EP2476600A1 - Suspended railway vehicle bogie - Google Patents

Suspended railway vehicle bogie Download PDF

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Publication number
EP2476600A1
EP2476600A1 EP12305064A EP12305064A EP2476600A1 EP 2476600 A1 EP2476600 A1 EP 2476600A1 EP 12305064 A EP12305064 A EP 12305064A EP 12305064 A EP12305064 A EP 12305064A EP 2476600 A1 EP2476600 A1 EP 2476600A1
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EP
European Patent Office
Prior art keywords
axle
suspension
point
crossbar
articulated
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Granted
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EP12305064A
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German (de)
French (fr)
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EP2476600B1 (en
Inventor
Alain Rodet
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Alstom Transport SA
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Alstom Transport SA
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Publication of EP2476600A1 publication Critical patent/EP2476600A1/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
    • B61F5/32—Guides, e.g. plates, for axle-boxes
    • B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles

Definitions

  • the so-called “suspended” bogies are bogies in which the axles are connected to the chassis by suspension means making it possible to damp the deformations, such as the left-hand tracks, between the axles and the chassis.
  • the chassis generally comprises a mechanically welded or molded structure comprising a cross member and two longitudinal members, each extending longitudinally over the end portions of the axles, the suspension means being arranged between these end portions and the longitudinal members extending opposite each other. .
  • Such a structure is particularly bulky, especially vertically, and has a large mass due to the structure of the frame that occupies a large space.
  • One of the aims of the invention is to propose a railway vehicle bogie suspended of reduced mass.
  • the chassis structure of such a bogie is particularly simple because it is formed essentially of a cross member extending substantially transversely.
  • the suspension means allow the efforts to be resumed with sufficient rigidity by transferring them from the axle towards the center of the chassis, that is to say towards the cross-member.
  • Such a bogie is of reduced mass by concentrating these masses towards the center of the chassis, in particular at the cross-member, which makes it possible to dispense with the usual welded or molded structures.
  • the term “longitudinal” is defined with respect to the direction in which the rail vehicle circulates, that is to say the direction in which the rails on which this rail vehicle is traveling extend.
  • the term “transverse” is defined relative to a direction substantially perpendicular to the longitudinal direction in a horizontal plane, that is to say the direction in which the rails are spaced apart from each other.
  • the terms “inferior”, “superior”, “below”, “above”, etc. are defined in relation to the elevation direction of a railway vehicle
  • a bogie 1 comprising a frame 2, consisting essentially of a cross member 4 extending substantially transversely, and two axles 6 extending substantially transversely parallel to the cross member 4 and arranged on either side of the cross member 4.
  • axles 6 are rotatable relative to the chassis, about a substantially transverse axis A, and each carry two wheels 8, each wheel 8 being mounted on a transverse end portion of the axle 6 and being integral in rotation with the wheel. axle 6.
  • motor bogie that is to say comprising motorization means 10 for driving one or both axles in rotation.
  • motorization means 10 for driving one or both axles in rotation.
  • bogies carriers that is to say bogies devoid of motorization means.
  • the crosspiece 4 carries functional equipment of the bogie 1, such as the motorization means 10 and suspension means 12 between the bogie 1 and the body of the railway vehicle.
  • the cross member 4 may be made of a monobloc metal structure, of simple construction and of reduced mass compared with the usual structures of the bogie frame.
  • Each axle 6 is rotatably mounted in two axle boxes 14 disposed between the wheels 8, each axle box 14 being adjacent to a wheel 8.
  • the axle boxes 14 are disposed in the space extending between the wheels 8, the bogie 1 has a space requirement in particularly narrow width, the width of the bogie 1 being substantially equal to the distance between the rails on which the rail vehicle runs.
  • Each axle box 14 comprises a central orifice through which the axle 6 passes, ball bearings allowing for example the rotation of the axle 6 inside the central orifice.
  • the axle box 14 comprises a plurality of stirrups allowing the articulation of suspension means 16, as will be described below.
  • each axle box 14 is connected to the cross member 4 by suspension means 16, called “primary suspensions", to damp the deformations, such as the left lanes and resume the efforts of the box. axle 14 and transmit them to the crossbar 4.
  • the suspension means 16 are articulated on the one hand on the crossbar 4 and on the other hand on the axle box 14 and extend substantially longitudinally between the crossbar 4 and each axle 6.
  • Each axle box 14 is connected to the crosspiece 4 by these suspension means 16.
  • the suspension means 16 connecting an axle box 14 to the cross member 4 comprise three suspension elements, namely a lower suspension element 18, an upper suspension element 20 and a diagonal suspension element 22.
  • the lower suspension element 18 connects a lower part of the axle 6, formed by the part of the axle box 14 extending below the axle 6, to a lower part of the crossbar 4.
  • the upper suspension element 20 connects an upper part of the axle 6, formed by the part of the axle box 14 extending above the axle 6, to an upper part of the crossbar 4.
  • the diagonal suspension element 22 connects the lower part of the axle 6 to the upper part of the crossbar 4.
  • Each suspension element is articulated on the one hand on the axle box 14 and on the other hand on the crossbar 4. This articulation is done by mounting the suspension elements on brackets provided on the one hand on the box axle 14 and secondly on the crossbar 4 opposite the axle box 14.
  • a stirrup is formed by two flanges 26 spaced apart from each other in the transverse direction and each carrying a housing 28 for receiving of a hinge pin 30 carried by a suspension element 18, 20, 22, as shown in FIG. figure 1 .
  • the lower suspension element 18 is articulated on a lower yoke 32 of the axle box 14, the lower yoke 32 extending under the axle 6.
  • the lower suspension element 18 is articulated around an axis B substantially parallel to the axis A of the axle 6, that is to say extending in the transverse direction, and extending substantially in the same vertical plane as the axis A of the axle 6.
  • the lower articulation element 18 is further articulated on one or two stirrups 34 provided on the lower part of the crossbar 4, facing the lower stirrup 32, about a substantially transverse axis C extending substantially in the same horizontal plane as the axis B around which the lower suspension element 18 is articulated on the lower yoke 32.
  • the lower suspension element 18 is formed by a connecting rod 36 of substantially triangular shape, articulated at two points, formed by two stirrups 34, on the lower part of the crossbar 4 and at a point formed by the lower stirrup 32 at the lower part of the axle 6.
  • a rod 36 of triangular shape allows to take up both the forces exerted in the longitudinal direction and the forces exerted in the transverse direction.
  • the lower suspension element 18 is formed by a substantially straight rod articulated at one point, formed by a single bracket 34, on the lower part of the crossbar 4 and at a point formed by the lower bracket 32, on the lower part of the axle 6.
  • This rectilinear rod allows to resume the efforts in the longitudinal direction.
  • the suspension means further comprise a lateral rod 33 extending substantially transversely above the axle 6 and articulated on the one hand on the axle box 14 and on another by a integral element of the cross member 4, such as a part of the drive means 10. The lateral rod 33 then allows to take the transverse forces.
  • the upper suspension element 20 is hinged to an upper yoke 38 of the axle box 14, the upper yoke 38 extending above the axle 6, opposite the lower caliper 32.
  • the upper suspension element 20 is articulated about a substantially transverse axis D and extending substantially in the same vertical plane as the axis A of the axle 6.
  • the upper suspension element 20 is further articulated on a bracket 40 provided on the upper part of the crossbar 4, facing the upper stirrup 38, about a substantially transverse axis E and extending substantially in the same vertical plane as the axis C around which the lower suspension element 18 is articulated on the crossbar 4
  • the upper suspension element 20 is formed by a substantially rectilinear connecting rod 42 articulated at one point, formed by the stirrup 40, on the upper part of the crossmember 4 and at a point formed by the upper stirrup 38, on the upper part of the axle 6.
  • the upper suspension element 20 is formed by a jack 44 articulated at one point, formed by the stirrup 40, on the upper part of the crossbar 4 and at a point, formed by the upper stirrup 38, on the part upper axle 6.
  • the cylinder 44 comprises a body 46 and a rod 48 movable in translation relative to the body 44.
  • the body 44 is articulated on the upper part of the axle 6 and the rod 48 is articulated on the part 4.
  • the upper suspension element 22 makes it possible to orient the axle 6 with respect to the crossbar 4 in curve thanks to the displacement of the rod 48 with respect to the body 46.
  • the diagonal suspension element 22 is articulated on an intermediate bracket 49 of the axle box 14.
  • the intermediate bracket 49 extends between the lower and upper stirrups 32 at the level of the axle 6.
  • the diagonal suspension 22 is articulated about a substantially transverse axis F, extending in a vertical plane, between the vertical plane passing through the axis A of the axle 6 and the vertical plane passing through the axes C and E, around which the lower suspension elements 18 and upper 20 are articulated on the crossbar 4.
  • the intermediate stirrup 49 is formed by the same flanges 26 which form the lower stirrup 34, said flanges thus each comprising two receptacles 28 for receiving hinge pins.
  • the diagonal suspension element 22 is further articulated on a stirrup 50 provided on the upper part of the crossbar 4, under the stirrup 40 on which is articulated the upper suspension element 20, about a substantially transverse axis G and extending substantially in the same vertical plane as the axes C and E around which are articulated the lower suspension elements 18 and upper 20.
  • the stirrup 50 is formed by the same flanges 26 who form the stirrup 40, said flanges each comprising two housing 28 for receiving hinge pins.
  • the diagonal suspension element 22 is formed by a flexible connecting rod 52 provided with a spring 54 articulated at one point, formed by the intermediate stirrup 49, on the lower part of the axle 6 and at a point formed by the stirrup 50, on the upper part of the crossbar 4.
  • the diagonal suspension element 22 is formed by a substantially rectilinear connecting rod 56 articulated at one point, formed by the intermediate stirrup 49, on the lower part of the axle 6 and at a point formed by the stirrup 50, on the upper part of the crossbar 4.
  • the lower suspension element 18 and the diagonal suspension element 22 form the suspension means for damping the deformations, such as left lanes.
  • the stiffness of the suspension is adjusted by the stiffness of the spring 54 of the flexible rod 52 forming the diagonal suspension element.
  • the stiffness of the suspension is regulated by the stiffness of the joints between the lower suspension elements 18 and diagonal 22 and the crossbar 4 and the box axle 14.
  • the upper suspension element 20 forms, meanwhile, means for locking the axle box 14 in rotation and prevents the axle box 14 from being rotated with the axle 6.
  • the materials forming the connecting rods described above are chosen to have satisfactory mechanical characteristics to take the longitudinal and transverse forces efficiently. These materials are for example selected from steel, light alloys, composite materials.
  • the bogie described above has a mass lower than conventional bogies because of the simplicity of the structure of the frame 2.
  • the suspension means 16 can transfer the forces effectively to the center of the frame 2, formed by the cross 4
  • the suspension elements forming these suspension means are simple to produce and do not have a complex structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The bogie (1) has suspension units (16) for fixing an axle (6) to a frame (2). The suspension units include a lower suspension element (18) connecting a lower portion of the axle to a lower portion of a cross-piece (4), and an upper suspension element (20) connecting an upper portion of the axle to an upper portion of the cross-piece. A diagonal suspension element (22) extends between the lower suspension element and the upper suspension element, and connects the lower portion of the axle to the upper portion of the crosspiece, where the suspension elements are formed by connecting rods.

