EP1492927B1 - Damping means for rails - Google Patents

Damping means for rails Download PDF

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Publication number
EP1492927B1
EP1492927B1 EP03720264A EP03720264A EP1492927B1 EP 1492927 B1 EP1492927 B1 EP 1492927B1 EP 03720264 A EP03720264 A EP 03720264A EP 03720264 A EP03720264 A EP 03720264A EP 1492927 B1 EP1492927 B1 EP 1492927B1
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EP
European Patent Office
Prior art keywords
rail
damping means
rails
metal
web
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EP03720264A
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German (de)
French (fr)
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EP1492927A1 (en
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Udo Wirthwein
Otto Kaulbersch
Dirk VORDERBRÜCK
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Wirthwein AG
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Wirthwein AG
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

Definitions

  • the invention relates to a rail with damping means using a Kammer hypolligens.
  • the font EP-A-0 404 756 discloses a ballastless superstructure, with rails for rail-bound traffic, which are detachably connected to carriers, which have at least two rails, each on either side of the rail web, optionally up to the rail head and optionally to the rail foot reaching Schalldämpf issued abutting the rail and the sound damping device is formed with a coating which is adhesively held on the rail, at least substantially completely covers the rail web and rail foot and the coating comprises particles bound with a binder, in particular with a grain size of 2 mm to 8 mm and optionally with fibers, z. As glass fibers, is constructed.
  • the coating consists of particles bound with a binder, such as crushed stone, split, or the like
  • a further inhibition of the sound conduction is already predetermined in the coating, since the particles and the binder conduct the sound differently, so that they adhere to the respective interfaces Reflections of the sound waves comes, whereby the delivery of sound to the air and thus the annoyance by sound can be substantially reduced.
  • the damping means consists of a solid body, a plastic layer and a metal sheet or a concrete body or a combination of anything, wherein the body is the rail between joining a flowable intermediate layer, which consists of a liquid or pasty or a jelly-like mass or a kneadable solid material which is coupled to rail.
  • the damping means by a resilient Element, a clamping bracket on one or both sides coupled to the rail web.
  • Such damping means should be used to dampen the sound vibrations generated by passing over the rails to dampen the noise caused by these vibrations.
  • the EP document 0 150 264 is based on a prior art according to the document DE 1 784 171 A1 which describes rails that are glued to metal cover sheets, with the interposition of no appreciable changes in shape suffering plastics. These damping plates have a good sound-absorbing effect.
  • a disadvantage is the bonding of the plastic to the rail web or the rail or the rail head, because often welding work on rails are required to produce either the emergence of toxic fumes of the gassing of the adhesive or loosen the bond again.
  • the EP document also refers to a German patent application DE 31 47 387 A1 Reference is made, is proposed in the corresponding damping plates, so coated with plastic metal sheets, with the aid of springs to the rail.
  • the desired damping effect which occurs by the fact that there is a molecular shift in the plastic, whereby the sound-emitting kinetic energy is destroyed, can therefore only partially affect, because the coupling is not sufficient and only selectively.
  • a plastic composed of a thermosetting resin in the form of a 2-component material based on a filled synthetic resin, such as polyester resins, polyurethane resins or ethoxyline resins serves as an adhesive. It is found there that the hard plastic, unlike other plastics, such as rubber, which destroy the sound by flexing, a significant improvement in the noise attenuation testifies, since he is constrained by the bond between the metal sheet and the rail bridge and so on Shear is claimed. This type of damping means virtually over the conventional, by bending claimed Entdröhnungsbervers Doubling of effectiveness, although only very thin sheets with thicknesses of less than one millimeter were used.
  • the EP document further discloses that it is possible to use such damping means, vibration and sound absorbers, which operate in a known manner according to the absorber or reflection principle. It is further stated that the damping means could also be rigidly attached to the rail, in which way parts of concrete and parts made of steel could be coupled particularly easily. This is due to the formation of the damping means, which could be additive to the metal sheet of a concrete body, which is to be poured liquid into a correspondingly shaped metal shell. Instead of the plastic and the metal sheet, a mold for concrete can be coupled to the rail, into which liquid concrete is then poured.
  • a flowable element such as a liquid-soaked elastic foam or a water-filled gap or other pasty, jelly-like, kneadable substances as a flowable mass between the concrete and / or the plastic-coated Sheet metal are arranged towards the rail.
  • Kammer hypoxia that find everywhere in a tab or rail chamber as a damping means and / or insulation, so as absorber and / or reflection means application, for example, bitumen or other adhesive to the web or on the Rail head and / or the rail foot can be coupled.
