EP1301663A1 - Procede de reprofilage d'au moins la surface d'un rail et dispositif y relatif - Google Patents

Procede de reprofilage d'au moins la surface d'un rail et dispositif y relatif

Info

Publication number
EP1301663A1
EP1301663A1 EP01984254A EP01984254A EP1301663A1 EP 1301663 A1 EP1301663 A1 EP 1301663A1 EP 01984254 A EP01984254 A EP 01984254A EP 01984254 A EP01984254 A EP 01984254A EP 1301663 A1 EP1301663 A1 EP 1301663A1
Authority
EP
European Patent Office
Prior art keywords
rail
grinding wheel
milling cutter
milling
grinding
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.)
Granted
Application number
EP01984254A
Other languages
German (de)
English (en)
Other versions
EP1301663B1 (fr
Inventor
Johann Knoll
Walter Neubauer
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.)
Linsinger Maschinenbau GmbH
Original Assignee
Linsinger Maschinenbau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3687716&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1301663(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linsinger Maschinenbau GmbH filed Critical Linsinger Maschinenbau GmbH
Publication of EP1301663A1 publication Critical patent/EP1301663A1/fr
Application granted granted Critical
Publication of EP1301663B1 publication Critical patent/EP1301663B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • E01B31/13—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by milling

Definitions

  • the invention relates to a method for reprofiling at least the travel mirror of a rail, preferably the convex part of the rail head cross-sectional profile of a rail, in particular a railroad track, by peripheral milling.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a method of the type described above and a rail profile milling cutter for carrying out the method with which a ripple corresponding to the regulations of the railway operator or railway company alone can be achieved by a milling operation Longitudinal direction of the rails as well as in the cross-sectional profile can be achieved, so that - for lower requirements, such as lower speeds of the railroad - alone with one milling process and for higher speeds with a subsequent grinding process can be found.
  • This object is achieved in a method of the type described in the introduction in that, in order to produce the desired profile, more than five, preferably nine, milling tracks lying next to one another in the longitudinal direction of the rail are formed by a single circumferential milling process, and that, if appropriate, subsequently grinding at least the traveling mirror, preferably of the convex part of the rail head cross-sectional profile having the driving mirror.
  • the milling process according to the invention is followed by a grinding process, which is characterized in that the milled rail is ground, preferably immediately after milling in the same, to reduce or equalize the waviness running in the longitudinal direction of the tracks and, if necessary, to smooth or level the polyline Pass, the axis of the grinding wheel enclosing an angle deviating from 0 ° with a plane perpendicular to the longitudinal direction of the rail.
  • Preferred variants for this grinding are described in subclaims 6 to 24.
  • a rail profile milling cutter according to the invention for milling at least the traveling mirror of a rail, in particular a railroad track, preferably for milling the convex part of a rail head cross-sectional profile of a rail, for carrying out the method according to one or more of claims 1 to 24, is characterized in that the milling cutter is designed as a sandwich cutter with a plurality of discs each provided with indexable inserts on the circumference.
  • a device for generating a relative movement between the rail and the milling cutter and the grinding wheel which may be present,
  • FIG. 1 illustrating a side view of an apparatus for carrying out the method according to the invention
  • FIG. 2 illustrating a schematic plan view in the direction of arrow II in FIG. 1.
  • Fig. 3 shows a variant of the device for performing the method according to the invention.
  • Fig. 4 shows the cross section through a railroad track in different states of the rail.
  • Fig. 5 shows the engagement of the grinding wheel according to the inventive method on a railroad track, which is illustrated in cross section.
  • FIG. 6 shows a partial section through the milling cutter in the assembled state
  • FIG. 7 shows the individual parts of the milling cutter in an exploded view
  • FIG. 8 shows a side view of a disk of the milling cutter in the direction of the arrow VIII of Fig. 7 illustrate.
  • the rail head 3 seated on the rail web 2 has a convex cross-sectional part 5, which has the driving mirror 4, on which the running wheel of a rail vehicle runs, which is illustrated by line A in the new state.
  • this convex part 5 of the cross section of the rail head 3 is given the shape illustrated by the line B.
  • the rail 1 is reworked so that the convex part 5 of the rail head 3, but at least the traveling mirror 4, in turn illustrates the original state, that is to say the original cross-sectional shape the line C - reached as close as possible.
  • FIG. 1 and 2 show a device according to the invention, which is arranged in a stationary manner and on which the rail 1 to be machined is moved past.
  • Fig. 3 shows a device according to the invention, which is installed in a mobile device, such as a locomotive, so that rails that have already been laid can be processed with this device.
  • the device according to the invention is duplicated, so that both the left and the right rail can be finished with one pass.
  • the mutually identical parts and devices of the stationary device and the mobile device are provided with the same reference numerals.
  • the rail profile cutter 8 is designed as a circumferential cutter and is described in detail below.
  • This milling cutter 8 can be driven via a drive motor 9 and a gear 10, the direction of rotation being selected such that the rail 1 is machined in a synchronous milling process.
  • a grinding unit 11 is provided directly adjacent to the milling unit 7, the grinding wheel 12 of which can be driven by means of a drive 13, etc. preferably also in the direction of rotation as the milling cutter 8, so that a synchronous grinding on the rail 1 is carried out.
  • the grinding wheel 12 is equipped with a grinding depth control 14, so that the grinding wheel 12 can be continuously adjusted according to its wear on the rail 1.
  • This grinding depth control 14 comprises a measuring device for measuring the continuously decreasing diameter of the circumference of the grinding wheel 12; it can also access measurement data from measurements of the drive torque.
  • Both the milling chips and the grinding chips or grinding dust are vacuumed off immediately after they have been created, etc. via suction devices 15 and 16.
