EP0743395B1 - Device for grinding rails - Google Patents

Device for grinding rails Download PDF

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Publication number
EP0743395B1
EP0743395B1 EP96106162A EP96106162A EP0743395B1 EP 0743395 B1 EP0743395 B1 EP 0743395B1 EP 96106162 A EP96106162 A EP 96106162A EP 96106162 A EP96106162 A EP 96106162A EP 0743395 B1 EP0743395 B1 EP 0743395B1
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EP
European Patent Office
Prior art keywords
rail
guide
frame
grinding
rollers
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.)
Expired - Lifetime
Application number
EP96106162A
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German (de)
French (fr)
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EP0743395A1 (en
Inventor
Josef Hertelendi
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.)
ROBEL GMBH & CO. KG
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Georg Robel GmbH and Co
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Publication date
Application filed by Georg Robel GmbH and Co filed Critical Georg Robel GmbH and Co
Publication of EP0743395A1 publication Critical patent/EP0743395A1/en
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    • 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

Definitions

  • the invention relates to a device for grinding rails Track with a roller that can be rolled on a rail using traction rollers with rotary axes, a supporting frame which is adjustable relative to the rail, the pivot axis running in the longitudinal direction of the rail swiveling on an assembly frame with rollable on the rails Guide rollers is mounted, both tactile and guide rollers each have a rolling surface provided for rolling on the rail, and one designed to abut a vertical side surface of the rail
  • the guide element can be distanced from the supporting frame with the Unit frame is connected.
  • Such a device is known from DE 1 274 610 A.
  • This one from Hand-operated rail grinding machine has one by means of feeler rollers Support frame resting on the rail head, on which a grinding element together a drive motor mounted and relative to a spindle drive Rail is adjustable.
  • the support frame is at its two longitudinal ends pivotably connected to an assembly frame, which is guided by guide rollers is supported on the rail with horizontal axes of rotation.
  • This with Guide rollers equipped with flanges are each in a fork-shaped Roller carrier mounted, the relative in guide rails on the unit frame arranged to be displaceable in the direction of the axes of rotation of the rollers is.
  • the unit formed from the support frame and the unit frame is in the cross-track direction adjustable in different positions and in these by hand from clamping nuts to the - form-fitting engagement with the rail head remaining - guide rollers fixable.
  • the connection of the support and assembly frame takes place via two rockers, each one in the longitudinal direction of the rail aligned pivot on the support frame and over a Another pivot on the assembly frame, offset to the first are attached.
  • DE 2 908 244 A describes a grinding device with a rail described longitudinally extending frame, at both longitudinal ends each pivotable about an axis running parallel to the rail is connected to a support foot and thus on both sides of the grinding point on the rail to be machined is clamped.
  • a locking device allows the frame to be fixed in any selected pivot position.
  • On a longitudinal guide mounted on the frame is a grinding element Carriage slidably mounted in the longitudinal direction of the rail, whereby this longitudinal guide is equipped with buttons that during the transverse pivoting of the frame follow or copy the rail profile. Together with the required changes in distance of the longitudinal guide enable the grinding member with respect to the swivel axis the longitudinal guide runs perpendicular to the longitudinal direction of the rail Columns sliding on the frame and provided with return springs.
  • WO 91/08343 is also a device that can be clamped onto a rail known in which a grinding member adjustable perpendicular to the rail on a parallel to the rail, acting as a support Longitudinal guide is slidably mounted.
  • This carrier is on his two Ends in a substantially parallel to the ideal profile of the rail Cam track guided and additionally supported on the rail by means of rollers, that roll across the rail head and so the grinding wheel keep the same distance from the actual rail profile.
  • the grinding element is attached to a swivel bracket, rotatable about an axis running in the longitudinal direction of the rail is connected to a lift frame.
  • This in turn is adjustable in height mounted on a feed carriage that is perpendicular to the support frame Rail longitudinal direction is arranged horizontally.
  • the support frame finally is on a chassis frame that can be rolled off the rails assembled.
  • three are separate from each other movements that can be carried out using your own hydraulic or spindle drives required, namely transverse adjustment, height adjustment and pivoting of the grinding element.
  • a similar arrangement is also in the US 4,993,193.
  • the object of the present invention is now to create a Device of the type mentioned, which is a problem-free and accurate Copying the rail head profile in combination with maximum ease of use and security for workers.
  • This object is achieved with a generic device in that that - in the horizontal position of the axes of rotation of the feeler rollers parallel to the axes of rotation the guide rollers - one by contact of the rolling surface with the Rail defined roller contact point of the guide roller with respect to distanced a roller contact point of the sensing roller under higher positioning is arranged, and that a pivoting drive for pivoting of the unit frame is provided relative to the support frame.
  • a device 1 shown in FIGS. 1 and 2 for grinding rails 2 of a track has an elongated support frame 3, via two feeler rollers spaced apart in the longitudinal direction of the rail 4 supported with axes of rotation 5 on the rail 2 to be ground or on this can be unrolled.
  • the support frame 3 is around at its two longitudinal ends a running in the longitudinal direction of the rail, formed from a shaft 6 Swivel axis 7 rotatably connected to an assembly frame 8, the a bracket projecting upwards and bridging the support frame 3 9 is provided.
  • a drive motor is located on a bracket 10 attached to the assembly frame 8 11, which has a flexible drive shaft 12 with one on the Support frame 3 provided grinding unit 13 is connected. This is made up of a center between the feeler rollers 4 on the support frame 3 Grinding member 14 and an angular gear 15 together that the drive shaft 12 is connected.
  • the grinding member 14 is as around an axis of rotation 18 running perpendicular to the longitudinal direction of the rail rotating cup wheel 16 formed on the bevel gear 15 Hand of a V-belt 17 is applied.
  • the cup wheel 16 is in the direction its axis of rotation 18 perpendicular to the one to be machined Rail 2 can be advanced by means of an adjustment drive 20, this - preferably electrically operated - adjustment movement by an in the upper Area of the bracket 9 mounted button 19 is remotely controllable.
  • the assembly frame is 8 equipped with a guide roller 22 at its longitudinal ends.
  • These guide rollers 22 with horizontal or parallel to the track level Rotation axes 23 each have a distance from one another in the direction of the rotation axis 23 Wheel flanges 21, which have the function of - to bear on a vertical Side surface 39 of the rail 2 trained - have guide members 40.
  • These are adjustable with respect to the support frame 3 or to this designed to be removable.
  • the guide rollers 22 are along a transverse guide 24 extending in the direction of the axes of rotation 23 relative slidably mounted to the unit frame 8 on this.
  • the lateral guide 24 consists of a sliding sleeve 25, which with axle bearings 26 Guide roller 22 is connected and on a square in cross-sectional profile Slide carrier 27 is freely displaceable or floating. Of the Slide carrier 27 is accommodated in a housing 28 which is open on one side, on the underside there is a bearing block 29 for receiving the the support frame 3 connected shaft 6 is located.
  • a pressure element 41 in the interior of the slide support 27 in the form a spring 42 is connected to the sliding sleeve 25 and strives to Guide roller 22 centrally with respect to the transverse guide 24 or with respect to the To keep unit frame 8 centered (see Fig. 5).
  • Both the feeler rolls 4 and the guide rollers 22 have one for rolling on the rail 2 provided and designated with 43 or 44 rolling surface.
  • By the Contact of this rolling surface 43 of the sensing roller 4 with the rail 2 is one Role contact point 45 defined during a corresponding roll contact point the guide roller 22 bears the reference number 46.
  • Fig. 3 and can be seen in particular in FIG.
  • a swivel drive 30 is provided in the area of the one connection point of the two frames 3, 8 and arranged as a bevel gear 31 is trained.
  • This consists of a fixed to the support frame 3, along its circumference a bevel gear 33 having a bevel gear 33 and a drive wheel 34 connected to the assembly frame 8.
  • the bevel gear 33 shaped as a semicircle is perpendicular to Rail longitudinal direction vertical plane coaxial to the swivel axis 7 or arranged to shaft 6, while - one in comparison much smaller diameter - drive wheel 34 with its axis 35 at a right angle to the pivot axis 7 in a holder 36 of the assembly frame 8 is mounted.
  • a crank 37 fastened to the bracket 9 the drive wheel 34 can be set in rotation via a flexible shaft 38, whereby the pivoting of the support frame 3 is triggered or controlled becomes.
  • the device In work, the device is moved by hand on a rail 2 and moved back and forth at the grinding point.
  • the unit frame 8 or the bracket 9 always remains in the vertical position and is - in contrast to support frame 3 - not tilted.
  • This offers the advantage of being ergonomic correct, comfortably upright working method for the operator, of all the adjustment procedures based on the arranged on the bracket 9 Can perform controls.
  • the device 1 When grinding the horizontal tread 47 is a rail 2 the device 1 in the position shown in FIGS. 1 and 5.
  • the support frame 3 rests on the rail 2 via the feeler rollers 4, whose axes of rotation 5 are now are aligned horizontally.
  • the unit frame 8 rests on the transverse guide 24 also on the feeler rollers 4, while the guide rollers 22 due the higher positioning of their roll contact points 46 the rail 2 rest.
  • the flanges 21 of the guide rollers 22 are like this dimensioned so that it follows itself over the upper rail head edges Extend below and as a guide 40 prevent the device 1 can slide off the side of the rail 2.
  • the operator controls it Feed of the grinding member 14 or the cup wheel 16 by means of the adjustment drive 20 via the button 19, the weight of the device 1 generates the contact pressure required for grinding.
  • FIG. 7 In the variant of a device for rail grinding shown in FIG. 7 are functionally identical parts with the same reference numerals as in 1 to 6.
  • This device 49 differs from that already described in that the guide member 40 is not the one to be processed Rail 2 is assigned, rather than on the opposite Rail 2 rollable double track roller 50 is formed.
  • This is again connected to the assembly frame 8 via a transverse guide 24 and transverse to this adjustable.
  • the transverse guide 24 is telescopic extendable or shortenable bar 51 formed and with a pressure element 41 provided.
  • the guide rollers arranged on the unit frame 8 22 are not relatively adjustable to this and therefore have no wheel flanges to avoid the required transverse displacement of the device hinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

