System for attaching a track crossing to a tie

Abstract

The present invention relates to a system for attaching a track crossing (1) for a railway vehicle to a tie (2) or an apron characterised in that said system includes: a track crossing (1), at least one portion of which is mounted on a planar supporting structure (3) defining a contact surface on which the lower surface of the base (1a) of the portion of the track crossing (1) rests; at least one attachment means (4) passing through the supporting structure (3) in order to be attached to the tie (2) or to the apron at a dedicated opening; an intermediate tie pad (5) which is shock-absorbing, electrically insulating, and arranged between the supporting structure (3) and the tie (2) or the apron; and a bushing (6) for attaching the supporting structure (3) to the tie (2) or to the apron comprising a body mounted so as to pass through a dedicated opening of the intermediate tie pad (5).

Description

technical field [0001] The present invention relates to the field of mounting and securing rail crossings to rails or aprons. Background technique [0002] At present, the installation of the rail crossings at specific track locations or directly on the concrete apron is achieved by means of a vibration-damping base plate and a second electrically insulating base plate. Said bottom plate serves in particular to optimize the fastening of the rail crossing to the rails or apron by reducing the impact of said rail crossing on said rail / apron during the passage of a rail vehicle. Thus, the reduction of vibrations during the passage of rail vehicles makes it possible to optimize the lifetime of the track wire and to limit the phenomenon of wrapping of ballast, thus reducing the need to renew or replace the track wire. It should be noted, however, that this elasticity and damping is shortly limited by the technical characteristics of the base plate. [0003] At the same time, th...

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Problems solved by technology

However, it should be noted that this elasticity and vibration damping are shortly limited by the technical characteristics of the base plate in question

[0003] At the same time, the mounting of the rail crossing on the rail or to a fixed point imposes an electrical sealing of the rails of the rail crossing relative to the rail or apron, usually by means of This is achieved by an additional insulating base between the rails, which alone cannot guarantee perfect insulation between the rail and the support or apron

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