  • the invention is based on the problem to propose an improved solution for rails of a railway with damping means.
  • the plastic is to be subjected to shear, so that by frictional energy, the vibration energy is absorbed in the rails.
  • this is possible only with the help of the metal sheet or the coupled concrete masses whose inertia is utilized relative to the faster vibrated plastic.
  • a homogeneous body is coupled to the rail according to the invention, which is produced by extrusion or injection molding in lengths of 200 - 2000 mm separately and consists essentially of a thermoplastic, which is filled with metal components.
  • thermoplastics the substances polyethylene or polypropylene have been found to be favorable.
  • a metal component is then introduced into a mold before extrusion or injection molding or pressing, preferably a pure ore of hematite or magnetite or mixtures of the two in the smallest possible granular form, the extrusion or injection molding process do not hinder.
  • the metal components are completely enclosed by the thermoplastics, so that after the process a completely homogeneous body with a plastic surface is present.
  • the hematite portions or magnetite portions or mixtures of these will have a volume fraction of the body of 35-70%, which leads to a specific weight after
  • the attempts of the inventor should be between 2.5-3.9 g / cm 3 , but preferably 2.9-3.5 g / cm 3 . This is a compromise in the amount of metal components to be added because of the good processability e.g. B. in an extrusion machine with a corresponding shape, which is tailored to the cross section of the tab chamber.
  • a body produced in this way in particular a chamber filling body substantially filling the chamber with the cross-sectional dimensions of the tab chamber of the rails in the from the EP 0 150 264 A1 known manner with the aid of a flowable intermediate layer and / or a metal clip to the web of the rail and / or the rail head and / or the rail foot can be coupled.
  • Grooved rails are often used on road sections, while Vignol rails are used on the open road. Accordingly, the tab chambers are designed differently and arranged the fasteners on the substructure.
  • Vignole rails are usually laid on sleepers, while tram tracks with grooved rails are often laid with spacers, the tie rods, on longitudinal foundations. Accordingly, a Kammerhellmaschine must optionally be designed differently, so that it is integrated into the attachment of the rail substructure or granted at these points a space to fix the attachment.
  • a rail 1 shown here in a top view, has a rail head 2, a rail web 3 and a rail foot 4, between the rail head and rail foot results along the rail web a tab chamber or rail chamber.
  • FIG. 1 is a damping means in the form of a chamber fully filling chamber filler 5 shown on both sides of the rail web 3.
  • the chamber filling body is coupled by means of an adhesive layer 6, which is shown here, as a gap between the rail head 2, rail web 3 and rail 4 and 4 Grillfeldll stresses full filling.
  • an adhesion or an adhesive gap can only occur on the rail web or on the rail, because rail web and rail, which are parts of the rail, which emit the most disturbing vibrations due to their small size.
  • the Kammer spall analyses is shown here so that the finely divided ores are visible, however, the Kammer spallianu is designed so that it feels to the outside, as a plastic body, but has a very high weight and the metal parts, more precisely Hämatit- or Magnetitmaschine neither tangibly still recognizable as such.
  • a rail can be as well known, prepared and so then or already factory equipped with such a chamber filler.
  • the person skilled in the art can also cover the chamber filling body 5 with another layer of plastic between the adhesive layer and the chamber filling body if he wishes to achieve a different setting of the softness of the surface.
  • FIG. 2 shows in a similar way as FIG. 1 arranged chamber filling 5, but in this case have a recess 51. Between the two recesses 51, a metal bracket 7, which fix the Kammer Stahlllianu 5 in position on the rail web 3 extends.
  • This construction can be used in addition to an adhesive layer 6 in order to increase the pressure of the Kammer Stahlll stressess on the rail web, or to improve the coupling of the Kammer Stahlll stressess to the rail web 3.
  • it may also be coated instead of an adhesive layer 6 of the chamber filler with a plastic layer, which then fills the here occupied by the adhesive joint, especially if the rail has significant rolling tolerances that increase the coupling by positive engagement slightly.
  • brackets shown here of course, other types of brackets can be used.
  • the Kammer hypoxia is made in the necessary local lengths; this can be greater distances of about 1 m in the open road in a tram that has no rail foot mounting of the usual type, while otherwise the length of the chamber filler is to be adapted to the rail fastening in its length and shape.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Fluid-Damping Devices (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a damping means for damping acoustic vibrations on rails. This damping means is, in particular, a body made of plastics and ferrous materials. The damping means is characterized by a chamber filling body, which consists of a thermoplastic and of metal constituents finely dispersed therein and is produced by extrusion or injection molding, whereby the density of the body is >2.4 g/cm<SUP>3</SUP>.