Description

La présente invention concerne un bogie de véhicule ferroviaire du type comprenant :

  • un châssis comprenant une traverse s'étendant sensiblement transversalement destinée à supporter des équipements fonctionnels du bogie,
  • au moins un essieu s'étendant sensiblement transversalement parallèlement à la traverse et monté en rotation par rapport au châssis, une roue étant montée sur chacune des parties extrêmes transversales dudit essieu,
  • des moyens de suspensions fixant l'essieu au châssis.
The present invention relates to a railway vehicle bogie of the type comprising:
  • a chassis comprising a cross member extending substantially transversely for supporting functional equipment of the bogie,
  • at least one axle extending substantially transversely parallel to the cross member and rotatably mounted relative to the chassis, a wheel being mounted on each of the transverse end portions of said axle,
  • suspension means fixing the axle to the chassis.

Les bogies dits « suspendus » sont des bogies dans lesquels les essieux sont reliés au châssis par des moyens de suspension permettant d'amortir les déformations, telles que les gauches de voies, entre les essieux et le châssis. Le châssis comprend généralement une structure mécano-soudée ou moulée comprenant une traverse et deux longerons, chacun s'étendant longitudinalement au-dessus des parties extrêmes des essieux, les moyens de suspension étant disposés entre ces parties extrêmes et les longerons s'étendant en regard.The so-called "suspended" bogies are bogies in which the axles are connected to the chassis by suspension means making it possible to damp the deformations, such as the left-hand tracks, between the axles and the chassis. The chassis generally comprises a mechanically welded or molded structure comprising a cross member and two longitudinal members, each extending longitudinally over the end portions of the axles, the suspension means being arranged between these end portions and the longitudinal members extending opposite each other. .

Une telle structure est particulièrement encombrante, notamment verticalement, et présente une masse importante du fait de la structure du châssis qui occupe un espace important.Such a structure is particularly bulky, especially vertically, and has a large mass due to the structure of the frame that occupies a large space.

