2. Track bed usually refers to the ballast (ballast) cushion laid on the roadbed surface under the sleepers. The main function is to support the sleeper and evenly distribute the huge load from the upper part of the sleeper to the roadbed surface, which greatly reduces the deformation of the roadbed. Ballast is a small block of granite with a diameter of 20~70mm. There are gaps and friction between the blocks, which make the track have a certain elasticity. This elasticity can not only absorb the shock and vibration of the train, but also make the train run more smoothly. Moreover, the working conditions of trains, steel rails, sleepers and other components are greatly improved, and the service life is prolonged. Once the elasticity of the ballast is lost, the load on the reinforced concrete sleeper will increase by 50 to 80% compared to the normal state.
3. Railway turnout. Railway turnout is a line connecting device that allows locomotives to transfer from one track to another. They are usually laid in large numbers at stations and marshalling yards. With the railway switch, the passing capacity of the line can be fully utilized. Even if it is a single-track railway, by laying railway turnouts and constructing a fork line longer than the length of the train, the train can be split.
Although only a few of the more common railway parts are introduced, it can also give everyone a new understanding of railways. If you are interested in railway fasteners through the introduction of this information, you want a more comprehensive and detailed Learn about various railway fasteners, welcome to contact our company. Kingrail Parts has been engaged in the production and sales of railway fasteners and railway parts for many years. It can not only recommend and provide suitable and qualified railway equipment according to your needs, but also explain all kinds of railway fasteners in detail and provide more related information. Information allows you to know more about railways, railway equipment and railway parts.