CN101368356B - Rail noise controller - Google Patents
Rail noise controller Download PDFInfo
- Publication number
- CN101368356B CN101368356B CN2008101199549A CN200810119954A CN101368356B CN 101368356 B CN101368356 B CN 101368356B CN 2008101199549 A CN2008101199549 A CN 2008101199549A CN 200810119954 A CN200810119954 A CN 200810119954A CN 101368356 B CN101368356 B CN 101368356B
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- rail
- vibration absorber
- dynamic vibration
- wedge
- mass
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Abstract
The invention discloses a railway noise controller which is installed on a rail, belonging to the noise control field. The noise controller comprises a restraint layer component, a damping layer, a pin roll, a mass block, a retainer pin, a dynamic vibration absorber shell, a wedge-shaped block and an elastic layer. The damping layer is installed at the waist, the flange and the bottom of the rail, and is fixed by the restraint layer component and the dynamic vibration absorber shell. The restraint layer component and the dynamic vibration absorber shell are connected through the pin roll, and the wedge-shaped block applies clamp force on the restraint layer component and the dynamic vibration absorber shell. The dynamic vibration absorber shell with the mass block is installed at the bottom of the rail and the mass block is connected with the shell through the elastic layer. The railway noise controller effectively reduces noise of the rail in the aspect of noise source. The railway noise controller can be installed on the rail and requires no bond for adhibiting, and is low in cost and convenient to maintain. The restraint layer component, the pin roll, the mass block, the retainer pin, the dynamic vibration absorber shell and the wedge-shaped block can be used repeatedly, and the damping layer and the elastic layer are convenient to replace.
Description
Technical field
The present invention relates to a kind of rail transit noise control device, relate in particular to a kind of rail noise controller that is installed on the rail.
Background technology
At present, the control of rail transit train running noises mainly is to adopt noise reduction measures such as sound barrier, sound proof window, carries out Noise Prevention and Treatment from the route of transmission.And the construction cost height of sound barrier, cycle long, influence the worker and be engaged in personnel the maintenance of circuit, and the noise reduction of sound barrier also has been subjected to the influence of track apart from the distance of barrier, is difficult to satisfy demands of applications under the various ambient conditionss.
Rail noise controller can be from the angle control Running Train Noise of sound source as a kind of novel track noise control technique of track noise control.Number of patent application is 200610023902.2, the authorization notification number is 1807756, patent name is " dynamic vibration-absorbing multilayer damping-constraining steel rail silencer ", the Chinese invention patent application a kind of multilayer damping-constraining steel rail silencer is disclosed, its structure is to paste multilayer damping-constraining on the web of the rail of railway track and the rail wing, multilayer damping-constraining is the elastomeric property consumptive material bed of material from inside to outside, first quality layers, first damping layer, first restraint layer, second damping layer, second restraint layer, the 3rd damping layer, the 3rd restraint layer and topping, the weak point that this invention exists is: only paste the multilayer amortization on the web of the rail of railway track and the rail wing 1., and the flange of rail is not installed noise suppression device, makes the effect of vibration and noise reduction of this invention perfect inadequately; 2. intermediate layer, the aging back of damping layer damping material is changed difficulty.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of rail noise controller, on the web of the rail, the rail wing and the flange of rail, restriction damping layer is installed, and at flange of rail installation powered shock absorption device, the radiation of the high, medium and low audio-frequency noise of restriction damping layer and shock-absorbing means acting in conjunction control rail, damping material among the present invention, elastomeric material can be changed after wearing out, and other assembly of noise controller is reusable.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of rail noise controller of the present invention is by the restraint layer member, damping layer, and bearing pin, mass, retaining pin, the dynamic vibration absorber housing, wedge, elastic layer is formed.The plate face that restraint layer member top matches for the surface with the rail web of the rail and the rail wing, the musical form underarm that has pin shaft hole is arranged at the bottom, the inner surface of musical form underarm has an inclined-plane, the end of musical form underarm has crotch, the inner surface of crotch is provided with retaining pin, the dynamic vibration absorber housing is a box body, and mass is housed in the box body, and there is pin shaft hole the box body upper end; Damping layer closely amplexiforms with the rail surface under restraint layer member and the effect of dynamic vibration absorber housing, bearing pin is connected the restraint layer member by pin shaft hole with the dynamic vibration absorber housing, wedge is installed between the inclined-plane of the lateral surface of dynamic vibration absorber housing box body and restraint layer member musical form underarm inner surface, retaining pin cooperates with the soffit of wedge makes wedge locking in case anti-avulsion falls, the effect of wedge is to make restraint layer member and dynamic vibration absorber implement clamping force to damping layer and rail surface, elastic layer covers the surface of mass, and mass and elastic layer are realized the dynamic absorber effect.Mass is spheroid or block.Elastic layer is laid on the upper and lower surface of mass or only is laid on the lower surface of mass, and mass is connected with dynamic vibration absorber housing 6 by elastic layer.
