EP2719827B1 - Ensemble de fixation pour rails ferroviaires - Google Patents

Ensemble de fixation pour rails ferroviaires Download PDF

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Publication number
EP2719827B1
EP2719827B1 EP12789165.3A EP12789165A EP2719827B1 EP 2719827 B1 EP2719827 B1 EP 2719827B1 EP 12789165 A EP12789165 A EP 12789165A EP 2719827 B1 EP2719827 B1 EP 2719827B1
Authority
EP
European Patent Office
Prior art keywords
base plate
fastening assembly
plate
rail
support plate
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.)
Active
Application number
EP12789165.3A
Other languages
German (de)
English (en)
Other versions
EP2719827A4 (fr
EP2719827A1 (fr
Inventor
Juan Vives Clavel
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.)
Railtech Sufetra SA
Original Assignee
Railtech Sufetra 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
Priority claimed from ES201130567U external-priority patent/ES1074867Y/es
Priority claimed from ES201130568U external-priority patent/ES1074872Y/es
Application filed by Railtech Sufetra SA filed Critical Railtech Sufetra SA
Publication of EP2719827A1 publication Critical patent/EP2719827A1/fr
Publication of EP2719827A4 publication Critical patent/EP2719827A4/fr
Application granted granted Critical
Publication of EP2719827B1 publication Critical patent/EP2719827B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E01B9/46—Fastening the rail on the tie-plate by clamps
    • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips
    • E01B9/483—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped bar

