CN102304881A - Steel rail and damping absorber thereof - Google Patents
Steel rail and damping absorber thereof Download PDFInfo
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- CN102304881A CN102304881A CN201110156390A CN201110156390A CN102304881A CN 102304881 A CN102304881 A CN 102304881A CN 201110156390 A CN201110156390 A CN 201110156390A CN 201110156390 A CN201110156390 A CN 201110156390A CN 102304881 A CN102304881 A CN 102304881A
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Abstract
The invention discloses a steel rail and a damping absorber thereof. The disclosed damping absorber comprises a damping layer and a metal constraining board layer, as well as a magnetic material layer, wherein the damping layer, the metal constraining board layer and the magnetic material layer are laid at the rail waist of the steel rail in sequence from inside to the outside; since magnetic material layer has higher specific gravity and vibration-absorbing mass effect, the damping absorber has more obvious vibration absorbing effect; meanwhile, since the damping layer and the metal constraining board layer are closely stuck on the rail waist more reliably under the action of the magnetic attraction between the magnetic material layer and the rail body, the ineffective stickiness caused by rust and flaw removal can be effectively prevented in construction and and the potential safety hazard of falling off of the damping absorber can be eliminated, and therefore the reliability of the damping absorber is improved effectively and the denoising effect of the steel rail is increased.
Description
Technical field
The present invention relates to antivibration area, particularly relate to a kind of damping shock absorber that is used for rail.In addition, the invention still further relates to a kind of rail that comprises above-mentioned damping shock absorber.
Background technology
Noise is the pollution sources of environment, and is very harmful to people's health, and each state is all strengthening the dynamics of administering noise.At present, train constantly raises speed, and the wheel-rail noise that causes along with the raising of train speed is in rising trend.One of main sound source when wheel-rail noise is train driving, and rail vibration is the main cause that produces wheel-rail noise.
Acoustician both domestic and external and scientific and technical personnel are the pollution that alleviates wheel-rail noise, proposed employing heavy rail, overlength gapless track, regular rail grinding, have adopted the control measures such as taking turns, build sound barrier, employing damping rail of eliminating the noise.These measures have been played positive role to alleviating wheel-rail noise, and especially Chinese patent number provides a kind of steel rail with low noise for the patented technology of ZL02240002.8.This patented technology employing multilayer damping-constraining structure is embedded in web of the rail both sides and has reduced wheel-rail noise effectively; It is the unique high damping vibration attenuation device of on the railway operation circuit, using through the Ministry of Railways and Railway Bureau's technical appraisement and approval of Chinese Railway; In the past few years in the china railway scope, apply, obtained good noise reduction.
After practice in a few years, find; This technology exists some to need improved aspect; Be mainly reflected in when damping structure is bonded in the web of the rail; Because there is the rust cleaning flaw in rail; The bond strength of indivedual damping structures and rail is affected, even has indivedual damping structure bondings phenomenon not up to standard.
Therefore, how improving the availability ratio that installs of damping structure, ensure the noise reduction of damping shock absorber, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of damping shock absorber that is used for rail, this damping shock absorber to install availability ratio secure, be subjected to the influence of rail rust removal less, noise reduction is remarkable.Another object of the present invention provides a kind of rail that comprises above-mentioned damping shock absorber, and the noise of this rail is obviously reduced.
For realizing the foregoing invention purpose; The present invention provides a kind of damping shock absorber that is used for rail; Comprise damping layer and metal constraint flaggy, also comprise magnetic material layer, said damping layer, said metal constraint flaggy and said magnetic material layer are layed in the web of the rail of rail from inside to outside successively.
Preferably; Said damping layer comprises first damping layer and second damping layer; Said metal constraint flaggy comprises first metal constraint flaggy and second metal constraint flaggy, and said first damping layer, said first metal constraint flaggy, said magnetic material layer, said second damping layer and said second metal constraint flaggy are laid from inside to outside successively.
Preferably, also comprise the rubber cover of being located at said second metal constraint flaggy outside.
Preferably, said first damping layer has different frequency characteristics with said second damping layer.
Preferably, said magnetic material layer is specially the magnetically damped material layer.
The present invention also provides a kind of rail, comprises rail body and the damping shock absorber that is fixedly connected with said rail body, and said damping shock absorber is as above-mentioned each described damping shock absorber.
