A fastener for high-speed railway plate and its construction technology

Abstract

The invention discloses a fastener used for a high-speed rail pressing plate and a construction process thereof, and relates to the technical field of fasteners. The invention includes a road stud body, a nut, a fastening cover and a support gasket. The road stud body includes a screw rod, and a nut is fixed at one end of the screw rod. The nut is a cylindrical structure, and a number of material penetration holes are arranged in a ring shape on the nut. Several material penetration holes are all located between the inner side of the nut and the outer side of the screw rod, and the support gasket is arranged on the outer side of the screw rod. In the present invention, the nut of the road stud body is designed as a cylindrical structure with the same outer diameter as the inner diameter of the pre-embedded hole, and it is convenient to control the verticality between the road stud body and the road tie when the pre-embedded road stud body is placed in the pre-embedded hole At the same time, a material penetration hole is set on the nut. When the road stud body is pre-embedded, the anchoring agent at the lower part of the nut can be transferred to the top of the nut through the material penetration hole, which solves the problem that the existing road stud body is difficult to locate when pre-embedding. and the problem of calibrating perpendicularity.

Description

technical field [0001] The invention belongs to the technical field of fasteners, and in particular relates to a fastener used for a high-speed rail pressing plate and a construction process thereof. Background technique [0002] For the fasteners that need to be anchored and pre-embedded for the high-speed rail rail pressure plate, the anchoring agent is used to pre-embed and fix the spike in the hole on the sleeper before the pressure plate is installed. The existing anchoring agent is placed in the hole. In the range of 3-10s, it is necessary to stably insert the road stud into the anchoring agent in a short period of time. However, the existing way of inserting the road stud is mostly manual, which cannot realize the rapid positioning and fixing of the road stud. [0003] After the spikes are fixed, put the pressure plate on the spikes and fix the pressure plate with nuts. Since the rails will vibrate strongly when the train passes by, it is necessary to ensure that the ...

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Problems solved by technology

[0005] The object of the present invention is to provide a fastener for high-speed iron plate. By designing the nut of the road stud body as a cylindrical structure with the same outer diameter as the inner diameter of the embedded hole, a pre-embedded It is convenient to control the verticality between the road stud body and the road bolster when making the hole. At the same time, a material penetration hole is set on the nut. When the road stud body is pre-embedded, the anchoring agent at the bottom of the nut can be transferred to the top of the nut through the material penetration hole. , which solves the problem that the existing road stud body is difficult to locate and calibrate the verticality when it is pre-embedded

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