EP1264750B1 - Système de suspension secondaire pour bogies de véhicules à plancher bas - Google Patents

Système de suspension secondaire pour bogies de véhicules à plancher bas Download PDF

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Publication number
EP1264750B1
EP1264750B1 EP02012004A EP02012004A EP1264750B1 EP 1264750 B1 EP1264750 B1 EP 1264750B1 EP 02012004 A EP02012004 A EP 02012004A EP 02012004 A EP02012004 A EP 02012004A EP 1264750 B1 EP1264750 B1 EP 1264750B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
piston unit
suspension system
coil spring
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
EP02012004A
Other languages
German (de)
English (en)
Other versions
EP1264750A1 (fr
Inventor
Matthias Dipl.-Ing. Schunke
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 Deutschland GmbH
Original Assignee
Alstom LHB GmbH
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
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Application filed by Alstom LHB GmbH filed Critical Alstom LHB GmbH
Publication of EP1264750A1 publication Critical patent/EP1264750A1/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
    • B61F5/02—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
    • B61F5/14—Side bearings
    • 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

Definitions

  • the invention relates to a Sekundmaschinefedersystem for trolleys on low-floor vehicles, especially on rail-mounted low-floor vehicles for receiving vertical movements between the chassis and car body of the low-floor vehicle.
  • trolleys for rail vehicles have primary spring elements for the resilient support of the individual wheels or wheel axles mounted on rockers relative to the chassis frame and via secondary spring elements for the resilient support of the vertical movement of the car body relative to the chassis frame.
  • a landing gear for low-floor car is known in which the car body is supported vertically via secondary springs on the chassis frame.
  • secondary springs coil springs are used, which are mounted in pockets which are formed on both sides of the vehicle frame. With this design, it is possible to improve the low-floor of the low-floor vehicle.
  • a common disadvantage of the use of coil springs as secondary springs is that due to the vertical direction of action of the springs the secondary spring system has a vertical dimension that extends into the floor area of the car body and thus a consistently flat car floor is not accessible.
  • the height determining the overall height of the secondary spring system is the block length of the spring, ie the state of the coil spring when all windings are in contact.
  • the coil springs used in rail vehicle construction have a small spring travel with respect to the block length.
  • the invention has for its object to provide a Sekundärfedersystem for trolleys on low-floor vehicles, the vertical extent is determined essentially by the constructive distance that exists between the chassis and car body to allow vertical compensation.
  • the secondary spring system consists of several spaced-apart secondary springs, which are connected on the one hand to the chassis and on the other hand to the car body.
  • Part of the secondary spring is arranged between the vehicle body and chassis for receiving the vertical vibrations in the chassis first vertically single-acting cylinder / piston unit for power.
  • the cylinder of the first cylinder / piston unit is firmly connected to the chassis, while the piston is articulated with its piston rod on the car body - or vice versa.
  • the displacement of the first cylinder / piston unit is arranged via a hydraulic line with the displacement of a second cylinder / piston unit, which is spaced from the first cylinder / piston unit and position independent in the rail vehicle is connected.
  • the second cylinder / piston unit is operatively connected to a helical spring such that the helical spring is supported with its one end on the cylinder 7 and can be acted on at its other end via the piston of the second cylinder / piston unit.
  • Fig. 1 shows the scheme of a single secondary spring according to the invention.
  • the spring consists of a first cylinder / piston unit 1, which is arranged in the vertical direction of action instead of the known prior art, designed as a helical spring secondary spring, and which serves to absorb the forces that occur when driving between chassis 11 and car body 12 Vibrations are generated.
  • the cylinder / piston unit 1 consists of a cylinder 2, which is fixedly mounted on the chassis 11.
  • the piston rod 4 extends in the direction of the car body 12 and on which the car body 12 is supported.
  • the cylinder 2 can be associated with the vehicle body 12 and the piston 3 with the chassis 11.
  • the cylinder / piston unit 1 is connected via a hydraulic line 5 to a second cylinder / piston unit 6.
