EP4186773A1 - Drehgestell für schienenfahrzeug mit reduziertem platzbedarf - Google Patents

Drehgestell für schienenfahrzeug mit reduziertem platzbedarf Download PDF

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Publication number
EP4186773A1
EP4186773A1 EP22209045.8A EP22209045A EP4186773A1 EP 4186773 A1 EP4186773 A1 EP 4186773A1 EP 22209045 A EP22209045 A EP 22209045A EP 4186773 A1 EP4186773 A1 EP 4186773A1
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EP
European Patent Office
Prior art keywords
bogie
torsion
wheel
rotation
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
EP22209045.8A
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English (en)
French (fr)
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EP4186773B1 (de
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 Holdings SA
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Alstom Holdings SA
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Publication date
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Publication of EP4186773A1 publication Critical patent/EP4186773A1/de
Application granted granted Critical
Publication of EP4186773B1 publication Critical patent/EP4186773B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • 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
    • 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
    • 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
    • B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
    • B61F5/20—Centre bearings or other swivel connections between underframes and bolsters or bogies with springs allowing transverse movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50—Other details
    • B61F5/52—Bogie frames

Definitions

  • the present invention relates to a railway vehicle bogie, in particular for an urban railway vehicle such as a tram or a metro.
  • the invention relates in particular to a motorized bogie, preferably intended to equip a low-floor vehicle. More particularly, the invention relates to a motorized bogie of the single-axle type, that is to say comprising an axle structure carrying two wheels. Such a bogie generally has a large bulk, which it is desired to reduce in order to optimize the height and the width of the floor of the vehicle.
  • the object of the invention is in particular to provide a bogie which takes up little space and whose mass is reduced.
  • the structure of the bogie is formed by the casings of the motors, which carry all the elements constituting the bogie. This makes it possible to limit the size of the bogie, which does not comprise any additional structural elements. In the absence of an additional bogie structure, the torsion bars form a suspension stage with reduced overall dimensions.
  • the bogie 10 is intended to equip a railway vehicle, preferably an urban railway vehicle such as a tramway or a metro.
  • the bogie 10 is intended to carry a body of the railway vehicle.
  • a longitudinal direction X is defined, which is the general direction in which the vehicle extends, a vertical direction Z perpendicular to the longitudinal direction X, and a transverse direction Y perpendicular to the longitudinal X and vertical directions. Z.
  • the railway vehicle has a low floor, so that the bogie 10 must have a free space allowing the arrangement of such a low floor, as will be described later.
  • the bogie 10 comprises an axle structure 12 carrying two wheels 14.
  • the bogie 10 described comprises a single axle structure 12.
  • the axle structure 12 comprises two motors 16, each associated with a respective one of the wheels 14.
  • Each motor comprises a casing 18 conventionally housing a stator 17, integral with the casing 18, and a rotor 19 rotatable relative to the stator 17.
  • the rotor 19 is intended to drive the corresponding wheel 14 in rotation. As shown in the figure 2 , the rotor 19 of the motor 16 rotates an output shaft 21.
  • the axle structure 12 comprises a crosspiece 20, extending parallel to the transverse direction Y, connecting the two casings 18 to each other.
  • This crosspiece 20 is secured to each casing 18, for example by screwing or any other possible fixing means.
  • the crosspiece 20 is fixed to each casing 18 in a lower zone of this casing 18, so as to present a U-shaped profile with these casings 18, each casing 18 forming a branch of the U and the crosspiece 20 forming the connecting part between the branches of the U.
  • the lower zone is defined as being disposed vertically (in the vertical direction Z) below an axis of rotation of the wheels 14.
  • the crosspiece 20 extends below the axis of rotation of the wheels 14 .
  • the bogie 10 can carry a low-floor vehicle body defining a corridor, the width of which is limited by the distance between the motors 16, and the height depends on the height of the crosspiece 20.
  • axle structure 12 forms the structural base of the bogie 10, the entire bogie being mounted around this axle structure 12, and carried by this axle structure 12.
  • the axle structure 12 comprises, for each wheel 14, a planetary gear reduction gear 22, kinematically connecting the rotor of the motor 16 to the wheel 14, as shown in more detail on the figure 2 .
  • a reducer 22 makes it possible to have a motor 16 having reduced dimensions, by multiplying the torque supplied by the motor 16.
  • such a reducer 22 could be dispensed with, but the motor 16 would present then larger dimensions.
  • the embodiment described is preferred.
