EP3205551B1 - Coupling device for a rail vehicle - Google Patents

Coupling device for a rail vehicle Download PDF

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Publication number
EP3205551B1
EP3205551B1 EP16155426.6A EP16155426A EP3205551B1 EP 3205551 B1 EP3205551 B1 EP 3205551B1 EP 16155426 A EP16155426 A EP 16155426A EP 3205551 B1 EP3205551 B1 EP 3205551B1
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EP
European Patent Office
Prior art keywords
pipe section
coupling
support
coupling device
flange
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EP16155426.6A
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German (de)
French (fr)
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EP3205551A1 (en
EP3205551B2 (en
Inventor
Stefan FAAS
Thomas Eisele
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Faiveley Transport Schwab AG
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Faiveley Transport Schwab AG
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Application filed by Faiveley Transport Schwab AG filed Critical Faiveley Transport Schwab AG
Priority to EP16155426.6A priority Critical patent/EP3205551B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances

Definitions

  • the invention relates to a coupling device for a rail vehicle according to the preamble of claim 1.
  • Coupling devices of this type are known to be used for the coupling of rail vehicles in passenger or freight trains, such as that in the document EP-A-2 322 403 is explained. They basically consist of two coupling halves, which are arranged on each rail vehicle and can be coupled together. They are each provided with a coupling head and a pulling device for transmitting the tensile and impact forces to the vehicle body.
  • a coupling device according to the preamble is also given in the document WO 2005/075272 A1 known.
  • a safety device provided in at least one coupling absorbs the impact energy by converting it into deformation energy within certain limits. This deformation energy is generated in such a way that a support of the coupling cooperating with the pipe section has a larger diameter than the inside diameter of the pipe section and thereby expands and deforms it accordingly when it is pressed into the pipe section in the event of an impact.
  • the invention has for its object to avoid these disadvantages and to provide a coupling device of the type mentioned, the passive safety device is effective in the event of an impact as uniformly as possible over a long deformation distance. To this end, it should be possible to retrofit the pipe section in vehicles that originally had no passive safety elements.
  • the safety element of the coupling can work without cracks and jerks because no jams and / or violent vibrations occur during the impact, which counteract the uniform advance of the support in the pipe section along the deformation section of the pipe section.
  • the invention provides that the pipe section is preferably primed with a base color and the support with a slide ring is made of sliding material, preferably ductile iron (gray cast iron). In this way it is possible to manufacture the support body carrying the slide ring from the material which is most suitable for its function.
  • the pipe section is expediently produced from a one-piece pipe which has the inside diameter provided in its deformation region throughout.
  • the invention further provides that the pipe end provided with the pipe extension protrudes into an annular gap between the coupling flange and the support and can be fastened there to the inside or outside of the coupling flange with a releasable connection, such as preferably a screw or bayonet connection.
  • a releasable connection such as preferably a screw or bayonet connection.
  • the invention also provides that the other pipe end of the pipe section facing away from the coupling flange is open. Since the proposed passive safety element can naturally only absorb a certain amount of energy, the open tube end enables the support interacting with the tube piece in the event of a head-on collision depending on the mass and speed of the impacting wagon (s) is pushed beyond the open pipe end into the interior of the vehicle body.
  • the coupling flange is provided with connecting means, preferably in the form of shear bolts, for holding the support, which release themselves automatically at a defined impact force in order to release the support. This ensures that the support in the tube extension that receives it remains intact in the event of slight backward or pushing movements of the coupling and is only effective in an emergency when the defined impact force is reached, by penetrating the tube section in order to deform it in an energy-absorbing manner.
  • the support In normal operation, when the shear pin is connected, the support is expediently in contact with the pipe section, so that no operating forces are conducted via this shear pin. On the one hand, this enables the breakaway force to be set independently of the shear force of this connecting means and, on the other hand, prevents the support and the pipe section from settling or a change in the release force over time.
  • Fig. 1 shows a coupling 1 for a rail vehicle, the coupling head, not shown, is articulated on a bolt 2 of a coupling part 3.
  • This coupling part 3 has a cylindrical extension 4 with a support 5 on the end face, which is guided in a star-shaped or the like designed coupling flange 6 and is fixed there by shear bolts 7 as a connecting means.
  • the coupling flange 6 is in turn screwed, for example, in the vehicle body of the rail vehicle, not shown in detail.
