EP3420139B1 - Sand removal device - Google Patents

Sand removal device Download PDF

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Publication number
EP3420139B1
EP3420139B1 EP17719528.6A EP17719528A EP3420139B1 EP 3420139 B1 EP3420139 B1 EP 3420139B1 EP 17719528 A EP17719528 A EP 17719528A EP 3420139 B1 EP3420139 B1 EP 3420139B1
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EP
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Prior art keywords
air
rail vehicle
sand
baffle
air flow
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EP17719528.6A
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German (de)
French (fr)
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EP3420139A1 (en
Inventor
Christian KLOPSCH
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Siemens Mobility Austria GmbH
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Siemens Mobility Austria GmbH
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
    • E01H8/105—Pneumatically or hydraulically loosening, removing or dislodging undesirable matter, e.g. removing by blowing, flushing, suction; Application of melting liquids; Loosening or removing by means of heat, e.g. cleaning by plasma torches, drying by burners
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
    • 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
    • B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like

Definitions

  • the invention relates to a sanding device for a rail vehicle
  • sand clearing machines are used which are arranged on motor vehicles and which remove the sand, for example by means of a sand cutter. These machines can also be arranged on the front of a rail vehicle that is traveling slowly along the route.
  • the known sand clearing methods have a disadvantage, however, since they are unable to remove small sand deposits on the rail head. However, these small sand deposits, which do not represent a restriction for driving safety, cause massively increased wear on the rail vehicle wheels.
  • the invention is therefore based on the object of specifying a sanding device for a rail vehicle which is maintenance-free and wear-free and which does not require any connections to electrical or pneumatic systems of the rail vehicle.
  • a sanding device for a rail vehicle which has at least one air guiding device with fastening means for arranging the air guiding device the rail vehicle, wherein the at least one air guiding device is designed such that the air flow caused by the movement of the rail vehicle is directed to a position directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel.
  • sand removal device has no moving parts or brushes and also does not require any connections to electrical or pneumatic systems of the rail vehicle.
  • a desanding device according to the invention can be retrofitted to existing vehicles.
  • the invention provides that the air flow directed directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel comprises a horizontal speed component normal to the direction of movement of the rail vehicle. This is ensured by guiding the air flow in a corresponding direction through the air guiding device.
  • the angle of the air flow in relation to the track is to be chosen so that the sand leaves the track surface before the wheel touches the point in question.
  • the air guiding device can be designed in several ways, with the air guiding device being designed as a tube in accordance with a first variant not claimed is.
  • This pipe extends from the front of the rail vehicle to a position immediately in front of the leading wheel.
  • the end of the pipe facing the wheel can be equipped with a nozzle that narrows the pipe cross-section Track are easy to specify.
  • the air guiding device can be particularly advantageous to design the air guiding device as a tube with a cross-section that decreases in the direction of movement of the air flow.
  • the amount of air passed through the air guiding device per unit of time can be increased and the blow-out pressure and thus the cleaning effect can be increased.
  • the invention also provides for the air guide device to be designed as an air guide plate.
  • an air baffle is to be arranged immediately in front of the leading wheel, which includes appropriate fastening means for fastening to the car body of the rail vehicle.
  • this air baffle consists of a sheet angled to the longitudinal axis of the rail vehicle, which specifically directs the air flow in front of the leading wheel so that sand adhering to the rail head is carried along by this directed air flow and is no longer ground by the wheel.
