EP3995382B1 - Pivot device for a clutch in particular of a railway vehicle - Google Patents

Pivot device for a clutch in particular of a railway vehicle Download PDF

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Publication number
EP3995382B1
EP3995382B1 EP20207583.4A EP20207583A EP3995382B1 EP 3995382 B1 EP3995382 B1 EP 3995382B1 EP 20207583 A EP20207583 A EP 20207583A EP 3995382 B1 EP3995382 B1 EP 3995382B1
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EP
European Patent Office
Prior art keywords
drawbar
plate
support flange
overload
elements
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
EP20207583.4A
Other languages
German (de)
French (fr)
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EP3995382A1 (en
Inventor
Stefan FAAS
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.)
Faiveley Transport Schwab AG
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Faiveley Transport Schwab AG
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Publication date
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Publication of EP3995382A1 publication Critical patent/EP3995382A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/10—Draw-gear combined with buffing appliances with separate mechanical friction shock-absorbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/06—Draw-gear combined with buffing appliances with rubber springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories
    • B61G7/10—Mounting of the couplings on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories
    • B61G7/10—Mounting of the couplings on the vehicle
    • B61G7/12—Adjustable coupling bars, e.g. for centralisation purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories
    • B61G7/14—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/20—Details; Accessories
    • B61G9/24—Linkages between draw-bar and framework

