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EP2258597A1 - Railway Bogie - Google Patents

Railway Bogie Download PDF

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Publication number
EP2258597A1
EP2258597A1 EP10305582A EP10305582A EP2258597A1 EP 2258597 A1 EP2258597 A1 EP 2258597A1 EP 10305582 A EP10305582 A EP 10305582A EP 10305582 A EP10305582 A EP 10305582A EP 2258597 A1 EP2258597 A1 EP 2258597A1
Authority
EP
European Patent Office
Prior art keywords
bogie
frame
axle
relative
wheels
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
Application number
EP10305582A
Other languages
German (de)
French (fr)
Other versions
EP2258597B1 (en
Inventor
Alain Rodet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Transport SA
Original Assignee
Alstom Transport SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom Transport SA filed Critical Alstom Transport SA
Priority to PL10305582T priority Critical patent/PL2258597T3/en
Publication of EP2258597A1 publication Critical patent/EP2258597A1/en
Application granted granted Critical
Publication of EP2258597B1 publication Critical patent/EP2258597B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • 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
    • B61F3/00—Types of bogies
    • B61F3/02—Types of bogies with more than one axle
    • B61F3/04—Types of bogies with more than one axle with driven axles or wheels

Definitions

  • the present invention relates to a railway vehicle bogie of the type comprising two pairs of wheels, the wheels of a pair being connected to each other by a shaft to form an axle, said axles being connected to each other. another by a frame comprising two half-frames, each half-frame comprising two longitudinal members connected to each other by a cross member, said longitudinal members resting on one of said axles, the cross members of the half-chassis being hinged relative to each other; to the other by a hinge means so as to allow a rotation of a half-frame relative to the other about a substantially longitudinal axis.
  • the invention also relates to a railway vehicle comprising such a bogie.
  • the bogie When the bogie is of the "rigid chassis” type, it is mainly the flexibility of the suspension between the axles and the bogie frame which makes it possible to limit the wheel unloadings when crossing the left lanes.
  • the bogie When the bogie is of "articulated frame” type, such as for example the bogie described in the document EP 0 409 128 it is the articulation of two half-frames around a transverse axis which makes it possible to limit the wheel discharges induced by the track defects.
  • a rigid chassis requires the presence of a primary suspension, that is to say a suspension disposed between the axles and the bogie frame, to resume the left, suspension which is cumbersome and heavy.
  • a primary suspension that is to say a suspension disposed between the axles and the bogie frame, to resume the left, suspension which is cumbersome and heavy.
  • An articulated chassis may not have primary suspensions because the deformations under the left are taken up by the articulation of the chassis. This solution thus makes it possible to gain weight and is economically more interesting.
  • the chassis of the bogie is of the "outside” type, when the longitudinal members are arranged outside the wheels, generally while resting on axle boxes disposed outside the wheels or on the contrary of the "inside” type when the longitudinal members are arranged inside the wheels, that is to say between the wheels, on axle boxes also arranged inside the wheels.
  • An internal chassis reduces truck mass and reduces manufacturing costs.
  • Such a frame also accommodates the brake calipers outside the frame, which improves the accessibility to these stirrups for possible disassembly.
  • the outer frame is more bulky and adds a significant mass to the rail vehicle. However, it makes it possible to accommodate a larger and more powerful engine between the wheels, since the axle boxes located on the outside of the wheels free up space between the wheels.
  • One of the aims of the invention is to overcome these disadvantages by providing a compact bogie and reduced mass.
  • the invention relates to a bogie of the aforementioned type, in which each spar of a half-frame is connected to a spar of the other half-frame by a rod mounted articulated about substantially transverse axes on said longitudinal members, said connecting rod extending at least partly in a horizontal plane offset in height relative to the horizontal plane passing through the hinge means.
  • the invention also relates to a railway vehicle comprising at least one bogie as described above.
  • a horizontal plane is substantially parallel to the plane in which the axles extend and the vertical plane is substantially parallel to the plane in which the wheels extend.
  • the term “longitudinal” is defined with respect to the direction in which a railway vehicle extends in a horizontal plane and the term “transverse” is defined in a direction substantially perpendicular to the longitudinal direction in a horizontal plane.
  • a bogie 1 of a railway vehicle (not shown), for example a subway, is described.
  • the bogie 1 comprises two pairs of wheels 2, the wheels 2 of each pair being connected to each other by shaft to form an axle 4.
  • the axles 4 are connected to one another by a frame 6, said inner, comprising two half-frames 8 each secured to an axle 4.
  • inner frame means that the frame 6 extends substantially between the wheels 2 according to the cross direction without “overflowing" them.
  • Each half-frame 8 comprises two longitudinal members 10, extending substantially longitudinally, connected to each other by a cross member 12, extending substantially transversely.
  • Each spar 10 rests on the axle boxes 14 of an axle 4, said axle boxes 14 being disposed substantially against the wheels 2 of the axle 4 between said wheels 2.
  • the cross member 12 extends to a lower height to that of the longitudinal members 10, as shown in Fig. 2 , which allows to clear a larger space between the two axles 4 of the truck 1.
  • the crosspieces 12 of the half-frames 8 are articulated to one another by a hinge joint 18, or ball joint, so as to allow rotation of a half-frame 8 relative to the other around a substantially longitudinal axis A, said rotation to adapt to the left bogie suffered.
  • the joint may be of the dry spherical ball type or of the spherical or cylindrical rubber joint type. This ball joint blocks the three translations along the substantially longitudinal axes A, transverse Y and vertical Z of the two half-frames relative to each other.
  • the longitudinal members 10 of the half-frame 8 facing each other are connected to one another by two connecting rods 20 so as to block the relative rotations of the two half-frames about the substantially vertical axes Z and substantially transverse Y passing through the joint. 18.
  • the two half-chassis are then held together so that the axles remain parallel and the bogie 1 does not fold on itself under the effect of the vertical load.
  • the two half-chassis can rotate relative to one another about the substantially longitudinal axis A to accept the left-hand lanes.
  • connection points of the two connecting rods 20 to the longitudinal members 10 are positioned in a horizontal plane offset from the horizontal plane passing through the hinge joint 18.
  • the connection points two rods 20 are positioned in a horizontal plane extending above the horizontal plane passing through the joint 18.
  • connection points of the two rods extending in a plane extending below the horizontal plane passing through the hinge joint 18.
  • the rods are also spaced in the direction transverse to each other. The difference in height H between the horizontal plane of the connection points of the rods 20 and the horizontal plane passing through the hinge joint 18 must be sufficient to limit the forces experienced by these rods 20 and the hinge joint 18 under the effect of the vertical load.
  • This distance H must be approximately equal to at least 1/6 of the truck's wheelbase.
  • the spacing L between the two connecting rods must be sufficient to limit the forces experienced by these rods and the hinge joint, under the effect of curved registration efforts, for example.
  • the spacing shall be approximately 1/3 of the bogie wheelbase for a bogie running on a normal gauge track, that is to say having a track gauge of approximately 1435 mm .
  • the rods 20 are connected to the longitudinal members 10, by hinges 21, mainly around substantially transverse axes, in order to allow the desired main freedom of the two half-chassis 8 relative to each other to cross the left lanes .
  • the joints 21 of the connecting rods can be of the dry spherical ball type or of the spherical or cylindrical rubber articulation type.
  • the rods 20 have for example a stirrup shape allowing the housing of a secondary suspension 22 in each of said rods 20.
  • This is called “integrated" secondary suspension in each rod 20, as shown in FIG. figure 1 .
  • each connecting rod 20 is composed of two elements, a first stirrup-shaped element 23 connected by the joints 21 to the longitudinal members 10, and a second element 25 which is arranged on the two upper parts of the stirrup 23 and which connects said parts together.
  • the function of this second element 25 is to avoid the spacing of the stirrup under the effect of the longitudinal forces generated by the secondary suspension 22.
  • the secondary suspensions 22 allow a relative vertical displacement of the bogie 1 relative to the railway vehicle on which said bogie 1 is mounted.
  • the secondary suspension 22 may be of the pneumatic type or of the elastomer suspension type.
  • the connecting rods 20 are made in the form of bars 27 connecting the longitudinal members 10 of the half-frames 8 to each other and connected to these longitudinal members by the hinges 21.
  • the half-frames 8 comprise plates 29 arranged projecting in the transverse direction by compared to rods 20, as shown in figure 3 . That is to say that the plates 29 are disposed beyond the space between the connecting rods 20.
  • the plates 29 extend for example substantially to the level of the wheels 2. These plates 29 receive the secondary suspensions 22.
  • the bogie described above can be a motor, that is to say that at least one of the axles 4 is rotated by a motor 24. According to the embodiment shown in FIG. Fig. 2 , only one axle is driven by a motor 24, while according to the embodiment shown on the Fig. 1 or 3 the two axles 4 of the bogie 1 are each driven by a motor 24.
  • the motor 24 is for example fixed relative to the chassis 6 of the bogie 1, fixed for example to a crosspiece 12 of a half-frame 8 by a fixing bracket 26 and extends in the vicinity of the axle 4 that it drives substantially between the two wheels 2.
  • axle boxes 14 In the case of a powerful and bulky engine, the axle boxes 14 will be disposed outside the wheels and the half-chassis will be spaced in the transverse direction to rest on these axle boxes.
  • a primary suspension 16 which only takes up the vertical deflections is interposed between each spar 10 and the axle box 14 on which said spar 10 rests.
  • the primary suspension 16 is here produced by an assembly consisting of two articulations 30 of cylindrical rubber type for example, respectively arranged between the crosspiece 12 and each axle box 14, which materialize a transverse axis of rotation of the axle 4 relative to to the bogie half-frame 8, and two rubber pads 32 for example placed respectively between the spar 10 of the half-frame 8 and each axle box 14.
  • This primary suspension 16 allows a displacement vertical relative of the axle 4 relative to the half-frame 8, that is to say that the axle 4 is suspended relative to the frame in a substantially vertical direction.
  • the primary suspension 16 is particularly compact.
  • the fact of providing a chassis comprising simple primary suspensions only taking up the vertical movements and an articulation between the two half-chassis 8 taking the left plugs, makes it possible to dispense with a complex suspension taking all these movements of the bogie. This saves space and makes it easier to house a geared motor unit between the wheels of the bogie.
  • the primary suspension has the particular advantage of allowing a reduction of suspended masses, especially in the case of a motorized bogie.
  • the bogie can also be a carrier, that is to say that none of its axles is rotated.
  • the frame may not include a primary suspension, the passage of the left being taken up by the hinge 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Agricultural Machines (AREA)
  • Handcart (AREA)

