EP0745161A1 - Roller arrangement - Google Patents

Roller arrangement

Info

Publication number
EP0745161A1
EP0745161A1 EP95910498A EP95910498A EP0745161A1 EP 0745161 A1 EP0745161 A1 EP 0745161A1 EP 95910498 A EP95910498 A EP 95910498A EP 95910498 A EP95910498 A EP 95910498A EP 0745161 A1 EP0745161 A1 EP 0745161A1
Authority
EP
European Patent Office
Prior art keywords
roller
rail section
rail
roller device
section
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.)
Granted
Application number
EP95910498A
Other languages
German (de)
French (fr)
Other versions
EP0745161B1 (en
Inventor
Sebastian Benenowski
Albrecht Demmig
Hans-Ulrich Dietze
Alfred Kais
Erich Nuding
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.)
Voestalpine Turnout Technology Germany GmbH
Original Assignee
Voestalpine BWG GmbH
Butzbacher Weichenbau 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 Voestalpine BWG GmbH, Butzbacher Weichenbau GmbH filed Critical Voestalpine BWG GmbH
Publication of EP0745161A1 publication Critical patent/EP0745161A1/en
Application granted granted Critical
Publication of EP0745161B1 publication Critical patent/EP0745161B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/02—Tongues; Associated constructions

Definitions

  • the invention relates to a roller device for a second rail section assigned to a first rail section, such as a stock rail, which can be adjusted along an adjustment path and can be attached to it or locked with it, such as a switch tongue, comprising a base such as a sliding chair for the second rail section as well as resilient or resiliently mounted roller elements associated with it along the adjustment path and preferably emanating from a common holder, on which the second rail section can be supported at least during adjustment.
  • a roller device for a second rail section assigned to a first rail section such as a stock rail
  • a base such as a sliding chair for the second rail section
  • resilient or resiliently mounted roller elements associated with it along the adjustment path and preferably emanating from a common holder, on which the second rail section can be supported at least during adjustment.
  • roller elements are supported on at least two spring elements of different characteristics, one of the spring elements having an essentially constant rigidity and the other spring element element has a variable stiffness.
  • the spring elements are mechanically coupled to one another in such a way that each roller element has a resilient state when the roller elements are loaded by the switch tongue.
  • a switch tongue roller device which is connected to a roller which rolls on a surface when the switch tongue is moved.
  • a switch tongue is moved on a support roller, which projects to a considerable extent over a bearing block.
  • a switch tongue is supported on rollers in order to reduce the sliding friction when adjusting.
  • the present invention is based on the problem of developing a roller device of the type described at the outset in such a way that possible force peaks are prevented or reduced when the second rail portion, which is adjustable relative to the first rail portion, is converted, provided that this is to be supported on roller elements.
  • the problem is essentially solved in that the second rail section rests on at least one of the roller elements in the position in contact with the first rail section, the (first) roller element being aligned with the free or locked second track section in alignment with the free surface of the support or protrudes slightly above it, or wherein the first track element protrudes above the free surface of the base, the second track section rests weightless or almost weightless on the base.
  • the second rail section like the switch tongue, always rests on the foot side on a roller element, that is to say also in the adjacent or locked position. As a result, both the sliding forces are reduced when the second track section is opened and when the foot hits the following roller elements.
  • the holder Due to the spring characteristic of the elastic support, which consists of elastomer material, the holder is raised slowly during the adjustment of the second rail section, since during the adjustment the surface over which the load is removed increases with the result that increases the rigidity of the elastic mounting. As a result, in the remote position of the second rail section, the wedge shape of the elastic bearing that was present at the beginning has been lost.
  • successive rollers can be mounted differently or have different spring properties in such a way that the first rail section obvious role sinks more under load than the distant one.
  • the invention is characterized in that when the second rail section is fixed with its foot between roller elements with its foot in relation to the first rail section, the roller element running above the foot is height-adjustable and / or elastically supported.
  • Fig. 1 shows a section of a switch area with a portion of
  • FIG. 2 shows the rail foot according to FIG. 1, but with the switch tongue in a remote position
  • Fig. 3 shows a detail of a second embodiment of a switch with adjacent switch tongue
  • Fig. 4 is a plan view of the detail of FIG. 3, partially broken away, but without rail sections and partially without their fastenings.
  • FIG. 1 a foot (10) of a switch tongue is shown purely in principle, which in FIG. 1 locks or is placed against a stock rail, not shown, and is arranged in FIG.
  • roller elements (12), (14) and (16) are arranged, which emanate from a common holder (18) which in turn has an elastic intermediate layer (20) consisting of preferably elastomer on a base (22). is supported.
  • roller elements (12), (14), (16) protrude approximately 5 mm above the surface of a support such as a sliding chair (24) for the switch tongue. However, if the switch tongue acts on the roller elements (12), (14), (16), these are recessed by approximately 1 mm with respect to the free surface of the sliding chair (24).
  • the invention provides that the foot (10) also when the switch tongue is locked or in contact, it rests on a roller (12) which, when the switch tongue is in contact or locked, is pressed down and preferably flush with the surface of the sliding chair, as is to be indicated by FIG. 1.
  • the elastic intermediate layer (20) becomes to a extent when load is only transferred in its front area, that is to say via the roller element (12) compressed that there is a wedge shape, which can be seen in principle in Fig. 1.
  • the roller (14) following in the adjustment path V of the switch tongue is stronger than normal in relation to the free surface of the sliding chair (24) sunk in, so that the front edge (26) of the switch tongue approaches the roller element (14) quasi tangentially, whereby force peaks during adjustment are largely excluded.
  • a mechanical reinforcement (30) is incorporated, which consists of a coil spring assembly can.
  • the rail foot (10) In the remote position, the rail foot (10) is fixed or clamped between the roller element (16) arranged on the underside and an upper roller element (32) which is supported on the upper side (34) of the foot (10).
  • the roller element (32) is height-adjustable on the one hand via its holder (36) and on the other hand is elastically mounted.
  • the holder (36) has an elastic section (38).
  • a switch tongue (40) with its foot (10) and an associated cheek rail (42) is shown, which starts from a plate (44) and the foot (46) on the one hand from a clamping plate (48 ) and on the other hand is fixed by a section (50) of a holder (52) which extends along the top of the rail foot (46) and which in turn can be welded to the plate (44).
  • two roller elements (54) and (56) extend from the holder (52), on which the foot (10) of the switch tongue (40) is supported both in the adjacent and in the remote position. At least the first roller element (54) is flush with the free surface of a sliding chair, not shown, or projects above it its surface slightly before, if there is a load through the switch tongue (40). This results in the advantages which have been explained in connection with the exemplary embodiment in FIGS. 1 and 2.
  • At least the roller element (54), which is rigidly supported via an axis (58), has a vibrating metal structure, i. that is, between an outer metallic sleeve (62) and an axle-side sleeve (64) an intermediate layer (66) made of elastic material is arranged as vulcanized.
  • the roller element (54) experiences a spring characteristic in such a way that when the switch tongue (40) is adjusted, it slides along it without the foot (10) sliding flatly along the sliding chair, which leads to high friction losses.
  • the following roller element (56) which is also rigidly mounted on an axis (60) but has lower spring properties, is approached almost tangentially when the switch tongue is adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Seats For Vehicles (AREA)
  • Railway Tracks (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Power Steering Mechanism (AREA)

