EP1918458A1 - Apparatus for grinding profiles by means of a rotating grinding belt - Google Patents

Apparatus for grinding profiles by means of a rotating grinding belt Download PDF

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Publication number
EP1918458A1
EP1918458A1 EP06022880A EP06022880A EP1918458A1 EP 1918458 A1 EP1918458 A1 EP 1918458A1 EP 06022880 A EP06022880 A EP 06022880A EP 06022880 A EP06022880 A EP 06022880A EP 1918458 A1 EP1918458 A1 EP 1918458A1
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EP
European Patent Office
Prior art keywords
belt
profile
lamellae
grinding
slats
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Granted
Application number
EP06022880A
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German (de)
French (fr)
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EP1918458B1 (en
Inventor
Frank Mevert
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Mevert Maschinenbau & Cokg GmbH
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Mevert Maschinenbau & Cokg GmbH
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Priority to AT06022880T priority Critical patent/ATE444399T1/en
Priority to DE502006004994T priority patent/DE502006004994D1/en
Priority to EP06022880A priority patent/EP1918458B1/en
Publication of EP1918458A1 publication Critical patent/EP1918458A1/en
Application granted granted Critical
Publication of EP1918458B1 publication Critical patent/EP1918458B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • E01B31/175—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding using grinding belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape

Definitions

  • the invention relates to a device for grinding a profile, in particular a rail intended for rail vehicles, by means of an endlessly circulating in the direction of the main extension of the profile abrasive belt, which can be pressed against the profile with an adjustable biasing force.
  • Such a device is used, for example, in track construction for rail maintenance for maintenance purposes.
  • the grinding process is preceded by a milling, the achievable in this way machining results necessarily require a rework by grinding the tread. Otherwise, chatter marks would be undesirably, especially acoustically noticeable
  • the DE 41 19 525 A1 also already discloses a device for grinding and leveling the running surface of a railroad track after a repair by build-up welding.
  • the device has a movable pressure shoe, which comes into contact and pressure on the inside of an abrasive belt, and supporting contact bearing, which come, connected to the frame, in pressing on the rail on both sides of the working zone.
  • the movement of the Andschreibschuhs in the direction of the abrasive belt under the action of a dial, which acts by means of a spring is limited by a stop on the orientation of the active side of the abrasive belt on a straight line, the passes through the support points of the support bearing on the rail. In this way, the grinding belt, whose active side is parallel to the direction of the rail, eliminates only the projection of the leveling order metal.
  • JP 2003-053655 A a device for grinding a rail with a running in the longitudinal direction of the rail grinding belt, wherein the abrasive belt is pressed by means of a pressure element on the rail.
  • EP 0 444 242 A1 - Is also a device for grinding a rail running surface with an aligned parallel to the rail longitudinal axis grinding belt known, wherein between the pressure rollers and the grinding belt another designed as a belt Andschreib belt is arranged.
  • the device for belt grinding according to the DE 30 20 393 A1 is equipped with a sanding belt and a flat belt arranged between the sanding belt and a support disk.
  • the invention has for its object to provide a way to improve the achievable by means of the device by the grinding surface quality.
  • the processing speed should be increased at the same time.
  • the grinding belt can be applied against the profile by means of a plurality of lamellae which are movable relative to one another in a longitudinal direction of the profile, in particular made of a metal material, whereby adjacent lamellae enclose a gap.
  • a substantially improved pressure distribution and thus a reduced maximum thermal load is achieved by optimally the grinding belt is acted upon by each blade with the same force.
  • this makes it possible to adapt the abrasive belt to the cross-sectional shape of the profile in an ideal manner and to press against the profile surface accordingly.
  • the lamellae have, for example, a material thickness of between 1 and 3 mm, in particular 2 mm and a gap of less than 1 mm.
  • the amount or timing of the biasing force may be adjustable based on operating conditions and environmental conditions sensed by a controller.
  • the lamellae could also each have a grinding belt facing, friction-reducing sliding surface. As a result, the wear and at the same time an undesirable heat development are significantly reduced.
  • the slats could be arranged perpendicular to the nearest surface area of the profit corresponding to an optionally existing curvature. It is particularly useful, however, when the slats are arranged to be movable in parallel planes, so that by the parallel arrangement a constant gap dimension can be realized independently of a possible relative movement of adjacent slats. At the same time a uniform heat dissipation is ensured.
  • the molded body has a comb-like guide for the slats through which the slats are movably arranged in mutually spaced planes, so as to ensure compliance with the required gap size with little effort.
  • the shaped body has a stop arranged in front of or behind the lamellae in the longitudinal direction of the profile, in addition an undesired displacement of the lamellae in the longitudinal direction of the profile is avoided.
  • the erforderiche heat dissipation can be achieved via a corresponding design of the surface in particular by means of cooling fins.
  • a development of the invention in which the device has a cooling device by means of which a coolant flow can be fed into the respective gap between the lamellae is particularly meaningful.
  • the device has a device for ionizing the slats, so as to ensure by appropriate forces of attraction the precipitation of the air-water mixture on the thus ionized lamellae. This not only reduces water consumption, but also ensures uniform wetting of the entire fin surfaces.
  • the lamellae could be elastically deformable, in particular thus yielding, so as to keep the transmittable preload force constant over the cross-sectional width of the profile.
  • it is particularly reliable if one or more lamellae can be acted upon together with the required preload force so as to be able to adjust the preload force in a controlled manner. In particular, so the removal during belt grinding over the entire cross section can be adjusted as needed.
  • each blade could be biased by means of a separate actuating means relative to the profile, so as to realize an active grinding. It is particularly simple, however, when the device comprises a fluidbeaufschlagbaren pressure body for generating the biasing force, which is arranged between the profile end faces of the fins and a support surface of the shaped body so as to load each blade with almost matching biasing force due to the uniform pressure distribution of the pressure hull and thereby being able to realize a passive grinding.
  • the molded body can be acted upon in a rapid time sequence with a variable biasing force.
  • the machining quality is improved in the grinding process in a simple manner that the biasing force is not set substantially constant as in the prior art according to the desired Abtrags oriental, but a continuous change between predetermined limits is subjected.
  • chips and particles are not pressed about in the surface of the rail and thereby damaged, but the chips and particles get out during the very short but sufficient phase of the reduced biasing force automatically from the processing zone laterally out.
  • the erosion force is not reduced by the variable biasing force, but rather is improved, which can be attributed to the low heat generation and the improved wear behavior of the abrasive belt.
  • the shaped body can be driven with an oscillating movement, wherein the frequency is dimensioned such that, taking into account the contact surface of the grinding belt with the rail of each surface region of the rail is subjected to both the first and the second biasing force, ie in particular a full machining cycle undergoes the continuously variable biasing force.
  • the device may comprise a compressed air pulsator, by which the pneumatic cylinder driving the shaped body is subjected to a vibration. Due to the separation of functions of the transmission of the biasing force on the one hand and the introduction of the pulsating movement on the other hand, a particularly diverse, almost unlimited adjustability of the respective desired machining program is achieved.
  • a particularly promising modification is also provided by the fact that a sliding element is provided between the grinding belt and the lamellae which, for example, can also be designed to run endlessly around and can be moved to the grinding belt almost without slip.
  • the wear behavior of the abrasive belt, as well as the heat development can be further optimized.
  • an undesirable effect due to the increased in the seam region of the endless abrasive belt abruptly increased material thickness of the abrasive belt and the associated increased resistance upon impact of this interface to the molding can be avoided by the sliding belt is used to compensate for such material thickness differences.
  • the sliding belt can in turn be used as a wear material, so as to concentrate the wear occurring in the relatively inexpensive interchangeable sliding belt.
  • the grinding belt for setting different parallel tracks in different working positions can be fixed transversely to the feed movement of the grinding belt, so that due to the detected degree of wear of the grinding belt a parallel displacement are made transversely to the rail can.
  • continuously changing tracks can be realized, wherein the grinding belt can be moved in an oscillating manner in the transverse direction.
  • the abrasive belt leading pulleys are moved axially transversely to the rail.
  • the abrasive belt is preferably guided by means of a drive roller and at least two pulleys in a horizontal plane, of which at least one guide roller has a plurality of circumferentially arranged groove-shaped recesses, which serves similar to a known tire profile of the intake of liquid due to the belt tension by the deflection of the Abrasive belt can escape.
  • a drive roller and at least two pulleys in a horizontal plane, of which at least one guide roller has a plurality of circumferentially arranged groove-shaped recesses, which serves similar to a known tire profile of the intake of liquid due to the belt tension by the deflection of the Abrasive belt can escape.
  • the device could be designed for stationary processing of rail sections.
  • a modification is particularly advantageous in which the device is equipped with a mobile chassis movable along a rail and can thus be used, for example, as a trailer or in self-propelled operation, following a previous Fräsbearbeitungsvörraum.
  • the processing of the rail is preferably carried out in the opposite direction.
  • a plurality of abrasive belts for simultaneous or alternative use can be provided in the device, wherein for the temporal processing of parallel rails at least two by means of a respective shaped body against the respective profile prestressed abrasive belts are preferably realized.
  • further functional elements of the device can be provided multiple times or even assigned to several abrasive belts at the same time.
  • a common drive can be provided.
  • a device 1 for grinding a profile 2 embodied as a rail is illustrated in more detail with reference to FIGS. 1 and 2, which show a side view and an enlarged front view.
  • the device 1 has an endlessly revolving in the direction of the main extension of the profile 2 sanding belt 3, which is pressed in a horizontal region between two pulleys 4, 5 by means of a plurality of parallel, extending in the longitudinal direction of the profile 2 fins 6 thereto.
  • the slats 6 are arranged vertically movable and undeliverable by means of a pneumatically actuated pressure pad 7 with a biasing force 8 in the direction of the profile 2.
  • the device 1 In order to be able to act on the slats 6 with a variable biasing force 8 and thereby achieve an optimal adaptation of the grinding belt 3 to the profile, individual slats 6 can be acted upon with a different biasing force.
  • the device 1 a cooling device 9, through which a flow of coolant into the respective gap 10 between the slats 6 can be fed.
  • the slats 6 are additionally equipped with recesses 11, through which a lateral heat dissipation can be realized.
  • various parallel tracks are provided transversely to the direction of rotation 12 of the sanding belt 3.
  • the device 1 is moved by means of a chassis, not shown, on the rail 2 in the feed direction 14, so that there is a machining in reverse grinding.
  • the apparatus 1 further has a catching device 15 arranged in the feed direction 14 behind the guide roller 4 for abrasive particles and released grinding emissions.