The profiling machine (1) is rolled along the rail (47) supported on flanged wheels (22) at each end. Swivel mountings (8) support a grinding frame (3) to position a grinding head onto the rail profile. Guide rollers (4) on the grinding head limit the amount of rail material taken off by the grinding head. The rollers tilt with the frame alignment about an axis parallel to the rail. The two flanges on each support wheel provide a vertical reference for grinding the two flanges of the rail with the appropriate flange brought into contact with the side of the rail by lateral movement of the wheel. The swivel action is controlled by a geared drive (33,34) on the swivel mounting. The differences in height setting, w.r.t. the rail, of the rollers and the flanged wheels control the amount of material removed by the grinding head.

Description

Die Erfindung betrifft eine Vorrichtung zum Schleifen von Schienen eines Gleises, mit einem über Tastrollen mit Drehachsen auf einer Schiene abrollbaren, ein relativ zur Schiene verstellbares Schleiforgan aufweisenden Tragrahmen, der um eine in Schienenlängsrichtung verlaufende Schwenkachse schwenkbar an einem Aggregatrahmen mit auf den Schienen abrollbaren Führungsrollen gelagert ist, wobei sowohl Tast- als auch Führungsrollen jeweils eine zum Abrollen auf der Schiene vorgesehene Abrollfläche aufweisen, und ein zur Anlage an eine vertikale Seitenfläche der Schiene ausgebildetes Führungsorgan in bezug auf den Tragrahmen distanzierbar mit dem Aggregatrahmen verbunden ist.The invention relates to a device for grinding rails Track with a roller that can be rolled on a rail using traction rollers with rotary axes, a supporting frame which is adjustable relative to the rail, the pivot axis running in the longitudinal direction of the rail swiveling on an assembly frame with rollable on the rails Guide rollers is mounted, both tactile and guide rollers each have a rolling surface provided for rolling on the rail, and one designed to abut a vertical side surface of the rail The guide element can be distanced from the supporting frame with the Unit frame is connected.

