EP3446944B1 - Attelage pour un véhicule sur rails - Google Patents

Attelage pour un véhicule sur rails Download PDF

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Publication number
EP3446944B1
EP3446944B1 EP18184729.4A EP18184729A EP3446944B1 EP 3446944 B1 EP3446944 B1 EP 3446944B1 EP 18184729 A EP18184729 A EP 18184729A EP 3446944 B1 EP3446944 B1 EP 3446944B1
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EP
European Patent Office
Prior art keywords
piston
coupling
cylinder
piston rod
head
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.)
Active
Application number
EP18184729.4A
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German (de)
English (en)
Other versions
EP3446944A1 (fr
Inventor
Mike Fassbind
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
Application filed by Faiveley Transport Schwab AG filed Critical Faiveley Transport Schwab AG
Publication of EP3446944A1 publication Critical patent/EP3446944A1/fr
Application granted granted Critical
Publication of EP3446944B1 publication Critical patent/EP3446944B1/fr
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Classifications

    • 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
    • B61G7/08—Adjustable coupling heads
    • 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 coupling for a rail vehicle according to the preamble of claim 1.
  • Couplings of this type are, for example, in the EP 2 322 403 B1 revealed. As is known, they are used on passenger or freight trains and enable the coupling process to be carried out automatically even on winding routes. In the uncoupled state in general or in such a train component located in a curve It can result in the coupling head remaining in a swiveled-out position after the coupling process, so that if it is coupled with a different train composition, it may be necessary to pivot it back together with the pulling device before coupling.
  • centering can be switched on or off as required.
  • Such systems are generally held in the central position by means of one or more pneumatic cylinders by means of compressed air or are guided back into this. If necessary, eg when the clutch catch area is exhausted, the centering can be switched off by venting the cylinder. Then the coupling can be manually aligned with the counter coupling. It can also be used for coupling in bends or deflections where the couplings are outside the normal catch range.
  • the object of the invention is to improve a centering device of a clutch in such a way that it enables perfect centering and other functionalities in operation or for manual manipulations, and is built in a very space-saving manner.
  • the centering device comprises at least one telescopically controllable piston / cylinder unit with a master cylinder in which a master piston with a piston rod and a slave piston with a piston rod are guided longitudinally coaxially to one another. It is therefore only necessary to pressurize a medium on the main piston to achieve the central position of the coupling head in a direction running towards the secondary piston.
  • the at least one telescopically controllable piston / cylinder unit can be switched on or off very advantageously, so that the coupling can be pivoted almost without force when coupled or for manipulation. And it is also possible to swing the coupling away during maintenance work.
  • this piston / cylinder unit is constructed in such a way that the master cylinder contains the master piston for actuating its piston rod and the secondary piston with the other piston rod opposite it coaxially. This means that only one chamber of the piston / cylinder unit has to be pressurized with compressed air.
  • the centering device prefferably provides two piston / cylinder units arranged laterally approximately symmetrically or parallel to its central axis. As a result, the actuating force exerted by the centering device can be doubled.
  • the piston rod of the master cylinder is advantageously articulated on the vehicle body, while the piston rod of the secondary piston is articulated laterally offset from its central axis on a side flange of the traction device.
  • the centering device with the at least one piston / cylinder unit is advantageously designed and controllable in such a way that the coupling head with the pulling device can be pivoted into a certain deflected position in the uncoupled state.
  • the multi-position cylinder can be adjusted from a central position as a starting position into a fully retracted or a fully extended position or an intermediate position.
  • the coupling process can always be carried out starting from one and the same favorable position of the coupling heads, regardless of the course of the route.
  • Coupling half shown is part of an automatic coupling for rail vehicles, which can be used both on straight and on curved routes. It basically consists of a coupling head 1 and a traction device 2 connected to it in the form of a hydraulic cylinder, which is arranged as a connecting part to the vehicle and with which the tensile or compressive forces occurring during driving operation are introduced into the vehicle body 6 of the vehicle.
  • the coupling head 1 and the traction device 2 are usually in the center arranged between two buffers, which in turn are mounted on a front part of the vehicle body 6.
  • the coupling head 1 together with the pulling device 2 is pivotally mounted to the left and right about the central axis of a pivot pin 7 mounted in the vehicle body 6.
  • the coupling is provided with a centering device 8, which in the uncoupled state holds the coupling head 1 in a neutral central position or automatically returns it to the neutral central position after the coupling has been released.
  • This centering device 8 essentially consists of two identically designed piston / cylinder units 9, 10 which are telescopically compressible or extendable and are arranged laterally from the coupling head 1 together with the pulling device 2 symmetrically and approximately or axially parallel or at a suitable angle to the central axis thereof.
