EP1222099B1 - Dispositif pour mesurer la temperature d'essieux ou de paliers afin de localiser des boites chaudes ou des freins surchauffes dans du materiel roulant - Google Patents

Dispositif pour mesurer la temperature d'essieux ou de paliers afin de localiser des boites chaudes ou des freins surchauffes dans du materiel roulant Download PDF

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Publication number
EP1222099B1
EP1222099B1 EP00967415A EP00967415A EP1222099B1 EP 1222099 B1 EP1222099 B1 EP 1222099B1 EP 00967415 A EP00967415 A EP 00967415A EP 00967415 A EP00967415 A EP 00967415A EP 1222099 B1 EP1222099 B1 EP 1222099B1
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EP
European Patent Office
Prior art keywords
deflection mirrors
mirror
measuring
infrared rays
plane
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
EP00967415A
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German (de)
English (en)
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EP1222099A1 (fr
Inventor
Wolfgang Nayer
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.)
Voestalpine Railway Systems GmbH
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Voestalpine VAE GmbH
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Filing date
Publication date
Application filed by Voestalpine VAE GmbH filed Critical Voestalpine VAE GmbH
Publication of EP1222099A1 publication Critical patent/EP1222099A1/fr
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Publication of EP1222099B1 publication Critical patent/EP1222099B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
    • B61K9/06—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault by detecting or indicating heat radiation from overheated axles

