EP4001048B1 - Bogie de véhicule ferroviaire, véhicule ferroviaire et procédé d'usinage associés - Google Patents

Bogie de véhicule ferroviaire, véhicule ferroviaire et procédé d'usinage associés Download PDF

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Publication number
EP4001048B1
EP4001048B1 EP21207473.6A EP21207473A EP4001048B1 EP 4001048 B1 EP4001048 B1 EP 4001048B1 EP 21207473 A EP21207473 A EP 21207473A EP 4001048 B1 EP4001048 B1 EP 4001048B1
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EP
European Patent Office
Prior art keywords
bogie
hub
axle
shaft
machining
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
EP21207473.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4001048A1 (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 Holdings SA
Original Assignee
Alstom Transport Technologies SAS
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Filing date
Publication date
Application filed by Alstom Transport Technologies SAS filed Critical Alstom Transport Technologies SAS
Publication of EP4001048A1 publication Critical patent/EP4001048A1/fr
Application granted granted Critical
Publication of EP4001048B1 publication Critical patent/EP4001048B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie 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
    • B61F3/00—Types of 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
    • B61F15/00—Axle-boxes
    • 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
    • B61F3/16—Types of bogies with a separate axle for each wheel
    • 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
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
    • B61F5/302—Leaf springs
    • 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
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/32—Guides, e.g. plates, for axle-boxes
    • B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles
    • 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.
  • the present invention also relates to a railway vehicle comprising such a railway bogie.
  • the present invention also relates to a method of machining such a bogie.
  • a bogie comprises a frame and axles, each axle comprising two coaxial wheels mounted to rotate on the frame, see for example the document EP 2 258 596 A1 .
  • the bogie presents a risk of premature wear due to various misalignments of the parts of the bogie under the load of the car.
  • One of the aims of the invention is therefore to propose a bogie presenting less risk of premature wear and thus alleviating the maintenance requirements on the bogie.
  • the subject of the invention is a railway vehicle bogie capable of passing from a rest configuration to an active configuration in which the bogie supports at least one vertical load, comprising a frame; at least one pair of wheels; for each pair of wheels, a shaft connecting the two wheels of said pair of wheels, each shaft extending along an axle axis; for each wheel, a wheel hub fixed to the wheel and to the associated shaft, said shaft being inserted into the hub, each hub extending along a hub axis; for each wheel, an axle box fixed to the frame and receiving the associated hub, each hub being rotatable relative to the associated axle box; for each hub, the hub axis forms a non-zero camber angle with the axle axis of the associated shaft when the bogie is in the rest configuration.
  • the invention also relates to a railway vehicle comprising at least one bogie as defined above.
  • the machining method comprises one or more of the following optional characteristics: the prestressing of the transverse beam is greater than an equivalent load of 5000 kg, in particular greater than 8000 kg, the bogie being initially in the rest configuration, the method comprising at least one step of machining each axle box so as to receive the associated hub, the machining being carried out so that the hub axle of said hub forms the non-zero camber angle.
  • the figure 1 represents a railway vehicle 10 running on rails 12 extending longitudinally.
  • the railway vehicle 10 comprises at least one car 14 and at least one bogie 16.
  • Each car 14 has an interior volume 18 configured to receive passengers and/or goods to be transported.
  • the bogie 16 is arranged for example at one end of the car 14 and supports two adjacent cars 14 when the railway vehicle 10 comprises several cars 14. According to a conventional embodiment, the or each car 14 is supported by two bogies 16 at each from its ends.
  • the bogie 16 is capable of moving from a rest configuration to an active configuration.
  • the bogie 16 In the rest configuration, the bogie 16 is away from the cars 14 and therefore does not support any vertical load.
  • the bogie 16 is in the rest configuration before the assembly of the railway vehicle 10 during its manufacture.
  • the bogie 16 supports a vertical load due to the at least one car 14 supported and to the passengers and/or goods transported by each car 14 supported by the bogie 16.
  • the bogie 16 is in the active configuration in particular during the operating phases of the railway vehicle 10 or if a load is applied to the bogie 16 as will be explained later.
  • the bogie 16 comprises a frame 20, at least one pair of wheels 22, at least one shaft 24, at least two wheel hubs 26 and at least two axle boxes 28.
  • the chassis 20 comprises at least one transverse beam 30 capable of supporting the load of the car 14.
  • Each transverse beam 30 connects two axle boxes 28 to form an axle
  • the frame 20 comprises at least two transverse beams 30 substantially parallel to each other.
  • Each pair of wheels 22 is rotatably mounted on the bogie 16 by one of the axles.
  • the wheels 22 are configured to run on the rails 12 and thus allow the movement of the railway vehicle 10.