Abstract

The device (1) has a rotating grinding belt (3), which is pressed with an adjustable pre tensioning force against a profile (2). The grinding belt is attached against the profile by multiple lamellae (6) moving into a mold relative to each other and extending in longitudinal direction of the profile. The adjacent lamellae comprise a slot, where the lamellae are movably arranged in parallel levels.

Description

Die Erfindung betrifft eine Vorrichtung zum Schleifen eines Profils, insbesondere einer für schienengebundene Fahrzeuge bestimmten Schiene, mittels eines in Richtung der Haupterstreckung des Profils endlos umlaufenden Schleifbands, welches mit einer einstellbaren Vorspannkraft gegen das Profil anpressbar ist.The invention relates to a device for grinding a profile, in particular a rail intended for rail vehicles, by means of an endlessly circulating in the direction of the main extension of the profile abrasive belt, which can be pressed against the profile with an adjustable biasing force.

Eine solche Vorrichtung wird beispielsweise im Gleisbau bei der Schienenbearbeitung zu instandhaltungszwecken eingesetzt. Der Schleifbearbeitung voraus geht dabei eine Fräsbearbeitung, wobei die auf diese Weise erzielbaren Bearbeitungsergebnisse zwingend eine Nachbearbeitung durch Schleifen der Lauffläche erfordern. Anderenfalls würden sich Rattermarken in unerwünschter Weise, insbesondere akustisch bemerkbar machenSuch a device is used, for example, in track construction for rail maintenance for maintenance purposes. The grinding process is preceded by a milling, the achievable in this way machining results necessarily require a rework by grinding the tread. Otherwise, chatter marks would be undesirably, especially acoustically noticeable

Durch die CH 670 667 A5 ist bereits eine Vorrichtung zum Schleifen einer Schiene mit einem parallel zur Schienen-Längsachse laufenden Schleifband bekannt. Das Schleifband wird beim Schleifen durch einen profilierten Gleitschuh gegen die zu schleifende Schiene gepresst.By the CH 670 667 A5 already a device for grinding a rail with a running parallel to the longitudinal axis rail grinding belt is known. The abrasive belt is pressed during grinding by a profiled sliding shoe against the rail to be ground.

