EP0478531B1 - Device for placing on rails a tool-carrying frame - Google Patents

Device for placing on rails a tool-carrying frame Download PDF

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Publication number
EP0478531B1
EP0478531B1 EP91890191A EP91890191A EP0478531B1 EP 0478531 B1 EP0478531 B1 EP 0478531B1 EP 91890191 A EP91890191 A EP 91890191A EP 91890191 A EP91890191 A EP 91890191A EP 0478531 B1 EP0478531 B1 EP 0478531B1
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EP
European Patent Office
Prior art keywords
track
slide plate
machine
frame
tool frame
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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
EP91890191A
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German (de)
French (fr)
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EP0478531A1 (en
Inventor
Josef Ing. Theurer
Wilhelm Ing. Praschl
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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Franz Plasser Bahnbaumaschinen Industrie GmbH
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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
    • E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00

Definitions

  • the invention relates to a device for ironing a tool frame onto the rails of a track, with a sensing element scanning a rail, the flanged wheels having tool frames articulated by drives on the machine frame of a track-moving track construction machine and lockable in an inoperative position (cf. DE-A-2927729 and Preamble of claim 1).
  • a device for ironing or centering a tool frame of a track construction machine which is articulated on a machine frame by height adjustment drives.
  • the tool frame is automatically centered in relation to the center of the machine in its raised, inoperative position.
  • the single track device which is also articulated on the machine frame independently of the tool frame, essentially consists of a pair of levers which act as a sensing element and which are fastened to their own frame articulated on the machine frame in such a way that the levers can be pivoted in a vertical plane running in the transverse direction of the track.
  • the pivot axes of the levers or sensing elements are spaced horizontally from one another approximately in the track gauge of the track.
  • the levers are also coupled to one another via a synchronization rod in such a way that the movement of one lever by means of a swivel drive causes a movement of the other lever which is a mirror image thereof.
  • the free lower ends of the levers are designed as button stops for contact with the inside of the rail head.
  • the sensing elements are pivoted too high towards the center of the machine.
  • the swivel drive is acted upon and there is a synchronous spreading movement of the feelers towards the inside of the rail heads. Is If the single track device is not exactly centered over the middle of the track - for example because the machine is on a track curve - then it is inevitable that one of the probes first touches the assigned rail head.
  • the frame of the single track device is shifted in the direction of the center of the track until the other sensing element also bears against the rail head assigned to it and the device is thus centered precisely in relation to the center of the track.
  • the frame of the single track device then serves to steer the tool frame into the correct track-centered position while it is being lowered onto the track.
  • finger-like directional supports are attached to the tool frame, which are deflected by guide ramps arranged on the frame of the single track device until the flanged wheels of the tool frame engage the rails and the tool frame is thus slid in.
  • the structure of this single track device is relatively complicated and, when used in track ramp areas with uneven track heights, it can tend to malfunction.
  • the object of the invention is therefore to provide a single track device of the generic type, by means of which a trouble-free and reliable single track of the tool frame is ensured.
  • the feeler connected to the tool frame is arranged at least during the single track operation in the radial plane of at least one flanged wheel and is connected to a hydraulic control for interrupting the application of a transverse displacement drive articulated between the machine and tool frame and / or to deliver a acoustic or optical signal is trained.
  • a single-track device which is particularly simple in design, has the great advantage that the single-track operation can be carried out in a simple manner only with the aid of a transverse displacement drive due to the connection of the tool frame and feeler element.
  • the tool frame is thus moved until the correct position of the flanged wheels above the rails is finally displayed by a reaction of the sensing element and the operator stops the transverse movement or this is automatically interrupted by the sensing element. Subsequently, the tool frame only needs to be lowered onto the track. Since in most cases the cross-slide drive is already present for the work of the tool frame, only the arrangement of a feeler is required for the simplest embodiment of the single-track device according to the invention.
  • the development of the invention according to claim 2 has the advantage that an automatic alignment of the flanged wheel axis parallel to the track plane can be achieved already after the first part of the single track process by lowering the tool frame due to the slide bar resting on the track, in particular also in track sections with a transverse inclination.
  • As a second part of the single track process only an action on the transverse adjustment drive and thus a displacement of the slide rail in the transverse direction of the track is required, the exact position of the rails being able to be determined quickly and easily with the response of the sensing element.
  • the aforementioned first stage of the single track process as a result of the slide bar resting on both rails has the particular advantage that, prior to the final lowering of the flanged wheels, they are always spaced at the same height from the rail.
  • the configuration according to claim 3 ensures that the sensing element forming part of the slide bar responds reliably in the region of a rail head, so that a precise centering of the flanged wheels above the rail head can be achieved for trouble-free insertion of the tool frame.
  • the arrangement cited in claim 5 advantageously ensures a limitation of the transverse sliding movement of the slide bar, the tool frame being fixed precisely and immovably in the desired position by latching the rail head on the vertical stop - in cooperation with the blocking of the transverse sliding drives triggered by the sensing element.
  • the design of the device according to claim 9 has the advantage that the slide bar is firmly connected to the tool frame while avoiding a structurally somewhat more complex pivotable linkage, the flanged wheels being located above the bearing surface during the scanning process of the slide bar.
  • a mobile track construction machine 1 shown in FIG. 1 has a bridge-shaped machine frame 4 which is mounted on a track 3 at the end via rail carriages 2.
  • Two height and side adjustable tamping units 5, a lifting and straightening unit 6 having lifting and straightening drives and a leveling and straightening reference system 7 controlling these units are arranged on this for carrying out the track construction work.
  • An energy center 8 serves to supply all the drives arranged on the track-laying machine 1.
  • a measuring trolley 9 that can be rolled off the track is provided, which is connected to the machine frame 4 between the rail carriages 2, which are spaced far apart from one another, by means of drives that can be adjusted in height and crosswise, and is equipped with a single track device 10 for centering during the single track process.
  • a central control device 46 is arranged in a work cabin.
  • the single track device 10 shown in FIGS. 2 and 3 consists of two - in their lower scanning position - each above a rail and parts arranged in mirror image to one another, of which for the sake of simplicity only the part located above the left rail is shown.
  • This part of the single track device 10 has a support frame 11 which is fixedly connected to a tool frame 12 of the measuring carriage 9.
  • the tool frame 12 is in turn articulated or adjustable to the machine frame 4 of the track-laying machine 1 by means of height adjustment drives 13 and transverse adjustment drives 14 and is further provided with flange wheels 15 which are provided for resting on rails 16 of the track 3.
  • a swivel frame 17 extending transversely to the longitudinal direction of the machine is articulated on the support frame 11 via a parallelogram linkage formed by two levers 18 and is adjustable to this by means of a swivel drive 19 likewise arranged on the support frame 11 and designed as a spring-loaded cylinder, in a swivel plane which extends perpendicular to the track plane and in the cross-machine direction (see the swiveled-up position indicated by dash-dotted lines on the left side of FIG. 2). In its lower end position or scanning position for carrying out the single-track operation, the swivel frame 17 bears firmly against a vertical stop 20 of the support frame 11 to limit its swivel movement.
  • the lower end region of the swivel frame 17, which runs essentially parallel to the track plane or to the axis 50 of the flanged wheel 15, is designed as a slide bar 21 which consists of two bar sections 22 which are offset in height from one another, the lower bar section 22 having a vertical stop 23 for contact with the Has side surface of a rail head 24 of the rail 16.
  • the length of the strip sections 22 results from the arrow height of the circular arc described by the track with a minimal arc radius as a function of the length of the circular chord formed by the spaced-apart rail carriages 2.
  • the slide bar 21 For resting on the rail head 24 is the slide bar 21 with a bearing surface 25 provided from electrical insulation material 26.
  • a sensing element 27 is arranged in the middle with respect to the two strip sections 22 extending transversely to the machine longitudinal direction, which is designed as a rocker arm 28 likewise coated with electrical insulation material 26, which actuates a limit switch 29 in its upper end position.
  • the latter is connected via a line 30 to a hydraulic control 51 for controlling the application of the transverse adjustment drive 14.
  • the hydraulic control 51 is composed of a 4/3-way valve 52 with a zero circulation position and two flow positions and a 4/2-way valve 53 with a zero rotation position and a flow position.
  • the limit switch 29 is also connected to an optical and / or acoustic signal device 54.
  • the measuring carriage 9 Before the single track process, the measuring carriage 9 is in its inoperative position which is raised or raised from the track 3.
  • the swivel frame 17 When the respective swivel drives 19 are acted upon, the swivel frame 17 is first pivoted into its lower end or scanning position until it abuts the stop 20. In this position, the feeler element 27 arranged on the slide bar 21 is located below the flanged wheel 15 in its radial plane 55 running perpendicular to the axis 50.
  • the tool frame 12 is then lowered by means of the height adjustment drives 13 until the slide bar 21 rests on the rail head 24.
  • the transverse adjustment drives 14 When the transverse adjustment drives 14 are now acted upon, the tool frame 12 and thus the associated single-track device 10 or the slide bar 21 in the transverse direction of the machine are moved or scanned.
  • the flanged wheel 15 is in the desired position above the rail 16 or the radial plane 55 mentioned is approximately identical to the rail symmetry plane.
  • the rocker arm 28 is operated simultaneously and pressed with its free end against the limit switch 29.
  • the pulse triggered in this way causes an electromagnetic displacement of the valve 53 into the zero position, as a result of which the transverse adjustment drive 14 is blocked and the scanning movement is ended.
  • the operator is shown the correct position of the flanged wheels 15 above the rails by an optical and / or acoustic signal.
  • the height adjustment drives 13 can be used to finally lower the tool frame 12 or measuring carriage 9 into the working position until the flanged wheels 15 rest on the rails 16.
  • the valve 53 is displaced into the flow position under the action of a return spring, so that the transverse adjustment drive 14 can be used unhindered for the lateral spreading of the measuring carriage 9 on one of the two rails in the course of the work of the machine 1.
  • a track construction machine 31 has a machine frame 32, to which - via height adjustment drives 33 and a transverse adjustment drive 34 - a tool frame 35 is articulated in a height-adjustable and transverse manner.
  • This is equipped with working tools (not shown here in more detail), for example lifting rollers for lifting and straightening the track, and is connected to a slide bar 36 which extends in the form of a bar 37 over both rails 38 of a track 39.
  • sensing elements 40 are arranged at a distance from one another in the track width.
  • the two end sections 41 of the bar 37 are (as indicated by the left arrow) with respect to the middle part of the height lying between the sensing elements 40 arranged offset and thereby form step-shaped stops 42, which are provided for contact with a rail head 43.
  • the length of these end sections 41 corresponds to the largest required lateral deflection of the tool frame 35 from the center of the machine in track arches (depending on the distance between the trolleys of the track-building machine 31).
  • the tool frame 35 is equipped with flange wheels 44, which are each mounted on the tool frame 35 so as to be vertically displaceable in corresponding vertical guides by means of their own adjustment drive 45. In its upper end position, the flanged wheels 44 are located above the feeler elements 40 arranged on the slide bar 36 and also above the bearing surface of the slide bar 36.
  • the single track or centering process begins with the lowering of the tool frame 35 using the height adjustment drives 33 until the slide bar 36 rests on both rail heads 43 (see the position shown in FIG. 4).
  • the transverse adjustment drive 34 there is then a displacement of the tool frame 35 in the transverse direction of the machine, which is terminated when the rail heads 43 engage on the stops 42 and / or the associated actuation of the pushbuttons 40 by a switch-off signal emanating from them to the transverse adjustment drive 34.
  • the flanged wheels 44 are now centered exactly above the rails 38 and are lowered by acting on the adjustment drives 45 until they engage the rail heads 43.
  • a sensing element 56 shown in FIG. 5 is attached as an inductive proximity switch for contactless scanning of the rail 16 on the support frame 11 in the center with respect to the radial plane 55 of the flange wheel 15.
  • the single track process is initiated by swiveling the swivel frame 17 down into the scanning position. After lowering the single track device 10 together with the associated tool frame and support of the slide bar 21 on both rails 16 of the track, there is a transverse displacement of the entire unit until the pushbutton 56 in its position exactly above the rail 16 blocks the transverse adjustment drive and / or triggers an acoustic or optical signal.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Patch Boards (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Body Structure For Vehicles (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Paper (AREA)
  • Forging (AREA)

