EP0048193A1 - Suspension device for railway vehicles - Google Patents

Suspension device for railway vehicles Download PDF

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Publication number
EP0048193A1
EP0048193A1 EP81401345A EP81401345A EP0048193A1 EP 0048193 A1 EP0048193 A1 EP 0048193A1 EP 81401345 A EP81401345 A EP 81401345A EP 81401345 A EP81401345 A EP 81401345A EP 0048193 A1 EP0048193 A1 EP 0048193A1
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EP
European Patent Office
Prior art keywords
axle
axle box
rings
guard plates
arrangement according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP81401345A
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German (de)
French (fr)
Inventor
Gérard Prevost
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SNCF Mobilites
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SNCF Mobilites
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Publication of EP0048193A1 publication Critical patent/EP0048193A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL 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
    • B61F5/00—Constructional 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
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs

Definitions

  • the invention relates to a suspension arrangement for railway vehicles (in particular for freight wagons), comprising, for each axle, springs supported by the axle boxes and connected by their free end to the chassis to be suspended (chassis of axle wagon or bogie chassis) by oblique articulated rings each surrounding a lower articulation axis secured to the chassis to be suspended and an upper articulation axis supported by the corresponding spring, the arrangement being designed so that the distance, counted horizontally, between the upper articulation axis of each connecting ring and the axle axis is constant, each axle box being framed - with longitudinal play - by a pair of guard plates.
  • Axles of the indicated type are also known, equipped with leaf springs, ensuring both suspension and damping.
  • the axle boxes are not pressed against their guard plates. If such axles have good steerability, their stability leaves something to be desired. In addition, their amortization is often insufficient.
  • the invention aims to remedy these drawbacks and allow the realization of a suspension combining stability and orientability while benefiting from satisfactory damping.
  • each box axle is provided with at least one pair of oblique connecting rings (these rings can be replaced by any equivalent member; for example connecting rods or struts, or else double rings of the type prescribed by the International Union of Railways) arranged symmetrically on either side of the axle, the angles made by these two rings with the vertical being however slightly different, while the axle box rests at rest with a certain force (dependent of the difference of said angles) against one of the guard plates.
  • these rings can be replaced by any equivalent member; for example connecting rods or struts, or else double rings of the type prescribed by the International Union of railways
  • This force is equal to the result, in longitudinal direction, of the horizontal components of the forces exerted on the connecting rings due to the weight of the suspended chassis; it is not zero, thanks to the difference in obliquity given to the rings, and has the effect of pushing the axle boxes against the guard plates located on one side of the axle.
  • This force defines a threshold below which the axle is stable and beyond which the axle is steerable by displacement of the axle boxes in their casing. The latter case occurs in curves of small radius where the orientation forces of which the axle is the seat exceed said threshold, so that the axle can be placed in the radial direction in such curves. When these forces decrease below the threshold, the axle regains its stability.
  • each axle box for each axle box are provided two helical suspension springs of vertical axis, located substantially symmetrically on either side of the axle, the free end each of them being capped with a cap which carries the upper articulation axis of the corresponding connecting ring and presses with a horizontal thrust force on a friction lining of vertical plane in contact with a friction lining carried by the axle box, the whole axle box and friction linings being interposed - with said clearance - between the guard plates.
  • the friction lining cooperating with that of the axle box is carried by a push rod sliding through the guard plate. corresponding, on which the pushing force of the spring cap is exerted.
  • a single leaf suspension spring is provided for each axle box, at each end of which is fixed the upper articulation axis of the ring corresponding connection, and the contact surfaces of the axle box and the guard plates are provided with friction linings.
  • friction linings like those provided in the aforementioned case of a suspension with helical springs, have the effect of ensuring the damping of the suspension both in the vertical direction and in the transverse direction and thereby imparting good vehicle stability.
  • the damping of an axle suspended by leaf springs is improved.
  • Each axle box can be mounted in the center of its leaf spring, the position of the guard plates being slightly offset from that of the lower articulation axes of the connecting rings, so as to produce an asymmetrical assembly in which the axle box is pressed at rest against a guard plate.
  • the same result can also be obtained by slightly shifting each axle box relative to the center of its leaf spring, on the side where it must rest at rest against a guard plate. All these offsets are of course carried out identically on either side of the longitudinal plane of symmetry of the vehicle.
  • Figure 1 shows a side view of a bogie axle with a suspension arrangement according to the invention, equipped with helical springs, the corresponding wheel being omitted.
  • FIG. 2 schematically represents, in the manner of FIG. 1, a single axle provided with a suspension arrangement according to the invention equipped with leaf springs.
  • FIG. 3 represents an alternative embodiment of the arrangement of FIG. 2.
  • the chassis 1 of a rail vehicle bogie is suspended by means of pairs of springs 3 bearing on consoles 4 forming a body in the usual manner with the boxes d axle 5, unsprung components.
  • the chassis 1 carries guard plates 6.
  • the forces P applied by the chassis 1 to the springs 3 correspond to the forces F ' 1 , F' 2 oriented in the respective direction of the connecting rings 11, that is to say straight lines D 1 , D 2 joining their axes. articulation 12,13, and horizontal forces F 1 , F 2 pressing the pushers 9 and their linings 7 against the runners 8 of the axle box 5 and thus ensuring a damping proportional to the load, both in the vertical direction than transverse, parallel to the plane V.
  • angles 0 and ⁇ made by the lines D 1 and D 2 with the vertical are made different by a slightly asymmetrical construction.
  • ⁇ is greater than ⁇ , so that F i is larger as F 2. It follows that the axle box 5 is pushed to the left with a force equal to F 1 -F 2 , while a clearance J appears on the right between the lining 7 and the guard plate 6 .
  • FIG. 2 shows the case of a simple axle 2 supporting, with another similar axle, the chassis 1 of a wagon, by means of leaf springs 15. At the ends of each of these are fixed axes of upper articulation 12 connected by oblique rings 11 to lower articulation axes 13 secured to the chassis 1 by means of parts 14.
  • the straight lines D 1 , D 2 will no longer compete below the axle 2 (as in Figure 1), but above the latter.
  • the axes 13 are mutually more distant than the axes 12 and the forces F 1 , F 2 are no longer directed towards the plane V, but on the opposite side.
  • each of the pairs of rings 11 can be split. This is the case of the example of Figure 1, where each cap 10 is provided with two rings 11 located on either side of the spring 3, one of them not being visible in the figure.