Preferably, said damping shock absorber uses in pairs, is fixedly connected on the both sides of the said web of the rail symmetrically.
Preferably, the laying length of said damping shock absorber accounts for the 50%-75% that intends the noise reduction total line length.
Damping shock absorber provided by the present invention is installed on the web of the rail place between the adjacent sleeper of rail.This damping shock absorber comprises damping layer, metal constraint flaggy and magnetic material layer, and said damping layer, said metal constraint flaggy and said magnetic material layer are laid from inside to outside successively.Damping layer has higher fissipation factor with respect to steel, can play the effect that energy transforms fully; Metal constraint flaggy can be handled the stretching damping and be converted into the shearing damp processing, and under identical damping material condition, shearing damp is handled and handled more effective than stretching damping; Magnetic material layer has the mass effect of vibration damping owing to have bigger proportion, makes the effectiveness in vibration suppression of damping shock absorber more obvious; Magnetic attracting force between while magnetic material layer and rail body; It is more reliable closely connected at web of the rail place to make damping layer, metal retrain flaggy; When effectively preventing to construct owing to the rust cleaning flaw paste cracking; Eliminate the potential safety hazard that damping shock absorber comes off; Thereby effectively improve the installation reliability of damping shock absorber, ensure the noise reduction of rail.
A kind of preferred embodiment in, damping shock absorber provided by the present invention also comprises the rubber cover of being located at said second metal constraint flaggy outside.Rubber cover has anticorrosion preferably and ageing-resistant performance, can prevent the corrosion of metal constraint flaggy, also can prevent the bad damage of other hazardous substances to the damping shock absorber internal construction, thereby prolong the application life of damping shock absorber.
In another preferred embodiment; Said first damping layer has different frequency characteristics with said second damping layer, makes damping shock absorber under different vibration frequency operating modes, still can effectively play the effect of vibration damping; Realize effective noise reduction, and then effectively improve the applicability of damping shock absorber.
Providing on the basis of above-mentioned damping shock absorber, the present invention also provides a kind of rail that comprises above-mentioned damping vibration attenuation; Because damping vibration attenuation has above-mentioned technique effect, the rail with this damping vibration attenuation also has the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of rail provided by the present invention and first kind of specific embodiment of damping shock absorber thereof;
Fig. 2 is the structural representation of rail provided by the present invention and second kind of specific embodiment of damping shock absorber thereof;
Fig. 3 is the partial enlarged drawing of A part among Fig. 2.
The specific embodiment
Core of the present invention provides a kind of damping shock absorber that is used for rail, this damping shock absorber to install availability ratio secure, the influence of the construction that eliminated rust is less, noise reduction is remarkable.Another core of the present invention provides a kind of rail that comprises above-mentioned damping shock absorber, and the noise of this rail is obviously reduced.
The nouns of locality such as innner and outer that this paper is related are that the rail body with rail is that benchmark defines, and are the lining near the rail external surface, away from the rail external surface be outside.The noun of locality that should be appreciated that among this paper to be adopted should not limit the protection domain of this patent.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of rail provided by the present invention and first kind of specific embodiment of damping shock absorber thereof.
Damping shock absorber provided by the present invention is installed on the web of the rail place between the adjacent sleeper of rail.This damping shock absorber 2 comprises damping layer 21, metal constraint flaggy 22 and magnetic material layer 23, and damping layer 21, metal constraint flaggy 22 and magnetic material layer 23 are laid from inside to outside successively.Damping layer 21 has higher fissipation factor with respect to steel, can play the effect that energy transforms fully; Metal constraint flaggy 22 can be handled the stretching damping and be converted into the shearing damp processing, and under the identical condition of material, shearing damp is handled and handled more effective than stretching damping; Magnetic material layer 23 has the mass effect of vibration damping owing to have bigger proportion, makes the effectiveness in vibration suppression of damping shock absorber 2 more obvious; The magnetic attracting force that while magnetic material layer 23 and rail body are 1; It is more reliable closely connected at web of the rail place to make damping layer 21, metal retrain flaggy 22; When effectively preventing to construct owing to the rust cleaning flaw paste cracking; Eliminate the potential safety hazard that damping shock absorber 2 comes off; Thereby effectively improve the reliability of damping shock absorber 2, improve the noise reduction of rail.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of rail provided by the present invention and second kind of specific embodiment of damping shock absorber thereof; Fig. 3 is the partial enlarged drawing of A part among Fig. 2.
