EP0613809B1 - High speed bogie for railway wagon - Google Patents

High speed bogie for railway wagon Download PDF

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Publication number
EP0613809B1
EP0613809B1 EP19940250051 EP94250051A EP0613809B1 EP 0613809 B1 EP0613809 B1 EP 0613809B1 EP 19940250051 EP19940250051 EP 19940250051 EP 94250051 A EP94250051 A EP 94250051A EP 0613809 B1 EP0613809 B1 EP 0613809B1
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EP
European Patent Office
Prior art keywords
spring
rubber
bogie
vertical
axle box
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.)
Expired - Lifetime
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EP19940250051
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German (de)
French (fr)
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EP0613809A1 (en
Inventor
Franz Moeschler
Steffen Worbs
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Institut fur Schienenfahrzeuge GmbH
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Institut fur Schienenfahrzeuge GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04Bolster supports or mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/305Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/308Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating damping devices

Definitions

  • the invention relates to a freight car bogie for high speeds.
  • the small friction paths or amplitudes that occur when the sine run is inhibited from turning require a longitudinally almost rigid linkage of the cradle to the bogie.
  • the articulation designs known from high-speed passenger coaches are elastic. By installing the rubber elements, which are progressively elastic in the longitudinal direction of the vehicle, for vibration isolation of the wheel set excitation forces, the effectiveness of the rotation inhibition in the high-speed range is inadmissibly reduced.
  • axle suspension and guidance contains an all-round elastic articulation of the axle bearing housing, in which the greatest elasticity is present in the longitudinal direction in order to allow the wheel set to be freely adjustable in the track curve.
  • An additional spring presses a longitudinally articulated sliding piece against an upper friction surface of the axle bearing housing and thereby generates longitudinal friction damping.
  • a spring leaf axle linkage is described in DE-OS 3918300, in which a rubber intermediate bearing is arranged at the connecting point of the handlebar on the axle bearing housing.
  • a damper which lies parallel to the spring leaf and is arranged between the axle bearing and the bogie clamping point, dampens the longitudinal elasticity.
  • GB-A-772.644 describes a bogie in which combined guide and suspension elements are arranged between the bogie frame and the axle bearing housing upper part and the axle bearing housing lower part, the vertical suspension of which is progressive, the longitudinal one Spring constant is considerably larger than the lateral spring constant.
  • the object of the invention is to provide a bogie that meets the requirements listed above for sufficient torsion resistance and sufficient roll stability with good shock and vibration isolation, with a contradiction between the almost longitudinally rigid articulation of the cradle to the bogie frame and on the other hand there is sufficient longitudinal elasticity for vibration isolation of the wheelset excitation forces resulting from the unbalance and out-of-roundness.
  • This requires an almost longitudinally rigid coupling of the cradle to the bogie frame for effective rotation inhibition of the small sinusoidal amplitudes and, on the other hand, sufficient longitudinal elasticity in the bogie for vibration isolation of the wheel set excitation forces resulting from the unbalance and out-of-roundness.
  • the large differences in masses or mass inertias that exist between an empty and a loaded freight car must be taken into account.
  • the object is achieved by the features of the claims.
  • the further related and derived features relate to a twistable H-shaped bogie frame with a Z-shaped, almost longitudinally rigid linkage of the cradle and lateral support of the freight wagon.
  • the secondary spring distance can be the same size as the primary spring distance. Greater roll stability can be achieved by increasing the secondary spring distance. A further increase results in pendulums inclined outwards compared to the vertical. Basically, the pendulums are designed to be adjustable to exhaust the permissible static deflection. Furthermore, the primary and Secondary spring characteristics progressively designed according to an e-function in order to maintain constant deflection frequencies in all loading conditions.
  • the multiple axle shaft disc brake requires special attention. The low primary spring amplitudes make no special demands on the suspension of the brake pads and their linkage. Almost the full shock and vibration isolation is preserved even during braking.
  • the bogie frame is specially designed for the disc brake so that there are sufficient free cross-sections so that the air required for cooling can also reach the braking device of the trailing wheel set.
  • the H-shaped and twistable bogie frame 1 is vertically articulated by two elastic cardanic bearings 2, but horizontally rigid. These bearings 2 are arranged diagonally opposite in the middle part of the long beams 3 and support one side of the cross beams 4 while the other side is firmly connected to the other long beams 3.
  • the cross members 4 also carry the disc brake linkages 5.
  • the rocker arms 6 are coupled in a Z-shaped manner almost longitudinally rigid and cardanically at two diagonally opposite ends of the long members 3. These connect the cradle 7 to the bogie frame 1. In the middle of the cradle 7, a pivot pin 8 is immersed, which transmits the longitudinal and transverse forces. The vertical load is transmitted via the side sliders 9.
  • the sliders 9 can bring about the required rotation inhibition.
  • the sliding amplitudes usually only reach an amount of up to 2 mm.
  • the cradle 7 is based on the coil springs 10, which have a rubber additional spring 11 on the inside and produce a progressive characteristic curve according to an e-function in the working area of the two coil springs 10 and rubber additional spring 11.
  • the proportion of cradle springs is approx. 90% of the permissible static spring travel between empty and loaded vehicle.
  • the coil springs 10 and additional rubber springs 11 stand on the weighing trough 12. This hangs on vertical pendulums 13 which can be adjusted to compensate for the loss of height due to tread correction.
  • the pendulums 13 are connected to the weighing trough 12 by a pin bearing 14 in order to avoid instability due to the tipping of the weighing trough 12.
  • the pendulum 13 is supported in the long beam 3 by a spherical bearing 15 Long beam 3 widened. There is an opening through which the coil springs 10 protrude.
  • combined guide, suspension and damping elements 16 are arranged, which articulate the wheel sets 17. The guide, suspension and damping elements 16 will be discussed in more detail later.
  • FIGS. 3 to 4 In order to achieve the roll stiffness with simple means even with the full permissible spring travel, a further embodiment variant is presented in FIGS. 3 to 4.
  • the more rigid bogie is achieved by increasing the transverse spacing of the coil springs 10. This is very effective because the distance to the square is included in the roll stiffness. Otherwise, the bogie largely corresponds to the original version.
  • the two elastic gimbal bearings 2, which connect the bogie halves, are adapted to the changed conditions and allow the cross member 4 to protrude beyond the long member 3.
  • the pendulums 13 are arranged at an angle to the long beam 3 and the suspension points are located in the cross beams 4.
  • the cradle 12 is also suspended at the same angle and the pendulums 13 have spherical bearings 15 at the top and bottom. To prevent instabilities in the cradle troughs 12, they are coupled together by two torsion-soft trough connectors 18.
  • the wheel sets 17 are also articulated by the combined guide, suspension and damping elements 16.
  • FIGS. 5 to 7 show such an embodiment variant, in which the pendulums 13 are arranged in the long beam 3.
  • the bogie has analog components of the first or second variant. The main difference is that the cradle 12 is not suspended directly from the pendulums 13, but with the trough connector 18 interposed.
  • the guide, suspension and damping element 16 contained in all the design variants is shown in FIGS. 8 to 10.
  • the wheel set 17 has closed tapered roller bearing units 34 on both sides, these are encompassed by an axle bearing housing upper part 19 and an axle bearing housing lower part 20, the latter having an opening 21 at the bottom so that hot running detectors can determine the bearing temperatures exactly.
  • the axle bearing housing upper part 19 and axle bearing housing lower part 20 are held together by the housing cover 22 and the housing base 23.
  • the vertical load is largely transmitted from the upper rubber compression spring 24. So that the desired progressive characteristic arises, the rubber compression spring 24 receives a support bell 25, which also serves as a vertical emergency stop.
  • a horizontal friction plate 26 is located between the rubber compression spring 24 and the upper housing part 19. This has an annular support and friction surface and fills the distance between the housing cover 22 and the housing base 23.
  • the friction plate 26 is elastically deformable over the flat cross section, but is kink-resistant with respect to the friction forces that occur. At its end, this is rotatably and vertically displaceably mounted on a bolt 27 which is fastened to the end of the long beam 3.
  • a rubber thrust compression spring 28 is fastened at an outside angle of 75 °.
  • a pressure wedge 29 and a vertical friction plate 30 each, the annular support and friction surface of which are firmly connected in a vertical groove of the pressure wedge 29, this receives the vertical guidance at the top the dividing joint through the axle bearing housing upper part 19 and below through a nose of the axle bearing housing lower part 20.
  • the lateral guides form the housing cover 22 and the housing base 23.
  • the shafts of the vertical friction plates are also elastic and resistant to buckling and are rotatably and displaceably mounted on a bolt 27 at the bottom. These bolts 27 are fastened to an axle holder web 31 which, like the lower housing part 20, also has an opening.
  • the rubber thrust compression springs 28 are detachably held on the outside in the long beam 3.
  • a prismatic stop 32 and laterally a step-shaped stop 33 serve laterally. This also forms the horizontal boundaries and emergency guides of the wheel set 17 in that the housing cover 22 and the housing base 23 then come into contact with the step-shaped stop 33.
  • the vertical suspension is created by the upper rubber compression spring 24 and the lateral rubber thrust compression springs 28.
  • the pressure components of the rubber thrust compression spring 28 are used for the most part, while the transverse suspension and guidance are carried out by thrust components of the same rubber thrust compression springs 28.
  • the load-dependent friction damping of the longitudinal movement arises between the horizontal friction plate 26 and the upper housing part 19.
  • the force of only one rubber-thrust compression spring 28, with the pressure wedge 29 being partitioned between them, ensures the vertical load-dependent friction damping between the axle bearing housing lower part 20 and the vertical friction plate 30 and between this and the pressure wedge is created.
  • the load-dependent transverse damping results from the rotary movement of the horizontal friction plate 26 and the two vertical friction plates 30 around the bolt 27 and from the lateral contact of the annular friction surfaces.
  • the coordinated elasticities and damping in all three directions make it possible to achieve stable vehicle running even at high driving speeds with vibration isolation of the wheel set excitation forces on the axle bearing housing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Handcart (AREA)
  • Springs (AREA)