Die DE 41 19 525 A1 offenbart auch bereits eine Vorrichtung zum Schleifen und Egalisieren der Laufoberfläche einer Eisenbahnschiene nach einer Ausbesserung durch Auftragsschweißung. Die Vorrichtung hat einen bewegbaren Andrückschuh, der in Kontakt und Andruck auf die Innenseite eines Schleifbands kommt, und Stütz-Berührungslager aufweist, die, verbunden mit dem Rahmen, in Andruck auf die Schiene beiderseits der Arbeitszone kommen. Der Bewegungsweg des Andrückschuhs in Richtung auf das Schleifband unter der Einwirkung eines Einstellrades, das mittels einer Feder wirkt, wird durch einen Anschlag auf die Ausrichtung der aktiven Seite des Schleifbandes auf eine gerade Linie begrenzt, die durch die Abstützpunkte der Stützlager auf der Schiene hindurchgeht. Auf diese Weise eliminiert das Schleifband, dessen aktive Seite parallel zur Richtung der Schiene verläuft, nur das Überstehende des den Ausgleich schaffenden Auftragsmetalls.The DE 41 19 525 A1 also already discloses a device for grinding and leveling the running surface of a railroad track after a repair by build-up welding. The device has a movable pressure shoe, which comes into contact and pressure on the inside of an abrasive belt, and supporting contact bearing, which come, connected to the frame, in pressing on the rail on both sides of the working zone. The movement of the Andrückschuhs in the direction of the abrasive belt under the action of a dial, which acts by means of a spring is limited by a stop on the orientation of the active side of the abrasive belt on a straight line, the passes through the support points of the support bearing on the rail. In this way, the grinding belt, whose active side is parallel to the direction of the rail, eliminates only the projection of the leveling order metal.

Weiterhin bezieht sich auch die US 5,997,391 A auf eine Vorrichtung zum Schleifen einer Schiene mit einem parallel zur Schienen-Längsachse laufenden Schleifband. Das Schleifband wird durch einen vorgespannten Schuh auf die Schiene gedrückt.Furthermore, the refers also US 5,997,391 A to a device for grinding a rail with an abrasive belt running parallel to the rail longitudinal axis. The sanding belt is pressed onto the rail by a preloaded shoe.

Außerdem betrifft auch die JP 2003-053655 A eine Vorrichtung zum Schleifen einer Schiene mit einem in Längsrichtung der Schiene laufenden Schleifband, bei der das Schleifband mittels eines Druckelementes auf die Schiene gedrückt wird.In addition, the concerns also JP 2003-053655 A a device for grinding a rail with a running in the longitudinal direction of the rail grinding belt, wherein the abrasive belt is pressed by means of a pressure element on the rail.

Durch die EP 0 444 242 A1 - ist weiterhin auch eine Vorrichtung zum Schleifen einer Schienenlauffläche mit einem parallel zur Schienenlängsachse ausgerichteten Schleifband bekannt, wobei zwischen den Andrückrollen und dem Schleifband ein weiteres als Andrückriemen ausgebildetes Band angeordnet ist.By the EP 0 444 242 A1 - Is also a device for grinding a rail running surface with an aligned parallel to the rail longitudinal axis grinding belt known, wherein between the pressure rollers and the grinding belt another designed as a belt Andrück belt is arranged.

Die Vorrichtung zum Bandschleifen gemäß der DE 30 20 393 A1 ist mit einem Schleifband und einem zwischen dem Schleifband und einer Stützscheibe angeordneten Flachband ausgestattet.The device for belt grinding according to the DE 30 20 393 A1 is equipped with a sanding belt and a flat belt arranged between the sanding belt and a support disk.

Ferner bezieht sich auch die DE 20 2005 012 147 U1 auf eine Vorrichtung zum Schleifen einer Schiene mit einer entsprechend dem Schienenkopf geformten Kontaktrolle, durch die ein Schleifband gegen diesen angedrückt wird.Furthermore, also refers to DE 20 2005 012 147 U1 to a device for grinding a rail with a contact roller shaped according to the rail head, by means of which an abrasive belt is pressed against it.

In der Praxis treten bei solchen, auf dem Funktionsprinzip eines in Längsrichtung der Schiene umlaufenden Schleifbandes basierenden, Vorrichtungen oftmals thermische Probleme auf, die zu einer erheblichen Beeinträchtigung der Oberflächenqualität aufgrund des damit verbundenen erhöhten Verschleißes des Schleifbands führen können. Insbesondere erfordern solche Bearbeitungsfehler eine Nachbearbeitung der Schiene, die vor allem aufgrund der sehr begrenzt verfügbaren Bearbeitungszeit von Bahnschienen mit einem erheblichen Aufwand verbunden ist.In practice, such devices based on the principle of operation of a grinding belt running in the longitudinal direction of the rail often have thermal problems which can lead to a considerable deterioration of the surface quality due to the associated increased wear of the grinding belt. In particular, such processing errors require post-processing of the rail, which is associated with a considerable effort, mainly due to the very limited available processing time of railroad tracks.

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, die mittels der Vorrichtung durch die Schleifbearbeitung erzielbare Oberflächenqualität zu verbessern. Insbesondere soll dabei zugleich die Bearbeitungsgeschwindigkeit gesteigert werden.The invention has for its object to provide a way to improve the achievable by means of the device by the grinding surface quality. In particular, the processing speed should be increased at the same time.

Diese Aufgabe wird erfindungsgemäß mit einer Vorrichtung gemäß den Merkmalen des Anspruchs 1 gelöst. Die Unteransprüche betreffen besonders zweckmäßige Weiterbildungen der Erfindung.This object is achieved with a device according to the features of claim 1. The subclaims relate to particularly expedient developments of the invention.