Abstract

Ce bogie comprend deux paires de roues (2), les roues (2) d'une paire étant reliées l'une à l'autre par un arbre pour former un essieu (4), lesdits essieux (4) étant reliés l'un à l'autre par deux demi-châssis (8) comprenant chacun deux longerons (10) reliés l'un à l'autre par une traverse (12), lesdits longerons (10) reposant sur un desdits essieux (4), les traverses (10) des demi-châssis (8) étant articulées par un moyen d'articulation (18) de sorte à permettre une rotation d'un demi-châssis (8) par rapport à l'autre autour d'un axe (A) sensiblement longitudinal. Chaque longeron (10) d'un demi-châssis (8) est relié à un longeron (10) de l'autre demi-châssis (8) par une bielle (20) montée de façon articulée autour d'axes transversaux sur lesdits longerons (10), ladite bielle (20) s'étendant au moins en partie dans un plan horizontal décalé en hauteur par rapport au plan horizontal passant par le moyen d'articulation (18).This bogie comprises two pairs of wheels (2), the wheels (2) of a pair being connected to each other by a shaft to form an axle (4), said axles (4) being connected to one another. to the other by two half-frames (8) each comprising two longitudinal members (10) connected to each other by a cross member (12), said longitudinal members (10) resting on one of said axles (4), the sleepers (10) half-frames (8) being articulated by a hinge means (18) so as to allow rotation of a half-frame (8) relative to the other about an axis (A) substantially longitudinal. Each spar (10) of a half-frame (8) is connected to a spar (10) of the other half-frame (8) by a connecting rod (20) hingedly mounted about transverse axes on said spars (10), said rod (20) extending at least partly in a horizontal plane offset in height relative to the horizontal plane passing through the hinge means (18).