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

Abstract

The invention relates to a suspension device for railway vehicles. In such a device, comprising, at each end of an axle (2), two helical springs (3) resting on brackets (4) which are solidly fixed to the axle box (5), and supporting caps (10) which, via articulated oblique rings (11) and members (14), support the suspended chassis (1), the angles ( alpha ,ss) formed by the rings (11) relative to the vertical being different, so that the axle box (5) is caused to bear on one of the guard plates (6) with a force F1-F2. Application to the production of suspended axles combining stability with orientability. <IMAGE>

Description

L'invention se rapporte à un agencement de suspension pour véhicules ferroviaires (en particulier pour wagons de marchandises), comprenant, pour chaque essieu, des ressorts soutenus par les boites d'essieu et reliés par leur extrémité libre au châssis à suspendre (châssis de wagon à essieux ou châssis de bogie) par des anneaux articulés obliques entourant chacun un axe d'articulation inférieur solidaire du châssis à suspendre et un axe d'articulation supérieur supporté par le ressort correspondant, l'agencement étant conçu pour que la distance, comptée horizontalement, entre l'axe d'articulation supérieur de chaque anneau de liaison et l'axe de l'essieu soit constante, chaque boite d'essieu étant encadrée - avec jeu longitudinal - par une paire de plaques de garde.The invention relates to a suspension arrangement for railway vehicles (in particular for freight wagons), comprising, for each axle, springs supported by the axle boxes and connected by their free end to the chassis to be suspended (chassis of axle wagon or bogie chassis) by oblique articulated rings each surrounding a lower articulation axis secured to the chassis to be suspended and an upper articulation axis supported by the corresponding spring, the arrangement being designed so that the distance, counted horizontally, between the upper articulation axis of each connecting ring and the axle axis is constant, each axle box being framed - with longitudinal play - by a pair of guard plates.

On connaît de tels agencements de suspension équipés de ressorts hélicoïdaux avec dispositifs d'amortissement à friction, dans lesquels l'essieu est appliqué en permanence, au niveau de chaque boîte, contre une plaque de garde par la force horizontale engendrée par une paire d'anneaux de liaison obliques situés d'un même côté de l'essieu. Un tel essieu offre de ce fait une excellente stabilité, mais souffre d'un manque d'orientabilitê, de sorte qu'à l'attaque d'une courbe l'essieu a tendance à rester perpendiculaire à l'axe longitudinal du véhicule ou du bogie, ce qui affecte la qualité du guidage des roues et constitue, dans des cas extrêmes, un risque de déraillement.There are known such suspension arrangements equipped with helical springs with friction damping devices, in which the axle is permanently applied, at the level of each box, against a guard plate by the horizontal force generated by a pair of oblique link rings located on the same side of the axle. Such an axle therefore offers excellent stability, but suffers from a lack of orientability, so that when attacking a curve the axle tends to remain perpendicular to the longitudinal axis of the vehicle or of the bogie, which affects the quality of the wheel guidance and constitutes, in extreme cases, a risk of derailment.