Erfindungsgemäß ist das Schleifband mittels einer Vielzahl in einem Formkörper relativ zueinander beweglichen, sich jeweils in Längsrichtung des insbesondere aus einem Metallwerkstoff hergestellten Profils erstreckenden Lamellen gegen das Profil anlegbar, wobei benachbarte Lamellen einen Spalt einschließen. Hierdurch wird einerseits eine wesentlich verbesserte Druckverteilung und damit eine reduzierte maximale thermische Belastung erreicht, indem in optimaler Weise das Schleifband durch jede Lamelle mit derselben Kraft beaufschlagt wird. Zudem gelingt es dadurch, das Schleifband an die Querschnittsform des Profils in idealer Weise anzupassen und entsprechend gegen die Profiloberfläche anzupressen. Die Lamellen weisen dabei beispielsweise eine Materialstärke zwischen 1 und 3 mm, insbesondere 2 mm und ein Spaltmaß von weniger als 1 mm auf. Der Betrag oder der zeitliche Verlauf der Vorspannkraft kann aufgrund der durch eine Steuereinheit erfassten Betriebsbedingungen und Umgebungsbedingungen einstellbar sein. Die Lammellen könnten zudem jeweils eine dem Schleifband zugewandte, reibmindernde Gleitfläche aufweisen. Hierdurch werden der Verschleiß und zugleich eine unerwünschte Wärmeentwicklung wesentlich vermindert.According to the invention, the grinding belt can be applied against the profile by means of a plurality of lamellae which are movable relative to one another in a longitudinal direction of the profile, in particular made of a metal material, whereby adjacent lamellae enclose a gap. As a result, on the one hand a substantially improved pressure distribution and thus a reduced maximum thermal load is achieved by optimally the grinding belt is acted upon by each blade with the same force. In addition, this makes it possible to adapt the abrasive belt to the cross-sectional shape of the profile in an ideal manner and to press against the profile surface accordingly. The lamellae have, for example, a material thickness of between 1 and 3 mm, in particular 2 mm and a gap of less than 1 mm. The amount or timing of the biasing force may be adjustable based on operating conditions and environmental conditions sensed by a controller. The lamellae could also each have a grinding belt facing, friction-reducing sliding surface. As a result, the wear and at the same time an undesirable heat development are significantly reduced.

Die Lamellen könnten dabei senkrecht zur dem nächstliegenden Oberflächenbereich des Profits entsprechend einer gegebenenfalls Vorhandenen Wölbung angeordnet werden. Besonders zweckmäßig ist es hingegen, wenn die Lamellen in parallelen Ebenen beweglich angeordnet sind, so dass durch die parallele Anordnung ein gleich bleibendes Spaltmaß unabhängig von einer möglichen Relativbewegung benachbarter Lamellen realisiert werden kann. Zugleich wird dadurch eine gleichmäßige Wärmeableitung sichergestellt.The slats could be arranged perpendicular to the nearest surface area of the profit corresponding to an optionally existing curvature. It is particularly useful, however, when the slats are arranged to be movable in parallel planes, so that by the parallel arrangement a constant gap dimension can be realized independently of a possible relative movement of adjacent slats. At the same time a uniform heat dissipation is ensured.

Eine andere, ebenfalls besonders vorteilhafte Ausgestaltung der vorliegenden Erfindung wird dadurch erreicht, dass der Formkörper eine kammartige Führung für die Lamellen aufweist, durch welche die Lamellen in zueinander beabstandeten Ebenen beweglich angeordnet sind, um so mit geringem Aufwand die Einhaltung des erforderlichen Spaltmaßes zu gewährleisten.Another, likewise particularly advantageous embodiment of the present invention is achieved in that the molded body has a comb-like guide for the slats through which the slats are movably arranged in mutually spaced planes, so as to ensure compliance with the required gap size with little effort.

Dabei wird gemäß einer weiteren praxisgerechten Ausgestaltung, bei welcher der Formkörper einen in Längsrichtung des Profils vor oder hinter den Lamellen angeordneten Anschlag hat, zusätzlich eine unerwünschte Verlagerung der Lamellen in Längsrichtung des Profils vermieden.In this case, according to another practical embodiment, in which the shaped body has a stop arranged in front of or behind the lamellae in the longitudinal direction of the profile, in addition an undesired displacement of the lamellae in the longitudinal direction of the profile is avoided.

Die erfordertiche Wärmeabfuhr kann über eine entsprechende Gestaltung der Oberfläche insbesondere mittels Kühlrippen erreicht werden. Besonders sinnvoll ist hingegen eine Weiterbildung der Erfindung, bei welcher die Vorrichtung eine Kühleinrichtung aufweist, durch die ein Kühlmittelstrom in den jeweiligen Spalt zwischen den Lamellen zuführbar ist. Hierzu dienen Auslassöffnungen für den Kühlstrom, beispielsweise Wasser, durch welche das Kühlmittel feinstverteilt auf die Oberflächen der Lamellen gelangt, um so die schnelle Wärmeabfuhr sicherzustellen.The erforderiche heat dissipation can be achieved via a corresponding design of the surface in particular by means of cooling fins. In contrast, a development of the invention in which the device has a cooling device by means of which a coolant flow can be fed into the respective gap between the lamellae is particularly meaningful. For this purpose serve outlet openings for the cooling flow, for example water, through which the coolant passes finely distributed on the surfaces of the slats, so as to ensure the rapid heat dissipation.

Besonders effzient ist es auch, wenn als Kühlmittel ein Luft-Wassergemisch in den jeweiligen Spalt zwischen den Lamellen zuführbar ist, welches sich als feiner Nebel auf den Lamellen niederschlägt und dadurch die Wärmeabfuhr weiter beschleunigt. Zur Erzeugung des Nebels dient dabei Druckluft, die mit einzelnen Wassertropfen versetzt wird und auf die Lamellenoberfläche gelenkt wird.It is also particularly efficient if a mixture of air and water can be fed into the respective gap between the lamellae as coolant, which precipitates on the lamellae as a fine mist, thereby further accelerating heat dissipation. To generate the mist compressed air is used, which is mixed with individual drops of water and is directed onto the lamellar surface.

Dabei ist es besonders Erfolg versprechend, wenn die Vorrichtung eine Einrichtung zur lonisierung der Lamellen aufweist, um so durch entsprechende Anziehungskräfte den Niederschlag des Luft-Wassergemischs auf den derart ionisierten Lamellen sicherzustellen. Hierdurch wird nicht nur der Wasserverbrauch reduziert, sondern zusätzlich eine gleichmäßige Benetzung der gesamten Lamellenoberflächen sichergestellt.It is particularly promising, if the device has a device for ionizing the slats, so as to ensure by appropriate forces of attraction the precipitation of the air-water mixture on the thus ionized lamellae. This not only reduces water consumption, but also ensures uniform wetting of the entire fin surfaces.