  • the air guide plate can be designed in a simple design as a sheet-like component, with recesses (bores) being able to be made in the air guide plate for optimal adaptation of the air flow. These holes change the pressure and flow conditions, so that an exact adaptation to a specific rail vehicle is possible Consideration of the most frequently driven speed is possible.
  • the air baffle against which the flow occurs has an overpressure and a negative pressure side, which result from the arrangement in a moving air mass. Both the overpressure arising from the flow (from the side of the air baffle that is exposed to the flow) and the negative pressure on the side not exposed to the flow can be used.
  • the second is advantageous in practical embodiments of the invention, since it allows the air baffle to be arranged closer to the vehicle's longitudinal axis and the installation space for the air baffle must never protrude from the clearance profile of the vehicle. Similar to the wing of an aircraft, the air baffle can also be equipped with a flow-favorable profile, which allows the air flow to be directed particularly precisely, but increases the construction costs for an air baffle.
  • Another embodiment of the invention provides for fittings on the underframe of a rail vehicle to be equipped with aerodynamic properties which direct an air flow directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel. This can be done, for example, by means of appropriately shaped underfloor containers or similar devices.
  • an air guiding device is to be provided for each leading wheel of a rail vehicle.
  • Fig.1 shows by way of example and schematically the end face of a rail vehicle with a sanding device.
  • a view of the end face of a rail vehicle 1 is shown, which has a rail clearer 5 below the car body.
  • Two air inlets 3 are arranged in this rail clearer 5, each opening into a tubular air duct 2 and through which the air flow caused by the movement of the rail vehicle 1 is partially guided into the air ducts 2.
  • the air flow guided in this way is guided through the tubular air ducts 2 in front of the wheels 4.
  • a lane clearer 5 is particularly suitable for connecting an air inlet 3.
  • a Air inlet 3 can also be arranged at a different position on the end face of a rail vehicle 1.
  • Fig. 2 shows an example and schematically the underside of a rail vehicle with a sanding device. It is the underside of the rail vehicle 1 Fig.1 shown. In this view, the structure and function of the desanding device can be seen more clearly.
  • the air flow 6 through the tubular air ducts 2 emerges at the end of the air ducts 2, in front of the respectively assigned wheel 4. This exiting air has a higher pressure than the surrounding still air, which removes the sand adhering to the tracks.
  • the exact design of the openings of the air ducts 2 or optional nozzles at the end of the air ducts 2 are not shown in this schematic diagram.
  • Fig. 3 shows an example and schematically the underside of a rail vehicle with a sanding device by means of a tubular air duct with a narrowing cross section. It is the embodiment from Fig. 2 shown, wherein the tubular air duct 2 has a curved course with a narrowing cross section.
  • FIG. 4 shows an example and schematically a rail vehicle with a desanding device from an air baffle in a side view.
  • a side view of a rail vehicle 1 is shown in the front area, which is similar to that in FIGS Figs. 1 to 3
  • the embodiment shown comprises a web clearer 5.
  • a desanding device in the form of an air baffle 7 is arranged between the lane scraper 5 and the leading wheel 4.
  • the air baffle 7 is by means of a fastening 8 releasably attached to the car body of the rail vehicle 1.
  • Fig. 5 shows an example and schematically the underside of a rail vehicle with a desanding device made of an air baffle. It is the underside of the rail vehicle 1 Fig. 4 shown.
  • the arrangement of the air guide plates 7 angled to the longitudinal axis of the rail vehicle 1 can be seen, which leads to an air flow 6 oriented transversely to the direction of travel directly in front of the wheels 4.
  • the air baffles 7 are angled in such a way that the sending air flow 6 is caused by the negative pressure arising on the air baffle 7.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Entsandungseinrichtung für ein SchienenfahrzeugThe invention relates to a sanding device for a rail vehicle

