EP4096982A1 - Arrangement for increasing the adhesion coefficient in a rail vehicle - Google Patents

Arrangement for increasing the adhesion coefficient in a rail vehicle

Info

Publication number
EP4096982A1
EP4096982A1 EP21711771.2A EP21711771A EP4096982A1 EP 4096982 A1 EP4096982 A1 EP 4096982A1 EP 21711771 A EP21711771 A EP 21711771A EP 4096982 A1 EP4096982 A1 EP 4096982A1
Authority
EP
European Patent Office
Prior art keywords
wheel
cleaning device
cleaning
rail
rail vehicle
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
EP21711771.2A
Other languages
German (de)
French (fr)
Other versions
EP4096982B1 (en
Inventor
Alexander Fege
Heiko Meyer
Kilian ROSSIG
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.)
Siemens Mobility GmbH
Original Assignee
Siemens Mobility 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 Siemens Mobility GmbH filed Critical Siemens Mobility GmbH
Publication of EP4096982A1 publication Critical patent/EP4096982A1/en
Application granted granted Critical
Publication of EP4096982B1 publication Critical patent/EP4096982B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143—Wipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage

Definitions

  • the invention relates to an arrangement for increasing the coefficient of adhesion between a wheel of a rail vehicle and a rail on which the rail vehicle is traveling.
  • the coefficient of adhesion is understood to be a ratio between a transferable circumferential force and a normal force.
  • circumferential force is a transferable drive force which acts on the circumference of a rail vehicle wheel and drives or brakes it in the longitudinal direction of the rail vehicle.
  • the normal force is the force that presses on the rail on which the rail vehicle is traveling via the wheel of the rail vehicle. It is generated by the weight of the rail vehicle.
  • the coefficient of adhesion is decisive for a tractive force or braking force of the rail vehicle.
  • a measuring unit to determine a transverse offset of a rail on which a rail vehicle is traveling relative to an effective area of a track conditioning unit.
  • the track conditioning unit is used to supply auxiliary media (sand, water, Air) on the rails used, so that a coefficient of adhesion between the rail and a wheel of the rail vehicle is increased.
  • auxiliary media sand, water, Air
  • the object of the present invention is to provide an arrangement with which a further improvement in the tractive force or the braking force of a rail vehicle is achieved.
  • the invention relates to an arrangement for increasing the coefficient of adhesion in a rail vehicle.
  • the arrangement includes a rail vehicle wheel, a cleaning device and a rail on which the rail vehicle travels.
  • the wheel of the rail vehicle is coupled to the cleaning device so that the cleaning device acts on the wheel when required.
  • the cleaning device is arranged and designed in such a way that moisture adhering to a wheel running surface is at least reduced before the wheel running surface touches the rail. It is thereby achieved that a coefficient of adhesion in the contact area of the wheel running surface with the rail is increased.
  • the cleaning device is arranged and designed in such a way that the moisture adhering to the wheel running surface is removed by drying. In an advantageous development, the cleaning device is arranged and designed in such a way that dirt adhering to the wheel running surface is reduced or removed.
  • the cleaning device has at least one compressed air outlet through which compressed air is directed onto the wheel or onto the wheel running surface.
  • the outlet is arranged at the level of the wheel axle.
  • the cleaning device is designed as a mechanical cleaning system that acts on the wheel running surface.
  • the mechanical cleaning system has a cleaning block or a cleaning brush.
  • the cleaning block or the cleaning brush is movably mounted so that it can be pressed onto the wheel running surface via a coupling system if required.
  • the resulting friction heats the wheel, which causes additional drying of the wheel.
  • the coupling system is designed as a pneumatic system.
  • the cleaning device is coupled to a track conditioning unit.
  • the track conditioning unit applies an auxiliary medium, preferably sand or air, to the rail in order to additionally increase the coefficient of adhesion.
