EP3623529B1 - Strassenbahnkreuzung mit verbundteilen - Google Patents

Strassenbahnkreuzung mit verbundteilen Download PDF

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Publication number
EP3623529B1
EP3623529B1 EP18382668.4A EP18382668A EP3623529B1 EP 3623529 B1 EP3623529 B1 EP 3623529B1 EP 18382668 A EP18382668 A EP 18382668A EP 3623529 B1 EP3623529 B1 EP 3623529B1
Authority
EP
European Patent Office
Prior art keywords
tram
crossing
hollowed
central part
composite
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
EP18382668.4A
Other languages
English (en)
French (fr)
Other versions
EP3623529A1 (de
Inventor
Vicente Albisua Aspiazu
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.)
Amurrio Ferrocarril y Equipos SA
Original Assignee
Amurrio Ferrocarril y Equipos 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 Amurrio Ferrocarril y Equipos SA filed Critical Amurrio Ferrocarril y Equipos SA
Priority to PT183826684T priority Critical patent/PT3623529T/pt
Priority to ES18382668T priority patent/ES2882711T3/es
Priority to EP18382668.4A priority patent/EP3623529B1/de
Publication of EP3623529A1 publication Critical patent/EP3623529A1/de
Application granted granted Critical
Publication of EP3623529B1 publication Critical patent/EP3623529B1/de
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
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B21/00—Track superstructure adapted for tramways in paved streets