Description

La présente invention concerne un bogie de véhicule ferroviaire du type comprenant deux paires de roues, les roues d'une paire étant reliées l'une à l'autre par un arbre pour former un essieu, lesdits essieux étant reliés l'un à l'autre par un châssis comprenant deux demi-châssis, chaque demi-châssis comprenant deux longerons reliés l'un à l'autre par une traverse, lesdits longerons reposant sur un desdits essieux, les traverses des demi-châssis étant articulées l'une par rapport à l'autre par un moyen d'articulation de sorte à permettre une rotation d'un demi-châssis par rapport à l'autre autour d'un axe sensiblement longitudinal.The present invention relates to a railway vehicle bogie of the type comprising two pairs of wheels, the wheels of a pair being connected to each other by a shaft to form an axle, said axles being connected to each other. another by a frame comprising two half-frames, each half-frame comprising two longitudinal members connected to each other by a cross member, said longitudinal members resting on one of said axles, the cross members of the half-chassis being hinged relative to each other; to the other by a hinge means so as to allow a rotation of a half-frame relative to the other about a substantially longitudinal axis.

L'invention concerne également un véhicule ferroviaire comprenant un tel bogie.The invention also relates to a railway vehicle comprising such a bogie.

Les bogies de véhicules ferroviaires doivent pouvoir franchir des gauches, c'est-à-dire pouvoir présenter des points d'appuis au sol qui ne sont pas dans un même plan de roulement, car les voies peuvent présenter des défauts, appelés « gauches ».Railway bogies must be able to cross lefts, ie they can have ground support points that are not in the same running plane, because the tracks may have defects, called "left" .

Lorsque le bogie est de type « châssis rigide », c'est principalement la souplesse de la suspension entre les essieux et le châssis de bogie qui permet de limiter les déchargements de roue lors de franchissement de gauches de voie. Lorsque le bogie est de type « châssis articulé », comme par exemple le bogie décrit dans le document EP 0 409 128 , c'est l'articulation de deux demi-châssis autour d'un axe transversal qui permet de limiter les déchargements de roue induits par les défauts de voie.When the bogie is of the "rigid chassis" type, it is mainly the flexibility of the suspension between the axles and the bogie frame which makes it possible to limit the wheel unloadings when crossing the left lanes. When the bogie is of "articulated frame" type, such as for example the bogie described in the document EP 0 409 128 it is the articulation of two half-frames around a transverse axis which makes it possible to limit the wheel discharges induced by the track defects.

Un châssis rigide exige cependant la présence d'une suspension primaire, c'est-à-dire d'une suspension disposée entre les essieux et le châssis de bogie, pour reprendre les gauches, suspension qui est encombrante et lourde. Un châssis articulé peut ne pas présenter de suspensions primaires car les déformations sous gauches sont reprises par l'articulation du châssis. Cette solution permet ainsi de gagner du poids et est économiquement plus intéressante.A rigid chassis, however, requires the presence of a primary suspension, that is to say a suspension disposed between the axles and the bogie frame, to resume the left, suspension which is cumbersome and heavy. An articulated chassis may not have primary suspensions because the deformations under the left are taken up by the articulation of the chassis. This solution thus makes it possible to gain weight and is economically more interesting.

Le châssis du bogie est soit du type « extérieur », lorsque les longerons sont disposés à l'extérieur des roues, en général en reposant sur des boites d'essieu disposées à l'extérieur des roues ou au contraire du type « intérieur » lorsque les longerons sont disposés à l'intérieur des roues, c'est-à-dire entre les roues, sur des boites d'essieux également disposées à l'intérieur des roues. Un châssis intérieur permet de réduire la masse du bogie et de réduire ses coûts de fabrication. Un tel châssis permet également de loger les étriers de freins à l'extérieur du châssis, ce qui améliore l'accessibilité à ces étriers pour un éventuel démontage.The chassis of the bogie is of the "outside" type, when the longitudinal members are arranged outside the wheels, generally while resting on axle boxes disposed outside the wheels or on the contrary of the "inside" type when the longitudinal members are arranged inside the wheels, that is to say between the wheels, on axle boxes also arranged inside the wheels. An internal chassis reduces truck mass and reduces manufacturing costs. Such a frame also accommodates the brake calipers outside the frame, which improves the accessibility to these stirrups for possible disassembly.

Le châssis extérieur est plus encombrant et ajoute une masse importante au véhicule ferroviaire. Cependant, il permet de loger un moteur plus gros et plus puissant entre les roues, puisque les boites d'essieux situées à l'extérieur des roues libère de la place entre les roues.The outer frame is more bulky and adds a significant mass to the rail vehicle. However, it makes it possible to accommodate a larger and more powerful engine between the wheels, since the axle boxes located on the outside of the wheels free up space between the wheels.

L'un des buts de l'invention est de pallier ces inconvénients en proposant un bogie peu encombrant et de masse réduite.One of the aims of the invention is to overcome these disadvantages by providing a compact bogie and reduced mass.

A cet effet, l'invention concerne un bogie du type précité, dans lequel chaque longeron d'un demi-châssis est relié à un longeron de l'autre demi-châssis par une bielle montée de façon articulée autour d'axes sensiblement transversaux sur lesdits longerons, ladite bielle s'étendant au moins en partie dans un plan horizontal décalé en hauteur par rapport au plan horizontal passant par le moyen d'articulation.For this purpose, the invention relates to a bogie of the aforementioned type, in which each spar of a half-frame is connected to a spar of the other half-frame by a rod mounted articulated about substantially transverse axes on said longitudinal members, said connecting rod extending at least partly in a horizontal plane offset in height relative to the horizontal plane passing through the hinge means.

