Introduce the function of railway clips in the track

The buckle of the elastic fastener is mainly the elastic strip, which causes the pressure of the buckle to act on the track through the bending and distortion of the elastic strip, which can always ensure the reliable connection between the rails and prevent the rail from moving relative to the concrete sleeper. Move horizontally and vertically to ensure that the guard rail is normal, thereby ensuring the safety of the rail vehicle. In addition, because the contact between the train wheel and the rail is a rigid contact, it is difficult to avoid vibration, and the elastic structure of the elastic bar can also absorb the impact energy generated by the vehicle when it comes to achieve the effect of shock absorption.
The elastic strip works under the constantly changing ground stress. It bears various functions such as bending, twisting, fatigue and corrosion. When the vehicle is running, it also bears a very high instantaneous impact load. The characteristics of the article are very strict. With the increase of the axle load of railway freight railway vehicles and the increase of the speed of passenger trains, as well as the development trend of urban rail transit and subway stations, spring bars, as an important part of track structure, are also in continuous development. Necessity is also more and more concerned.
A variety of elastic strips with different characteristics need to consider the requirements of different tracks and different types of rails when using them. The frictional resistance of the fastener is small, and the elastic strip is guaranteed to have sufficient elasticity, that is, the elastic strip has a sufficiently low strength and rigidity, so as to ensure that the buckle working pressure damage caused by the shrinkage of the foundation cushion under the train is not large, and the fastener not loose.