EP3750771B1 - Coupling with an electric coupling, especially for a rail vehicle - Google Patents

Coupling with an electric coupling, especially for a rail vehicle Download PDF

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Publication number
EP3750771B1
EP3750771B1 EP19214258.6A EP19214258A EP3750771B1 EP 3750771 B1 EP3750771 B1 EP 3750771B1 EP 19214258 A EP19214258 A EP 19214258A EP 3750771 B1 EP3750771 B1 EP 3750771B1
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EP
European Patent Office
Prior art keywords
coupling
piston
way valve
main air
electric
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EP19214258.6A
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German (de)
French (fr)
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EP3750771A1 (en
Inventor
Stefan FAAS
Mike Fassbind
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Faiveley Transport Schwab AG
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Faiveley Transport Schwab AG
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Priority claimed from CH000805/2019A external-priority patent/CH716316B1/en
Application filed by Faiveley Transport Schwab AG filed Critical Faiveley Transport Schwab AG
Publication of EP3750771A1 publication Critical patent/EP3750771A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/06—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
    • B61G5/10—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables

Definitions

  • the invention relates to a clutch with an electric clutch, in particular for a rail vehicle, according to the preamble of claim 1.
  • a mechanical vehicle clutch is in the reference EP-A-2 322 403 disclosed, which can be used for both passenger and freight trains and enables automatic coupling of two vehicles on both straight and curved routes.
  • the electric cables of the vehicles are connected or decoupled by means of corresponding electric couplings.
  • the plugs or sockets provided for this must be replaced during the coupling process be accessible from the outside, but in the uncoupled state they must be protected against contact, dirt, water, etc.
  • each coupling device having a coupling head which is supported on a drawbar of a draw and buffing device which is attached to the rail vehicle via a bearing.
  • the respective coupling head is formed from a multi-part housing. It is provided with a coupling element and the respective other coupling head with a corresponding recess. This coupling member is designed to engage in the recess of the other coupling head when coupling.
  • EP-A-3 476 688 discloses a coupling for a rail vehicle in which there is an electric coupler on both sides of the coupling head, each with a housing that can be adjusted by a respective propulsion cylinder.
  • the coupling head has a coupling rod on the front and an opening for receiving a coupling rod of the counter-coupling to be coupled.
  • a main reservoir tube is provided which serves as the air source for the propulsion cylinders of the electric couplers.
  • a valve body in the inlet and outlet lines to the propulsion cylinders causes the electric couplers to move into the coupled or uncoupled position.
  • an additional valve body downstream of the valve body is provided for the actuation of a decoupling cylinder.
  • This main reservoir tube as the main air line is arranged next to the coupling head.
  • an automatic center buffer coupler for railway vehicles which automatically couples any wires or cables between the cars during coupling, there being a contact box with a series of spring-loaded electrical contacts for connecting the circuits between the cars. Also, a brake line with a mouthpiece and opposite a shut-off valve arranged in the contact box. An additional mouthpiece is connected to the brake line via a sleeve. The compressed air enters a cylinder from the main channel through the valve. The compressed air acting on the piston, with the help of the rods, pushes the contact box to its forward position, where it can be mated with the similar box next to the automatic coupler.
  • the pamphlet FR 1 187 466 A describes a Scharfenberg coupling in which the electric coupling is decoupled or coupled with compressed air from the main air line.
  • the invention is based on the object of creating a clutch with an electric clutch in which the control when coupling and uncoupling the mechanical and the electric clutch is simple and safe and these are coordinated with one another with optimized use of the available energy sources.
  • the electro-coupling is equipped with a clutch housing and a piston/cylinder unit that can be moved for coupling and decoupling.
  • the piston/cylinder unit is controlled or actuated, at least for coupling the electric clutch, by means of the compressed air of the main air line. This results in very simple and safe coupling and decoupling of the electric coupling.
  • a branch line with a two-way valve arranged in it leads from the main air line, which is routed through the coupling head, into that chamber of the piston/cylinder unit in order to adjust the latter to the position of the coupled state of the electric coupling when the two-way valve is opened.
  • a branch line with a two-way valve arranged in it can be routed from the main air line of the coupling head to a control valve, with this control valve connecting one or the other chamber of the piston/cylinder unit with the connection line to the separate pressure medium for its coupling and uncoupling when the two-way valve is actuated or closes.
  • FIG. 1 shows schematically a coupling with a mechanical coupling head 10 and an electric coupling 20 fastened on top, on the side or below this, in which this coupling is used in particular for a rail vehicle.
  • this coupling is used in particular for a rail vehicle.
  • the electrical lines of the rail vehicles are connected to one another with the electric coupling 20, so that the power supply and electrical control lines to the coupled vehicles are guaranteed.
  • An electric coupling 20 is positioned on the front and rear of each rail vehicle in such a way that it can be coupled in a compatible manner to any other vehicle.
  • the electric clutch 20 is equipped with a clutch housing 21 and with a piston/cylinder unit 25 that can be displaced therein.
  • Her piston 28 is held rigidly on the coupling head 10 and the cylinder 29 and with it the clutch housing 21 on this piston 28 movably guided, which subsequently to 3 is explained in more detail.
  • This coupling head 10 is provided with an indicated housing 10', which has an abutment surface 14 on the front for a flat contact with an abutment surface of a coupling head to be coupled for coupling two rail vehicles or the like. Further details of the locking when coupling are not shown in more detail, since they do not relate to the invention.
