EP0330842B1 - Dispositif pour le reprofilage d'une voie ferrée - Google Patents

Dispositif pour le reprofilage d'une voie ferrée Download PDF

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Publication number
EP0330842B1
EP0330842B1 EP89101522A EP89101522A EP0330842B1 EP 0330842 B1 EP0330842 B1 EP 0330842B1 EP 89101522 A EP89101522 A EP 89101522A EP 89101522 A EP89101522 A EP 89101522A EP 0330842 B1 EP0330842 B1 EP 0330842B1
Authority
EP
European Patent Office
Prior art keywords
grinding
track
rail
grinding unit
fact
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
EP89101522A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0330842A1 (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
Original Assignee
Speno International SA
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 Speno International SA filed Critical Speno International SA
Priority to AT89101522T priority Critical patent/ATE70101T1/de
Publication of EP0330842A1 publication Critical patent/EP0330842A1/fr
Application granted granted Critical
Publication of EP0330842B1 publication Critical patent/EP0330842B1/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
    • 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

  • the present invention relates to the rectification of the rails of a railroad track by grinding.
  • a device for reprofiling the fungus of at least one rail comprising a support carrying at least one grinding unit, pivotally mounted about an axis parallel to the axis longitudinal of the rail, having at least one grinding wheel driven in rotation by a motor and means of axial displacement of this grinding wheel to apply it against a generator of the rail head and thus compensating for its wear.
  • This known device also includes means for moving the pivot axis of the grinding unit, parallel to itself, in a direction perpendicular to the longitudinal axis of the rail.
  • a problem which arises for rail reprofiling machines is to be able, with the same grinding wheel, to grind both the inside face and the fillet, the tread table as the outside face and fillet of the rail. This is especially essential when preparing rails for the railing. With existing machines, this can only be done with long manual adjustments and bulky grinding units, their axial stroke, parallel to the axis of rotation of the grinding wheel, having to be large. Finally, these large axial strokes affect the precision of grinding.
  • Patent EP-0.145.919 describes a machine in which the grinding wheel (s) can pivot by a large angle, of about 180 °, that is to say by a much greater angle than on existing machines, while avoiding that from its pivoting the grinding wheel does not conflict with the obstacles it could meet on the way, such as the fishplates, lag screws, etc.
  • a change in the inclination of the grinding wheel is prevented from causing a significant correction of its axial position, parallel to its axis of rotation, to bring it back into contact with the rail.
  • the grinding units are mounted on carriages or chassis suspended under a railway vehicle and rest on one of the rails by guide rollers. Therefore the reference grinding plane is defined by the running surface of the working rail and not by the track plane.
  • the plane of the tread table thereof is modified so that the reprofiling of the rail is carried out on the basis of an imprecise reference plane.
  • pivoting grinding units comprising a motor driving two rotating grinding wheels, the height of these units requires a large available space under the rail vehicle and it becomes difficult to accommodate trolleys under it. guidance.
  • the present invention aims to remedy these drawbacks and relates to a device for reprofiling the head of at least one rail track
  • a device for reprofiling the head of at least one rail track comprising a support carrying at least one grinding unit, pivotally mounted about a parallel axis to the longitudinal axis of the rail, having at least one motor driving in rotation at least one grinding wheel and means of displacement in height of this grinding unit relative to the support and in translation of the pivot axis of the grinding in a direction perpendicular to the longitudinal axis of the rail; this grinding unit further comprising means for moving the grinding wheel to apply it against the rail;
