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EP2883774A1 - Motor bogie for a rail vehicle in which the motor is substantially coaxial with the wheel axle - Google Patents

Motor bogie for a rail vehicle in which the motor is substantially coaxial with the wheel axle Download PDF

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Publication number
EP2883774A1
EP2883774A1 EP14197408.9A EP14197408A EP2883774A1 EP 2883774 A1 EP2883774 A1 EP 2883774A1 EP 14197408 A EP14197408 A EP 14197408A EP 2883774 A1 EP2883774 A1 EP 2883774A1
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EP
European Patent Office
Prior art keywords
axle
motor
bogie
hollow shaft
axis
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
EP14197408.9A
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German (de)
French (fr)
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EP2883774B1 (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 Technologies SAS
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Alstom Transport Technologies SAS
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 Technologies SAS filed Critical Alstom Transport Technologies SAS
Priority to PL14197408T priority Critical patent/PL2883774T3/en
Publication of EP2883774A1 publication Critical patent/EP2883774A1/en
Application granted granted Critical
Publication of EP2883774B1 publication Critical patent/EP2883774B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/44—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with hollow transmission shaft concentric with wheel axis

Definitions

  • the present invention relates to a railway vehicle engine bogie, of the type comprising at least one pair of wheels, the wheels of the or each pair being connected to each other by a shaft to form an axle, the bogie further comprising a motor, substantially coaxial with the axle, for driving the axle in rotation about its axis.
  • the invention also relates to a railway vehicle comprising such a bogie.
  • each motorized bogie In a railway vehicle, each motorized bogie, or motor bogie, generally comprises two pairs of wheels, the wheels of a pair being connected to each other by a shaft to form an axle, a chassis connecting said axles one to the other, suspensions interposed each between a half-frame and an axle, said suspension allowing a relative vertical displacement of the axle relative to the corresponding half-frame, and means for driving in rotation of the one axles or each axle.
  • These drive means comprise at least one motor and a mechanical device ensuring the transmission of engine torque from the engine to the axle, as well as the transmission of the braking torque from the axle to the engine.
  • the drive means are differentiated by the distribution of their masses which are either “not suspended”, that is to say related to the axle, or “suspended”, that is to say related to the chassis of bogie above the suspensions.
  • These drive means differ in their ease of integration into the bogie in terms of size, whether in width (that is to say parallel to the axis of the axle) or in length (parallel in the direction of travel of the vehicle). They differ in complexity by the number of pieces they understand.
  • An object of the invention is to provide a motor bogie incorporating drive means of the axle which are both compact and powerful. Other objectives are to have simple drive means to implement, and to reduce the unsprung masses.
  • the subject of the invention is a motor bogie of the aforementioned type, in which the motor drives the axle in rotation by means of a gearbox.
  • the invention also relates to a railway vehicle comprising a bogie engine as defined 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.
  • Each of the motor bogies 10 represented on the Figure 1 and 2 comprises two pairs of wheels 20, the wheels 20 of each pair being connected to each other by a shaft to form an axle 22.
  • the axles 22 are connected to one another by a frame 24, said outside, comprising two half-frames each secured to a respective axle 22.
  • outer frame it is meant that longitudinal members 26 of each half-frame frame the wheels 20 in the transverse direction, that is to say that they extend outside the jig formed by the wheels 20.
  • Each half-frame comprises two longitudinal members 26, extending substantially longitudinally, connected to each other by a cross member (not shown), extending substantially transversely.
  • Each beam 26 rests on the axle boxes 28 of an axle 22, said axle boxes 28 being arranged substantially against the wheels 20 of the axle 22, on either side of said wheels 20.
  • a primary suspension 30 is interposed between each spar 26 and the axle box 28 on which said spar 26 rests. This primary suspension 30 allows a relative vertical displacement of the axle 22 relative to the half-frame, that is to say that the half-frame is movable and suspended relative to the axle 22 in a substantially vertical direction.
  • the two half-frames are held together so that the axles 22 remain parallel and the bogie 10 does not fold on itself under the effect of a vertical load.
  • At least one of the axles 22, or both axles 22, are rotated by drive means 32 comprising a motor 34, a gearbox 36, and a mechanical device 38 for transmitting the driving torque. from the motor 34 to the axle 22, as well as the transmission of the braking torque from the axle 22 to the motor 34.
  • the motor 34 is suspended, that is to say it is rigidly connected to the frame 24. It is also substantially coaxial with the axle 22, the clearances allowed by the suspension 30 near. Said clearances authorized by the suspension 30 are in particular less than 30 mm in absolute value. Preferably, at rest, the motor 34 is coaxial with the axle 22.
  • the motor 34 is interposed between the wheels 20 of the axle 22.
  • the motor 34 is mounted around the axle 22. In other words, it defines a tubular cavity 40 through which the axle 22 passes.
  • the motor 34 comprises a rotor 42 and a stator 44.
  • the stator 44 is rigidly connected to the frame 24 by a connecting member 46. In a rigid assembly, this connecting member 46 prevents any displacement of the stator 44 relative to the frame 24.
  • the rotor 42 is coaxial with the stator 44.
  • Bearings 48 connect the rotor 42 to the stator 44, while allowing the rotor 42 to rotate about its axis relative to the stator 44.
  • the rotor 42 defines the tubular cavity 40, and the stator 44 is mounted around the rotor 42.
  • the motor 34 thus forms an internal rotor motor.
  • the gearbox 36 is substantially coaxial with the axle 22.
  • the gearbox 36 is an epicyclic gearbox. It comprises in known manner a plurality of meshing elements 50, 52, 54, 56, including an inner sun gear 50 forming an input gear of the gearbox 36, mounted around the axle 22, an outer sun gear 52, also called crown, coaxial with the inner sun gear 50, a plurality of satellites 54 interposed between the inner sun gear 50 and the ring gear 52, each geared to the inner sun gear 50 and the ring gear 52, and a planet carrier 56, coaxial with the inner sun gear 50 and to the ring 52, on which each satellite 54 is rotatably mounted about its axis.