  • a guide vane 16 is also indicated at the front of the abutment surface 14, which is designed for centering two heads 10 to be coupled to one another.
  • at least one main air line 11 (HLL) leads through the coupling head 10 and is fed with an operating pressure of air for the brakes of the rail vehicles.
  • HLL main air line 11
  • This connection means 40 includes an adjustable in its axis Plunger 41, a sleeve 42 that guides it, and a compression spring 43.
  • This plunger 41 can be valve-controlled, protruding toward the abutment surface 14 of the coupling head 10 and pushed into an opening in a main air line of a coupled coupling head, so that a tight connection of the main air line between the heads is made possible becomes.
  • the closing valve 30 in the main air line 11 comprises a stationary guide sleeve 31, a closing piston 35 guided by it and having a cavity 36 and a compression spring 32 arranged therein angled main air line 11 sealingly.
  • This closing piston 35 is slidably arranged at the bottom in a cylinder chamber 34 which is connected to a two-way valve 37 via a branch line 38 .
  • the plunger 41 is also advanced in the same way when the two-way valve 37 is opened, since it is also fed via this branch line 38 and this branching 38'.
  • a branch line 12 with a two-way valve 13 arranged in it is led from the main air line 11 in the coupling head 10 to a control valve 19, with this control valve 19 opening one or the other chamber 26, 27 of the piston/cylinder unit when the mechanically switchable two-way valve 13 is actuated 25 of the electro-coupling 20 connects or closes with a connecting line 15 of a separate pressure medium 17 for coupling and uncoupling it.
  • the pressure medium 17 can be contained in a pressure vessel and also be connected to the main air line HLL or a main air tank line HBL or to a separate pressure source. In the event of a pressure drop in the main air line, this pressure vessel can be used to ensure that the electric clutch can still be decoupled.
  • the existing pressure of 3.5 to 5.0 bar can be used, which on the one hand simplifies the control and on the other hand ensures reliable operation.
  • FIG. 2 shows a variant of a control of the electric clutch 20, in which the actuation of the piston/cylinder unit 25 for displacement for the coupling of the electric clutch 20 takes place according to the invention by means of the compressed air of the main air line 11.
  • a branch line 12 leading away from the main air line 11 with a two-way valve 13 arranged in it leads directly into a first chamber 26 of the piston/cylinder unit 25, in order to move the latter when the two-way valve 13 is opened into the position of the coupled state of the electric clutch 20 to adjust, while a connecting line 15 is provided leading to a separate pressure medium 17 in a second chamber 27 of the piston / cylinder unit 25 for their uncoupling.
  • This second chamber 27 is arranged on that side in the cylinder 29 on which its piston 28 is held rigidly on the coupling head with the piston rod 28'.
  • Pressure reducing valve 22 included, by means of which a higher pressure difference between the two chambers 26, 27 is brought about.
  • branch line 12 with the two-way valve 13 could be omitted entirely and this line 12', shown in broken lines, could also be routed into the branch line 38, which is not illustrated.
  • a compression spring 33 could be arranged in this chamber 27, as indicated by dot-dashed lines, which would permanently exert pressure on the piston 28 and thus cause a decoupling as soon as the pressure in of the other chamber 26 is lowered, or when a pressure builds up in the latter chamber 26, coupling would take place.
  • FIG. 3 shows a side view of the electric coupling 20, which has these plugs and/or sockets 45 in the coupling housing 21, an electric cable 46 leading away to the rail vehicle, one on the top arranged support plate 44 with a protruding bracket 44' for rigidly holding the piston 28, the piston/cylinder unit 25, a hinged cover 47 at the front of the plugs and/or sockets 45 to protect them in the decoupled state, a linkage 48 for the Opening and closing the cover 47 and a guide assembly 49 for the clutch housing 21 has.
  • valves explained above are constructed as two-way valves which, when actuated, are brought into an open position, but are brought back into the closed position by means of spring elements.
  • these valves could also be designed differently as required, for example as multi-way valves, such as 5/2-way valves, monostable, bistable, which can be actuated pneumatically, mechanically and/or electrically.
  • the piston/cylinder unit (25) can also be designed as a differential piston, in which the chamber 27 is constantly acted upon, for example via this compression spring 33 or by compressed air. To move the electric clutch in and out, only chamber 26 is pressurized with compressed air or vented.
  • the differential force can be achieved through the use a pressure reducing valve in the supply line to chamber 27 can be increased.
  • the electric clutch could also be driven by a lever system instead of a pneumatic cylinder, with the end position being in an over-center position as with a toggle lever, which would also be actuated by means of a piston/cylinder unit or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Description

Die Erfindung betrifft eine Kupplung mit einer Elektrokupplung insbesondere für ein Schienenfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a clutch with an electric clutch, in particular for a rail vehicle, according to the preamble of claim 1.

Eine mechanische Fahrzeugkupplung ist in der Druckschrift EP-A-2 322 403 offenbart, welche sowohl bei Personen- als auch bei Güterzügen einsetzbar ist und ein automatisches Kuppeln zweier Fahrzeuge sowohl auf geraden wie auch auf kurvigen Fahrstrecken ermöglicht. Dabei werden gleichsam die Elektroleitungen der Fahrzeuge mittels korrespondierenden Elektrokupplungen verbunden bzw. entkuppelt. Die dafür vorgesehenen Stecker bzw. Steckdosen müssen beim Kupplungsvorgang nach aussen hin zugänglich sein, indessen im ungekuppelten Zustand sind sie gegen Berührung, Schmutz, Wasser, etc. zu schützen.A mechanical vehicle clutch is in the reference EP-A-2 322 403 disclosed, which can be used for both passenger and freight trains and enables automatic coupling of two vehicles on both straight and curved routes. The electric cables of the vehicles are connected or decoupled by means of corresponding electric couplings. The plugs or sockets provided for this must be replaced during the coupling process be accessible from the outside, but in the uncoupled state they must be protected against contact, dirt, water, etc.