Definitions

  • the invention relates to a device for measuring Axle or bearing temperatures for locating hot runners or overheated brakes in rolling rail traffic, in which the Infrared rays of the measuring points over an oscillating Oscillating mirrors are directed onto an infrared receiver, whereby infrared rays emitted transversely to the longitudinal direction of the rail in that defined by the oscillation of the oscillating mirror Scanning plane can be detected.
  • HOA hot runner location systems
  • detectors thermal detectors such as bolometers or quickly responding heat radiation sensors, such as HgCd, HgTe, InSb, PbSe or combinations of such semiconductors used.
  • Such semiconductor detectors talk through thermal excitation of free charge carriers for changes to and are able to resolve radiation with a high pulse train, however for the continuous detection of a certain temperature level without additional facilities such as Modulators or deflection devices, which the incident Interrupt the beam cyclically or to other temperature levels direct, not suitable.
  • Such facilities are usually in the track area arranged and the measuring beam passes through a window of the Device and corresponding deflection devices on the in general cooled detector.
  • the arrangement is usually made so that the active window including an angle to the normal warehouse of a rolling rail vehicle can capture.
  • sine wave Developed a series of special evaluation methods with which actually the hottest part of an axis or one Bearing can be detected transversely to the longitudinal direction of the rail, wherein a special measurement and evaluation method, for example is described in AT 398 413 B.
  • a common disadvantage of the previously known device is in the fact that very different wheel sizes, in particular different wheel sizes for passenger cars or heavy-duty wagons, especially so-called low-floor wagons, significantly influence the possible scanning range, which results from the distance of the oscillating mirror to the scanning surface derives. Due to the geometry of different vehicles and especially the geometry of different bearings it is usually only very much with a single facility difficult to do, several scanning areas simultaneously with different To register car groups.
  • the invention now aims to provide a simple device of the type mentioned at the beginning with an oscillating oscillating mirror, which covers a scanning plane to create with which it regardless of the geometry of the particular rolling It is possible to have defined positions in the field of vehicles Axle of a vehicle, especially bearing axles, brakes, such as for example, disc brakes or others may be prohibited to detect heated parts and with only one Detector device to obtain complete information.
  • the device according to the invention is used to achieve this object essentially in that within the scan plane at least two deflecting mirrors at a distance transversely to the longitudinal direction of the rail are arranged from each other, the deflected Infrared rays corresponding to the oscillation of the oscillating mirror be recorded in chronological order.
  • the inventive design is particularly advantageous hiebei hit so that the deflecting mirror as one Deflecting mirror rotating axis normal to the mirror plane are trained.
  • Such rotating deflecting mirror can with a correspondingly high rotational speed on the Dust particles striking the mirror surface by centrifugal force throw off again, so that a self-cleaning effect of Deflecting mirror is observed.
  • the training can advantageously be made such that the Levels of the mirror surfaces of the deflecting mirror essentially are arranged parallel to each other. If such mirror surfaces the deflecting mirror essentially parallel to one another are arranged within the through the Oscillating mirrors define a plurality of scanning levels positions above such a deflecting mirror assigned and successively recorded, whereby a particularly simple compensation of heterodyne signals when changing from one deflecting mirror to the next deflecting mirror within the oscillation range of the oscillating mirror is made possible.
  • the training is made in a particularly simple manner that the deflecting mirror in the driving plane or relative to the level spanned by the rail sleepers different Height or different vertical spacing arranged are.
  • the threshold axis for recording exact positions of a Axis or of a bearing without the optical axis of the detector should be inclined in such a way that it due to different geometrical designs of the chassis could be affected by vehicles. This applies in particular to a preferably essentially horizontal one Arrangement of the optical axis of the input optics of the Detector.
  • the training according to the invention is advantageously made such that the rotating deflecting mirror within a hollow Threshold are arranged and that the threshold in vertical Direction above the respective mirror openings or Has windows for the passage of infrared rays.
  • the rotating deflecting mirror can be protected itself can be arranged and it can be done with a narrowly defined and scanning angle not disturbed by external influences within that defined by the oscillation of the mirror Scanning plane a plurality of measuring points or measuring ranges be grasped safely.
  • the openings or windows of the Threshold can be suitably through infrared transparent Glasses or protected by screens or sliders, so the risk of pollution of the mirrors is significant can be reduced.
  • the training is advantageously made so that the optical Axis of the entrance lens of the oscillating oscillating mirror and the detector containing the infrared receiver runs parallel to the driving level.
  • Such an orientation the optical axis of the optics of the detector and in particular the optical axis of the entrance lens of the detector allows the detector itself to be protected, for example to be arranged within a hollow threshold, so that impairments due to mechanical influences or pollution can be further reduced.
  • this allows Training to ensure that even in the case of low-floor wagons or parts of the measuring beam hanging from wagons can not be interrupted in any way and therefore The required measurement values are available for all axes can be put.
  • the training is made so that the levels the deflecting mirror is inclined approximately 45 ° to the driving level are, preferably the optical axis of the entrance lens of the detector within the hollow threshold in the longitudinal direction of the threshold is arranged axially or axially parallel.
  • An exact one Assignment to each staggered in the longitudinal direction of the axes Measuring ranges or measuring points, such as Bearings or disc brakes can be achieved with advantage that the deflecting mirror below the one to be detected Measuring points are arranged, with a particularly high Measurement accuracy can be guaranteed if the rotating Deflecting mirror within the vertical projection of the respective Measuring surface are arranged. This way each time the entire measuring area in the oscillation range of the Vibration level scanned so that complete information obtained over the axial width of the area to be measured can be.
  • Hot runner location system are the deflection mirrors as convex or concave deflecting mirror.
  • the scanning area can be enlarged and at Using a concave mirror limits the scanning area become.
  • FIG. 1 shows a schematic arrangement of with two rotating deflecting mirrors relative to a detector an oscillating mirror and
  • Fig. 2 is a schematic arrangement the device inside a hollow measuring threshold.
  • Fig. 1 are two rotating deflecting mirrors 1 and 2 in the axial direction a threshold offset by a distance a, the detector 3 being axially spaced from the two rotating deflecting mirrors 1 and 2 with essentially horizontal Axis 4 of the input optics or input lens 5 is arranged is.
  • Axis 4 denotes the central beam, which with the interposition of the focusing optical Element, namely the input lens 5 on a field lens 6 arrives.
  • At 7 there is an autocollimation element at which the temperature of the infrared detector 8 a corresponding oscillating position of the oscillating mirror 9 provided that it is reflected on itself, so that a Reference value can be obtained.
  • the oscillating mirror 9 swings in the direction of the double arrow 10, whereby one in the Scanning plane spanning the drawing plane and in the course the oscillating oscillation of the oscillating mirror 9 initially a first partial scan over area b with interposition of the deflecting mirror 2 and subsequently another partial scan over an axial length c using the deflecting mirror 1 takes place, the respective measuring beams lying in the plane by the angular ranges ⁇ and ⁇ in chronological order from Detector 8 can be detected. It goes without saying that a further rotating mirror, not shown, the scanning other measuring points, such as a disc brake allows.
  • planar mirrors can be used or, as indicated in FIG. 1 with dashed lines, Convex or concave mirror can be used.
  • the measuring threshold has windows 12 and 13, through which originate from the partial area to be measured Infrared rays reach deflecting mirrors 1 and 2 can, these windows 12 and 13 with sliders can be closed. 2 the measuring beam entering through the window 13 is oriented in such a way that a portion d of a bearing in the direction of Axis of the bearing can be detected and the corresponding Temperature measurements over this sub-area d are detected by the detector can be.
  • the partial area lying above the measuring window 12 is part of the axis 14 of a rail vehicle, whose impeller is designated 15.
  • the Rail itself is indicated schematically at 16 and across Threshold longitudinal axis set at the threshold.
  • the windows 12 and 13 and possibly other windows can be vertically below the area to be measured be arranged, the axial central beam of the measuring device itself, i.e. the optical axis of the focusing optical element 5 protected inside the threshold in can run essentially horizontally, but so different Training of chassis and different Dimensions of wheels and bearings as little as by depending part of a vehicle are interrupted can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radiation Pyrometers (AREA)
  • Braking Arrangements (AREA)
  • Rolling Contact Bearings (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (11)

