WO2003004334A1 - Surveillance en fonctionnement d'un boudin de roue - Google Patents

Surveillance en fonctionnement d'un boudin de roue Download PDF

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Publication number
WO2003004334A1
WO2003004334A1 PCT/GB2002/002849 GB0202849W WO03004334A1 WO 2003004334 A1 WO2003004334 A1 WO 2003004334A1 GB 0202849 W GB0202849 W GB 0202849W WO 03004334 A1 WO03004334 A1 WO 03004334A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
block
flange
probe
probe member
Prior art date
Application number
PCT/GB2002/002849
Other languages
English (en)
Inventor
Winston Gehan Rasaiah
Alberto Villanueva-Leal
Original Assignee
Aea Technology Plc
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 Aea Technology Plc filed Critical Aea Technology Plc
Priority to GB0322672A priority Critical patent/GB2392726B/en
Publication of WO2003004334A1 publication Critical patent/WO2003004334A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G01M17/10—Suspensions, axles or wheels
    • 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
    • B61K9/12—Measuring or surveying wheel-rims
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • C10J2300/1621—Compression of synthesis gas

Definitions

  • This invention relates to an apparatus and a method for monitoring the flange of a wheel of a railway vehicle.
  • Wheels of railway vehicles whether locomotives, trucks or carriages, gradually become worn during use. Any excessive wear may increase the risk of derailment of the vehicle, and railway companies hence have a need to monitor wheel shapes.
  • the thickness of the flange may decrease as a result of wear, and if the thickness is less than a specified value then the wheel must be replaced. It would therefore be desirable to be able to monitor flange thickness on a frequent basis .
  • ⁇ inside' (of a rail, wheel or flange etc) refers to the side nearest- the centreline of the track.
  • an apparatus for monitoring the thickness of the flange of a wheel of a railway vehicle rolling along a rail comprising a block supported adjacent to the inside of the rail by a resilient support structure fixed to a base clamped to the rail, inner and outer probe members projecting above the block such that the inside of the flange pushes the inner probe member and hence the block away from the rail, the outer member consequently being pulled into contact with' the outside of the flange, at least one of the probe members being resiliently displaceable relative to the block, and means to provide signals indicating the separation of the probe members, wherein at least one probe member comprises a flexible strip combined with a strain gauge .
  • At least the inner probe member preferably defines a datum surface parallel to the side of the rail, and defines an inclined surface on each side of the datum surface, so that the block is pushed gradually away from the rail as the flange moves along the inclined surface to reach the datum surface. If vehicles can only approach the apparatus from one direction, then only one such inclined surface need be provided, but provision of two such inclined surfaces is still desirable to reduce the shocks to which the apparatus is subjected. Damping means may also be provided to prevent oscillation of the block.
  • the inner probe member may be substantially inflexible, and fixed rigidly to the block, and may be integral with it.
  • both the probe members define datum surfaces, comprising opposed strips of hard wear-resistant material, such as silicon carbide.
  • the outer probe member may locate in a recess in the side of the rail, being pulled out by the block into contact with the outside of the flange. Such a recess may be machined into the side of the rail head at the location where the apparatus is installed.
  • the apparatus may include two wedge members fixed to the side of the rail head so as to increase the effective width of the rail head, a recess being defined between the wider parts of the two wedge members.
  • the present invention provides an apparatus for monitoring the separation between the insides of the flanges of a wheelset of a railway vehicle rolling along a track comprising two rails, the apparatus comprising a first block supported adjacent to the inside of the first rail, by a resilient support structure fixed to a base clamped to the first rail, with an inner probe member projecting above the block such that the inside of a flange pushes the inner probe member and hence the first block away from the first rail, and a second block supported adjacent to the inside of the second rail by a resilient support structure fixed to a base clamped to the second rail, with an inner probe member projecting above the block such that the inside of a flange pushes the inner probe member and hence the second block away from the second rail, the first block and the second block being at positions directly opposite each other along the track, and each resilient support structure incorporating sensor means to indicate the displacement of the respective block.
  • the or each resilient support structure comprises a pair of parallel leaf springs; and in the second aspect the sensor means comprise strain gauges arranged to monitor the strain in one of the leaf springs.
  • the block is held in a fixed orientation to the rail as it is pushed away from the rail by the flange. The block is allowed to move sideways against the resilience of the leaf springs, but vertical movement is prevented.
  • the use of a flexible strip for a probe, and leaf springs for the resilient support avoids the inaccuracies that friction may cause where surfaces must slide relative to each other.
  • the apparatus of the second aspect may also incorporate outer probe members for measuring ' flange thickness, as in the first aspect of the invention, such outer probe members locating in recesses machined into the sides of the rail.
  • the apparatus may incorporate scrapers or brushes to remove contamination in particular from the inside of the flange.
  • the apparatus of the first or second aspect of the invention is preferably installed on a portion of track along which trains pass slowly, for example at a depot, and there may be a speed limit such as 10 or 20 km/hr imposed on that portion of track to reduce the shocks to which the apparatus is inevitably subjected.
  • a speed limit such as 10 or 20 km/hr imposed on that portion of track to reduce the shocks to which the apparatus is inevitably subjected.
  • Such apparatus enables the flange thickness, and the inter- flange separation, on every wheelset of every train to be monitored for example twice a week, so that any excessive wear can be detected and appropriate action taken in good time.