Bei einer gattungsmässigen Kupplungsanordnung gemäss der Druckschrift EP-A-0 972 693 sind zwei Kupplungsvorrichtungen vorgesehen, welche jeweils einen Kupplungskopf aufweisen, der an einer Zugstange einer Zug- und Stossvorrichtung abgestützt ist, welche über eine Lagerung am Schienenfahrzeug befestigt ist. Der jeweilige Kupplungskopf ist dabei aus einem mehrteiligen Gehäuse gebildet. Er ist mit einem Kupplungsorgan und der jeweils andere Kupplungskopf mit einer korrespondierenden Aussparung versehen. Dieses Kupplungsorgan ist beim Kuppeln in die Aussparung des jeweils anderen Kupplungskopfs einzugreifen bestimmt.With a generic clutch arrangement according to the publication EP-A-0 972 693 two coupling devices are provided, each having a coupling head which is supported on a drawbar of a draw and buffing device which is attached to the rail vehicle via a bearing. The respective coupling head is formed from a multi-part housing. It is provided with a coupling element and the respective other coupling head with a corresponding recess. This coupling member is designed to engage in the recess of the other coupling head when coupling.

In der Druckschrift EP-A-3 476 688 ist eine Kupplung für ein Schienenfahrzeug offenbart, bei der beidseitig zum Kupplungskopf je ein elektrischer Kuppler mit je einem Gehäuse verstellbar durch je einen Vortriebszylinder vorhanden sind. Der Kupplungskopf ist frontseitig mit einer Kupplungsstange und mit einer Öffnung für die Aufnahme einer Kupplungsstange der zu kuppelnden Gegenkupplung versehen. Es ist ein Hauptreservoirrohr vorgesehen, welches als Luftquelle für die Vortriebszylinder der elektrischen Kuppler dient. Mittels eines Ventilkörpers in der Zu- bzw. Ableitung zu den Vortriebszylindern wird ein Bewegen der elektrischen Kuppler in die gekoppelte oder entkoppelte Stellung bewirkt. Zudem ist ein zu dem Ventilkörper nachgeschalteter zusätzlicher Ventilkörper für die Betätigung eines Entkupplungszylinders vorgesehen. Dieses Hauptreservoirrohr als Hauptluftleitung ist neben dem Kupplungskopf angeordnet.In the pamphlet EP-A-3 476 688 discloses a coupling for a rail vehicle in which there is an electric coupler on both sides of the coupling head, each with a housing that can be adjusted by a respective propulsion cylinder. The coupling head has a coupling rod on the front and an opening for receiving a coupling rod of the counter-coupling to be coupled. A main reservoir tube is provided which serves as the air source for the propulsion cylinders of the electric couplers. A valve body in the inlet and outlet lines to the propulsion cylinders causes the electric couplers to move into the coupled or uncoupled position. In addition, an additional valve body downstream of the valve body is provided for the actuation of a decoupling cylinder. This main reservoir tube as the main air line is arranged next to the coupling head.

Gemäss der Druckschrift FR-A-1 303 855 ist eine selbsttätige Mittelpufferkupplung für Schienenfahrzeuge offenbart, die während des Kuppelns automatisch alle Leitungen oder Kabel zwischen den Waggons kuppelt, dazu ein Kontaktkasten mit einer Reihe von federbelasteten elektrischen Kontakten zur Verbindung der Stromkreise zwischen den Waggons vorhanden sind. Zudem ist eine Bremsleitung mit einem Mundstück und gegenüberliegend einem Absperrventil im Kontaktkasten angeordnet. Ein Zusatzmundstück ist via eine Hülse mit der Bremsleitung verbunden. Die Druckluft gelangt vom Hauptkanal durch das Ventil in einen Zylinder. Die auf den Kolben einwirkende Druckluft drückt mit Hilfe der Stangen den Kontaktkasten in seine vordere Position, wo er mit dem ähnlichen Kasten neben der automatischen Kupplung zusammengesteckt werden kann.According to the pamphlet FR-A-1 303 855 discloses an automatic center buffer coupler for railway vehicles which automatically couples any wires or cables between the cars during coupling, there being a contact box with a series of spring-loaded electrical contacts for connecting the circuits between the cars. Also, a brake line with a mouthpiece and opposite a shut-off valve arranged in the contact box. An additional mouthpiece is connected to the brake line via a sleeve. The compressed air enters a cylinder from the main channel through the valve. The compressed air acting on the piston, with the help of the rods, pushes the contact box to its forward position, where it can be mated with the similar box next to the automatic coupler.

Die Druckschrift FR 1 187 466 A beschreibt eine Scharfenberg-Kupplung, bei der die Elektrokupplung mit Druckluft von der Hauptluftleitung ent- bzw. gekoppelt wird.The pamphlet FR 1 187 466 A describes a Scharfenberg coupling in which the electric coupling is decoupled or coupled with compressed air from the main air line.

