EP2258596A1 - Driven bogie of a railway vehicle - Google Patents

Driven bogie of a railway vehicle Download PDF

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Publication number
EP2258596A1
EP2258596A1 EP10305591A EP10305591A EP2258596A1 EP 2258596 A1 EP2258596 A1 EP 2258596A1 EP 10305591 A EP10305591 A EP 10305591A EP 10305591 A EP10305591 A EP 10305591A EP 2258596 A1 EP2258596 A1 EP 2258596A1
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EP
European Patent Office
Prior art keywords
axle
frame
motor
bogie
boxes
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10305591A
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German (de)
French (fr)
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EP2258596B1 (en
Inventor
Alain Rodet
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Alstom Transport SA
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Alstom Transport SA
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Publication of EP2258596A1 publication Critical patent/EP2258596A1/en
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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
    • 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
    • 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
    • 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
    • B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
    • B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
    • 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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles

Definitions

  • the present invention relates to a motor 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 at least two longitudinal members resting on axle boxes of each axle, said boxes being disposed between the wheels of said axle, a motor fixed to the chassis extending between the wheels of the axle and causing the rotation of said axle via a coupling and a gearbox.
  • the invention also relates to a railway vehicle comprising such a bogie.
  • each motorized bogie is provided with means for rotating each axle.
  • These drive means comprise at least one motor, at least one gearbox and a mechanical device ensuring the transmission of engine torque from the motor to the axle, and the transmission of the braking torque from the axle to the engine, while allowing the relative movements between the engine and the axle induced by the primary suspensions.
  • 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 primary suspensions.
  • These drive means are differentiated by their ease of integration into the bogie in terms of size, whether in width (that is to say parallel to the axis axle) and length (parallel to the sense of vehicle running). They differ in complexity by the number of pieces they understand.
  • the so-called “semi-suspended motor” traditionally comprises a motor that rests oscillating on the axle by two bearings and on which is fixed a gearbox housing.
  • the motor output gear meshes with a wheel set on the axle.
  • An articulated reaction rod makes it possible to recover the torques and to ensure the movements due to the movements between the bogie frame and the axle.
  • This transmission is simple to implement but has unsprung masses, which limits the speed of the vehicle.
  • the gearbox and the motor are rigidly connected and fixed to the bogie frame.
  • the torques are transmitted between the gearbox output bearing and the axle via a hollow shaft device, which also ensures the movements due to movements between the truck frame and the axle.
  • This transmission increases the size of the bogie in the direction of travel of the vehicle.
  • the place taken by the hollow shaft on the axle also requires adding an intermediate wheel to the gearbox.
  • This solution allows the vehicle to move at high speeds but is complex to implement because it requires a hollow bearing output gearbox, links between this bearing and the hollow shaft side reducer, and between the axle and the hollow shaft.
  • the so-called "semi-suspended reducer” training is a compromise in terms of unsprung masses and complexity between the two previous types of training.
  • the engine is fixed on the bogie frame and the gearbox is fixed on the one hand oscillating on the axle and on the other hand connected to the bogie frame by a reaction rod.
  • a mechanical coupling connects the motor shaft to the input bearing of the gearbox and ensures the movements between the motor output and the input of the gearbox, movements due to the suspensions.
  • the bogie axles are generally connected by an “outside” chassis, in which the longitudinal members are arranged outside the wheels, or by an “inner” chassis, in which the longitudinal members are arranged on the outside. inside the wheels, that is to say between the wheels, on axle boxes also arranged inside the wheels.
  • the inner frame reduces truck mass and reduces manufacturing costs. Such a frame also accommodates the brake calipers outside the frame, which improves the accessibility of the stirrups for possible disassembly, and also improves accessibility to the wheels.
  • a motorized bogie with an inner frame there is little room in the transverse direction for housing a powerful and bulky engine.
  • the only state-of-the-art solution for accommodating a powerful motor and the associated transmission, while limiting the unsprung masses, is the hollow shaft suspension which is complex to implement, as described above. .
  • One of the aims of the invention is to overcome these disadvantages by providing a compact bogie of reduced mass, comprising limited unsprung masses and simple drive means for a powerful motor.
  • the invention relates to a bogie of the aforementioned type, in which one of the axle boxes houses the gearbox of the engine.
  • the unobstructed position in the transverse direction by integrating the gearbox into the axle box thus makes it possible to house a powerful motor between the wheels of the bogies with a type of drive which makes it possible, on the one hand, to limit the unsprung masses by compared to a semi-suspended motor solution, and, secondly, to simplify the assembly compared to a fully suspended motor.
  • Such an articulated frame allows the bogie to overcome the defects of the tracks - or "left" - without hindrance, by allowing the bogie to present points of support on the ground which are not in the same rolling plane without excessive discharges which increase the risk of derailing the vehicle. The roll movement is thus resumed by the bogie frame articulation.
  • 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 motor vehicle 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 a shaft 36 to form an axle 4.
