A clamping device for lateral correction of ballastless track structure

Abstract

A clamping device for lateral deviation correction of ballastless track structure. The invention belongs to the technical field of disease treatment of railway ballastless track structures, and in particular relates to a clamping device for lateral deviation correction of ballastless track structures. The clamping device includes an anti-falling frame and a clamping push rod, wherein the clamping push rod is composed of four parts: a length-adjusting sleeve, a length-adjusting screw, a connecting sleeve and a leveling end plate. The sleeve-screw structure is used to realize the length adjustment of the clamping device, so as to adapt to the change of the distance between the reaction force structure (limiting structure) and the track structure and the clamping force. The spherical hinge structure is used to achieve a certain clamping angle adjustment, which can adapt to the working condition that the structural stress surfaces on both sides of the clamping device are not parallel. The use of anti-detachment frame solves the problems of cumbersome disassembly and assembly and easy falling off of the clamping ejector rod. The design of multi-component combination reduces the workload of on-site operation. The light and compact structure reduces the weight and improves the operation convenience under the premise of ensuring the function.

Description

technical field [0001] The invention belongs to the technical field of disease treatment of railway ballastless track structures, and in particular relates to a clamping device for lateral deviation correction of ballastless track structures. Background technique [0002] In recent years, the lateral deviation of my country's railway ballastless track structure has gradually emerged. The task of lateral deviation correction of ballastless track structure has become more and more serious, and the deviation correction technology has become more and more mature. The overall idea of ​​these rectification technologies is to first debond between the structural layers of the ballastless track or between the ballastless track and the surface layer of the subgrade bed (tunnel inverted arch backfill layer) to reduce the lateral rectification resistance, and then use mechanical pushing Lateral correction is carried out by means of the method, and finally the lateral stability of the tr...

AI Technical Summary

Problems solved by technology

[0003] At present, a small amount of research on the clamping device has been carried out in the process of domestic ballastless track lateral correction technology research, and some simple tooling has been applied, but none of them have been able to solve the problems of insufficient clamping force, inconvenient installation, and inability to adapt to the actual field application. Problems such as non-parallel bearing surfaces, difficulty in spacing adjustment, difficulty in disassembly, etc.

The patent "A compaction limit device and method for slab ballastless track structure (CN108004855A)" and the journal paper "Research on Deviation Correction Technology of High-speed Railway CRTSⅡ Slab Ballastless Track" (Wen Xihua, "Railway Survey", 2017 No. 1 Period)" all disclose a ballastless track structure compression limit device, this type of device is used to provide lateral and vertical clamping limit of the track plate relative to the base (or supporting layer), due to the structural size, installation base Different from the binding force requirements, it cannot be applied to the lateral clamping of the entire ballastless track structure

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