EP0415105B1 - Procédé de reprofilage des rails d'une voie ferrée et véhicule ferroviaire pour sa mise en oeuvre - Google Patents

Procédé de reprofilage des rails d'une voie ferrée et véhicule ferroviaire pour sa mise en oeuvre Download PDF

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Publication number
EP0415105B1
EP0415105B1 EP90114681A EP90114681A EP0415105B1 EP 0415105 B1 EP0415105 B1 EP 0415105B1 EP 90114681 A EP90114681 A EP 90114681A EP 90114681 A EP90114681 A EP 90114681A EP 0415105 B1 EP0415105 B1 EP 0415105B1
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EP
European Patent Office
Prior art keywords
rails
profile
rail
reprofiling
track
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
EP90114681A
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German (de)
English (en)
French (fr)
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EP0415105A1 (fr
Inventor
Romolo Panetti
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.)
Speno International SA
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Speno International SA
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Filing date
Publication date
Application filed by Speno International SA filed Critical Speno International SA
Priority to AT90114681T priority Critical patent/ATE82341T1/de
Publication of EP0415105A1 publication Critical patent/EP0415105A1/fr
Application granted granted Critical
Publication of EP0415105B1 publication Critical patent/EP0415105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E01B5/14—Rails for special parts of the track, e.g. for curves
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