  • a pipe section 8 is arranged, which in the event of an impact interacts as a passive safety element with the support 5 by penetrating into the pipe section and expanding it, the pipe section absorbing the energy of the impact within certain limits when deformed.
  • the support 5 rests on the expanded pipe section 8.
  • a distance could also be provided between them, so that the axial forces generated during normal operation would not be transmitted by them, but via the shear pin 7.
  • the pipe end 9 of the pipe section 8 projects into an annular space 10 between the support 5 and the coupling flange 6 and is detachably fastened there.
  • a detachable screw connection 11 is provided which enables the installation and removal of the pipe section 8 in the fully assembled coupling, even after it has been installed in the vehicle body of the vehicle. This also makes it possible to retrofit the pipe section 8 in vehicles which originally had no passive safety elements. Instead of the screw connection 11, it can also be a bayonet or the like.
  • the pipe section 8 has the same or changing inside diameter provided throughout its deformation region and is provided on the inside at the pipe end 9 with a diameter widening 12 which accommodates the support 5.
  • This widening of the diameter in the tube piece or in the case of the support outside is advantageously formed by a corresponding conical widening.
  • the pipe section 8 is well positioned and centered on the support 5. It is also advantageous that the pipe section 8 on the inside only in the area the diameter extension must be processed. This greatly facilitates the processing of the pipe section, especially since its pipe length can be one meter and more in practice.
  • a separate flange 14 ' is attached to the pipe section 8 at the other pipe end 14, which is dimensioned with its inside and / or outside diameter in such a way that the force counteracting the impact force via the support 5 is opposite this flange 14' the pipe section 8 is variable.
  • this flange 14 ' is reduced with respect to the pipe section 8 with its inner diameter or enlarged with the outer diameter. This increases the force counteracting the impact force in this flange 14 '. This dimensioning can be varied depending on the application and more than one such flange 14 'could also be provided.
  • the fixation of the shoulder 4 in the coupling flange 6 with the shear bolts 7 has the purpose of preventing the support 5 from becoming unstable in the area of the diameter widening 12 as a result of vibrations or slight recoil during normal operation.
  • the shear bolts 7 are sheared off when a certain impact force is reached, and the support 5 is released so that it can penetrate into the deformation region of the pipe section 8 unhindered and expand it.
  • the expansion of the pipe section 8 by the support 5 takes place in the area of a plastic deformation, the materials of the pipe and the slide ring 13 being matched to one another in this way are that on impact the Support 5 slides against the inside of the pipe section 8 with approximately uniform frictional force.
  • the pipe section 8 is expediently coated on the inside, advantageously primed with a base color, while the support 5 is provided with the slide ring 13 made of a sliding material, preferably spheroidal cast iron (gray cast iron).
  • This choice of material ensures that, in the event of an impact, the deformation of the pipe section 8 takes place within certain impact forces largely without jerks and without an increase in force or force peaks over the entire deformation range of the tube.
  • the pipe section 8 is open at its pipe end 14 facing away from the coupling flange 6 and opens there into a likewise open interior of the vehicle body, not shown, into which the support 5 is pushed in a head-on collision depending on the mass and / or speed of the impacting vehicle.
  • the described passive safety device can be installed in only one as well as in both coupling halves of the coupling.
  • the pipe section with an enlarged diameter could be provided as an annular recess.
  • the pipe section with the pipe end 14 could also be made from a one-piece pipe.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Body Structure For Vehicles (AREA)

Description

Die Erfindung betrifft eine Kupplungseinrichtung für ein Schienenfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a coupling device for a rail vehicle according to the preamble of claim 1.

Kupplungseinrichtungen dieser Art werden bekanntlich für das Kuppeln von Schienenfahrzeugen bei Personen- oder Güterzügen eingesetzt, wie eine solche in der Druckschrift EP-A-2 322 403 erläutert ist. Sie bestehen grundsätzlich aus zwei Kupplungshälften, die bei je einem Schienenfahrzeug angeordnet und miteinander kuppelbar sind. Sie sind dabei mit je einem Kupplungskopf und einer Zugeinrichtung zum Übertragen der Zug- und Stosskräfte auf den Fahrzeugkasten versehen Eine oberbegriffsgemäße Kupplungseinrichtung ist ebenso durch die Druckschrift WO 2005/075272 A1 bekannt.Coupling devices of this type are known to be used for the coupling of rail vehicles in passenger or freight trains, such as that in the document EP-A-2 322 403 is explained. They basically consist of two coupling halves, which are arranged on each rail vehicle and can be coupled together. They are each provided with a coupling head and a pulling device for transmitting the tensile and impact forces to the vehicle body. A coupling device according to the preamble is also given in the document WO 2005/075272 A1 known.