  • the compressed air is passed through a heating device before being discharged via the compressed air outlet.
  • the heating device is designed to heat the compressed air, so that the heated compressed air discharged via the compressed air outlet additionally dries the wheel running surface or the wheel.
  • the heating device is arranged between a compressed air generating device and the compressed air outlet, so that the compressed air reaches the heating device as a compressed air stream.
  • the heating device is arranged and designed in such a way that it encloses the flow of compressed air.
  • the heating device is designed as a heatable pipe or as a heatable copper pipe through which the compressed air volume flow is passed for heating.
  • the heating device is arranged and designed in such a way that the compressed air volume flow flows around the heating device.
  • the heating device is designed as a glow wire which is arranged in the compressed air volume flow in order to heat it.
  • the heating device is designed as a heat exchanger which transfers the heat of a fluid to the compressed air volume flow.
  • the fluid used to supply heat is a transformer oil, which is in a transformer mator cooling circuit of the rail vehicle is used to dissipate heat from the transformer.
  • the fluid used for supplying heat is engine cooling water that is used in an engine cooling circuit of the rail vehicle to remove heat from the engine.
  • the present invention also causes an increase in tractive force or braking force that occurs immediately if the running circle of the wheel changes when the wheel rolls on the rail.
  • the present invention causes an increase in tractive force or braking force that starts immediately when the running circle of the wheel as a whole is not dry or dry enough.
  • the present invention causes an increase in tractive force or braking force that starts immediately when there are lubricating fluid residues of a wheel flange lubrication system on the wheel.
  • the present invention achieves both an increase in tensile force and an improved braking effect in the rail vehicle.
  • An advantageous arrangement of compressed air outlets allows compressed air used for drying or cleaning the wheel to be saved, while at the same time maintaining or increasing the cleaning and drying effects on the wheel.
  • the special contour of the wheel with its conical running surface and the flange are used to effectively remove water and dirt from the wheel.
  • FIG. 1 shows a first embodiment of the present invention and FIG. 2 shows a second embodiment of the present invention.
  • FIG. 1 shows a first embodiment of the present invention based on a chassis FW of a rail vehicle.
  • the chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
  • the wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
  • Two compressed air outlets 4 are directed at the wheel 3, via which compressed air DL reaches a wheel running surface RLF.
  • the two compressed air outlets 4 are arranged opposite one another in relation to the wheel diameter or at the level of the wheel axle, so that they act on the wheel running surface RLF from two sides.
  • FIG. 2 shows a second embodiment of the present invention based on a chassis FW of a rail vehicle.
  • the chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
  • the wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
  • a mechanical cleaning system 5 is pressed onto a wheel running surface RLF, for example via a pneumatic system 6, in order to dry it from moisture or to clean it.
  • the mechanical cleaning system 5 contains a cleaning block or a cleaning brush which act on the wheel 3 for cleaning or drying. The resulting friction heats the wheel 3, which causes additional drying of the wheel 3.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The invention relates to an arrangement for increasing the adhesion coefficient between a wheel of a rail vehicle and a rail on which the rail vehicle is moving. The arrangement includes a rail vehicle wheel, a cleaning device and a rail on which the vehicle is moving. The wheel of the rail vehicle is coupled to the cleaning device so that the cleaning device acts upon the wheel when needed. The cleaning device is designed and arranged such that moisture adhering to a wheel tread is at least reduced before the wheel tread comes in contact with the rail, thereby increasing an adhesion coefficient in the region of contact of the wheel tread with the wheel.

