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WO2024061686A1 - Accouplement de train automatique - Google Patents

Accouplement de train automatique Download PDF

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Publication number
WO2024061686A1
WO2024061686A1 PCT/EP2023/074963 EP2023074963W WO2024061686A1 WO 2024061686 A1 WO2024061686 A1 WO 2024061686A1 EP 2023074963 W EP2023074963 W EP 2023074963W WO 2024061686 A1 WO2024061686 A1 WO 2024061686A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
locking
automatic train
frog
actuator
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.)
Ceased
Application number
PCT/EP2023/074963
Other languages
German (de)
English (en)
Inventor
Dr. Kay Uwe Kolshorn
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to EP23769176.1A priority Critical patent/EP4590568A1/fr
Publication of WO2024061686A1 publication Critical patent/WO2024061686A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

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

Definitions

  • the present invention relates to an automatic train coupling, in particular for a freight wagon of a rail vehicle, according to the preamble of claim 1.
  • a generic train coupling is disclosed in DE 10 2021 132 991 A1.
  • Such an automatic train coupling has a coupling head which comprises a coupling lock with a locking mechanism, the coupling lock being designed as a rotary lock with a coupling eyelet and a frog, and the frog being rotatable about a main axis between a coupled position and an uncoupled position.
  • the coupling eyelet is rotatably connected to the frog with a first end and has a second free end which is intended to dip into a mouth of the frog of the opposite coupling head when the coupling head and an opposite coupling head are moved together, thereby rotating the frog from the uncoupled position or a coupling-ready position slightly offset from the uncoupled position in the direction of the coupled position into the coupled position about the main axis. Accordingly, the free end of the coupling eye of the opposite coupling head also enters a mouth of the frog of the generic coupling head in order to rotate the frog about the main axis from the uncoupled position or the ready-to-couple position into the coupled position.
  • the frogs are held by a spring accumulator and by the mutual interlocking of the frogs and the coupling eyes, as well as the pressure system between the end plates of the tension couplings.
  • the process of coupling and uncoupling is described, for example, in DE 10 2019 102 455 A1.
  • an uncoupling device with a motor is provided which is connected to the frog via a drive connection in order to rotate the frog from the coupled position into the uncoupled position .
  • the frog In the uncoupled position or after turning the frog slightly back into the coupling-ready position, the frog can be held by a latch rod connected to it, which locks into a locking position when the frog is moved into the uncoupled position or the coupling-ready position. Furthermore, a stamp is provided with which the locking of the pawl rod can be released when the opposite coupling head presses on the stamp when the coupling heads are moved together, so that the centerpiece is coupled into the coupled one, in particular by the spring accumulator and the pressure force of the coupling eyelet which dips into the mouth of the centerpiece Position is rotated and held there.
  • the coupling head or the heart of the generic automatic train coupling is held in the uncoupled position or in the coupling-ready position, which may also be provided in addition to this, i.e. ready for coupling again, in order to automatically couple again when two train couplings or two coupling heads come into contact again, this can automatic re-coupling when pushing rail vehicles, for example on the run-off hill, may be undesirable.
  • the cars of a train each car being referred to as a rail vehicle, are uncoupled in front of or on the hill and are then supposed to roll off in a targeted manner onto the intended directional track.
  • the respective frog with the uncoupling device can be in the uncoupled position or in the ready-to-couple position Position can be held, with the uncoupling device being operated continuously, so to speak, in order to maintain a so-called buffer position. It is therefore not possible to move the frog into the coupled position again as long as the buffer position mentioned, in which the uncoupling device is actively actuated, is not canceled. Even with the above-mentioned pawl rod in its locking position, the centerpiece can be held in the desired uncoupled or coupling-ready position.
  • the free end of the coupling eye of the train coupling in the coupled position pushes into the mouth of the heart of the train coupling in the uncoupled or ready-to-couple position and exerts a corresponding twisting force or impact on the frog in the uncoupled or ready-to-couple position in the sense of twisting from the uncoupled or ready-to-couple position into the coupled position.
  • the punch that releases the pawl rod from its locking position is actuated by the pull coupling in the coupled position when the coupling is in the uncoupled or ready-to-couple position
  • the pawl rod can no longer prevent the center piece from twisting out of the uncoupled or ready-to-couple position secure the coupled position.