Der Erfindung liegt die Aufgabe zugrunde, eine Kupplung mit einer Elektrokupplung zu schaffen, bei der die Steuerung beim Kuppeln bzw. Entkuppeln der mechanischen und der elektrischen Kupplung einfach und sicher und diese dabei aber bei optimierter Verwendung der vorhandenen Energiequellen aufeinander abgestimmt sind.The invention is based on the object of creating a clutch with an electric clutch in which the control when coupling and uncoupling the mechanical and the electric clutch is simple and safe and these are coordinated with one another with optimized use of the available energy sources.

Diese Aufgabe ist erfindungsgemäss nach den Merkmalen eines der Ansprüche 1 oder 2 gelöst.According to the invention, this object is achieved according to the features of one of claims 1 or 2 .

Die Elektrokupplung ist mit einem Kupplungsgehäuse und einer dieses für das Kuppeln bzw. Entkuppeln verschiebbaren Kolben/Zylinder-Einheit ausgestattet. Erfindungsgemäss erfolgt die Steuerung oder die Betätigung der Kolben/Zylinder-Einheit zumindest zum Ankoppeln der Elektrokupplung mittels der Druckluft der Hauptluftleitung. Damit ergibt sich eine sehr einfaches und sicheres Kuppeln bzw. Entkuppeln der Elektrokupplung.The electro-coupling is equipped with a clutch housing and a piston/cylinder unit that can be moved for coupling and decoupling. According to the invention, the piston/cylinder unit is controlled or actuated, at least for coupling the electric clutch, by means of the compressed air of the main air line. This results in very simple and safe coupling and decoupling of the electric coupling.

Erfindungsgemäß führt von der Hauptluftleitung, welche durch den Kupplungskopf hindurchgeführt ist, eine Abzweigleitung mit einem in dieser angeordneten Zweiwegventil in diejenige Kammer der Kolben/ZylinderEinheit, um letztere beim Öffnen des Zweiwegventils in die Position des gekuppelten Zustandes der Elektrokupplung zu verstellen.According to the invention, a branch line with a two-way valve arranged in it leads from the main air line, which is routed through the coupling head, into that chamber of the piston/cylinder unit in order to adjust the latter to the position of the coupled state of the electric coupling when the two-way valve is opened.

Alternativ kann von der Hauptluftleitung des Kupplungskopfs eine Abzweigleitung mit einem in dieser angeordneten Zweiwegventil zu einem Steuerventil geführt sein, wobei dieses Steuerventil bei Betätigung des Zweiwegventils die eine oder andere Kammer der Kolben/ZylinderEinheit mit der Anschlussleitung zu dem separaten Druckmedium für ihr Kuppeln und Entkuppeln verbindet bzw. schliesst.Alternatively, a branch line with a two-way valve arranged in it can be routed from the main air line of the coupling head to a control valve, with this control valve connecting one or the other chamber of the piston/cylinder unit with the connection line to the separate pressure medium for its coupling and uncoupling when the two-way valve is actuated or closes.

Die Erfindung sowie weitere Vorteile derselben sind nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigt:

Fig. 1
ein Schema einer Kupplung mit einer Elektrokupplung und einem Kupplungskopf mit einem Schnitt eines Schliessventils und eines Kupplungselementes der Hauptluftleitung;
Fig. 2
das Schema nach Fig. 1 mit einer alternativen Steuerung bzw. Betätigung der Elektrokupplung; und
Fig. 3
eine Seitenansicht mit teilweisem Schnitt der Elektrokupplung mit einer Befestigungsplatte auf ihrer Oberseite für die Montage am Kupplungskopf.
The invention and other advantages thereof are explained in more detail below using exemplary embodiments with reference to the drawing. It shows:
1
a schematic of a coupling with an electric coupling and a coupling head with a section of a closing valve and a coupling element of the main air line;
2
the scheme 1 with an alternative control or actuation of the electric clutch; and
3
a side view, partially in section, of the electro-coupling with a mounting plate on its top for mounting on the coupling head.

Fig. 1 zeigt schematisch eine Kupplung mit einem mechanischen Kupplungskopf 10 und einer auf der Oberseite, seitlich oder unterhalb dieses befestigten Elektrokupplung 20, bei der diese Kupplung insbesondere für ein Schienenfahrzeug verwendet wird. Damit kann ein automatisches Kuppeln bzw. Entkuppeln eines Schienenfahrzeugs mit einem andern Schienenfahrzeug erzielt werden, wobei sich diese Kupplung vorzugsweise für Güterwagen eignet. 1 shows schematically a coupling with a mechanical coupling head 10 and an electric coupling 20 fastened on top, on the side or below this, in which this coupling is used in particular for a rail vehicle. In this way, automatic coupling or decoupling of a rail vehicle with another rail vehicle can be achieved, with this coupling being preferably suitable for freight cars.

Mit der Elektrokupplung 20 werden die elektrischen Leitungen der Schienenfahrzeuge miteinander verbunden, so dass die Stromversorgung sowie elektrische Steuerleitungen zu den angekoppelten Fahrzeugen gewährleistet ist. Es ist bei jedem Schienenfahrzeug vor- und rückseitig jeweils eine Elektrokupplung 20 derart positioniert, dass diese jeweils mit einem beliebigen andern Fahrzeug in kompatibler Weise koppelbar ist.The electrical lines of the rail vehicles are connected to one another with the electric coupling 20, so that the power supply and electrical control lines to the coupled vehicles are guaranteed. An electric coupling 20 is positioned on the front and rear of each rail vehicle in such a way that it can be coupled in a compatible manner to any other vehicle.

