EP4179145A1 - Anordnung zur kontinuierlichen elastischen lagerung von schienen - Google Patents
Anordnung zur kontinuierlichen elastischen lagerung von schienenInfo
- Publication number
- EP4179145A1 EP4179145A1 EP21754923.7A EP21754923A EP4179145A1 EP 4179145 A1 EP4179145 A1 EP 4179145A1 EP 21754923 A EP21754923 A EP 21754923A EP 4179145 A1 EP4179145 A1 EP 4179145A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- arrangement
- elements
- foot
- bracing
- 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.)
- Granted
Links
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
- E01B9/60—Rail fastenings making use of clamps or braces supporting the side of the rail
-
- 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
- E01B9/62—Rail fastenings incorporating resilient supports
Definitions
- the invention relates to an arrangement for the continuous elastic mounting of rails for rail vehicles.
- Continuous rail supports are supports for rails in which the rails with their rail feet do not just rest at certain points or in sections, but rather on an essentially continuous base.
- continuous elastic rail supports are also known in which the rail is supported under the head and laterally and the rail foot is free of forces. Installation-related height differences are to be compensated for with a continuous elastic rail foot bearing. In addition, they also serve to dampen vibrations, for example to avoid noise.
- Arrangements for the continuous elastic mounting of rails for rail vehicles are known in principle, for example from WO 1995/020069 A1 and DE 4427237 A1.
- the invention provides an arrangement for the continuous elastic mounting of rails for rail vehicles, comprising a) a rail with a rail head having a rail head underside, a rail foot and a rail web connecting the rail head and the rail foot, with a rail chamber being formed on both sides of the rail web between the rail head underside and the upper side of the rail foot, b) two on both sides of the rail web in the rail chambers arranged side profiles made of elastomeric material, which extend in the longitudinal direction of the rail and rest against the underside of the rail head, the rail web and a part of the rail foot, c) two supporting elements arranged on both sides of the rail web, extending in the longitudinal direction of the rail and supporting the side profiles in the direction of the rail, and d) two bracing elements which are arranged on both sides of the rail web and extend in the longitudinal direction of the rail, which brace the supporting elements against one another in the direction of the rail.
- a “rail” is understood here as a railway rail, for example a grooved rail, Vignole rail or crane rail.
- outside and inside in relation to the arrangement according to the invention refer here, unless the context clearly indicates otherwise, to the position of the essentially centrally arranged rail, where “outside” means a pointing away from the rail, “Inside” means an orientation pointing towards the rail.
- an “outer” surface of a bracing element is further away from the rail in the transverse direction to the rail than an “inner” surface of the bracing element.
- “Inner” surfaces of two bracing elements running parallel to the rail on both sides face each other, while the "outer” surfaces point away from each other.
- a “side profile” is understood here to mean a damping profile arranged laterally from the rail in the rail chamber, ie the area between the underside of the rail head and the top side of the rail foot.
- a side profile is preferably made of an elastomeric material or a blend of elastomeric materials.
- a “side profile that fills the rail chamber” is understood to mean a side profile with sufficient volume so that it completely occupies at least the spatial area between the underside of the rail head and the top side of the rail foot, and not a comparatively thin one strip-shaped profile fitting the underside of the rail head, the rail web and the rail foot.
- a side profile can be solid, or pores or channels, eg
- a side profile can consist of one or more different elastomeric materials and can be produced, for example, by means of coextrusion of these different materials.
- a “foot profile” is understood here to mean an insulating and/or damping profile that essentially encloses the rail foot.
- a foot profile is arranged on the underside of the rail foot, preferably encompasses the side of the rail foot and preferably also covers at least part of the top side of the rail foot.
- a foot profile is preferably made of an elastomeric material or a mixture of elastomeric materials.
- a foot profile is used, for example, to dampen vibrations, but also to electrically insulate the rail from stray currents.
- An “elastomer profile” is understood to mean a profile made of elastomeric material.
- elastomeric material is understood here to mean a material that has rubber-elastic properties, ie a dimensionally stable but elastically deformable plastic or plastic mixture whose glass transition point is below room temperature.