Description

Beschreibung description
Anordnung zur Erhöhung des Kraftschlussbeiwerts bei einem Schienenfahrzeug Arrangement for increasing the coefficient of adhesion in a rail vehicle
Die Erfindung betrifft eine Anordnung zur Erhöhung des Kraft- schlussbeiwerts zwischen einem Rad eines Schienenfahrzeugs und einer vom Schienenfahrzeug befahrenen Schiene. The invention relates to an arrangement for increasing the coefficient of adhesion between a wheel of a rail vehicle and a rail on which the rail vehicle is traveling.
Unter dem Kraftschlussbeiwert wird ein Verhältnis zwischen einer übertragbaren Umfangskraft und einer Normalkraft ver standen. The coefficient of adhesion is understood to be a ratio between a transferable circumferential force and a normal force.
Beim Schienenfahrzeug wird als Umfangskraft eine übertragbare Antriebskraft bezeichnet, die am Umfang eines Schienenfahr- zeug-Rads angreift und dieses in Längsrichtung des Schienen fahrzeugs antreibt oder abbremst. In the case of a rail vehicle, circumferential force is a transferable drive force which acts on the circumference of a rail vehicle wheel and drives or brakes it in the longitudinal direction of the rail vehicle.
Als Normalkraft wird beim Schienenfahrzeug die Kraft bezeich net, die über das Rad des Schienenfahrzeugs auf die vom Schienenfahrzeug befahrene Schiene drückt. Sie wird durch das Gewicht des Schienenfahrzeugs erzeugt. In the case of a rail vehicle, the normal force is the force that presses on the rail on which the rail vehicle is traveling via the wheel of the rail vehicle. It is generated by the weight of the rail vehicle.
Der Kraftschlussbeiwert ist maßgeblich für eine Zugkraft bzw. Bremskraft des Schienenfahrzeugs. The coefficient of adhesion is decisive for a tractive force or braking force of the rail vehicle.
Es ist bekannt, zur Verbesserung der Zugkraft bzw. der Brems kraft eines Schienenfahrzeugs Maßnahmen an den Schienen zu ergreifen, die auch als Gleiskonditionierung bezeichnet wer den. It is known to take measures on the rails to improve the tractive force or the braking force of a rail vehicle, which are also referred to as track conditioning who the.
Aus Dokument WO 2019219223 Al ist bekannt, mit Hilfe einer Messeinheit einen Querversatz einer von einem Schienenfahr zeug befahrenen Schiene relativ zu einem Wirkbereich einer Gleiskonditioniereinheit zu ermitteln. Die Gleiskonditionier einheit wird dazu verwendet, um Hilfsmedien (Sand, Wasser, Luft) auf die befahrenen Schienen aufzubringen, so dass ein Kraftschluss-Beiwert zwischen der Schiene und einem Rad des Schienenfahrzeugs erhöht wird. Durch diese Maßnahmen wird als positiver Effekt der Schlupf zwischen Rad und Schiene bzw. Gleis verringert und übertragbare Brems- und Zugkräfte werden erhöht. It is known from document WO 2019219223 A1 to use a measuring unit to determine a transverse offset of a rail on which a rail vehicle is traveling relative to an effective area of a track conditioning unit. The track conditioning unit is used to supply auxiliary media (sand, water, Air) on the rails used, so that a coefficient of adhesion between the rail and a wheel of the rail vehicle is increased. As a result of these measures, the slip between wheel and rail or track is reduced and the transferable braking and traction forces are increased.
Es ist Aufgabe der vorliegenden Erfindung, eine Anordnung an zugeben, mit der eine weitere Verbesserung der Zugkraft bzw. der Bremskraft eines Schienenfahrzeugs erreicht wird. The object of the present invention is to provide an arrangement with which a further improvement in the tractive force or the braking force of a rail vehicle is achieved.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den abhängigen Ansprü chen angegeben. This object is achieved by the features of claim 1. Advantageous developments are given in the dependent claims.
Die Erfindung betrifft eine Anordnung zur Erhöhung des Kraft- schlussbeiwerts bei einem Schienenfahrzeug. Die Anordnung be inhaltet ein Schienenfahrzeug-Rad, eine Reinigungseinrichtung und eine vom Schienenfahrzeug befahrene Schiene. Das Rad des Schienenfahrzeugs ist mit der Reinigungseinrichtung gekop pelt, so dass die Reinigungseinrichtung bei Bedarf auf das Rad wirkt. Die Reinigungseinrichtung ist derart angeordnet und ausgebildet, dass an einer Radlauffläche anhaftende Feuchtigkeit zumindest reduziert wird, bevor die Radlaufflä che die Schiene berührt. Dadurch wird erreicht, dass ein Kraftschlussbeiwert im Berührbereich der Radlauffläche mit der Schiene erhöht wird. The invention relates to an arrangement for increasing the coefficient of adhesion in a rail vehicle. The arrangement includes a rail vehicle wheel, a cleaning device and a rail on which the rail vehicle travels. The wheel of the rail vehicle is coupled to the cleaning device so that the cleaning device acts on the wheel when required. The cleaning device is arranged and designed in such a way that moisture adhering to a wheel running surface is at least reduced before the wheel running surface touches the rail. It is thereby achieved that a coefficient of adhesion in the contact area of the wheel running surface with the rail is increased.
