EP0392414B1 - Axle with primary suspension and variable orientation - Google Patents
Axle with primary suspension and variable orientation Download PDFInfo
- Publication number
- EP0392414B1 EP0392414B1 EP90106743A EP90106743A EP0392414B1 EP 0392414 B1 EP0392414 B1 EP 0392414B1 EP 90106743 A EP90106743 A EP 90106743A EP 90106743 A EP90106743 A EP 90106743A EP 0392414 B1 EP0392414 B1 EP 0392414B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- primary suspension
- blocks
- chassis
- rail vehicle
- 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
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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
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
- B61F5/386—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles fluid actuated
Definitions
- the present invention relates to a rail vehicle chassis comprising at least one axle mounted between two axle boxes connected to the body or bogie chassis by means of a primary suspension.
- This primary suspension is often produced by two elastomer blocks with metal frames, arranged on either side of the axle box and bearing on the chassis.
- axles Under certain operating conditions, and especially in curves, it is useful for the axles to be steerable so that they fit correctly in the curve, thus avoiding excessive wear of the wheels.
- Axle orientation is therefore possible, due to the flexibility of the primary suspension.
- Document CH-A-390 980 discloses a chassis of a railway vehicle comprising at least one steerable axle by means of two bellows supplied by a source of pressurized fluid. Each bellows rests on the one hand against the vehicle and on the other hand against an axle frame.
- Document DE-A-3 123 858 discloses a running gear for a rail vehicle, with axles which can be oriented under the control of hydraulic cylinders. Each axle is mounted on two boxes connected to the chassis of the undercarriage by springs serving as primary suspension.
- An object of the invention is to provide a chassis for a rail vehicle comprising at least one axle having a primary suspension and provided with reliable, simple and space-saving orientation means.
- the subject of the invention is a chassis for a railway vehicle comprising at least one axle with variable orientation and rotating between two axle boxes, the chassis being provided with a primary suspension constituted, by axle box, of two elastic blocks supporting the load of the chassis and arranged on either side of the axle box, characterized in that said blocks have an internal cavity connected, by a distribution system, to a source of fluid at adjustable pressure.
- Figure 1 shows schematically and in accordance with known art a bogie chassis 1 and an axle box 4 connected to the chassis by a primary suspension formed of two blocks 5A, and 5B, formed of an elastomer such as rubber 50 reinforced with metallic reinforcements 51.
- FIG. 2 In FIG. 2 are shown only a chassis 1 and a single axle 2 provided with its two wheels 3.
- the axle 2 can therefore be oriented by turning around a vertical axis Z of a value + a or - a by relative to a rest position corresponding to an axis Y perpendicular to the longitudinal axis X of the chassis.
- Figure 3 are shown the frame 1, the axle 2 and its two wheels 3, but also two axle boxes 4 in which the axle rotates, four elastic blocks 5A, 5B, carrying the two boxes.
- the blocks 5A, 5B constituting the primary suspension of the axle are each provided with a cavity 6, and with a distribution system 7 ensuring the supply of fluid to the cavities 6 by lines 8 and 9.
- the two pipes 8 supply the cavities 6 of the two blocks 5B and the two pipes 9 supply the cavities 6 of the two blocks 5A.
- Figure 4 shows in partially cut elevation, an axle box 4, two elastic elements 5A, 5B and their cavity 6, the element 5A being connected to a frame element 1A and the element 5B being connected to a chassis 1B.
- the orientation of the axle is zero.
- Figure 5 is a view similar to that of Figure 4, but in which the axle is inclined at an angle + a (see Figure 3) which corresponds to a displacement d of the axle box.
- the axle is tilted as follows:
- the railway comprises, at the entrance of a curve, a transmitter which sends a signal giving the radius of curvature.
- the vehicle includes a sensor which records this signal and processing means which transforms it into information i.
- the distribution system 7 is connected to a hydraulic source delivering a fluid under pressure P and it is controlled by information i to supply either the pipes 8 or the pipes 9.
