Why Does The Spring Strip Break?

In the fastener system, each component is manufactured with high precision, has high installation requirements, and has strict requirements on the use environment. Damage and failure of fastener components will lead to a decline in the overall function of the fastener and endanger driving safety. The elastic strip is the main component that realizes the function of the fastener system. It often breaks and fails during use, which causes the force on the wheel and rail to intensify, accelerates the damage of various components of the vehicle and track, and even endangers driving safety. In order to achieve safe and smooth operation of trains, it is very necessary to study the problem of clip breakage that occurs on site.
Among them, the elastic strip is the key component of the fastener system that provides elastic buckle pressure. There are mainly ω-type clips, e-type clips, D-type clips, fast clips, PR clips, etc. According to the fixing method of the spring bars, they are divided into bolted spring bars and bolt-less spring bars. Bolt-type spring bars are fixed on the iron base by bolts passing through the spring bars, while bolt-less spring bars are specially designed to insert the spring bars into the sockets on the iron base and provide pressure through their elastic deformation and are fixed to the iron base. superior. Compared with the bolt-based elastic fastener system, the boltless elastic fastener system has a relatively simple structure and is easy to install and maintain. Depending on the application of the railway fastener system and the stress characteristics of the clip itself, the clip may occasionally break. There are many reasons for the break, such as excessive deformation of the foundation under the rail, abnormal wheel load, and wheel-rail system mismatch. Problems occur, such as rail resonance, abnormal rail wear, excessive installation errors of fastener systems, etc. Breakage of the elastic bars is inevitable, and it is acceptable if the breakage rate is kept at a certain low ratio. However, after the elastic bars break, the unconstrained part may splash out, hitting vehicle equipment and even pedestrians, causing damage to the vehicle and even endangering safety.