EP0082043A1 - Two-stage suspension device for a railway vehicle axle - Google Patents

Two-stage suspension device for a railway vehicle axle Download PDF

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Publication number
EP0082043A1
EP0082043A1 EP82402178A EP82402178A EP0082043A1 EP 0082043 A1 EP0082043 A1 EP 0082043A1 EP 82402178 A EP82402178 A EP 82402178A EP 82402178 A EP82402178 A EP 82402178A EP 0082043 A1 EP0082043 A1 EP 0082043A1
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EP
European Patent Office
Prior art keywords
suspension
axle
vehicle
elastic
boxes
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.)
Granted
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EP82402178A
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German (de)
French (fr)
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EP0082043B1 (en
Inventor
Guy Thomas
Robert Demptos
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Soule SA
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Soule SA
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Priority claimed from FR8123206A external-priority patent/FR2518038A1/en
Priority claimed from FR8218757A external-priority patent/FR2535663A2/en
Application filed by Soule SA filed Critical Soule SA
Priority to AT82402178T priority Critical patent/ATE18028T1/en
Publication of EP0082043A1 publication Critical patent/EP0082043A1/en
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Publication of EP0082043B1 publication Critical patent/EP0082043B1/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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • 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
    • B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs

Definitions

  • the lift and the guidance are produced by a single-stage suspension with guidance of the bearing box for each end of the axle.
  • This assembly therefore does not have a transverse suspension and, therefore, there is not only a level of frequency filtration between the axle and the body of the vehicle which causes very often sudden lateral movements therefore generating shocks.
  • the present invention relates to a device which applies to a rail vehicle comprising only two axles but which uses a primary suspension, a secondary suspension and a transverse suspension. So we can therefore, while maintaining the simplicity of mounting a two-axle vehicle, find the comfort of a rail vehicle mounted on bogies.
  • the device consists of two suspension stages, one connected directly to the bearing box by means of a lower longitudinal part on an intermediate spar which is supported by the other, the suspension secondary, bearing on prismatic boxes forming a stop, so as to give a slight inclination from bottom to top and in opposition to the members constituting the secondary suspension, moreover these boxes are connected directly to the chassis of the vehicle then the aforementioned intermediate beams are connected two by two by cross members arranged symmetrically with respect to the axis of the axle and thus forming a frame maintaining the geometry of the assembly and supporting the braking device.
  • the primary suspension rests directly on the rolling box by one of its ends and on prismatic boxes and inclined by its other end, these boxes being integral with an intermediate spar holding the part lower of the elements forming the vertical secondary suspension which is fixed by its upper end to the chassis of the vehicle, cross-members arranged symmetrically with respect to the axis of the axle forming a frame with the intermediate beams to ensure the correct geometry and holding the assembly and maintaining the braking device then, to ensure the drive of this construction, there are provided on one side thereof longitudinal control rods articulated on elastic ball joints integral with one of the intermediate beams and others from the vehicle chassis.
  • Fig. 1 is an elevation of a first embodiment of the two-stage suspension device for an axle of rail vehicles.
  • Fig. 2 is a plane corresponding to FIG. 1.
  • Fig. 3 is a sectional elevation substantially along line III-III of FIG. 4 of a second embodiment of the two-stage suspension for an axle of rail vehicles.
  • Fig. 4 is a plane corresponding to FIG. 3.
  • Fig. 5 is a side elevation of a suspension device for a two-wheeled axle for wagons according to the invention.
  • Fig. 6 is a top plan corresponding to FIG. 5.
  • Fig. 7 is a section substantially along the line VII-VII of FIG. 6.
  • a line 1 the chassis of a rail vehicle for example of a passenger car.
  • This chassis usually consists of two suitably braced beams.
  • the lower part of the side members of the chassis 1 carries at each of their ends boxes 2, 3 of prismatic shape whose front faces 2a, 3a are flat to form a stop intended to receive the end 4a of a cylinder 4 which are composite elements layered in sandwich rubber metal .
  • the above description shows that the geometry of the assembly is produced using the intermediate beams 6 and the crosspieces 7, 8 which form a rigid frame ensuring the geometry of the wheel set S12 considered and correct drive of the assembly .
  • the first suspension stage constituted by the suspension elements 15 absorbs a large number of vertical frequencies while the cylinders 4 absorb the longitudinal and transverse frequencies thus avoiding sudden lateral movements generating shocks.
  • the cross member 8 carries the braking device 20, the shoes 21 of which are seen near the tire of the wheels 12, 13.
  • This assembly is simple, compact and makes it possible to provide vehicles on rails and in particular passenger cars with comfort identical to the comfort obtained when using bogies each comprising two axles with two wheels. But the latter solution is much more expensive both in the production and in the maintenance of the equipment. In addition, the use of bogie vehicles very often causes an increase in energy expenditure.
  • axle described above can receive a drive axle for a vehicle of the light railcar type.
  • the engine reaction box is then secured to the body by means of elastic joints not shown.
  • the spacing of the cylinders 4 forming the secondary suspension is provided sufficient to ensure an anti-rearing torque to the frame composed of the intermediate beams 6 and of the cross members 7 and 8.
  • FIG. 3 shows an alternative embodiment of the two-stage suspension device in which the vehicle chassis is represented by the line 30, this chassis carrying at specific points two plates 31 on which rest the upper ends laughing springs 32 embedded in an elastic material 33 for example rubber.
  • the lower part of these mixed elastic elements 32, 33 rests on plates 34, 35 extending each intermediate spar 36 connected to the other symmetrical spar 36 by cross-members 37, 38 with round section arranged symmetrically with respect to the axis 39 of the axle 40 carrying the wheels 41,42.
  • Each intermediate beam 36 substantially takes the form of an inverted “U” which substantially covers the end parts of each axle 40 so that each bearing box 43 is disposed just below the transverse lower part 36a of each intermediate beam 36 in "U” overturned.
  • the branches 36b, 36c of the crosspiece 36 in an inverted “U” shape carry in their median zones, inner sides, boxes 138 on which bear elastic blocks 39 in chevrons of a type known per se, these elastic blocks resting on their other ends on the outer carcass 47 of the bearing box 43 receiving the end of the axle 40 considered.
  • the outer carcass 47 carries a flat 50 intended to cooperate with a stop 51 placed just above on the horizontal lower part of the intermediate spar 36 in an inverted "U” considered.
  • the drive of the axle is necessarily carried out in an artificial manner by two control rods 55 articulated at 56 on the end 36d of each intermediate spar 36 and on a base 57 secured to the underside of the chassis 30 of the vehicle.
  • the articulations of the connecting rods 55 are constituted by elastic ball joints 60, 61.
  • one of the crosspieces 38 carries the braking connecting rods 65 controlling the rotation of the brake pads 66 rubbing against the outer periphery of each of the wheels 41, 42.
  • the retaining frame constituted by the intermediate beams 36 and the crosspieces 37, 38 ensures the correct geometry and the strength of the assembly.
  • the secondary suspension can receive vertical and transverse hydraulic shock absorbers of a common type.
  • the vertical dampers placed at the right of each secondary suspension element are such that they can also dampen any galloping movements of the frame 36, 37, 38.
  • a line 100 the chassis of a rail vehicle, for example a passenger car.
  • This chassis normally consists of two beams suitably braced.
  • the lower part of the frame rails 1 carries at each of the ends of the boxes 102, 103 whose front face 102a, 103a is inclined substantially at 45 ° relative to the longitudinal axis X1, X2 of the car (see fig. 6) .
  • the aforementioned inclined faces 102a, 103a each carry a simple elastic element 104 of the same family as the bolsters, that is to say composite elements each consisting of at least one spring element, made of flexible deformable material, for example rubber treaty.
  • the four elements 106 form the vertical and transverse secondary suspension in a frame 107 consisting of intermediate beams 108 and cross members 109.
  • each axle 111 on which the wheels 112, 113 are mounted are supported by lower parts 114 of appropriate shape and which are connected to the intermediate beams 108 by suspension elements 115- 116 arranged vertically and which are fixed by their upper parts on supports 117-118 integral with the lower part of the intermediate beams 108.
  • each inclined face 102a, 103a of the boxes 102, 103 is disposed inclined on the vertical in a similar manner to the suspension members 106 and also inclined transversely so that the normal to the plane which it represents contributes to the fictitious center of rotation of the axle 111 thus formed.
  • each simple elastic element simulates a conical pivot portion of large diameter and the work of these elements is similar to that of an elastic pivot.
  • This device therefore generates the desired freedom of rotation and has the advantage of being able to allow, by dimensioning and choice of rubber, the precise determination of the elastic rotation torque.
  • the intermediate fixing element 102a, 104 allows the use, in this assembly, of separate elements so that the parts are easily interchangeable.
  • Another way to mount this element is to place it between the secondary suspension bolster 106 and the movable frame.
  • the first solution is preferred because it better places the sandwich sandwich elements 102a-104.