  • the cylinder / piston unit 6 serves to dispense the power of the secondary spring and can at any point of the chassis 11, wherein the direction of action and thus the position of the cylinder / piston unit 6 can be chosen arbitrarily.
  • the cylinder / piston unit 6 also consists of a fixed cylinder 7 and a guided therein single-acting piston 8.
  • the cylinder 7 surrounds a coil spring 9, which is fixed at one end to the cylinder 7 and with its other end to the free end of Piston rod 10 is connected.
  • the interaction of cylinder / piston unit 6 and coil spring 9 takes place in the same effective direction.
  • the coil spring 9 is designed so that it meets the requirements as a spring and damping element of a secondary spring system for the selected use of rail vehicles.
  • the secondary spring system according to the invention will be described in more detail below in its mode of action.
  • the causal task of the secondary spring system is the compensation of vibrations between the chassis 11 and the car body 12 of a rail vehicle, which may occur during travel due to unevenness of the rail track, due to foreign objects, traction influences and the like.
  • the oscillations between the chassis 11 and the car body 12 represent as changing distance changes between the two parts. This change in distance is absorbed by the cylinder / piston unit 1 in such a way that the car body 12 via the piston rod 4 bearing piston 3 in reducing the distance in the cylinder 2 is moved into it. This is associated with a reduction in the displacement of the cylinder 2 and thus a displacement of the hydraulic oil from the cylinder / piston unit. 1
  • the displaced volume is supplied to the cylinder 7 of the cylinder / piston unit 6.
  • the piston 8 is moved out of the cylinder 7, which is an act of the cylinder / piston unit 6 surrounding coil spring 9 is accompanied.
  • the coil spring 9 indirectly takes on the triggered by reducing the distance between the chassis 11 and the car body 12 force.
  • the limitation of the spring travel of the coil spring 9 is effected by limiting the stroke of the piston 8 in the cylinder. 7
  • the described elements act together when the distance between the chassis 11 and the car body 12 increases.
  • the thereby adjusting low-load state of the cylinder / piston unit 1 causes the coil spring 9 relaxes.
  • the piston 8 is urged by the coil spring 9 in the cylinder 7 and the hydraulic oil via the hydraulic line 5 to the cylinder 2 of the cylinder / piston unit 1 is supplied.
  • the moving out of the cylinder 2 out piston 3 follows the increase in the distance between the chassis 11 and the car body 12 within predetermined limits and exerts by the action of the coil spring 9 damping the movement of the car body 12.
  • the basic hydraulic concept of the secondary spring system has the advantage that the vibration behavior of the car body 12 can be influenced in a simple manner by known hydraulic components.
  • the secondary spring system When using a suitable throttle valve 14 in the hydraulic line 5, the secondary spring system also serves as a spring damper, so that it can be dispensed with additional vibration damper.
  • the most important advantage of the secondary spring system according to the invention is that with the arrangement of the cylinder / piston unit 1 between the chassis 11 and the car body 12, a further reduction in the height of the component acting in this area is connected. While the height is determined by the use of the conventional coil spring by the block length of the coil spring, the height of the cylinder / piston unit 1 can be minimized to the length of the spring travel of the conventional design.
  • the actual and necessary for the vibration compensation spring element can be arranged in operative connection with the second cylinder / piston unit 6 at an arbitrary position and in any position in the vehicle and thus does not affect the constructive dimensioning of the secondary spring system. This circumstance thus has an advantageous effect on the further improvement of low-floor in low-floor vehicles.
  • the characteristic of the coil spring 9 can be optimized independently of the given stroke of the cylinder / piston unit 1 and based on the application by the diameter of the piston 8 is designed to be smaller compared to the diameter of the piston 3.
  • the associated greater travel of the coil spring 9 allows a more sensitive function of the secondary spring system.
  • Fig. 2 makes the position of the cylinder / piston unit 1 in the described embodiment clear.
  • the cylinder / piston units 1 are positioned with minimized height.
  • the cylinder / piston units 6 with the associated Coil springs 9 are below the cross member of the chassis 11 horizontally and transversely to the direction of travel of the rail vehicle and thus take no influence on the height of the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Claims (4)