  • the support is constituted by the chassis of a railway vehicle provided at one of its ends with at least two wheels each resting on one of the rows of rails of the track and articulated around at least one axis parallel to the longitudinal axis of the track at its other end on a rigid frame provided with at least two wheels each resting on one of the rows of rails of the track, this chassis being guided by the track and
  • the device for reprofiling the head of at least one rail of a railroad track comprises a support carrying at least one grinding unit.
  • This grinding unit is pivotally mounted about an axis parallel to the longitudinal axis of the rail and has at least one motor driving at least one grinding wheel in rotation.
  • the device also comprises means for moving the grinding unit in height relative to the support and for translating the pivot axis of the grinding unit in a direction perpendicular to the longitudinal axis of the rail.
  • the grinding unit also includes means for moving the grinding wheel to apply it against the rail to be ground.
  • FIG. 1 schematically illustrates the support of the grinding units which is constituted by the chassis 1 of a rail vehicle (not shown).
  • This chassis is provided at one of its ends with at least two wheels 2 each resting on one of the lines R1, R2 of rails of the track.
  • the usual suspensions are provided, however this chassis has systems for blocking these suspensions to make it completely rigid and secured to its wheels 2 during the grinding work.
  • the other end of the chassis is articulated here around an axis 3 parallel to the plane of the track on a rigid frame 4 and provided with at least two wheels 5 each resting on a line R1, R2 of rails.
  • suspensions can be provided for walking up and down the vehicle, for its movement at high speed from one grinding site to another. In this case blocking systems, canceling the effect of these suspensions are provided to make the frame rigid and integral with the wheels 5 during the grinding work.
  • the ball joint 3 is located in the longitudinal plane of symmetry of the chassis 1.
  • this grinding device is that the support for the grinding units is directly constituted by the chassis of a railway vehicle from which the suspension can be blocked, this chassis resting at three points, the two wheels 2 and l 'intermediate of axis 3, on the track. In this way this chassis is always strictly parallel to the plane of the track. This is important because the reference base for grinding is formed by a plane parallel to the track plane and no longer as in current devices and systems by a horizontal plane tangent to the running surface of a single rail. It is thus possible to automatically take into account the position of installation of the rail, which is impossible with existing systems.
  • the reference base for grinding is the same for the grinding units working on the two rows of rails R1 and R2 which is not the case in existing devices where the grinding units are controlled as a function of a reference determined only by the line of rails R1 or R2 on which they work.
  • Another advantage of this configuration lies in the elimination of the grinding carriages which were arranged under the carrying vehicles and towed by them. Indeed, modern grinding units, and in particular those comprising two grinding wheels driven by a single motor, are bulky and can only be difficult to mount on trolleys before themselves finding a place under the carrier vehicle. The removal of the grinding trolleys frees up a lot of space under the vehicle and therefore allows large grinding units to be accommodated there.
  • FIG. 2 we see the support 1 formed by the chassis of a rail vehicle resting on the track through the wheels 2 and the suspension 6.
  • a cylinder 7 connects the bearing 8 of the axis of the wheel 2 to the frame 1 and makes it possible to fix the distance separating this axis from the frame and therefore to block or remove the suspension 6.
  • the right end of the frame is articulated by a ball joint 3 on the end of a frame identical to the first and constituting the frame 2 of the adjacent railway vehicle.
  • This particular arrangement makes it possible to limit the lateral clearance of the layer grinding units.
  • Each grinding unit consisting of an electric motor 9 whose motor shaft 10, emerging on either side of the motor casing 9, is provided at each of its ends with a grinding wheel 11, 12 which it drives in rotation. These grindstones 11, 12 can be identical or different.