In second kind of concrete embodiment; The damping layer 21 of damping shock absorber 2 provided by the present invention can comprise first damping layer 211 and second damping layer 212; Metal constraint flaggy 22 comprises first metal constraint flaggy 221 and second metal constraint flaggy 222, the first damping layers 211, first metal constraint flaggy 221, magnetic material layer 23, second damping layer 212 and the laying successively from inside to outside of second metal constraint flaggy 222.Magnetic material layer 23 both attracted each other with rail, attracts each other with second metal in outside constraint flaggy 222 again, thereby damping shock absorber 2 better is fixed together, and difficult drop-off is guaranteed the reliability of damping shock absorber 2.Simultaneously, two damping layer structures that first damping layer 211 and second damping layer 212, first metal constraint flaggy 221 and second metal constraint flaggy 222 form can effectively strengthen the effectiveness in vibration suppression of damping shock absorber, the anti-acoustic capability of raising rail.
Obviously, above-mentioned two damping layers 21 structures are a kind of specific embodiment of damping shock absorber 2 provided by the present invention, and its damping layer 21 can be one deck (as shown in Figure 1), can be two-layer, also can be multilayer, is basic principle with the noise reduction demand that can satisfy rail.In like manner, metal constraint flaggy 22 can be two-layer or multilayer also with magnetic material layer 23, enumerates no longer one by one at this.
Further, damping shock absorber 2 provided by the present invention can also comprise the rubber cover 24 of being located at second metal constraint flaggy, 222 outsides.Rubber cover 24 has anticorrosion preferably and ageing-resistant performance; Therefore; Rubber cover 24 can prevent 22 corrosions of metal constraint flaggy, also can prevent the bad damage of other hazardous substances to damping shock absorber 2 internal constructions, thereby prolong the application life of damping shock absorber 2.
Particularly; First damping layer 211 can have different frequency characteristics with second damping layer 212, makes damping shock absorber 2 under different vibration frequency operating modes, still can effectively play the effect of vibration damping; Realize effective noise reduction, and then effectively improve the applicability of damping shock absorber 2.
A kind of preferred embodiment in; Above-mentioned magnetic material layer 23 specifically can be the magnetically damped material layer; Promptly this magnetic material layer 23 produces the magnetive attraction except having between magnetic property and rail and the metal constraint flaggy 22; Can also effectively increase the damping of damping shock absorber 2; More effectively control the vibration of rail, reach the purpose that strengthens noise reduction.
Except above-mentioned damping shock absorber 2, the present invention also provides a kind of rail that comprises above-mentioned damping shock absorber 2, and damping shock absorber 2 is fixedly connected with the rail body 1 of rail, is installed on the web of the rail place between the adjacent sleeper.The structure of other each several parts of rail please refer to prior art, and this paper repeats no more.
In a kind of concrete embodiment, damping shock absorber 2 provided by the present invention uses in the both sides of rail in pairs, and is fixedly connected on the both sides of the web of the rail symmetrically.
Further, different according to the different demands of noise reduction and investment environment, the laying length of damping shock absorber 2 provided by the present invention can account for the 50%-75% that intends the noise reduction total line length, to reach the effect that reduces investment as far as possible and satisfy the noise reduction demand.
More than rail provided by the present invention and damping shock absorber thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (8)
1. a damping shock absorber that is used for rail comprises damping layer and metal constraint flaggy, it is characterized in that, also comprises magnetic material layer, and said damping layer, said metal constraint flaggy and said magnetic material layer are layed in the web of the rail of rail from inside to outside successively.
2. the damping shock absorber that is used for rail according to claim 1; It is characterized in that; Said damping layer comprises first damping layer and second damping layer; Said metal constraint flaggy comprises first metal constraint flaggy and second metal constraint flaggy, and said first damping layer, said first metal constraint flaggy, said magnetic material layer, said second damping layer and said second metal constraint flaggy are laid from inside to outside successively.
3. the damping shock absorber that is used for rail according to claim 2 is characterized in that, also comprises the rubber cover of being located at said second metal constraint flaggy outside.