Abstract

Device for placing a tool-carrying frame (12) on the rails (16) of a track (3), with a scanning member (27) which scans a rail, in which arrangement the tool-carrying frame (12) having flanged wheels (15) is linked by drives (13, 14) to the machine frame (4) of a track-laying machine movable on tracks and can be locked in an inoperative position. The scanning member (27) is arranged in the radial plane (55) of at least one flanged wheel (15) at least during the operation for placing the tool-carrying frame (12) on the rails (16) and is connected to a hydraulic control system (51) for interrupting the loading of the transverse-displacement drive (14) and/or is designed for the transmission of an acoustic or optical signal. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Eingleisen eines Werkzeugrahmens auf die Schienen eines Gleises, mit einem eine Schiene abtastenden Tastorgan, wobei der Spurkranzräder aufweisende Werkzeugrahmen durch Antriebe am Maschinenrahmen einer gleisverfahrbaren Gleisbaumaschine angelenkt sowie in einer Außerbetriebstellung arretierbar ist (vgl. DE-A-2927729 und Oberbegriff des Anspruchs 1).The invention relates to a device for ironing a tool frame onto the rails of a track, with a sensing element scanning a rail, the flanged wheels having tool frames articulated by drives on the machine frame of a track-moving track construction machine and lockable in an inoperative position (cf. DE-A-2927729 and Preamble of claim 1).