  • a first reduction stage can be provided housed in the casing 18, arranged kinematically between the rotor 19 and the output shaft 21.
  • the output shaft 21 passes through the wheel 14 concentric thereto. More particularly, the output shaft 21 passes through a bearing 23 (also called “rocket") around which the wheel 14 is mounted in rotation.
  • the bearing 23 is integral with the casing 18.
  • the planetary gear reducer 22 comprises an internal sun gear 22A (also called “pinion”), connected to the rotor 19 of the motor 16. More particularly, the internal sun gear 22A is carried by the output shaft 21, at the end of this output shaft 21 which is opposed to motor 16.
  • the reducer 22 also comprises a fixed outer sun gear 22B (also called the "crown"). To this end, the outer sun gear 22B is secured to the bearing 23, via at least one connecting member 25.
  • the reducer 22 also comprises a plurality of satellites 22C, meshing with the inner 22A and outer 22B sun gears.
  • the reducer 22 comprises between three and five satellites 22C.
  • the satellites 22C are carried conventionally by a planet carrier 22D common to these satellites.
  • This planet carrier 22D is preferably secured to a gearbox 22E.
  • This box 22E houses the inner 22A and outer 22B sun gears as well as the satellites 22C, which are thus protected by this box 22E.
  • the wheel 14 is fixed in rotation to this casing 22E, therefore fixed in rotation to the planet carrier 22D.
  • the reducer 22 preferably has a high reduction ratio, for example of approximately 5, in order to allow the use of a motor of reduced dimensions.
  • the axle structure 12 also comprises, for each wheel 14, a device 24 for braking this wheel.
  • Each braking device 24 comprises at least one brake disc 26 integral in rotation with the wheel 14, and a caliper 28 intended to enclose the brake disc 26.
  • the brake disc 26 is fixed to the casing 22E of the planetary gear reduction gear 22, and therefore integral in rotation with the wheel 14 via this casing 22E.
  • Stirrup 28 is carried by a support device 30 secured to casing 18. More particularly, support device 30 comprises at least one arm 32 directly fixed to casing 18 and carrying a longitudinal bar 34, which extends parallel to the longitudinal direction X. The stirrup 28 is then fixed to the said longitudinal bar 34.
  • the support device 30 comprises two arms 32, together carrying the longitudinal bar 34.
  • Each arm 32 extends for example substantially radially relative to the axis of rotation of the corresponding wheel 14, but any other orientation is possible.
  • the bogie 10 also includes secondary braking means 36.
  • the secondary braking means 36 comprise for example, for each wheel 14, two electromagnetic pads 38, for example arranged on either side of the wheel 14 in the longitudinal direction X.
  • the two electromagnetic pads 38 are interconnected by a connecting bar 40.
  • the connecting bar 40 is arranged outside a space delimited transversely by the two wheels 14.
  • the electromagnetic pads 38 are intended to cooperate by friction with a rail on which the wheel 14 runs, when they are activated. More particularly, when the electromagnetic pads 38 are activated, they are attracted by magnetism by the rail, and thus come into contact with this rail to rub against it.
  • the electromagnetic pads 38 each comprise, for example, a coil capable of generating a magnetic field when an electric current passes through it. Such an electric current is injected into the coil when braking is commanded.
  • the electromagnetic pads 38 are carried by transverse elements 42. More particularly, the bogie 10 comprises two transverse elements 42, extending parallel to the crosspiece 20, each transverse element 42 carrying, at each of its ends, one of the pads electromagnetic 38.
  • Each transverse element 42 is carried by the casings 18, and in particular suspended from each of the casings 18 via at least one elastically deformable support element 44.
  • This support element 44 is elastically returned to a rest position in which the electromagnetic pads 38 are separated from the rails.
  • the electromagnetic pads 38 when the electromagnetic pads 38 are activated, they approach the rails by deforming the support elements 44, and when the electromagnetic pads 38 are deactivated, the support elements 44 call them away from the rails by elasticity.
  • the transverse elements 42 are also connected to the casings 18 by sliding links 45, allowing the movement of the transverse elements 42 only in the vertical direction Z.
  • the sliding connections 45 also allow any transverse forces to be taken up by the casings 18.
  • the transverse elements 42 are arranged at a height lower than the height of the crosspiece 20, these heights being considered in the vertical direction with respect to a reference, for example a floor.
  • the bogie 10 also comprises suspension means 46 for supporting the rail vehicle body.
  • the suspension means 46 comprise torsion bars 48 arranged on either side of the crosspiece 20 in the longitudinal direction X. More particularly, in the example described, the suspension means 46 comprise four torsion bars 48, distributed into two sets of two bars 48 each, the sets being arranged on either side of the crosspiece 20 in the longitudinal direction X.
  • Each torsion bar 48 extends along a torsion axis, which is parallel to the transverse direction Y.