Description

Die Erfindung betrifft eine Schiene mit Dämpfungsmitteln unter Verwendung eines Kammerfüllkörpers.
Die Schrift EP-A-0 404 756 offenbart einen schotterlosen Oberbau, mit Schienen für schienengebundenen Verkehr, die lösbar mit Trägern verbunden sind, welche zumindest zwei Schienen aufweisen, die beidseits des Schienensteges jeweils eine, gegebenenfalls bis zum Schienenkopf und gegebenenfalls bis zum Schienenfuß reichende Schalldämpfeinrichtung aufweist, die an der Schiene anliegen und die Schalldämpfeinrichtung mit einer Beschichtung gebildet ist, die an der Schiene adhäsiv gehalten ist, den Schienensteg und Schienenfuß zumindest im Wesentlichen zur Gänze bedeckt und die Beschichtung mit einem Bindemittel gebundene Teilchen, insbesondere mit einer Korngröße von 2 mm bis 8 mm und gegebenenfalls mit Fasern, z. B. Glasfasern, aufgebaut ist. Besteht die Beschichtung mit mit einem Bindemittel gebundenen Teilchen wie Schotter, Split, od. dgl., so ist bereits in der Beschichtung eine weitere Hemmung der Schalleitung vorgegeben, da die Teilchen und das Bindemittel unterschiedlich den Schall leiten, sodass es an den jeweiligen Grenzflächen zu Reflexionen der Schallwellen kommt, womit die Abgabe des Schalls an die Luft und damit die Belästigung durch Schall wesentlich verringert werden kann. The invention relates to a rail with damping means using a Kammerfüllkörpers.
The font EP-A-0 404 756 discloses a ballastless superstructure, with rails for rail-bound traffic, which are detachably connected to carriers, which have at least two rails, each on either side of the rail web, optionally up to the rail head and optionally to the rail foot reaching Schalldämpfeinrichtung abutting the rail and the sound damping device is formed with a coating which is adhesively held on the rail, at least substantially completely covers the rail web and rail foot and the coating comprises particles bound with a binder, in particular with a grain size of 2 mm to 8 mm and optionally with fibers, z. As glass fibers, is constructed. If the coating consists of particles bound with a binder, such as crushed stone, split, or the like, a further inhibition of the sound conduction is already predetermined in the coating, since the particles and the binder conduct the sound differently, so that they adhere to the respective interfaces Reflections of the sound waves comes, whereby the delivery of sound to the air and thus the annoyance by sound can be substantially reduced.

Aus der EP 0 150 264 ist eine Schiene mit Dämpfungsmittel zum Dämpfen von Schallschwingungen bekannt, bei der das Dämpfungsmittel an der Schiene federnd oder starr befestigt ist. Das Dämpfungsmittel besteht aus einem festen Körper, einer Kunststoffschicht und einem Metallblech oder einem Betonkörper oder einer Kombination aus allem, wobei der Körper die Schiene zwischen Fügung einer dauerfließfähigen Zwischenschicht, die aus einer Flüssigkeit oder einer pastösen oder einer geleeartigen Masse oder einem knetbaren festen Stoff besteht, die Schiene gekoppelt ist. Ergänzend kann das Dämpfungsmittel durch ein federndes Element, einem Spannbügel einseitig oder beidseitig an den Schienensteg gekoppelt sein.From the EP 0 150 264 is a rail with damping means for damping sound vibrations, in which the damping means is fixed to the rail resiliently or rigidly. The damping means consists of a solid body, a plastic layer and a metal sheet or a concrete body or a combination of anything, wherein the body is the rail between joining a flowable intermediate layer, which consists of a liquid or pasty or a jelly-like mass or a kneadable solid material which is coupled to rail. In addition, the damping means by a resilient Element, a clamping bracket on one or both sides coupled to the rail web.

Derartige Dämpfungsmittel sollen zum Dämpfen der durch Überfahren der Schienen erzeugten Schallschwingungen verwendet werden um den Lärm zu dämpfen, der durch diese Schwingungen entsteht.Such damping means should be used to dampen the sound vibrations generated by passing over the rails to dampen the noise caused by these vibrations.

Das EP-Dokument 0 150 264 geht von einem Stand der Technik gemäß der Druckschrift DE 1 784 171 A1 aus, welche Schienen beschreibt, die mit Metalldeckblechen verklebt sind, unter Zwischenschaltung von keine nennenswerten Formänderungen erleidenden Kunststoffen. Diese Dämpfungsplatten haben eine gute schalldämpfende Wirkung. Nachteilig sei das Verkleben des Kunststoffes mit dem Schienensteg bzw. dem Schienenfuß oder dem Schienenkopf, weil häufig Schweißarbeiten an Schienen erforderlich sind, die entweder ein Entstehen giftiger Dämpfe der Ausgasungsprodukte des Klebers produzieren oder die Klebung wieder lösen.The EP document 0 150 264 is based on a prior art according to the document DE 1 784 171 A1 which describes rails that are glued to metal cover sheets, with the interposition of no appreciable changes in shape suffering plastics. These damping plates have a good sound-absorbing effect. A disadvantage is the bonding of the plastic to the rail web or the rail or the rail head, because often welding work on rails are required to produce either the emergence of toxic fumes of the gassing of the adhesive or loosen the bond again.