On connaît également des essieux du genre indiqué équipés de ressorts à lames, assurant à la fois la suspension et l'amortissement. Les boîtes d'essieu ne sont pas appliquées contre leurs plaques de garde. Si de tels essieux présentent une bonne orientabilité, leur stabilité laisse désirer. De plus, leur amortissement se révèle souvent insuffisant.Axles of the indicated type are also known, equipped with leaf springs, ensuring both suspension and damping. The axle boxes are not pressed against their guard plates. If such axles have good steerability, their stability leaves something to be desired. In addition, their amortization is often insufficient.

L'invention a pour but de remédier à ces inconvénients et de permettre la réalisation d'une suspension alliant stabilité et orientabilité tout en bénéficiant d'un amortissement satisfaisant.The invention aims to remedy these drawbacks and allow the realization of a suspension combining stability and orientability while benefiting from satisfactory damping.

A cet effet, selon l'invention, pour chaque boite d'essieu est prévue au moins une paire d'anneaux obliques de liaison (ces anneaux peuvent être remplacés par tout organe équivalent; par exemple des bielles ou des chandelles de suspension, ou bien des doubles anneaux du type prescrit par l'Union Internationale des Chemins de Fer) disposés symétriquement de part et d'autre de l'essieu, les angles que font ces deux anneaux avec la verticale étant toutefois légèrement différents, tandis que la boite d'essieu s'appuie au repos avec une certaine force (dépendant de la différence desdits angles) contre l'une des plaques de garde. Cette force est égale à la résultante, de direction longitudinale, des composantes horizontales des forces qui s'exercent sur les anneaux de liaison en raison du poids du châssis suspendu; elle n'est pas nulle, grâce à la différence d'obliquité donnée aux anneaux, et a pour effet de repousser les boites d'essieu contre les plaques de garde situées d'un côté de l'essieu. Cette force définit un seuil en deça duquel l'essieu est stable et au delà duquel l'essieu est orientable par déplacement des boîtes d'essieu dans leur encagement. Ce dernier cas se produit dans les courbes de faible rayon où les efforts d'orientation dont l'essieu est le siège dépassent ledit seuil, de sorte que l'essieu peut se placer en direction radiale dans de telles courbes. Quand ces efforts décroissent au-dessous du seuil, l'essieu recouvre sa stabilité.To this end, according to the invention, for each box axle is provided with at least one pair of oblique connecting rings (these rings can be replaced by any equivalent member; for example connecting rods or struts, or else double rings of the type prescribed by the International Union of Railways) arranged symmetrically on either side of the axle, the angles made by these two rings with the vertical being however slightly different, while the axle box rests at rest with a certain force (dependent of the difference of said angles) against one of the guard plates. This force is equal to the result, in longitudinal direction, of the horizontal components of the forces exerted on the connecting rings due to the weight of the suspended chassis; it is not zero, thanks to the difference in obliquity given to the rings, and has the effect of pushing the axle boxes against the guard plates located on one side of the axle. This force defines a threshold below which the axle is stable and beyond which the axle is steerable by displacement of the axle boxes in their casing. The latter case occurs in curves of small radius where the orientation forces of which the axle is the seat exceed said threshold, so that the axle can be placed in the radial direction in such curves. When these forces decrease below the threshold, the axle regains its stability.

Dans une forme d'exécution préférée relative à une suspension à ressorts hélicoïdaux, pour chaque boite d'essieu sontprévus deux ressorts de suspension hélicoïdaux d'axe vertical, situés sensiblement symétriquement de part et d'autre de l'essieu, l'extrémité libre de chacun d'eux étant coiffée d'un chapeau qui porte l'axe d'articulation supérieur de l'anneau de liaison correspondant et appuie suivant une force de poussée horizontale sur une garniture de friction de plan vertical en contact avec une garniture de friction portée par la boite d'essieu, l'ensemble de la boite d'essieu et des garnitures de friction étant interposé - avec ledit jeu - entre les plaques de garde. De préférence, la garniture de friction coopérant avec celle de la boite d'essieu est portée par un poussoir coulissant à travers la plaque de garde correspondante, sur lequel s'exerce la force de poussée du chapeau du ressort.In a preferred embodiment relating to a suspension with helical springs, for each axle box are provided two helical suspension springs of vertical axis, located substantially symmetrically on either side of the axle, the free end each of them being capped with a cap which carries the upper articulation axis of the corresponding connecting ring and presses with a horizontal thrust force on a friction lining of vertical plane in contact with a friction lining carried by the axle box, the whole axle box and friction linings being interposed - with said clearance - between the guard plates. Preferably, the friction lining cooperating with that of the axle box is carried by a push rod sliding through the guard plate. corresponding, on which the pushing force of the spring cap is exerted.