  • the axles 4 are connected to each other by a chassis 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 transverse 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 beam 10 rests on the axle boxes 14, 14 'of an axle 4, said axle boxes 14, 14' being arranged substantially against the wheels 2 of the axle 4, between said wheels 2.
  • the cross member 12 extends to a height less than that of the longitudinal members 10, as shown in FIG. Fig. 3 , which allows to clear a larger space between the two axles 4 of the truck 1.
  • a primary suspension 16 is interposed between each spar 10 and the axle box 14, 14 'on which said spar 10 rests. This primary suspension 16 allows a relative vertical displacement of the axle relative to the half-frame 8, that is to say that the axle 4 is movable and suspended relative to the half-frame in a substantially vertical direction.
  • the cross members 12 of the half-frames 8 are articulated to one another by a hinge joint 18, or ball joint, arranged in the center of the bogie, so as to allow rotation of a half-frame 8 with respect to the other around a substantially longitudinal axis A, said rotation to adapt to the lefts suffered by the bogie.
  • 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. articulation 18.
  • the two half-frames 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 rods 20 are positioned in a horizontal plane offset from the horizontal plane passing through the hinge joint 18.
  • the connecting points of the two connecting rods 20 are positioned in a horizontal plane extending above the horizontal plane passing through the hinge joint 18.
  • the connection points of the two connecting rods extending in a plane extending below horizontal plane passing through the hinge 18.
  • the rods are also spaced in the transverse direction from one another.
  • the difference in height H between the horizontal plane of the connecting 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 clearance shall be approximately 1/3 of the truck's wheelbase for a truck traveling on a normal gauge track, that is to say having a track gauge of 1435 mm.
  • the rods 20 are connected to the beams 10 by hinges 21, mainly around substantially transverse axes, to allow the desired main freedom of the two half-frames 8 relative to each other to cross the left lane.
  • 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. Fig. 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 among other things a vertical relative displacement of the bogie 1 relative to the rail 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 primary suspension 16 which only takes up the vertical deflections is interposed between each spar 10 and the axle box 14, 14 'on which said spar 10 rests.
  • the primary suspension 16 is here made by an assembly consisting of two joints 30 of cylindrical rubber type for example, respectively disposed between the crosspiece 12 and each axle box 14, 14 ', which materialize a transverse axis of rotation of the axle 4 with respect to the bogie half-frame 8, and two rubber studs 32 for example placed respectively between the spar 10 of the half-frame 8 and each axle box 14, 14 '.
  • This primary suspension 16 allows a relative vertical displacement of the axle 4 relative to the half-frame 8, that is to say that the axle 4 is suspended relative to the chassis in a substantially vertical direction.
  • the primary suspension 16 is particularly compact.
  • Such a bogie architecture notably makes it possible to limit the angular deflections between the axis of the motor 24 and the axis of the axle 4.
  • the bogie described is motor, that is to say that at least one of the axles 4 is rotated by a motor 24.
  • 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 the two axles 4 of the bogie 1 are each driven by a motor 24.
  • Each motor is arranged transversely, that is to say that its rotation shaft extends parallel to the axle that drives.
  • the motor 24 is for example fixed relative to the chassis of the bogie 1, fixed for example to a cross member 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.
  • a reducer 28 is placed in one of the two axle boxes 14 of the axle 4 driven by the motor 24.
  • the bearings 38 of the axle box 14 also serve as bearings to the ring gear of the gearbox 28. therefore, the gearbox 28 can be placed closer to the wheel 2.
  • the arrangement of the gearbox 28 in an axle box 14 saves space, which frees space in the transverse direction.
  • the gearbox housing thus plays the role of axle box by providing links with the bogie frame 6 via the joints 30 of the primary suspension 16.
  • a coupling 42 is provided between the motor 24 and the gearbox 28.
  • This coupling is for example with curved teeth, or is of any other type absorbing low deflections between the bogie frame and the axle.
  • the hubs 34 and the transmission shaft 36 are rigidly connected and are therefore rotated by the motor 24.
  • the two axle boxes 14, 14 'of the same axle 4 are connected by a bridge beam 40 to form a dimensionally stable structure.
  • the hubs 34 and the transmission shaft 36 rotate inside the bridge beam 40 by means of bearings 38, which are arranged in the axle boxes 14, 14 '. Since the axle boxes 14, 14 'are functionally different, the bearings 38, 38' are not necessarily identical.
  • each axle box 14, 14 ' is connected to the bogie frame 6 by a hinge 30, previously described.
  • the assembly comprising the axle box 14 incorporating the reducer 28, the bridge beam 40, and the opposite axle box 14 forms a one-piece transmission bridge, rigidly twisted about the axle axis.
  • the value of the rigidity of this assembly is defined by those skilled in the art so as to take the roll movements and to allow the passage to the left of the vehicle around a longitudinal axis, taking into account the joint in two half chassis of the bogie frame.
  • the movements of the coupling 42 are also minimized.
  • the motor bogie according to the invention thus comprises a lightweight interior chassis 6, a powerful and suspended motor 24, and a semi-suspended reducer 28, and a simple transmission to implement.
  • Another advantage is a gain in height of the primary or secondary suspensions, because the roll movements between the axle and the bogie frame are limited by the rigidity of the axle boxes - beam bridge - connecting rods.
  • the transmission is also reduced in length due to the reduced vertical travel provided by the primary suspension 16 at the coupling 32.
  • the transmission shaft 36 may not be disposed inside the bridge beam 40, but outside, for example above the bridge beam 40, as shown in FIG. figure 1 .
  • the bogie frame is not articulated.
  • the transmission assembly must have a minimum torsional flexibility to take roll movements and allow the vehicle the passage of the left.