  • Each set of two torsion bars 48 carries supports intended to be fixed to the body of the railway vehicle. More specifically, each assembly comprises a central support 50 and two side supports 51. The two torsion bars 48 are aligned, and each have a first end connected to the central support 50, and a second end connected to a connecting device 49 connected to a respective one of the casings 18, passing through a lateral support 51 close to this second end.
  • Each support 50, 51 comprises a central orifice in which is inserted the torsion bar or bars 48.
  • the central orifice of the central support 50 and the torsion bars 48 comprise complementary grooves, intended to secure this central support the ends of the torsion bars 48 which are linked to it, around the torsion axis.
  • Each connecting device 49 is linked in rotation to the corresponding torsion bar 48, around the torsion axis, for example by cooperation of complementary grooves.
  • each torsion bar 48 is able to work in torsion between the central support 50 and the connecting device, when these are angularly offset relative to each other.
  • Each support 50, 51 comprises a fixing plate 53, substantially planar, intended to be fixed to the rail vehicle body, for example by screwing, bolting, or any other technically conceivable means.
  • Each fixing plate 53 extends substantially in a plane perpendicular to the vertical direction Z.
  • Each link device 49 comprises a link lever 52 and a first connecting rod 54.
  • Each link lever 52 extends between a first end connected with the torsion bar 48 (as previously defined) and a second end connected with the first link 54.
  • Each first connecting rod 54 extends between the connecting lever 52 and a respective one of the arms 32.
  • the torsion bars 48 are thus suspended relative to the arms 32, via these first connecting rods 54 and connecting levers 52.
  • each first connecting rod 54 is connected to the corresponding arm 32 by a first pivot connection with an axis parallel to the transverse direction Y, and to the corresponding lever 52 by a second pivot connection with an axis parallel to the transverse direction Y.
  • the first connecting rods 54 thus allow a relative movement of the body with respect to the bogie, in particular a rotation around a vertical axis, when the first connecting rods 54 connected to one of the casings 18 tilt in a first direction of rotation and the first connecting rods 54 connected to the other casing 18 tilt in a second direction of rotation opposite to the first direction of rotation.
  • each damping cylinder 55 has an upper end connected to the body (generally by a pivot connection with an axis parallel to the transverse direction), and a lower end connected to the corresponding lever 52 (generally by a pivot connection with an axis parallel to the transverse direction, and preferably close to the connection with the first connecting rod 54 corresponding).
  • the torsion bars 48 form a suspension between the body and the bogie 10. Indeed, when the body is subjected to a load, the supports 50, 51 are subjected to a downward vertical force, without changing their orientation which is imposed by connecting their plates 53 with the body, which leaves these plates horizontal.
  • the load tends to apply a torque to the levers 52, while the central support 50 remains fixed in rotation, so that the torsion bars 48 work in torsion, thus achieving a torsion suspension, in parallel with the damping cylinders 55.
  • the bogie 10 also comprises means for pivoting the body relative to the bogie about a vertical axis.
  • pivoting means comprise a connecting member 56, carried by the crosspiece 20 and connected to this crosspiece 20 by a pivot connection with an axis parallel to the vertical direction Z.
  • the connecting member 56 is connected to the body by second connecting rods 58, for example two second connecting rods 58.
  • Each second connecting rod 58 has a first end connected to the connecting member 56 by a pivot connection with an axis parallel to the vertical direction Z, and a second end connected to the body by a pivot connection with an axis perpendicular to the vertical direction Z.
  • the pivoting means also comprise at least one drive cylinder 60, each drive cylinder 60 extending between a first end connected to one of the arms 32, and a second end connected to the body.
  • the drive cylinders 60 are preferably hydraulic cylinders.
  • the drive cylinders 60 are preferably driven to orient the body with respect to the bogie 10 around a vertical axis, in particular when cornering.
  • the drive cylinders 60 are controlled automatically, by means of position sensors.
  • one of the drive cylinders 60 is extended and the other is retracted, so that the body undergoes opposite longitudinal forces on either side of the vertical axis, causing the pivoting.
  • first suspended connecting rods 54 are rotatable relative to the corresponding arms 32, so that they can follow the longitudinal movements of the drive cylinders 60.
  • the bogie 10 has different functions of a bogie (in particular suspension of the body, orientation of the body around a vertical axis, main braking via braking disc, braking secondary via electromagnetic pads%), all with a small footprint.
  • This reduced size is mainly linked to the fact that the entire bogie is mounted on the casings 18 of the motors 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
EP22209045.8A 2021-11-25 2022-11-23 Drehgestell für schienenfahrzeug mit reduziertem platzbedarf Active EP4186773B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2112522A FR3129352B1 (fr) 2021-11-25 2021-11-25 Bogie de véhicule ferroviaire à encombrement réduit