Abstract

1. Two stage suspension device for a railway vehicle simple axle constituted by two suspension stages of which one (primary suspension 15, 39) directly connects the bearing box (17) by means of a part of said box (16, 47) to an intermediary beam (6, 36) which is itself supported by the other stage (secondary suspension 4, 32, 33), which bears on supports directly connected to the vehicle body (1, 30), characterized in that the prementioned intermediary beams (6) are connected two by two by cross-beams (7, 8) symetrically placed with respect to the axis (10) of the axle (11) and thus making a rigid frame maintaining the geometry of the whole assembly, in that the primary suspension (15) is placed between the outer casing (16) of the bearing box (17) and the intermediary beam (6) in vertical direction and in that the supports for the secondary suspension (4) are formed by prismatic cases (2, 3) forming abutment, so as to give a small inclination from bottom to top and in opposition to the elements forming the secondary suspension.

Description

Souvent les véhicules sur rails traditionnels, en particulier les voitures de voyageurs, comportent seulement deux essieux pour assurer leur sustentation et leur guidage mais cette réalisation présente de graves inconvénients.Often the vehicles on traditional rails, in particular passenger cars, have only two axles to ensure their lift and their guidance but this realization has serious drawbacks.

En effet, la sustentation et le guidage sont réalisés par une suspension à un seul étage avec guidage de la boîte à roulements pour chaque extrémité de l'essieu. Ce montage ne comporte donc pas de suspension transversale et, de ce fait, il n'y a pas qu'un niveau de filtration des fréquences entre l'essieu et la caisse du véhicule ce qui provoque des mouvements latéraux très souvent brusques donc générateurs de chocs.In fact, the lift and the guidance are produced by a single-stage suspension with guidance of the bearing box for each end of the axle. This assembly therefore does not have a transverse suspension and, therefore, there is not only a level of frequency filtration between the axle and the body of the vehicle which causes very often sudden lateral movements therefore generating shocks.

C'est pourquoi les véhicules sur rails pour voyageurs utilisés pour de longs trajets sont équipés de boggies qui comportent, en partant du rail, une suspension primaire qui effectue un filtrage à un certain niveau de fréquence entre l'essieu et l'ossature du boggie, une suspension secondaire qui permet un deuxième niveau de filtrage pour d'autres fréquences entre l'ossature du boggie et la caisse du véhicule puis une suspension transversale assure finalement un mouvement latéral plus ou moins souple mais sans choc.This is why rail passenger vehicles used for long journeys are fitted with bogies which, starting from the rail, have a primary suspension which filters at a certain level of frequency between the axle and the bogie frame. , a secondary suspension which allows a second level of filtering for other frequencies between the frame of the bogie and the body of the vehicle then a transverse suspension finally ensures a more or less flexible lateral movement but without shock.