Description

Die Erfindung betrifft ein Güterwagendrehgestell für hohe Geschwindigkeiten.The invention relates to a freight car bogie for high speeds.

Gegenüber Standard-Güterwagendrehgestellen sind besondere Einrichtungen und Maßnahmen zur Erzielung der erforderlichen Laufruhe und der notwendigen Abbremsung bei hohen Fahrgeschwindigkeiten vorgesehen. Andererseits bestehen bei der Vielzahl von Güterwagen strengere wirtschaftliche Maßstäbe, die nur den unbedingt nötigen Aufwand rechtfertigen. Die hieraus resultierenden technischen Forderungen lassen sich wie folgt zusammenfassen: Hinsichtlich der Laufruhe müssen Güterwagen für einen Geschwindigkeitsbereich über 140 km/h eine lateral entkoppelte Drehgestellanlenkung aufweisen, um nicht den Güterwagen zu zwingen, den lateralen Bewegungen des Drehgestells beim Sinuslauf zu folgen. Ebenso ist zur Stabilisierung desselben eine ausreichende Drehhemmung zwischen Wagen und Drehgestell vorzusehen. Bei vielen Güterwagen besteht auch die Forderung nach verbesserter Wankstabilität. Nicht zuletzt ist eine bessere vertikale Stoß- und Schwingungsisolation durch größere vertikale Federwege vonnöten, da mit höheren Fahrgeschwindigkeiten die Störkräfte ansteigen.Compared to standard freight car bogies, special facilities and measures are provided to achieve the required smoothness and the necessary braking at high driving speeds. On the other hand, there are stricter economic standards for the large number of freight wagons that justify the effort that is absolutely necessary. The resulting technical requirements can be summarized as follows: With regard to smooth running, freight wagons must have a laterally decoupled bogie linkage for a speed range above 140 km / h, so as not to force the freight wagons to follow the lateral movements of the bogie during sinus movement. Adequate anti-rotation between the carriage and the bogie must also be provided to stabilize the same. Many freight wagons also demand improved roll stability. Last but not least, better vertical shock and vibration isolation due to larger vertical spring travel is required, since the disturbance forces increase with higher driving speeds.