4. the damping shock absorber that is used for rail according to claim 3 is characterized in that, said first damping layer has different frequency characteristics with said second damping layer.
5. according to each described damping shock absorber that is used for rail of claim 1 to 4, it is characterized in that said magnetic material layer is specially the magnetically damped material layer.
6. a rail comprises rail body and the damping shock absorber that is fixedly connected with said rail body, it is characterized in that, said damping shock absorber is like each described damping shock absorber of claim 1 to 5.
7. rail according to claim 6 is characterized in that said damping shock absorber uses in pairs, is fixedly connected on the both sides of the said web of the rail symmetrically.
8. rail according to claim 6 is characterized in that, the laying length of said damping shock absorber accounts for the 50%-75% that intends the noise reduction total line length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156390.8A CN102304881B (en) | 2011-06-10 | 2011-06-10 | Steel rail and damping absorber thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156390.8A CN102304881B (en) | 2011-06-10 | 2011-06-10 | Steel rail and damping absorber thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102304881A true CN102304881A (en) | 2012-01-04 |
| CN102304881B CN102304881B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110156390.8A Expired - Fee Related CN102304881B (en) | 2011-06-10 | 2011-06-10 | Steel rail and damping absorber thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| EP2868803A1 (en) * | 2013-10-30 | 2015-05-06 | VR Track Oy | Arrangement arranged on rail traffic route for collecting metal dust |
| CN108708231A (en) * | 2018-05-31 | 2018-10-26 | 上海工程技术大学 | A kind of built-in metal oscillator vibration and noise reducing dynamic vibration absorber structure of rail |
| CN111608031A (en) * | 2020-05-19 | 2020-09-01 | 中铁六局集团有限公司 | Construction method for installing noise-reduction steel rail damping plate of track |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390382B1 (en) * | 1997-09-19 | 2002-05-21 | Corus Uk Limited | Rail fixings |
| CN2555275Y (en) * | 2002-07-05 | 2003-06-11 | 北京铁路局北京科学技术研究所 | Low noise steel rail |
| CN1807756A (en) * | 2006-02-16 | 2006-07-26 | 上海交通大学 | Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer |
| CN1928235A (en) * | 2006-09-21 | 2007-03-14 | 尹学军 | Damper rail |
| EP1876295A2 (en) * | 2006-07-03 | 2008-01-09 | Corus UK LTD. | Rail dampers |
| CN101413230A (en) * | 2008-10-14 | 2009-04-22 | 中国船舶重工股份有限公司洛阳分公司 | Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate |
-
2011
- 2011-06-10 CN CN201110156390.8A patent/CN102304881B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390382B1 (en) * | 1997-09-19 | 2002-05-21 | Corus Uk Limited | Rail fixings |
| CN2555275Y (en) * | 2002-07-05 | 2003-06-11 | 北京铁路局北京科学技术研究所 | Low noise steel rail |
| CN1807756A (en) * | 2006-02-16 | 2006-07-26 | 上海交通大学 | Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer |
| EP1876295A2 (en) * | 2006-07-03 | 2008-01-09 | Corus UK LTD. | Rail dampers |
| CN1928235A (en) * | 2006-09-21 | 2007-03-14 | 尹学军 | Damper rail |
| CN101413230A (en) * | 2008-10-14 | 2009-04-22 | 中国船舶重工股份有限公司洛阳分公司 | Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| CN103498392B (en) * | 2013-09-11 | 2016-01-27 | 华东交通大学 | A kind of damping steel rail |
| EP2868803A1 (en) * | 2013-10-30 | 2015-05-06 | VR Track Oy | Arrangement arranged on rail traffic route for collecting metal dust |
| CN108708231A (en) * | 2018-05-31 | 2018-10-26 | 上海工程技术大学 | A kind of built-in metal oscillator vibration and noise reducing dynamic vibration absorber structure of rail |
| CN111608031A (en) * | 2020-05-19 | 2020-09-01 | 中铁六局集团有限公司 | Construction method for installing noise-reduction steel rail damping plate of track |
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| Publication number | Publication date |
|---|---|
| CN102304881B (en) | 2015-04-01 |
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Granted publication date: 20150401 Termination date: 20210610 |