Die Elektrokupplung 20 ist mit einem Kupplungsgehäuse 21 und mit einer dieses verschiebbaren Kolben/Zylinder-Einheit 25 ausgestattet. Dabei ist ihr Kolben 28 starr am Kupplungskopf 10 gehalten und der Zylinder 29 und mit ihm das Kupplungsgehäuse 21 auf diesem Kolben 28 bewegbar geführt, was nachfolgend zu Fig. 3 näher erläutert ist.The electric clutch 20 is equipped with a clutch housing 21 and with a piston/cylinder unit 25 that can be displaced therein. Her piston 28 is held rigidly on the coupling head 10 and the cylinder 29 and with it the clutch housing 21 on this piston 28 movably guided, which subsequently to 3 is explained in more detail.

Dieser Kupplungskopf 10 ist mit einem angedeuteten Gehäuse 10' versehen, welches vorderseitig eine Stossfläche 14 für eine flächige Auflage mit einer Stossfläche eines zu kuppelnden Kupplungskopfs für das Koppeln von zwei Schienenfahrzeugen oder dergleichen aufweist. Weitere Details der Verriegelung beim Kuppeln sind nicht näher dargetan, da diese nicht die Erfindung betreffen. Es ist ausserdem eine Leitschaufel 16 vorne bei der Stossfläche 14 angedeutet, die für das Zentrieren zweier aneinander zu kuppelnden Köpfe 10 ausgebildet sind. Des Weiteren führt durch den Kupplungskopf 10 zumindest eine Hauptluftleitung 11 (HLL) hindurch, welche mit einem anstehenden Betriebsdruck von Luft für die Bremsen der Schienenfahrzeuge gespiesen ist.This coupling head 10 is provided with an indicated housing 10', which has an abutment surface 14 on the front for a flat contact with an abutment surface of a coupling head to be coupled for coupling two rail vehicles or the like. Further details of the locking when coupling are not shown in more detail, since they do not relate to the invention. A guide vane 16 is also indicated at the front of the abutment surface 14, which is designed for centering two heads 10 to be coupled to one another. Furthermore, at least one main air line 11 (HLL) leads through the coupling head 10 and is fed with an operating pressure of air for the brakes of the rail vehicles.

In dieser Hauptluftleitung 11 im Kupplungskopf 10 ist ein Schliessventil 30 und ein Verbindungsmittel 40 auf an sich bekannte Weise enthalten. Dieses Verbindungsmittel 40 umfasst einen in seiner Achse verstellbaren Stössel 41, eine diesen führende Hülse 42 und eine Druckfeder 43. Dieser Stössel 41 kann ventilgesteuert zu der Stossfläche 14 des Kupplungskopfes 10 vorstehend und in eine Öffnung einer Hauptluftleitung eines nicht gezeigten gekoppelten Kupplungskopfes eingeschoben werden, damit eine dichte Verbindung der Hauptluftleitung zwischen den Köpfen ermöglicht wird.In this main air line 11 in the coupling head 10, a closing valve 30 and a connecting means 40 are contained in a manner known per se. This connection means 40 includes an adjustable in its axis Plunger 41, a sleeve 42 that guides it, and a compression spring 43. This plunger 41 can be valve-controlled, protruding toward the abutment surface 14 of the coupling head 10 and pushed into an opening in a main air line of a coupled coupling head, so that a tight connection of the main air line between the heads is made possible becomes.

Das Schliessventil 30 in der Hauptluftleitung 11 umfasst eine feststehende Führungshülse 31, einen von dieser geführten Schliesskolben 35 mit einem Hohlraum 36 und einer darin angeordneten Druckfeder 32. Im geschlossenen Zustand steht der Schliesskolben 35 mit seiner oberen Stirnseite 35' an einer Ringfläche der um 90° abgewinkelten Hauptluftleitung 11 dichtend an. Dieser Schliesskolben 35 ist unten in einer Zylinderkammer 34 verschiebbar angeordnet, die via eine Abzweigleitung 38 mit einem Zweiwegventil 37 verbunden ist.The closing valve 30 in the main air line 11 comprises a stationary guide sleeve 31, a closing piston 35 guided by it and having a cavity 36 and a compression spring 32 arranged therein angled main air line 11 sealingly. This closing piston 35 is slidably arranged at the bottom in a cylinder chamber 34 which is connected to a two-way valve 37 via a branch line 38 .

Auch der Stössel 41 wird gleichermassen beim Öffnen des Zweiwegventils 37 vorgeschoben, da er ebenso via diese Abzweigleitung 38 und dieser Verzweigung 38' gespiesen wird.The plunger 41 is also advanced in the same way when the two-way valve 37 is opened, since it is also fed via this branch line 38 and this branching 38'.