Es ist bereits - gemäß DE-A-29 27 729 - eine Vorrichtung zum Eingleisen bzw. Zentrieren eines Werkzeugrahmens einer Gleisbaumaschine bekannt, welcher an einem Maschinenrahmen durch Höhenverstellantriebe verstellbar angelenkt ist. Mittels einer Führung wird der Werkzeugrahmen in seiner hochgehobenen Außerbetriebstellung selbsttätig zentrisch in bezug auf die Maschinenmitte ausgerichtet. Die unabhängig vom Werkzeugrahmen ebenfalls am Maschinenrahmen angelenkte Eingleisvorrichtung besteht im wesentlichen aus einem als Tastorgan wirksamen Hebelpaar, das an einem eigenen, am Maschinenrahmen angelenkten Rahmen so befestigt ist, daß die Hebel in einer in Gleisquerrichtung verlaufenden vertikalen Ebene verschwenkbar sind. Die Schwenkachsen der Hebel bzw. Tastorgane sind dabei etwa in Spurweite des Gleises horizontal voneinander distanziert. Die Hebel sind weiters über eine Synchronisationsstange derart miteinander gekoppelt, daß die Bewegung des einen Hebels mittels eines Schwenkantriebes eine dazu spiegelbildliche Bewegung des anderen Hebels bewirkt. Die freien unteren Enden der Hebel sind als Tasteranschläge zur Anlage an die Schienenkopfinnenseiten ausgebildet. In Ruhestellung der Vorrichtung sind die Tastorgane gegen die Maschinenmitte zu hochgeschwenkt. Im Einsatz wird der Schwenkantrieb beaufschlagt und es erfolgt eine synchrone Spreizbewegung der Tastorgane in Richtung zu den Innenseiten der Schienenköpfe. Ist die Eingleisvorrichtung nicht genau über der Gleismitte zentriert - z.B. weil sich die Maschine in einem Gleisbogen befindet - dann kommt es zwangsläufig zur Anlage zuerst des einen Tastorganes am zugeordneten Schienenkopf. Bei fortschreitender Spreizung der Hebel wird der Rahmen der Eingleisvorrichtung in Richtung zur Gleismitte verschoben, bis auch das andere Tastorgan am ihm zugeordneten Schienenkopf anliegt und die Vorrichtung somit genau in bezug auf die Gleismitte zentriert ist. In dieser Stellung dient der Rahmen der Eingleisvorrichtung dann dazu, den Werkzeugrahmen während seiner Absenkung auf das Gleis in die korrekte gleismittige Position zu lenken. Dazu sind am Werkzeugrahmen fingerartige Richtungsstützen befestigt, die durch am Rahmen der Eingleisvorrichtung angeordnete Führungsrampen abgelenkt werden, bis die Spurkranzräder des Werkzeugrahmens mit den Schienen in Eingriff stehen und der Werkzeugrahmen somit eingegleist ist. Diese Eingleisvorrichtung ist im Aufbau relativ kompliziert und kann bei Einsatz in Gleisrampenbereichen mit ungleicher Schienenhöhe unter Umständen zu Störungen neigen.According to DE-A-29 27 729, a device for ironing or centering a tool frame of a track construction machine is already known, which is articulated on a machine frame by height adjustment drives. The tool frame is automatically centered in relation to the center of the machine in its raised, inoperative position. The single track device, which is also articulated on the machine frame independently of the tool frame, essentially consists of a pair of levers which act as a sensing element and which are fastened to their own frame articulated on the machine frame in such a way that the levers can be pivoted in a vertical plane running in the transverse direction of the track. The pivot axes of the levers or sensing elements are spaced horizontally from one another approximately in the track gauge of the track. The levers are also coupled to one another via a synchronization rod in such a way that the movement of one lever by means of a swivel drive causes a movement of the other lever which is a mirror image thereof. The free lower ends of the levers are designed as button stops for contact with the inside of the rail head. In the rest position of the device, the sensing elements are pivoted too high towards the center of the machine. In use, the swivel drive is acted upon and there is a synchronous spreading movement of the feelers towards the inside of the rail heads. Is If the single track device is not exactly centered over the middle of the track - for example because the machine is on a track curve - then it is inevitable that one of the probes first touches the assigned rail head. As the levers spread, the frame of the single track device is shifted in the direction of the center of the track until the other sensing element also bears against the rail head assigned to it and the device is thus centered precisely in relation to the center of the track. In this position, the frame of the single track device then serves to steer the tool frame into the correct track-centered position while it is being lowered onto the track. For this purpose, finger-like directional supports are attached to the tool frame, which are deflected by guide ramps arranged on the frame of the single track device until the flanged wheels of the tool frame engage the rails and the tool frame is thus slid in. The structure of this single track device is relatively complicated and, when used in track ramp areas with uneven track heights, it can tend to malfunction.

Die Aufgabe der Erfindung besteht demnach in der Schaffung einer Eingleisvorrichtung der gattungsgemäßen Art, mittels derer eine problemlose und zuverlässige Eingleisung des Werkzeugrahmens gesichert ist.The object of the invention is therefore to provide a single track device of the generic type, by means of which a trouble-free and reliable single track of the tool frame is ensured.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das mit dem Werkzeugrahmen verbundene Tastorgan zumindest beim Eingleisvorgang in der Radialebene wenigstens eines Spurkranzrades angeordnet und mit einer Hydrauliksteuerung zur Unterbrechung der Beaufschlagung eines zwischen Maschinen- und Werkzeugrahmen angelenkten Querverschiebeantriebes in Verbindung steht und bzw. oder zur Abgabe eines akustischen bzw. optischen Signals ausgebildet ist. Eine derartige, konstruktiv besonders einfach ausgebildete Eingleisvorrichtung hat den großen Vorteil, daß durch die Verbindung von Werkzeugrahmen und Tastorgan der Eingleisvorgang auf einfache Weise lediglich mit Hilfe eines Querverschiebeantriebes durchführbar ist. Damit wird der Werkzeugrahmen so lange querverschoben, bis durch eine Reaktion des Tastorganes schließlich die korrekte Lage der Spurkranzräder oberhalb der Schienen angezeigt wird und die Bedienungsperson die Querverschiebung stoppt bzw. diese automatisch durch das Tastorgan unterbrochen wird. Anschließend ist lediglich eine Absenkung des Werkzeugrahmens auf das Gleis erforderlich. Da in den meisten Fällen der Querverschiebeantrieb ohnehin für den Arbeitseinsatz des Werkzeugrahmens bereits vorhanden ist, ist für die einfachste Ausführung der erfindungsgemäßen Eingleisvorrichtung lediglich die Anordnung eines Tastorganes erforderlich.This object is achieved in that the feeler connected to the tool frame is arranged at least during the single track operation in the radial plane of at least one flanged wheel and is connected to a hydraulic control for interrupting the application of a transverse displacement drive articulated between the machine and tool frame and / or to deliver a acoustic or optical signal is trained. Such a single-track device, which is particularly simple in design, has the great advantage that the single-track operation can be carried out in a simple manner only with the aid of a transverse displacement drive due to the connection of the tool frame and feeler element. The tool frame is thus moved until the correct position of the flanged wheels above the rails is finally displayed by a reaction of the sensing element and the operator stops the transverse movement or this is automatically interrupted by the sensing element. Subsequently, the tool frame only needs to be lowered onto the track. Since in most cases the cross-slide drive is already present for the work of the tool frame, only the arrangement of a feeler is required for the simplest embodiment of the single-track device according to the invention.