Abstract

The invention relates to a roller arrangement for track sections (10). In order to avoid force peaks when a rail section is displaced, it is proposed that the rail section be supported on at least one roller element (12, 14, 16) irrespective of the position of said rail section.

Description

Beschreibungdescription
RolleneinrichtungRole setup
Die Erfindung bezieht sich auf eine Rolleneinrichtung für eine einem ersten Schienenab¬ schnitt wie Backenschiene zugeordneten, zu diesem entlang eines Verstellwegs verstell¬ baren und an diesem anlegbaren bzw. mit diesem verriegelbaren zweiten Schienen¬ abschnitt wie Weichenzunge umfassend eine Unterlage wie Gleitstuhl für den zweiten Schienenabschnitt sowie diesem entlang des Verstellwegs zugeordnete und vorzugsweise von einer gemeinsamen Halterung ausgehende federnde oder federnd gelagerte Rollen¬ elemente, auf die der zweite Schienenabschnitt zumindest während des Versteilens abstützbar ist.The invention relates to a roller device for a second rail section assigned to a first rail section, such as a stock rail, which can be adjusted along an adjustment path and can be attached to it or locked with it, such as a switch tongue, comprising a base such as a sliding chair for the second rail section as well as resilient or resiliently mounted roller elements associated with it along the adjustment path and preferably emanating from a common holder, on which the second rail section can be supported at least during adjustment.
Eine entsprechende Rolleneinrichtung ist der EP 0 532 860 AI zu entnehmen. Um sicherzustellen, daß eine Weichenzunge auch dann nicht auf einen Gleitstuhl schlägt, wenn eine Schwingungsanregung erfolgt, ist vorgesehen, daß die Rollenelemente auf zu¬ mindest zwei Federelemente unterschiedlicher Kennlinien abgestützt sind, wobei eines der Federelemente eine im wesentlichen konstante Steifigkeit und das andere Feder¬ element eine veränderliche Steifigkeit aufweist. Dabei sinde die Federelemente derart mechanisch miteinander gekoppelt, daß bei durch die Weichenzunge belasteten Rollen¬ elementen jedes Federelement einen federfähigen Zustand aufweist.A corresponding roller device can be found in EP 0 532 860 AI. In order to ensure that a switch tongue does not hit a sliding chair even when vibration is excited, it is provided that the roller elements are supported on at least two spring elements of different characteristics, one of the spring elements having an essentially constant rigidity and the other spring element element has a variable stiffness. The spring elements are mechanically coupled to one another in such a way that each roller element has a resilient state when the roller elements are loaded by the switch tongue.
Durch diese Maßnahmen konnte erstmals sichergestellt werden, daß die Weichenzunge, sofern diese nicht verriegelt ist, bei Schwingungseinleitungen auf den Gleitstuhl nicht schlagen kann. Während des Verstellen, und zwar dann, wenn die Weichenzunge von der verriegelten in die geöffnete Stellung bewegt werden soll, können Kraftspitzen auftreten, die durch das Anfahren des Weichenzungenfußes auf die in etwa 5 mm über den Gleitstuhl vorstehenden Rollenelemente verursacht werden können; denn in verriegelter Stellung ruht die Weichenzunge nach dem Stand der Technik allein auf dem Gleitstuhl und wird erst nach dem Entriegeln und Verstellen der Weichenzunge von den erwähntermaßen im unbelasteten Zustand in etwa 5 mm über den Gleitstuhl vorstehenden Rollen erfaßt und durch diese angehoben.These measures ensured for the first time that the switch tongue, if it is not locked, cannot hit the sliding chair when vibrations are initiated. During the adjustment, namely when the switch tongue is to be moved from the locked to the open position, force peaks can occur which can be caused by the approach of the switch tongue foot to the roller elements projecting approximately 5 mm above the sliding chair; because in the locked position, the switch tongue rests alone on the sliding chair according to the prior art and is only after the unlocking and adjustment of the switch tongue from the mentioned in the unloaded state in about 5 mm above the sliding chair protruding rollers and lifted by them.
Aus der DD 56 536 ist eine Weichenzungenrolleneinrichtung bekannt, die mit einer Rolle verbunden ist, die beim Verschieben der Weichenzunge auf einer Fläche abrollt.From DD 56 536 a switch tongue roller device is known which is connected to a roller which rolls on a surface when the switch tongue is moved.