La présente invention se rapporte à un dispositif qui s'applique pour un véhicule sur rails ne comprenant que deux essieux mais qui utilise une suspension primaire, une suspension secondaire et une suspension tranversale. Ainsi on peut donc, en conservant la simplicité de montage d'un véhicule à deux essieux, retrouver le confort d'un véhicule sur rails monté sur boggies.The present invention relates to a device which applies to a rail vehicle comprising only two axles but which uses a primary suspension, a secondary suspension and a transverse suspension. So we can therefore, while maintaining the simplicity of mounting a two-axle vehicle, find the comfort of a rail vehicle mounted on bogies.

Conformément à l'invention, le dispositif est constitué par deux étages de suspension, l'un relié directement à la boîte à roulements par l'intermédiaire d'une pièce longitudinale inférieure sur un longeron intermédiaire qui est supporté par l'autre, la suspension secondaire, prenant appui sur des caissons prismatiques formant butée, de façon à donner une légère inclinaison de bas en haut et en opposition aux organes constituant la suspension secondaire,de plus ces caissons sont reliés directement au châssis du véhicule puis les longerons intermédiaires précités sont reliés deux à deux par des traverses disposées symétriquement par rapport à l'axe de l'essieu et formant ainsi un cadre maintenant la géométrie de l'ensemble et supportant le dispositif de freinage.According to the invention, the device consists of two suspension stages, one connected directly to the bearing box by means of a lower longitudinal part on an intermediate spar which is supported by the other, the suspension secondary, bearing on prismatic boxes forming a stop, so as to give a slight inclination from bottom to top and in opposition to the members constituting the secondary suspension, moreover these boxes are connected directly to the chassis of the vehicle then the aforementioned intermediate beams are connected two by two by cross members arranged symmetrically with respect to the axis of the axle and thus forming a frame maintaining the geometry of the assembly and supporting the braking device.

Suivant une autre caractéristique de l'invention, la suspension primaire repose directement sur la boîte à roulement par l'une de ses extrémités et sur des caissons prismatiques et inclinés par son autre extrémité, ces caissons étant solidaires d'un longeron intermédiaire maintenant la partie inférieure des éléments formant la suspension secondaire verticale qui est fixée par son extrémité supérieure sur le châssis du véhicule, des traverses disposées symétriquement par rapport à l'axe de l'essieu formant-un cadre avec les longerons intermédiaires pour assurer la bonne géométrie et la tenue de l'ensemble et le maintien du dispositif de freinage puis, pour assurer l'entraînement de cette construction, il est prévu sur un côté de celle-ci des bielles d'asservissement longitudinales articulées sur des rotules élastiques solidaires les unes des longerons intermédiaires et les autres du châssis du véhicule.According to another characteristic of the invention, the primary suspension rests directly on the rolling box by one of its ends and on prismatic boxes and inclined by its other end, these boxes being integral with an intermediate spar holding the part lower of the elements forming the vertical secondary suspension which is fixed by its upper end to the chassis of the vehicle, cross-members arranged symmetrically with respect to the axis of the axle forming a frame with the intermediate beams to ensure the correct geometry and holding the assembly and maintaining the braking device then, to ensure the drive of this construction, there are provided on one side thereof longitudinal control rods articulated on elastic ball joints integral with one of the intermediate beams and others from the vehicle chassis.

Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics of the invention will also emerge from the detailed description which follows.

Des formes de réalisation de l'objet de l'invention sont représentées, à titre d'exemples, aux dessins annexés.Embodiments of the object of the invention are shown, by way of examples, in the accompanying drawings.

La fig. 1 est une élévation d'une première forme de réalisation du dispositif de suspension à deux étages pour essieu de véhicules sur rails.Fig. 1 is an elevation of a first embodiment of the two-stage suspension device for an axle of rail vehicles.

La fig. 2 est un plan correspondant à la fig. 1.Fig. 2 is a plane corresponding to FIG. 1.

La fig. 3 est une élévation en coupe sensiblement suivant la ligne III-III de la fig. 4 d'une deuxième forme de réalisation de la suspension à deux étages pour essieu de véhicules sur rails.Fig. 3 is a sectional elevation substantially along line III-III of FIG. 4 of a second embodiment of the two-stage suspension for an axle of rail vehicles.

La fig. 4 est un plan correspondant à la fig. 3.Fig. 4 is a plane corresponding to FIG. 3.

La fig. 5 est une élévation latérale d'un dispositif de suspension d'un essieu à deux roues pour wagons conformes à l'invention.Fig. 5 is a side elevation of a suspension device for a two-wheeled axle for wagons according to the invention.

La fig. 6 est un plan de dessus correspondant à la fig. 5.Fig. 6 is a top plan corresponding to FIG. 5.

La fig. 7 est une coupe sensiblement suivant la ligne VII-VII de la fig. 6.Fig. 7 is a section substantially along the line VII-VII of FIG. 6.

