be arranged a leading to the top of the buffer plate connecting line through which the lubricant would reach this abutting surface.

Grundsätzlich könnte für den Schmierstoffspender 25 auch ein anderes Prinzip der automatischen Schmierstoffzufuhr zugrundegelegt sein, bei dem beispielsweise der Hub des Stössels 12 gegenüber der Pufferhülse 11 als Energiespender für die Schmierstoffzufuhr verwendet wird.Basically, another principle of the automatic lubricant supply could be based on the lubricant dispenser 25, in which, for example, the stroke of the plunger 12 relative to the buffer sleeve 11 is used as an energy source for the lubricant supply.

Claims (6)

  1. A buffer for a railway vehicle, wherein the buffer (10) is provided with an axially displaceable buffer plunger (12) and with a buffer plate (15) attached to the latter that, with its abutting surface (17), can be brought into pressing contact with the abutting surface of a buffer plate of a couplable railway vehicle, a device (20) for the metered lubrication of the respective abutting surface (17) being assigned to the buffer (10), which respectively has at least one lubricant dispenser (25), characterised in that the respective lubricant dispenser (25) is accommodated in a protective housing (31) fastened to the outside of the buffer plunger (12) and has at least one connection line (21) through which the lubricant (23) can be conveyed to the abutting surface (17).
  2. The buffer according to Claim 1, characterised in that at least one transverse passage opening (22) connected to the connection line (21) is provided in the buffer plate (17).
  3. The buffer according to Claim 2, characterised in that the transverse passage opening (21) is disposed in the upper region of the buffer plate (15).
  4. The buffer according to Claim 1, characterised in that a connection line leading to the upper side of the buffer plate is provided, through which the lubricant passes to this abutting surface.
  5. The buffer according to any of the preceding Claims 1 to 4, characterised in that the protective housing (31) is disposed on the upper side of the buffer plunger (12) behind the buffer plate (12) and, as considered in cross section, is adapted to the rounding of the buffer plunger (12) with its lower contact surface (31').
  6. A coupling for a railway vehicle that has an abutting surface (47) which, upon coupling, comes into contact with an abutting surface of a coupling of a railway vehicle to be connected, characterised in that
    there is a device (45) for the metered lubrication of the respective abutting surface (47) that respectively has at least one lubricant dispenser (25), which is accommodated in a protective housing (45') fastened to the outside of a coupling rod (49) and has at least one connection line (42) through which the lubricant (23) can be conveyed to the abutting surface (47).
EP12004650.3A 2011-06-21 2012-06-21 Buffer or coupling for a rail vehicle Active EP2537730B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12004650T PL2537730T3 (en) 2011-06-21 2012-06-21 Buffer or coupling for a rail vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01053/11A CH705135B1 (en) 2011-06-21 2011-06-21 Buffer for a rail vehicle.

Publications (2)

Publication Number Publication Date
EP2537730A1 EP2537730A1 (en) 2012-12-26
EP2537730B1 true EP2537730B1 (en) 2017-02-15

Family

ID=46464967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12004650.3A Active EP2537730B1 (en) 2011-06-21 2012-06-21 Buffer or coupling for a rail vehicle

Country Status (4)

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EP (1) EP2537730B1 (en)
CH (1) CH705135B1 (en)
ES (1) ES2624238T3 (en)
PL (1) PL2537730T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019114236A1 (en) * 2019-05-28 2020-12-03 Voith Patent Gmbh Train coupling
DE102019114237A1 (en) * 2019-05-28 2020-12-03 Voith Patent Gmbh Train coupling
US11059501B2 (en) 2017-04-06 2021-07-13 Faiveley Transport Schwab AG Linkage device for a vehicle coupling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH716316B1 (en) * 2019-06-14 2023-05-15 Faiveley Transp Schwab Ag Coupling head, in particular for a rail vehicle.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311483A1 (en) * 1983-03-29 1984-10-04 Knorr-Bremse GmbH, 8000 München Buffer device for rail vehicles
DE19726516A1 (en) * 1997-06-23 1998-12-24 Duewag Ag Buffers for rail vehicles
CH701575B1 (en) 2005-12-22 2011-02-15 Schwab Verkehrstechnik Ag Buffer head for rail vehicles and method for producing the buffer head.
CH702215A2 (en) * 2009-11-13 2011-05-13 Schwab Verkehrstechnik Ag Automatic coupling for rail vehicles with side buffers.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11059501B2 (en) 2017-04-06 2021-07-13 Faiveley Transport Schwab AG Linkage device for a vehicle coupling
DE102019114236A1 (en) * 2019-05-28 2020-12-03 Voith Patent Gmbh Train coupling
DE102019114237A1 (en) * 2019-05-28 2020-12-03 Voith Patent Gmbh Train coupling
WO2020239374A1 (en) 2019-05-28 2020-12-03 Voith Patent Gmbh Traction coupling

Also Published As

Publication number Publication date
EP2537730A1 (en) 2012-12-26
ES2624238T3 (en) 2017-07-13
CH705135A2 (en) 2012-12-31
CH705135B1 (en) 2015-01-15
PL2537730T3 (en) 2017-11-30

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