Definitions

  • the invention relates to a linkage device for a coupling, in particular of a rail vehicle, with a drawbar and several spring elements mounted on it to dampen the tensile and compressive forces that arise.
  • a plate arranged between these and a support flange that can be fastened to the rail vehicle are arranged, on which the plate that supports the drawbar is held.
  • a linkage device of this type is described in the publication EP3 385 143
  • the coupling head is connected to a drawbar which is hinged to a steering pin of the rail vehicle and which is provided with spring elements sitting on it for dampening the compressive and tensile forces which arise when the rail vehicle is coupled.
  • the rotating plate is mounted in a sleeve-shaped housing with a steering pin and can be moved axially in a flange.
  • An overload protection device is provided, whereby in normal operation the housing is axially fixed in the flange against each other with overload elements, while in the event of an overload the overload elements are sheared off by the housing and the latter is pushed backwards by the flange together with the rotating plate and the pull rod with the spring elements.
  • This has the advantage that after the overload elements are sheared off, for example as a result of a collision with another vehicle, the pull rod together with the plate and the spring elements has enough space to be moved.
  • this requires this complex structure on the one hand and also means that after the overload elements are sheared off the spring assembly can only be removed together with the housing.
  • the publication WO 2016/0000601 discloses a coupling connector with a mounting seat, at least two energy absorbing components, a pull rod and a round cylinder, the latter being mounted within a first mounting hole of the mounting seat and limiting the axial movement of the cylinder by means of a cutting component.
  • a deflection plate is provided within the cylinder, which runs approximately perpendicular to the axial direction and movably supports the pull rod.
  • a guide groove is provided on the outside of the cylinder, into which a guide pin engages.
  • the invention is based on the object of avoiding these disadvantages and of creating a linkage device of the type mentioned at the outset, which is provided with a simple construction and is easy to assemble.
  • the pull rod with the spring elements mounted on it and the plate arranged between them can be inserted into the support flange as a modular unit and the plate can be connected to the support disks placed in the openings using the overload elements.
  • the plate is manufactured without a pivot pin and the housing present in the known linkage device is omitted, which is very advantageous in terms of manufacturing technology.
  • the invention further provides that a fastening means for fixing the support disks to the plate is provided, preferably in the axis of rotation of the support disks arranged coaxially to one another.
  • the plate is fitted with two overload elements arranged in pairs one after the other in the axial direction of the tie rod.
  • the number, arrangement and dimensions of the overload elements installed in the support disks can be adapted to the respective operating conditions from case to case.
  • the articulation device also provides that the plate and the support disks arranged coaxially on both sides of it are pivotably mounted in the openings of the support flange about a vertical axis.
  • the pull rod is pivotably mounted in the plate by a swivel joint, by means of which the pull rod can pivot both horizontally and vertically.
  • the linkage device shown consists essentially of a drawbar 1 that can be connected to a connecting rod, a coupling head, a spacer tube, a shell sleeve, an energy absorption element or the like, with several spring elements 2 mounted on this to dampen the compressive and tensile forces that arise in the coupled state.
  • a support flange 3 that can be attached to a vehicle body or the like of the rail vehicle (not shown in detail) is provided, which is provided with openings 3' for its attachment.
  • the drawbar 1 is mounted in a plate 5 arranged between these spring elements 2.
  • Such a linkage device is suitable for rail vehicles of all types, such as passenger cars, freight cars, locomotives or cars for other purposes.
  • the plate 5 is connected on its outer circumference opposite one another to a support disk 10, 11 in an opening 8', 9' of the support flange 3 by at least two overload elements 14a, 14b arranged next to one another, these overload elements 14a, 14b being arranged with their axes 14 parallel to one another in a plane in the direction the tie rod 1 and can be sheared off in the event of an overload in the compression or tension direction of the tie rod.
  • these overload elements could also be arranged in a different way than parallel and in one plane.
  • the shown cutting plane along the axes 14 of the overload elements 14a, 14b arranged in pairs is arranged at a distance from the axis of rotation A of the support disks 10, 11 or from the longitudinal axis of the pull rod.
  • the support disks 10, 11 arranged coaxially to one another and the plate 5, which are located in these openings 8' of projections 8, 9 of the support flange 3, are provided with a central bore 4 in the axial direction A, in each of which a detachable fastening means 4a is provided for fixing them to the plate 5.
  • This fastening means 4a is preferably a screw and serves primarily as an assembly aid. It could also be screwed in at a different position than shown and several of these could be used per support disk 10, 11. In the event of an overload, this fastening means 4a is also sheared off.
  • the spring elements 2 arranged in a row on both sides of the plate 5 are equipped with five pads in the compression direction and three in the tension direction. Depending on the circumstances, this number can be varied between at least one spring element 2 in front of and behind the plate or, as shown, more than two.
  • overload elements 14a, 14b are preferably designed as shear bolts or shear screws. However, they could also be designed in the form of discs, sliding blocks or other shapes and provided with groove-shaped predetermined breaking points, and they are dimensioned such that they are sheared off when a predetermined overload occurs.
  • the pull rod 1 is pushed backwards together with the spring elements 2 and the plate 5 when an excessive impact force occurs. Depending on the strength of an impact, this can be overcome without significant damage to the clutch or vehicle. This shows that the number and/or dimensions of the overload elements used can be varied from case to case so that their effectiveness is optimally designed under the respective requirements of the maximum impact or tensile forces.
  • the plate 5 has two flat edge portions 6, 7 arranged diametrically opposite one another, which are guided with almost no play in projections 8, 9 flattened on the inside of the support flange 3.
  • these flat edge portions could also be cylindrical or similar.
  • a cover 12 which closes the opening 8', 9' can be fastened to the projections 8, 9 and which can be closed with a number of fastening means 12', e.g. screws.
  • This robust fastening of the cover 12 ensures that the support disks are held securely in the support flange in the event of shearing and that they can be easily replaced.
  • the articulation device provides that the plate 5 and the support disks 10, 11 arranged coaxially on both sides of it are pivotably mounted in the openings 8', 9' of the projections 8, 9 of the support flange 3 about a vertical axis A.
  • the pull rod 1 is preferably mounted in the plate 3 so that it can be deflected by a swivel joint 13. A sleeve with a spherical shape on the outer circumference of the swivel joint 13 can be seen. This allows the pull rod 1 to be pivoted both horizontally and vertically by a limited angle.
  • the spring elements 2 with the plate 5 in between are installed on the pull rod 1 between a front sleeve 19 and a rear locking disk 15. They can be fixed and pre-tensioned against the sleeve 19 by means of a secured nut 16 or the like that can be screwed into the rear end of the pull rod.
  • the support flange 3 is assigned a centering device, which has a centering means 20 on at least one side of the support flange 3 or preferably on both sides, which consists of a spring pressure element 21 with a sliding element 22 and a guide rail 23 interacting with the latter with a guide track 23'.
  • This spring pressure element 21 comprises a compression spring 21', a movable piston element 24 acted upon by the latter, on which the sliding element 22, preferably provided as a roller, is mounted.
  • This sliding element 22 is pressed by the spring pressure element 21 onto the guide rail 23, which is attached laterally to the plate 5 and runs parallel to the longitudinal axis of the pull rod 1.
  • This guide rail 23 could also be directly on the plate and its shape could be cylindrical, curved or otherwise, depending on the desired characteristics of the centering.
  • This centering with the two centering means 20 on both sides of the plate 5 thus interacts with the unit formed by the pull rod 1 and the plate 5 in such a way that the pull rod 1 is always positioned with its longitudinal axis in the unloaded state in a horizontal orientation approximately in the longitudinal direction of the rail vehicle.
  • These sliding elements 23 act on the guide rail 23 offset from the rotation axis A with respect to the longitudinal axis of the pull rod 1, so that a torque is exerted on the plate.
  • the support flange 3 can have a connecting arm, which is articulated on it in a bearing 17 and preferably aligned parallel to the pull rod, with a compression spring loading it in the longitudinal direction, in a radial extension of the projection 9, which is not shown in detail.
  • a connecting arm is shown in the European Application No. 19 214 224.8 explained in detail and therefore not described in more detail below.
  • the drawbar 1 In the event of a collision with an obstacle or another vehicle, the drawbar 1 is subjected to overload forces which, when they reach a predetermined strength, cause the overload elements to shear off. This allows the drawbar 1 together with the spring assembly 2 and plate 5 to be pushed backwards into a vehicle body of the rail vehicle through the opening in the support flange 3 which is flush with the outer profile of the plate. This means that the spring assembly can be reinstalled without great effort after a crash, provided that no irreversible damage has occurred.
  • Fig.3 For connecting the support disks 10, 11 to the plate 5, four overload elements 14a, 14b are provided, which are arranged in pairs with their axes 14 parallel to each other and in the plane in the direction of the pull rod. These four overload elements 14a, 14b are advantageously arranged symmetrically and at the same distance from the axis A. In addition, the centric arrangement of the fastening means 4a, the cover 12 and the number of its fastening means 12' are visible.
  • the support disks could be fixed in the respective opening of the support flange in the respective opening.
  • the number of overload elements for each support disk is at least two. In principle, these could be arranged on the plane of the longitudinal axis of the pull rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Springs (AREA)

Description

Die Erfindung betrifft eine Anlenkungseinrichtung für eine Kupplung insbesondere eines Schienenfahrzeugs, mit einer Zugstange und mehreren auf dieser zum Dämpfen der entstehenden Zug- und Druckkräfte gelagerte Federelemente. Zudem ist eine zwischen diesen angeordnete Platte sowie ein am Schienenfahrzeug befestigbarer Stützflansch angeordnet, an dem diese die Zugstange lagernde Platte gehalten ist.The invention relates to a linkage device for a coupling, in particular of a rail vehicle, with a drawbar and several spring elements mounted on it to dampen the tensile and compressive forces that arise. In addition, a plate arranged between these and a support flange that can be fastened to the rail vehicle are arranged, on which the plate that supports the drawbar is held.

