EP0501856B1 - Dispositif de freinage d'un essieu d'engin ferroviaire - Google Patents
Dispositif de freinage d'un essieu d'engin ferroviaire Download PDFInfo
- Publication number
- EP0501856B1 EP0501856B1 EP19920400453 EP92400453A EP0501856B1 EP 0501856 B1 EP0501856 B1 EP 0501856B1 EP 19920400453 EP19920400453 EP 19920400453 EP 92400453 A EP92400453 A EP 92400453A EP 0501856 B1 EP0501856 B1 EP 0501856B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- frame
- suspension
- relation
- intermediate support
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/34—Details
- B61H13/38—Suspension of transmitting mechanisms
Definitions
- the invention relates to a braking device of an axle of a railway vehicle such as a wagon whose chassis of the platform directly carries the suspension means of the axle in question or a bogie wagon in which the suspension means of the corresponding axle are then carried by the bogie chassis.
- the braking device consists of a rotor linked in rotation with the axle and in a mechanism immobilized in rotation relative to the axle and, for this purpose, connected to the chassis which carries the suspension of this axle.
- the mechanism comprises facing two opposite zones of the rotor of the jaws provided with brake linings and carried by levers articulated around at least one axis of a support member and reciprocally actuated by at least one jack.
- a braking device is provided at each of the two ends of the axle.
- the rotor is formed on the flanges of the wheel (FR-A-2.215.555) or consists of a disc separately wedged on the axle.
- the invention is similar to a device of this second type.
- the lines consist of substantially vertical rods with the foot and the head crossed by horizontal axes and parallel to the longitudinal axis of the railway vehicle.
- the feet and heads of these rods can be mounted on their axis by means tolerating very little movement of the ball joint.
- the position of the jaws relative to the rotor can first of all vary in height as a function of the load on the chassis but also longitudinally as a function of the play tolerated in this direction.
- One of the results which the invention aims to obtain is a braking device which, although without direct connection of the jaws to the axle by a guide in rotation, ensures a relatively constant longitudinal position of the jaws relative to the rotor.
- Another result that the invention aims to obtain is such a device which, compared to known devices, allows the use of jaws with a larger surface area, therefore less rapid wear and requiring less pressure per unit area.
- Another result which the invention aims to obtain is a braking device which is compatible with suspensions with orientable axles.
- chassis 1 such as that of a wagon or a bogie, to which chassis 1 is associated a suspension 2 of an axle 3.
- Each axle carries two axle boxes 4 provided with ears 5 on each of which the base of at least one spring 6 bears, the head of which is capped by a cap 7.
- connection between the chassis 1 and the caps 7 is ensured by two pairs of connecting rods 8 articulated around axes transverse to the vehicle so that the box 4 has, in a longitudinal direction, a freedom of movement limited for example to the stroke of pushers 9 interposed between the caps and the front and rear faces of the box 4.
- Each braking device 10 comprises a rotor 11 linked in rotation to the axle 3 and a mechanism 12 immobilized in rotation relative to the axle 3 and, for this purpose, connected to the chassis 1 which carries the suspension of the axle in question .
- the mechanism 12 comprises, facing two opposite zones of the rotor 11, two jaws 13 provided with brake linings 14 and carried by levers 15, 16 articulated around at least one axis 17 carried by a support member 18.
- levers 15, 16 are reciprocally actuated by at least one jack 19.
- such a braking device 10 is inserted at each end of the axle 3.
- the rotor 11 is formed on the flange of the wheel or consists of a disc wedged separately in rotation on the said axle.
- the jaws are not directly connected to the axle by a guide in rotation but in known manner the mechanism is relatively positioned with respect to the axle by lines 20 for connection to the chassis 1, which lines consist of substantially vertical rods 21 whose feet and head are crossed by axes 22, 23 horizontal and parallel to the longitudinal axis of the railway vehicle in order to allow a transverse movement of the mechanism relative to the rotor so as to compensate for the movement tolerated by games axial of the axle with respect to the chassis.