Damping layer of the present invention is installed in the web of the rail, the rail wing and the flange of rail, suppresses the medium-high frequency vibration and the noise radiation of rail; Powered shock absorption device is installed in the flange of rail, in order to reduce the rail vibration of low frequency.
The invention has the beneficial effects as follows: rail noise controller of the present invention is a kind of new equipment that utilizes damping-constraining and dynamic absorber technology to carry out the control of track noise, adopt this device to reduce rail transit noise effectively from the angle of sound source, suppress the radiation of the high, medium and low audio-frequency noise of rail, reach the purpose of carrying out noise control from the source.This installation cost is low simultaneously, and is convenient for installation and maintenance, do not influence the worker and is engaged in constructing.The present invention can use separately, also can unite use to obtain bigger noise reduction with sound barrier.The present invention can be installed on the rail easily, need not use adhesive to paste on rail.Restraint layer member of the present invention, bearing pin, mass, retaining pin, dynamic vibration absorber housing and wedge can be reused, and damping layer and elastic layer are changed convenient.
Description of drawings
Fig. 1 is a three-dimensional structure diagram of the present invention.
Fig. 2 is that A of the present invention is to view.
Fig. 3 is an A-A sectional drawing of the present invention.
Fig. 4 is a restraint layer member stereogram of the present invention.
Fig. 5 is a dynamic vibration absorber housing stereogram of the present invention.
Among the figure: 1 restraint layer member, 2 damping layers, 3 bearing pins, 4 masses, 5 retaining pins, 6 dynamic vibration absorber housings, 7 wedges, 8 elastic layers.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in Figure 1, damping layer 2 covers on the both side surface of the rail web of the rail and the rail wing respectively and on the rail foot surface, damping layer 2 adopts high-damping rubber to make, cover restraint layer member 1 on the damping layer 2 on the both side surface of the rail web of the rail and the rail wing, two pin shaft holes are arranged at the bottom of restraint layer member 1, top one side of dynamic vibration absorber housing 6 has two pin shaft holes, and bearing pin 3 passes pin shaft hole restraint layer member 1 is connected with dynamic vibration absorber housing 6.The clamping force on restraint layer member 1 and dynamic vibration absorber and rail surface is implemented by wedge 7, the end of restraint layer member 1 musical form underarm has crotch, the inner surface of underarm is the inclined-plane, the gradient on inclined-plane matches with the side of wedge, wedge 7 is installed between the inclined-plane of the lateral surface of dynamic vibration absorber housing 6 box bodys and restraint layer member 1 musical form underarm inner surface, retaining pin 5 cooperates with the soffit of wedge 7 makes wedge 7 lockings to prevent owing to vibration comes off, mass 4 is housed in the box body of dynamic vibration absorber housing 6, mass is a steel ball, mass is respectively laid one deck elastic layer 8 up and down, or only at bottom laying one deck elastic layer 8, elastic layer is a high elastic rubber, and mass is connected with dynamic vibration absorber housing 6 by elastic layer.Restraint layer member, dynamic vibration absorber housing are cast steel material; Mass 4 can be that metal material also can be nonmetals, is pearl or fragment, also can adopt square or rectangle is block.
The present invention is installed in the web of the rail, the rail wing and the flange of rail place of rail between two sleepers, and the damping that imposes restriction at the web of the rail, the rail wing and flange of rail place is adopted dynamic absorber at the flange of rail; Web of the rail place is damping layer 2 from inside to outside, restraint layer member 1 top, suppress the medium-high frequency vibration and the noise radiation of rail, at the flange of rail the additional housing 6 that mass is arranged is installed simultaneously, mass 4 is connected with housing 6 by elastic layer 8 in housing 6, constitutes dynamic vibration absorber in order to reduce the rail vibration of low frequency.The syndeton of restraint layer member by the centre is connected with the dynamic vibration absorber housing and applies clamping force by wedge 7.Damping layer 2 and elastic layer 8 can be changed easily, and restraint layer member 1, bearing pin 3, mass 4, retaining pin 5, dynamic vibration absorber housing 6 and wedge 7 can be reused.