Eine Anlenkungseinrichtung dieser Art ist in der Druckschrift EP 3 385 143 geoffenbart. Der Kupplungskopf ist mit einer an einem Lenkbolzen des Schienenfahrzeugs angelenkten Zugstange verbunden, die mit auf ihr sitzenden Federelementen zum Dämpfen der im gekuppelten Zustand des Schienenfahrzeugs entstehenden Druck- und Zugkräfte versehen ist.A linkage device of this type is described in the publication EP3 385 143 The coupling head is connected to a drawbar which is hinged to a steering pin of the rail vehicle and which is provided with spring elements sitting on it for dampening the compressive and tensile forces which arise when the rail vehicle is coupled.

Die drehbare Platte ist mit einem Lenkbolzen in einem hülsenförmigen Gehäuse gelagert, wobei es axial in einem Flansch verschiebbar ist.The rotating plate is mounted in a sleeve-shaped housing with a steering pin and can be moved axially in a flange.

Es ist dabei eine Überlastsicherung vorgesehen, bei welcher im Normalbetrieb das Gehäuse axial in dem Flansch gegeneinander mit Überlastelementen fixiert sind, während bei Überlast dieselben durch das Gehäuse abgeschert und letzteres durch den Flansch zusammen mit der drehbaren Platte und der Zugstange mit den Federelementen nach hinten geschoben wird. Dies hat den Vorteil, dass nach Abscheren der Überlastelemente, etwa infolge eines Zusammenstosses mit einem anderen Fahrzeug, die Zugstange zusammen mit der Platte und den Federelementen genügend Platz für ein Verschieben vorhanden ist. Das bedingt aber einerseits diesen aufwendigen Aufbau und hat zum anderen zur Folge, dass nach Abscheren der Überlastelemente das Federpaket nur zusammen mit dem Gehäuse lösbar ist.An overload protection device is provided, whereby in normal operation the housing is axially fixed in the flange against each other with overload elements, while in the event of an overload the overload elements are sheared off by the housing and the latter is pushed backwards by the flange together with the rotating plate and the pull rod with the spring elements. This has the advantage that after the overload elements are sheared off, for example as a result of a collision with another vehicle, the pull rod together with the plate and the spring elements has enough space to be moved. However, this requires this complex structure on the one hand and also means that after the overload elements are sheared off the spring assembly can only be removed together with the housing.

Die Druckschrift WO 2016/0000601 offenbart einen Kupplungsverbinder mit einem Montagesitz , mindestens zwei energieabsorbierende Komponenten, eine Zugstange und einen runden Zylinder, wobei letzterer innerhalb eines ersten Montagelochs des Montagesitzes montiert ist und die axiale Bewegung des Zylinders mittels einer Schneidkomponente begrenzt. Innerhalb des Zylinders ist eine Ablenkplatte versehen, die annähernd senkrecht zu der axialen Richtung verläuft und die Zugstange beweglich lagert. Aussen am Zylinder ist eine Führungsnut versehen, in die ein Führungsstift eingreift. Wenn der Kupplungsverbinder überlastet ist, werden diese Schneidkomponenten abgeschnitten und es wird dadurch ermöglicht, dass die Zugstange und der Zylinder in einer geführten Weise mittels der Führungsnut verschoben werden.The publication WO 2016/0000601 discloses a coupling connector with a mounting seat, at least two energy absorbing components, a pull rod and a round cylinder, the latter being mounted within a first mounting hole of the mounting seat and limiting the axial movement of the cylinder by means of a cutting component. A deflection plate is provided within the cylinder, which runs approximately perpendicular to the axial direction and movably supports the pull rod. A guide groove is provided on the outside of the cylinder, into which a guide pin engages. When the coupling connector is overloaded, these cutting components are cut off, thereby enabling the pull rod and the cylinder to be displaced in a guided manner by means of the guide groove.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und eine Anlenkungseinrichtung der eingangs genannten Art zu schaffen, die mit einer einfachen Konstruktion versehen und leicht montierbar ist.The invention is based on the object of avoiding these disadvantages and of creating a linkage device of the type mentioned at the outset, which is provided with a simple construction and is easy to assemble.

Diese Aufgabe wird erfindungsgemäss durch die Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the features of claim 1.

Damit ist zwischen dem Stützflansch und der Platte eine sichere Verbindung gebildet, die bei einem Crash bzw. bei einer Überbelastung funktionssicher lösbar ist, jedoch im Normalbetrieb eine einwandfreie Anlenkung sicherstellt.This creates a secure connection between the support flange and the plate, which can be reliably released in the event of a crash or overload, but ensures perfect linkage during normal operation.