Eine derartige Vorrichtung ist aus der DE 1 274 610 A bekannt. Diese von Hand verfahrbare Schienenschleifmaschine weist einen mittels Tastrollen am Schienenkopf aufliegenden Tragrahmen auf, an dem ein Schleiforgan samt einem Antriebsmotor gelagert und an Hand eines Spindelantriebes relativ zur Schiene verstellbar ist. Der Tragrahmen ist an seinen beiden Längsenden verschwenkbar mit einem Aggregatrahmen verbunden, der über Führungsrollen mit horizontalen Drehachsen auf der Schiene abgestützt ist. Diese mit Spurkränzen ausgestatteten Führungsrollen sind jeweils in einem gabelförmigen Rollenträger gelagert, der in Führungsleisten am Aggregatrahmen relativ zu diesem in Richtung der Drehachsen der Rollen verschiebbar angeordnet ist. Die aus Tragrahmen und Aggregatrahmen gebildete Einheit ist in Gleisquerrichtung in verschiedene Positionen verstellbar und in diesen an Hand von Spannmuttern an den - formschlüssig mit dem Schienenkopf in Eingriff verbleibenden - Führungsrollen fixierbar. Die Verbindung von Trag- und Aggregatrahmen erfolgt über zwei Schwingen, die jeweils über einen in Schienenlängsrichtung ausgerichteten Drehzapfen am Tragrahmen und über einen weiteren, zum ersten versetzt angeordneten Drehzapfen am Aggregatrahmen befestigt sind.Such a device is known from DE 1 274 610 A. This one from Hand-operated rail grinding machine has one by means of feeler rollers Support frame resting on the rail head, on which a grinding element together a drive motor mounted and relative to a spindle drive Rail is adjustable. The support frame is at its two longitudinal ends pivotably connected to an assembly frame, which is guided by guide rollers is supported on the rail with horizontal axes of rotation. This with Guide rollers equipped with flanges are each in a fork-shaped Roller carrier mounted, the relative in guide rails on the unit frame arranged to be displaceable in the direction of the axes of rotation of the rollers is. The unit formed from the support frame and the unit frame is in the cross-track direction adjustable in different positions and in these by hand from clamping nuts to the - form-fitting engagement with the rail head remaining - guide rollers fixable. The connection of the support and assembly frame takes place via two rockers, each one in the longitudinal direction of the rail aligned pivot on the support frame and over a Another pivot on the assembly frame, offset to the first are attached.

In der DE 2 908 244 A ist eine Schleifvorrichtung mit einem sich in Schienen längsrichtung erstreckenden Rahmen beschrieben, der an beiden Längsenden um eine parallel zur Schiene verlaufende Achse verschwenkbar mit je einem Stützfuß verbunden ist und damit beidseits der Schleifstelle auf der zu bearbeitenden Schiene festgeklemmt wird. Eine Verriegelungseinrichtung gestattet das Fixieren des Rahmens in jeder gewählten Verschwenkposition. Auf einer am Rahmen montierten Längsführung ist ein das Schleiforgan aufweisender Schlitten in Schienenlängsrichtung verschiebbar gelagert, wobei diese Längsführung mit Tastern ausgestattet ist, die während der Querverschwenkung des Rahmens dem Schienenprofil folgen bzw. dieses kopieren. Um die hierbei erforderlichen Abstandsänderungen der Längsführung mitsamt dem Schleiforgan in bezug auf die Schwenkachse zu ermöglichen, ist die Längsführung über senkrecht zur Schienenlängsrichtung verlaufende Säulen gleitend auf dem Rahmen gelagert und mit Rückstellfedern versehen.DE 2 908 244 A describes a grinding device with a rail described longitudinally extending frame, at both longitudinal ends each pivotable about an axis running parallel to the rail is connected to a support foot and thus on both sides of the grinding point on the rail to be machined is clamped. A locking device allows the frame to be fixed in any selected pivot position. On a longitudinal guide mounted on the frame is a grinding element Carriage slidably mounted in the longitudinal direction of the rail, whereby this longitudinal guide is equipped with buttons that during the transverse pivoting of the frame follow or copy the rail profile. Together with the required changes in distance of the longitudinal guide enable the grinding member with respect to the swivel axis the longitudinal guide runs perpendicular to the longitudinal direction of the rail Columns sliding on the frame and provided with return springs.

Gemäß WO 91/08343 ist ebenfalls eine an einer Schiene anklemmbare Vorrichtung bekannt, bei der ein senkrecht zur Schiene verstellbares Schleiforgan auf einer parallel zur Schiene verlaufenden, als Träger fungierenden Längsführung verschiebbar gelagert ist. Dieser Träger ist an seinen beiden Enden in einer zum ldealprofil der Schiene im wesentlichen parallel verlaufenden Kurvenbahn geführt und zusätzlich mittels Rollen auf der Schiene abgestützt, die quer über den Schienenkopf abrollen und so die Schleifscheibe im gleichen Abstand vom tatsächlichen Schienenprofil halten.According to WO 91/08343 is also a device that can be clamped onto a rail known in which a grinding member adjustable perpendicular to the rail on a parallel to the rail, acting as a support Longitudinal guide is slidably mounted. This carrier is on his two Ends in a substantially parallel to the ideal profile of the rail Cam track guided and additionally supported on the rail by means of rollers, that roll across the rail head and so the grinding wheel keep the same distance from the actual rail profile.

Bei einer weiteren, durch die DE 43 16 252 A1 bekannten gleisverfahrbaren Schienenschleifmaschine ist das Schleiforgan auf einer Schwenkkonsole befestigt, die um eine in Schienenlängsrichtung verlaufende Achse rotierbar mit einem Liftrahmen verbunden ist. Dieser ist seinerseits höhenverstellbar auf einem Zustellschlitten gelagert, der auf einem Tragrahmen senkrecht zur Schienenlängsrichtung horizontal verschiebbar angeordnet ist. Der Tragrahmen schließlich ist auf einem auf den Schienen abrollbaren Fahrgestellrahmen montiert. Um das Schleiforgan auf einen bestimmten Punkt des zu schleifenden Schienenprofiles einzustellen, sind drei separat voneinander an Hand von eigenen Hydraulik- oder Spindelantrieben durchführbare Bewegungen erforderlich, nämlich Querverstellung, Höhenverstellung und Verschwenkung des Schleiforganes. Eine ähnliche Anordnung ist auch in der US 4 993 193 geoffenbart. In another, known from DE 43 16 252 A1 track movable Rail grinding machine, the grinding element is attached to a swivel bracket, rotatable about an axis running in the longitudinal direction of the rail is connected to a lift frame. This in turn is adjustable in height mounted on a feed carriage that is perpendicular to the support frame Rail longitudinal direction is arranged horizontally. The support frame finally is on a chassis frame that can be rolled off the rails assembled. To get the grinding element to a certain point of the to adjust the sliding rail profile, three are separate from each other movements that can be carried out using your own hydraulic or spindle drives required, namely transverse adjustment, height adjustment and pivoting of the grinding element. A similar arrangement is also in the US 4,993,193.

