EP1785331B1 - Track brake for rail vehicles - Google Patents

Track brake for rail vehicles Download PDF

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Publication number
EP1785331B1
EP1785331B1 EP06117470A EP06117470A EP1785331B1 EP 1785331 B1 EP1785331 B1 EP 1785331B1 EP 06117470 A EP06117470 A EP 06117470A EP 06117470 A EP06117470 A EP 06117470A EP 1785331 B1 EP1785331 B1 EP 1785331B1
Authority
EP
European Patent Office
Prior art keywords
brake
segments
rail
track
brake segments
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.)
Not-in-force
Application number
EP06117470A
Other languages
German (de)
French (fr)
Other versions
EP1785331A3 (en
EP1785331A2 (en
Inventor
Günter Meuters
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.)
SONA BLW PRAEZISIONSSCHMIEDE GmbH
Original Assignee
SONA BLW PRAEZISIONSSCHMIEDE GmbH
SONA BLW PRAEZ SCHMIEDE GmbH
Sona BLW Prazisionsschmiede 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
Application filed by SONA BLW PRAEZISIONSSCHMIEDE GmbH, SONA BLW PRAEZ SCHMIEDE GmbH, Sona BLW Prazisionsschmiede GmbH filed Critical SONA BLW PRAEZISIONSSCHMIEDE GmbH
Publication of EP1785331A2 publication Critical patent/EP1785331A2/en
Publication of EP1785331A3 publication Critical patent/EP1785331A3/en
Application granted granted Critical
Publication of EP1785331B1 publication Critical patent/EP1785331B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/02—Track brakes or retarding apparatus
    • B61K7/04—Track brakes or retarding apparatus with clamping action

Definitions

  • the invention relates to a track brake for rail vehicles with at least one distributed over the length arranged brake segments populated brake beam, which can be pressed with the braking surfaces of its brake segments laterally to a flank of the rail wheel.
  • Track brakes of this type are known see eg GB-A-1 482 999 , They can be arranged on one or both sides of the track.
  • the pressure acting on the brake bar pressing force can be done mechanically by rubber spring packages or by hydraulic or pneumatic cylinder.
  • it is a well-known phenomenon that caused by mechanical friction between the brake beam and the edge of the rail wheel squeaking noise, which are perceived by nearby people as disturbing.
  • brake segments of a length between 0.4 and 1.2 m are provided in the known track brake with a small distance from each other, which are fastened with damping intermediate layers on the brake beam.
  • the brake segments are no longer made of steel, but are manufactured as a cast segment of nodular graphite.
  • the reduction of screeching noise achieved with such a track brake is not perceived as sufficient.
  • the invention has for its object to provide a rail brake for rail vehicles with improved damping of the squeaking noise generated during braking.
  • This object is achieved in a track brake of the type mentioned above in that the braking surfaces of the successive in the direction of travel brake segments are arranged at different heights.
  • the brake segments as known per se, interchangeable mounted on the brake beam. So they can be replaced after wear.
  • the brake segments are formed by the same bases and associated and arranged at different heights straps on which the braking surfaces are formed.
  • various brake segments can be easily fastened by bolts, since an arrangement of holes in different heights is not required. This is also advantageous for the conversion and retrofitting.
  • a damping insert can be provided between the brake segments and the brake beam.
  • FIG. 1 is on a threshold 1 of a track bed 2, a rail 3 attached. On the rail 3 runs a rail wheel 4, against whose flank 4 a, a brake bar 5 a track brake is pressed.
  • the known pressing means are not shown here.
  • FIGS. 2 to 5 show, made of a cast or rolled steel U-profile brake beam 6 with a plurality of distributed over its length arranged brake segments 7, 8, 9, 10, 11, 12 equipped.
  • the brake segments 7 to 12 are bolted to the brake beam 6 using an intermediate layer 13 of damping material by means of bolts 14, 15.
  • Each brake segment 7 - 12 is a forged or cast molded body made of steel or preferably a cast body made of nodular graphite. It is formed by a gleichformatigen base 7 a, 9 a and a so integrally connected raised carrier 7 b, 9 b, on which a braking surface 7 c, 9 c is formed.
  • the carrier 7 b of the brake segments 7, 8, 11, 12 are set high in the first type
  • the carrier 9 b in the second type of brake segments 9, 10 set lower.
  • the length of each successively arranged at the same height segments is 0.5 to 1.5 m.
  • the height displacement of the elements is approximately equal to their width and is 40 to 60 mm.

Abstract

Rail brake has a brake bar (6) equipped with brake segments (7-12) whereby brake surfaces of the brake segments are arranged at different heights. The braking segments fastened on the braking bar can be interchanged. The brake segments arranged on same height have a length of 0.5 to 1.5 m.