Ab 160 km/h machen sich longitudinale Erregerkräfte störend bemerkbar, die aus der Unwucht und Unrundheit der Radsätze herrühren und den Wagen zu vertikalen Biegeschwingungen anregen. Für die Abbremsung müssen Scheibenbremsen in Mehrfachanordnung mit Maßnahmen zur besseren Wärmeabführung eingesetzt werden, da Klotzbremsen den bei hohen Geschwindigkeiten auftretenden Anforderungen nicht genügen.From 160 km / h, longitudinal excitation forces are noticeable, which result from the unbalance and out-of-roundness of the wheel sets and excite the car to vertical bending vibrations. Disc brakes in multiple arrangements with measures for better heat dissipation must be used for braking, since block brakes do not meet the requirements that occur at high speeds.

Zur Lösung des Problems sind eine Vielzahl von Vorschlägen bekannt, die sich gegenseitig häufig widersprechen oder ausschließen bzw. zu aufwendig sind und meistens aus dem Bereich der Reisezugwagen-Drehgestelle kommen.A large number of proposals are known for solving the problem, which frequently contradict or exclude one another or are too complex and mostly come from the field of passenger car bogies.

Es ist der Stand der Technik, für die lateral entkoppelte Drehgestellanlenkung eine Wiege mit Pendeln oder Schaken und Querdämpfern vorzusehen. Die Nutzung der Flexicoil-Wirkung von Schraubenfedern scheidet aus, da die vorhandenen großen Belastungsunterschiede bei Güterwagen den Schraubenfedern aufgrund entstehender Querfederungseigenschaften nicht entsprechen. Es ist weiter bekannt, zur vollständigen Ausnutzung der vertikal zulässigen statischen Absenkung des Wagens zwischen leer und beladen nach stellbare Pendel vorzusehen. Die für Güterwagen günstigere belastungsproportionale Reibdämpfung durch seitliche Auflagerung auf die Wiege zur Stabilisierung des Sinuslaufes muß im Kochgeschwindigkeitsbereich sorgfältig erfolgen. So erfordern die bei der Drehhemmung des Sinuslaufes auftretenden kleinen Reibwege bzw. -amplituden eine longitudinal nahezu starre Anlenkung der Wiege an das Drehgestell. Die bei Hochgeschwindigkeitsreisezugwagen bekannten Anlenkungsausführungen sind elastisch. Durch den Einbau der in Fahrzeuglängsrichtung progressiv elastischen Gummielemente zur schwingungsmäßigen Isolierung der Radsatzerregerkräfte wird die Effektivität der Drehhemmung im Hochgeschwindigkeitsbereich unzulässig abgemindert. Ein weiterer Bereich, in dem naheliegende Lehren vermittelt werden, ist die Achsfederung und -führung. Die Schrift DE-OS 2309702 beinhaltet eine allseitig elastische Anlenkung des Achslagergehäuses, bei der in longitudinale Richtung die größte Elastizität vorhanden ist, um eine freie Einstellbarkeit des Radsatzes im Gleisbogen zu ermöglichen. Ein zusätzliche Feder preßt ein längssteif angelenktes Gleitstück gegen eine oben liegende Reibfläche des Achslagergehäuses und erzeugt dadurch eine longitudinale Reibdämpfung. Weiterhin wird in der DE-OS 3918300 eine Federblatt-Achsanlenkung beschrieben, bei der an der Verbindungsstelle des Lenkers am Achslagergehäuse ein Gummizwischenlager angeordnet ist. Ein Dämpfer, der parallel zum Federblatt liegt und zwischen Achslager und Drehgestelleinspannstelle angeordnet ist, dämpft die Längselastizität. In der GB-A-772.644 ist ein Drehgestell beschrieben, bei dem zwischen Drehgstellrahmen und Achslagergehäuseoberteil sowie Achslagergehäuseunterteil kombinierte Führungs- und Federungselemente angeordnet sind, deren Vertikalfederung progressiv ist, wobei die longitudinale Federkonstante erheblich größer als die laterale Federkonstante ist.It is the state of the art for a cradle with pendulums or shackles for the laterally decoupled bogie linkage and to provide transverse dampers. The use of the flexicoil effect of coil springs is ruled out because the existing large load differences in freight cars do not correspond to the coil springs due to the resulting transverse suspension properties. It is also known to provide for fully utilizing the vertically permissible static lowering of the car between empty and loaded after adjustable pendulums. The friction damping, which is more favorable for freight wagons, due to lateral support on the cradle to stabilize the sinus movement, must be done carefully in the cooking speed range. For example, the small friction paths or amplitudes that occur when the sine run is inhibited from turning require a longitudinally almost rigid linkage of the cradle to the bogie. The articulation designs known from high-speed passenger coaches are elastic. By installing the rubber elements, which are progressively elastic in the longitudinal direction of the vehicle, for vibration isolation of the wheel set excitation forces, the effectiveness of the rotation inhibition in the high-speed range is inadmissibly reduced. Another area in which obvious lessons are taught is axle suspension and guidance. The document DE-OS 2309702 contains an all-round elastic articulation of the axle bearing housing, in which the greatest elasticity is present in the longitudinal direction in order to allow the wheel set to be freely adjustable in the track curve. An additional spring presses a longitudinally articulated sliding piece against an upper friction surface of the axle bearing housing and thereby generates longitudinal friction damping. Furthermore, a spring leaf axle linkage is described in DE-OS 3918300, in which a rubber intermediate bearing is arranged at the connecting point of the handlebar on the axle bearing housing. A damper, which lies parallel to the spring leaf and is arranged between the axle bearing and the bogie clamping point, dampens the longitudinal elasticity. GB-A-772.644 describes a bogie in which combined guide and suspension elements are arranged between the bogie frame and the axle bearing housing upper part and the axle bearing housing lower part, the vertical suspension of which is progressive, the longitudinal one Spring constant is considerably larger than the lateral spring constant.