Abstract

The bogie (1) has two pairs of wheels (2), in which wheels of one pair are connected to one another by a shaft (36) to form an axle (4). The axles are connected to one another by a chassis. The chassis has side members supported on respective axle boxes (14, 14') of each axle. A motor (24) is fixed to the chassis. The motor is extended between the wheels of the axle and rotatably drives one of the axles using a coupling and a reducing gear. One of the axle boxes accommodates the reducing gear.

Description

La présente invention concerne un bogie motorisé 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 au moins deux longerons reposant sur des boîtes d'essieu de chaque essieu, lesdites boîtes étant disposées entre les roues dudit essieu, un moteur fixé au châssis s'étendant entre les roues de l'essieu et entraînant la rotation dudit essieu par l'intermédiaire d'un accouplement et d'un réducteur.The present invention relates to a motor 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 at least two longitudinal members resting on axle boxes of each axle, said boxes being disposed between the wheels of said axle, a motor fixed to the chassis extending between the wheels of the axle and causing the rotation of said axle via a coupling and a gearbox.

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 est pourvu de moyens d'entraînement en rotation de chaque essieu. Ces moyens d'entraînement comprennent au moins un moteur, au moins un réducteur et un dispositif mécanique assurant la transmission du couple moteur du moteur à l'essieu, et la transmission du couple de freinage de l'essieu au moteur, tout en permettant les mouvements relatifs entre le moteur et l'essieu induits par les suspensions primaires. 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 primaires. 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 essieu) et 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 is provided with means for rotating each axle. These drive means comprise at least one motor, at least one gearbox and a mechanical device ensuring the transmission of engine torque from the motor to the axle, and the transmission of the braking torque from the axle to the engine, while allowing the relative movements between the engine and the axle induced by the primary suspensions. 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 primary suspensions. These drive means are differentiated by their ease of integration into the bogie in terms of size, whether in width (that is to say parallel to the axis axle) and length (parallel to the sense of vehicle running). 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.

L'entraînement dit « moteur semi-suspendu » comprend traditionnellement un moteur qui repose oscillant sur l'essieu par deux paliers et sur lequel est fixé un carter de réducteur. Le pignon de sortie moteur engrène sur une roue calée sur l'essieu. Une bielle de réaction articulée permet de reprendre les couples et d'assurer les débattements dus aux mouvements entre le châssis de bogie et l'essieu. Cette transmission est simple à mettre en oeuvre mais présente des masses non suspendues élevées, ce qui limite la vitesse du véhicule.The so-called "semi-suspended motor" traditionally comprises a motor that rests oscillating on the axle by two bearings and on which is fixed a gearbox housing. The motor output gear meshes with a wheel set on the axle. An articulated reaction rod makes it possible to recover the torques and to ensure the movements due to the movements between the bogie frame and the axle. This transmission is simple to implement but has unsprung masses, which limits the speed of the vehicle.

Dans l'entraînement dit « à arbre creux », le réducteur et le moteur sont liés rigidement et fixés au châssis de bogie. Les couples sont transmis entre le palier de sortie du réducteur et l'essieu par un dispositif à arbre creux, qui assure aussi les débattements dus aux mouvements entre le châssis de bogie et l'essieu. Cette transmission augmente l'encombrement du bogie dans le sens de marche du véhicule. La place prise par l'arbre creux sur l'essieu impose de plus d'ajouter une roue intermédiaire au réducteur. Cette solution permet au véhicule de circuler à des vitesses élevées mais elle est complexe à mettre en oeuvre car elle nécessite un palier creux en sortie de réducteur, des liaisons entre ce palier et l'arbre creux coté réducteur, ainsi qu'entre l'essieu et l'arbre creux.In the "hollow shaft" drive, the gearbox and the motor are rigidly connected and fixed to the bogie frame. The torques are transmitted between the gearbox output bearing and the axle via a hollow shaft device, which also ensures the movements due to movements between the truck frame and the axle. This transmission increases the size of the bogie in the direction of travel of the vehicle. The place taken by the hollow shaft on the axle also requires adding an intermediate wheel to the gearbox. This solution allows the vehicle to move at high speeds but is complex to implement because it requires a hollow bearing output gearbox, links between this bearing and the hollow shaft side reducer, and between the axle and the hollow shaft.

L'entraînement dit à « réducteur semi-suspendu » est un compromis en terme de masses non suspendues et de complexité entre les deux précédents types d'entraînement. Le moteur est fixé sur le châssis de bogie et le réducteur est fixé d'une part oscillant sur l'essieu et lié d'autre part au châssis de bogie par une bielle de réaction. Un accouplement mécanique relie l'arbre moteur au palier d'entrée du réducteur et assure les débattements entre la sortie moteur et l'entrée du réducteur, débattements dus aux suspensions.The so-called "semi-suspended reducer" training is a compromise in terms of unsprung masses and complexity between the two previous types of training. The engine is fixed on the bogie frame and the gearbox is fixed on the one hand oscillating on the axle and on the other hand connected to the bogie frame by a reaction rod. A mechanical coupling connects the motor shaft to the input bearing of the gearbox and ensures the movements between the motor output and the input of the gearbox, movements due to the suspensions.

Dans les bogies de véhicule ferroviaire, les essieux du bogie sont généralement reliés par un châssis « extérieur », dans lequel les longerons sont disposés à l'extérieur des roues, ou par un châssis « intérieur », dans lequel 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.In railway vehicle bogies, the bogie axles are generally connected by an "outside" chassis, in which the longitudinal members are arranged outside the wheels, or by an "inner" chassis, in which the longitudinal members are arranged on the outside. inside the wheels, that is to say between the wheels, on axle boxes also arranged inside the wheels.