Selon d'autres caractéristiques du bogie :

  • un moteur est fixé à la traverse d'un demi-châssis, ledit moteur s'étendant entre les roues de l'essieu sur lequel repose ledit demi-châssis et entraînant la rotation dudit essieu ;
  • les longerons d'un demi-châssis reposent sur un des essieux par l'intermédiaire d'au moins une suspension primaire permettant un déplacement relatif vertical de l'essieu par rapport au demi-châssis reposant sur ledit essieu ;
  • les longerons de chaque demi-châssis reposent sur des boîtes d'essieu de chaque essieu, lesdites boîtes étant disposées entre les roues dudit essieu ;
  • les longerons de chaque demi-châssis reposent sur des boîtes d'essieu de chaque essieu, lesdites boîtes étant disposées à l'extérieur des roues dudit essieu ;
  • les bielles présentent une forme d'étrier et logent des suspensions secondaires, lesdites suspensions secondaires permettant un déplacement relatif vertical du bogie par rapport au véhicule ferroviaire sur lequel ledit bogie est monté ;
  • les bielles présentent une forme de barreau, les demi-châssis comprenant des platines disposées en saillie selon la direction transversale par rapport aux bielles, lesdites platines supportant des suspensions secondaires, lesdites suspensions secondaires permettant un déplacement relatif vertical du bogie par rapport au véhicule ferroviaire sur lequel ledit bogie est monté ;
  • la différence de hauteur entre le plan horizontal dans lequel s'étendent au moins en partie les bielles et le plan horizontal passant par le joint d'articulation est au minimum égale au 1/6 de l'empattement du bogie ;
  • l'écartement selon la direction transversale entre les deux bielles est approximativement égal au 1/3 de l'empattement du bogie.
According to other characteristics of the bogie:
  • a motor is fixed to the cross member of a half-frame, said motor extending between the wheels of the axle on which said half-frame and causing the rotation of said axle;
  • the longitudinal members of a half-chassis rest on one of the axles by means of at least one primary suspension allowing a relative vertical displacement of the axle relative to the half-chassis resting on said axle;
  • the longitudinal members of each half-chassis rest on axle boxes of each axle, said boxes being disposed between the wheels of said axle;
  • the longitudinal members of each half-chassis rest on axle boxes of each axle, said boxes being disposed outside the wheels of said axle;
  • the rods have a stirrup shape and house secondary suspensions, said secondary suspensions allowing a vertical relative displacement of the bogie relative to the rail vehicle on which said bogie is mounted;
  • the connecting rods have a bar shape, the half-frames comprising plates arranged projecting in the transverse direction relative to the connecting rods, said plates supporting secondary suspensions, said secondary suspensions allowing a relative vertical displacement of the bogie relative to the rail vehicle on which said bogie is mounted;
  • the difference in height between the horizontal plane in which the connecting rods extend at least in part and the horizontal plane passing through the articulation joint is at least equal to 1/6 of the wheelbase of the bogie;
  • the spacing in the transverse direction between the two connecting rods is approximately equal to 1/3 of the wheelbase of the bogie.

L'invention concerne également un véhicule ferroviaire comprenant au moins un bogie tel que décrit ci-dessus.The invention also relates to a railway vehicle comprising at least one bogie as described above.

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 Fig. 1 est une représentation en perspective d'un bogie de véhicule ferroviaire selon un premier mode de réalisation de l'invention,
  • la Fig. 2 est une représentation en perspective d'un bogie selon un autre mode de réalisation de l'invention,
  • la Fig. 3 est une représentation en perspective d'un bogie selon un autre mode de réalisation de l'invention.
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 Fig. 1 is a perspective representation of a railway vehicle bogie according to a first embodiment of the invention,
  • the Fig. 2 is a perspective representation of a bogie according to another embodiment of the invention,
  • the Fig. 3 is a perspective view of a bogie according to another embodiment of the invention.

Dans la description, les termes « vertical » et « horizontal » sont définis par rapport à un bogie monté dans un véhicule ferroviaire. Ainsi, un plan horizontal est sensiblement parallèle au plan dans lequel s'étendent les essieux et le plan vertical est sensiblement parallèle au plan dans lequel s'étendent les roues. Le terme « longitudinal » est défini par rapport à la direction dans laquelle s'étend un véhicule ferroviaire dans un plan horizontal et le terme « transversal » est défini selon une direction sensiblement perpendiculaire à la direction longitudinale dans un plan horizontal.In the description, the terms "vertical" and "horizontal" are defined with respect to a bogie mounted in a railway vehicle. Thus, a horizontal plane is substantially parallel to the plane in which the axles extend and the vertical plane is substantially parallel to the plane in which the wheels extend. The term "longitudinal" is defined with respect to the direction in which a railway vehicle extends in a horizontal plane and the term "transverse" is defined in a direction substantially perpendicular to the longitudinal direction in a horizontal plane.

En référence à la Fig. 1, on décrit un bogie 1 de véhicule ferroviaire (non représenté), par exemple un métro.With reference to the Fig. 1 a bogie 1 of a railway vehicle (not shown), for example a subway, is described.

Le bogie 1 comprend deux paires de roues 2, les roues 2 de chaque paire étant reliées l'une à l'autre par arbre pour former un essieu 4. Les essieux 4 sont reliés l'un à l'autre par un châssis 6, dit intérieur, comprenant deux demi-châssis 8 solidaires chacun d'un essieu 4. Par châssis intérieur, on entend que le châssis 6 s'étend sensiblement entre les roues 2 selon la direction transversale sans « déborder » de celles-ci.The bogie 1 comprises two pairs of wheels 2, the wheels 2 of each pair being connected to each other by shaft to form an axle 4. The axles 4 are connected to one another by a frame 6, said inner, comprising two half-frames 8 each secured to an axle 4. By inner frame means that the frame 6 extends substantially between the wheels 2 according to the cross direction without "overflowing" them.