For further verifying the noise reduction of rail noise controller, carried out the noise fest test of rail noise controller, on the long rail of 2m, 3 rail noise controllers have been installed in the test, employing pulse excitation test, obtained the noise reduction of 11.46dBA, wherein train operation main frequency zone noise reduction reaches 13.91dBA, and effect is remarkable.
Claims (3)
1. rail noise controller, it is characterized in that: it comprises restraint layer member (1), damping layer (2), bearing pin (3), mass (4), retaining pin (5), dynamic vibration absorber housing (6), wedge (7) and elastic layer (8); The plate face that described restraint layer member (1) top matches for the surface with the rail web of the rail and the rail wing, the musical form underarm that has pin shaft hole is arranged at the bottom, the inner surface of musical form underarm has an inclined-plane, and the end of musical form underarm has crotch, and the inner surface of crotch is provided with retaining pin (5); Described dynamic vibration absorber housing (6) is a box body, and mass (4) is housed in the box body, and there is pin shaft hole the box body upper end; Damping layer (2) is closely amplexiformed with the rail surface by restraint layer member (1) and dynamic vibration absorber housing (6) effect, bearing pin (3) is connected restraint layer member (1) by the pin shaft hole of the pin shaft hole on the musical form underarm with the box body upper end with dynamic vibration absorber housing (6), wedge (7) is installed between the inclined-plane of the lateral surface of dynamic vibration absorber housing (6) box body and restraint layer member (1) musical form underarm inner surface, retaining pin (5) cooperates with the soffit of wedge (7) makes wedge (7) locking in case anti-avulsion falls, the effect of wedge (7) is to make restraint layer member and dynamic vibration absorber implement clamping force to damping layer (2) and rail surface, and elastic layer (8) covers the surface of mass (4).
2. rail noise controller as claimed in claim 1 is characterized in that: described mass (4) is spheroid or block.
3. rail noise controller as claimed in claim 1 is characterized in that: described elastic layer (8) is laid on the upper and lower surface of mass (4) or only is laid on the lower surface of mass (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101199549A CN101368356B (en) | 2008-09-12 | 2008-09-12 | Rail noise controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101199549A CN101368356B (en) | 2008-09-12 | 2008-09-12 | Rail noise controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101368356A CN101368356A (en) | 2009-02-18 |
| CN101368356B true CN101368356B (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101199549A Expired - Fee Related CN101368356B (en) | 2008-09-12 | 2008-09-12 | Rail noise controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101368356B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2513374A4 (en) * | 2009-12-14 | 2015-09-02 | Wilson Acoustics Ltd | Rail vibration absorber and fastening mechanism |
| CN103343496B (en) | 2013-07-10 | 2016-06-08 | 铁道第三勘察设计院集团有限公司 | A kind of track bump leveller |
| CN107254814B (en) * | 2017-03-14 | 2023-08-29 | 上海工程技术大学 | Multistage shearing type steel rail dynamic damping vibration absorber |
| CN108086065A (en) * | 2017-11-23 | 2018-05-29 | 中铁二院工程集团有限责任公司 | A kind of rail resonance sound-absorbing device |
| CN108774927A (en) * | 2018-07-30 | 2018-11-09 | 河北宝力工程装备股份有限公司 | The construction method of railway roadbed dust guard |
| CN109853302A (en) * | 2019-01-04 | 2019-06-07 | 同济大学 | A kind of rail damper based on quality enlarged structure |
| CN110593025B (en) * | 2019-10-22 | 2024-03-26 | 中铁二院工程集团有限责任公司 | Dynamic vibration absorber for wave-grinding steel rail |
| CN111022547B (en) * | 2019-12-18 | 2022-03-22 | 东莞理工学院 | Particle damping track vibration damper based on mortise and tenon connection |
| CN111535082B (en) * | 2020-05-09 | 2021-08-10 | 上海工程技术大学 | Multidirectional hydraulic vibration reduction dynamic vibration absorber structure of steel rail |
| CN112030622A (en) * | 2020-09-10 | 2020-12-04 | 青岛声达技术有限公司 | Embedded track dynamic vibration absorber |
| CN112431074B (en) * | 2020-12-14 | 2022-06-10 | 中铁二院工程集团有限责任公司 | Double-layer track vibration reduction fastener with shoulder |
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2008
- 2008-09-12 CN CN2008101199549A patent/CN101368356B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101368356A (en) | 2009-02-18 |
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Granted publication date: 20100908 Termination date: 20120912 |