EP0665332B1 - Apparatus for grinding rails - Google Patents

Apparatus for grinding rails Download PDF

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Publication number
EP0665332B1
EP0665332B1 EP94890222A EP94890222A EP0665332B1 EP 0665332 B1 EP0665332 B1 EP 0665332B1 EP 94890222 A EP94890222 A EP 94890222A EP 94890222 A EP94890222 A EP 94890222A EP 0665332 B1 EP0665332 B1 EP 0665332B1
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EP
European Patent Office
Prior art keywords
rail
frame
track
grinding
roller
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
EP94890222A
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German (de)
French (fr)
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EP0665332A1 (en
Inventor
Bruno Ströbl
Josef Hertelendi
Sebastian Kreuzeder
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.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Publication of EP0665332A1 publication Critical patent/EP0665332A1/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

Definitions

  • the invention relates to a device for grinding rails Track, with a through support rollers with rotating axes on both rails
  • Supportable unit frame which is a grinding unit with one in the area a rail adjustable grinding element attached to a support frame is assigned, with the support frame together with the grinding member a swivel drive pivotable about a swivel axis on the unit frame is stored, and with a distance from the support frame on the Unit frame attached drive motor.
  • Devices of this type are used in particular for profile-correct grinding the treads and running edges of railroad tracks for removal of bumps on the rail head, as a result of wear or tear occur after welding.
  • a device for grinding rails of a track which has a unit frame that can be moved on support rollers. This is connected to a support frame in the area of one of the rails, on which a grinding wheel is arranged as a grinding member and based on a Serving as a swivel drive lever device at an angle to the longitudinal direction of the rail is adjustable.
  • the engine or the drive unit for the grinding element is on the side facing away from it of the unit frame and is connected to the grinding element by means of a flexible shaft connected. With this device, only the treads of the Rails can be ground.
  • EP 0 110 246 B1 describes a device with a support roller
  • a belt sanding unit with its motor attached to the support frame is equipped with a height-adjustable pressure roller and is a support frame additionally pivotable about a vertical axis.
  • the object of the present invention is now to create a Generic device for grinding rails, with the problem both the treads and the inner edges of the Rails are processed with a minimum of operational effort can.
  • This task is achieved with a device of the type mentioned solved that the distance between the support frame or in the longitudinal direction running swivel axis and one of the grinding unit in Support roller opposite track direction through a length compensation unit is designed to be reducible, this length compensation unit a pressure element for generating a when pivoting the support frame against the reduction in distance Automatically effective contact pressure of the grinding unit on an inner rail head flank of the rail to be ground.
  • the arrangement according to claim 2 ensures the greatest possible transverse adjustment of the support frame or distance reduction of the grinding member for opposite rail. This leads to a gradual build up of required contact pressure as part of the displacement of the swivel axis towards the rail head inner flank.
  • the device 1 shown in FIGS. 1 to 4 for grinding rails 2, 3 of a track 4 has one extending in the transverse direction of the track Unit frame 5 and a support frame running in the longitudinal direction of the track 6 on, in the area of the one rail 3 to be ground with the unit frame connected is.
  • the unit frame 5 consists of two Frame parts 7,8 together, each assigned to a rail 2 or 3 are.
  • the opposite of the support frame 6, distanced from it Frame part 7 consists of two angular beams aligned parallel to the rail 2 9 and two end-mounted between these and as double-track roller wheels with axes of rotation 11 trained support rollers 10 which on the Rail 2 are unrollable.
  • the frame part 8 has two in the longitudinal direction of the track spaced from each other cross members 12, which at one end by means a vertical plate 13 arranged between the rails 2, 3 is stable are connected.
  • the two frame parts 7, 8 are connected to one another via a Length compensation unit 14, which is an adjustment of the two frame parts 7.8 allowed to each other in the transverse direction of the track.
  • the length compensation unit 14 is composed of two running in the transverse direction of the track and on the plate 13 attached beams 15 formed, each in one with the angle beams 9 connected guide tube 16 are mounted telescopically.
  • Pressure element 17 in the form of a helical spring 18 spreads the two frame parts 7,8 in the transverse direction of the track against each other, one inside the Guide tubes 16 located stop 48 (Fig. 3) this apart movement limited and a separation of the frame parts 7,8 prevented.
  • the support frame 6 consists essentially of one - in its longitudinal center a cranked section 19 spaced from the rail 3 - Longitudinal beam 20, each in the area of its two ends in Track longitudinal direction and swivel axis running parallel to the track plane 21 is rotatably mounted in a bearing block 22.
  • These bearing blocks 22 are again in each case at the ends on the cross beams 12 of the assembly frame 5 or frame part 8 attached.
  • Support rollers 23 mounted as - with their axes of rotation 24 perpendicular to Swivel axis 21 running - flange-free rollers 25 formed are and to support the support frame 6 and unit frame 5 on the Serve rail 3.
  • a grinding unit 26 arranged with a grinding member 31 in the form of a rotating Cup wheel 61 equipped and using a parallelogram linkage 27 connected to a bracket 29 formed from support plates 28 which is attached to the support frame 6.
  • an adjustment drive 30 which is mounted in the holder 29 and with the parallelogram linkage 27 is connected, the grinding unit 26 or the grinding member 31 in its distance from the rail 3 adjusted to regulate the depth of cut will.
  • this is a grinding unit with a hydraulic motor 26 positioned so that a point of contact 47 of the grinding member 31 with the rail 3 lies on a connecting line 49, each by two by contact of the rollers 25 with the rail to be machined 3 formed roll contact points 60 is determined, the axis of rotation 62 of the cup wheel 61 perpendicular to the connecting line 49 or one Longitudinal axis of the rail 3 runs (Fig. 3).
  • hydraulic swivel drives 32 are provided, each on the cross beams 12 of the unit frame 5 and articulated on the side member 20.
  • a for power supply of the swivel drives 32 and the grinding unit 26 serving drive motor 33 with a hydraulic pump 34 is - from the support frame 6 distanced - on one with the plate 13 of the unit frame 5 connected console 35 arranged while controls 36 for said swivel drives 32 and a feed regulator 37 for the remote control of the adjustment drive 30 on a bracket 38 of the assembly frame 5 are located.
  • Power is supplied by hydraulic hoses 63.
  • a Actuation of the swivel drives 32 (not shown in FIG. 4) a rolling movement of the grinding member 31 in the cross-track direction around the head 39 of the Rail 3 (see dash-dotted outline), the - while of the entire pivoting movement located on said connecting line 49 - Rollers 25, the grinding member 31 always at the same distance hold to the rail head 39.
  • To be in the extreme swivel position To prevent the grinding unit 26 from slipping off the rail head 39, is on the support frame 6 next to each roller 25, a ring gear-like guide roller 40 attached to the at an angle of about 45 ° to the axis of rotation 24 Roller 25 inclined, perpendicular to the pivot axis 21 axis 41 is rotatable.
  • the guide roller 40 is with one for abutting the rail head 39 or an outer rail head edge 43 provided flange 42 equipped.
  • the pivot axis 21 of the support frame 6 is arranged such that it with the frame parts 7,8 at a maximum distance from each other - as in 1 to 3 shown - positioned on the outside of the rail 3 and both vertically and horizontally from the upper, outer rail head edge 44 is distanced. In this position, the horizontal tread 45 the rail worked.
  • FIGS. 5 and 6, 7 are the same for the sake of simplicity for functionally identical parts Keep the reference numerals used in the example above.
  • the device 50 for rail grinding shown in FIG. 5 has one unit frame 5 formed from only one part, with which a supporting frame 6 in the area of the rail 3 around a track running in the longitudinal direction of the track Pivot axis 21 is rotatably connected.
  • the unit frame is on the Rail 2 via a double track ring support roller 10 and on rail 3 via two further, attached to the unit frame 5 and as rollers 25th trained support rollers 23 mounted in the longitudinal direction of the track, wherein the rollers 25 each with a - to rest on the rail head inner flank 46 of the rail 3 provided - flange 51 are equipped.
  • the the support frame 6 opposite end of the unit frame 5 is as in the cross-track direction shaped support 15 on which the support roller 10 coaxially mounted and simultaneously slidable in the longitudinal direction of the carrier is.
  • the length compensation unit 14 formed in this way has one serving as a pressure member 17 coil spring 18, the contact pressure so is directed that all three support rollers to switch off the track play the rails 2, 3 are pressed.
  • the support frame 6 formed with a cranked section 19 is about a parallelogram linkage 27 connected to a grinding unit 26, whose grinding member 31 is adjustable perpendicular to the rail head 39.
  • Swivel drive 32 both on the support frame 6 and on the assembly frame 5 is articulated.
  • the support frame 6 is also with a driving element 52 equipped during the transverse swiveling of the grinding unit 26 is engaged with the rail head 39 and a transverse displacement the support frame 6 and thus also the unit frame 5 in the direction to rail 2 or to support roller 10. This will make the coil spring 18 compressed and exercises one against the rail head inner flank 46 of the rail 3 directed contact pressure of the grinding member 31.
  • the unit frame 5 consists of two in a joint 54 via intermediate members 55 together connected frame parts 56,57, of which the support frame 6 further spaced frame part 56 mounted on the rail 2 by means of support rollers 10 and is used to support the drive motor 33.
  • the support frame 6 is similar to the cranked example in the example described in FIGS. 1 to 4 and equipped with an adjustable grinding unit 26 and based on can be unrolled from rollers 25 on the rail 3.
  • guide rollers 40 are - like the rollers - cylindrical trained and arranged with their axes 41 so that they together enclose the rail head 39 at an acute angle with the rollers 25.
  • the joint 54 is a length compensation unit 14 formed, the transverse adjustment of the frame parts 56 and 57th of the unit frame 5 allowed to each other when the support frame 6 with the grinding unit 26 using the swivel drive 32 about the swivel axis 21 is rotated.
  • the four - forming the length compensation unit 14 - Intermediate members 55 are in the form of a lying in a horizontal plane Parallelogram rotatably articulated about vertically arranged axes 58 connected with each other and over a running in the longitudinal direction Spring 59 is biased.
  • the spring 59 is pulled apart and acts then as a pressure element, which via the intermediate members 55 or Frame part 57 against the rail head inner flank 46 of the rail 3 directed contact pressure of the grinding unit 26 exerts.
  • both grinding units with rotating Grinding disks or slip rings as well as belt grinding units alike easy to use.