A la fig. 1, on a représenté d'une façon schématique par un trait 1 le châssis d'un véhicule sur rails par exemple d'une voiture de voyageurs. Ce châssis est constitué ordinairement par deux poutres convenablement entretoisées. La partie inférieure des longerons du châssis 1 porte à chacune de leurs extrémités des caissons 2, 3 de forme prismatique dont les faces avant 2a, 3a sont planes pour former butée destinée à recevoir l'extrémité 4a d'un cylindre 4 qui sont des éléments composites étagés en sandwich caoutchouc métal. Ces cylindres 4 reposent par leurs extrémités 4b sur des talons 5 solidaires des extrémités 6a, 6b d'un longeron intermédiaire 6 qui est relié à l'autre longeron intermédiaire situé sur l'autre côté du châssis 1 du véhicule par des traverses 7, 8. Ces dernières,qui sont ici de section circulaire, sont disposées symétriquement par rapport à l'axe 10 de l'essieu 11 portant les roues 12 destinées à rouler sur les rails (voir fig. 2). 12a, 13a désignent les bourrelets circulaires de chaque roue 12, 13 coopérant avec le talon ou bourrelet des rails R pour le guidage du véhicule sur la voie. Au centre de chaque longeron intermédiaire 6 sont prévus, sur la partie inférieure de ceux-ci, des supports 13, 14 destinés à recevoir des éléments de suspension 15 d'un type connu en soi et composés d'un ressort conique coopérant avec une matière souple telle que du caoutchouc. Finalement,ces éléments de suspension 15 reposent sur une pièce longitudinale inférieure 16 de forme appropriée présentant, en son centre, une boîte à roulements 17 contenant chacune une extrémité 11a de l'essieu 11.In fig. 1, there is shown schematically by a line 1 the chassis of a rail vehicle for example of a passenger car. This chassis usually consists of two suitably braced beams. The lower part of the side members of the chassis 1 carries at each of their ends boxes 2, 3 of prismatic shape whose front faces 2a, 3a are flat to form a stop intended to receive the end 4a of a cylinder 4 which are composite elements layered in sandwich rubber metal . These cylinders 4 rest at their ends 4b on heels 5 secured to the ends 6a, 6b of an intermediate spar 6 which is connected to the other intermediate spar located on the other side of the chassis 1 of the vehicle by crosspieces 7, 8 The latter, which are here of circular section, are arranged symmetrically with respect to the axis 10 of the axle 11 carrying the wheels 12 intended to roll on the rails (see fig. 2). 12a, 13a denote the circular beads of each wheel 12, 13 cooperating with the heel or bead of the rails R for guiding the vehicle on the track. In the center of each intermediate spar 6 are provided, on the lower part thereof, supports 13, 14 intended to receive suspension elements 15 of a type known per se and composed of a conical spring cooperating with a material flexible such as rubber. Finally, these suspension elements 15 rest on a lower longitudinal part 16 of suitable shape having, in its center, a bearing box 17 each containing an end 11a of the axle 11.

La description ci-dessus montre que la géométrie de l'ensemble est réalisée à l'aide des longerons intermédiaires 6 et des traverses 7, 8 qui forment un cadre rigide assurant la géométrie du train de roueS12 considéré et un entraînement correct de l'ensemble. Le premier étage de suspension constitué par les éléments de suspension 15 absorbe un grand nombre de fréquences verticales tandis que les cylindres 4 absorbent les fréquences longitudinales et transversales évitant ainsi les mouvements latéraux brusques générateurs de chocs.The above description shows that the geometry of the assembly is produced using the intermediate beams 6 and the crosspieces 7, 8 which form a rigid frame ensuring the geometry of the wheel set S12 considered and correct drive of the assembly . The first suspension stage constituted by the suspension elements 15 absorbs a large number of vertical frequencies while the cylinders 4 absorb the longitudinal and transverse frequencies thus avoiding sudden lateral movements generating shocks.

Comme cela est visible tant à la fig. 1 qu'à la fig. 2, la traverse 8 porte le dispositif de freinage 20 dont on voit les sabots 21 disposés près du bandage des roues 12, 13.As can be seen both in fig. 1 as in fig. 2, the cross member 8 carries the braking device 20, the shoes 21 of which are seen near the tire of the wheels 12, 13.

Ce montage est simple, compact et permet d'assurer à des véhicules sur rails et en particulier à des voitures de voyageurs un confort identique au confort obtenu lors de l'emploi de boggies comprenant chacun deux essieux à deux roues. Mais cette dernière solution est beaucoup plus coûteuse aussi bien à la réalisation que lors de l'entretien du matériel. De plus l'emploi de véhicules à boggies provoque très souvent une augmentation de dépense d'énergie.This assembly is simple, compact and makes it possible to provide vehicles on rails and in particular passenger cars with comfort identical to the comfort obtained when using bogies each comprising two axles with two wheels. But the latter solution is much more expensive both in the production and in the maintenance of the equipment. In addition, the use of bogie vehicles very often causes an increase in energy expenditure.

Il y a lieu d'indiquer que l'essieu sus-décrit peut recevoir un pont moteur pour un véhicule du type autorail léger. La boîte de réaction du moteur est alors solidaire de la caisse par l'intermédiaire d'articulations élastiques non représentées.It should be noted that the axle described above can receive a drive axle for a vehicle of the light railcar type. The engine reaction box is then secured to the body by means of elastic joints not shown.

Finalement,on peut indiquer que l'écartement des cylindres 4 formant la suspension secondaire est prévu suffisant afin d'assurer un couple anti-cabrage au cadre composé des longerons intermédiaires 6 et des traverses 7 et 8.Finally, it can be indicated that the spacing of the cylinders 4 forming the secondary suspension is provided sufficient to ensure an anti-rearing torque to the frame composed of the intermediate beams 6 and of the cross members 7 and 8.

A la fig. 3 on a représenté une variante de réalisation du dispositif de suspension à deux étages dans lequel le châssis du véhicule est représenté par le trait 30, ce châssis portant en des points déterminés deux assiettes 31 sur lesquelles viennent reposer les extrémités supérieures de ressorts 32 noyés dans une matière élastique 33 par exemple du caoutchouc. La partie inférieure de ces éléments élastiques mixtes 32, 33 repose sur des plateaux 34, 35 prolongeant chaque longeron intermédiaire 36 relié à l'autre longeron symétrique 36 par des traverses 37, 38 à section ronde disposées symétriquement par rapport à l'axe 39 de l'essieu 40 portant les roues 41,42.In fig. 3 shows an alternative embodiment of the two-stage suspension device in which the vehicle chassis is represented by the line 30, this chassis carrying at specific points two plates 31 on which rest the upper ends laughing springs 32 embedded in an elastic material 33 for example rubber. The lower part of these mixed elastic elements 32, 33 rests on plates 34, 35 extending each intermediate spar 36 connected to the other symmetrical spar 36 by cross-members 37, 38 with round section arranged symmetrically with respect to the axis 39 of the axle 40 carrying the wheels 41,42.

