EP2431520B1 - Schraubdübel für Schienenbefestigung - Google Patents

Schraubdübel für Schienenbefestigung Download PDF

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Publication number
EP2431520B1
EP2431520B1 EP10177840.5A EP10177840A EP2431520B1 EP 2431520 B1 EP2431520 B1 EP 2431520B1 EP 10177840 A EP10177840 A EP 10177840A EP 2431520 B1 EP2431520 B1 EP 2431520B1
Authority
EP
European Patent Office
Prior art keywords
cylindrical ring
screw
screw anchor
plastic
anchor according
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
EP10177840.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2431520A1 (de
Inventor
Winfried BÖSTERLING
Michael Harrass
Dierk Bressel
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.)
Vossloh Werke GmbH
Original Assignee
Vossloh Werke 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
Priority to PL10177840T priority Critical patent/PL2431520T3/pl
Application filed by Vossloh Werke GmbH filed Critical Vossloh Werke GmbH
Priority to ES10177840.5T priority patent/ES2544261T3/es
Priority to EP10177840.5A priority patent/EP2431520B1/de
Priority to CN2011800559265A priority patent/CN103314157A/zh
Priority to PCT/EP2011/066399 priority patent/WO2012038464A1/de
Priority to ARP110103439A priority patent/AR083067A1/es
Priority to EA201390416A priority patent/EA201390416A1/ru
Priority to EP11757895.5A priority patent/EP2619368A1/de
Priority to US13/825,147 priority patent/US20130228634A1/en
Publication of EP2431520A1 publication Critical patent/EP2431520A1/de
Application granted granted Critical
Publication of EP2431520B1 publication Critical patent/EP2431520B1/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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
    • E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers

Definitions

  • the invention relates to a screw plug for setting in concrete in a railway sleeper or slab track according to the preamble of claim 1. Furthermore, the invention relates to a railway sleeper or slab track with at least one screw according to the invention.
  • Screw anchors for setting in concrete in a railway sleeper are used in railway construction to connect rail and sleeper.
  • the rail fastening is connected to the threshold via sleeper screws.
  • the screw anchors are often made of plastic and can be poured in the production of a concrete sleeper or a slab track in this.
  • One reason that the dowels are often made of plastic is that the sleeper should be electrically insulated from the threshold and that plastic is a cheap, easy-to-process and use flexible material.
  • a disadvantage that arises in this case is that the plastic screw plugs often have different mechanical and physical properties than the material surrounding them.
  • many plastics, and also the materials commonly used as dowel material have a coefficient of thermal expansion about 10 times greater than concrete. This can lead to disadvantages especially in concrete sleeper production, but also in later operation, as one with the concrete initially positively in contact dowel expands more when the temperature increases than the surrounding concrete, so that pressure is exerted on the concrete. At high thermal stresses, cracks and gaps around the dowel or radially may occur in the concrete.
  • the GB 961 876 A discloses features falling within the preamble of claim 1.
  • the GB 961 877 A and the DE 36 22 860 A1 form further state of the art.
  • the invention has for its object to develop a dowel for setting in concrete in a railway sleeper or slab track, which is characterized by a reduced stress build-up in the surrounding concrete material.
  • the screw according to the invention for the concreting in a slab track or railway sleeper is characterized by the fact that it has a threaded portion with externally arranged on the screw dowel external threads and inside arranged in the screw dowel internal threads and further comprises a located in the installed state near the dowel opening upper portion without external thread. It is further characterized by the fact that it comprises two components of different materials, namely one Plastic body and a cylindrical ring made of a steel material, which is attached to the base body in a positive and / or non-positive fit.
  • the screw anchor according to the invention has the advantage that due to the cylindrical ring made of a steel material by the expansion of the plastic resulting voltages are intercepted by this ring and thus can not spread into the concrete material. This ensures that fewer and smaller cracks occur in the concrete material and thus the concrete sleeper reaches a longer service life. As a result, the advantageous properties of two materials in a hard / soft combination are used.
  • Such a dowel can be prepared by inserting the cylindrical ring as an insert into an injection mold, which can take place automatically, whereby plastic material can be injected in such a way that the ring surrounds the dowel from the outside.
  • a further preferred embodiment is that the cylindrical ring with the main body in the installed position at the top extends into the region of an insertion opening for a sleeper screw, but there is preferably covered with a plastic collar as part of the anchor.
  • the plastic collar should cover the cross section of the cylindrical ring and have a thickness of 3 to 5 mm. This ensures that there is sufficient electrical insulation between the sleeper screw and the cylindrical ring, and also counteracts the corrosion of the steel. This has the advantage that the strongest temperature fluctuations that occur at the surface of the railway sleeper or slab track, are best intercepted by such a positioned ring.
  • the ring is attached by a corresponding adjustment of the inner diameter positive and / or non-positively connected to the main body of the anchor.
  • the ring has a wall thickness between 0.5 mm and 5 mm. This has the advantage that the ring is thick enough to absorb the expansion of the plastic material while at the same time being thin enough to be cost and material efficient.
  • the ring extends in the installed position down to the upper beginning of the external threads.
  • the advantage here is that the ring can enclose as much material as possible and thus prevent the expansion of as much plastic material as possible and thus crack formation, while at the same time saving steel, since the ring is present only in the (upper) region in which the strongest temperature differences occur.
  • the lower plastic area with the outer threads serves to fix the screw in the concrete.
  • the thermal expansion coefficient of the steel material of the cylindrical ring is at least 10 times smaller than that of the plastic material of the base body, which it surrounds. This has the advantage that the steel ring expands only slightly relative to the plastic with temperature fluctuations and therefore the ring can fulfill its function, namely to prevent the expansion of the plastic material even at high temperatures, to a particular extent.
  • the linear thermal expansion coefficient of the material of the cylindrical ring is less than 3 ⁇ 10 -5 L / K.
  • a further preferred embodiment is that the thermal expansion coefficient of the steel material corresponds approximately to that of the concrete of the threshold. This has an advantageous effect that then concrete and steel are very similar in terms of their thermal expansion coefficient and thus no tensions between these two materials in temperature fluctuations.