Stand der TechnikState of the art

Ablagerungen von Sand auf Gleisen können für den Bahnbetrieb hinderlich sein. Insbesondere in Wüstengebieten können Gleise mit Sand verweht sein, was eine aufwendige Entfernung des Sandes erforderlich macht, da zu große Sandmengen auch zu Entgleisungen führen können. Dazu werden Sandräummaschinen eingesetzt, die an Kraftfahrzeugen angeordnet sind und welche den Sand beispielsweise mittels einer Sandfrässchleuder entfernen. Diese Maschinen können auch an der Stirnseite eines Schienenfahrzeugs angeordnet sein, welches die Strecke langsam befährt. Die bekannten Sandräumverfahren weisen jedoch einen Nachteil auf, da sie kleine Sandablagerungen am Schienenkopf nicht zu entfernen vermögen. Diese kleinen Sandablagerungen, welche für die Fahrsicherheit keine Einschränkung darstellen rufen jedoch einen massiv erhöhten Verschleiß an den Schienenfahrzeugrädern hervor. So ist das typische Intervall zwischen zwei Reprofilierungen (Nachbearbeitung des Radprofils) von 150.000km bei Fahrten in Wüstengebieten auf ca. 30.000km reduziert. Besonders nachteilig ist, dass diese minimalen Sandablagerungen durch Wind kontinuierlich neu geschaffen werden und eine Reinigungsfahrt zur Entfernung dieser minimalen Sandablagerungen mit einer Sandräummaschine sowohl unwirtschaftlich als auch erfolglos wäre. Es liegt nahe, daher die Schienenfahrzeuge selbst mit einer Einrichtung zur Entfernung geringer Sandablagerungen von den Gleisen auszustatten. Dadurch kann das Problem des kontinuierlich neu auf die Gleise eingebrachten Sandes gelöst werden, da eben das Schienenfahrzeug selbst diese Ablagerungen unmittelbar und während der Fahrt entfernt. Dazu können beispielsweise Bürsten eingesetzt werden, welche vor der führenden Achse angeordnet sind. Eine weitere Möglichkeit der Sandentfernung besteht durch das Ausblasen von im Fahrzeug erzeugter Druckluft. Alle diese Verfahren bedingen große Änderungen an dem Fahrzeug und rufen sowohl einen erhöhten Wartungsaufwand als auch einen erhöhten Energieverbrauch hervor. US 2016/060833 A1 beschreibt ein Schienenfahrzeug nach dem Oberbegriff des Anspruchs 1.Deposits of sand on tracks can be a hindrance to rail operations. In desert areas in particular, tracks can be blown with sand, which makes it necessary to remove the sand at great expense, since excessive amounts of sand can also lead to derailments. For this purpose, sand clearing machines are used which are arranged on motor vehicles and which remove the sand, for example by means of a sand cutter. These machines can also be arranged on the front of a rail vehicle that is traveling slowly along the route. The known sand clearing methods have a disadvantage, however, since they are unable to remove small sand deposits on the rail head. However, these small sand deposits, which do not represent a restriction for driving safety, cause massively increased wear on the rail vehicle wheels. The typical interval between two reprofiling (post-processing of the wheel profile) is reduced from 150,000 km when driving in desert areas to approx. 30,000 km. It is particularly disadvantageous that these minimal sand deposits are continuously created anew by the wind and a cleaning trip to remove these minimal ones Sand depositing with a sand clearing machine would be both uneconomical and unsuccessful. It therefore makes sense to equip the rail vehicles themselves with a device for removing small amounts of sand from the tracks. This solves the problem of sand being continuously brought onto the tracks, since the rail vehicle itself removes these deposits immediately and during the journey. For this purpose, brushes can be used, for example, which are arranged in front of the leading axis. Another way of removing sand is to blow out compressed air generated in the vehicle. All of these methods require major changes to the vehicle and cause both increased maintenance costs and increased energy consumption. US 2016/060833 A1 describes a rail vehicle according to the preamble of claim 1.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt daher die Aufgabe zugrunde, eine Entsandungseinrichtung für ein Schienenfahrzeug anzugeben, welche wartungs- und verschleißfrei ist und welche keinerlei Anschlüsse zu elektrischen oder pneumatischen Systemen des Schienenfahrzeugs erfordert.The invention is therefore based on the object of specifying a sanding device for a rail vehicle which is maintenance-free and wear-free and which does not require any connections to electrical or pneumatic systems of the rail vehicle.

Die Aufgabe wird durch eine Entsandungseinrichtung mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand untergeordneter Ansprüche.The object is achieved by a desanding device with the features of claim 1. Advantageous configurations are the subject of subordinate claims.