Chaque longeron intermédiaire 36 affecte sensiblement la forme d'un "U" renversé qui recouvre sensiblement les parties terminales de chaque essieu 40 de façon que chaque boîte à roulements 43 soit disposée juste en dessous de la partie inférieure 36a transversale de chaque longeron intermédiaire 36 en "U" renversé. Les branches 36b, 36c de la traverse 36 en "U" renversé portent dans leurs zones médianes, côtés intérieurs, des caissons 138 sur lesquels prennent appui des blocs élastiques 39 en chevrons d'un type connu en soi, ces blocs élastiques reposant par leurs autres extrémités sur la carcasse extérieure 47 de la boîte à roulements 43 recevant l'extrémité de l'essieu 40 considéré. Finalement, la carcasse extérieure 47 porte un méplat 50 destiné à coopérer avec une butée 51 placée juste au-dessus sur la partie inférieure horizontale du longeron intermédiaire 36 en "U" renversé considéré.Each intermediate beam 36 substantially takes the form of an inverted "U" which substantially covers the end parts of each axle 40 so that each bearing box 43 is disposed just below the transverse lower part 36a of each intermediate beam 36 in "U" overturned. The branches 36b, 36c of the crosspiece 36 in an inverted "U" shape carry in their median zones, inner sides, boxes 138 on which bear elastic blocks 39 in chevrons of a type known per se, these elastic blocks resting on their other ends on the outer carcass 47 of the bearing box 43 receiving the end of the axle 40 considered. Finally, the outer carcass 47 carries a flat 50 intended to cooperate with a stop 51 placed just above on the horizontal lower part of the intermediate spar 36 in an inverted "U" considered.

Il y a lieu de signaler que dans cette construction l'entraînement de l'essieu est réalisé obligatoirement d'une manière artificielle par deux bielles d'asservissement 55 articulées en 56 sur l'extrémité 36d de chaque longeron intermédiaire 36 et sur une base 57 solidaire du dessous du châssis 30 du véhicule. Les articulations des bielles 55 sont constituées par des rotules élastiques 60, 61. Comme dans le cas précédent, l'une des traverses 38 porte les bielles de freinage 65 commandant la rotation des patins de frein 66 frottant sur la périphérie extérieure de chacune des roues 41, 42.It should be noted that in this construction the drive of the axle is necessarily carried out in an artificial manner by two control rods 55 articulated at 56 on the end 36d of each intermediate spar 36 and on a base 57 secured to the underside of the chassis 30 of the vehicle. The articulations of the connecting rods 55 are constituted by elastic ball joints 60, 61. As in the previous case, one of the crosspieces 38 carries the braking connecting rods 65 controlling the rotation of the brake pads 66 rubbing against the outer periphery of each of the wheels 41, 42.

Le cadre de maintien constitué par les longerons intermédiaires 36 et les traverses 37, 38 assure la bonne géométrie et la tenue de l'ensemble.The retaining frame constituted by the intermediate beams 36 and the crosspieces 37, 38 ensures the correct geometry and the strength of the assembly.

Dans les deux cas,il est possible d'obtenir ainsi une suspension très agréable de la caisse du véhicule évitant aussi bien les chocs verticaux que les chocs horizontaux et transversaux pour un meilleur confort des passagers.In both cases, it is thus possible to obtain a very pleasant suspension of the vehicle body avoiding both vertical impacts as well as horizontal and transverse impacts for better passenger comfort.

Dans tous les cas, la suspension secondaire peut recevoir des amortisseurs hydrauliques verticaux et transversaux d'un type courant. Les amortisseurs verticaux placés au droit de chaque élément de suspension secondaire sont tels qu'ils pourront également amortir les mouvements éventuels de galop du cadre 36, 37, 38.In all cases, the secondary suspension can receive vertical and transverse hydraulic shock absorbers of a common type. The vertical dampers placed at the right of each secondary suspension element are such that they can also dampen any galloping movements of the frame 36, 37, 38.

Il est possible également d'améliorer encore la suspension lors de l'inscription de l'essieu en courbe, c'est-à-dire au moment où le wagon roule dans une courbe de la voie. Dans les solutions précédentes utilisées actuellement,le jeu nécessaire est donné aux plaques de garde des boîtes d'essieux. Mais, dans la suspension conforme à l'invention, c'est l'élasticité des divers éléments de suspension qui donne à l'essieu cette liberté. Or, les essais ont montré que si l'entraînement de la suspension de l'essieu et son déplacement transversal sont réalisés correctement, en revanche sa mise en rotation angulaire est très limitée.It is also possible to further improve the suspension when registering the axle in a curve, that is to say when the wagon is rolling in a curve of the track. In the previous solutions currently used, the necessary clearance is given to the guard plates of the axle boxes. However, in the suspension according to the invention, it is the elasticity of the various suspension elements which gives the axle this freedom. However, tests have shown that if the drive of the axle suspension and its transverse displacement are carried out correctly, on the other hand its angular rotation is very limited.