In einer vorteilhaften Weiterbildung ist die Reinigungsein richtung derart angeordnet und ausgebildet, dass die an der Radlauffläche anhaftende Feuchtigkeit durch Trocknung ent fernt wird. In einer vorteilhaften Weiterbildung ist die Reinigungsein richtung derart angeordnet und ausgebildet, dass an der Rad lauffläche anhaftender Schmutz reduziert oder entfernt wird. In an advantageous development, the cleaning device is arranged and designed in such a way that the moisture adhering to the wheel running surface is removed by drying. In an advantageous development, the cleaning device is arranged and designed in such a way that dirt adhering to the wheel running surface is reduced or removed.
In einer vorteilhaften Weiterbildung weist die Reinigungsein richtung zumindest einen Druckluft-Auslass auf, durch den Druckluft auf das Rad oder auf die Radlauffläche gerichtet ist. In an advantageous development, the cleaning device has at least one compressed air outlet through which compressed air is directed onto the wheel or onto the wheel running surface.
In einer vorteilhaften Weiterbildung ist der Auslass in Höhe der Radachse angeordnet. In an advantageous development, the outlet is arranged at the level of the wheel axle.
In einer vorteilhaften Weiterbildung ist die Reinigungsein richtung als mechanisches Reinigungssystem ausgebildet, das auf die Radlauffläche wirkt. In an advantageous development, the cleaning device is designed as a mechanical cleaning system that acts on the wheel running surface.
In einer vorteilhaften Weiterbildung weist das mechanische Reinigungssystem einen Putzklotz oder eine Putzbürste auf.In an advantageous development, the mechanical cleaning system has a cleaning block or a cleaning brush.
Der Putzklotz oder die Putzbürste ist beweglich gelagert, um bei Bedarf über ein Koppelsystem auf die Radlauffläche ge drückt zu werden. The cleaning block or the cleaning brush is movably mounted so that it can be pressed onto the wheel running surface via a coupling system if required.
Über eine dabei entstehende Reibung wird eine Erwärmung des Rads erzielt, die eine zusätzliche Trocknung des Rads be wirkt. The resulting friction heats the wheel, which causes additional drying of the wheel.
In einer vorteilhaften Weiterbildung ist das Koppelsystem als pneumatisches System ausgebildet. In an advantageous development, the coupling system is designed as a pneumatic system.
In einer vorteilhaften Weiterbildung ist die Reinigungsein richtung mit einer Gleiskonditioniereinheit gekoppelt. Die Gleiskonditioniereinheit bringt ein Hilfsmedium, bevorzugt Sand oder Luft, auf die Schiene auf, um den Kraftschluss- Beiwert zusätzlich zu erhöhen. In einer bevorzugten Weiterbildung wird die Druckluft vor ei nem Ausbringen über den Druckluft-Auslass durch eine Heizein richtung geführt. Die Heizeinrichtung ist zur Erwärmung der Druckluft ausgebildet, so dass die über den Druckluft-Auslass ausgebrachte, erwärmte Druckluft die Radlauffläche bzw. das Rad zusätzlich trocknet. In an advantageous development, the cleaning device is coupled to a track conditioning unit. The track conditioning unit applies an auxiliary medium, preferably sand or air, to the rail in order to additionally increase the coefficient of adhesion. In a preferred development, the compressed air is passed through a heating device before being discharged via the compressed air outlet. The heating device is designed to heat the compressed air, so that the heated compressed air discharged via the compressed air outlet additionally dries the wheel running surface or the wheel.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung zwischen einer Drucklufterzeugungseinrichtung und dem Druck luft-Auslass angeordnet, so dass die Druckluft als Druckluft strom zur Heizeinrichtung gelangt. In a preferred development, the heating device is arranged between a compressed air generating device and the compressed air outlet, so that the compressed air reaches the heating device as a compressed air stream.