  • a comparatively large impact force is therefore transmitted to the uncoupling device, which is in driving connection with the centerpiece and, as a result, the uncoupling device can be damaged or at least subject to excessive wear.
  • the present invention is based on the object of improving an automatic train coupling of the design shown in such a way that the transmission of such an impact force to the uncoupling device is avoided even if the automatic train coupling, which is in the uncoupled or coupling-ready position, is on a counter-equivalent one Hits the train coupling, which is in the coupled position.
  • An automatic train coupling according to the invention has a coupling head which includes a coupling lock with a lock.
  • the dome lock is designed as a twist lock with a dome eyelet and a center piece.
  • the centerpiece can be rotated about a main axis between a coupled position and a decoupled position.
  • the dome eyelet is connected to the center piece with a first end that can be rotated about a dome eyelet axis and has a second free end.
  • the second free end has, for example, a latch in order to be locked with the heart of a matching coupling head.
  • the uncoupled position is also a so-called coupling-ready position.
  • a coupling-ready position of the coupling head or the frog is provided in addition to the coupled position and the uncoupled position. The center piece can therefore be rotated around the main axis into the coupled, uncoupled and coupling-ready position.
  • the position ready for coupling is a rotational position of the frog between the coupled position and the uncoupled position and is in particular closer, usually significantly closer, to the uncoupled position than to the coupled position.
  • the centerpiece is rotated from the uncoupled position by a few degrees back in the direction of the coupled position about the main axis in order to reach the position ready for coupling and is locked there in the position ready for coupling, as will be explained below, for example with a pawl rod.
  • the centerpiece has a mouth which is arranged to receive the second end of a coupling eyelet of the identical coupling head.
  • the opposite coupling head can be designed to be identical to the coupling head according to the invention.
  • other embodiments can also be considered which are compatible with the present coupling head according to the invention and are therefore able to engage with a coupling eyelet in the mouth of the center piece and to lockingly receive the coupling eyelet of the coupling head according to the invention.
  • the automatic train coupling according to the invention has a decoupling device which comprises a motor which is connected to the frog via a drive connection in order to rotate the frog from the coupled position into the uncoupled position and, if necessary, in particular back into the position ready for coupling.
  • the decoupling device can in particular be designed as described in DE 10 2021 132 991 A1.
  • the locking of the dome lock of the coupling head of the automatic train coupling according to the invention is designed to be released by moving the opposite coupling head to the coupling head in order to rotate the center piece from the uncoupled position and/or the coupling-ready position about the main axis into the coupled position.
  • the locking of the dome closure comprises a stamp and a pawl rod, the pawl rod being at least indirectly connected to the centerpiece and having a locking position that can be released by actuating the stamp, in which the pawl rod prevents the centerpiece from twisting out of the uncoupled position and / or the position ready for coupling the coupled position is blocked, whereby the stamp can be actuated by moving the opposite coupling head to the coupling head in order to release the locking position of the pawl rod.
  • the automatic train coupling or its coupling head comprises an optionally operable locking mechanism, which can be activated in the uncoupled position and/or the coupling-ready position of the frog, and can therefore be selectively actuated in order to prevent the frog from rotating when the locking of the dome lock is released from the uncoupled position and/or or from the ready-to-couple position to the coupled position.
  • a locking mechanism is therefore provided in addition to the locking of the dome closure, for example with the pawl rod.
  • the invention makes it possible to actively block the automatic re-engagement of the train coupling in the uncoupled position or the so-called coupling-ready position by mechanically blocking the otherwise occurring rotation of the frog after it has been released from its locking position, for example by releasing the pawl rod, by specifically actuating the locking mechanism.
  • the fact that the rotation of the centerpiece is mechanically blocked means that the uncoupling device, in particular its motor, is subjected to shock loads. prevented, even if the pawl rod was released from its locking position.
