EP0542712B1 - Acoustic protection cover for one wheel of a set of wheels of a railway vehicle - Google Patents

Acoustic protection cover for one wheel of a set of wheels of a railway vehicle Download PDF

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Publication number
EP0542712B1
EP0542712B1 EP92890241A EP92890241A EP0542712B1 EP 0542712 B1 EP0542712 B1 EP 0542712B1 EP 92890241 A EP92890241 A EP 92890241A EP 92890241 A EP92890241 A EP 92890241A EP 0542712 B1 EP0542712 B1 EP 0542712B1
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EP
European Patent Office
Prior art keywords
wheel
cap
sound
wheels
hood
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.)
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EP92890241A
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German (de)
French (fr)
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EP0542712A1 (en
Inventor
Hans Dipl.-Ing. Hödl
Karl Zöscher
Günter Weidinger
Aeberli Konrad
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Siemens AG Oesterreich
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SGP Verkehrstechnik GmbH
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    • 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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • B61F5/526—Bogie frames comprising noise reducing devices

Definitions

  • the invention relates to a soundproofing cover on a wheel of a wheel set of a rail vehicle, which is designed as a hood which opens the wheel contact area, which preferably extends to the lower boundary profile according to the UIC standard, at most plus an admissible degree of wear of the diameter of the wheel disc, the Wheelset has a wheelset shaft mounted at each of its two ends on the outside of the respective wheel in a wheelset bearing housing, over which the hood extends downwards in the vertical direction.
  • a sound-absorbing panel of bogies is known, which is designed as a wheel arch that surrounds each of the disc wheels.
  • the inside of the wheel arch is lined with sound-absorbing material and only leaves the wheel contact area free.
  • This panel is attached to the bogie frame in a disadvantageous manner.
  • the purpose of the present sound insulation is to insulate the sound vibrations between the rail and the wheel that arise during the rolling motion, in particular the resulting sound radiation through the wheel disc and the wheel rim (tire) as best as possible.
  • the hood extends closely to the wheel and is smaller in overall dimensions than a hood which is attached to the bogie frame.
  • the hood is rotatably mounted concentrically to the wheel on the inside of the wheel by means of a support bearing on the wheelset shaft and is either rotatably mounted on the wheelset shaft by means of a further support bearing or is rigidly fastened to the wheelset bearing housing, or that the hood is only rigidly attached to the wheelset bearing housing or carried by the wheelset bearing housing.
  • This construction of the sound insulation primarily insulates the sound radiation of the wheel disc, which acts like a membrane due to its surface.
  • the hood is divided into an upper part and a lower part releasably connected to it.
  • the rigid attachment of the hood to the wheelset bearing housing can be formed by a releasable connection, preferably a screw connection.
  • a releasable connection preferably a screw connection.
  • separable slide bearings can preferably be used.
  • the hood can be secured against rotation by an anti-rotation device consisting of a lever articulated on the one hand on the hood and on the other hand on the bogie.
  • the bearing e.g. outer bearing shell of a plain bearing
  • the bearing is preferably integrated in the hood.
  • Vibration damping or damping material can also be used between the support bearing (s) and the hood.
  • the structure of the hood can consist of a carrier layer made of metal or plastic and an insulating layer made of plastic provided on the inside in a manner known per se.
  • the carrier layer can be made from welded aluminum parts as well as from a certain plastic. Insulation layer and carrier layer are preferably connected with rivets or adhesive.
  • the insulation layer is provided on the wheel side with a dirt-repellent, stone chip-resistant and fire-resistant layer.
  • the hood can also consist of a self-supporting, sound-absorbing plastic insulation material which either has the same density throughout or is made up of layers of different density.
  • An outer hard layer can enclose the actual insulation material. This offers great advantages in the special shaping of such construction elements.
  • hoods An additional possibility of producing such hoods is the sandwich construction, an insulating layer being provided between a supporting shell made of metal or plastic and a sound-permeable inner shell made of metal or plastic.
  • the insulating material is embedded between an outer and inner sound-permeable carrier shell made of metal or plastic.
  • a depression for engaging a bearing puller is provided on the outside of the hood.
  • the wheelset bearing (after the wheelset has been removed from the bogie) can be disassembled and assembled without having to remove it from the wheelset if the replacement is necessary.
  • the hood can be divided in a manner known per se into an upper part and a lower part releasably connected to it.
  • the hood is formed in one piece and, starting from the horizontal longitudinal center plane, has vertically extending side walls, a recess, which is open at the bottom and can be closed with a lid, being provided for the passage of the wheel set shaft during assembly in both side walls .
  • the inner space of the hood does not taper from the horizontal center plane below and thus enables, with regard to the recesses, an assembly from above on both sides of the hood, the hood being pushed over the wheel.
  • the recesses are then closed by covers, on the inside of which a soundproofing compound is arranged at most. Furthermore, it is advisable to adapt the shape of the hood to the circumferential contour of the wheel.
  • An opening can preferably be provided at the upper apex of the hood in order to advantageously prevent the accumulation of dirt or flying snow.
  • the materials used can advantageously be used to produce various designs for different types of bogies.
  • Fig. 1 the two wheels of a wheelset shaft 6 of a bogie are designated by 2, of which only the frame is indicated and designated by 26. With 32 the top edge of the rail is designated.
  • the wheelset shaft 6 is mounted in wheelset bearing housings 3.
  • Each of the wheels 2 is enclosed by a hood 1, which extends over more than the upper half of the wheel, completely surrounding it, and preferably extends to the lower boundary profile according to the UIC standard plus the size of a permissible wear of the wheel.
  • the hood 1 has a congruent shape with the wheel 2, so that the interior tapers downwards from the horizontal central plane.
  • the hood 1 is attached or mounted on the wheel set so that it is arranged concentrically with the wheel.
  • the hood 1 is on the wheelset bearing housing 3 by detachable connections, preferably screw connections 4, on the outside of the wheel and on the other hand by means of a support bearing 5 on the wheelset shaft 6 in the embodiment according to FIG. 4 on the inside of the wheel.
  • This support bearing 5, which can also be omitted in one variant, can be designed as a slide bearing, which is preferably a separable slide bearing that has two shell halves, not shown, of which the outer shell is provided with a vibration-damping material, in the present case a rubber profile ring 10, which is attached to the outer wall of the hood 1.
  • a support bearing 5 ' is provided not only on the outside of the wheel but also on the inside of the wheel, which can also be a separable slide bearing. This construction is advantageous for smaller wheelset bearings.
  • the hood is secured against rotation, but can take part in any other movement of the wheelset shaft.
  • the hood as shown in FIGS. 2 and 5, can be connected to the bogie frame 26 by an anti-rotation device 9.
  • This anti-rotation 9 can have a lever 28 which is connected on the one hand to the bogie frame 26 and on the other hand to the hood 1 by means of a joint 7 and 8, respectively.
  • the anti-rotation 9 is designed as a pendulum.
  • the hood 1 can, as shown in Fig. 6, inside, i.e. on the side facing the wheel, consist of an insulating layer 11 made of plastic and an overlying carrier layer 12 made of metal or plastic.
  • the soundproofing compound consists exclusively of a self-supporting plastic insulating material 13, which can be enclosed on the outside, as indicated by dashed lines, by another plastic sheathing.
  • the hood 1 can be constructed continuously from a material of the same density or from layers of different density.
  • FIG. 8 Another embodiment of the hood in a so-called sandwich construction is shown in FIG. 8, according to which an insulating layer 16 is interposed between a supporting outer shell 14 made of metal or plastic and a sound-permeable inner shell 15 made of metal or plastic.
  • a supporting outer shell 14 made of metal or plastic
  • a sound-permeable inner shell 15 made of metal or plastic.
  • FIG. 2 it is divided into an upper part 17 and a lower part 18 along the diagonal line 31, the two parts being screwed or the like. are releasably connected.
  • a depression 19 can be formed on the outside of the hood 1 in such a way that a bearing puller between the hood 1 and the wheelset bearing housing 3 can be brought into engagement when the wheelset bearing is replaced.
  • This depression 19 extends from the upper part of the hood 1 to below the horizontal central plane of the wheel and symmetrically to the vertical central axis thereof.
  • formations 20 can also be provided on the circumference of the hood 1 in order to be able to install it in certain types of bogies.
  • the downward opening 21 of the hood is preferably kept small in order to minimize the risk of contamination and the exit surface of the sound.
  • the peripheral wall 22 is made to run vertically downward from the horizontal central plane, an opening 29, 30 extending to the horizontal central plane being provided in each of the two side walls, each of which is covered by a cover 23 or 24 is closed the inside of which sound-absorbing material can be applied.
  • This opening makes it possible to mount hoods 1 on existing bogies or wheels, wherein the hood can be placed on the wheelset shaft. In this case, a subdivision of the hood 1 is not necessary.
  • an opening 25 can be provided to allow the ejection of dirt or flying snow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Building Environments (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Engines (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

