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Steel rail dynamic damping composite vibration absorber and manufacturing method thereof

A technology of dynamic damping and vibration absorber, applied in the field of rail transit, to achieve the effect of small additional mass, simple structure, and suppression of resonance

Pending Publication Date: 2020-12-18
洛阳双瑞橡塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to propose a rail dynamic damping composite shock absorber and its manufacturing method to solve the problem of reducing vibration and noise of rails in rail transit in the prior art

Method used

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  • Steel rail dynamic damping composite vibration absorber and manufacturing method thereof
  • Steel rail dynamic damping composite vibration absorber and manufacturing method thereof
  • Steel rail dynamic damping composite vibration absorber and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] as attached Figure 1-11 As shown, this embodiment proposes a rail dynamic damping composite vibration absorber, the composite vibration absorber 12 is connected to the rail 10, and the composite vibration absorber 12 is arranged between any two adjacent sleepers 11, the composite vibration absorber 12 The shock absorber 12 includes a shock absorber 3 and a fixing device, the shock absorber 3 is arranged in the fixing device, and an accommodation space 9 is formed between the shock absorber 3 and the fixing device, the rail bottom 2 of the rail 10 and At least part of the rail waist 1 is arranged in the receiving space 9; the vibration damper 3 comprises a dynamic vibration absorber and a particle damper.

[0042] Therefore, by wrapping the rail bottom 2 and at least part of the rail waist 1 of the rail 10 with the composite shock absorber 12, and combining the dynamic shock absorber and the particle damper of the shock absorber 3, both advantages of the two are combine...

Embodiment approach

[0052] Mode 1, the base plate 4 is provided with a groove 8, and the protection member 5 is plugged into the groove 8, which is conducive to further ensuring the reliability of the assembly between the base plate 4, the protection member 5, and the shock absorber 3;

[0053] Among them, as attached Figure 6 , attached Figure 9 For example, at least one groove 8 is provided on the bottom plate 4, and the protective member 5 includes a first plate body 52, a second plate body 53, a third plate body 54, a fourth plate body 55, and the second plate body body 53, the third plate body 54, and the fourth plate body 55 are connected sequentially, and the first plate body 52 is connected with the upper end surfaces of the second plate body 53, the third plate body 54, and the fourth plate body 55 at the same time; The second plate body 53, the third plate body 54, and the fourth plate body 55 are all inserted into the groove 8; the first plate body 52 is attached to the upper surfac...

Embodiment 2

[0061] In Example 1, the composite vibration absorber 12 coordinates the vibration-absorbing effect of the resonant rod 31 through the dynamics, the particle damping and vibration-reducing effect of the damping box 32, and the damping and vibration-reducing effect of the matrix 34, but these types of vibration-damping structures are often In the glass transition temperature region or within a certain range of vibration frequency, the resonance effect or damping effect is the largest. At this time, the internal friction caused by the resonance principle in the composite vibration absorber 12 is the largest, and the vibration reduction effect is the most obvious, so that The composite vibration absorber 12 has certain limitations in actual use.

[0062] Therefore, in order to meet the requirements for rail vibration reduction in some special road sections or key projects, further improve the vibration reduction effect of the composite vibration absorber 12; this embodiment propos...

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Abstract

The invention provides a steel rail dynamic damping composite vibration absorber and a manufacturing method thereof. The composite vibration absorber is connected with a steel rail, and the compositevibration absorber is arranged between any two adjacent sleepers; the composite vibration absorber comprises a vibration reduction part and a fixing device, the vibration reduction part is arranged inthe fixing device, and a containing space is formed between the vibration reduction part and the fixing device; the rail bottom and at least part of the rail web of the steel rail are arranged in thecontaining space; and the vibration reduction part comprises a dynamic vibration absorber and a particle damper; According to the steel rail dynamic damping composite vibration absorber and the manufacturing method thereof, the rail bottom and at least part of the rail web of the steel rail are wrapped, and the dynamic vibration absorber and the particle damper of the vibration reduction part arecombined into a whole to form the composite vibration absorber together, so that the advantage that the dynamic vibration absorber effectively inhibits resonance is utilized, and the advantages thatthe particle damping vibration absorber is small in additional mass and good in broadband vibration reduction effect are also utilized; and the vibration of the steel rail and the generated radiationnoise can be effectively inhibited and attenuated.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a rail dynamic damping vibration absorber and a manufacturing method thereof. The rail dynamic damping vibration absorber has the characteristics of both a dynamic vibration absorber and a particle damping vibration absorber. Background technique [0002] With the rapid development of rail transit technology, the problem of railway vibration and noise has gradually become prominent. It not only directly affects the riding comfort of passengers and the physical and mental health of railway workers, but also affects the quality of life of residents along the railway. The normal running speed of rail transit trains is generally 30-90km / h. At this time, wheel-rail rolling noise is the main source of rail traffic noise. In the frequency range of 500-2500Hz, wheel-rail vibration and noise are linearly correlated, and the purpose of reducing noise can be achieved through track vibrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
CPCE01B19/00
Inventor 王志强王金朝杨巧云张用兵曾飞
Owner 洛阳双瑞橡塑科技有限公司
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