EP2883773B1 - Bogie moteur de véhicule ferroviaire dans lequel le moteur est sensiblement coaxial à l'essieu - Google Patents

Bogie moteur de véhicule ferroviaire dans lequel le moteur est sensiblement coaxial à l'essieu Download PDF

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Publication number
EP2883773B1
EP2883773B1 EP14196889.1A EP14196889A EP2883773B1 EP 2883773 B1 EP2883773 B1 EP 2883773B1 EP 14196889 A EP14196889 A EP 14196889A EP 2883773 B1 EP2883773 B1 EP 2883773B1
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EP
European Patent Office
Prior art keywords
motor
axle
bogie
chassis
relative
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.)
Active
Application number
EP14196889.1A
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German (de)
English (en)
French (fr)
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EP2883773A1 (fr
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
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Priority to PL14196889T priority Critical patent/PL2883773T3/pl
Publication of EP2883773A1 publication Critical patent/EP2883773A1/fr
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Publication of EP2883773B1 publication Critical patent/EP2883773B1/fr
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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
    • 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

Definitions

  • the present invention relates to a railway vehicle motor 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 to drive the axle in rotation about its axis.
  • a bogie is for example disclosed in the document JP-H08244605 A .
  • 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 each interposed between a half-chassis and an axle, said suspension allowing a relative vertical displacement of the axle relative to the corresponding half-chassis, and means for driving in rotation one axles or each axle.
  • These drive means comprise at least one motor and a kinematic chain ensuring the transmission of the 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 “unsprung”, that is to say linked to the axle, or “suspended”, that is to say linked to the chassis of bogie above the suspensions.
  • These drive means are distinguished by 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 parts they include.
  • EP 1,320,478 a railway vehicle bogie in which the motor is mounted between the wheels of the axle, the motor rotor being integral with the axle and the stator being mounted on the axle by means of bearings, so that the motor is unsprung.
  • a reaction rod articulated to the stator and to the bogie chassis makes it possible to take up the torques and ensure the travel due to movements between the bogie chassis and the axle.
  • the drive means are thus particularly compact. However, they have the disadvantage of having high unsprung masses, which limits the speed of the vehicle. In addition, with constant track and wheel diameter, it is very difficult to increase the driving torque exerted on the axle.
  • Rail vehicles are also known comprising wide low corridors. Such vehicles are generally called “low-floor vehicles”.
  • low-floor vehicles For these vehicles, it is necessary to design specific bogies so that the low central corridor can extend over the entire length of the vehicle, without steps, while passing over the bogies.
  • the central space of the bogie extending longitudinally between the wheels, must be as clear as possible.
  • EP 2,142,411 describes a bogie specially designed for a low-floor vehicle, allowing the fitting of a wide low central corridor in the body of the body, so as to allow access without steps to the whole vehicle.
  • This objective is achieved in particular thanks to a specific arrangement of the engine, which is arranged along an outer edge of the bogie, while being oriented parallel to the direction of travel of the vehicle. If this arrangement effectively clears the central space, it has the disadvantage of requiring an elevation of the floor above the space occupied by the engine, which has the consequence of complicating access to certain parts of the vehicle. rail.
  • An object of the invention is to propose a motor bogie for a rail vehicle making it possible to fit a wide, low corridor in the body of the body, without requiring significant steps to be made in the floor of the rail vehicle to pass over the bogie.
  • the driving bogie incorporates axle drive means which are both compact and powerful, that said drive means are simple to implement, and that the unsprung masses are reduced.
  • the invention relates to a bogie according to claim 1.
  • the motor bogie is according to any one of claims 2 to 9.
  • 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 rail 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 3 , 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 each other by a chassis 24, called interior, comprising two half-chassis each secured to a respective axle 22.
  • internal chassis is meant that the side members 26 of each half-chassis extend inside the template formed by the wheels 20, that is to say that they are arranged between the wheels 20.
  • Each half-frame comprises two longitudinal members 26, extending substantially longitudinally, connected to one another by a cross member (not shown), extending substantially transversely.
  • Each beam 26 rests on axle boxes 28 of an axle 22, said axle boxes 28 being arranged substantially against the wheels 20 of axle 22, between said wheels 20.
  • a primary suspension 30 is interposed between each beam 26 and the axle box 28 on which said beam 26 rests.
  • This primary suspension 30 allows among other things a relative vertical displacement of the axle 22 relative to the half-chassis, that is to say that the half-chassis is movable and suspended relative to the axle 22 in a substantially direction vertical.
  • the two half-chassis are held together so that the axles 22 remain parallel and the bogie 10 does not fold back on itself under the effect of a vertical load.
  • At least one of the axles 22, or both axles 22, is (are) driven (s) in rotation by drive means comprising a motor 34 and a kinematic chain ensuring the transmission of the engine 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.
  • This kinematic chain comprises a reduction gear 36 and a transmission shaft 38, for the transmission of the drive from the motor 34 to the reduction gear 38.
  • the motor 34 is arranged outside the template formed by the wheels 20. In other words, it is arranged transversely outside the bogie 10 relative to the wheels 20.
  • the motor 34 is also substantially coaxial with the axle 22, except for the deflections authorized by the suspension 30.
  • the motor 34 comprises a rotor 42 and a stator 44.
  • the stator 44 is linked to the chassis 24 by a first connecting member 46.