  • a screw plug is preferred in which the steel material is characterized by such a large modulus of elasticity and hardness that the attached to the dowel cylindrical ring when heated within the temperature range that occurs during normal use, not or only slightly of expand the expanding plastic of the body. This high strength of the steel thus compressive stresses between dowels and surrounding concrete are prevented.
  • the modulus of elasticity of the material of the cylindrical ring is at most 150 GPa.
  • the screw plug is characterized in that its external thread is a round thread.
  • a thread is advantageously characterized by easy manufacturability and high strength of the resulting connection with the concrete.
  • a round thread has proven to be very favorable in terms of traction at radial stresses between screw and concrete material.
  • the screw plug is characterized in that the cylindrical ring is thinly coated with plastic.
  • the steel material of the cylindrical ring is protected from external influences (eg rain) and thus corrosion, which has an advantageous effect on the long-term life of the ring.
  • it is not visible from the outside.
  • the dowel and the screw possibly contained therein are electrically insulated from the surrounding concrete, which is advantageous for sleepers to be used on electrified tracks.
  • the said sheath can be achieved by injection molding in a simple manner by injection molding.
  • a further preferred embodiment of the invention is that a railway sleeper or slab track is provided with at least one screw plug according to one of the preceding embodiments. This has the advantage that the railway sleeper is characterized by an increased service life due to the advantages already mentioned.
  • FIG. 1 illustrated erdübel 10 consists of the base body 22 made of plastic material and is divided into an upper portion 16 without external thread, a central portion 14 with externally arranged on the screw dowel 10 external threads 18 and internally in the screw dowel arranged internal threads 28 and a lower portion 12.
  • the internal thread can also be designed as a round thread, but it may be in terms of the thread pitch and thread pitch of the external thread 18 differ.
  • the upper portion 16 is substantially cylindrical in shape and formed integrally with the threaded portion 14 as well as the lower portion 12.
  • form-fitting elements may be provided in the form of extending in the longitudinal direction of the screw dowel ribs, which prevents or at least complicates after turning the screw with the concrete mass of a railway sleeper or slab track radial twisting of the screw anchor relative to the surrounding concrete material.
  • the in FIG. 1 illustrated erdübel is provided with a cylindrical ring 20 made of a steel material which extends along the upper portion 16 and flush with the upper opening 26. It consists of steel, although it can also consist of another material, which is characterized by a high modulus of elasticity and a coefficient of thermal expansion, which corresponds approximately to that of concrete.
  • the cylindrical ring 20 is connected to the base body 22 of the screw plug by the upper portion 16 of the base body 22 is injected into the cylindrical ring 20.
  • the screw plug is thus made by the cylindrical ring is inserted into the mold and then the plastic material of the body 22 according to the in FIG. 1 molded molding is injected.
  • the cylindrical ring has a wall thickness between 0.5 mm and 5 mm, so that sufficient strength is ensured at low material usage to absorb the expansion of the plastic material.
  • FIG. 1 closes the installation position shown in the figure with a substantially vertical orientation of the longitudinal axis of the screw plug of the cylindrical ring 20 at the top flush with the upper portion 16 of the body.
  • the plastic collar has a thickness of 3 mm to 5 mm.
  • the function of a plastic collar over the cylindrical ring is to provide sufficient electrical insulation between a tie screw threaded into the anchor and the cylindrical ring. Furthermore, the plastic collar counteracts the corrosion of the ring.
  • FIG. 2 The embodiment illustrated corresponds essentially to that according to FIG. 1 Therefore, the reference numerals of this figure are adopted here, but differs by an additional coating of the steel ring in the form of plastic collar 24. This coating is carried out on the outer circumference of the entire steel ring and prevents the steel ring comes into direct contact with the environment and thus corroded or produces an undesirable electrical contact of a screw screwed into the dowel with the threshold or slab track.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Road Paving Structures (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP10177840.5A 2010-09-21 2010-09-21 Schraubdübel für Schienenbefestigung Active EP2431520B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES10177840.5T ES2544261T3 (es) 2010-09-21 2010-09-21 Taco roscado para fijación de carril
EP10177840.5A EP2431520B1 (de) 2010-09-21 2010-09-21 Schraubdübel für Schienenbefestigung
PL10177840T PL2431520T3 (pl) 2010-09-21 2010-09-21 Kotwa śrubowa do zamocowania szyn
PCT/EP2011/066399 WO2012038464A1 (de) 2010-09-21 2011-09-21 Schraubdübel für schienenbefestigung
CN2011800559265A CN103314157A (zh) 2010-09-21 2011-09-21 用于固定钢轨的螺旋型销钉
ARP110103439A AR083067A1 (es) 2010-09-21 2011-09-21 Anclaje roscado para integrarse al hormigon en un durmiente de ferrocarril o via fija, durmiente o via fija con dicho anclaje
EA201390416A EA201390416A1 (ru) 2010-09-21 2011-09-21 Винтовой дюбель для рельсового скрепления
EP11757895.5A EP2619368A1 (de) 2010-09-21 2011-09-21 Schraubdübel für schienenbefestigung
US13/825,147 US20130228634A1 (en) 2010-09-21 2011-09-21 Screw dowel for fastening rails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10177840.5A EP2431520B1 (de) 2010-09-21 2010-09-21 Schraubdübel für Schienenbefestigung

