EP0134201B1 - Zweiachsiges niedriges Drehgestell - Google Patents

Zweiachsiges niedriges Drehgestell Download PDF

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Publication number
EP0134201B1
EP0134201B1 EP84830183A EP84830183A EP0134201B1 EP 0134201 B1 EP0134201 B1 EP 0134201B1 EP 84830183 A EP84830183 A EP 84830183A EP 84830183 A EP84830183 A EP 84830183A EP 0134201 B1 EP0134201 B1 EP 0134201B1
Authority
EP
European Patent Office
Prior art keywords
load
bogie
bearing
bearing base
side members
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.)
Expired - Lifetime
Application number
EP84830183A
Other languages
English (en)
French (fr)
Other versions
EP0134201A3 (en
EP0134201A2 (de
Inventor
Oreste Santanera
Augusto Tabbia
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.)
Fiat Ferroviaria Savigliano SpA
Original Assignee
Fiat Ferroviaria Savigliano SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fiat Ferroviaria Savigliano SpA filed Critical Fiat Ferroviaria Savigliano SpA
Priority to AT84830183T priority Critical patent/ATE54628T1/de
Publication of EP0134201A2 publication Critical patent/EP0134201A2/de
Publication of EP0134201A3 publication Critical patent/EP0134201A3/en
Application granted granted Critical
Publication of EP0134201B1 publication Critical patent/EP0134201B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/02—Couplings for special purposes not otherwise provided for for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of 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
    • B61F3/00—Types of bogies
    • B61F3/12—Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains
    • B61F3/125—Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains with more than one axle or wheel set
    • 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
    • B61F5/04—Bolster supports or mountings
    • B61F5/10—Bolster supports or mountings incorporating fluid 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
    • B61F5/02—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
    • 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 in general to railway or tramway vehicles, with special reference to a two-axle load-bearing bogie, designed for use in such vehicles, of the type defined in the pre-characterising part of Claim 1.
  • a bogie of this type is known from US-A-3,861,706.
  • the present invention aims to provide a load-bearing bogie of relatively simple and economic manufacture, and of such reduced height that the carriage of the vehicle to which it is fitted may be designed with a low step for ease of passenger access.
  • the present invention provides a two-axle load-bearing bogie for railway or tramway vehicles characterised by the features set forth in the characterising portion of Claim 1.
  • wheel of small diameter means a wheel the diameter of which is appreciably less than, and approximately equal to half (35 cm), that of traditional bogie wheels.
  • the structure of the bogie according to the invention enables the primary suspension to be eliminated in practice, thus drastically reducing the height of the bogie.
  • This characteristic together with the wheel size, enables the provision of a railway or tramway vehicle utilizing this bogie, the step level of which is lowered to a height of approximately 45 cm from the level of the rail, even in the area directly above the bogie.
  • the invention provides for a railway or tramway vehicle having a carriage formed by two coach bodies with underlying ball joint articulation, such as known from DE-C-712,104, incorporating a load-bearing bogie of the above-defined type.
  • one of the two coach bodies has an end section resting rotatably on the load-bearing base of the bogie so as to define a housing having a spherical surface within which is engaged a complementary spherical surface of an articulating member, carried by an end connecting section of the other coach body.
  • reference numeral 10 indicates generally a load-bearing two-axle bogie for tramway vehicles in particular.
  • the bogie 10 comprises a frame 12 formed by two box-section longitudinal side members 14,16 of steel plate, the ends of which 14a, 16a and 14b, 16b are interconnected by a pair of transverse axles 18, 20 respectively, each bearing flanged wheels 21.
  • the wheels 21 have a diameter appreciably less than that of traditional bogie wheels currently employed in tramway vehicles. According to the invention, this diameter may be preferably 35 cm.
  • the axles 18, 20 are rotataboy mounted relative to the ends 14a, 14b and 16a, 16b of the two longitudinal side members 14 and 16 by means of resilient bushes 22 acting as ball joints to enable limited mutual rotation of the axles 18, 20 around the longitudinal axis A of the bogie 10.
  • the resilient mounting of the axles 18 and 20 also ensures a considerable degree of comfort and allows the vehicle using this bogie to adapt easily to track irregularities.