Pour pallier cet inconvénient de l'encombrement vertical trop important, le document WO-2008/1292206 a proposé une structure particulière de châssis dans laquelle l'essieu est relié au châssis par des moyens de suspension formés de bielles s'étendant sensiblement longitudinalement. Cependant, ces bielles ont une structure complexe à réaliser et le châssis présente toujours une masse importante du fait de sa structure particulière permettant de recevoir les bielles de suspension.To overcome this disadvantage of excessive vertical space, the document WO 2008/1292206 has proposed a particular frame structure in which the axle is connected to the frame by suspension means formed of rods extending substantially longitudinally. However, these rods have a complex structure to achieve and the chassis still has a large mass because of its particular structure for receiving the suspension rods.

L'un des buts de l'invention est de proposer un bogie de véhicule ferroviaire suspendu de masse réduite.One of the aims of the invention is to propose a railway vehicle bogie suspended of reduced mass.

A cet effet, l'invention concerne un bogie de véhicule ferroviaire du type précité, dans lequel les moyens de suspensions comprennent trois éléments de suspension :

  • un élément de suspension inférieur, reliant une partie inférieure de l'essieu à une partie inférieure de la traverse,
  • un élément de suspension supérieur, reliant une partie supérieure de l'essieu à une partie supérieure de la traverse, et
  • un élément de suspension diagonal s'étendant entre l'élément de suspension inférieur et l'élément de suspension supérieur et reliant la partie inférieure de l'essieu à la partie supérieure de la traverse.
For this purpose, the invention relates to a railway vehicle bogie of the aforementioned type, wherein the suspension means comprise three suspension elements:
  • a lower suspension element, connecting a lower part of the axle to a lower part of the crossbar,
  • an upper suspension member, connecting an upper portion of the axle to an upper portion of the cross member, and
  • a diagonal suspension member extending between the lower suspension member and the upper suspension member and connecting the lower portion of the axle to the upper portion of the cross member.

La structure du châssis d'un tel bogie est particulièrement simple car elle est formée essentiellement d'une traverse s'étendant sensiblement transversalement. Les moyens de suspension permettent de reprendre les efforts avec une rigidité suffisante en les transférant de l'essieu vers le centre du châssis, c'est-à-dire, vers la traverse. Un tel bogie est de masse réduite en concentrant ces masses vers le centre du châssis, en particulier au niveau de la traverse, ce qui permet de se passer des structures mécano-soudées ou moulées habituelles.The chassis structure of such a bogie is particularly simple because it is formed essentially of a cross member extending substantially transversely. The suspension means allow the efforts to be resumed with sufficient rigidity by transferring them from the axle towards the center of the chassis, that is to say towards the cross-member. Such a bogie is of reduced mass by concentrating these masses towards the center of the chassis, in particular at the cross-member, which makes it possible to dispense with the usual welded or molded structures.

Selon d'autres caractéristiques du bogie de véhicule ferroviaire selon l'invention :

  • l'élément de suspension inférieur est formé par une bielle de forme sensiblement triangulaire, articulée en deux points sur la partie inférieure de la traverse et en un point sur la partie inférieure de l'essieu ;
  • l'élément de suspension inférieur est formé par une bielle sensiblement rectiligne articulée en un point sur la partie inférieure de la traverse et en un point sur la partie inférieure de l'essieu, les moyens de suspension comprenant en outre une bielle latérale s'étendant sensiblement transversalement au-dessus de l'essieu entre la partie supérieure de l'essieu et un élément lié à la traverse ;
  • l'élément de suspension supérieur est formé par une bielle sensiblement rectiligne articulée en un point sur la partie supérieure de la traverse et en un point sur la partie supérieure de l'essieu ;
  • l'élément de suspension supérieur est formé par un vérin articulé en un point sur la partie supérieure de la traverse et en un point sur la partie supérieure de l'essieu, ledit vérin comprenant un corps et une tige mobile en translation par rapport au corps, le corps étant articulé sur la partie supérieure de l'un de l'essieu ou de la traverse, la tige étant articulée sur la partie supérieure de l'autre de l'essieu ou de la traverse ;
  • l'élément de suspension diagonal est formé par une bielle flexible munie d'un ressort articulée en un point sur la partie inférieure de l'essieu et en un point sur la partie supérieure de la traverse ;
  • l'élément de suspension diagonal est formé par une bielle sensiblement rectiligne articulée en un point sur la partie inférieure de l'essieu et en un point sur la partie supérieure de la traverse ;
  • l'essieu comprend au moins une boîte d'essieu disposée au voisinage d'une roue, dans lequel l'essieu est monté en rotation, les trois éléments de suspension étant articulés sur ladite boîte d'essieu ;
  • la boîte d'essieu comprend un étrier supérieur s'étendant au-dessus de l'essieu, l'élément de suspension supérieur étant articulé sur ledit étrier supérieur, un étrier inférieur s'étendant en dessous de l'essieu en regard de l'étrier supérieur, l'élément de suspension inférieur étant articulé sur ledit étrier inférieur, et un étrier intermédiaire s'étendant en dessous de l'essieu entre l'étrier supérieur et l'étrier inférieur, l'élément de suspension diagonal étant articulé sur ledit étrier intermédiaire ; et
  • le bogie comprend deux essieux s'étendant de part et d'autre de la traverse du châssis, chaque essieu étant fixé au châssis par des moyens de suspension comprenant trois éléments de suspension reliant l'essieu à la traverse au voisinage de chaque roue.
According to other characteristics of the railway vehicle bogie according to the invention:
  • the lower suspension element is formed by a rod of substantially triangular shape articulated at two points on the lower part of the cross member and at a point on the lower part of the axle;
  • the lower suspension element is formed by a substantially straight rod articulated at a point on the lower part of the cross member and at a point on the lower part of the axle, the suspension means further comprising a lateral connecting rod extending substantially transversely above the axle between the upper part of the axle and a member connected to the cross member;
  • the upper suspension element is formed by a substantially straight rod articulated at a point on the upper part of the cross and at a point on the upper part of the axle;
  • the upper suspension element is formed by a jack articulated at a point on the upper part of the cross member and at a point on the upper part of the axle, said jack comprising a body and a rod movable in translation relative to the body , the body being articulated on the upper part of one of the axle or the crossbar, the rod being articulated on the upper part of the other of the axle or the cross;
  • the diagonal suspension element is formed by a flexible connecting rod provided with a spring articulated at a point on the lower part of the axle and at a point on the upper part of the crossmember;
  • the diagonal suspension element is formed by a substantially straight rod articulated at a point on the lower part of the axle and at a point on the upper part of the crossbar;
  • the axle comprises at least one axle box disposed in the vicinity of a wheel, wherein the axle is rotatably mounted, the three suspension elements being hinged to said axle box;
  • the axle box comprises an upper yoke extending above the axle, the upper suspension member being hinged to said upper yoke, a lower caliper extending below the axle facing the yoke; upper stirrup, the element of lower suspension being hinged to said lower yoke, and an intermediate yoke extending below the axle between the upper caliper and the lower caliper, the diagonal suspension member being hinged to said intermediate yoke; and
  • the bogie comprises two axles extending on either side of the crossmember of the chassis, each axle being fixed to the chassis by suspension means comprising three suspension elements connecting the axle to the cross member in the vicinity of each wheel.