  • meshing elements 50, 52, 54, 56 including an inner sun gear 50 forming an input gear of the gearbox 36, mounted around the axle 22, an outer sun gear 52, also called crown, coaxial with the inner sun gear 50, a plurality of satellites 54 interposed between the inner sun gear 50 and the ring gear 52, each geared to the inner sun gear 50 and the ring gear 52, and a planet carrier 56, coaxial with
  • the mechanical device 38 comprises a hollow shaft 60, a member 62, also called a driving plate, for coupling a member suspended from the transmission means 32 to the hollow shaft 60, and a member 64, also called a driven plate, coupling the hollow shaft 60 to an unsprung element.
  • the hollow shaft 60 is interposed between the axle 22 and the motor 34, in particular between the axle 22 and the rotor 42. It passes through the tubular cavity 40. It defines a cylindrical cavity 66 through which the axle 22 passes. is substantially coaxial with the axle 22, that is to say that the axis of the hollow shaft 60 intersects the axis of the axle 22, the angle between the two axes being always less than 3 ° in absolute value.
  • the coupling members 62, 64 are arranged at the axial ends of the hollow shaft 60. They thus frame the hollow shaft 60 transversely.
  • Each coupling member, respectively 62, 64, is adapted to allow inclination of the axis of the hollow shaft 60 relative to the axis of the suspended element, respectively relative to the axis of the unsprung element .
  • each coupling member respectively 62, 64, comprises a rigid annular plate 70, substantially coaxial with the axle 22, a first pair of rigid rollers 72 integral with the hollow shaft 60, and a second pair of rigid rollers 74 integral with the suspended element, respectively of the unsprung element.
  • the plate 70 defines for each roller 72, 74 a respective cylindrical cavity 76 for receiving said roller 72, 74.
  • Each roller 72, 74 has a curved cylindrical surface and has a maximum diameter less than that of its respective receiving cavity 76.
  • Each coupling member 62, 64 further comprises a respective sleeve 78 for each roller 72, 74, said sleeve 78 enveloping the roller 72, 74 by filling the clearance between the roller 72, 74 and its respective receiving cavity 76, said sleeve 78 being of elastic material, for example rubber.
  • the plate 70 and the rollers 72, 74 are typically made of steel.
  • the gearbox 36 is unsprung and constitutes the unsprung element coupled to the hollow shaft 60 via the coupling member 64, the suspended element coupled to the hollow shaft 60 via the coupling member 62 being constituted by the motor 34.
  • the planet carrier 56 is then secured to the axle 22, in particular to one of the wheels 20 of the axle 22, and the ring 52 is connected to the chassis 24 by a reaction rod 80 articulated to the ring 52 and the frame 24, so that said connecting rod 80 is adapted to resume torque by allowing movements due to movements between the frame 24 and the axle 22.
  • the rotor 42 drives, via the coupling member 62, the hollow shaft 60 rotated about its axis. This rotation is transmitted, via the coupling member 64, to the inner sun gear 50 of the gearbox 36.
  • the inner sun gear 50 in turn drives the satellites 54 which roll on the ring 52. In doing so, the satellites 54 cause the planet carrier 56 to rotate about its axis and, as a result, the rotation of the axle 22.
  • the axis of the motor 34 remains fixed relative to the frame 24, while the axis of the gearbox 36 follows the displacement of the axle 22. It follows a relative displacement of the axes of the motor 34 and the gearbox 36, which, if they remain parallel to one another, are then no longer aligned.
  • the hollow shaft 60 inclines relative to the direction of the axes of the motor 34 and the gearbox 36, this inclination being permitted thanks to the particular shape of the rollers 72, 74 and the use of the sleeves of elastic material 78 to fill the gaps between the rollers 72, 74 and their respective receiving cavities 76.
  • This embodiment has the advantage of having a torque transmitted at the coupling members 62, 64 which remains relatively low, so that it is possible to use lightweight and compact coupling members.
  • This embodiment however has the disadvantage of having higher unsprung masses, and requiring the installation of a bearing resistant to high speeds of rotation at the interface between the inner sun gear 50 and the axle 22.
  • the gearbox 36 is suspended and constitutes the suspended element coupled to the hollow shaft 60 via the coupling member 62, the unsprung element coupled to the hollow shaft 60 via the coupling member 64 being constituted by the axle 22, in particular by a wheel 20 of the axle 22.
  • the rotor 42 of the motor 34 is then secured to the inner sun gear 50, which thus forms an output gear of the motor 34 meshing directly on the gearbox 36, and the stator 44 is integral with the ring 52.
  • the rotor 42 directly drives the inner sun gear 50 of the gearbox 36.
  • the inner sun gear 50 in turn drives the satellites 54 which roll on the ring 52.
  • the satellites 54 cause the planet carrier 56 to rotate around the planet. its axis.
  • the rotation of the planet carrier 56 is transmitted to the hollow shaft 60 via the coupling member 62.
  • the rotation of the hollow shaft 60 about its axis finally causes the rotation of the axle 22 by via the coupling member 64.
  • the axes of the motor 34 and the gearbox 36 remain fixed relative to the frame 24. Although remain parallel to the axis of the axle 22, the axes of the motor 34 and the gear 36 are no longer aligned with the axis of the axle 22.
  • the hollow shaft 60 inclines relatively to the direction of the axes of the gearbox 36 and the axle 22, this inclination being allowed thanks to the particular shape of the rollers 72, 74 and the use of the sleeves of elastic material 78 to fill the clearances between the rollers 72, 74 and their respective receiving cavities 76.
  • This embodiment has the advantage of having few unsprung masses.
  • the fact of linking the motor 34 to the gearbox 36 makes it possible to gain compactness of the assembly.
  • the torque transmitted by the coupling members 62, 64 is greater, which requires the use of heavier and bulky coupling members.
  • the drive of the axle is performed by means of a device combining power and compactness.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

Ce bogie moteur (10) de véhicule ferroviaire comprend au moins une paire de roues (20), les roues (20) de la ou chaque paire étant reliées l'une à l'autre par un arbre pour former un essieu (22). Le bogie (10) comprend en outre un moteur (34), sensiblement coaxial à l'essieu (22), pour entraîner l'essieu (22) en rotation autour de son axe, le moteur (34) entraînant l'essieu (22) en rotation par l'intermédiaire d'un réducteur (36).The rail vehicle engine bogie (10) comprises at least one pair of wheels (20), the wheels (20) of the or each pair being connected to each other by a shaft to form an axle (22). The bogie (10) further comprises a motor (34), substantially coaxial with the axle (22), for driving the axle (22) in rotation about its axis, the motor (34) driving the axle (22). ) in rotation through a gearbox (36).