Acoustic protection cover for a wheel of a rail vehicle. In order to damp sound vibrations, produced during rolling movement, between rail and wheel as well as possible, the acoustic protection is constructed as a hood 1 so that the best possible enclosure (covering) of the wheel disc is achieved thereby. The hood 1 can extend as far as the lower boundary profile according to the UIC standard, if necessary including a permitted degree of wear of the diameter of the wheel disc, and the hood 1 is rotatably mounted concentrically with respect to the wheel 2 on the inside of the wheel on the shaft 6 of the wheel set by means of a support bearing 5 and, on the outside of the wheel, is either also rotatably mounted on the shaft 6 of the wheel set by means of a further support bearing 5' or rigidly attached to the bearing housing 3 of the wheel set. The hood 1 can also be merely rigidly attached to the bearing housing 3 of the wheel set or borne by the bearing housing 3 of the wheel set. <IMAGE>

Description

Die Erfindung betrifft eine Schallschutzabdeckung an einem Rad eines Radsatzes eines Schienenfahrzeuges, die als eine den Radaufstandsbereich freigebende Öffnung aufweisende Haube ausgebildet ist, die vorzugsweise bis an das untere Umgrenzungsprofil nach UIC-Norm, allenfalls zuzüglich eines zulässigen Verschleißmaßes des Durchmessers der Radscheibe heranreicht, wobei der Radsatz eine an jedem ihrer beiden Enden an der Außenseite des jeweiligen Rades in einem Radsatzlagergehäuse gelagerte Radsatzwelle besitzt, über die sich die Haube in vertikaler Richtung nach unten erstreckt.The invention relates to a soundproofing cover on a wheel of a wheel set of a rail vehicle, which is designed as a hood which opens the wheel contact area, which preferably extends to the lower boundary profile according to the UIC standard, at most plus an admissible degree of wear of the diameter of the wheel disc, the Wheelset has a wheelset shaft mounted at each of its two ends on the outside of the respective wheel in a wheelset bearing housing, over which the hood extends downwards in the vertical direction.