Description

Die Erfindung betrifft eine Gleisbremse für Schienenfahrzeuge mit mindestens einem mit über die Länge verteilt angeordneten Bremssegmenten bestückten Bremsbalken, der mit den Bremsflächen seiner Bremssegmente seitlich an eine Flanke des Schienenrades gedrückt werden kann.The invention relates to a track brake for rail vehicles with at least one distributed over the length arranged brake segments populated brake beam, which can be pressed with the braking surfaces of its brake segments laterally to a flank of the rail wheel.

Gleisbremsen dieser Art sind bekannt siehe z.B. GB-A-1 482 999 . Sie können auf einer oder beiden Seiten des Fahrgleises angeordnet sein. Die auf die Bremsbalken einwirkende Andrückkraft kann mechanisch durch Gummifederpakete oder durch Hydraulik- oder Pneumatikzylinder erfolgen. Beim Betrieb solcher Gleisbremsen ist es eine allgemein bekannte Erscheinung, dass durch mechanische Reibung zwischen dem Bremsbalken und der Flanke des Schienenrades Kreischgeräusche entstehen, die von in der Nähe befindlichen Personen als störend empfunden werden. Um den Kreischgeräuschen entgegen zu wirken, sind bei der bekannten Gleisbremse mit geringem Abstand voneinander angeordnete Bremssegmente mit einer Länge zwischen 0,4 und 1,2 m vorgesehen, die mit dämpfenden Zwischenlagen auf dem Bremsbalken befestigt sind. Ausserdem bestehen die Bremssegmente nicht mehr aus Stahl, sondern sind als Gusssegment aus Kugelgraphit hergestellt. Die mit einer solchen Gleisbremse erzielte Verminderung der Kreischgeräusche wird allerdings als noch nicht ausreichend empfunden.Track brakes of this type are known see eg GB-A-1 482 999 , They can be arranged on one or both sides of the track. The pressure acting on the brake bar pressing force can be done mechanically by rubber spring packages or by hydraulic or pneumatic cylinder. In the operation of such rail brakes, it is a well-known phenomenon that caused by mechanical friction between the brake beam and the edge of the rail wheel squeaking noise, which are perceived by nearby people as disturbing. In order to counteract the shriek noises, brake segments of a length between 0.4 and 1.2 m are provided in the known track brake with a small distance from each other, which are fastened with damping intermediate layers on the brake beam. In addition, the brake segments are no longer made of steel, but are manufactured as a cast segment of nodular graphite. However, the reduction of screeching noise achieved with such a track brake is not perceived as sufficient.

Der Erfindung liegt die Aufgabe zugrunde, eine Gleisbremse für Schienenfahrzeuge mit verbesserter Dämpfung der beim Bremsen entstehenden Kreischgeräusche zu schaffen.The invention has for its object to provide a rail brake for rail vehicles with improved damping of the squeaking noise generated during braking.

Diese Aufgabe wird bei einer Gleisbremse der eingangs genannten Art dadurch gelöst, dass die Bremsflächen der in Fahrtrichtung hintereinander liegenden Bremssegmente in unterschiedlicher Höhe angeordnet sind.This object is achieved in a track brake of the type mentioned above in that the braking surfaces of the successive in the direction of travel brake segments are arranged at different heights.

Bei einer solchen Gleisbremse wird zwar nach wie vor das Schienenrad zu die Kreischgeräusche verursachenden Schwingungen angeregt, doch im Unterschied zum Stand der Technik findet die Anregung im Wechsel an unterschiedlichen Höhen der Radflanke statt. Die jeweilige Anregezeit an unterschiedlich hohen Orten des Rades ist jedoch zu kurz, dass das Rad sich einschwingen kann. Die jeweils angeregte Schwingung wird nämlich nach kurzer Anregezeit durch veränderte Anregebedingungen (Bremsfläche in veränderter Höhenlage) gestört.In such a track brake while still the track wheel is excited to the screeching vibrations causing, but in contrast to the prior art, the excitation takes place alternately at different heights of the wheel flank. However, the respective excitation time at different high places of the wheel is too short that the wheel can settle. The respectively excited vibration is disturbed after a short excitation time by changing excitation conditions (braking surface in a different altitude).

Nach einer Ausgestaltung der Erfindung sind die Bremssegmente, wie an sich bekannt, auswechselbar auf dem Bremsbalken befestigt. So können sie nach Verschleiß ausgetauscht werden.According to one embodiment of the invention, the brake segments, as known per se, interchangeable mounted on the brake beam. So they can be replaced after wear.