  • guides 17 are provided for the rail 1, against which the rail 1 can be pressed by means of support rollers 18, wherein at least the driving mirror 4 of the rail 1, preferably the apex of the rail head 3, can be pressed , Furthermore, lateral guide rollers 19 engaging on both sides of the rail head 3 are provided along the device, the lateral guide rollers 19 resting on the side of the running edge 6 of the rail 1 being fixed in their position. The rail is pressed against the fixed side guide rollers 19 by the side guide rollers 19 resting on the opposite side, whereby the rail 1 assumes an exact position relative to the milling unit and grinding unit.
  • a further guide 20 is provided, which is provided with a damping device in order to eliminate vibrations on the rail 1 caused by the milling cutter.
  • the axis 21 of the grinding wheel is inclined relative to a plane 22 which is perpendicular to the longitudinal direction of the rail by an angle ⁇ which is greater than 0, preferably between 1 and 20 °, etc. in each case depending on the state of the rail 1 before grinding.
  • the angle ⁇ is expedient between 5 and 12 °, ideally at 8 °.
  • a smaller angle ⁇ is expedient to ensure an optimal machining volume with a long service life of the grinding wheel.
  • the grinding wheel 12 is already pre-profiled when new, i.e. it has approximately the counter profile to the rail 1.
  • a puller 23 with a sharpening stone 24 is advantageously provided, which can be pressed against the circumference of the grinding wheel 12.
  • This whetstone has exactly the desired profile to be produced and it also includes the angle ⁇ with the grinding wheel.
  • This sharpening stone 24 is pressed against the grinding wheel 12 before the first rail 1 begins to be sanded until it has taken on its profile.
  • the honing stone 24 can be lifted off the grinding wheel 12, because the grinding wheel profiles itself on the preliminary profile, i.e. on the milled rail head surface or on the rail head surface still provided with the rolled skin.
  • the sharpening stone can optionally be placed on the grinding wheel 12 for temporary sharpening while a rail head 3 is being machined on the grinding wheel 12.
  • the rail 1 can also be used, provided it is milled with sufficient accuracy or still has the rolled skin. If, as in the exemplary embodiment shown, a milled rail head surface is ground, then the profiled grinding wheel 12 primarily has the task of smoothing the shafts generated by the milling cutter 8 and generating a longitudinal grinding pattern.
  • the inclination of the grinding wheel 12 according to the invention results in particularly good engagement conditions and a high smoothing effect.
  • the engagement of the inclined grinding wheel 12 is illustrated in FIG. 5. It can be seen that the inclined position gives a favorable pressure angle, in particular at the transition of the convex part 5 of the rail head 3 into the side surfaces 25 of the rail head 3. These favorable conditions of intervention also permit a sufficiently large amount of material to be removed with very good thermal behavior at these points, so that no fire can occur on the ground surface. This also results in a very good service life for the grinding wheel 12.
  • the axis 21 of the grinding wheel 12 is also inclined with respect to the longitudinal symmetry center plane 26 of the rail, etc. by an angle ⁇ , the size of which can be between 1 and 20 °.
  • the axis 21 of the grinding wheel 12 can expediently be arranged to be adjustable on the device.
  • the milling unit 7 and the grinding unit 11 are installed in a rail milling train 27.
  • the milling cutter 8 and the grinding wheel 12 are moved approximately vertically against the rail 1 by means of adjusting devices 28 until the guides 17 and 20 rest on the rail head 3.
  • a movement of the grinding unit 11 and the milling unit 7 in the lateral direction to the driving edge 6 is also possible until lateral guide rollers 19 rest on the rail head 3.
  • the rail profile milling cutter 8 is constructed as a sandwich milling cutter, ie it is composed of disks 30, which are each designed as ring disks. As will be described further below, these ring disks 30 each carry a multiplicity of turning plates 31. These are made of hard metal, ceramic or similar material. As can be seen from FIG. 6, the washers 30 are fastened to a cutter core 32 by means of a screw connection 33 and centered against one another by means of a plurality of centering pins 34 and secured against one another by means of further screws 35.
  • annular disks 30 are provided, the two outer annular disks 30 carrying quadruple indexable inserts, the cutting edges of which are curved, and which are used for milling, ie producing a milling track, near the driving edge 6.
  • the annular disks 30 arranged between the outer annular disks 30 are provided on the outer circumference 36 with bumps 37 which project beyond the outer circumference 36 and which are produced in one piece with the annular disks 30. These humps 37 form the seats for quadruple inserts 31, which, however, have straight cutting edges.
  • the bumps 37 provided on the annular disks 30 form large-area chip pockets 38 lying between the turning plates 31.
  • All of the indexable inserts 31 are preferably fastened to the ring disks 30 by means of screw connections, and clamp connections could also be used.
  • Each of the cutting edges of the indexable inserts 31 of the annular disks 30 arranged between the outer annular disks 30 projects with their cutting edge over the side surfaces of the annular disk 30 to which it is attached.
  • the inserts 31 of adjacent washers 30 arranged on the washers 30 are circumferentially offset, so that the inserts 31 of the adjacent washer come to lie circumferentially between the inserts 31 of the former washer 30.
  • the sandwich milling cutter 8 With the sandwich milling cutter 8 according to the invention, it is possible to mill very many - even more than nine - milling tracks extending in the longitudinal direction of the rail 1 on the rail head 3, whereby a very high accuracy of the milled cross-sectional profile can be achieved, i.e. a very close approximation to the ideal cross-sectional profile of the rail head 3.
  • the rail heads 3 reprofiled with the milling cutter 8 according to the invention or the milling method according to the invention are sufficient without subsequent grinding being necessary, e.g. for not too high driving speeds.
  • the milled tracks are subjected to a grinding process, as described above.
  • the main advantage of the grinding method according to the invention lies in the large number of milling tracks lying side by side, which can be milled onto the rail head 3 in a single operation.
  • the milling method according to the invention is particularly advantageous combined with the grinding method according to the invention, as a result of which a high material removal can be achieved even in the case of heavily worn rails and a surface which largely corresponds to the desired rail profile by the milling method according to the invention, which, if at all, only adds more slight grinding, ie grinding with relatively little material removal, is required.
  • This makes it possible to combine milling and grinding in a single pass, thereby producing a driving mirror or a machined part of the rail head that meets the highest requirements in terms of running properties, service life and noise reduction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