Le 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 des étriers pour un éventuel démontage, et améliore également l'accessibilité aux roues. Dans le cas d'un bogie motorisé à châssis intérieur, il y a peu de place dans la direction transversale pour loger un moteur puissant et encombrant. La seule solution de l'état de l'art qui permette de loger un moteur puissant et la transmission associée, tout en limitant les masses non suspendues, est la suspension à arbre creux qui est complexe à mettre en oeuvre, comme décrit ci-dessus.The inner frame reduces truck mass and reduces manufacturing costs. Such a frame also accommodates the brake calipers outside the frame, which improves the accessibility of the stirrups for possible disassembly, and also improves accessibility to the wheels. In the case of a motorized bogie with an inner frame, there is little room in the transverse direction for housing a powerful and bulky engine. The only state-of-the-art solution for accommodating a powerful motor and the associated transmission, while limiting the unsprung masses, is the hollow shaft suspension which is complex to implement, as described above. .

L'un des buts de l'invention est de pallier ces inconvénients en proposant un bogie peu encombrant, de masse réduite, comprenant des masses non suspendues limitées et des moyens d'entraînement simples pour un moteur puissant.One of the aims of the invention is to overcome these disadvantages by providing a compact bogie of reduced mass, comprising limited unsprung masses and simple drive means for a powerful motor.

A cet effet, l'invention concerne un bogie du type précité, dans lequel une des boîtes d'essieu loge le réducteur du moteur.For this purpose, the invention relates to a bogie of the aforementioned type, in which one of the axle boxes houses the gearbox of the engine.

La place dégagée selon la direction transversale en intégrant le réducteur dans la boîte d'essieu permet ainsi de loger un moteur puissant entre les roues du bogies avec un type d'entraînement qui permet, d'une part, de limiter les masses non suspendues par rapport à une solution à moteur semi suspendu, et, d'autre part, de simplifier le montage par rapport à un moteur entièrement suspendu.The unobstructed position in the transverse direction by integrating the gearbox into the axle box thus makes it possible to house a powerful motor between the wheels of the bogies with a type of drive which makes it possible, on the one hand, to limit the unsprung masses by compared to a semi-suspended motor solution, and, secondly, to simplify the assembly compared to a fully suspended motor.

Selon d'autres caractéristiques du bogie :

  • les boîtes d'essieu d'un essieu sont reliées l'une à l'autre par une poutre pont, lesdites boîtes d'essieu et ladite poutre pont formant un pont de transmission monobloc, rigide en torsion autour de l'axe essieu ;
  • le bogie moteur comprend une suspension primaire prévue entre le châssis et chaque essieu, ladite suspension primaire étant agencée pour permettre un déplacement vertical relatif de l'essieu par rapport au châssis ;
  • le châssis comprend deux demi-châssis solidaires chacun d'un essieu, chaque demi-châssis comprenant deux longerons reliés l'un à l'autre par une traverse, chaque longeron reposant sur les boîtes d'essieu d'un essieu ;
  • la suspension primaire comprend deux articulations disposées respectivement entre la traverse et chaque boite d'essieu d'un demi-châssis et de deux plots caoutchouc placés respectivement entre le longeron dudit demi-châssis et chaque boite d'essieu ;
  • les traverses de chaque demi-châssis sont articulées l'une à l'autre par un joint d'articulation de sorte à permettre une rotation d'un demi-châssis par rapport à l'autre autour d'un axe sensiblement longitudinal ;
  • chaque longeron d'un demi-châssis est relié au longeron de l'autre demi-châssis en regard par une bielle articulée auxdits longerons par des articulations autour d'axes sensiblement transversaux ;
  • les points de liaison des bielles sont positionnées dans un plan horizontal décalé par rapport au plan horizontal passant par le joint d'articulation ;
  • le moteur est fixé à un demi-châssis par un étrier de fixation, le moteur entraînant en rotation l'essieu solidaire dudit demi-châssis ; et
  • le bogie moteur comprend un autre moteur fixé à l'autre demi-châssis, ledit moteur entraînant en rotation l'autre essieu par l'intermédiaire d'un accouplement et d'un réducteur.
According to other characteristics of the bogie:
  • the axle boxes of an axle are connected to each other by a bridge beam, said axle boxes and said bridge beam forming a monobloc transmission bridge, torsionally rigid about the axle axis;
  • the engine bogie comprises a primary suspension provided between the chassis and each axle, said primary suspension being arranged to allow a relative vertical displacement of the axle relative to the chassis;
  • the chassis comprises two half-frames each secured to an axle, each half-frame comprising two longitudinal members connected to each other by a cross member, each spar resting on the axle boxes of an axle;
  • the primary suspension comprises two joints disposed respectively between the crossbar and each axle box of a half-frame and two rubber studs respectively placed between the spar of said half-frame and each axle box;
  • the cross members of each half-frame are articulated to one another by a hinge joint so as to allow rotation of a half-frame relative to the other about a substantially longitudinal axis;
  • each spar of a half-frame is connected to the spar of the other half-frame opposite by a rod articulated to said longitudinal members by hinges about substantially transverse axes;
  • the connecting points of the connecting rods are positioned in a horizontal plane offset from the horizontal plane passing through the hinge joint;
  • the motor is fixed to a half-frame by a fixing bracket, the motor driving in rotation the fixed axle of said half-frame; and
  • the engine bogie comprises another engine attached to the other half-frame, said motor driving in rotation the other axle via a coupling and a gearbox.