In dem EP-Dokument wird ebenso auf eine deutsche Offenlegungsschrift DE 31 47 387 A1 Bezug genommen, in der vorgeschlagen wird, entsprechende Dämpfungsplatten, also mit Kunststoff beschichtete Metallbleche, mit Hilfe von Federn an die Schiene anzudrücken. Der erwünschte Dämpfungseffekt, der dadurch eintritt, dass es im Kunststoff zu einer Molekülverschiebung kommt, wodurch die schallabstrahlende Bewegungsenergie vernichtet wird, kann sich deshalb nur zum Teil auswirken, weil die Ankopplung nicht ausreichend und nur punktuell sei.The EP document also refers to a German patent application DE 31 47 387 A1 Reference is made, is proposed in the corresponding damping plates, so coated with plastic metal sheets, with the aid of springs to the rail. The desired damping effect, which occurs by the fact that there is a molecular shift in the plastic, whereby the sound-emitting kinetic energy is destroyed, can therefore only partially affect, because the coupling is not sufficient and only selectively.

Im Fall der Druckschrift DE 1 784 171 A1 werden Metallplatten an eine Schiene geklebt. Ein Kunststoff, der aus einem Duroplast in Form eines 2-Komponenten-Materials auf der Basis eines gefüllten Kunstharzes, wie zum Beispiel Polyesterharze, Polyurethanharze oder Äthoxylinharze, dient als Kleber. Es wird dort festgestellt, dass der harte Kunststoff im Gegensatz zu anderen Kunststoffen, wie zum Beispiel Gummi, die den Schall durch Walkarbeit vernichten, eine wesentliche Verbesserung der Geräuschdämpfung zeugt, da er durch die Verklebung zwischen dem Metallblech und dem Schienensteg eingezwängt ist und so auf Schub beansprucht werde. Diese Art der Dämpfung bedeute gegenüber der herkömmlichen, allein durch Biegung beanspruchten Entdröhnungsüberzüge praktisch eine Verdopplung der Wirksamkeit, obwohl nur sehr dünne Bleche mit Stärken von unter einem Millimeter verwendet worden seien.In the case of the publication DE 1 784 171 A1 Metal plates are glued to a rail. A plastic composed of a thermosetting resin in the form of a 2-component material based on a filled synthetic resin, such as polyester resins, polyurethane resins or ethoxyline resins serves as an adhesive. It is found there that the hard plastic, unlike other plastics, such as rubber, which destroy the sound by flexing, a significant improvement in the noise attenuation testifies, since he is constrained by the bond between the metal sheet and the rail bridge and so on Shear is claimed. This type of damping means virtually over the conventional, by bending claimed Entdröhnungsberzüge Doubling of effectiveness, although only very thin sheets with thicknesses of less than one millimeter were used.

In der Druckschrift DE 31 47 387 ist die verwendete Art des Kunststoffes nicht offenbart. In dieser Schrift werden federnde Metallklammern verwendet, die sowieso für die Schienenbefestigung Verwendung finden und speziell geformt sind, um im Bereich der Schienenbefestigung auch das mit Kunststoff beschichtete Blech an den Schienensteg sowie den Schienenkopf und den Schienenfuß zu drücken. Dem gegenüber ist in der EP 0 150 264 eine Metallklammer offenbart, die den Schienenfuß umgreift und dabei insgesamt etwa C-förmig geformt ist und beidseitig des Schienensteges Metallbleche mit Kunststoffschicht an den Steg sowie den Schienenfuß und den Schienenkopf koppelt, bei entsprechender Formung des Metallbleches und des Kunststoffteiles.In the publication DE 31 47 387 the type of plastic used is not disclosed. In this document, resilient metal brackets are used, which are anyway used for rail fastening and are specially shaped to press in the rail fastening and the plastic coated sheet metal to the rail web and the rail head and the rail. The opposite is in the EP 0 150 264 discloses a metal clip which engages around the rail and thereby is a total of approximately C-shaped and coupled on both sides of the rail web metal sheets with plastic layer to the web and the rail and the rail head, with appropriate shaping of the metal sheet and the plastic part.

In der EP-Schrift wird weiterhin offenbart, dass man die derartigen Dämpfungsmittel, Schwingungs- und Schallabsorber anwenden könne, die in bekannter Weise nach dem Absorber- oder auch Reflexionsprinzip arbeite. Es ist weiterhin angegeben, dass das Dämpfungsmittel auch starr an der Schiene befestigt sein könne, wobei auf diese Weise besonders leicht Teile aus Beton und Teile aus Stahl ankoppelbar seien. Dies beruhe auf der Ausbildung des Dämpfungsmittels, das additiv zu dem Metallblech aus einem Betonkörper bestehen könne, der flüssig in eine entsprechend geformte Metallschale eingegossen werden soll. Anstelle des Kunststoffes und des Metallbleches kann eine Form für Beton an die Schiene gekoppelt werden kann, in die dann flüssiger Beton gegossen wird. In diesen Fällen ist jeweils dafür Sorge zu tragen, dass ein dauerfließfähiges Element, wie zum Beispiel ein mit einer Flüssigkeit getränkter elastischer Schaumstoff oder ein mit Wasser gefüllter Spalt oder andere pastöse, geleeartige, knetbare Stoffe als dauerfließfähige Masse zwischen dem Beton und/oder dem kunststoffbeschichteten Metallblech zur Schiene hin geordnet sind.The EP document further discloses that it is possible to use such damping means, vibration and sound absorbers, which operate in a known manner according to the absorber or reflection principle. It is further stated that the damping means could also be rigidly attached to the rail, in which way parts of concrete and parts made of steel could be coupled particularly easily. This is due to the formation of the damping means, which could be additive to the metal sheet of a concrete body, which is to be poured liquid into a correspondingly shaped metal shell. Instead of the plastic and the metal sheet, a mold for concrete can be coupled to the rail, into which liquid concrete is then poured. In these cases, care must be taken in each case that a flowable element, such as a liquid-soaked elastic foam or a water-filled gap or other pasty, jelly-like, kneadable substances as a flowable mass between the concrete and / or the plastic-coated Sheet metal are arranged towards the rail.