Alle diese Schriften vermitteln jedoch nicht die vollständige Lösung für Hochgeschwindigkeits-Güterwagendrehgestelle.However, all of these fonts do not convey the complete solution for high speed freight bogies.

Aufgabe der Erfindung ist es, ein Drehgestell zu schaffen, welches die eingangs aufgezählten Forderungen nach ausreichender Drehhemmung und genügender Wankstabilität bei guter Stoß- und Schwingungsisolation erfüllt, wobei ein Widerspruch zwischen der für die Drehhemmung erforderlichen nahezu längsstarren Anlenkung der Wiege an den Drehgestellrahmen und andererseits nach einer ausreichenden Längselastizität zur Schwingungsisolation der Radsatzerregerkräfte, die aus der Unwucht und Unrundheit herrühren, besteht. Das erfordert eine nahezu längsstarre Ankoppelung der Wiege an den Drehgestellrahmen zur effektiven Drehhemmung der kleinen Sinuslauf-Amplituden und andererseits eine ausreichende Längselastizität im Drehgestell zur schwingungsmäßigen Isolation der Radsatzerregerkräfte, die aus der Unwucht und Unrundheit herrührt. Hierbei sind den großen Unterschieden der Massen bzw. Massenträgheiten, die zwischen einem leeren und einem beladenen Güterwagen bestehen, Rechnung zu tragen.The object of the invention is to provide a bogie that meets the requirements listed above for sufficient torsion resistance and sufficient roll stability with good shock and vibration isolation, with a contradiction between the almost longitudinally rigid articulation of the cradle to the bogie frame and on the other hand there is sufficient longitudinal elasticity for vibration isolation of the wheelset excitation forces resulting from the unbalance and out-of-roundness. This requires an almost longitudinally rigid coupling of the cradle to the bogie frame for effective rotation inhibition of the small sinusoidal amplitudes and, on the other hand, sufficient longitudinal elasticity in the bogie for vibration isolation of the wheel set excitation forces resulting from the unbalance and out-of-roundness. The large differences in masses or mass inertias that exist between an empty and a loaded freight car must be taken into account.

Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche gelöst. Die weiterhin davon bedingten und abgeleiteten Merkmale beziehen sich auf einen verwindbaren H-förmigen Drehgestellrahmen mit einer Z-förmigen fast längsstarren Anlenkung der Wiege und seitlichen Auflagerung des Güterwagens.The object is achieved by the features of the claims. The further related and derived features relate to a twistable H-shaped bogie frame with a Z-shaped, almost longitudinally rigid linkage of the cradle and lateral support of the freight wagon.

Je nach bestehenden Forderungen hinsichtlich der Wankstabilität kann der Sekundärfederabstand gleich groß wie der Primärfederabstand sein. Eine größere Wankstabilität läßt sich durch Vergrößerung des Sekundärfederabstandes erzielen. Eine weitere Steigerung ergeben gegenüber der Senkrechten nach außen geneigte Pendel. Grundsätzlich werden zur Ausschöpfung der zulässigen statischen Einfederung die Pendel nachstellbar gestaltet. Weiterhin sind die Primär- und Sekundärfederkennlinien progressiv nach einer e-Funktion gestaltet, um gleichbleibende Einfederungsfrequenzen in allen Beladungszuständen zu erhalten. Besonderes Augenmerk erfordert die Mehrfach- Achswellen- Scheibenbremse. Die geringen Primärfederamplituden stellen keine besonderen Anforderungen an die Aufhängung der Bremsbeläge und ihrer Gestänge. Auch während des Bremsens ist nahezu die volle Stoß- und Schwingungsisolation erhalten.Depending on the existing requirements with regard to roll stability, the secondary spring distance can be the same size as the primary spring distance. Greater roll stability can be achieved by increasing the secondary spring distance. A further increase results in pendulums inclined outwards compared to the vertical. Basically, the pendulums are designed to be adjustable to exhaust the permissible static deflection. Furthermore, the primary and Secondary spring characteristics progressively designed according to an e-function in order to maintain constant deflection frequencies in all loading conditions. The multiple axle shaft disc brake requires special attention. The low primary spring amplitudes make no special demands on the suspension of the brake pads and their linkage. Almost the full shock and vibration isolation is preserved even during braking.

Speziell für die Scheibenbremse ist der Drehgestellrahmen so gestaltet, daß ausreichend freie Querschnitte vorhanden sind, damit die für die Kühlung notwendige Luft auch zur Bremseinrichtung des nachlaufeden Radsatzes gelangen kann.The bogie frame is specially designed for the disc brake so that there are sufficient free cross-sections so that the air required for cooling can also reach the braking device of the trailing wheel set.

Die Einzelheiten der Erfindung sind an drei Ausführungsvarianten erläutert. Es zeigen:

Fig. 1:
Die halbe Seitenansicht und den halben Mittenlängsschnitt eines Hochgeschwindigkeits-Güterwagendrehgestell speziell für Geschwindigkeiten ab 160 km/h nach der Linie I-I der Fig. 2,
Fig. 2:
die Draufsicht auf das Drehgestell nach Fig. 1,
Fig. 3:
die halbe Seitenansicht und den halben Mittenlängsschnitt eines wanksteiferen Hochgeschwindigkeits-Güterwagendrehgestells für Geschwindigkeiten über 200 km/h nach einer Linie III - III der Fig. 4,
Fig. 4:
die Draufsicht auf das Drehgestell nach Fig. 3,
Fig. 5:
die halbe Seitenansicht und den halben Mittenlängsschnitt eines weiteren wanksteiferen Hochgeschwindigkeits-Güterwagendrehgestells für Geschwindigkeiten über 200 km/h nach einer Linie V - V der Fig. 6,
Fig. 6:
die Draufsicht auf das Drehgestell nach Fig. 5,
Fig. 7:
einen Querschnitt nach der Linie VI-VI der Fig. 6,
Fig. 8:
die halbe Seitenansicht und den halben Längsschnitt des Führungs-, Federungs- und Dämpfungselements in einem größeren Maßstab,
Fig. 9:
eine weitere Variante analog Fig. 8,
Fig.10:
eine halbe Draufsicht im Schnitt nach der Linie II - II der Fig. 8.
The details of the invention are explained in three variants. Show it:
Fig. 1:
Half the side view and half the longitudinal section of a high-speed freight wagon bogie especially for speeds from 160 km / h according to line II of FIG. 2,
Fig. 2:
the top view of the bogie of FIG. 1,
Fig. 3:
half the side view and half the longitudinal section of a more stiff, high-speed freight wagon bogie for speeds over 200 km / h according to a line III - III of FIG. 4,
Fig. 4:
the top view of the bogie of FIG. 3,
Fig. 5:
half the side view and half the central longitudinal section of another more stiff, high-speed freight wagon bogie for speeds above 200 km / h along a line V - V of FIG. 6,
Fig. 6:
the top view of the bogie of FIG. 5,
Fig. 7:
6 shows a cross section along the line VI-VI of FIG. 6,
Fig. 8:
half the side view and half the longitudinal section of the guide, suspension and damping element on a larger scale,
Fig. 9:
another variant analogous to FIG. 8,
Fig. 10:
a half plan view in section along the line II - II of Fig. 8th

