CN102268850A - Damping shock absorber for track - Google Patents
Damping shock absorber for track Download PDFInfo
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- CN102268850A CN102268850A CN2011101563880A CN201110156388A CN102268850A CN 102268850 A CN102268850 A CN 102268850A CN 2011101563880 A CN2011101563880 A CN 2011101563880A CN 201110156388 A CN201110156388 A CN 201110156388A CN 102268850 A CN102268850 A CN 102268850A
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- damping structure
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Abstract
The invention discloses a damping shock absorber for a track, which comprises a damping structure and a clamping assembly, wherein the damping structure is paved on the track waist of the track; and the clamping assembly clamps the damping structure to approach the track waist and comprises a left clamping component, a right clamping component and a connecting component which detachably connects the left clamping component and the right clamping component. The damping structure has a relatively high damping loss factor relative to the track body of the track so as to sufficiently play a function of energy conversion and guarantee the noise reduction performance of the damping shock absorber. Meanwhile, as the clamping assembly can clamp the damping structure to be closely attached to the track waist, the damping structure and the track waist do not need to be fixedly connected together; and when the track or damping structure needs to be replaced, the locking relationship between the left clamping component and the right clamping component is released, the track or damping structure can be replaced separately, and the useful structure can be used further so as to reduce waste in track maintenance, avoid unnecessary economic loss and improve the cost performance of the damping shock absorber.
Description
Technical field
The present invention relates to antivibration area, particularly relate to a kind of track damping shock absorber.
Background technology
Noise is the pollution sources of environment, physically and mentally healthy very harmful to the people, 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.The noise of train when the following speed of 250Km/h is travelled is mainly derived from wheel-rail noise, 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 China Patent No. 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 by 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.Find that after practice in a few years this technology exists to be needed further to improve and improved place.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical rail and damping shock absorber thereof in the prior art.
As shown in Figure 1, damping shock absorber 11 of the prior art is fixed together with the rail body 12 of rail, when needing to change rail, damping shock absorber 11 can be changed together, this moment, damping shock absorber 11 still can use, but can change with rail body 12, had very big waste; But be difficult to again in being to use guarantee that rail body 12 and damping shock absorber 11 scrap simultaneously, therefore, waste is unavoidable.
Therefore, how on the basis of guaranteeing the rail anti-acoustic capability, improving the utilization rate of rail and damping shock absorber, avoid unnecessary waste, improve the applicability of damping shock absorber and the cost performance of rail, 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 track damping shock absorber, this track damping shock absorber not only has good anti-acoustic capability, and be connected removably with the rail body of rail, thereby the utilization rate and the applicability of damping shock absorber have been improved, avoid unnecessary waste, improved the cost performance of damping shock absorber.
For achieving the above object, the invention provides a kind of track damping shock absorber, the damping structure that comprises the web of the rail place that is layed in track, also comprise the clamp assembly of the described damping structure of clamping near the described web of the rail, this clamp assembly comprises left clamping part and right clamping part, and the link that connects described left clamping part and described right clamping part removably.
Preferably, described left clamping part comprises affixed mutually left side chucking section and left connection part, and described right clamping part comprises affixed mutually right side chucking section and right connection part; Described left side chucking section fits in the described damping structure in left side, and described right chucking section fits in the described damping structure on right side; Described link connects described left connection part and described right connection part.
Preferably, described damping structure is provided with the first damping material layer, first metal constraint flaggy, the second damping material layer, second metal constraint flaggy and rubber cover from inside to outside successively, directly the fit external surface of described rubber cover of described clamp assembly.
Preferably, a described left side tightens the top of section and the top that the described right top that tightens section all is lower than described damping structure.
Preferably, described link is specially screw bolt and nut.
Preferably, also comprise the sealing material layer of being located between the described damping structure and the described web of the rail.
Preferably, be provided with two described clamp assemblies between adjacent two sleepers, and two described clamp assemblies are respectively near a described sleeper.
Preferably, the laying length of described track damping shock absorber accounts for the 50%-75% that intends the noise reduction total line length.