  • Each shaft 24 connects the two wheels of one of the wheel pairs 22.
  • Each shaft 24 extends along a substantially transverse axle axis A-A'.
  • the bogie 16 comprises two shafts 24 each extending transversely, parallel to the transverse beams 30.
  • the bogie 16 includes a wheel hub 26 associated with each wheel 22.
  • Each wheel hub 26 is attached to the associated wheel 22 and shaft 24.
  • the associated shaft 24 is inserted into the wheel hub 26.
  • each shaft 24 is connected to the associated hub 26 by a splined connection 32.
  • each shaft 24 comprises at least one spline cooperating with at least one groove in the hub 26 allowing good coupling between the two parts and efficient transmission. of the torque from the motor of the railway vehicle to the wheels 22.
  • the bogie 16 includes an axle box 28 associated with each wheel 22.
  • Each axle box 28 is connected to the frame 20, by a primary suspension for example, not shown, and receives an associated hub 26.
  • Each axle box 28 extends along an axle box axis B-B'.
  • Each hub 26 is rotatably mounted inside the associated axle box 28, for example by means of bearings 34.
  • each wheel 22 is rotatable relative to the frame 20.
  • Each hub 26 extends along a hub axis B-B'.
  • Each hub 26 is hollow and forms a solid of revolution around the hub axis B-B' into which a section of the shaft 24 fits.
  • Each hub axle B-B' forms with the axle axle A-A' a camber angle a.
  • the bogie 16 is configured in such a way that when the bogie 16 is in the rest configuration (i.e. not loaded), the camber angle ⁇ is not zero. This is contrary to conventional bogie assembly methods.
  • the camber angle ⁇ when the bogie 16 is at rest is predetermined at least as a function of the stiffness of the axle, mainly of the transverse beam 30, and of the vertical load supported by the bogie 16 in the active configuration.
  • camber angle ⁇ is determined by means of a predicted average load.
  • axle axis A-A' and the hub axis B-B' are not aligned in the rest configuration.
  • Each beam 30 extends substantially straight.
  • the bogie 16 machining process includes an initial step of prestressing at least one of the beams 30 by applying a vertical prestressing load to the frame 20.
  • the prestressing load is for example applied by a machine exerting a vertical force towards the floor of the factory at the level of the center of the beam 30.
  • the prestressing load of the beam 30 is greater than an equivalent load of 5000 kg, in particular greater than an equivalent load of 8000 kg.
  • the beam 30 deforms and then has a concave shape, as shown in the figure 2 .
  • axle boxes The two axes of the axle boxes are then not aligned and form between them a non-zero angle.
  • the method includes a step of machining each axle box 28 so as to receive the associated hub 26, the prestressing load still being applied.
  • the machining of the axle box 28 is carried out so that the hub axis B-B' of said hub 26 is substantially parallel to the axle axis A-A' of the associated axle 24.
  • each axle box 28 is machined in such a way that the two hub axles B-B' are substantially coaxial.
  • the hubs 26 and the axle 24 are inserted into the axle boxes 28.
  • the two hubs 26 and the axle 24 are thus substantially coaxial.
  • the bogie 16 is then in the rest configuration.
  • the two hub axes B-B' then form a non-zero angle between them.
  • camber angle ⁇ between each hub axis B-B' and the axle axis A-A' is non-zero.
  • the railway vehicle 10 is assembled by placing in particular at least one car 14 resting on the bogie 16.
  • the car 14 when the car 14 includes passengers and/or goods, the car 14 exerts a vertical load on the bogie 16 similar to the prestressing load on the transverse beam 30.
  • camber angle ⁇ is then reduced, and for example approximately zero when the operating load is substantially equal to the prestressing load applied during manufacture.
  • the hubs 26 and the shaft 24 are thus aligned and thus premature wear of the bogie 16 due to friction is avoided.
  • the bogie 16 is initially in the rest configuration.
  • the machining process then comprises a step of machining each axle box 28 so as to receive the associated hub 26.
  • the machining is carried out so that the hub axis BB' of said hub 26 forms a non-zero camber angle ⁇ with the axle axis A-A', as shown in the picture 3 .
  • the two hub axes BB' are not parallel and form a non-zero angle between them.
  • the insertion of the shaft 24 takes place in each associated hub 26 despite the misalignment, and is possible for example due to a play present in the hub 26.
  • the railway vehicle 10 is assembled by placing in particular at least one car 14 resting on the bogie 16.
  • the car 14 when the car 14 includes passengers and/or goods, the car 14 exerts a vertical load on the bogie 16 which deforms the beam 30 and tends to realign the two hub axes B -B'.
  • the camber angle ⁇ in operation is small, and in particular approximately zero.
  • the hubs 26 and the axle 24 are thus aligned and thus premature wear of the bogie 16 due to friction is avoided.
  • the bogie 16 allows a lower risk of premature wear due to the alignment of the hubs 26 and the axle 24 in the active configuration of the bogie 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Vehicle Body Suspensions (AREA)
  • Escalators And Moving Walkways (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Rolling Contact Bearings (AREA)
  • Turning (AREA)
EP21207473.6A 2020-11-13 2021-11-10 Bogie de véhicule ferroviaire, véhicule ferroviaire et procédé d'usinage associés Active EP4001048B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2011650A FR3116255B1 (fr) 2020-11-13 2020-11-13 Bogie de véhicule ferroviaire, véhicule ferroviaire et procédé d’usinage associés