Description

La présente invention concerne un bogie moteur de véhicule ferroviaire, du type comprenant au moins une paire de roues, les roues de la ou chaque paire étant reliées l'une à l'autre par un arbre pour former un essieu, le bogie comprenant en outre un moteur, sensiblement coaxial à l'essieu, pour entraîner l'essieu en rotation autour de son axe.The present invention relates to a railway vehicle engine bogie, of the type comprising at least one pair of wheels, the wheels of the or each pair being connected to each other by a shaft to form an axle, the bogie further comprising a motor, substantially coaxial with the axle, for driving the axle in rotation about its axis.

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

Dans un véhicule ferroviaire, chaque bogie motorisé, ou bogie moteur, comprend généralement deux paires de roues, les roues d'une paire étant reliées l'une à l'autre par un arbre pour former un essieu, un châssis reliant lesdits essieux l'un à l'autre, des suspensions interposées chacune entre un demi-châssis et un essieu, ladite suspension permettant un déplacement vertical relatif de l'essieu par rapport au demi-châssis correspondant, et des moyens d'entraînement en rotation de l'un des essieux ou de chaque essieu. Ces moyens d'entraînement comprennent au moins un moteur et un dispositif mécanique assurant la transmission du couple moteur du moteur à l'essieu, ainsi que la transmission du couple de freinage de l'essieu au moteur. Les moyens d'entraînement se différencient par la répartition de leurs masses qui sont soit « non suspendues », c'est-à-dire liées à l'essieu, soit « suspendues », c'est-à-dire liées au châssis de bogie au dessus des suspensions. Ces moyens d'entraînement se différencient par leur facilité d'intégration dans le bogie en terme d'encombrement, que ce soit en largeur (c'est-à-dire parallèlement à l'axe de l'essieu) ou en longueur (parallèlement au sens de marche du véhicule). Ils se différencient en complexité par le nombre de pièces qu'ils comprennent.In a railway vehicle, each motorized bogie, or motor bogie, generally comprises two pairs of wheels, the wheels of a pair being connected to each other by a shaft to form an axle, a chassis connecting said axles one to the other, suspensions interposed each between a half-frame and an axle, said suspension allowing a relative vertical displacement of the axle relative to the corresponding half-frame, and means for driving in rotation of the one axles or each axle. These drive means comprise at least one motor and a mechanical device ensuring the transmission of engine torque from the engine to the axle, as well as the transmission of the braking torque from the axle to the engine. The drive means are differentiated by the distribution of their masses which are either "not suspended", that is to say related to the axle, or "suspended", that is to say related to the chassis of bogie above the suspensions. These drive means differ in their ease of integration into the bogie in terms of size, whether in width (that is to say parallel to the axis of the axle) or in length (parallel in the direction of travel of the vehicle). They differ in complexity by the number of pieces they understand.

Pour réduire les efforts verticaux dans la voie, il est avantageux de diminuer les masses non suspendues. Pour faciliter l'intégration des moyens d'entraînement, il est avantageux de diminuer les encombrements.To reduce the vertical forces in the track, it is advantageous to reduce the unsprung masses. To facilitate the integration of the drive means, it is advantageous to reduce congestion.

On connaît de EP 1 320 478 un bogie de véhicule ferroviaire dans lequel le rotor du moteur est solidaire de l'essieu et le stator est monté sur l'essieu par l'intermédiaire de paliers, de sorte que le moteur est non suspendu. Une bielle de réaction articulée au stator et au châssis de bogie permet de reprendre les couples et d'assurer les débattements dus aux mouvements entre le châssis de bogie et l'essieu. Les moyens d'entraînement sont ainsi particulièrement compacts. Ils présentent cependant l'inconvénient d'avoir des masses non suspendues élevées, ce qui limite la vitesse du véhicule. En outre, à voie et diamètre de roue constants, il est très difficile d'augmenter le couple moteur exercé sur l'essieu.We know EP 1,320,478 a railway vehicle bogie in which the rotor of the motor is secured to the axle and the stator is mounted on the axle via bearings, so that the motor is unsuspended. A reaction link articulated to the stator and to the bogie frame makes it possible to recover the torques and to ensure the movements due to the movements between the bogie frame and the axle. The drive means are thus particularly compact. However, they have the disadvantage of having unsprung masses high, which limits the speed of the vehicle. In addition, constant track and wheel diameter, it is very difficult to increase the engine torque exerted on the axle.

On connaît de WO 2006/051046 un bogie de véhicule ferroviaire dans lequel le rotor forme un arbre creux sensiblement coaxial à l'essieu, le moteur étant suspendu. Pour compenser les débattements dus aux mouvements entre le châssis de bogie et l'essieu, des organes d'accouplement tolérant un léger désaxement du rotor relativement à l'axe de l'essieu, disposés aux extrémités axiales du rotor, assurent la transmission de couple entre le rotor et l'essieu. Les masses non suspendues sont ainsi réduites. Toutefois, cette transmission augmente l'encombrement du bogie dans le sens de marche du véhicule. En outre, le moteur dispose de moins d'espace entre les roues, de sorte que la longueur de fer, et donc le couple exercé sur l'essieu, sont plus faibles que dans la solution décrite dans EP 1 320 478 .We know WO 2006/051046 a railway vehicle bogie in which the rotor forms a hollow shaft substantially coaxial with the axle, the motor being suspended. To compensate for the movements due to the movements between the bogie frame and the axle, coupling members that tolerate slight misalignment of the rotor relative to the axis of the axle, arranged at the axial ends of the rotor, ensure the transmission of torque. between the rotor and the axle. The unsprung masses are thus reduced. However, this transmission increases the size of the bogie in the direction of travel of the vehicle. In addition, the engine has less space between the wheels, so that the length of iron, and therefore the torque exerted on the axle, are lower than in the solution described in EP 1,320,478 .