Definitions

  • the present invention applies to railway fastening systems. More specifically, the invention relates to a fastening assembly for railway rails, preferably for sidings in high-speed lines.
  • Railway siding generally has a structure in which a metal plate is fastened to a cross member. It is necessary to incorporate fastening elements for the rails on the metal plate. Fastenings that fasten only one rail and fastenings that fasten two rails can be distinguished in a siding fastening, in this case the relative position of each of the rails is different in each fastening.
  • the fastening elements in a siding are generally formed by flat steel base plates that are 30 mm thick.
  • Said base plates are provided with openings and steel supports provided in the lower portion thereof with respective lugs that are inserted into the respective openings, for subsequently welding the plates and the steel supports to one another.
  • Document No. DE 101 48 727 A1 discloses an arrangement for mounting rails in tunnels that comprises a plurality of sleepers which only partially rest on the base structure, and are provided with rail clamping/positioning elements together with fixing, connection, bearing and inclination elements.
  • the document further discloses a sleeper for mounting rails which comprises sections which rest on the base structure, and are separated from one another by raised sections.
  • document No. EP 1 145 796 A1 stably supplies a side blow gas to a piercing site and prevents the adherence of spatter to a cutting nozzle.
  • a hood which is attached to a side blow gas nozzle, guides side blow gas jetted from a side blow gas nozzle to the piercing site and prevents spatter from adhering to the cutting nozzle as laser beam and assist gas are respectively radiated or jetted onto a cutting material through a communicating hole.
  • the object of the invention is to overcome these technical problems and to provide a simpler and easier-to-produce fastening assembly for railway rails, as well as a method for obtaining same, that furthermore facilitates installation during the assembly of the retaining elements and the rails.
  • the invention at hand aims to obtain a fastening that is as universal as possible by means of an effective and efficient production process, without the need of machining a large amount of holes on the steel plates and welding the supports, with savings in time and material invested in the manufacture of the plurality of parts, i.e., allowing the automation of the production thereof with the subsequent cost reduction that it entails.
  • the fastening assembly for railway rails is disclosed in the present claim 1, which comprises a base plate which allows fastening and retaining at least one railway rail.
  • each base plate in a siding retains two rails that are located on either side during point switching, changing the distance of said rails from a cross member to the adjacent one.
  • an independent base plate tends to be arranged for each rail instead of a very long double base plate common to both.
  • the base plate of the invention comprises an imaginary central axis which, in a position of installation of the fastening assembly, is located perpendicular to at least one rail, given that the other tends to be slightly curved, i.e., the base plate of the fastening assembly is located with the central axis parallel to the cross member on which it is located.
  • the base plate comprises at least two end openings located on the central axis suitable for allowing the insertion of respective anchor bolts of the base plate usually in a cross member.
  • the base plate is a metal plate and has a uniform thickness such that it can be cut by laser cutting means and shaped in a conventional pressing equipment, conventional equipment being understood as equipment commonly used for cutting and shaping metal sheet without needing additional or special resources required for carrying out special cutting and shaping work, for example, in the case of thicknesses greater than 25 mm.
  • the end openings can be obtained by said laser cutting means.
  • the base plate of the invention comprises a raised central section, which can be obtained by means of shaping in the pressing equipment, that is aligned with the central axis and flanked by respective side flanges.
  • the thickness of the plate is therefore reduced with respect to the plates of the state of the art, such that by curving the central portion of the base plate of the invention by means of shaping, the moment of inertia thereof increases, such that the plate responds much more satisfactorily to the tests than if the plate was completely flat, which allows achieving mechanical characteristics equivalent to those of the plate of the state of the art having greater thickness of the order of 30 mm.
  • the thickness of the base plate of the invention is much less allows, unlike the plates of the state of the art, automatically cutting said plates, for making a plurality of openings at different positions, for example, in a laser cutting equipment, which could not be performed while maintaining reasonable production costs in the case that the thickness of the plate was 30 mm or higher.
  • the base plate comprising, for each rail to be fastened and retained, two inner openings located on the central axis, such that each pair of inner openings are suitable for allowing the insertion of retaining screws for retaining on both sides a runner of a rail.
  • the base plate according to the fastening assembly of the invention can be cut in a laser equipment, as in the case of the end openings with the advantages that it entails, which furthermore includes the fact that the relative distance between said openings is different in each base plate according to the position thereof in the siding, so automating the implementation by means of a laser cutting equipment allows significantly reducing the manufacture time.
  • the base plate comprises, for each rail to be fastened, at least one outer opening located in a side flange, said outer opening being suitable for receiving a projection of an independent element, such as a support element or a seat that can be located between the rail and the base plate, which allows facilitating the placement thereof.
  • said outer openings are usually associated with each rail, such that the outer openings have the same advantages mentioned for the inner openings.
  • the invention relates to a fastening assembly for railway rails comprising a support plate, which is an element that may be complementary to and suitable for collaborating with the base plate described above, being located between the rail and said base plate.
  • Said support plate allows fastening and retaining a railway rail, for which it has an upper face comprising a flat area suitable for supporting a runner of a rail.
  • the support plate of the fastening assembly of the invention comprises two openings suitable for allowing the insertion of retaining screws for retaining on both sides the runner of the rail, such that according to the invention the support plate has a lower face comprising a recess suitable for receiving a projection of an independent element, which is preferably the raised central section of the base plate, such that immobilizing the support plate and facilitating the placement thereof in its service position is thus achieved.
