EP1826092B1 - Radsatz für ein Niederflur-Schienenfahrzeug und Drehgestell und Schienenfahrzeug, die einen solchen Radsatz enthalten - Google Patents

Radsatz für ein Niederflur-Schienenfahrzeug und Drehgestell und Schienenfahrzeug, die einen solchen Radsatz enthalten Download PDF

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Publication number
EP1826092B1
EP1826092B1 EP07290102A EP07290102A EP1826092B1 EP 1826092 B1 EP1826092 B1 EP 1826092B1 EP 07290102 A EP07290102 A EP 07290102A EP 07290102 A EP07290102 A EP 07290102A EP 1826092 B1 EP1826092 B1 EP 1826092B1
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EP
European Patent Office
Prior art keywords
shaft
axle
cross
wheels
piece
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Application number
EP07290102A
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English (en)
French (fr)
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EP1826092A1 (de
Inventor
Alain Rodet
Jean-Christophe Loiseau
Christophe Eche
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 SA
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Alstom Transport SA
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Publication of EP1826092A1 publication Critical patent/EP1826092A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D13/00—Tramway vehicles
    • 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

Definitions

  • the present invention relates to a railway vehicle axle of the type comprising a central shaft, two wheels connected in rotation by the shaft and two bearings, each wheel being rotatably mounted relative to a bearing along the axis of the wheels, a bogie comprising a such axle, and a railway vehicle comprising such a bogie.
  • Such axles are conventionally used for rail vehicles, particularly for urban rail transport, of the tramway type. These conventional axles equip bogies supporting vehicle bodies whose floor is, generally, above the axles, at a height of 520 mm above the upper edge of the rails with standard wheels 590 mm in diameter at the new condition. In urban areas, and therefore without a platform, this floor height represents a difficulty for passenger access, for example, in a tramway.
  • the document WO 0 / 64,721 describes a railway vehicle with, on the one hand, a lowered floor above the axles of a height, above the upper edge of the rails, of 450 mm thanks to wheels of diameter smaller than the standard diameter and, on the other hand, a floor area of lesser height, approximately 355 mm above the rails, connected by ramps to the floor area above the axles, this lower area being an area of easy access for passengers.
  • axles bent Such axles, described for example in the document EP 911 239 , are located under the axis of rotation of the wheels, by making it possible to lower the floor at the level of the axles of the wheels, thanks to a complex arrangement of transmission of the driving torques to the wheels.
  • These axles comprise in fact angular references and / or reducers allowing the implementation of a remote rotary connection shaft parallel to the axis of rotation of the wheels.
  • the object of the invention is therefore to provide a lowered floor vehicle without the disadvantages mentioned above.
  • the subject of the invention is an axle for a railway vehicle of the aforementioned type, characterized in that it furthermore comprises at least one bending stiffening cross member of the axle, this cross member rigidly connecting the two bearings, and that the diameter of the shaft is between 60 and 140 mm.
  • the invention also relates to a bogie comprising a chassis and at least one axle as defined above supporting said bogie.
  • the invention also relates to a rail vehicle comprising a body and at least one bogie as defined above for the support of the body.
  • the bogie 1 of the figure 1 essentially comprises a chassis 5, two pairs of wheels 9 each integrated in an axle 11, and a suspension system 15 interposed between the axles 11 and the chassis 5.
  • the chassis 5 has the general shape of H with two spars 17, parallel to the longitudinal axis X of the truck 1. Each spar 17 has two zones 18 of difference in elevation, the median part of the spar between the two axles 11 being lower than the ends of the spar.
  • the two longitudinal members 17 are connected by a transverse central beam 19 perpendicular to the longitudinal members 17.
  • the chassis 5 is intended to support a body 20 of a vehicle, such as a tramway.
  • the body 20 is, for example, articulated in the center of the beam 19.
  • Each axle 11 comprises a central shaft 21 which extends transversely along the entire width of the axle. It connects the two wheels 9 in rotation and extends along the Y axis of common rotation of the two wheels.
  • Each wheel 9 is rotatably mounted relative to a bearing 22.
  • a crossbar 23 visible on the figure 2 , for example cylindrical and of rectangular section, rigidly connects the two bearings 22 to each other by their lower ends, to the right of the shaft 21.
