Backing piece for sleeper

Abstract

The invention discloses a backing piece for a sleeper. The backing piece comprises a plate body arranged on the lower surface of the sleeper in a matched mode, wherein a plurality of U-shaped grooves are uniformly distributed on the upper surface of the plate body at intervals; a plurality of inverted U-shaped grooves staggered from a plurality of U-shaped grooves are uniformly distributed on the lower surface of the plate body at intervals; openings of each U-shaped groove and each inverted U-shaped groove are wavelike; and two pairs of lateral fixing strips fixedly connected with the sleeper are symmetrically arranged on two pairs of side edges of the plate body respectively. The backing piece 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 invention relates to the technical field of railway accessories, in particular to a pad for a sleeper. Background technique [0002] Generally, in sleeper structures such as railways, high-speed railways, and urban sleeper traffic, it is generally necessary to use elastic backing plates between sleepers (such as steel rails or rails) and sleepers to absorb the vibration energy generated when vehicles pass by and weaken the vibration belt. Incoming noise pollution, and to a certain extent, protect sleepers. [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 temperature can be overcome, because the groove of the backing plate has ...

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.

Images