rail anchor is widely used in turnout, its purpose is to prevent the longitudinal tension of the track and maintain the distance of the track. The rail anchor is used to connect two tracks and a pole to improve the lateral stability of the track and the ability to maintain the distance of the track. As an important part of the railway, if the rail anchor of the switch is insufficient, the track distance deviation, and more serious, the results of derailment and train rollover are unimaginable.

According to the material, the turnout gauge rod can be divided into ordinary gauge rod and insulated gauge rod. Ordinary gauge bars generally set up turning areas at corners, and pull bars are used to prevent the track from opening outward as the locomotive passes. The intermediate insulation of the insulated gauge bar guarantees the technical requirements of the absolute guide rail. Some lines have track circuits separated by insulated components in insulated gauge rods. The design is reasonable, the structure is simple and the performance is reliable. Compared with the ordinary gauge rod, the tie rod made of this material can be widely used in the track circuit parts of various track rules. The joint of the insulated gauge rod is covered with an insulating jacket, and the ends of the two rod bodies and the inner holes of the jacket are connected with each other.

To sum up, different materials have different uses for rail anchor. As an important part of the railway, if the quality of the rail anchor is poor, the ideal effect cannot be achieved in use, and the impact on the gauge is great. Therefore, the production of rail anchor must meet national standards.

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