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What are railway rail fasteners？

What are railway rail fasteners？

Railway rail fasteners

Railway rail fasteners

Railway rail fasteners are a kind of railway accessories. The parts used to combine rails and sleepers (or other types of under-rail foundations) on the track are also called central joint parts. Its function is to fix the steel rail on the sleeper, maintain the gauge and prevent the longitudinal and lateral movement of the rail relative to the sleeper.

The railway rail fastener system is divided into the shrapnel fastener system, gusset fastener system, and elastic strip fastener system. The gusset-type fastener is composed of a gusset plate, a threaded spike, a spring washer, an iron seat, and a buffer pad. The threaded spike is anchored in the reserved hole of the concrete sleeper bearing platform with sulfur cement mortar, and then bolts are used to fasten the buckle. Plate fastened.

There are elastic strips I, II, and III types of clip fasteners. Type I elastic strip is composed of ω elastic strip, screw spike, gauge baffle, and rubber pad. Its buckle pressure is short and the elastic range is small. The shape of the elastic strip type II is the same as that of the elastic strip type I, and the elastic range is not less than 10mm. The buckling pressure is higher than that of the elastic strip type I. Type III spring clips are shoulderless fasteners, which are suitable for severe transportation and high-density transportation conditions. Possibility of lateral displacement under seizures.

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