Un objectif de l'invention est de proposer un bogie moteur intégrant des moyens d'entraînement de l'essieu qui soient à la fois compacts et puissants. D'autres objectifs sont d'avoir des moyens d'entraînement simples à mettre en oeuvre, et de réduire les masses non suspendues.An object of the invention is to provide a motor bogie incorporating drive means of the axle which are both compact and powerful. Other objectives are to have simple drive means to implement, and to reduce the unsprung masses.

A cet effet, l'invention a pour objet un bogie moteur du type précité, dans lequel le moteur entraîne l'essieu en rotation par l'intermédiaire d'un réducteur.For this purpose, the subject of the invention is a motor bogie of the aforementioned type, in which the motor drives the axle in rotation by means of a gearbox.

Selon des modes de réalisation particuliers de l'invention, le bogie moteur présente également l'une ou plusieurs des caractéristiques ci-dessous, prise(s) isolément ou suivant toute(s) combinaison(s) techniquement possible(s) :

  • le moteur est interposé entre les deux roues de la paire ;
  • le réducteur est un réducteur à train épicycloïdal ;
  • le bogie comprend un châssis et une suspension entre le châssis et l'essieu, ladite suspension étant agencée pour permettre un déplacement vertical relatif de l'essieu par rapport au châssis, le moteur étant fixé rigidement au châssis ;
  • le réducteur comprend un élément d'engrenage solidaire de l'essieu ;
  • le moteur comprend un pignon de sortie engrenant directement sur le réducteur ;
  • le moteur comprend un rotor monté autour de l'essieu ;
  • le bogie moteur comprend un arbre creux pour la transmission de l'entraînement du moteur à l'essieu, l'arbre creux étant interposé entre l'essieu et le rotor ;
  • le bogie moteur comprend un premier organe d'accouplement pour l'accouplement du rotor à l'arbre creux, ledit premier organe d'accouplement étant adapté pour permettre une inclinaison de l'axe du rotor relativement à l'axe de l'arbre creux ;
  • le bogie moteur comprend un premier organe d'accouplement pour l'accouplement de l'arbre creux à l'essieu, ledit premier organe d'accouplement étant adapté pour permettre une inclinaison de l'axe de l'arbre creux relativement à l'axe de l'essieu ;
  • le bogie moteur comprend un deuxième organe d'accouplement pour l'accouplement de l'arbre creux à un pignon d'entrée du réducteur, ledit deuxième organe d'accouplement étant adapté pour permettre une inclinaison de l'axe du pignon d'entrée relativement à l'axe de l'arbre creux ;
  • le moteur est un moteur à rotor interne.
According to particular embodiments of the invention, the motor bogie also has one or more of the following characteristics, taken separately or in any combination (s) technically possible (s):
  • the motor is interposed between the two wheels of the pair;
  • the reducer is an epicyclic gear reducer;
  • the bogie comprises a chassis and a suspension between the chassis and the axle, said suspension being arranged to allow a relative vertical displacement of the axle relative to the chassis, the engine being rigidly fixed to the chassis;
  • the reducer comprises a gear element integral with the axle;
  • the motor comprises an output gear meshing directly on the gearbox;
  • the engine comprises a rotor mounted around the axle;
  • the engine bogie comprises a hollow shaft for transmitting the drive from the motor to the axle, the hollow shaft being interposed between the axle and the rotor;
  • the motor bogie comprises a first coupling member for coupling the rotor to the hollow shaft, said first coupling member being adapted to allow an inclination of the rotor axis relative to the axis of the hollow shaft ;
  • the motor bogie comprises a first coupling member for coupling the hollow shaft to the axle, said first coupling member being adapted to allow an inclination of the axis of the hollow shaft relative to the axis axle;
  • the engine bogie comprises a second coupling member for coupling the hollow shaft to an input pinion of the gearbox, said second coupling member being adapted to allow inclination of the pinion axis of the input gear relatively to the axis of the hollow shaft;
  • the engine is an internal rotor motor.

L'invention a également pour objet un véhicule ferroviaire comprenant un bogie moteur tel que défini ci-dessus.The invention also relates to a railway vehicle comprising a bogie engine as defined above.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, dans lesquels :

  • la Figure 1 est une vue en coupe transversale d'un bogie moteur selon un premier mode de réalisation de l'invention, et
  • la Figure 2 est une vue en coupe transversale d'un bogie moteur selon un deuxième mode de réalisation de l'invention
Other features and advantages of the invention will appear on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which:
  • the Figure 1 is a cross-sectional view of a motor bogie according to a first embodiment of the invention, and
  • the Figure 2 is a cross-sectional view of a motor bogie according to a second embodiment of the invention

Dans la suite, 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 following, 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.

Chacun des bogies moteur 10 représentés sur les Figure 1 et 2, comprend deux paires de roues 20, les roues 20 de chaque paire étant reliées l'une à l'autre par un arbre pour former un essieu 22. Les essieux 22 sont reliés l'un à l'autre par un châssis 24, dit extérieur, comprenant deux demi-châssis solidaires chacun d'un essieu 22 respectif. Par châssis extérieur, on entend que des longerons 26 de chaque demi-châssis encadrent les roues 20 selon la direction transversale, c'est-à-dire qu'ils s'étendent à l'extérieur du gabarit formé par les roues 20.Each of the motor bogies 10 represented on the Figure 1 and 2 , comprises two pairs of wheels 20, the wheels 20 of each pair being connected to each other by a shaft to form an axle 22. The axles 22 are connected to one another by a frame 24, said outside, comprising two half-frames each secured to a respective axle 22. By outer frame, it is meant that longitudinal members 26 of each half-frame frame the wheels 20 in the transverse direction, that is to say that they extend outside the jig formed by the wheels 20.

