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Due to the high speed of the train, high-speed rail requires elastic rail spikes with sufficient buckling force, a large elastic area and strong track retention, but must also have the following characteristics. Reduce fastener maintenance. Once the high-speed line is opened, due to the high speed and high density of trains, track maintenance can only be carried out during short blockades. This requires that each part of the fastener has sufficient strength and durability.
The fastener has good noise and vibration reduction performance. The dynamic effect of the track increases dramatically as the train speed increases. Therefore, the subway fastener must have good noise reduction and vibration reduction performance, that is, the fastener must use a better elastic plate. In order to ensure the absolute safety of high-speed railways, fasteners must have good insulation properties, and there must be sufficient impedance between the two rails to ensure the normal operation of the track circuit.
After the high-speed development of railways, the use of large maintenance machines without operating carrier plates and Type III screwless spring rod fasteners means a reduced number of parts and easy loading and unloading in the long run, which can significantly reduce maintenance and repair costs. In order to meet the needs of high-speed ast tracks, spring rod subway fasteners must use plastic housing instead of sulfur anchors.
In the construction of the Type II fastener connector, the screws are bent and the plastic housing cannot be pierced. It is easy to loosen, and other protective measures must be taken to prevent screw corrosion. However, Type III elastic fasteners do not have these problems. Type 60210217 rubber mounting plate is recommended for the lower guide rail mounting plate. The static stiffness ranges from 55 kNΠmm to 80kN πmm. More satisfactory results can be obtained.
elastic rail spikes https://www.hbrailwayfastening.com/Lock-Spikes-Elastic-Rail-Spikes.html
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