  • the preferably pneumatic piston / cylinder units 9, 10 are optionally articulated at their ends 11, 12 or 13, 14 on the one hand on the vehicle body 6 or a support of the clutch and on the other hand on a side flange 15 of the traction device 2.
  • the centering device 8 comprises at least one telescopically controllable piston / cylinder unit 9, 10 with a master cylinder 16 in which a master piston 18 with a piston rod 19 and a secondary piston 20 with a piston rod 17 are guided coaxially to one another.
  • a pressurization of a medium on the main piston 18 to achieve the central position of the coupling head 1 is only necessary in a direction running against the secondary piston 20.
  • a pressure connection 26 is provided on the cylinder head 21 of the master cylinder 16 and, regardless of whether the piston / cylinder unit 9, 10 is in the retracted or opposite position in the extended position or vice versa after uncoupling, it becomes when the pressure is switched on according to the pressure connection 26 in this middle position Fig. 4 brought.
  • the main piston 18 is either for the collision from an extended position Fig. 5 pressed against the rod head 31 and thus against the piston rod 19 until it strikes the secondary piston 20 or the master cylinder 16, or it is pressed against one another from a compressed position Fig. 3 pressed against the secondary piston 20 until the latter also strikes the master cylinder 16.
  • controllable piston / cylinder units 9, 10 can advantageously be switched on or off so that the coupling can be pivoted almost without force when coupled or for manipulation.
  • the master cylinder 16 is closed at the end facing away from the piston rod 17 with a removable cylinder head 21, which has a through bore 22 for gas-tight guiding of the piston rod 19 and is therefore provided with a seal 23, a guide band 24 and a scraper 25.
  • the main piston 18 has guide bands 29 and seals 30 for the piston rod 19 which can be moved coaxially therein.
  • the latter is provided with a disc-shaped rod head 31 designed as a driver. Its diameter is dimensioned such that it can be displaced in the piston rod 17 in the cavity 17 ′ formed.
  • a vent hole 32, a guide band 33 and a wiper 34 In the master cylinder 16 there are also a vent hole 32, a guide band 33 and a wiper 34.
  • a sealing ring 35 is also installed in the secondary piston 20. This piston rod 17 and the secondary piston 20 could also be made in one piece.
  • this pressure connection 26 is also provided with compressed air to act on the main piston 18, and in addition, an external displaceable guide rod (not shown in more detail) can be provided to prevent rotation of the cylinder 16.
  • this master piston 18 is guided longitudinally in the master cylinder 16, by means of which the one piston rod 19 is freely displaceable at least in the pressure direction.
  • This second piston rod 17, coaxial with the main piston 18 and with the secondary piston 20 connected to it, is longitudinally sealed in the master cylinder 16.
  • this centering device 8 can be controlled with the at least one piston / cylinder unit 9, 10 such that the respective coupling half can be actively pivoted into a certain deflected position in the uncoupled state.
  • the piston / cylinder unit 9, 10 which is designed as a multi-position cylinder, is therefore designed in such a way that it corresponds to the starting position from the central position Fig. 4 in the fully extended position according to Fig. 5 or in the fully retracted position according to Fig. 3 or can be adjusted to desired intermediate positions.
  • the side flange 15 experiences a different pivoting in or out, which it transmits to the pulling device 2 together with the coupling head 1.
  • a pressure connection 16 ′′ acting on the secondary piston 20 with the piston rod 17 and on the other hand a pressure connection 19 ′ acting on the rod head 31 in the cavity 17 ′ of the piston rod 17 for supplying a medium can be brought about by switching on, as is the case here in Fig. 5 is indicated. It becomes the piston rod 17 pushed into the master cylinder 16 up to the master piston 18 and the rod head 31 with the piston rod 19 connected to it moved into the cavity 17 'of the piston rod 17.
  • a pressure connection 17 "of a medium acting on the rod head 31 of the piston rod 19 of a medium must be switched into the piston rod 17 outside the master cylinder 16, so that the rod head 31 with the piston rod 19 and also the master cylinder 16 extend out of the piston rod 17.
  • controller 36 For the automatic switching of the piston / cylinder unit 9, 10 into the functionally appropriate working position, they are equipped with a preferably programmable controller 36.
  • the controller 36 also serves to switch the centering device 8 on and off, the latter being controlled in such a way that it enables the clutch to be deflected without force in the coupled state during driving operation.
  • the centering device according to the invention is characterized by a simple and space-saving construction and also a reliable and simple mode of operation, because it is basically only necessary to apply compressed air to a single chamber of the piston / cylinder unit 9, 10.
  • the coupling can be swiveled automatically into a deflected position, left or right.
  • Another advantage of the centering device according to the invention is that it can be switched on or off as required.
  • the centering device 8 is also functional with only one of the piston / cylinder units 9 or 10.
  • the variant with two cylinders working in opposite directions has the advantage, however, that the actuating force generated by the centering device 8 can be doubled and a force for the centering is generated from both sides.