Unter den vielen Möglichkeiten Schallemissionen von Schienenfahrzeugen abzuschwächen oder zu vermeiden, bietet sich unter anderem jene der Kapselung oder weitgehenden Ummantelung von gewissen Bauteilen mit schalldämmenden bzw. schalldämpfenden Materialien an.Among the many possibilities to attenuate or avoid noise emissions from rail vehicles, encapsulation or extensive sheathing of certain components with sound-absorbing or sound-absorbing materials is one of the options.

Durch die DE-OS 27 22 249 ist eine schalldämmende Verkleidung von Drehgestellen bekannt geworden, die als Radkasten ausgebildet ist, der jedes der Scheibenräder umgibt. Der Radkasten ist im Inneren mit schalldämmendem Material ausgekleidet und läßt nur den Radaufstandsbereich frei. Diese Verkleidung ist in nachteiliger Weise am Drehgestellrahmen befestigt.From DE-OS 27 22 249 a sound-absorbing panel of bogies is known, which is designed as a wheel arch that surrounds each of the disc wheels. The inside of the wheel arch is lined with sound-absorbing material and only leaves the wheel contact area free. This panel is attached to the bogie frame in a disadvantageous manner.

Der vorliegende Schallschutz hat die Aufgabe, die bei der Rollbewegung entstehenden Schallschwingungen zwischen Schiene und Rad, wie im besonderen die daraus resultierende Schallabstrahlung durch die Radscheibe wie des Radkranzes (Radreifens), bestmöglich zu dämmen. Außerdem soll auch erreicht werden, daß die Haube eng an das Rad reicht und in den Gesamtausmaßen kleiner ist als eine Haube, die am Drehgestellrahmen befestigt ist.The purpose of the present sound insulation is to insulate the sound vibrations between the rail and the wheel that arise during the rolling motion, in particular the resulting sound radiation through the wheel disc and the wheel rim (tire) as best as possible. In addition, it should also be achieved that the hood extends closely to the wheel and is smaller in overall dimensions than a hood which is attached to the bogie frame.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei einer Schallschutzabdeckung der eingangs erwähnten Art die Haube konzentrisch zum Rad radinnenseitig durch eine Stützlagerung auf der Radsatzwelle drehbar gelagert ist und radaußenseitig entweder mittels einer weiteren Stützlagerung ebenfalls auf der Radsatzwelle drehbar gelagert oder am Radsatzlagergehäuse starr befestigt ist, oder daß die Haube lediglich am Radsatzlagergehäuse starr befestigt bzw. vom Radsatzlagergehäuse getragen ist. Durch diese Bauweise des Schallschutzes wird in erster Linie die Schallabstrahlung der Radscheibe, die aufgrund ihrer Fläche wie eine Membrane wirkt, gedämmt. Durch größtmögliche Überdeckung (Einhüllung) der Radscheibe (geringstmöglicher Abstand zwischen Schiene und unterer Öffnung der Haube) wird einerseits versucht die schallabstrahlende Fläche der Radscheibe so klein wie möglich zu halten, anderseits soll auch der Schallabstrahlkegel, der vom Berührpunkt Rad-Schiene ausgeht, verkleinert werden.This object is achieved in that, in the case of a soundproofing cover of the type mentioned at the outset, the hood is rotatably mounted concentrically to the wheel on the inside of the wheel by means of a support bearing on the wheelset shaft and is either rotatably mounted on the wheelset shaft by means of a further support bearing or is rigidly fastened to the wheelset bearing housing, or that the hood is only rigidly attached to the wheelset bearing housing or carried by the wheelset bearing housing. This construction of the sound insulation primarily insulates the sound radiation of the wheel disc, which acts like a membrane due to its surface. By covering the wheel disc as much as possible (the smallest possible distance between the rail and the lower opening of the hood), on the one hand an attempt is made to keep the sound-radiating surface of the wheel disc as small as possible, and on the other hand the sound radiation cone emanating from the point of contact between the wheel and rail is to be reduced .

Nach einem weiteren Merkmal der Erfindung ist die Haube in einen Oberteil und einen mit diesem lösbar verbundenen Unterteil geteilt. Dadurch ergibt sich der Vorteil einer einfachen Montier- und Demontierbarkeit der Haube. So kann sie, ohne die Radsätze ausbauen zu müssen, bei völlig zusammengebautem Schienenfahrzeug montiert werden. Es ist lediglich erforderlich, dieses so weit anzuheben, daß sich die Radsätze nur ca. 0,5 m über der Schienenoberkante befinden.According to a further feature of the invention, the hood is divided into an upper part and a lower part releasably connected to it. This results in the advantage of the hood being easy to assemble and disassemble. This means that it can be assembled with the rail vehicle fully assembled without having to remove the wheel sets. It is only necessary to raise it so far that the wheel sets are only approx. 0.5 m above the top edge of the rail.

Die starre Befestigung der Haube am Radsatzlagergehäuse kann durch eine lösbare Verbindung, vorzugsweise eine Schraubverbindung, gebildet sein. Als Variante der Lagerung der Haube auf der Radsatzwelle können vorzugsweise teilbare Gleitlager dienen. Dabei kann die Haube gegen Verdrehung durch eine aus einem einerseits an der Haube und anderseits drehgestellfest angelenkten Hebel bestehenden Verdrehhemmung gesichert sein.The rigid attachment of the hood to the wheelset bearing housing can be formed by a releasable connection, preferably a screw connection. As a variant of the bearing of the hood on the wheelset shaft, separable slide bearings can preferably be used. The hood can be secured against rotation by an anti-rotation device consisting of a lever articulated on the one hand on the hood and on the other hand on the bogie.