Nach der DE-AS 10 56 641 wird eine Weichenzunge auf einer Stützrolle verfahren, die im erheblichen Umfang über einen Lagerbock vorsteht.According to DE-AS 10 56 641, a switch tongue is moved on a support roller, which projects to a considerable extent over a bearing block.
Bei einer Weichenzungenrollvorrichtung nach der DD 61 558 wird eine Weichenzunge auf Rollen abgestützt, um die Gleitreibung beim Verstellen zu reduzieren.In a switch tongue rolling device according to DD 61 558, a switch tongue is supported on rollers in order to reduce the sliding friction when adjusting.
Der vorliegenden Erfindung liegt das Problem zugrunde, eine Rolleneinrichtung der eingangs beschriebenen Art derart weiterzubilden, daß mögliche Kraftspitzen beim Umstellen des zu dem ersten Schienenabschnitt verstellbaren zweiten Schienenabschnitts unterbunden bzw. reduziert werden, sofern dieser auf Rollenelementen abgestützt werden soll.The present invention is based on the problem of developing a roller device of the type described at the outset in such a way that possible force peaks are prevented or reduced when the second rail portion, which is adjustable relative to the first rail portion, is converted, provided that this is to be supported on roller elements.
Das Problem wird erfindungsgemäß im wesentlichen dadurch gelöst, daß der zweite Schienenabschnitt in an dem ersten Schienenabschnitt anliegender Stellung auf zu¬ mindest einem der Rollenelemente aufliegt, wobei das (erste) Rollenelement bei anliegendem bzw. verriegeltem zweiten Gleisabschnitt fluchtend zur freien Oberfläche der Unterlage ausgerichtet ist oder über diese geringfügig vorsteht, oder wobei bei über der freien Oberfläche der Unterlage vorstehendem ersten Rollenelement der zweite Gleisabschnitt gewichtslos oder nahezu gewichtslos auf der Unterlage aufliegt. Erfindungsgemäß ruht der zweite Schienenabschnitt wie Weichenzunge fußseitig stets auf einem Rollenelement, also auch in anliegender bzw. verriegelter Position. Hierdurch bedingt erfolgt sowohl eine Verringerung der Gleitkräfte beim Öffnen des zweiten Gleisabschnitts als auch beim Auffahren des Fußes auf die folgenden Rollenelemente. Dies ist insbesondere dann der Fall, wenn die entlang des Verstellwegs angeordneten Rollenelemente von einer gemeinsamen Halterung ausgehen, die ihrerseits über eine elastische Lagerung derart abgestützt ist, daß die Steifigkeit mit zunehmender last¬ aufnehmender Fläche zunimmt. Dabei ist bei an dem ersten Gleisabschnitt anliegendem zweiten Gleisabschnitt die elastische Lagerung derart keilförmig verformt, daß die Höhe schienenseitig geringer als im entferntliegenden Bereich ist. Hierdurch bedingt verlaufen die Rollen quasi entlang einer von dem zweiten Schienenabschnitt aus betrachtet ansteigenden Geraden mit der Folgen, daß der rollenseitige Rand des Fußes des zweiten Gleisabschnitts wie Weichenzunge beim Anfahren des randseitigen Rollenelements diese nahezu tangential berührt, wodurch die unerwünschten Kraftspitzen unterbunden werden.According to the invention, the problem is essentially solved in that the second rail section rests on at least one of the roller elements in the position in contact with the first rail section, the (first) roller element being aligned with the free or locked second track section in alignment with the free surface of the support or protrudes slightly above it, or wherein the first track element protrudes above the free surface of the base, the second track section rests weightless or almost weightless on the base. According to the invention, the second rail section, like the switch tongue, always rests on the foot side on a roller element, that is to say also in the adjacent or locked position. As a result, both the sliding forces are reduced when the second track section is opened and when the foot hits the following roller elements. This is particularly the case when the roller elements arranged along the adjustment path start from a common holder, which in turn is supported by an elastic bearing in such a way that the rigidity increases with increasing load-bearing area. In this case, when the second track section bears against the first track section, the elastic mounting is deformed in a wedge shape in such a way that the height on the track side is less than in the distant area. As a result, the rollers run along a straight line, as viewed from the second rail section, with the consequence that the roller-side edge of the foot of the second track section, like switch tongue, touches the roller element almost tangentially when it approaches the edge-side roller element, thereby preventing the undesired force peaks.