Landscapes

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

Claims (11)

  1. Attelage d'un véhicule ferroviaire, comprenant deux moitiés d'attelage, qui ont chacune une tête (1) d'attelage et un dispositif (2) de traction qui y est relié, la tête (1) d'attelage, ensemble avec le dispositif (2) de traction, étant montée pivotante autour d'un axe médian d'un axe (7) d'articulation monté dans la caisse (6) du véhicule, dans lequel les deux moitiés de l'attelage sont pourvues chacune d'un dispositif (8) de centrage qui, dans l'état désattelé, maintient la tête (1) d'attelage ensemble avec le dispositif (2) de traction dans une position médiane ou la ramène après désattelage automatiquement dans cette position médiane, dans laquelle cette tête (1) d'attelage est dirigée à peu près suivant la direction longitudinale du véhicule ferroviaire, caractérisé en ce que
    le dispositif (8) de centrage comprend au moins une unité (9, 10) pistons/cylindre réglable télescopiquement, comprenant un cylindre (16) principal, dans lequel un piston (18) principal ayant une tige (19) de piston et un piston (20) auxiliaire ayant une tige (17) de piston sont guidés longitudinalement coaxialement l'un par rapport à l'autre, une alimentation en pression d'un fluide sur le piston (18) principal pour atteindre la position médiane de la tête (1) de l'attelage n'ayant lieu que dans un sens s'étendant vers le piston (20) auxiliaire.
  2. Attelage suivant la revendication 1, caractérisé en ce que, dans la tête (21) du cylindre (16) principal, est prévu un raccord (26) de pression pour l'alimentation du piston (18) principal dans la chambre (16') du cylindre, de préférence en air comprimé comme fluide.
  3. Attelage suivant la revendication 1 ou 2, caractérisé en ce que
    les extrémités en saillie du cylindre (16) principal des tiges (17, 19) de piston sont articulées chacune de manière décalée latéralement de leur axe médian d'une part à une bride (15) latérale du dispositif (2) de traction et d'autre part à la caisse du véhicule ou au support de l'attelage (6).
  4. Attelage suivant l'une des revendications 1 à 3, caractérisé en ce que
    la tige (19) de piston s'étend dans le piston (18) principal guidé longitudinalement de manière étanche dans le cylindre (16) principal et peut y coulisser librement avec étanchéité par le fait que la tige (7) de piston opposée coaxialement est reliée au piston (20) auxiliaire, dans lequel à la tige (19) de piston est associée une tête (31) de tige à l'intérieur du cylindre (16) principal, par laquelle la tige (19) du piston (18) principal est entraînée dans celui-ci dans la direction s'étendant vers le piston (20) auxiliaire.
  5. Attelage suivant l'une des revendications 1 à 4, caractérisé en ce que,
    dans la position entrée de l'unité (9, 10) pistons/cylindre, les tiges (17) de piston sont poussées dans le cylindre (16) principal et ainsi l'une des tiges (19) de piston dans un espace (17') creux prévu dans la tige (17) de piston opposée ou inversement.
  6. Attelage suivant l'une des revendications 1 à 5, caractérisé en ce que
    l'unité (9 ou 10) de pistons/cylindre est pourvue d'une commande (36) de préférence programmable pour mettre automatiquement le cylindre dans la position de travail propre à fonctionner.