  • the crossbar 23 is thus parallel to the axis Y of rotation of the wheels 9 and located under the shaft 21. it is slightly spaced from the latter by a distance l advantageously for a tram between 80 and 120 mm, for example of the order of 100 mm.
  • the two bearings 22 each have a bearing surface of the suspension system 15.
  • the wheels 9 have a diameter D advantageously between 530 mm and 620 mm, for example of the order of 590 mm.
  • 590 mm is the diameter standard for tramway wheels, in new condition.
  • the standard 9-wheel diameter can go down to 530 mm with wear.
  • the wheels 9 are placed on rails 24.
  • each shaft 21 is advantageously between 60 mm and 140 mm, for example of the order of 100 mm.
  • the crosspiece 23 has a section at least equal to that of the shaft 21.
  • Bogie control members such as a speed reducer 26 or a motor, for example, are housed in one or more bearings 22.
  • the floor 31 of the body 20 of the vehicle, located just above the axle 11, is spaced from the axle 11 of an interval i.
  • the interval i, corresponding to the deflection of the suspensions 15, is advantageously between 40 and 80 mm, of the order of 60 mm for example.
  • the floor 31 is of a thickness e, advantageously between 30 and 70 mm, for example of the order of 50 mm.
  • the beam 19 connects the longitudinal members 17 passing under the floor 31.
  • the operating principle of the invention is to optimize the vertical space requirement of the axle 11 by reducing it to the maximum in height, in order to free up space to descend as far as possible to the floor 31 of the body 20 of the vehicle.
  • axle 11 The traditional functions of the axle 11 are separated here. Indeed, an axle 11 must generally, firstly secure the wheels 9 and rotate them by transmitting the traction and braking torques, the wheels 9 thus rotating together and parallel, and, secondly, withstand the bending forces due to the mass of the vehicle and the chassis 5, transmitted by the suspension system 15.
  • the truck 1 separates the functions of the axle 11 between, on the one hand, the central shaft 21 which fills the first function of the axle, and secondly, the cross member 23 which performs the second function.
  • the crossbar 23 has in fact sufficient inertia to resist bending due to the forces from the vehicle and the chassis.
  • the crossbar 23 does not rotate, and only the shaft 21 drives the wheels 9 in rotation.
  • the only dimensioning constraint of the central shaft 21 is the driving function of the wheels 9 by the shaft 21, which can therefore be of smaller diameter than if it fulfilled the two functions of the axle 11.
  • the invention allows a lowering of the floor 31 to the height h of 455 mm, taking into account also the thickness of the floor 31.
  • an axle 11 allows a simple transmission system, the first function of the axle being retained, thanks to the central shaft 21.
  • a ramp inclination of less than 10% is advantageously provided for connecting the floor 31 of the area above the bogie to a lower floor zone 39 h ' .
  • This zone 39 of lower height h ' is for example the passenger access zone. This results in a relatively low floor level 39 for the passenger access area, of the order of 355 mm.
  • each axle comprises two cross members, for example in the case (not shown) where the bearings are located outside the wheels.
  • Each crossbar connects the two bearings, the first crossbar being located in front of the wheels and the second behind the wheels, symmetrically with respect to the shaft.
  • each axle 11 is located under the corresponding shaft 21, and spaced therefrom.
  • the shaft 21 is located outside the crossbar 23.
  • the crossbar 23 is nevertheless located at a height lower than that of the conventional axle for the same application with respect to the tops of the rails 24. More specifically, the crossbar 23 is made with a neutral surface of the crossbar located below the axis of the tree.
  • the neutral bending surface under vertical load of the beam is called the location of the points of zero longitudinal stress in flexion under a vertical load due to the chassis 5 and to a rail vehicle resting on the chassis
  • the crossbar 23 has for example more material in the lower part, between the shaft 21 and the top of the rail, in the upper part, above the shaft 21.
  • the crossbar 23 is offset vertically relative to the shaft 21 so that the clearance Jsup between the shaft 21 and the upper inner wall of the crossmember 23 is less than the clearance Jinf between the shaft 21 and the lower inner wall of the crossbar 23.
  • the crosspiece 23 defines with the bearings 22 a sealed volume around the shaft 21, between the bearings 22.
  • the distance i between the shaft 21 and the floor 31 must be sufficient to accommodate the upper wall of the cross member 23 (which is for example of the order of 10 mm), and arrange a sufficient Jsup clearance (for example of the order of 10 mm).
  • the height of the floor 31 is greater than that which can be obtained with the embodiment of the figure 2 (for example greater than 20 mm).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Rolling Contact Bearings (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (10)