Aufgrund der Federcharakteristik der elastischen Unterstützung, die aus Elastomermate¬ rial besteht, erfolgt während des Versteilens des zweiten Schienenabschnitts ein langsa¬ mes Anheben der Halterung, da während des Verstellens die Fläche, über die die Last abgetragen wird, mit der Folge zunimmt, daß sich die Steifigkeit der elastischen Lagerung erhöht. Infolgedessen ist in abliegender Stellung des zweiten Schienenab¬ schnittes die zu Beginn vorhandene Keilform der elastischen Lagerung verlorengegan¬ gen.Due to the spring characteristic of the elastic support, which consists of elastomer material, the holder is raised slowly during the adjustment of the second rail section, since during the adjustment the surface over which the load is removed increases with the result that increases the rigidity of the elastic mounting. As a result, in the remote position of the second rail section, the wedge shape of the elastic bearing that was present at the beginning has been lost.
Um das Elastomermaterial zu entlasten, sieht eine Weiterbildung der Erfindung vor, daß im schienen seifigen Randbereich der elastischen Lagerung eine mechanische, jedoch Federeigenschaften aufweisende Verstärkung vorhanden ist, die z.B. durch ein Tel¬ lerfedernpaket realisiert werden kann.In order to relieve the elastomer material, a further development of the invention provides that in the seemingly soapy edge region of the elastic mounting there is a mechanical but spring-like reinforcement which e.g. can be realized by a spring package.
Alternativ können aufeinanderfolgende Rollen unterschiedlich gelagert bzw. voneinander abweichende Federeigenschaften derart aufweisen, daß die dem ersten Schienenabschnitt naheliegende Rolle bei Belastung stärker einsinkt als die entferntliegenden.Alternatively, successive rollers can be mounted differently or have different spring properties in such a way that the first rail section obvious role sinks more under load than the distant one.
Schließlich zeichnet sich die Erfindung dadurch aus, daß dann, wenn der zweite Schienenabschnitt bei in bezug auf den ersten Schienenabschnitt abliegender Stellung mit ihrem Fuß zwischen Rollenelemente festgelegt wie festgeklemmt ist, das oberhalb des Fußes verlaufende Rollenelement höhenverstellbar und/oder elastisch gelagert ist.Finally, the invention is characterized in that when the second rail section is fixed with its foot between roller elements with its foot in relation to the first rail section, the roller element running above the foot is height-adjustable and / or elastically supported.
Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich nicht nur aus den Ansprüchen, den diesen zu entnehmenden Merkmalen - für sich und/oder in Kombination -, sondern auch aus der nachfolgenden Beschreibung von der Zeichnung zu entnehmenden bevorzugten Ausführungsbeispielen.Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - by themselves and / or in combination - but also from the following description of preferred exemplary embodiments which can be found in the drawing.
Es zeigen:Show it:
Fig. 1 einen Ausschnitt aus einem Weichenbereich mit einem Abschnitt einesFig. 1 shows a section of a switch area with a portion of
Fußes einer Weichenzungen in ihrer verriegelten Position,Foot of a switch tongue in its locked position,
Fig. 2 der Schienenfuß nach Fig. 1, jedoch bei abliegender Stellung der Wei¬ chenzunge,2 shows the rail foot according to FIG. 1, but with the switch tongue in a remote position,
Fig. 3 einen Ausschnitt einer zweiten Ausführungsform einer Weiche mit anliegender Weichenzunge undFig. 3 shows a detail of a second embodiment of a switch with adjacent switch tongue and
Fig. 4 einen Draufsicht auf den Ausschnitt nach Fig. 3, teilweise weggebrochen, jedoch ohne Schienenabschnitte und teilweise ohne deren Befestigungen.Fig. 4 is a plan view of the detail of FIG. 3, partially broken away, but without rail sections and partially without their fastenings.
In den nachstehenden Figuren, in denen grundsätzlich gleiche Elemente mit gleichen Bezugszeichen versehen sind, wird anhand eines Weichenbereichs die erfindungsgemäße Lehre erläutert. Hierdurch erfolgt jedoch keine Einschränkung, da die die Erfindung prägenden Merkmale in all denjenigen Gleisbereichen realisiert werden können, in denen Schienenabschnitte relativ zueinander verstellbar und gegebenenfalls miteinander verriegelt werden.In the following figures, in which basically the same elements are provided with the same reference numerals, the teaching according to the invention is explained using a switch area. However, this does not result in any restriction, since the features which characterize the invention can be implemented in all those track areas, in which rail sections are adjustable relative to each other and optionally locked together.