  • the support plate comprises at least one lower projection located on the lower face thereof, where said lower projection is suitable for being housed in an opening of an independent element, such as one of the outer openings of the base plate. A better fastening and a quicker placement of the support plate is thus achieved.
  • the fastening assembly for railway rails comprises a base plate and a support plate such as those described above, where the recess of the support plate sits on the raised central section of the base plate.
  • a second aspect of the invention relates to a method for obtaining a fastening assembly for railway rails such as that described above, comprising the following steps or phases:
  • the fastening assembly of the present invention comprises a steel plate which acts as a support for the rest of the elements of the assembly and is suitable for withstanding the transverse forces, as well as the uncompensated acceleration due to the actual geometry of the siding to which the fastenings are subjected when a train goes by.
  • Figures 1 and 2 show the different elements of the fastening assembly for fastening two rails (7) located on one side of the railway track in a siding.
  • the fastening assembly comprises a double base plate (1'), even though Figure 4 shows a individual base plate (1) which is useful in those areas of the siding in which the separation between the two rails (7) of one and the same side is such that it allows arranging an individual base plate (1) for each rail (7) instead of a double base plate (1') for both rails (7).
  • the fastening assembly comprises a support plate (6), a seat plate in direct contact with the rail (7) and optionally a pad (20) on a second bottom plastic sheet (22) in the form of a protective plate, also optional, which allows maintaining the entire assembly at the same height if necessary and housing the pad (20), located on the cross member (not depicted).
  • the function of the pad (20) is to ensure that the fastening assembly has the necessary medium rigidity.
  • the fastening assembly is completed with retraining clips (5) for retaining the rail (7) which are covered by the support plate (6) having track inclination, retaining screws (4) for retaining the clips (5) on the base plate (1, 1') and anchor bolts (12) acting as eccentricity control means which are inserted once the assembly is mounted on the cross members.
  • the base plate (1, 1') is the essential element of the assembly and is formed by an elongated, preferably a rectangular, central body. It can be an individual base plate (1) ( Figure 4 ) or a double base plate (1') ( Figures 1-3 ), the function of which is to retain the assembly of the seat plate, the support plate and to laterally retain the runner of the track.
  • the body of the individual base plate (1) has two end openings (11) for the insertion of the anchor bolts (12), two inner openings (2) for the insertion of the retaining screws (4) for retaining the clips (5) and four outer openings (8) the purpose of which is described below.
  • the double base plate (1') has two end openings (11) on the body thereof for anchoring such as in the preceding case, but it has the particularity of being more elongated and suitable for the fastening of two rails (7) instead of only one. It is therefore provided with four inner openings (2) for the screws (4) of the clips (5) and eight outer openings (8), four for each rail (7).
  • the base plate (1, 1') comprises an imaginary central axis which, in a position of installation of the fastening assembly, is located perpendicular to the rails (7).
  • the base plate (1, 1') is a metal plate and has a uniform thickness in a range of 15-20 mm, such that it can be cut by laser cutting means and shaped in a conventional pressing equipment.
  • the end openings (11), outer openings (8) and inner openings (2) can be obtained by said laser cutting means.
  • the base plate (1, 1') comprises a raised central section (3) obtained by means of shaping in the pressing equipment that is aligned with the central axis and flanked by respective straight side flanges (9).
  • the base plate (1, 1') comprises, for each rail (7) to be fastened, two outer openings (8) located in each side flange (9), said outer openings (8) being suitable for receiving a lower projection (10) of the support plate (6), which allows facilitating the placement thereof.
  • the support plate (6) incorporates, on the lower face thereof close to its end sections, for withstanding the forces in better state, four lower lugs or projections (10) arranged in two on the larger sides (15), for inserting them in the mentioned four outer openings (8) made on the side flanges (9) of the base plate (1, 1').
  • the central section of said support plate (6) has a recess (16) suitable for sitting on the raised central section (3) of the base plate (1, 1').
  • the raised central section (3) comprises a straight section (14) the width of which is at least the width of each side flange (9), comprising curved transitions (13) between said raised central section (3) and said side flanges (9). This feature allows that the larger the surface area of the straight section (14) is, the more inertia is obtained and that the base plate (1, 1') bends less during operation.
  • the fastening assembly comprises a plastic bottom plate (17) located below the base plate (1, 1'), said bottom plate (17) comprising a raised central section (18) suitable for being tightly fitted under the raised central section (3), and two side flanges (19) suitable for being located below the side flanges (9) of the base plate (1, 1'), in order to achieve a force distribution that is as homogeneous as possible.
  • the raised central section (18) of the bottom plate (17) comprises a plurality of ribs (21).
  • the raised central section (18) of the bottom plate (17) is preferably not solid, but is rather formed by ribs (21), to prevent 'voids' during manufacture.
  • the fastening assembly for railway rails (7) comprises a base plate (1, 1') and a support plate (6) such as those described above, where the recess (16) of the support plate (6) sits on the raised central section (3) of the base plate (1, 1'), such that the lower projections (10) of the support plate (6) are housed in the outer openings (8) of the base plate (1, 1').
  • a second aspect of the invention relates to a method for obtaining a fastening assembly for railway rails such as that described above, comprising the following steps or phases:
  • the method of the invention comprises:
  • programming data which defines the positioning of the corresponding openings on the base plate are entered in a laser or water cutting equipment, comprising a laser cutting robot automatically cutting the required parts, these at least two inner openings (2) in the raised central section (3) and at least four outer openings (8) in the side flanges (9) being arranged in two with respect to each side flange (9) of the base plate (1, 1') identifying the exact position for the installation of the support plate (6) sitting on the base plate (1, 1').
  • the process of manufacturing the base plate according to the invention is simple and quicker than the previous processes.
  • By means of the laser cutting operation, as well as press stamping it is possible to eliminate the machining and welding operations necessary for the installation of the fastening systems known until now, which operations are very time consuming and require the use of expensive equipment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Claims (10)