Die Lamellen könnten elastisch verformbar, insbesondere also nachgiebig sein, um so die übertragbare Vorspannkraft über die Querschnittsbreite des Profils konstant zu halten. Besonders zuverlässig ist es hingegen, wenn einzelne oder mehrere Lamellen gemeinsam mit der erforderlichen Vorspannkraft beaufschlagbar sind, um so die Vorspannkraft gesteuert einstellen zu können. Insbesondere kann so also der Abtrag beim Bandschleifen über den gesamten Querschnitt bedarfsweise eingestellt werden.The lamellae could be elastically deformable, in particular thus yielding, so as to keep the transmittable preload force constant over the cross-sectional width of the profile. On the other hand, it is particularly reliable if one or more lamellae can be acted upon together with the required preload force so as to be able to adjust the preload force in a controlled manner. In particular, so the removal during belt grinding over the entire cross section can be adjusted as needed.

Zur Einstellung der Vorspannkraft könnte jede Lamelle mittels eines separaten Stellmittels gegenüber dem Profil vorspannbar sein, um so ein aktives Schleifen zu realisieren. Besonders einfach ist es hingegen, wenn die Vorrichtung einen fluidbeaufschlagbaren Druckkörper zur Erzeugung der Vorspannkraft aufweist, der zwischen dem Profil abgewandten Stirnseiten der Lamellen und einer Stützfläche des Formkörpers angeordnet ist, um so aufgrund der gleichmäßigen Druckverteilung des Druckkörpers jede Lamelle mit nahezu übereinstimmender Vorspannkraft belasten und dadurch ein passives Schleifen realisieren zu können.To adjust the biasing force each blade could be biased by means of a separate actuating means relative to the profile, so as to realize an active grinding. It is particularly simple, however, when the device comprises a fluidbeaufschlagbaren pressure body for generating the biasing force, which is arranged between the profile end faces of the fins and a support surface of the shaped body so as to load each blade with almost matching biasing force due to the uniform pressure distribution of the pressure hull and thereby being able to realize a passive grinding.

Dabei ist gemäß einer weiteren Ausgestaltungsform der Formkörper in einer schnellen zeitlichen Folge mit einer veränderlichen Vorspannkraft beaufschlagbar. Hierdurch wird in einfacher Weise die Bearbeitungsqualität bei der Schleifbearbeitung dadurch verbessert, dass die Vorspannkraft nicht wie beim Stand der Technik entsprechend der gewünschten Abtragsleistung im Wesentlichen konstant eingestellt wird, sondern einer stetigen Veränderung zwischen vorbestimmten Grenzwerten unterworfen wird. Durch diese wechselnde Vorspannkraft werden Späne und Partikel nicht etwa in die Oberfläche der Schiene eingedrückt und diese dadurch beschädigt, sondern die Späne und Partikel gelangen während der sehr kurzen, aber hinreichenden Phase der reduzierten Vorspannkraft selbsttätig aus der Bearbeitungszone seitlich heraus. Zugleich hat sich gezeigt, dass durch die veränderliche Vorspannkraft die Abtragsleistung nicht etwa reduziert wird, sondern vielmehr verbessert ist, was auf die geringe Wärmeentwicklung und das verbesserte Verschleißverhalten des Schleifbandes zurückgeführt werden kann.In this case, according to a further embodiment of the molded body can be acted upon in a rapid time sequence with a variable biasing force. As a result, the machining quality is improved in the grinding process in a simple manner that the biasing force is not set substantially constant as in the prior art according to the desired Abtragsleistung, but a continuous change between predetermined limits is subjected. By this changing biasing force chips and particles are not pressed about in the surface of the rail and thereby damaged, but the chips and particles get out during the very short but sufficient phase of the reduced biasing force automatically from the processing zone laterally out. At the same time it has been shown that the erosion force is not reduced by the variable biasing force, but rather is improved, which can be attributed to the low heat generation and the improved wear behavior of the abrasive belt.

Hierzu kann der Formkörper mit einer oszillierenden Bewegung antreibbar sein, wobei die Frequenz derart bemessen ist, dass unter Berücksichtigung der Kontaktfläche des Schleifbandes mit der Schiene jeder Oberflächenbereich der Schiene sowohl mit der ersten als auch mit der zweiten Vorspannkraft beaufschlagt wird, insbesondere also einen vollen Bearbeitungszyklus der kontinuierlich veränderlichen Vorspannkraft durchläuft.For this purpose, the shaped body can be driven with an oscillating movement, wherein the frequency is dimensioned such that, taking into account the contact surface of the grinding belt with the rail of each surface region of the rail is subjected to both the first and the second biasing force, ie in particular a full machining cycle undergoes the continuously variable biasing force.

Weiterhin kann die Vorrichtung einen Druckluftpulsator aufweisen, durch welchen der den Formkörper antreibende Pneumatikzylinder einer Schwingung unterworfen wird. Durch die Funktionstrennung der Übertragung der Vorspannkraft einerseits und der Einleitung der pulsierenden Bewegung andererseits wird eine besonders vielfältige, nahezu unbegrenzte Einstellbarkeit des jeweils gewünschten Bearbeitungsprogrammes erreicht.Furthermore, the device may comprise a compressed air pulsator, by which the pneumatic cylinder driving the shaped body is subjected to a vibration. Due to the separation of functions of the transmission of the biasing force on the one hand and the introduction of the pulsating movement on the other hand, a particularly diverse, almost unlimited adjustability of the respective desired machining program is achieved.

Eine besonders viel versprechende Abwandlung wird auch dadurch geschaffen, dass zwischen dem Schleifband und den Lamellen ein Gleitelement vorgesehen ist, welches beispielsweise auch endlos umlaufend ausgeführt und nahezu schlupffrei zu dem Schleifband bewegt werden kann. Das Verschleißverhalten des Schleifbandes, ebenso wie die Wärmeentwicklung kann dadurch weiter optimiert werden. Zudem kann ein unerwünschter Effekt aufgrund der im Nahtbereich des endlosen Schleifbandes sprunghaft erhöhten Materialstärke des Schleifbands und des damit einhergehenden erhöhten Widerstandes beim Auftreffen dieser Nahtstelle auf den Formkörper vermieden werden, indem das Gleitband zum Ausgleich solcher Materialstärkendifferenzen genutzt wird. Ferner kann das Gleitband seinerseits als Verschleißmaterial verwendet werden, um so den auftretenden Verschleiß in dem vergleichsweise kostengünstig austauschbaren Gleitband zu konzentrieren.A particularly promising modification is also provided by the fact that a sliding element is provided between the grinding belt and the lamellae which, for example, can also be designed to run endlessly around and can be moved to the grinding belt almost without slip. The wear behavior of the abrasive belt, as well as the heat development can be further optimized. In addition, an undesirable effect due to the increased in the seam region of the endless abrasive belt abruptly increased material thickness of the abrasive belt and the associated increased resistance upon impact of this interface to the molding can be avoided by the sliding belt is used to compensate for such material thickness differences. Furthermore, the sliding belt can in turn be used as a wear material, so as to concentrate the wear occurring in the relatively inexpensive interchangeable sliding belt.