  • the wheels 21 may be fixed to the respective axles 18, 20 for rotation therewith or, as in the example illustrated, they may be mounted to rotate freely on the axles. In the latter case the two wheels 21 of each axle 18, 20 are free to rotate independently of one another, thus eliminating any undesirable sliding between the wheels and the rails when travelling around a curve. When curves in a tramway are taken with wheels of such small diameter, such sliding could cause premature wear of the flanges of the wheels.
  • a substantially circular central platform-cross member Fixed to the central area of the inside of the longitudinal side member 14 is a substantially circular central platform-cross member disposed horizontally within the frame 12.
  • the platform-cross member 24 is rigidly fixed at one end to the longitudinal side member 14, whilst the connection of its opposite end to the other side member 15 is effected by means of a resilient articulated joint 26, seen in detail in Figure 4.
  • This joint 26 comprises a transverse pin 28 carried by a vertical structure 30 fixed to the platform 24 and inserted in a tubular sleeve 32 projecting from the longitudinal side member 16 with an interposed elastic bush 34.
  • the platform 24 has a peripheral box-type reinforcement section 36 which defines a central supporting part 38 to which is anchored the base 40 of a pneumatic spring 42 having a flexible casing and forming the secondary vertical and transverse suspension of the bogie 10.
  • a load-bearing base 46 Fixed to the top 44 of the pneumatic spring 42 is a load-bearing base 46 having two lateral lugs 48 which bear respective transverse pivot pins 50 for the articulation of two longitudinal arms 52 the opposite ends of which are articulated to respective transverse pins 54 borne by supports 56 projecting from the front and rear ends respectively of the platform 24.
  • the free ends 48a of the lugs 48 face two sprung stop buffers 58 supported from the two opposite sides of the platform 24, one by the support 30 carrying the pin 28, and the other by a similar vertical support 30, serving to limit transverse displacements of the load-bearing base 46 supported by the pneumatic spring 42.
  • Reference numeral 60 indicates a resilient buffer member fixed to the part 38 of the platform 24 in correspondence with the central zone of the pneumatic spring 42 and arranged to cooperate with the corresponding zone of the load-bearing base 46.
  • the buffer member 60 serves to support the body in the event of a lack of air in the pneumatic spring 42.
  • the bogie 10 incorporates electromagnetic brake shoes 62, guided between guide elements 64 fixed to the external sides of the two longitudinal side members 14, 16 in the regions between the wheels 21, and operated in known manner by means of actuating levers 66.
  • the load-bearing base 46 supports the body of the vehicle to which the bogie 10 is fitted.
  • the bogie according to the invention may be fitted with particular advantage in tramway vehicles. Its configuration provides an efficient solution to the problem of lowering the step level of the vehicle carriage in order to facilitate passenger access to the interior of the carriage.
  • the vertical dimension of the bogie according to the invention is, in fact, very much reduced relative to that of conventional load-bearing bogies, due on the one hand to the absence of a true primary suspension and the conformation of the secondary suspension formed by the central pneumatic spring 42, and on the other hand to the reduced diameter of the wheels 21. This in practice enables a lower carriage floor to be provided, even in the regions of the load-bearing bogies according to the invention.
  • the drawings show a preferred embodiment of the bogie 10 for tramway vehicle, comprising two coach bodies, shown diagrammatically as 70, 72, articulated together on their undersides by means of ball joint indicated generally 74 and disposed in correspondence with the bogie 10, resting on the load-bearing base 46.
  • the ball joint 74 is formed by a vertical axis cylindrical housing 76, fixed to the end of the coach body 70 and defining a seat 78 with a spherical surface, into which is inserted a head 80 with a complementary spherical surface, the head 80 being carried by a pin 82 fixed to the corresponding end of the other coach body 72.
  • the end wall 84 of the housing 76 rests rotatably on a guide surface 86 of the load-bearing base 46, whilst the side wall of the housing 76 has an external axially extending annular element 88 facing a corresponding annular projection 90 projecting from the load-bearing base 46 for the transmission of longitudinal thrust between the bogie 10 and the joint 74.
  • This configuration provides for very a small distance between the floor levels in the two coach bodies 70 and 72 and the level of the rail, thus ensuring better comfort and ease of passenger access to the carriage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)
  • Rolling Contact Bearings (AREA)