Chaque demi-châssis comprend deux longerons 26, s'étendant sensiblement longitudinalement, reliés l'un à l'autre par une traverse (non représentée), s'étendant sensiblement transversalement. Chaque longeron 26 repose sur les boîtes d'essieu 28 d'un essieu 22, lesdites boîtes d'essieu 28 étant disposées sensiblement contre les roues 20 de l'essieu 22, de part et d'autre desdites roues 20.Each half-frame comprises two longitudinal members 26, extending substantially longitudinally, connected to each other by a cross member (not shown), extending substantially transversely. Each beam 26 rests on the axle boxes 28 of an axle 22, said axle boxes 28 being arranged substantially against the wheels 20 of the axle 22, on either side of said wheels 20.

Une suspension primaire 30 est interposée entre chaque longeron 26 et la boîte d'essieu 28 sur laquelle ledit longeron 26 repose. Cette suspension primaire 30 permet un déplacement vertical relatif de l'essieu 22 par rapport au demi-châssis, c'est-à-dire que le demi-châssis est mobile et suspendu par rapport à l'essieu 22 selon une direction sensiblement verticale.A primary suspension 30 is interposed between each spar 26 and the axle box 28 on which said spar 26 rests. This primary suspension 30 allows a relative vertical displacement of the axle 22 relative to the half-frame, that is to say that the half-frame is movable and suspended relative to the axle 22 in a substantially vertical direction.

Les deux demi-châssis sont maintenus l'un à l'autre de sorte que les essieux 22 restent parallèles et que le bogie 10 ne se replie pas sur lui même sous l'effet d'une charge verticale.The two half-frames are held together so that the axles 22 remain parallel and the bogie 10 does not fold on itself under the effect of a vertical load.

Au moins un des essieux 22, ou les deux essieux 22, est (sont) entraîné(s) en rotation par des moyens d'entraînement 32 comprenant un moteur 34, un réducteur 36, et un dispositif mécanique 38 assurant la transmission du couple moteur du moteur 34 à l'essieu 22, ainsi que la transmission du couple de freinage de l'essieu 22 au moteur 34.At least one of the axles 22, or both axles 22, are rotated by drive means 32 comprising a motor 34, a gearbox 36, and a mechanical device 38 for transmitting the driving torque. from the motor 34 to the axle 22, as well as the transmission of the braking torque from the axle 22 to the motor 34.

Le moteur 34 est suspendu, c'est-à-dire qu'il est lié rigidement au châssis 24. Il est par ailleurs sensiblement coaxial à l'essieu 22, aux débattements autorisés par la suspension 30 près. Lesdits débattements autorisés par la suspension 30 sont en particulier inférieurs à 30 mm en valeur absolue. De préférence, au repos, le moteur 34 est coaxial à l'essieu 22.The motor 34 is suspended, that is to say it is rigidly connected to the frame 24. It is also substantially coaxial with the axle 22, the clearances allowed by the suspension 30 near. Said clearances authorized by the suspension 30 are in particular less than 30 mm in absolute value. Preferably, at rest, the motor 34 is coaxial with the axle 22.

Le moteur 34 est interposé entre les roues 20 de l'essieu 22.The motor 34 is interposed between the wheels 20 of the axle 22.

Le moteur 34 est monté autour de l'essieu 22. En d'autres termes, il définit une cavité tubulaire 40 traversée par l'essieu 22.The motor 34 is mounted around the axle 22. In other words, it defines a tubular cavity 40 through which the axle 22 passes.

Le moteur 34 comprend un rotor 42 et un stator 44.The motor 34 comprises a rotor 42 and a stator 44.

Le stator 44 est lié rigidement au châssis 24 par un organe de liaison 46. Dans un montage rigide, cet organe de liaison 46 interdit tout déplacement du stator 44 relativement au châssis 24.The stator 44 is rigidly connected to the frame 24 by a connecting member 46. In a rigid assembly, this connecting member 46 prevents any displacement of the stator 44 relative to the frame 24.

Le rotor 42 est coaxial au stator 44. Des paliers 48 assurent la liaison du rotor 42 au stator 44, tout en permettant la rotation du rotor 42 autour de son axe relativement au stator 44.The rotor 42 is coaxial with the stator 44. Bearings 48 connect the rotor 42 to the stator 44, while allowing the rotor 42 to rotate about its axis relative to the stator 44.

Le rotor 42 définit la cavité tubulaire 40, et le stator 44 est monté autour du rotor 42. Le moteur 34 forme ainsi un moteur à rotor interne.The rotor 42 defines the tubular cavity 40, and the stator 44 is mounted around the rotor 42. The motor 34 thus forms an internal rotor motor.

Le réducteur 36 est sensiblement coaxial à l'essieu 22.The gearbox 36 is substantially coaxial with the axle 22.

Le réducteur 36 est un réducteur à train épicycloïdal. Il comprend de façon connue une pluralité d'éléments d'engrènement 50, 52, 54, 56, dont un planétaire intérieur 50 formant un pignon d'entrée du réducteur 36, monté autour de l'essieu 22, un planétaire extérieur 52, également appelé couronne, coaxial au planétaire intérieur 50, une pluralité de satellites 54 interposés entre le planétaire intérieur 50 et la couronne 52, chacun étant engrené sur le planétaire intérieur 50 et la couronne 52, et un porte-satellites 56, coaxial au planétaire intérieur 50 et à la couronne 52, sur lequel chaque satellite 54 est monté rotatif autour de son axe.The gearbox 36 is an epicyclic gearbox. It comprises in known manner a plurality of meshing elements 50, 52, 54, 56, including an inner sun gear 50 forming an input gear of the gearbox 36, mounted around the axle 22, an outer sun gear 52, also called crown, coaxial with the inner sun gear 50, a plurality of satellites 54 interposed between the inner sun gear 50 and the ring gear 52, each geared to the inner sun gear 50 and the ring gear 52, and a planet carrier 56, coaxial with the inner sun gear 50 and to the ring 52, on which each satellite 54 is rotatably mounted about its axis.

Le dispositif mécanique 38 comprend un arbre creux 60, un organe 62, également appelé plateau menant, d'accouplement d'un élément suspendu des moyens de transmission 32 à l'arbre creux 60, et un organe 64, également appelé plateau mené, d'accouplement de l'arbre creux 60 à un élément non suspendu.The mechanical device 38 comprises a hollow shaft 60, a member 62, also called a driving plate, for coupling a member suspended from the transmission means 32 to the hollow shaft 60, and a member 64, also called a driven plate, coupling the hollow shaft 60 to an unsprung element.

