EP1810807A2 - Procédé et appareil de fabrication d'une traverse de chemin de fer faite de béton - Google Patents

Procédé et appareil de fabrication d'une traverse de chemin de fer faite de béton Download PDF

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Publication number
EP1810807A2
EP1810807A2 EP06397028A EP06397028A EP1810807A2 EP 1810807 A2 EP1810807 A2 EP 1810807A2 EP 06397028 A EP06397028 A EP 06397028A EP 06397028 A EP06397028 A EP 06397028A EP 1810807 A2 EP1810807 A2 EP 1810807A2
Authority
EP
European Patent Office
Prior art keywords
magnet
casting mold
mold
rail
concrete
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.)
Withdrawn
Application number
EP06397028A
Other languages
German (de)
English (en)
Other versions
EP1810807A3 (fr
Inventor
Leo Sandqvist
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.)
Elematic Oyj
Original Assignee
Elematic Oyj
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 Elematic Oyj filed Critical Elematic Oyj
Publication of EP1810807A2 publication Critical patent/EP1810807A2/fr
Publication of EP1810807A3 publication Critical patent/EP1810807A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/36—Composite sleepers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone

Definitions

  • the invention relates to manufacturing of railway sleepers cast of concrete. More precisely, the invention relates to attaching a rail fastener of a concrete railway sleeper into the casting mold.
  • Rail sleepers are usually manufactured either of wood or of concrete by casting.
  • the continuous growth of weights and speeds of the trains has caused increasing loading of the rails and sleepers.
  • the wooden sleepers do not much stand these increased loadings, whereby the use of sleepers made of concrete is more and more increasing in the railways.
  • Concrete sleepers are prestressed, and they are manufactured by casting in a mold one by one or on a long production line with a plurality of casting molds located side by side and one after another. Rail fasteners for attaching the rails are placed into the molds prior to the casting of the concrete mix.
  • the rail fastener made of metal is attached in place into the casting mold by means of a magnet fastener, said magnet fastener being formed as a part of the casting mold.
  • the solution in accordance with the invention is advantageously applicable for different type and sized rail fasteners.
  • the attachment of the rail fastener into the casting mold can be performed easily and quickly, whereby many labor- and time-consuming phases are omitted from the manufacturing process of the railway sleepers, which significantly speeds up the manufacturing process of the railway sleepers and reduces the physical load of the personnel in the manufacturing process.
  • the method in accordance with the invention is characterized by what is stated in the characterizing part of Claim 1, and the apparatus in accordance with the present invention is characterized by what is stated in the characterizing part of Claim 3.
  • Figure 1 shows the placing of rail fasteners 2 into the casting mold 1 of railway sleepers.
  • the rail fasteners 2 have been placed into the mold 1 on the area of the end portions of the railway sleeper to be cast, and they are placed to the mold so that the parts to be used for fastening the rails come through the openings in the mold to the outside of the mold.
  • the railway sleepers are cast into the mold of Figure 1 so that they are in the mold upside down, whereby the upper edge of the mold defines the lower surface of the railway sleeper.
  • Figure 2 shows a solution in accordance with the invention for attaching the rail fastener 2 into the casting mold 1 of the railway sleeper.
  • the rail fastener 2 is attached to the casting mold 1 by means of a magnet 3.
  • the magnet 3 is attached to an arm 4 for example with a bolt and nut.
  • a rubber plate 5 is placed between the magnet 3 and arm 4.
  • the arm 4 is attached hinged through a support 6 to the casting mold 1 of the railway sleeper.
  • a spring 7 is provided between the arm 4 and the casting mold 1, said spring 7 drawing the arm towards the bottom of the casting mold.
  • the distance of the magnet 3 from the bottom of the mold 1 is adjusted by means of a screw 8 and nuts 9, 9'. Cup springs 10, 10' are placed between the nuts 9, 9' and the arm 4.
  • the rail fastener 2 is placed into an opening in the mold 1 of the railway sleeper, whereby it immediately attaches to the magnet 3 with its outer surface.
  • the distance of the magnet 3 from the bottom of the mold 1 is preadjusted to be suitable for the respective rail fastener type with the screw 8 and the nuts 9, 9'.
  • the railway sleeper is removed from the mold 1 by lifting it upwards, whereby the grip of the magnet 3 loosens from the rail fastener 2.
  • the spring 7 keeps the magnet in the right place for placing the next rail fastener, which can also be implemented automatically.
  • Cup springs 10, 10' between the arm 4 and nuts 9, 9' allow a small flexibility of the arm position in a situation, where the rail fasteners 2 to be used differ slightly from each other or there have been differences in the manufacturing.
  • the rubber plate 5 between the magnet 3 and the arm 4 allows a small tilt of the magnet making it adopt to the deviations of the outer surface of the rail fastener 2.
  • the spring 7 springs and thus helps putting the rail fastener in place.
  • Figure 3 shows one alternative solution in accordance with the invention for attaching rail fasteners 2 into the casting mold 1 of railway sleepers.
  • the solution of Figure 2 is modified so that the spring is replaced with a threaded rod 11, an adjustment nut 12 and a washer 13.
  • the gap h is adjusted so that not a bigger gap is formed between the outer surface 2 of the rail fastener and the magnet 3, than what the attractive force of the magnet can overcome for attaching to the outer surface of the rail fastener, when the rail fastener is in its place in the casting mold.
  • the correct distance of the magnet 3 from the lower surface of the casting mold is adjusted by means of nuts 9, 9' and the screw 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP06397028A 2006-01-18 2006-12-19 Procédé et appareil de fabrication d'une traverse de chemin de fer faite de béton Withdrawn EP1810807A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20060041A FI118184B (fi) 2006-01-18 2006-01-18 Menetelmä ja laitteisto betonisen ratapölkyn valmistamiseksi

Publications (2)

Publication Number Publication Date
EP1810807A2 true EP1810807A2 (fr) 2007-07-25
EP1810807A3 EP1810807A3 (fr) 2012-05-09

Family

ID=35883852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06397028A Withdrawn EP1810807A3 (fr) 2006-01-18 2006-12-19 Procédé et appareil de fabrication d'une traverse de chemin de fer faite de béton

Country Status (2)

Country Link
EP (1) EP1810807A3 (fr)
FI (1) FI118184B (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR851197A (fr) * 1938-03-05 1940-01-04 Dispositif pour le moulage des traverses en acier et béton armé pour voies ferrées
JPH06182751A (ja) * 1992-12-15 1994-07-05 Iwai Kinzoku Kogyo Kk 建材ボードの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR851197A (fr) * 1938-03-05 1940-01-04 Dispositif pour le moulage des traverses en acier et béton armé pour voies ferrées
JPH06182751A (ja) * 1992-12-15 1994-07-05 Iwai Kinzoku Kogyo Kk 建材ボードの製造方法

Also Published As

Publication number Publication date
FI118184B (fi) 2007-08-15
FI20060041A0 (fi) 2006-01-18
EP1810807A3 (fr) 2012-05-09

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