Railway equipment fish plate protects train operation

Fishplates are just a very common and simple railway equipment, but through the installation and application of fishplates, the impact of wheels on rail joints can be reduced, the continuity of longitudinal deformation of the rails at the joints can be increased, and the smoothness of trains passing through can be improved. Railway equipment fishplates are connecting fasteners used to connect rails to rails.
Rail plastic deformation is directly proportional to contact stress and inversely proportional to rail hardness. When the contact stress approaches the shear yield of the rail, the interface begins to plastically deform. When the contact stress reaches 4 degrees of shear yield, continuous plastic deformation accumulates on the contact surface, causing the rail head to widen or the roller to deform, causing fracturing. Plastic deformation occurs on the rail head surface, resulting in fatigue cracks. When installing the fishplate, you must be careful and operate according to the specifications. Before installing the fishplate, the power supply of the electrical appliance and circuit under test should be cut off, and the relevant components should be temporarily grounded to discharge.
When installing the fishplate, two bolts should be installed on each joint, that is, one should be installed on each rail head. When installing bolts, install flat spring washers first with the opening facing downwards. The contact part between the fishplate and the rail and the bolts should be oiled. By reducing the cracks in the mining plywood, the service life of the mining plywood can be extended. Reduce the sliding range. By adjusting the fastening force between the rail and the mine road splint, the slip amplitude can be reduced, and the slip amplitude can also be reduced by improving the joint condition and impact. Reducing the coefficient of friction; it can be achieved through various channels, such as surface treatment, improving the surface quality of the mining plywood or adding some form of intermediary on the material contact surface.