- elastomeric materials are natural rubber (NR), styrene butadiene rubber (SBR), butyl rubber (IIR), ethylene propylene rubber (EPDM), butadiene acrylonitrile rubber (NBR), hydrogenated acrylonitrile rubber (HNBR), chloroprene rubber (CR), chlorosulfonated polyethylene (CSM), polyacrylate rubber (ACM), polyurethane rubber (PU), silicone rubber (Q), fluorosilicone rubber (MFQ) and fluororubber (FPM).
- natural rubber NR
- SBR styrene butadiene rubber
- IIR ethylene propylene rubber
- EPDM butadiene acrylonitrile rubber
- HNBR hydrogenated acrylonitrile rubber
- CSM chloro
- EPDM SBR
- CR CR
- NBR acrylonitrile butadiene rubber
- EPM ethylene propylene rubber
- a “hardenable material” is defined here as one that is initially free-flowing, but later becomes self-contained under normal conditions or under external influence, e.g. heat, UV light, etc. hardening material understood. It can be, for example, concrete, synthetic resin, adhesive and the like. For example, it can also be a fiber-containing synthetic resin that hardens to form a fiber-reinforced plastic, for example GRP.
- an essentially centrally arranged rail is flanked on both sides in the transverse direction, i.e. in the horizontal direction away from the rail, by a side profile, a support element supporting the side profile and a bracing element bracing the support element in the direction of the rail. Due to the presence of one bracing element on each side of the rail, the arrangement can be flexibly adapted to different conditions. For example, the rail width, i.e. the distance between two parallel rails of a track, can be changed by different dimensioning of the support and/or bracing elements.
- the rail is preferably held so elastically that the rail foot does not come into contact with the ground, at least when the rail is unloaded, i.e. not driven on.
- the rail is preferably elastically mounted with its rail head underside on the side profiles, and not with the rail foot on the ground.
- the arrangement according to the invention can be essentially axisymmetric, i.e. symmetric about a vertical axis running through the rail. However, this is not necessary and can be adjusted depending on the installation situation.
- the support elements and bracing elements are discontinuous in the longitudinal direction of the rail, so that a plurality of supporting elements and bracing elements are arranged one behind the other in the longitudinal direction of the rail parallel to the rail.
- “Discontinuous” means that the support elements and the bracing elements are divided into individual elements in the longitudinal direction, which are arranged one behind the other, so that the front sides of the elements are in contact with one another.
- the length of the individual elements is preferably selected such that they can be removed from the recess, ie carried, manually by one or at most two people without further technical aids. The length can be 125 cm, for example.
- the length of the support and bracing elements is also preferably chosen so that the length of a minimum rail length of a given rail system is an integral multiple of the length of an individual support and bracing element.
- a "minimum rail length” is understood here as the minimum length of a rail that is or may be used in a given rail system. In many cases, the minimum length is specified and should not be undercut, for example, in the case of repairs in which entire rail sections are replaced. For example, if the minimum rail length is 625 cm, with a length of the individual support and bracing elements of 125 cm, there are five such individual support and bracing elements.
- the lengths of the support and bracing elements can vary, but are preferably the same.
- the length of the support elements preferably corresponds to the length of the bracing elements.
- the support and bracing elements are arranged parallel to one another and to the rail and preferably aligned in the transverse direction to the rail, so that the end faces of the support and bracing elements are at the same height in the transverse direction relative to the rail.
- the support and bracing elements can also be offset from one another in the longitudinal direction.
- the lengths of the support elements and the bracing elements can be, for example, 50-180 cm, preferably 60-150 cm, 80-140 cm, 90-135 cm, 100-130 cm or 110-130 cm.
- the discontinuous arrangement of the supporting and bracing elements facilitates the maintenance of rail systems that are elastically mounted using an arrangement according to the invention. This is particularly true for rail systems where only short downtimes can be tolerated, such as metropolitan subway systems where downtime for repair and maintenance work must be avoided or at least minimized.
- the arrangement according to the invention makes this possible.