- the rotor 11 is a disk and the jaws 13 act on two zones 24 of the opposite radial faces of this disk, which faces each have for this purpose an active zone 24 in the form of a crown limited to the outside by the peripheral edge. 25 of the disc and inside by the external face 26 of the axle.
- the jaws 13 cover only a fraction of this active area 24 and have a periphery, substantially bean-shaped, shaped so that they never extend beyond the outer 25 and inner 26 limits of the active area of the rotor and this despite the deflections of the chassis 1 carrying the mechanism 12 relative to the axle 3 carrying the rotor 11, deflection tolerated by the suspension.
- the part 5 fixed relative to the axle box 4 is constituted by the ear 5 for supporting the base of one of the suspension springs.
- the intermediate support 28 is provided with a projection 39 towards the ground to a level at least sufficient to bring the hinge pin 38 of the pull rod 36 to a suitable height.
- the mechanism benefits from an indirect axle connection, that is to say via the axle box, the traction rod 36 and the support 28 which allows the mechanism to fairly faithfully follow the longitudinal deflections of the axle relative to the chassis.
- the support member 18 is also associated with the intermediate support 28 and this by an articulation 33 of transverse axis to the chassis of the wagon.
- the articulation of the support member is merged with one of the articulations of the rods and the articulations of the rods 29, 30 allow a slight play of ball joint.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9102683 | 1991-03-01 | ||
FR9102683A FR2673414B1 (fr) | 1991-03-01 | 1991-03-01 | Dispositif de freinage d'un essieu d'engin ferroviaire. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0501856A1 EP0501856A1 (fr) | 1992-09-02 |
EP0501856B1 true EP0501856B1 (fr) | 1994-07-20 |
Family
ID=9410404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920400453 Expired - Lifetime EP0501856B1 (fr) | 1991-03-01 | 1992-02-20 | Dispositif de freinage d'un essieu d'engin ferroviaire |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0501856B1 (fi) |
DE (1) | DE69200244T2 (fi) |
FI (1) | FI920922A (fi) |
FR (1) | FR2673414B1 (fi) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19522384A1 (de) * | 1995-06-23 | 1997-01-02 | Knorr Bremse Systeme | Aufhängeeinrichtung für Bremsaggregate von Schienenfahrzeugen |
DE19746443A1 (de) * | 1997-10-21 | 1999-04-22 | Knorr Bremse Systeme | Bremsbackenabstützelement |
DE10135796C1 (de) | 2001-07-23 | 2003-01-23 | Knorr Bremse Systeme | Bremsbackenabstützvorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE356440A (fi) * | 1925-09-09 | |||
US2228818A (en) * | 1938-03-28 | 1941-01-14 | Budd Wheel Co | Brake construction |
DE2609445C3 (de) * | 1976-03-06 | 1979-04-12 | Knorr-Bremse Gmbh, 8000 Muenchen | Scheibenbremseinrichtung für Schienenfahrzeuge |
FR2648193B1 (fr) * | 1989-06-07 | 1994-05-13 | Sab Nife | Procede pour reguler une pression dans un circuit de travail a partir d'une pression de reference, dispositif pour la mise en oeuvre de ce procede, systeme de freinage et systeme limiteur d'effort comportant ce dispositif |
-
1991
- 1991-03-01 FR FR9102683A patent/FR2673414B1/fr not_active Expired - Fee Related
-
1992
- 1992-02-20 EP EP19920400453 patent/EP0501856B1/fr not_active Expired - Lifetime
- 1992-02-20 DE DE1992600244 patent/DE69200244T2/de not_active Expired - Fee Related
- 1992-02-28 FI FI920922A patent/FI920922A/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE69200244T2 (de) | 1994-10-27 |
EP0501856A1 (fr) | 1992-09-02 |
FI920922A (fi) | 1992-09-02 |
FI920922A0 (fi) | 1992-02-28 |
FR2673414A1 (fr) | 1992-09-04 |
DE69200244D1 (de) | 1994-08-25 |
FR2673414B1 (fr) | 1993-06-11 |
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