EP1387004A2 - Device for controlling the condition of tracks, especially ballastless tracks - Google Patents

Device for controlling the condition of tracks, especially ballastless tracks Download PDF

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Publication number
EP1387004A2
EP1387004A2 EP03015746A EP03015746A EP1387004A2 EP 1387004 A2 EP1387004 A2 EP 1387004A2 EP 03015746 A EP03015746 A EP 03015746A EP 03015746 A EP03015746 A EP 03015746A EP 1387004 A2 EP1387004 A2 EP 1387004A2
Authority
EP
European Patent Office
Prior art keywords
height
threshold
loosened
measuring vehicle
tracks
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.)
Withdrawn
Application number
EP03015746A
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German (de)
French (fr)
Other versions
EP1387004A3 (en
Inventor
Martin Kowalski
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.)
Rail One GmbH
Original Assignee
Pfleiderer Infrastrukturtechnick GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfleiderer Infrastrukturtechnick GmbH and Co KG filed Critical Pfleiderer Infrastrukturtechnick GmbH and Co KG
Publication of EP1387004A2 publication Critical patent/EP1387004A2/en
Publication of EP1387004A3 publication Critical patent/EP1387004A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/08—Measuring installations for surveying permanent way
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/12—Applications of measuring apparatus or devices for track-building purposes for measuring movement of the track or of the components thereof under rolling loads, e.g. depression of sleepers, increase of gauge
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/09—Ballastless systems
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement

Definitions

  • a device is provided according to the invention, the is characterized by, preferably installed in a measuring vehicle designed as a laser scanning system, height sensor system for determining the Height of a tension clamp and / or the rail foot and / or one Threshold.
  • a measuring vehicle designed as a laser scanning system, height sensor system for determining the Height of a tension clamp and / or the rail foot and / or one Threshold.
  • Such a sensor monitoring system for detection is the simplest loosened tension clamps.
  • the Invention provided that that arranged above the middle loop of the tension clamps Height sensing system the difference in height of the middle loop to the surface the angle guide plate detects what in the simplest case with one and the same height sensing sensor can be achieved.
  • the tension screw When the tension screw is loosened, it springs the middle loop of the tension clamp upwards, so that when you scan it Middle loop results in a significant height deviation compared to the nominal value, which is a quick and reliable detection of such loosened tension clamps allows.
  • a device is provided in which the Area of a loaded and an unloaded axle of the measuring vehicle in each case has two scanning sensors arranged side by side.
  • the spring stiffness of the elastic intermediate layers of the rail supports is recorded by the one of these scanning sensors of each scanning sensor pair arranged on separate axes the rail foot and the other the threshold surface.
  • Each one Difference in the height measurement values of each sensor pair is determined, the difference value for the loaded axle will of course be larger than that for the unloaded axle. The size of this deviation is for the remaining spring stiffness the elastic intermediate layers.
  • the sensors To detect loosened thresholds, the sensors record each sensor pair one axis the threshold surface and the surface of the concrete slab. In contrast to fixed thresholds, the height overhang varies Surface of a loosened (and thus moving) threshold to the concrete slab, so that again easy detection of such loosened Thresholds occur simply by crossing a route with a measuring vehicle can.
  • the thresholds In the fixed slab 1 are the thresholds, in the present case there is one Half 2 of a two-block sleeper with protruding lattice girder reinforcement 3 shown, concreted, the rail 4 via intermediate layers 5 on the rail support 6 stored and using spring clips 7 and these penetrating Clamping screws 8 is held.
  • the tension clamp 7 is supported on the one hand the rail foot 9 and on the other hand on angle guide plates 10.
  • the spring stiffness of the elastic intermediate layers 5 run height sensing sensors, preferably a laser scanning system, both along the line A-A, as well as along the line B-B.
  • the axes of a measuring vehicle are each two adjacent height sensing sensors provided so that one along line A and the other runs along line B.
  • the sensor on the loaded axis supplies values for Determination of the surface height of the rail foot 7 under load, relative to unchanged height of the sleeper surface along the Line B-B.
  • the second pair of sensors on an unloaded axis again determines the distance to the rail foot 7 or to the surface of the threshold and from it specifically the difference between these height values, that for an unloaded axle, for which the Intermediate layers 5 are not so strongly compressed, is different than on the loaded axis.
  • the degree of compression results from the differences the intermediate layers and from this the spring stiffness can be determined and monitored become.
  • a height sensor runs lengthways to detect loosened tension clamps the scan line C-C, on the one hand the surface height of the tension clamp, specifically the middle loop of the tension clamp, relative to the height of the surface of the Determined angle guide plate 10.
  • the clamping screw 8 When the clamping screw 8 is loosened, the spring springs Middle loop upwards, so that there is a much larger distance from the Angle guide plate results in what a corresponding change in the difference the sensed height values of the tension clamp and the angle guide plate is recognizable.
  • the measuring range should be approx. 30 mm, the resolution if possible be 0.2 mm or better.
  • a distinction between stressed and unloaded axis in this detection of loosened tension clamps generally unnecessary.
  • a scanning device is used to determine relaxed thresholds, as they also for monitoring the spring stiffness of the elastic intermediate layers has already been used.
  • the scanning sensors are running along the line B on the one hand and along the line D on the other.
  • the Sensors on the loaded axle determine by pressing down the loosened one Threshold in the carriageway slab 1 a smaller height difference between the surface of the threshold and the surface of the pavement slab as the sensors at the unloaded threshold.
  • the measuring range in this case should be approx. 100 mm and the resolution is again about 0.2 mm.