  • the invention also provides methods of monitoring flange thickness, and inter-flange separation, using such apparatus as described above.
  • Figure 1 shows a perspective view of a flange thickness monitoring apparatus of the invention
  • Figure 2 shows a sectional view of of the apparatus of figure 1;
  • Figure 3 shows a sectional view corresponding to that of figure 2 when a wheel is present
  • Figure 4 shows a perspective view, partly broken away, of a modification of the apparatus of Figure 1; and Figure 5 shows a detailed view, in elevation, of the outer probe in the apparatus of Figure .
  • an apparatus 10 for measuring the thickness of flanges of railway vehicles is shown attached to a rail 12, on the inside of the rail 12 (that is to say on the side nearest to the centre line of the track) .
  • the wheel tread rolls on the rail head 13, while the wheel flange is adjacent to the inside face 14 of the rail head 13.
  • the apparatus 10 includes a support pillar 16 in the form of a square cross-section steel tube, welded to a clamp 18 by which the apparatus 10 is fixed to the rail 12.
  • the apparatus also includes an anvil block 20 connected to the support pillar 16 by two parallel steel leaf springs 22; each spring 22 (when flat) lies in a vertical plane, and the springs 22 extend horizontally from the support pillar 16 to the block 20.
  • the anvil block 20 consists of a spacer 24 between the springs 22, and an anvil plate 25 integral with the spacer 24 and projecting upwardly.
  • the face of the anvil plate 25 facing the rail 12 defines a vertical datum surface 26 parallel to the longitudinal axis of the rail, and sloping surfaces 27 on each side of the datum surface 26.
  • the pillar 16, the springs 22, and the spacer 24 of the anvil block 20 are sufficiently far below the rail head 13 to be clear of any wheel flange, whereas the upper edge of the anvil plate 25 is above the level of the rail head 13.
  • a spring steel probe 32 Adjacent to the anvil block 20 a recess 30 is machined into the side 14 of the rail head 13.
  • a spring steel probe 32 extends upwardly from the edge of the spacer 24 next to the rail 12, the top of the probe 32 being a short distance (for example 3 mm) below the level of the rail head 13, and the probe 32 locating in the recess 30.
  • the probe 32 carries an electronic strain gauge 34, and near its top is attached a wear-resistant strip of ceramic 36 that extends horizontally.
  • FIG 2 shows a sectional view in the plane immediately adjacent to the anvil block 20
  • rubber stops 37 are attached on the face of the spacer 24 adjacent to the rail 12, and hydraulic dampers 38 (shown diagrammatically, and not shown in figure 1) may act on the opposite face of the spacer 24.
  • the orientations of the sloping faces 27 and the datum face 26 are shown more clearly in this view.
  • a typical wheel profile is shown in a broken line. When such a wheel rolls along the rail 12 the flange 39 comes into contact with the anvil plate 25, initially with the sloping face 27, so pushing the anvil block 20 away from the rail 12, until the inside of the flange 39 comes into contact with the datum surface 26.
  • the inside of the flange 39 pushes against the datum surface 26, while the probe 32 has been pulled into contact with the outer surface of the flange 39. Consequently the signals from the strain gauge 34, indicating the amount that the probe 32 has bent, are an indication of the thickness of the flange 39 at the distance below the rail head 13 of the strip 36.
  • the strip 36 would typically be arranged to be 13 mm below the rail head 13.
  • the flange 39 reaches the second sloping surface 27, gradually releasing the anvil block 20, which springs back under the influence of the leaf springs 22 to the position shown in figure 2.
  • the apparatus 10 is then ready to monitor the thickness of the flange of the next wheel. It will be appreciated that the parallel leaf springs 22 ensure that the datum surface 26 of the anvil plate 25 always remains parallel to the longitudinal axis of the rail 12.
  • the apparatus 10 only provides an indication of the thickness of the flange 39 at one position around its circumference, this is sufficient to indicate if the flange 39 is suffering excessive wear.
  • the apparatus 10 may be modified in various ways.
  • the datum surface 26 may also incorporate a wear-resistant strip similar to the strip 36 on the probe 32.
  • a recess to locate the probe 32 might instead be formed by a wedge fixed to the side 14 of the rail head 13, for example such a wedge might be of length 0.5 m, and of thickness from zero increasing to 5 mm.
  • a single such wedge would be sufficient, with the probe 32 just after the thick end of the wedge; if vehicles may approach from either direction then the probe 32 would be located in a gap between the thicker ends of two such wedges .
  • Such wedges may be attached using adhesive to the sides of the rail head 13.
  • a check rail is provided along the other side of the track in the vicinity of the apparatus 10 to ensure there is sufficient: clearance between the side 14 of the rail 12 and the flanges 39; in that case no recess is needed for the probe 32, as it lies next to the side of the rail 12 in its resting position.
  • the probe spring 32 would typically be of width 30 mm (parallel to the longitudinal axis of the rail) and of length between 50 mm and 100 mm, and of thickness between 1.0 mm and 2.0 mm.
  • the leaf springs 22 would typically be of width about 50 mm and of length about 300 mm, and of thickness about 1.0 mm.
  • the use of spring structures in each case has benefits in avoiding any bearings, which may introduce measurement errors .
  • strain gauges in the leaf springs 22.
  • the signals from these strain gauges may be interpreted to indicate the inter-flange spacing for each wheelset .
  • each probe 43 and 44 carries an electronic strain gauge (not shown) , and near its top is attached a wear-resistant strip of ceramic (not shown) that defines its datum position.
  • the lower end part of the outer probe 44 may be clamped between, two plates 48, the plates 48 and the probe 44 each defining an oval aperture 49 in which is an eccentric cam 50. These components are secured by a bolt 52. With the bolt 52 slack, rotation of the cam 50 allows the height of the probe 44 to be adjusted; the bolt 52 is then tightened. It will be appreciated that such adjustment is not required on the inner probe 43, as it contacts a part of the wheel profile that is substantially vertical .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

