Embedded sleeve type railway fastener

A railway fastener and sleeve-type technology, which is applied in roads, tracks, buildings, etc., can solve the problems of eccentric tension of bolts, pollution of the environment, inconvenient installation, etc., and achieve the effect of avoiding eccentric tension, avoiding pollution, and not easy to bend

Pending Publication Date: 2020-09-04
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, in order to solve the problems of inconvenient installation of railway fasteners in the prior art, polluting the environment and easily causing eccentric tension of bolts and breakage of spikes in the specific use process of railway fasteners, the present inventi

Method used

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  • Embedded sleeve type railway fastener
  • Embedded sleeve type railway fastener
  • Embedded sleeve type railway fastener

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must hav...

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Abstract

The invention discloses an embedded sleeve type railway fastener which is used for fixing a steel rail on a sleeper. The fastener comprises an elastic strip, a track gauge baffle, a baffle base, an embedded sleeve and a bolt fastener. The baffle base is arranged at a top of the sleeper, the track gauge baffle is clamped between the baffle base and a steel rail, the elastic strip is arranged on thetrack gauge baffle, the embedded sleeve is embedded in the sleeper, and the bolt fastener sequentially penetrates through the middle of the elastic strip and the track gauge baffle from top to bottomand is screwed into the embedded sleeve; and the elastic strip is omega-shaped, the elastic strip comprises an elastic strip middle limb and an elastic strip side limb which are integrally connected,a longitudinal section of the elastic strip middle limb is an arch structure, the elastic strip middle limb comprises a front end arc and a rear end arc which are integrally connected and in smooth transition, an arc radius R1 is 32-34 mm, and the arc radius R2 of the front end arc is 79-81 mm. According to the railway fastener, a problem of eccentric tension of a bolt in the prior art is effectively solved, a spike is prevented from being broken in a using process, and pollution is not caused to an environment in a mounting process.

Description

technical field [0001] The invention relates to the technical field of railway works, in particular to a pre-embedded casing type railway fastener. Background technique [0002] With the rapid development of China's rail transit, the form of fasteners for fastening rails is also constantly being updated. The function of rail fasteners is to maintain the correct position of the rails, prevent vertical and lateral displacement of the rails, provide a certain degree of rail elasticity, and reduce the impact on the rails. The force is transmitted to the foundation under the track. Fasteners, as one of the key components of railway track structure, have the functions of fastening the rail, maintaining the gauge, and preventing the longitudinal crawling of the rail, and are widely used in ballasted tracks of ordinary speed railways. [0003] At present, Type II elastic clips are widely used in railway fasteners. When Type II elastic clips are assembled in the fasteners as standar...

Claims

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Application Information

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IPC IPC(8): E01B9/38E01B9/62E01B9/68
CPCE01B9/38E01B9/62E01B9/68E01B9/681
Inventor 方杭玮朱世岳闫子权孙林林
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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