Definitions

  • the present invention belongs to the field of points for trams and particularly to railway crossings.
  • the object of the present invention is a tram crossing comprising an embedded fixed part and another composite central part comprising three disconnected elements fixed to said embedded fixed part.
  • railway crossings or movable point crossings are the elements that are placed at tram points that allow the passage of wheels at the location where two rails cross.
  • Said crossings are made up of an outer part which is embedded in concrete of the railway track, and a central part which can be removable.
  • tram crossings are manufactured using a thick sheet metal in which the grooves enabling the passage of tram wheel flanges are machined.
  • the crossings can be assembled using manganese steel rails or castings.
  • Wheel-to-crossing weight transfer changes which may cause flattening and wear, usually occur in said crossings, and particularly in the central part of the crossing.
  • the contact areas between the outer part of the crossing that is embedded in concrete and the removable central part must have a 0 mm rail-joint gauge in the areas of the crossing where the tram wheel rolls and goes from the embedded fixed part of said crossing to the removable central part and vice versa, i.e., there must be continuity between the rolling of the parts of the crossing to prevent impacts, mechanical deformations, and maladjustments.
  • a single element including the entire central part to be replaced is used, it is virtually impossible to achieve 0 mm rail-joint gauges, since this can only be achieved by manufacturing the crossing in assembly workshops.
  • AT505047A1 relates to a horizontally divided switch heart with a switch body and individually exchangeable plug-in parts in the form of wing rails and heart tip, the plug-in parts being insertable into fitting slots in the switch body, the plug-in parts being wider in cross section in the area of the wheel running surface than in the area of the fitting slots.
  • the present invention relates to a tram crossing comprising a fixed part embedded in concrete, and comprising a hollowed-out central surface, where said hollowed-out central surface is suitable for receiving a composite central part and a bolting system for fixing the composite central part to the hollowed-out central surface.
  • a composite central part comprises three disconnected elements.
  • the three disconnected elements comprise a right wing rail, a left wing rail, and a frog.
  • the composite central part therefore comprises three elements not connected to one another.
  • the bolting system allows fixing each of the three elements forming the composite central part.
  • the crossing according to the present invention therefore allows a perfect fit of the rail-joint gauges between the three disconnected parts forming the central part, in contrast with conventional crossings where the fitting of a single central part in different rail-joint gauges constitutes a major complication.
  • the three disconnected parts can be mounted at a 0 mm rail-joint gauge in the joints of the rolling grooves for the passage of the tram wheel flanges, by means of fixing wedge plates in non-rolling areas of the tram wheels.
  • the wedge plates can have different sizes in order to obtain the desired 0 mm rail-joint gauge.
  • the wedge plates are fixed by the bolting system.
  • the crossing of the present invention allows removing only the parts of the composite central part that experience more wear.
  • the wing rails are the parts of the composite central part that experience frequent circulation of the tram and are therefore the parts that experience the most wear, whereas the frog of the crossing is the part that experiences the least wear and can therefore remain intact for a longer time, thereby prolonging the use thereof and lowering crossing maintenance costs.
  • FIG 1 shows part of a tram crossing (100) according to the present invention.
  • the tram crossing (100) comprises a fixed part (110) embedded in concrete.
  • the embedded fixed part (110) comprises a hollowed-out central surface (130) comprising threaded boreholes (135).
  • a composite central part of the tram crossing is placed on said hollowed-out central surface (130), which is shown in Figure 2 .
  • the threaded boreholes (135) allow fixing the composite central part to the hollowed-out central surface (130) as shown in Figure 2 .
  • the embedded fixed part (110) comprises a first segment (120a) of the rolling grooves for the passage of a tram.
  • FIG 2 shows an exploded view of the tram crossing (100) comprising the embedded fixed part (110) with the hollowed-out central surface (130) and the composite central part.
  • the composite central part comprises three elements not connected to one another, as can be seen in Figure 2 .
  • the composite central part therefore comprises a right wing rail (160), a left wing rail (140), and a frog (150) as well as threaded boreholes (145) that allow fixing the composite central part to the hollowed-out central surface (130) of the embedded fixed part (110) by means of a screw and nut assembly (175).
  • the detail of a screw and nut (175) is shown in Figure 3 .
  • the frog (150) comprises a second segment (120b) of the rolling grooves which, when connected to the first segment (120a) of the embedded fixed part (110), form the rolling grooves for the passage of the tram over the crossing (100).
  • the three parts (140, 150 and 160) are assembled at a 0 mm rail-joint gauge in the contact joints between the frog (150) and the wing rails (140) and (160).
  • the fixing of the three parts (140, 150 and 160) allows completing the attachment of the segments of the rolling grooves for the passage of the tram over the crossing.
  • the fixing of said parts therefore allows the first segment (120a) of the rolling grooves established in the embedded fixed part (110) and the second segment (120b) of the rolling grooves established in the frog (150) to be attached to one another.
  • the crossing (100) likewise comprises non-rolling areas of the tram comprising a clearance (165) at the end of the three parts (140, 150 and 160) in contact with the edges of the hollowed-out central surface (130).
  • Wedge plates (170) that allow fitting the three parts (140, 150 and 160) fixed by means of screws and nuts (175) are inserted in the clearance (165) of the non-rolling areas.
  • the wedge plates (170) are therefore inserted in the non-rolling areas of the tram wheel on the crossing (100), as seen in Figure 2 .
  • the wedge plates (170) can have different sizes to obtain the 0 mm rail-joint gauge.
  • Figure 2 shows, for each wing rail (140) and (160), a wedge plate in the longitudinal direction of the crossing and a wedge plate in the transverse direction, thereby obtaining the desired 0 mm rail-joint gauge in the rolling area of the tram wheel.
  • Figure 3 shows a detailed view of the clearance (165) of the non-rolling area of the tram and the fixing between the left wing rail (140) and the embedded fixed part (110) by means of the screw and nut (175). It can be seen how the nut is introduced through the threaded borehole (145) of the left wing rail (140) and through the threaded borehole (135) of the hollowed-out central surface (130), fixing the left wing rail (140) to the embedded fixed part (110) of the tram crossing (100).
  • the clearance (165) allows fitting the wing rail by means of the wedge plate (170) fixed to said wing rail by means of the same screw and nut (175) to obtain the 0 mm rail-joint gauge in the rolling area.
  • Figure 4 shows the tram crossing (100) comprising the embedded fixed part (110) and the composite central part comprising the right wing rail (160), the left wing rail (140), and the frog (150) fixed to said embedded fixed part (110) by means of screws and nuts (175).
  • the wedge plates (170) inserted in the clearance (165) of the non-rolling areas and fixed by means of screws and nuts (175), which allow fitting the composite central part to the hollowed-out central surface (130) of the embedded fixed part (110), can also be seen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Railway Tracks (AREA)

Claims (2)