Un tel châssis articulé permet au bogie de franchir les défauts des voies - ou « gauches » - sans encombre, en permettant au bogie de présenter des points d'appuis au sol qui ne sont pas dans un même plan de roulement sans déchargements excessifs qui augmentent les risques de déraillement du véhicule. Le mouvement de roulis est ainsi repris par l'articulation de châssis de bogie.Such an articulated frame allows the bogie to overcome the defects of the tracks - or "left" - without hindrance, by allowing the bogie to present points of support on the ground which are not in the same rolling plane without excessive discharges which increase the risk of derailing the vehicle. The roll movement is thus resumed by the bogie frame articulation.

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 schématique en perspective d'un bogie de véhicule ferroviaire selon un premier mode de réalisation de l'invention,
  • la Fig. 2 est une représentation schématique en perspective d'un bogie de véhicule ferroviaire selon un deuxième mode de réalisation de l'invention,
  • la Fig. 3 est une représentation schématique de dessus d'un essieu entraîné par un moteur et de la transmission entre ledit moteur et ledit essieu.
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 schematic representation in perspective of a railway vehicle bogie according to a first embodiment of the invention,
  • the Fig. 2 is a schematic representation in perspective of a railway vehicle bogie according to a second embodiment of the invention,
  • the Fig. 3 is a schematic top view of a motor-driven axle and the transmission between said engine and said axle.

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 motorisé 1 de véhicule ferroviaire (non représenté), par exemple un métro.With reference to the Fig. 1 a motor vehicle 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 un arbre 36 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 a shaft 36 to form an axle 4. The axles 4 are connected to each other by a chassis 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 transverse 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, 14' d'un essieu 4, lesdites boîtes d'essieu 14, 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. 3, 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 beam 10 rests on the axle boxes 14, 14 'of an axle 4, said axle boxes 14, 14' being arranged substantially against the wheels 2 of the axle 4, between said wheels 2. The cross member 12 extends to a height less than that of the longitudinal members 10, as shown in FIG. Fig. 3 , which allows to clear a larger space between the two axles 4 of the truck 1.

Une suspension primaire 16 est interposée entre chaque longeron 10 et la boîte d'essieu 14, 14' sur laquelle ledit longeron 10 repose. Cette suspension primaire 16 permet un déplacement vertical relatif de l'essieu par rapport au demi-châssis 8, c'est-à-dire que l'essieu 4 est mobile et suspendu par rapport au demi-châssis selon une direction sensiblement verticale.A primary suspension 16 is interposed between each spar 10 and the axle box 14, 14 'on which said spar 10 rests. This primary suspension 16 allows a relative vertical displacement of the axle relative to the half-frame 8, that is to say that the axle 4 is movable and suspended relative to the half-frame in a substantially vertical direction.

Les traverses 12 des demi-châssis 8 sont articulées l'une à l'autre par un joint d'articulation 18, ou rotule, disposé au centre du bogie, 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 subis 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 cross members 12 of the half-frames 8 are articulated to one another by a hinge joint 18, or ball joint, arranged in the center of the bogie, so as to allow rotation of a half-frame 8 with respect to the other around a substantially longitudinal axis A, said rotation to adapt to the lefts suffered by the bogie. 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. articulation 18. The two half-frames 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 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 positionnées 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 selon 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 suffisante 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 égal à 1435 mm.To do this, the connection points of the two rods 20 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 connecting points of the two connecting rods 20 are positioned in a horizontal plane extending above the horizontal plane passing through the hinge joint 18. According to another embodiment, the connection points of the two connecting rods extending in a plane extending below horizontal plane passing through the hinge 18. The rods are also spaced in the transverse direction from one another. The difference in height H between the horizontal plane of the connecting 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 clearance shall be approximately 1/3 of the truck's wheelbase for a truck traveling on a normal gauge track, that is to say having a track gauge of 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 beams 10 by hinges 21, mainly around substantially transverse axes, to allow the desired main freedom of the two half-frames 8 relative to each other to cross the left lane. The joints 21 of the connecting rods can be of the dry spherical ball type or of the spherical or cylindrical rubber articulation type.

Selon un 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 Fig. 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 entre autres 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.According to one 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. Fig. 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 among other things a vertical relative displacement of the bogie 1 relative to the rail vehicle on which said bogie 1 is mounted. The secondary suspension 22 may be of the pneumatic type or of the elastomer suspension type.

La suspension primaire 16 qui ne reprend que les débattements verticaux est interposée entre chaque longeron 10 et la boîte d'essieu 14, 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, 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, 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.The primary suspension 16 which only takes up the vertical deflections is interposed between each spar 10 and the axle box 14, 14 'on which said spar 10 rests. The primary suspension 16 is here made by an assembly consisting of two joints 30 of cylindrical rubber type for example, respectively disposed between the crosspiece 12 and each axle box 14, 14 ', which materialize a transverse axis of rotation of the axle 4 with respect to the bogie half-frame 8, and two rubber studs 32 for example placed respectively between the spar 10 of the half-frame 8 and each axle box 14, 14 '. This primary suspension 16 allows a relative vertical displacement of the axle 4 relative to the half-frame 8, that is to say that the axle 4 is suspended relative to the chassis in a substantially vertical direction. The primary suspension 16 is particularly compact.

