Subway noise reduction vibration isolator

A vibration isolator and noise reduction technology, which is applied in roads, buildings, rails, etc., can solve the problems affecting the use and vibration isolation effect of rubber vibration isolators, low lateral stiffness of rubber vibration isolators, and weak lateral support. Achieve the effect of reducing lateral deformation, ensuring vibration isolation effect and improving lateral support force

Active Publication Date: 2020-12-08
JIANGSU QIHAO PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber vibration isolator has good vertical stiffness, but the horizontal stiffness of the prior art rubber vibration isolator is much smaller than the vertical stiffness, so that the rubber vibration isolator has the disadvantage of low l

Method used

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  • Subway noise reduction vibration isolator
  • Subway noise reduction vibration isolator

Examples

Experimental program
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Effect test

Embodiment 2

[0046] like figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the lower fixing part includes a lower cylinder 8, the lower cylinder 8 is fixedly arranged on the lower bottom plate 2, and the lower cylinder 8 is arranged toward one end of the upper supporting plate 1 There is an opening, and the upper plug-in column 6 is provided with a sliding groove 9 cooperating with the lower cylinder body 8, and the lower cylinder body 8 is inserted into the sliding groove 9 and is slidably connected with the sliding groove 9; the connecting guide rod 7 passes through The upper insertion post 6 and its end are arranged in the lower cylinder 8, and one end of the connecting guide rod 7 arranged in the lower cylinder 8 is threadedly connected with a pressure plate 10, and the lower cylinder 8 is filled with damping viscous fluid.

[0047] In this application, when the upper support plate 1 vibrates and moves, the pressure bearing piece 10 connecting the guid...

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PUM

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Abstract

The invention discloses a subway noise reduction vibration isolator. The subway noise reduction vibration isolator comprises an upper bearing plate (1) and a lower bottom plate (2); the upper bearingplate (1) is used for bearing a road plate, the lower bottom plate (2) is arranged on base concrete, the upper bearing plate (1) and the lower bottom plate (2) are arranged in parallel, and a vibration buffering and pressure bearing assembly and a pressure bearing guide assembly are arranged between the upper bearing plate (1) and the lower bottom plate (2); and a cavity is formed in the middle ofthe pressure bearing guide assembly, and the vibration buffering and pressure bearing assembly is arranged in the cavity in the middle of the pressure bearing guide assembly. The subway noise reduction vibration isolator has the advantages that the transverse supporting force of a rubber vibration isolator on a steel rail and a floating slab is improved, and the supporting effect and the vibration isolation effect of the whole vibration isolator are guaranteed.

Description

technical field [0001] The invention relates to a subway noise-reducing vibration isolator, which belongs to the field of subway construction equipment. Background technique [0002] The subway is an urban transportation system that covers various underground and above-ground right-of-way exclusive, high-density, high-capacity, fast, and electric traction in urban areas. The trains run on fully enclosed lines. The lines located in the central urban area are basically set in underground tunnels, and the lines outside the central urban area are generally set on viaducts or on the ground. [0003] When the subway train moves, the stress generated by the contact surface between the wheel and the rail also moves, and the stress distribution in motion is transmitted to the surrounding contact surface, forming a basic motion stress field, which induces secondary vibrations of nearby underground structures and buildings and noise. Vibration tests show that vibration has a great im...

Claims

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Application Information

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IPC IPC(8): E01B19/00
CPCE01B19/003
Inventor 刘国孜乔利军刘艳旭
Owner JIANGSU QIHAO PRECISION MACHINERY
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