Eine andere, ebenfalls besonders Erfolg versprechende Weiterbildung der vorliegenden Erfindung wird dadurch erreicht, dass das Schleifband zur Einstellung verschiedener paralleler Spuren in unterschiedlichen Arbeitspositionen quer zur Vorschubbewegung des Schleifbandes festlegbar ist, so dass aufgrund des erfassten Abnutzungsgrades des Schleifbandes eine Parallelverschiebung quer zu der Schiene vorgenommen werden kann. Selbstverständlich können auch kontinuierlich wechselnde Spuren realisiert werden, wobei das Schleifband in Querrichtung oszillierend bewegt werden kann. Hierzu werden beispielsweise mehrere, das Schleifband führende Umlenkrollen quer zu der Schiene axial verfahren.Another, also particularly promising development of the present invention is achieved in that the grinding belt for setting different parallel tracks in different working positions can be fixed transversely to the feed movement of the grinding belt, so that due to the detected degree of wear of the grinding belt a parallel displacement are made transversely to the rail can. Of course, continuously changing tracks can be realized, wherein the grinding belt can be moved in an oscillating manner in the transverse direction. For this purpose, for example, several, the abrasive belt leading pulleys are moved axially transversely to the rail.

Das Schleifband ist vorzugsweise mittels einer Antriebsrolle und zumindest zwei Umlenkrollen in einer horizontalen Ebene geführt, von denen zumindest eine Umlenkrolle mehrere am Umfang angeordnete nutenförmige Ausnehmungen aufweist, die ähnlich einem bekannten Reifenprofil der Aufnahme von Flüssigkeit dient, die aufgrund der Bandspannung durch die Umlenkung aus dem Schleifband austreten kann. Mittels einer zustellbaren Rolle kann zudem in einfacher Weise die Bandspannung des Schleifbandes eingestellt werden.The abrasive belt is preferably guided by means of a drive roller and at least two pulleys in a horizontal plane, of which at least one guide roller has a plurality of circumferentially arranged groove-shaped recesses, which serves similar to a known tire profile of the intake of liquid due to the belt tension by the deflection of the Abrasive belt can escape. By means of an deliverable roll can also be easily adjusted, the belt tension of the sanding belt.

Die Vorrichtung könnte zur stationären Bearbeitung von Schienenabschnitten ausgeführt sein. Besonders vorteilhaft ist demgegenüber eine Abwandlung, bei der die Vorrichtung mit einem entlang einer Schiene beweglichen Fahrgestell ausgestattet ist und dadurch beispielsweise als ein Anhänger oder im selbstfahrenden Betrieb, einer vorgehenden Fräsbearbeitungsvörrichtung folgend eingesetzt werden kann. Die Bearbeitung der Schiene erfolgt dabei bevorzugt im Gegenlaufschleifen.The device could be designed for stationary processing of rail sections. In contrast, a modification is particularly advantageous in which the device is equipped with a mobile chassis movable along a rail and can thus be used, for example, as a trailer or in self-propelled operation, following a previous Fräsbearbeitungsvörrichtung. The processing of the rail is preferably carried out in the opposite direction.

Selbstverständlich können bei der Vorrichtung mehrere Schleifbänder zum zeitgleichen oder alternativen Einsatz vorgesehen sein, wobei zur zeitlichen Bearbeitung paralleler Schienen zumindest zwei mittels eines jeweiligen Formkörpers gegen das jeweilige Profil vorspannbare Schleifbänder bevorzugt realisiert werden. Wahlweise können weitere Funktionselemente der Vorrichtung mehrfach vorgesehen sein oder auch mehreren Schleifbändern zugleich zugeordnet sein. Beispielsweise kann ein gemeinsamer Antrieb vorgesehen sein.Of course, a plurality of abrasive belts for simultaneous or alternative use can be provided in the device, wherein for the temporal processing of parallel rails at least two by means of a respective shaped body against the respective profile prestressed abrasive belts are preferably realized. Optionally, further functional elements of the device can be provided multiple times or even assigned to several abrasive belts at the same time. For example, a common drive can be provided.

Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt in

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Vorrichtung;
Fig.2
einen Ausschnitt der in Figur 1 gezeigten Vorrichtung in einer vergrößerten Vorderansicht.
The invention allows for various embodiments. To further clarify its basic principle, one of them is shown in the drawing and will be described below. This shows in
Fig. 1
a side view of a device according to the invention;
Fig.2
a section of the device shown in Figure 1 in an enlarged front view.