Elle présente également l'avantage de permettre une diminution des masses non suspendues, avantage important surtout dans le cas d'un bogie motorisé.It also has the advantage of allowing a reduction of unsprung masses, an important advantage especially in the case of a motorized bogie.

Une telle architecture de bogie permet notamment de limiter les débattements angulaires entre l'axe du moteur 24 et l'axe de l'essieu 4.Such a bogie architecture notably makes it possible to limit the angular deflections between the axis of the motor 24 and the axis of the axle 4.

Le bogie décrit est 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, les deux essieux 4 du bogie 1 sont entraînés chacun par un moteur 24. Chaque moteur est disposé transversalement, c'est-à-dire que son arbre de rotation s'étend parallèlement à l'essieu qu'il entraîne.The bogie described is 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 the two axles 4 of the bogie 1 are each driven by a motor 24. Each motor is arranged transversely, that is to say that its rotation shaft extends parallel to the axle that drives.

Le moteur 24 est par exemple fixe par rapport au châssis 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 of the bogie 1, fixed for example to a cross member 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.

Un réducteur 28 est placé dans l'une des deux boîtes d'essieu 14 de l'essieu 4 entraîné par le moteur 24. Les paliers 38 de la boite d'essieu 14 servent aussi de paliers à la couronne dentée du réducteur 28. De ce fait, le réducteur 28 peut être placé au plus près de la roue 2. La disposition du réducteur 28 dans une boîte d'essieu 14 permet de réaliser une économie de place, ce qui libère de l'espace dans la direction transversale. Le carter de réducteur joue ainsi le rôle de boite d'essieu en assurant les liaisons avec le châssis 6 de bogie par l'intermédiaire des articulations 30 de la suspension primaire 16.A reducer 28 is placed in one of the two axle boxes 14 of the axle 4 driven by the motor 24. The bearings 38 of the axle box 14 also serve as bearings to the ring gear of the gearbox 28. therefore, the gearbox 28 can be placed closer to the wheel 2. The arrangement of the gearbox 28 in an axle box 14 saves space, which frees space in the transverse direction. The gearbox housing thus plays the role of axle box by providing links with the bogie frame 6 via the joints 30 of the primary suspension 16.

Comme représenté sur la Fig. 3, un accouplement 42 est prévu entre le moteur 24 et le réducteur 28. Cet accouplement est par exemple à dentures bombées, ou est de tout autre type absorbant de faibles débattements entre le châssis de bogie et l'essieu.As shown on the Fig. 3 a coupling 42 is provided between the motor 24 and the gearbox 28. This coupling is for example with curved teeth, or is of any other type absorbing low deflections between the bogie frame and the axle.

Le moyen d'entraînement est décrit ci-après :

  • l'arbre de rotation du moteur 24 est lié en sortie à l'entrée de l'accouplement 42,
  • la sortie de l'accouplement 42 est liée à l'arbre d'entrée du réducteur 28,
  • l'engrenage de sortie du réducteur 28 est lié à un moyeu 34, qui est fixé d'une part au centre de la roue 2 et est monté coaxialement d'autre part sur un arbre de transmission 36, par exemple une barre de transmission cannelée,
  • l'arbre de transmission 36 est lié à son extrémité opposée à un second moyeu 34', lui-même fixé au centre de la roue 2 opposée.
The driving means is described below:
  • the rotation shaft of the motor 24 is linked at the output to the input of the coupling 42,
  • the output of the coupling 42 is connected to the input shaft of the gearbox 28,
  • the output gear of the reducer 28 is connected to a hub 34, which is fixed firstly to the center of the wheel 2 and is mounted coaxially on the other hand on a transmission shaft 36, for example a splined transmission bar ,
  • the transmission shaft 36 is connected at its opposite end to a second hub 34 ', itself fixed to the center of the opposite wheel 2.

Les moyeux 34 et l'arbre de transmission 36 sont liés rigidement et sont donc entraînés en rotation par le moteur 24.The hubs 34 and the transmission shaft 36 are rigidly connected and are therefore rotated by the motor 24.

Les deux boites d'essieu 14, 14' d'un même essieu 4 sont reliés par une poutre pont 40 pour former une structure indéformable. Les moyeux 34 et l'arbre de transmission 36 tournent à l'intérieur de la poutre pont 40 au moyen de paliers 38, qui sont disposés dans les boîtes d'essieu 14, 14'. Comme les boites d'essieu 14, 14' sont fonctionnellement différentes, les paliers 38, 38' ne sont pas nécessairement identiques.The two axle boxes 14, 14 'of the same axle 4 are connected by a bridge beam 40 to form a dimensionally stable structure. The hubs 34 and the transmission shaft 36 rotate inside the bridge beam 40 by means of bearings 38, which are arranged in the axle boxes 14, 14 '. Since the axle boxes 14, 14 'are functionally different, the bearings 38, 38' are not necessarily identical.

De plus, chaque boîte d'essieu 14, 14' est liée au châssis 6 de bogie par une articulation 30, précédemment décrite.In addition, each axle box 14, 14 'is connected to the bogie frame 6 by a hinge 30, previously described.

