Special-shaped steel rail and steel rail glue joint insulating joint

A technology for insulating joints and rails, which is applied to the joints of rails, rails, tracks, etc., and can solve problems such as failure of glued insulating joints

Active Publication Date: 2015-11-18
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing problems in the field of rail glued joints and seamless turnout insulation joints on seamless lines across intervals, the present invention prov

Method used

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  • Special-shaped steel rail and steel rail glue joint insulating joint
  • Special-shaped steel rail and steel rail glue joint insulating joint
  • Special-shaped steel rail and steel rail glue joint insulating joint

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Embodiment Construction

[0023] The present invention firstly provides a special-shaped rail, which includes a rail head 11 , a rail waist 12 and a rail bottom 13 , and the rail also includes an arch 14 protruding from the surface of the rail. Preferably, the arch slope is located on the upper surface of the rail bottom.

[0024] In a specific implementation manner, the vertical cross-sectional shape of the arch slope in the length direction of the rail is trapezoidal. Preferably, the vertical cross-sectional shape of the arch slope in the rail length direction is isosceles trapezoidal, and the length of the upper bottom surface of the arch slope in the rail length direction is 20-70 mm, the height of the arch slope is 10-20 mm, and the arch slope The included angle between the slope and the bottom plane is 5-60°.

[0025] In a specific embodiment, the arch slope is arranged at a position between two adjacent bolt holes on the rail in the length direction of the rail. Preferably, the distance from t...

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Abstract

The invention provides a special-shaped steel rail which comprises a rail head 11, a rail waist 12 and a rail bottom 13. The steel rail further comprises an arch slope 14 protruding out of the surface of the steel rail. The invention further provides a steel rail glue joint insulating joint. The insulating joint comprises two special-shaped steel rails connected in series. By means of the glue joint insulating joint, a large rail seam does not occur on the connection portion of the two steel rails connected in series. Besides, the probability that the steel rail glue joint insulating joint is damaged by temperature stress and train impact and accordingly fails can be substantially reduced. The steel rail glue joint insulating joint can fully resist temperature stress changes of a seamless line and impact force generated during running of a train, and development requirements of the trans-section seamless line are met.

Description

technical field [0001] The invention belongs to the technical field of railway transportation, and in particular relates to a rail glued insulating joint and a special-shaped rail technology in railway construction. Background technique [0002] The application of track circuits is a technological breakthrough for trains to enter the electric age from the steam age, and the development of seamless lines is an important measure for the overall speed-up and structural modernization of railways. Rail insulating joints are one of the key structures that combine track circuits and seamless lines. The insulating joints of insulated track circuits and seamless turnouts of cross-section seamless lines must use glued insulating joints. Glued insulating joints are generally assembled and glued by standard rails, splints, insulating layers (including insulating slots, insulating sleeves and insulating end plates) and fasteners (including bolts, nuts and flat washers) according to certa...

Claims

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Application Information

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IPC IPC(8): E01B5/02E01B11/54
Inventor 蒋荣国王甫洪许森森盘国壬
Owner CHINA RAILWAY CONSTR HEAVY IND
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