Aus der Praxis ist allgemein bekannt, dass Kammerfüllkörper, die in einer Laschen- oder Schienenkammer als Dämpfungsmittel und/oder Dämmmittel, also als Absorbermittel -und/oder Reflexionsmittel überall Anwendung finden, mit Hilfe von beispielsweise Bitumen oder anderen Klebstoff an den Steg oder an den Schienenkopf und/oder den Schienenfuß angekoppelt werden können.From practice, it is generally known that Kammerfüllkörper that find everywhere in a tab or rail chamber as a damping means and / or insulation, so as absorber and / or reflection means application, for example, bitumen or other adhesive to the web or on the Rail head and / or the rail foot can be coupled.

Von daher liegt der Erfindung das Problem zugrunde, eine verbesserte Lösung für Schienen einer Eisenbahn mit Dämpfungsmitteln vorzuschlagen.Therefore, the invention is based on the problem to propose an improved solution for rails of a railway with damping means.

Das Problem wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen erfasst. The problem is solved by the features of claim 1. Further developments of the invention are covered in the subclaims.

Wie bereits im zitierten Stand der Technik erwähnt, soll der Kunststoff auf Schub beansprucht werden, damit durch Reibungsenergie die Schwingungsenergie in den Schienen absorbiert wird. Dies gelingt jedoch nur mit Hilfe, des Metallbleches bzw. der angekoppelten Betonmassen, deren Beharrungsvermögen relativ zu dem schneller in Schwingungen versetzten Kunststoff ausgenutzt wird.As already mentioned in the cited prior art, the plastic is to be subjected to shear, so that by frictional energy, the vibration energy is absorbed in the rails. However, this is possible only with the help of the metal sheet or the coupled concrete masses whose inertia is utilized relative to the faster vibrated plastic.

Die Erfinder haben in Fortführung dieser Grundidee festgestellt, dass größere Massen den Effekt erhöhen. Zur Reduzierung des Aufwandes bei der Montage wird erfindungsgemäß ein homogener Körper an die Schiene angekoppelt, der durch Extrudieren oder Spritzgießen in Längen von 200 - 2000 mm separat hergestellt wird und im wesentlichen aus einem Thermoplast besteht, der mit Metallkomponenten gefüllt ist. Als Thermoplaste haben sich dabei die Stoffe Polyethylen oder Polypropylen als günstig herausgestellt.
Nach der Plastifizierung des Thermoplastes in einem Extruder wird in diesen vor dem Extrudieren bzw. Spritzgießen oder Pressen in eine Form dann eine Metallkomponente eingebracht, vorzugsweise ein reines Erz aus Hämatit oder Magnetit oder Mischungen der beiden in möglichst kleinkörniger Form, die den Extrusions- oder Spritzgießvorgang nicht behindern. Angesichts dessen, dass die Kammerfüllkörper zur Ausfüllung der Laschenkammer zwischen Schienenkopf und Schienenfuß jedoch relativ groß ist und entsprechende Querschnitte benötigt werden, lassen sich auch sehr körnige Metallkomponenten dort verwenden.
Versuche haben ergeben, dass auch Walzzunder, der neben Teilen an Fe2O3 und Fe3O4 auch noch Anteile an FeO und Verunreinigungen enthält, ebenfalls verwendbar wäre, jedoch werden die reinen Erze bevorzugt.
Während die Thermoplaste ein spezifisches Gewicht bzw. eine Dichte von 0,9 - 1,0 g/cm3 haben, weisen Hämatit und Magnetit eine Dichte von etwa 5,2 - 5,3 g/cm3 auf. Wie reine gewaschene Erze sind sie auch leicht zu handhaben, ohne dass eine Staubentwicklung besteht und so zum Spritzgießen oder Extrudieren von statten gehen kann. Die Metallkomponenten werden von den Thermoplasten vollständig eingeschlossen, so dass nach dem Verfahren ein völlig homogener Körper mit einer Kunststoffoberfläche vorhanden ist. Um das spezifische Gewicht bzw. die Dichte von > 2,4 g/cm3 zu erreichen, werden die Hämatitanteile bzw. Magnetitanteile oder Mischungen von diesen einen Volumenanteil am Körper von 35 - 70 % aufweisen, was zu einem spezifischen Gewicht führt, das nach den Versuchen der Erfinder zwischen 2,5 - 3,9 g/cm3, vorzugsweise jedoch 2,9 - 3,5 g/cm3 betragen soll. Dies ist ein Kompromiss in der Menge der zuzugebenden Metallkomponentenanteile wegen der guten Verarbeitbarkeit z. B. in einer Extrusionsmaschine mit einer entsprechenden Form, die auf den Querschnitt der Laschenkammer zugeschnitten ist.The inventors have found in continuation of this basic idea that larger mass increase the effect. To reduce the effort during assembly, a homogeneous body is coupled to the rail according to the invention, which is produced by extrusion or injection molding in lengths of 200 - 2000 mm separately and consists essentially of a thermoplastic, which is filled with metal components. As thermoplastics, the substances polyethylene or polypropylene have been found to be favorable.
After the plasticization of the thermoplastic material in an extruder, a metal component is then introduced into a mold before extrusion or injection molding or pressing, preferably a pure ore of hematite or magnetite or mixtures of the two in the smallest possible granular form, the extrusion or injection molding process do not hinder. However, in view of the fact that the chamber filling body for filling the tab chamber between the rail head and rail foot is relatively large and corresponding cross sections are required, it is also possible to use very granular metal components there.
Experiments have shown that mill scales, which in addition to parts of Fe 2 O 3 and Fe 3 O 4 also contains fractions of FeO and impurities, would also be usable, but the pure ores are preferred.
While the thermoplastics have a specific gravity of 0.9-1.0 g / cm 3 , hematite and magnetite have a density of about 5.2-5.3 g / cm 3 . Like pure washed ores, they are also easy to handle, with no dust formation and thus injection molding or extruding. The metal components are completely enclosed by the thermoplastics, so that after the process a completely homogeneous body with a plastic surface is present. In order to achieve the specific weight or density of> 2.4 g / cm 3 , the hematite portions or magnetite portions or mixtures of these will have a volume fraction of the body of 35-70%, which leads to a specific weight after The attempts of the inventor should be between 2.5-3.9 g / cm 3 , but preferably 2.9-3.5 g / cm 3 . This is a compromise in the amount of metal components to be added because of the good processability e.g. B. in an extrusion machine with a corresponding shape, which is tailored to the cross section of the tab chamber.