  1. Dispositif pour mesurer des températures d'essieu et de palier pour la localisation de boítes chaudes ou de freins surchauffés sur des véhicules ferroviaires roulants, dans lequel les rayons infrarouges des points de mesure sont dirigés au moyen d'un miroir vibrant (9) oscillant sur un capteur de rayons infrarouges (8), des rayons infrarouges émis transversalement au sens longitudinal des rails étant détectés dans le plan de balayage défini par l'oscillation du miroir vibrant (9), caractérisé en ce que, à l'intérieur du plan de balayage, sont disposés, à une distance (a) l'un de l'autre transversalement au sens longitudinal des rails, au moins deux miroirs de déviation (1, 2) dont les rayons infrarouges déviés sont enregistrés en succession dans le temps, en fonction de l'oscillation du miroir vibrant (9).
  2. Dispositif selon la revendication 1, caractérisé en ce que les miroirs de déviation (1, 2) sont conçus comme des miroirs de déviation (1, 2) tournant autour d'un axe perpendiculaire au plan du miroir.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les plans des surfaces des miroirs de déviation (1, 2) sont disposés de façon sensiblement parallèle l'un par rapport à l'autre.
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que les miroirs de déviation (1, 2) sont disposés à une hauteur différente ou à une distance verticale différente du plan de roulement ou par rapport au plan sous-tendu par les traverses de rails.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les miroirs de déviation tournants (1, 2) sont disposés à l'intérieur d'une traverse (11) creuse et en ce que la traverse (11) présente dans le sens vertical, au-dessus des miroirs respectifs (1, 2), des percements ou des fenêtres (12, 13) pour le passage de rayons infrarouges.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'axe optique (4) de la lentille d'entrée (5) du détecteur (3) contenant le miroir vibrant (9) oscillant et le capteur de rayons infrarouges (8) est sensiblement parallèle au plan de roulement.
  7. Dispositif selon la revendication 6, caractérisé en ce que les plans des miroirs de déviation (1, 2) sont disposés sous une inclinaison d'environ 45° par rapport au plan de roulement.
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que l'axe optique (4) de la lentille d'entrée (5) du détecteur (3) est disposé à l'intérieur de la traverse (11) creuse, dans le sens longitudinal de la traverse, en direction axiale ou parallèle à l'axe.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que les miroirs de déviation (1, 2) sont disposés respectivement au-dessous des points de mesure à enregistrer.
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que les miroirs de déviation tournants (1, 2) sont disposés à l'intérieur de la projection verticale de la surface de mesure respective.
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que les miroirs de déviation sont conçus comme des miroirs de déviation convexes ou concaves.
EP00967415A 1999-10-19 2000-10-09 Dispositif pour mesurer la temperature d'essieux ou de paliers afin de localiser des boites chaudes ou des freins surchauffes dans du materiel roulant Expired - Lifetime EP1222099B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0176999A AT408092B (de) 1999-10-19 1999-10-19 Einrichtung zum messen von achs- bzw. lagertemperaturen zur ortung von heissläufern oder überhitzten bremsen im rollenden bahnverkehr
AT176999 1999-10-19
PCT/AT2000/000262 WO2001028838A1 (fr) 1999-10-19 2000-10-09 Dispositif pour mesurer la temperature d'essieux ou de paliers afin de localiser des boites chaudes ou des freins surchauffes dans du materiel roulant

Publications (2)

Publication Number Publication Date
EP1222099A1 EP1222099A1 (fr) 2002-07-17
EP1222099B1 true EP1222099B1 (fr) 2003-05-21

Family

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Application Number Title Priority Date Filing Date
EP00967415A Expired - Lifetime EP1222099B1 (fr) 1999-10-19 2000-10-09 Dispositif pour mesurer la temperature d'essieux ou de paliers afin de localiser des boites chaudes ou des freins surchauffes dans du materiel roulant

Country Status (11)

Country Link
US (1) US6695472B1 (fr)
EP (1) EP1222099B1 (fr)
CN (1) CN1283509C (fr)
AT (2) AT408092B (fr)
AU (1) AU7761500A (fr)
CA (1) CA2386409C (fr)
DE (1) DE50002291D1 (fr)
DK (1) DK1222099T3 (fr)
HU (1) HU225351B1 (fr)
PL (1) PL354198A1 (fr)
WO (1) WO2001028838A1 (fr)

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KR100715235B1 (ko) * 2007-02-05 2007-05-11 이화여자대학교 산학협력단 사건이나 사물을 관찰하기 위한 광학 모듈
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Also Published As

Publication number Publication date
PL354198A1 (en) 2003-12-29
CN1283509C (zh) 2006-11-08
CA2386409C (fr) 2007-05-01
HUP0203073A3 (en) 2003-04-28
ATA176999A (de) 2001-01-15
HU225351B1 (en) 2006-10-28
CA2386409A1 (fr) 2001-04-26
DE50002291D1 (de) 2003-06-26
ATE240862T1 (de) 2003-06-15
HUP0203073A2 (hu) 2003-01-28
WO2001028838A1 (fr) 2001-04-26
AU7761500A (en) 2001-04-30
US6695472B1 (en) 2004-02-24
EP1222099A1 (fr) 2002-07-17
AT408092B (de) 2001-08-27
DK1222099T3 (da) 2003-09-22
CN1379720A (zh) 2002-11-13

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