Untersuchungen haben gezeigt, dass gute Ergebnisse bei der Geräuschdämpfung vor allem dann erzielt werden, wenn die auf gleicher Höhe angeordneten Bremssegmente jeweils eine Länge von 0,5 bis 1,5 m haben. Bei der im Ausführungsbeispiel gewählten Anordnung wechselt die Höhenversetzung nach jeweils 2 Bremsegmenten. Auch trägt zur guten Geräuschdämpfung bei, wenn die Höhenversetzung der in unterschiedlicher Höhe angeordneten Bremssegmente 40 bis 60 mm beträgt.Investigations have shown that good results in noise damping are achieved above all when the brake segments arranged at the same height each have a length of 0.5 to 1.5 m. In the arrangement chosen in the embodiment, the height displacement changes after every 2 brake segments. Also contributes to good noise reduction when the height displacement the arranged at different heights brake segments 40 to 60 mm.

Aus konstruktiven Gründen, aber auch aus Gründen der Nachrüstung von Gleisbremsen nach dem Stand der Technik ist von Vorteil, wenn die Bremssegmente von gleichen Sockeln und damit verbundenen und in unterschiedlicher Höhe angeordneten Trägern gebildet sind, auf denen die Bremsflächen ausgebildet sind. So lassen sich verschiedenartige Bremssegmente durch Schraubenbolzen leicht befestigen, da eine Anordnung von Bohrungen in unterschiedlicher Höhe nicht erforderlich ist. Dies ist auch für die Um- und Nachrüstung von Vorteil.For structural reasons, but also for reasons of retrofitting track brakes according to the prior art is advantageous if the brake segments are formed by the same bases and associated and arranged at different heights straps on which the braking surfaces are formed. Thus, various brake segments can be easily fastened by bolts, since an arrangement of holes in different heights is not required. This is also advantageous for the conversion and retrofitting.

Wie an sich bekannt, kann zwischen den Bremssegmenten und dem Bremsbalken eine Dämpfungseinlage vorgesehen sein.As is known per se, a damping insert can be provided between the brake segments and the brake beam.

Im Folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Im einzelnen zeigen

Figur 1
eine Gleisbremse mit einem Bremsbalken an einem auf einer Schiene laufenden Schienenrad in schematischer Darstellung im Vertikalschnitt,
Figur 2
einen Bremsbalken in Aufsicht,
Figur 3
den Bremsbalken gemäß Figur 2 in Seitenansicht,
Figur 4
den Bremsbalken gemäß Figur 2 und 3 im Halbschnitt nach Linie A-A der Figur 3 in vergrößerter Darstellung und
Figur 5
den Bremsbalken gemäß Figur 2 und 3 im Halbschnitt nach Linie B-B der Figur 3 in vergrößerter Darstellung.
In the following the invention will be explained in more detail with reference to a drawing illustrating an embodiment. Show in detail
FIG. 1
a track brake with a brake bar on a rail wheel running on a rail in a schematic representation in vertical section,
FIG. 2
a brake bar in supervision,
FIG. 3
according to the brake beam FIG. 2 in side view,
FIG. 4
according to the brake beam FIGS. 2 and 3 in half section after line AA the FIG. 3 in an enlarged view and
FIG. 5
according to the brake beam FIGS. 2 and 3 in half section to line BB of FIG. 3 in an enlarged view.

Gemäß Figur 1 ist auf einer Schwelle 1 eines Gleisbettes 2 eine Schiene 3 befestigt. Auf der Schiene 3 läuft ein Schienenrad 4, gegen dessen eine Flanke 4 a ein Bremsbalken 5 einer Gleisbremse gedrückt wird. Die an sich bekannten Andrückmittel sind hier nicht dargestellt.According to FIG. 1 is on a threshold 1 of a track bed 2, a rail 3 attached. On the rail 3 runs a rail wheel 4, against whose flank 4 a, a brake bar 5 a track brake is pressed. The known pressing means are not shown here.

