Rubber spacer light track structure with vibration reduction and noise reduction functions

Abstract

The invention discloses a rubber spacer light track structure with vibration reduction and noise reduction functions. The rubber spacer light track structure with the vibration reduction and noise reduction functions comprises a track beam, tracks and rubber pads, wherein the track beam comprises two track beam bodies which are used for fixing the tracks and arranged oppositely in parallel, the cross section of the track beam bodies is rectangular, and the extending direction of the track beam bodies is the same with the extending direction of the two tracks; connection rods used for increasing the anti-bending inertia moment of the track beam in the sectional direction are arranged between the track beam bodies, the multiple rows of connection rods keep flush with the top face and the bottom face of the track beam bodies, the sectional shape is set to be the same double-layer connection rods, the plane where the double-layer connection rods at any tow is perpendicular to the lateral face of the track beam bodies, and arc transition sections are arranged at the positions, connected with the track beam bodies, of the connection rods; each rubber pad is mainly formed by connecting multiple rubber layers made of high-damping rubber materials. The rubber spacer light track structure with the vibration reduction and noise reduction functions increases the transverse connection stiffness and the sectional anti-bending inertia moment of the track beam, and can greatly reduce environment vibration and noise.

Description

technical field [0001] The invention relates to the field of engineering, in particular to a rubber cushion light track structure with the function of reducing vibration and noise. Background technique [0002] With the continuous expansion of the scale of cities in our country, the demand for the development of public transportation has become increasingly strong. A large number of new transportation lines have appeared on the city map. As the most effective way to relieve urban traffic pressure, urban rail transit has been recognized in recent years. rapid development. At present, the structural forms of rail transit mainly include slab track structure, trapezoidal track structure, and sleeper track structure. [0003] The integrity of the slab track is relatively good, but its existing problems are: the amount of concrete used is large, the cost of the project is high, and its own weight is relatively large, especially when it is used on a bridge, the weight of the upper...

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Problems solved by technology

[0003] The integrity of the slab track is relatively good, but its existing problems are: the amount of concrete used is large, the cost of the project is high, and its own weight is relatively large, especially when it is used on a bridge, the weight of the upper part of the bridge is increased; in order to ensure the safety of the bridge , the cross-sectional dimensions of other components on the bridge will also increase accordingly, which will increase the cost of the bridge itself

[0004] The trapezoidal track structure has the advantages of light weight, and it is convenient to arrange damping elements under the trapezoidal track. The problem is that the connecting parts at both ends of the trapezoidal track connecting rods are prone to cracking during the use of the trapezoidal track structure.

When the plastic hinge stiffness degrades seriously, it will affect the restraining stiffness of the connecting rod to the track beam laterally, endangering the driving safety of the train

[0005] The problems of the sleeper track structure are: the structure is relatively scattered, which is not conducive to the overall prefabrication of the factory, and is not conducive to the arrangement of vibration-damping components

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