Publications (2)

Publication Number Publication Date
EP4186773A1 true EP4186773A1 (de) 2023-05-31
EP4186773B1 EP4186773B1 (de) 2023-12-27

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ID=80999348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22209045.8A Active EP4186773B1 (de) 2021-11-25 2022-11-23 Drehgestell für schienenfahrzeug mit reduziertem platzbedarf

Country Status (3)

Country Link
EP (1) EP4186773B1 (de)
CN (1) CN116161066A (de)
FR (1) FR3129352B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819412C1 (de) 1998-04-30 1999-10-07 Talbot Gmbh & Co Kg Wankstützeinrichtung für den Rahmen des Laufwerks eines Schienenfahrzeugs
WO2014177417A1 (de) 2013-05-02 2014-11-06 Siemens Ag Österreich Radsatzlagerung für den radsatz eines schienenfahrzeugs mit innengelagertem drehgestell
WO2018042326A1 (en) 2016-08-30 2018-03-08 Lucchini Rs S.P.A. Portal-axle of low floor rail vehicles and rail-and-tram vehicles
CN108128321A (zh) 2017-12-21 2018-06-08 大连交通大学 轮毂式独立车轮转向架
EP3851355A1 (de) 2020-01-17 2021-07-21 HEMSCHEIDT Engineering GmbH & Co. KG Portalachse für ein drehgestell eines schienenfahrzeugs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819412C1 (de) 1998-04-30 1999-10-07 Talbot Gmbh & Co Kg Wankstützeinrichtung für den Rahmen des Laufwerks eines Schienenfahrzeugs
WO2014177417A1 (de) 2013-05-02 2014-11-06 Siemens Ag Österreich Radsatzlagerung für den radsatz eines schienenfahrzeugs mit innengelagertem drehgestell
WO2018042326A1 (en) 2016-08-30 2018-03-08 Lucchini Rs S.P.A. Portal-axle of low floor rail vehicles and rail-and-tram vehicles
CN108128321A (zh) 2017-12-21 2018-06-08 大连交通大学 轮毂式独立车轮转向架
EP3851355A1 (de) 2020-01-17 2021-07-21 HEMSCHEIDT Engineering GmbH & Co. KG Portalachse für ein drehgestell eines schienenfahrzeugs

Also Published As

Publication number Publication date
CN116161066A (zh) 2023-05-26
FR3129352A1 (fr) 2023-05-26
EP4186773B1 (de) 2023-12-27
FR3129352B1 (fr) 2023-11-24

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