What are the functions of railway clips?

Railway clips work under repeated alternating stress. They are affected by bending, torsion, fatigue and corrosion. When vehicles pass, they also bear high instantaneous impact loads. Therefore, the performance requirements of railway clips are very strict.

It can be seen that although the railway clip is a small public engineering device, it is an important part of the track. Due to its large demand, about 7,000 pieces per kilometer, its reliability is directly related to the safety of traffic. In areas with different climate and transportation conditions, railway clips with different performance requirements are needed to meet the requirements of different tracks and different track types.

On the basic route, the fastening pressure is too large and the elastic strips are better, considering the needs of light load and high-speed routes; in the overpass track seamless splicing route, in order to reduce the interaction between the track and the highway bridge, the friction resistance of the fasteners is stipulated to be small , to ensure that the elastic strip has sufficient elasticity, that is, to ensure that the elastic strip has sufficient strength and stiffness, so as to ensure that the working pressure of the fastener is not damaged, and the fastener does not loosen due to the reduction of the foundation pad under the rail.

Railway rails are the part that supports the locomotive and its direction. The rails are fixed to the sleepers of the track bed through spring bars. The clamping part of the clip is mainly a railway clip. Through the bending and torsional deformation of the track elastic bars, the buckling is applied to the track to ensure long-term reliable connection between the tracks, maintain the integrity of the track as much as possible, prevent the track from moving vertically and horizontally relative to the sleepers, ensure the normal track gauge, and ensure that the rail vehicles safety.

In addition, since the contact between the train wheels and the rails is rigid, vibration is inevitable, and the special structure of the railway elastic bars also has the ability to absorb the impact energy generated when the vehicle passes by, achieving a shock-absorbing effect.