  • the motor 9 is integral with a caliper 13, the wings of which are connected by two guide rods 14 (FIG. 4) sliding in the body 15 of a hydraulic cylinder, the piston 16 of which is connected to the caliper 13.
  • the body 15 and therefore the entire grinding unit is mounted on a frame 17 so as to pivot around an axis xx parallel to the axis of the rail R1 using a rotary table of known construction.
  • each grinding unit is rotatably mounted using a turntable is connected to the chassis 1 of the rail vehicle by means of displacement in height, for example a screw 18 driven by a motor 19, this screw being pivoted idly in the frame 1 and being engaged with a nut 20 secured to the chassis 1.
  • This frame 17 is also connected (FIG. 3) to the chassis 1 by means of translation of the pivot axis of the grinding unit perpendicular to the longitudinal axes of the rails R1, R2.
  • a screw 21 is pivoted at its ends on the chassis 1 and is rotated by a motor 22. This screw 21 is engaged with a nut 23 secured to the nut 20.
  • Associated with the displacement means 14, 16 of the grinding wheel 11 are provided means for measuring the distance separating the working surface T of the grinding wheel from the center of the rotary table, ie from the pivot axis xx of the grinding unit.
  • Any position measuring device can be used such as for example a variable potentiometer 25 secured to the body 15 of the grinding unit, the cursor 26 of which is secured to the caliper 13 carrying the motor 9 driving the wheel (s).
  • the grinding unit control device comprises a microprocessor 27 receiving signals representative of the type of grinding wheel used, the path traveled, the location and the nature of the obstacles present along the track and the grinding angle , that is to say the generator of the rail head on which the grinding wheel must intervene.
  • This microprocessor 27 then delivers, as a function of this information, a signal there controlling the motor 19 defining the height of the axis x-x of pivoting of the grinding unit relative to the chassis 1; a signal X controlling the motor 22 defining the transverse position of the pivot axis x-x of the grinding unit with respect to either the envisaged rail file or the longitudinal axis of the track; and finally a signal ⁇ controlling the motor 24 defining the angular position of the axis of rotation of the grinding wheel relative to the reference plane.
  • this control device it is possible to have the axis xx of pivoting of the grinding wheel describe paths A or B for example, see FIGS. 7 and 8, depending on the type of grinding wheel used to allow this axis xx to be positioned in function of the generator of the rail to be machined and the plane of the track as well as controlling the inclination ⁇ of the axis of rotation of the grinding wheel or more generally the direction of movement of this grinding wheel obtained by the jack 15, 16 .
  • this microprocessor 27 makes it possible to control a lifting of the grinding unit or a change of the angle ⁇ to avoid an obstacle as well as to modify the paths A, B to take account of the wear of the grinding wheel as a function of the road traveled.
  • the pressure of the grinding wheel against the rail to be reprofiled is determined by the jack 15, 16 controlled by a servovalve 28 making it possible to supply one or the other of the chambers 29, 30 by a flow of pressurized fluid Pr or the put to exhaust E.
  • This servovalve 28 is controlled by a microprocessor 31 receiving indications relating to the grinding power P, to the maximum authorized displacement S of the grinding wheel; a signal from the microprocessor 27 weighting or modulating the other information as a function of the obstacles, the path traveled, the grinding angle ⁇ and the type of grinding wheel used.
  • microprocessor 31 still receives signals representative of the distance u from the axis xx of pivoting of the grinding wheel to the working surface T of this grinding wheel as well as the effective grinding power t delivered by an I / P converter supplied by the intensity of the grinding motor 9.
  • microprocessors 27 and 31 can simultaneously control all the movements and displacements of several grinding units.
  • FIGS. 9 and 10 illustrate the paths traveled C, D by the pivot axis x-x of the grinding unit, controlled by the microprocessor 27, when the grinding wheels used are a grinding wheel of shape 32 respectively a peripheral grinding wheel 33.