  1. Radachse (11) für Schienenfahrzeug (33) des Typs, der eine Zentralwelle (21), zwei mit der Zentralwelle (21) drehbar verbundene Räder (9) und zwei Lager (22) umfasst, wobei jedes Rad (9) in Bezug auf ein Lager (22) um die Drehachse (Y) der Räder (9) drehbar montiert ist, wobei die Zentralwelle (21) längs der Drehachse (Y) der Räder verläuft, dadurch gekennzeichnet, dass sie außerdem wenigstens eine Querstrebe (23) zur Biegeversteifung der Radachse (11) umfasst, wobei diese Querstrebe (23) die zwei Lager (22) starr verbindet, und dass der Durchmesser (d) der Welle (21) im Bereich von 60 bis 140 mm liegt.
  2. Radachse (11) nach Anspruch 1, dadurch gekennzeichnet, dass sich die oder jede Querstrebe (23) auf einer Höhe unterhalb der Höhe der Welle (21) in Bezug auf die Scheitelpunkte der Schienen (24) befindet.
  3. Radachse (11) nach Anspruch 1, dadurch gekennzeichnet, dass die Welle (21) innerhalb der Querstrebe (23) verläuft.
  4. Radachse (11) nach Anspruch 3, dadurch gekennzeichnet, dass die Querstrebe (23) in Bezug auf die Zentralwelle (21) vertikal versetzt ist, so dass der Zwischenraum (Jsup) zwischen der Welle (21) und der oberen Innenwand der Querstrebe (23) kleiner ist als der Zwischenraum (Jinf) zwischen der Welle (21) und der unteren Innenwand der Querstrebe (23).
  5. Radachse (11) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Querstrebe (23) einen Querschnitt aufweist, der wenigstens gleich jenem der Welle (21) ist.
  6. Radachse (11) nach Anspruch 3, dadurch gekennzeichnet, dass die Querstrebe (23) mit den Lagern (22) ein dichtes Volumen um die Welle (21) definiert.
  7. Drehgestell (1) für Schienenfahrzeug (33), dadurch gekennzeichnet, dass es einen Rahmen (5) und wenigstens eine Radachse (11) nach einem der vorhergehenden Ansprüche, die das Drehgestell trägt, umfasst.
  8. Schienenfahrzeug (33), dadurch gekennzeichnet, dass es einen Rahmen (20) und wenigstens ein Drehgestell (1) nach Anspruch 7, um den Rahmen zu tragen, umfasst.
  9. Schienenfahrzeug (33) nach Anspruch 8, dadurch gekennzeichnet, dass die Räder (9) einen Durchmesser (D) haben, der im Bereich von 530 bis 660 mm liegt, und das Fahrzeug (33) einen ersten Boden (31) mit einer Höhe (h) im Bereich von 385 bis 510 mm oberhalb der Oberkante der Schienen (24) im Bereich des Drehgestells umfasst.
  10. Schienenfahrzeug (33) nach Anspruch 9, dadurch gekennzeichnet, dass es einen zweiten Boden (39) mit einer Höhe (h') im Bereich von 335 bis 375 mm umfasst, wobei die zwei Böden (31, 39) durch eine Rampe (35), die eine Neigung im Bereich von 5 bis 10 % aufweist, verbunden sind.
EP07290102A 2006-01-30 2007-01-25 Radsatz für ein Niederflur-Schienenfahrzeug und Drehgestell und Schienenfahrzeug, die einen solchen Radsatz enthalten Active EP1826092B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0600834A FR2896751B1 (fr) 2006-01-30 2006-01-30 Essieu pour vehicule ferroviaire a plancher bas, bogie et vehicule ferroviaire correspondant.

Publications (2)

Publication Number Publication Date
EP1826092A1 EP1826092A1 (de) 2007-08-29
EP1826092B1 true EP1826092B1 (de) 2013-03-13

Family

ID=37307053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07290102A Active EP1826092B1 (de) 2006-01-30 2007-01-25 Radsatz für ein Niederflur-Schienenfahrzeug und Drehgestell und Schienenfahrzeug, die einen solchen Radsatz enthalten

Country Status (7)

