Screw damper and floating slab track system and jacking device and method thereof

Abstract

The invention relates to a screw damper and floating slab track system. The screw damper and floating slab track system comprises a floating track slab and screw dampers used for supporting the floating track slab. Each screw damper comprises a threaded ferrule and an inner elastic barrel, wherein the threaded ferrule is used for supporting the floating track slab and provided with an internal thread, the inner elastic barrel is arranged on a foundation and provided with an elastic part and a threaded rod height adjusting part, the elastic part is arranged below the threaded rod height adjusting part and used for elastically supporting the threaded rod height adjusting part, the threaded rod height adjusting part is provided with an external thread in screw fit with the internal thread of the threaded ferrule, the screw fit depth of the inner elastic barrel in the threaded ferrule is adjusted by rotating the threaded rod height adjusting part or the inner elastic barrel, and thus stepless adjustment of the jacking and supporting height of the screw damper to the floating track slab is achieved. The leveling and jacking action of the floating track slab can be rapidly and accurately completed, and thus stepless adjustment of the height can be easily, rapidly and accurately achieved; the screw damper and floating slab track system has quite remarkable economic benefits and project benefits and has broad application and popularization prospects. The invention further provides an installation method and an installation device matched with the screw damper and floating slab track system.

Description

technical field [0001] The invention belongs to the field of rail traffic vibration reduction and noise reduction, and specifically relates to a screw damper floating plate track system that can be applied to rail traffic such as high-speed rail, subway, and light rail. liter method. Background technique [0002] In recent years, the rapid development of rail transit has greatly facilitated the travel of residents. The characteristics of urban rail transit, such as high traffic density, short intervals, and inability to maintain during the day, determine that urban rail transit adopts a ballastless track structure. However, the structure of the ballastless track is rigid, the vibration response is strong, and the vibration will generate huge noise at the same time, and most of the urban rail transit lines pass through downtown and residential areas. Therefore, the vibration and noise reduction of rail transit is a key issue. question. [0003] There are many ways to reduc...

AI Technical Summary

Problems solved by technology

[0004] The height of the current elastic shock absorber is adjusted by changing the number of gaskets. Its height cannot be adjusted continuously and its precision is low. It is necessary to use jacks for construction, and its slow and cumbersome construction procedures also greatly delay the construction progress, so that most of the currently used shock absorber floating slab track systems have complex construction, rapid performance aging, poor weather resistance, and post-maintenance. Problems such as high cost and inconvenient maintenance

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