Bei einem möglichen Aufprall zwischen zwei Schienenfahrzeugen bei den Kupplungen oder einer Kupplung eines Fahrzeugs mit einem Prellbock am Gleisende ist vorgesehen, dass ein in mindestens einer Kupplung vorgesehenen Sicherheitseinrichtung die Aufprallenergie durch Umwandeln derselben in Verformungsenergie innerhalb bestimmter Grenzen absorbiert. Diese Verformungsenergie wird in der Weise generiert, dass ein mit dem Rohrstück zusammenwirkende Support der Kupplung einen grösseren Durchmesser als der Innendurchmesser des Rohrstücks aufweist und dadurch dieses aufweitet und dementsprechend verformt, wenn sie bei einem Aufprall in das Rohrstück gedrückt wird.In the event of a possible collision between two rail vehicles in the couplings or a coupling of a vehicle with a buffer at the end of the track, it is provided that a safety device provided in at least one coupling absorbs the impact energy by converting it into deformation energy within certain limits. This deformation energy is generated in such a way that a support of the coupling cooperating with the pipe section has a larger diameter than the inside diameter of the pipe section and thereby expands and deforms it accordingly when it is pressed into the pipe section in the event of an impact.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und eine Kupplungseinrichtung der eingangs genannten Art zu schaffen, deren passive Sicherheitseinrichtung bei einem Aufprall möglichst gleichmässig über eine lange Verformungsstrecke wirksam ist. Dazu soll ermöglicht werden, das Rohrstück nachträglich in Fahrzeuge einzubauen, die ursprünglich über keine passiven Sicherheitselemente verfügt hatten.The invention has for its object to avoid these disadvantages and to provide a coupling device of the type mentioned, the passive safety device is effective in the event of an impact as uniformly as possible over a long deformation distance. To this end, it should be possible to retrofit the pipe section in vehicles that originally had no passive safety elements.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass das Rohrende des Rohrstücks durch eine lösbare Verbindung an den Kupplungsflansch befestigbar ist.This object is achieved according to the invention in that the pipe end of the pipe section can be fastened to the coupling flange by a releasable connection.

Das Sicherheitselement der Kupplung kann riss- und ruckfrei arbeiten, weil während des Aufpralls keine Verklemmungen und/oder heftigen Schwingungen entstehen, die dem gleichmässigen Vordringen des Supports im Rohrstück entlang der Verformungsstrecke des Rohrstücks entgegenwirken.The safety element of the coupling can work without cracks and jerks because no jams and / or violent vibrations occur during the impact, which counteract the uniform advance of the support in the pipe section along the deformation section of the pipe section.

Die Erfindung sieht in diesem Sinne vor, dass das Rohrstück vorzugsweise mit einer Grundfarbe grundiert ist und der Support mit einem Gleitring aus gleitendem Material, vorzugsweise Sphäroguss (Grauguss), hergestellt ist. Auf diese Weise ist es möglich, den Gleitring tragenden Supportkörper aus dem für seine Funktion am besten geeigneten Werkstoff herzustellen.In this sense, the invention provides that the pipe section is preferably primed with a base color and the support with a slide ring is made of sliding material, preferably ductile iron (gray cast iron). In this way it is possible to manufacture the support body carrying the slide ring from the material which is most suitable for its function.

Zweckmässigerweise ist das Rohrstück aus einem einstückigen Rohr hergestellt, das durchgehend den in seinem Verformungsbereich vorgesehenen Innendurchmesser aufweist.The pipe section is expediently produced from a one-piece pipe which has the inside diameter provided in its deformation region throughout.