Die Zugstange mit den auf dieser gelagerten Federelementen und der dazwischen angeordneten Platte kann als modulare Einheit in den Stützflansch eingeschoben und die Platte mittels den Überlastelementen mit den in den Öffnungen platzierten Tragscheiben verbunden werden. Die Platte ist dabei ohne Drehzapfen gefertigt und dieses bei der bekannten Anlenkungseinrichtung vorhandene Gehäuse entfällt, was herstellungstechnisch sehr vorteilhaft ist.The pull rod with the spring elements mounted on it and the plate arranged between them can be inserted into the support flange as a modular unit and the plate can be connected to the support disks placed in the openings using the overload elements. The plate is manufactured without a pivot pin and the housing present in the known linkage device is omitted, which is very advantageous in terms of manufacturing technology.

Die Erfindung sieht zudem vor, dass vorzugsweise in der Drehachse der koaxial zueinander angeordneten Tragscheiben je ein Befestigungsmittel für ihre Fixierung an der Platte vorgesehen ist.The invention further provides that a fastening means for fixing the support disks to the plate is provided, preferably in the axis of rotation of the support disks arranged coaxially to one another.

Im Sinne eines möglichst graduellen Wirksamwerdens ist es vorteilhaft, wenn der Platte jeweils zwei paarweise in Achsrichtung der Zugstange nacheinander angeordnete Überlastelemente platziert sind. Die Anzahl, Anordnung und Dimensionierung der in den Tragscheiben eingebauten Überlastelemente kann von Fall zu Fall den jeweiligen Betriebsbedingungen angepasst werden.In order to ensure that the effect is as gradual as possible, it is advantageous if the plate is fitted with two overload elements arranged in pairs one after the other in the axial direction of the tie rod. The number, arrangement and dimensions of the overload elements installed in the support disks can be adapted to the respective operating conditions from case to case.

Die erfindungsgemässe Anlenkungseinrichtung sieht auch vor, dass die Platte sowie die beidseitig zu ihr koaxial angeordneten Tragscheiben in den Öffnungen des Stützflansches um eine senkrechte Achse schwenkbar gelagert sind. Zudem ist die Zugstange von einem Drehgelenk in der Platte auslenkbar gelagert, durch welche die Zugstange sowohl horizontal als auch vertikal schwenkbar ist.The articulation device according to the invention also provides that the plate and the support disks arranged coaxially on both sides of it are pivotably mounted in the openings of the support flange about a vertical axis. In addition, the pull rod is pivotably mounted in the plate by a swivel joint, by means of which the pull rod can pivot both horizontally and vertically.

Dies ermöglicht eine genügende Auslenkung der Zugstange und damit des Kupplungskopfs oder ähnlichem im montierten Zustand am Schienenfahrzeug.This allows sufficient deflection of the drawbar and thus of the coupling head or similar when mounted on the rail vehicle.

Die Erfindung ist nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigen:

Fig.1
eine erfindungsgemässe Anlenkungseinrichtung in einem Längsschnitt durch die Achsen der Überlastelemente;
Fig. 2
die Anlenkungseinrichtung nach Fig. 1 in einem bei der Längsachse der Zugstange winkelversetzten Längsschnitt; und
Fig.3
eine Draufsicht der Anlenkungseinrichtung nach Fig. 1.
The invention is explained in more detail below using exemplary embodiments with reference to the drawing.
Fig.1
a linkage device according to the invention in a longitudinal section through the axes of the overload elements;
Fig.2
the linkage device according to Fig.1 in a longitudinal section offset at an angle to the longitudinal axis of the tie rod; and
Fig.3
a plan view of the linkage device according to Fig.1 .

Die in Fig.1 gezeigte Anlenkungseinrichtung besteht im wesentlichen aus einer mit einer Verbindungsstange, einem Kupplungskopf, einem Distanzrohr, einer Schalenmuffe, einem Energieabsorbtionselement oder ähnlichem verbindbaren Zugstange 1 mit mehreren auf dieser gelagerten Federelementen 2 zum Dämpfen der im gekuppelten Zustand entstehenden Druck- und Zugkräfte. Zudem ist ein an einem nicht näher gezeigten Fahrzeugkasten oder dergleichen des Schienenfahrzeugs befestigbaren Stützflansch 3 vorgesehen, der mit Öffnungen 3' für seine Befestigung versehen ist. Die Zugstange 1 ist dabei in einer zwischen diesen Federelementen 2 angeordneten Platte 5 gelagert. Eine solche Anlenkungseinrichtung eignet sich für Schienenfahrzeuge aller Art, wie zum Beispiel für Personen-, Güterwagen, Lokomotiven oder Wagen für andere Zwecke.In the Fig.1 The linkage device shown consists essentially of a drawbar 1 that can be connected to a connecting rod, a coupling head, a spacer tube, a shell sleeve, an energy absorption element or the like, with several spring elements 2 mounted on this to dampen the compressive and tensile forces that arise in the coupled state. In addition, a support flange 3 that can be attached to a vehicle body or the like of the rail vehicle (not shown in detail) is provided, which is provided with openings 3' for its attachment. The drawbar 1 is mounted in a plate 5 arranged between these spring elements 2. Such a linkage device is suitable for rail vehicles of all types, such as passenger cars, freight cars, locomotives or cars for other purposes.