L'arbre creux 60 est interposé entre l'essieu 22 et le moteur 34, en particulier entre l'essieu 22 et le rotor 42. Il traverse la cavité tubulaire 40. Il définit une cavité cylindrique 66 traversée par l'essieu 22. Il est sensiblement coaxial à l'essieu 22, c'est-à-dire que l'axe de l'arbre creux 60 intersecte l'axe de l'essieu 22, l'angle entre les deux axes étant toujours inférieur à 3° en valeur absolue.The hollow shaft 60 is interposed between the axle 22 and the motor 34, in particular between the axle 22 and the rotor 42. It passes through the tubular cavity 40. It defines a cylindrical cavity 66 through which the axle 22 passes. is substantially coaxial with the axle 22, that is to say that the axis of the hollow shaft 60 intersects the axis of the axle 22, the angle between the two axes being always less than 3 ° in absolute value.

Les organes d'accouplement 62, 64 sont disposés aux extrémités axiales de l'arbre creux 60. Ils encadrent ainsi l'arbre creux 60 transversalement.The coupling members 62, 64 are arranged at the axial ends of the hollow shaft 60. They thus frame the hollow shaft 60 transversely.

Chaque organe d'accouplement, respectivement 62, 64, est adapté pour permettre une inclinaison de l'axe de l'arbre creux 60 relativement à l'axe de l'élément suspendu, respectivement relativement à l'axe de l'élément non suspendu.Each coupling member, respectively 62, 64, is adapted to allow inclination of the axis of the hollow shaft 60 relative to the axis of the suspended element, respectively relative to the axis of the unsprung element .

A cet effet, chaque organe d'accouplement, respectivement 62, 64, comprend un plateau annulaire 70 rigide, sensiblement coaxial à l'essieu 22, une première paire de galets 72 rigides solidaires de l'arbre creux 60, et une deuxième paire de galets 74 rigides solidaires de l'élément suspendu, respectivement de l'élément non suspendu. Le plateau 70 définit pour chaque galet 72, 74 une cavité cylindrique 76 respective de réception dudit galet 72, 74. Chaque galet 72, 74 présente une surface cylindrique bombée et a un diamètre maximal inférieur à celui de sa cavité de réception 76 respective. Chaque organe d'accouplement 62, 64 comprend en outre un manchon 78 respectif pour chaque galet 72, 74, ledit manchon 78 enveloppant le galet 72, 74 en comblant le jeu entre le galet 72, 74 et sa cavité de réception respective 76, ledit manchon 78 étant en matériau élastique, par exemple en caoutchouc. Le plateau 70 et les galets 72, 74 sont typiquement en acier.For this purpose, each coupling member, respectively 62, 64, comprises a rigid annular plate 70, substantially coaxial with the axle 22, a first pair of rigid rollers 72 integral with the hollow shaft 60, and a second pair of rigid rollers 74 integral with the suspended element, respectively of the unsprung element. The plate 70 defines for each roller 72, 74 a respective cylindrical cavity 76 for receiving said roller 72, 74. Each roller 72, 74 has a curved cylindrical surface and has a maximum diameter less than that of its respective receiving cavity 76. Each coupling member 62, 64 further comprises a respective sleeve 78 for each roller 72, 74, said sleeve 78 enveloping the roller 72, 74 by filling the clearance between the roller 72, 74 and its respective receiving cavity 76, said sleeve 78 being of elastic material, for example rubber. The plate 70 and the rollers 72, 74 are typically made of steel.

Dans le premier mode de réalisation de la Figure 1, le réducteur 36 est non suspendu et constitue l'élément non suspendu accouplé à l'arbre creux 60 par l'intermédiaire de l'organe d'accouplement 64, l'élément suspendu accouplé à l'arbre creux 60 par l'intermédiaire de l'organe d'accouplement 62 étant constitué par le moteur 34. Le porte-satellites 56 est alors solidaire de l'essieu 22, en particulier de l'une des roues 20 de l'essieu 22, et la couronne 52 est liée au châssis 24 par une bielle de réaction 80 articulée à la couronne 52 et au châssis 24, de sorte que ladite bielle 80 est adaptée pour reprendre les couples en autorisant les débattements dus aux mouvements entre le châssis 24 et l'essieu 22.In the first embodiment of the Figure 1 , the gearbox 36 is unsprung and constitutes the unsprung element coupled to the hollow shaft 60 via the coupling member 64, the suspended element coupled to the hollow shaft 60 via the coupling member 62 being constituted by the motor 34. The planet carrier 56 is then secured to the axle 22, in particular to one of the wheels 20 of the axle 22, and the ring 52 is connected to the chassis 24 by a reaction rod 80 articulated to the ring 52 and the frame 24, so that said connecting rod 80 is adapted to resume torque by allowing movements due to movements between the frame 24 and the axle 22.

En fonctionnement, le rotor 42 entraîne, par l'intermédiaire de l'organe d'accouplement 62, l'arbre creux 60 en rotation autour de son axe. Cette rotation est transmise, par l'intermédiaire de l'organe d'accouplement 64, au planétaire intérieur 50 du réducteur 36. Le planétaire intérieur 50 entraîne à son tour les satellites 54 qui roulent sur la couronne 52. Ce faisant, les satellites 54 entraînent la rotation du porte-satellites 56 autour de son axe et, de ce fait, la rotation de l'essieu 22.In operation, the rotor 42 drives, via the coupling member 62, the hollow shaft 60 rotated about its axis. This rotation is transmitted, via the coupling member 64, to the inner sun gear 50 of the gearbox 36. The inner sun gear 50 in turn drives the satellites 54 which roll on the ring 52. In doing so, the satellites 54 cause the planet carrier 56 to rotate about its axis and, as a result, the rotation of the axle 22.