Dans une forme d'exécution préférée relative à une suspension équipée de ressorts à lames, pour chaque boite d'essieu est prévu un unique ressort de suspension à lames, à chaque extrémité duquel est fixé l'axe d'articulation supérieur de l'anneau de liaison correspondant, et les surfaces en contact de la boite d'essieu et des plaques de garde sont dotées de garnitures de friction.In a preferred embodiment relating to a suspension fitted with leaf springs, a single leaf suspension spring is provided for each axle box, at each end of which is fixed the upper articulation axis of the ring corresponding connection, and the contact surfaces of the axle box and the guard plates are provided with friction linings.

Ces garnitures de friction, comme celles qui sont prévues dans le cas précité d'une suspension à ressorts hélicoïdaux, ont pour effet d'assurer l'amortissement de la suspension tant en direction verticale qu'en direction transversale et de conférer par là une bonne stabilité de marche au véhicule. L'amortissement d'un essieu suspendu par ressorts à lames s'en trouve amélioré.These friction linings, like those provided in the aforementioned case of a suspension with helical springs, have the effect of ensuring the damping of the suspension both in the vertical direction and in the transverse direction and thereby imparting good vehicle stability. The damping of an axle suspended by leaf springs is improved.

Chaque boîte d'essieu peut être montée au centre de son ressort à lames, la position des plaques de garde étant légèrement décalée par rapport à celle des axes d'articulation inférieurs des anneaux de liaison, de manière à réaliser un ensemble dissymétrique dans lequel la boîte d'essieu se trouve pressée au repos contre une plaque de garde. Le même résultat peut aussi être obtenu en décalant légèrement chaque boite d'essieu par rapport au centre de son ressort à lames, du côté où elle doit s'appuyer au repos contre une plaque de garde. Tous ces décalages sont effectués bien entendu identiquement de part et d'autre du plan de symétrie longitudinal du véhicule.Each axle box can be mounted in the center of its leaf spring, the position of the guard plates being slightly offset from that of the lower articulation axes of the connecting rings, so as to produce an asymmetrical assembly in which the axle box is pressed at rest against a guard plate. The same result can also be obtained by slightly shifting each axle box relative to the center of its leaf spring, on the side where it must rest at rest against a guard plate. All these offsets are of course carried out identically on either side of the longitudinal plane of symmetry of the vehicle.

La description qui va suivre, en regard des dessins annexés à titre d'exemples non limitatifs, permettra de bien comprendre comment l'invention peut être mise en pratique.The description which follows, with reference to the accompanying drawings by way of nonlimiting examples, will make it possible to understand clearly how the invention can be put into practice.

La figure 1 représente en vue latérale un essieu de bogie doté d'un agencement de suspension selon l'invention, équipé de ressorts hélicoïdaux, la roue correspondante étant supprimée.Figure 1 shows a side view of a bogie axle with a suspension arrangement according to the invention, equipped with helical springs, the corresponding wheel being omitted.

La figure 2 représente schématiquement, à la manière de la figure 1, un essieu simple doté d'un agencement de suspension selon l'invention équipé de ressorts à lames .FIG. 2 schematically represents, in the manner of FIG. 1, a single axle provided with a suspension arrangement according to the invention equipped with leaf springs.

La figure 3 représente une variante d'exécution de l'agencement de la figure 2.FIG. 3 represents an alternative embodiment of the arrangement of FIG. 2.

Dans l'exemple d'exécution illustré à la figure 1, le châssis 1 d'un bogie de véhicule ferroviaire est suspendu par l'intermédiaire de paires de ressorts 3 prenant appui sur des consoles 4 faisant corps à la manière habituelle avec les boîtes d'essieu 5, organes non suspendus. Le châssis 1 porte des plaques de garde 6.In the exemplary embodiment illustrated in FIG. 1, the chassis 1 of a rail vehicle bogie is suspended by means of pairs of springs 3 bearing on consoles 4 forming a body in the usual manner with the boxes d axle 5, unsprung components. The chassis 1 carries guard plates 6.