Abstract

A monitoring device, especially for the superstructure of a track (1) of fixed rails (4) comprises a measuring vehicle having, laser contact height sensors to determine the height position of bridging clamps (7) and/or the rail base (9) and/or a sleeper.

Description

Durch Materialermüdung, Materialbruch oder andere Alterungsvorgänge können bei festen Fahrbahnen eine Vielzahl von Veränderungen der Auflagerung entstehen, die nach Möglichkeit ständig überwacht und gegebenenfalls korrigiert werden müssen.Due to material fatigue, material breakage or other aging processes a large number of changes in the support occur on solid carriageways, which are continuously monitored and corrected if necessary have to.

Um eine solche Überwachung möglichst einfach und in regelmäßigen Abständen durchführen zu können, ist erfindungsgemäß eine Vorrichtung vorgesehen, die gekennzeichnet ist durch ein in einem Messfahrzeug eingebautes, vorzugsweise als Laserabtastsystem ausgebildetes, Höhensensorsystem zur Bestimmung der Höhenlage einer Spannklemme und/oder des Schienenfußes und/oder einer Schwelle.To make such monitoring as simple as possible and at regular intervals To be able to perform, a device is provided according to the invention, the is characterized by, preferably installed in a measuring vehicle designed as a laser scanning system, height sensor system for determining the Height of a tension clamp and / or the rail foot and / or one Threshold.

Am einfachsten gestaltet sich ein derartiges Sensorüberwachungssystem zur Detektierung gelockerter Spannklemmen. Hierzu ist in weiterer Ausgestaltung der Erfindung vorgesehen, dass das über der Mittelschlaufe der Spannklemmen angeordnete Höhenabtastsystem die Höhendifferenz der Mittelschlaufe zur Oberfläche der Winkelführungsplatte erfasst, was im einfachsten Fall mit ein und dem gleichen Höhenabtastsensor erzielbar ist. Bei gelockerter Spannschraube federt die Mittelschlaufe der Spannklemme nach oben, sodass sich bei Abtastung dieser Mittelschlaufe eine erhebliche Höhenabweichung gegenüber dem Sollwert ergibt, die ein rasches und zuverlässiges Detektieren solcher gelockerter Spannklemmen ermöglicht.Such a sensor monitoring system for detection is the simplest loosened tension clamps. In a further embodiment, the Invention provided that that arranged above the middle loop of the tension clamps Height sensing system the difference in height of the middle loop to the surface the angle guide plate detects what in the simplest case with one and the same height sensing sensor can be achieved. When the tension screw is loosened, it springs the middle loop of the tension clamp upwards, so that when you scan it Middle loop results in a significant height deviation compared to the nominal value, which is a quick and reliable detection of such loosened tension clamps allows.