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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)

Abstract

The distance between support frame (6) or the pivot axis (21) extending in longitudinal track direction, and a support roller (10) opposite to the grinder unit (26), is reducible by a length compensation unit (14). The unit has a device (17), to generate a contact pressure force for the grinder on an inner flank of the head of the rail (3) to be ground. The contact pressure acts against a distance reduction. With max. distance between frame and support roller, the pivot axis of the frame is located at a distance, outside the rail, to a top outer rail head edge, in horizontal and in vertical direction.

Description

Die Erfindung betrifft eine Einrichtung zum Schleifen von Schienen eines Gleises, mit einem durch Stützrollen mit Drehachsen auf beiden Schienen abstützbaren Aggregatrahmen, dem ein Schleifaggregat mit einem im Bereich einer Schiene verstellbar auf einem Tragrahmen befestigten Schleiforgan zugeordnet ist, wobei der Tragrahmen mitsamt dem Schleiforgan durch einen Schwenkantrieb um eine Schwenkachse verschwenkbar am Aggregatrahmen gelagert ist, sowie mit einem vom Tragrahmen distanziert auf dem Aggregatrahmen befestigten Antriebsmotor.The invention relates to a device for grinding rails Track, with a through support rollers with rotating axes on both rails Supportable unit frame, which is a grinding unit with one in the area a rail adjustable grinding element attached to a support frame is assigned, with the support frame together with the grinding member a swivel drive pivotable about a swivel axis on the unit frame is stored, and with a distance from the support frame on the Unit frame attached drive motor.

Derartige Einrichtungen dienen zum profilgerechten Abschleifen insbesondere der Laufflächen und Fahrkanten von Eisenbahnschienen zur Beseitigung von Unebenheiten am Schienenkopf, die als Folge von Verschleiß oder auch nach Schweißarbeiten auftreten.Devices of this type are used in particular for profile-correct grinding the treads and running edges of railroad tracks for removal of bumps on the rail head, as a result of wear or tear occur after welding.