L'invention porte sur des boudins de roues d'un véhicule de chemin de fer qui sont soumis à un contrôle d'usure excessive faisant intervenir une masselotte (20) qui repose sur des lames de ressort (22) adjacentes à l'intérieur (14) du champignon de rail (13). On prévoit une sonde (25) au-dessus de la masselotte (20) de manière que le boudin de roue (42) pousse la masselotte (20) et l'écarte du rail (12). Ainsi, la position adjacente de la masselotte par rapport à chaque rail d'une voie dans la même position de voie permet la surveillance de l'espacement inter-boudin pour chaque ensemble de roues. Une telle masselotte (20) peut également porter une sonde externe (32) qui est tirée et entre en contact avec l'extérieur du boudin (42), au moins une sonde (32) étant une bande flexible et fournissant des signaux indiquant la séparation des sondes (32 et 25), ce qui permet d'indiquer l'épaisseur du boudin. Lorsque la roue est absente, la sonde externe (32) peut être placée dans un évidement (30) sur le côté du champignon de rail (13). Un tel appareil peut être installé dans un dépôt de manière que chaque ensemble de roues de chaque train puisse être contrôlé à des intervalles fréquents.
PCT/GB2002/002849 2001-06-30 2002-06-24 Surveillance en fonctionnement d'un boudin de roue WO2003004334A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0322672A GB2392726B (en) 2001-06-30 2002-06-24 Wheel flange monitoring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0116121A GB0116121D0 (en) 2001-06-30 2001-06-30 Wheel flange monitoring
GB0116121.5 2001-06-30

Publications (1)

Publication Number Publication Date
WO2003004334A1 true WO2003004334A1 (fr) 2003-01-16

Family

ID=9917758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/002849 WO2003004334A1 (fr) 2001-06-30 2002-06-24 Surveillance en fonctionnement d'un boudin de roue

