Modified nylon gauge apron matched with railway elastic rod type fastener

Abstract

The invention discloses a modified nylon gauge apron matched with a railway elastic rod type fastener, which comprises an apron block and a gauge apron. The apron block and the gauge apron are made of the same glass fiber reinforced nylon alloy material with high strength and designed into an integrated gauge apron, i.e. the integrated gauge apron is in an integral structure formed by connecting the apron block and the gauge apron together; 2-4 reinforcing ribs are arranged at the bottom of the integrated gauge apron; or the apron block and the gauge apron can be designed into a split combined gauge apron, i.e. the split combined gauge apron consists of a gauge block and the gauge apron, wherein the gauge apron is placed on a cement sleeper; the gauge block is attached to an iron rail; and metal elastic rods are respectively pressed on the gauge block and the gauge apron. Compared with the modified nylon gauge apron matched with the traditional railway I and II type elastic rod type fasteners, the invention replaces a metal material by glass fiber reinforced nylon with high strength and combines the apron block and the gauge apron into a whole or designs a combined structure of the gauge block and the gauge apron, so that the manufactured gauge apron can meet the running requirement of the active service line and is particularly suitable for lines with more curves and small-radius curves.

Description

technical field [0001] The invention relates to a structure of railway track fittings, in particular to a railway elastic nylon gauge baffle. The railway elastic nylon gauge baffle is mainly suitable for use in high-speed railways. Background technique [0002] In recent years, my country's railway construction has developed by leaps and bounds. During the 12th Five-Year Plan period, a dedicated passenger and freight transport network will be formed. Newly built passenger dedicated lines (such as Beijing-Shanghai, Wuhan-Guangzhou high-speed railway lines) fasteners are made of glass fiber reinforced nylon materials. Judging from the route in operation, the glass fiber reinforced nylon fastener system is operating normally and fully meets the safety requirements of high-speed passenger transportation, while the fasteners of passenger and freight railway lines still use nylon baffle seats and metal gauge blocks, which are similar to modified nylon for passenger dedicated lines....

AI Technical Summary

Problems solved by technology

[0004] The flexural strength, compressive strength and fatigue strength of general polymer materials are lower than those of metal materials, so it is not suitable for the requirements of old line fasteners

Compared with fasteners made of polymer materials, metal fasteners have disadvantages such as easy to rust, low processing cost and efficiency, and frequent replacement.

[0005] In recent years, some people have developed epoxy resin / glass fiber molded gauge blocks to replace metal gauge baffles, which can meet the requirements of use, but they must also be used in conjunction with nylon baffle seats (such as traditional Type I and II spring clips) At the same time, this composite material cannot be recycled and reused, and must be manually molded, the production efficiency is low, and the old fasteners to be replaced can only be discarded, and the natural aging will decompose to a certain extent cause environmental pollution

So the effect is not very ideal, so it needs to be further improved

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