Die Lagerung (z.B. äußere Lagerschale eines Gleitlagers) ist vorzugsweise in die Haube integriert.The bearing (e.g. outer bearing shell of a plain bearing) is preferably integrated in the hood.

Zwischen dem(n) Stützlager(n) und der Haube kann auch schwingungsdämmendes bzw. -dämfendes Material zur Anwendung kommen.Vibration damping or damping material can also be used between the support bearing (s) and the hood.

Des weiteren ist vorgesehen, die o.a. Befestigung der Haube am Radsatzlagergehäuse schwingungstechnisch isoliert auszuführen.Furthermore, it is provided that the above Fasten the hood to the axlebox bearing housing in a vibration-isolated manner.

Durch diese Lagerung am Radsatz ergibt sich ein weiteres wichtiges Merkmal der vorliegenden Erfindung, daß die Haube nämlich mit dem Radsatz fest verbunden ist und so die Relativbewegungen zwischen Radsatz und Drehgestellrahmen mit dem Radsatz vollzieht. Dies bietet den großen Vorteil, die Haube wie schon erwähnt so knapp als möglich bis zur Schiene heranreichen zu lassen, wie die Möglichkeit einer sehr raumsparenden Bauweise (Zwischenraum zwischen Radscheibe und Innenverkleidung der Haube kann sehr klein gehalten werden). Dabei kann nach unten hin der durch UIC-Norm festgelegte Umgrenzungsraum unter Beachtung des erlaubten Verschleißmaßes der Räder vollständig ausgenutzt werden. Im Gegensatz dazu müßte eine im Drehgestellrahmen befestigte Haube die Relativwege Radsatz-Drehgestellrahmen (z.B. Primärfederung) berücksichtigen.This bearing on the wheelset results in another important feature of the present invention, namely that the hood is firmly connected to the wheelset and thus performs the relative movements between the wheelset and the bogie frame with the wheelset. This offers the great advantage of letting the hood reach as close as possible to the rail as already mentioned, as well as the possibility of a very space-saving design (the space between the wheel disc and the inner lining of the hood can be kept very small). The bounding space defined by the UIC standard can be fully utilized, taking into account the permitted wear dimension of the wheels. In contrast, a hood attached to the bogie frame would have to take into account the relative travel of the wheelset bogie frame (e.g. primary suspension).

Die Haube kann in ihrem Aufbau aus einer Trägerschichte aus Metall oder Kunststoff und einer in an sich bekannter Weise an der Innenseite vorgesehenen Dämmschichte aus Kunststoff bestehen. Die Trägerschicht kann sowohl aus verschweißten Aluminiumteilen wie auch aus einem bestimmten Kunststoff gefertigt sein. Dämmschichte und Trägerschichte sind vorzugsweise mit Nieten oder Klebstoff verbunden. Die Dämmschichte ist radseitig mit einer schmutzabweisenden, steinschlagfesten wie feuerfesten Schicht versehen.The structure of the hood can consist of a carrier layer made of metal or plastic and an insulating layer made of plastic provided on the inside in a manner known per se. The carrier layer can be made from welded aluminum parts as well as from a certain plastic. Insulation layer and carrier layer are preferably connected with rivets or adhesive. The insulation layer is provided on the wheel side with a dirt-repellent, stone chip-resistant and fire-resistant layer.

In einer weiteren Ausführungsvariante der Haube kann diese auch aus einem selbsttragenden schalldämmenden Kunststoffdämmaterial bestehen, das entweder durchgehend gleiche Dichte aufweist oder aus Schichten verschiedener Dichte aufgebaut ist. Dabei kann eine äußere harte Schicht das eigentliche Dämmaterial umschließen. Dies bietet große Vorteile bei der speziellen Formgebung solcher Konstruktionselemente.In a further embodiment variant of the hood, it can also consist of a self-supporting, sound-absorbing plastic insulation material which either has the same density throughout or is made up of layers of different density. An outer hard layer can enclose the actual insulation material. This offers great advantages in the special shaping of such construction elements.

Eine zusätzliche Möglichkeit der Herstellung solcher Hauben ist der Aufbau in Sandwichbauweise, wobei zwischen einer tragenden Schale aus Metall oder Kunststoff und einer schalldurchlässigen Innenschale aus Metall oder Kunststoff eine Dämmschichte vorgesehen ist. Dabei ist zwischen einer äußeren und inneren schalldurchlässigen Trägerschale aus Metall oder Kunststoff das Dämmaterial eingelagert.An additional possibility of producing such hoods is the sandwich construction, an insulating layer being provided between a supporting shell made of metal or plastic and a sound-permeable inner shell made of metal or plastic. The insulating material is embedded between an outer and inner sound-permeable carrier shell made of metal or plastic.