L'invention concerne un procédé de reprofilage, par fraisage tangentiel, d'au moins la surface d'un rail, de préférence, de la partie convexe présentant la surface de roulement du profil transversal en champignon d'un rail, notamment d'un rail de chemin de fer, et vise à obtenir un profil avec un minimum d'ondulations, satisfaisant aux exigences. A cet effet, l'invention est caractérisée en ce qu'en vue d'obtenir un profil en un seul processus de fraisage tangentiel, on forme plus de cinq, de préférence, neuf, traces de fraisage, les unes à côté des autres, dans le sens longitudinal du rail, et en ce qu'on effectue éventuellement, par la suite, un meulage d'au moins la surface de roulement, de préférence de la partie convexe présentant la surface de roulement du profil transversal en champignon (Fig. 1).
EP01984254A 2000-07-17 2001-07-12 Procédé de reprofilage d'au moins la surface d'un rail Expired - Lifetime EP1301663B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT12412000 2000-07-17
AT0124100A AT410951B (de) 2000-07-17 2000-07-17 Verfahren zum reprofilieren mindestens des fahrspiegels einer schiene sowie einrichtung hierzu
PCT/AT2001/000234 WO2002006587A1 (fr) 2000-07-17 2001-07-12 Procede de reprofilage d'au moins la surface d'un rail et dispositif y relatif

Publications (2)

Publication Number Publication Date
EP1301663A1 true EP1301663A1 (fr) 2003-04-16
EP1301663B1 EP1301663B1 (fr) 2011-06-08

Family

ID=3687716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01984254A Expired - Lifetime EP1301663B1 (fr) 2000-07-17 2001-07-12 Procédé de reprofilage d'au moins la surface d'un rail

Country Status (12)

Country Link
US (1) US6746307B2 (fr)
EP (1) EP1301663B1 (fr)
JP (1) JP2004503700A (fr)
KR (1) KR100916831B1 (fr)
CN (1) CN1296561C (fr)
AT (3) AT410951B (fr)
AU (1) AU2002222948A1 (fr)
DE (1) DE20122924U1 (fr)
HU (1) HU228883B1 (fr)
PL (1) PL208824B1 (fr)
RU (1) RU2267570C2 (fr)
WO (1) WO2002006587A1 (fr)

Cited By (1)