Erfindungsgemäss ist die Platte 5 an ihrem Aussenumfang gegenüberliegend mit je einer Tragscheibe 10, 11 in jeweils einer Öffnung 8', 9' des Stützflansches 3 durch mindestens zwei nebeneinander angeordnete Überlastelemente 14a, 14b verbunden, wobei diese Überlastelemente 14a, 14b mit ihren Achsen 14 parallel zueinander in einer Ebene in Richtung der Zugstange 1angeordnet und bei einer Überbelastung in Druck- oder Zugrichtung der Zugstange abscherbar sind. Diese Überlastelemente könnten aber auch anders als parallel und in einer Ebene angeordnet sein.According to the invention, the plate 5 is connected on its outer circumference opposite one another to a support disk 10, 11 in an opening 8', 9' of the support flange 3 by at least two overload elements 14a, 14b arranged next to one another, these overload elements 14a, 14b being arranged with their axes 14 parallel to one another in a plane in the direction the tie rod 1 and can be sheared off in the event of an overload in the compression or tension direction of the tie rod. However, these overload elements could also be arranged in a different way than parallel and in one plane.

Die gezeigte Schnittebene entlang der Achsen 14 der paarweise angeordneten Überlastelemente 14a, 14b ist beabstandet zu der Drehachse A der Tragscheiben 10, 11 bzw. zu der Längsachse der Zugstange angeordnet.The shown cutting plane along the axes 14 of the overload elements 14a, 14b arranged in pairs is arranged at a distance from the axis of rotation A of the support disks 10, 11 or from the longitudinal axis of the pull rod.

Gemäss Fig. 2 sind die koaxial zueinander angeordneten Tragscheiben 10, 11 und die Platte 5, welche sich in diesen Öffnungen 8' von Vorsprüngen 8, 9 des Stützflansches 3 befinden, mit einer zentrischen Bohrung 4 in Achsrichtung A versehen, in welche je ein lösbares Befestigungsmittel 4a für ihre Fixierung an der Platte 5 vorgesehen ist. Bei diesem Befestigungsmittel 4a handelt es sich vorzugsweise um eine Schraube und sie dient primär als Montagehilfe. Es könnte auch an einer anderen Position als dargestellt eingeschraubt sein und es könnten mehrere von diesen pro Tragscheibe 10, 11 verwendet werden. Bei einer Überbelastung wird dieses Befestigungsmittel 4a ebenso abgeschert.According to Fig.2 the support disks 10, 11 arranged coaxially to one another and the plate 5, which are located in these openings 8' of projections 8, 9 of the support flange 3, are provided with a central bore 4 in the axial direction A, in each of which a detachable fastening means 4a is provided for fixing them to the plate 5. This fastening means 4a is preferably a screw and serves primarily as an assembly aid. It could also be screwed in at a different position than shown and several of these could be used per support disk 10, 11. In the event of an overload, this fastening means 4a is also sheared off.

Die beidseitig der Platte 5 aneinander gereihten Federelemente 2 sind einerseits mit fünf Pads in Druck- und andererseits drei in Zugrichtung bestückt. Diese Anzahl kann je nach den Gegebenheiten zwischen vor und hinter der Platte wenigstens jeweils einem oder wie dargestellt mehr als zwei Federelementen 2 variiert werden.The spring elements 2 arranged in a row on both sides of the plate 5 are equipped with five pads in the compression direction and three in the tension direction. Depending on the circumstances, this number can be varied between at least one spring element 2 in front of and behind the plate or, as shown, more than two.

Damit kann die zu einer Einheit vormontierte Zugstange 1 mit den Federelementen 2 und der dazwischenliegenden Platte 5 in den am Schienenfahrzeug befestigten Stützflansch 3 eingeschoben und durch diese Überlastelemente 14a, 14b darin gesichert werden, indem sie in den Bohrungen der Platte 5 befestigt werden.This allows the pull rod 1, which is pre-assembled into a unit with the spring elements 2 and the plate 5 in between, to be inserted into the support flange 3 fastened to the rail vehicle and secured therein by these overload elements 14a, 14b by fastening them in the holes in the plate 5.

Diese Überlastelemente 14a, 14b sind vorzugsweise als Abscherbolzen bzw. Abscherschrauben ausgebildet. Sie könnten aber zum Beispiel auch scheiben-, nutenstein- oder andersförmig ausgebildet und mit rillenförmigen Sollbruchstellen versehen sein, und sie sind so bemessen, dass sie beim Auftreten einer vorbestimmten Überbelastung abgeschert werden. Die Zugstange 1 wird zusammen mit den Federelementen 2 und der Platte 5 bei einer übermässigen Stosskraft nach hinten geschoben. Je nach Stärke eines Aufpralls kann dies ohne nennenswerte Kupplungs- oder Fahrzeugschäden überwunden werden. Damit ist dargetan, dass die Anzahl und/oder Dimensionierung der eingesetzten Überlastelemente von Fall zu Fall variiert werden kann, so dass ihre Wirksamkeit unter den jeweiligen Anforderungen der maximalen Stoss- bzw. Zugkräfte optimal ausgelegt ist.These overload elements 14a, 14b are preferably designed as shear bolts or shear screws. However, they could also be designed in the form of discs, sliding blocks or other shapes and provided with groove-shaped predetermined breaking points, and they are dimensioned such that they are sheared off when a predetermined overload occurs. The pull rod 1 is pushed backwards together with the spring elements 2 and the plate 5 when an excessive impact force occurs. Depending on the strength of an impact, this can be overcome without significant damage to the clutch or vehicle. This shows that the number and/or dimensions of the overload elements used can be varied from case to case so that their effectiveness is optimally designed under the respective requirements of the maximum impact or tensile forces.