Dem Grundgedanken der Erfindung nach wird eine Entsandungseinrichtung für ein Schienenfahrzeug aufgebaut, welche mindestens eine Luftleiteinrichtung mit Befestigungsmitteln zur Anordnung der Luftleiteinrichtung an dem Schienenfahrzeug umfasst, wobei die mindestens eine Luftleiteinrichtung so ausgebildet ist, dass die durch die Bewegung des Schienenfahrzeugs hervorgerufene Luftströmung an eine Position unmittelbar vor die Räder einer in Fahrtrichtung führenden Achse des Schienenfahrzeugs geleitet wird.According to the basic idea of the invention, a sanding device for a rail vehicle is constructed which has at least one air guiding device with fastening means for arranging the air guiding device the rail vehicle, wherein the at least one air guiding device is designed such that the air flow caused by the movement of the rail vehicle is directed to a position directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel.

Dadurch ist der Vorteil erzielbar, den am Schienenkopf anhaftenden Sand entfernen zu können und ein Zermahlen dieses Sandes durch die Räder des Schienenfahrzeugs verhindern zu können. Solcherart wird der Verschleiß der Räder verringert. Ein weiterer wesentlicher Vorteil der Erfindung liegt darin, dass die Entsandungseinrichtung keinerlei bewegte Teile oder Bürsten aufweist und auch keinerlei Anschlüsse zu elektrischen oder pneumatischen Systemen des Schienenfahrzeugs erfordert. Weiters kann eine erfindungsgemäße Entsandungseinrichtung bei bestehenden Fahrzeugen nachgerüstet werden.This has the advantage of being able to remove the sand adhering to the rail head and of being able to prevent this sand from being ground by the wheels of the rail vehicle. In this way, the wear on the wheels is reduced. Another essential advantage of the invention is that the sand removal device has no moving parts or brushes and also does not require any connections to electrical or pneumatic systems of the rail vehicle. Furthermore, a desanding device according to the invention can be retrofitted to existing vehicles.

Die Erfindung sieht vor, dass die unmittelbar vor die Räder einer in Fahrtrichtung führenden Achse des Schienenfahrzeugs geleitete Luftströmung eine horizontale Geschwindigkeitskomponente normal zur Bewegungsrichtung des Schienenfahrzeugs umfasst. Dies wird durch eine Führung des Luftstroms in eine entsprechende Richtung durch die Luftleiteinrichtung gewährleistet. Dabei ist der Winkel der Luftströmung in Bezug auf das Gleis so zu wählen, dass der Sand die Gleisoberfläche verläßt bevor das Rad die betreffende Stelle berührt.The invention provides that the air flow directed directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel comprises a horizontal speed component normal to the direction of movement of the rail vehicle. This is ensured by guiding the air flow in a corresponding direction through the air guiding device. The angle of the air flow in relation to the track is to be chosen so that the sand leaves the track surface before the wheel touches the point in question.

Die Luftleiteinrichtung kann auf mehrere Arten ausgebildet sein, wobei entsprechend einer ersten nicht beanspruchten Variante die Luftleiteinrichtung als Rohr ausgebildet ist. Dieses Rohr erstreckt sich von der Stirnseite des Schienenfahrzeugs bis zu einer Position unmittelbar vor dem führenden Rad. Das dem Rad zugewandten Ende des Rohres kann mit einer den Rohrquerschnitt verengenden Düse ausgestattet sein, wodurch die Ausströmungseigenschaften, insb. der Auftreffpunkt und Auftreffwinkel der Luftströmung auf das Gleis gut vorgebbar sind.The air guiding device can be designed in several ways, with the air guiding device being designed as a tube in accordance with a first variant not claimed is. This pipe extends from the front of the rail vehicle to a position immediately in front of the leading wheel. The end of the pipe facing the wheel can be equipped with a nozzle that narrows the pipe cross-section Track are easy to specify.

Dabei kann es besonders vorteilhaft sein, die Luftleiteinrichtung als Rohr mit in Bewegungsrichtung der Luftströmung verkleinerndem Querschnitt auszuführen.It can be particularly advantageous to design the air guiding device as a tube with a cross-section that decreases in the direction of movement of the air flow.