Die Weiterbildung der Erfindung gemäß Anspruch 2 hat den Vorteil, daß bereits nach dem ersten Teil des Eingleisvorganges durch Absenkung des Werkzeugrahmens auf Grund der am Gleis aufliegenden Gleitleiste, insbesondere auch in Gleisabschnitten mit Querneigung, eine automatische Ausrichtung der Spurkranzradachse parallel zur Gleisebene erzielbar ist. Als zweiter Teil des Eingleisvorganges ist lediglich eine Beaufschlagung des Querverstellantriebes und somit eine Verschiebung der Gleitleiste in Gleisquerrichtung erforderlich, wobei mit dem Ansprechen des Tastorganes rasch und einfach die genaue Lage der Schienen eruierbar ist. Durch die erwähnte erste Stufe des Eingleisvorganges als Folge der Auflage der Gleitleiste auf beide Schienen wird der besondere Vorteil erreicht, daß vor dem abschließenden Absenken der Spurkranzräder diese immer im gleichen Höhenabstand zur Schiene distanziert sind.The development of the invention according to claim 2 has the advantage that an automatic alignment of the flanged wheel axis parallel to the track plane can be achieved already after the first part of the single track process by lowering the tool frame due to the slide bar resting on the track, in particular also in track sections with a transverse inclination. As a second part of the single track process, only an action on the transverse adjustment drive and thus a displacement of the slide rail in the transverse direction of the track is required, the exact position of the rails being able to be determined quickly and easily with the response of the sensing element. The aforementioned first stage of the single track process as a result of the slide bar resting on both rails has the particular advantage that, prior to the final lowering of the flanged wheels, they are always spaced at the same height from the rail.

Daraus resultiert ein besonders zuverlässiger, störungsfreier und auch rasch durchführbarer Eingleisvorgang.This results in a particularly reliable, trouble-free and also quickly executable single-track operation.

Durch die Ausgestaltung gemäß Anspruch 3 ist sichergestellt, daß das einen Teil der Gleitleiste bildende Tastorgan zuverlässig im Bereich eines Schienenkopfes anspricht, so daß eine genaue Zentrierung der Spurkranzräder oberhalb des Schienenkopfes für eine störungsfreie Eingleisung des Werkzeugrahmens erzielbar ist.The configuration according to claim 3 ensures that the sensing element forming part of the slide bar responds reliably in the region of a rail head, so that a precise centering of the flanged wheels above the rail head can be achieved for trouble-free insertion of the tool frame.

Mit einer weiteren, in Anspruch 4 beschriebenen vorteilhaften Ausführung der Erfindung wird erreicht, daß die Gleitleiste auch beim Einsatz in Gleisbögen mit sehr kleinem Bogenradius bei der anfänglichen Absenkung der Gleitleiste, bei der der Werkzeugrahmen noch nicht in bezug auf die Gleismitte zentriert ist, zuverlässig auf der Schiene aufliegt.With a further advantageous embodiment of the invention described in claim 4 it is achieved that the slide bar, even when used in bends with a very small radius of curvature, in the initial lowering of the slide bar, in which the tool frame is not yet centered with respect to the center of the track the rail rests.

Die in Anspruch 5 angeführte Anordnung sichert in vorteilhafter Weise eine Begrenzung der Querverschiebebewegung der Gleitleiste, wobei durch Einrasten des Schienenkopfes am vertikalen Anschlag - im Zusammenwirken mit der durch das Tastorgan ausgelösten Blockierung der Querverschiebeantriebe - der Werkzeugrahmen exakt und unverrückbar in der gewünschten Lage fixiert wird.The arrangement cited in claim 5 advantageously ensures a limitation of the transverse sliding movement of the slide bar, the tool frame being fixed precisely and immovably in the desired position by latching the rail head on the vertical stop - in cooperation with the blocking of the transverse sliding drives triggered by the sensing element.

Durch die Weiterbildung der Erfindung gemäß Anspruch 6 kann die Bildung eines Kurzschlusses zwischen den beiden Schienen und damit eine Beeinträchtigung der Signaleinrichtungen zuverlässig verhindert werden.By developing the invention according to claim 6, the formation of a short circuit between the two rails and thus an impairment of the signaling devices can be reliably prevented.

Durch die vorteilhafte Ausgestaltung der Erfindung gemäß Anspruch 7 ist unmittelbar vor dem Eingleisvorgang eine rasche Absenkung der Gleitleiste in die untere Abtastposition durchführbar. Nach erfolgter Eingleisung ist die Gleitleiste ebenso einfach wiederum in eine hochgehobene Ruhestellung hochschwenkbar, in der die Funktion des Werkzeugrahmens in keiner Weise beeinträchtigt ist.Due to the advantageous embodiment of the invention according to claim 7, a rapid lowering of the slide bar into the lower scanning position can be carried out immediately before the single track operation. After single entry, the slide bar is just as easy turn into one raised rest position in which the function of the tool frame is in no way impaired.

Mit den Merkmalen gemäß Anspruch 8 ist sichergestellt, daß die Gleitleiste in ihrer Abtaststellung unter Blokkierung des Schwenkantriebes in exakt jener Position fixiert wird, in der sich das im Bereich der Gleitleiste angeordnete Tastorgan genau unter dem zugeordneten Spurkranzrad des Werkzeugrahmens befindet.With the features according to claim 8 it is ensured that the slide bar is fixed in its scanning position by blocking the swivel drive in exactly the position in which the feeler element arranged in the area of the slide bar is located exactly under the associated flange wheel of the tool frame.

Die Ausgestaltung der Vorrichtung nach Anspruch 9 hat den Vorteil, daß die Gleitleiste unter Vermeidung einer konstruktiv etwas aufwendigeren schwenkbaren Anlenkung fest mit dem Werkzeugrahmen verbunden ist, wobei sich die Spurkranzräder während des Abtastvorganges der Gleitleiste über deren Auflagerfläche befinden.The design of the device according to claim 9 has the advantage that the slide bar is firmly connected to the tool frame while avoiding a structurally somewhat more complex pivotable linkage, the flanged wheels being located above the bearing surface during the scanning process of the slide bar.