  7. Attelage suivant la revendication 6, caractérisé en ce que la commande (36) sert également à l'enclenchement et au désenclenchement du dispositif (8) de centrage, celui-ci rendant possible pendant la marche une excursion sans force de l'attelage à l'état attelé.
  8. Attelage suivant l'une des revendications 1 à 7, caractérisé en ce que
    le dispositif (8) de centrage avec la au moins une unité (9, 10) de pistons/cylindre est constituée et peut être commandée de manière à ce que la tête (1) de l'attelage puisse, par le dispositif (2) de traction, à l'état dételé, pivoter dans une position déviée déterminée.
  9. Attelage suivant la revendication 8, caractérisé en ce que pour la séparation télescopique de l'unité (9, 10) de pistons/cylindre, il est prévu pour le fluide un raccord (17") de pression agissant sur la tête (31) de la tige (19) de piston et se trouvant à l'extérieur du cylindre (16) principal, fluide qui peut entrer dans l'espace (17') creux de la tige (17) du piston et dans la chambre (16') du cylindre.
  10. Attelage suivant la revendication 8 ou 9, caractérisé en ce que,
    pour la séparation télescopique de l'unité (9, 10) de pistons/cylindre, peuvent être mis un raccord (16") de pression d'un fluide sur le piston (20) auxiliaire agissant par la tige (17) de piston sur le piston (18) principal, ainsi qu'un raccord (19') de pression agissant, respectivement, sur une tête (31) de tige dans l'espace (17') creux de la tige (17) de piston.
  11. Attelage suivant l'une des revendications 1 à 10, caractérisé en ce que
    le dispositif (8) de centrage est composé de deux unités (9, 10) de pistons/cylindre montées latéralement à la tête (1) de l'attelage à peu près symétriquement par rapport à son axe médian.
EP18184729.4A 2017-08-23 2018-07-20 Attelage pour un véhicule sur rails Active EP3446944B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01048/17A CH714078B1 (de) 2017-08-23 2017-08-23 Kupplung für ein Schienenfahrzeug.

Publications (2)

Publication Number Publication Date
EP3446944A1 EP3446944A1 (fr) 2019-02-27
EP3446944B1 true EP3446944B1 (fr) 2020-07-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18184729.4A Active EP3446944B1 (fr) 2017-08-23 2018-07-20 Attelage pour un véhicule sur rails

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EP (1) EP3446944B1 (fr)
CH (1) CH714078B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114889668B (zh) * 2022-06-28 2023-08-01 中车制动***有限公司 浮动式电气车钩推送机构及具有其的车钩

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB623103A (en) * 1944-07-11 1949-05-12 Nat Malleable & Steel Castings Improvements in or relating to a car coupler
NL120712C (fr) * 1961-03-30
CH702215A2 (de) * 2009-11-13 2011-05-13 Schwab Verkehrstechnik Ag Automatische Kupplung für Schienenfahrzeuge mit Seitenpuffern.
JP5650089B2 (ja) * 2011-10-18 2015-01-07 株式会社日本製鋼所 鉄道車両用連結装置
KR20150132243A (ko) * 2013-03-22 2015-11-25 웹텍 홀딩 코포레이션 자동화된 커플러 포지셔닝 디바이스

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Also Published As

Publication number Publication date
CH714078B1 (de) 2021-08-16
CH714078A2 (de) 2019-02-28
EP3446944A1 (fr) 2019-02-27

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