In einem Inserat in der Zeitschrift "Progressive Railroading", April 1981, Seite 11, ist eine Einrichtung zum Schleifen von Schienen eines Gleises dargestellt, die einen auf Stützrollen gleisverfahrbaren Aggregatrahmen aufweist. Dieser ist im Bereich einer der Schienen mit einem Tragrahmen verbunden, an dem als Schleiforgan eine Schleifscheibe angeordnet und anhand einer als Schwenkantrieb dienenden Hebelvorrichtung im Winkel zur Schienenlängsrichtung verstellbar ausgebildet ist. Der Motor bzw. das Antriebsaggregat für das Schleiforgan befindet sich auf der von diesem abgewandten Seite des Aggregatrahmens und ist mittels einer flexiblen Welle mit dem Schleiforgan verbunden. Mit dieser Einrichtung sind lediglich die Laufflächen der Schienen abschleifbar.In an advertisement in the magazine "Progressive Railroading", April 1981, page 11, a device for grinding rails of a track is shown, which has a unit frame that can be moved on support rollers. This is connected to a support frame in the area of one of the rails, on which a grinding wheel is arranged as a grinding member and based on a Serving as a swivel drive lever device at an angle to the longitudinal direction of the rail is adjustable. The engine or the drive unit for the grinding element is on the side facing away from it of the unit frame and is connected to the grinding element by means of a flexible shaft connected. With this device, only the treads of the Rails can be ground.

In der EP 0 110 246 B1 wird eine Einrichtung mit einem über Stützrollen auf den Schienen verfahrbaren Aggregatrahmen beschrieben, an dem im Bereich einer der Schienen ein Tragrahmen angeordnet ist, der um eine in Gleislängsrichtung ausgerichtete Schwenkachse mittels eines auslegerartig am Aggregatrahmen angelenkten Spindelantriebes kippbar ausgebildet ist. EP 0 110 246 B1 describes a device with a support roller The rail-mounted unit frame described on the in the area one of the rails, a support frame is arranged, which in one Track longitudinal direction aligned pivot axis by means of a boom is tiltable on the unit frame articulated spindle drive.

Ein mitsamt seinem Motor am Tragrahmen befestigtes Bandschleifaggregat ist mit einer höhenverstellbaren Anpreßrolle ausgestattet und ist zum Tragrahmen zusätzlich um eine vertikale Achse verschwenkbar.A belt sanding unit with its motor attached to the support frame is equipped with a height-adjustable pressure roller and is a support frame additionally pivotable about a vertical axis.

Weiters sind gemäß einem Inserat in der Zeitschrift "Railway Track and Structures", April 1993, Seite 2, Einrichtungen zum Schleifen von Schienen bekannt, bei denen der Tragrahmen auf einem Aggregatrahmen über in Gleisquerrichtung verlaufende Führungen querverschiebbar montiert ist. Das Schleifaggregat ist mit dem Tragrahmen um eine parallel zur Schiene verlaufende Schwenkachse verschwenkbar verbunden, wobei der Vorschub des Schleiforganes senkrecht zur Schiene nach jeder Verschwenkung und Querverschiebung neu eingestellt wird.According to an advertisement in the magazine "Railway Track and Structures ", April 1993, page 2, devices for grinding rails known in which the support frame on an assembly frame over in Track transverse direction guides is mounted slidably. The Grinding unit is with the support frame around a parallel to the rail Swivel axis pivotally connected, the feed of the Grinding element perpendicular to the rail after each swiveling and transverse displacement is reset.

Andere bekannte Schienenschleifeinrichtungen sind zum Abrollen auf nur einer Schiene des Gleises ausgebildet und weisen einen ein Schleifaggregat samt Motor lagernden Tragrahmen auf, der über Stützrollen direkt auf der Schiene aufliegt und von einer Bedienungsperson während des Einsatzes in Balance gehalten werden muß. Zum Schleifen der seitlichen Schienenkopfkanten bzw. -flächen wird die Einrichtung in Gleisquerrichtung geneigt, wobei Halte- oder Führungsrollen ein Abrutschen des Schleifaggregates vom Schienenkopf verhindern.Other known rail grinders are for rolling on only formed a rail of the track and have a grinding unit including the motor bearing support frame, which is mounted directly on the support rollers Rail rests and in use by an operator during use Balance must be kept. For sanding the side rail head edges or surfaces, the device is inclined in the transverse direction of the track, whereby Holding or guide rollers a slipping of the grinding unit from Prevent rail head.

Die Aufgabe der vorliegenden Erfindung besteht nun in der Schaffung einer gattungsgemäßen Einrichtung zum Schleifen von Schienen, mit der problemlos sowohl die Laufflächen als auch die innenliegenden Fahrkanten der Schienen mit einem Minimum an operativem Arbeitsaufwand bearbeitet werden können.The object of the present invention is now to create a Generic device for grinding rails, with the problem both the treads and the inner edges of the Rails are processed with a minimum of operational effort can.

Diese Aufgabe wird mit einer Einrichtung der eingangs genannten Art dadurch gelöst, daß der Abstand zwischen Tragrahmen bzw. der in Gleislängsrichtung verlaufenden Schwenkachse und einer dem Schleifaggregat in Gleisquerrichtung gegenüberliegenden Stützrolle durch eine Längenkompensationseinheit reduzierbar ausgebildet ist, wobei diese Längenkompensationseinheit ein Druckorgan zur Erzeugung einer beim Verschwenken des Tragrahmens gegen die Abstandsreduktion automatisch wirksamen Anpreßkraft des Schleifaggregates an eine Schienenkopfinnenflanke der zu schleifenden Schiene aufweist. This task is achieved with a device of the type mentioned solved that the distance between the support frame or in the longitudinal direction running swivel axis and one of the grinding unit in Support roller opposite track direction through a length compensation unit is designed to be reducible, this length compensation unit a pressure element for generating a when pivoting the support frame against the reduction in distance Automatically effective contact pressure of the grinding unit on an inner rail head flank of the rail to be ground.

Eine derart ausgebildete Einrichtung ermöglicht es nun erstmals, den zum Schleifen der Innenflanken einer Schiene erforderlichen Anpreßdruck des Schleiforganes weitgehend selbsttätig bzw. automatisch aufzubringen, wobei hierzu weder die Muskelkraft einer Bedienungsperson noch etwaige aufwendige Steuerungsmechanismen erforderlich sind. Im Rahmen der geoffenbarten Lösung kann auf konstruktiv einfachste Art erreicht werden, daß eine Querverschwenkung des Schleiforganes gleichzeitig auch eine Verkürzung des Aggregatrahmens in Gleisquerrichtung bewirkt, mit der in optimaler Weise ein Anspannen des Druckorganes zur Erzeugung der Anpreßkraft einhergeht. Neben einer Erhöhung der Arbeitsqualität wird dadurch auch eine wesentliche Vereinfachung des Bedienungsaufwandes und eine Entlastung des Arbeitspersonales erzielt.Such a device now makes it possible for the first time to Grinding the inner flanks of a rail required contact pressure Applying the grinding member largely automatically or automatically, whereby for this neither the muscle strength of an operator nor any complex Control mechanisms are required. As part of the disclosed Solution can be achieved in a structurally simplest way that a Cross-pivoting of the grinding element also shortened at the same time of the unit frame in the transverse direction of the track, with the optimally a tensioning of the pressure element is accompanied by the generation of the contact pressure. In addition to increasing the quality of work, this also becomes an essential one Simplification of the operating effort and a relief of the Workforce achieved.