On peut donc suivant l'invention améliorer la mise en. rotation angulaire de l'ensemble de façon à ce que, grâce à un dispositif complémentaire, on puisse obtenir une rotation très aisée tout en conservant toutes les autres caractéristiques de suspension qui sont :

  • - déplacement transversal important,
  • - souplesse verticale des deux étages,
  • - entraînement longitudinal,
  • - sécurité par non-rupture absolue des ressorts caoutchouc,
  • - simplicité de montage et d'entretien.
It is therefore possible according to the invention to improve the setting. angular rotation of the assembly so that, thanks to an additional device, it is possible to obtain a very easy rotation while retaining all the other suspension characteristics which are:
  • - significant transverse displacement,
  • - vertical flexibility of the two floors,
  • - longitudinal drive,
  • - safety by absolute non-rupture of the rubber springs,
  • - simplicity of assembly and maintenance.

Comme précédement , on a représenté d'une façon schématique,par un trait 100, le châssis d'un véhicule sur rails, par exemple une voiture de voyageurs. Ce châssis est constitué normalement par deux poutres convenablement entretoisées. La partie inférieure des longerons du châssis 1 porte à chacune des extrémités des caissons 102, 103 dont la face avant 102a, 103a est inclinée sensiblement à 45° par rapport à l'axe longitudinal X1, X2 de la voiture (voir fig. 6). Les faces inclinées prémentionnées 102a, 103a portent chacune un élément élastique simple 104 de la même famille que les bolsters, c'est-à-dire des éléments composites constitués chacun par au moins un élément ressort, en matière souple déformable, par exemple du caoutchouc traité.As above, there is shown schematically, by a line 100, the chassis of a rail vehicle, for example a passenger car. This chassis normally consists of two beams suitably braced. The lower part of the frame rails 1 carries at each of the ends of the boxes 102, 103 whose front face 102a, 103a is inclined substantially at 45 ° relative to the longitudinal axis X1, X2 of the car (see fig. 6) . The aforementioned inclined faces 102a, 103a each carry a simple elastic element 104 of the same family as the bolsters, that is to say composite elements each consisting of at least one spring element, made of flexible deformable material, for example rubber treaty.

Ainsi ces éléments élastiques simples peuvent maintenir, par l'intermédiaire d'une soucoupe rigide 105, les cylindres composites 106 qui sont légèrement inclinés vers le bas de la direction de-l'essieu mais qui sont disposés parallèlement aux longerons du châssis 1.Thus these simple elastic elements can hold, by means of a rigid saucer 105, the composite cylinders 106 which are slightly inclined downwards from the direction of the axle but which are arranged parallel to the side members of the chassis 1.

Ainsi les quatre éléments 106 forment la suspension secondaire verticale et transversale dans un cadre 107 constitué par des longerons intermédiaires 108 et des traverses 109.Thus the four elements 106 form the vertical and transverse secondary suspension in a frame 107 consisting of intermediate beams 108 and cross members 109.

Finalement, les boîtes de roulements 110, placées aux extrémités de chaque essieu 111 sur lesquelles sont montées les roues 112, 113, sont supportées par des pièces inférieures 114 de forme appropriée et qui sont reliées aux longerons intermédiaires 108 par des éléments de suspension 115-116 disposés verticalement et qui sont fixés par leurs parties supérieures sur des supports 117-118 solidaires de la partie inférieure des longerons intermédiaires 108.Finally, the bearing boxes 110, placed at the ends of each axle 111 on which the wheels 112, 113 are mounted, are supported by lower parts 114 of appropriate shape and which are connected to the intermediate beams 108 by suspension elements 115- 116 arranged vertically and which are fixed by their upper parts on supports 117-118 integral with the lower part of the intermediate beams 108.

Comme le montre aisément la fig. 6, chaque face inclinée 102a, 103a des caissons 102, 103 est disposée inclinée sur la verticale de façon semblable aux organes de suspension 106 et également inclinée transversalement de façon que la normale au plan qu'elle représente concourt au centre fictif de rotation de l'essieu 111 ainsi constitué.As fig. 6, each inclined face 102a, 103a of the boxes 102, 103 is disposed inclined on the vertical in a similar manner to the suspension members 106 and also inclined transversely so that the normal to the plane which it represents contributes to the fictitious center of rotation of the axle 111 thus formed.

De cette façon, chaque élément élastique simple simule une portion de pivot conique de grand diamètre et le travail de ces éléments est semblable à celui d'un pivot élastique.In this way, each simple elastic element simulates a conical pivot portion of large diameter and the work of these elements is similar to that of an elastic pivot.

Ce dispositif engendre donc la liberté de rotation recherchée et présente l'avantage de pouvoir permettre, par dimensionnement et choix de caoutchouc, la détermination précise du couple de rotation élastique.This device therefore generates the desired freedom of rotation and has the advantage of being able to allow, by dimensioning and choice of rubber, the precise determination of the elastic rotation torque.

De plus, compte tenu du comportement du caoutchouc, les variations de charge verticale feront varier ce couple dans la proportion de variation des composantes compres- sion/cisaillement du caoutchouc.In addition, taking into account the behavior of the rubber, the variations in vertical load will cause this torque to vary in the proportion of variation of the compression / shear components of the rubber.

On peut donc maîtriser parfaitement de cette façon le couple de rotation de l'essieu.We can therefore perfectly control the torque of the axle in this way.

L'élément intermédiaire de fixation 102a, 104 permet l'utilisation, dans ce montage, d'élémentsséparés de manière à ce que les pièces soient facilement interchangeables.The intermediate fixing element 102a, 104 allows the use, in this assembly, of separate elements so that the parts are easily interchangeable.

Une autre façon de monter cet élément consiste à le placer entre le bolster de suspension secondaire 106 et le cadre mobile.Another way to mount this element is to place it between the secondary suspension bolster 106 and the movable frame.

En général, la première solution est préférée car elle place mieux les éléments sandwich de rotation 102a-104.In general, the first solution is preferred because it better places the sandwich sandwich elements 102a-104.

