Backing plate for sleeper

Abstract

The invention discloses a backing plate for a sleeper. The backing plate comprises a plate body arranged on the lower surface of the sleeper in a matched mode, wherein a plurality of V-shaped grooves are uniformly distributed on the upper surface of the plate body at intervals; a plurality of inverted V-shaped grooves staggered from a plurality of V-shaped grooves are uniformly distributed on the lower surface of the plate body at intervals; a plurality of bottom feet which are far away from a plurality of V-shaped grooves and a plurality of inverted V-shaped grooves and fixedly connected with the plate body are arranged on the lower surface of the plate body; and a pair of lateral fixing pieces fixedly connected with the sleeper and the plate body is symmetrically arranged on a pair of side edges of the plate body. The backing plate for the sleeper can overcome the defects of poor vibration reduction effect, non-uniform stress dispersion, short service life, low energy-saving and environment-friendly performance and the like in the prior art, and has the advantages of good vibration reduction effect, uniform stress dispersion, long service life and high energy-saving and environment-friendly performance.

Description

Technical field [0001] The present invention relates to the technical field of railway accessories, in particular to a backing plate for sleepers. Background technique [0002] Generally, in sleeper structures such as railways, high-speed railways, and urban sleeper traffic, it is generally necessary to use elastic pads between sleepers (such as steel rails or rails) and sleepers to absorb the vibration energy generated when vehicles pass and reduce the vibration zone. Noise pollution, and protect sleepers to a certain extent. [0003] However, most of the above-mentioned elastic pads are rubber plates, which are greatly affected by temperature, have poor protection effect on sleepers, have short service life, and are inconvenient to recycle. If the elastic backing plate is made of thermoplastic elastic material, although it can overcome the defect that the rubber plate is greatly affected by temperature, the groove of the backing plate has sharp corners, so that the stress distri...

AI Technical Summary

Problems solved by technology

[0003] However, most of the above-mentioned elastic backing plates are rubber plates, which are greatly affected by temperature, have poor protection effect on sleepers, have short service life, and are inconvenient to recycle.

If the thermoplastic elastic material is used to make the elastic backing plate, although the defect that the rubber plate is greatly affected by the temperature can be overcome, because the groove of the backing plate has sharp angles, the stress of the backing plate is unevenly distributed when it is stressed. thus also affecting the service life

[0004] In the process of realizing the present invention, the inventors found that there are at least defects in the prior art such as poor vibration damping effect, uneven stress distribution, short service life, poor energy saving and environmental protection, etc.

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