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung derart angeordnet und ausgebildet, dass sie den Druckluft strom umschließt. In a preferred development, the heating device is arranged and designed in such a way that it encloses the flow of compressed air.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung als heizbares Rohr bzw. als heizbares Kupferrohr ausgebildet, durch das der Druckluftvolumenstrom zur Erwärmung geleitet wird. In a preferred development, the heating device is designed as a heatable pipe or as a heatable copper pipe through which the compressed air volume flow is passed for heating.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung derart angeordnet und ausgebildet, dass die Heizeinrichtung vom Druckluftvolumenstrom umströmt wird. In a preferred development, the heating device is arranged and designed in such a way that the compressed air volume flow flows around the heating device.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung als Glühdraht ausgebildet, der im Druckluftvolumenstrom ange ordnet ist, um diesen zu erwärmen. In a preferred development, the heating device is designed as a glow wire which is arranged in the compressed air volume flow in order to heat it.
In einer bevorzugten Weiterbildung ist die Heizeinrichtung als Wärmetauscher ausgebildet, der Wärme eines Fluids auf den Druckluftvolumenstrom überträgt. In a preferred development, the heating device is designed as a heat exchanger which transfers the heat of a fluid to the compressed air volume flow.
In einer bevorzugten Weiterbildung ist das zur Wärmezuführung verwendete Fluid ein Transformator-Öl, das in einem Transfor- mator-Kühlkreislauf des Schienenfahrzeugs dazu verwendet ist, um Wärme vom Transformator abzuführen. In a preferred development, the fluid used to supply heat is a transformer oil, which is in a transformer mator cooling circuit of the rail vehicle is used to dissipate heat from the transformer.
In einer bevorzugten Weiterbildung ist das zur Wärmezuführung verwendete Fluid ein Motorkühlwasser, das in einem Motor- Kühlkreislauf des Schienenfahrzeugs dazu verwendet ist, um Wärme vom Motor abzuführen. In a preferred development, the fluid used for supplying heat is engine cooling water that is used in an engine cooling circuit of the rail vehicle to remove heat from the engine.
Durch die vorliegende Erfindung wird eine Trocknung bzw. Rei nigung des Rads des Schienenfahrzeugs erreicht. With the present invention, drying or cleaning of the wheel of the rail vehicle is achieved.
Bei der vorliegenden Erfindung wurde erkannt, dass es auch bei einer gereinigten bzw. getrockneten Schiene zu Verzöge rungen beim Einsetzen der Zugkraft- bzw. Bremskraft kommen kann. Diese Verzögerung wird über das Rad des Schienenfahr zeugs bedingt, so dass hier die Erfindung ansetzt. In the case of the present invention, it was recognized that even with a cleaned or dried splint, delays in the onset of the tensile force or braking force can occur. This delay is caused by the wheel of the rail vehicle, so that this is where the invention starts.
Die vorliegende Erfindung bewirkt auch dann eine unmittelbar einsetzende Zugkraft- bzw. Bremskrafterhöhung, wenn sich der Laufkreis des Rads beim Abrollen des Rads auf der Schiene än dert. The present invention also causes an increase in tractive force or braking force that occurs immediately if the running circle of the wheel changes when the wheel rolls on the rail.
Die vorliegende Erfindung bewirkt eine unmittelbar einsetzen de Zugkraft- bzw. Bremskrafterhöhung, wenn der Laufkreis des Rads in seiner Gesamtheit gesehen nicht trocken bzw. trocken genug ist. The present invention causes an increase in tractive force or braking force that starts immediately when the running circle of the wheel as a whole is not dry or dry enough.
Die vorliegende Erfindung bewirkt eine unmittelbar einsetzen de Zugkraft- bzw. Bremskrafterhöhung, wenn sich auf dem Rad Schmierfluid-Reste einer Spurkranzschmieranlage befinden. The present invention causes an increase in tractive force or braking force that starts immediately when there are lubricating fluid residues of a wheel flange lubrication system on the wheel.
Durch die vorliegende Erfindung wird sowohl eine Zugkrafter höhung als auch eine verbesserte Bremswirkung beim Schienen fahrzeug erreicht. Durch eine vorteilhafte Anordnung von Druckluft-Auslässen kann zur Trocknung bzw. Reinigung des Rads verwendete Druck luft gespart werden, bei gleichzeitiger Beibehaltung bzw. Verstärkung der Reinigungs- bzw. Trocknungseffekte am Rad. The present invention achieves both an increase in tensile force and an improved braking effect in the rail vehicle. An advantageous arrangement of compressed air outlets allows compressed air used for drying or cleaning the wheel to be saved, while at the same time maintaining or increasing the cleaning and drying effects on the wheel.