Eine in Anspruch 10 beschriebene vorteilhafte Variante der Erfindung bietet die Möglichkeit einer zusätzlichen konstruktiven Vereinfachung unter Beibehaltung des Großteiles der bisher beschriebenen Vorteile der Erfindung.An advantageous variant of the invention described in claim 10 offers the possibility of an additional structural simplification while retaining the majority of the advantages of the invention described so far.

Mit einer in Anspruch 11 angeführten Anordnung von einander wirkungsmäßig unterstützenden Anschlägen und Tastorganen wird die Zuverlässigkeit der Eingleisvorrichtung erhöht und deren störungsfreier und insbesondere auch rascher Einsatz gesichert.With an arrangement of stops and sensing elements that support one another in an effective manner, the reliability of the single-track device is increased and its trouble-free and, in particular, rapid use is ensured.

Nachstehend wird die Erfindung anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben.The invention is described in more detail below on the basis of exemplary embodiments illustrated in the drawings.

Es zeigen:

  • Fig. 1 eine Seitenansicht einer mit der erfindungsgemäßen Eingleisvorrichtung ausgestatteten Gleisbaumaschine,
  • Fig. 2 eine vergrößerte Detailansicht der Vorrichtung gemäß Pfeil II in Fig. 1,
  • Fig. 3 einen Querschnitt durch die Eingleisvorrichtung gemäß der Schnittlinie III-III in Fig. 2,
  • Fig. 4 eine vereinfachte Ansicht einer weiteren vorteilhaften Ausführungsform der Erfindung in Maschinenlängsrichtung und
  • Fig. 5 ein weiteres Ausführungsbeispiel einer Eingleisvorrichtung mit einem die Schiene berührungslos abtastenden Tastorgan.
Show it:
  • 1 is a side view of a track construction machine equipped with the single track device according to the invention,
  • 2 is an enlarged detail view of the device according to arrow II in Fig. 1,
  • 3 shows a cross section through the single-track device according to section line III-III in FIG. 2,
  • Fig. 4 is a simplified view of a further advantageous embodiment of the invention in the machine longitudinal direction and
  • Fig. 5 shows a further embodiment of a single track device with a touch element scanning the rail without contact.

Eine in Fig. 1 ersichtliche fahrbare Gleisbaumaschine 1 weist einen endseitig über Schienenfahrwerke 2 auf einem Gleis 3 gelagerten, brückenförmigen Maschinenrahmen 4 auf. An diesem sind zur Durchführung der Gleisbauarbeiten zwei höhen- und seitenverstellbare Stopfaggregate 5, ein Hebe- und Richtantriebe aufweisendes Gleishebe- und Richtaggregat 6 sowie ein diese Aggregate steuerndes Nivellier- und Richtbezugsystem 7 angeordnet. Eine Energiezentrale 8 dient zur Versorgung sämtlicher auf der Gleisbaumaschine 1 angeordneter Antriebe. Zum Ermitteln der Ist-Lage des Gleises 3 ist ein auf dem Gleis abrollbarer Meßwagen 9 vorgesehen, welcher zwischen den weit voneinander distanzierten Schienenfahrwerken 2 über Antriebe höhen- und querverstellbar mit dem Maschinenrahmen 4 verbunden und zwecks Zentrierung beim Eingleisvorgang mit einer Eingleisvorrichtung 10 ausgestattet ist. Zur Steuerung sämtlicher Antriebe ist eine zentrale Steuereinrichtung 46 in einer Arbeitskabine angeordnet.A mobile track construction machine 1 shown in FIG. 1 has a bridge-shaped machine frame 4 which is mounted on a track 3 at the end via rail carriages 2. Two height and side adjustable tamping units 5, a lifting and straightening unit 6 having lifting and straightening drives and a leveling and straightening reference system 7 controlling these units are arranged on this for carrying out the track construction work. An energy center 8 serves to supply all the drives arranged on the track-laying machine 1. In order to determine the actual position of the track 3, a measuring trolley 9 that can be rolled off the track is provided, which is connected to the machine frame 4 between the rail carriages 2, which are spaced far apart from one another, by means of drives that can be adjusted in height and crosswise, and is equipped with a single track device 10 for centering during the single track process. To control all drives, a central control device 46 is arranged in a work cabin.

Die in Fig. 2 und 3 ersichtliche Eingleisvorrichtung 10 besteht aus zwei - in ihrer unteren Abtaststellung - jeweils über einer Schiene und spiegelbildlich zueinander angeordneten Teilen, von denen der Einfachheit halber lediglich der über der linken Schiene befindliche Teil dargestellt ist. Dieser Teil der Eingleisvorrichtung 10 weist einen Tragrahmen 11 auf, der fest mit einem Werkzeugrahmen 12 des Meßwagens 9 verbunden ist. Der Werkzeugrahmen 12 ist seinerseits mittels Höhenverstellantrieben 13 und Querverstellantrieben 14 am Maschinenrahmen 4 der Gleisbaumaschine 1 angelenkt bzw. zu diesem verstellbar und ist weiters mit Spurkranzrädern 15 versehen, die zur Auflage auf Schienen 16 des Gleises 3 vorgesehen sind. Ein quer zur Maschinenlängsrichtung verlaufender Schwenkrahmen 17 ist über eine aus zwei Hebeln 18 gebildete Parallelogrammanlenkung am Tragrahmen 11 angelenkt und zu diesem mittels eines ebenfalls am Tragrahmen 11 angeordneten und als Federspeicherzylinder ausgebildeten Schwenkantriebes 19 in einer Schwenkebene verstellbar, welche senkrecht auf die Gleisebene und in Maschinenquerrichtung verläuft (siehe die in strichpunktierten Linien angedeutete hochgeschwenkte Stellung auf der linken Seite der Fig.2). In seiner unteren Endstellung bzw. Abtastposition zur Durchführung des Eingleisvorganges liegt der Schwenkrahmen 17 zur Begrenzung seiner Schwenkbewegung fest an einem vertikalen Anschlag 20 des Tragrahmens 11 an.The single track device 10 shown in FIGS. 2 and 3 consists of two - in their lower scanning position - each above a rail and parts arranged in mirror image to one another, of which for the sake of simplicity only the part located above the left rail is shown. This part of the single track device 10 has a support frame 11 which is fixedly connected to a tool frame 12 of the measuring carriage 9. The tool frame 12 is in turn articulated or adjustable to the machine frame 4 of the track-laying machine 1 by means of height adjustment drives 13 and transverse adjustment drives 14 and is further provided with flange wheels 15 which are provided for resting on rails 16 of the track 3. A swivel frame 17 extending transversely to the longitudinal direction of the machine is articulated on the support frame 11 via a parallelogram linkage formed by two levers 18 and is adjustable to this by means of a swivel drive 19 likewise arranged on the support frame 11 and designed as a spring-loaded cylinder, in a swivel plane which extends perpendicular to the track plane and in the cross-machine direction (see the swiveled-up position indicated by dash-dotted lines on the left side of FIG. 2). In its lower end position or scanning position for carrying out the single-track operation, the swivel frame 17 bears firmly against a vertical stop 20 of the support frame 11 to limit its swivel movement.