D'un même côté de l'axe longitudinal de l'essieu 2 centré dans les boites 5 et symétriquement par rapport au plan vertical V passant par cet axe, des frottoirs mobiles 7 prennent appui sur les glissières 8 de ces boites d'essieu. Lesdits frottoirs mobiles sont portés par des poussoirs 9 soumis à l'action de chapeaux 10 montés sur les ressorts 3, lesdits chapeaux étant reliés par des anneaux indéformables 11, en prise avec des axes d'articulation supérieurs 12 solidaires de ces chapeaux, à des axes d'articulation inférieurs 13 portés par des pièces 14 solidaires du châssis 1. Ces pièces 14 prennent appui sur les ressorts 3 par l'intermédiaire des anneaux 11 et des chapeaux 10.On the same side of the longitudinal axis of the axle 2 centered in the boxes 5 and symmetrically with respect to the vertical plane V passing through this axis, movable rubbers 7 bear on the slides 8 of these axle boxes. Said movable wipers are carried by pushers 9 subjected to the action of caps 10 mounted on the springs 3, said caps being connected by non-deformable rings 11, engaged with upper articulation pins 12 integral with these caps, to lower articulation axes 13 carried by parts 14 integral with the chassis 1. These parts 14 bear on the springs 3 by means of the rings 11 and the caps 10.

Aux forces P appliquées par le châssis 1 sur les ressorts 3 correspondent des forces F'1,F'2 orientées suivant la direction respective des anneaux de liaison 11, c'est-à-dire des droites D1,D2 joignant leurs axes d'articulation 12,13, et des forces horizontales F1,F2 pressant les poussoirs 9 et leurs garnitures 7 contre les glissières 8 de la boite d'essieu 5 et assurant ainsi un amortissement proportionnel à la charge, aussi bien en direction verticale que transversale, parallèlement au plan V.The forces P applied by the chassis 1 to the springs 3 correspond to the forces F ' 1 , F' 2 oriented in the respective direction of the connecting rings 11, that is to say straight lines D 1 , D 2 joining their axes. articulation 12,13, and horizontal forces F 1 , F 2 pressing the pushers 9 and their linings 7 against the runners 8 of the axle box 5 and thus ensuring a damping proportional to the load, both in the vertical direction than transverse, parallel to the plane V.

Les angles 0( et β que font les droites D1 et D2 avec la verticale sont rendus différents par une construction légèrement dissymétrique. Dans l'exemple de la figure 1, α est supérieur à β, de sorte que Fi est plus grand que F2. Il en résulte que la boîte d'essieu 5 se trouve repoussée vers la gauche avec une force égale a F1-F2, alors qu'apparaît un jeu J à droite entre la garniture 7 et la plaque de garde 6.The angles 0 (and β made by the lines D 1 and D 2 with the vertical are made different by a slightly asymmetrical construction. In the example in Figure 1, α is greater than β, so that F i is larger as F 2. It follows that the axle box 5 is pushed to the left with a force equal to F 1 -F 2 , while a clearance J appears on the right between the lining 7 and the guard plate 6 .

Dans ces conditicns, lorsque le véhicule se déplace sur voie en alignement ou en courbe de grand rayon, les efforts d'orientation s'exerçant sur l'essieu 2 sont faibles, inférieurs à F1-F2 et celui-ci se trouve appliqué de manière stable contre les plaques de garde 6 de gauche, comme représenté. Lorsque le véhicule aborde une courbe plus sévère, ces efforts croissent et dépassent le seuil F1-F2. L'essieu offre alors une orientabilité entre les plaques de garde 6, grâce au jeu J, ce qui lui permet de prendre correctement la courbe.In these conditions, when the vehicle is moving on track in alignment or in a large radius curve, the orientation forces exerted on the axle 2 are weak, less than F 1 -F 2 and this is applied stably against the guard plates 6 on the left, as shown. When the vehicle approaches a more severe curve, these forces increase and exceed the threshold F 1 -F 2 . The axle then offers orientability between the guard plates 6, thanks to the clearance J, which allows it to correctly take the curve.