Die Aufgabe der vorliegenden Erfindung besteht nun in der Schaffung einer Vorrichtung der eingangs genannten Art, die ein problemloses und genaues Kopieren des Schienenkopfprofiles in Kombination mit höchstem Bedienungskomfort und Sicherheit für das Arbeitspersonal ermöglicht.The object of the present invention is now to create a Device of the type mentioned, which is a problem-free and accurate Copying the rail head profile in combination with maximum ease of use and security for workers.

Diese Aufgabe wird mit einer gattungsgemäßen Vorrichtung dadurch gelöst, daß - bei Horizontalstellung der Drehachsen der Tastrollen parallel zu Drehachsen der Führungsrollen - ein durch Kontakt der Abrollfläche mit der Schiene definierter Rollenaufstandspunkt der Führungsrolle in bezug auf einen Rollenaufstandspunkt der Tastrolle unter höherer Positionierung distanziert angeordnet ist, und daß ein Verschwenkantrieb zum Verschwenken des Aggregatrahmens relativ zum Tragrahmen vorgesehen ist.This object is achieved with a generic device in that that - in the horizontal position of the axes of rotation of the feeler rollers parallel to the axes of rotation the guide rollers - one by contact of the rolling surface with the Rail defined roller contact point of the guide roller with respect to distanced a roller contact point of the sensing roller under higher positioning is arranged, and that a pivoting drive for pivoting of the unit frame is provided relative to the support frame.

Diese spezielle Anordnung der Tast- und Führungsrollen zueinander ermöglicht es, sowohl die horizontale Lauffläche als auch beide vertikale Seitenflächen eines Schienenkopfes problemlos und mit hoher Präzision zu bearbeiten, wobei in Verbindung mit dem Verschwenkantrieb auch ein Höchstmaß an Ergonomie gewährleistet ist. Beim Schleifen der Lauffläche und der oberen Schienenkopfkanten werden die als Kopierrollen fungierenden Tastrollen in ihrer Verschwenkbewegung um die Schwenkachse in keiner Weise beeinträchtigt oder behindert, da die Führungsrollen hierbei keinen Kontakt mit der Schiene haben und sich die gesamte Vorrichtung lediglich über die besagten Tastrollen auf der Schiene abstützt. Dadurch kann das Schienenprofil zu beiden Seiten der Schleifstelle genauestens verfolgt und an der Schleifstelle selbst durch das Schleiforgan kopiert werden, um beispielsweise einen geschweißten Schienenstoß plan zu schleifen. Wird der Tragrahmen zum Schleifen der Schienenkopfseitenflächen ganz zur Seite verschwenkt, so ermöglicht die - in bezug auf den Rollenaufstandspunkt der Tastrolle - höhere Positionierung der Rollenaufstandspunkte der Führungsrollen ein selbsttätiges bzw. automatisches Absenken der Vorrichtung, bis die Führungsrollen auf der Schiene aufliegen. Diese Absenkung bietet den Vorteil, daß das Schleiforgan besser auf der zu schleifenden Seitenfläche der Schiene plazierbar ist und der Schleifbereich weiter nach unten ausgedehnt werden kann. Gleichzeitig verhindert das Führungsorgan ein Abrutschen der Vorrichtung von der Schiene ungeachtet der Verschwenkstellung des Schleiforganes. Die Bedienungsperson kann sich also - weitgehend unbelastet von Vorsichtsmaßnahmen - auf das Balanzieren der Vorrichtung auf der Schiene und auf die Bedienung des Verschwenkantriebes konzentrieren, wodurch alle weiteren Bewegungen des Trag- und Aggregatrahmens relativ zueinander automatisch ausgelöst werden.This special arrangement of the feeler and guide rollers enables each other it, both the horizontal tread and both vertical side surfaces to process a rail head easily and with high precision, in connection with the swivel drive also a maximum ergonomics is guaranteed. When sanding the tread and the top Rail head edges become the tracer rollers that act as copy rollers in no way impaired in its pivoting movement about the pivot axis or hampers because the guide rollers do not come into contact with have the rail and the entire device only on said Tracer rollers supported on the rail. This allows the rail profile closely monitored on both sides of the grinding point and at the grinding point even be copied by the grinding member, for example to grind a welded rail joint flat. Will the support frame swiveled completely to the side to grind the rail head side surfaces, this enables - in relation to the roller contact point of the tracer roller - higher positioning of the roller contact points of the guide rollers automatic or automatic lowering of the device until the guide rollers lie on the rail. This lowering has the advantage that the grinding member better on the side surface of the rail to be ground can be placed and the grinding area can be extended further down can. At the same time, the guide element prevents the Device from the rail regardless of the pivoting position of the grinding element. The operator can - largely unencumbered by Precautions - on balancing the device on the rail and concentrate on the operation of the swivel drive, whereby all other movements of the support and assembly frame relative to each other are triggered automatically.

Weitere Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung.Further advantages of the invention emerge from the subclaims and the description.

Die Erfindung wird im folgenden an Hand eines in den Zeichnungen dargestellten Ausführungsbeispieles im Detail erläutert.The invention is illustrated below with reference to one in the drawings Embodiment explained in detail.

Es zeigen:

  • Fig. 1 eine Seitenansicht einer erfindungsgemäß ausgebildeten Vorrichtung zum Schleifen von Schienen,
  • Fig. 2 eine Draufsicht auf die Vorrichtung gemäß Fig. 1 in einer zum Schleifen einer Schienenkopfflanke seitlich verschwenkten Position des Schleiforganes,
  • Fig. 3 eine Detailseitenansicht und Fig. 4 eine vergrößerte, vereinfacht dargestellte Schrägansicht des den Verschwenkantrieb aufweisenden Bereiches der Vorrichtung,
  • Fig. 5 eine Stirnansicht gemäß Pfeil V in Fig. 1,
  • Fig. 6 eine weitere Stirnansicht gemäß Pfeil VI in Fig. 2, und
  • Fig. 7 stark schematisiert ein weiteres Ausführungsbeispiel der Erfindung.
    • Show it:
  • 1 is a side view of an inventive device for grinding rails,
  • 2 shows a plan view of the device according to FIG. 1 in a position of the grinding member pivoted laterally for grinding a rail head flank,
  • 3 shows a detailed side view and FIG. 4 shows an enlarged, simplified oblique view of the area of the device which has the pivoting drive,
  • 5 is an end view according to arrow V in Fig. 1,
  • Fig. 6 is another end view according to arrow VI in Fig. 2, and
  • Fig. 7 highly schematic another embodiment of the invention.