Der untere, im wesentlichen parallel zur Gleisebene bzw. zur Achse 50 des Spurkranzrades 15 verlaufende Endbereich des Schwenkrahmens 17 ist als Gleitleiste 21 ausgebildet, die aus zwei zueinander höhenversetzt angeordneten Leistenabschnitten 22 besteht, wobei der tieferliegende Leistenabschnitt 22 einen vertikalen Anschlag 23 zur Anlage an die Seitenfläche eines Schienenkopfes 24 der Schiene 16 aufweist. Die Länge der Leistenabschnitte 22 resultiert aus der Pfeilhöhe des durch das Gleis bei minimalem Bogenradius beschriebenen Kreisbogens in Abhängigkeit von der Länge der durch die voneinander distanzierten Schienenfahrwerke 2 gebildeten Kreissehne. Zur Auflage am Schienenkopf 24 ist die Gleitleiste 21 mit einer Auflagerfläche 25 aus elektrischem Isolationsmaterial 26 versehen. Mittig in bezug auf die beiden quer zur Maschinenlängsrichtung verlaufenden Leistenabschnitte 22 ist ein Tastorgan 27 angeordnet, welches als ebenfalls mit elektrischem Isolationsmaterial 26 beschichteter Kipphebel 28 ausgebildet ist, der in seiner oberen Endstellung einen Endschalter 29 betätigt. Letzterer ist über eine Leitung 30 mit einer Hydrauliksteuerung 51 zum Steuern der Beaufschlagung des Querverstellantriebes 14 verbunden. Die Hydrauliksteuerung 51 setzt sich aus einem 4/3-Wegeventil 52 mit einer Umlauf-Nullstellung und zwei Durchflußstellungen sowie einem 4/2-Wegeventil 53 mit einer Umlauf-Nullstellung und einer Durchflußstellung zusammen. Der Endschalter 29 steht außerdem mit einer optischen und/oder akustischen Signaleinrichtung 54 in Verbindung.The lower end region of the swivel frame 17, which runs essentially parallel to the track plane or to the axis 50 of the flanged wheel 15, is designed as a slide bar 21 which consists of two bar sections 22 which are offset in height from one another, the lower bar section 22 having a vertical stop 23 for contact with the Has side surface of a rail head 24 of the rail 16. The length of the strip sections 22 results from the arrow height of the circular arc described by the track with a minimal arc radius as a function of the length of the circular chord formed by the spaced-apart rail carriages 2. For resting on the rail head 24 is the slide bar 21 with a bearing surface 25 provided from electrical insulation material 26. A sensing element 27 is arranged in the middle with respect to the two strip sections 22 extending transversely to the machine longitudinal direction, which is designed as a rocker arm 28 likewise coated with electrical insulation material 26, which actuates a limit switch 29 in its upper end position. The latter is connected via a line 30 to a hydraulic control 51 for controlling the application of the transverse adjustment drive 14. The hydraulic control 51 is composed of a 4/3-way valve 52 with a zero circulation position and two flow positions and a 4/2-way valve 53 with a zero rotation position and a flow position. The limit switch 29 is also connected to an optical and / or acoustic signal device 54.

Vor dem Eingleisvorgang befindet sich der Meßwagen 9 in seiner vom Gleis 3 ab- bzw. hochgehobenen Außerbetriebstellung. Unter Beaufschlagung der jeweiligen Schwenkantriebe 19 wird zunächst der Schwenkrahmen 17 in seine untere End- bzw. Abtaststellung verschwenkt, bis er am Anschlag 20 anliegt. In dieser Stellung befindet sich das an der Gleitleiste 21 angeordnete Tastorgan 27 unterhalb des Spurkranzrades 15 in dessen senkrecht zur Achse 50 verlaufenden Radialebene 55. Sodann wird der Werkzeugrahmen 12 mittels der Höhenverstellantriebe 13 abgesenkt, bis die Gleitleiste 21 auf dem Schienenkopf 24 aufliegt. Bei nun folgender Beaufschlagung der Querverstellantriebe 14 kommt es zur Querverschiebung bzw. Abtastbewegung des Werkzeugrahmens 12 und somit auch der damit verbundenen Eingleisvorrichtung 10 bzw. der Gleitleiste 21 in Maschinenquerrichtung. Sobald der Schienenkopf 24 zur Anlage am Anschlag 23 gelangt, befindet sich das Spurkranzrad 15 in der gewünschten Position über der Schiene 16 bzw. ist die erwähnte Radialebene 55 in etwa identisch mit der Schienensymmetrieebene. Durch den Schienenkopf 24 wird gleichzeitig der Kipphebel 28 betätigt und mit seinem freien Ende gegen den Endschalter 29 gedrückt. Der solcherart ausgelöste Impuls bewirkt eine elektromagnetische Verschiebung des Ventils 53 in die Nullstellung, wodurch der Querverstellantrieb 14 blockiert und die Abtastbewegung beendet ist. Gleichzeitig wird der Bedienungsperson durch ein optisches und/oder akustisches Signal die korrekte Lage der Spurkranzräder 15 über den Schienen angezeigt.Before the single track process, the measuring carriage 9 is in its inoperative position which is raised or raised from the track 3. When the respective swivel drives 19 are acted upon, the swivel frame 17 is first pivoted into its lower end or scanning position until it abuts the stop 20. In this position, the feeler element 27 arranged on the slide bar 21 is located below the flanged wheel 15 in its radial plane 55 running perpendicular to the axis 50. The tool frame 12 is then lowered by means of the height adjustment drives 13 until the slide bar 21 rests on the rail head 24. When the transverse adjustment drives 14 are now acted upon, the tool frame 12 and thus the associated single-track device 10 or the slide bar 21 in the transverse direction of the machine are moved or scanned. As soon as the rail head 24 comes to rest against the stop 23, the flanged wheel 15 is in the desired position above the rail 16 or the radial plane 55 mentioned is approximately identical to the rail symmetry plane. By the rail head 24, the rocker arm 28 is operated simultaneously and pressed with its free end against the limit switch 29. The pulse triggered in this way causes an electromagnetic displacement of the valve 53 into the zero position, as a result of which the transverse adjustment drive 14 is blocked and the scanning movement is ended. At the same time, the operator is shown the correct position of the flanged wheels 15 above the rails by an optical and / or acoustic signal.

