Heightening fastener for passenger dedicated line and use method thereof

Abstract

The invention belongs to the technical field of railway accessories and discloses a heightening fastener for a passenger dedicated line and a use method thereof. The heightening fastener is mainly and technically characterized by comprising steel rails provided with pre-embedded iron seats arranged at two sides of the heightening fastener; the pre-embedded iron seats are connected with a heightening base, wherein a slope-shaped skid-proof base is arranged at the tail of the heightening base; an elastic bar is fixed with the heightening base through a T-shaped bolt, a widened cover plate and a nut; and the top end of the elastic bar is in contact with the a nylon gauge block arranged on the steel rail. The heightening fastener for the passenger dedicated line, provided by the invention, can be heightened when freeze injury conditions and the like occur so that the defect of a Pandrol FC fastener is overcome; by adjusting the heightening base, the aim of heightening is achieved by using a washer to heighten the height of the steel rail, thus the conductor height of a contact network cannot be influenced and the damage to a ballast bed can be avoided; meanwhile, during thawing in spring, the traditional elastic bar structure can be restored very conveniently.

Description

technical field [0001] The invention belongs to the technical field of railway accessories, and in particular relates to a height-adjusting fastener for a dedicated passenger line and a method for using the same. Background technique [0002] The ballasted track of the Shitai Passenger Dedicated Line adopts Pandrol FC fasteners. Although Pandrol fasteners have the ability to adjust the gauge, the adjustment range is -8mm to +8mm, and the adjustment step is 1mm. However, Pandrol Road fasteners have no height adjustment capability. During the maintenance process, both height adjustment and level adjustment need to be refurbished by means of tamping, but for adjustments with small deviations, the refurbishment effect cannot meet the standard requirements, especially after freezing damage in individual sections in winter, if Refurbishment by means of ramming will inevitably lead to repeated landing operations in the spring melting season, or changes in the design elevation of t...

AI Technical Summary

Problems solved by technology

[0002] The ballasted track of the Shitai Passenger Dedicated Line uses Pandrol FC fasteners. Although the Pandrol fasteners have the ability to adjust the gauge, the adjustment range is -8mm to +8mm, and the adjustment step is 1mm. However, Pandrol Road fasteners have no height adjustment capability

During the maintenance process, both height adjustment and level adjustment need to be refurbished by means of tamping. For adjustments with small deviations, the refurbishment effect cannot meet the standard requirements, especially after freezing damage in individual sections in winter. Refurbishment by means of ramming will inevitably lead to repeated landing operations in the spring melting season, or changes in the design elevation of the track, which will not only affect the catenary guide height, but also damage the stability of the ballast bed, affecting the smooth operation of the passenger dedicated line sex

Images