Chaque demi-châssis 8 comprend deux longerons 10, s'étendant sensiblement longitudinalement, reliés l'un à l'autre par une traverse 12, s'étendant sensiblement transversalement. Chaque longeron 10 repose sur les boîtes d'essieu 14 d'un essieu 4, lesdites boîtes d'essieu 14 étant disposées sensiblement contre les roues 2 de l'essieu 4 entre lesdites roues 2. La traverse 12 s'étend à une hauteur inférieure à celle des longerons 10, comme représenté sur la Fig. 2, ce qui permet de dégager un espace plus important entre les deux essieux 4 du bogie 1.Each half-frame 8 comprises two longitudinal members 10, extending substantially longitudinally, connected to each other by a cross member 12, extending substantially transversely. Each spar 10 rests on the axle boxes 14 of an axle 4, said axle boxes 14 being disposed substantially against the wheels 2 of the axle 4 between said wheels 2. The cross member 12 extends to a lower height to that of the longitudinal members 10, as shown in Fig. 2 , which allows to clear a larger space between the two axles 4 of the truck 1.

Les traverses 12 des demi-châssis 8 sont articulées l'une à l'autre par un joint d'articulation 18, ou rotule, de sorte à permettre une rotation d'un demi-châssis 8 par rapport à l'autre autour d'un axe A sensiblement longitudinal, ladite rotation permettant de s'adapter aux gauches subies par le bogie. L'articulation peut être du type à rotule sphérique sèche ou du type articulation caoutchouc sphérique ou cylindrique. Cette rotule bloque les trois translations le long des axes sensiblement longitudinal A, transversal Y et vertical Z des deux demi-châssis l'un par rapport à l'autre.The crosspieces 12 of the half-frames 8 are articulated to one another by a hinge joint 18, or ball joint, so as to allow rotation of a half-frame 8 relative to the other around a substantially longitudinal axis A, said rotation to adapt to the left bogie suffered. The joint may be of the dry spherical ball type or of the spherical or cylindrical rubber joint type. This ball joint blocks the three translations along the substantially longitudinal axes A, transverse Y and vertical Z of the two half-frames relative to each other.

Les longerons 10 des demi-châssis 8 en regard sont reliés l'un à l'autre par deux bielles 20 de sorte à bloquer les rotations relatives des deux demi-châssis autour des axes sensiblement vertical Z et sensiblement transversal Y passant par le joint d'articulation 18. Les deux demi châssis sont alors maintenus l'un à l'autre de sorte que les essieux restent parallèles et que le bogie 1 ne se replie pas sur lui même sous l'effet de la charge verticale. En revanche les deux demi-châssis peuvent tourner l'un par rapport à l'autre autour de l'axe A sensiblement longitudinal pour accepter les gauches de voie.The longitudinal members 10 of the half-frame 8 facing each other are connected to one another by two connecting rods 20 so as to block the relative rotations of the two half-frames about the substantially vertical axes Z and substantially transverse Y passing through the joint. 18. The two half-chassis are then held together so that the axles remain parallel and the bogie 1 does not fold on itself under the effect of the vertical load. On the other hand, the two half-chassis can rotate relative to one another about the substantially longitudinal axis A to accept the left-hand lanes.

Pour ce faire, les points de liaison des deux bielles 20 aux longerons 10 sont positionnés dans un plan horizontal décalé par rapport au plan horizontal passant par le joint d'articulation 18. Selon le mode de réalisation représenté sur les figures, les points de liaison des deux bielles 20 sont positionnés dans un plan horizontal s'étendant au-dessus du plan horizontal passant par le joint d'articulation 18. Selon un autre mode de réalisation, les points de liaison des deux bielles s'étendant dans un plan s'étendant en dessous du plan horizontal passant par le joint d'articulation 18. Les bielles sont également écartées dans la direction transversale l'une de l'autre. La différence de hauteur H entre le plan horizontal des points de liaison des bielles 20 et le plan horizontal passant par le joint d'articulation 18 doit être suffisant pour limiter les efforts subis par ces bielles 20 et par le joint d'articulation 18 sous l'effet de la charge verticale. Cette distance H doit approximativement être au minimum égale à 1/6 de l'empattement du bogie. L'écartement L entre les deux bielles doit être suffisant pour limiter les efforts subis par ces bielles et par le joint d'articulation, sous l'effet des efforts d'inscription en courbe par exemple. L'écartement doit approximativement être égal à 1/3 de l'empattement du bogie pour un bogie circulant sur une voie d'écartement normal, c'est-à-dire présentant un écartement entre les rails de la voie sensiblement égal à 1435 mm.To do this, the connection points of the two connecting rods 20 to the longitudinal members 10 are positioned in a horizontal plane offset from the horizontal plane passing through the hinge joint 18. According to the embodiment shown in the figures, the connection points two rods 20 are positioned in a horizontal plane extending above the horizontal plane passing through the joint 18. According to another embodiment, the connection points of the two rods extending in a plane extending below the horizontal plane passing through the hinge joint 18. The rods are also spaced in the direction transverse to each other. The difference in height H between the horizontal plane of the connection points of the rods 20 and the horizontal plane passing through the hinge joint 18 must be sufficient to limit the forces experienced by these rods 20 and the hinge joint 18 under the effect of the vertical load. This distance H must be approximately equal to at least 1/6 of the truck's wheelbase. The spacing L between the two connecting rods must be sufficient to limit the forces experienced by these rods and the hinge joint, under the effect of curved registration efforts, for example. The spacing shall be approximately 1/3 of the bogie wheelbase for a bogie running on a normal gauge track, that is to say having a track gauge of approximately 1435 mm .

Les bielles 20 sont liées aux longerons 10, par des articulations 21, principalement autour d'axes sensiblement transversaux, afin de permettre la liberté principale recherchée des deux demi-châssis 8 l'un par rapport à l'autre pour franchir les gauches de voie. Les articulations 21 des bielles peuvent être du type à rotule sphérique sèche ou du type articulation caoutchouc sphérique ou cylindrique.The rods 20 are connected to the longitudinal members 10, by hinges 21, mainly around substantially transverse axes, in order to allow the desired main freedom of the two half-chassis 8 relative to each other to cross the left lanes . The joints 21 of the connecting rods can be of the dry spherical ball type or of the spherical or cylindrical rubber articulation type.