- the cavities 6 of the blocks 5A are then under pressure and they deform the blocks 5A in extension, while the blocks 5B are compressed (see FIG. 5).
- the axle then inclines at an angle a varying between 0 and + a which represents a maximum inclination, and this as a function of the pressure delivered by the distribution system 7, this pressure being a function of the radius of curvature of the track . It is therefore possible to modulate the orientation angle of the axle as a function of the radius of curvature of the track.
- the signal can come from external signals other than the radius of curvature of the railway.
- the invention makes it possible to produce an easily and securely orientable axle, remaining reliable over time, without significantly encumbering the usual environment of the axle.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
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Abstract
Description
La présente invention est relative à un châssis de véhicule ferroviaire comportant au moins un essieu monté entre deux boîtes d'essieu reliées au châssis de caisse ou de bogie au moyen d'une suspension primaire.The present invention relates to a rail vehicle chassis comprising at least one axle mounted between two axle boxes connected to the body or bogie chassis by means of a primary suspension.
Cette suspension primaire est souvent réalisée par deux blocs en élastomère à armatures métalliques, disposés de part et d'autre de la boîte d'essieu et prenant appui sur le châssis.This primary suspension is often produced by two elastomer blocks with metal frames, arranged on either side of the axle box and bearing on the chassis.
Dans certaines conditions d'exploitation, et notamment en courbe, il est utile que les essieux soient orientables, afin qu'ils s'inscrivent correctement dans la courbe évitant ainsi une usure trop importante des roues.Under certain operating conditions, and especially in curves, it is useful for the axles to be steerable so that they fit correctly in the curve, thus avoiding excessive wear of the wheels.
On connaît, notamment par le document FR-A-2 530 567, des dispositifs d'orientation entièrement mécaniques permettant d'orienter les essieux. Ces dispositifs comportent des palonniers et des bielles actionnant directement les boîtes d'essieu.Are known, in particular from document FR-A-2 530 567, entirely mechanical orientation devices making it possible to orient the axles. These devices include spreaders and connecting rods directly actuating the axle boxes.
L'orientation des essieux est donc possible, en raison de la flexibilité de la suspension primaire.Axle orientation is therefore possible, due to the flexibility of the primary suspension.
Mais ces dispositifs sont complexes et de fiabilité incertaine. Par ailleurs, ces dispositifs sont encombrants et difficiles à loger à l'intérieur d'un bogie déjà bien encombré.However, these devices are complex and of uncertain reliability. Furthermore, these devices are bulky and difficult to accommodate inside an already well congested bogie.
Le document CH-A-390 980 divulgue un châssis de véhicule ferroviaire comportant au moins un essieu orientable au moyen de deux soufflets alimentés par une source de fluide sous pression. Chaque soufflet s'appuie d'une part contre le véhicule et d'autre part contre un cadre de l'essieu.Document CH-A-390 980 discloses a chassis of a railway vehicle comprising at least one steerable axle by means of two bellows supplied by a source of pressurized fluid. Each bellows rests on the one hand against the vehicle and on the other hand against an axle frame.
Le document DE-A-3 123 858 divulgue un train de roulement pour véhicule ferroviaire, à essieux orientables sous la commande de vérins hydrauliques. Chaque essieu est monté sur deux boîtes reliées au châssis du train de roulement par des ressorts servant de suspension primaire.Document DE-A-3 123 858 discloses a running gear for a rail vehicle, with axles which can be oriented under the control of hydraulic cylinders. Each axle is mounted on two boxes connected to the chassis of the undercarriage by springs serving as primary suspension.
Un but de l'invention est de réaliser un châssis de véhicule ferroviaire comprenant au moins un essieu possédant une suspension primaire et muni de moyens d'orientation fiables, simples et peu encombrants.An object of the invention is to provide a chassis for a rail vehicle comprising at least one axle having a primary suspension and provided with reliable, simple and space-saving orientation means.