Solcherart kann die pro Zeiteinheit durch die Luftleiteinrichtung geführte Luftmenge gesteigert werden und der Ausblasdruck und somit die Reinigungswirkung erhöht werden.In this way, the amount of air passed through the air guiding device per unit of time can be increased and the blow-out pressure and thus the cleaning effect can be increased.

Ferner sieht die Erfindung vor, die Luftleiteinrichtung als Luftleitblech auszuführen. Dazu ist unmittelbar vor dem führenden Rad ein Luftleitblech anzuordnen, welches entsprechende Befestigungsmittel für die Befestigung an dem Wagenkasten des Schienenfahrzeugs umfasst. Dieses Luftleitblech besteht im einfachsten Fall aus einem zur Längsachse des Schienenfahrzeugs gewinkelten Blech, welches die Luftströmung vor dem führenden Rad gezielt lenkt, sodass am Schienenkopf haftender Sand von dieser gelenkten Luftströmung mitgenommen wird und nicht mehr durch das Rad zermahlen wird.The invention also provides for the air guide device to be designed as an air guide plate. For this purpose, an air baffle is to be arranged immediately in front of the leading wheel, which includes appropriate fastening means for fastening to the car body of the rail vehicle. In the simplest case, this air baffle consists of a sheet angled to the longitudinal axis of the rail vehicle, which specifically directs the air flow in front of the leading wheel so that sand adhering to the rail head is carried along by this directed air flow and is no longer ground by the wheel.

Das Luftleitblech kann in einfacher Ausführung als blechförmiger Bauteil ausgeführt werden, wobei zur optimalen Anpassung der Luftströmung Ausnehmungen (Bohrungen) in das Luftleitblech eingebracht werden können. Diese Bohrungen verändern die Druck- und Strömungsverhältnisse, sodass eine exakte Anpassung an ein konkretes Schienenfahrzeug unter Berücksichtigung der häufigst gefahrenen Geschwindigkeit möglich ist.The air guide plate can be designed in a simple design as a sheet-like component, with recesses (bores) being able to be made in the air guide plate for optimal adaptation of the air flow. These holes change the pressure and flow conditions, so that an exact adaptation to a specific rail vehicle is possible Consideration of the most frequently driven speed is possible.

Das angeströmte Luftleitblech weist dabei eine Überdruck- und eine Unterdruckseite auf, welche sich aus der Anordnung in einer bewegten Luftmasse ergibt. Es können sowohl der aus der Strömung entstehende Überdruck (von der angeströmten Seite des Luftleitblechs) zur Entsandung eingesetzt werden als auch der Unterdruck an der nichtangeströmten Seite. Zweiteres ist in praktischen Ausführungen der Erfindung vorteilhaft, da dadurch das Luftbleitblech näher der Fahrzeuglängsachse angeordnet werden kann und der Bauraum für das Luftleitblech keinesfalls aus dem Lichtraumprofil des Fahrzeugs ragen darf. Das Luftleitblech kann auch, ähnlich wie die Tragfläche eines Flugzeugs mit einem strömungsgünstigen Profil ausgestattet sein, was eine besonders exakte Leitung der Luftströmung erlaubt, den Bauaufwand für ein Luftleitblech jedoch erhöht.The air baffle against which the flow occurs has an overpressure and a negative pressure side, which result from the arrangement in a moving air mass. Both the overpressure arising from the flow (from the side of the air baffle that is exposed to the flow) and the negative pressure on the side not exposed to the flow can be used. The second is advantageous in practical embodiments of the invention, since it allows the air baffle to be arranged closer to the vehicle's longitudinal axis and the installation space for the air baffle must never protrude from the clearance profile of the vehicle. Similar to the wing of an aircraft, the air baffle can also be equipped with a flow-favorable profile, which allows the air flow to be directed particularly precisely, but increases the construction costs for an air baffle.