In den Fig. 1 und 2 ist rein prinzipiell ein Fuß (10) einer Weichenzunge dargestellt, die in Fig. 1 mit einer nichtdargestellten Backenschiene verriegelt bzw. an dieser angelegt und in Fig. 2 zu dieser abliegend angeordnet ist.1 and 2, a foot (10) of a switch tongue is shown purely in principle, which in FIG. 1 locks or is placed against a stock rail, not shown, and is arranged in FIG.
Entlang ihres Verstellweges V sind Rollenelement (12), (14) und (16) angeordnet, die von einer gemeinsamen Halterung (18) ausgehen, die ihrerseits über eine aus vorzugs¬ weise Elastomer bestehenden elastischen Zwischenlage (20) auf einer Unterlage (22) abgestützt ist.Along their adjustment path V, roller elements (12), (14) and (16) are arranged, which emanate from a common holder (18) which in turn has an elastic intermediate layer (20) consisting of preferably elastomer on a base (22). is supported.
Bei unbelasteten Rollenelementen (12), (14), (16) ragen diese in etwa 5 mm über die Oberfläche einer Abstützung wie Gleitstuhl (24) für die Weichenzunge vor. Wirkt jedoch die Weichenzunge auf die Rollenelemente (12), (14), (16), so werden diese in bezug auf die freie Oberfläche des Gleitstuhls (24) um in etwa 1 mm eingesenkt.In the case of unloaded roller elements (12), (14), (16), they protrude approximately 5 mm above the surface of a support such as a sliding chair (24) for the switch tongue. However, if the switch tongue acts on the roller elements (12), (14), (16), these are recessed by approximately 1 mm with respect to the free surface of the sliding chair (24).
Um beim Verstellen der Weichenzunge (10) Kraftspitzen zu reduzieren, die durch Wechselwirken des vorderen Randes (26) der Weichenzung mit in deren Verstellweg V angeordneten Rollenelementen (14) und (16) auftreten, ist erfindungsgemäß vorgesehen, daß der Fuß (10) auch bei verriegelter bzw. anliegender Weichenzunge auf einer Rolle (12) aufliegt, die bei anliegender bzw. verriegelter Weichenzunge heruntergedrückt und vorzugsweise mit der Oberfläche des Gleitstuhl fluchtet, wie durch die Fig. 1 angedeutet werden soll.In order to reduce force peaks when adjusting the switch tongue (10), which occur due to interaction of the front edge (26) of the switch tongue with roller elements (14) and (16) arranged in its adjustment path V, the invention provides that the foot (10) also when the switch tongue is locked or in contact, it rests on a roller (12) which, when the switch tongue is in contact or locked, is pressed down and preferably flush with the surface of the sliding chair, as is to be indicated by FIG. 1.
Durch das Einsenken des Rollenelementes (12) derart, daß ein Fluchten zum Gleitstuhl (24) erfolgt, wird die elastische Zwischenlage (20) dann, wenn eine Lastabtragung nur in ihrem vorderen Bereich, also über das Rollenelement (12) erfolgt, in einem Umfang zusammengedrückt, daß sich eine Keilform ergibt, die rein prinzipiell der Fig. 1 zu entnehmen ist. Hierdurch bedingt ist die im Verstellweg V der Weichenzunge nachfol¬ gende Rolle (14) stärker als normal in bezug auf die freie Oberfläche des Gleitstuhls (24) eingesenkt, so daß der vordere Rand (26) der Weichenzunge das Rollenelement (14) quasi tangential anfährt, wodurch Kraftspitzen beim Verstellen weitgehend ausge¬ schlossen werden.By lowering the roller element (12) in such a way that it is aligned with the sliding chair (24), the elastic intermediate layer (20) becomes to a extent when load is only transferred in its front area, that is to say via the roller element (12) compressed that there is a wedge shape, which can be seen in principle in Fig. 1. As a result, the roller (14) following in the adjustment path V of the switch tongue is stronger than normal in relation to the free surface of the sliding chair (24) sunk in, so that the front edge (26) of the switch tongue approaches the roller element (14) quasi tangentially, whereby force peaks during adjustment are largely excluded.
Je weiter die Weichenzunge verstellt wird, um so größer wird die Fläche der Zwischen¬ lage (20), über die die Last abgetragen wird, mit der Folge, daß die Steifigkeit zunimmt. Infolgedessen verliert sich die Keilform der Zwischenlage (20), wie die Fig. 2 belegt.The further the switch tongue is adjusted, the larger the area of the intermediate layer (20) over which the load is transferred, with the result that the rigidity increases. As a result, the wedge shape of the intermediate layer (20) is lost, as shown in FIG. 2.
