Track Fastening System Has High Tensioning Force

- Sep 11, 2017-

An orbital fastening system used to fasten the orbital forces to a sleeper on a rail device in an elastic manner, includes at least one angle guide plate and at least one clamping clamp which can be secured at the sleeper with at least one bolt, Rail Fastening System which is usually provided with an orbital interlayer made of rubber material between the bottom and the rail sleeper, To ensure the electrical insulation of track sleepers and/or steel elements of the track in relation to the orbital fastening system.

Background technology

In the known track fastening system, the clamping of railway track is realized by means of component bolts, pins, angle guides and clamping clips. The clamping clamp is arranged between the angle guide plate (the retaining board) and the Bolt (fastening anchor) in the Assembly state. In this, Rail Fastening System the clamping fixture has a two-side foot designed as a torsion element. The torsion edge or the side foot arm has a two-spring bar section which is parallel to each other, and is connected into a ring which is formed by forming a clamping section and essentially transverse to the spring rod section.

The orbital fastening system is first used to fasten the track onto a fixed base (such as a concrete sleeper or concrete slab). In this, the orbit to be fastened is directly on the fixed base by the elastic middle layer. Rail Fastening System The lateral guide part of the track accepts the angle guide, which is correspondingly formed between the precise track passages. The angle guide plate will be introduced through the rail force directly to the bearing track of the base. For this purpose, a convex shoulder (a concrete convex shoulder) is constructed at the corresponding base of each angle guide plate, Rail Fastening System and the associated angle guide plate can be supported at the convex shoulder.

The function of clamping clamp in the track fastening system is to clamp the track together with the limited force and the track support surface of the sleeper. The tension force is proportional to the sliding impedance and torsional impedance of the track fastening system. Rail Fastening System Both impedance are decisive for the position stability of the mobile track-linked group. In addition, the tensioning force resists the tilting of the track in the presence of a steering force from the vehicle, thereby guaranteeing the desired orbital geometry and safe vehicle travel.

A high tension or pretension is indispensable in a region with large lateral guides and large temperature fluctuations in the area. Because, for the purpose of load distribution, Rail Fastening System the modern track fastening system has the elastic bearing of the track, and the clamping clamp has the vertical fatigue strength in the case of high vertical vibration in addition to the high tensioning force.

The clamping clamps known in the existing technology can achieve 10-14kn tension and fatigue strength in the case of a vibration of up to 2.0mm (vibration amplitude) based on the corresponding mounting conditions. Some clamping clips for "fixed lanes" form an exception, and the clamping clamp is limited to a tension of only 10kN in the case of a vibration of up to 3 5mm.

The rotation impedance is affected by a track fastening system and is determined by the width of the angular guide plate, which will be imported from the lateral force of the track into the shoulder of the sleeper or concrete sleeper, which is measured in parallel to the bottom of the rail. Rail Fastening System The torsional impedance of the orbital fastening system is combined with the rigid frame of the movable orbital joint. For the support stability of welded rails, a high frame rigidity can be achieved (preventing longitudinal bending of the track).