EP3290583B1 - Modular rail fastening system - Google Patents

Modular rail fastening system Download PDF

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Publication number
EP3290583B1
EP3290583B1 EP16382411.3A EP16382411A EP3290583B1 EP 3290583 B1 EP3290583 B1 EP 3290583B1 EP 16382411 A EP16382411 A EP 16382411A EP 3290583 B1 EP3290583 B1 EP 3290583B1
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EP
European Patent Office
Prior art keywords
fastening system
elastic
bonded
modular
bearing 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
EP16382411.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3290583A1 (en
Inventor
Javier ARDURA GONZÁLEZ
Pablo QUERO GARCÍA
David PIÑA SALA
Mario Cesar GONZÁLEZ REQUEJO
Ignacio Javier IGLESIAS PAÑEDA
José Vicente GIMENO DURÁ
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.)
Duro Felguera Rail SAU
Somtech Technologies SL
Original Assignee
Duro Felguera Rail SAU
Somtech Technologies SL
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 Duro Felguera Rail SAU, Somtech Technologies SL filed Critical Duro Felguera Rail SAU
Priority to ES16382411T priority Critical patent/ES2757898T3/es
Priority to EP16382411.3A priority patent/EP3290583B1/en
Publication of EP3290583A1 publication Critical patent/EP3290583A1/en
Application granted granted Critical
Publication of EP3290583B1 publication Critical patent/EP3290583B1/en
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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
    • 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
    • E01B9/40—Tie-plates for flat-bottom rails
    • E01B9/42—Tie-plates for flat-bottom rails of two or more parts

