EP2336423A2 - Elément d'amortissement pour la construction de voies ferrées ayant une couche de glissement, système de rails pour voie ferrée doté d'un élément d'amortissement et procédé de fabrication d'un élément d'amortissement - Google Patents

Elément d'amortissement pour la construction de voies ferrées ayant une couche de glissement, système de rails pour voie ferrée doté d'un élément d'amortissement et procédé de fabrication d'un élément d'amortissement Download PDF

Info

Publication number: EP2336423A2
Authority: EP; European Patent Office
Prior art keywords: damping element; rail; sliding layer; layer; wear
Prior art date: 2009-12-21
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.): Granted

Application number

EP10194582A

Other languages

German (de)

English (en)

Other versions

EP2336423B1 (fr

EP2336423A3 (fr

Inventor

Herwig Miessbacher

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.)

Semperit AG Holding

Original Assignee

Semperit AG Holding

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.)

2009-12-21

Filing date

2010-12-10

Publication date

2011-06-22

2010-12-10 Application filed by Semperit AG Holding filed Critical Semperit AG Holding

2011-06-22 Publication of EP2336423A2 publication Critical patent/EP2336423A2/fr

2013-09-25 Publication of EP2336423A3 publication Critical patent/EP2336423A3/fr

2020-04-29 Application granted granted Critical

2020-04-29 Publication of EP2336423B1 publication Critical patent/EP2336423B1/fr

Status Active legal-status Critical Current

2030-12-10 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
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- 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
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
- E01B9/683—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material layered 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
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape

Definitions

the present invention relates to a damping element for track construction, which in particular a rail intermediate layer is to be understood, which is arranged between a railway sleeper and a vibration-damping rail track to be stored on the railway sleeper.
the invention further relates to a railroad track system which includes such a damping element, and to a method for producing such a damping element.
damping elements or rail pads generally serve the elastic coupling between the railroad track, hereinafter referred to as “rail”, and railroad tie, hereinafter referred to as “threshold”.
rail generally serve the elastic coupling between the railroad track, hereinafter referred to as “rail”, and railroad tie, hereinafter referred to as “threshold”.
threshold railroad tie
a rail already laid on the threshold is welded at intervals of about 150 m.
the rail Prior to welding, the rail must be pre-tensioned so that the rail does not experience any distortion, even with large temperature changes. For the tension, it is necessary to pull the ends of the rails from a few cm up to about 3 m.
damping elements which are made of a soft material and thus - especially at higher temperatures - have a high coefficient of friction often occurs the problem on, that these out of the space between the rail and the lock out or be pulled out.
the present invention seeks to provide a damping element for track construction for arrangement between a railway sleeper and a railroad track, on the one hand good elastic deflection of the rail and on the other hand allows good decoupling between rail and threshold, without thereby in track construction There is a significant risk that the damping element from the gap between the rail and the threshold moves out or is pulled out. Furthermore, it is an object of the invention to provide a rail track system which includes a damping element as indicated above. In addition, a method is to be specified with which a damping element described above can be produced.
an untreated material of the damping element is hereinafter referred to as such material to which no special surface treatment methods have been applied and in which no further additives or reinforcements, to achieve over elasticity and vibration damping properties were added.
the damping element provided for the track construction in particular a rail intermediate layer which is to be arranged between a railway sleeper and a rail track to be supported vibration-damped on the railway sleeper, has a first contact surface which, in the assembled state, comes into contact with the rail track and is designed such that it serves as a friction-reducing sliding layer.
“Reibungsmindernd” means here that arranged thereon or fixed rail track with as low as possible - but at least less than would be the case with untreated material of the damping element - friction can move or move on the damping element.
the sliding layer so that it has a low roughness or roughness compared to the untreated material of the damping element, in other words is smooth.
the friction surface can be reduced by local elevations, beads or nubs, or depressions, the friction surface, so that thereby the resulting total friction force is reduced because elastomers do not follow the Coulomb's friction law.
the height of the elevations or recesses in the range of about 0.1 to 0.5 mm.
the sliding layer is applied to the surface of the damping element, without the underlying material of the damping element is changed or needs to be changed.
a damping element can be manufactured in a simple and cost-effective manner.
a particularly simply constructed damping element can be obtained in that the sliding layer contains soap suds, silicone-containing liquid, lubricating varnish or a mixture of these substances, the application of these substances being carried out, for example, by spraying, rolling or brushing.
the overlay can also be formed by flocking with short staple textile fibers of cotton, polyamide (PA) or polyester (PETP).
the sliding layer is formed of hard rubber and is optionally provided with an internal lubricant, for example of a medium incompatible with a polymer matrix (for example aromatic / naphthenic oils, such as LOXAMID®).
an internal lubricant for example of a medium incompatible with a polymer matrix (for example aromatic / naphthenic oils, such as LOXAMID®).
the sliding layer can also be made of plastic (eg. PE, PP, PA, PETP or PTFE), fabric (for example, PA fabric) and / or metal (such as sheet metal).
the sliding layer is formed by subsequent modification of the surface, such as by halogenation and / or fluorination. Flaming or plasma or corona treatment is also possible.
the sliding layer can be formed.
the sliding layer is formed from a combination of the substances explained above.
the damping element has a second contact surface, with which it rests on the railroad tie and which is formed as a wear-resistant, so subject to low wear, or resistant to wear resistant layer.
wear is preferably wear by friction (abrasion) seen, which takes place when the damping element translationally moves relative to the railway sleeper or at the moment of crossing a train and the vertical forces occurring in the horizontal direction, ie in the plane of contact surface to the railway sleeper , expands and so the outer parts of the damping element are translationally moved against the railway sleeper.
the wear-resistant layer characterized in that it compared to the untreated material of the damping element, preferably elastomer, is less affected by friction, abrasion or similar wear mechanisms.
the object underlying the invention is also achieved with a rail track system comprising a railway sleeper, a railway rail mounted on the railroad track rail and a damping element according to the above description, which is arranged between the railway sleeper and the railroad track and whose sliding layer bears against the railroad track.
a railway track system is reliably ensured by the slippery layer provided on the damping element, that the damping element is not pulled out of the space between the railroad track and the railroad tie at the track construction.
the object underlying the invention is achieved by a method for producing a damping element for track construction, which is characterized in that a friction-reducing sliding layer is formed on a first contact surface of the damping element.
This friction-reducing sliding layer is advantageously formed by a two-component injection molding, ie in the same manufacturing step as the damping element.
the rail 8 undergoes a relative movement to the damping element 10, for example in track construction or due to temperature and associated changes in length, it can easily slide on the sliding layer 22 due to the sliding layer 22 of the damping element 10, since the sliding layer 22 is designed to reduce friction, ie represents a friction pairing with the rail 8 with a low coefficient of friction.
the sliding layer 22 is designed to reduce friction, ie represents a friction pairing with the rail 8 with a low coefficient of friction.
the friction-reducing sliding layer can be advantageously formed by a modification of the surface, such as by chlorination or fluorination.
the sliding layer of hard rubber possibly with the addition of an internal lubricant
plastic, fabric or metal be formed or contain one or more of these substances.
a low-wear layer 32 is formed, precisely between the lower nubs 17, and depressions.
the wear layer 32 ensures that even if the rail 8 despite the sliding layer 22, the damping element 10 moves with a movement of the rail 8, the damping element 10 is not or not strongly worn by the corresponding movement on the threshold 6 and therefore only subject to extremely low wear. Thus, it rarely or even never needs to be replaced for wear reasons.
the low-wear layer 32 may be formed of plastic, fabric, and / or PU paint and also contain a wear protection mixture.
the friction-reducing sliding layer 22 and the low-wear layer 32 may be arranged not only in regions on the respective designated contact surfaces 20 and 30 or in other areas arranged, but also over the entire surface, that is, the sliding layer 22 and the low-wear layer 32 on the entire or at least substantially the entire surface of the damping element 10 extend.
Fig. 2 shows in perspective from below a second embodiment of the damping element 10 according to the invention, which differs from the first embodiment in that it has only upper nubs, or elevations 18.
a low-wear layer 32 is provided at the bottom of the nubs, or elevations 18 and at the bottom of a border 19, which has the same vertical extent as the nubs 18 (see also Fig. 4 ).
a low-wear layer 32 is disposed at those surfaces of the underside of the damping element 10, which come to rest on a railroad tie, not shown, while at those locations of the underside of the damping element 10, where neither knobs, or elevations 18 nor the Outline 19 are provided, no low-wear layer 32 is present.
a low-wear layer 32 is shown only on a nub, or elevation 18. This ensures that wherever the damping element 10 is in contact with the threshold 6, the low-wear layer 32 is provided.
a projection 14 or 15 projects downwards - ie at a substantially right angle to the extension direction of the damping element 10.
These projections 14, 15 are designed so that they By means of these rib-like projections 14, 15 an additional contribution is made that the damping element 10 can not be pulled out of the gap between the rail 8 and the sill 6. From the illustration from Fig. 3 it can be seen that the upper surface of the damping element 10, which forms a contact surface 20 to the overlying rail 8, a friction-reducing sliding layer 22 is formed with a substantially rectangular shape.
Type and application of the friction-reducing sliding layer 22 and the low-wear layer 32 in this embodiment can basically exactly as in the first embodiment and therefore need no further explanation.
the damping element 10 can be produced by means of a two-component injection molding process, in which the friction-reducing sliding layer is produced together with the main body of the damping element 10-ie, the damping element 10 without additional layers. If, in addition to the sliding layer 22, a low-wear layer 32 is to be produced, the use of a three-component injection molding process is appropriate. However, it is also possible for the sliding layer 22 and / or the low-wear layer 32 to be subsequently applied only after the basic body of the damping element 10 has been produced.
the main body of the damping element 10 is usually made of a rubber in a suitable Shore hardness.
Figs. 5a and 5b show a further preferred exemplary embodiments of a damping element 10 according to the invention in these a defined surface structure is provided depending on the nature of the rail underside (eg. According to VDI 3400, electric discharge process). Furthermore, the friction surface is reduced by local elevations 40 (for example in the form of beads or nubs), as a result of which the resulting total friction force is reduced since elastomers do not follow the Coulomb friction law. Particularly advantageously, the height of the elevations or corresponding recesses in the range of about 0.1 to 0.5 mm.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Railway Tracks (AREA)
Vibration Prevention Devices (AREA)