Track damping shock absorber provided by the present invention, the damping structure that comprises the web of the rail place that is layed in track, also comprise the clamp assembly of the described damping structure of clamping near the described web of the rail, this clamp assembly comprises left clamping part and right clamping part, and the link that connects described left clamping part and described right clamping part removably.Damping structure has higher damping loss factor with respect to the rail body of track, can play the effect that energy transforms fully, guarantees the anti-acoustic capability of damping shock absorber.Simultaneously, because the closely connected web of the rail of clamp assembly energy clamping damping structure, therefore, the damping structure and the web of the rail do not need to be fixed together; When damping structure was installed, the locking link made the common clamping damping structure of left clamping part and right clamping part, and the chucking power by clamp assembly is fixed on damping structure on the web of the rail; When track or damping structure need be changed, remove the locking relation between left clamping part and the right clamping part, the chucking power of clamp assembly disappears thereupon, and damping structure separates with the web of the rail, can change track or damping structure separately, to the not influence of structure that does not need to change, change the back and re-assembly together, continue to use the waste when safeguarding to reduce track with spendable structure still, avoid unnecessary economic loss, improve the cost performance of track damping shock absorber.
A kind of preferred embodiment in, described left clamping part comprises mutually affixed left side chucking section and left connection part, described right clamping part comprises affixed mutually right side chucking section and right connection part; Described left side chucking section fits in the described damping structure in left side, and described right chucking section fits in the described damping structure on right side; Described link connects described left connection part and described right connection part.Left side chucking section acts on the damping structure in left side, right chucking section acts on the damping structure on right side, the damping structure of and arranged on left and right sides all is fixed on the web of the rail by clamp assembly, and once mounting is finished the damping structure of and arranged on left and right sides and is installed, to improve the installation effectiveness of track damping shock absorber.And this is simple in structure, is easy to realize, can reduce the difficulty of processing and the cost of production of clamp assembly.
In another preferred embodiment, the top of described left side chucking section and the top of described right chucking section all are lower than the top of described damping structure.Owing to be provided with metal constraint flaggy in the damping structure, make damping structure have certain rigidity, therefore, the length of left side chucking section and right card section can be less than the length of damping structure, make the clamped assembly clamping of damping structure part, parts are fitted in web of the rail place naturally, can guarantee that still damping structure does not come off, effectively vibration damping.Can simplify the structure of clamp assembly like this, avoid unnecessary waste, reduce the difficulty of processing and the cost of production of clamp assembly.
Description of drawings
Fig. 1 is the structural representation of a kind of typical rail and damping shock absorber thereof in the prior art;
Fig. 2 is the structural representation of track damping shock absorber provided by the present invention and a kind of specific embodiment of rail body;
Fig. 3 is the structural representation of a kind of specific embodiment of clamp assembly provided by the present invention;
Fig. 4 is the partial enlarged drawing of A part among Fig. 2;
Fig. 5 is the vertical view of a kind of specific embodiment of track damping shock absorber provided by the present invention.
The specific embodiment
Core of the present invention provides a kind of track damping shock absorber, this track damping shock absorber not only has good anti-acoustic capability, and be connected removably with the rail body of rail, thereby the utilization rate and the applicability of damping shock absorber have been improved, avoid unnecessary waste, improved the cost performance of damping shock absorber.
The innner and outer that this paper is related is that the rail body with rail is that benchmark defines, and is the lining near the rail external surface, away from the rail external surface be outside; Related left and right of this paper is that centre line L with track sectional view shown in Figure 2 is the benchmark definition.The noun of locality that should be appreciated that herein 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 described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the structural representation of track damping shock absorber provided by the present invention and a kind of specific embodiment of rail body.
Track damping shock absorber provided by the present invention, the damping structure 3 that comprises the web of the rail 2 places that are layed in track, also comprise the clamp assembly 4 of clamping damping structure 3 near the web of the rail 2, this clamp assembly 4 comprises left clamping part 41 and right clamping part 42, and the link 43 that connects left clamping part 41 and right clamping part 42 removably.Damping structure 3 has higher damping loss factor with respect to the rail body of track, can play the effect that energy transforms fully, guarantees the anti-acoustic capability of damping shock absorber.
Simultaneously, because the clamp assembly 4 energy clamping damping structures 3 closely connected webs of the rail 2, therefore, damping structure 3 does not need to be fixed together with the web of the rail 2; When damping structure 3 was installed, locking link 43 made left clamping part 41 and right clamping part 42 common clamping damping structures 3, and the chucking power by clamp assembly 4 is fixed on damping structure 3 on the web of the rail 2; When rail body or damping structure 3 needs replacings, remove the locking relation between left clamping part 41 and the right clamping part 42, the chucking power of clamp assembly 4 disappears thereupon, and damping structure 3 separates with the web of the rail 2, can change track or damping structure 3 separately, to the not influence of structure that does not need to change, change the back and re-assembly together, continue to use the waste when safeguarding to reduce track with spendable structure still, avoid unnecessary economic loss, improve the cost performance of track damping shock absorber.
