Split-type embedded and combined elastic base plate for rail transit fasteners

Abstract

The invention relates to a split-type embedded and combined elastic base plate for rail transit fasteners. The elastic base plate is characterized by comprising a basic elastic base plate body (1), through holes (3) are formed in the basic elastic base plate body (1), and elastic columns (2) are arranged in the through holes (3) in a penetrating mode, wherein the thickness of the basic elastic base plate body (1) is different from the height of each elastic column (2). The elastic base plate is simple in structure and convenient to manufacture; the rigidity of the basic elastic base plate body and the rigidity of the elastic columns can be adjusted at will according to different needs, so compatibility of the elastic base plate is improved; the elastic base plate is convenient to maintain and replace, reduces maintenance cost and improves the vibration and noise reduction performance.

Description

technical field [0001] The invention relates to an elastic backing plate, in particular to a split inlaid combined elastic backing plate used for rail transit fasteners. Background technique [0002] At present, with the continuous development of my country's railway industry, we need to lay a large number of rails. In the laying of railway tracks, buckle fittings are commonly used accessories, and elastic backing plates are required to achieve the effect of vibration and noise reduction. [0003] However, there are some problems in the technology of producing elastic backing plates in my country at present, which are mainly reflected in the following aspects: [0004] First, the elastic pads used in our country are generally one-piece overall shaped manufacturing structure, and the elasticity is provided by setting small protrusions or grooves on the surface. The elasticity is mainly provided by the surface protrusions or grooves. Elastic deformation, relatively speaking,...

AI Technical Summary

Problems solved by technology

[0004] First, the elastic pads used in our country are generally one-piece overall shaped manufacturing structure, and the elasticity is provided by setting small protrusions or grooves on the surface. The elasticity is mainly provided by the surface protrusions or grooves. Elastic deformation, relatively speaking, the deformation rate of the part that produces elastic deformation is relatively large, and stress concentration will inevitably occur at the local position, the stress level is high, and the stiffness of the elastic backing plate under the pressure is relatively low;

[0005] Second, because the existing elastic backing plate is an integrated overall shaped manufacturing structure, under pressure, it can only provide elasticity through the integrally formed protrusions or grooves on the surface. When it is deformed under pressure, due to the local stress Concentration, easy to cause damage, fast material aging, fast elastic attenuation, affected service life, and impact on vibration and noise reduction performance;

[0006] Third, because the existing elastic backing plate is a one-piece overall shaped manufacturing structure, it needs to be replaced as a whole when replacing, and the maintenance cost is relatively high

Images