Floating plate track vibration isolator

Abstract

The embodiment of the invention provides a floating slab track vibration isolator and relates to the technical field of track vibration reduction. The floating slab track vibration isolator comprises a plurality of vibration isolation units; each vibration isolation unit comprises a vibrator ring, an elastic ring and an elastic supporting assembly, wherein the elastic ring is sleeved with the vibrator ring, and the elastic supporting assembly is sleeved with the elastic ring; and the multiple vibration isolation units are sequentially connected through the elastic supporting assemblies. The floating slab track vibration isolator provided by the invention has the characteristics of being better in vibration reduction effect, longer in service life, fewer in maintenance workload and more superior in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of rail vibration reduction, in particular to a rail vibration isolator for a floating plate. Background technique [0002] At present, the vibration reduction level is divided into three levels: medium vibration reduction, advanced vibration reduction and special vibration reduction. For medium vibration-damping road sections, elastic short sleepers, GJ-Ⅲ vibration-damping fasteners, and lord fasteners are mainly used to reduce vibration intensity; for high-level vibration-damping road sections, pioneer fasteners and trapezoidal sleepers are mainly used to achieve vibration reduction; for special For the vibration-damping road section, steel spring floating plates are used to reduce vibration and noise. Various types of vibration and noise reduction measures have been adopted in urban rail transit, but there are disadvantages and deficiencies in the actual use of various vibration and noise reduction measu...

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Problems solved by technology

These five methods have certain applications in actual engineering, but each method has obvious limitations. For example, the most commonly used technology for vibration reduction is time-consuming and labor-intensive for grinding rails and wheels, shortening the service life of rails and wheels; While reducing the vibration of a certain part of the track structure, it will increase the vibration of other parts of the track structure; it is difficult to control the medium and low frequency vibration of the track structure through vibration absorption; the damping performance of the damper or damping element used for vibration resistance is affected by temperature and frequency. The impact is relatively large, so the vibration reduction effect is not stable enough; structural modification needs to modify the dynamic characteristic parameters of the track structure, which may cause train safety problems, so these methods are not necessarily practical in high-speed railways

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