Eine weitere Ausführungsform der Erfindung sieht vor, Einbauten am Untergestell eines Schienenfahrzeugs mit aerodynamischen Eigenschaften auszustatten, welche eine Luftströmung unmittelbar vor die Räder einer in Fahrtrichtung führenden Achse des Schienenfahrzeugs leitet. Dies kann beispielsweise durch entsprechend geformte Unterflurcontainer oder ähnliche Einrichtungen erfolgen.Another embodiment of the invention provides for fittings on the underframe of a rail vehicle to be equipped with aerodynamic properties which direct an air flow directly in front of the wheels of an axle of the rail vehicle leading in the direction of travel. This can be done, for example, by means of appropriately shaped underfloor containers or similar devices.

Es sind typischerweise je führendem Rad eines Schienenfahrzeugs eine Luftleiteinrichtung vorzusehen. Bei längeren Fahrzeugen, bzw. Zugzusammenstellungen kann es vorteilhaft sein, mehrere Entsandungseinrichtungen je Zugzusammenstellung vorzusehen.Typically, an air guiding device is to be provided for each leading wheel of a rail vehicle. In the case of longer vehicles or train compositions, it can be advantageous to provide several desanding devices for each train composition.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Es zeigen beispielhaft:

  • Fig.1 Schienenfahrzeug mit Entsandungseinrichtung mittels rohrförmiger Luftführung, Stirnseite (nicht beansprucht).
  • Fig.2 Schienenfahrzeug mit Entsandungseinrichtung mittels rohrförmiger Luftführung, Unterseite (nicht beansprucht)
  • Fig.3 Schienenfahrzeug mit Entsandungseinrichtung mittels rohrförmiger Luftführung mit verengendem Querschnitt, Unterseite (nicht beansprucht).
  • Fig.4 Schienenfahrzeug mit Entsandungseinrichtung mittels Luftleitblech, Seitenansicht.
  • Fig.5 Schienenfahrzeug mit Entsandungseinrichtung mittels Luftleitblech, Unterseite.
It shows as an example:
  • Fig.1 Rail vehicle with desanding device by means of tubular air duct, front side (not claimed).
  • Fig. 2 Rail vehicle with desanding device by means of tubular air duct, underside (not stressed)
  • Fig. 3 Rail vehicle with desanding device by means of a tubular air duct with a narrowing cross-section, underside (not claimed).
  • Fig. 4 Rail vehicle with desanding device using an air baffle, side view.
  • Fig. 5 Rail vehicle with desanding device using an air baffle, underside.

Ausführung der ErfindungImplementation of the invention

Fig.1 zeigt beispielhaft und schematisch die Stirnseite eines Schienenfahrzeugs mit einer Entsandungseinrichtung. Es ist eine Ansicht auf die Stirnseite eines Schienenfahrzeugs 1 dargestellt, welches unterhalb des Wagenkastens einen Bahnräumer 5 aufweist. In diesem Bahnräumer 5 sind zwei Lufteinlässe 3 angeordnet, welche in je eine rohrförmige Luftführung 2 münden und durch welche die durch die Bewegung des Schienenfahrzeugs 1 hervorgerufene Luftströmung teilweise in die Luftführungen 2 geleitet wird. Die solcherart geleitete Luftströmung wird durch die rohrförmigen Luftführungen 2 vor die Räder 4 geleitet. Ein Bahnräumer 5 ist besonders gut für die Anbindung eines Lufteinlasses 3 geeignet. Für Fahrzeuge ohne Bahnräumer 5 oder wenn eine Anordnung am Bahnräumer 5 nicht gewünscht ist, kann ein Lufteinlass 3 auch an anderer Position an der Stirnseite eines Schienenfahrzeugs 1 angeordnet werden. Fig.1 shows by way of example and schematically the end face of a rail vehicle with a sanding device. A view of the end face of a rail vehicle 1 is shown, which has a rail clearer 5 below the car body. Two air inlets 3 are arranged in this rail clearer 5, each opening into a tubular air duct 2 and through which the air flow caused by the movement of the rail vehicle 1 is partially guided into the air ducts 2. The air flow guided in this way is guided through the tubular air ducts 2 in front of the wheels 4. A lane clearer 5 is particularly suitable for connecting an air inlet 3. For vehicles without a lane clearer 5 or if an arrangement on the lane clearer 5 is not desired, a Air inlet 3 can also be arranged at a different position on the end face of a rail vehicle 1.

