EP3934961A1 - Abstütz- und zentriervorrichtung für einen kupplungsarm einer automatischen zugkupplung - Google Patents
Abstütz- und zentriervorrichtung für einen kupplungsarm einer automatischen zugkupplungInfo
- Publication number
- EP3934961A1 EP3934961A1 EP20710079.3A EP20710079A EP3934961A1 EP 3934961 A1 EP3934961 A1 EP 3934961A1 EP 20710079 A EP20710079 A EP 20710079A EP 3934961 A1 EP3934961 A1 EP 3934961A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- centering device
- supporting
- coupling
- coupling arm
- 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.)
- Pending
Links
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
Definitions
- the present invention relates to a support and centering device for a coupling arm of an automatic train coupling, in particular a central buffer coupling, and an automatic train coupling with such a support and centering device.
- Conventional support and centering devices for the coupling arm of an automatic towing coupling of the Willison / SA-3 type have a rigid or spring-mounted coupling support beam which is suspended from a console with a pendulum suspension.
- a support and centering device with a spring-mounted coupling support beam is shown in FIG.
- This support and centering device has a console 2 on which a solid crossbeam 9 is suspended in a pendulum manner via two pendulums 31, so that the crossbeam 9 can perform a lateral pendulum movement transversely to the longitudinal axis 19 of the coupling arm not shown in detail here.
- the traverse 9 in turn supports the solid clutch support beam 30 via compression springs 9.
- the components are made as comparatively heavy cast components, so that the weight forces together with the pendulum suspension cause the coupling arm to return to the center.
- FIG. 2 shows a basic sketch of the generic supporting and centering device from FIG. 1. It can be seen again that the traverse 9, which is suspended from the brackets 2 with the two pendulums 31, resiliently bears the coupling support beam 30 via compression springs 11 and 12 and also forms a lateral guide. The coupling arm 20 is in turn held laterally by the coupling support beam 30. In this illustration it is particularly clear that the weight forces cause the center reset.
- a device for manual actuation of the units is provided in order to bring the coupling rod manually into an off-center position.
- the individual devices are each attached separately to the medium-wave structure here, as is the device for manual placement in an off-center position.
- This requires a corresponding installation space and the provision of appropriate fastening options on the threshold structure, which is why simple retrofitting is not readily possible.
- the centering device is characterized by a considerable variety of parts. Due to the separation of the support and the central position, this version is not easily applicable for the UIC area for use on existing vehicles, since the effort for processing the interfaces is not economically feasible.
- the present invention is based on the object of specifying a support and centering device for a coupling arm of an automatic pulling coupling, wherein the supporting and centering device can be made lighter and more cost-effective and operation is made easier when the coupling arm is deflected by hand. Furthermore, the supporting and centering device should be characterized by a smaller space requirement and it should also be easy to retrofit in existing vehicles.
- the object according to the invention is achieved by a supporting and centering device having the features of claim 1.
- Both functions - support and centering - are implemented with a modular construction unit, which requires only a small installation space in the longitudinal direction in relation to the installation position opposite the coupling and can be easily retrofitted. Retrofitting can also be done in existing vehicles with little effort.
- advantageous and particularly expedient configurations and an automatic pull coupling with a support and centering device according to the invention are specified.
- a support and centering device for a coupling arm of an automatic train coupling, in particular a central buffer coupling, has a resiliently supported support for the coupling arm and a stationary console for connecting the support and centering device to a carriage or rail vehicle.
- the support is at least indirectly suspended resiliently on the stationary console.
- a center reset is provided for the coupling arm, but this works with spring force instead of weight forces, in particular exclusively with spring force.
- the center reset has at least two reset levers opposite one another in the horizontal direction, each with a lateral contact surface, which enclose a receiving space for the coupling arm above the support between them, with at least one spring accumulator being provided which acts on the reset lever with a spring force that allows the counteracts lateral contact surfaces.
- the console also has a cross member extending in the horizontal direction transversely to the coupling arm, that is to say transversely to the longitudinal axis of the coupling arm, which carries the support with its spring support and to which the reset levers are articulated.
- a pre-deflection that is to say a device for holding the coupling arm in the position deflected from the horizontal central position
- the coupling arm can preferably be operated solely by frictional forces or static friction forces that act between the support and the coupling arm are held in the manually deflected position.
- the support is advantageously provided on its surface facing the receiving space with a friction element which increases a coefficient of static friction, in particular in the form of a comparatively rough applied plate.
- connection of the reset lever and the support on a common cross member reduces the number of components required. It offers the possibility of common use of components in both facilities and thus a high concentration of functions in a minimum of installation space.
- the combined support and centering device can be pre-assembled as a modular unit and, if required, can also be retrofitted in existing vehicles with little effort.