Dans un premier mode de réalisation de l'invention illustré par la figure 1, les bielles 20 présentent par exemple une forme d'étrier permettant le logement d'une suspension secondaire 22 dans chacune desdites bielles 20. On parle alors de suspension secondaire « intégrée » dans chaque bielle 20, comme représenté dans la figure 1. Dans cet exemple, chaque bielle 20 est composée de deux éléments, un premier élément en forme d'étrier 23 relié par les articulations 21 aux longerons 10, et un deuxième élément 25 qui est disposé sur les deux parties supérieures de l'étrier 23 et qui relie lesdites parties entre elles. La fonction de ce deuxième élément 25 est d'éviter l'écartement de l'étrier sous l'effet des efforts longitudinaux engendrés par la suspension secondaire 22. Les suspensions secondaires 22 permettent un déplacement relatif vertical du bogie 1 par rapport au véhicule ferroviaire sur lequel ledit bogie 1 est monté. La suspension secondaire 22 peut être de type pneumatique ou de type suspension élastomère.In a first embodiment of the invention illustrated by the figure 1 , the rods 20 have for example a stirrup shape allowing the housing of a secondary suspension 22 in each of said rods 20. This is called "integrated" secondary suspension in each rod 20, as shown in FIG. figure 1 . In this example, each connecting rod 20 is composed of two elements, a first stirrup-shaped element 23 connected by the joints 21 to the longitudinal members 10, and a second element 25 which is arranged on the two upper parts of the stirrup 23 and which connects said parts together. The function of this second element 25 is to avoid the spacing of the stirrup under the effect of the longitudinal forces generated by the secondary suspension 22. The secondary suspensions 22 allow a relative vertical displacement of the bogie 1 relative to the railway vehicle on which said bogie 1 is mounted. The secondary suspension 22 may be of the pneumatic type or of the elastomer suspension type.

Dans un autre mode de réalisation de l'invention illustré par la figure 3, les bielles 20 sont réalisées sous la forme de barreaux 27 reliant les longerons 10 des demi-châssis 8 entre eux et reliés à ces longerons par les articulations 21. Les demi-châssis 8 comprennent des platines 29 disposées en saillie selon la direction transversale par rapport aux bielles 20, comme représenté sur la figure 3. C'est-à-dire que les platines 29 sont disposées au delà de l'espace séparant les bielles 20. Les platines 29 s'étendent par exemple sensiblement jusqu'au niveau des roues 2. Ces platines 29 reçoivent les suspensions secondaires 22. Bien que le bogie selon ce mode de réalisation soit plus encombrant que celui du premier mode de réalisation, il est plus simple et moins coûteux à réaliser.In another embodiment of the invention illustrated by the figure 3 , the connecting rods 20 are made in the form of bars 27 connecting the longitudinal members 10 of the half-frames 8 to each other and connected to these longitudinal members by the hinges 21. The half-frames 8 comprise plates 29 arranged projecting in the transverse direction by compared to rods 20, as shown in figure 3 . That is to say that the plates 29 are disposed beyond the space between the connecting rods 20. The plates 29 extend for example substantially to the level of the wheels 2. These plates 29 receive the secondary suspensions 22. Although the bogie according to this embodiment is more bulky than that of the first embodiment, it is simpler and less expensive to produce.

Le bogie décrit ci-dessus peut être moteur, c'est-à-dire qu'au moins un des essieux 4 est entraîné en rotation par un moteur 24. Selon le mode de réalisation représenté sur la Fig. 2, seul un essieu est entraîné par un moteur 24, tandis que selon le mode de réalisation représenté sur la Fig. 1 ou 3, les deux essieux 4 du bogie 1 sont entraînés chacun par un moteur 24.The bogie described above can be a motor, that is to say that at least one of the axles 4 is rotated by a motor 24. According to the embodiment shown in FIG. Fig. 2 , only one axle is driven by a motor 24, while according to the embodiment shown on the Fig. 1 or 3 the two axles 4 of the bogie 1 are each driven by a motor 24.

Le moteur 24 est par exemple fixe par rapport au châssis 6 du bogie 1, fixé par exemple à une traverse 12 d'un demi-châssis 8 par un étrier de fixation 26 et s'étend au voisinage de l'essieu 4 qu'il entraîne, sensiblement entre les deux roues 2.The motor 24 is for example fixed relative to the chassis 6 of the bogie 1, fixed for example to a crosspiece 12 of a half-frame 8 by a fixing bracket 26 and extends in the vicinity of the axle 4 that it drives substantially between the two wheels 2.

D'autres montages du moteur, à arbre creux ou à « Canon box » sont évidemment envisageables.Other mounting motor, hollow shaft or "Canon box" are obviously possible.

Dans le cas d'un moteur puissant et encombrant, les boites d'essieux 14 seront disposées à l'extérieur des roues et les demi-châssis seront écartés dans la direction transversale pour reposer sur ces boites d'essieux.In the case of a powerful and bulky engine, the axle boxes 14 will be disposed outside the wheels and the half-chassis will be spaced in the transverse direction to rest on these axle boxes.