Nach einem weiteren Merkmal der Erfindung ist an der Außenseite der Haube eine Einsenkung zum Eingriff einer Lagerabziehvorrichtung vorgesehen. Durch diese Ausführung der Haube kann weiters, ohne diese vom Radsatz abbauen zu müssen, das Radsatzlager (nach erfolgter Ausbindung des Radsatzes aus dem Drehgestell) bei Notwendigkeit des Tausches demontiert und montiert werden. Nach einem weiteren Merkmal der Erfindung kann die Haube in an sich bekannter Weise in einen Oberteil und einen mit diesem lösbar verbundenen Unterteil geteilt sein.According to a further feature of the invention, a depression for engaging a bearing puller is provided on the outside of the hood. With this version of the hood, the wheelset bearing (after the wheelset has been removed from the bogie) can be disassembled and assembled without having to remove it from the wheelset if the replacement is necessary. According to a further feature of the invention, the hood can be divided in a manner known per se into an upper part and a lower part releasably connected to it.

Nach einem weiteren Merkmal der Erfindung ist die Haube einstückig ausgebildet und weist ausgehend von der horizontalen Längsmittelebene nach unten lotrecht verlaufende Seitenwände auf, wobei in beiden Seitenwänden je eine nach unten offene, mit einem Deckel verschließbare Ausnehmung für den Durchtritt der Radsatzwelle bei der Montage vorgesehen ist. Bei dieser Bauform verjüngt sich somit der innere Raum der Haube von der horizontalen Mittelebene aus nicht nach unten und ermöglichst somit, im Hinblick auf die Ausnehmungen, an beiden Seiten der Haube eine Montage von oben, wobei die Haube über das Rad geschoben wird. Die Ausnehmungen werden danach durch Deckel verschlossen, an deren Innenseite allenfalls eine Schallschutzmasse angeordnet ist. Weiters ist es zweckmäßig, die Form der Haube der Umfangskontur des Rades anzupassen.According to a further feature of the invention, the hood is formed in one piece and, starting from the horizontal longitudinal center plane, has vertically extending side walls, a recess, which is open at the bottom and can be closed with a lid, being provided for the passage of the wheel set shaft during assembly in both side walls . With this design, the inner space of the hood does not taper from the horizontal center plane below and thus enables, with regard to the recesses, an assembly from above on both sides of the hood, the hood being pushed over the wheel. The recesses are then closed by covers, on the inside of which a soundproofing compound is arranged at most. Furthermore, it is advisable to adapt the shape of the hood to the circumferential contour of the wheel.

Vorzugsweise am oberen Scheitelpunkt der Haube kann eine Öffnung vorgesehen sein, um vorteilhaft das Ansammeln von Schmutz oder auch Flugschnee zu unterbinden.An opening can preferably be provided at the upper apex of the hood in order to advantageously prevent the accumulation of dirt or flying snow.

Durch die verwendeten Materialien können vorteilhaft vielgestaltige Bauformen für verschiedene Drehgestelltypen hergestellt werden.The materials used can advantageously be used to produce various designs for different types of bogies.

Weitere große Vorteile des Erfindungsgegenstandes sind die Recyclefähigkeit der Schallschutzabdeckung, wie eine sehr niedrige Masse derselben.Further great advantages of the subject matter of the invention are the recyclability of the soundproofing cover, like its very low mass.

Weitere Vorteile der Erfindung werden anhand der Zeichnungen näher erläutert, in welchen Ausführungsformen der Schallschutzabdeckung dargestellt sind.Further advantages of the invention are explained in more detail with reference to the drawings, in which embodiments of the soundproofing cover are shown.

Es zeigen

  • Fig. 1 eine Ausführungsform der Schallschutzabdeckung im Drehgestell in einer Ansicht von vorne,
  • Fig. 2 eine Seitenansicht der Haube nach Fig. 1 bzw. einen Schnitt nach der Linie C-C der Fig.1,
  • Fig. 3 eine Draufsicht einer Hälfte nach Fig. 1,
  • Fig. 4 einen Vertikalschnitt nach der Linie B-B aus Fig. 2 mit Verschraubung an Lagergehäuse und Stützlager auf der Radsatzwelle,
  • Fig. 5 einen Vertikalschnitt nach der Linie B-B aus Fig. 2 mit zwei Stützlagern auf der Radsatzwelle,
  • Fig. 6 eine erste Variante des inneren Aufbaues der Schallschutzabdeckung im Schnitt nach der Linie A-A der Fig. 1,
  • Fig. 7 eine zweite Variante des inneren Aufbaues der Schallschutzabdeckung im gleichen Schnitt wie Fig. 6,
  • Fig. 8 eine dritte Variante des inneren Aufbaues der Schallschutzabdeckung im gleichen Schnitt wie Fig. 6
  • und Fig. 9 eine Seitenansicht einer weiteren Ausführungsform der Schallschutzabdeckung bzw. einen Schnitt nach der Linie C-C der Fig. 1 der weiteren Ausführungsform.
Show it
  • 1 shows an embodiment of the soundproofing cover in the bogie in a view from the front,
  • 2 is a side view of the hood of FIG. 1 or a section along the line CC of Fig.1,
  • 3 is a plan view of one half of FIG. 1,
  • 4 shows a vertical section along the line BB from FIG. 2 with screwing on the bearing housing and support bearing on the wheelset shaft,
  • 5 shows a vertical section along the line BB from FIG. 2 with two support bearings on the wheel set shaft,
  • 6 shows a first variant of the internal structure of the soundproofing cover in section along the line AA of FIG. 1,
  • 7 shows a second variant of the internal structure of the soundproofing cover in the same section as FIG. 6,
  • 8 shows a third variant of the internal structure of the soundproofing cover in the same section as FIG. 6
  • and FIG. 9 shows a side view of a further embodiment of the soundproofing cover or a section along line CC of FIG. 1 of the further embodiment.