  • the locking mechanism preferably has an actuator and a locking bar, the locking bar being moved by the actuator, in particular against the force of a spring element, for example a tension spring or compression spring, between a locking position in which the actuator blocks a rotation of the center piece when the locking of the dome closure is released, and a release position in which the actuator releases rotation of the center piece when the locking of the dome closure is released, can be moved.
  • a spring element for example a tension spring or compression spring
  • the actuator has an electromagnetic drive.
  • Such a locking mechanism can then be particularly easily retrofitted to the coupling head and only minor modifications to existing coupling heads are necessary.
  • such an electromagnetically driven actuator can also work without a spring element.
  • the actuator has an electric, pneumatic or hydraulic drive.
  • Such drives offer reliable operation and the actuator can be easily integrated into the coupling head.
  • the actuator is driven by the motor of the uncoupling device.
  • the uncoupling device has in particular a rotary member which can be rotated with the motor about an axis of rotation, in particular in the form of a rotary lever, which is connected to the centerpiece for rotating the centerpiece from the coupled position into the uncoupled position and, if necessary, also the different position ready for coupling.
  • the locking bar can engage the uncoupling device, in particular the rotary member or the rotary lever, in order to thereby indirectly rotate the frog, as desired, from the uncoupled position and/or the coupling-ready position into the coupled position and a force transmission from unfavorable impact forces to sensitive ones Components of the decoupling device, such as the engine, should be avoided. Such pressure surges can then be absorbed by the locking bar.
  • the locking bar engages the center piece or an arm rigidly connected to the center piece in the direction of rotation about the main axis. This can also prevent the undesired transmission of impact force to sensitive components of the uncoupling device because the locking bar dissipates such impact force accordingly.
  • the uncoupling device preferably has a driver driven by the motor, which rotates the rotary member driven by the motor.
  • a rotational play can then be provided between the driver and the rotary member, so that in the decoupled position of the centerpiece the driver can be moved relative to the rotary member, in particular about the axis of rotation about which the rotatable rotary member can be rotated.
  • the driver can then be in driving connection with the actuator in order to actuate it within the mentioned rotational play to move the locking bolt into the locking position without the rotary member being rotated.
  • the driver is preferably designed as a rotating element to which the actuator is connected in the form of an actuating arm and/or through which the actuator is rotated in the form of an actuating arm.
  • Such an actuating arm can then, for example, engage the locking bar by rotating it and move, tilt or twist it from the release position into the locking position.
  • the actuating arm can have a plunger shape, a hook shape or another shape, for example a rotary lever shape.
  • a rail vehicle according to the invention has an automatic train coupling according to the invention of the design shown here.
  • Figure 1a shows an automatic train coupling in the coupled position
  • Figure 1b shows the automatic train coupling from Figure 1a in the uncoupled position
  • Figure 1c shows the automatic train coupling from Figures 1a, 1b in the coupling-ready position
  • Figure 2 shows the automatic train coupling with a first embodiment of a locking mechanism in the locked position
  • Figure 3a shows the automatic train coupling with a second embodiment of the locking mechanism in the locked position
  • Figure 3b shows the automatic pull coupling from Figure 3a with the locking mechanism in the release position
  • Figure 4a shows the automatic train coupling with a third embodiment of the locking mechanism in the locked position
  • Figure 4b shows the automatic pull coupling from Figure 4a with the locking mechanism in the release position
  • Figure 5a shows the automatic train coupling with a fourth embodiment of a locking mechanism in the release position
  • Figure 5b shows the automatic pull coupling from Figure 5a with the locking mechanism in the locked position
  • Figure 6a shows the automatic train coupling with a fifth embodiment of a locking mechanism in the release position
  • Figure 6b shows the automatic pull coupling from Figure 6a with the locking mechanism in the locked position
  • Figure 7a shows the automatic train coupling with a sixth embodiment of a locking mechanism in the release position
  • Figure 7b shows the automatic train coupling from Figure 7a with the locking mechanism in the locked position.
  • the figures show exemplary embodiments of automatic train couplings, the coupling head 1 of which each includes a lockable coupling lock 2 and an uncoupling device 8, as well as a possible exemplary embodiment of an optionally operable locking mechanism 10, which here engages the coupling lock 2 or the uncoupling device 8 in order to carry out the transmission to prevent impact forces in the ready-to-coupling state on sensitive components of the uncoupling device 8.
  • the corresponding components are each designated with the corresponding reference numerals.