D'autres aspects et avantages de l'invention apparaîtront à la lecture de la description qui suit, donnée à titre d'exemple et faite en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une représentation schématique en perspective d'un bogie selon l'invention, dans lequel une roue a été enlevée pour laisser apparaître les moyens de suspension,
  • la figure 2 est une représentation schématique de côté des moyens de suspension reliant la traverse à l'essieu selon un mode de réalisation de l'invention,
  • la figure 3 est une représentation schématique de côté des moyens de suspension reliant la traverse à l'essieu selon un autre mode de réalisation de l'invention,
  • la figure 4 est une représentation schématique de côté des moyens de suspension reliant la traverse à l'essieu selon encore un autre mode de réalisation de l'invention,
  • la figure 5 est une représentation schématique en perspective d'un bogie comprenant les moyens de suspension du mode de réalisation représenté sur la figure 2.
Other aspects and advantages of the invention will appear on reading the description which follows, given by way of example and with reference to the appended drawings, in which:
  • the figure 1 is a schematic representation in perspective of a bogie according to the invention, in which a wheel has been removed to reveal the suspension means,
  • the figure 2 is a schematic side view of the suspension means connecting the cross member to the axle according to one embodiment of the invention,
  • the figure 3 is a schematic side view of the suspension means connecting the crossbar to the axle according to another embodiment of the invention,
  • the figure 4 is a schematic side view of the suspension means connecting the crossbar to the axle according to yet another embodiment of the invention,
  • the figure 5 is a schematic representation in perspective of a bogie comprising the suspension means of the embodiment shown in FIG. figure 2 .

Dans la description, le terme « longitudinal » est défini par rapport à la direction selon laquelle circule le véhicule ferroviaire, c'est-à-dire la direction dans laquelle s'étendent les rails sur lesquels ce véhicule ferroviaire circule. Le terme « transversal » est défini par rapport à une direction sensiblement perpendiculaire à la direction longitudinale dans un plan horizontal, c'est-à-dire la direction selon laquelle les rails sont écartés l'un de l'autre. Les termes « inférieur », « supérieur », « en dessous », « au-dessus », etc. sont définis par rapport à la direction d'élévation d'un véhicule ferroviaireIn the description, the term "longitudinal" is defined with respect to the direction in which the rail vehicle circulates, that is to say the direction in which the rails on which this rail vehicle is traveling extend. The term "transverse" is defined relative to a direction substantially perpendicular to the longitudinal direction in a horizontal plane, that is to say the direction in which the rails are spaced apart from each other. The terms "inferior", "superior", "below", "above", etc. are defined in relation to the elevation direction of a railway vehicle

Sur la figure 1, on a représenté un bogie 1 comprenant un châssis 2, formé essentiellement d'une traverse 4 s'étendant sensiblement transversalement, et deux essieux 6 s'étendant sensiblement transversalement parallèles à la traverse 4 et disposés de part et d'autre de la traverse 4.On the figure 1 , there is shown a bogie 1 comprising a frame 2, consisting essentially of a cross member 4 extending substantially transversely, and two axles 6 extending substantially transversely parallel to the cross member 4 and arranged on either side of the cross member 4.

Les essieux 6 sont mobiles en rotation par rapport au châssis, autour d'un axe A sensiblement transversal, et portent chacun deux roues 8, chaque roue 8 étant montée sur une partie extrême transversale de l'essieu 6 et étant solidaire en rotation de l'essieu 6.The axles 6 are rotatable relative to the chassis, about a substantially transverse axis A, and each carry two wheels 8, each wheel 8 being mounted on a transverse end portion of the axle 6 and being integral in rotation with the wheel. axle 6.

Sur les figures, on a représenté un bogie moteur, c'est-à-dire comprenant des moyens de motorisation 10 permettant d'entraîner un ou les deux essieux en rotation. On notera cependant que l'invention s'applique également aux les bogies porteurs, c'est-à-dire des bogies dépourvus de moyens de motorisation.In the figures, there is shown a motor bogie, that is to say comprising motorization means 10 for driving one or both axles in rotation. Note however that the invention also applies to the bogies carriers, that is to say bogies devoid of motorization means.

La traverse 4 porte des équipements fonctionnels du bogie 1, tels que les moyens de motorisation 10 et des moyens de suspension 12 entre le bogie 1 et la caisse du véhicule ferroviaire. La traverse 4 peut être réalisée en une structure monobloc métallique, de réalisation simple et de masse réduite par rapport aux structures habituelles de châssis de bogie.The crosspiece 4 carries functional equipment of the bogie 1, such as the motorization means 10 and suspension means 12 between the bogie 1 and the body of the railway vehicle. The cross member 4 may be made of a monobloc metal structure, of simple construction and of reduced mass compared with the usual structures of the bogie frame.

Chaque essieu 6 est monté mobile en rotation dans deux boîtes d'essieu 14 disposées entre les roues 8, chaque boîte d'essieux 14 étant adjacente à une roue 8. Les boîtes d'essieu 14 étant disposées dans l'espace s'étendant entre les roues 8, le bogie 1 présente un encombrement en largeur particulièrement réduit, la largeur du bogie 1 étant sensiblement égale à la distance séparant les rails sur lesquels circule le véhicule ferroviaire.Each axle 6 is rotatably mounted in two axle boxes 14 disposed between the wheels 8, each axle box 14 being adjacent to a wheel 8. The axle boxes 14 are disposed in the space extending between the wheels 8, the bogie 1 has a space requirement in particularly narrow width, the width of the bogie 1 being substantially equal to the distance between the rails on which the rail vehicle runs.

Chaque boîte d'essieu 14 comprend un orifice central par lequel passe l'essieu 6, des roulements à billes permettant par exemple la rotation de l'essieu 6 à l'intérieur de l'orifice central. Autour de cet orifice, la boîte d'essieu 14 comprend une pluralité d'étriers permettant l'articulation de moyens de suspension 16, comme cela va être décrit ci-dessous.Each axle box 14 comprises a central orifice through which the axle 6 passes, ball bearings allowing for example the rotation of the axle 6 inside the central orifice. Around this orifice, the axle box 14 comprises a plurality of stirrups allowing the articulation of suspension means 16, as will be described below.