Wie die Figuren 2 bis 5 zeigen, ist der aus einem gegossenem oder gewalztem U-Profil aus Stahl hergestellte Bremsbalken 6 mit einer Vielzahl von über seine Länge verteilt angeordneten Bremssegmenten 7, 8, 9, 10, 11, 12 bestückt. Die Bremssegmente 7 bis 12 sind unter Verwendung einer Zwischenlage 13 aus dämpfendem Material mittels Schraubenbolzen 14, 15 am Bremsbalken 6 angeschraubt. Jedes Bremssegment 7 - 12 ist ein geschmiedeter oder gegossener Formkörper aus Stahl bzw. vorzugsweise ein Gusskörper aus Kugelgraphit. Er wird von einem gleichformatigen Sockel 7 a, 9 a und einem damit integral verbundenen erhabenen Träger 7 b, 9 b gebildet, auf dem eine Bremsfläche 7 c, 9 c ausgebildet ist. Während die Träger 7 b der Bremssegmente 7, 8, 11, 12 beim ersten Typ hoch gesetzt sind, sind die Träger 9 b beim zweiten Typ der Bremssegmente 9, 10 tiefer gesetzt. Die Länge der jeweils hintereinander auf gleicher Höhe angeordneten Segmente beträgt 0,5 bis 1,5 m. Die Höhenversetzung der Elemente ist etwa gleich ihrer Breite und beträgt 40 bis 60 mm.As the FIGS. 2 to 5 show, made of a cast or rolled steel U-profile brake beam 6 with a plurality of distributed over its length arranged brake segments 7, 8, 9, 10, 11, 12 equipped. The brake segments 7 to 12 are bolted to the brake beam 6 using an intermediate layer 13 of damping material by means of bolts 14, 15. Each brake segment 7 - 12 is a forged or cast molded body made of steel or preferably a cast body made of nodular graphite. It is formed by a gleichformatigen base 7 a, 9 a and a so integrally connected raised carrier 7 b, 9 b, on which a braking surface 7 c, 9 c is formed. While the carrier 7 b of the brake segments 7, 8, 11, 12 are set high in the first type, the carrier 9 b in the second type of brake segments 9, 10 set lower. The length of each successively arranged at the same height segments is 0.5 to 1.5 m. The height displacement of the elements is approximately equal to their width and is 40 to 60 mm.

Claims (5)

  1. A rail brake for rail vehicles with at least one brake beam (6) that is equipped with longitudinally distributed brake segments (7-12) and can be laterally pressed against a flank (4 a) of the rail wheel (4) with the braking surfaces (7 c, 9 c) of its brake segments (7-12), characterized in that the braking surfaces (7 c, 9 c) of the brake segments (7-12) are arranged at a different height.
  2. The rail brake according to Claim 1, characterized in that the brake segments (7-12) are fixed on the brake beam (6) in an exchangeable fashion.
  3. The rail brake according to Claim 1 or 2, characterized in that the brake segments (7, 8, 9, 10, 11, 12) that are respectively arranged at the same height have a length between 0.5 and 1.5 m.
  4. The rail brake according to Claim 1, characterized in that the height offset of the brake segments (7-12) that are arranged at a different height lies between 40 and 60 mm.
  5. The rail brake according to Claim 1, characterized in that the brake segments (7-12) are composed of bases (7 a, 9 a) of identical format and carriers (7 b, 9 b) that are connected thereto and arranged at a different height, wherein the braking surfaces (7 c, 9 c) are realized on said carriers.
EP06117470A 2005-11-15 2006-07-19 Track brake for rail vehicles Not-in-force EP1785331B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005054832A DE102005054832B3 (en) 2005-11-15 2005-11-15 Rail brake for rail vehicles

Publications (3)

Publication Number Publication Date
EP1785331A2 EP1785331A2 (en) 2007-05-16
EP1785331A3 EP1785331A3 (en) 2008-07-09
EP1785331B1 true EP1785331B1 (en) 2009-09-09

Family

ID=37772851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06117470A Not-in-force EP1785331B1 (en) 2005-11-15 2006-07-19 Track brake for rail vehicles

Country Status (3)

Country Link
EP (1) EP1785331B1 (en)
AT (1) ATE442284T1 (en)
DE (2) DE102005054832B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011110091U1 (en) * 2011-10-07 2012-11-22 Sona Blw Präzisionsschmiede Gmbh Rail brake for rail vehicles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906359A (en) * 1929-09-09 1933-05-02 American Steel Foundries Brake mechanism
US3209865A (en) * 1962-01-22 1965-10-05 Gen Signal Corp Car retarding system
GB1482999A (en) * 1973-12-15 1977-08-17 Thyssen Huette Ag Brake beams for beam-type rail brakes
CH608216A5 (en) * 1976-08-16 1978-12-29 Huber+Suhner Ag Braking device with retarder beam
CH634514A5 (en) * 1978-11-16 1983-02-15 Schweizerische Bundesbahnen BEAM TRACK BRAKE.
DE3736580A1 (en) * 1987-10-29 1989-05-18 Thyssen Ind Ag Umformtechnik BEAM TRACK BRAKE FOR BRAKING RAILWAYS
DE3930332C2 (en) * 1989-09-11 1997-08-14 Siemens Ag Brake beam for bar track brakes with segmented wear elements
DE19921649C2 (en) * 1999-05-10 2003-11-20 Db Netz Ag Braking device for railway vehicles with a guide surface on the outer brake beam

Also Published As

Publication number Publication date
EP1785331A3 (en) 2008-07-09
DE502006004783D1 (en) 2009-10-22
DE102005054832B3 (en) 2007-08-23
EP1785331A2 (en) 2007-05-16
ATE442284T1 (en) 2009-09-15

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