Die Anordnung gemäß Anspruch 2 gewährleistet die größtmögliche Querverstellung des Tragrahmens bzw. Abstandsreduktion des Schleiforganes zur gegenüberliegenden Schiene. Dies führt zu einem allmählichen Aufbau der erforderlichen Anpreßkraft im Rahmen der Verlagerung der Schwenkachse in Richtung zur Schienenkopfinnenflanke.The arrangement according to claim 2 ensures the greatest possible transverse adjustment of the support frame or distance reduction of the grinding member for opposite rail. This leads to a gradual build up of required contact pressure as part of the displacement of the swivel axis towards the rail head inner flank.

Bei den Weiterbildungen gemäß den Ansprüchen 3, 4 und 5 werden in vorteilhafter Weise die Stützrollen gleichzeitig als - das Schleiforgan im korrekten Abstand auf dem Schienenkopf führende - Laufrollen verwendet, wobei dieser Abstand auch während der Verschwenkung des Tragrahmens um die in Gleislängsrichtung verlaufende Schwenkachse beibehalten wird. Dies hilft auch, um ein Kopieren bzw. Verstärken von kurzwelligen Schienenunebenheiten mit dem Schleiforgan zu verhindern.In the developments according to claims 3, 4 and 5 are advantageous Show the support rollers simultaneously as - the grinding element in the correct Distance leading on the rail head - rollers used, whereby this distance even during the pivoting of the support frame around the pivot axis extending in the longitudinal direction of the track is maintained. This helps also to copy or amplify short-wave bumps to prevent with the grinding element.

Die Merkmale der Ansprüche 6 bis 8 beschreiben eine bevorzugte Ausführungsform der Längenkompensationseinheit, die sich durch konstruktive Einfachheit und Zuverlässigkeit auszeichnet.The features of claims 6 to 8 describe a preferred embodiment the length compensation unit, which is characterized by constructive simplicity and reliability.

Die in Anspruch 9 bis 11 beschriebene Variante stellt sicher, daß es bei maximaler Querverschwenkung des Schleiforganes und Tragrahmens zum Schleifen der Schienenkopfinnenflanken zu keinem schwerkraftbedingten Abrutschen des Tragrahmens vom Schienenkopf kommen kann. Schließlich bewirken die Ausbildungsmerkmale gemäß den Ansprüchen 12 bis 14 eine Erhöhung der Bedienerfreundlichkeit und eine wesentliche ergonomische Verbesserung der Schienenschleifeinrichtung.The variant described in claims 9 to 11 ensures that it is at maximum Cross swiveling of the grinding element and support frame for Grinding the rail head inside flanks to no gravity-related The support frame can slip off the rail head. Finally, the training features according to claims 12 up to 14 an increase in user friendliness and an essential ergonomic Improvement of the rail grinding device.

Die Erfindung wird im folgenden anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben.The invention is illustrated below with reference to the drawings Embodiments described in more detail.

Es zeigen:

  • Fig. 1 eine Ansicht in Gleislängsrichtung einer erfindungsgemäß ausgebildeten Einrichtung zum Schienenschleifen,
  • Fig. 2 eine Draufsicht auf die Einrichtung in Fig. 1,
  • Fig. 3 eine räumliche Darstellung der Einrichtung, bei der zur besseren Sichtbarkeit Teile weggelassen wurden,
  • Fig. 4 eine stark vereinfachte Detailansicht der Einrichtung in Gleislängsrichtung,
  • Fig. 5 eine schematisierte Schrägansicht eines anderen erfindungsgemäßen Ausführungsbeispieles,
  • Fig. 6 eine ebenfalls stark schematisierte Ansicht in Gleislängsrichtung einer weiteren Variante der Erfindung, und
  • Fig. 7 eine Draufsicht auf die Längenkompensationseinheit gemäß Pfeil VII in Fig. 6.
    • Show it:
  • 1 is a view in the longitudinal direction of a rail grinding device designed according to the invention,
  • 2 is a plan view of the device in FIG. 1,
  • 3 is a spatial representation of the device, in which parts have been omitted for better visibility,
  • 4 is a highly simplified detailed view of the device in the longitudinal direction of the track,
  • 5 shows a schematic oblique view of another exemplary embodiment according to the invention,
  • Fig. 6 is also a highly schematic view in the longitudinal direction of a further variant of the invention, and
  • 7 is a plan view of the length compensation unit according to arrow VII in FIG. 6.

    • Die in den Fig. 1 bis 4 dargestellte Einrichtung 1 zum Schleifen von Schienen 2,3 eines Gleises 4 weist einen sich in Gleisquerrichtung erstreckenden Aggregatrahmen 5 und einen in Gleislängsrichtung verlaufenden Tragrahmen 6 auf, der im Bereich der einen, zu schleifenden Schiene 3 mit dem Aggregatrahmen verbunden ist. Der Aggregatrahmen 5 setzt sich aus zwei Rahmenteilen 7,8 zusammen, die jeweils einer Schiene 2 bzw. 3 zugeordnet sind. Der dem Tragrahmen 6 gegenüberliegende, von diesem distanzierte Rahmenteil 7 besteht aus zwei parallel zur Schiene 2 ausgerichteten Winkelträgern 9 sowie zwei endseitig zwischen diesen befestigten und als Doppelspurkranzrollen mit Drehachsen 11 ausgebildeten Stützrollen 10, die auf der Schiene 2 abrollbar sind. Der Rahmenteil 8 weist zwei in Gleislängsrichtung voneinander distanzierte Querträger 12 auf, die an ihrem einen Ende mittels einer zwischen den Schienen 2,3 angeordneten vertikalen Platte 13 stabil verbunden sind.The device 1 shown in FIGS. 1 to 4 for grinding rails 2, 3 of a track 4 has one extending in the transverse direction of the track Unit frame 5 and a support frame running in the longitudinal direction of the track 6 on, in the area of the one rail 3 to be ground with the unit frame connected is. The unit frame 5 consists of two Frame parts 7,8 together, each assigned to a rail 2 or 3 are. The opposite of the support frame 6, distanced from it Frame part 7 consists of two angular beams aligned parallel to the rail 2 9 and two end-mounted between these and as double-track roller wheels with axes of rotation 11 trained support rollers 10 which on the Rail 2 are unrollable. The frame part 8 has two in the longitudinal direction of the track spaced from each other cross members 12, which at one end by means a vertical plate 13 arranged between the rails 2, 3 is stable are connected.