En effet, chaque boîte d'essieu 14 est reliée à la traverse 4 par des moyens de suspension 16, appelés « suspensions primaires », permettant d'amortir les déformations, telles que les gauches de voies et de reprendre les efforts de la boîte d'essieu 14 et de les transmettre à la traverse 4. Les moyens de suspension 16 sont articulés d'une part sur la traverse 4 et d'autre part sur la boîte d'essieu 14 et s'étendent sensiblement longitudinalement entre la traverse 4 et chaque essieu 6. Chaque boîte d'essieu 14 est reliée à la traverse 4 par ces moyens de suspension 16.Indeed, each axle box 14 is connected to the cross member 4 by suspension means 16, called "primary suspensions", to damp the deformations, such as the left lanes and resume the efforts of the box. axle 14 and transmit them to the crossbar 4. The suspension means 16 are articulated on the one hand on the crossbar 4 and on the other hand on the axle box 14 and extend substantially longitudinally between the crossbar 4 and each axle 6. Each axle box 14 is connected to the crosspiece 4 by these suspension means 16.

Les moyens de suspension 16 reliant une boîte d'essieu 14 à la traverse 4 comprennent trois éléments de suspension, à savoir un élément de suspension inférieur 18, une élément de suspension supérieur 20 et un élément de suspension diagonal 22.The suspension means 16 connecting an axle box 14 to the cross member 4 comprise three suspension elements, namely a lower suspension element 18, an upper suspension element 20 and a diagonal suspension element 22.

L'élément de suspension inférieur 18 relie une partie inférieure de l'essieu 6, formée par la partie de la boîte d'essieu 14 s'étendant en dessous de l'essieu 6, à une partie inférieure de la traverse 4.The lower suspension element 18 connects a lower part of the axle 6, formed by the part of the axle box 14 extending below the axle 6, to a lower part of the crossbar 4.

L'élément de suspension supérieur 20 relie une partie supérieure de l'essieu 6, formée par la partie de la boîte d'essieu 14 s'étendant au-dessus de l'essieu 6, à une partie supérieure de la traverse 4.The upper suspension element 20 connects an upper part of the axle 6, formed by the part of the axle box 14 extending above the axle 6, to an upper part of the crossbar 4.

L'élément de suspension diagonal 22 relie la partie inférieure de l'essieu 6 à la partie supérieure de la traverse 4.The diagonal suspension element 22 connects the lower part of the axle 6 to the upper part of the crossbar 4.

Chaque élément de suspension est articulé d'une part sur la boîte d'essieu 14 et d'autre part sur la traverse 4. Cette articulation se fait par le montage des éléments de suspension sur des étriers prévus d'une part sur la boîte d'essieu 14 et d'autre part sur la traverse 4 en regard de la boîte d'essieux 14. Un étrier est formé par deux flasques 26 espacés l'un de l'autre selon la direction transversale et portant chacun un logement 28 de réception d'un axe d'articulation 30 porté par un élément de suspension 18, 20, 22, comme représenté sur la figure 1.Each suspension element is articulated on the one hand on the axle box 14 and on the other hand on the crossbar 4. This articulation is done by mounting the suspension elements on brackets provided on the one hand on the box axle 14 and secondly on the crossbar 4 opposite the axle box 14. A stirrup is formed by two flanges 26 spaced apart from each other in the transverse direction and each carrying a housing 28 for receiving of a hinge pin 30 carried by a suspension element 18, 20, 22, as shown in FIG. figure 1 .

Ainsi, l'élément de suspension inférieur 18 est articulé sur un étrier inférieur 32 de la boîte d'essieu 14, l'étrier inférieur 32 s'étendant sous l'essieu 6. L'élément de suspension inférieur 18 est articulé autour d'un axe B sensiblement parallèle à l'axe A de l'essieu 6, c'est-à-dire s'étendant selon la direction transversale, et s'étendant sensiblement dans le même plan vertical que l'axe A de l'essieu 6. L'élément d'articulation inférieur 18 est en outre articulé sur un ou deux étriers 34 prévus sur la partie inférieure de la traverse 4, en regard de l'étrier inférieur 32, autour d'un axe C sensiblement transversal s'étendant sensiblement dans le même plan horizontal que l'axe B autour duquel l'élément de suspension inférieur 18 est articulé sur l'étrier inférieur 32.Thus, the lower suspension element 18 is articulated on a lower yoke 32 of the axle box 14, the lower yoke 32 extending under the axle 6. The lower suspension element 18 is articulated around an axis B substantially parallel to the axis A of the axle 6, that is to say extending in the transverse direction, and extending substantially in the same vertical plane as the axis A of the axle 6. The lower articulation element 18 is further articulated on one or two stirrups 34 provided on the lower part of the crossbar 4, facing the lower stirrup 32, about a substantially transverse axis C extending substantially in the same horizontal plane as the axis B around which the lower suspension element 18 is articulated on the lower yoke 32.

Selon le mode de réalisation représenté sur la figure 1, l'élément de suspension inférieur 18 est formé par une bielle 36 de forme sensiblement triangulaire, articulée en deux points, formés par deux étriers 34, sur la partie inférieure de la traverse 4 et en un point, formé par l'étrier inférieur 32, à la partie inférieure de l'essieu 6. Une telle bielle 36 de forme triangulaire permet de reprendre à la fois les efforts s'exerçant selon la direction longitudinale et les efforts s'exerçant selon la direction transversale.According to the embodiment shown on the figure 1 , the lower suspension element 18 is formed by a connecting rod 36 of substantially triangular shape, articulated at two points, formed by two stirrups 34, on the lower part of the crossbar 4 and at a point formed by the lower stirrup 32 at the lower part of the axle 6. Such a rod 36 of triangular shape allows to take up both the forces exerted in the longitudinal direction and the forces exerted in the transverse direction.