Durch eine vorteilhafte Anordnung der Druckluft-Auslässe wird die spezielle Kontur des Rads mit kegeliger Lauffläche und dem Spurkranz dazu genutzt, um Wasser und Schmutz effektiv vom Rad zu entfernen. Thanks to the advantageous arrangement of the compressed air outlets, the special contour of the wheel with its conical running surface and the flange are used to effectively remove water and dirt from the wheel.
Durch die gekoppelte Verwendung der Reinigungseinrichtung mit der Gleiskonditioniereinheit wird eine schnell einsetzende Verbesserung der Zugkraft- bzw. Bremskraft erreicht. Through the coupled use of the cleaning device with the track conditioning unit, a rapid improvement in the tractive force or braking force is achieved.
Nachfolgend wird die vorliegende Erfindung beispielhaft an hand einer Zeichnung näher erläutert. Dabei zeigt: The present invention is explained in more detail below using a drawing, by way of example. It shows:
FIG 1 eine erste Ausgestaltung der vorliegenden Erfindung und FIG 2 eine zweite Ausgestaltung der vorliegenden Erfindung. 1 shows a first embodiment of the present invention and FIG. 2 shows a second embodiment of the present invention.
FIG 1 zeigt eine erste Ausgestaltung der vorliegenden Erfin dung anhand eines Fahrwerks FW eines Schienenfahrzeugs. 1 shows a first embodiment of the present invention based on a chassis FW of a rail vehicle.
Das Fahrwerk FW beinhaltet einen Rahmen 1, an dem ein Radsatz mit einem Rad 3 befestigt ist. The chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
Das Rad 3 steht in einem Teilbereich, dem Berührumfang BU, mit einer Schiene 2 in Berührung. The wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
Auf das Rad 3 sind zwei Druckluft-Auslässe 4 gerichtet, über die Druckluft DL auf eine Radlauffläche RLF gelangt. Two compressed air outlets 4 are directed at the wheel 3, via which compressed air DL reaches a wheel running surface RLF.
Diese Bestandteile verwirklichen die Reinigungseinrichtung. Die beiden Druckluft-Auslässe 4 sind in Bezug zum Raddurch messer bzw. auf Höhe der Radachse einander gegenüberliegend angeordnet, so dass sie von zwei Seiten auf die Radlauffläche RLF wirken. These components realize the cleaning device. The two compressed air outlets 4 are arranged opposite one another in relation to the wheel diameter or at the level of the wheel axle, so that they act on the wheel running surface RLF from two sides.
Durch die beiden Druckluft-Auslässe 4 wird Feuchtigkeit bzw. Schmutz vom Rad 3 entfernt bzw. wird das Rad 3 über die Rad lauffläche RLF und damit auch der Berührumfang BU getrocknet, um eine Verbesserung der Zugkraft bzw. der Bremskraft zu rea lisieren. Through the two compressed air outlets 4 moisture or dirt is removed from the wheel 3 or the wheel 3 is dried over the wheel running surface RLF and thus also the contact circumference BU in order to improve the tractive force or the braking force to rea lize.
FIG 2 zeigt eine zweite Ausgestaltung der vorliegenden Erfin dung anhand eines Fahrwerks FW eines Schienenfahrzeugs. FIG. 2 shows a second embodiment of the present invention based on a chassis FW of a rail vehicle.
Das Fahrwerk FW beinhaltet einen Rahmen 1, an dem ein Radsatz mit einem Rad 3 befestigt ist. The chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
Das Rad 3 steht in einem Teilbereich, dem Berührumfang BU, mit einer Schiene 2 in Berührung. The wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
Ein mechanisches Reinigungssystem 5 wird, beispielsweise über ein pneumatisches System 6, bei Bedarf auf eine Radlauffläche RLF gepresst, um diese von Feuchtigkeit zu trocknen bzw. um diese zu reinigen. A mechanical cleaning system 5 is pressed onto a wheel running surface RLF, for example via a pneumatic system 6, in order to dry it from moisture or to clean it.
Diese Bestandteile verwirklichen die Reinigungseinrichtung. These components realize the cleaning device.
Das mechanische Reinigungssystem 5 enthält einen Putzklotz oder eine Putzbürste, die auf das Rad 3 zur Reinigung bzw. Trocknung einwirken. Über eine dabei entstehende Reibung wird eine Erwärmung des Rads 3 erzielt, die eine zusätzliche Trocknung des Rads 3 be wirkt. The mechanical cleaning system 5 contains a cleaning block or a cleaning brush which act on the wheel 3 for cleaning or drying. The resulting friction heats the wheel 3, which causes additional drying of the wheel 3.