  • FIG. 1 shows the coupling head 1 of the automatic train coupling with the center piece 4, which can be rotated about the main axis 5, in three different positions, these positions differing from one another due to the rotational position of the center piece 4 about the main axis 5.
  • the center piece 4 assumes the coupled position, in Figure 1b, the uncoupled position and in Figure 1c, a position ready for coupling, which here is at a comparatively small angle in the direction of the uncoupled position coupled position is twisted.
  • this is not mandatory.
  • the coupling closure 2 comprises, in addition to the core 4, a coupling eyelet 3, which is connected to the core 4 with a first end 3.1 so as to be rotatable about a coupling eyelet axis 6 and has a second free end 3.2 which is intended to be inserted into the mouth 7 of the core 4 of an opposite coupling head 1.
  • the core 4 of the coupling head 1 shown also has a corresponding mouth 7 which is arranged to receive a second end 3.2 of a coupling eyelet 3 of an opposite coupling head 1.
  • the mouth 7 is arranged comparatively far inside the coupling head 1, i.e. behind the front plate 22.
  • the latch (not shown) is hooked into the mouth 7 at the second end 3.2 of a coupling eyelet 3 (not shown) of an opposite coupling head 1.
  • the frog 4 is rotated around the main axis
  • the rotation of the centerpiece 4 is effected with the uncoupling device 8, which comprises a motor 9 which is connected to the centerpiece 4 via a drive connection, for example an angular gear.
  • the decoupling device 8 comprises a rotary member in the form of a rotary lever 16 which can be rotated with the motor 9 about an axis of rotation 15 and which is connected to the center piece 4 in order to rotate it.
  • the rotary lever 16 can be connected directly to the centerpiece 4, or, as here shown as an example, via at least one intermediate piece 17, which is connected in an articulated manner to the rotary lever 16 and to the center piece 4.
  • a driver 19 is provided, which is rotated by the motor 9 about the axis of rotation 15.
  • the driver 19 engages with at least one stop surface on the rotary lever 16 in order to pull the center piece 4, here for example via the intermediate piece 17, in the tangential direction to the main axis 5, so that the center piece 4 is in the uncoupled position, which is shown in Figure 1 b shown is twisted.
  • the motor 9 can then move the driver 19 back into the starting position again, essentially without force, so that the driver 19 does not hinder a later rotation of the center piece 4 into the coupling position when the opposite coupling head 1 is moved to the end plate 22.
  • the rotary member here the rotary lever 16 also rotates back together with the center piece 4 until the center piece 4 is in the coupling-ready position, in which the pawl rod 12 connected to the center piece 4 engages in its locking position .
  • the center piece 4 is turned back by the spring accumulator 23, which is connected to the center piece 4.
  • the driver 19 can be rotated further backwards, that is to say in the direction in which it is rotated when the frog 4 is moved from the uncoupled position into the ready-to-couple position, without the rotary member, here the rotary lever 16 takes with it. Accordingly, a rotational play is provided between the driver 19 and the rotary member, which can be used to activate an optionally operable locking mechanism 10 with the driver 19. This will be shown below using the exemplary embodiments according to FIGS. 5 to 7.
  • the motor 9 can therefore also be used to operate the locking mechanism 10.
  • the locking mechanism 10 has its own electromagnetic drive.
  • the locking mechanism 10 includes an actuator 13, here electromagnetic actuator 13, and a locking bar 14, which is displaced by the actuator 13 between a locking position and a release position.
  • the locking bar 14 engages behind the rotary member, here in the form of the rotary lever 16, in such a way that its rotation about the axis of rotation 15 is blocked when the centerpiece 4 moves it out of the ready-to-couple position in the sense of a rotation about the main axis 5 Position pulls into the coupled position, here via the intermediate piece 17.
  • the locking mechanism 10 has a spring-loaded locking bolt 14.
  • the locking bar 14 is supported against the force of a spring element 21.
  • the locking bar 14 is supported on the rotary member of the uncoupling device 8, here on an extension of the rotary lever 16 which extends beyond the rotary axis 15.
  • another support could also be provided, for example separately from the rotary lever 16.
  • the pivoting of the locking bar 14 between the locking position and the release position is effected with an actuator 13, which in turn can be designed as an electromagnetic actuator or as an actuator operated in another way.
  • the actuator 13 pivots the locking bar 14 laterally into the rotation range of the rotary lever 16 in order to block the rotary lever 16 or its extension against rotation.
  • the locking bar 14 of the locking mechanism 10 engages an arm 18 which is connected to the centerpiece 4 in a rotationally fixed manner about the main axis 5 in order to prevent the undesired rotation of the centerpiece 4 from the coupling-ready position into the in the buffer position of the train coupling to mechanically block the coupled position or the transmission of a corresponding pressure surge to the uncoupling device 8.