Selon un autre mode de réalisation, représenté sur les figures 2, 4 et 5, l'élément de suspension inférieur 18 est formé par une bielle 35 sensiblement rectiligne, articulée en un point, formé par un seul étrier 34, sur la partie inférieure de la traverse 4 et en un point, formé par l'étrier inférieur 32, sur la partie inférieure de l'essieu 6. Cette bielle rectiligne permet de reprendre les efforts selon la direction longitudinale. Dans ce mode de réalisation, les moyens de suspensions comprennent en outre une bielle latérale 33 s'étendant sensiblement transversalement au-dessus de l'essieu 6 et articulée d'une part sur la boîte d'essieux 14 et d'autre par sur un élément solidaire de la traverse 4, tels qu'une partie des moyens de motorisation 10. La bielle latérale 33 permet alors de reprendre les efforts transversaux.According to another embodiment, shown in figures 2 , 4 and 5 the lower suspension element 18 is formed by a substantially straight rod articulated at one point, formed by a single bracket 34, on the lower part of the crossbar 4 and at a point formed by the lower bracket 32, on the lower part of the axle 6. This rectilinear rod allows to resume the efforts in the longitudinal direction. In this embodiment, the suspension means further comprise a lateral rod 33 extending substantially transversely above the axle 6 and articulated on the one hand on the axle box 14 and on another by a integral element of the cross member 4, such as a part of the drive means 10. The lateral rod 33 then allows to take the transverse forces.

L'élément de suspension supérieur 20 est articulé sur un étrier supérieur 38 de la boîte d'essieux 14, l'étrier supérieur 38 s'étendant au-dessus de l'essieu 6, en regard de l'étrier inférieur 32. L'élément de suspension supérieur 20 est articulé autour d'un axe D sensiblement transversal et s'étendant sensiblement dans le même plan vertical que l'axe A de l'essieu 6. L'élément de suspension supérieur 20 est en outre articulé sur un étrier 40 prévu sur la partie supérieure de la traverse 4, en regard de l'étrier supérieur 38, autour d'un axe E sensiblement transversal et s'étendant sensiblement dans le même plan vertical que l'axe C autour duquel l'élément de suspension inférieur 18 est articulé sur la traverse 4The upper suspension element 20 is hinged to an upper yoke 38 of the axle box 14, the upper yoke 38 extending above the axle 6, opposite the lower caliper 32. The upper suspension element 20 is articulated about a substantially transverse axis D and extending substantially in the same vertical plane as the axis A of the axle 6. The upper suspension element 20 is further articulated on a bracket 40 provided on the upper part of the crossbar 4, facing the upper stirrup 38, about a substantially transverse axis E and extending substantially in the same vertical plane as the axis C around which the lower suspension element 18 is articulated on the crossbar 4

Selon le mode de réalisation représenté sur les figures 1, 2 et 4, l'élément de suspension supérieur 20 est formé par une bielle 42 sensiblement rectiligne articulée en un point, formé par l'étrier 40, sur la partie supérieure de la traverse 4 et en un point, formé par l'étrier supérieur 38, sur la partie supérieure de l'essieu 6.According to the embodiment shown on the Figures 1, 2 and 4 the upper suspension element 20 is formed by a substantially rectilinear connecting rod 42 articulated at one point, formed by the stirrup 40, on the upper part of the crossmember 4 and at a point formed by the upper stirrup 38, on the upper part of the axle 6.

Selon le mode de réalisation représenté sur la figure 3, l'élément de suspension supérieur 20 est formé par un vérin 44 articulé en un point, formé par l'étrier 40, sur la partie supérieure de la traverse 4 et en un point, formé par l'étrier supérieur 38, sur la partie supérieure de l'essieu 6. Le vérin 44 comprend un corps 46 et une tige 48 mobile en translation par rapport au corps 44. Le corps 44 est articulé sur la partie supérieure de l'essieu 6 et la tige 48 est articulée sur la partie supérieure de la traverse 4. Selon ce mode de réalisation, l'élément de suspension supérieur 22 permet d'orienter l'essieu 6 par rapport à la traverse 4 en courbe grâce au déplacement de la tige 48 par rapport au corps 46.According to the embodiment shown on the figure 3 , the upper suspension element 20 is formed by a jack 44 articulated at one point, formed by the stirrup 40, on the upper part of the crossbar 4 and at a point, formed by the upper stirrup 38, on the part upper axle 6. The cylinder 44 comprises a body 46 and a rod 48 movable in translation relative to the body 44. The body 44 is articulated on the upper part of the axle 6 and the rod 48 is articulated on the part 4. According to this embodiment, the upper suspension element 22 makes it possible to orient the axle 6 with respect to the crossbar 4 in curve thanks to the displacement of the rod 48 with respect to the body 46.

L'élément de suspension diagonal 22 est articulé sur un étrier intermédiaire 49 de la boîte d'essieu 14. L'étrier intermédiaire 49 s'étend entre les étriers inférieur 32 et supérieur 38 au niveau de l'essieu 6. L'élément de suspension diagonal 22 est articulé autour d'un axe F sensiblement transversal, s'étendant dans un plan vertical, compris entre le plan vertical passant par l'axe A de l'essieu 6 et le plan vertical passant par les axes C et E, autour desquels les éléments de suspension inférieur 18 et supérieur 20 sont articulés sur la traverse 4. Selon le mode de réalisation représenté sur les figures, l'étrier intermédiaire 49 est formé par les mêmes flasques 26 qui forment l'étrier inférieur 34, lesdits flasques comprenant donc chacun deux logements 28 de réception axes d'articulation. L'élément de suspension diagonal 22 est en outre articulé sur un étrier 50 prévu sur la partie supérieure de la traverse 4, sous l'étrier 40 sur lequel est articulé l'élément de suspension supérieur 20, autour d'un axe G sensiblement transversal et s'étendant sensiblement dans le même plan vertical que les axes C et E autour desquels sont articulés les éléments de suspension inférieur 18 et supérieur 20. Selon le mode de réalisation représenté sur les figures, l'étrier 50 est formé par les mêmes flasques 26 qui forment l'étrier 40, lesdits flasques comprenant donc chacun deux logements 28 de réception d'axes d'articulation.The diagonal suspension element 22 is articulated on an intermediate bracket 49 of the axle box 14. The intermediate bracket 49 extends between the lower and upper stirrups 32 at the level of the axle 6. The diagonal suspension 22 is articulated about a substantially transverse axis F, extending in a vertical plane, between the vertical plane passing through the axis A of the axle 6 and the vertical plane passing through the axes C and E, around which the lower suspension elements 18 and upper 20 are articulated on the crossbar 4. According to the embodiment shown in the figures, the intermediate stirrup 49 is formed by the same flanges 26 which form the lower stirrup 34, said flanges thus each comprising two receptacles 28 for receiving hinge pins. The diagonal suspension element 22 is further articulated on a stirrup 50 provided on the upper part of the crossbar 4, under the stirrup 40 on which is articulated the upper suspension element 20, about a substantially transverse axis G and extending substantially in the same vertical plane as the axes C and E around which are articulated the lower suspension elements 18 and upper 20. According to the embodiment shown in the figures, the stirrup 50 is formed by the same flanges 26 who form the stirrup 40, said flanges each comprising two housing 28 for receiving hinge pins.