  1. Système de ressorts secondaires pour châssis sur des véhicules à plate-forme surbaissée, destiné à recevoir les vibrations agissant entre le châssis et la caisse et composé de plusieurs ressorts secondaires espacés qui sont reliés d'une part au châssis et d'autre part à la caisse, caractérisé en ce que le ressort secondaire se compose d'une première unité cylindre/piston (1) qui est disposée entre la caisse (12) et le châssis (11), qui a une action verticale simple, qui est destinée à recevoir les forces et dont le cylindre (2) est solidaire du châssis (11) tandis que son piston (3) est articulé avec sa tige (4) à la caisse (12), ou inversement, la cylindrée de la première unité cylindre/piston (1) étant reliée par une conduite hydraulique (5) à la cylindrée d'une seconde unité cylindre/piston (6) qui est disposée dans le véhicule ferroviaire à une distance quelconque de la première unité (1) et indépendamment de la position de celle-ci, et cette seconde unité cylindre/piston (6) étant en relation fonctionnelle avec un ressort hélicoïdal (9) de sorte que ledit ressort (9) soit en appui avec une extrémité sur le cylindre (7) et puisse être contraint au niveau de son autre extrémité par l'intermédiaire du piston (8) de la seconde unité cylindre/piston (6).
  2. Système de ressorts secondaires selon la revendication 1, caractérisé en ce qu'un accumulateur de pression contraint (13) est monté parallèlement à la conduite hydraulique (5).
  3. Système de ressorts secondaires selon la revendication 1 ou 2, caractérisé en ce qu'une soupape d'étranglement (14) est disposée dans la conduite hydraulique (5).
  4. Système de ressorts secondaires selon l'une au moins des revendications 1 à 3 précédentes, caractérisé en ce que le ressort hélicoïdal (9) entoure le cylindre (7) de la seconde unité cylindre/piston (6) avec un sens d'action coaxial.
EP02012004A 2001-06-08 2002-05-31 Système de suspension secondaire pour bogies de véhicules à plancher bas Expired - Lifetime EP1264750B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10128003 2001-06-08
DE10128003A DE10128003A1 (de) 2001-06-08 2001-06-08 Sekundärfedersystem für Fahrwerke an Niederflurfahrzeugen

Publications (2)

Publication Number Publication Date
EP1264750A1 EP1264750A1 (fr) 2002-12-11
EP1264750B1 true EP1264750B1 (fr) 2006-11-08

Family

ID=7687732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012004A Expired - Lifetime EP1264750B1 (fr) 2001-06-08 2002-05-31 Système de suspension secondaire pour bogies de véhicules à plancher bas

Country Status (4)

Country Link
EP (1) EP1264750B1 (fr)
AT (1) ATE344751T1 (fr)
DE (2) DE10128003A1 (fr)
ES (1) ES2275775T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105310A1 (de) 2012-06-19 2013-12-19 Bombardier Transportation Gmbh Fahrzeug mit einer Federeinrichtung mit vorgebbarer Querfedercharakteristik

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287025A (en) * 1963-07-18 1966-11-22 Alfa Romeo Spa Suspension with constant trim and frequency
US3889607A (en) * 1974-07-05 1975-06-17 Evans Prod Co Car rock and roll hydraulic side bearing stabilizing arrangement
CH671930A5 (fr) * 1986-07-31 1989-10-13 Sig Schweiz Industrieges
DE4040047C2 (de) * 1990-12-14 1996-06-27 Rexroth Mannesmann Gmbh Wagenkasten-Neigungssystem
KR0131314B1 (ko) * 1992-06-24 1998-04-21 전성원 자동차의 전륜 현가장치
DE4238574A1 (de) * 1992-11-16 1994-05-19 Abb Henschel Waggon Union Fahrwerk für Niederflurbahnen
DE4243886A1 (de) * 1992-12-23 1994-06-30 Rexroth Mannesmann Gmbh Aufhängung für einen Wagenkasten an einem Fahrgestell, insbesondere an einem Drehgestell eines schienengebundenen Fahrzeugs
AT407032B (de) * 1999-02-19 2000-11-27 Siemens Sgp Verkehrstech Gmbh Federung für ein schienenfahrzeug

Also Published As

Publication number Publication date
ES2275775T3 (es) 2007-06-16
EP1264750A1 (fr) 2002-12-11
ATE344751T1 (de) 2006-11-15
DE50208635D1 (de) 2006-12-21
DE10128003A1 (de) 2002-12-12

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