  1. Straßenbahnkreuzung (100), umfassend einen festen Teil (110), der eine ausgehöhlte zentrale Fläche (130), einen zusammengesetzten zentralen Teil (140, 150, 160), wobei die ausgehöhlte zentrale Fläche (130) geeignet ist, den zusammengesetzten zentralen Teil (140, 150, 160) aufzunehmen, und ein Bolzensystem (135, 145, 175) zum Fixieren des zusammengesetzten zentralen Teils (140, 150, 160) an der ausgehöhlten zentralen Fläche (130) umfasst, wobei der eingebettete feste Teil und der zusammengesetzte zentrale Teil Rollrillen (120a, 120b) für die Vorbeifahrt einer Straßenbahn bilden, wobei der zusammengesetzte zentrale Teil (140, 150, 160) drei unverbundene Elemente umfasst:
    eine rechte Flügelschiene (160);
    eine linke Flügelschiene (140); und
    ein Herzstück (150); und
    wobei das Bolzensystem (135, 145, 175) es ermöglicht, jedes der unverbundenen Elemente (140, 150, 160) an der ausgehöhlten zentralen Fläche (130) zu fixieren, wobei die Straßenbahnkreuzung (100) dadurch gekennzeichnet ist, dass der feste Teil (110) in Beton eingebettet ist, wobei die Straßenbahnkreuzung (100) weiterhin umfasst:
    eine Menge von Keilplatten (170), die mittels des Bolzensystems (135, 145, 175) in Nichtrollbereichen der Straßenbahn fixiert sind, wobei man in Rollbereichen der Straßenbahn eine Schienenfugenspurweite von 0 mm erhält, wobei die Menge von Keilplatten (170) in einen Spalt zwischen den Nichtrollbereichen eingefügt ist, wobei der Spalt am Ende der drei unverbundenen Elemente (140, 150, 160) mit den Kanten der ausgehöhlten zentralen Fläche (130) in Kontakt steht und
    wobei die Menge von Keilplatten (170) für jede Flügelschiene (160, 140) eine in Längsrichtung der Straßenbahnkreuzung (100) fixierte Keilplatte (170) und eine in Querrichtung der Straßenbahnkreuzung (100) fixierte Keilplatte (170) umfasst.
  2. Straßenbahnkreuzung (100) gemäß Anspruch 1, wobei das Bolzensystem eine Menge von Gewindeöffnungen (135), die auf der ausgehöhlten zentralen Fläche (130) ausgebildet sind, eine Menge von Gewindeöffnungen (145) in der rechten Flügelschiene (160), eine Menge von Gewindeöffnungen (145) in der linken Flügelschiene (140), eine Menge von Gewindeöffnungen (145) in dem Herzstück (150) und eine Menge von Schrauben und Muttern (175) umfasst.
EP18382668.4A 2018-09-17 2018-09-17 Strassenbahnkreuzung mit verbundteilen Active EP3623529B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PT183826684T PT3623529T (pt) 2018-09-17 2018-09-17 Passagem de elétrico com partes compósitas
ES18382668T ES2882711T3 (es) 2018-09-17 2018-09-17 Cruzamiento de tranvía con partes compuestas
EP18382668.4A EP3623529B1 (de) 2018-09-17 2018-09-17 Strassenbahnkreuzung mit verbundteilen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18382668.4A EP3623529B1 (de) 2018-09-17 2018-09-17 Strassenbahnkreuzung mit verbundteilen

Publications (2)

Publication Number Publication Date
EP3623529A1 EP3623529A1 (de) 2020-03-18
EP3623529B1 true EP3623529B1 (de) 2021-06-02

Family

ID=64267754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18382668.4A Active EP3623529B1 (de) 2018-09-17 2018-09-17 Strassenbahnkreuzung mit verbundteilen

Country Status (3)

Country Link
EP (1) EP3623529B1 (de)
ES (1) ES2882711T3 (de)
PT (1) PT3623529T (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004010655U1 (de) * 2004-07-07 2004-09-09 Thyssenkrupp Weichenbau Gmbh Rillenschienen-Herzstück
AT505047B1 (de) * 2007-04-10 2010-05-15 Richard Pfanzelter Horizontal geteiltes weichenherz

Also Published As

Publication number Publication date
EP3623529A1 (de) 2020-03-18
ES2882711T3 (es) 2021-12-02
PT3623529T (pt) 2021-08-03

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