  • a spring element 21 is provided, which dampens rotation of the arm 18 and thus deflection of the locking bolt 14.
  • the locking bar 14 is pivoted into the rotation range of the arm 18 in turn with an actuator 13, which is actuated, for example, electromagnetically or otherwise.
  • the locking bolt 14 blocks rotation of the frog 4 in the direction of the coupled position and thus avoids the transmission of the pressure surge to the uncoupling device 8.
  • the motor 9 is used to move the locking bolt 14 from the release position into the locking position against the force of the spring element 21.
  • the driver 19 when it is rotated within the illustrated rotational play without driving the rotary lever 16, engages an actuating arm 20, which moves the locking bolt 14 from its release position into its locking position, the locking bolt 14 in turn, as in the embodiment according to Figure 2, the rotary lever 16 is blocked so that it cannot be pulled from the center piece 4 over the intermediate piece 17 or another connection and thereby transmits a pressure surge to the uncoupling device 8 in the buffer position.
  • FIG. 5a shows the release position of the locking bar 14, into which the locking bar 14 is pulled by the force of the spring element 21, which also moves the actuating arm 20 into a corresponding release position when the actuating arm 20 is not subjected to force by the driver.
  • Figure 5b is Correspondingly, the force-loaded position of the actuating arm 20 is shown by the driver 19, in which in the buffer position the actuating arm 20 has moved the locking bolt into the locking position.
  • the actuating arm 20 can be viewed as an actuator 13 of the locking mechanism 10.
  • the actuator 19 also engages at least indirectly on the locking bar 14 via an actuating arm 20 in accordance with the design in FIG 6b).
  • the actuating arm 20 is therefore the actuator 13.
  • the locking mechanism 10 has a damping element 25, here in the form of a compression spring, which, as in the embodiment according to Figures 3 and 4, the spring element 21 pressure shocks and here the rotational movements of the actuating arm caused by the pressure shocks 20 dampens because the locking bar 14 is resiliently supported on the damping element 25.
  • the locking bar 14 in turn engages on the rotary member, advantageously on an extension of the rotary lever 16.
  • the locking bar 14 again blocks an arm 18 which is connected to the center piece 4 in a torsionally rigid manner.
  • a damping element 25 is advantageously assigned to the locking bar 14 in order to dampen pressure surges that act on the center piece 4 via the mouth 7.
  • the locking bar 14 with the actuating arm 20, which represents the actuator 13 is advantageously moved from its locking position into its release position against the force of the spring element 21.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un accouplement de train automatique avec une tête d'accouplement qui comprend un verrou d'accouplement avec un loquet, le verrou d'accouplement étant configuré sous la forme d'un verrou rotatif avec un œillet d'accouplement et une pièce centrale, et la pièce centrale pouvant tourner autour d'un axe principal entre une position accouplée et une position découplée. L'œillet d'accouplement présente une première extrémité qui est reliée de manière rotative à la pièce centrale autour d'un axe d'œillet d'accouplement, et une seconde extrémité libre, et la pièce centrale comprend des mâchoires qui sont conçues pour recevoir la seconde extrémité d'un œillet d'accouplement d'une tête d'accouplement homologue. L'accouplement de train automatique comprend un dispositif de découplage qui comprend un moteur qui est relié à la pièce centrale par l'intermédiaire d'une liaison d'entraînement afin de faire tourner la pièce centrale hors de la position accouplée et dans la position découplée. Le loquet du verrou d'accouplement est conçu pour être libéré par déplacement de la tête d'accouplement homologue contre la tête d'accouplement afin de faire tourner la pièce centrale autour de l'axe principal hors de la position découplée ou d'une position prête à l'accouplement, qui est décalée par rapport à la position découplée dans la direction de la position accouplée, et dans la position accouplée. L'accouplement de train automatique selon l'invention est caractérisé par un mécanisme de verrouillage qui peut être actionné de manière sélective, ledit mécanisme de verrouillage pouvant être activé dans la position découplée ou accouplée de la pièce centrale afin de bloquer une rotation de la pièce centrale hors de la position découplée ou de la position prête à l'accouplement et dans la position accouplée lorsque le loquet du verrou d'accouplement est libéré. Figure 1a
PCT/EP2023/074963 2022-09-19 2023-09-12 Accouplement de train automatique Ceased WO2024061686A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23769176.1A EP4590568A1 (fr) 2022-09-19 2023-09-12 Accouplement de train automatique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022123887.3A DE102022123887A1 (de) 2022-09-19 2022-09-19 Automatische Zugkupplung
DE102022123887.3 2022-09-19