La figure 2 montre le cas d'un essieu 2 simple supportant, avec un autre essieu semblable, le châssis 1 d'un wagon, par l'intermédiaire de ressorts à lames 15. Aux extrémités de chacun de ceux-ci sont fixés des axes d'articulation supérieurs 12 reliés par des anneaux obliques 11 à des axes d'articulation inférieurs 13 solidaires du châssis 1 par l'intermédiaire de pièces 14. Ici, les droites D1,D2 ne vont plus concourir au-dessous de l'essieu 2 (cas de la figure 1), mais au-dessus de ce dernier. Les axes 13 sont mutuellement plus distants que les axes 12 et les forces F1,F2 sont dirigées non plus vers le plan V, mais à l'opposé.FIG. 2 shows the case of a simple axle 2 supporting, with another similar axle, the chassis 1 of a wagon, by means of leaf springs 15. At the ends of each of these are fixed axes of upper articulation 12 connected by oblique rings 11 to lower articulation axes 13 secured to the chassis 1 by means of parts 14. Here, the straight lines D 1 , D 2 will no longer compete below the axle 2 (as in Figure 1), but above the latter. The axes 13 are mutually more distant than the axes 12 and the forces F 1 , F 2 are no longer directed towards the plane V, but on the opposite side.

On rend alors β inférieur à α de manière que F2 soit supérieur à F1 et que la boîte d'essieu 5 soit appliquée, au repos, par une force F2-F1 contre celle de gauche des plaques de garde 6 qui l'encadrent. Cette condition est réalisée dans le présent exemple grâce à un léger décalage donné vers la droite aux plaques de garde 6 par rapport aux axes d'articulation inférieurs 13 (b > a).We then make β less than α so that F 2 is greater than F 1 and the axle box 5 is applied, at rest, by a force F 2 -F 1 against that on the left of the guard plates 6 which l 'frame. This condition is achieved in the present example thanks to a slight offset given to the right to the guard plates 6 with respect to the lower articulation axes 13 (b> a).

Dans le cas de la figure 3, la même condition (α > β) est obtenue par décalage vers la gauche de chaque boite d'essieu 5, qui se trouve fixée non plus au centre du ressort 15 correspondant, mais légèrement déportée d'une quantité d par rapport au centre dudit ressort, les distances a et b étant ici, comme d'ordinaire, égales.In the case of FIG. 3, the same condition (α> β) is obtained by shifting to the left of each axle box 5, which is no longer fixed at the center of the corresponding spring 15, but slightly offset by a quantity d relative to the center of said spring, the distances a and b being here, as usual, equal.

La solution de la figure 3 peut être plus aisément appliquée à des wagons existants que celle de la figure 2; elle présente toutefois l'inconvénient de faire travailler non symétriquement les ressorts 15.The solution of Figure 3 can be more easily applied to existing wagons than that of Figure 2; however, it has the drawback of causing the springs 15 to work non-symmetrically.

L'exemple de la figure 1 peut également s'appliquer à la suspension de véhicules à essieux. De même, les exemples des figures 2 et 3 peuvent s'appliquer à la suspension de bogies.The example in Figure 1 can also be applied to the suspension of axle vehicles. Similarly, the examples of Figures 2 and 3 can be applied to the suspension of bogies.

D'une manière générale, chacune des paires d'anneaux 11 peut être dédoublée. C'est le cas de l'exemple de la figure 1, où chaque chapeau 10 est muni de deux anneaux 11 situés de part et d'autre du ressort 3, l'un d'eux n'étant pas visible sur la figure.In general, each of the pairs of rings 11 can be split. This is the case of the example of Figure 1, where each cap 10 is provided with two rings 11 located on either side of the spring 3, one of them not being visible in the figure.

Claims (6)

