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Transverse stiffness-reinforced rail fastener

A technology of lateral stiffness and track fasteners, which is applied in the field of rail transit, can solve the problems of reducing vertical stiffness, lateral stiffness and deflection stiffness of fasteners, low vibration and noise reduction effects, and insufficient vertical stiffness, which cannot fully meet the use requirements. Achieve the effect of suppressing the phenomenon of deflection shimmy, high fatigue life, and not easy to loosen

Active Publication Date: 2013-05-08
QINGDAO CREATE ENVIRONMENT CONTROL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the available installation area of ​​fasteners is limited, and this optimization method cannot fully meet the requirements of use.
[0006] According to the structure and design principles of existing rail fasteners, in order to achieve better vibration and noise reduction functions, the existing rail fasteners have simultaneously reduced the vertical stiffness, lateral stiffness, and deflection stiffness of the fasteners. Therefore, the existing rail fasteners It is difficult to achieve the technical effect of not only ensuring the effect of vibration reduction and noise reduction, that is, maintaining a low vertical stiffness, but also maintaining a high lateral stiffness and deflection stiffness

Method used

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  • Transverse stiffness-reinforced rail fastener
  • Transverse stiffness-reinforced rail fastener
  • Transverse stiffness-reinforced rail fastener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 , figure 2 and image 3 The lateral rigidity reinforced rail fastener of the present invention as shown includes a base 1, an anchor bolt 2, a buckle elastic bar 3 and an elastic supporting member 6, and is characterized in that it also includes a guide 5, which is arranged between the base 1 and the rail 8 Between them, the guide piece 5 and the base 1 are made of wear-resistant cast steel material. On the base 1, corresponding to both sides of the rail 8, there are bosses 36 that protrude vertically upward along the rail. The inner vertical wall of the boss 36 and the guide piece 5. The mutually mating surfaces form a guide surface S, and the guide surfaces S are vertically arranged parallel to the track. The elastic support member 6 is arranged between the base 1 and the guide member 5, specifically elastic rubber pads with convex and concave structures on the upper and lower surfaces. During application, an elastic backing plate 34 made of rubber...

Embodiment 2

[0054] Such as Figure 4 , Figure 5 The difference between the lateral rigidity reinforced rail fastener of the present invention and the first embodiment is that the crimping elastic strip 3 in the lateral rigidity reinforced rail fastener of the present invention can also use e-shaped structure crimping elastic clips, and the crimping elastic clips 3 can be directly inserted and fixed on the guide 5. The base 1 is provided with a rail bottom slope of 1:40. In order to facilitate the adjustment of the rail spacing, a gauge member 10 is provided between the rail 8 and the guide member 5 , and the buckle spring 3 is pressed on the gauge member 10 , thereby pressing the rail 8 tightly on the guide member 5 . In addition, an elastic damping pad 9 is also added between the rail 8 and the guide 5. The elastic damping pad 9 is made of an insulating elastic rubber material. High-frequency stress wave can play a certain buffering and vibration-reducing effect, and on the other hand,...

Embodiment 3

[0061] Such as Figure 6 , Figure 7 The difference between the lateral rigidity-enhanced track fastener of the present invention and the second embodiment is that the rail bottom slope of 1:40 is set on the guide member 5. Since the rail bottom slope is set on the guide member, the lateral stiffness-enhanced type rail fastener of the present invention The longitudinal, vertical and transverse directions of the track fastener are based on the base, corresponding to the longitudinal, vertical and transverse directions of the base. The longitudinal direction of the base is equal to the longitudinal direction of the rail. The direction perpendicular to the longitudinal direction of the rail and parallel to the bottom surface of the base. In order to prolong the service life of the product and prevent excessive wear and tear when the guide 5 slides relative to the base 1 during the working process, a surface reinforcement element 12 is pasted on the guide surface of the base 1. I...

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Abstract

The invention relates to a transverse stiffness-reinforced rail fastener comprising a base, an anchor bolt, a bar spring and an elastomeric bearing part. The base is fixed on a railway sleeper by the anchor bolt. The transverse stiffness-reinforced rail fastener is characterized by further comprising a guiding element arranged between the base and a steel rail. Interworking guiding surfaces are arranged on the guiding element and the base respectively, the guiding surfaces are all parallel to the steel rail and perpendicularly arranged and the elastomeric bearing part is arranged between the base and the guiding element. The transverse stiffness-reinforced rail fastener can ensure vertical elasticity of the fastener, maintain perfect transverse intensity and effectively prevent the steel rail from occurring deflection and shimmy. The transverse stiffness-reinforced rail fastener can realize effects of reducing vibrate and noise as the traditional rail fastener, can also retard or prevent abrasion of the steel rail so that service life of the steel rail is prolonged greatly. The transverse stiffness-reinforced rail fastener needs small assembling space, is an economic beneficial utility, and is compact in structure, cost effectively and wide in market application prospect.

Description

technical field [0001] The invention belongs to the field of rail transportation, and relates to a rail fastener, in particular to a novel transverse rigidity reinforced rail fastener that can effectively reduce the abrasion of rails during the working process. Background technique [0002] In recent years, rail transit has developed rapidly due to its many advantages such as large capacity, fast safety, etc., which has brought great convenience to people's production and life. Fasteners are an important part of the track structure. It combines rails and sleepers into a rail row structure, which bears train loads and resists longitudinal and lateral forces. At the same time, it is also a provider of track elasticity and geometric adjustment capabilities, and plays a certain role in reducing vibration and noise. Especially under the development trend of continuous high-speed rail transportation, the requirements for vibration and noise reduction of fasteners are increasing da...

Claims

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Application Information

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IPC IPC(8): E01B9/48E01B9/68E01B19/00
Inventor 尹学军雷晓燕刘加华孔祥斐曲洪啸
Owner QINGDAO CREATE ENVIRONMENT CONTROL TECH
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