Der H-förmige und verwindbare Drehgestellrahmen 1 ist durch zwei elastisch-kardanische Lager 2 vertikal gelenkig verbunden, jedoch horizontal ecksteif gestaltet. Diese Lager 2 sind diagonal gegenüber im mittleren Teil der Langträger 3 angeordnet und stützen eine Seite der Querträger 4 während die andere Seite mit den anderen Langträger 3 fest verbunden ist. Die Querträger 4 tragen außerdem die Scheibenbremsgestänge 5. An zwei diagonal gegenüberliegenden Enden der Langträger 3 sind nahezu längsstarr und kardanisch die Wiegenlenker 6 Z-förmig angekoppelt. Diese verbinden die Wiege 7 mit dem Drehgestellrahmen 1. In der Mitte der Wiege 7 taucht ein Drehzapfen 8 ein, welcher die längs- und quergerichteten Kräfte überträgt. Die senkrechte Belastung wird über die seitlichen Gleitstücke 9 übertragen. Infolge der nahezu längsstarren Ankopplung der Wiege 7 an den Drehgestellrahmen 1 können die Gleitstücke 9 die erforderliche Drehhemmung bewirken. Die Gleitamplituden erreichen meist nur einen Betrag bis zu 2 mm. Die Wiege 7 stützt sich auf die Schraubenfedern 10, die im Inneren eine Gummizusatzfeder 11 besitzen und im Arbeitsbereich der beiden Schraubenfedern 10 und Gummizusatzfeder 11 eine progressive Kennlinie nach einer e-Funktion erzeugen. Der Anteil der Wiegenfedern beträgt ca. 90 % des zulässigen statischen Federweges zwischen leerem und beladenem Fahrzeugs. Die Schraubenfedern 10 und Gummizusatzfedern 11 stehen auf den Wiegentrog 12. Dieser hängt an vertikalen Pendeln 13, die zum Ausgleich des Höhenverlustes infolge Laufflächenberichtigung nachstellbar sind. Die Pendel 13 werden durch eine Bolzenlagerung 14 mit dem Wiegentrog 12 verbunden, um Instabilität infolge Abkippens des Wiegentroges 12 zu vermeiden.The H-shaped and twistable bogie frame 1 is vertically articulated by two elastic cardanic bearings 2, but horizontally rigid. These bearings 2 are arranged diagonally opposite in the middle part of the long beams 3 and support one side of the cross beams 4 while the other side is firmly connected to the other long beams 3. The cross members 4 also carry the disc brake linkages 5. The rocker arms 6 are coupled in a Z-shaped manner almost longitudinally rigid and cardanically at two diagonally opposite ends of the long members 3. These connect the cradle 7 to the bogie frame 1. In the middle of the cradle 7, a pivot pin 8 is immersed, which transmits the longitudinal and transverse forces. The vertical load is transmitted via the side sliders 9. As a result of the almost longitudinally rigid coupling of the cradle 7 to the bogie frame 1, the sliders 9 can bring about the required rotation inhibition. The sliding amplitudes usually only reach an amount of up to 2 mm. The cradle 7 is based on the coil springs 10, which have a rubber additional spring 11 on the inside and produce a progressive characteristic curve according to an e-function in the working area of the two coil springs 10 and rubber additional spring 11. The proportion of cradle springs is approx. 90% of the permissible static spring travel between empty and loaded vehicle. The coil springs 10 and additional rubber springs 11 stand on the weighing trough 12. This hangs on vertical pendulums 13 which can be adjusted to compensate for the loss of height due to tread correction. The pendulums 13 are connected to the weighing trough 12 by a pin bearing 14 in order to avoid instability due to the tipping of the weighing trough 12.

Oben erfolgt die Lagerung der Pendel 13 im Langträger 3 durch ein spärisches Lager 15. Im mittleren Bereich ist der Langträger 3 verbreitert. Dort befindet sich eine Öffnung, durch welche die Schraubenfedern 10 hindurchragen. An allen vier Enden des Drehgestellrahmens 1 sind kombinierte Führungs-, Federungs- und Dämpfungselemente 16 angeordnet, welche die Radsätze 17 anlenken. Auf die Führungs-, Federungs- und Dämpfungselemente 16 wird später näher eingegangen.At the top, the pendulum 13 is supported in the long beam 3 by a spherical bearing 15 Long beam 3 widened. There is an opening through which the coil springs 10 protrude. At all four ends of the bogie frame 1, combined guide, suspension and damping elements 16 are arranged, which articulate the wheel sets 17. The guide, suspension and damping elements 16 will be discussed in more detail later.

Die volle Ausschöpfung des zulässigen Federweges ergibt eine größere Wankstabilität gegenüber konventionellen Güterwagendrehgestellen. Bei diesen wird bei eintretenden Höhenverlust infolge Laufflächenberichtigung auf eine Nachstellung verzichtet. Aus diesem Grunde steht für die Federung nur ein Teil der zulässigen statischen Absenkungen zwischen leerem und beladenem Fahrzeug zur Verfügung. D.h., die Federung ist härter und das Fahrzeug ist wanksteifer.The full use of the permissible spring travel results in greater roll stability compared to conventional freight car bogies. If there is a loss of height due to tread correction, these are not readjusted. For this reason, only a part of the permissible static reductions between empty and loaded vehicle is available for the suspension. This means that the suspension is harder and the vehicle is more stiff.