- the individual supporting and bracing elements can preferably be removed from the arrangement in a simple manner, ie without destroying a connecting means, for example an adhesive or embedding means.
- the supporting and bracing elements are therefore preferably not embedded or glued into a hardenable material, for example a bituminous material or concrete.
- the arrangement is releasably fixed via the bracing elements, for example by means of screw connections.
- the support elements can preferably be removed after loosening the bracing elements.
- the support elements have a longitudinally protruding projection on their front side and a recess on the opposite front side, with two support elements being brought into engagement on their front sides by means of the projection and the recess.
- the individual support elements can be brought into engagement with one another by means of a tongue and groove system.
- the projection and the corresponding recess are preferably formed on the side of the support element directed towards the side profile.
- the tongue and groove system stabilizes the support element and, in particular, counteracts a displacement of individual support elements in the transverse direction relative to one another.
- the bracing elements are generally wedge-shaped in cross section.
- the cross section of the bracing elements preferably tapers in the direction of gravity.
- the bracing elements can be designed axially symmetrically. In this way, a simple and efficient bracing of the support elements arranged between the bracing elements, which in turn support the side profiles holding the rail, against one another is made possible.
- the rail is elastically mounted with its rail head underside on the side profiles in such a way that the rail foot is held floating above the ground, at least in the unloaded, ie non-driven, state.
- the rail is elastically mounted on the underside of the rail head and not with the rail foot.
- the foot of the rail does not make contact with the ground below the foot of the rail, at least in the unloaded state, preferably also in the loaded state.
- the rail profiles and support elements are preferably designed in such a way that an undesired lateral deflection of the rail head is prevented.
- the lateral outer flanks of the side profiles ie flanks facing away from the rail, and the support surfaces of the support elements contacting the side profiles can taper conically towards the foot of the rail.
- the arrangement according to the invention is preferably arranged in a guide channel.
- the arrangement is preferably arranged in the guide channel in such a way that the rail head projects sufficiently out of the guide channel.
- the arrangement according to the invention is detachably fastened in the guide channel by means of the bracing elements.
- the guide channel can contain fastening means by means of which the bracing elements can be detachably fastened.
- the guide chute may be generally U-shaped with a bottom and side walls.
- the fastening means for the detachable fastening of the bracing elements can be arranged, for example, on or in the base of the guide channel.
- the guide trough can be made of a hardenable material, such as concrete.
- the fastening means for the bracing elements can, for example, be anchor rails embedded in the concrete, e.g. the bottom of the guide channel, or otherwise connected to the concrete.
- the bracing elements each lie with their outer surface, i.e. with their surface pointing away from the rail, against one of the side walls of the guide channel.
- the support elements and the bracing elements are preferably made from a suitable plastic, preferably recycled plastic.
- the plastic preferably has a suitable hardness and is flame retardant.
- it can be a suitable mixture of polyethylene (PE) and polypropylene (PP).
- the rail has a foot profile made of elastomeric material, which covers the underside of the rail foot and preferably fits around the rail foot on at least a part of the upper side of the rail foot.
- the foot profile is used to electrically insulate the rail from stray currents and, if necessary, to dampen contact with the ground.
- FIG. 1 Schematic cross-sectional view of an arrangement according to the invention.
- FIG. 2 Spatial view of an arrangement according to the invention in the installed situation.
- FIG. 3. Simplified view of an arrangement according to the invention in plan view.
- FIG. 1 shows a schematic and simplified cross-section of an arrangement 1 according to the invention.
- the rail foot 23 is encased by a foot profile 8 .
- the elastomer side profiles 4 are supported laterally by two support elements 5 made of recycled plastic, in that an inner support surface 56 of a support element is pressed against a complementary side surface 41 of the associated elastomer side profile 4 .
- Both the inner support surfaces 56 of the support elements 5 and the side surfaces 41 of the side profiles 4 that contact them run conically in cross section towards the rail foot 23 .
- the support elements 5 are braced against one another in the direction of the rail 2 by means of bracing elements 6 , which are also made of recycled plastic.