Definitions

  • each axle of a railway vehicle carries at each of its ends a wheel rigidly mounted thereon.
  • the profile wheel bandage is slightly tapered, tilted outward from the track.
  • the rails are not mounted perpendicular to the sleepers, but their axes of symmetry are inclined at an angle generally equal to 1/20 towards the inside of the track.
  • This particular arrangement allows, in particular on the rectilinear parts of the track or in a curvature with a large radius, to achieve, due to the icon formed by the wheels and the inclination of the rails, a self-centering effect on the axle ensuring the stability of moving convoys.
  • This self-centering phenonene works well when the track is straight or undergoes only long radius curves. This is different in the portions of tracks with a medium or tight radius of curvature, even for new rails not deformed by wear due to the passage of the convoys, because the difference in the radii of the wheels at their point of contact with the rails does not is not always sufficient to compensate for the difference in length between the arc of the outer rail queue and that of the inner rail queue.
  • the axle then tends to move towards the outside of the curve, the outside wheel seeks to mount on the rail which not only causes heavy wear by friction of the wheel flange against the inner flank of the rail head, deforming both the wheel and the rail, but can be dangerous for the rolling safety of the convoy.
  • the modification of the transverse profile of one of the rails only is sufficient to obtain the desired effect.
  • the interior rail will keep a normal transverse profile, as on the sections of track in alignment, and the exterior rail alone will present a modified profile, that is to say clear on the outside.
  • the object of the present invention is to make possible the initial profiling and the reprofiling of the rails of a railroad track in an asymmetrical controlled manner in the curves while overcoming the aforementioned drawbacks.
  • the subject of the present invention is an automatic profiling and reprofiling process in the track of a rail track in a symmetrical or asymmetrical manner usable both in alignment as in curve and counter-curve which is distinguished by the characteristics listed in the claim 1, as well as a profiling and reprofiling machine for the implementation of this method.
  • the longitudinal profile and the transverse profile of the rail are measured for each file of rails of a railway track, these measured profiles of the two rails are compared to a single reference profile corresponding to the type of rail envisaged, then using the data obtained by these comparisons, the position and the pressure of the grinding tools are selected and / or controlled for each file of rails in order to obtain in one or more passes the desired reprofiling of each of the two rails.
  • the present method consists in comparing the measured profiles of each of the rails with reference profiles selected according to the needs, rectifications of a straight portion, curvilinear of medium or strong curvature, of a railway track and type of rails used, in order to be able to profile or reprofile the rails of a queue differently from those of the other queue or in the same way depending on the circumstances.
  • At least two reference profiles are stored, generally several, then selected according to the track conditions; straight line, curve with large, medium or small radius of curvature, left or right, a reference profile for each of the rails.
  • FIG. 3 illustrates a basic reference profile b which is used for the reprofiling of a type of rails corresponding in the sections of straight track or whose radius of curvature is sufficiently large so that the phenomenon of traditional self-centering is preserved .
  • the measured longitudinal and transverse profiles of each rail file are compared individually to this same basic reference profile, this comparison determines in a known manner the rectification parameters of each of the rail files.
  • These parameters, defining the position, inclination and power of each tool relative to the corresponding rail can be stored for later use or used directly for reprofiling the rails.
  • asymmetric reference profile 2 (FIG. 5) is the mirror image with respect to the axis of symmetry of the rail of the asymmetrical reference profile 1, according to the present method, it is possible to store only one of the two reference profiles. asymmetrical 1 or 2 the other being the mirror image.
  • the present method therefore makes it possible to reprofile rails on the track asymmetrically or symmetrically as well in alignment as in curve and counter-curve and this for all types of rails.
  • the central position 3 of the switch corresponds to an aligned track and selects the basic reference profile for the two rows of rails (FIG. 3).
  • Position 4 corresponds to an average curve on the right and selects for the left rail file the asymmetric reference profile 1 (figure 4) and for the right rail file the basic reference profile (figure 3).
  • Position 5 of the switch corresponds to a tight right curve and selects for the two rows of rails the asymmetric reference profile 1 ( Figure 4).
  • this selection of the reference profile or profiles suitable for the reprofiling of a given section of track can be done in any other way, for example by a numeric or alphanumeric keyboard or even automatically for example according to the path traveled by the machine and / or by measuring the curvature of the track.
