HK1127379B - Device for positional securing and guiding of rails for railway tracks - Google Patents

Abstract

The present invention relates to a device for positionally securing and guiding rails for track installations for trains, in particular high-speed trains, wherein the rails(9) are laid on fixed concrete foundations directly or indirectly with the interposition of intermediate plates(5,6,7), and guide plates(2) against which the rail foot(3) and, if appropriate, the intermediate plates bear laterally are anchored on or in the concrete foundations, wherein the guide plates(2) consist of high-strength, dimensionally stable material, preferably of filled plastic material, such as, for example, glass-fibre-reinforced plastic, in particular polyamide. The device according to the invention makes it possible to provide guide plates(2) which are more wear-resistant overall. This is achieved according to the invention in that the guide plate has an inlay(4), or regions provided with inlays, in the surface region on which the rail foot(3) is supported, wherein the inlay consists of slide-promoting, low-abrasion or abrasion-resistant, low-wear or wear-resistant and elastically resilient material.

Description

Positioning and guiding device for rail

Technical Field

The invention relates to a positioning and guiding device for a track of a railway track system, in particular for high-speed trains, wherein the track is laid directly or indirectly on a fixed concrete foundation by means of an interposed intermediate plate and a plurality of guide plates are to be fixed to the concrete foundation, against which guide plates the track base and, if appropriate, the intermediate plate rest laterally, wherein the guide plates are made of a high-strength and dimensionally stable material, preferably a filled plastic material, such as, for example, glass-fiber-reinforced plastic (in particular polyamide).

Background

Various devices having such guide plates are known in the art. Most of these panels today use fibre-reinforced polyamide materials, which are characterised by high stability and robustness. But it has the disadvantage that such a plate has a limited wear resistance with respect to wear on the contact points of the rail seat. It is evident that the bearing surfaces which bear laterally against the rail seat wear rapidly due to the large number of load cycles, wherein a pass of each single axis of the train corresponds to one load cycle.

Disclosure of Invention

In view of the prior art, the object of the present invention is to provide a guide plate which is more wear resistant on the whole.

In order to achieve this object, the invention proposes that the guide plate has a lining or a region with a plurality of linings in the surface layer region of the supporting rail seat, wherein the lining is made of a material that is slidable, low-wear or abrasion-resistant and elastically compressible.

The lining is arranged in the region of the friction between the guide plate and the rail seat, so that the lining or lining segments absorb the cyclic loads of the rail elastically on the basis of the slidability of the lining and sufficient elasticity. The effect is that the wear of the guide plates is reduced overall, so that a higher service life of these guide plates is achieved.

In a particularly preferred embodiment, the insert is made of polyoxymethylene.

Such a bushing can be mechanically arranged in the guide plate. It is also possible to design the insert in the guide plate in one piece.

In this case, it is particularly preferred to design the insert in such a way that it is produced in one piece with the guide plate by means of a multi-component injection molding process.

Basically, the bearing surface of the lining facing the rail should be open. It may be preferred to design the insert so that it projects slightly beyond the bearing surface of the guide plate.

Some devices, in which an intermediate layer of a first plastic plate, a second plastic plate and a steel plate arranged therebetween is arranged between the rail seat and the concrete foundation, wear of the guide plate also occurs in the region where the steel plate bears against the guide plate and is in contact therewith. In order to achieve a minimum of wear also in this region, the invention proposes that the guide plate has a lining or lining sections, at least in the region of the edge of the steel plate which abuts against the guide plate.

Such a bushing can be placed in all areas of the guide plate where friction is generated between the metal member and the guide plate.

Drawings

Embodiments of the invention are illustrated in the drawings and described in detail below. Wherein:

fig. 1 shows a rail and an associated guide plate in cross section;

FIG. 2 shows the section of FIG. 1 in an enlarged view along line II;

FIG. 3 shows a guide plate in a plan view

FIG. 4 shows the guide plate and associated track at the IV-IV line of FIG. 3;

fig. 5 shows the guide plate according to fig. 3 as seen in arrow V in fig. 3.

Detailed Description

The principles of the present invention are illustrated in detail in the accompanying drawings. The present invention relates generally to a positioning and guiding device for a rail 1. The track 1 is laid onto the concrete foundation either directly or, as shown in figure 4, by inserting intermediate plates. The corresponding guide plate 2 is fixed to or in the concrete foundation, against which the rail base 3 and, if necessary, the intermediate plate rest in the lateral direction. Such guide plates 2 are made of a high-strength, dimensionally stable material, for example glass-fibre-reinforced polyamide.

In the region of the surface of the guide plate 2 which bears laterally against the rail seat 3, the guide plate 2 has a lining 4 or a plurality of linings 4 which are designed in the form of segments. Such a liner is made of an elastically compressible material, such as POM, which is as slidable as possible, with low wear and tear.

In the embodiment, the insert 4 is integrally formed on the guide plate 2. Such integral molding may be achieved by multi-component injection molding. It is preferably understood that the insert 4 projects slightly from the bearing surface of the guide plate 2, as shown in fig. 2.

In the embodiment of fig. 3 to 5, an intermediate layer is provided between the rail base 3 and the concrete foundation, which intermediate layer is formed by a first plastic plate 5, a second plastic plate 6 and a steel plate 7 arranged therebetween.

The steel plate 7 likewise rests with its side edges on the guide plate 2 below the side edges of the rail base 3. In this region, too, a corresponding insert 4 is provided.

This is achieved by the corresponding arrangement of a lining made of a suitable material (as described in the invention), i.e. the guide plates as a whole undergo less wear when they have to withstand the cyclic loads which occur when the train travels to the respective track 1.

The invention is not limited to this embodiment but may be varied within the scope of the disclosure.

All novel, single and combined features disclosed in the description and/or the drawings are to be regarded as essential to the invention.

Claims (7)

1. A positioning and guiding device for a track of a train rail installation, wherein the track is laid directly or indirectly on a fixed concrete foundation with the interposition of an intermediate plate, and a plurality of guide plates are fixed on or in the concrete foundation, against which guide plates both the track bed and the intermediate plate rest laterally, wherein the guide plates are made of a high-strength and form-stable material,

it is characterized in that the preparation method is characterized in that,

the guide plate has a lining or a region with a plurality of said linings in a surface layer region supporting the rail seat, wherein the lining is composed of a material which is slidable, low-wear or abrasion-resistant, and soft and elastically recoverable.

2. The device of claim 1, wherein the high strength and shape stable material is a filled plastic material.

3. The apparatus of claim 1, wherein the insert is comprised of polyoxymethylene.

4. The device of claim 1, wherein the insert is integrally formed in the guide plate.

5. The device of claim 1, wherein the insert is formed integrally with the guide plate by multi-component injection molding.

6. The apparatus of claim 1, wherein the insert protrudes slightly beyond the bearing surface of the deflector.

7. The device according to any one of claims 1 to 6, wherein an intermediate layer of a first plastic plate, a second plastic plate and a steel plate arranged therebetween is arranged between the rail base and the concrete foundation,

it is characterized in that the preparation method is characterized in that,

the guide plate has one of the linings or lining sections, at least in the edge region of the steel plate abutting against the guide plate.