In Fig. 1 sind mit 2 die beiden Räder einer Radsatzwelle 6 eines Drehgestelles bezeichnet, von welchem lediglich der Rahmen angedeutet und mit 26 bezeichnet ist. Mit 32 ist die Schienenoberkante bezeichnet. Die Radsatzwelle 6 ist in Radsatzlagergehäusen 3 gelagert. Jedes der Räder 2 ist von einer Haube 1 eingeschlossen, welche sich über mehr als die obere Hälfte des Rades, dieses völlig umschließend, erstreckt und vorzugsweise bis an das untere Umgrenzungsprofil nach UIC-Norm zuzüglich der Größe eines zulässigen Verschleißes des Rades erstreckt.In Fig. 1, the two wheels of a wheelset shaft 6 of a bogie are designated by 2, of which only the frame is indicated and designated by 26. With 32 the top edge of the rail is designated. The wheelset shaft 6 is mounted in wheelset bearing housings 3. Each of the wheels 2 is enclosed by a hood 1, which extends over more than the upper half of the wheel, completely surrounding it, and preferably extends to the lower boundary profile according to the UIC standard plus the size of a permissible wear of the wheel.

Bei der Ausführungsform der Schallschutzabdeckung nach Fig. 2 hat die Haube 1 eine kongruente Form zum Rad 2, sodaß sich der Innenraum von der horizontalen Mittelebene aus nach unten verjüngt. Die Haube 1 ist am Radsatz so befestigt, bzw. gelagert, daß sie zum Rad konzentrisch angeordnet ist. Zu diesem Zweck ist die Haube 1 am Radsatzlagergehäuse 3 durch lösbare Verbindungen, vorzugsweise Schraubverbindungen 4, radaußenseitig und anderseits durch eine Stützlagerung 5 auf der Radsatzwelle 6 bei der Ausführungsform nach Fig. 4 radinnenseitig gelagert. Diese Stützlagerung 5, welche nach einer Variante auch entfallen kann, kann als Gleitlager ausgebildet sein, welches vorzugsweise ein teilbares Gleitlager ist, das zwei nicht dargestellte Schalenhälften aufweist, von welchen die Außenschale mit einem schwingungsdämpfenden Material versehen ist, im vorliegenden Fall einem Gummiprofilring 10, der an der Außenwand der Haube 1 befestigt ist. Bei der Ausführungsform der Schallschutzabdeckung nach Fig. 5 ist nicht nur radaußenseitig, sondern auch radinnenseitig ein Stützlager 5′ vorgesehen, welches ebenfalls ein teilbares Gleitlager sein kann. Diese Konstruktion ist bei kleineren Radsatzlagern vorteilhaft.In the embodiment of the soundproofing cover according to FIG. 2, the hood 1 has a congruent shape with the wheel 2, so that the interior tapers downwards from the horizontal central plane. The hood 1 is attached or mounted on the wheel set so that it is arranged concentrically with the wheel. For this purpose, the hood 1 is on the wheelset bearing housing 3 by detachable connections, preferably screw connections 4, on the outside of the wheel and on the other hand by means of a support bearing 5 on the wheelset shaft 6 in the embodiment according to FIG. 4 on the inside of the wheel. This support bearing 5, which can also be omitted in one variant, can be designed as a slide bearing, which is preferably a separable slide bearing that has two shell halves, not shown, of which the outer shell is provided with a vibration-damping material, in the present case a rubber profile ring 10, which is attached to the outer wall of the hood 1. In the embodiment of the soundproofing cover according to FIG. 5, a support bearing 5 'is provided not only on the outside of the wheel but also on the inside of the wheel, which can also be a separable slide bearing. This construction is advantageous for smaller wheelset bearings.

Die Haube ist gegen Verdrehung gesichert, kann aber jede andere Bewegung der Radsatzwelle mitmachen. Zu diesem Zweck kann die Haube, wie die Fig. 2 und Fig. 5 zeigen, durch eine Verdrehhemmung 9 mit dem Drehgestellrahmen 26 verbunden sein. Diese Verdrehhemmung 9 kann einen Hebel 28 aufweisen, welcher einerseits am Drehgestellrahmen 26 und anderseits an der Haube 1 durch je ein Gelenk 7 bzw. 8 angeschlossen ist.The hood is secured against rotation, but can take part in any other movement of the wheelset shaft. For this purpose, the hood, as shown in FIGS. 2 and 5, can be connected to the bogie frame 26 by an anti-rotation device 9. This anti-rotation 9 can have a lever 28 which is connected on the one hand to the bogie frame 26 and on the other hand to the hood 1 by means of a joint 7 and 8, respectively.

Bei der Ausführungsform der Schallschutzabdeckung nach Fig. 2 ist die Verdrehhemmung 9 als Pendel ausgebildet.2, the anti-rotation 9 is designed as a pendulum.

Die Haube 1 kann, wie Fig. 6 zeigt, innenseitig, d.h. an der dem Rad zugekehrten Seite, aus einer Dämmschicht 11 aus Kunststoff und einer darüberliegenden Trägerschichte 12 aus Metall oder Kunststoff bestehen.The hood 1 can, as shown in Fig. 6, inside, i.e. on the side facing the wheel, consist of an insulating layer 11 made of plastic and an overlying carrier layer 12 made of metal or plastic.