    Die Verbindung der beiden Rahmenteile 7,8 miteinander erfolgt über eine Längenkompensationseinheit 14, die eine Verstellung der beiden Rahmenteile 7,8 zueinander in Gleisquerrichtung erlaubt. Die Längenkompensationseinheit 14 ist aus zwei in Gleisquerrichtung verlaufenden und an der Platte 13 befestigten Trägern 15 gebildet, die jeweils in einem mit den Winkelträgern 9 verbundenen Führungsrohr 16 teleskopisch verschiebbar gelagert sind. Ein auf jedem Träger 15 zwischen Führungsrohr 16 und Platte 13 angeordnetes Druckorgan 17 in Form einer Schraubenfeder 18 spreizt die beiden Rahmenteile 7,8 in Gleisquerrichtung gegeneinander, wobei ein im Inneren der Führungsrohre 16 befindlicher Anschlag 48 (Fig. 3) diese Auseinanderbewegung begrenzt und ein Trennen der Rahmenteile 7,8 verhindert.The two frame parts 7, 8 are connected to one another via a Length compensation unit 14, which is an adjustment of the two frame parts 7.8 allowed to each other in the transverse direction of the track. The length compensation unit 14 is composed of two running in the transverse direction of the track and on the plate 13 attached beams 15 formed, each in one with the angle beams 9 connected guide tube 16 are mounted telescopically. One arranged on each support 15 between the guide tube 16 and plate 13 Pressure element 17 in the form of a helical spring 18 spreads the two frame parts 7,8 in the transverse direction of the track against each other, one inside the Guide tubes 16 located stop 48 (Fig. 3) this apart movement limited and a separation of the frame parts 7,8 prevented.

    Der Tragrahmen 6 besteht im wesentlichen aus einem - in seiner Längsmitte einen von der Schiene 3 distanzierten, gekröpften Abschnitt 19 aufweisenden - Längsträger 20, der im Bereich seiner beiden Enden jeweils um eine in Gleislängsrichtung und parallel zur Gleisebene verlaufende Schwenkachse 21 rotierbar in einem Lagerblock 22 gelagert ist. Diese Lagerblöcke 22 sind wiederum jeweils endseitig an den Querträgern 12 des Aggregatrahmens 5 bzw. Rahmenteiles 8 befestigt. An den äußersten Enden des jeweils über den Querträger 12 vorragenden Längsträgers 20 des Tragrahmens 6 sind Stützrollen 23 montiert, die als - mit ihren Drehachsen 24 senkrecht zur Schwenkachse 21 verlaufende - spurkranzlose Laufrollen 25 ausgebildet sind und zur Abstützung des Tragrahmens 6 und Aggregatrahmens 5 auf der Schiene 3 dienen. The support frame 6 consists essentially of one - in its longitudinal center a cranked section 19 spaced from the rail 3 - Longitudinal beam 20, each in the area of its two ends in Track longitudinal direction and swivel axis running parallel to the track plane 21 is rotatably mounted in a bearing block 22. These bearing blocks 22 are again in each case at the ends on the cross beams 12 of the assembly frame 5 or frame part 8 attached. At the extreme ends of each over the cross member 12 projecting longitudinal member 20 of the support frame 6 Support rollers 23 mounted as - with their axes of rotation 24 perpendicular to Swivel axis 21 running - flange-free rollers 25 formed are and to support the support frame 6 and unit frame 5 on the Serve rail 3.

    Innerhalb des gekröpften Abschnittes 19 des Tragrahmens 6 ist ein Schleifaggregat 26 angeordnet, das mit einem Schleiforgan 31 in Form einer rotierenden Topfscheibe 61 ausgestattet und anhand einer Parallelogrammanlenkung 27 mit einer aus Stützplatten 28 gebildeten Halterung 29 verbunden ist, die auf dem Tragrahmen 6 befestigt ist. Mittels eines Verstellantriebes 30, der in der Halterung 29 montiert und mit der Parallelogrammanlenkung 27 verbunden ist, kann das Schleifaggregat 26 bzw. das Schleiforgan 31 in seinem Abstand zur Schiene 3 zwecks Regulierung der Abtragtiefe verstellt werden. Im Arbeitseinsatz ist das, einen Hydromotor aufweisende Schleifaggregat 26 so positioniert, daß ein Berührungspunkt 47 des Schleiforganes 31 mit der Schiene 3 auf einer Verbindungslinie 49 liegt, die durch zwei jeweils durch einen Kontakt der Laufrollen 25 mit der zu bearbeitenden Schiene 3 gebildete Rollenaufstandspunkte 60 bestimmt ist, wobei die Rotationsachse 62 der Topfscheibe 61 senkrecht zur Verbindungslinie 49 bzw. einer Längsachse der Schiene 3 verläuft (Fig. 3).Within the cranked section 19 of the support frame 6 is a grinding unit 26 arranged with a grinding member 31 in the form of a rotating Cup wheel 61 equipped and using a parallelogram linkage 27 connected to a bracket 29 formed from support plates 28 which is attached to the support frame 6. By means of an adjustment drive 30, which is mounted in the holder 29 and with the parallelogram linkage 27 is connected, the grinding unit 26 or the grinding member 31 in its distance from the rail 3 adjusted to regulate the depth of cut will. In work use, this is a grinding unit with a hydraulic motor 26 positioned so that a point of contact 47 of the grinding member 31 with the rail 3 lies on a connecting line 49, each by two by contact of the rollers 25 with the rail to be machined 3 formed roll contact points 60 is determined, the axis of rotation 62 of the cup wheel 61 perpendicular to the connecting line 49 or one Longitudinal axis of the rail 3 runs (Fig. 3).