- the required installation space is low due to the concentration of the components and the common allocation of functions in both facilities. Only one attachment is required for both devices on the vehicle, which can also be concentrated locally.
- the articulated connection of the reset lever is provided in a vertically central area of the reset lever so that the respective lateral contact surface is positioned above an axis of rotation of the articulated connection and a lower end of the reset lever is positioned below the axis of rotation.
- At least one spring accumulator acts on the lower end of the reset lever.
- a common spring accumulator can also act on both lower reset lever ends and push them apart elastically, for example.
- the at least one spring accumulator or its connection is provided above the articulated connection of the reset lever on the cross member.
- the support is supported by at least one compression spring or by at least two compression springs on the traverse and / or mounted on it.
- the support is preferably aligned with a vertical linear guide (which can also be referred to as a linear vertical guide) on the traverse. This means that the support can only move in the vertical direction relative to the cross member along the linear guide, but not in the horizontal direction transversely to the longitudinal axis of the coupling arm.
- a vertical linear guide which can also be referred to as a linear vertical guide
- At least one spring accumulator is provided for each reset lever, which acts on the one hand on the reset lever and on the other hand on the console, the spring accumulator being designed in particular as a tension spring.
- the console comprises two wall connection elements which are connected to one another via the cross member.
- the traverse is screwed to the wall connection elements.
- the wall connection elements can for example be screwed to the car or rail vehicle, to the car body or, as a rule, to a support frame of the car.
- the traverse is inserted into the wall connection elements or pushed through them.
- the supporting forces can be conducted from the crossbeam into the wall connection elements.
- the screw connection if it is provided, serve the exact positioning of the traverse relative to the wall connection elements, but need not absorb any supporting forces.
- crossbeam and / or the wall connection elements are designed as bent sheet metal components. This enables particularly cost-effective manufacture and weight savings.
- the components can be folded from flame cuts and not represent long-distance parts.
- the wall connection elements are preferably designed as sheet metal angles, the traverse can, for example, be designed as a U-profile or comprise such a profile.
- the support can be designed, for example, as a U-profile, in particular also in the form of a bent sheet metal component. Recesses made in the support can be produced, for example, by flame cutting.
- At least one vertical stop can advantageously be provided at a lower end of the U-profile or at both lower ends of the U-profile, which the movement of the support upwards, thus a movement in the sense of a rebound of the spring support, limited and which strikes the traverse.
- the support is aligned with a vertical linear guide on the traverse and the linear guide comprises, for example, a bolt or other plug-in component that is on the one hand fixedly connected to the traverse, in particular is pushed through it, and on the other hand is guided in a vertical slot in the support is, this vertical linear guide acts in the worst case as a fulcrum that favors a twisting or tilting of the support about an axis of rotation that is parallel to the longitudinal axis of the coupling arm, that is perpendicular to the cross member.
- the spring force of a compression spring promotes this tilting, at least if the compression springs are installed pretensioned in the relieved state of the support.
- the coupling arm can swing open and move from the central position to one of the two return levers, combined with tilting of the support, whereby one of the two compression springs is completely relieved.
- the coupling arm can swing alternately against the two lateral contact surfaces of the reset lever, with alternating tilting of the support, and these oscillations can be transferred to the crossbeam and the stationary console up to the frame of the rail vehicle. All components affected by this are exposed to constant and increased stress, which is unfavorable.
- the support is advantageously provided with at least one vertical stop, which strikes the cross member to limit a rebound travel of the spring support of the support during rebound.
- the vertical stop is preferably arranged below the traverse.
- the at least one vertical stop particularly preferably extends in a transverse direction from one axial end to the other axial end of the support, or at least one vertical stop is correspondingly provided in the region of each axial end of the support.
- the transverse direction corresponds to the direction in which the traverse extends in the direction from one reset lever to the other.
- the at least one vertical stop is molded onto the support in the region of a lower end of the support, that is to say formed in one piece with the support.
- the at least one vertical stop is mounted as a separate component on the support, for example screwed.
- a material with damping properties for example made of rubber or a comparatively soft metal, is particularly suitable as the material of the at least one vertical stop.
- a spring steel is used as the material of the vertical stop.
- the support in particular with its at least one vertical stop, is supported in the horizontal direction and in particular perpendicular to the crossbeam, that is, in the direction of the coupling arm, against spring pots connected to the crossbeam, which carry the two compression springs and, for example, on the outside thereof Enclose scope.
- a separate spring cup can be provided for each compression spring.
- individual vertical stops are provided at both axial ends of the support, in particular on the right and left of the vertical linear guide, then these can be formed, for example, by locking pins that are secured in particular with washers and cotter pins.