  • the angle of inclination ⁇ being defined, depending on the working generator, it is introduced manually or automatic in the microprocessor 27.
  • the working cylinder 15, 16 controlled by the servo-valve 28 itself controlled by the microprocessor 31 moves the grinding unit to bring the grinding wheel into contact with the rail R1 and then adjusts the grinding force P. If a distance maximum of the working face T of the grinding wheel 11 relative to the pivot axis xx of the grinding unit is prescribed, the maximum stroke of the jack 15, 16 is also determined by this microprocessor 31.
  • a linear sensor measures the displacement U of the grinding wheel relative to its support, the turntable, and therefore makes it possible to control its relative position.
  • the reference plane being the rigid chassis of the vehicle whose position in space is defined by three points, all the positioning parameters of all the grinding units are referenced to a base parallel to the plane of the track.
  • the coordinates ( ⁇ , X, Y) being defined and the grinding unit positioned accordingly, the actuator 15, 16 controlled by the servo -valve 28 associated with the regulation loop constituted by the I / P converter, and the microprocessor 31 allows grinding at constant power.
  • the dimensions Vi representative of (Yi + Ui) designate the distances from the working faces Ti of the grinding wheels relative to the reference plane defined by the chassis 1 of the vehicle.
  • the highest grinding wheel 113 defines the upper grinding limit
  • the threshold S defines the lower limit below which it has been decided to no longer grind the rail.
  • This upper limit Vi and this threshold S define the corridor in which all the grinding units are authorized to move to rectify the rail.
  • the microprocessor 31 controlling the servo-valve 28 taking into account the value of the threshold S the units cannot fall below the defined lower limit and only the crests of the corrugations are ground.
  • each queue being independent, it is possible to grind one queue with a certain threshold and the other with another threshold or with the same threshold depending on the case.
  • a device for reprofiling at least one head of a line of rails of a railway track has thus been produced which automatically controls the positioning of each of the grinding units relative to a reference base parallel to the plane of the track and which also fully automatically controls the grinding pressure and if necessary the maximum grinding depth in order to avoid grinding the hollows of long waves.
  • the means of displacement in height and of translation of the pivot axis xx of the grinding units are produced differently.
  • the grinding unit with its means for moving the grinding wheel actuated by the jack 15, 16 and the rotary table actuated by its motor 24 is slidably mounted along an arm 34 pivoted at 35 on the chassis 1.
  • a motor 36 makes it possible to vary the distance R separating the pivot axis xx of the grinding unit from the pivot axis 35 of the arm.
  • Another motor 37 makes it possible to angularly position this arm 34 at an angle ⁇ relative to the chassis, and therefore to the reference plane.
  • the microprocessor 27 of the control device would calculate signals corresponding to angle ⁇ and to the distance R in place of the coordinates X, Y as previously.
  • this reprofiling device can be equipped with any type of grinding wheel or even with several different types of grinding wheel, lapidary, conical, peripheral and of any diameter.
  • Vehicles can be towed or self-propelled.
  • the fact of providing vehicles articulated to each other makes it possible to reduce the deflection in the curves.
  • the vacuum under the vehicles is entirely free to receive the grinding units since there is no longer any need for a guide carriage for these.
  • vehicles can be fitted with lateral guide rollers coming into contact with the internal faces of the rails.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Paper (AREA)
  • Railway Tracks (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP89101522A 1988-03-04 1989-01-30 Dispositif pour le reprofilage d'une voie ferrée Expired - Lifetime EP0330842B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89101522T ATE70101T1 (de) 1988-03-04 1989-01-30 Einrichtung zum reprofilieren eines gleises.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH817/88A CH675440A5 (nl) 1988-03-04 1988-03-04
CH817/88 1988-03-04