Claims (5)

1 - Dispositif de suspension. à deux -étages pour essieu de véhicule sur rails, caractérisé en ce qu'il est constitué par deux étages de suspension, l'un (15) relié directement à la boîte à roulements (17) par l'intermédiaire d'une pièce longitudinale inférieure (16) sur un longeron intermédiaire _(6) qui est supporté par l'autre, la suspension secondaire (4) prenant appui sur des caissons prismatiques (2, 3) formant butée, de façon à donner une légère inclinaison de bas en haut et en opposition aux organes constituant la suspension secondaire (4), de plus ces caissons (2, 3) sont reliés directement au châssis (1) du véhicule puis les longerons intermédiaires (6) précités sont reliés deux à deux par des traverses (7, 8) disposées symétriquement par rapport à l'axe (10) de l'essieu (11) et formant ainsi un cadre maintenant la géométrie de l'ensemble et supportant le dispositif de freinage.1 - Suspension device. with two stages for a vehicle axle on rails, characterized in that it consists of two suspension stages, one (15) connected directly to the bearing box (17) by means of a longitudinal piece lower (16) on an intermediate spar _ (6) which is supported by the other, the secondary suspension (4) bearing on prismatic boxes (2, 3) forming a stop, so as to give a slight inclination from bottom to high and in opposition to the members constituting the secondary suspension (4), moreover these boxes (2, 3) are connected directly to the chassis (1) of the vehicle then the aforementioned intermediate beams (6) are linked in pairs by crosspieces ( 7, 8) arranged symmetrically with respect to the axis (10) of the axle (11) and thus forming a frame maintaining the geometry of the assembly and supporting the braking device. 2 - Dispositif suivant la revendication 1, caractérisé en ce que la suspension primaire (39) repose directement sur la boîte à roulements (43) par l'une de ses extrémités et sur des caissons prismatiques et inclinés (138) par son autre extrémité, ces caissons étant solidaires d'un longeron intermédiaire (36) maintenant la partie inférieure des éléments formant la suspension secondaire verticale (32, 33) qui est fixée par son extrémité supérieure sur le châssis (1) du véhicule, des traverses (37, 38) disposées symétriquement par rapport à l'axe (39) de l'essieu (40) formant un cadre avec les longerons intermédiaires pour assurer la bonne géométrie et la tenue de l'ensemble et le maintien du dispositif de freinage (65, 66) puis, pour assurer l'entraînement de cette construction, il est prévu sur un côté de celle-ci des bielles d'asservissement longitudinales (55) articulées sur des rotules élastiques (60, 61) solidaires les unes des longerons intermédiaires (36) et les autres du châssis du véhicule.2 - Device according to claim 1, characterized in that the primary suspension (39) rests directly on the bearing box (43) by one of its ends and on prismatic and inclined boxes (138) by its other end, these boxes being integral with an intermediate spar (36) holding the lower part of the elements forming the vertical secondary suspension (32, 33) which is fixed by its upper end to the chassis (1) of the vehicle, sleepers (37, 38 ) arranged symmetrically with respect to the axis (39) of the axle (40) forming a frame with the intermediate beams to ensure the correct geometry and the holding of the assembly and the maintenance of the braking device (65, 66) then, to ensure the drive of this construction, it is provided on one side thereof longitudinal control rods (55) articulated on elastic ball joints (60, 61) integral with one of the intermediate beams (36) and the others with the chassis of the vehicle. 3 - Dispositif suivant les revendications 1 et 2, caractérisé en ce que les ressorts constituant les suspensions primaire et secondaire sont réalisés soit par des sandwichs métal élastique plus matière souple déformable telle que le caoutchouc soit par des ensembles ressorts hélicoïdaux ou spirales plus ou moins noyés dans une matière élastique telle que du caoutchouc.3 - Device according to claims 1 and 2, characterized in that the springs constituting the primary and secondary suspensions are made either by elastic metal sandwiches more flexible deformable material such as rubber or by sets of more or less submerged coil or spiral springs in an elastic material such as rubber. 4 - Dispositif de suspension à deux étages pour essieu de véhicule sur rails, dans lequel le premier étage de suspension est relié directement à la boîte à roulement par l'intermédiaire d'une part d'une pièce longitudinale inférieure et d'autre part sur un longeron intermédiaire qui est supporté par la suspension secondaire qui prend appui sur des caissons prismatiques formant butée de façon à donner une légère inclinaison de bas en haut et en opposition aux organes constituant la suspension secondaire, de plus ces caissons prismatiques sont reliés directement au châssis du véhicule, puis les-longerons intermédiaires précités sont reliés deux à deux par des traverses disposées symétriquement par rapport à l'axe de l'essieu et formant ainsi un cadre rigide maintenant la géométrie de l'ensemble et supportant le dispositif de freinage du véhicule sur rails suivant les revendications 1 et 2, caractérisé en ce qu'il est prévu à chaque angle du cadre précité un élément élastiqué (104) prenant appui sur la suspension secondaire pour assurer un travail transversal suffisant du cadre.4 - Two-stage suspension device for a vehicle axle on rails, in which the first suspension stage is connected directly to the rolling box via on the one hand a lower longitudinal part and on the other an intermediate spar which is supported by the secondary suspension which is supported on prismatic boxes forming a stop so as to give a slight inclination from bottom to top and in opposition to the members constituting the secondary suspension, moreover these prismatic boxes are connected directly to the chassis of the vehicle, then the aforementioned intermediate side rails are connected two by two by cross members arranged symmetrically with respect to the axis of the axle and thus forming a rigid frame maintaining the geometry of the assembly and supporting the vehicle braking device on rails according to claims 1 and 2, characterized in that there is provided at each corner of the above-mentioned frame an elastic element (104) t press on the secondary suspension to ensure sufficient transverse work of the frame. 5 - Dispositif de suspension à deux étages pour essieu de véhicule sur rails suivant la revendication 4, caractérisé en ce que les éléments élastiques (104) sont fixés à la structure du châssis du wagon par des caissons extérieurs (102-103) supérieurs, la position de chaque élément supérieur élastique (104) est inclinée sur la verticale de façon semblable aux organes élastiques de la suspension secondaire (106) et également inclinée transversalement de telle façon que la normale du plan que l'organe présente concourt au centre fictif de la rotation et assure aussi une certaine rotation d'axe vertical de l'essieu.5 - A two-stage suspension device for a vehicle axle on rails according to claim 4, characterized in that the elastic elements (104) are fixed to the structure of the wagon chassis by upper external casings (102-103), the position of each elastic upper element (104) is inclined to the vertical in a similar manner to the elastic members of the secondary suspension (106) and also inclined transversely so that the normal of the plane which the member presents contributes to the imaginary center of the rotation and also provides some rotation of the vertical axis of the axle.
EP19820402178 1981-12-11 1982-11-30 Two-stage suspension device for a railway vehicle axle Expired EP0082043B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82402178T ATE18028T1 (en) 1981-12-11 1982-11-30 TWO-STAGE SUSPENSION DEVICE OF A RAILWAY VEHICLE AXLE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8123206A FR2518038A1 (en) 1981-12-11 1981-12-11 Rail vehicle suspension system - has two sheets using intermediate sole bar to support brake gear
FR8123206 1981-12-11
FR8218757 1982-11-09
FR8218757A FR2535663A2 (en) 1982-11-09 1982-11-09 Two-stage suspension device for an axle for vehicles on rails.