Erfindungsgemäss ist von der Hauptluftleitung 11 im Kupplungskopf 10 eine Abzweigleitung 12 mit einem in dieser angeordneten Zweiwegventil 13 zu einem Steuerventil 19 geführt, wobei dieses Steuerventil 19 bei Betätigung des mechanisch schaltbaren Zweiwegventils 13 die eine oder andere Kammer 26, 27 der Kolben/Zylinder-Einheit 25 der Elektrokupplung 20 mit einer Anschlussleitung 15 von einem separaten Druckmedium 17 für ihr Kuppeln und Entkuppeln verbindet bzw. schliesst. Das Druckmedium 17 kann in einem Druckbehälter enthalten sein und ebenfalls mit der Hauptluftleitung HLL oder einer Hauptluftbehälterleitung HBL oder mit einer separaten Druckquelle verbunden sein. Bei einem Druckabfall in der Hauptluftleitung kann mit diesem Druckbehälter sichergestellt werden, dass eine Entkopplung der Elektrokupplung trotzdem möglich wäre.According to the invention, a branch line 12 with a two-way valve 13 arranged in it is led from the main air line 11 in the coupling head 10 to a control valve 19, with this control valve 19 opening one or the other chamber 26, 27 of the piston/cylinder unit when the mechanically switchable two-way valve 13 is actuated 25 of the electro-coupling 20 connects or closes with a connecting line 15 of a separate pressure medium 17 for coupling and uncoupling it. The pressure medium 17 can be contained in a pressure vessel and also be connected to the main air line HLL or a main air tank line HBL or to a separate pressure source. In the event of a pressure drop in the main air line, this pressure vessel can be used to ensure that the electric clutch can still be decoupled.

Mit der Speisung der Steuerung des Steuerventils 19 durch den Luftdruck in der Hauptluftleitung 11 kann der ohnehin vorhandene Druck von 3.5 bis 5.0 bar verwendet werden, wodurch eine Vereinfachung der Steuerung einerseits und aber andererseits eine betriebssichere Betätigung gewährleistet ist.With the supply of the control of the control valve 19 by the air pressure in the main air line 11, the existing pressure of 3.5 to 5.0 bar can be used, which on the one hand simplifies the control and on the other hand ensures reliable operation.

Fig. 2 zeigt eine Variante einer Steuerung der Elektrokupplung 20, bei der die Betätigung der Kolben/Zylinder-Einheit 25 zum Verschieben für das Koppeln der Elektrokupplung 20 erfindungsgemäss mittels der Druckluft der Hauptluftleitung 11 erfolgt. 2 shows a variant of a control of the electric clutch 20, in which the actuation of the piston/cylinder unit 25 for displacement for the coupling of the electric clutch 20 takes place according to the invention by means of the compressed air of the main air line 11.

Es führt zu diesem Zweck eine von der Hauptluftleitung 11 wegführende Abzweigleitung 12 mit einem in dieser angeordneten Zweiwegventil 13 direkt in eine erste Kammer 26 der Kolben/Zylinder-Einheit 25, um letztere beim Öffnen des Zweiwegventils 13 in die Position des gekuppelten Zustandes der Elektrokupplung 20 zu verstellen, indes eine Anschlussleitung 15 an ein separates Druckmedium 17 in eine zweite Kammer 27 der Kolben/Zylinder-Einheit 25 führend für ihr Entkuppeln vorgesehen ist. Diese zweite Kammer 27 ist dabei auf derjenigen Seite im Zylinder 29 angeordnet, bei der ihr Kolben 28 mit der Kolbenstange 28' starr am Kupplungskopf gehalten ist. Es ist in dieser Anschlussleitung 15 noch ein Druckreduzierventil 22 enthalten, mittels dem eine höhere Druckdifferenz zwischen den beiden Kammern 26, 27 herbeigeführt wird.For this purpose, a branch line 12 leading away from the main air line 11 with a two-way valve 13 arranged in it leads directly into a first chamber 26 of the piston/cylinder unit 25, in order to move the latter when the two-way valve 13 is opened into the position of the coupled state of the electric clutch 20 to adjust, while a connecting line 15 is provided leading to a separate pressure medium 17 in a second chamber 27 of the piston / cylinder unit 25 for their uncoupling. This second chamber 27 is arranged on that side in the cylinder 29 on which its piston 28 is held rigidly on the coupling head with the piston rod 28'. There is one more in this connection line 15 Pressure reducing valve 22 included, by means of which a higher pressure difference between the two chambers 26, 27 is brought about.

In Fig. 2 ist noch strichpunktiert eine nicht erfindungsgemäße vereinfachte Variante angedeutet, bei der diese strichpunktiert gezeigte Leitung 12' direkt von der Hauptluftleitung 11 nach dem Schliessventil 30 in die Kammer 26 der Kolben/Zylinder-Einheit 25 führt, dies ohne oder mit einem Betätigungsventil. Die Abzweigleitung 12 mit dem Zweiwegventil 13 würde dann einzig zu der Abzweigleitung 38 geführt sein und es würde eine Druckerzeugung in der Kammer 26 in dem Moment erfolgen, wenn das Schliessventil 30 beim Kuppeln geöffnet würde.In 2 a simplified variant not according to the invention is also indicated in dot-dash lines, in which this line 12′ shown in dot-dash lines leads directly from the main air line 11 after the closing valve 30 into the chamber 26 of the piston/cylinder unit 25, with or without an actuating valve. The branch line 12 with the two-way valve 13 would then only lead to the branch line 38 and pressure would be generated in the chamber 26 at the moment when the closing valve 30 would be opened during coupling.

im Prinzip könnte die Abzweigleitung 12 mit dem Zweiwegventil 13 ganz weggelassen werden und diese strichpunktiert gezeigte Leitung 12' ebenso in die Abzweigleitung 38 geführt sein, was nicht veranschaulicht ist.In principle, the branch line 12 with the two-way valve 13 could be omitted entirely and this line 12', shown in broken lines, could also be routed into the branch line 38, which is not illustrated.