Es ist dabei zum Positionieren und Zentrieren des Rohrstücks auf dem Support vorteilhaft, wenn das Rohrstück an dem einen Rohrende innenseitig mit einer den Support aufnehmenden Durchmessererweiterung versehen ist. Das hat ausserdem den Vorteil, dass das Rohrstück innenseitig nur bei der den Support aufnehmen Aufweitung bearbeitet werden muss, was sonst schwierig ist, da das Rohrstück mit einer Länge von bis zu einem Meter oder noch länger dimensioniert werden kann.It is advantageous for positioning and centering the pipe section on the support if the pipe section is provided on the inside on one pipe end with a diameter widening which receives the support. This also has the advantage that the pipe section only needs to be processed on the inside to accommodate the expansion, which is otherwise difficult since the pipe section can be dimensioned with a length of up to one meter or even longer.

Die Erfindung sieht weiterhin vor, dass das mit der Rohrerweiterung versehene Rohrende in einen ringförmigen Spalt zwischen dem Kupplungsflansch und dem Support hineinragt und dort an den Kupplungsflansch innen- oder aussenseitig mit einer lösbaren Verbindung wie vorzugsweise eine Schraub- oder Bajonettverbindung befestigbar ist. Das ermöglicht den direkten Ein- und Ausbau des Rohrstücks an die fertig zusammengebaute oder im Fahrzeug eingebaute Kupplungshälfte.The invention further provides that the pipe end provided with the pipe extension protrudes into an annular gap between the coupling flange and the support and can be fastened there to the inside or outside of the coupling flange with a releasable connection, such as preferably a screw or bayonet connection. This enables the pipe section to be installed and removed directly from the fully assembled coupling half or from the vehicle.

Die Erfindung sieht ausserdem vor, dass das andere, vom Kupplungsflansch abgekehrte Rohrende des Rohrstücks offen ist. Da das vorgeschlagene passive Sicherheitselement naturgemäss nur eine bestimmte Energie aufnehmen kann, ermöglicht das offene Rohrende, dass bei einer Frontalkollision den mit dem Rohrstück zusammenwirkende Support je nach Masse und Geschwindigkeit des oder der aufprallenden Waggons über das offene Rohrende hinaus bis in den Innenraum des Fahrzeugkastens gestossen wird.The invention also provides that the other pipe end of the pipe section facing away from the coupling flange is open. Since the proposed passive safety element can naturally only absorb a certain amount of energy, the open tube end enables the support interacting with the tube piece in the event of a head-on collision depending on the mass and speed of the impacting wagon (s) is pushed beyond the open pipe end into the interior of the vehicle body.

Der Kupplungsflansch ist mit vorzugsweise als Abscherbolzen ausgebildeten Verbindungsmitteln zum Halten des Supports versehen, die sich bei einer definierten Aufprallkraft selbsttätig lösen, um den Support freizugeben. Damit wird sichergestellt, dass bei leichten Rück- oder Stossbewegungen der Kupplung der Support in der ihn aufnehmenden Rohrerweiterung unversehrt bleibt und nur im Notfall bei Erreichen der jeweils definierten Aufprallkraft wirksam wird, indem er dann in das Rohrstück eindringt, um dieses energieabsorbierend zu verformen.The coupling flange is provided with connecting means, preferably in the form of shear bolts, for holding the support, which release themselves automatically at a defined impact force in order to release the support. This ensures that the support in the tube extension that receives it remains intact in the event of slight backward or pushing movements of the coupling and is only effective in an emergency when the defined impact force is reached, by penetrating the tube section in order to deform it in an energy-absorbing manner.

Zweckmässigerweise liegt im Normalbetrieb bei verbundenem Abscherbolzen der Support an dem Rohrstück an, so dass keine Betriebskräfte über diesen Abscherbolzen geleitet werden. Damit kann einerseits die Losbrechkraft unabhängig von der Abscherkraft dieses Verbindungsmittels eingestellt werden und anderseits wird ein Setzen zwischen dem Support und dem Rohrstück oder eine Veränderung der Auslösekraft über die Zeit verhindert.In normal operation, when the shear pin is connected, the support is expediently in contact with the pipe section, so that no operating forces are conducted via this shear pin. On the one hand, this enables the breakaway force to be set independently of the shear force of this connecting means and, on the other hand, prevents the support and the pipe section from settling or a change in the release force over time.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigt:

Fig. 1
eine perspektivisch und teilweise im Schnitt dargestellte erfindungsgemässe Kupplungshälfte.
The invention is explained in more detail below using an exemplary embodiment with reference to the drawing. It shows:
Fig. 1
a coupling half according to the invention shown in perspective and partially in section.