    • Eine in Fig. 1 und 2 ersichtliche Vorrichtung 1 zum Schleifen von Schienen 2 eines Gleises weist einen langgestreckt ausgebildeten Tragrahmen 3 auf, der über zwei in Schienenlängsrichtung voneinander distanzierte Tastrollen 4 mit Drehachsen 5 auf der zu schleifenden Schiene 2 abgestützt bzw. auf dieser abrollbar ist. Der Tragrahmen 3 ist an seinen beiden Längsenden um eine in Schienenlängsrichtung verlaufende, aus einer Welle 6 gebildete Schwenkachse 7 rotierbar mit einem Aggregatrahmen 8 verbunden, der mit einem nach oben abragenden und den Tragrahmen 3 überbrückenden Bügel 9 versehen ist.A device 1 shown in FIGS. 1 and 2 for grinding rails 2 of a track has an elongated support frame 3, via two feeler rollers spaced apart in the longitudinal direction of the rail 4 supported with axes of rotation 5 on the rail 2 to be ground or on this can be unrolled. The support frame 3 is around at its two longitudinal ends a running in the longitudinal direction of the rail, formed from a shaft 6 Swivel axis 7 rotatably connected to an assembly frame 8, the a bracket projecting upwards and bridging the support frame 3 9 is provided.

    Auf einer am Aggregatrahmen 8 befestigten Konsole 10 befindet sich ein Antriebsmotor 11, der über eine flexible Antriebswelle 12 mit einem auf dem Tragrahmen 3 vorgesehenen Schleifaggregat 13 in Verbindung steht. Dieses setzt sich aus einem mittig zwischen den Tastrollen 4 am Tragrahmen 3 angeordneten Schleiforgan 14 und einem Winkelgetriebe 15 zusammen, an das die Antriebswelle 12 angeschlossen ist. Das Schleiforgan 14 ist als um eine senkrecht zur Schienenlängsrichtung verlaufende Rotationsachse 18 rotierende Topfscheibe 16 ausgebildet, die über das Winkelgetriebe 15 an Hand eines Keilriemens 17 beaufschlagt wird. Die Topfscheibe 16 ist in Richtung ihrer Rotationsachse 18 senkrecht in bezug auf die zu bearbeitende Schiene 2 mittels eines Verstellantriebes 20 vorschiebbar, wobei diese - vorzugsweise elektrisch betriebene - Verstellbewegung durch eine im oberen Bereich des Bügels 9 montierte Taste 19 fernsteuerbar ist.A drive motor is located on a bracket 10 attached to the assembly frame 8 11, which has a flexible drive shaft 12 with one on the Support frame 3 provided grinding unit 13 is connected. This is made up of a center between the feeler rollers 4 on the support frame 3 Grinding member 14 and an angular gear 15 together that the drive shaft 12 is connected. The grinding member 14 is as around an axis of rotation 18 running perpendicular to the longitudinal direction of the rail rotating cup wheel 16 formed on the bevel gear 15 Hand of a V-belt 17 is applied. The cup wheel 16 is in the direction its axis of rotation 18 perpendicular to the one to be machined Rail 2 can be advanced by means of an adjustment drive 20, this - preferably electrically operated - adjustment movement by an in the upper Area of the bracket 9 mounted button 19 is remotely controllable.

    Wie im weiteren in Fig. 3 und 4 noch deutlicher erkennbar, ist der Aggregatrahmen 8 an seinen Längsenden mit je einer Führungsrolle 22 ausgestattet. Diese Führungsrollen 22 mit horizontalen bzw. zur Gleisebene parallelen Drehachsen 23 weisen jeweils in Richtung der Drehachse 23 voneinander distanzierte Spurkränze 21 auf, die die Funktion von - zur Anlage an eine vertikale Seitenfläche 39 der Schiene 2 ausgebildeten - Führungsorganen 40 haben. Diese sind in bezug auf den Tragrahmen 3 verstellbar bzw. zu diesem distanzierbar ausgebildet. Zu diesem Zweck sind die Führungsrollen 22 entlang einer in Richtung der Drehachsen 23 verlaufenden Querführung 24 relativ zum Aggregatrahmen 8 verschiebbar an diesem gelagert. Die Querführung 24 besteht aus einer Gleitmanschette 25, die mit Achslagern 26 der Führungsrolle 22 verbunden ist und auf einem im Querschnittsprofil vierkantförmigen Gleitträger 27 frei verschiebbar bzw. schwimmend gelagert ist. Der Gleitträger 27 ist in einem auf einer Seite offenen Gehäuse 28 untergebracht, an dessen Unterseite sich ein Lagerblock 29 zur Aufnahme der mit dem Tragrahmen 3 verbundenen Welle 6 befindet.As can be seen more clearly in FIGS. 3 and 4, the assembly frame is 8 equipped with a guide roller 22 at its longitudinal ends. These guide rollers 22 with horizontal or parallel to the track level Rotation axes 23 each have a distance from one another in the direction of the rotation axis 23 Wheel flanges 21, which have the function of - to bear on a vertical Side surface 39 of the rail 2 trained - have guide members 40. These are adjustable with respect to the support frame 3 or to this designed to be removable. For this purpose, the guide rollers 22 are along a transverse guide 24 extending in the direction of the axes of rotation 23 relative slidably mounted to the unit frame 8 on this. The lateral guide 24 consists of a sliding sleeve 25, which with axle bearings 26 Guide roller 22 is connected and on a square in cross-sectional profile Slide carrier 27 is freely displaceable or floating. Of the Slide carrier 27 is accommodated in a housing 28 which is open on one side, on the underside there is a bearing block 29 for receiving the the support frame 3 connected shaft 6 is located.

