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 redu

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

Example Embodiment

[0044] Example one

[0045] Such as figure 1 , figure 2 with image 3 The transverse rigidity-enhanced rail fastener of the present invention shown includes a base 1, an anchor bolt 2, a crimping elastic strip 3, and an elastic support 6, and is characterized in that it also includes a guide 5, which is arranged between the base 1 and the rail 8. In between, the guide 5 and the base 1 are made of wear-resistant cast steel. The base 1 is provided with a boss 36 protruding upward along the vertical direction of the rail on both sides of the corresponding steel rail 8. The inner vertical wall of the boss 36 and the guide 5 The mating surfaces constitute a guide surface S, which is arranged parallel to the vertical direction of the track. The elastic support 6 is arranged between the base 1 and the guide 5, specifically the upper and lower surfaces are provided with elastic rubber pads with convex and concave structures. In application, an elastic backing plate 34 made of rubber is ...

Example Embodiment

[0053] Example two

[0054] Such as Figure 4 , Figure 5 The difference between the transverse stiffness-enhanced rail fastener of the present invention and the first embodiment is that the crimping elastic strip 3 in the transverse stiffness-enhancing track fastener of the present invention can also use an e-shaped structure crimping elastic strip, and withholding the elastic strip 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 distance between the rails, a gauge member 10 is provided between the rail 8 and the guide member 5, and the elastic strip 3 is pressed against the gauge member 10, and the rail 8 is pressed against the guide member 5 tightly. In addition, an elastic damping pad 9 is added between the rail 8 and the guide member 5. The elastic damping pad 9 is made of insulating elastic rubber material. On the one hand, it can attenuate the high transmission of th...

Example Embodiment

[0060] Example three

[0061] Such as Image 6 , Figure 7 The difference between the transverse rigidity-enhanced rail fastener of the present invention and the second embodiment is that the guide member 5 is provided with a rail bottom slope of 1:40. Since the rail bottom slope is provided on the guide member, the transverse rigidity-enhanced type of the present invention The longitudinal, vertical, and transverse directions of the track fasteners are all based on the base, and correspond 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 vertical direction of the base is the vertical direction of the bottom surface of the base, and the transverse direction of the base refers to 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...

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PUM

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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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