  • This connecting member 46 is adapted to take up the torques between the stator 44 and the chassis 24.
  • the rotor 42 is coaxial with the stator 44.
  • Bearings 48 ensure the connection of the rotor 42 to the stator 44, while allowing the rotation of the rotor 42 about its axis relative to the stator 44.
  • the rotor 42 is integral in rotation with the shaft 38.
  • the stator 44 is mounted around the rotor 42, so that the motor 34 forms an internal rotor motor.
  • the reduction gear 36 is substantially coaxial with the axle 22.
  • the reduction gear 36 is also disposed outside the template formed by the wheels 20. It is in particular disposed at an opposite axial end of the axle 22 relative to the motor 34, so that the motor 34 and the reduction gear 36, together , transversely frame the axle 22.
  • the reducer 36 is a planetary gear reducer. It comprises, in known manner, a plurality of meshing elements 50, 52, 54, 56, including an inner sun gear 50 forming an input pinion of the reduction gear 36, substantially coaxial with the axle 22, a crown 52 coaxial with the sun gear interior 50, a plurality of satellites 54 interposed between the interior planet gear 50 and the crown 52, each being meshed with the interior planet gear 50 and the crown 52, and a planet carrier 56, coaxial with the interior planet gear 50 and the crown 52, on which each satellite 54 is rotatably mounted around its axis.
  • the inner sun gear 50 is integral in rotation with the shaft 38.
  • the crown 52 is linked to the chassis 24 by a second connecting member 58 adapted to take up the torques between the crown 52 and the chassis 24.
  • the planet carrier 56 is integral of the axle 22, in particular of one of the wheels 20 of the axle 22.
  • the second connecting member 58 is preferably a connecting rod allowing the movements due to movements between the chassis 24 and the axle 22.
  • the reduction gear 36 is thus semi-suspended.
  • the axle 22 is hollow and defines an internal axial tubular cavity 60 opening at two axial ends 62, 64 of the axle 22.
  • the shaft 38 extends in said cavity 60, from one to the other of the axial ends 62, 64.
  • the shaft 38 has two opposite coupling sections 66, 68 each projecting outside the cavity 60 at each of the axial ends 62, 64.
  • each of the coupling sections 66, 68 has ribs 74 each projecting radially from a peripheral face of the section 66, 68 and being axially oriented, said ribs 74 being distributed over the periphery of the section 66, 68 and cooperating with grooves complementary (not shown) formed in the walls in the cavity 70, 72 in which it is received.
  • the shaft 38 is substantially coaxial with the axle 22, that is to say that the axis of the shaft 38 intersects the axis of the axle 22, the angle between the two axes always being, in absolute value, less than 1 °.
  • the bogie 10 also comprises an axle braking device 22, adapted to exert a resistant torque on the axle 22 so as to immobilize it in rotation relative to the chassis 24.
  • this braking device comprises a disc brake 76 and a caliper (not shown), the caliper being integral in translation in the longitudinal direction of the chassis 24 or of the reduction gear 36, and being adapted to clamp the brake disc 76 so as to prevent any displacement of the brake disc 76 relative to the stirrup.
  • the reduction gear 36 is interposed between the brake disc 76 and a wheel 20 of the axle 22.
  • the brake disc 76 is in particular secured to the inner sun gear 50.
  • the motor 34 is suspended.
  • the first connecting member 46 is a rigid connecting member, adapted to rigidly link the motor 34 to the chassis 24.
  • each rib 74 comprises a substantially curved free edge 78, that is to say that the free edge 78 of the rib 74, which constitutes the edge of the rib 74 most radially distant from the axis of the shaft 38 , has an approximate shape of an arc.
  • the coupling sections 66, 68 thus form, with the cavities 70, 72 in which they are received, transmission joints.
  • This type of transmission joint is particularly advantageous because it is simple to produce.
  • other transmission seals are used to couple the shaft 38 to the rotor 42 of the motor 34 and to the inner sun gear 50 of the reduction gear 36.
  • transmission joint we understand a mechanical system allowing the mutual drive of two rotating parts whose axes of rotation occupy variable relative positions during their operation.
  • the outer diameter of the shaft 38 is then between 35 and 45 mm, preferably substantially equal to 40 mm, and the diameter of the tubular cavity 60 is between 85 and 95 mm, preferably substantially equal to 90 mm.
  • the rotor 42 drives the transmission shaft 38 in rotation about its axis. This rotation is transmitted, via the second coupling section 68, to the inner sun gear 50 of the reduction gear 36.
  • the inner sun gear 50 in turn drives the satellites 54 which roll on the crown 52. In doing so, the satellites 54 drive the rotation of the planet carrier 56 about its axis and, therefore, the rotation of the axle 22.
  • the axis of the motor 34 remains fixed relative to the chassis 24, while the axis of the reduction gear 36 follows the displacement of the axle 22. It follows a relative displacement of the axes of the motor 34 and of the reduction gear 36, which, if they remain parallel to each other, are then no longer aligned.
  • the transmission shaft 38 tilts relative to the direction of the axes of the motor 34 and of the reduction gear 36, this tilting being permitted by coupling the shaft 38 to the motor 34 and to the reduction gear 36 by l 'Transmission joints.
  • This embodiment makes it possible to limit the unsprung masses.
  • the motor 34 is semi-suspended.
  • the first connecting member 46 is a connecting rod allowing the movements due to movements between the chassis 24 and the axle 22.
  • the axle 22 includes an outer section 80 projecting outside the template formed by the wheels 20, the rotor 42 defining a cylindrical cavity 82 for receiving said outer section 80 and being mounted on said section 80 by means of bearings 84.
  • the rotor 42 drives the transmission shaft 38 in rotation about its axis. This rotation is transmitted, via the second coupling section 68, to the inner sun gear 50 of the reduction gear 36.
  • the inner sun gear 50 in turn drives the satellites 54 which roll on the crown 52. In doing so, the satellites 54 drive the rotation of the planet carrier 56 about its axis and, therefore, the rotation of the axle 22.
  • the axes of the motor 34 and of the reduction gear 36 together follow the displacement of the axle 22.
  • the said axes thus remain aligned.
  • the shaft 38 therefore does not tilt relative to the axle 22, so that it is possible to reduce the diameter of the tubular cavity 60.