- An automatic train coupling according to the invention has a horizontally and usually also vertically deflectable coupling arm and a support and centering device of the type shown, the coupling arm extending through the receiving space, being vertically resiliently supported from below by the support and horizontally with two lateral outer surfaces is at a distance from the lateral contact surfaces or rests against them.
- a unilateral concern or a bilateral concern can be provided. As a rule, however, a certain distance is provided on both sides when the coupling arm is not deflected.
- the return levers hold the coupling arm preferably in a horizontally aligned position and thus always in a position ready for coupling.
- the restoring force of the restoring lever or the at least one associated spring accumulator is preferably designed in such a way that the uncoupled coupling arm (or the uncoupled coupling with the coupling arm) cannot deflect beyond the stop position specified by the lateral contact surfaces, even in the event of lateral accelerations in the ferry operation of the rail vehicle This means that the reset levers are not yet deflected by the coupling arm, and thus the coupling or the coupling arm is always ready for coupling in an aligned coupling position. In the coupled state, however, the reset levers are deflected or pivoted about their axes of rotation when cornering and thus allow the necessary deflection leeway.
- the coupling arm can manually force against the reset lever and thus the reset force of the at least one Spring accumulator are deflected and is held in the deflected position only due to the friction between the coupling arm and the support.
- a further advantage of the solution according to the invention results with regard to a coupling that plunges into the underframe in the event of a crash.
- the construction is designed to be durable in the vertical direction to support the coupling arm and thus the weight forces of the coupling, but has the property of deforming in the axial direction, i.e. in the direction of the longitudinal axis of the coupling arm and thus the coupling and thus optional deformation elements in the coupling and on To offer the vehicle a larger stroke.
- Figure 3 is a schematic diagram of a support and support according to the invention.
- Figure 4 is a schematic three-dimensional view of a
- FIG. 5 shows the supporting and centering device from FIG. 4 without
- FIG. 6 shows, in an exploded view, the connection of the traverse to one of the two wall connection elements;
- FIG. 7 shows a support and centering device according to the invention with an alternative design of the support;
- FIG. 8 shows a further support and centering device according to the invention with an alternative design of the support
- FIG. 9 shows a view from below of the supporting and centering device of
- FIG. 10 is a view from the front of the supporting and centering device from FIG. 8;
- FIG. 11 shows a view from above of the supporting and centering device from FIG. 8;
- FIG. 12 shows a section along the section line A-A from FIG. 10;
- FIG. 13 shows a section along the section line B-B from FIG.
- the support and centering device has a bracket 2 with two wall connection elements 14, 15 which are connected to one another via the cross member 9.
- a plug connection or plug-screw connection is provided, as will be explained later with reference to FIG.
- Each reset lever 4, 5 is pivotable about an axis of rotation 10, against the force of a spring accumulator 7, 8, which is designed here as a tension spring.
- Each reset lever 4, 5 has a lateral contact surface 4.1, 5.1, the lateral contact surfaces 4.1 and 5.1 facing one another in order to delimit a receiving space 6 between them.
- the receiving space 6 is delimited by a support 1, which is mounted in a vertical linear guide 13 on the cross member 9 and is elastically supported on the cross member 9 via two compression springs 11, 12.
- the central reset 3 of the support and centering device is formed solely by the reset levers 4, 5 and the spring accumulators 7, 8, the central reset 3 relating to a horizontal reset.
- the corresponding reset lever 4, 5 is rotated back around the axis of rotation 10 and pushes the coupling arm 20 into the horizontal central position.
- FIG. 4 the basic diagram from FIG. 3 is shown again in a constructive embodiment. Corresponding components are provided with the corresponding reference symbols.
- the cross member 9 and the support 1 extend transversely to the longitudinal axis 19 of the coupling arm 20 in the horizontal direction. It can be seen that at the front end, that is to say at the free end, of the coupling arm 20 coupling elements such as funnels and cones as well as air coupling connections and the like are provided.
- the plug connection between the cross member 9 and the wall connection elements 14, 15 can also be better seen in FIG. By means of the plug connection, supporting forces absorbed by the cross member 9 can be transmitted to the wall connection elements 14, 15 and thus the carriage.
- the linear guide 13 of the support 1 on the cross member 9 is formed by an elongated hole or a slot in the support 1 and a corresponding projection, for example a bolt and / or a screw, in the cross member 9.
- the support 1 has a friction element 16 on its upper surface which produces the desired static friction forces between the coupling arm (not shown) and the support 1.
- FIGS. 5 and 6 the supporting and centering device from FIG. 4 and the connection area between the wall connection element 14 and the cross member 9 are shown in an exploded view.
- the corresponding reference numerals are again used for the corresponding components.