Country Link
US (1) US20070186803A1 (de)
EP (1) EP1826092B1 (de)
JP (1) JP2007204039A (de)
CN (1) CN101011973B (de)
AU (1) AU2007200387A1 (de)
ES (1) ES2413061T3 (de)
FR (1) FR2896751B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316497A1 (de) * 2003-04-09 2005-01-05 Bombardier Transportation Gmbh Fahrwerk für ein Schienenfahrzeug mit verbesserter Querfederung
FR2928601B1 (fr) * 2008-03-11 2011-09-09 Alstom Transport Sa Voiture de vehicule ferroviaire facilitant l'acces aux voyageurs a mobilite reduite
JP5322775B2 (ja) * 2009-05-26 2013-10-23 川崎重工業株式会社 低床式鉄道車両用台車、それの固定車軸の圧入方法および取り外し方法
JP5388695B2 (ja) * 2009-05-26 2014-01-15 川崎重工業株式会社 低床式鉄道車両用台車および低床式鉄道車両
US8794160B2 (en) 2009-05-26 2014-08-05 Kawasaki Jukogyo Kabushiki Kaisha Low-floor railcar bogie and low-floor railcar including the same
JP5263535B2 (ja) * 2009-06-25 2013-08-14 近畿車輌株式会社 低床車両の連結器設置構造
KR101155337B1 (ko) * 2010-09-10 2012-06-19 한국철도기술연구원 저상 철도차량용 차륜 클러치 장치
JP5708469B2 (ja) * 2011-12-19 2015-04-30 新日鐵住金株式会社 鉄道車両用操舵台車
CN102963374A (zh) * 2012-04-24 2013-03-13 南车南京浦镇车辆有限公司 一种低地板城轨车辆
WO2014203971A1 (ja) * 2013-06-19 2014-12-24 新日鐵住金株式会社 鉄道車両用台車
FR3018490B1 (fr) 2014-03-12 2018-01-05 Alstom Transport Technologies Vehicule ferroviaire, notamment de type tramway, a gabarit reduit
IT201600088005A1 (it) * 2016-08-30 2018-03-02 Lucchini Rs Spa Ponte-assale di veicoli ferroviari e ferrotranviari a pianale ribassato

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US1812127A (en) * 1930-02-12 1931-06-30 Abram C Wisner Wheel unit
US2090327A (en) * 1935-11-06 1937-08-17 Haig Paul Divided car axle
US2440351A (en) * 1944-10-25 1948-04-27 Frank A Showacre Differential railroad car wheel axle
US3321232A (en) * 1965-07-15 1967-05-23 Seymour F Johnson Entpr Vehicle axle-wheel assembly
CH514455A (de) * 1970-06-17 1971-10-31 Schweizerische Lokomotiv Schienenfahrzeug
US4480554A (en) * 1979-07-23 1984-11-06 Brodeur Rene H Articulated rail car for vehicular trailers
FR2573715B1 (fr) * 1984-11-29 1988-05-20 Schneider Jeumont Rail Bogie porteur de vehicule ferroviaire
DE3808593A1 (de) * 1988-03-15 1989-09-28 Gutehoffnungshuette Man Radsatzfuehrung fuer drehgestelle von schienenfahrzeugen, insbesondere fahrzeuge des nahverkehrs
FR2637861B1 (fr) * 1988-10-18 1991-04-26 Alsthom Gec Bogie moteur pour vehicule ferroviaire a plancher bas sur toute sa longueur
DE4037672A1 (de) * 1990-11-27 1992-06-04 Man Ghh Schienenverkehr Schienenfahrzeug
DE4320667A1 (de) * 1993-06-22 1995-01-05 Man Ghh Schienenverkehr Niederflur-Schienenfahrzeug
DE19620962C2 (de) * 1996-05-24 2001-05-17 Daimler Chrysler Ag Drehgestell
CZ286660B6 (cs) * 1998-09-22 2000-05-17 Čkd Dopravní Systémy, A. S. Dvouosý trakční podvozek nízkopodlažního kolejového vozidla s podélně uloženými nezávislými pohonnými jednotkami
EP1171336B1 (de) 1999-04-22 2004-09-22 Bombardier Transportation Austria GmbH & Co. KG Schienenfahrzeug
FR2826328B1 (fr) * 2001-06-26 2003-08-29 Alstom Bogie moteur pour vehicule ferroviaire a plancher bas integral
CN2515076Y (zh) * 2001-12-28 2002-10-09 湘潭电机股份有限公司 低地板轻轨车拖动转向架

Also Published As

Publication number Publication date
EP1826092A1 (de) 2007-08-29
FR2896751A1 (fr) 2007-08-03
FR2896751B1 (fr) 2008-04-18
AU2007200387A1 (en) 2007-08-16
ES2413061T3 (es) 2013-07-15
US20070186803A1 (en) 2007-08-16
CN101011973A (zh) 2007-08-08
JP2007204039A (ja) 2007-08-16
CN101011973B (zh) 2011-09-07

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