Claims

Patentansprüche Claims
1. Anordnung zur Erhöhung des Kraftschlussbeiwerts bei einem Schienenfahrzeug, 1. Arrangement to increase the adhesion coefficient in a rail vehicle,
— mit einem Schienenfahrzeug-Rad, mit einer Reinigungsein richtung und mit einer vom Schienenfahrzeug befahrenen Schiene, - with a rail vehicle wheel, with a cleaning device and with a rail used by the rail vehicle,
— bei der das Rad des Schienenfahrzeugs mit der Reini gungseinrichtung gekoppelt ist, so dass die Reinigungs einrichtung bei Bedarf auf das Rad wirkt, - in which the wheel of the rail vehicle is coupled to the cleaning device so that the cleaning device acts on the wheel when required,
— bei der die Reinigungseinrichtung derart angeordnet und ausgebildet ist, dass an einer Radlauffläche anhaftende Feuchtigkeit zumindest reduziert wird, bevor die Rad lauffläche die Schiene berührt. - In which the cleaning device is arranged and designed in such a way that moisture adhering to a wheel running surface is at least reduced before the wheel running surface touches the rail.
— so dass ein Kraftschlussbeiwert im Berührbereich der Radlauffläche mit der Schiene erhöht wird. - so that a coefficient of adhesion in the contact area of the wheel running surface with the rail is increased.
2. Anordnung nach Anspruch 1, bei der die Reinigungseinrich tung derart angeordnet und ausgebildet ist, dass die an der Radlauffläche anhaftende Feuchtigkeit durch Trocknung entfernt wird. 2. Arrangement according to claim 1, in which the device cleaning device is arranged and designed such that the moisture adhering to the wheel tread is removed by drying.
3. Anordnung nach Anspruch 1 oder 2, bei der die Reinigungs einrichtung derart angeordnet und ausgebildet ist, dass an der Radlauffläche anhaftender Schmutz reduziert oder ent fernt wird. 3. Arrangement according to claim 1 or 2, in which the cleaning device is arranged and designed such that dirt adhering to the wheel tread is reduced or removed ent.
4. Anordnung nach Anspruch einem der vorhergehenden Ansprü che, bei der die Reinigungseinrichtung zumindest einen Druckluft-Auslass aufweist, durch den Druckluft auf das Rad oder auf die Radlauffläche gerichtet ist. 4. Arrangement according to claim one of the preceding Ansprü surface, in which the cleaning device has at least one compressed air outlet through which compressed air is directed onto the wheel or onto the wheel running surface.
5. Anordnung nach Anspruch 4, bei der der Druckluft-Auslass in Höhe der Radachse angeordnet ist. 5. Arrangement according to claim 4, wherein the compressed air outlet is arranged at the level of the wheel axle.
6. Anordnung nach einem der Ansprüche 1 bis 3, bei der die Reinigungseinrichtung als mechanisches Reinigungssystem ausgebildet ist, das auf die Radlauffläche wirkt. 6. Arrangement according to one of claims 1 to 3, in which the cleaning device is designed as a mechanical cleaning system which acts on the wheel tread.
7. Anordnung nach Anspruch 6, 7. Arrangement according to claim 6,
— bei der das mechanische Reinigungssystem einen Putzklotz oder eine Putzbürste aufweist, - in which the mechanical cleaning system has a cleaning block or a cleaning brush,
— bei der der Putzklotz oder die Putzbürste beweglich ge lagert ist, um bei Bedarf über ein Koppelsystem auf die Radlauffläche gedrückt zu werden. - in which the cleaning block or the cleaning brush is movably stored in order to be pressed onto the wheel tread via a coupling system if necessary.
8. Anordnung nach Anspruch 7, bei der der Putzklotz oder die Putzbürste in Höhe der Radachse angeordnet ist. 8. Arrangement according to claim 7, wherein the cleaning block or the cleaning brush is arranged at the level of the wheel axle.
9. Anordnung nach Anspruch 7, bei der das Koppelsystem als pneumatisches System ausgebildet ist. 9. Arrangement according to claim 7, wherein the coupling system is designed as a pneumatic system.
10. Anordnung nach einem der vorhergehenden Ansprüche, 10. Arrangement according to one of the preceding claims,
— bei der die Reinigungseinrichtung mit einer Gleiskondi tioniereinheit gekoppelt ist, - in which the cleaning device is coupled with a track conditioning unit,
— bei der die Gleiskonditioniereinheit ein Hilfsmedium, bevorzugt Sand oder Luft, auf die Schiene aufbringt, um den Kraftschluss-Beiwert zusätzlich zu erhöhen. - in which the track conditioning unit applies an auxiliary medium, preferably sand or air, to the rail in order to additionally increase the force-fit coefficient.
EP21711771.2A 2020-03-12 2021-03-03 Arrangement for increasing the adhesion coefficient in a rail vehicle Active EP4096982B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020203183.5A DE102020203183A1 (en) 2020-03-12 2020-03-12 Arrangement for increasing the coefficient of adhesion in a rail vehicle
PCT/EP2021/055242 WO2021180524A1 (en) 2020-03-12 2021-03-03 Arrangement for increasing the adhesion coefficient in a rail vehicle