L'ensemble comprenant la boite d'essieu 14 incorporant le réducteur 28, la poutre pont 40, et la boîte d'essieu 14 opposée forme un pont de transmission monobloc, rigide en torsion autour de l'axe essieu. La valeur de la rigidité de cet ensemble est définie par l'homme du métier de manière à prendre les mouvements de roulis et à permettre le passage aux gauches du véhicule autour d'un axe longitudinal, en tenant compte de l'articulation en deux demi-châssis du châssis de bogie. Comme une telle architecture de bogie minimise les débattements en roulis, les débattements de l'accouplement 42 sont aussi minimisés. Ces mouvements faibles permettent d'installer un accouplement à dentures entre le moteur et le réducteur qui prennent peu de débattements angulaires.The assembly comprising the axle box 14 incorporating the reducer 28, the bridge beam 40, and the opposite axle box 14 forms a one-piece transmission bridge, rigidly twisted about the axle axis. The value of the rigidity of this assembly is defined by those skilled in the art so as to take the roll movements and to allow the passage to the left of the vehicle around a longitudinal axis, taking into account the joint in two half chassis of the bogie frame. As such a bogie architecture minimizes the roll movements, the movements of the coupling 42 are also minimized. These low movements make it possible to install a gear coupling between the motor and the gearbox that take little angular deflection.

Un tel agencement de transmission est particulièrement peu encombrant. Le bogie moteur selon l'invention comprend ainsi un châssis 6 intérieur léger, un moteur 24 puissant et suspendu, et un réducteur 28 semi-suspendu, ainsi qu'une transmission simple à mettre en oeuvre.Such a transmission arrangement is particularly compact. The motor bogie according to the invention thus comprises a lightweight interior chassis 6, a powerful and suspended motor 24, and a semi-suspended reducer 28, and a simple transmission to implement.

Un autre avantage est un gain de place en hauteur des suspensions primaire ou secondaire, car les mouvements de roulis entre l'essieu et le châssis de bogie sont limités par la rigidité de l'ensemble boîtes d'essieu - poutre pont - bielles. La transmission est aussi de longueur réduite grâce au débattement vertical réduit procuré par la suspension primaire 16 au niveau de l'accouplement 32.Another advantage is a gain in height of the primary or secondary suspensions, because the roll movements between the axle and the bogie frame are limited by the rigidity of the axle boxes - beam bridge - connecting rods. The transmission is also reduced in length due to the reduced vertical travel provided by the primary suspension 16 at the coupling 32.

En variante, l'arbre de transmission 36 peut ne pas être disposé à l'intérieur de la poutre pont 40, mais à l'extérieur, par exemple au-dessus de la poutre pont 40, comme cela est représenté en figure 1.In a variant, the transmission shaft 36 may not be disposed inside the bridge beam 40, but outside, for example above the bridge beam 40, as shown in FIG. figure 1 .

En variante, le châssis de bogie n'est pas articulé. Dans ce cas, l'ensemble de transmission doit présenter une souplesse torsionnelle minimale pour prendre les mouvements de roulis et permettre au véhicule le passage des gauches.Alternatively, the bogie frame is not articulated. In this case, the transmission assembly must have a minimum torsional flexibility to take roll movements and allow the vehicle the passage of the left.

Claims (11)