L'invention a pour objet un châssis de véhicule ferroviaire comportant au moins un essieu à orientation variable et tournant entre deux boîtes d'essieu, le châssis étant pourvu d'une suspension primaire constituée, par boîte d'essieu, de deux blocs élastiques supportant la charge du châssis et disposés de part et d'autre de la boîte d'essieu, caractérisé en ce que lesdits blocs possèdent une cavité intérieure reliée, par un système de distribution, à une source de fluide à pression réglable.The subject of the invention is a chassis for a railway vehicle comprising at least one axle with variable orientation and rotating between two axle boxes, the chassis being provided with a primary suspension constituted, by axle box, of two elastic blocks supporting the load of the chassis and arranged on either side of the axle box, characterized in that said blocks have an internal cavity connected, by a distribution system, to a source of fluid at adjustable pressure.
Il est décrit ci-après, un exemple de châssis selon l'invention, en référence au dessin annexé dans lequel :
- la figure 1 est une vue partielle schématique d'un châssis de véhicule ferroviaire selon l'art connu,
- la figure 2 est un schéma de principe qui montre l'orientation possible d'un essieu par rapport à un châssis quelconque,
- la figure 3 est une vue de dessus d'une partie de châssis selon l'invention,
- la figure 4 est une vue selon la ligne IV-IV de la figure 3, l'essieu étant en position d'orientation nulle,
- la figure 5 est une vue analogue, l'essieu étant orienté d'un angle + a.
- FIG. 1 is a partial schematic view of a chassis of a rail vehicle according to known art,
- FIG. 2 is a block diagram which shows the possible orientation of an axle with respect to any chassis,
- FIG. 3 is a top view of a chassis part according to the invention,
- FIG. 4 is a view along the line IV-IV of FIG. 3, the axle being in the zero orientation position,
- Figure 5 is a similar view, the axle being oriented at an angle + a.
La figure 1 montre schématiquement et conformément à l'art connu un châssis de bogie 1 et une boîte d'essieu 4 reliée au châssis par une suspension primaire formée de deux blocs 5A, et 5B, formés d'un élastomère tel que le caoutchouc 50 armé au moyen d'armatures métalliques 51.Figure 1 shows schematically and in accordance with known art a bogie chassis 1 and an axle box 4 connected to the chassis by a primary suspension formed of two
Dans la figure 2 sont représentés uniquement un châssis 1 et un seul essieu 2 muni de ses deux roues 3. L'essieu 2 peut donc s'orienter en tournant autour d'un axe vertical Z d'une valeur + a ou - a par rapport à une position de repos correspondant à un axe Y perpendiculaire à l'axe longitudinal X du châssis.In FIG. 2 are shown only a chassis 1 and a single axle 2 provided with its two wheels 3. The axle 2 can therefore be oriented by turning around a vertical axis Z of a value + a or - a by relative to a rest position corresponding to an axis Y perpendicular to the longitudinal axis X of the chassis.
Bien entendu, en courbe, l'autre essieu d'un bogie ou d'un véhicule doit être orienté d'une valeur - a quand l'essieu 2 est orienté d'une valeur + a, et inversement.Of course, in a curve, the other axle of a bogie or of a vehicle must be oriented by a value - a when the axle 2 is oriented by a value + a, and vice versa.
Dans la figure 3 sont représentés le châssis 1, l'essieu 2 et ses deux roues 3, mais aussi deux boîtes d'essieu 4 dans lesquelles tourne l'essieu, quatre blocs élastiques 5A, 5B, portant les deux boîtes. Selon la caractéristique principale de l'invention, les blocs 5A, 5B constituant la suspension primaire de l'essieu sont munis chacun d'une cavité 6, et d'un système de distribution 7 assurant l'alimentation en fluide des cavités 6 par des canalisations 8 et 9.In Figure 3 are shown the frame 1, the axle 2 and its two wheels 3, but also two axle boxes 4 in which the axle rotates, four
Les deux canalisations 8 assurent l'alimentation des cavités 6 des deux blocs 5B et les deux canalisations 9 assurent l'alimentation des cavités 6 des deux blocs 5A.The two pipes 8 supply the
La figure 4 montre en élévation partiellement coupée, une boîte d'essieu 4, deux éléments élastiques 5A, 5B et leur cavité 6, l'élément 5A étant relié à un élément de châssis 1A et l'élément 5B étant relié à un élément de châssis 1B. Dans cette figure, l'orientation de l'essieu est nulle.Figure 4 shows in partially cut elevation, an axle box 4, two
La figure 5 est une vue analogue à celle de la figure 4, mais dans laquelle l'essieu est incliné d'un angle + a (voir figure 3) ce qui correspond à un déplacement d de la boîte d'essieu.Figure 5 is a view similar to that of Figure 4, but in which the axle is inclined at an angle + a (see Figure 3) which corresponds to a displacement d of the axle box.