Zur Überwachung der Federsteifigkeit der elastischen Zwischenlager der Schienenauflager, oder aber auch zur Detektierung gelockerter Schwellen ist erfindungsgemäß eine Vorrichtung vorgesehen, bei der das im Bereich einer belasteten und einer unbelasteten Achse des Messfahrzeugs jeweils zwei nebeneinander angeordnete Abtastsensoren aufweist. Zur Überwachung der Federsteifigkeit der elastischen Zwischenlagen der Schienenauflager erfasst der eine dieser Abtastsensoren jedes an getrennten Achsen angeordneten Abtastsensorpaars den Schienenfuß und der andere die Schwellenoberfläche. Jeweils die Differenz der Höhenmesswerte jedes Sensorpaars wird ermittelt, wobei der Differenzwert für die belastete Achse selbstverständlich größer sein wird, als der für die unbelastete Achse. Die Größe dieser Abweichung ist für die noch bestehende Federsteifigkeit der elastischen Zwischenlagen.To monitor the spring stiffness of the elastic intermediate bearings of the rail supports, or else for the detection of loosened sleepers is according to the invention a device is provided in which the Area of a loaded and an unloaded axle of the measuring vehicle in each case has two scanning sensors arranged side by side. To monitor the The spring stiffness of the elastic intermediate layers of the rail supports is recorded by the one of these scanning sensors of each scanning sensor pair arranged on separate axes the rail foot and the other the threshold surface. Each one Difference in the height measurement values of each sensor pair is determined, the difference value for the loaded axle will of course be larger than that for the unloaded axle. The size of this deviation is for the remaining spring stiffness the elastic intermediate layers.

Zur Detektierung gelockerter Schwellen erfassen die Sensoren jedes Sensorpaars einer Achse einmal die Schwellenoberfläche und einmal die Oberfläche der Betontragplatte. Im Gegensatz zu festen Schwellen variiert der Höhenüberstand der Oberfläche eines gelockerten (und sich damit bewegenden) Schwelle zur Betontragplatte, sodass auch hier wieder ein einfaches Detektieren solcher gelockerter Schwellen durch bloßes Überfahren einer Strecke mit einem Messfahrzeug erfolgen kann.To detect loosened thresholds, the sensors record each sensor pair one axis the threshold surface and the surface of the concrete slab. In contrast to fixed thresholds, the height overhang varies Surface of a loosened (and thus moving) threshold to the concrete slab, so that again easy detection of such loosened Thresholds occur simply by crossing a route with a measuring vehicle can.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels sowie anhand der Zeichnung. Dabei zeigen:

Fig. 1
einen Teilquerschnitt durch eine feste Fahrbahn parallel zur Schwellenachse,
Fig. 2
eine Aufsicht auf den Schwellenaufschnitt der Fig. 1, wobei verschiedene Abtastlinien eingezeichnet sind, längs deren Höhenmesssensoren an einem Messwagen verfahrbar sind und
Fig. 3
einen Schnitt längs der Linie III-III in Fig. 1.
Further advantages, features and details of the invention result from the following description of an exemplary embodiment and from the drawing. Show:
Fig. 1
a partial cross section through a fixed carriageway parallel to the threshold axis,
Fig. 2
a top view of the threshold cut-up of FIG. 1, with different scanning lines being drawn in, along whose height measuring sensors can be moved on a measuring carriage and
Fig. 3
a section along the line III-III in Fig. 1st

In die feste Fahrbahnplatte 1 sind die Schwellen, im vorliegenden Fall ist eine Hälfte 2 einer Zweiblockschwelle mit herausstehender Gitterträgerarmierung 3 gezeigt, einbetoniert, wobei die Schiene 4 über Zwischenlagen 5 auf dem Schienenauflager 6 gelagert und mithilfe von Federklemmen 7 und diese durchsetzende Spannschrauben 8 gehaltert ist. Die Spannklemme 7 stützt sich zum einen auf dem Schienenfuß 9 und zum anderen auf Winkelführungsplatten 10 ab. Zur Überwachung der Federsteifigkeit der elastischen Zwischenlagen 5 laufen Höhenabtastsensoren, vorzugsweise eines Laserabtastsystems, sowohl längs der Linie A-A, als auch längs der Linie B-B. An einer belasteten Achse und an einer unbelasteten Achse eines Messfahrzeugs sind jeweils zwei nebeneinanderliegende Höhenabtastsensoren vorgesehen, sodass der eine längs der Linie A und der andere längs der Linie B verläuft. Der Sensor an der belasteten Achse liefert Werte zur Ermittlung der Oberflächenhöhe des Schienenfußes 7 unter Belastung, relativ zur durch die Belastung unveränderte Höhenlage der Schwellenoberfläche längs der Linie B-B.In the fixed slab 1 are the thresholds, in the present case there is one Half 2 of a two-block sleeper with protruding lattice girder reinforcement 3 shown, concreted, the rail 4 via intermediate layers 5 on the rail support 6 stored and using spring clips 7 and these penetrating Clamping screws 8 is held. The tension clamp 7 is supported on the one hand the rail foot 9 and on the other hand on angle guide plates 10. For surveillance the spring stiffness of the elastic intermediate layers 5 run height sensing sensors, preferably a laser scanning system, both along the line A-A, as well as along the line B-B. On a loaded axle and on an unloaded one The axes of a measuring vehicle are each two adjacent height sensing sensors provided so that one along line A and the other runs along line B. The sensor on the loaded axis supplies values for Determination of the surface height of the rail foot 7 under load, relative to unchanged height of the sleeper surface along the Line B-B.