    Ein im Inneren des Gleitträgers 27 befindliches Druckelement 41 in Form einer Feder 42 ist mit der Gleitmanschette 25 verbunden und bestrebt, die Führungsrolle 22 mittig in bezug auf die Querführung 24 bzw. bezüglich des Aggregatrahmens 8 zentriert zu halten (siehe Fig. 5). Sowohl die Tastrollen 4 als auch die Führungrollen 22 weisen eine zum Abrollen auf der Schiene 2 vorgesehene und mit 43 bzw. 44 bezeichnete Abrollfläche auf. Durch den Kontakt dieser Abrollfläche 43 der Tastrolle 4 mit der Schiene 2 wird ein Rollenaufstandspunkt 45 definiert, während ein entsprechender Rollenaufstandspunkt der Führungsrolle 22 das Bezugszeichen 46 trägt. Wie in Fig. 3 und insbesondere in Fig. 5 zu sehen, ist - bei einer horizontalen Ausrichtung der Drehachsen 5 der Tastrollen 4 parallel zu den Drehachsen 23 der Führungsrollen 22 - der Rollenaufstandspunkt 46 der Führungsrolle 22 in bezug auf den Rollenaufstandspunkt 45 der Tastrolle 4 höher positioniert bzw. vertikal von diesem distanziert angeordnet.A pressure element 41 in the interior of the slide support 27 in the form a spring 42 is connected to the sliding sleeve 25 and strives to Guide roller 22 centrally with respect to the transverse guide 24 or with respect to the To keep unit frame 8 centered (see Fig. 5). Both the feeler rolls 4 and the guide rollers 22 have one for rolling on the rail 2 provided and designated with 43 or 44 rolling surface. By the Contact of this rolling surface 43 of the sensing roller 4 with the rail 2 is one Role contact point 45 defined during a corresponding roll contact point the guide roller 22 bears the reference number 46. As in Fig. 3 and can be seen in particular in FIG. 5, with a horizontal orientation the axes of rotation 5 of the feeler rollers 4 parallel to the axes of rotation 23 of the guide rollers 22 - the roller contact point 46 of the guide roller 22 in relation positioned higher on the roller contact point 45 of the sensing roller 4 or vertically spaced from this.

    Zur Verschwenkung des Tragrahmens 3 relativ zum Aggregatrahmen 8 ist ein Verschwenkantrieb 30 vorgesehen, der im Bereich der einen Verbindungsstelle der beiden Rahmen 3,8 angeordnet und als Kegelradgetriebe 31 ausgebildet ist. Dieses setzt sich aus einem am Tragrahmen 3 befestigten, entlang seines Umfanges einen Zahnkranz 32 aufweisenden Kegelrad 33 sowie einem mit dem Aggregatrahmen 8 verbundenen Antriebsrad 34 zusammen. Das als Halbkreis geformte Kegelrad 33 ist in einer senkrecht zur Schienenlängsrichtung verlaufenden Vertikalebene koaxial zur Schwenkachse 7 bzw. zur Welle 6 angeordnet, während das - einen im Vergleich dazu viel kleineren Durchmesser aufweisende - Antriebsrad 34 mit seiner Achse 35 im rechten Winkel zur Schwenkachse 7 in einer Halterung 36 des Aggregatrahmens 8 montiert ist. An Hand einer am Bügel 9 befestigten Kurbel 37 ist das Antriebsrad 34 über einen biegsamen Schaft 38 in Drehung versetzbar, wodurch die Verschwenkung des Tragrahmens 3 ausgelöst bzw. gesteuert wird. For pivoting the support frame 3 relative to the unit frame 8 a swivel drive 30 is provided in the area of the one connection point of the two frames 3, 8 and arranged as a bevel gear 31 is trained. This consists of a fixed to the support frame 3, along its circumference a bevel gear 33 having a bevel gear 33 and a drive wheel 34 connected to the assembly frame 8. The bevel gear 33 shaped as a semicircle is perpendicular to Rail longitudinal direction vertical plane coaxial to the swivel axis 7 or arranged to shaft 6, while - one in comparison much smaller diameter - drive wheel 34 with its axis 35 at a right angle to the pivot axis 7 in a holder 36 of the assembly frame 8 is mounted. Using a crank 37 fastened to the bracket 9 the drive wheel 34 can be set in rotation via a flexible shaft 38, whereby the pivoting of the support frame 3 is triggered or controlled becomes.

    Im Arbeitseinsatz wird die Vorrichtung auf einer Schiene 2 von Hand verfahren und an der Schleifstelle hin- und herbewegt. Der Aggregatrahmen 8 bzw. der Bügel 9 bleibt dabei immer in lotrechter Stellung und wird - im Gegensatz zum Tragrahmen 3 - nicht gekippt. Dies bietet den Vorteil einer ergonomisch richtigen, bequem aufrecht stehenden Arbeitsweise für den Bediener, der alle Einstellvorgänge an Hand der oben am Bügel 9 angeordneten Bedienungselemente durchführen kann. Zudem kann der Antriebsmotor 11, da er nicht gekippt wird, auch als Viertaktmotor mit besseren Emissionswerten und geringerer Lärmentwicklung ausgeführt sein.In work, the device is moved by hand on a rail 2 and moved back and forth at the grinding point. The unit frame 8 or the bracket 9 always remains in the vertical position and is - in contrast to support frame 3 - not tilted. This offers the advantage of being ergonomic correct, comfortably upright working method for the operator, of all the adjustment procedures based on the arranged on the bracket 9 Can perform controls. In addition, the drive motor 11, since it is not tilted, also as a four-stroke engine with better emission values and less noise.

    Beim Schleifen der horizontalen Lauffläche 47 einer Schiene 2 befindet sich die Vorrichtung 1 in der in Fig. 1 und 5 gezeigten Stellung. Der Tragrahmen 3 liegt auf der Schiene 2 über die Tastrollen 4 auf, deren Drehachsen 5 nun horizontal ausgerichtet sind. Der Aggregatrahmen 8 ruht über die Querführung 24 ebenfalls auf den Tastrollen 4, während die Führungsrollen 22 aufgrund der höheren Positionierung ihrer Rollenaufstandspunkte 46 nicht auf der Schiene 2 aufliegen. Die Spurkränze 21 der Führungsrollen 22 sind so dimensioniert, daß sie sich dabei über die oberen Schienenkopfkanten nach unten erstrecken und als Führungsorgane 40 verhindern, daß die Vorrichtung 1 seitlich von der Schiene 2 abrutschen kann. Der Bediener regelt den Vorschub des Schleiforganes 14 bzw. der Topfscheibe 16 mittels des Verstellantriebes 20 über die Taste 19, wobei das Eigengewicht der Vorrichtung 1 den für das Schleifen nötigen Anpreßdruck erzeugt.When grinding the horizontal tread 47 is a rail 2 the device 1 in the position shown in FIGS. 1 and 5. The support frame 3 rests on the rail 2 via the feeler rollers 4, whose axes of rotation 5 are now are aligned horizontally. The unit frame 8 rests on the transverse guide 24 also on the feeler rollers 4, while the guide rollers 22 due the higher positioning of their roll contact points 46 the rail 2 rest. The flanges 21 of the guide rollers 22 are like this dimensioned so that it follows itself over the upper rail head edges Extend below and as a guide 40 prevent the device 1 can slide off the side of the rail 2. The operator controls it Feed of the grinding member 14 or the cup wheel 16 by means of the adjustment drive 20 via the button 19, the weight of the device 1 generates the contact pressure required for grinding.