  1. Ensemble de fixation pour rails ferroviaires (7) comprenant une plaque de base (1, 1') qui permet de fixer et de retenir au moins un rail ferroviaire (7), dans lequel ladite plaque de base (1, 1') comprend un axe central imaginaire qui, dans une position d'installation de l'ensemble de fixation, est disposé perpendiculairement à au moins un rail (7), dans lequel la plaque de base (1, 1') est une plaque métallique et a une épaisseur uniforme de manière qu'elle peut être découpée par des moyens de découpage laser et modelée dans un équipement de pressage conventionnel, caractérisé en ce que ladite plaque de base (1, 1') comprend une section centrale surélevée (3) qui est alignée avec l'axe central, flanquée par des brides latérales respectives (9) et en ce que ladite plaque de base (1, 1') comprend en outre au moins deux ouvertures d'extrémité (11) situées à l'axe central aptes à permettre l'insertion de boulons d'ancrage respectifs (12) de la plaque de base (1, 1').
  2. Ensemble de fixation selon la revendication 1, dans lequel l'épaisseur de la plaque de base (1, 1') se situe dans la plage de 15-20 mm.
  3. Ensemble de fixation selon l'une quelconque des revendications précédentes, dans lequel la plaque de base (1, 1') comprend, pour chaque rail (7) à être fixé et retenu, deux ouvertures intérieures (2) situées à l'axe central aptes à permettre l'insertion de vis de retenue (4) pour retenir aux deux côtés une glissière d'un rail (7).
  4. Ensemble de fixation selon l'une quelconque des revendications précédentes, dans lequel la plaque de base (1, 1') comprend, pour chaque rail (7) à être fixé, au moins une ouverture extérieure (8) située dans une bride latérale (9), ladite au moins une ouverture extérieure (8) étant apte à recevoir une saillie d'un élément indépendant.
  5. Ensemble de fixation selon l'une quelconque des revendications précédentes, dans lequel la section centrale surélevée (3) comprend une section rectiligne (14) dont la largeur est au moins la largeur de chaque bride latérale (9), comprenant des transitions courbées (13) entre ladite section centrale surélevée (3) et lesdites brides latérales (9).
  6. Ensemble de fixation selon l'une quelconque des revendications précédentes, comprenant une plaque de fond (17) située sous la plaque de base (1, 1'), ladite plaque de fond (17) comprenant une section centrale surélevée (18) apte à être ajustée fermement sous la section centrale surélevée (3), et deux brides latérales (19) aptes à être situées sous les brides latérales (9) de la plaque de base (1, 1').
  7. Ensemble de fixation selon la revendication 6, caractérisé en ce que la section centrale surélevée (18) de la plaque de fond (17) comprend une pluralité de nervures (21).
  8. Ensemble de fixation pour rails ferroviaires (7) comprenant une plaque de base (1, 1') selon l'une quelconque des revendications 1 à 7 et une plaque de support (6) qui permet de fixer et de retenir un rail ferroviaire (7), dans lequel ladite plaque de support (6) a une face supérieure comprenant une surface plane apte à supporter une glissière d'un rail (7), ladite plaque de support (6) comprenant deux ouvertures aptes à permettre l'insertion de vis de retenue (4) pour retenir aux deux côtés la glissière du rail (7), ladite plaque de support (6) ayant une face inférieure comprenant un évidement (16) apte à recevoir une saillie d'un élément indépendant, caractérisé en ce que l'évidement (16) de la plaque de support (6) repose sur la section centrale surélevée (3) de la plaque de base (1, 1').
  9. Ensemble de fixation selon la revendication 8, dans lequel la plaque de support (6) comprend au moins une saillie inférieure (10) située sur la face inférieure de celle-ci, dans lequel ladite saillie inférieure (10) est apte à être logée dans une ouverture d'un élément indépendant.
  10. Ensemble de fixation pour rails ferroviaires (7) comprenant une plaque de base (1, 1') selon l'une quelconque des revendications 4 à 7 et une plaque de support (6) selon la revendication 9, dans lequel la saillie inférieure (10) de la plaque de support (6) est logée dans une ouverture extérieure (8) de la plaque de base (1, 1').
EP12789165.3A 2011-05-26 2012-05-25 Ensemble de fixation pour rails ferroviaires Active EP2719827B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES201130567U ES1074867Y (es) 2011-05-26 2011-05-26 Placa base para railes ferroviarios
ES201130568U ES1074872Y (es) 2011-05-26 2011-05-26 Placa de soporte para railes ferroviarios
PCT/ES2012/070386 WO2012160238A1 (fr) 2011-05-26 2012-05-25 Ensemble de fixation pour rails ferroviaires et son procédé d'obtention