  • the tools will be controlled individually with a different delay depending on the path traveled by the vehicle so that the configuration change is made for each tool, individually at the same point T of the track corresponding to the transition point between the alignment and curve for example. Thus each tool will take its new position at this same point T of the track.
  • the railway machine or vehicle for the automatic reprofiling of the rails of a railway track can be generally similar to that described in the patents mentioned in the introduction, except that it includes chains for measuring the profiles of the rail. , comparison of these with a reference profile and selection and / or control of the adequate configuration of the tools in position, inclination and power, independent for each row of rails. It further comprises means for selecting, as a function of the route of the path, a pair of reference profiles from a plurality of reference profiles, one of the reference profiles being assigned to one of the chains and therefore to the 'one of the rail lines while the other reference profile is assigned to the other rail line.
  • a table defining the asymmetrical profile is thus created in Cartesian or polar coordinates as having for each generator of the basic profile a difference ⁇ determined with respect to the latter.
  • FIG. 7 illustrates the representation in solid line of a basic reference profile b , in dashed line a first asymmetrical reference profile 1 and in dotted line a second asymmetrical reference profile 1a whose asymmetry is more pronounced.
  • the two reference profiles 1 and 1a are provided for the reprofiling of curves on the right, their mirror images being used for the rectification of curves on the left.
  • FIG. 7a gives in the form of a table the Cartesian coordinates of the basic reference profile and of the two asymmetric reference profiles. These tables are stored and used to receive the reference profiles without manipulation error.
  • a table gives for example as illustrated the coordinates Xi; Yi of the basic reference profile for different points thereof as well as the deviations ⁇ y1; ⁇ y1a between this basic profile b and the asymmetric reference profiles 1 and 1a .
  • a variant of the method is specially adapted for reprofiling the rails of the transition curves between an alignment and the minimum radius R min. of the full curve.
  • the reference profiles of the two rows of rails of the base profile must be passed gradually or in stages in alignment with the asymmetrical profiles selected for the full curve.
  • the transition from the full curve of radius R1 to the full curve of radius R2 takes place via the two transition curves L1 and L2 which are divided into 7 sections 11 to 17.
  • the pairs of reference profiles are gradually asymmetrical.
  • the pair of reference profiles is that of the alignment, i.e. the basic reference profile.
  • the couples are progressively asymmetrical, but in the opposite direction to the previous one. It is practically impossible to execute a precise asymmetrical reprofiling of the rails of such a track section with conventional machines.
  • the pairs of reference profiles are preselected advantageously by means of the device according to FIG. 9 comprising a switch for the right or left direction of the curve and a decade of preselections for recalling the pairs of stored reference profiles.
  • Figure 11 illustrates, side view, a machine for the grinding of the rails of a railroad track formed by a self-propelled vehicle 3 provided with grinding carriages 4.
  • These grinding carriages 4 are provided with rollers resting in position working, on the track rails and are connected to the vehicle 3 on the one hand by a drawbar 5 and, on the other hand, by lifting cylinders 6.
  • These cylinders 6 allow the lifting of the carriage for walking vehicle 3 at high speed for its movement from one grinding site to another.
  • Each grinding carriage 4 carries several grinding units per line of rails, each of these grinding units comprises a motor which drives a grinding wheel 8 in rotation.
  • each grinding unit 7, 8 is movable along its longitudinal axis XX relative to the carriage 4.
  • the motor 7 carries the chamber 9 of a double-acting cylinder
  • the piston 9a is integral with a rod, passing through the chamber 9, integral with a support 10.
  • This support 10 is articulated on the carriage 4 around an axis YY, parallel to the longitudinal axis of the rail 11.
  • the angular position grinding units is determined by an angle sensor 12 secured to the support 10 and controlled by a double-acting cylinder 13 connecting this support 10 to the carriage 4.
  • each grinding unit can be moved angularly around an axis parallel to the longitudinal axis of the rail which is associated with it and perpendicular to this longitudinal axis which makes it possible to approach and apply the grinding wheel 8 against the rail 11 with a determined force and to move it away from the rail.
  • the vehicle 3 is also equipped with measuring carriages 14 rolling along each rail equipped with a device 15 for measuring the longitudinal undulations of the surface of the rail 11 and with a device for measuring the transverse profile 16 of the rail head.
  • the carriages 14 are obviously towed by the vehicle 3 for example using the drawbar 17.