    Soll nun eine Schienenkopfkante oder - wie in Fig. 2 und 6 zu sehen - eine der vertikalen Seitenflächen 39 eines Schienenkopfes 52 bearbeitet werden, so ist dazu lediglich eine Verschwenkung des Tragrahmens 3 an Hand des über die Kurbel 37 bedienbaren Verschwenkantriebes 30 erforderlich. Die Rotation der Welle 6 um die Schwenkachse 7 führt zu einem Kippen der Tastrollen 4, die in ihrer Funktion als Kopierrollen dem Querschnittsprofil des Schienenkopfes 52 folgen. Dadurch wird automatisch auch eine Verschiebung des Tragrahmens 3 und des mit diesem über die Welle 6 gekoppelten Aggregatrahmens 8 quer zur Schienenlängsrichtung ausgelöst. Die Führungsrollen 22 bleiben dabei auf Grund der Spurkränze 21 in ihrer bezüglich der Schiene 2 zentrierten Stellung mit horizontaler Ausrichtung der Drehachsen 23. Die daraus resultierende Querverstellung der Gleitmanschette 25 relativ zum Gleitträger 27 der Querführung 24 bewirkt eine Kompression des Druckelementes 41 auf der der Schleifstelle gegenüberliegenden Seite und dadurch in weiterer Folge die Erzeugung eines Anpreßdruckes des Schleiforganes 14 auf die Seitenfläche 39 des Schienenkopfes 52. Dieser Anpreßdruck nimmt proportional zur Verschwenkung des Tragrahmens 3 zu und ersetzt dadurch den zwangsweise abnehmenden, durch das Eigengewicht der Vorrichtung erzeugten Anpreßdruck automatisch.Should now be a rail head edge or - as can be seen in Fig. 2 and 6 - one the vertical side surfaces 39 of a rail head 52 are machined, so this is only a pivoting of the support frame 3 using the via the crank 37 operable pivot drive 30 required. The Rotation of the shaft 6 about the pivot axis 7 leads to a tilting of the Tracer rollers 4, the cross-sectional profile in their function as copy rollers Follow the rail head 52. This will automatically result in a shift of the support frame 3 and coupled to it via the shaft 6 Unit frame 8 triggered transversely to the longitudinal direction of the rail. The Guide rollers 22 remain due to the flanges 21 in terms of the rail 2 centered position with horizontal alignment of the axes of rotation 23. The resulting transverse adjustment of the sliding sleeve 25 relative to the slide carrier 27 of the transverse guide 24 causes compression of the pressure element 41 on the side opposite the grinding point and consequently the generation of a contact pressure of the Grinding member 14 on the side surface 39 of the rail head 52. This Contact pressure increases proportionally to the pivoting of the support frame 3 and thereby replaces the inevitably decreasing one with its own weight the contact pressure generated automatically.

    Bei Erreichen der größtmöglichen Verschwenkung und dadurch bedingten Querverstellung des Tragrahmens 3 nehmen die Drehachsen 5 der Tastrollen 4 eine etwa vertikale Position ein (Fig. 6). Dies ermöglicht ein Absenken der gesamten Vorrichtung 1 in vertikaler Richtung um jene Distanz, um die der Rollenaufstandspunkt 46 der Abrollfläche 44 der Führungsrolle 22 in der Ausgangsposition von der Lauffläche 47 der Schiene 2 distanziert war. Die strichpunktierte Linie 48 in Fig. 6 zeigt die bogenförmige Bahn, die die Schwenkachse 7 zwischen den beiden möglichen Extremstellungen beschreibt. Da beide Seitenflächen 39 des Schienenkopfes 52 gleichermaßen vom Schleiforgan 14 erreichbar sind, erübrigt sich ein Umdrehen der Vorrichtung 1 auf der Schiene 2.When the greatest possible swiveling is reached and as a result Transverse adjustment of the support frame 3 take the axes of rotation 5 of the feeler rollers 4 an approximately vertical position (Fig. 6). This enables lowering the entire device 1 in the vertical direction by that distance by the roller contact point 46 of the rolling surface 44 of the guide roller 22 in the Starting position was distanced from the running surface 47 of the rail 2. The Dashed line 48 in Fig. 6 shows the arcuate path that the Describes pivot axis 7 between the two possible extreme positions. Since both side surfaces 39 of the rail head 52 are alike are accessible from the grinding member 14, there is no need to turn the device 1 on the rail 2.

    Bei der in Fig. 7 dargestellten Variante einer Vorrichtung zum Schienenschleifen sind funktionsgleiche Teile mit denselben Bezugszeichen wie in den Fig. 1 bis 6 versehen. Diese Vorrichtung 49 unterscheidet sich von der bereits beschriebenen dadurch, daß das Führungsorgan 40 nicht der zu bearbeitenden Schiene 2 zugeordnet ist, sondern als auf der gegenüberliegenden Schiene 2 abrollbare Doppelspurkranzrolle 50 ausgebildet ist. Diese ist wieder über eine Querführung 24 mit dem Aggregatrahmen 8 verbunden und relativ zu diesem querverstellbar. Die Querführung 24 ist als teleskopisch verlänger- bzw. verkürzbarer Balken 51 ausgebildet und mit einem Druckelement 41 versehen. Die am Aggregatrahmen 8 angeordneten Führungsrollen 22 sind zu diesem nicht relativ verstellbar und weisen daher keine Spurkränze auf, um die erforderliche Querverschiebung der Vorrichtung nicht zu behindern.In the variant of a device for rail grinding shown in FIG. 7 are functionally identical parts with the same reference numerals as in 1 to 6. This device 49 differs from that already described in that the guide member 40 is not the one to be processed Rail 2 is assigned, rather than on the opposite Rail 2 rollable double track roller 50 is formed. This is again connected to the assembly frame 8 via a transverse guide 24 and transverse to this adjustable. The transverse guide 24 is telescopic extendable or shortenable bar 51 formed and with a pressure element 41 provided. The guide rollers arranged on the unit frame 8 22 are not relatively adjustable to this and therefore have no wheel flanges to avoid the required transverse displacement of the device hinder.