Anstelle dieser in die zweite Kammer 27 führenden Anschlussleitung 15 und dem Druckmedium 17 könnte eine Druckfeder 33, wie strichpunktiert angedeutet, in dieser Kammer 27 angeordnet sein, welche permanent einen Druck auf den Kolben 28 ausüben und damit ein Entkuppeln bewirken würde, sobald der Druck in der andern Kammer 26 gesenkt wird, bzw. beim Aufbau eines Drucks in der letzteren Kammer 26 ein Kuppeln erfolgen würde.Instead of this connecting line 15 leading into the second chamber 27 and the pressure medium 17, a compression spring 33 could be arranged in this chamber 27, as indicated by dot-dashed lines, which would permanently exert pressure on the piston 28 and thus cause a decoupling as soon as the pressure in of the other chamber 26 is lowered, or when a pressure builds up in the latter chamber 26, coupling would take place.

Fig. 3 zeigt eine Seitenansicht der Elektrokupplung 20, welche diese Stecker und/oder Steckdosen 45 in dem Kupplungsgehäuse 21, ein zum Schienenfahrzeug wegführendes Elektrokabel 46, eine auf der Oberseite angeordnete Tragplatte 44 mit einem wegragenden Bügel 44' zur starren Halterung des Kolbens 28, die Kolben/Zylinder-Einheit 25, ein aufklappbarer Deckel 47 vorne bei den Steckern und/oder Steckdosen 45 für den Schutz dieser im entkoppelten Zustand, ein Gestänge 48 für das Auf- und Zuklappen des Deckels 47 und eine Führungsanordnung 49 für das Kupplungsgehäuse 21 aufweist. Es sind dabei beidseitig je ein den Deckel 47 haltendes Gestänge 48 und bei der Führungsanordnung 49 sind ebenso vorteilhaft zwei nebenaneinander angeordnete Gleitstangen 51 und auf diesen geführte Gleitelemente 52 angeordnet. 3 shows a side view of the electric coupling 20, which has these plugs and/or sockets 45 in the coupling housing 21, an electric cable 46 leading away to the rail vehicle, one on the top arranged support plate 44 with a protruding bracket 44' for rigidly holding the piston 28, the piston/cylinder unit 25, a hinged cover 47 at the front of the plugs and/or sockets 45 to protect them in the decoupled state, a linkage 48 for the Opening and closing the cover 47 and a guide assembly 49 for the clutch housing 21 has. There are rods 48 holding the cover 47 on both sides, and in the guide arrangement 49 two sliding rods 51 arranged next to one another and sliding elements 52 guided on them are also advantageously arranged.

Die Erfindung ist mit den obigen Ausführungsbeispielen ausreichend dargetan. Sie könnte aber noch durch weitere Varianten zusätzlich erläutert sein.The invention is sufficiently demonstrated with the above exemplary embodiments. However, it could also be additionally explained by further variants.

Die oben erläuterten Ventile sind, wenn nicht anders erläutert ist, als Zweiwegventile gebaut, die bei Betätigung in eine Offenstellung, hingegen mittels Federelementen zurück in die Schliessstellung gebracht werden. Selbstverständlich könnten aber diese Ventile je nach Bedarf auch anders ausgestaltet sein, zum Beispiel als Mehrwegventile, wie als 5/2-Wegeventile, monostabil, bistabil, die pneumatisch, mechanisch und/oder elektrisch betätigbar sind.Unless otherwise stated, the valves explained above are constructed as two-way valves which, when actuated, are brought into an open position, but are brought back into the closed position by means of spring elements. Of course, these valves could also be designed differently as required, for example as multi-way valves, such as 5/2-way valves, monostable, bistable, which can be actuated pneumatically, mechanically and/or electrically.

Die Kolben/Zylinder-Einheit (25) kann auch als Differentialkolben ausgeführt sein, bei dem die Kammer 27 permanent beispielsweise via diese Druckfeder 33 oder von Druckluft dauernd beaufschlagt ist. Zum Ein- und Ausfahren der Elektrokupplung wird dann nur die Kammer 26 mit Druckluft beaufschlagt oder entlüftet. Die Differenzkraft kann durch den Einsatz eines Druckreduzierventils in der Zuleitung zur Kammer 27 erhöht werden.The piston/cylinder unit (25) can also be designed as a differential piston, in which the chamber 27 is constantly acted upon, for example via this compression spring 33 or by compressed air. To move the electric clutch in and out, only chamber 26 is pressurized with compressed air or vented. The differential force can be achieved through the use a pressure reducing valve in the supply line to chamber 27 can be increased.

Der Antrieb der Elektrokupplung könnte anstelle eines Pneumatikzylinders ebenso über ein Hebelsystem erfolgen, wobei sich die Endlage in einem Übertotpunkt wie bei einem Kniehebel befinden könnte, bei der ebenfalls eine Betätigung mittels einer Kolben/Zylinder-Einheit oder ähnlichem erfolgen würde.The electric clutch could also be driven by a lever system instead of a pneumatic cylinder, with the end position being in an over-center position as with a toggle lever, which would also be actuated by means of a piston/cylinder unit or the like.

Die Betätigung der Kolben/Zylinder-Einheit zum Verschieben für das Koppeln der Elektrokupplung könnte anstelle der Druckluft der Hauptluftleitung mittels der Druckluft der Hauptbehälterluftleitung oder eines separaten Druckmediums erfolgen. Es müsste dann eine entsprechende Abzweigleitung in analoger Weise von dieser Hauptbehälterluftleitung wegführen.The actuation of the piston/cylinder unit for shifting for the coupling of the electric clutch could take place by means of the compressed air of the main reservoir air line or a separate pressure medium instead of the compressed air of the main air line. A corresponding branch line would then have to lead away from this main container air line in an analogous manner.