Bei der Ausführungsform nach Fig. 7 besteht die Schallschutzmasse ausschließlich aus einem selbsttragenden Kunststoffdämmaterial 13, welches außenseitig, wie strichliert angedeutet ist, von einer anderen Kunststoffummantelung eingeschlossen sein kann. Dabei kann die Haube 1 durchgehend aus einem Material gleicher Dichte oder aus Schichten verschiedener Dichte aufgebaut sein.7, the soundproofing compound consists exclusively of a self-supporting plastic insulating material 13, which can be enclosed on the outside, as indicated by dashed lines, by another plastic sheathing. The hood 1 can be constructed continuously from a material of the same density or from layers of different density.

Eine weitere Ausführungsart der Haube in sogenannter Sandwichbauweise zeigt Fig. 8, gemäß der zwischen einer tragenden Außenschale 14 aus Metall oder Kunststoff und einer schalldurchlässigen Innenschale 15 aus Metall oder Kunststoff eine Dämmschicht 16 zwischengelagert ist. Bei der Ausführungsform der Haube nach Fig. 2 ist diese in einen Oberteil 17 und einen Unterteil 18 nach der Diagonallinie 31 geteilt, wobei die beiden Teile durch Schrauben 27 od.dgl. lösbar verbunden sind.Another embodiment of the hood in a so-called sandwich construction is shown in FIG. 8, according to which an insulating layer 16 is interposed between a supporting outer shell 14 made of metal or plastic and a sound-permeable inner shell 15 made of metal or plastic. In the embodiment of the hood according to FIG. 2, it is divided into an upper part 17 and a lower part 18 along the diagonal line 31, the two parts being screwed or the like. are releasably connected.

Wie aus den Figuren 2 und 4 ersichtlich, kann an der Außenseite der Haube 1 eine Einsenkung 19 so ausgeformt sein, daß in diese bei einem Radsatzlageraustausch eine Lagerabziehvorrichtung zwischen Haube 1 und Radsatzlagergehäuse 3 zum Eingriff gebracht werden kann. Diese Einsenkung 19 erstreckt sich vom oberen Teil der Haube 1 bis unterhalb der horizontalen Mittelebene des Rades und symmetrisch zur lotrechten Mittelachse desselben. Außerdem können auch Ausformungen 20 am Umfang der Haube 1 vorgesehen sein, um dieselbe in bestimmte Typen von Drehgestellen einbauen zu können. Vorzugsweise wird die nach unten gerichtete Öffnung 21 der Haube kleingehalten, um die Gefahr der Verschmutzung, sowie die Austrittsfläche des Schalls zu minimieren.As can be seen from FIGS. 2 and 4, a depression 19 can be formed on the outside of the hood 1 in such a way that a bearing puller between the hood 1 and the wheelset bearing housing 3 can be brought into engagement when the wheelset bearing is replaced. This depression 19 extends from the upper part of the hood 1 to below the horizontal central plane of the wheel and symmetrically to the vertical central axis thereof. In addition, formations 20 can also be provided on the circumference of the hood 1 in order to be able to install it in certain types of bogies. The downward opening 21 of the hood is preferably kept small in order to minimize the risk of contamination and the exit surface of the sound.

Bei der Ausführungsform der Schallschutzabdeckung nach Fig. 9 ist die Umfangswand 22 von der horizontalen Mittelebene nach unten lotrecht verlaufend ausgeführt, wobei in den beiden Seitenwänden je eine sich bis zur horizontalen Mittelebene erstreckende Öffnung 29,30 vorgesehen ist, welche jeweils durch einen Deckel 23 bzw. 24 verschlossen ist, an dessen Innenseite schalldämpfendes Material aufgebracht sein kann. Diese Öffnung ermöglicht es, Hauben 1 auch auf bestehende Drehgestelle bzw. Räder zu montieren, wobei die Haube auf die Radsatzwelle aufgesetzt werden kann. In diesem Fall ist eine Unterteilung der Haube 1 nicht erforderlich.In the embodiment of the soundproofing cover according to FIG. 9, the peripheral wall 22 is made to run vertically downward from the horizontal central plane, an opening 29, 30 extending to the horizontal central plane being provided in each of the two side walls, each of which is covered by a cover 23 or 24 is closed the inside of which sound-absorbing material can be applied. This opening makes it possible to mount hoods 1 on existing bogies or wheels, wherein the hood can be placed on the wheelset shaft. In this case, a subdivision of the hood 1 is not necessary.

Am oberen Scheitelpunkt der Haube 1 kann eine Öffnung 25 vorgesehen sein, um den Auswurf von Schmutz oder Flugschnee zu ermöglichen.At the upper apex of the hood 1, an opening 25 can be provided to allow the ejection of dirt or flying snow.