Nachdem unter Beaufschlagung des Schwenkantriebes 19 der Schwenkrahmen 17 mitsamt der Gleitleiste 21 wieder in seine Außerbetriebstellung hochgebracht wurde, kann durch die Höhenverstellantriebe 13 das endgültige Absenken des Werkzeugrahmens 12 bzw. Meßwagens 9 in die Arbeitsstellung bis zur Auflage der Spurkranzräder 15 auf den Schienen 16 erfolgen. Das Ventil 53 wird unter der Wirkung einer Rückstellfeder in die Durchflußposition verschoben, so daß der Querverstellantrieb 14 im Rahmen des Arbeitseinsatzes der Maschine 1 ungehindert zum seitlichen Anspreizen des Meßwagens 9 an eine der beiden Schienen einsetzbar ist.After the swivel frame 17 together with the slide bar 21 has been brought back into its non-operating position while the swivel drive 19 is being acted upon, the height adjustment drives 13 can be used to finally lower the tool frame 12 or measuring carriage 9 into the working position until the flanged wheels 15 rest on the rails 16. The valve 53 is displaced into the flow position under the action of a return spring, so that the transverse adjustment drive 14 can be used unhindered for the lateral spreading of the measuring carriage 9 on one of the two rails in the course of the work of the machine 1.

In Fig. 4 ist eine weitere vorteilhafte Ausführungsform der Erfindung dargestellt. Eine Gleisbaumaschine 31 weist einen Maschinenrahmen 32 auf, an dem - über Höhenverstellantriebe 33 und einen Querverstellantrieb 34 - ein Werkzeugrahmen 35 höhen- und querverstellbar angelenkt ist. Dieser ist mit (hier nicht näher dargestellten) Arbeitswerkzeugen, beispielsweise Heberollen zum Heben und Richten des Gleises, ausgestattet sowie mit einer Gleitleiste 36 verbunden, die sich in der Form eines Balkens 37 über beide Schienen 38 eines Gleises 39 erstreckt. Am Balken 37 sind Tastorgane 40 in Spurweite voneinander distanziert angeordnet. Die beiden Endabschnitte 41 des Balkens 37 sind (wie durch den linken Pfeil angedeutet) in bezug auf den zwischen den Tastorganen 40 liegenden Mittelteil der Höhe nach versetzt angeordnet und bilden dadurch stufenförmige Anschläge 42, die zur Anlage an einen Schienenkopf 43 vorgesehen sind. Die Länge dieser Endabschnitte 41 entspricht der jeweils größten erforderlichen seitlichen Auslenkung des Werkzeugrahmens 35 aus der Maschinenmitte in Gleisbögen (in Abhängigkeit von der Distanz zwischen den Fahrwerken der Gleisbaumaschine 31). Des weiteren ist der Werkzeugrahmen 35 mit Spurkranzrädern 44 ausgestattet, welche jeweils durch einen eigenen Verstellantrieb 45 in entsprechenden vertikalen Führungen höhenverschiebbar am Werkzeugrahmen 35 gelagert sind. In ihrer oberen Endstellung befinden sich die Spurkranzräder 44 oberhalb der an der Gleitleiste 36 angeordneten Tastorgane 40 sowie auch oberhalb der Auflagerfläche der Gleitleiste 36.4 shows a further advantageous embodiment of the invention. A track construction machine 31 has a machine frame 32, to which - via height adjustment drives 33 and a transverse adjustment drive 34 - a tool frame 35 is articulated in a height-adjustable and transverse manner. This is equipped with working tools (not shown here in more detail), for example lifting rollers for lifting and straightening the track, and is connected to a slide bar 36 which extends in the form of a bar 37 over both rails 38 of a track 39. On the bar 37, sensing elements 40 are arranged at a distance from one another in the track width. The two end sections 41 of the bar 37 are (as indicated by the left arrow) with respect to the middle part of the height lying between the sensing elements 40 arranged offset and thereby form step-shaped stops 42, which are provided for contact with a rail head 43. The length of these end sections 41 corresponds to the largest required lateral deflection of the tool frame 35 from the center of the machine in track arches (depending on the distance between the trolleys of the track-building machine 31). Furthermore, the tool frame 35 is equipped with flange wheels 44, which are each mounted on the tool frame 35 so as to be vertically displaceable in corresponding vertical guides by means of their own adjustment drive 45. In its upper end position, the flanged wheels 44 are located above the feeler elements 40 arranged on the slide bar 36 and also above the bearing surface of the slide bar 36.

Der Eingleis- bzw. Zentriervorgang beginnt mit der Absenkung des Werkzeugrahmens 35 anhand der Höhenverstellantriebe 33, bis die Gleitleiste 36 auf beiden Schienenköpfen 43 aufliegt (siehe die in Fig.4 gezeigte Stellung). Mittels des Querverstellantriebes 34 erfolgt sodann eine Verschiebung des Werkzeugrahmens 35 in Maschinenquerrichtung, die bei Einrasten der Schienenköpfe 43 an den Anschlägen 42 und bzw. oder der damit zusammenhängenden Betätigung der Tastorgane 40 durch ein von diesen ausgehendes Abschaltsignal an den Querverstellantrieb 34 beendet wird. Die Spurkranzräder 44 befinden sich nun zentriert genau über den Schienen 38 und werden durch Beaufschlagung der Verstellantriebe 45 abgesenkt, bis sie mit den Schienenköpfen 43 in Eingriff stehen. Durch anschließende weitere Beaufschlagung der Verstellantriebe 45 und Drucklossteuerung der Höhenverstellantriebe 33 kommt es zu einem Hochdrücken des Werkzeugrahmens 35 und der daran angeordneten Gleitleiste 36 aus dem Gleis 39, wodurch die Gleitleiste 36 außer Eingriff mit dem Gleis gebracht wird. Der Werkzeugrahmen 35 ist nun frei auf dem Gleis 39 abrollbar. Es ist natürlich auch möglich, daß das Tastorgan der Eingleisvorrichtung lediglich ein akustisches und/oder optisches Signal bewirkt, das die Bedienungsperson veranlaßt, die in Maschinenquerrichtung verlaufende Abtastbewegung sofort zu beenden.The single track or centering process begins with the lowering of the tool frame 35 using the height adjustment drives 33 until the slide bar 36 rests on both rail heads 43 (see the position shown in FIG. 4). By means of the transverse adjustment drive 34 there is then a displacement of the tool frame 35 in the transverse direction of the machine, which is terminated when the rail heads 43 engage on the stops 42 and / or the associated actuation of the pushbuttons 40 by a switch-off signal emanating from them to the transverse adjustment drive 34. The flanged wheels 44 are now centered exactly above the rails 38 and are lowered by acting on the adjustment drives 45 until they engage the rail heads 43. Subsequent further actuation of the adjustment drives 45 and pressure-free control of the height adjustment drives 33 result in the tool frame 35 and the slide bar 36 arranged thereon being pushed up out of the track 39, as a result of which the slide bar 36 is disengaged from the track. The tool frame 35 can now be rolled freely on track 39. It is of course also possible that the feeler element of the single track device merely produces an acoustic and / or optical signal which causes the operator to immediately end the scanning movement running in the cross-machine direction.