Dans l'exemple de la figure 1, une suspension primaire 16 qui ne reprend que les débattements verticaux est interposée entre chaque longeron 10 et la boîte d'essieu 14 sur laquelle ledit longeron 10 repose. La suspension primaire 16 est ici réalisée par un ensemble constitué de deux articulations 30 de type caoutchouc cylindrique par exemple, disposées respectivement entre la traverse 12 et chaque boite d'essieu 14, qui matérialisent un axe de rotation transversal de l'essieu 4 par rapport au demi-châssis de bogie 8, et de deux plots caoutchouc 32 par exemple placés respectivement entre le longeron 10 du demi-châssis 8 et chaque boite d'essieu 14. Cette suspension primaire 16 permet un déplacement vertical relatif de l'essieu 4 par rapport au demi-châssis 8, c'est-à-dire que l'essieu 4 est suspendu par rapport au châssis selon une direction sensiblement verticale. La suspension primaire 16 est particulièrement peu encombrante.In the example of the figure 1 , a primary suspension 16 which only takes up the vertical deflections is interposed between each spar 10 and the axle box 14 on which said spar 10 rests. The primary suspension 16 is here produced by an assembly consisting of two articulations 30 of cylindrical rubber type for example, respectively arranged between the crosspiece 12 and each axle box 14, which materialize a transverse axis of rotation of the axle 4 relative to to the bogie half-frame 8, and two rubber pads 32 for example placed respectively between the spar 10 of the half-frame 8 and each axle box 14. This primary suspension 16 allows a displacement vertical relative of the axle 4 relative to the half-frame 8, that is to say that the axle 4 is suspended relative to the frame in a substantially vertical direction. The primary suspension 16 is particularly compact.

Le fait de prévoir un châssis comprenant de simples suspensions primaires ne reprenant que les déplacement verticaux et une articulation entre les deux demi-châssis 8 prenant les prises de gauche, permet de se passer d'une suspension complexe reprenant tous ces déplacements du bogie. On réalise ainsi une économie d'espace permettant de loger plus facilement un ensemble moto-réducteur entre les roues du bogie. La suspension primaire présente notamment l'avantage de permettre une diminution des masses suspendues, surtout dans le cas d'un bogie motorisé.The fact of providing a chassis comprising simple primary suspensions only taking up the vertical movements and an articulation between the two half-chassis 8 taking the left plugs, makes it possible to dispense with a complex suspension taking all these movements of the bogie. This saves space and makes it easier to house a geared motor unit between the wheels of the bogie. The primary suspension has the particular advantage of allowing a reduction of suspended masses, especially in the case of a motorized bogie.

Le bogie peut également être porteur, c'est-à-dire qu'aucun de ses essieux n'est entraîné en rotation. Dans ce cas, le châssis peut ne pas comporter de suspension primaire, le passage des gauches étant repris par le joint d'articulation 18.The bogie can also be a carrier, that is to say that none of its axles is rotated. In this case, the frame may not include a primary suspension, the passage of the left being taken up by the hinge 18.

On obtient ainsi un bogie 1 porteur ou moteur avec un châssis 8 articulé intérieur ou extérieur, avec ou sans suspension primaire, qui est peu encombrant et de faible masse.This produces a bogie 1 carrier or motor with an articulated frame 8 inside or outside, with or without primary suspension, which is compact and low mass.

Claims (10)

Bogie (1) de véhicule ferroviaire comprenant deux paires de roues (2), les roues (2) d'une paire étant reliées l'une à l'autre par un arbre pour former un essieu (4), lesdits essieux (4) étant reliés l'un à l'autre par un châssis (6) comprenant deux demi-châssis (8), chaque demi-châssis (8) comprenant deux longerons (10) reliés l'un à l'autre par une traverse (12), lesdits longerons (10) reposant sur un desdits essieux (4), les traverses (10) des demi-châssis (8) étant articulées l'une par rapport à l'autre par un moyen d'articulation (18) de sorte à permettre une rotation d'un demi-châssis (8) par rapport à l'autre autour d'un axe (A) sensiblement longitudinal, caractérisé en ce que chaque longeron (10) d'un demi-châssis (8) est relié à un longeron (10) de l'autre demi-châssis (8) par une bielle (20) montée de façon articulée autour d'axes sensiblement transversaux sur lesdits longerons (10), ladite bielle (20) s'étendant au moins en partie dans un plan horizontal décalé en hauteur par rapport au plan horizontal passant par le moyen d'articulation (18).Bogie (1) of a railway vehicle comprising two pairs of wheels (2), the wheels (2) of a pair being connected to each other by a shaft to form an axle (4), said axles (4) being connected to each other by a frame (6) comprising two half-frames (8), each half-frame (8) comprising two longitudinal members (10) connected to each other by a cross member (12) ), said longitudinal members (10) resting on one of said axles (4), the cross members (10) of the half-frames (8) being hinged relative to one another by a hinge means (18) so to allow a rotation of one half-frame (8) relative to the other about a substantially longitudinal axis (A), characterized in that each spar (10) of a half-frame (8) is connected to a spar (10) of the other half-frame (8) by a connecting rod (20) hingedly mounted about substantially transverse axes on said spars (10), said connecting rod (20) extending at least part in a plan ho riceontal offset in height relative to the horizontal plane passing through the hinge means (18). Bogie selon la revendication 1, caractérisé en ce qu'un moteur (24) est fixé à la traverse (12) d'un demi-châssis (8), ledit moteur (24) s'étendant entre les roues (2) de l'essieu (4) sur lequel repose ledit demi-châssis (8) et entraînant la rotation dudit essieu (4).Bogie according to claim 1, characterized in that a motor (24) is fixed to the cross member (12) of a half-frame (8), said motor (24) extending between the wheels (2) of the axle (4) on which said half-frame (8) and causing rotation of said axle (4). Bogie selon la revendication 1 ou 2, caractérisé en ce que les longerons (10) d'un demi-châssis (8) reposent sur un des essieux (4) par l'intermédiaire d'au moins une suspension primaire (16) permettant un déplacement relatif vertical de l'essieu (4) par rapport au demi-châssis (8) reposant sur ledit essieu (4).Bogie according to claim 1 or 2, characterized in that the longitudinal members (10) of a half-frame (8) rest on one of the axles (4) via at least one primary suspension (16) allowing a relative vertical displacement of the axle (4) relative to the half-frame (8) resting on said axle (4). Bogie selon l'une des revendications précédentes, caractérisé en ce que les longerons (10) de chaque demi-châssis (8) reposent sur des boîtes d'essieu (14) de chaque essieu (4), lesdites boîtes (14) étant disposées entre les roues (2) dudit essieu (4).Bogie according to one of the preceding claims, characterized in that the beams (10) of each half-frame (8) rest on axle boxes (14) of each axle (4), said boxes (14) being arranged between the wheels (2) of said axle (4). Bogie selon l'une des revendications 1 à 3, caractérisé en ce que les longerons (10) de chaque demi-châssis (8) reposent sur des boîtes d'essieu (14) de chaque essieu (4), lesdites boîtes (14) étant disposées à l'extérieur des roues (2) dudit essieu (4).Bogie according to one of claims 1 to 3, characterized in that the longitudinal members (10) of each half-frame (8) rest on axle boxes (14) of each axle (4), said boxes (14). being disposed outside the wheels (2) of said axle (4). Bogie selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les bielles (20) présentent une forme d'étrier et logent des suspensions secondaires (22), lesdites suspensions secondaires (22) permettant un déplacement relatif vertical du bogie (1) par rapport au véhicule ferroviaire sur lequel ledit bogie (1) est monté.Bogie according to any one of claims 1 to 5, characterized in that the rods (20) have a stirrup shape and house suspensions secondary (22), said secondary suspensions (22) allowing a vertical relative displacement of the bogie (1) relative to the rail vehicle on which said bogie (1) is mounted. Bogie selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les bielles (20) présentent une forme de barreau, les demi-châssis (8) comprenant des platines (29) disposées en saillie selon la direction transversale par rapport aux bielles (20), lesdites platines (29) supportant des suspensions secondaires (22), lesdites suspensions secondaires (22) permettant un déplacement relatif vertical du bogie (1) par rapport au véhicule ferroviaire sur lequel ledit bogie (1) est monté.Bogie according to any one of claims 1 to 5, characterized in that the rods (20) have a rod shape, the half-frames (8) comprising plates (29) arranged projecting in the direction transverse to the connecting rods (20), said plates (29) supporting secondary suspensions (22), said secondary suspensions (22) allowing a vertical relative displacement of the bogie (1) relative to the railway vehicle on which said bogie (1) is mounted. Bogie selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la différence de hauteur (H) entre le plan horizontal dans lequel s'étendent au moins en partie les bielles (20) et le plan horizontal passant par le joint d'articulation (18) est au minimum égale au 1/6 de l'empattement du bogie.Bogie according to any one of claims 1 to 7, characterized in that the difference in height (H) between the horizontal plane in which at least partly extend the rods (20) and the horizontal plane passing through the seal articulation (18) is at least equal to 1/6 of the wheelbase of the bogie. Bogie selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'écartement (L) selon la direction transversale entre les deux bielles (20) est approximativement égal au 1/3 de l'empattement du bogie.Bogie according to any one of claims 1 to 8, characterized in that the spacing (L) in the transverse direction between the two connecting rods (20) is approximately equal to 1/3 of the wheelbase of the bogie. Véhicule ferroviaire comprenant au moins un bogie selon l'une quelconque des revendications 1 à 9.Railway vehicle comprising at least one bogie according to any one of claims 1 to 9.
EP10305582.8A 2009-06-05 2010-06-02 Railway Bogie Active EP2258597B1 (en)