Um die elastische Lagerung (20) in ihrem vorderen schienenseitigen Endbereich (28) zu entlasten, um also einen unerwünschten Verschleiß zu unterbinden, ist des weiteren vor¬ gesehen, daß eine mechanische Verstärkung (30) eingelassen ist, die aus einem Tel¬ lerfedernpaket bestehen kann.In order to relieve the elastic mounting (20) in its front rail-side end region (28), in order to prevent undesired wear, it is further provided that a mechanical reinforcement (30) is incorporated, which consists of a coil spring assembly can.
In abliegender Stellung ist der Schienenfuß (10) zwischen dem unterseitig angeordneten Rollenelement (16) und einem oberen Rollenelement (32) festgelegt bzw. festgeklemmt, welches sich auf der Oberseite (34) des Fußes (10) abstützt.In the remote position, the rail foot (10) is fixed or clamped between the roller element (16) arranged on the underside and an upper roller element (32) which is supported on the upper side (34) of the foot (10).
Um das Festklemmen im gewünschten Umfang sicherzustellen, ist das Rollenelement (32) einerseits über seine Halterung (36) höhenverstellbar und andererseits elastisch gelagert. Hierzu weist die Halterung (36) einen elastischen Abschnitt (38) auf.In order to ensure the clamping to the desired extent, the roller element (32) is height-adjustable on the one hand via its holder (36) and on the other hand is elastically mounted. For this purpose, the holder (36) has an elastic section (38).
In den Fig. 3 und 4 ist eine Weichenzunge (40) mit ihrem Fuß (10) sowie eine zugeord¬ nete Backenschiene (42) dargestellt, die von einer Platte (44) ausgeht und deren Fuß (46) einerseits von einem Klemmplatte (48) und andererseits von einem sich entlang der Oberseite des Schienenfußes (46) erstreckenden Abschnitt (50) einer Halterung (52) festgelegt ist, die ihrerseits mit der Platte (44) verschweißt sein kann.3 and 4, a switch tongue (40) with its foot (10) and an associated cheek rail (42) is shown, which starts from a plate (44) and the foot (46) on the one hand from a clamping plate (48 ) and on the other hand is fixed by a section (50) of a holder (52) which extends along the top of the rail foot (46) and which in turn can be welded to the plate (44).
Von der Halterung (52) gehen im Ausführungsbeispiel zwei Rollenelemente (54) und (56) aus, auf die sich der Fuß (10) der Weichenzunge (40) sowohl in anliegender als auch in abliegender Stellung abstützt. Dabei fluchtet zumindest das erste Rollenelement (54) mit der freien Oberfläche eines nicht dargestellten Gleitstuhls bzw. ragt über dessen Oberfläche geringfügig vor, sofern eine Belastung durch die Weichenzunge (40) erfolgt. Hierdurch ergeben sich die Vorteile, die im Zusammenhang mit dem Aus¬ führungsbeispiel der Fig. 1 und 2 erläutert worden sind.In the exemplary embodiment, two roller elements (54) and (56) extend from the holder (52), on which the foot (10) of the switch tongue (40) is supported both in the adjacent and in the remote position. At least the first roller element (54) is flush with the free surface of a sliding chair, not shown, or projects above it its surface slightly before, if there is a load through the switch tongue (40). This results in the advantages which have been explained in connection with the exemplary embodiment in FIGS. 1 and 2.
Zumindest das Rollenelement (54), das über eine Achse (58) starr gelagert ist, weist einen Schwingmetallaufbau auf, d. h., zwischen einer äußeren metallischen Hülse (62) und einer achsseitigen Hülse (64) ist eine aus elastischem Material bestehende Zwi¬ schenlage (66) angeordnet wie einvulkanisiert. Hierdurch erfährt das Rollenelement (54) eine Federeigenschaft derart, daß beim Verstellen der Weichenzunge (40) ein Entlang¬ gleiten auf diesen erfolgt, ohne daß ein zu hohen Reibungsverlusten führendes flächiges Entlanggleiten des Fußes (10) auf dem Gleitstuhl erfolgt. Gleichzeitig wird erreicht, daß beim Verstellen der Weichenzunge das folgende Rollenelement (56), das ebenfalls über eine Achse (60) starr gelagert ist, jedoch geringere Federeigenschaften aufweist, quasi tangential angefahren wird. At least the roller element (54), which is rigidly supported via an axis (58), has a vibrating metal structure, i. that is, between an outer metallic sleeve (62) and an axle-side sleeve (64) an intermediate layer (66) made of elastic material is arranged as vulcanized. As a result, the roller element (54) experiences a spring characteristic in such a way that when the switch tongue (40) is adjusted, it slides along it without the foot (10) sliding flatly along the sliding chair, which leads to high friction losses. At the same time it is achieved that the following roller element (56), which is also rigidly mounted on an axis (60) but has lower spring properties, is approached almost tangentially when the switch tongue is adjusted.