Publications (2)

Publication Number Publication Date
EP4001048A1 EP4001048A1 (fr) 2022-05-25
EP4001048B1 true EP4001048B1 (fr) 2022-11-16

Family

ID=74125485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21207473.6A Active EP4001048B1 (fr) 2020-11-13 2021-11-10 Bogie de véhicule ferroviaire, véhicule ferroviaire et procédé d'usinage associés

Country Status (5)

Country Link
US (1) US11993296B2 (pl)
EP (1) EP4001048B1 (pl)
ES (1) ES2936662T3 (pl)
FR (1) FR3116255B1 (pl)
PL (1) PL4001048T3 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4530149A1 (de) * 2023-09-29 2025-04-02 Siemens Mobility GmbH Fahrwerk, wagenkasten mit fahrwerk sowie schienenfahrzeug mit wagenkasten

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681541B1 (en) * 1993-02-03 2001-10-17 BISHOP, Arthur Ernest Self-steering railway bogie
US20070169663A1 (en) * 2006-01-20 2007-07-26 Asf-Keystone, Inc. Sideframe pedestal
FR2946307B1 (fr) * 2009-06-05 2011-08-05 Alstom Transport Sa Bogie moteur de vehicule ferroviaire comprenant un moteur semi-suspendu
JP5947590B2 (ja) * 2011-07-14 2016-07-06 川崎重工業株式会社 鉄道車両用台車
JP6185727B2 (ja) * 2013-03-06 2017-08-23 川崎重工業株式会社 平行カルダン駆動方式の操舵台車
JP6275403B2 (ja) * 2013-07-09 2018-02-07 国立大学法人 東京大学 鉄道車両用台車、鉄道車両及び鉄道システム
FR3014399B1 (fr) * 2013-12-11 2017-05-26 Alstom Transport Sa Bogie moteur de vehicule ferroviaire dans lequel le moteur est sensiblement coaxial a l'essieu
FR3049252B1 (fr) * 2016-03-25 2018-04-20 Alstom Transport Technologies Bogie comprenant une liaison rigide entre les boites d'essieu, et vehicule ferroviaire associe
FR3049251B1 (fr) * 2016-03-25 2018-07-27 Alstom Transport Technologies Bogie a moteur exterieur et vehicule ferroviaire associe
FR3088042B1 (fr) * 2018-11-06 2020-11-27 Alstom Transp Tech Bogie pour vehicule ferroviaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4530149A1 (de) * 2023-09-29 2025-04-02 Siemens Mobility GmbH Fahrwerk, wagenkasten mit fahrwerk sowie schienenfahrzeug mit wagenkasten

Also Published As

Publication number Publication date
US20220153321A1 (en) 2022-05-19
ES2936662T3 (es) 2023-03-21
EP4001048A1 (fr) 2022-05-25
FR3116255B1 (fr) 2022-11-18
US11993296B2 (en) 2024-05-28
PL4001048T3 (pl) 2023-04-11
FR3116255A1 (fr) 2022-05-20

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