Fig. 1 zeigt eine Kupplung 1 für ein Schienenfahrzeug, deren nicht dargestellter Kupplungskopf an einem Bolzen 2 eines Kupplungsteils 3 anlenkbar ist. Dieser Kupplungsteil 3 weist stirnseitig einen zylindrischen Ansatz 4 mit einem Support 5 auf, der in einem sternförmigen oder dergleichen ausgebildeten Kupplungsflansch 6 geführt und dort durch Abscherbolzen 7 als Verbindungsmittel fixiert ist. Der Kupplungsflansch 6 ist seinerseits beispielsweise im nicht näher gezeigten Fahrzeugkasten des Schienenfahrzeuges festgeschraubt. Fig. 1 shows a coupling 1 for a rail vehicle, the coupling head, not shown, is articulated on a bolt 2 of a coupling part 3. This coupling part 3 has a cylindrical extension 4 with a support 5 on the end face, which is guided in a star-shaped or the like designed coupling flange 6 and is fixed there by shear bolts 7 as a connecting means. The coupling flange 6 is in turn screwed, for example, in the vehicle body of the rail vehicle, not shown in detail.

In Verlängerung des Ansatzes 4 ist ein Rohrstück 8 angeordnet, das bei einem Aufprall als passives Sicherheitselement mit dem Support 5 zusammenwirkt, indem diese in das Rohrstück eindringt und ihn aufweitet, wobei das Rohrstück bei seiner Verformung die Energie des Aufpralls innerhalb bestimmter Grenzen absorbiert. Im gezeigten Normalbetrieb liegt der Support 5 an dem erweiterten Rohrstück 8 an. Es könnte jedoch auch eine Distanz zwischen diesen vorgesehen sein, so dass die im Normalbetrieb entstehenden Axialkräfte nicht bei diesen übertragen würde, sondern über den Abscherbolzen 7.In extension of the approach 4, a pipe section 8 is arranged, which in the event of an impact interacts as a passive safety element with the support 5 by penetrating into the pipe section and expanding it, the pipe section absorbing the energy of the impact within certain limits when deformed. In the normal operation shown, the support 5 rests on the expanded pipe section 8. However, a distance could also be provided between them, so that the axial forces generated during normal operation would not be transmitted by them, but via the shear pin 7.

Erfindungsgemäss ragt das Rohrende 9 des Rohrstücks 8 in einen ringförmigen Zwischenraum 10 zwischen dem Support 5 und dem Kupplungsflansch 6 und ist dort an diesem lösbar befestigt. Eine lösbare Schraubverbindung 11 ist vorgesehen, die den Ein- und Ausbau des Rohrstücks 8 in der fertig zusammengebauten Kupplung ermöglicht, auch nach deren Einbau in den Fahrzeugkasten des Fahrzeugs. Dadurch ist es auch möglich, das Rohrstück 8 nachträglich in Fahrzeuge einzubauen, die ursprünglich über keine passiven Sicherheitselemente verfügt hatten. Anstelle der Schraubverbindung 11 kann es sich auch um ein Bajonett oder ähnliches handeln.According to the invention, the pipe end 9 of the pipe section 8 projects into an annular space 10 between the support 5 and the coupling flange 6 and is detachably fastened there. A detachable screw connection 11 is provided which enables the installation and removal of the pipe section 8 in the fully assembled coupling, even after it has been installed in the vehicle body of the vehicle. This also makes it possible to retrofit the pipe section 8 in vehicles which originally had no passive safety elements. Instead of the screw connection 11, it can also be a bayonet or the like.