So kann ein derartig hergestellter Körper, insbesondere ein die Kammer im wesentlichen ausfüllender Kammerfüllkörper mit den Querschnittsabmessungen der Laschenkammer der Schienen in der aus der EP 0 150 264 A1 für sich bekannten Art und Weise mit Hilfe einer fließfähigen Zwischenschicht und/oder einer Metallklammer an den Steg der Schiene und/oder den Schienenkopf und/oder den Schienenfuß angekoppelt werden. Die Ankopplung, ebenso wie die Länge der verwendbaren Kammerfüllkörper, die relativ steif und schwer sind, weichen von der üblichen Anbauweise an den Schiene ab. Auf Straßenabschnitten werden häufig Rillenschienen verwendet, während auf freier Strecke vor allem Vignolschienen Verwendung finden. Entsprechend sind die Laschenkammern unterschiedlich gestaltet und die Befestigungen auf dem Unterbau angeordnet. Vignolschienen werden in der Regel auf Schwellen verlegt, während Straßenbahngleise mit Rillenschienen häufig mit Abstandshaltern, den Spurstangen, auf Längsfundamenten verlegt werden.
Dementsprechend muß ein Kammerfüllkörper gegebenenfalls unterschiedlich gestaltet sein, so dass er in die Befestigung des Schienenunterbaus integriert wird bzw. an diesen Stellen einen Freiraum gewährt, um die Befestigung zu fixieren.Thus, a body produced in this way, in particular a chamber filling body substantially filling the chamber with the cross-sectional dimensions of the tab chamber of the rails in the from the EP 0 150 264 A1 known manner with the aid of a flowable intermediate layer and / or a metal clip to the web of the rail and / or the rail head and / or the rail foot can be coupled. The coupling, as well as the length of usable Kammerfüllkörper, which are relatively stiff and heavy, deviate from the usual manner of attachment to the rail. Grooved rails are often used on road sections, while Vignol rails are used on the open road. Accordingly, the tab chambers are designed differently and arranged the fasteners on the substructure. Vignole rails are usually laid on sleepers, while tram tracks with grooved rails are often laid with spacers, the tie rods, on longitudinal foundations.
Accordingly, a Kammerfüllkörper must optionally be designed differently, so that it is integrated into the attachment of the rail substructure or granted at these points a space to fix the attachment.

Anhand einer schematischen Skizze soll nachfolgend eine Ausführungsform der Erfindung mit zwei Befestigungsmethoden dargestellt und beschrieben werden.On the basis of a schematic sketch, an embodiment of the invention is shown and described below with two attachment methods become.