- FIG. 7 a design of a support and centering device is shown, in which the support 1 is particularly secure against tilting and swinging in the unloaded state.
- the socket pin 24 of the vertical linear guide 13 acts as a fulcrum in the sense of tilting the support 1.
- a vertical stop 21 which strikes the traverse 9 to limit the path of the spring support of the support 1 during rebound, such tilting, which threatens especially in the relieved state of the support 1, can be avoided.
- the vertical stops 21 are positioned below the traverse 9 and strike the traverse 9 from below when the compression springs 11, 12 spring out.
- the two vertical stops 21 can also be designed, for example, as socket pins 25 which are inserted through the two legs of the U-shaped component that forms the support 1.
- the two vertical stops 21 are also advantageously supported in the transverse direction 23 against the two spring pots 22, which, as can also be seen in the embodiment according to FIG. 4, accommodate the two compression springs 11, 12.
- FIGS. 4 to 6 the features of which can also be provided in this exemplary embodiment in accordance with the illustration in FIG.
- FIGS. 8 to 13 differs from that of FIG. 7 in the design of the vertical stops 21.
- the vertical stops 21 extend in the transverse direction 23, which runs horizontally and is arranged perpendicular to the longitudinal axis 19, from one axial end to to the other axial end of the support 1.
- the vertical stops 21 are positioned below the cross member 9 and strike the cross member 9 from below when the compression springs 11, 12 spring out.
- the two vertical stops 21 are provided one behind the other in the direction of the longitudinal axis 19 at the lower end of the legs of the U-shaped body which forms the support 1. As a result of the design, a large stop surface of the vertical stops 21 can be achieved, which is beneficial in terms of component loading. Furthermore, the two vertical stops 21 are supported in the direction of the longitudinal axis 19 against the spring pots 22, so that the support 1 is reliably guided on both sides in the direction of the longitudinal axis 19.
- the two vertical stops 21 are connected as a separate component to the lower end of the support 1. However, they could also be made in one piece with the base body of the support 1, which is U-shaped here.
- FIGS. 4 to 7 For further details that are also possible in this embodiment, reference is made to the description of FIGS. 4 to 7 and the corresponding representations in FIGS. 8 to 13.
- socket pin 24 of the linear guide 13 is secured with a split pin 26.
- the socket pin 24 of the linear guide 13 can also be designed accordingly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019105619.5A DE102019105619A1 (de) | 2019-03-06 | 2019-03-06 | Abstütz- und Zentriervorrichtung für einen Kupplungsarm einer automatischen Zugkupplung |
DE102019132636 | 2019-12-02 | ||
PCT/EP2020/055404 WO2020178223A1 (de) | 2019-03-06 | 2020-03-02 | Abstütz- und zentriervorrichtung für einen kupplungsarm einer automatischen zugkupplung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3934961A1 true EP3934961A1 (de) | 2022-01-12 |
Family
ID=69780158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20710079.3A Pending EP3934961A1 (de) | 2019-03-06 | 2020-03-02 | Abstütz- und zentriervorrichtung für einen kupplungsarm einer automatischen zugkupplung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3934961A1 (de) |
WO (1) | WO2020178223A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021203426A1 (de) | 2021-04-07 | 2022-10-13 | Siemens Mobility GmbH | Schienenfahrzeug mit Mittelpufferkupplung |
CN113696931B (zh) * | 2021-07-29 | 2022-12-20 | 港铁(苏州)轨道装备有限公司 | 一种铁路货车车钩支撑装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578180A (en) | 1968-12-19 | 1971-05-11 | Midland Ross Corp | Car coupler centering device |
US3642149A (en) * | 1969-12-15 | 1972-02-15 | Holland Co | Coupler-positioning device for railroad car couplers |
DE2201786A1 (de) * | 1972-01-14 | 1973-07-19 | Knorr Bremse Gmbh | Zentriervorrichtung fuer mittelpufferkupplungen von schienenfahrzeugen |
DE2822104C2 (de) * | 1974-04-20 | 1986-08-07 | Scharfenbergkupplung Gmbh, 3320 Salzgitter | Vorrichtung zur horizontalen Mittenrückstellung einer Mittelpufferkupplung |
DE9421683U1 (de) | 1994-12-16 | 1996-06-20 | Bergische Stahlindustrie | Abstütz- und Zentriereinrichtung für einen Kupplungsarm einer automatischen Mittelkupplung (AMK) von Schienenfahrzeugen |
-
2020
- 2020-03-02 WO PCT/EP2020/055404 patent/WO2020178223A1/de unknown
- 2020-03-02 EP EP20710079.3A patent/EP3934961A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CN113597397A (zh) | 2021-11-02 |
WO2020178223A1 (de) | 2020-09-10 |
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