Publications (2)

Publication Number Publication Date
EP0082043A1 true EP0082043A1 (en) 1983-06-22
EP0082043B1 EP0082043B1 (en) 1986-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820402178 Expired EP0082043B1 (en) 1981-12-11 1982-11-30 Two-stage suspension device for a railway vehicle axle

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EP (1) EP0082043B1 (en)
DE (2) DE82043T1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295462A1 (en) * 1987-05-30 1988-12-21 Linke-Hofmann-Busch Waggon-Fahrzeug- Maschinen GmbH Running gear for railway vehicles
EP0507146A1 (en) * 1991-03-30 1992-10-07 Duewag Aktiengesellschaft Railway vehicle especially low floor vehicle
DE4309324C1 (en) * 1993-03-18 1994-04-07 Aeg Schienenfahrzeuge Single-axle bogie for rail vehicle - has parallel guide bars in longitudinal bogie direction, elastically fastened to beam, to pivot it about bogie pin
WO1995029085A1 (en) * 1994-04-26 1995-11-02 Sig Schweizerische Industrie-Gesellschaft Single spring-mounted wheelset bogie
EP0876947A1 (en) * 1996-10-24 1998-11-11 Urban Culture Institute Co., Inc Axle box support device for bogie truck

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141463A1 (en) * 1991-12-12 1993-06-17 Aeg Schienenfahrzeuge Wheel set guide for rail vehicles with bogies - has wheel set bearing housing with extension guide arm, and elastic guide bearing between arm and bogie beam
DE4344469C1 (en) * 1993-12-22 1995-02-09 Aeg Schienenfahrzeuge Individual bogie for rail vehicles
DE19522253C1 (en) * 1995-06-20 1997-02-06 Sig Schweiz Industrieges Device for supporting, guiding and steering a braked and / or driven wheel set for rail vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1347878A (en) * 1919-04-24 1920-07-27 Walter P Murphy Railway-car
GB307224A (en) * 1928-03-21 1929-03-07 Alfred Walter Maley Improvements in the suspension of rail vehicles
GB891461A (en) * 1957-07-23 1962-03-14 Metalastik Ltd Improvements in or relating to resilient mountings for railway vehicles
GB1149352A (en) * 1965-05-25 1969-04-23 Gloucester Railway Carriage Improvements in or relating to railway vehicle suspensions
FR1583772A (en) * 1968-03-19 1969-12-05

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1347878A (en) * 1919-04-24 1920-07-27 Walter P Murphy Railway-car
GB307224A (en) * 1928-03-21 1929-03-07 Alfred Walter Maley Improvements in the suspension of rail vehicles
GB891461A (en) * 1957-07-23 1962-03-14 Metalastik Ltd Improvements in or relating to resilient mountings for railway vehicles
GB1149352A (en) * 1965-05-25 1969-04-23 Gloucester Railway Carriage Improvements in or relating to railway vehicle suspensions
FR1583772A (en) * 1968-03-19 1969-12-05

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295462A1 (en) * 1987-05-30 1988-12-21 Linke-Hofmann-Busch Waggon-Fahrzeug- Maschinen GmbH Running gear for railway vehicles
EP0507146A1 (en) * 1991-03-30 1992-10-07 Duewag Aktiengesellschaft Railway vehicle especially low floor vehicle
DE4309324C1 (en) * 1993-03-18 1994-04-07 Aeg Schienenfahrzeuge Single-axle bogie for rail vehicle - has parallel guide bars in longitudinal bogie direction, elastically fastened to beam, to pivot it about bogie pin
WO1995029085A1 (en) * 1994-04-26 1995-11-02 Sig Schweizerische Industrie-Gesellschaft Single spring-mounted wheelset bogie
EP0876947A1 (en) * 1996-10-24 1998-11-11 Urban Culture Institute Co., Inc Axle box support device for bogie truck
EP0876947A4 (en) * 1996-10-24 2000-01-12 Urban Culture Inst Co Inc Axle box support device for bogie truck

Also Published As

Publication number Publication date
DE3269254D1 (en) 1986-03-27
DE82043T1 (en) 1984-04-12
EP0082043B1 (en) 1986-02-19

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