Eine erfindungsgemäße Vorrichtung 1 zum Schleifen eines als Schiene ausgeführten Profils 2 wird anhand der Figuren 1 und 2 näher dargestellt, die eine Seitenansicht sowie eine vergrößerte Vorderansicht zeigen. Die Vorrichtung 1 weist ein in Richtung der Haupterstreckung des Profils 2 endlos umlaufendes Schleifband 3 auf, welches in einem horizontalen Bereich zwischen zwei Umlenkrollen 4, 5 mittels einer Vielzahl paralleler, sich in Längsrichtung des Profils 2 erstreckender Lamellen 6 an diese angepresst wird. Hierzu sind die Lamellen 6 vertikal beweglich angeordnet und mittels eines pneumatisch betätigbaren Druckkissens 7 mit einer Vorspannkraft 8 in Richtung des Profils 2 zustellbar. Um die Lamellen 6 bedarfsweise mit einer veränderlichen Vorspannkraft 8 beaufschlagen zu können und dadurch eine optimale Anpassung des Schleifbands 3 an das Profil zu erreichen, können einzelne, Lamellen 6 mit abweichender Vorspannkraft beaufschlagt werden. Zur Vermeidung einer thermischen Überlastung des Schleifbandes 3 einerseits und der Lamellen 6 andererseits weist die Vorrichtung 1 eine Kühleinrichtung 9 auf, durch die ein Kühlmittelstrom in den jeweiligen Spalt 10 zwischen den Lamellen 6 zuführbar ist. Die Lamellen 6 sind zusätzlich mit Ausnehmungen 11 ausgestattet, durch welche auch eine seitliche Wärmeabfuhr realisierbar ist. Um die gesamte Breite des Schleifbandes 3 nutzen zu können, sind verschiedene parallele Spuren quer zur Umlaufrichtung 12 des Schleifbandes 3 vorgesehen. Zu diesem Zweck sind die Umlenkrollen 4, 5 sowie eine nicht gezeigte Antriebsrolle in Pfeilrichtung 13 quer zu dem Profil 2 verfahrbar. Die Vorrichtung 1 wird mittels eines nicht gezeigten Fahrwerkes auf der Schiene 2 in Vorschubrichtung 14 bewegt, so dass sich eine Bearbeitung im Gegenlaufschleifen ergibt. Die Vorrichtung 1 hat weiterhin einen in Vorschubrichtung 14 hinter der Umlenkrolle 4 angeordnete Auffangeinrichtung 15 für Schleifpartikel sowie freigesetzte Schleifemissionen.A device 1 according to the invention for grinding a profile 2 embodied as a rail is illustrated in more detail with reference to FIGS. 1 and 2, which show a side view and an enlarged front view. The device 1 has an endlessly revolving in the direction of the main extension of the profile 2 sanding belt 3, which is pressed in a horizontal region between two pulleys 4, 5 by means of a plurality of parallel, extending in the longitudinal direction of the profile 2 fins 6 thereto. For this purpose, the slats 6 are arranged vertically movable and undeliverable by means of a pneumatically actuated pressure pad 7 with a biasing force 8 in the direction of the profile 2. In order to be able to act on the slats 6 with a variable biasing force 8 and thereby achieve an optimal adaptation of the grinding belt 3 to the profile, individual slats 6 can be acted upon with a different biasing force. To avoid a thermal overload of the abrasive belt 3 on the one hand and the fins 6 on the other hand, the device 1, a cooling device 9, through which a flow of coolant into the respective gap 10 between the slats 6 can be fed. The slats 6 are additionally equipped with recesses 11, through which a lateral heat dissipation can be realized. In order to use the entire width of the sanding belt 3, various parallel tracks are provided transversely to the direction of rotation 12 of the sanding belt 3. For this purpose, the deflection rollers 4, 5 and a drive roller, not shown, in the direction of arrow 13 transversely to the profile 2 movable. The device 1 is moved by means of a chassis, not shown, on the rail 2 in the feed direction 14, so that there is a machining in reverse grinding. The apparatus 1 further has a catching device 15 arranged in the feed direction 14 behind the guide roller 4 for abrasive particles and released grinding emissions.

Claims (17)

Vorrichtung (1) zum Schleifen eines Profils (2), insbesondere einer für schienengebundene Fahrzeuge bestimmten Schiene, mittels eines in Richtung der Haupterstreckung des Profils (2) endlos umlaufenden Schleifbands (3), welches mit einer einstellbaren Vorspannkraft (8) gegen das Profil (2) anpressbar ist, dadurch gekennzeichnet, dass das Schleifband (3) mittels einer Vielzahl in einem Formkörper relativ zueinander beweglichen, sich jeweils in Längsrichtung des Profils (2) erstreckenden Lamellen (6) gegen das Profil (2) anlegbar ist, wobei benachbarte Lamellen (6) einen Spalt (10) einschließen.Device (1) for grinding a profile (2), in particular a rail intended for rail vehicles, by means of a grinding belt (3) which revolves endlessly in the direction of the main extension of the profile (2) and which bears an adjustable prestressing force (8) against the profile (8). 2) can be pressed, characterized in that the abrasive belt (3) by means of a plurality in a molding relative to each other movable, each in the longitudinal direction of the profile (2) extending lamellae (6) against the profile (2) can be applied, wherein adjacent lamellae (6) include a gap (10). Vorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Lamellen (6) in parallelen Ebenen beweglich angeordnet sind.Device (1) according to claim 1, characterized in that the lamellae (6) are arranged movably in parallel planes. Vorrichtung (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Formkörper eine Führung aufweist, durch welche die Lamellen (6) in zueinander beabstandeten Ebenen beweglich angeordnet sind.Device (1) according to claim 1 or 2, characterized in that the shaped body has a guide through which the lamellae (6) are arranged to be movable in mutually spaced planes. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Formkörper einen in Längsrichtung des Profils (2) vor und/oder hinter den Lamellen (6) angeordneten Anschlag für die Lamellen (6) hat.Device (1) according to at least one of the preceding claims, characterized in that the shaped body in the longitudinal direction of the profile (2) in front of and / or behind the slats (6) arranged stop for the slats (6). Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung eine Kühleinrichtung (9) aufweist, durch die ein Kühlmittelstrom in den jeweiligen Spalt (10) zwischen den Lamellen (6) zuführbar istDevice (1) according to at least one of the preceding claims, characterized in that the device comprises a cooling device (9) through which a flow of coolant in the respective gap (10) between the slats (6) can be fed Vorrichtung (1) nach Anspruch 5, dadurch gekennzeichnet, dass als Kühlmittel ein Luft-Wassergemisch in den jeweiligen Spalt (10) zwischen den Lamellen (6) zuführbar ist.Device (1) according to claim 5, characterized in that as coolant an air-water mixture in the respective gap (10) between the slats (6) can be fed. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) eine Einrichtung zur lonisierung der Lamellen (6) aufweist.Device (1) according to at least one of the preceding claims, characterized in that the device (1) has a device for ionizing the lamellae (6). Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass einzelne oder mehrere Lamellen (6) gemeinsam mit der erforderlichen Vorspannkraft beaufschlagbar sind.Device (1) according to at least one of the preceding claims, characterized in that one or more lamellae (6) can be acted upon together with the required biasing force. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) einen fluidbeaufschlagbaren Druckkörper zur Erzeugung der Vorspannkraft aufweist, der zwischen den dem Profil abgewandten Stirnseiten der Lamellen (6) und einer Stützfläche des Formkörpers angeordnet ist.Device (1) according to at least one of the preceding claims, characterized in that the device (1) has a pressurizable pressurized fluid body for generating the biasing force, which is arranged between the profile facing away from the end faces of the lamellae (6) and a support surface of the shaped body. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Formkörper (6) in einer schnellen zeitlichen Folge mit einer veränderlichen Vorspannkraft (8) beaufschlagbar istDevice (1) according to at least one of the preceding claims, characterized in that the shaped body (6) in a rapid time sequence with a variable biasing force (8) can be acted upon Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Formkörper in einer Führung beweglich angeordnet ist und mittels eines Pneumatikzylinders in Richtung der Schiene (2) zustellbar ist.Device (1) according to at least one of the preceding claims, characterized in that the shaped body is movably arranged in a guide and by means of a pneumatic cylinder in the direction of the rail (2) can be fed. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Schleifband (3) und den Lamellen (6) ein Gleitelement insbesondere ein endlos umlaufendes Gleitband vorgesehen ist.Device (1) according to at least one of the preceding claims, characterized in that between the sanding belt (3) and the slats (6) is provided a sliding element, in particular an endlessly circulating sliding belt. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schleifband (3) zur Einstellung verschiedener paralleler Spuren in unterschiedlichen Arbeitspositionen quer (Pfeilrichtung 13) zur Vorschubbewegung (Vorschubrichtung 14) des Schleifbandes (3) festlegbar ist.Device (1) according to at least one of the preceding claims, characterized in that the grinding belt (3) for setting different parallel tracks in different working positions transversely (arrow 13) for advancing movement (feed direction 14) of the grinding belt (3) can be fixed. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schleifband (3) mittels einer Antriebsrolle und zumindest zwei Umlenkrollen (4, 5) in einer horizontalen Ebene geführt ist.Device (1) according to at least one of the preceding claims, characterized in that the grinding belt (3) by means of a drive roller and at least two deflection rollers (4, 5) is guided in a horizontal plane. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine Umlenkrolle (4, 5) mehrere im Umfang angeordnete nutenförmige Ausnehmungen aufweist.Device (1) according to at least one of the preceding claims, characterized in that the at least one deflection roller (4, 5) has a plurality of circumferentially arranged groove-shaped recesses. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mittels einer zustellbaren Rolle die Bandspannung des Schleifbandes (3) einstellbar ist.Device (1) according to at least one of the preceding claims, characterized in that by means of an deliverable roller, the belt tension of the abrasive belt (3) is adjustable. Vorrichtung (1) nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) mit einem entlang des Profils (2) beweglichen Fahrgestell ausgestattet ist.Device (1) according to at least one of the preceding claims, characterized in that the device (1) is equipped with a chassis movable along the profile (2).
EP06022880A 2006-11-03 2006-11-03 Apparatus for grinding profiles by means of a rotating grinding belt Not-in-force EP1918458B1 (en)

