screw spikes are an important part of railway track, which includes steel rails, sleepers, connecting parts, track beds, anti-climbing equipment, rail braces and switches. As a whole engineering structure, the track is laid on the roadbed, plays the guiding role of the train operation, and directly bears the huge pressure of the rolling stock and its load. Under the dynamic action of the train operation, its various components must have sufficient strength and stability to ensure that the train runs safely, smoothly and uninterrupted at the specified speed.

When the train is running, it often produces longitudinal forces acting on the rail, making the rail move longitudinally, and sometimes even driving the sleeper to move together. This longitudinal movement is called crawling. screw spikes manufacturers understand that crawling generally occurs in the normal line of the double-track railway, the direction of the heavy car of the single-track railway, the long downhill road and the braking range of the station. screw spikes manufacturers found that line crawling often causes uneven rail cracks, tie skew and other phenomena, which is very destructive to the line, and even causes small track expansion, endangering driving safety. Therefore, effective measures must be taken to prevent crawling, at this time, we usually use anti-climbing devices and anti-climbing braces to prevent the line from crawling.

The through-pin anti-climb device is composed of a through-pin with a baffle rail clamp. During installation, one side of the rail clamp tightens the rail bottom, and the other side wedges into the piercing pin, so that the entire anti-climb device firmly jams the rail bottom. In this way, when the rail is subjected to longitudinal resistance, because the baffle of the rail clamp is close to the sleeper, so the sleeper and the track stop the rail from crawling. In order to give full play to the role of the anti-climb device, the anti-climb brace is usually installed between the sleeper, and the 3 to 5 sleeper are linked together to resist rail crawling.

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