Publications (2)

Publication Number Publication Date
EP0330842A1 EP0330842A1 (fr) 1989-09-06
EP0330842B1 true EP0330842B1 (fr) 1991-12-04

Family

ID=4195886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101522A Expired - Lifetime EP0330842B1 (fr) 1988-03-04 1989-01-30 Dispositif pour le reprofilage d'une voie ferrée

Country Status (11)

Country Link
US (1) US4920701A (nl)
EP (1) EP0330842B1 (nl)
JP (1) JPH01312101A (nl)
AT (1) ATE70101T1 (nl)
AU (1) AU609947B2 (nl)
CA (1) CA1302710C (nl)
CH (1) CH675440A5 (nl)
DE (2) DE330842T1 (nl)
ES (1) ES2010165T3 (nl)
GR (1) GR890300181T1 (nl)
ZA (1) ZA891102B (nl)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678341A5 (nl) * 1989-03-02 1991-08-30 Speno International
CH680672A5 (nl) * 1989-08-28 1992-10-15 Speno International
CH680597A5 (nl) * 1989-08-28 1992-09-30 Speno International
CH680598A5 (nl) * 1989-08-28 1992-09-30 Speno International
CH685129A5 (fr) * 1991-03-01 1995-03-31 Speno International Dispositif pour le reprofilage des rails d'une voie ferrée.
AU2677092A (en) * 1991-10-15 1993-05-21 Renzo Alberti Device for reshaping railway rails
FR2696762B1 (fr) * 1992-10-14 1994-12-30 Geismar Anc Ets L Procédé de meulage de la jonction bout-à-bout par soudage notamment de deux rails et machine de meulage pour la mise en Óoeuvre de ce procédé.
CH689642A5 (fr) * 1994-02-18 1999-07-30 Speno International Installation pour le reprofilage des rails d'une voie ferrée.
CH689643A5 (fr) * 1994-02-18 1999-07-30 Speno International Installation pour le reprofilage des rails d'une voie ferrée.
US6033291A (en) * 1998-03-16 2000-03-07 Loram Maintenance Of Way, Inc. Offset rail grinding
CN1143917C (zh) * 1999-03-25 2004-03-31 维尔弗里德·舍夫 钢轨磨床中具有磨具的磨削组件的配置结构
DE20002815U1 (de) * 2000-02-16 2000-05-18 Robel Bahnbaumaschinen Gmbh Vorrichtung zum Schleifen von Schienen
JP2009215764A (ja) * 2008-03-10 2009-09-24 Railway Technical Res Inst レール削正装置、レール削正方法及びレール削正車
CN102596677A (zh) * 2009-10-13 2012-07-18 哈斯科公司 电池动力轨道研磨机
CA2801245C (en) 2010-06-04 2015-04-28 Csx Transportation Process and apparatus for rail restoration and rail manufacture using welding
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
JP6035229B2 (ja) * 2013-11-21 2016-11-30 公益財団法人鉄道総合技術研究所 レール削正台車およびレール削正方法
FR3025228B1 (fr) * 2014-09-03 2016-12-23 Robert Pouget Machine autonome de meulage des rails presentant des defauts d'usure ondulatoire verticale et laterale
CN110258212A (zh) * 2019-06-28 2019-09-20 苏州睿友智能装备有限公司 一种机器人化钢轨打磨装置
CN111254768A (zh) * 2019-09-06 2020-06-09 济南豪特创新管理咨询合伙企业(有限合伙) 钢轨焊接接头超声波金属表面处理方法

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CH463555A (fr) * 1967-08-08 1968-10-15 Speno Internat S A Machine ébavureuse de rails de chemin de fer en voie
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CH548488A (fr) * 1972-06-08 1974-04-30 Speno International Procede de rectification en voie d'une file de rails par meulage de sa surface de roulement et dispositif pour la mise en oeuvre de ce procede.
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CH666068A5 (fr) * 1983-11-16 1988-06-30 Speno International Dispositif pour le reprofilage en continu du champignon d'au moins un rail.
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US4785589A (en) * 1986-02-28 1988-11-22 Les Fils D'auguste Scheuchzer S.A. Process for measuring and grinding the profile of a rail head

Also Published As

Publication number Publication date
DE330842T1 (de) 1989-12-28
GR890300181T1 (en) 1989-06-22
JPH01312101A (ja) 1989-12-15
EP0330842A1 (fr) 1989-09-06
ZA891102B (en) 1989-10-25
CH675440A5 (nl) 1990-09-28
AU3093089A (en) 1989-09-07
ES2010165T3 (es) 1992-06-16
ES2010165A4 (es) 1989-11-01
CA1302710C (en) 1992-06-09
ATE70101T1 (de) 1991-12-15
US4920701A (en) 1990-05-01
DE68900484D1 (de) 1992-01-16
AU609947B2 (en) 1991-05-09

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