1.- Agencement de suspension pour véhicules ferroviaires, comprenant, pour chaque essieu, des ressorts soutenus par les boîtes d'essieu et reliés par leur extrémité libre au châssis à suspendre par des anneaux articulés obliques entourant chacun un axe d'articulation inférieur solidaire du châssis à suspendre et un axe d'articulation supérieur supporté par le ressort correspondant, l'agencement étant conçu pour que la distance, comptée horizontalement, entre l'axe d'articulation supérieur de chaque anneau de liaison et l'axe de l'essieu soit constante, chaque boite d'essieu étant encadrée - avec jeu longitudinal - par une paire de plaques de garde, caractérisé par le fait que pour chaque boite d'essieu (5) est prévue au moins une paire d'anneaux obliques (11) de liaison disposés symétriquement de part et d'autre de l'essieu (2), les angles (α,β) que font les deux anneaux (11) avec la verticale étant toutefois légèrement différents, tandis que la boîte d'essieu (5) s'appuie au repos avec une certaine force contre l'une des plaques de garde 6).1.- Suspension arrangement for railway vehicles, comprising, for each axle, springs supported by the axle boxes and connected by their free end to the chassis to be suspended by oblique articulated rings each surrounding a lower articulation axis integral with the chassis to be suspended and an upper articulation axis supported by the corresponding spring, the arrangement being designed so that the distance, counted horizontally, between the upper articulation axis of each connecting ring and the axle axis is constant, each axle box being framed - with longitudinal play - by a pair of guard plates, characterized in that for each axle box (5) is provided at least one pair of oblique rings (11) of connection arranged symmetrically on either side of the axle (2), the angles (α, β) made by the two rings (11) with the vertical being however slightly different, while the axle box (5 ) rests at rest with c a certain force against one of the guard plates 6). 2.- Agencement selon la revendication 1, caractérisé par le fait que pour chaque boite d'essieu (5) sont prévus deux ressorts de suspension hélicoïdaux (3) d'axe vertical, situés sensiblement symétriquement de part et d'autre de l'essieu (2), l'extrémité libre de chacun d'eux étant coiffée d'un chapeau (10) qui porte l'axe d'articulation supérieur (12) de l'anneau de liaison (11) correspondant et appuie suivant une force de poussée horizontale sur une garniture de friction (7) de plan vertical en contact avec une garniture de friction (8) portée par la boite d'essieu (5), l'ensemble de la boîte d'essieu (5) et des garnitures de friction (7,8) étant interposé - avec ledit jeu (J) - entre les plaques de garde (6).2.- Arrangement according to claim 1, characterized in that for each axle box (5) are provided two helical suspension springs (3) of vertical axis, located substantially symmetrically on either side of the axle (2), the free end of each of them being capped with a cap (10) which carries the upper articulation axis (12) of the corresponding connecting ring (11) and presses with force horizontal thrust on a friction lining (7) with a vertical plane in contact with a friction lining (8) carried by the axle box (5), the entire axle box (5) and linings friction (7,8) being interposed - with said clearance (J) - between the guard plates (6). 3.- Agencement selon la revendication 2, caractérisé par le fait que la garniture de friction (7) coopérant avec celle de la boîte d'essieu (5) est portée par un poussoir. (9) coulissant sur lequel s'exerce la force de poussée du chapeau (10) du ressort (3).3.- Arrangement according to claim 2, characterized in that the friction lining (7) cooperating with that of the axle box (5) is carried by a pusher. (9) sliding on which is exerted the pushing force of the cap (10) of the spring (3). 4.- Agencement selon la revendication 1, caractérisé par le fait que pour chaque boite d'essieu (5) est prévu un unique ressort de suspension à lames (15), à chaque extrémité duquel est fixé l'axe d'articulation supérieur (12) de l'anneau de liaison (11) correspondant, et que les surfaces en contact de la boite d'essieu (5) et des plaques de garde (6) sont dotées de garnitures de friction.4.- Arrangement according to claim 1, characterized in that for each axle box (5) is provided a single leaf suspension spring (15), at each end of which is fixed the upper articulation axis ( 12) of the corresponding connecting ring (11), and that the surfaces in contact with the axle box (5) and the guard plates (6) are provided with friction linings. 5.- Agencement selon la revendication 4, caractérisé par le fait que chaque boîte d'essieu (5) est montée au centre de son ressort à lames (15), la position des plaques de garde (6) étant légèrement décalée par rapport à celle des axes d'articulation inférieurs (13) des anneaux de liaison (11).5.- Arrangement according to claim 4, characterized in that each axle box (5) is mounted in the center of its leaf spring (15), the position of the guard plates (6) being slightly offset from that of the lower articulation axes (13) of the connecting rings (11). 6.- Agencement selon la revendication 4, caractérisé par le fait que chaque boite d'essieu (5) est légèrement décalée par rapport au centre de son ressort à lames (15), du côté où elle doit s'appuyer au repos contre une plaque de garde (6).6.- Arrangement according to claim 4, characterized in that each axle box (5) is slightly offset from the center of its leaf spring (15), on the side where it must rest at rest against a guard plate (6).
EP81401345A 1980-09-17 1981-08-27 Suspension device for railway vehicles Withdrawn EP0048193A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8020022 1980-09-17
FR8020022A FR2490172A1 (en) 1980-09-17 1980-09-17 SUSPENSION ARRANGEMENT FOR RAILWAY VEHICLES

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EP0048193A1 true EP0048193A1 (en) 1982-03-24