Claims (14)

  1. Sound-proof covering on a wheel (2) of a set of wheels of a rail vehicle, which covering is configured as a cap (1) having an aperture, which exposes the wheel supporting region, and said covering preferably extending to the lower boundary profile according to the UIC-Standard, possibly with the inclusion of a tolerance of wear on the diameter of the wheel disc, the set of wheels having a shaft (6), which is mounted at each of its two ends on the external surface of the respective wheel (2) in a bearing housing (3) for the set of wheels, and over which shaft the cap (1) extends downwardly in the vertical direction, characterised in that the cap (1) is rotatably mounted on the shaft (6) of the set of wheels concentrically with the wheel (2) on the inside of the wheel by means of a support bearing (5) and, at the outside of the wheel, it is either likewise rotatably mounted on the shaft (6) of the set of wheels by means of an additional support bearing (5') or rigidly secured to the bearing housing (3) of the set of wheels, or in that the cap (1) is only rigidly secured to the bearing housing (3) of the set of wheels, or respectively is supported by the bearing housing (3) of the set of wheels.
  2. Sound-proof covering on a wheel according to claim 1, characterised in that the cap (1) is rigidly secured to the bearing housing (3) of the set of wheels by means of a detachable connection, preferably a screw connection (4).
  3. Sound-proof covering on a wheel according to claim 1, characterised in that divisible slide bearings (5, 5') are preferably provided on the shaft (6) of the set of wheels for the mounting of the cap (1).
  4. Sound-proof covering on a wheel according to claim 1 or 3, characterised in that the cap (1) is prevented from twisting by means of a twist-preventing means (9), which comprises a lever (28) pivotally connected, on the one hand, to the cap (2) and, on the other hand, so as to be fixed to the bogie.
  5. Sound-proof covering on a wheel according to claim 1, 3 or 4, characterised in that vibration-preventing or vibration-damping material (10) is provided between the support bearing or the support bearings (5, 5') and the cap (1).
  6. Sound-proof covering on a wheel according to one of claims 1 to 5, characterised in that the cap (1) is formed from a supporting layer (12) of metal or plastics material and from an insulating layer (11) of plastics material, which is provided on the internal surface.
  7. Sound-proof covering on a wheel according to one of claims 1 to 5, characterised in that the cap (1) is formed from a self-supporting insulating plastics material (13), which either has the same density throughout or is constructed from layers of variable density.
  8. Sound-proof covering on a wheel according to one of claims 1 to 5, characterised in that the cap (1) has a sandwich-like structure, an insulating layer (16) being provided between a supporting shell (14) of metal or plastics material and an internal shell (15) of metal or plastics material, which is permeable to sound.
  9. Sound-proof covering on a wheel according to one of claims 1 to 8, characterised in that a recess (19) is provided in the external surface of the cap (1) for the engagement of a bearing removing means.
  10. Sound-proof covering on a wheel according to one of claims 1 to 9, characterised in that the cap (1) is provided on its periphery with at least one notch (20).
  11. Sound-proof covering on a wheel according to one of claims 1 to 10, characterised in that the cap (1) is divided into an upper portion (17) and a lower portion (18), which is detachably connected to said upper portion.
  12. Sound-proof covering on a wheel according to claims 1 to 11, characterised in that the cap (1) is a one-piece construction and has lateral walls extending perpendicularly downwardly from the horizontal central longitudinal plane, a downwardly open aperture (29 or 30 respectively), which is closable by a cover (23 or 24 respectively), being provided in each of the two lateral walls for the shaft (6) of the set of wheels to pass therethrough during assembly.
  13. Sound-proof covering on a wheel according to one of claims 1 to 11, characterised in that the shape of the cap (1) is adapted to the circumferential configuration of the wheel (2).
  14. Sound-proof covering on a wheel according to one of claims 1 to 13, characterised in that the cap (1) preferably has an aperture (25) at the upper apex for the ejection of dirt or swirling snow.
EP92890241A 1991-11-14 1992-11-12 Acoustic protection cover for one wheel of a set of wheels of a railway vehicle Expired - Lifetime EP0542712B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2269/91 1991-11-14
AT0226991A ATA226991A (en) 1991-11-14 1991-11-14 SOUND PROTECTION COVER FOR A WHEEL OF A RAIL VEHICLE

Publications (2)

Publication Number Publication Date
EP0542712A1 EP0542712A1 (en) 1993-05-19
EP0542712B1 true EP0542712B1 (en) 1995-07-05

Family

ID=3531212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92890241A Expired - Lifetime EP0542712B1 (en) 1991-11-14 1992-11-12 Acoustic protection cover for one wheel of a set of wheels of a railway vehicle

Country Status (4)

Country Link
EP (1) EP0542712B1 (en)
AT (2) ATA226991A (en)
DE (1) DE59202811D1 (en)
ES (1) ES2077390T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022001608A1 (en) * 2020-06-28 2022-01-06 比亚迪股份有限公司 Bogie and railway vehicle with same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731389B1 (en) * 1995-03-06 1997-04-04 Lorraine Laminage DEVICE FOR SOUNDPROOFING A WHEEL, AND IN PARTICULAR A MOTOR VEHICLE WHEEL
JP6481393B2 (en) * 2014-02-13 2019-03-13 新日鐵住金株式会社 Railway vehicle trolley and railway vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202929C (en) *
US2849045A (en) * 1957-01-07 1958-08-26 Elmer E Anderson Wheel cover
DE2558676C3 (en) * 1975-12-24 1980-08-28 Wegmann & Co, 3500 Kassel Noise protection on rail vehicles
DE3020849A1 (en) * 1980-06-02 1981-12-17 Messerschmitt-Bölkow-Blohm GmbH, 8000 München SCREENS WITH RESONATORS, IN PARTICULAR SILATORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022001608A1 (en) * 2020-06-28 2022-01-06 比亚迪股份有限公司 Bogie and railway vehicle with same

Also Published As

Publication number Publication date
ES2077390T3 (en) 1995-11-16
ATE124657T1 (en) 1995-07-15
ATA226991A (en) 1994-05-15
DE59202811D1 (en) 1995-08-10
EP0542712A1 (en) 1993-05-19

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