Bogie moteur (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 au moins deux longerons (10) reposant sur des boîtes d'essieu (14, 14') de chaque essieu (4), lesdites boîtes (14, 14') étant disposées entre les roues (2) dudit essieu (4), un moteur (24) fixé au châssis (6) s'étendant entre les roues (2) de l'essieu (4) et entraînant la rotation dudit essieu (4) par l'intermédiaire d'un accouplement (32) et d'un réducteur (28), caractérisé en ce qu'une des boîtes d'essieu (14) loge le réducteur (28) du moteur (24).Railway engine bogie (1) 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 at least two longitudinal members (10) resting on axle boxes (14, 14 ') of each axle (4), said boxes (14, 14 ') being arranged between the wheels (2) of said axle (4), a motor (24) fixed to the chassis (6) extending between the wheels (2) of the axle (4) and causing said axle to rotate ( 4) via a coupling (32) and a gearbox (28), characterized in that one of the axle boxes (14) houses the gearbox (28) of the motor (24). Bogie moteur selon la revendication 1, caractérisé en ce que les boîtes d'essieu (14, 14') d'un essieu (4) sont reliées l'une à l'autre par une poutre pont (40), lesdites boîtes d'essieu (14, 14') et ladite poutre pont (40) formant un pont de transmission monobloc, rigide en torsion autour de l'axe essieu (4).Motor bogie according to claim 1, characterized in that the axle boxes (14, 14 ') of an axle (4) are connected to each other by a bridge beam (40), said boxes axle (14, 14 ') and said bridge beam (40) forming a one-piece transmission bridge, torsionally rigid about the axle axis (4). Bogie moteur selon la revendication 1 ou 2, caractérisé en ce qu'il comprend une suspension primaire (16) prévue entre le châssis (6) et chaque essieu (4), ladite suspension primaire (16) étant agencée pour permettre un déplacement vertical relatif de l'essieu (4) par rapport au châssis (6).Bogie engine according to claim 1 or 2, characterized in that it comprises a primary suspension (16) provided between the frame (6) and each axle (4), said primary suspension (16) being arranged to allow relative vertical displacement the axle (4) relative to the chassis (6). Bogie moteur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le châssis (6) comprend deux demi-châssis (8) solidaires chacun d'un essieu (4), chaque demi-châssis (8) comprenant deux longerons (10) reliés l'un à l'autre par une traverse (12), chaque longeron (10) reposant sur les boîtes d'essieu (14,14') d'un essieu (4).Bogie engine according to any one of claims 1 to 3, characterized in that the frame (6) comprises two half-frames (8) each secured to an axle (4), each half-frame (8) comprising two longitudinal members (10) connected to each other by a cross member (12), each spar (10) resting on the axle boxes (14,14 ') of an axle (4). Bogie moteur selon la revendication 4 lorsqu'elle dépend de la revendication 3, caractérisée en ce que la suspension primaire (16) comprend deux articulations (30) disposées respectivement entre la traverse (12) et chaque boite d'essieu (14, 14') d'un demi-châssis (8) et de deux plots caoutchouc (32) placés respectivement entre le longeron (10) dudit demi-châssis (8) et chaque boite d'essieu (14, 14').Motor bogie according to claim 4 when dependent on claim 3, characterized in that the primary suspension (16) comprises two joints (30) respectively arranged between the crossmember (12) and each axle box (14, 14 '). ) a half-frame (8) and two rubber pads (32) respectively placed between the spar (10) of said half-frame (8) and each axle box (14, 14 '). Bogie moteur selon la revendication 4 ou 5, caractérisé en ce que les traverses (12) de chaque demi-châssis (8) sont articulées l'une à l'autre par un joint 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.Motor bogie according to claim 4 or 5, characterized in that the crosspieces (12) of each half-frame (8) are articulated to one another by a hinge joint (18) so as to allow rotation a half-frame (8) relative to the other about a substantially longitudinal axis (A). Bogie moteur selon l'une quelconque des revendications 4 ou 6, caractérisé en ce que chaque longeron (10) d'un demi-châssis (8) est relié au longeron (10) de l'autre demi-châssis (8) en regard par une bielle (20) articulée auxdits longerons (10) par des articulations (21) autour d'axes sensiblement transversaux.Bogie engine according to any one of claims 4 or 6, characterized in that each spar (10) of a half-frame (8) is connected to the spar (10) of the other half-frame (8) facing by a connecting rod (20) articulated to said longitudinal members (10) by hinges (21) about substantially transverse axes. Bogie moteur selon la revendication 7 lorsqu'elle dépend de la revendication 6, caractérisé en ce que les points de liaison des bielles (20) sont positionnées dans un plan horizontal décalé par rapport au plan horizontal passant par le joint d'articulation (18).Motor bogie according to claim 7 when dependent on claim 6, characterized in that the connection points of the connecting rods (20) are positioned in a horizontal plane offset from the horizontal plane passing through the hinge joint (18) . Bogie moteur selon l'une quelconque des revendications 4 à 8, caractérisé en ce que le moteur (24) est fixé à un demi-châssis (8) par un étrier de fixation (26), le moteur (24) entraînant en rotation l'essieu (4) solidaire dudit demi-châssis (8).Motor bogie according to any one of claims 4 to 8, characterized in that the motor (24) is fixed to a half-frame (8) by a fixing bracket (26), the motor (24) driving in rotation axle (4) secured to said half-frame (8). Bogie moteur selon la revendication 9, caractérisé en ce qu'il comprend un autre moteur (24) fixé à l'autre demi-châssis (8), ledit moteur (24) entraînant en rotation l'autre essieu (4) par l'intermédiaire d'un accouplement (42) et d'un réducteur (28).Motor bogie according to claim 9, characterized in that it comprises another motor (24) fixed to the other half-frame (8), said motor (24) driving the other axle (4) in rotation by the intermediate of a coupling (42) and a gear (28). Véhicule ferroviaire comprenant au moins un bogie selon l'une quelconque des revendications 1 à 10.Railway vehicle comprising at least one bogie according to any one of claims 1 to 10.
EP10305591.9A 2009-06-05 2010-06-04 Driven bogie of a railway vehicle Active EP2258596B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0953728A FR2946307B1 (en) 2009-06-05 2009-06-05 BOGIE RAILWAY VEHICLE ENGINE COMPRISING A SEMI-SUSPENDED ENGINE

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EP2258596A1 true EP2258596A1 (en) 2010-12-08
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EP (1) EP2258596B1 (en)
KR (1) KR101703784B1 (en)
CN (1) CN101934799B (en)
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FR3081787A1 (en) * 2018-06-04 2019-12-06 Alstom Transport Technologies ASSEMBLY FOR TRANSMITTING A TORQUE FROM A MOTOR TO A REDUCER AND METHOD FOR MANUFACTURING SAME
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BRPI1002141A2 (en) 2012-02-07
ES2433426T3 (en) 2013-12-11
DK2258596T3 (en) 2013-11-18
CN101934799A (en) 2011-01-05
FR2946307A1 (en) 2010-12-10
FR2946307B1 (en) 2011-08-05
KR20100131393A (en) 2010-12-15
KR101703784B1 (en) 2017-02-08
BRPI1002141B1 (en) 2020-02-18
RU2526404C2 (en) 2014-08-20
US8171861B2 (en) 2012-05-08
BRPI1002141A8 (en) 2016-06-21
US20100307370A1 (en) 2010-12-09
EP2258596B1 (en) 2013-08-14
CN101934799B (en) 2014-11-26
RU2010122942A (en) 2011-12-10

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