  • the machine described also includes a device for processing the data delivered by the distance traveled sensor 5, the sensor 15 for the amplitude of the longitudinal undulations of the rail and the sensor 16 for the transverse profile of the rail, and for controlling the reprofiling units 7, 8 both in position and in power to reprofile the rail 11 so as to give it a longitudinal profile and a transverse profile identical to, or close to, the reference profile assigned to it.
  • This device for processing the measurement signals and for controlling the reprofiling units is very schematically illustrated in FIGS. 15 and 16. It comprises, for each row of rails, three analog-digital converters 20, 21, 22 associated respectively with the sensors 5, 15 and 16, transforming the analog measurement signals delivered by these sensors into digital signals which are delivered to a microprocessor 23.
  • This microprocessor 23 also receives information which is either entered manually by an alpha-numeric keyboard 24 relating for example to the type of machine used, to the number of grinding units per line of rails which it comprises, and to the capacity of metal removal from the grinding wheels used depending on the power of the motors driving these grindstones.
  • This processing and control device also includes a memory 25 of the pairs of reference profiles available, namely a basic reference profile for grinding in alignment and several asymmetrical reference profiles for grinding in curves, solid counter-curves or transition.
  • a manual or automatic selector 26 makes it possible, depending on the portion of track to be reprofiled, to deliver to each of the microprocessors 23 one of the reference profiles of a selected torque and to assign it to a determined rail.
  • FIG. 15 illustrates the control loop of a reprofiling unit, the unit No 1 of rail 11 right of the track.
  • the analog position signal PO1 is compared in a comparator 29 to the output signal from an angle sensor 30 indicating the angular position of the support 10, and therefore of the grinding unit relative to the axis YY parallel to the longitudinal axis of the rail. If there is no equality between the signal PO1 and that delivered by the angle sensor 30, the comparator delivers a position correction signal ⁇ po, positive or negative, controlling via an amplifier 31 a servo-valve 32 for controlling the double-acting cylinder 13 ensuring positioning angle of the grinding unit 7, 8.
  • the analog power signal Pu1 is compared using the comparator 33 to a signal proportional to the instantaneous power of the motor 7 and, in the event of an inequality of these signals, the comparator 33 delivers a position correction signal ⁇ Pu, commanding , by means of an amplifier 34 a servo-valve 35 for controlling the double-acting cylinder 9, 9a modifying the pressure of application of the grinding wheel 8 against the rail 11.
  • the machine described for the implementation of the asymmetrical reprofiling process comprises for each file of rails a chain comprising at least means for measuring the transverse profile of the rail but generally also the distance traveled and the longitudinal profile of the rail, undulations long or short wavelength; means for comparing this profile with a reference profile assigned to this rail; as well as control and / or selection means, from the data of this comparison, of a configuration in position and power of each tool or reprofiling unit associated with this rail.
  • the means for comparing the measured and reference profiles as well as the means for selecting the configurations, power position, of the tools are in the example illustrated grouped in the microprocessor 23.
  • this reprofiling machine comprises means 25 for memorizing at least one basic reference profile and at least one other reference profile, generally of several asymmetric reference profiles, for each basic profile; as well as means 26 for selecting a pair of reference profiles and assigning to each of the rows of rails one of the profiles of this pair.
  • the measurement of the short and long longitudinal waves of each rail can allow to the microprocessor 23 to determine reshaping modes, soft or aggressive, according to the amplitude of the undulations, and free or blocked, according to the wavelength of these undulations.
  • aggressive mode an overpower is added to the motors.
  • free mode each grinding unit is independent, for short wave grinding, while in blocked mode several grinding units are made integral so as to lengthen the reference base for long wave grinding.
  • the machine according to the invention always comprises two measuring chains, one for each row of rails, as well as two control chains one for each row of rails.
  • the machine working in both directions of travel it is equipped with two measuring carriages 14.
  • the front carriage serving to control the reprofiling operation and the rear carriage serving to control this operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
EP90114681A 1989-08-28 1990-07-31 Procédé de reprofilage des rails d'une voie ferrée et véhicule ferroviaire pour sa mise en oeuvre Expired - Lifetime EP0415105B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90114681T ATE82341T1 (de) 1989-08-28 1990-07-31 Verfahren zur profilerneuerung von eisenbahnschienen und schienenfahrzeug zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3116/89 1989-08-28
CH3116/89A CH680598A5 (hu) 1989-08-28 1989-08-28