En cas de déplacement vertical de l'essieu 22 relativement au châssis 24, l'axe du moteur 34 reste fixe par rapport au châssis 24, alors que l'axe du réducteur 36 suit le déplacement de l'essieu 22. Il s'ensuit un déplacement relatif des axes du moteur 34 et du réducteur 36, qui, s'ils restent parallèles l'un à l'autre, ne sont alors plus alignés. De ce fait, l'arbre creux 60 s'incline relativement à la direction des axes du moteur 34 et du réducteur 36, cette inclinaison étant permise grâce à la forme particulière des galets 72, 74 et à l'emploi des manchons en matériau élastique 78 pour combler les jeux entre les galets 72, 74 et leur cavités de réception respectives 76.In case of vertical displacement of the axle 22 relative to the frame 24, the axis of the motor 34 remains fixed relative to the frame 24, while the axis of the gearbox 36 follows the displacement of the axle 22. It follows a relative displacement of the axes of the motor 34 and the gearbox 36, which, if they remain parallel to one another, are then no longer aligned. As a result, the hollow shaft 60 inclines relative to the direction of the axes of the motor 34 and the gearbox 36, this inclination being permitted thanks to the particular shape of the rollers 72, 74 and the use of the sleeves of elastic material 78 to fill the gaps between the rollers 72, 74 and their respective receiving cavities 76.

Ce mode de réalisation présente l'avantage d'avoir un couple transmis au niveau des organes d'accouplement 62, 64 qui demeure relativement faible, de sorte qu'il est possible d'utiliser des organes d'accouplement légers et peu encombrants. Ce mode de réalisation a cependant l'inconvénient de présenter des masses non suspendues plus élevées, et de nécessiter l'installation d'un palier résistant à de grandes vitesses de rotation à l'interface entre le planétaire intérieur 50 et l'essieu 22.This embodiment has the advantage of having a torque transmitted at the coupling members 62, 64 which remains relatively low, so that it is possible to use lightweight and compact coupling members. This embodiment however has the disadvantage of having higher unsprung masses, and requiring the installation of a bearing resistant to high speeds of rotation at the interface between the inner sun gear 50 and the axle 22.

Dans le deuxième mode de réalisation de la Figure 2, le réducteur 36 est suspendu et constitue l'élément suspendu accouplé à l'arbre creux 60 par l'intermédiaire de l'organe d'accouplement 62, l'élément non suspendu accouplé à l'arbre creux 60 par l'intermédiaire de l'organe d'accouplement 64 étant constitué par l'essieu 22, en particulier par une roue 20 de l'essieu 22. Le rotor 42 du moteur 34 est alors solidaire du planétaire intérieur 50, qui forme ainsi un pignon de sortie du moteur 34 engrenant directement sur le réducteur 36, et le stator 44 est solidaire de la couronne 52.In the second embodiment of the Figure 2 , the gearbox 36 is suspended and constitutes the suspended element coupled to the hollow shaft 60 via the coupling member 62, the unsprung element coupled to the hollow shaft 60 via the coupling member 64 being constituted by the axle 22, in particular by a wheel 20 of the axle 22. The rotor 42 of the motor 34 is then secured to the inner sun gear 50, which thus forms an output gear of the motor 34 meshing directly on the gearbox 36, and the stator 44 is integral with the ring 52.

En fonctionnement, le rotor 42 entraîne directement le planétaire intérieur 50 du réducteur 36. Le planétaire intérieur 50 entraîne à son tour les satellites 54 qui roulent sur la couronne 52. Ce faisant, les satellites 54 entraînent la rotation du porte-satellites 56 autour de son axe. La rotation du porte-satellites 56 est transmise à l'arbre creux 60 par l'intermédiaire de l'organe d'accouplement 62. La rotation de l'arbre creux 60 autour de son axe entraîne finalement la rotation de l'essieu 22 par l'intermédiaire de l'organe d'accouplement 64.In operation, the rotor 42 directly drives the inner sun gear 50 of the gearbox 36. The inner sun gear 50 in turn drives the satellites 54 which roll on the ring 52. In doing so, the satellites 54 cause the planet carrier 56 to rotate around the planet. its axis. The rotation of the planet carrier 56 is transmitted to the hollow shaft 60 via the coupling member 62. The rotation of the hollow shaft 60 about its axis finally causes the rotation of the axle 22 by via the coupling member 64.

En cas de déplacement vertical de l'essieu 22 relativement au châssis 24, les axes du moteur 34 et du réducteur 36 restent fixes par rapport au châssis 24. Même s'ils restent parallèles à l'axe de l'essieu 22, les axes du moteur 34 et du réducteur 36 ne sont alors plus alignés avec l'axe de l'essieu 22. De ce fait, l'arbre creux 60 s'incline relativement à la direction des axes du réducteur 36 et de l'essieu 22, cette inclinaison étant permise grâce à la forme particulière des galets 72, 74 et à l'emploi des manchons en matériau élastique 78 pour combler les jeux entre les galets 72, 74 et leur cavités de réception respectives 76.In case of vertical displacement of the axle 22 relative to the frame 24, the axes of the motor 34 and the gearbox 36 remain fixed relative to the frame 24. Although remain parallel to the axis of the axle 22, the axes of the motor 34 and the gear 36 are no longer aligned with the axis of the axle 22. As a result, the hollow shaft 60 inclines relatively to the direction of the axes of the gearbox 36 and the axle 22, this inclination being allowed thanks to the particular shape of the rollers 72, 74 and the use of the sleeves of elastic material 78 to fill the clearances between the rollers 72, 74 and their respective receiving cavities 76.

Ce mode de réalisation a l'avantage de présenter peu de masses non suspendues. En outre, le fait de lier le moteur 34 au réducteur 36 permet de gagner en compacité de l'ensemble. Toutefois, il en résulte que le couple transmis par les organes d'accouplement 62, 64 est plus important, ce qui nécessite d'utiliser des organes d'accouplement plus lourds et encombrants.This embodiment has the advantage of having few unsprung masses. In addition, the fact of linking the motor 34 to the gearbox 36 makes it possible to gain compactness of the assembly. However, it follows that the torque transmitted by the coupling members 62, 64 is greater, which requires the use of heavier and bulky coupling members.

Grâce à l'invention décrite ci-dessus, l'entraînement de l'essieu est effectué au moyen d'un dispositif alliant puissance et compacité.With the invention described above, the drive of the axle is performed by means of a device combining power and compactness.