Um die Wanksteifheit mit einfachen Mitteln auch bei dem vollen zulässigen Federweg zu erzielen, wird eine weitere Ausführungsvariante in den Figuren 3 bis 4 vorgestellt.In order to achieve the roll stiffness with simple means even with the full permissible spring travel, a further embodiment variant is presented in FIGS. 3 to 4.

Das wankensteifere Drehgestell wird durch die Vergrößerung des Querabstandes der Schraubenfedern 10 erzielt. Das ist sehr effektiv, da der Abstand zum Quadrat in die Wanksteifigkeit eingeht. Ansonsten entspricht das Drehgestell weitgehend der Ausgangsvariante. Die beiden elastisch-kardanischen Lager 2, welche die Drehgestellhälften verbinden, sind den veränderten Bedingungen angepaßt und ermöglichen, daß der Querträger 4 über den Langträger 3 hinauskragt. Um Raum für den Wiegenlenker 6 zu schaffen, erfolgt die Anordnung der Pendel 13 in einem Winkel zum Langträger 3 und die Aufhängepunkte befinden sich in den Querträgern 4.The more rigid bogie is achieved by increasing the transverse spacing of the coil springs 10. This is very effective because the distance to the square is included in the roll stiffness. Otherwise, the bogie largely corresponds to the original version. The two elastic gimbal bearings 2, which connect the bogie halves, are adapted to the changed conditions and allow the cross member 4 to protrude beyond the long member 3. In order to create space for the rocker arm 6, the pendulums 13 are arranged at an angle to the long beam 3 and the suspension points are located in the cross beams 4.

Der Wiegentrog 12 ist ebenfalls im gleichen Winkel aufgehängt und die Pendel 13 besitzen oben und unten sphärische Lager 15. Damit es hierdurch nicht zu Instabilitäten der Wiegentröge 12 kommt, sind diese durch zwei torsionsweiche Trogverbinder 18 zusammengekoppelt. Die Anlenkung der Radsätze 17 erfolgt ebenfalls durch die kombinierten Führungs-, Federungs- und Dämpfungselemente 16.The cradle 12 is also suspended at the same angle and the pendulums 13 have spherical bearings 15 at the top and bottom. To prevent instabilities in the cradle troughs 12, they are coupled together by two torsion-soft trough connectors 18. The wheel sets 17 are also articulated by the combined guide, suspension and damping elements 16.

Die größte Wanksteifigkeit ohne Verwendung von zusätzlichen Stabilisatoren läßt sich bei erhöhtem Federquerabstand durch geneigte Anordnung der Pendel 13 erzielen. Eine solche Ausführungsvariante, bei der die Pendel 13 im Langträger 3 angeordnet sind, zeigen die Figuren 5 bis 7.The greatest roll stiffness without the use of additional stabilizers can be achieved with an increased spring transverse distance by inclined arrangement of the pendulums 13. FIGS. 5 to 7 show such an embodiment variant, in which the pendulums 13 are arranged in the long beam 3.

Bei der Durchfahrt eines Gleisbogens mit Fliehkraftüberschuß pendelt die Wiege 7 nach bogenaußen. Infolge der geneigten Pendel 13 um ca. 8° hebt sich dabei der bogenäußere Wiegentrog 12 während sich gleichzeitig der bogeninnere Wiegentrog 12 abgesenk. Dieser Effekt ist gleichbedeutend mit einer zusätzlichen Gleisüberhöhung oder anders ausgedrückt, vermindert er den Wankwinkel gegenüber einer senkrechten Pendelanordnung. Außer dieser Besonderheit besitzt das Drehgestell analoge Bauelemente der ersten oder zweiten Ausführungsvariante. Der Unterschied besteht hauptsächlich darin, daß der Wiegentrog 12 nicht unmittelbar an den Pendeln 13 aufgehängt ist, sondern unter Zwischenschaltung der Trogverbinder 18. Da diese Lasttragend sind, wurde auf eine torsionsweiche Bauart verzichtet und stattdessen die beiden Trogverbinder 18 diagonal an einer Seite am Wiegentrog 12 fest angeschlossen und der anderen Seite unter Zwischenschaltung eines elastisch-kardanischen Lagers 2 angelenkt. Hierdurch ist auch bei Gleisverwindungen ein Ausgleich der Belastungen im Drehgestell gegeben.When a track curve with excess centrifugal force passes through, the cradle 7 swings to the outside of the curve. As a result of the inclined pendulum 13 by approximately 8 °, the outer cradle 12 rises while the inner cradle 12 is lowered. This effect is synonymous with an additional track elevation or in other words, it reduces the roll angle compared to a vertical pendulum arrangement. In addition to this special feature, the bogie has analog components of the first or second variant. The main difference is that the cradle 12 is not suspended directly from the pendulums 13, but with the trough connector 18 interposed. Since these are load-bearing, a torsionally soft design has been dispensed with and instead the two trough connectors 18 have been diagonally on one side of the cradle 12 firmly connected and the other side articulated with the interposition of an elastic gimbal bearing 2. This also compensates for the loads in the bogie when the track is twisted.

Das in allen Ausführungsvarianten enthaltene Führungs-, Federungs- und Dämpfungselement 16 zeigen die Figuren 8 bis 10.The guide, suspension and damping element 16 contained in all the design variants is shown in FIGS. 8 to 10.