Publications (3)

Publication Number Publication Date
EP2719827A1 EP2719827A1 (fr) 2014-04-16
EP2719827A4 EP2719827A4 (fr) 2015-04-22
EP2719827B1 true EP2719827B1 (fr) 2017-03-01

Family

ID=47216652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12789165.3A Active EP2719827B1 (fr) 2011-05-26 2012-05-25 Ensemble de fixation pour rails ferroviaires

Country Status (4)

Country Link
EP (1) EP2719827B1 (fr)
ES (1) ES2629691T3 (fr)
PT (1) PT2719827T (fr)
WO (1) WO2012160238A1 (fr)

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Publication number Priority date Publication date Assignee Title
PL3235951T3 (pl) * 2016-04-22 2019-09-30 Schwihag Ag Urządzenie do mocowania szyny dla pojazdów szynowych
US10081915B2 (en) 2016-07-20 2018-09-25 Progress Rail Services Corporation Track rail fastening mechanism and method
US10240299B2 (en) * 2016-07-25 2019-03-26 Progress Rail Services Corporation Mechanism and system for fastening track rail to a substrate and track rail fastening method
RU2643301C1 (ru) * 2016-11-24 2018-01-31 Владимир Павлович Акимов Упор стрелочный регулировочный
US12012700B2 (en) * 2018-02-05 2024-06-18 Pandrol Iberica S.A.U. Modular fastening for railway crossings
US11098454B2 (en) 2019-04-01 2021-08-24 Progress Rail Services Corporation Track rail fastener and system for pedestal mounted track rail
ES2959826T3 (es) * 2019-05-24 2024-02-28 Pandrol Iberica S A U Fijación modular para cruces de vías
DE102020002392A1 (de) 2020-03-23 2021-09-23 Riecken Maschinenbau Gmbh Zungenvorrichtung und Verfahren zur Hrstellung einer Zungenvorrichtung

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US1036512A (en) * 1912-02-17 1912-08-20 George Naylor Railway-tie.
DE1115752B (de) * 1958-10-10 1961-10-26 Walter Schumacher Eisenbahnschwelle aus Gusseisen
DE2718665A1 (de) * 1977-04-27 1978-11-02 Kloeckner Werke Ag Stahlschwelle fuer den gleisbau
US4756477A (en) * 1987-07-24 1988-07-12 Pandrol Limited Plate for supporting railway rails and a track assembly using it
AU632828B2 (en) * 1989-07-10 1993-01-14 Voest-Alpine Eisenbahnsysteme Gesellschaft M.B.H. Apparatus for fastening rails
CA2210395C (fr) * 1995-01-13 2008-11-25 Jude Igwemezie Dispositifs de fixation pour rails
JP2001287076A (ja) * 2000-04-10 2001-10-16 Tanaka Engineering Works Ltd レーザ切断機のピアシング装置
DE10148727A1 (de) * 2001-10-02 2003-04-10 Ferd Braselmann Gmbh & Co Kg Einrichtung zur Verlagerung von Schienen sowie Bodenschwelle
DE102004021091A1 (de) * 2004-04-29 2006-10-19 Bwg Gmbh & Co. Kg Befestigung für eine Schiene sowie Anordnung zum Befestigen von Schienen
DE102006033379A1 (de) * 2006-07-19 2008-01-31 Thyssenkrupp Gft Gleistechnik Gmbh Einrichtung zur Lagerung und Höheneinstellung von Schienen
ES2354900B1 (es) * 2009-09-09 2012-01-23 Railtech Sufetra,S.A. Placa base de fijaciones ferroviarias y procedimiento para su fabricación.

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Also Published As

Publication number Publication date
EP2719827A4 (fr) 2015-04-22
ES2629691T3 (es) 2017-08-14
EP2719827A1 (fr) 2014-04-16
WO2012160238A1 (fr) 2012-11-29
PT2719827T (pt) 2017-06-26

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