Please refer to Fig. 3, Fig. 3 is the structural representation of a kind of specific embodiment of clamp assembly provided by the present invention.
In a kind of concrete embodiment, left clamping part 41 can comprise affixed left gripping section 411 and left connection part 412 mutually, and right clamping part 42 can comprise affixed right gripping section 421 and right connection part 422 mutually; Left side gripping section 411 fits in the damping structure 3 in left side, and right gripping section 421 fits in the damping structure 3 on right side; Link 43 connects left connection part 412 and right connection part 422.Left side gripping section 411 acts on the damping structure 3 in left side, right gripping section 421 acts on the damping structure 3 on right side, the damping structure 3 of and arranged on left and right sides all is fixed on the web of the rail 2 by clamp assembly 4, once mounting is finished the damping structure 3 of and arranged on left and right sides and is installed, to improve the installation effectiveness of track damping shock absorber.And this is simple in structure, is easy to realize, can reduce the difficulty of processing and the cost of production of clamp assembly 4.
Obviously, if track only a side have damping structure 3, also can be fixing, and when needs are safeguarded, remove the relation of fixedlying connected between damping structure 3 and the rail body by above-mentioned clamp assembly 4, satisfy maintenance needs.
Particularly, above-mentioned left gripping section 411 can have integral structure with left connection part 412, right gripping section 421 can have integral structure with right connection part 422, and left clamping part 41 and right clamping part 42 all have certain elasticity, to satisfy the needs of clamping and dismounting.
Please refer to Fig. 4, Fig. 4 is the partial enlarged drawing of A part among Fig. 2.
In a kind of concrete embodiment; the damping structure 3 of damping shock absorber provided by the present invention is provided with the first damping material layer 31, first metal constraint flaggy 32, the second damping material layer 33, second metal constraint flaggy 34 and rubber cover 35, the external surface of clamp assembly 4 direct applying rubber covers 35 from inside to outside successively.The damping material layer has higher damping loss 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 the condition of identical damping material, shearing damp is handled and handled more effective than stretching damping; Rubber cover 35 has anticorrosion preferably and ageing-resistant performance; and has wear-resisting characteristic; therefore; rubber cover 35 can prevent the corrosion of metal constraint flaggy; also can prevent of the bad damage of other hazardous substances, thereby prolong the application life of damping shock absorber the damping shock absorber internal construction.
Obviously, above-mentioned damping structure 3 is a kind of specific embodiment of damping shock absorber provided by the present invention, and its damping material layer and metal constraint flaggy can be one decks, can be two-layer, also can be multilayers, are basic principle with the noise reduction demand that can satisfy rail.
Particularly, the first damping material layer 31 can have different frequency characteristics with the second damping material layer 33, 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.
A kind of preferred embodiment in, the top of the top of left gripping section 411 and right gripping section 421 all can be lower than the top of damping structure 3.Owing to be provided with metal constraint flaggy in the damping structure 3, make damping structure 3 have certain rigidity, therefore, the length of left side gripping section 411 and right card section can be less than the length of damping structure 3, make clamped assembly 4 clampings of damping structure 3 parts, parts are fitted in the web of the rail 2 places naturally, can guarantee that still damping structure 3 does not come off, effectively vibration damping.Can simplify the structure of clamp assembly 4 like this, avoid unnecessary waste, reduce the difficulty of processing and the cost of production of clamp assembly 4.
Particularly, above-mentioned link 43 is specifically as follows bolt 431 and nut 432.Bolt 431 and nut 432 be sound construction not only, is convenient to assembly and disassembly, can improve the installation effectiveness of track damping shock absorber; And be easy to buying, can reduce the cost of clamp assembly 4.
Obviously, link 43 includes but not limited to bolt 431 and nut 432, and the removably link 43 that those skilled in the art know in the prior art is a lot, does not enumerate one by one at this.
Can be further improved track damping shock absorber provided by the present invention.
In a kind of concrete embodiment, track damping shock absorber provided by the present invention can also comprise the sealing material layer of being located between the damping structure 3 and the web of the rail 2, by the space between the sealing material layer elimination damping structure 3 and the web of the rail 2, make the vibration of rail body be directly passed to damping shock absorber, with the effectiveness in vibration suppression of enhancing damping shock absorber, thereby impel the anti-acoustic capability of track to be further enhanced.