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AT06022880T ATE444399T1 (en) 2006-11-03 2006-11-03 DEVICE FOR GRINDING A PROFILE USING A CIRCULAR GRINDING BELT
DE502006004994T DE502006004994D1 (en) 2006-11-03 2006-11-03 Device for grinding a profile by means of a rotating abrasive belt
EP06022880A EP1918458B1 (en) 2006-11-03 2006-11-03 Apparatus for grinding profiles by means of a rotating grinding belt

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DE3020393A1 (en) 1980-05-29 1982-01-28 Friedr. August Picard KG, 5630 Remscheid Endless band grinder unit - has band supported on resilient endless belt running around support disc with spaced projections on disc surface
CH670667A5 (en) 1987-02-09 1989-06-30 Speno International Rail reshaping equipment for railway track - has chassis supported on wheels at one side and with endless grinding belt other side
US4768312A (en) * 1987-03-06 1988-09-06 Williams & White Machine Shop Ltd. Rail grinding machine
DE4119525A1 (en) 1989-12-08 1992-12-17 Marcel Louis Levy Grinding belt for rail levelling after build-up welding
EP0444242A1 (en) 1990-01-26 1991-09-04 Elaugen Gmbh Zürich, Schweiss- Und Schleiftechnik Rail grinding machine
US5997391A (en) 1996-12-20 1999-12-07 Speno International Sa Device for the continuous and fine reprofiling in situ of the surface of the head of at least one rail of a railway track
JP2003053655A (en) 2001-08-13 2003-02-26 Nagoya Railroad Co Ltd Cutting and correcting device for rail upper surface part of railway
DE202005012147U1 (en) 2005-08-03 2005-12-15 Möser Maschinenbau GmbH Rail head grinding machine, has rail arranged with parallel abrasive belt and contact roller or molding tool, where delivery and pressing of belt occurs through pivotal point and elevating screw longitudinal to rail direction

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177664A1 (en) 2008-10-20 2010-04-21 Mevert Maschinenbau GmbH & Co.KG Method and device for machine cutting a workpiece with a geometrically set blade
US9528225B2 (en) 2008-10-20 2016-12-27 Schweerbau Gmbh & Co. Kg Method and apparatus for machining a workpiece by way of a geometrically defined blade
CN101838956A (en) * 2010-05-18 2010-09-22 李洪彬 Internal combustion type rail belt grinder
CN101864708A (en) * 2010-06-24 2010-10-20 重庆运达机电设备制造有限公司 Grinding machine of internal combustion abrasive belt of small-sized steel rail
CN101864708B (en) * 2010-06-24 2011-12-28 重庆运达机电设备制造有限公司 Grinding machine of internal combustion abrasive belt of small-sized steel rail
CN104117888A (en) * 2014-08-06 2014-10-29 齐齐哈尔轨道交通装备有限责任公司 Tank container welding seam polishing device
CN111074702A (en) * 2019-12-31 2020-04-28 北京交通大学 Abrasive belt type steel rail grinding operation control system and grinding control method thereof
CN114102364A (en) * 2020-08-28 2022-03-01 洛阳拓博尔铁路设备有限公司 Vertical self-cooling steel rail grinding device
WO2022135814A2 (en) 2020-12-22 2022-06-30 Schweerbau International Gmbh & Co. Kg Device and method for grinding a profile
EP4282585A1 (en) * 2022-05-23 2023-11-29 Rail Maintenance Group AG Rail grinding device

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ATE444399T1 (en) 2009-10-15
DE502006004994D1 (en) 2009-11-12

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