Das zweite Sensorpaar an einer unbelasteten Achse ermittelt wiederum den Abstand zum Schienenfuß 7 bzw. zur Oberfläche der Schwelle und daraus speziell die Differenz dieser Höhenwerte, die bei einer unbelasteten Achse, bei der ja die Zwischenlagen 5 nicht so stark zusammengepresst sind, anders ist, als an der belasteten Achse. Aus den Differenzen ergibt sich das Maß der Zusammendrückung der Zwischenlagen und daraus kann die Federsteifigkeit bestimmt und überwacht werden.The second pair of sensors on an unloaded axis again determines the distance to the rail foot 7 or to the surface of the threshold and from it specifically the difference between these height values, that for an unloaded axle, for which the Intermediate layers 5 are not so strongly compressed, is different than on the loaded axis. The degree of compression results from the differences the intermediate layers and from this the spring stiffness can be determined and monitored become.

Zur Detektion von gelockerten Spannklemmen läuft ein Höhenabtastsensor längs der Abtastlinie C-C, wobei er zum einen die Oberflächenhöhe der Spannklemme, speziell der Mittelschlaufe der Spannklemme, relativ zur Höhe der Oberfläche der Winkelführungsplatte 10 bestimmt. Bei gelockerter Spannschraube 8 federt die Mittelschlaufe nach oben, sodass sich ein sehr viel größerer Abstand von der Winkelführungsplatte ergibt, was durch einet entsprechende Änderung der Differenz der abgetasteten Höhenwerte der Spannklemme und der Winkelführungsplatte erkennbar ist. Der Messbereich sollte in diesem Fall ca. 30 mm, die Auflösung möglichst 0,2 mm oder besser betragen. Eine Unterscheidung zwischen belasteter und unbelasteter Achse ist bei dieser Detektion von gelockerten Spannklemmen im Allgemeinen entbehrlich.A height sensor runs lengthways to detect loosened tension clamps the scan line C-C, on the one hand the surface height of the tension clamp, specifically the middle loop of the tension clamp, relative to the height of the surface of the Determined angle guide plate 10. When the clamping screw 8 is loosened, the spring springs Middle loop upwards, so that there is a much larger distance from the Angle guide plate results in what a corresponding change in the difference the sensed height values of the tension clamp and the angle guide plate is recognizable. In this case the measuring range should be approx. 30 mm, the resolution if possible be 0.2 mm or better. A distinction between stressed and unloaded axis in this detection of loosened tension clamps generally unnecessary.

Zur Feststellung von gelockerten Schwellen wird eine Abtastvorrichtung verwendet, wie sie auch zur Überwachung der Federsteifigkeit der elastischen Zwischenlagen bereits eingesetzt worden ist. In diesem Fall laufen allerdings die Abtastsensoren längs der Linie B einerseits und längs der Linie D andererseits. Die Sensoren an der belasteten Achse ermitteln durch das Herunterdrücken der gelockerten Schwelle in die Fahrbahnplatte 1 eine geringere Höhendifferenz zwischen der Oberfläche der Schwelle und der Oberfläche der Fahrbahnplatte als die Sensoren an der nicht belasteten Schwelle. An der nicht belasteten Schwelle ragt die gelockerte Schwelle stärker aus der Fahrbahnplatte 1 heraus, sodass die entsprechenden Höhedifferenzen größer sind. Der Messbereich in diesem Fall sollte ca. 100 mm und die Auflösung wiederum etwa 0,2 mm betragen.A scanning device is used to determine relaxed thresholds, as they also for monitoring the spring stiffness of the elastic intermediate layers has already been used. In this case, however, the scanning sensors are running along the line B on the one hand and along the line D on the other. The Sensors on the loaded axle determine by pressing down the loosened one Threshold in the carriageway slab 1 a smaller height difference between the surface of the threshold and the surface of the pavement slab as the sensors at the unloaded threshold. The protrudes at the unloaded threshold loosened threshold stronger out of the slab 1, so that the corresponding Differences in height are larger. The measuring range in this case should be approx. 100 mm and the resolution is again about 0.2 mm.