Claims (11)

Bogie moteur (10) de véhicule ferroviaire comprenant au moins une paire de roues (20), les roues (20) de la ou chaque paire étant reliées l'une à l'autre par un arbre pour former un essieu (22), le bogie (10) comprenant en outre un moteur (34), sensiblement coaxial à l'essieu (22), pour entraîner l'essieu (22) en rotation autour de son axe, le moteur (34) comprenant un rotor (42) monté autour de l'essieu (22), caractérisé en ce que le moteur (34) entraîne l'essieu (22) en rotation par l'intermédiaire d'un réducteur (36).Railway vehicle engine bogie (10) comprising at least one pair of wheels (20), the wheels (20) of the or each pair being connected to each other by a shaft to form an axle (22), the bogie (10) further comprising a motor (34), substantially coaxial with the axle (22), for driving the axle (22) in rotation about its axis, the motor (34) comprising a rotor (42) mounted around the axle (22), characterized in that the motor (34) drives the axle (22) in rotation through a gear (36). Bogie moteur (10) selon la revendication 1, dans lequel le moteur (34) est interposé entre les deux roues (20) de la paire.Motor bogie (10) according to claim 1, wherein the motor (34) is interposed between the two wheels (20) of the pair. Bogie moteur (10) selon la revendication 1 ou 2, dans lequel le réducteur (36) est un réducteur à train épicycloïdal.The engine bogie (10) according to claim 1 or 2, wherein the reducer (36) is an epicyclic gearbox. Bogie moteur (10) selon l'une quelconque des revendications précédentes, comprenant un châssis (24) et une suspension (30) entre le châssis (24) et l'essieu (22), ladite suspension (24) étant agencée pour permettre un déplacement vertical relatif de l'essieu (22) par rapport au châssis (24), le moteur (34) étant fixé rigidement au châssis (24).A motor bogie (10) as claimed in any one of the preceding claims comprising a frame (24) and a suspension (30) between the frame (24) and the axle (22), said suspension (24) being arranged to allow a relative vertical displacement of the axle (22) relative to the frame (24), the motor (34) being fixedly attached to the frame (24). Bogie moteur (10) selon l'une quelconque des revendications précédentes, dans lequel le réducteur (36) comprend un élément d'engrenage (56) solidaire de l'essieu (22).Motor bogie (10) according to any of the preceding claims, wherein the gear (36) comprises a gear element (56) integral with the axle (22). Bogie moteur (10) selon l'une quelconque des revendications 1 à 4, dans lequel le moteur (34) comprend un pignon de sortie engrenant directement sur le réducteur (36).Motor bogie (10) according to any one of claims 1 to 4, wherein the motor (34) comprises an output gear meshing directly on the gear (36). Bogie moteur (10) selon l'une quelconque des revendications précédentes, comprenant un arbre creux (60) pour la transmission de l'entraînement du moteur (34) à l'essieu (22), l'arbre creux (60) étant interposé entre l'essieu (22) et le rotor (42).Motor bogie (10) according to any of the preceding claims, comprising a hollow shaft (60) for the transmission of the motor drive (34) to the axle (22), the hollow shaft (60) being interposed between the axle (22) and the rotor (42). Bogie moteur (10) selon les revendications 5 et 7 prises ensemble, comprenant un premier organe d'accouplement (62) pour l'accouplement du rotor (42) à l'arbre creux (60), ledit premier organe d'accouplement (62) étant adapté pour permettre une inclinaison de l'axe du rotor (42) relativement à l'axe de l'arbre creux (60).Motor bogie (10) according to claims 5 and 7 taken together, comprising a first coupling member (62) for coupling the rotor (42) to the hollow shaft (60), said first coupling member (62) ) being adapted to allow an inclination of the axis of the rotor (42) relative to the axis of the hollow shaft (60). Bogie moteur (10) selon les revendications 6 et 7 prises ensemble, comprenant un premier organe d'accouplement (64) pour l'accouplement de l'arbre creux (60) à l'essieu (22), ledit premier organe d'accouplement (64) étant adapté pour permettre une inclinaison de l'axe de l'arbre creux (60) relativement à l'axe de l'essieu (22).Motor bogie (10) according to claims 6 and 7 taken together, comprising a first coupling member (64) for coupling the hollow shaft (60) to the axle (22), said first coupling member (64) being adapted to allow inclination of the axis of the hollow shaft (60) relative to the axis of the axle (22). Bogie moteur (10) selon l'une quelconque des revendications 7 à 9, comprenant un deuxième organe d'accouplement (62, 64) pour l'accouplement de l'arbre creux (60) à un pignon d'entrée (50) du réducteur (36), ledit deuxième organe d'accouplement (62, 64) étant adapté pour permettre une inclinaison de l'axe du pignon d'entrée (50) relativement à l'axe de l'arbre creux (60).The engine bogie (10) according to any one of claims 7 to 9, comprising a second coupling member (62, 64) for coupling the hollow shaft (60) to an input gear (50) of the gearbox (36), said second coupling member (62, 64) being adapted to allow inclination of the axis of the input gear (50) relative to the axis of the hollow shaft (60). Bogie moteur (10) selon l'une quelconque des revendications précédentes, dans lequel le moteur (34) est un moteur à rotor interne.The engine bogie (10) according to any one of the preceding claims, wherein the engine (34) is an internal rotor motor.
EP14197408.9A 2013-12-11 2014-12-11 Motor bogie for a rail vehicle in which the motor is substantially coaxial with the wheel axle Active EP2883774B1 (en)

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FR1362429A FR3014399B1 (en) 2013-12-11 2013-12-11 BOGIE RAIL VEHICLE ENGINE IN WHICH THE ENGINE IS SUBSTANTIALLY COAXIAL AT THE AXLE

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FR3014399A1 (en) 2015-06-12
FR3014399B1 (en) 2017-05-26
CN104709293B (en) 2019-01-22
PL2883774T3 (en) 2020-10-19
CN104709293A (en) 2015-06-17
EP2883774B1 (en) 2020-03-04
ES2793652T3 (en) 2020-11-16

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