Ein in Fig. 5 ersichtliches Tastorgan 56 ist als induktiver Näherungsschalter zur berührungslosen Abtastung der Schiene 16 am Tragrahmen 11 mittig in bezug auf die Radialebene 55 des Spurkranzrades 15 befestigt. Der Eingleisvorgang wird durch Herunterschwenken des Schwenkrahmens 17 in die Abtastposition eingeleitet. Nach Absenkung der Eingleisvorrichtung 10 mitsamt dem mit dieser verbundenen Werkzeugrahmen und Auflage der Gleitleiste 21 auf beiden Schienen 16 des Gleises erfolgt eine Querverschiebung der gesamten Einheit, bis das Tastorgan 56 in seiner genau über der Schiene 16 befindlichen Position die Blockierung des Querverstellantriebes und bzw. oder ein akustisches oder optisches Signal auslöst.A sensing element 56 shown in FIG. 5 is attached as an inductive proximity switch for contactless scanning of the rail 16 on the support frame 11 in the center with respect to the radial plane 55 of the flange wheel 15. The single track process is initiated by swiveling the swivel frame 17 down into the scanning position. After lowering the single track device 10 together with the associated tool frame and support of the slide bar 21 on both rails 16 of the track, there is a transverse displacement of the entire unit until the pushbutton 56 in its position exactly above the rail 16 blocks the transverse adjustment drive and / or triggers an acoustic or optical signal.

Claims (11)

  1. A device for mounting a tool frame on the rails of a track comprising a sensor for sensing a rail, the tool frame which comprises flanged wheels being pivotally connected by drives to the machine frame of a travelling on-track track-maintenance machine and being designed to be locked in an out-of-use position, characterized in that, at least during the mounting operation, the sensor (27; 40; 56) connected to the tool frame (12; 35) is arranged in the radial plane (55) of at least one flanged wheel (15; 44) and is connected to an hydraulic control unit (51 ) for interrupting the actuation of a transverse displacement drive (14; 34) pivotally connected between the machine frame and the tool frame (4, 12; 32, 35) and/or is destined to emit an acoustic or optical signal.
  2. A device according to Claim 1, characterized in that the sensor (27; 40; 56) is arranged in a slide plate (21; 36) which extends transversely of the longitudinal direction of the machine and which comprises a horizontal contact surface (25) destined for application to the rail head, the slide plate (21; 36) and the flanged wheels (15; 44) connected to the tool frame (12; 35) being designed for vertical displacement relative to one another by a drive (19; 45).
  3. A device according to Claim 1 or 2, characterized in that the sensor (27) is constructed in the form of a tilting lever (28) which forms part of the contact surface (25) of the slide plate (21) and of which the length substantially corresponds to the width of a rail head and is designed to pivot at one end about an axis extending in the longitudinal direction of the machine while a limit switch (29) is arranged at its opposite end on that side remote from the contact surface (25).
  4. A device according to Claim 1, 2 or 3, characterized in that each flanged wheel (15) has its own slide plate (21) with its own sensor (27) which is arranged substantially centrally in relation to the length of the slide plate (21) running in the transverse direction of the machine.
  5. A device according to Claim 4, characterized in that a plate section (22) of the slide plate (21) adjoining the sensor (27) is vertically offset relative to the other plate section (22) to form a vertical stop (23).
  6. A device according to one of claims 1 to 5, characterized in that the contact surface (25) of the slide plate (21) destined for application to the rail head (24) consists of an electrically insulating material (26).
  7. A device according to one of Claims 1 to 6, characterized in that the slide plate (21) is pivotally connected by a parallelogram linkage to a support frame (11) connected to the tool frame (12) and is designed to be pivoted by means of a pivoting drive (19) from a lower sensing position ― relative to the flanged wheels (15) ― into a higher out-of-use position and vice versa.
  8. A device according to Claim 7, characterized in that the support frame (11) is provided with a stop (20) to limit the pivoting movement of the slide plate (21) when its reaches the lower sensing position.
  9. A device according to one of Claims 1 to 8, characterized in that the flanged wheels (44) are mounted on the tool frame (35) for vertical displacement and are each designed for displacement by a drive (45) from an out-of-use position above the contact surface of the slide plate (36) into an in-use position below the contact surface.
  10. A device according to one of Claims 1 to 9, characterized in that the slide plate (36) is constructed in the form of a beam (37) extending over both rails of a track (39) with two sensors (40) spaced apart from each other by a distance corresponding to the gauge of the track, the two sections of the beam (37) situated at the ends with respect to the transverse direction of the machine and adjoining the respective sensor (40) each having a length of at least about 25 cm.
  11. A device according to Claim 10, characterized in that the beam (37) comprises step-like stops (42) each associated with a sensor (40) for application to the side of a rail head (43).
EP91890191A 1990-09-27 1991-08-29 Device for placing on rails a tool-carrying frame Expired - Lifetime EP0478531B1 (en)

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AT1958/90 1990-09-27
AT195890 1990-09-27

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AT (1) ATE85995T1 (en)
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CN102704359B (en) * 2011-12-30 2016-08-03 北京中铁房山桥梁有限公司 Heavy duty sleeper and the fixing device of switch tie preburied iron base
JP6245505B2 (en) * 2013-08-23 2017-12-13 三菱重工業株式会社 Derailment recovery device, maintenance vehicle, and derailment recovery method
CN110816586B (en) * 2019-09-30 2021-01-26 江苏振光电力设备制造有限公司 Traveling derailment prevention device capable of dynamically monitoring rail state
CN114179854B (en) * 2021-12-07 2023-01-10 中国铁道科学研究院集团有限公司 Measuring equipment with shock-absorbing function

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CN1060265A (en) 1992-04-15
RO114650B1 (en) 1999-06-30
CA2048822A1 (en) 1992-03-28
JPH04247101A (en) 1992-09-03
HU913003D0 (en) 1992-01-28
CN1023334C (en) 1993-12-29
HUT58837A (en) 1992-03-30
AU644214B2 (en) 1993-12-02
EP0478531A1 (en) 1992-04-01
AU8473491A (en) 1992-07-23
PL291822A1 (en) 1992-06-26
CZ278240B6 (en) 1993-10-13
CA2048822C (en) 2002-02-19
SK277777B6 (en) 1994-12-07
JP2851191B2 (en) 1999-01-27
ATE85995T1 (en) 1993-03-15
DE59100046D1 (en) 1993-04-01
RU2015240C1 (en) 1994-06-30
HU215725B (en) 1999-02-01
PL166295B1 (en) 1995-05-31
CS293491A3 (en) 1992-07-15

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