Une inclinaison de l'essieu s'effectue de la manière suivante :
La voie ferrée comporte, à l'entrée d'une courbe, un émetteur qui envoie un signal donnant le rayon de courbure. Le véhicule comporte un capteur qui enregistre ce signal et des moyens de traitement qui le transforme en une information i.The axle is tilted as follows:
The railway comprises, at the entrance of a curve, a transmitter which sends a signal giving the radius of curvature. The vehicle includes a sensor which records this signal and processing means which transforms it into information i.
Le système de distribution 7 est connecté à une source hydraulique délivrant un fluide sous pression P et il est commandé par l'information i pour alimenter soit les canalisations 8, soit les canalisations 9.The
Si les canalisations 8 soit alimentées, les cavités 6 des blocs 5A sont alors sous pression et elles déforment les blocs 5A en extension, tandis que les blocs 5B sont comprimés (voir figure 5).If the pipes 8 are supplied, the
L'essieu s'incline alors d'un angle a variant entre 0 et + a qui représente une inclinaison maximale, et ceci en fonction de la pression délivrée par le système de distribution 7, cette pression étant fonction du rayon de courbure de la voie. On peut donc moduler l'angle d'orientation de l'essieu en fonction du rayon de courbure de la voie.The axle then inclines at an angle a varying between 0 and + a which represents a maximum inclination, and this as a function of the pressure delivered by the
Bien entendu le signal peut provenir de signaux extérieurs autres que le rayon de courbure de la voie ferrée.Of course the signal can come from external signals other than the radius of curvature of the railway.
L'invention permet de réaliser un essieu orientable facilement et de manière sûre, restant fiable dans le temps, sans encombrer de manière notable l'environnement habituel de l'essieu.The invention makes it possible to produce an easily and securely orientable axle, remaining reliable over time, without significantly encumbering the usual environment of the axle.
Claims (2)
- A rail vehicle frame including at least one steerable axle (2) that rotates between two axle boxes (4), the frame (1) being provided with a primary suspension constituted for each axle box by two resilient blocks (5A, 5B) supporting the load of the frame and disposed on either side of the axle box, characterized in that each of said blocks (5A, 5B) possesses an internal cavity (6) connected via a distribution system (7) to an adjustable pressure fluid source.