Selon le mode de réalisation représenté sur les figures 1, 2 et 3, l'élément de suspension diagonal 22 est formé par une bielle flexible 52 munie d'un ressort 54 articulée en un point, formé par l'étrier intermédiaire 49, sur la partie inférieure de l'essieu 6 et en un point, formé par l'étrier 50, sur la partie supérieure de la traverse 4.According to the embodiment shown on the Figures 1, 2 and 3 , the diagonal suspension element 22 is formed by a flexible connecting rod 52 provided with a spring 54 articulated at one point, formed by the intermediate stirrup 49, on the lower part of the axle 6 and at a point formed by the stirrup 50, on the upper part of the crossbar 4.

Selon le mode de réalisation représenté sur la figure 4, l'élément de suspension diagonal 22 est formé par une bielle 56 sensiblement rectiligne articulée en un point, formé par l'étrier intermédiaire 49, sur la partie inférieure de l'essieu 6 et en un point, formé par l'étrier 50, sur la partie supérieure de la traverse 4.According to the embodiment shown on the figure 4 the diagonal suspension element 22 is formed by a substantially rectilinear connecting rod 56 articulated at one point, formed by the intermediate stirrup 49, on the lower part of the axle 6 and at a point formed by the stirrup 50, on the upper part of the crossbar 4.

L'élément de suspension inférieur 18 et l'élément de suspension diagonal 22 forment les moyens de suspension permettant d'amortir les déformations, telles que les gauches de voies. La raideur de la suspension est réglée grâce à la raideur du ressort 54 de la bielle flexible 52 formant l'élément de suspension diagonal. Dans le mode de réalisation dans lequel l'élément de suspension diagonal est formé par une bielle rectiligne 56, la raideur de la suspension est réglée par la raideur des articulations entre les éléments de suspension inférieur 18 et diagonal 22 et la traverse 4 et la boîte d'essieu 14.The lower suspension element 18 and the diagonal suspension element 22 form the suspension means for damping the deformations, such as left lanes. The stiffness of the suspension is adjusted by the stiffness of the spring 54 of the flexible rod 52 forming the diagonal suspension element. In the embodiment in which the diagonal suspension element is formed by a straight rod 56, the stiffness of the suspension is regulated by the stiffness of the joints between the lower suspension elements 18 and diagonal 22 and the crossbar 4 and the box axle 14.

L'élément de suspension supérieur 20 forme, quant à lui, des moyens de blocage en rotation de la boîte d'essieu 14 et empêche la boîte d'essieu 14 d'être entraînée en rotation avec l'essieu 6.The upper suspension element 20 forms, meanwhile, means for locking the axle box 14 in rotation and prevents the axle box 14 from being rotated with the axle 6.

Les matériaux formant les bielles décrites ci-dessus sont choisis pour avoir des caractéristiques mécaniques satisfaisantes pour reprendre les efforts longitudinaux et transversaux de façon efficace. Ces matériaux sont par exemple choisis parmi l'acier, les alliages légers, les matériaux composites.The materials forming the connecting rods described above are chosen to have satisfactory mechanical characteristics to take the longitudinal and transverse forces efficiently. These materials are for example selected from steel, light alloys, composite materials.

Le bogie décrit ci-dessus présente une masse inférieure aux bogies classiques du fait de la simplicité de la structure du châssis 2. Les moyens de suspensions 16 permettent de transférer les efforts de façon efficace vers le centre du châssis 2, formé par la traverse 4. En outre, les éléments de suspension formant ces moyens de suspension sont simples à réaliser et ne présentent pas une structure complexe.The bogie described above has a mass lower than conventional bogies because of the simplicity of the structure of the frame 2. The suspension means 16 can transfer the forces effectively to the center of the frame 2, formed by the cross 4 In addition, the suspension elements forming these suspension means are simple to produce and do not have a complex structure.

Claims (10)