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CZ303595B6 (cs) * 2011-05-13 2013-01-02 Morávek@Petr Zpusob broušení železnicních kolejí a zarízení k jeho provádení

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ITMI20070797A1 (it) * 2007-04-18 2008-10-19 Plasser Italiana S R L Metodo e dispositivo per l'allineamento superficiale ed il ripristino del profilo di due porzioni di rotaia saldate tra loro
US8370391B2 (en) * 2008-03-25 2013-02-05 Microsoft Corporation Functional updates for tree processing
ES2382976T3 (es) * 2008-10-20 2012-06-15 Schweerbau Gmbh & Co. Kg Procedimiento y dispositivo para mecanizar por arranque de virutas una pieza de trabajo con una cuchilla geométricamente determinada
AT508756B1 (de) * 2010-01-21 2011-04-15 Rungger Helmut Vorrichtung zum spanabhebenden nachbearbeiten der lauffläche eines schienenkopfes
AT510566B1 (de) * 2010-11-11 2012-05-15 Linsinger Maschinenbau Gesellschaft M B H Verfahren zum profilieren einer verlegten schiene und bearbeitungsfahrzeug
US9073167B2 (en) * 2011-10-07 2015-07-07 Bombardier Transportation Gmbh Precision rail profiling device for railway turnouts and crossings
US9073164B2 (en) * 2011-10-07 2015-07-07 Bombardier Transportation Gmbh Precision rail profiling device for railway crossovers
US20130189045A1 (en) 2012-01-19 2013-07-25 Loram Maintenance Of Way, Inc. Method and apparatus for milling of railroad track
US9617691B2 (en) 2013-03-15 2017-04-11 Greenleaf Technology Corporation Rail re-profiling method and apparatus
US10654117B2 (en) 2016-03-03 2020-05-19 Kennametal Inc. Cutting tool assembly for milling a rail top
AT519049B1 (de) * 2016-09-07 2019-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisverfahrbare Maschine zum Abtragen von Unregelmäßigkeiten an einer Schienenkopfoberfläche
CA2999319C (fr) 2017-04-04 2019-06-11 Bombardier Transportation Gmbh Appareillage et methode de correction des dommages causes aux rails et aux traverses de chemin de fer
CN108589449B (zh) * 2018-05-17 2020-03-06 中铁物总运维科技有限公司 一种个性化铁路钢轨打磨目标廓形设计方法
CN110605617B (zh) * 2018-06-15 2024-05-24 中铁宝桥集团有限公司 高效率多工位f轨排加工线及加工方法
AT521163B1 (de) 2018-08-07 2019-11-15 Linsinger Maschb Gesellschaft M B H Verfahren zum Bearbeiten der Lauffläche einer Schiene
CN111455748B (zh) * 2019-01-22 2024-07-26 湖南工业大学 一种钢轨廓形在线一次成型铣轨设备及方法
CA3201634A1 (fr) 2020-12-22 2022-06-30 Schweerbau International Gmbh & Co. Kg Dispositif dote d'un corps de fraisage pouvant etre entraine en rotation
WO2022135814A2 (fr) 2020-12-22 2022-06-30 Schweerbau International Gmbh & Co. Kg Dispositif et procédé pour rectifier un profil
CN116568441A (zh) 2020-12-22 2023-08-08 施韦鲍国际两合公司 用于铣削型材的装置及其相关方法和参考体
DE102021104309A1 (de) 2021-02-23 2022-08-25 Andrea Rüdt Vorrichtung und Verfahren zur Materialbearbeitung der Herzstückspitze einer Weichenanordnung
AT525017A1 (de) 2021-04-21 2022-11-15 Mate Gmbh Verfahren zum Reprofilieren von zumindest einer Zungenschiene

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Also Published As

Publication number Publication date
PL365666A1 (en) 2005-01-10
ATA12412000A (de) 2003-01-15
AT11201U2 (de) 2010-06-15
KR20030024791A (ko) 2003-03-26
PL208824B1 (pl) 2011-06-30
AT11201U3 (de) 2011-06-15
CN1443260A (zh) 2003-09-17
WO2002006587A1 (fr) 2002-01-24
ATE512256T1 (de) 2011-06-15
AU2002222948A1 (en) 2002-01-30
CN1296561C (zh) 2007-01-24
HU228883B1 (en) 2013-06-28
KR100916831B1 (ko) 2009-09-14
US6746307B2 (en) 2004-06-08
WO2002006587A8 (fr) 2002-07-11
EP1301663B1 (fr) 2011-06-08
AT410951B (de) 2003-09-25
HUP0301186A2 (en) 2003-08-28
RU2267570C2 (ru) 2006-01-10
US20030129926A1 (en) 2003-07-10
JP2004503700A (ja) 2004-02-05
DE20122924U1 (de) 2010-04-22

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