The importance of fish plate
Fish plate is a very important part of railway facilities, so do you know what a fish plate is? In fact, the fish plate is what we call the road splint. It is called the fishplate because it is shaped like a fishtail. So why is the fish plate important? In fact, it is very important for the rail track. We should know that the track is section by section before installation and construction, it needs us to install and connect, so the connection of the track is very important for the operation of the railway, and the connection of the track needs to use the fishtail, Therefore, the fish plate is very important, so there are many points to pay attention to in the joint technology of the track. Let’s take a look at it next.
For the joint technology of the track, certain safety technical inspection points are also required. Generally, fishplates are required for connection, which is mainly used for fixing and can also be replaced by hexagonal bolts. So what do we need to pay attention to?
There should be no scars on the track, and the wear on the top and one side of the track should not exceed 3mm. The track and fishplate shall not be cracked, loosened, or corroded. The lateral displacement and unevenness deviation at the track joints should not exceed 1mm. The track connected by the fish plate should be tightened, and the connecting bolts should not be less than 4 and try to use 6 as much as possible.
The track joints should be staggered, and the distance between them should not be less than 1.5m (for tower cranes) and 0.5m (for bridge cranes). There should be horns or sleepers at the butt joints, and the joint gap should not be more than 2mm. The composition and function of the flexible joint at the heel of the tip rail. It is composed of spacer iron, joint fishplate, rail support, sleeve, and stud bolt. Its function is to ensure that the switch rail can move left and right on the horizontal surface according to different switch requirements, and maintain stability when the locomotive passes.
The rail joint is the weak link on the track. When the rolling stock passes, it will be hit by the impact force. If the joint is wrongly threaded, the screw is loose, the fish plate is worn, and the joint sleeper is not tamped, the joint and its components Part of the working conditions will inevitably be destroyed, and as a result, the joint will sink and the fish plate will break.
The above are the more important points for attention in the rail joint technology, I hope everyone can pay attention to it. The use of fishplates on the track is very important, and everyone knows that fishplates are indispensable in all railway accessories.