Please refer to Fig. 5, Fig. 5 is the vertical view of a kind of specific embodiment of track damping shock absorber provided by the present invention.
Particularly, between adjacent two sleepers 5 two clamp assemblies 4 can be set, and two clamp assembly 4 each close sleepers 5.Like this, two sleeper 5 middle damping structures 3 can be maintained fixed under the clamping action of two clamp assemblies 4, and structure is more reliable, and can make each clamp assembly 4 do smaller and more exquisitely, and is littler to the overall structure influence of track.Obviously, also can in the middle of adjacent two sleepers 5, a plurality of clamp assemblies 4 be set.
Further, different according to the different demand of noise reduction and investment environment, the laying length of damping shock absorber 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 track damping shock absorber provided by the present invention is described in detail.Used specific case herein 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. track damping shock absorber, the damping structure that comprises the web of the rail place that is layed in track, it is characterized in that, also comprise the clamp assembly of the described damping structure of clamping near the described web of the rail, this clamp assembly comprises left clamping part and right clamping part, and the link that connects described left clamping part and described right clamping part removably.
2. track damping shock absorber according to claim 1 is characterized in that, described left clamping part comprises affixed mutually left side chucking section and left connection part, and described right clamping part comprises affixed mutually right side chucking section and right connection part; Described left side chucking section fits in the described damping structure in left side, and described right chucking section fits in the described damping structure on right side; Described link connects described left connection part and described right connection part.
3. track damping shock absorber according to claim 2; it is characterized in that; described damping structure is provided with the first damping material layer, first metal constraint flaggy, the second damping material layer, second metal constraint flaggy and rubber cover from inside to outside successively, directly the fit external surface of described rubber cover of described clamp assembly.
4. track damping shock absorber according to claim 3 is characterized in that, the top of described left side chucking section and the top of described right chucking section all are lower than the top of described damping structure.
5. track damping shock absorber according to claim 3 is characterized in that described link is specially screw bolt and nut.
6. according to each described track damping shock absorber of claim 1 to 5, it is characterized in that, also comprise the sealing material layer of being located between the described damping structure and the described web of the rail.
7. the damping shock absorber that is used for rail according to claim 6 is characterized in that, is provided with two described clamp assemblies between adjacent two sleepers, and two described clamp assemblies are respectively near a described sleeper.
8. track damping shock absorber according to claim 6 is characterized in that, the laying length of described track 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 |
|---|---|---|---|
| CN201110156388.0A CN102268850B (en) | 2011-06-10 | 2011-06-10 | Damping shock absorber for track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156388.0A CN102268850B (en) | 2011-06-10 | 2011-06-10 | Damping shock absorber for track |
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| Publication Number | Publication Date |
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| CN102268850A true CN102268850A (en) | 2011-12-07 |
| CN102268850B CN102268850B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110156388.0A Expired - Fee Related CN102268850B (en) | 2011-06-10 | 2011-06-10 | Damping shock absorber for track |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612000A (en) * | 2013-12-05 | 2015-05-13 | 深圳市市政设计研究院有限公司 | Rubber spacer light track structure with vibration reduction and noise reduction functions |
| CN108774926A (en) * | 2018-08-13 | 2018-11-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | The method that Combined steel rail tunes vibration and noise reducing device and adjusts its system frequency |
| CN109594434A (en) * | 2018-11-22 | 2019-04-09 | 同济大学 | A kind of nacre structure rail damper |
| CN109930432A (en) * | 2019-04-08 | 2019-06-25 | 西南交通大学 | A kind of multimass piece two sides clamping device for track vibration-reducing |
| CN110144770A (en) * | 2019-06-17 | 2019-08-20 | 华东交通大学 | One kind is based on RFID technique in real time from perception rail tuning quality damping unit |
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| CN109930432B (en) * | 2019-04-08 | 2020-09-01 | 西南交通大学 | Multi-mass-piece two-side clamping device for vibration reduction of track |
| CN110144770A (en) * | 2019-06-17 | 2019-08-20 | 华东交通大学 | One kind is based on RFID technique in real time from perception rail tuning quality damping unit |
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| Publication number | Publication date |
|---|---|
| CN102268850B (en) | 2015-08-05 |
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