Definitions

  • the present invention relates to a modular rail fastening system, integrated by bonded components, which is applicable in the railroad industry as a fastening system for a ballastless track or on ties and more specifically, in relation to the track apparatuses that require highly elastic fastening systems to improve their performance.
  • Fastener is taken to mean that which is formed by the rail bearing plate with its elastic clips and its pre-installable sheets or pads under the running rail and under the bearing plate. Anchors on the ties or on the concrete slab also form part of fasteners.
  • the elastic characteristics of the fastener depend on the geometry, dimensions and composition of the elastomer used.
  • Both systems a) and b) are to be applied to tracks on ties (ballast track) and tracks on concrete slab, the latter being assembled with the 'Top-Down' or 'Bottom-Up' system.
  • the type and method of anchoring the fasteners to the concrete slab or to the ties and the components such as eccentric bushings or toothed regulators of the plate position complete the materials of the fastening system, although, on occasion, they do not form part of the development of the elastic system itself.
  • the standard elastic fastener of type a) which is used on ties or concrete slab achieves elasticity using an elastic sheet (6) under the bearing plate (9).
  • the assembly is completed by elastic clips (1) and their screws, the pre-installable elastic sheet under the rail (2), the insulation and adjustment sheet under the plate (3) and the anchors (4) to the tie or concrete slab.
  • Figure 1 shows an example of this type.
  • the special elastic fastener for track apparatuses of type a) which is used on ties or concrete slab, achieves elasticity using an elastic sheet (6) under the bearing plate (9).
  • the assembly is completed by elastic clips (1) and their screws, the pre-installable elastic sheet under the rail (2), the insulation and adjustment sheet under the plate (3) and the anchors (4) to the tie or concrete slab.
  • Figure 2 shows an example of this type.
  • the assembly is completed by elastic clips (1) and their screws, the pre-installable elastic sheet under the rail (2), the insulation and adjustment sheet under the plate (3) and the anchors (4) to the tie or concrete slab.
  • the assembly is completed by elastic clips (1) and their screws, the pre-installable elastic sheet under the rail (2), the insulation and adjustment sheet under the plate (3) and the anchors (4) to the tie or concrete slab.
  • EP 0 627 525 A1 relates to a special trackwork fastener for supporting a railroad rail and attaching it to a support structure.
  • the fastener is modular in construction and can be particularly used in switches, turnouts, crossovers, crossings and the like.
  • the present invention relates to the development of the special bonded fasteners with application to the track and to the special bearing plates of the track apparatuses.
  • This invention is an alternative to some of the current technical proposals, such as the ones represented in figures 2 or 4 .
  • the special bearing plates of a track apparatus are all of those that are not standard, for example: slide bars, plates composed of the heel of the switch, plates composed of embedded switches, guard-rail supports, plates composed of the crossing entrance and exit or the crossing bearing plates.
  • the bonded fastener of the invention is based on a concept of modularity, for which reason each special bearing plate of the bonded fastener has been divided into different and independent main parts that offer the possibility of remaining joined together, forming an assembly adapted to the dimensions required by the track apparatus, or being separated to facilitate maintenance and replacement tasks.
  • the first level has the insulation and adjustment/levelling sheet of the assembly, manufactured, for example, with HDPE material, which insulates the rest of the components that make up the fastener with respect to the concrete slab or tie.
  • the insulation sheet is adjustable in length based on the total length of the fastener, and is also adjustable in thickness, for the proper levelling of the track.
  • the second level has two bonded shoulders or side pieces which are the same and joined by a central support upon which a plate with the same elasticity as the pieces is placed in line with a bonding of the shoulders.
  • the shoulders and the central support comprise the joining means that allow for the coupling of each shoulder to the central support.
  • the shoulders have a geometry that is adapted to integrate the attachment anchors into the concrete slab. There is also the possibility that they comprise a system for adjusting the position of the modular fastening system within the track apparatus.
  • the third level has the upper plate of the track apparatus, relative to a special bearing plate and generally manufactured with ribbed plates or steel sheets. It is placed under the rails and contains elastic clips and the necessary pre-installable sheets. This plate is surrounded on its ends, preferably around the perimeter, by the bonding of the shoulders and is attached to them by threaded bolts. The perimeter bonding limits the longitudinal and lateral movements of the plate.
  • the fourth level has stop ends, nails or latches that are attached to the shoulders which limit the vertical upward movements of the upper plate.
  • the modular rail fastening system proposed by the invention, that it comprises, according to figure 5 , two side bonded pieces (10), also called shoulders, that are joined (with the appropriate assembly or disassembly means) by a piece whose length is adjustable to the needs of the track called the central support (11), which are integrated together to make up a compact and mechanically resistant assembly called a bonded body (12).
  • each shoulder (10) and central support (11) preferably comprise joining means that allow for the coupling of each shoulder (10) to the central support (11), which restrict movement between the side pieces (10) and the central support (11), except in the longitudinal direction of the attachment, which is transversal to the fixed rail, such as rods (8) that emerge from the central support (11) and are inserted into the guide bushings (19) located on the side pieces (10).
  • An elastic plate is placed on the central support (11) which, together with the bonded shoulders (10), make up the elastic base of the bonded body (12), upon which the special bearing plate (9) is placed.
  • This bearing plate contains the elastic clips (1) and the pre-installable elastic sheets under the rail (2), such that the special bearing plate (9) covers the entirety of the elastic plate (6) and partially covers each one of the bonded shoulders (10).
  • the elastic plate (6) is fitted upon the retaining central support (11) to prevent longitudinal and transversal movements that can be produced during assembly and to define a central area between the two side pieces (10).
  • the elastic plate (6) comprises a plurality of castings (23) distributed strategically such that they allow for the adjustment of the elasticity of the existing central area between the two side pieces (10).
  • the entire assembly is mounted on an insulation and adjustment sheet (3) under an adjustable-length plate based on the total length of the fastener and on the thickness, which is also adjustable, to achieve proper levelling of the track. This prevents the rest of the pieces from coming into direct contact with the concrete, permitting easier maintenance when having to change the components of the special fastener.
  • the bonded shoulder (10) is one of the modules of this invention and it is seen in detail in figures 6 and 7 . It has the hollows and recesses necessary to achieve the range of elasticity desired and it is made up of the following parts:
  • a cast base (14) that contains the housings (15) on the two sides of the cast base (14), defining an anchor point on each side of each side piece (10) for the attachments to the concrete, and it comprises the elastic bonded component (16), which is generally rubber-based.
  • the cast base (14) with the elastic bonded component (16), according to the invention partially surrounds the area of the special bearing plate (9) through elevated areas (21), remaining fitted to the ends of the special bearing plate (9) and acting as a perimeter stop end that limits its longitudinal and lateral movements.
  • the housings (15) comprise a toothed regulator (22) to withstand the transversal forces to the rail and adjust the position of the modular fastening system.
  • the cast base (14) comprises a plurality of lightening blocks (20) which makes filling with the elastic bonded component (16) easier, simplifying the bonding process.
  • the elastic bonded component (16) comprises a plurality of castings (20') that favor its deformation, improving the absorption of vibrations and noise.
  • An insert (17) forming a compact block is embedded in the elastic bonded component (16) and contains threaded bolts (18) to attach the special bearing plate (9) to the bonded body (12).
  • a nail or latch (13) that attaches the special bearing plate (9) to the side pieces (10) is screwed onto the cast base (14) in order to limit the vertical stress on the plates, and it preferably comprises an elastomer bonded to the latch (13) itself that supports the special bearing plate (9) through said bonded elastomer (16'), on the one hand avoiding metal-to-metal contact and on the other, elastically absorbing the vertical movements on the special bearing plate (9).
  • the fastener system of the invention limits deflection and vertical and lateral movements by having the special bearing plate (9), preferably metal, fitted or surrounded by elastic material in the areas previously indicated, such that the stress and vibrations coming from the track are absorbed and minimized.
  • Figure 8 shows an example of a complete modular plate in a working position on a track apparatus.
  • each rail is securely attached to the special bearing plate (9) with two clips (1) that exert a load on each one of the rails.
  • Each clip (1) is screwed to the special bearing plate (9) assembly with a screw set comprising a hook, nut and bolt.
  • the central support (11) and the elastic plate (6) are adaptable and adjustable in length to any measurement required by the track apparatus.
  • the side pieces (10) are common and the same for any of the plates of the track apparatus.
  • the modular fastening system can be used to transform the elasticity of apparatuses in service with the maximum use of the components installed on the track.
  • the concept of the bonded monoblock plate described in the background section has been changed for the concept of a modular fastening system, which can be assembled/dissembled and adjusted, creating the opportunity to place it on existing track apparatuses, while using most of the components of those apparatuses.
  • Figure 9 shows an alternative use, relative to an example of a complete modular bonded fastener according to the invention in working position, adapted to a standard solution, where the bonded shoulders or side pieces (10), the standard bearing plate, latches (13), the insulation and adjustment plate (3), anchors (4) to the concrete slab, elastic clips for the rail (1) and the pre-installable elastic sheets (2) can be seen.
  • the side pieces (10) on both sides, equipped with the respective latches (13) and anchors (4), are the same ones used in fastening the special bearing plate (9), according to a modular design shared by both types of fasteners.
  • elasticity is exclusively defined as the elastic bonded component (16) of the side pieces (10), since there is no elastic plate (6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
EP16382411.3A 2016-09-02 2016-09-02 Modular rail fastening system Active EP3290583B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES16382411T ES2757898T3 (es) 2016-09-02 2016-09-02 Sistema de sujeción modular para raíles
EP16382411.3A EP3290583B1 (en) 2016-09-02 2016-09-02 Modular rail fastening system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16382411.3A EP3290583B1 (en) 2016-09-02 2016-09-02 Modular rail fastening system