    Claims (12)

    1. An apparatus for grinding rails of a track, including a carrier frame (3) designed to roll on a rail (2) via tracer rollers (4) having axes of rotation (5) and comprising a grinding tool (14) which is adjustable relative to the rail (2), the carrier frame (3) being mounted for pivoting about a pivot axis (7), extending in the longitudinal direction of the rails, on an assembly frame (8) having guide rollers (22) for rolling on the rails (2), whereby tracer- as well as guide rollers (4,22) exhibit a respective rolling surface (43,44) intended for rolling on the rail (2), and a guiding member (40) designed for application to a vertical side surface (39) of the rail is connected to the assembly frame (8) so as to be able to be distanced with respect to the carrier frame (3), characterized in that - with the axes of rotation (5) of the tracer rollers (4) being positioned horizontally parallel to axes of rotation (23) of the guide rollers (22) - a roller contact point (46), defined by contact of the rolling surface (44) with the rail (2), of the guide roller (22) is arranged at a distance from and positioned higher with regard to a roller contact point (45) of the tracer roller (4), and in that a pivoting drive (30) is provided for pivoting the assembly frame (8) relative to the carrier frame (3).
    2. An apparatus according to claim 1, characterized in that two guiding members (40), formed as flanges (21), are provided which are distanced from one another in the direction of the axis of rotation (23) and connected to the guide roller (22), the guide roller (22) being mounted for displacement relative to the assembly frame (8) along a transverse guide (24) extending in the direction of the axis of rotation (23).
    3. An apparatus according to claim 2, characterized in that the transverse guide (24) is designed for supporting the guide rollers (22) on the assembly frame (8) so as to freely slide in the transverse direction of the track and comprises a pressure element (41) for returning the assembly frame (8) into a centered position with respect to the guide rollers (22).
    4. An apparatus according to claim 2 or 3, characterized in that the transverse guide (24) comprises a sliding sleeve (25) connected to axle supports (26) of the guide rollers (22), the sliding sleeve being displaceably mounted on a sliding beam (27) connected to the assembly frame (8).
    5. An apparatus according to claim 4, characterized in that sliding sleeve (25) and sliding beam (27) have a square cross-sectional profile.
    6. An apparatus according to one of claims 1 to 5, characterized in that the grinding tool (14) is formed as a rotating cup wheel (16) having a rotary axis (18) extending perpendicularly to the longitudinal direction of the rails.
    7. An apparatus according to one of claims 1 to 6, characterized in that the pivoting drive (30) is formed as a bevel gearing (31).
    8. An apparatus according to claim 7, characterized in that the bevel gearing (31) consists of a bevel wheel (33), mounted to the carrier frame (3) and arranged coaxially to the pivot axis (7) in a vertical plane extending perpendicularly to the longitudinal direction of the rails, and a driving pinion (34) connected to the assembly frame (8).
    9. An apparatus according to claim 8, characterized in that the bevel wheel (33) has a gear rim (32) extending over at least 180° of its circumference, and the diameter of the bevel wheel (33) amounts to a multiple of the diameter of the driving pinion (34).
    10. An apparatus according to one of claims 1 to 9, characterized by a drive motor (11) fastened to the assembly frame (8) and being connected by a flexible drive shaft (12) to a grinding unit (13) arranged on the carrier frame (3) and comprising the grinding tool (14).
    11. An apparatus according to one of claims 1 to 10, characterized in that the grinding tool (14) is designed to be displaceable relative to the rail (2) to be treated, in a direction perpendicular to the pivot axis (7), by means of a remotely controllable adjusting drive (20).
    12. An apparatus according to claim 11, characterized in that the assembly frame (8) has an upwardly projecting cross bar (9) on which are arranged operating elements for the adjusting drive (20) and the pivoting drive (30).
    EP96106162A 1995-05-19 1996-04-19 Device for grinding rails Expired - Lifetime EP0743395B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19518457A DE19518457A1 (en) 1995-05-19 1995-05-19 Device for grinding rails
    DE19518457 1995-05-19

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    EP0743395A1 EP0743395A1 (en) 1996-11-20
    EP0743395B1 true EP0743395B1 (en) 1999-03-17

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    EP (1) EP0743395B1 (en)
    CN (1) CN1090703C (en)
    AT (1) ATE177804T1 (en)
    BG (1) BG61981B1 (en)
    CA (1) CA2176910C (en)
    CZ (1) CZ285480B6 (en)
    DE (2) DE19518457A1 (en)
    DK (1) DK0743395T3 (en)
    ES (1) ES2131890T3 (en)
    HR (1) HRP960225B1 (en)
    HU (1) HU222131B1 (en)
    NO (1) NO307388B1 (en)
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    CN113481769B (en) * 2021-06-29 2023-03-14 苏州睿友智能装备有限公司 Intelligent steel rail profile grinding equipment

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    EP1126084A3 (en) * 2000-02-16 2002-10-02 Robel Bahnbaumaschinen GmbH Rail grinding apparatus
    EP1375749A2 (en) 2002-06-28 2004-01-02 Robel Bahnbaumaschinen GmbH Grinding machine

    Also Published As

    Publication number Publication date
    RO116215B1 (en) 2000-11-30
    DE59601438D1 (en) 1999-04-22
    NO307388B1 (en) 2000-03-27
    DK0743395T3 (en) 1999-09-27
    ATE177804T1 (en) 1999-04-15
    CN1138647A (en) 1996-12-25
    RU2113578C1 (en) 1998-06-20
    PL314145A1 (en) 1996-11-25
    CA2176910A1 (en) 1996-11-20
    CN1090703C (en) 2002-09-11
    DE19518457A1 (en) 1996-11-21
    NO962005L (en) 1996-11-20
    CZ285480B6 (en) 1999-08-11
    NO962005D0 (en) 1996-05-15
    HUP9601309A3 (en) 2002-02-28
    HU222131B1 (en) 2003-04-28
    YU49105B (en) 2003-12-31
    PL180671B1 (en) 2001-03-30
    HU9601309D0 (en) 1996-07-29
    HUP9601309A2 (en) 1998-04-28
    EP0743395A1 (en) 1996-11-20
    YU29296A (en) 1998-08-14
    CA2176910C (en) 2006-05-09
    SK63296A3 (en) 1996-12-04
    ES2131890T3 (en) 1999-08-01
    HRP960225B1 (en) 1999-10-31
    BG100598A (en) 1997-09-30
    BG61981B1 (en) 1998-11-30
    HRP960225A2 (en) 1997-08-31
    CZ143496A3 (en) 1996-12-11
    US5735734A (en) 1998-04-07

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