Publications (2)

Publication Number Publication Date
EP0415105A1 EP0415105A1 (fr) 1991-03-06
EP0415105B1 true EP0415105B1 (fr) 1992-11-11

Family

ID=4248958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114681A Expired - Lifetime EP0415105B1 (fr) 1989-08-28 1990-07-31 Procédé de reprofilage des rails d'une voie ferrée et véhicule ferroviaire pour sa mise en oeuvre

Country Status (10)

Country Link
US (1) US5086591A (hu)
EP (1) EP0415105B1 (hu)
JP (1) JP2855288B2 (hu)
AT (1) ATE82341T1 (hu)
AU (1) AU628630B2 (hu)
CA (1) CA2022567A1 (hu)
CH (1) CH680598A5 (hu)
DE (2) DE69000459T2 (hu)
HK (1) HK1000470A1 (hu)
ZA (1) ZA906206B (hu)

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US5231799A (en) * 1988-07-22 1993-08-03 Zenith Electronics Corporation Rail following "Q"-height grinder
IT1239247B (it) * 1990-05-08 1993-09-28 Rotafer Macchina rettificatrice tangenziale, particolarmente per rotaie ferroviarie
CH685129A5 (fr) * 1991-03-01 1995-03-31 Speno International Dispositif pour le reprofilage des rails d'une voie ferrée.
DE4200945A1 (de) * 1992-01-16 1993-07-22 Benkler Ag Verfahren zur vermessung eines schienen- und gleisprofils und fahrwerk zur schienenbearbeitung
SE505669C2 (sv) * 1992-08-19 1997-09-29 Goeteborgs Spaarvaegar Ab Rälsslipningsfordon
US6033291A (en) * 1998-03-16 2000-03-07 Loram Maintenance Of Way, Inc. Offset rail grinding
JP2977807B1 (ja) * 1998-07-15 1999-11-15 システム精工株式会社 研磨方法および研磨装置
EP1163393B1 (de) * 1999-03-25 2004-10-27 Wilfried Scherf Anordnung von schleifmodulen mit schleifwerkzeugen in schienenschleifmaschinen
ATE450654T1 (de) * 2001-10-25 2009-12-15 Loram Maintenance Of Way Verfahren und vorrichtung zum ununterbrochenen schleifen von bahnübergangs- und hauptgleisen
US10308265B2 (en) 2006-03-20 2019-06-04 Ge Global Sourcing Llc Vehicle control system and method
US9733625B2 (en) 2006-03-20 2017-08-15 General Electric Company Trip optimization system and method for a train
US7594682B2 (en) * 2002-06-26 2009-09-29 General Electric Company Apparatus and method for controlled application of railway friction modifying agent
US7152888B2 (en) * 2002-06-26 2006-12-26 General Electric Company System and method for improved detection of locomotive friction modifying system component health and functionality
US6893058B2 (en) * 2002-10-18 2005-05-17 General Electric Company Railway train friction management and control system and method
US9950722B2 (en) 2003-01-06 2018-04-24 General Electric Company System and method for vehicle control
US9956974B2 (en) 2004-07-23 2018-05-01 General Electric Company Vehicle consist configuration control
US9828010B2 (en) 2006-03-20 2017-11-28 General Electric Company System, method and computer software code for determining a mission plan for a powered system using signal aspect information
US8914171B2 (en) 2012-11-21 2014-12-16 General Electric Company Route examining system and method
CN102275593B (zh) * 2010-06-11 2015-03-04 北京铁道工程机电技术研究所有限公司 一种高速动车组的地坑式架车机
AU2013299501B2 (en) 2012-08-10 2017-03-09 Ge Global Sourcing Llc Route examining system and method
US9702715B2 (en) 2012-10-17 2017-07-11 General Electric Company Distributed energy management system and method for a vehicle system
US9255913B2 (en) 2013-07-31 2016-02-09 General Electric Company System and method for acoustically identifying damaged sections of a route
WO2015061270A1 (en) * 2013-10-21 2015-04-30 Harsco Corporation Grinding motor and method of operating the same for rail applications
CN104652186B (zh) * 2015-02-16 2016-06-01 北京东风电器有限公司 一种地铁钢轨打磨列车道岔打磨控制方法
JP2019044434A (ja) * 2017-08-31 2019-03-22 株式会社ディスコ 鉄道レール修正車両
EA039267B1 (ru) * 2021-02-23 2021-12-24 Геннадий Викторович Величко Переходной участок закругления колеи рельсовой дороги
CN114888691B (zh) * 2022-06-10 2023-06-09 肇庆高峰机械科技有限公司 一种数控往复式垂直度磨床及其工作方法
CN115305753B (zh) * 2022-10-12 2023-02-07 中国铁建高新装备股份有限公司 一种钢轨廓形快速预测方法、系统
CN115323845B (zh) * 2022-10-14 2023-02-03 中国铁建高新装备股份有限公司 轨道打磨控制方法、装置、轨道打磨车和电子设备
CN117943939B (zh) * 2024-03-27 2024-06-18 西南交通大学 基于被动式削峰打磨的试验装置

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CH675440A5 (hu) * 1988-03-04 1990-09-28 Speno International

Also Published As

Publication number Publication date
JPH03107002A (ja) 1991-05-07
CH680598A5 (hu) 1992-09-30
US5086591A (en) 1992-02-11
EP0415105A1 (fr) 1991-03-06
JP2855288B2 (ja) 1999-02-10
DE69000459D1 (de) 1992-12-17
ZA906206B (en) 1991-05-29
CA2022567A1 (en) 1991-03-01
DE69000459T2 (de) 1993-05-06
AU628630B2 (en) 1992-09-17
AU6131190A (en) 1991-02-28
ATE82341T1 (de) 1992-11-15
DE415105T1 (de) 1991-07-04
HK1000470A1 (en) 1998-03-27

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