Die Platte 5 weist zwei diametral zueinander angeordnete Randabflachungen 6, 7 auf, die annähernd spielfrei in innenseitig abgeflachten Vorsprüngen 8, 9 des Stützflansches 3 geführt sind. Im Prinzip könnten diese ebenen Randabflachungen auch zylindrisch oder ähnlich ausgebildet sein.The plate 5 has two flat edge portions 6, 7 arranged diametrically opposite one another, which are guided with almost no play in projections 8, 9 flattened on the inside of the support flange 3. In principle, these flat edge portions could also be cylindrical or similar.

Es ist ferner noch auf den Vorsprüngen 8, 9 jeweils ein die Öffnung 8', 9' abschliessender Deckel 12 befestigbar, der mit einer Anzahl von Befestigungsmitteln 12', z.B. Schrauben, schliessbar ist. Mit dieser robusten Befestigung des Deckels 12 wird erreicht, dass die Tragscheiben bei einem Abscheren sicher im Stützflansch gehalten sind und dass ein Wechsel derselben einfach erfolgen kann.Furthermore, a cover 12 which closes the opening 8', 9' can be fastened to the projections 8, 9 and which can be closed with a number of fastening means 12', e.g. screws. This robust fastening of the cover 12 ensures that the support disks are held securely in the support flange in the event of shearing and that they can be easily replaced.

Die erfindungsgemässe Anlenkungseinrichtung sieht vor, dass die Platte 5 sowie die beidseitig zu ihr koaxial angeordneten Tragscheiben 10, 11 in den Öffnungen 8', 9' der Vorsprünge 8, 9 des Stützflansches 3 um eine senkrechte Achse A schwenkbar gelagert sind. Zudem ist die Zugstange 1 vorzugsweise von einem Drehgelenk 13 in der Platte 3 auslenkbar gelagert. Von dem Drehgelenk 13 ist andeutungsweise eine am Aussenumfang sphärisch ausgebildete Hülse ersichtlich. Damit kann die Zugstange 1 sowohl horizontal als auch vertikal um einen limitierten Winkel geschwenkt werden.The articulation device according to the invention provides that the plate 5 and the support disks 10, 11 arranged coaxially on both sides of it are pivotably mounted in the openings 8', 9' of the projections 8, 9 of the support flange 3 about a vertical axis A. In addition, the pull rod 1 is preferably mounted in the plate 3 so that it can be deflected by a swivel joint 13. A sleeve with a spherical shape on the outer circumference of the swivel joint 13 can be seen. This allows the pull rod 1 to be pivoted both horizontally and vertically by a limited angle.

Die Federelemente 2 mit der dazwischenliegenden Platte 5 sind auf der Zugstange 1 zwischen einer vorderen Muffe 19 und einer hinteren Arretierscheibe 15 eingebaut. Sie können gegen die Muffe 19 mittels einer am hinteren Zugstangenende einschraubbaren gesicherten Mutter 16 oder dergleichen fixiert und vorgespannt werden.The spring elements 2 with the plate 5 in between are installed on the pull rod 1 between a front sleeve 19 and a rear locking disk 15. They can be fixed and pre-tensioned against the sleeve 19 by means of a secured nut 16 or the like that can be screwed into the rear end of the pull rod.

Im Rahmen der Erfindung ist dem Stützflansch 3 eine Mittenzentrierung zugeordnet, die beim Stützflansch 3 wenigstens ein oder vorzugsweise beidseitig je ein Zentriermittel 20 aufweist, welches aus je einem Federdruckorgan 21 mit einem Gleitelement 22 und einer mit letzterem zusammenwirkenden Führungsschiene 23 mit einer Führungsbahn 23' besteht. Dieses Federdruckorgan 21 umfasst eine Druckfeder 21', ein von dieser beaufschlagtes bewegliches Kolbenelement 24, an welchem das vorzugsweise als Rolle vorgesehene Gleitelement 22 gelagert ist. Dieses Gleitelement 22 ist von dem Federdruckorgan 21 an die Führungsschiene 23 angedrückt, welche seitlich bei der Platte 5 befestigt ist und parallel zu der Längsachse der Zugstange 1 verläuft. Diese Führungsschiene 23 könnte auch direkt bei der Platte und ihre Form könnte je nach der gewünschten Charakteristik der Mittenzentrierung zylindrisch, kurven- oder andersförmig ausgebildet sein.Within the scope of the invention, the support flange 3 is assigned a centering device, which has a centering means 20 on at least one side of the support flange 3 or preferably on both sides, which consists of a spring pressure element 21 with a sliding element 22 and a guide rail 23 interacting with the latter with a guide track 23'. This spring pressure element 21 comprises a compression spring 21', a movable piston element 24 acted upon by the latter, on which the sliding element 22, preferably provided as a roller, is mounted. This sliding element 22 is pressed by the spring pressure element 21 onto the guide rail 23, which is attached laterally to the plate 5 and runs parallel to the longitudinal axis of the pull rod 1. This guide rail 23 could also be directly on the plate and its shape could be cylindrical, curved or otherwise, depending on the desired characteristics of the centering.

Diese Mittenzentrierung mit den beiden Zentriermitteln 20 beidseitig der Platte 5 wirkt damit derart mit der durch die Zugstange 1 und der Platte 5 gebildeten Einheit zusammen, dass die Zugstange 1 mit ihrer Längsachse im unbelasteten Zustand in horizontaler Ausrichtung stets annähernd in Längsrichtung des Schienenfahrzeugs positioniert wird. Zweckmässigerweise greifen diese Gleitelemente 23 in Bezug auf die Längsachse der Zugstange 1 versetzt zu der Drehachse A an der Führungsschiene 23 an, damit ein Drehmoment auf die Platte bewirkt wird.This centering with the two centering means 20 on both sides of the plate 5 thus interacts with the unit formed by the pull rod 1 and the plate 5 in such a way that the pull rod 1 is always positioned with its longitudinal axis in the unloaded state in a horizontal orientation approximately in the longitudinal direction of the rail vehicle. These sliding elements 23 act on the guide rail 23 offset from the rotation axis A with respect to the longitudinal axis of the pull rod 1, so that a torque is exerted on the plate.