    Zur Verschwenkung des Tragrahmens 6 um die Schwenkachse 21 sind zwei hydraulische Schwenkantriebe 32 vorgesehen, die jeweils an den Querträgern 12 des Aggregatrahmens 5 und am Längsträger 20 angelenkt sind. Ein zur Energieversorgung der Schwenkantriebe 32 und des Schleifaggregates 26 dienender Antriebsmotor 33 mit einer Hydraulikpumpe 34 ist - vom Tragrahmen 6 distanziert - auf einer mit der Platte 13 des Aggregatrahmens 5 verbundenen Konsole 35 angeordnet, während sich Bedienungselemente 36 für besagte Schwenkantriebe 32 und ein Vorschubregler 37 für die Fernbedienung des Verstellantriebes 30 auf einem Bügel 38 des Aggregatrahmens 5 befinden. Die Energieversorgung erfolgt durch Hydraulikschläuche 63.There are two for pivoting the support frame 6 about the pivot axis 21 hydraulic swivel drives 32 are provided, each on the cross beams 12 of the unit frame 5 and articulated on the side member 20. A for power supply of the swivel drives 32 and the grinding unit 26 serving drive motor 33 with a hydraulic pump 34 is - from the support frame 6 distanced - on one with the plate 13 of the unit frame 5 connected console 35 arranged while controls 36 for said swivel drives 32 and a feed regulator 37 for the remote control of the adjustment drive 30 on a bracket 38 of the assembly frame 5 are located. Power is supplied by hydraulic hoses 63.

    Wie nun insbesondere auch anhand der Fig. 4 zu erkennen ist, bewirkt eine Betätigung der (in Fig. 4 nicht gezeigten) Schwenkantriebe 32 eine Abrollbewegung des Schleiforganes 31 in Gleisquerrichtung um den Kopf 39 der Schiene 3 (siehe strichdoppelpunktierte Umrißlinien), wobei die - während der gesamten Schwenkbewegung auf der genannten Verbindungslinie 49 befindlichen - Laufrollen 25 das Schleiforgan 31 immer im gleichen Abstand zum Schienenkopf 39 halten. Um in der extremen Verschwenkstellung ein Abrutschen des Schleifaggregates 26 vom Schienenkopf 39 zu verhindern, ist am Tragrahmen 6 neben jeder Laufrolle 25 eine tellerradartige Führungsrolle 40 befestigt, die um eine etwa 45° im Winkel zur Drehachse 24 der Laufrolle 25 geneigte, senkrecht zur Schwenkachse 21 verlaufende Achse 41 rotierbar ist. Die Führungsrolle 40 ist mit einem zur Anlage an den Schienenkopf 39 bzw. eine äußere Schienenkopfkante 43 vorgesehenen Spurkranz 42 ausgestattet.As can now be seen in particular from FIG. 4, a Actuation of the swivel drives 32 (not shown in FIG. 4) a rolling movement of the grinding member 31 in the cross-track direction around the head 39 of the Rail 3 (see dash-dotted outline), the - while of the entire pivoting movement located on said connecting line 49 - Rollers 25, the grinding member 31 always at the same distance hold to the rail head 39. To be in the extreme swivel position To prevent the grinding unit 26 from slipping off the rail head 39, is on the support frame 6 next to each roller 25, a ring gear-like guide roller 40 attached to the at an angle of about 45 ° to the axis of rotation 24 Roller 25 inclined, perpendicular to the pivot axis 21 axis 41 is rotatable. The guide roller 40 is with one for abutting the rail head 39 or an outer rail head edge 43 provided flange 42 equipped.

    Die Schwenkachse 21 des Tragrahmens 6 ist derart angeordnet, daß sie, bei maximal voneinander distanzierter Stellung der Rahmenteile 7,8 - wie in Fig. 1 bis 3 dargestellt - an der Außenseite der Schiene 3 positioniert und sowohl vertikal als auch horizontal von der oberen, äußeren Schienenkopfkante 44 distanziert ist. In dieser Stellung wird die horizontale Lauffläche 45 der Schiene bearbeitet. Wird nun der Tragrahmen 6 mitsamt dem Schleifaggregat 26 anhand der Schwenkantriebe 32 zur Bearbeitung der Schienenkopfinnenflanke 46 gekippt, kommt es zu einer zwangsläufigen Verlagerung der Schwenkachse 21 in Richtung zu den gegenüberliegenden Stützrollen 10 und somit zu einer Kompression des Druckorganes 17 der Längenkompensationseinheit 14, die dieser Abstandsreduktion zwischen Schwenkachse und Stützrollen entgegenwirkt und auf diese Art eine Anpreßkraft erzeugt, mit der das Schleiforgan 31 an den Schienenkopf 39 seitlich angepreßt wird.The pivot axis 21 of the support frame 6 is arranged such that it with the frame parts 7,8 at a maximum distance from each other - as in 1 to 3 shown - positioned on the outside of the rail 3 and both vertically and horizontally from the upper, outer rail head edge 44 is distanced. In this position, the horizontal tread 45 the rail worked. Now the support frame 6 together with the grinding unit 26 on the basis of the swivel drives 32 for machining the inside of the rail head 46 tilted, there is an inevitable relocation the pivot axis 21 in the direction of the opposite support rollers 10 and thus to a compression of the pressure element 17 of the length compensation unit 14, this reduction in distance between pivot axis counteracts support rollers and generates a contact pressure in this way, with which the grinding member 31 is pressed laterally on the rail head 39.

    Zur Beschreibung der in Fig. 5 und 6, 7 gezeigten weiteren Ausführungsbeispiele werden der Einfachheit halber für funktionsgleiche Teile die bereits beim obigen Beispiel verwendeten Bezugszeichen beibehalten.To describe the further exemplary embodiments shown in FIGS. 5 and 6, 7 are the same for the sake of simplicity for functionally identical parts Keep the reference numerals used in the example above.

    Die in Fig. 5 dargestellte Einrichtung 50 zum Schienenschleifen weist einen aus nur einem Teil gebildeten Aggregatrahmen 5 auf, mit dem ein Tragrahmen 6 im Bereich der Schiene 3 um eine in Gleislängsrichtung verlaufende Schwenkachse 21 rotierbar verbunden ist. Der Aggregatrahmen ist auf der Schiene 2 über eine Doppelspurkranz-Stützrolle 10 und auf der Schiene 3 über zwei weitere, am Aggregatrahmen 5 befestigte und als Laufrollen 25 ausgebildete Stützrollen 23 in Gleislängsrichtung verfahrbar gelagert, wobei die Laufrollen 25 jeweils mit einem - zur Anlage an die Schienenkopfinnenflanke 46 der Schiene 3 vorgesehenen - Spurkranz 51 ausgestattet sind. Das dem Tragrahmen 6 gegenüberliegende Ende des Aggregatrahmens 5 ist als in Gleisquerrichtung verlaufender Träger 15 geformt, auf dem die Stützrolle 10 koaxial montiert und gleichzeitig in Längsrichtung des Trägers verschiebbar ist. Die solcherart gebildete Längenkompensationseinheit 14 weist eine als Druckorgan 17 dienende Schraubenfeder 18 auf, deren Anpreßkraft so gerichtet ist, daß alle drei Stützrollen zur Ausschaltung des Spurspieles an die Schienen 2,3 angedrückt werden.The device 50 for rail grinding shown in FIG. 5 has one unit frame 5 formed from only one part, with which a supporting frame 6 in the area of the rail 3 around a track running in the longitudinal direction of the track Pivot axis 21 is rotatably connected. The unit frame is on the Rail 2 via a double track ring support roller 10 and on rail 3 via two further, attached to the unit frame 5 and as rollers 25th trained support rollers 23 mounted in the longitudinal direction of the track, wherein the rollers 25 each with a - to rest on the rail head inner flank 46 of the rail 3 provided - flange 51 are equipped. The the support frame 6 opposite end of the unit frame 5 is as in the cross-track direction shaped support 15 on which the support roller 10 coaxially mounted and simultaneously slidable in the longitudinal direction of the carrier is. The length compensation unit 14 formed in this way has one serving as a pressure member 17 coil spring 18, the contact pressure so is directed that all three support rollers to switch off the track play the rails 2, 3 are pressed.