Publications (2)

Publication Number Publication Date
EP3290583A1 EP3290583A1 (en) 2018-03-07
EP3290583B1 true EP3290583B1 (en) 2019-08-07

Family

ID=57206191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16382411.3A Active EP3290583B1 (en) 2016-09-02 2016-09-02 Modular rail fastening system

Country Status (2)

Country Link
EP (1) EP3290583B1 (es)
ES (1) ES2757898T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373958A (zh) * 2018-10-31 2019-10-25 中铁工程设计咨询集团有限公司 一种减振扣件系统
CN109675750B (zh) * 2019-01-11 2021-05-28 攀枝花市贝特尔科技有限公司 超细长重轨绝缘耐腐蚀涂层自动涂装台架及涂装方法
WO2020240050A1 (es) * 2019-05-24 2020-12-03 Pandrol Iberica S.A.U. Fijación modular para cruces de vías
CN113235331B (zh) * 2021-05-29 2022-08-09 北京中铁诚业工程建设监理有限公司 一种重载铁路隧道群无砟轨道及其施工方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576293A (en) * 1969-02-26 1971-04-27 Landis Sales Co Direct fixation rail fastener apparatus
US5249743A (en) * 1992-04-23 1993-10-05 Lord Corporation Multiple section special trackwork fastener
KR100397870B1 (ko) * 2001-07-28 2003-09-13 최태웅 철도레일 방진체결장치
ES1058662Y (es) * 2004-10-26 2005-05-01 Suministros Para Ferrocarriles Placa soporte para rail ferroviario.
ES1073354Y (es) * 2010-07-27 2011-03-01 Talleres Alegria S A Dispositivo de anclaje multiposicion, aplicable en fijaciones de viasferroviarias entra carril y plataforma.
DE202011104261U1 (de) * 2011-07-25 2011-11-03 Vossloh-Werke Gmbh System zum Befestigen einer Schiene auf einem Untergrund

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2757898T3 (es) 2020-04-30
EP3290583A1 (en) 2018-03-07

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