Fig.2 zeigt beispielhaft und schematisch die Unterseite eines Schienenfahrzeugs mit einer Entsandungseinrichtung. Es ist die Unterseite des Schienenfahrzeugs 1 aus Fig.1 dargestellt. In dieser Ansicht sind der Aufbau und die Funktion der Entsandungseinrichtung deutlicher erkennbar. Die Luftströmung 6 durch die rohrförmigen Luftführungen 2 tritt am Ende der Luftführungen 2, vor dem jeweils zugeordneten Rad 4 aus. Diese austretende Luft weist einen höheren Druck als die umgebende ruhende Luft auf, wodurch der auf den Gleisen haftende Sand entfernt wird. Die exakte Ausführung der Öffnungen der Luftführungen 2 oder optionale Düsen am Ende der Luftführungen 2 sind in dieser Prinzipskizze nicht dargestellt. Fig. 2 shows an example and schematically the underside of a rail vehicle with a sanding device. It is the underside of the rail vehicle 1 Fig.1 shown. In this view, the structure and function of the desanding device can be seen more clearly. The air flow 6 through the tubular air ducts 2 emerges at the end of the air ducts 2, in front of the respectively assigned wheel 4. This exiting air has a higher pressure than the surrounding still air, which removes the sand adhering to the tracks. The exact design of the openings of the air ducts 2 or optional nozzles at the end of the air ducts 2 are not shown in this schematic diagram.

Fig.3 zeigt beispielhaft und schematisch die Unterseite eines Schienenfahrzeugs mit Entsandungseinrichtung mittels rohrförmiger Luftführung mit verengendem Querschnitt. Es ist das Ausführungsbeispiel aus Fig. 2 dargestellt, wobei die rohrförmige Luftführung 2 einen gebogenen Verlauf mit verengendem Querschnitt aufweist. Fig. 3 shows an example and schematically the underside of a rail vehicle with a sanding device by means of a tubular air duct with a narrowing cross section. It is the embodiment from Fig. 2 shown, wherein the tubular air duct 2 has a curved course with a narrowing cross section.

Fig.4 zeigt beispielhaft und schematisch ein Schienenfahrzeug mit einer Entsandungseinrichtung aus einem Luftleitblech in einer Seitenansicht. Es ist eine Seitenansicht auf ein Schienenfahrzeug 1 im Stirnbereich dargestellt, welches ähnlich wie bei dem in den Fig. 1 bis 3 gezeigten Ausführungsbeispiel einen Bahnräumer 5 umfasst. Zwischen dem Bahnräumer 5 und dem führenden Rad 4 ist eine Entsandungseinrichtung in Form eines Luftleitblechs 7 angeordnet. Das Luftleitblech 7 ist mittels einer Befestigung 8 an dem Wagenkasten des Schienenfahrzeugs 1 lösbar befestigt. Fig. 4 shows an example and schematically a rail vehicle with a desanding device from an air baffle in a side view. A side view of a rail vehicle 1 is shown in the front area, which is similar to that in FIGS Figs. 1 to 3 The embodiment shown comprises a web clearer 5. A desanding device in the form of an air baffle 7 is arranged between the lane scraper 5 and the leading wheel 4. The air baffle 7 is by means of a fastening 8 releasably attached to the car body of the rail vehicle 1.