Der Radsatz 17 besitzt an beiden Seiten geschlossene Kegelrollenlagereinheiten 34, diese werden von einem Achslagergehäuseoberteil 19 und einem Achslagergehäuseunterteil 20 umfaßt, wobei letzteres unten einen Durchbruch 21 besitzt, damit Heißlauf - Detektoren die Lagertemperaturen exakt feststellen können. Das Achslagergehäuseoberteil 19 und Achslagergehäuseunterteil 20 wird durch den Gehäusedeckel 22 und dem Gehäuseboden 23 zusammengehalten. Die senkrechte Belastung wird zum größten Teil von der oberen Gummidruckfeder 24 übertragen. Damit die gewünschte progressive Kennlinie entsteht, erhält die Gummidruckfeder 24 eine Stützglocke 25, die gleichzeitig als senkrechter Notanschlag dient. Die gleichen Aufgaben kann auch ein Gürtelring 25' erfüllen. Zwischen Gummidruckfeder 24 und Gehäuseoberteil 19 befindet sich eine waagerechte Reiblamelle 26. Diese hat eine ringförmige Auflage und Reibfläche und füllt den Abstand zwischen Gehäusedeckel 22 und Gehäuseboden 23 aus.The wheel set 17 has closed tapered roller bearing units 34 on both sides, these are encompassed by an axle bearing housing upper part 19 and an axle bearing housing lower part 20, the latter having an opening 21 at the bottom so that hot running detectors can determine the bearing temperatures exactly. The axle bearing housing upper part 19 and axle bearing housing lower part 20 are held together by the housing cover 22 and the housing base 23. The vertical load is largely transmitted from the upper rubber compression spring 24. So that the desired progressive characteristic arises, the rubber compression spring 24 receives a support bell 25, which also serves as a vertical emergency stop. A belt ring 25 'can also perform the same tasks. A horizontal friction plate 26 is located between the rubber compression spring 24 and the upper housing part 19. This has an annular support and friction surface and fills the distance between the housing cover 22 and the housing base 23.

Die Reiblamelle 26 ist über den flachen Querschnitt elastisch verformhar, aber gegenüber den auftretenden Reibkräften knicksteif. An seinem Ende ist diese an einem Bolzen 27, der am Ende des Langträgers 3 befestigt ist, drehbar und senkrecht verschiebbar gelagert.The friction plate 26 is elastically deformable over the flat cross section, but is kink-resistant with respect to the friction forces that occur. At its end, this is rotatably and vertically displaceably mounted on a bolt 27 which is fastened to the end of the long beam 3.

An beiden Seiten des Achslagergehäuseoberteils 19 ist je eine Gummi- Schub- Druckfeder 28 unter einem Außenwinkel von 75° befestigt. Zwischen dem Achslagergehäuseunterteil 20 und den Gummi- Schub- Druckfedern 28 ist hier zusätzlich je ein Anpreßkeil 29 und je eine senkrechte Reiblamelle 30 angebracht, deren ringförmige Auflage und Reibfläche wird in einer senkrechten Nut des Anpreßkeiles 29 fest verbunden, dieser erhält die senkrechte Führung oben an der Teilungsfuge durch das Achslagergehäuseoberteil 19 und unten durch eine Nase des Achslagergehäuseunterteils 20.On both sides of the upper axle bearing housing part 19, a rubber thrust compression spring 28 is fastened at an outside angle of 75 °. Between the axle bearing housing lower part 20 and the rubber thrust compression springs 28 there is additionally a pressure wedge 29 and a vertical friction plate 30 each, the annular support and friction surface of which are firmly connected in a vertical groove of the pressure wedge 29, this receives the vertical guidance at the top the dividing joint through the axle bearing housing upper part 19 and below through a nose of the axle bearing housing lower part 20.

Die seitlichen Führungen bilden der Gehäusedeckel 22 und der Gehäuseboden 23. Die Schäfte der senkrechten Reiblamellen sind ebenfalls elastisch und knicksteif und sind unten auf einem Bolzen 27 dreh- und verschiebbar gelagert. Diese Bolzen 27 sind an einem Achshaltersteg 31 befestigt, der ebenfalls wie das Gehäuseunterteil 20 einen Durchbruch hat. Die Gummi- Schub- Druckfedern 28 sind außen lösbar in dem Langträger 3 gehalten. Dazu dienen oben ein prismatischer Anschlag 32 und seitlich je ein stufenförmiger Anschlag 33. Dieser bildet außerdem noch die horizontalen Begrenzungen und Notführungen des Radsatzes 17 dadurch, daß der Gehäusedeckel 22 und der Gehäuseboden 23 an den stufenförmigen Anschlag 33 dann zur Anlage kommt.The lateral guides form the housing cover 22 and the housing base 23. The shafts of the vertical friction plates are also elastic and resistant to buckling and are rotatably and displaceably mounted on a bolt 27 at the bottom. These bolts 27 are fastened to an axle holder web 31 which, like the lower housing part 20, also has an opening. The rubber thrust compression springs 28 are detachably held on the outside in the long beam 3. For this purpose, a prismatic stop 32 and laterally a step-shaped stop 33 serve laterally. This also forms the horizontal boundaries and emergency guides of the wheel set 17 in that the housing cover 22 and the housing base 23 then come into contact with the step-shaped stop 33.

Die senkrechte Federung entsteht durch die obere Gummidruckfeder 24 und die seitlichen Gummi- Schub- Druckfedern 28. Für die Längsführung und -federung dienen zum überwiegenden Teil die Druck-Komponenten der Gummi- Schub- Druckfeder 28 während die Querfederung- und führung durch Schub-Komponenten der gleichen Gummi- Schub- Druckfedern 28 erfolgt. Die belastungsabhängige Reibdämpfung der Längsbewegung entsteht zwischen waagerechter Reiblamelle 26 und Gehäuseoberteil 19. Jeweils die Kraft nur einer Gummi-Schub- Druckfeder 28 sorgt unter Zwischenschottung des Anpreßkeils 29 für die senkrechte belastungsabhängige Reibdämpfung, die zwischen Achslagergehäuseunterteil 20 und der senkrechten Reiblamelle 30 und zwischen dieser und dem Anpreßkeil entsteht. Durch die Drehbewegung der waagerechten Reiblamelle 26 und der beiden senkrechten Reiblamellen 30 um den Bolzen 27 und durch die seitliche Anlage der ringförmigen Reibflächen entsteht die belastungsabhängige Querdämpfung. Durch die aufeinander abgestimmten Elastizitäten und Dämpfungen in allen drei Richtungen ist es möglich, auch bei hohen Fahrgeschwindigkeiten bei einer Schwingungsisolation der Radsatzerregerkräfte am Achslagergehäuse einen stabilen Fahrzeuglauf zu erzielen.The vertical suspension is created by the upper rubber compression spring 24 and the lateral rubber thrust compression springs 28. For the longitudinal guidance and suspension, the pressure components of the rubber thrust compression spring 28 are used for the most part, while the transverse suspension and guidance are carried out by thrust components of the same rubber thrust compression springs 28. The load-dependent friction damping of the longitudinal movement arises between the horizontal friction plate 26 and the upper housing part 19. The force of only one rubber-thrust compression spring 28, with the pressure wedge 29 being partitioned between them, ensures the vertical load-dependent friction damping between the axle bearing housing lower part 20 and the vertical friction plate 30 and between this and the pressure wedge is created. The load-dependent transverse damping results from the rotary movement of the horizontal friction plate 26 and the two vertical friction plates 30 around the bolt 27 and from the lateral contact of the annular friction surfaces. The coordinated elasticities and damping in all three directions make it possible to achieve stable vehicle running even at high driving speeds with vibration isolation of the wheel set excitation forces on the axle bearing housing.

