EP0818375B1 - Bogie de véhicule ferroviaire - Google Patents

Bogie de véhicule ferroviaire Download PDF

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Publication number
EP0818375B1
EP0818375B1 EP96830653A EP96830653A EP0818375B1 EP 0818375 B1 EP0818375 B1 EP 0818375B1 EP 96830653 A EP96830653 A EP 96830653A EP 96830653 A EP96830653 A EP 96830653A EP 0818375 B1 EP0818375 B1 EP 0818375B1
Authority
EP
European Patent Office
Prior art keywords
hunting
bogie
dampers
frame
telescopic
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
EP96830653A
Other languages
German (de)
English (en)
Other versions
EP0818375A3 (fr
EP0818375A2 (fr
Inventor
Pietro Vanolo
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 Ferroviaria SpA
Original Assignee
Fiat Ferroviaria 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 SpA filed Critical Fiat Ferroviaria SpA
Publication of EP0818375A2 publication Critical patent/EP0818375A2/fr
Publication of EP0818375A3 publication Critical patent/EP0818375A3/fr
Application granted granted Critical
Publication of EP0818375B1 publication Critical patent/EP0818375B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04—Bolster supports or mountings
    • B61F5/12—Bolster supports or mountings incorporating dampers

Definitions

  • the present invention is related to railway vehicle bogies, of the type comprising a frame, two axles whose shafts are connected to the frame through respective journal boxes, a load bearing transom located above the center area of the frame and intended to be fixed to a railway vehicle body, resilient suspension means interposed between the center area of the frame and the load bearing transom, vertical shock absorber means and lateral shock absorber means operatively associated to said resilient suspension means, and hunting absorber means arranged substantially longitudinally at the opposite sides of the bogie.
  • the hunting absorber means comprise, at each bogie side, a single damper interposed substantially horizontally, between the bogie frame and the corresponding end of the load bearing transom to be secured to the railway vehicle body.
  • the object of the present invention is to overcome the above drawbacks, and to provide a railway vehicle bogie of the type defined at the beginning, having enhanced functional efficiency in connection to the damping of hunting instability, and thus providing improved dynamic behaviour.
  • a further object of the invention is to simplify the bogie construction, with particular reference to the arrangement of the vertical shock absorber means and/or of the lateral shock absorber means.
  • the invention is directed to a railway vehicle bogie of the type set forth at the beginning, the main feature of which resides in that said hunting absorber means comprise, at each bogie side, a pair of symetrically disposed telescopic dampers each having one end pivotally connected to the load bearing transom and the opposite end pivotally connected to the corresponding journal box of a respective axle.
  • the anti-hunting performance of the bogie according to the invention is remarkably enhanced, since the two pairs of hunting absorbers directly operate on the axles, thus avoiding that instability thereof be transmitted to the bogie frame and from the latter to the railway vehicle body.
  • Improvement of the bogie stability is equivalent to a reduction of the hunting oscillation transmitted thereby to the body, thus resulting into a better travel comfort for the passengers of a railway vehicle equipped with bogies according to the invention.
  • the energy which has to be dissipated by the hunting absorbers is lower than in the case of the traditional bogies.
  • a further advantage of the arrangement according to the invention which is particularly appreciable in the case of a railway vehicle not provided with a body tilt system for balancing the non-compensated centrifugal acceleration along a curve, resides in that the two pairs of hunting dampers apply steering forces onto the axles along the entry and exit sections of the curve.
  • the telescopic hunting dampers of each pair are arranged obliquely: particularly, inclination thereof in the vertical plane is about 10-20°, conveniently between 12° and 15°, and inclination thereof in the horizontal plane is about 4-6°.
  • This arrangement besides enhancing the said self-steering effect of the axles, additionally enables employing the two pairs of hunting dampers possibly even for integrating or replacing the vertical shock absorber function and/or the lateral shock absorber function.
  • the vertical shock absorbers and/or the lateral shock absorbers provided in the traditional railway vehicle bogies may be suppressed, thus achieving evident advantages in terms of construction simplicity and weight, encumbrance and cost reduction.
  • a bogie for railway vehicles comprises a frame 1 formed by two longitudinal members 2, 3 connected by two transverse members 4, 5 and carrying, near to the respective ends, two axles 6, 7.
  • Each axle 6, 7 is comprised in a conventional way of a shaft 8, 9 supporting a pair of wheels 10, 11 and the ends of which are connected to the longitudinal members 2, 3 of the frame 1 through respective journal boxes 12, 13 of a conventional type.
  • Primary suspension members also of a conventional type, generally designated as 14, 15 in figure 1, are provided between the frame 1 of the bogie and the axles 6, 7.
  • References numeral 16 indicates a load bearing transom arranged above the center area of the frame 1, parallelly to the transverse members 4, 5, which is intended to be rigidly secured to the floor of a railway vehicle body. Between the load bearing transom 16 and the frame 1 secondary vertical and lateral suspension springs 17 are interposed, also in a conventional fashion, through which the necessary rotations of the bogie relative to the body around a vertical axis are also enabled.
  • the bogie is also equipped with vertical shock absorbers 18 arranged at one side of the suspension springs 17 between the center areas of the longitudinal members 2, 3 and the load bearing transom 16, and with lateral shock absorbers 19 located transversally with one end thereof articulated to a respective longitudinal member 2, 3 and the opposite end thereof intended to be articulated to a corresponding attachment element fixed to the floor of the railway vehicle body.
  • reference numerals 20 diagrammatically designate two linear, normally hydraulic actuators arranged transversally and included in an active lateral suspension system operating, in a way known per se, when the railway vehicle is travelling along a curve.
  • the bogie may further be equipped with a tilt system of the body around its longitudinal axis, also known per se, acting to balance the non-compensated centrifugal force along a curve.
  • the bogie is provided with a hunting absorbing system which, according to the invention, comprises two pairs of juxtaposed telescopic dampers 21, 22 arranged at the opposite sides of the frame 1.
  • each hunting damper 21, 22 has one end pivotally connected to a bracket 23, 24 fixedly secured to the journal box 12, 13 of a corresponding axle 6, 7, and the other end pivotally connected to the load bearing transom 16.
  • each end of the transom 16 is lowerly provided with a central attachment element 25, 26 for the pivoted connection of the corresponding hunting dampers 21 and 22, respectively.
  • a further and remarkable advantage which may be achieved through the invention consists of that the dampers 21, 22 can provide, in addition to the anti- hunting function, the task of vertical shock absorbers and/or lateral shock absorbers.