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Cited By (14)

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Publication number Priority date Publication date Assignee Title
EP2557015A3 (en) * 2011-08-12 2013-08-14 Bombardier Transportation GmbH Running gear unit for a rail vehicle
US9718484B2 (en) 2011-08-12 2017-08-01 Bombardier Transportation Gmbh Running gear unit for a rail vehicle
WO2013130607A1 (en) * 2012-02-29 2013-09-06 Electro-Motive Diesel, Inc. Frame for railway truck
US8844447B2 (en) 2012-02-29 2014-09-30 Electro-Motive Diesel, Inc. Frame for railway truck
CN104136300A (en) * 2012-02-29 2014-11-05 易安迪机车公司 Frames for railway bogies
WO2013178716A1 (en) * 2012-05-30 2013-12-05 Bombardier Transportation Gmbh Running gear unit for a rail vehicle
FR3031490A1 (en) * 2015-01-09 2016-07-15 Alstom Transp Tech BOGIE COMPRISING A CENTRALIZED PRIMARY SUSPENSION
EP3042821A1 (en) * 2015-01-09 2016-07-13 ALSTOM Transport Technologies Bogie with centralized primary suspension
FR3076792A1 (en) * 2018-01-15 2019-07-19 Alstom Transport Technologies BOGIE FOR RAILWAY VEHICLE
FR3076793A1 (en) * 2018-01-15 2019-07-19 Alstom Transport Technologies BOGIE AND RAILWAY VEHICLE
EP3521129A1 (en) * 2018-01-15 2019-08-07 ALSTOM Transport Technologies Bogie and associated railway vehicle
EP3521125A1 (en) * 2018-01-15 2019-08-07 ALSTOM Transport Technologies Bogie for rail vehicle
FR3080822A1 (en) * 2018-05-07 2019-11-08 Alstom Transport Technologies FRAME FOR RAILWAY VEHICLE AND RAILWAY VEHICLE THEREFOR
EP3566926A1 (en) * 2018-05-07 2019-11-13 ALSTOM Transport Technologies Bogie for a rail vehicle and associated rail vehicle

Also Published As

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US8056482B2 (en) 2011-11-15
RU2521893C2 (en) 2014-07-10
BRPI1002671A2 (en) 2012-02-07
EP2258597B1 (en) 2013-10-16
FR2946308A1 (en) 2010-12-10
US20100307371A1 (en) 2010-12-09
KR20100131394A (en) 2010-12-15
BRPI1002671A8 (en) 2016-06-21
CN101905699B (en) 2014-11-12
RU2010122943A (en) 2011-12-10
BRPI1002671B1 (en) 2020-04-07
PL2258597T3 (en) 2014-03-31
CN101905699A (en) 2010-12-08
KR101930889B1 (en) 2018-12-19
ES2436343T3 (en) 2013-12-30
FR2946308B1 (en) 2011-08-05

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