Country Status (2)

Country Link
GB (2) GB0116121D0 (fr)
WO (1) WO2003004334A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2480711C2 (ru) * 2011-05-20 2013-04-27 Государственное образовательное учреждение высшего профессионального образования "Сибирский государственный университет путей сообщения" (СГУПС) Способ обнаружения дефектов поверхности катания колес железнодорожных транспортных средств в движении
US10222278B2 (en) 2016-02-25 2019-03-05 Massachusetts Institute Of Technology Directional force sensing element and system
CN116495026A (zh) * 2023-06-19 2023-07-28 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其***

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2733939C2 (ru) * 2018-05-15 2020-10-08 Акционерное общество "Научно-внедренческий центр "Вагоны" (АО "НВЦ "Вагоны") Способ оценивания состояния рессорного подвешивания тележек подвижного состава и устройство для его осуществления
RU2708693C1 (ru) * 2019-02-08 2019-12-11 Акционерное общество «Научно-внедренческий центр «Вагоны» (АО «НВЦ «Вагоны») Устройство и способ обнаружения дефектов колес железнодорожных транспортных средств в движении
CN109975041A (zh) * 2019-04-09 2019-07-05 唐山百川智能机器股份有限公司 用于固定式架车机的车轮到位检测机构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188464A (en) * 1962-07-09 1965-06-08 Marion W Gieskieng Railway wheel defect detector
US3474542A (en) * 1966-05-20 1969-10-28 Joseph L Walton Wheel gauge detector system
DD144740A1 (de) * 1979-07-06 1980-11-05 Manfred Staeck Vorrichtung zur verschleissermittlung an radreifen von schienenfahrzeuge
US4407072A (en) * 1981-11-13 1983-10-04 Southern Railway Company Thin flange and loose wheel detection system
DD289017A5 (de) * 1989-11-10 1991-04-18 Veb Braunkohlenwerk Glueckauf,De Spurkranzmessgeraet
JPH0719850A (ja) * 1993-07-06 1995-01-20 Railway Technical Res Inst 車輪の寸法測定装置
RO115758B1 (ro) * 1997-12-23 2000-05-30 Traian Taran Metoda si instalatie pentru masurarea automata, in mers, a osiilor montate ale vehiculelor pe sine
DE19943744A1 (de) * 1999-09-02 2001-03-22 Wolfgang Spruch Verfahren und Vorrichtung zur Radsatzprüfung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188464A (en) * 1962-07-09 1965-06-08 Marion W Gieskieng Railway wheel defect detector
US3474542A (en) * 1966-05-20 1969-10-28 Joseph L Walton Wheel gauge detector system
DD144740A1 (de) * 1979-07-06 1980-11-05 Manfred Staeck Vorrichtung zur verschleissermittlung an radreifen von schienenfahrzeuge
US4407072A (en) * 1981-11-13 1983-10-04 Southern Railway Company Thin flange and loose wheel detection system
DD289017A5 (de) * 1989-11-10 1991-04-18 Veb Braunkohlenwerk Glueckauf,De Spurkranzmessgeraet
JPH0719850A (ja) * 1993-07-06 1995-01-20 Railway Technical Res Inst 車輪の寸法測定装置
RO115758B1 (ro) * 1997-12-23 2000-05-30 Traian Taran Metoda si instalatie pentru masurarea automata, in mers, a osiilor montate ale vehiculelor pe sine
DE19943744A1 (de) * 1999-09-02 2001-03-22 Wolfgang Spruch Verfahren und Vorrichtung zur Radsatzprüfung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2480711C2 (ru) * 2011-05-20 2013-04-27 Государственное образовательное учреждение высшего профессионального образования "Сибирский государственный университет путей сообщения" (СГУПС) Способ обнаружения дефектов поверхности катания колес железнодорожных транспортных средств в движении
US10222278B2 (en) 2016-02-25 2019-03-05 Massachusetts Institute Of Technology Directional force sensing element and system
CN116495026A (zh) * 2023-06-19 2023-07-28 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其***
CN116495026B (zh) * 2023-06-19 2023-08-29 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其***

Also Published As

Publication number Publication date
GB0322672D0 (en) 2003-10-29
GB2392726B (en) 2004-06-16
GB0116121D0 (en) 2001-08-22
GB2392726A (en) 2004-03-10

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