Publications (1)

Publication Number Publication Date
WO2024061686A1 true WO2024061686A1 (fr) 2024-03-28

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PCT/EP2023/074963 Ceased WO2024061686A1 (fr) 2022-09-19 2023-09-12 Accouplement de train automatique

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EP (1) EP4590568A1 (fr)
DE (1) DE102022123887A1 (fr)
WO (1) WO2024061686A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019102455A1 (de) 2019-01-31 2020-08-06 Voith Patent Gmbh Automatische Zugkupplung
DE102021132991A1 (de) 2020-12-15 2022-06-15 Voith Patent Gmbh Automatische Zugkupplung und Verfahren zum Entkuppeln einer automatischen Zugkupplung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2150757A1 (en) * 2021-06-11 2022-12-12 Dellner Couplers Ab Coupler comprising a blocking mechanism for preventing coupling of the mechanical coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019102455A1 (de) 2019-01-31 2020-08-06 Voith Patent Gmbh Automatische Zugkupplung
DE102021132991A1 (de) 2020-12-15 2022-06-15 Voith Patent Gmbh Automatische Zugkupplung und Verfahren zum Entkuppeln einer automatischen Zugkupplung

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DE102022123887A1 (de) 2024-03-21
EP4590568A1 (fr) 2025-07-30

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