Bogie (1) de véhicule ferroviaire comprenant : - un châssis (2) comprenant une traverse (4) s'étendant sensiblement transversalement destinée à supporter des équipements fonctionnels du bogie, - au moins un essieu (6) s'étendant sensiblement transversalement parallèlement à la traverse (4) et monté en rotation par rapport au châssis (2), une roue (8) étant montée sur chacune des parties extrêmes transversales dudit essieu (6), - des moyens de suspensions (16) fixant l'essieu (6) au châssis (2), caractérisé en ce que les moyens de suspensions (16) comprennent trois éléments de suspension (18, 20, 22) : - un élément de suspension inférieur (18), reliant une partie inférieure de l'essieu (6) à une partie inférieure de la traverse (4), - un élément de suspension supérieur (20), reliant une partie supérieure de l'essieu (6) à une partie supérieure de la traverse (4), et - un élément de suspension diagonal (22) s'étendant entre l'élément de suspension inférieur (18) et l'élément de suspension supérieur (20) et reliant la partie inférieure de l'essieu (6) à la partie supérieure de la traverse (4). Bogie (1) of a railway vehicle comprising: - a frame (2) comprising a cross member (4) extending substantially transversely for supporting functional equipment of the bogie, - at least one axle (6) extending substantially transversely parallel to the cross member (4) and rotatably mounted relative to the frame (2), a wheel (8) being mounted on each of the transverse end portions of said axle (6) , suspension means (16) fixing the axle (6) to the chassis (2), characterized in that the suspension means (16) comprises three suspension elements (18, 20, 22): a lower suspension element (18) connecting a lower part of the axle (6) to a lower part of the crossbar (4), an upper suspension element (20), connecting an upper part of the axle (6) to an upper part of the crossbar (4), and a diagonal suspension element (22) extending between the lower suspension element (18) and the upper suspension element (20) and connecting the lower part of the axle (6) to the upper part of the crossbar (4). Bogie selon la revendication 1, dans lequel l'élément de suspension inférieur (18) est formé par une bielle (36) de forme sensiblement triangulaire, articulée en deux points sur la partie inférieure de la traverse (4) et en un point sur la partie inférieure de l'essieu (6).Bogie according to claim 1, wherein the lower suspension element (18) is formed by a connecting rod (36) of substantially triangular shape articulated at two points on the lower part of the cross member (4) and at a point on the lower part of the axle (6). Bogie selon la revendication 1, dans lequel l'élément de suspension inférieur (18) est formé par une bielle (35) sensiblement rectiligne articulée en un point sur la partie inférieure de la traverse (4) et en un point sur la partie inférieure de l'essieu (6), les moyens de suspension (16) comprenant en outre une bielle latérale (33) s'étendant sensiblement transversalement au-dessus de l'essieu (6) entre la partie supérieure de l'essieu (6) et un élément lié à la traverse (4).Bogie according to claim 1, wherein the lower suspension element (18) is formed by a substantially straight rod (35) articulated at a point on the lower part of the cross member (4) and at a point on the lower part of the the axle (6), the suspension means (16) further comprising a lateral rod (33) extending substantially transversely above the axle (6) between the upper part of the axle (6) and an element connected to the cross member (4). Bogie selon l'une quelconque des revendications 1 à 3, dans lequel l'élément de suspension supérieur (20) est formé par une bielle (42) sensiblement rectiligne articulée en un point sur la partie supérieure de la traverse (4) et en un point sur la partie supérieure de l'essieu (6).Bogie according to any one of claims 1 to 3, wherein the upper suspension element (20) is formed by a substantially straight rod (42) articulated at a point on the upper part of the crossbar (4) and in a point on the upper part of the axle (6). Bogie selon l'une quelconque des revendications 1 à 3, dans lequel l'élément de suspension supérieur (20) est formé par un vérin (44) articulé en un point sur la partie supérieure de la traverse (4) et en un point sur la partie supérieure de l'essieu (6), ledit vérin (44) comprenant un corps (46) et une tige (48) mobile en translation par rapport au corps (46), le corps (46) étant articulé sur la partie supérieure de l'un de l'essieu (6) ou de la traverse (4), la tige (48) étant articulée sur la partie supérieure de l'autre de l'essieu (6) ou de la traverse (4).Bogie according to any one of claims 1 to 3, wherein the upper suspension element (20) is formed by a jack (44) articulated at a point on the upper part of the cross member (4) and at a point on the upper part of the axle (6), said jack (44) comprising a body (46) and a rod (48) movable in translation relative to the body (46), the body (46) being articulated on the upper part of one of the axles (6) or the crossbar (4), the rod (48) being hinged to the upper part of the other axle (6) or the crossbar (4). Bogie selon l'une quelconque des revendications 1 à 5, dans lequel l'élément de suspension diagonal (22) est formé par une bielle flexible (52) munie d'un ressort (54) articulée en un point sur la partie inférieure de l'essieu (6) et en un point sur la partie supérieure de la traverse (4).Bogie according to any one of claims 1 to 5, wherein the diagonal suspension element (22) is formed by a flexible connecting rod (52) provided with a spring (54) articulated at a point on the lower part of the axle (6) and at a point on the upper part of the crossbar (4). Bogie selon l'une quelconque des revendications 1 à 5, dans lequel l'élément de suspension diagonal (22) est formé par une bielle (56) sensiblement rectiligne articulée en un point sur la partie inférieure de l'essieu (6) et en un point sur la partie supérieure de la traverse (4).Bogie according to any one of claims 1 to 5, wherein the diagonal suspension element (22) is formed by a substantially rectilinear connecting rod (56) articulated at a point on the lower part of the axle (6) and in a point on the upper part of the crossbar (4). Bogie selon l'une quelconque des revendications 1 à 7, dans lequel l'essieu (6) comprend au moins une boîte d'essieu (14) disposée au voisinage d'une roue (8), dans lequel l'essieu (6) est monté en rotation, les trois éléments de suspension (18, 20, 22) étant articulés sur ladite boîte d'essieu (14).Bogie according to any one of claims 1 to 7, wherein the axle (6) comprises at least one axle box (14) disposed in the vicinity of a wheel (8), in which the axle (6) is rotatably mounted, the three suspension members (18, 20, 22) being hinged to said axle box (14). Bogie selon la revendication 8, dans lequel la boîte d'essieu (14) comprend un étrier supérieur (38) s'étendant au-dessus de l'essieu (6), l'élément de suspension supérieur (20) étant articulé sur ledit étrier supérieur (38), un étrier inférieur (24) s'étendant en dessous de l'essieu (6) en regard de l'étrier supérieur (38), l'élément de suspension inférieur (18) étant articulé sur ledit étrier inférieur (24), et un étrier intermédiaire (49) s'étendant en dessous de l'essieu (6) entre l'étrier supérieur (38) et l'étrier inférieur (24), l'élément de suspension diagonal (22) étant articulé sur ledit étrier intermédiaire (49).Bogie according to claim 8, wherein the axle box (14) comprises an upper yoke (38) extending above the axle (6), the upper suspension member (20) being hinged to said upper yoke (38), a lower caliper (24) extending below the axle (6) facing the upper caliper (38), the lower suspension member (18) being hinged to said lower caliper (24), and an intermediate yoke (49) extending below the axle (6) between the upper yoke (38) and the lower yoke (24), the diagonal suspension member (22) being articulated on said intermediate stirrup (49). Bogie selon l'une quelconque des revendications 1 à 9, dans lequel le bogie comprend deux essieux (6) s'étendant de part et d'autre de la traverse (4) du châssis (2), chaque essieu (6) étant fixé au châssis (2) par des moyens de suspension (16) comprenant trois éléments de suspension (18, 20, 22) reliant l'essieu (6) à la traverse (4) au voisinage de chaque roue (8).Bogie according to any one of claims 1 to 9, wherein the bogie comprises two axles (6) extending on either side of the cross member (4) of the frame (2), each axle (6) being fixed to the chassis (2) by suspension means (16) comprising three suspension elements (18, 20, 22) connecting the axle (6) to the crossbar (4) in the vicinity of each wheel (8).
EP20120305064 2011-01-17 2012-01-17 Suspended railway vehicle bogie Active EP2476600B1 (en)

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EP3222486A1 (en) * 2016-03-25 2017-09-27 ALSTOM Transport Technologies Railway vehicle bogie comprising a lowered body
EP3222485A1 (en) * 2016-03-25 2017-09-27 ALSTOM Transport Technologies Railway vehicle bogie comprising an offset primary suspension device
FR3049254A1 (en) * 2016-03-25 2017-09-29 Alstom Transp Tech RAIL VEHICLE BOGY COMPRISING A DECAL PRIMARY SUSPENSION DEVICE
FR3049253A1 (en) * 2016-03-25 2017-09-29 Alstom Transp Tech RAILWAY VEHICLE BOGIE COMPRISING A LOWER CHASSIS
WO2021233680A1 (en) * 2020-05-18 2021-11-25 Siemens Mobility GmbH Running gear for a rail vehicle

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ES2442216T3 (en) 2014-02-10
CN102673597B (en) 2016-02-24
EP2476600B1 (en) 2013-12-25
RU2578948C2 (en) 2016-03-27
FR2970457B1 (en) 2013-02-15
RU2012101411A (en) 2013-07-27
CN102673597A (en) 2012-09-19
FR2970457A1 (en) 2012-07-20

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