Landscapes

  • 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)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
EP14196889.1A 2013-12-11 2014-12-09 Bogie moteur de véhicule ferroviaire dans lequel le moteur est sensiblement coaxial à l'essieu Active EP2883773B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14196889T PL2883773T3 (pl) 2013-12-11 2014-12-09 Wózek silnikowy pojazdu kolejowego, w którym silnik jest zasadniczo współosiowy z osią

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1362423A FR3014398B1 (fr) 2013-12-11 2013-12-11 Bogie moteur de vehicule ferroviaire dans lequel le moteur est sensiblement coaxial a l'essieu

Publications (2)

Publication Number Publication Date
EP2883773A1 EP2883773A1 (fr) 2015-06-17
EP2883773B1 true EP2883773B1 (fr) 2020-06-03

Family

ID=50069205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14196889.1A Active EP2883773B1 (fr) 2013-12-11 2014-12-09 Bogie moteur de véhicule ferroviaire dans lequel le moteur est sensiblement coaxial à l'essieu

Country Status (5)

Country Link
EP (1) EP2883773B1 (pl)
CN (1) CN104709294B (pl)
ES (1) ES2811701T3 (pl)
FR (1) FR3014398B1 (pl)
PL (1) PL2883773T3 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112016005502B4 (de) * 2015-12-03 2022-06-23 Crrc Zhuzhou Locomotive Co., Ltd. Hohlachsenstruktur und Radsatz
FR3081787B1 (fr) * 2018-06-04 2020-08-28 Alstom Transp Tech Ensemble de transmission d'un couple en sortie d'un moteur vers un reducteur et procede de fabrication associe
DE102021207833A1 (de) * 2021-07-22 2023-01-26 Siemens Mobility GmbH Niederflur-Triebfahrwerk mit einseitig angetriebener Radsatzwelle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059489B (de) * 1957-10-08 1959-06-18 Deutsche Bundesbahn Hilfsantrieb fuer von Schienenfahrzeugachsen angetriebene Getriebe
JP2815727B2 (ja) * 1991-07-09 1998-10-27 財団法人鉄道総合技術研究所 鉄道車両用駆動装置
JPH08244605A (ja) * 1995-03-14 1996-09-24 Toyo Electric Mfg Co Ltd 電気車両用駆動装置
DE10047911A1 (de) * 2000-09-27 2002-04-18 Siemens Ag Antrieb eines Radsatzes
WO2006051046A1 (de) 2004-11-11 2006-05-18 Siemens Aktiengesellschaft Halbabgefederter direktantrieb für ein schienenfahrzeug
FR2914609B1 (fr) 2007-04-05 2009-07-10 Alstom Transport Sa Bogie pour vehicule ferroviaire
WO2012169017A1 (ja) * 2011-06-07 2012-12-13 株式会社日立製作所 モノレール用駆動装置及びそれを備えたモノレール用台車

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3014398B1 (fr) 2017-05-26
EP2883773A1 (fr) 2015-06-17
CN104709294B (zh) 2019-01-22
FR3014398A1 (fr) 2015-06-12
PL2883773T3 (pl) 2020-10-19
ES2811701T3 (es) 2021-03-15
CN104709294A (zh) 2015-06-17

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