Publications (2)

Publication Number Publication Date
EP4096982A1 true EP4096982A1 (en) 2022-12-07
EP4096982B1 EP4096982B1 (en) 2024-02-28

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EP21711771.2A Active EP4096982B1 (en) 2020-03-12 2021-03-03 Arrangement for increasing the adhesion coefficient in a rail vehicle

Country Status (6)

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EP (1) EP4096982B1 (en)
CN (1) CN115397713A (en)
DE (1) DE102020203183A1 (en)
ES (1) ES2975089T3 (en)
PL (1) PL4096982T3 (en)
WO (1) WO2021180524A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214556A1 (en) 2021-12-16 2023-06-22 Siemens Mobility GmbH rail vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6924556U (en) 1969-06-18 1969-11-20 Bergische Stahlindustrie DEVICE FOR CLEANING BANDAGES OF RAIL VEHICLE WHEELS
DE7720982U1 (en) 1977-07-05 1978-01-12 Thyssen Industrie Ag, 4300 Essen CLEANING DEVICE FOR THE RUNNING SURFACE OF A RAILWAY WHEEL
DE20319041U1 (en) 2003-12-09 2004-04-15 Dierl, Ludwig, Dipl.-Ing. Train rail cleaning device, comprises press brush, press shoe, air jet nozzle and brush roll
DE102011110051A1 (en) 2011-08-12 2013-02-14 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Pneumatic track cleaning device for rail vehicle, has cleaning section that is arranged in upstream of contact surface of rail to remove particles adhered to contact surface
CN107031668A (en) * 2016-11-25 2017-08-11 青岛思锐科技有限公司 Locomotive tread sweeping control device
WO2019219223A1 (en) 2018-05-17 2019-11-21 Siemens Mobility GmbH Controllable track conditioning unit
EP3781451B1 (en) 2018-05-17 2022-02-23 Siemens Mobility GmbH Track-conditioning unit with device for rail drying
CN109664914A (en) * 2019-01-25 2019-04-23 吕振国 A kind of system for restoring adhesion strength for disc braking freight locomotive

Also Published As

Publication number Publication date
PL4096982T3 (en) 2024-06-10
EP4096982B1 (en) 2024-02-28
DE102020203183A1 (en) 2021-09-16
WO2021180524A1 (en) 2021-09-16
ES2975089T3 (en) 2024-07-03
CN115397713A (en) 2022-11-25

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