    Der mit einem gekröpften Abschnitt 19 ausgebildete Tragrahmen 6 ist über eine Parallelogrammanlenkung 27 mit einem Schleifaggregat 26 verbunden, dessen Schleiforgan 31 senkrecht zum Schienenkopf 39 verstellbar ist. Zur Verschwenkung des Tragrahmens 6 samt Schleifaggregat 26 um die Schwenkachse 21 (siehe strichdoppelpunktiert gezeigte Stellung) dient ein Schwenkantrieb 32, der sowohl am Tragrahmen 6 als auch am Aggregatrahmen 5 angelenkt ist. Der Tragrahmen 6 ist außerdem mit einem Mitnehmerorgan 52 ausgestattet, das während der Querverschwenkung des Schleifaggregates 26 mit dem Schienenkopf 39 in Eingriff steht und eine Querverschiebung des Tragrahmens 6 und somit auch des Aggregatrahmens 5 in Richtung zur Schiene 2 bzw. zur Stützrolle 10 bewirkt. Dadurch wird die Schraubenfeder 18 zusammengedrückt und übt eine gegen die Schienenkopfinnenflanke 46 der Schiene 3 gerichtete Anpreßkraft des Schleiforganes 31 aus.The support frame 6 formed with a cranked section 19 is about a parallelogram linkage 27 connected to a grinding unit 26, whose grinding member 31 is adjustable perpendicular to the rail head 39. For Swiveling of the support frame 6 together with the grinding unit 26 around Swivel axis 21 (see the position shown by two-dot chain lines) is used Swivel drive 32, both on the support frame 6 and on the assembly frame 5 is articulated. The support frame 6 is also with a driving element 52 equipped during the transverse swiveling of the grinding unit 26 is engaged with the rail head 39 and a transverse displacement the support frame 6 and thus also the unit frame 5 in the direction to rail 2 or to support roller 10. This will make the coil spring 18 compressed and exercises one against the rail head inner flank 46 of the rail 3 directed contact pressure of the grinding member 31.

    Fig. 6 und 7 zeigen eine Schienenschleif-Einrichtung 53 mit einem Tragrahmen 6, der mit einem Aggregatrahmen 5 um eine parallel zur Schiene 3 verlaufende Schwenkachse 21 drehbar verbunden ist. Der Aggregatrahmen 5 besteht aus zwei in einem Gelenk 54 über Zwischenglieder 55 miteinander verbundenen Rahmenteilen 56,57, von denen der vom Tragrahmen 6 weiter distanzierte Rahmenteil 56 auf der Schiene 2 mittels Stützrollen 10 gelagert ist und zur Abstützung des Antriebsmotors 33 dient. Der Tragrahmen 6 ist ähnlich wie beim in Fig. 1 bis 4 beschriebenen Beispiel gekröpft ausgebildet und mit einem verstellbaren Schleifaggregat 26 ausgestattet sowie anhand von Laufrollen 25 auf der Schiene 3 abrollbar. Die den Laufrollen 25 zugeordneten Führungsrollen 40 sind hier jedoch - so wie die Laufrollen - walzenförmig ausgebildet und mit ihren Achsen 41 so angeordnet, daß sie zusammen mit den Laufrollen 25 den Schienenkopf 39 spitzwinkelig umschließen. 6 and 7 show a rail grinding device 53 with a support frame 6, with a unit frame 5 around a parallel to the rail 3 Pivot axis 21 is rotatably connected. The unit frame 5 consists of two in a joint 54 via intermediate members 55 together connected frame parts 56,57, of which the support frame 6 further spaced frame part 56 mounted on the rail 2 by means of support rollers 10 and is used to support the drive motor 33. The support frame 6 is similar to the cranked example in the example described in FIGS. 1 to 4 and equipped with an adjustable grinding unit 26 and based on can be unrolled from rollers 25 on the rail 3. The assigned to the rollers 25 However, guide rollers 40 are - like the rollers - cylindrical trained and arranged with their axes 41 so that they together enclose the rail head 39 at an acute angle with the rollers 25.

    Wie in Fig. 7 zu erkennen, ist das Gelenk 54 als Längenkompensationseinheit 14 ausgebildet, die eine Querverstellung der Rahmenteile 56 und 57 des Aggregatrahmens 5 zueinander erlaubt, wenn der Tragrahmen 6 mit dem Schleifaggregat 26 anhand des Schwenkantriebes 32 um die Schwenkachse 21 gedreht wird. Die vier - die Längenkompensationseinheit 14 bildenden - Zwischenglieder 55 sind in Form eines in einer waagrechten Ebene liegenden Parallelogramms um senkrecht angeordnete Achsen 58 rotierbar gelenkig miteinander verbunden und über eine in Gleislängsrichtung verlaufende Feder 59 mit einer Vorspannung beaufschlagt. Infolge der Querverschiebung des Rahmenteiles 57 wird die Feder 59 auseinandergezogen und fungiert sodann als Druckorgan, das über die Zwischenglieder 55 bzw. den Rahmenteil 57 eine gegen die Schienenkopfinnenflanke 46 der Schiene 3 gerichtete Anpreßkraft des Schleifaggregates 26 ausübt.As can be seen in FIG. 7, the joint 54 is a length compensation unit 14 formed, the transverse adjustment of the frame parts 56 and 57th of the unit frame 5 allowed to each other when the support frame 6 with the grinding unit 26 using the swivel drive 32 about the swivel axis 21 is rotated. The four - forming the length compensation unit 14 - Intermediate members 55 are in the form of a lying in a horizontal plane Parallelogram rotatably articulated about vertically arranged axes 58 connected with each other and over a running in the longitudinal direction Spring 59 is biased. As a result of the transverse displacement of the frame part 57, the spring 59 is pulled apart and acts then as a pressure element, which via the intermediate members 55 or Frame part 57 against the rail head inner flank 46 of the rail 3 directed contact pressure of the grinding unit 26 exerts.