- the bracing elements 6 have a conical cross section, with the cross section of each of the bracing elements 6 tapering in the direction of gravity or in the direction parallel to the foot of the rail 23 .
- Each of the bracing elements 6 bears against an outer support surface 55 of one of the support elements 5 with an inner surface 62 pointing towards the rail 2 .
- the outer support surfaces 55 of the support element 5 each run at the same angle to a perpendicular as the inner surfaces 62 of the bracing elements 6 flanking them. fastened in a guide channel 7.
- a guide channel 7 For this purpose, at least one bore 12 is provided in each of the bracing elements, which can be closed with the aid of a cover 13 .
- the guide trough 7 is generally U-shaped with a bottom 71 and side walls 72.
- the bracing elements 6 bear against the side walls 72 of the guide trough 7 with an outer surface 61 pointing away from the rail 2.
- the anchor rails 11 are in the concrete Guide channel 7 firmly anchored by means of anchoring elements 19 .
- the bracing elements 6 can be sunk in the vertical direction against the counter elements 18 in the anchor rails 11 and releasably fastened via the screws 15 .
- the support elements 5 are braced against one another in the direction of the rail 2 , as a result of which the elastomer side profiles 4 are pressed against the rail 2 . In this way, the rail 2 is reliably held in an elastic manner.
- the rail 2 is held so elastically that the rail 2 floats with its rail foot 23 above the base 100, ie is spaced from the base 100 by a gap 101, so that the rail foot 23, at least in the unloaded state, the base 100, here the Bottom 71 of the guide channel, not touched.
- the rail head 21 protrudes above the plane in which the side profiles 4, the supporting elements 5 and the bracing elements 6 lie with their upper surfaces. In this way, it is possible for a rail vehicle to drive freely over the rail head 21 .
- the arrangement 1 can be arranged slightly tilted relative to the horizontal line 10 .
- each of the rails 2 is elastically mounted in an arrangement 1 according to the invention and the parallel rails 2 are directed towards one another with their rail heads 21, ie in the direction of the interior of the track.
- the arrangement 1 shown in FIG. 1 would thus be tilted by a corresponding angle in the clockwise direction around the longitudinal axis of the rail 2 in the installed situation.
- a second arrangement 1 (not shown here) with a second rail 2 running parallel would correspondingly be rotated counterclockwise.
- the arrangement 1 is detachably fastened in the guide channel 7 only via the bracing elements 6 . By loosening and removing the bracing elements 6, the support elements 5 and the side profiles 4 become accessible and can be removed, for example for repair work on the rail 2, and then repositioned.
- FIG. 2 shows a three-dimensional view of an arrangement 1 according to the invention.
- Part of a rail 2 is shown, which is flanked on both sides by a side profile 4, a support element 5 and a bracing element 6.
- the arrangement 1 is shown partially in an exploded view.
- the support elements 5 and bracing elements 6 are only partially shown here, namely in the area in which two such elements meet, support elements 5 with their end faces 51, 52, and bracing elements 6 with their end faces 63.
- the support elements 5 and bracing elements 6 are shown shortened here and each extend in the longitudinal direction. In this embodiment, for example, each bracing element 6 has two bores 12 which are spaced apart from the end faces 63 and in which the fastening means can be accommodated.
- each bracing element 6 has a projection 53 on their one end face 52 and on their second end face 51 a recess 54 on their side facing the side profiles 4 in the installed situation, so that two their end faces 51, 52 placed against each other supporting elements 5 can be brought into engagement with each other.
- a replacement rail 17 is also shown here, which is kept available for repair work and is arranged in a recess 91 of the surrounding material 9, in which the arrangement 1 is also arranged. It is clearly evident here that the bracing elements 6 can be easily removed by loosening the screw connection.
- the bracing elements 6 and the support elements 5 are discontinuous, i.e. in the form of individual, comparatively short and preferably manually operable pieces which can be placed next to one another in the longitudinal direction.
- FIG. 3 shows a section of a track system of an underground railway. Shown is a top view of a rail 2 of a subway track consisting of two rails 2 .
- the rail 2 is continuously elastically mounted in an arrangement 1 according to the invention.