EP10194582.2A 2009-12-21 2010-12-10 Elément d'amortissement pour la construction de voies ferrées ayant une couche de glissement, système de rails pour voie ferrée doté d'un élément d'amortissement et procédé de fabrication d'un élément d'amortissement Active EP2336423B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102009055070.4A DE102009055070B4 (de)	2009-12-21	2009-12-21	Dämpfungselement für den Gleisbau mit Gleitschicht und ein Eisenbahnschienensystem mit Dämpfungselement

Publications (3)

Publication Number	Publication Date
EP2336423A2 true EP2336423A2 (fr)	2011-06-22
EP2336423A3 EP2336423A3 (fr)	2013-09-25
EP2336423B1 EP2336423B1 (fr)	2020-04-29

Family

ID=43769101

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP10194582.2A Active EP2336423B1 (fr)	2009-12-21	2010-12-10	Elément d'amortissement pour la construction de voies ferrées ayant une couche de glissement, système de rails pour voie ferrée doté d'un élément d'amortissement et procédé de fabrication d'un élément d'amortissement

Country Status (2)

Country	Link
EP (1)	EP2336423B1 (fr)
DE (1)	DE102009055070B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014177419A1 (fr) *	2013-04-29	2014-11-06	Semperit Ag Holding	Assiette de rail
EP3546649A1 (fr) *	2018-03-27	2019-10-02	Semperit AG Holding	Couche intermédiaire destinée à être agencée entre un rail et un seuil, et son procédé de fabrication
EP3546650A1 (fr) *	2018-03-27	2019-10-02	Semperit AG Holding	Système, procédé, dispositif et traverse pour maintenir un rail

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102014216543A1 (de) *	2014-08-20	2016-02-25	Semperit Ag Holding	Zwischenlage
CN107366200B (zh) *	2017-08-03	2023-08-15	华东交通大学	一种颗粒阻尼耗能减振道砟垫
DE102018100837A1 (de)	2018-01-16	2019-07-18	Vossloh-Werke Gmbh	Zwischenplatte zur Anordnung zwischen einem Untergrund und einer Schiene für ein Schienenfahrzeug in einem Schienenbefestigungspunkt sowie Schienenbefestigungspunkt
DE102021117800A1 (de)	2021-07-09	2023-01-12	Semperit Ag Holding	Zwischenlage, System zur Befestigung einer Zwischenlage auf einer Bahnschwelle und Verfahren zur Herstellung einer Zwischenlage
CN113931016A (zh) *	2021-10-28	2022-01-14	株洲时代新材料科技股份有限公司	一种轨道减震器

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DE2817533C2 (de) *	1978-04-21	1984-10-11	Krauss-Maffei AG, 8000 München	Schienenanordnung
DE19623523A1 (de)	1996-06-13	1998-01-02	Vorwerk & Sohn	Vorrichtung zur Auflagerung von Schienen, insbesondere Eisenbahnschienenauflager
GB2334738A (en)	1998-02-28	1999-09-01	Glynwed Pipe Systems Ltd	Rail pad
DE102004008633A1 (de)	2004-02-21	2005-09-08	Ks Gleitlager Gmbh	Gleitlagerverbundwerkstoff
DE202006008104U1 (de)	2006-05-18	2006-07-20	Seifert, Dietrich	Vorrichtung zur Vibrations- und Schalldämpfung von an Betonfundamenten befestigten Schienen für Züge, insbesondere Hochgeschwindigkeitszüge
DE102008007495A1 (de) *	2008-02-05	2009-08-06	Semperit Ag Holding	Unterlegplatte und Verfahren zu deren Herstellung

2009
- 2009-12-21 DE DE102009055070.4A patent/DE102009055070B4/de not_active Expired - Fee Related
2010
- 2010-12-10 EP EP10194582.2A patent/EP2336423B1/fr active Active

Non-Patent Citations (1)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014177419A1 (fr) *	2013-04-29	2014-11-06	Semperit Ag Holding	Assiette de rail
US9932711B2 (en)	2013-04-29	2018-04-03	Semperit Ag Holding	Rail pad
EP3546649A1 (fr) *	2018-03-27	2019-10-02	Semperit AG Holding	Couche intermédiaire destinée à être agencée entre un rail et un seuil, et son procédé de fabrication
EP3546650A1 (fr) *	2018-03-27	2019-10-02	Semperit AG Holding	Système, procédé, dispositif et traverse pour maintenir un rail

Also Published As

Publication number	Publication date
DE102009055070B4 (de)	2022-10-20
EP2336423B1 (fr)	2020-04-29
DE102009055070A1 (de)	2011-06-22
EP2336423A3 (fr)	2013-09-25

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