Claims

Patentansprüche claims
Rolleneinrichtun gRoller device
Rolleneinrichtung für einen einem ersten Schienenabschnitt (42) wie Backen¬ schiene zugeordneten, zu diesem entlang eines Verstellwegs (V) verstellbaren und mit an diesem anlegbaren bzw. diesem verriegelbaren zweiten Schienen¬ abschnitt (40) wie Weichenzunge umfassend eine Unterlage wie Gleitstuhl (24) für den zweiten Schienenabschnitt sowie diesem entlang des Verstellwegs zugeordnete vorzugsweise von einer gemeinsamen Halterung (18) ausgehende federnde oder federnd gelagerte Rollenelemente (12, 14, 16, 54, 56), auf die der zweite Schienenabschnitt zumindest während des Versteilens abstützbar ist. d a d u r c h g e k e n n z e i c h n e t, daß der zweite Schienenabschnitt (10, 40) in an dem ersten Schienenabschnitt (42) anliegender Stellung auf zumindest einem der Rollenelemente (12, 54) aufliegt, wobei das (erste) Rollenelement (12, 54) bei anliegendem bzw. ver¬ riegeltem zweiten Gleisabschnitt (10, 40) fluchtend zur freien Oberfläche der Unterlage (24) ausgerichtet ist oder über diese geringfügig vorsteht, oder wobei bei über der freien Oberfläche der Unterlage (24) vorstehendem ersten Rollen¬ element (12, 54) der zweite Gleisabschnitt (10, 40) gewichtslos oder nahezu gewichtslos auf der Unterlage aufliegt. Roller device for a second rail section (42) assigned to a first rail section, such as a stock rail, which can be adjusted along an adjustment path (V) and with a second rail section (40) which can be attached or locked to it, such as a switch tongue, comprising a base such as a sliding chair (24) for the second rail section as well as resiliently or resiliently mounted roller elements (12, 14, 16, 54, 56) associated with it along the adjustment path and preferably originating from a common holder (18), on which the second rail section can be supported at least during the adjustment. characterized in that the second rail section (10, 40) rests on at least one of the roller elements (12, 54) when in contact with the first rail section (42), the (first) roller element (12, 54) being in contact with or ver¬ locked second track section (10, 40) is aligned or slightly protrudes from the free surface of the base (24), or the second track section (12, 54) protrudes above the free surface of the base (24) (10, 40) lies weightless or almost weightless on the base.
2. Rolleneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die entlang des Verstellwegs (V) angeordneten Rollenelemente von der Halterung (18) ausgehen, die über eine elastische Lagerung (20) derart abge¬ stützt ist, daß deren Steifigkeit mit zunehmender lastaufnehmender Fläche zunimmt.2. Roller device according to claim 1, characterized in that the roller elements arranged along the adjustment path (V) extend from the holder (18), which is supported via an elastic mounting (20) in such a way that its rigidity increases with increasing load-bearing area .
3. Rolleneinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß bei an dem ersten Schienenabschnitt (42) anliegendem zweiten Schienen¬ abschnitt (10, 40) die elastische Lagerung (20) eine Keilform derart aufweist, daß deren Höhe schienenseitig geringer als im entferntliegenden Bereich ist.3. Roller device according to claim 2, characterized in that in the case of the first rail section (42) adjoining second rail section (10, 40), the elastic mounting (20) has a wedge shape in such a way that the height on the rail side is lower than in the remote area .
4. Rolleneinrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die elastische Lagerung (20) aus Elastomermaterial besteht oder dieses enthält.4. Roller device according to at least one of the preceding claims, characterized in that the elastic bearing (20) consists of or contains elastomer material.
5. Rolleneinrichtung nach zumindest Anspruch 4, dadurch gekennzeichnet, daß die Lagerung (20) schienenseitig mit einer mechanischen, Federeigenschaf¬ ten aufweisenden Verstärkung (30) versehen ist.5. Roller device according to at least claim 4, characterized in that the bearing (20) is provided on the rail side with a mechanical, Federeigenschaff¬ th reinforcement (30).
6. Rolleneinrichtung nach zumindest Anspruch 7, dadurch gekennzeichnet, daß die mechanische Verstärkung vorzugsweise ein Tellerfedernpaket ist.6. Roller device according to at least claim 7, characterized in that the mechanical reinforcement is preferably a plate spring package.
7. Rolleneinrichtung nach zumindest einem der vorhergehenden Ansprüche, wobei der zweite Schienenabschnitt in zum ersten Schienenabschnitt abliegender Stellung mit seinem Fuß (10) zwischen Rollenelementen (16, 32) festgelegt wie festgeklemmt ist, dadurch gekennzeichnet, daß das oberhalb des Fußes (34) verlaufende Rollenelement (32) höhenverstell¬ bar und/oder elastisch gelagert ist.7. Roller device according to at least one of the preceding claims, wherein the second rail section in the position remote from the first rail section is fixed with its foot (10) between roller elements (16, 32) as is clamped, characterized in that the roller element (32) extending above the foot (34) is height-adjustable and / or elastically supported.
8. Rolleneinrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß aufeinanderfolgende Rollenelemente (54, 56) unterschiedlich federnd gelagert sind oder unterschiedliche federnde Eigenschaften aufweisen.8. Roller device according to at least one of the preceding claims, characterized in that successive roller elements (54, 56) are mounted differently resiliently or have different resilient properties.
9. Rolleneinrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das dem ersten Schienenabschnitt (42) naheliegende Rollenelement (54) bei Belastung eine geringere Federsteifigkeit als das nachfolgende Rollenelement (56) aufweist. 9. Roller device according to at least one of the preceding claims, characterized in that the roller element (54) which is close to the first rail section (42) has a lower spring stiffness than the subsequent roller element (56) when loaded.
EP95910498A 1994-02-17 1995-02-17 Roller arrangement Expired - Lifetime EP0745161B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4405115 1994-02-17
DE4405115A DE4405115A1 (en) 1994-02-17 1994-02-17 Role setup
PCT/EP1995/000586 WO1995022657A1 (en) 1994-02-17 1995-02-17 Roller arrangement