Publications (2)

Publication Number Publication Date
EP2431520A1 EP2431520A1 (de) 2012-03-21
EP2431520B1 true EP2431520B1 (de) 2015-06-17

Family

ID=43508807

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10177840.5A Active EP2431520B1 (de) 2010-09-21 2010-09-21 Schraubdübel für Schienenbefestigung
EP11757895.5A Withdrawn EP2619368A1 (de) 2010-09-21 2011-09-21 Schraubdübel für schienenbefestigung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11757895.5A Withdrawn EP2619368A1 (de) 2010-09-21 2011-09-21 Schraubdübel für schienenbefestigung

Country Status (8)

Country Link
US (1) US20130228634A1 (zh)
EP (2) EP2431520B1 (zh)
CN (1) CN103314157A (zh)
AR (1) AR083067A1 (zh)
EA (1) EA201390416A1 (zh)
ES (1) ES2544261T3 (zh)
PL (1) PL2431520T3 (zh)
WO (1) WO2012038464A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2576907B1 (de) * 2010-05-26 2015-01-14 Schwihag Ag Kunststoffschraubdübel zur befestigung einer schiene auf einer schwelle
DE102012200462A1 (de) 2012-01-13 2013-07-18 Hilti Aktiengesellschaft Spreizanker
DE102012107732A1 (de) * 2012-08-22 2014-05-15 Vossloh-Werke Gmbh Kunststoffdübel für die Befestigung einer Schiene und Kombination aus einem solchen Kunststoffdübel und einer Schwellenschraube
CN106151208A (zh) * 2016-06-29 2016-11-23 杭州斯泰新材料技术有限公司 一种化学栓及制造方法
US20210008462A1 (en) * 2018-01-04 2021-01-14 KidKraft, Inc. Play structure and play structure assembly methods
DE102018117453A1 (de) * 2018-07-19 2020-01-23 Schwihag Ag Gleis- Und Weichentechnik Schienenbefestigungssystem
KR102307075B1 (ko) * 2020-11-26 2021-10-01 성화시스템챤넬(주) 전산볼트가 고정되어진 공동 콘크리트 블록 구조체 및 이의 앙카시공방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961877A (zh) * 1900-01-01
GB865120A (en) * 1958-05-07 1961-04-12 Samuel Tippett Improvements relating to the holding down of rails on sleepers
GB961876A (en) * 1961-12-15 1964-06-24 Samuel Tippett Improvements relating to sleeves for use in holding down railway lines on sleepers
DE3622860A1 (de) * 1986-07-08 1988-01-28 Wayss & Freytag Ag Einbauteile aus kunststoff fuer betonschwellen
FR2677677B1 (fr) * 1991-06-17 1996-07-05 Urba Insert pour ancrage de fixation de traverses de chemin de fer.
DE4230428A1 (de) * 1991-12-09 1993-06-17 Hilti Ag Huelse zur erhoehung des haltewertes einer schraube
DE19601810A1 (de) * 1996-01-19 1997-07-24 Hilti Ag Ankerhülse für Verbundanker und Verfahren zur Erstellung von korrosionsbeständigen Befestigungen
CN2661748Y (zh) * 2003-01-23 2004-12-08 株洲时代新材料科技股份有限公司 混凝土轨枕用塑料套管
CN101058966A (zh) * 2006-04-21 2007-10-24 上海颉灏机械有限公司 一种混凝土岔枕用预埋套管及其螺旋壳体的制造方法
ES2283235B1 (es) * 2007-04-04 2009-03-01 Mondragon Soluciones, S.L.U. Vaina para sujeciones de railes ferroviarios, procedimiento para reemplazar dicha vaina en una traviesa y utiles para ejecutar dicho procedimiento.
ES2571941T3 (es) * 2009-12-09 2016-05-27 Vossloh Werke Gmbh Taco roscado para fijaciones de carril
EP2576907B1 (de) * 2010-05-26 2015-01-14 Schwihag Ag Kunststoffschraubdübel zur befestigung einer schiene auf einer schwelle

Also Published As

Publication number Publication date
AR083067A1 (es) 2013-01-30
US20130228634A1 (en) 2013-09-05
EP2431520A1 (de) 2012-03-21
WO2012038464A1 (de) 2012-03-29
ES2544261T3 (es) 2015-08-28
EA201390416A1 (ru) 2013-08-30
CN103314157A (zh) 2013-09-18
EP2619368A1 (de) 2013-07-31
PL2431520T3 (pl) 2015-11-30

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