Claims (12)

1. Zweiachsiges, tragendes Drehgestell für Eisenbahn- oder Straßenbahnfahrzeuge, wobei das Drehgestell eine Sekundäraufhängung, die von einer einzigen mittleren Vertikal- und Queraufhängfeder (42) gebildet wird, die an ihrem oberen Ende eine tragende Basis (46) für die Aufnahme des Körpers (70, 72) eines Eisenbahn-oder Straßenbahnfahrzeugs trägt,
einen Rahmen (12), der von einem Paar von Längsseitengliedern (14, 16) sowie einem Paar von Querachsen (18, 20) gebildet wird, die mit gegenüberliegenden Enden (14a, 16a; 14b, 16b) der beiden Seitenglieder (14,16) verbunden sind, wobei jede Achse (18, 20) ein entsprechendes Paar von Rädern (21) trägt,
sowie eine Mittelplattform (24) enthält, die innerhalb des Rahmens (12) von den Mittelteilen der beiden Seitenglieder (14, 16) getragen wird und auf der die mittlere Aufhängfeder (42) ruht, wobei das Drehgestell gekennzeichnet ist durch:
ein Paar von Längsarmen (52), die die gegenüberliegenden Seiten (48) der tragenden Basis (46) drehbar mit dem Vorder- bzw. Hinterende der Plattform (24) verbinden, und
einen seitlichen Anschlag (48a, 58) um die Querauslenkungen der tragenden Basis (46) relativ zum Rahmen (12) zu begrenzen,
wobei die Achsen (18,20) an den gegenüberliegenden Enden (14a, 16a; 14b, 16b) der beiden Seitenglieder in entsprechenden elastischen Buchsen gelenkig gelagert sind, die als Kugelgelenkselemente (22) wirken, die zwischen den Achsen (18,20) und den entsprechenden Lagerenden (14a, 14b; 16a, 16b) der Längsseitenglieder (14, 16) liegen, und
wobei die Räder einen Durchmesser besitzen, der wesentliche kleiner und vorzugsweise im wesentlichen halb so groß wie der Durchmesser von herkömmlichen Drehgestellrädern ist.
2. Drehgestell gemäß Anspruch 1, dadurch gekennzeichnet, daß die Mittelfeder eine Druckluftfeder mit einem flexiblen Gehäuse (42) ist.
3. Drehgestell gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein elastisches Pufferglied (60) mit der Basis (40) der Druckluftfeder (42) vereinigt und an der Plattform (24) befestigt ist, um mit der tragenden Basis (46) zusammenzuwirken.
4. Drehgestell gemäß Anspruch 1, dadurch gekennzeichnet, daß die seitlichen Anschläge zwei seitliche Ansätze (48), die quer von der tragenden Basis (46) vorspringen, sowie ein Paar von elastischen Anschlagpuffern (58) besitzen, die auf entgegengesetzten Seiten (30) der Plattform (24) sitzen und den seitlichen Ansätzen (48) gegenüberliegen.
5. Drehgestell gemäß Anspruch 4, dadurch gekennzeichnet, daß die beiden seitlichen Ansätze (48) der tragenden Basis (46) entsprechende Querdrehzapfen (50) für die entsprechenden Enden der beiden Längsarme (52) tragen.
6. Drehgestell gemäß Anspruch 1, dadurch gekennzeichnet, daß die Mittelplattform (24) an einer Seite von einem der Längsseitenglieder (14) starr befestigt ist, während sie auf der gegenüberliegenden Seite eine elastische Gelenksverbindung (26) mit dem anderen Längsseitenglied (16) besitzt.
7. Drehgestell gemäß Anspruch 1, dadurch gekennzeichnet, daß es weiters eine elektromagnetische Bremsschuheinrichtung (62) besitzt, die neben und parallel zu den Außenseiten der beiden Längsseitenglieder (14, 16) liegt.
8. Drehgestell gemäß Anspruch 1, dadurch gekennzeichnet, daß die Räder (21) einen Durchmesser von 35 cm besitzen.
9. Eisenbahn- oder Straßenbahnfahrzeug, das zumindest ein tragendes Drehgestell gemäß jedem oder mehreren der bisherigen Ansprüche besitzt.
10. Eisenbahn- oder Straßenbahnfahrzeug, das von zwei Wagenkörpern (70,72) gebildet wird, die gelenkig miteinander über ein Kugelgelenk (74) verbunden sind, das unterhalb der Gelenksverbindung (74) zwischen den beiden Wagenkörpern (70, 72) sitzt, dadurch gekennzeichnet, daß das Fahrzeug ein tragendes Drehgestell (8) gemäß jedem oder mehreren der Ansprüche 1 bis 8 enthält.
11. Fahrzeug gemäß Anspruch 10, wobei einer der beiden Wagenkörper (70) einen Endtragteil (76) besitzt, der drehbar auf der tragenden Basis (47) des Drehgestells (10) ruht und einen Sitz (78) mit einer Kugelfläche bildet, in die ein Gelenksglied (80) eingreift, das eine komplementäre Kugelfläche besitzt, die auf einem Endverbindungsteil (82) des anderen Wagenkörpers (72) sitzt.
12. Fahrzeug gemäß Anspruch 11, dadurch gekennzeichnet, daß der Endtragteil (76) als zylindrisches Gehäuse ausgebildet ist, das eine Endwand (84), die verschiebbar auf einem Führungsteil (86) der tragenden Basis (46) ruht, sowie eine Seitenwand besitzt, die ein axial verlaufendes Ringelement (88) enthält, das einem komplementären Ringvorsprung (90) zugeordnet ist, der von der tragenden Basis (46) vorspringt, um einen Längsdruck zwischen dem Drehgestell (10) und den beiden Wagenkörpern (70, 72) zu übertragen.
EP84830183A 1983-07-29 1984-06-20 Zweiachsiges niedriges Drehgestell Expired - Lifetime EP0134201B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84830183T ATE54628T1 (de) 1983-07-29 1984-06-20 Zweiachsiges niedriges drehgestell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6782883 1983-07-29
IT67828/83A IT1193139B (it) 1983-07-29 1983-07-29 Carrello portante a due assi per veicoli ferro tramviari e veicolo ferro tramviario utilizzante tale carrello