Claims (4)

  1. Coupling with an electric coupling in particular for a rail vehicle, in which the electric coupling (20) is equipped with a coupling housing (21) with a piston/cylinder unit (25) displaceable this, which are guided on a coupling head (10), wherein the coupling head (10) having a main air line (11) passing through it with an applied operating pressure for the brakes of the rail vehicles, characterised in that
    the control of the piston/cylinder unit (25) at least for coupling the electric coupling (20) is effected by means of the compressed air of the main air line (11), wherein a branch line (12) with a two-way valve (13) or multi-way valve arranged therein, which can be actuated pneumatically, mechanically and/or electrically, leads away from the main air line (11) to a control valve (19), wherein this control valve (19), on actuation of the two-way valve (13) or multi-way valve, connects or closes the one or other chamber (26, 27) of the piston/cylinder unit (25) of the electric coupling (20) with a connection line (15) to a separate pressure medium (17) for its coupling and decoupling.
  2. Coupling with an electric coupling in particular for a rail vehicle, in which the electric coupling (20) is equipped with a coupling housing (21) with a piston/cylinder unit (25) displaceable this, which are guided on a coupling head (10), wherein the coupling head (10) having a main air line (11) passing through it with an applied operating pressure for the brakes of the rail vehicles, wherein the actuation of the piston/cylinder unit (25) at least for coupling the electric coupling (20) is effected by means of the compressed air of the main air line (11), and wherein a branch line (12) with a two-way valve (13) or multi-way valve arranged therein, which can be actuated pneumatically, mechanically and/or electrically, leads away from the main air line (11) to a first chamber (26) of the piston/cylinder unit (25) in order to move the latter into the position of the coupled state of the electric coupling (20) upon actuation of the two-way valve (13) or multi-way valve, characterized in that
    a connection line (15) to a separate pressure medium is provided leading into a second chamber (27) of the piston/cylinder unit (25) of the electric coupling (20) for its uncoupling.
  3. Coupling according to any of the claims 1 or 2, characterized in that
    a closing valve (30) is contained in the main air line (11) in the coupling head (10), which closing valve is shaped in such a way that in the closed state it is pressed in the closing direction by a compression spring (32).
  4. Coupling according to claim 1 or 2, characterized in that
    the two-way valve (13, 37) in the branch line (12, 38) can be actuated by a switch, which can be activated in each case during coupling or uncoupling of the coupling head and effects a switching.
EP19214258.6A 2019-06-14 2019-12-06 Coupling with an electric coupling, especially for a rail vehicle Active EP3750771B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH000805/2019A CH716316B1 (en) 2019-06-14 2019-06-14 Coupling head, in particular for a rail vehicle.
CH01535/19A CH716324A2 (en) 2019-06-14 2019-12-03 Coupling with an electric coupling, especially for a rail vehicle.

Publications (2)

Publication Number Publication Date
EP3750771A1 EP3750771A1 (en) 2020-12-16
EP3750771B1 true EP3750771B1 (en) 2023-04-05

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EP19214258.6A Active EP3750771B1 (en) 2019-06-14 2019-12-06 Coupling with an electric coupling, especially for a rail vehicle

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EP (1) EP3750771B1 (en)
PL (1) PL3750771T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH718997A2 (en) 2021-09-27 2023-03-31 Faiveley Transp Schwab Ag Coupling, in particular for a rail vehicle.
DE102022131836A1 (en) * 2022-12-01 2024-06-06 Voith Patent Gmbh ELECTROCONTACT COUPLING FOR AN AUTOMATIC CENTER BUFFER COUPLING OF A RAIL-GUIDED VEHICLE AND AUTOMATIC CENTER BUFFER COUPLING WITH SUCH AN ELECTROCONTACT COUPLING
CH720319A2 (en) 2022-12-12 2024-06-14 Faiveley Transp Schwab Ag Coupling for a rail vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104551B (en) * 1956-12-06 1961-04-13 Scharfenbergkupplung Gmbh Switching device for the travel lock of rail vehicles
DE1405664C3 (en) * 1961-10-14 1974-09-12 Wsesojusny Nautschno-Issledowatelskij Institut Schelesnodoroschnowo Transporta, Moskau Automatic central buffer coupling for rail vehicles
GB1114637A (en) * 1967-02-27 1968-05-22 Linke Hofmann Busch Improvements in or relating to automatic mechanical couplings
CH517012A (en) * 1970-01-26 1971-12-31 Westinghouse Italiana Device for the automatic opening and closing control of the brake head valves when coupling two railway vehicles equipped with automatic coupling
DE19704966C2 (en) * 1997-01-28 1999-03-25 Mannesmann Ag Device for actuating shut-off devices, in particular in railway wagons
DE19829393A1 (en) 1998-07-01 2000-01-05 Fischer Georg Verkehrstechnik Locking mechanism for coupling arrangements, especially for rail vehicles
CH702215A2 (en) 2009-11-13 2011-05-13 Schwab Verkehrstechnik Ag Automatic coupling for rail vehicles with side buffers.
CN107031680B (en) * 2017-04-18 2018-09-14 青岛思锐科技有限公司 Coupler-uncoupling control mechanism

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PL3750771T3 (en) 2023-09-04

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