Das Rohrstück 8 weist einen durchgehend in seinem Verformungsbereich vorgesehenen gleichen oder verändernden Innendurchmesser auf und ist am Rohrende 9 innenseitig mit einer den Support 5 aufnehmenden Durchmessererweiterung 12 versehen. Vorteilhaft sind diese Durchmessererweiterung im Rohrstück bzw. bei dem Support aussen durch eine korrespondierende kegelförmige Erweiterung gebildet. Dadurch ist das Rohrstück 8 auf dem Support 5 gut positioniert und zentriert. Es ist ausserdem von Vorteil, dass das Rohrstück 8 innenseitig nur im Bereich der Durchmessererweiterung bearbeitet werden muss. Dadurch wird die Bearbeitung des Rohrstücks sehr erleichtert, zumal seine Rohrlänge in der Praxis ein Meter und mehr betragen kann.The pipe section 8 has the same or changing inside diameter provided throughout its deformation region and is provided on the inside at the pipe end 9 with a diameter widening 12 which accommodates the support 5. This widening of the diameter in the tube piece or in the case of the support outside is advantageously formed by a corresponding conical widening. As a result, the pipe section 8 is well positioned and centered on the support 5. It is also advantageous that the pipe section 8 on the inside only in the area the diameter extension must be processed. This greatly facilitates the processing of the pipe section, especially since its pipe length can be one meter and more in practice.

Im Rahmen der Erfindung ist bei dem Rohrstück 8 an dem anderen Rohrende 14 ein separater Flansch 14' befestigt, welcher mit seinem Innen- und/oder Aussendurchmesser derart dimensioniert ist, dass die der Aufprallkraft via den Support 5 entgegenwirkende Kraft bei diesem Flansch 14' gegenüber dem Rohrstück 8 variierbar ist.Within the scope of the invention, a separate flange 14 'is attached to the pipe section 8 at the other pipe end 14, which is dimensioned with its inside and / or outside diameter in such a way that the force counteracting the impact force via the support 5 is opposite this flange 14' the pipe section 8 is variable.

Beim vorliegenden Ausführungsbeispiel ist dieser Flansch 14' gegenüber dem Rohrstück 8 mit seinem Innendurchmesser verkleinert bzw. mit dem Aussendurchmesser vergrössert. Damit wird die der Aufprallkraft entgegenwirkende Kraft bei diesem Flansch 14' erhöht. Diese Dimensionierung kann je nach Anwendungsfall variiert werden und es könnten auch mehr als ein solcher Flansche 14' vorgesehen sein.In the present exemplary embodiment, this flange 14 'is reduced with respect to the pipe section 8 with its inner diameter or enlarged with the outer diameter. This increases the force counteracting the impact force in this flange 14 '. This dimensioning can be varied depending on the application and more than one such flange 14 'could also be provided.

Die Fixierung des Ansatzes 4 im Kupplungsflansch 6 mit den Abscherbolzen 7 hat den Zweck zu verhindern, dass im normalen Betrieb der Support 5 im Bereich der Durchmessererweiterung 12 infolge von Vibrationen oder leichten Rückstössen instabil wird.The fixation of the shoulder 4 in the coupling flange 6 with the shear bolts 7 has the purpose of preventing the support 5 from becoming unstable in the area of the diameter widening 12 as a result of vibrations or slight recoil during normal operation.

Bei einem Aufprall werden die Abscherbolzen 7 bei Erreichen einer bestimmten Aufprallkraft abgeschert, und der Support 5 wird freigegeben, damit sie ungehindert in den Verformungsbereich des Rohrstückes 8 eindringen kann und ihn aufweitet.In the event of an impact, the shear bolts 7 are sheared off when a certain impact force is reached, and the support 5 is released so that it can penetrate into the deformation region of the pipe section 8 unhindered and expand it.

Um zu verhindern, dass dieser Vorgang Risse und/oder Schwingungen des Rohres verursacht, ist es erfindungsgemäss vorgesehen, dass die Aufweitung des Rohrstücks 8 durch den Support 5 im Bereich einer plastischen Verformung stattfindet, wobei die Werkstoffe des Rohres und des Gleitrings 13 so aufeinander abgestimmt sind, dass beim Aufprall der Support 5 gegen die Innenseite des Rohrstücks 8 mit annähernd gleichmässiger Reibkraft entlanggleitet.In order to prevent this process from causing cracks and / or vibrations of the pipe, it is provided according to the invention that the expansion of the pipe section 8 by the support 5 takes place in the area of a plastic deformation, the materials of the pipe and the slide ring 13 being matched to one another in this way are that on impact the Support 5 slides against the inside of the pipe section 8 with approximately uniform frictional force.

