Swaging and limiting device for track board of ballastless track of railway

Abstract

The invention provides a swaging and limiting device for a track board of a ballastless track of a railway. The device comprises a swaging body of which both ends are respectively swaged on an upper base plate and an lower base plate, and a pull rod which is used for fixing the swaging body, wherein a penetrating hole is formed in the swaging body, a curve groove is formed in the upper end of the penetrating hole, and an opening of which the inner diameter is extended is formed in the lower end of the through hole; the device further comprises a rotating component which is used for matching with the curve groove in a rotary manner, and the pull rod penetrates through an upper hole site of the rotating component and the penetrating hole of the swaging body to be connected with the track board or a base board; and the swaging body is locked by the upper end of the pull rod through a bolt. The swaging and limiting device disclosed by the invention is mounted outside a structure without damaging the track structure, the stress is clear, synergistic reaction between the track board and the base board is ensured, and the mounting, the checking and the exchange of all components are convenient; and after upwarp defect of the ballastless track structure is repaired, the limiting device can also be dismantled to enable the ballastless track structure to restore an original state, and the security and the ride comfort of high-speed railways and the lateral stability of lines are ensured.

Description

technical field [0001] The invention belongs to the field of track structure, more precisely, relates to the connection structure between track plate and base plate in track. Background technique [0002] By the end of 2013, my country's high-speed railway mileage reached 10,000 kilometers, mainly using ballastless track structure, including Wuhan-Guangzhou, Harbin-Dalian, Zhengxi, Beijing-Tianjin, Beijing-Shanghai, Shanghai-Hangzhou, Jingshi, Shiwu, Jinqin, Hangchang CRTS Ⅰ, CRTS Ⅱ and CRTS Ⅲ slab ballastless track systems are used for high-speed railways such as CRTS, Shendan, Beijing-Shenzhen and Zhengxu, with a total mileage of about 11,000km. [0003] At present, the ballastless track is a multi-layer structure, which consists of steel rail, track plate, mortar layer and base plate from top to bottom. Among them, the CRTS Ⅱ type slab adopts measures such as the longitudinal reinforcement at the end of the track slab and the steel plate connector of the base plate (on th...

AI Technical Summary

Problems solved by technology

The existing problem is: planting bars on the track plate is a new damage to the track structure. At the same time, it is possible to cut off the longitudinal steel bars in the base plate, which will affect the force of the structure. Because the arched gaps on the track plate occur in the summer high temperature season , the scheme of planting bars is easy to cause the track slab to be strained and damaged under low temperature conditions

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