Es zeigen:

Figur 1
eine erste Auführungform der Erfindung;
Figur 2
eine zweite Ausführungsform der Erfindung.
Show it:
FIG. 1
a first embodiment of the invention;
FIG. 2
a second embodiment of the invention.

Eine Schiene 1, hier in Kopfansicht dargestellt, hat einen Schienenkopf 2, einen Schienensteg 3 und einen Schienenfuß 4, zwischen Schienenkopf und Schienenfuß ergibt sich entlang des Schienensteges eine Laschenkammer oder Schienenkammer.A rail 1, shown here in a top view, has a rail head 2, a rail web 3 and a rail foot 4, between the rail head and rail foot results along the rail web a tab chamber or rail chamber.

In Figur 1 ist ein Dämpfungmittel in Form eines die Kammer voll ausfüllenden Kammerfüllkörpers 5 auf beiden Seiten des Schienensteges 3 dargestellt. Der Kammerfüllkörper ist mittels einer Klebeschicht 6, die hier dargestellt ist, als einen Spalt zwischen Schienenkopf 2, Schienensteg 3 und Schienenfuß 4 und Kammerfüllkörper 5 voll ausfüllend gekoppelt. Genausogut kann eine Verklebung bzw. ein Klebespalt nur am Schienensteg oder am Schienenfuß vorkommen, weil Schienensteg und Schienenfuß, die Teile der Schiene sind, die aufgrund ihrer geringen Abmessung die meist störenden Schwingungen ausstrahlen. Der Kammerfüllkörper ist hier so dargestellt, dass die fein verteilten Erze sichtbar sind, jedoch ist der Kammerfüllkörper so gestaltet, dass er nach außen sich anfühlt, wie ein Kunststoffkörper, jedoch ein sehr hohes Gewicht aufweist und die Metallteile, genauer Hämatit- bzw. Magnetitteile weder fühlbar noch als solche erkennbar sind. Eine solche Schiene kann wie für sich bekannt, hergerichtet und so dann oder bereits werkseitig mit einem derartigen Kammerfüllkörper bestückt werden. Der Fachmann kann ebenso zwischen der Klebeschicht und dem Kammerfüllkörper, wenn er eine andere Einstellung der Weichheit der Oberfläche erzielen möchte, den Kammerfüllkörper 5 auch noch mit einer anderen Kunststoffschicht überziehen. Dies gilt auch für die von der Schiene abgewandte Seite, wenn dort z.B. eine Pflasterung erfolgen soll und dort ebenfalls noch eine weitere Entkopplung der Pflasterung vom Kammerfüllkörper vorzusehen ist. Dies hängt von den jeweiligen Art der Umgebung des Kammerfüllkörpers bzw. der Schiene ab.In FIG. 1 is a damping means in the form of a chamber fully filling chamber filler 5 shown on both sides of the rail web 3. The chamber filling body is coupled by means of an adhesive layer 6, which is shown here, as a gap between the rail head 2, rail web 3 and rail 4 and 4 Füllfüllkörper full filling. Just as an adhesion or an adhesive gap can only occur on the rail web or on the rail, because rail web and rail, which are parts of the rail, which emit the most disturbing vibrations due to their small size. The Kammerfüllkörper is shown here so that the finely divided ores are visible, however, the Kammerfüllkörper is designed so that it feels to the outside, as a plastic body, but has a very high weight and the metal parts, more precisely Hämatit- or Magnetitteile neither tangibly still recognizable as such. Such a rail can be as well known, prepared and so then or already factory equipped with such a chamber filler. The person skilled in the art can also cover the chamber filling body 5 with another layer of plastic between the adhesive layer and the chamber filling body if he wishes to achieve a different setting of the softness of the surface. This also applies to the side facing away from the rail when, for example, there is a paving and there is also still another decoupling of the paving from Kammerfüllkörper is provided. This depends on the respective type of environment of the Kammerfüllkörpers or the rail from.