Publications (2)

Publication Number Publication Date
EP0745161A1 true EP0745161A1 (en) 1996-12-04
EP0745161B1 EP0745161B1 (en) 2002-04-24

Family

ID=6510509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95910498A Expired - Lifetime EP0745161B1 (en) 1994-02-17 1995-02-17 Roller arrangement

Country Status (8)

Country Link
EP (1) EP0745161B1 (en)
AT (1) ATE216744T1 (en)
DE (2) DE4405115A1 (en)
DK (1) DK0745161T3 (en)
ES (1) ES2176320T3 (en)
FI (1) FI963211A0 (en)
PL (1) PL177091B1 (en)
WO (1) WO1995022657A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623269A1 (en) * 1996-06-11 1997-12-18 Schwihag Gmbh Switch tongues
DE102004013347A1 (en) * 2003-08-15 2005-04-14 Bwg Gmbh & Co. Kg Arrangement for switching a tongue rail to a stock rail
DE102004040176C5 (en) * 2004-08-18 2011-01-13 Deutsche Bahn Ag Device for fastening a stock rail on a track-inner side of a tongue device of a switch
US8430364B1 (en) * 2011-11-29 2013-04-30 Eco-Production Vresova Spol. S R O Roller assembly for a railway switch
FR2990703B1 (en) * 2012-05-18 2014-12-05 Vossloh Cogifer TRACK APPARATUS WITH LIMITING FRICTION NEEDLE SLIDING
AT519530B1 (en) * 2016-12-29 2018-12-15 Amstetten Buntmetall DEVICE FOR MOVING A SHIFTER OF A SOFT

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65091A (en) *
US1965803A (en) * 1933-07-25 1934-07-10 Welles M Post Railway switch
DE1056641B (en) * 1957-02-25 1959-05-06 Carl Dan Peddinghaus Kommandit Spring-loaded, height-adjustable roller bearings for switch blades
AU552880B2 (en) * 1984-08-23 1986-06-26 Julia Eva Osredecki Railway line switching frog
CZ196689A3 (en) * 1989-03-30 1993-10-13 Palivovy Kom S P Rail point slide
DE4014249A1 (en) * 1990-05-04 1991-11-07 Butzbacher Weichenbau Gmbh DEVICE FOR LOCKING A SWITCH TONGUE
DE9109182U1 (en) * 1991-07-25 1991-11-14 Bwg Butzbacher Weichenbau Gmbh, 6308 Butzbach, De

Non-Patent Citations (1)

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Title
See references of WO9522657A1 *

Also Published As

Publication number Publication date
ES2176320T3 (en) 2002-12-01
WO1995022657A1 (en) 1995-08-24
DK0745161T3 (en) 2002-08-05
FI963211A (en) 1996-08-16
PL315977A1 (en) 1996-12-23
PL177091B1 (en) 1999-09-30
EP0745161B1 (en) 2002-04-24
ATE216744T1 (en) 2002-05-15
DE59510183D1 (en) 2002-05-29
FI963211A0 (en) 1996-08-16
DE4405115A1 (en) 1995-08-24

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