Publications (3)

Publication Number Publication Date
EP0134201A2 EP0134201A2 (de) 1985-03-13
EP0134201A3 EP0134201A3 (en) 1987-04-15
EP0134201B1 true EP0134201B1 (de) 1990-07-18

Family

ID=11305596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830183A Expired - Lifetime EP0134201B1 (de) 1983-07-29 1984-06-20 Zweiachsiges niedriges Drehgestell

Country Status (4)

Country Link
EP (1) EP0134201B1 (de)
AT (1) ATE54628T1 (de)
DE (1) DE3482733D1 (de)
IT (1) IT1193139B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702900A1 (de) * 1986-09-16 1988-03-24 Habegger Ag Von Roll Schienenfahrzeug, insbesondere einschienenbahn
IT1216106B (it) * 1988-03-16 1990-02-22 Sacma Spa Carrello per carrozze ferroviarie passeggeri con piano di calpestio a livello del marciapiede perl'intera carrozza.
HU215002B (hu) * 1992-03-04 1998-08-28 Sgp Verkehrstechnik Gmbh. Sínjármű
AU2580995A (en) * 1994-06-10 1996-01-05 Osrodek Badawczo-Rozwojowy Set for bimodal transport

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR958290A (de) * 1950-03-06
DE712104C (de) * 1937-03-18 1941-10-13 Schweizerische Lokomotiv Universalgelenk fuer die unmittelbare Abstuetzung zweier Wagenenden auf einem gemeinsamen Drehgestell
US3861706A (en) * 1971-01-28 1975-01-21 Mercadante Joseph Air suspension with saddle members

Also Published As

Publication number Publication date
IT8367828A0 (it) 1983-07-29
DE3482733D1 (de) 1990-08-23
EP0134201A3 (en) 1987-04-15
EP0134201A2 (de) 1985-03-13
ATE54628T1 (de) 1990-08-15
IT1193139B (it) 1988-06-02

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