Claims (3)

  1. High-speed bogie for railway wagons, having axle box housings, a twistable H-shaped frame, a bolster which is coupled thereto in a Z-shaped and virtually longitudinally rigid manner and has a lateral support and adjustable pendulums, combined guiding and suspension elements being arranged between the bogie frame and the upper part of the axle box housing and also the lower part of the axle box housing, the vertical suspension of which elements is progressive, the longitudinal spring rate being considerably greater than the lateral spring rate, characterized in that a friction lamella (26) is arranged between an upper part (19) of the axle box housing and a rubber compression spring (24) arranged vertically centrally above it, which friction lamella has an annular friction surface and is mounted at the end on a bolt (27), and in that, furthermore, a plurality of rubber thrust and compression springs (28) are situated, with partial interposition of a pressing wedge (29), on both sides of the upper part (19) of the axle box housing and a lower part (20) of the axle box housing, between which springs are arranged vertical friction lamellae (30) which have an annular support and are mounted at the end on a bolt (27), not all the rubber thrust and compression springs (28) being in operative connection with the vertical friction lamellae (30).
  2. High-speed bogie for railway wagons according to Claim 1, characterized in that a helical spring (10) has a progressively acting rubber auxiliary spring (11) in its centre, which auxiliary spring is operative only in the working range between the empty and the laden state, and in that the transverse distance between the helical springs (10) is greater than or equal to the transverse distance between the guiding, suspension and damping element (16) of the wheelsets (17), and in that the adjustable pendulums (13) are designed so as to be vertical or inclined outwards at the bottom.
  3. High-speed bogie for railway wagons according to Claims 1 and 2, characterized in that the central rubber compression spring (24) has a supporting bell (25) or a belt ring (25'), a spacing which increases from the common connection point of the rubber compression spring (24) and the supporting bell (25) towards the edge of the bell or the edge of the belt ring being provided between the rubber compression spring (24) and the supporting bell (25), and the supporting bell (25) or the belt ring (25') simultaneously serving as a vertical emergency stop, and in that, furthermore, the spring excursion in the longitudinal and transverse directions is limited by the housing cover (22) and the housing base (23) interacting with the stepped stops (33) and forms the horizontal emergency guide.
EP19940250051 1993-03-01 1994-03-01 High speed bogie for railway wagon Expired - Lifetime EP0613809B1 (en)

Applications Claiming Priority (2)

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DE4306848 1993-03-01
DE19934306848 DE4306848C2 (en) 1993-03-01 1993-03-01 High speed freight bogie

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EP0613809A1 EP0613809A1 (en) 1994-09-07
EP0613809B1 true EP0613809B1 (en) 1996-09-18

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Publication number Priority date Publication date Assignee Title
DE10032009A1 (en) * 2000-07-01 2002-01-10 Daimler Chrysler Ag Chassis of a rail vehicle
CA2768480A1 (en) 2009-07-16 2011-01-20 Siemens Ag Oesterreich Undercarriage frame for rail vehicles
CN102476643A (en) * 2010-11-22 2012-05-30 齐齐哈尔轨道交通装备有限责任公司 Railway vehicle steering frame and railway vehicle
DE102015205531B3 (en) * 2015-03-26 2016-07-21 Siemens Aktiengesellschaft Weighing bogie for a rail vehicle and rail vehicle
CN109591839B (en) * 2019-01-25 2023-09-29 西南交通大学 Primary suspension positioning device for bogie
CN110920656A (en) * 2019-12-20 2020-03-27 中车眉山车辆有限公司 Railway self-generating rapid wagon bogie

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US2299560A (en) * 1940-08-19 1942-10-20 Gen Steel Castings Corp Railway axle journal lateral motion device
DE938673C (en) * 1943-02-27 1956-02-02 Elvio Filippini Flexible connection between the weighing beam of a vehicle chassis and the chassis
NL208391A (en) * 1954-06-05
CH387684A (en) * 1960-08-25 1965-02-15 Reunis Sa Ateliers Air suspension bogie
GB1509431A (en) * 1974-04-03 1978-05-04 Paton H Vehicle suspension
DD125031A3 (en) * 1975-06-26 1977-03-30
DE2710983C2 (en) * 1977-03-14 1985-11-21 Waggon Union Gmbh, 1000 Berlin Und 5900 Siegen Bogie for fast moving rail vehicles
US4674413A (en) * 1983-11-09 1987-06-23 The Budd Company Truck for a railway car
DE3918300A1 (en) * 1989-06-05 1990-12-06 Waggon Union Gmbh BOG FOR FAST-SPEED RAIL VEHICLES
DE4122741A1 (en) * 1991-07-10 1993-01-14 Waggon Union Gmbh BOG FOR FAST-SPEED RAIL VEHICLES

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ES2092375T3 (en) 1996-11-16
DE4306848A1 (en) 1994-09-08
EP0613809A1 (en) 1994-09-07

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