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EP (1) EP0048193A1 (en)
FR (1) FR2490172A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811540A1 (en) * 1996-06-07 1997-12-10 Arbel Fauvet Rail S.A. Suspension for a railway vehicle
EP1097852A1 (en) * 1999-11-02 2001-05-09 KOCKUMS Industrier ABOLAG Bogie for railway freight wagons with radial self-steerable wheel-sets
DE10032009A1 (en) * 2000-07-01 2002-01-10 Daimler Chrysler Ag Chassis of a rail vehicle
GB2422588A (en) * 2003-05-20 2006-08-02 English Welsh & Scottish Railw Improvements in the track friendliness of a Y25 bogie
WO2021158134A1 (en) * 2020-02-07 2021-08-12 Wagony Świdnica Sp. Z.O.O. Friction damper, particularly in bogie suspension system
WO2021158135A1 (en) * 2020-02-07 2021-08-12 Wagony Swidnica Sp. Z.O.O. Friction damper, particularly in bogie suspension system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102476642A (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

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FR427343A (en) * 1911-03-14 1911-08-01 Gaston Cumenge Suspension system for railroad cars and other vehicles
FR1072207A (en) * 1951-12-25 1954-09-09 Siegener Eisenbahnbedarf Ag Device for obtaining a step without rotary oscillations in rail vehicles with at least four axles
US2774312A (en) * 1952-07-29 1956-12-18 Transit Res Corp Pedestal guide assembly
FR1256132A (en) * 1960-02-03 1961-03-17 Sncf Method and device for damping elastic suspensions and their applications
BE726495A (en) * 1968-03-05 1969-06-16
GB1240914A (en) * 1969-10-30 1971-07-28 Midland Ross Corp Railway car truck
US3926127A (en) * 1973-12-18 1975-12-16 Sumitomo Metal Ind Railway axle friction snubber assembly
EP0035443A1 (en) * 1980-02-29 1981-09-09 USINES ET ACIERIES DE SAMBRE ET MEUSE Société Anonyme Chassis suspension on at least two axles of a railway vehicle, and chassis provided with this suspension

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BE795115A (en) * 1972-02-10 1973-05-29 Talbot Waggonfab TRACK VEHICLE BOGGIE

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR427343A (en) * 1911-03-14 1911-08-01 Gaston Cumenge Suspension system for railroad cars and other vehicles
FR1072207A (en) * 1951-12-25 1954-09-09 Siegener Eisenbahnbedarf Ag Device for obtaining a step without rotary oscillations in rail vehicles with at least four axles
US2774312A (en) * 1952-07-29 1956-12-18 Transit Res Corp Pedestal guide assembly
FR1256132A (en) * 1960-02-03 1961-03-17 Sncf Method and device for damping elastic suspensions and their applications
FR77428E (en) * 1960-02-03 1962-03-02 Method and device for damping elastic suspensions and their applications
FR82179E (en) * 1960-02-03 1964-01-04 Method and device for damping elastic suspensions and their applications
BE726495A (en) * 1968-03-05 1969-06-16
GB1240914A (en) * 1969-10-30 1971-07-28 Midland Ross Corp Railway car truck
US3926127A (en) * 1973-12-18 1975-12-16 Sumitomo Metal Ind Railway axle friction snubber assembly
EP0035443A1 (en) * 1980-02-29 1981-09-09 USINES ET ACIERIES DE SAMBRE ET MEUSE Société Anonyme Chassis suspension on at least two axles of a railway vehicle, and chassis provided with this suspension

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811540A1 (en) * 1996-06-07 1997-12-10 Arbel Fauvet Rail S.A. Suspension for a railway vehicle
FR2749556A1 (en) * 1996-06-07 1997-12-12 Arbel Fauvet Rail Sa SUSPENSION FOR RAILWAY VEHICLE
EP1097852A1 (en) * 1999-11-02 2001-05-09 KOCKUMS Industrier ABOLAG Bogie for railway freight wagons with radial self-steerable wheel-sets
DE10032009A1 (en) * 2000-07-01 2002-01-10 Daimler Chrysler Ag Chassis of a rail vehicle
GB2422588A (en) * 2003-05-20 2006-08-02 English Welsh & Scottish Railw Improvements in the track friendliness of a Y25 bogie
EP2065285A1 (en) * 2003-05-20 2009-06-03 English Welsh & Scottish Railway Holdings Limited Improvements in the track friendliness of the Y25 bogie
WO2021158134A1 (en) * 2020-02-07 2021-08-12 Wagony Świdnica Sp. Z.O.O. Friction damper, particularly in bogie suspension system
WO2021158135A1 (en) * 2020-02-07 2021-08-12 Wagony Swidnica Sp. Z.O.O. Friction damper, particularly in bogie suspension system

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