Zweckmässigerweise ist das Rohrstück 8 innenseitig beschichtet, vorteilhaft mit einer Grundfarbe grundiert, während der Support 5 mit dem Gleitring 13 aus einem gleitenden Werkstoff, vorzugsweise Sphäroguss (Grauguss), versehen ist.The pipe section 8 is expediently coated on the inside, advantageously primed with a base color, while the support 5 is provided with the slide ring 13 made of a sliding material, preferably spheroidal cast iron (gray cast iron).

Durch diese Materialauswahl ist sichergestellt, dass bei einem Aufprall die Verformung des Rohrstücks 8 innerhalb bestimmter Aufprallkräfte weitgehend ruckfrei und ohne einen Kraftanstieg oder Kraftspitzen über den gesamten Verformungsbereich des Rohres stattfindet.This choice of material ensures that, in the event of an impact, the deformation of the pipe section 8 takes place within certain impact forces largely without jerks and without an increase in force or force peaks over the entire deformation range of the tube.

Das Rohrstück 8 ist an seinem vom Kupplungsflansch 6 abgekehrten Rohrende 14 offen und mündet dort in einen ebenfalls offenen Innenraum das nicht dargestellten Fahrzeugkastens, in den der Support 5 bei einer Frontalkollision je nach Masse und/oder Geschwindigkeit des aufprallenden Fahrzeugs gestossen wird.The pipe section 8 is open at its pipe end 14 facing away from the coupling flange 6 and opens there into a likewise open interior of the vehicle body, not shown, into which the support 5 is pushed in a head-on collision depending on the mass and / or speed of the impacting vehicle.

Die beschriebene passive Sicherheitseinrichtung kann sowohl in nur einer als auch in beiden Kupplungshälften der Kupplung eingebaut sein.The described passive safety device can be installed in only one as well as in both coupling halves of the coupling.

Die Erfindung ist mit dem erläuterten Ausführungsbeispiel ausreichend dargetan. Sie könnte aber noch durch andere Varianten erläutert sein. Im Prinzip könnte das Rohrstück mit einer Durchmessererweiterung als eine ringförmige Ausnehmung vorgesehen sein.The invention is sufficiently demonstrated with the illustrated embodiment. However, it could also be explained by other variants. In principle, the pipe section with an enlarged diameter could be provided as an annular recess.

Das Rohrstück mit dem Rohrende 14 könnte auch aus einem einstückigen Rohr hergestellt sein.The pipe section with the pipe end 14 could also be made from a one-piece pipe.

Claims (13)

  1. Coupling device for a rail vehicle, with at least one coupling (1) with a coupling flange (6) fixable to the rail vehicle, with a pipe section (8) and with a coupling part (3), which is hold in the coupling flange (6), for the reception of a coupling head, whereas the coupling part (3) is provided with a support (5) and whereas the pipe section (8) is provided on the inside with a diameter widening (12) receiving this support (5), whereas this support (5) of the coupling part (3) being displaceably guided in the tube piece (8) in an energy-absorbing manner in the event of an impact with an impact force, so that a passive safety device is formed, characterized in that
    the pipe end (9) of the pipe section (8) can be fastened to the coupling flange (6) by a detachable connection (11).
  2. Coupling device according to claim 1, characterized in that
    the coupling part (3) with the support (5) is held in the coupling flange (6) by connecting means which are preferably designed as shear bolts (7), which release themselves automatically at a defined impact force.
  3. Coupling device according to claim 1 or 2, characterized in that
    the pipe end (9) of the pipe section (8) provided with the diameter widening (12) projects into an annular gap (11) between the coupling flange (6) and the support (5) and there is attached to the coupling flange with the releasable connection (11), such as preferably a screw or bayonet connection.
  4. Coupling device according to anyone of the preceding claims 1 to 3, characterized in that
    the materials of the pipe section (8) and the support (5) guided therein are matched to one another in such a way that the support (5) penetrating into the pipe section upon impact causes the pipe section to expand in the area of plastic deformation, whereas the support against the inside of the pipe section slides along with an approximately uniform frictional force.
  5. Coupling device according to claim 4, characterized in that
    the pipe section (8) is coated on the inside, preferably primed with a base color, and the support (5) is provided with a sliding ring (13) made of a sliding material, preferably spheroidal cast iron (gray cast iron).
  6. Coupling device according to claim 4 or 5, characterized in that
    the pipe section (8) is made from a one-piece pipe, which has the same inner diameter throughout its deformation area.
  7. Coupling device according to anyone of the preceding claims 4 to 6, characterized in that
    the pipe section (8) on the pipe end (9) is provided on the inside with a diameter widening (12) in which the support (5) is accommodated.
  8. Coupling device according to anyone of the preceding claims 4 to 7, characterized in that
    this diameter widening (12) in the pipe section or with this support (5) is formed on the outside by a corresponding conical widening.
  9. Coupling device according to anyone of the preceding claims 4 to 8, characterized in that
    the other pipe end (14) of the pipe section (8) is open.
  10. Coupling device according to anyone of the preceding claims 1 to 9, characterized in that
    at the other pipe end (14) of the pipe section (8) at least one separate flange (14 ') is attached, which is dimensioned with its inner and/or outer diameter such that the force counteracting the impact force in this flange (14 ') can be varied with respect to the pipe section (8).
  11. Coupling device according to claim 10, characterized in that
    the flange (14 ') can be mounted on the pipe section (8) with a releasable connection.
  12. Rail vehicle with at least one coupling device according to anyone of the preceding claims 1 to 11, with a vehicle body, characterized in that
    the coupling device can be mounted on the vehicle body.
  13. Rail vehicle according to claim 12, characterized in that
    the other pipe end (14) of the pipe section (8) of the coupling device is open.
EP16155426.6A 2016-02-12 2016-02-12 Coupling device for a rail vehicle Active EP3205551B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16155426.6A EP3205551B2 (en) 2016-02-12 2016-02-12 Coupling device for a rail vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16155426.6A EP3205551B2 (en) 2016-02-12 2016-02-12 Coupling device for a rail vehicle