Claims (4)

Vorrichtung zur Überwachung des Oberbauzustandes von insbesondere festen Fahrbahnen, gekennzeichnet durch ein in einem Messfahrzeug eingebautes, vorzugsweise als Laserabtastsystem ausgebildetes, Höhensensorsystem zur Bestimmung der Höhenlage einer Spannklemme und/oder des Schienenfußes und/oder einer Schwelle.Device for monitoring the state of the superstructure of, in particular, solid carriageways, characterized by a height sensor system installed in a measuring vehicle, preferably in the form of a laser scanning system, for determining the height of a tension clamp and / or the rail foot and / or a threshold. Vorrichtung nach Anspruch 1 zur Detektierung gelockerter Spannschrauben, dadurch gekennzeichnet, dass das über der Mittelschlaufe der Spannklemmen angeordnete Höhenabtastsystem die Höhendifferenz der Mittelschlaufe zur Oberfläche der Winkelführungsplatte erfasst.Apparatus according to claim 1 for the detection of loosened tensioning screws, characterized in that the height sensing system arranged above the middle loop of the tensioning clamps detects the height difference of the middle loop from the surface of the angle guide plate. Vorrichtung nach Anspruch 1, zur Überwachung der Federsteifigkeit der elastischen Zwischenlagen der Schienenauflager, dadurch gekennzeichnet, dass das Höhenabtastsystem im Bereich einer belasteten und einer unbelasteten Achse des Messfahrzeuges jeweils zwei nebeneinander angeordnete Abtastsensoren aufweist, von denen der eine den Schienenfuß und der andere die Schwellenoberflächen abtastet.Apparatus according to claim 1, for monitoring the spring stiffness of the elastic intermediate layers of the rail supports, characterized in that the height sensing system in the area of a loaded and an unloaded axle of the measuring vehicle each has two scanning sensors arranged next to one another, one of which scans the rail foot and the other the threshold surfaces , Vorrichtung nach Anspruch 1 zur Detektierung gelockerter Schwellen, dadurch gekennzeichnet, dass das Höhenabtastsystem im Bereich einer belasteten und einer unbelasteten Achse des Messfahrzeugs jeweils zwei nebeneinander angeordnete. Abtastsensoren aufweist, von denen der eine die Schwellenoberflächen und der andere die Oberfläche der Betontragplatte abtastet.Apparatus according to claim 1 for the detection of loosened sleepers, characterized in that the height sensing system in each case two adjacent to each other in the area of a loaded and an unloaded axis of the measuring vehicle. Has scanning sensors, one of which scans the threshold surfaces and the other the surface of the concrete support plate.
EP03015746A 2002-08-03 2003-07-10 Device for controlling the condition of tracks, especially ballastless tracks Withdrawn EP1387004A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10235537 2002-08-03
DE10235537A DE10235537C1 (en) 2002-08-03 2002-08-03 Monitoring device especially for the superstructure of fixed tracks has measuring vehicle having laser height sensor touch system

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EP1387004A2 true EP1387004A2 (en) 2004-02-04
EP1387004A3 EP1387004A3 (en) 2005-02-09

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US (1) US7023539B2 (en)
EP (1) EP1387004A3 (en)
JP (1) JP3836094B2 (en)
KR (1) KR100792775B1 (en)
CN (1) CN1480587A (en)
BR (1) BR0302654A (en)
CA (1) CA2436047C (en)
DE (2) DE10235537C1 (en)
TW (1) TW200406326A (en)

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DE20307616U1 (en) 2003-09-18
TW200406326A (en) 2004-05-01
CA2436047A1 (en) 2004-02-03
JP2004068591A (en) 2004-03-04
KR100792775B1 (en) 2008-01-11
US7023539B2 (en) 2006-04-04
US20040117075A1 (en) 2004-06-17
BR0302654A (en) 2004-08-24
JP3836094B2 (en) 2006-10-18
CN1480587A (en) 2004-03-10
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CA2436047C (en) 2008-01-29
EP1387004A3 (en) 2005-02-09

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