Im gekoppelten Zustand der Einrichtung und der im Fahrbetrieb entstehenden Auslenkungen der Zugstange bzw. einem Drehen der Platte 5 werden die Führungsschienen 23 gegenläufig geschwenkt und folglich werden die Federdruckorgane 21 jeweils auf der einen Seite durch das Gleitelement 22 mehr zusammengedrückt und auf der andern Seite entlastet. Wenn die Anlenkungseinrichtung gelöst ist, wird die Zugstange 1 wieder horizontal in die Mitte justiert.When the device is coupled and the deflections of the drawbar occur during driving or when the plate 5 rotates, the guide rails 23 are pivoted in opposite directions and consequently the spring pressure elements 21 are compressed more on one side by the sliding element 22 and relieved on the other side. When the linkage device is released, the drawbar 1 is adjusted horizontally to the middle again.

Der Stützflansch 3 kann in radialer Verlängerung des Vorsprungs 9 einen an ihm in einem Lager 17 angelenkten vorzugsweise parallel zu der Zugstange ausgerichteten Verbindungsarm mit einer ihn in Längsrichtung belastenden Druckfeder aufweisen, was nicht näher gezeigt ist. Dieser koppelt den Stützflansch 3 mit der Zugstange 1 derart, dass eine stützende Druckkraft erzeugt wird, durch welche sie und der mit ihr verbundene Kupplungskopf in einer bestimmten Höhenposition zentriert werden. Ein solcher Verbindungsarm ist in der Europäischen Anmeldung Nr. 19 214 224.8 ausführlich erläutert und daher nachfolgend nicht näher beschrieben.The support flange 3 can have a connecting arm, which is articulated on it in a bearing 17 and preferably aligned parallel to the pull rod, with a compression spring loading it in the longitudinal direction, in a radial extension of the projection 9, which is not shown in detail. This couples the support flange 3 to the pull rod 1 in such a way that a supporting pressure force is generated, by which it and the coupling head connected to it are centered in a certain height position. Such a connecting arm is shown in the European Application No. 19 214 224.8 explained in detail and therefore not described in more detail below.

Bei einem Zusammenstoss mit einem Hindernis oder einem anderen Fahrzeug wird die Zugstange 1 mit Überlastkräften beansprucht, die bei Erreichen einer vorbestimmten Stärke das Abscheren der Überlastelemente bewirken. Dadurch kann die Zugstange 1 samt Federpaket 2 und Platte 5 durch diese mit dem Aussenprofil der Platte bündige Öffnung des Stützflansches 3 nach hinten in einen Fahrzeugkasten des Schienenfahrzeugs geschoben werden. Somit kann das Federpaket nach einem Crash ohne grossen Aufwand wieder eingesetzt werden, sofern keine irreversiblen Beschädigungen entstanden sind.In the event of a collision with an obstacle or another vehicle, the drawbar 1 is subjected to overload forces which, when they reach a predetermined strength, cause the overload elements to shear off. This allows the drawbar 1 together with the spring assembly 2 and plate 5 to be pushed backwards into a vehicle body of the rail vehicle through the opening in the support flange 3 which is flush with the outer profile of the plate. This means that the spring assembly can be reinstalled without great effort after a crash, provided that no irreversible damage has occurred.

Gemäss Fig. 3 sind für die Verbindung der Tragscheiben 10, 11 mit der Platte 5 je vier Überlastelemente 14a, 14b vorgesehen, die paarweise mit ihren Achsen 14 parallel zueinander und in der Ebene in Richtung der Zugstange angeordnet sind. Vorteilhaft sind diese vier Überlastelemente 14a, 14b symmetrisch und im gleichen Abstand zur Achse A angeordnet. Zudem ist die zentrische Anordnung des Befestigungsmittels 4a, der Deckel 12 und die Anzahl seiner Befestigungsmittel 12' ersichtlich.According to Fig.3 For connecting the support disks 10, 11 to the plate 5, four overload elements 14a, 14b are provided, which are arranged in pairs with their axes 14 parallel to each other and in the plane in the direction of the pull rod. These four overload elements 14a, 14b are advantageously arranged symmetrically and at the same distance from the axis A. In addition, the centric arrangement of the fastening means 4a, the cover 12 and the number of its fastening means 12' are visible.

Die Erfindung ist mit den obigen Ausführungsbeispielen ausreichend dargetan. Sie könnte aber noch durch weitere Varianten erläutert sein. So könnten zum Beispiel die Tragscheiben in der jeweiligen Öffnung des Stützflansches in der jeweiligen Öffnung fixiert sein. Die Anzahl der Überlastelemente bei einer jeweiligen Tragscheibe beträgt mindestens deren zwei. Diese könnten im Prinzip auf der Ebene der Längsachse der Zugstange angeordnet sein.The invention is sufficiently explained with the above embodiments. However, it could be explained by further variants. For example, the support disks could be fixed in the respective opening of the support flange in the respective opening. The number of overload elements for each support disk is at least two. In principle, these could be arranged on the plane of the longitudinal axis of the pull rod.