Publications (3)

Publication Number Publication Date
EP3205551A1 EP3205551A1 (en) 2017-08-16
EP3205551B1 true EP3205551B1 (en) 2020-05-27
EP3205551B2 EP3205551B2 (en) 2023-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16155426.6A Active EP3205551B2 (en) 2016-02-12 2016-02-12 Coupling device for a rail vehicle

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EP (1) EP3205551B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713677B1 (en) 2017-04-06 2021-04-30 Faiveley Transp Schwab Ag Linkage device for a coupling of a rail vehicle.
SE544403C2 (en) * 2020-09-30 2022-05-10 Rxd Res Exchange Development Ab Energy dissipation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719684A1 (en) 2005-05-03 2006-11-08 Voith Turbo Scharfenberg GmbH & Co. KG Central buffer coupling for railway vehicles
EP1990251A1 (en) 2007-05-08 2008-11-12 Voith Patent GmbH Power consumption unit for vehicles consisting of several units

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526056C2 (en) † 2003-09-10 2005-06-21 Dellner Couplers Ab Collision protection for rail vehicle couplings and a linkage device designed for such a connection for permanent coupling of two rail vehicle units
SE526663C2 (en) * 2004-02-04 2005-10-18 Dellner Couplers Ab Towing device for train coupler and deformation pipe for this
PL1752353T3 (en) * 2005-08-10 2008-05-30 Voith Turbo Scharfenberg Gmbh & Co Kg Energy dissipating device with increased response force
EP1905661B1 (en) * 2006-09-28 2009-03-25 Voith Turbo Scharfenberg GmbH & Co. KG Coupling bar for transmitting drawing and puffing forces.
EP1925523B1 (en) * 2006-11-22 2009-02-11 Voith Patent GmbH Connector for bodies of a multi section railway vehicle
US8051995B2 (en) * 2007-12-17 2011-11-08 Voith Patent Gmbh Energy dissipation device for a car body of a multi-member rail vehicle
CH702215A2 (en) 2009-11-13 2011-05-13 Schwab Verkehrstechnik Ag Automatic coupling for rail vehicles with side buffers.
GB2517970B (en) * 2013-09-06 2016-02-10 T A Savery & Co Ltd A buffer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719684A1 (en) 2005-05-03 2006-11-08 Voith Turbo Scharfenberg GmbH & Co. KG Central buffer coupling for railway vehicles
EP1990251A1 (en) 2007-05-08 2008-11-12 Voith Patent GmbH Power consumption unit for vehicles consisting of several units

Also Published As

Publication number Publication date
EP3205551A1 (en) 2017-08-16
EP3205551B2 (en) 2023-06-07

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