    Im Rahmen der Erfindung sind sowohl Schleifaggregate mit rotierenden Schleifscheiben bzw. Schleifringen als auch Bandschleifaggregate gleichermaßen problemlos einsetzbar.In the context of the invention, both grinding units with rotating Grinding disks or slip rings as well as belt grinding units alike easy to use.

    Claims (14)

    1. An apparatus (1;50;53) for grinding rails of a track (4), comprising a machine frame (5), supportable on both rails (2,3) by means of support rollers (10,23) having axes of rotation (11,24), with which is associated a grinding unit (26) having a grinding element (31) adjustably fastened to a carrier frame (6) in the region of one rail (3), the carrier frame (6) together with the grinding element (31) being mounted on the machine frame (5) for pivoting about a pivot axis (21) by means of a pivot drive (32), and also comprising a drive motor (33) fastened to the machine frame (5) at a distance from the carrier frame (6), characterized in that the distance between the carrier frame (6) or rather the pivot axis (21), extending in the longitudinal direction of the track, and a support roller (10) positioned opposite the grinding unit (26) in the transverse direction of the track is designed to be reducible by means of a length compensation unit (14), said length compensation unit (14) including a pressure-exerting element (17) for generating a force for pressing the grinding unit (26) onto a gauge-side rail head flank (46) of the rail (3) to be ground, said force acting to counter the distance reduction automatically upon pivoting of the carrier frame (6).
    2. An apparatus according to claim 1, characterized in that - in the event of maximal distancing of the carrier frame (6) from the support roller (10) lying opposite - the pivot axis (21) of the carrier frame (6) is spaced in a horizontal as well as a vertical direction from an upper field-side rail head edge (44) of the rail (3) to be treated and positioned at the field side of the rail.
    3. An apparatus according to claim 1 or 2, characterized in that the support rollers (23) designed to roll on the rail (3) to be treated are fastened directly to the carrier frame (6) and are in the shape of track rollers (25) positioned so that their axes of rotation (24) are perpendicular to the pivot axis (21) extending in the longitudinal direction of the track and horizontally.
    4. An apparatus according to claim 3, characterized in that a contact point (47) of the grinding element (31) with the rail (3) is located on a connecting line (49) which is defined by two roller contact points (60) formed respectively by contact of the track rollers (25) with the rail (3) to be treated.
    5. An apparatus according to claim 4, characterized in that the grinding element (31) of the grinding unit (26) is formed as a rotating cup wheel (61) having an axis of rotation (62) extending perpendicularly to the connecting line (49).
    6. An apparatus according to one of claims 1 to 5, characterized in that the machine frame (5) consists of two frame parts (7,8;56,57) - each supported on one of the rails (2,3) - which are connected to one another by means of the length compensation unit (14) and which are adjustable with respect to one another in the transverse direction of the track.
    7. An apparatus according to claim 6, characterized in that a support roller (10), supporting on the rail (2) the frame part (7;56) which is spaced from the carrier frame (6), is shaped as a double-flanged roller.
    8. An apparatus according to one of claims 1 to 7, characterized in that the length compensation unit (14) consists of a support bar (15), extending in the transverse direction of the track, which is fastened to one frame part (8) and mounted for displacement with regard to its longitudinal direction on the other frame part (7), the pressure-exerting element (17) being arranged between the two frame parts (7,8) and having the shape of a helical spring (18) compressible as a result of the distance reduction.
    9. An apparatus according to one of claims 3 to 8, characterized in that associated with each track roller (25) is a guide roller (40) fastened to the carrier frame (6) and rotatable about an axis (41) extending perpendicularly to the pivot axis (21) and at an angle to the axis of rotation (24) of the track roller (25).
    10. An apparatus according to claim 9, characterized in that the guide roller (40) has a flange (42) for application to a field-side rail head edge (43) spaced from the track roller (25).
    11. An apparatus according to one of claims 9 to 11, characterized in that the angle included between the axis of rotation (24) of the track roller (25) and the axis (41) of the guide roller (40) measures approximately 45°.
    12. An apparatus according to one of claims 1 to 11, characterized in that the pivot drive (32) is designed as a hydraulic drive which is hinged to both the machine frame (5) and the carrier frame (6).
    13. An apparatus according to one of claims 1 to 12, characterized in that the grinding unit (26) is designed to be adjustable on the carrier frame (6), with regard to the rail (3) to be treated, by means of a remotely controllable adjusting drive (30) in a direction perpendicular to the pivot axis (21).
    14. An apparatus according to one of claims 1 to 13, characterized in that the machine frame (5) has an upwardly projecting handle bar (38) on which control elements (36) for the drive motor (33) and the grinding unit (26) are arranged.
    EP94890222A 1994-02-01 1994-12-28 Apparatus for grinding rails Expired - Lifetime EP0665332B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    AT180/94 1994-02-01
    AT18094 1994-02-01

    Publications (2)

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    EP0665332A1 EP0665332A1 (en) 1995-08-02
    EP0665332B1 true EP0665332B1 (en) 1998-04-15

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    EP94890222A Expired - Lifetime EP0665332B1 (en) 1994-02-01 1994-12-28 Apparatus for grinding rails

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    US (1) US5575709A (en)
    EP (1) EP0665332B1 (en)
    CN (1) CN1097662C (en)
    AT (1) ATE165129T1 (en)
    CA (1) CA2141511C (en)
    CZ (1) CZ280997B6 (en)
    DE (1) DE59405715D1 (en)
    RU (1) RU2083753C1 (en)
    SK (1) SK280807B6 (en)

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    Also Published As

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    SK280807B6 (en) 2000-08-14
    ATE165129T1 (en) 1998-05-15
    CZ11295A3 (en) 1995-08-16
    CN1109936A (en) 1995-10-11
    EP0665332A1 (en) 1995-08-02
    CZ280997B6 (en) 1996-05-15
    CA2141511A1 (en) 1995-08-02
    DE59405715D1 (en) 1998-05-20
    RU95101063A (en) 1996-11-27
    US5575709A (en) 1996-11-19
    RU2083753C1 (en) 1997-07-10
    CN1097662C (en) 2003-01-01
    CA2141511C (en) 2005-04-26
    SK8395A3 (en) 1995-08-09

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