Claims (8)

  1. Coupler device for a coupling, in particular of a rail vehicle, with a drawbar (1), a plurality of spring elements (2) mounted on the drawbar for damping the tension and pressure forces incurred, with a plate (5) arranged between these, and a support flange (3), which can be secured to the rail vehicle, wherein this plate (5) supporting the drawbar (1) is held on the support flange (3), and is connected at its outer circumference oppositely to a carrier disk (10, 11) in each case in an opening (8', 9') of the support flange (3) by means of at least two overload elements (14a, 14b) arranged next to one another, wherein these overload elements (14a, 14b) can be sheared off in the event of an overload in the pressure or tension direction of the drawbar (1), and wherein in each case at least one spring element (2) is arranged on both sides of the plate (5), characterized in that
    the support flange (3) comprises on both sides in each case a projection (8, 9) with the respective opening (8', 9') for the carrier disks (10, 11), which can be closed on the outside by a respective cover (12) with a number of securing means.
  2. Coupler device according to claim 1, characterized in that
    in the axis (A) of the carrier disks (10, 11), arranged coaxially to one another, in each case a securing means (4a, 4b) is provided for fixing them to the plate (5), wherein the plane formed by the overload elements (14a, 14b) arranged in pairs is located at a distance interval from the axis (A) of the carrier disks (10, 11).
  3. Coupler device according to claim 2, characterized in that
    four overload elements (14a, 14b) are provided for the connection of the respective carrier disk (10, 11) with the plate (5), which are arranged in pairs with their axes (14) parallel to one another, and are arranged in the plane in the direction of the drawbar (1).
  4. Coupler device according to any one of claims 1 to 3, characterized in that
    the drawbar (1) is additionally mounted in the plate (5) by means of a swivel joint (13) in such a way that it can be deflected.
  5. Coupler device according to any one of claims 1 to 4, characterized in that claims
    the plate (5) on the outside respectively the support flange (3) on the inside are dimensioned in such a way that the drawbar (1) with the spring elements (2) mounted on it and the plate (5) arranged between them, can be pushed as one unit into the support flange (3), and the plate (5) can be connected by way of the securing means (4a, 4b) and the overload elements (14a, 14b) to the carrier disks (10, 11) placed in the openings (8', 9').
  6. Coupler device according to any one of claims 1 to 5, characterized in that
    a mid-centring element is assigned to the support flange (3), which interacts with the unit formed by the drawbar (1) and the plate (5) in such a way that the drawbar (1) is adjustable with its longitudinal axis, in the unloaded state, in horizontal alignment always approximately in the longitudinal direction of the rail vehicle.
  7. Coupler device according to claim 6, characterized in that
    this mid-centring element comprises, at the support flange (3), at least one centring means (20), consisting of a spring pressure body (21) with a sliding element (22) and a guide rail (23) interacting with the latter, wherein the guide rail (23) runs parallel to the longitudinal axis of the drawbar (1).
  8. Coupler device according to any one of claims 1 to 7, characterized in that
    arranged at the support flange (3) is a connection arm, aligned preferably parallel to the drawbar (1), at a bearing (17) in extension of one of the projections (9), which is held by the support flange (3) on one side and by the drawbar (1) on the other side, and has the effect of producing a supporting pressure force onto the drawbar (2), and therefore at least a certain centring height position of the coupling head is incurred.
EP20207583.4A 2020-11-09 2020-11-13 Pivot device for a clutch in particular of a railway vehicle Active EP3995382B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH001437/2020A CH718041B1 (en) 2020-11-09 2020-11-09 Articulation device for a coupling, in particular for a rail vehicle.

Publications (2)

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EP3995382A1 EP3995382A1 (en) 2022-05-11
EP3995382B1 true EP3995382B1 (en) 2024-04-17

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EP20207583.4A Active EP3995382B1 (en) 2020-11-09 2020-11-13 Pivot device for a clutch in particular of a railway vehicle

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US (1) US20220144323A1 (en)
EP (1) EP3995382B1 (en)
CN (1) CN114454912A (en)
CH (1) CH718041B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022119460A1 (en) 2022-08-03 2024-02-08 Voith Patent Gmbh Coupling shaft linkage for a central buffer coupling of a rail vehicle and central buffer coupling for a rail vehicle
SE2251273A1 (en) * 2022-11-01 2024-05-02 Dellner Couplers Ab Spacer arrangement for a mounting compartment of a rail vehicle and method for installing a draft gear and a spacer arrangement in a mounting compartment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823271B2 (en) * 1978-09-20 1983-05-13 株式会社日本製鋼所 coupler centering device
CN102343918B (en) * 2011-07-12 2016-08-17 中车青岛四方车辆研究所有限公司 Interior breaking type buffer device for rail vehicle
CN203996265U (en) * 2014-06-30 2014-12-10 常州南车铁马科技实业有限公司 A kind of used for rail vehicle coupler draft gear
CN104071175B (en) * 2014-06-30 2016-12-07 常州南车铁马科技实业有限公司 Coupler buffer for railway vehicle
CH713677B1 (en) 2017-04-06 2021-04-30 Faiveley Transp Schwab Ag Linkage device for a coupling of a rail vehicle.

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CH718041B1 (en) 2023-05-31
US20220144323A1 (en) 2022-05-12
CH718041A2 (en) 2022-05-13
CN114454912A (en) 2022-05-10
EP3995382A1 (en) 2022-05-11

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