Fig.5 zeigt beispielhaft und schematisch die Unterseite eines Schienenfahrzeugs mit einer Entsandungseinrichtung aus einem Luftleitblech. Es ist die Unterseite des Schienenfahrzeugs 1 aus Fig. 4 dargestellt. Dabei ist die zur Längsachse des Schienenfahrzeugs 1 gewinkelte Anordnung der Luftleitbleche 7 erkennbar, welche zu einer quer zur Fahrtrichtung orientierten Luftströmung 6 unmittelbar vor den Rädern 4 führt. In gezeigtem Ausführungsbeispiel sind die Luftleitbleche 7 so gewinkelt, dass die entsandende Luftströmung 6 durch den am Luftleitblech 7 entstehenden Unterdruck hervorgerufen wird. Fig. 5 shows an example and schematically the underside of a rail vehicle with a desanding device made of an air baffle. It is the underside of the rail vehicle 1 Fig. 4 shown. The arrangement of the air guide plates 7 angled to the longitudinal axis of the rail vehicle 1 can be seen, which leads to an air flow 6 oriented transversely to the direction of travel directly in front of the wheels 4. In the exemplary embodiment shown, the air baffles 7 are angled in such a way that the sending air flow 6 is caused by the negative pressure arising on the air baffle 7.

Liste der BezeichnungenList of names

11
SchienenfahrzeugRail vehicle
22
Rohrförmige LuftführungTubular air duct
33
LufteinlaßAir intake
44th
Radwheel
55
BahnräumerTrack clearers
66th
LuftströmungAir flow
77th
LuftleitblechAir baffle
88th
BefestigungAttachment

Claims (2)

  1. Rail vehicle (1), comprising a sand removal device having at least one air conducting device (2, 7) for the production of an air flow, which comprises fastening means (8) for arranging the air conducting device (2, 7) on the rail vehicle (1), wherein the air conducting device (7) is embodied as an air baffle, characterised in that the at least one air conducting device (2, 7) is embodied such that the air flow (6) produced by the movement of the rail vehicle (1) is conducted to a position directly in front of the wheels (4) of a leading axle of the rail vehicle (1) in the direction of travel, and wherein the air flow (6) produced has a horizontal speed component normal to the direction of movement of the rail vehicle (1), wherein the air baffle is arranged at an angle to the longitudinal axis of the rail vehicle (1).
  2. Rail vehicle (1) according to claim 1,
    characterised in that the air baffle (7) is fitted with recesses.
EP17719528.6A 2016-04-22 2017-04-18 Sand removal device Active EP3420139B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50357/2016A AT518603B1 (en) 2016-04-22 2016-04-22 Entsandungseinrichtung
PCT/EP2017/059110 WO2017182428A1 (en) 2016-04-22 2017-04-18 Sand removal device

Publications (2)

Publication Number Publication Date
EP3420139A1 EP3420139A1 (en) 2019-01-02
EP3420139B1 true EP3420139B1 (en) 2020-10-07

Family

ID=58632955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17719528.6A Active EP3420139B1 (en) 2016-04-22 2017-04-18 Sand removal device

Country Status (4)

Country Link
EP (1) EP3420139B1 (en)
AT (1) AT518603B1 (en)
ES (1) ES2835077T3 (en)
WO (1) WO2017182428A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3052704B1 (en) * 2013-10-01 2017-12-06 Volvo Truck Corporation Electric vehicle wth a particle removing arrangement
CN108867535B (en) * 2018-06-11 2019-12-03 诸暨东白电农农业开发有限公司 A kind of clear husky device for desert section rail
CN109837861B (en) * 2019-03-21 2020-11-10 石家庄铁道大学 Bucket wheel type track sand removing vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US521544A (en) * 1894-06-19 Snow-cleaning attachment for locomotive-engines
US2374312A (en) * 1944-02-25 1945-04-24 Tackett Elijah Railroad track cleaner
JPS5024494B2 (en) * 1972-06-15 1975-08-15
EP3052704B1 (en) * 2013-10-01 2017-12-06 Volvo Truck Corporation Electric vehicle wth a particle removing arrangement
US9631332B2 (en) * 2014-08-28 2017-04-25 Electro-Motive Diesel, Inc. Movable sand plow for locomotive

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AT518603A1 (en) 2017-11-15
EP3420139A1 (en) 2019-01-02
WO2017182428A1 (en) 2017-10-26
AT518603B1 (en) 2018-02-15
ES2835077T3 (en) 2021-06-21

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