- the support elements 5 and bracing elements 6 are discontinuous and arranged one behind the other with their end faces 51, 52, 63 abutting parallel to the rail 6.
- Five complete support elements 5 and bracing elements 6 of the same length B, eg 125 cm, are shown here, which are arranged parallel to the rail 2 and have their end faces 51, 52, 63 at the same height in relation to the rail 2. Parts of a following support element 5 and bracing element 6 are shown on the left and right side of the figure.
- the support elements 5 are connected to one another here by means of projections 53 and complementary recesses 54 in their end faces 51, 52 in the manner of a tongue and groove system.
- Five times the length B of the support elements 5 and bracing elements 6 here corresponds to a length A, for example 625 cm, which corresponds to the minimum rail length for replacement rails 17 of this track system.
- the side profiles 4, which can be continuous, can be removed from the damaged rail 2 and the replacement rail 17 can be used.
- the replacement rail 17 can be connected to the rail system by welding the butt faces of the adjacent rail sections.
- the side profiles 4 can be reattached and the flanking support elements 5 and bracing elements 6 reassembled to restore the original condition. In this way, a quick and easy repair is possible, which is particularly advantageous for metro systems in large cities where repairs have to be carried out within a short time, for example at night or during breaks in operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020117927.8A DE102020117927A1 (de) | 2020-07-07 | 2020-07-07 | Anordnung zur kontinuierlichen elastischen Lagerung von Schienen |
| PCT/EP2021/068714 WO2022008541A1 (de) | 2020-07-07 | 2021-07-06 | Anordnung zur kontinuierlichen elastischen lagerung von schienen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4179145A1 true EP4179145A1 (de) | 2023-05-17 |
| EP4179145B1 EP4179145B1 (de) | 2025-10-15 |
| EP4179145C0 EP4179145C0 (de) | 2025-10-15 |
Family
ID=77338631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21754923.7A Active EP4179145B1 (de) | 2020-07-07 | 2021-07-06 | Anordnung zur kontinuierlichen elastischen lagerung von schienen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4179145B1 (de) |
| DE (1) | DE102020117927A1 (de) |
| WO (1) | WO2022008541A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8711451U1 (de) * | 1987-08-24 | 1988-12-22 | Phoenix Ag, 2100 Hamburg | Elastisches Stützlager für Rillen- oder Blockschienen |
| WO1995020069A1 (de) | 1994-01-24 | 1995-07-27 | Hermann Ortwein | Unterbau für ein gleis für schienenfahrzeuge |
| DE9407489U1 (de) * | 1994-05-05 | 1994-08-11 | Bauunternehmung E. Heitkamp GmbH, 44652 Herne | Befestigungsvorrichtung einer Schiene für Schienenfahrzeuge |
| DE4427237A1 (de) * | 1994-08-02 | 1996-02-08 | Hermann Ortwein | Unterbau für ein Gleis für Schienenfahrzeuge |
| DE29802914U1 (de) | 1998-02-19 | 1999-06-17 | DVG Deutsche Verpackungsmittel GmbH, 90552 Röthenbach | Kammerfüllstein für Schienen, insbesondere Straßenbahnschienen |
| EP2354300A1 (de) | 2010-02-03 | 2011-08-10 | Composite Damping Material N.V. In Het Kort "Cdm" | Eingebettetes Schienensystem |
| KR102135562B1 (ko) * | 2018-07-20 | 2020-07-20 | (주) 케이티에스 | 매립형 철도궤도의 설치구조 및 이를 위한 고정블럭 |
-
2020
- 2020-07-07 DE DE102020117927.8A patent/DE102020117927A1/de active Pending
-
2021
- 2021-07-06 WO PCT/EP2021/068714 patent/WO2022008541A1/de not_active Ceased
- 2021-07-06 EP EP21754923.7A patent/EP4179145B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022008541A1 (de) | 2022-01-13 |
| EP4179145B1 (de) | 2025-10-15 |
| DE102020117927A1 (de) | 2022-01-13 |
| EP4179145C0 (de) | 2025-10-15 |
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