Figur 2 zeigt in ähnlicher Weise wie Figur 1 angeordnete Kammerfüllkörper 5, die jedoch in diesem Fall eine Vertiefung 51 aufweisen. Zwischen den beiden Vertiefungen 51 erstreckt sich eine Metallklammer 7, die die Kammerfüllkörper 5 in ihrer Lage am Schienensteg 3 fixieren. Diese Bauweise kann additiv zu einer Kleberschicht 6 angewendet werden, um den Druck des Kammerfüllkörpers auf den Schienensteg zu erhöhen, bzw. die Ankopplung des Kammerfüllkörpers an den Schienensteg 3 zu verbessern. Es kann jedoch auch anstelle einer Klebeschicht 6 der Kammerfüllkörper mit einer Kunststoffschicht überzogen sein, die dann die hier durch den Kleber eingenommene Fuge ausfüllt, insbesondere dann, wenn die Schiene erhebliche Walztoleranzen hat, die die Ankopplung durch Formschluss leicht erhöhen.
Anstelle der hier dargestellten Klammern können natürlich auch andere Klammerformen zum Einsatz kommen.
Der Kammerfüllkörper wird in den vor Ort notwendigen Längen hergestellt; dies können auf freier Strecke bei einer Straßenbahn, die keine Schienenfußbefestigung üblicher Art hat größere Strecken von etwa 1 m sein, während ansonsten die Länge der Kammerfüllkörper an die Schienenbefestigung in ihrer Länge und Form anzupassen ist. FIG. 2 shows in a similar way as FIG. 1 arranged chamber filling 5, but in this case have a recess 51. Between the two recesses 51, a metal bracket 7, which fix the Kammerfüllkörper 5 in position on the rail web 3 extends. This construction can be used in addition to an adhesive layer 6 in order to increase the pressure of the Kammerfüllkörpers on the rail web, or to improve the coupling of the Kammerfüllkörpers to the rail web 3. However, it may also be coated instead of an adhesive layer 6 of the chamber filler with a plastic layer, which then fills the here occupied by the adhesive joint, especially if the rail has significant rolling tolerances that increase the coupling by positive engagement slightly.
Instead of the brackets shown here, of course, other types of brackets can be used.
The Kammerfüllkörper is made in the necessary local lengths; this can be greater distances of about 1 m in the open road in a tram that has no rail foot mounting of the usual type, while otherwise the length of the chamber filler is to be adapted to the rail fastening in its length and shape.

Claims (5)

  1. Rail (1, 1') with damping media (5) that mainly consist of a cavity fill body produced in extrusion or injection molding processes and made of thermoplastic with finely distributed metal components within and a specific finished body weight of 2.4 g/cm3, and is coupled to the rail web (3) and/or the rail flange (4) by means of a permanently flowable intermediate layer (6) and/or a metal bracket (7).
  2. Rail as in claim 1, characterized by a standard density of 2.5 to 3.9 g/cm3and a preferred density of 2.9 to 3.5 g/cm3.
  3. Rail as in claim 1 or 2, characterized by a body (5) made of thermoplastic of polyethylene or polypropylene.
  4. Rail as in one of the above claims, characterized by a cavity fill body with a volumetric content of 35 to 70% of metal components hematite and magnetite.
  5. Rail as in one of the above claims, characterized by metal components that consist of mill scale.
EP03720264A 2002-04-07 2003-04-07 Damping means for rails Expired - Lifetime EP1492927B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10215255A DE10215255A1 (en) 2002-04-07 2002-04-07 Damping agent for rails
DE10215255 2002-04-07
PCT/DE2003/001140 WO2003085201A1 (en) 2002-04-07 2003-04-07 Damping means for rails

Publications (2)

Publication Number Publication Date
EP1492927A1 EP1492927A1 (en) 2005-01-05
EP1492927B1 true EP1492927B1 (en) 2008-12-31

Family

ID=28051171

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Application Number Title Priority Date Filing Date
EP03720264A Expired - Lifetime EP1492927B1 (en) 2002-04-07 2003-04-07 Damping means for rails

Country Status (14)

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US (1) US7234647B2 (en)
EP (1) EP1492927B1 (en)
JP (1) JP2005522602A (en)
KR (1) KR20040108702A (en)
AT (1) ATE419427T1 (en)
AU (1) AU2003223910A1 (en)
CA (1) CA2481436A1 (en)
DE (2) DE10215255A1 (en)
DK (1) DK1492927T3 (en)
HK (1) HK1069193A1 (en)
IL (1) IL164329A0 (en)
PL (1) PL212951B1 (en)
PT (1) PT1492927E (en)
WO (1) WO2003085201A1 (en)

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JP4832751B2 (en) * 2004-11-19 2011-12-07 積水化学工業株式会社 Damping material fixing device and fixing method
WO2009059512A1 (en) * 2007-11-07 2009-05-14 Wai Lun Ho Tunable vibration absorbing device
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ES2437145T3 (en) * 2009-10-22 2014-01-09 Vossloh Werke Gmbh Lane core damping for noise reduction on railway tracks
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ES2443044T3 (en) * 2010-05-10 2014-02-17 Vossloh-Werke Gmbh Guide plate for laterally guiding a rail system for fixing a rail to a base
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Publication number Publication date
CA2481436A1 (en) 2003-10-16
PL371086A1 (en) 2005-06-13
DK1492927T3 (en) 2009-05-04
US20050258265A1 (en) 2005-11-24
US7234647B2 (en) 2007-06-26
HK1069193A1 (en) 2005-05-13
AU2003223910A1 (en) 2003-10-20
DE10215255A1 (en) 2003-10-16
JP2005522602A (en) 2005-07-28
DE50311002D1 (en) 2009-02-12
PL212951B1 (en) 2012-12-31
EP1492927A1 (en) 2005-01-05
PT1492927E (en) 2009-04-07
ATE419427T1 (en) 2009-01-15
KR20040108702A (en) 2004-12-24
IL164329A0 (en) 2005-12-18
WO2003085201A1 (en) 2003-10-16

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