Claims (6)

  1. Bogie de véhicule ferroviaire comprenant un châssis (1), deux essieux (6, 7) dont les arbres (8, 9) sont reliés au châssis (1) par l'intermédiaire de boítes d'essieu (12, 13) respectives, une traverse de support de charge (16) située au-dessus de la zone centrale du châssis (1) et prévue pour être fixée sur une caisse de véhicule ferroviaire, des moyens de suspension élastique (17) interposés entre ladite zone centrale du châssis (1) et ladite traverse de support de charge (16), des moyens d'amortissement vertical (18) et des moyens d'amortissement latéral (19) associés de manière opérationnelle aux dits moyens de suspension élastique (17), et des moyens d'amortissement de lacet (21, 22) disposés sensiblement longitudinalement au niveau des côtés opposés du bogie, caractérisé en ce que lesdits moyens d'amortissement de lacet comportent au niveau de chaque côté de bogie une paire d'amortisseurs télescopiques disposés de manière symétrique (21, 22) ayant chacun une extrémité reliée de façon pivotante à ladite traverse de support de charge (16) et l'extrémité opposée reliée de façon pivotante à la boíte d'essieu correspondante (12, 13) d'un essieu respectif (8, 9).
  2. Bogie selon la revendication 1, caractérisé en ce que les amortisseurs de lacet télescopiques (21, 22) de chaque paire sont disposés en oblique.
  3. Bogie selon la revendication 2, caractérisé en ce que les amortisseurs de lacet télescopiques (21, 22) de chaque paire sont inclinés dans le plan vertical d'environ 10 à 20°, de préférence entre 12° et 15°.
  4. Bogie selon la revendication 2, caractérisé en ce que les amortisseurs de lacet télescopiques (21, 22) de chaque paire sont inclinés dans le plan horizontal d'environ 4 à 6°.
  5. Bogie selon l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdits amortisseurs de lacet télescopiques (21, 22) constituent également lesdits moyens d'amortissement vertical.
  6. Bogie selon l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdits amortisseurs de lacet télescopiques (21, 22) constituent également lesdits moyens d'amortissement latéral.
EP96830653A 1996-07-11 1996-12-24 Bogie de véhicule ferroviaire Expired - Lifetime EP0818375B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960591 1996-07-11
IT96TO000591A IT1286164B1 (it) 1996-07-11 1996-07-11 Carrello per veicoli ferroviari.

Publications (3)

Publication Number Publication Date
EP0818375A2 EP0818375A2 (fr) 1998-01-14
EP0818375A3 EP0818375A3 (fr) 1999-03-31
EP0818375B1 true EP0818375B1 (fr) 2001-05-23

Family

ID=11414771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830653A Expired - Lifetime EP0818375B1 (fr) 1996-07-11 1996-12-24 Bogie de véhicule ferroviaire

Country Status (8)

Country Link
EP (1) EP0818375B1 (fr)
AT (1) ATE201361T1 (fr)
DE (1) DE69612974T2 (fr)
DK (1) DK0818375T3 (fr)
ES (1) ES2159350T3 (fr)
GR (1) GR3036428T3 (fr)
IT (1) IT1286164B1 (fr)
PT (1) PT818375E (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013300U1 (de) * 2007-09-21 2009-02-12 Liebherr-Aerospace Lindenberg Gmbh Aktiver hydraulischer Dämpfer und hydraulischer Stellantrieb
CN104085418A (zh) * 2014-07-22 2014-10-08 南车株洲电力机车有限公司 铁路机车车辆转向架及其抗蛇行减振器布置结构
DE102017128598B4 (de) * 2017-12-01 2019-10-31 Andreas Fiedler Anordnung zum Dämpfen des Wankens und zum Querstabilisieren eines Wagenkastens für Landfahrzeuge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL264966A (fr) * 1960-05-24
FI82424C (fi) * 1989-05-24 1991-03-11 Valmet Oy Boggiekonstruktion foer jaernvaegsvagn.
US5107773A (en) * 1990-09-27 1992-04-28 Dofasco Inc. Railway trucks
DE4122741A1 (de) * 1991-07-10 1993-01-14 Waggon Union Gmbh Drehgestell fuer schnellauffaehige schienenfahrzeuge

Also Published As

Publication number Publication date
ATE201361T1 (de) 2001-06-15
ITTO960591A1 (it) 1998-01-11
EP0818375A3 (fr) 1999-03-31
IT1286164B1 (it) 1998-07-07
DE69612974T2 (de) 2001-10-25
DE69612974D1 (de) 2001-06-28
PT818375E (pt) 2001-09-28
DK0818375T3 (da) 2001-09-10
ES2159350T3 (es) 2001-10-01
EP0818375A2 (fr) 1998-01-14
ITTO960591A0 (fr) 1996-07-11
GR3036428T3 (en) 2001-11-30

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