- A rail vehicle frame according to claim 1, characterized in that the distribution system (7) is driven on the basis of information (i) given by means for processing a signal delivered by a sensor secured to the rail vehicle, the sensor being suitable for detecting signals transmitted by a transmitter disposed at the entrance to a curve of the railway track.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8904680 | 1989-04-10 | ||
FR8904680A FR2645483B1 (en) | 1989-04-10 | 1989-04-10 | DEVICE FOR ORIENTATION OF AN AXLE OF A RAIL VEHICLE |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0392414A2 EP0392414A2 (en) | 1990-10-17 |
EP0392414A3 EP0392414A3 (en) | 1990-12-05 |
EP0392414B1 true EP0392414B1 (en) | 1994-03-02 |
Family
ID=9380538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90106743A Expired - Lifetime EP0392414B1 (en) | 1989-04-10 | 1990-04-09 | Axle with primary suspension and variable orientation |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0392414B1 (en) |
JP (1) | JPH072463B2 (en) |
AT (1) | ATE102135T1 (en) |
CA (1) | CA2014168C (en) |
DE (1) | DE69006886T2 (en) |
DK (1) | DK0392414T3 (en) |
ES (1) | ES2050865T3 (en) |
FR (1) | FR2645483B1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5199359A (en) * | 1992-05-20 | 1993-04-06 | Innotermodal Inc. | Steerable rail-bogie |
JP2008247173A (en) * | 2007-03-30 | 2008-10-16 | Railway Technical Res Inst | Axlebox supporting device |
DE102013224933B4 (en) | 2013-12-04 | 2022-05-19 | DB Systemtechnik GmbH | Device for guiding a wheel set in the running gear of a rail vehicle |
AT516913A3 (en) * | 2015-02-17 | 2017-12-15 | Siemens Ag Oesterreich | Primary spring for a rail vehicle |
FR3034391B1 (en) * | 2015-04-01 | 2017-03-17 | Sncf Mobilites | SYSTEM FOR DETECTING THE CURVED INPUT OF A RAIL VEHICLE BODY STRUCTURE |
AT518699A1 (en) * | 2016-04-28 | 2017-12-15 | Siemens Ag Oesterreich | Suspension for a rail vehicle |
AT519394B1 (en) * | 2016-11-24 | 2023-01-15 | Siemens Mobility Austria Gmbh | Wheel control arrangement for a landing gear |
GB2579344B (en) * | 2018-11-05 | 2021-04-07 | Bombardier Transp Gmbh | Rail vehicle wheel axle guiding assembly with load-dependent pressurising means |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1273155A (en) * | 1959-11-11 | 1961-10-06 | Maschf Augsburg Nuernberg Ag | Device for entering bogies with one or more axles of railway vehicles in curves |
DE3123858A1 (en) * | 1981-06-16 | 1982-12-30 | Fried. Krupp Gmbh, 4300 Essen | Running gear for a rail vehicle |
FR2530567A1 (en) * | 1982-07-26 | 1984-01-27 | Anf Ind | BOGIE WITH AXLES ORIENTABLE FOR RAILWAY VEHICLES |
JPS59201113A (en) * | 1983-04-28 | 1984-11-14 | Hitachi Ltd | Steering controller for car |
DE3427952A1 (en) * | 1984-07-28 | 1986-01-30 | Gebr. Happich Gmbh, 5600 Wuppertal | SUN VISOR FOR VEHICLES |
-
1989
- 1989-04-10 FR FR8904680A patent/FR2645483B1/en not_active Expired - Fee Related
-
1990
- 1990-04-09 CA CA002014168A patent/CA2014168C/en not_active Expired - Fee Related
- 1990-04-09 EP EP90106743A patent/EP0392414B1/en not_active Expired - Lifetime
- 1990-04-09 ES ES90106743T patent/ES2050865T3/en not_active Expired - Lifetime
- 1990-04-09 AT AT90106743T patent/ATE102135T1/en not_active IP Right Cessation
- 1990-04-09 DK DK90106743.9T patent/DK0392414T3/en active
- 1990-04-09 DE DE69006886T patent/DE69006886T2/en not_active Expired - Fee Related
- 1990-04-10 JP JP2094914A patent/JPH072463B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2645483B1 (en) | 1993-04-30 |
CA2014168C (en) | 1994-07-19 |
JPH02293252A (en) | 1990-12-04 |
ES2050865T3 (en) | 1994-06-01 |
ATE102135T1 (en) | 1994-03-15 |
FR2645483A1 (en) | 1990-10-12 |
EP0392414A3 (en) | 1990-12-05 |
DK0392414T3 (en) | 1994-05-24 |
CA2014168A1 (en) | 1990-10-10 |
DE69006886D1 (en) | 1994-04-07 |
EP0392414A2 (en) | 1990-10-17 |
DE69006886T2 (en) | 1994-06-09 |
JPH072463B2 (en) | 1995-01-18 |
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