CN201314016Y - Low-noise type steel rail - Google Patents
Low-noise type steel rail Download PDFInfo
- Publication number
- CN201314016Y CN201314016Y CNU2008202232785U CN200820223278U CN201314016Y CN 201314016 Y CN201314016 Y CN 201314016Y CN U2008202232785 U CNU2008202232785 U CN U2008202232785U CN 200820223278 U CN200820223278 U CN 200820223278U CN 201314016 Y CN201314016 Y CN 201314016Y
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- CN
- China
- Prior art keywords
- rail
- noise
- damping sheet
- fixed head
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-noise type steel rail. A noise reduction device is arranged on a rail web of the steel rail and comprises a metal fixing plate stuck on the rail web and a noise reduction plate stuck on the metal fixing plate. The utility model can effectively control the acoustic radiation, reduces the noise while ensuring the speed increase of the trains and also prolongs the service life of the steel rail.
Description
Technical field
The utility model relates to a kind of rail, relates in particular to a kind of low noise formula rail that is applicable to that railroad train and urban light rail and subway train use when the urban district noise sensitive place travels.
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.Wheel-rail noise is the main sound source of train when the following speed of 250km/h is travelled, and rail vibration is the main cause that produces noise.This not only makes the passenger be fed up with, and especially night, influences the passenger and has a rest, and brings adverse effect also for the application life of train and end of rail, has shortened the application life of rail.
The utility model content
The purpose of this utility model is to overcome the problems referred to above that rail of the prior art exists, and a kind of low noise formula rail is provided.The utility model suppresses the acoustic radiation of rail effectively, reduction noise when not influencing train to improve speed, and the application life of having improved rail.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of low noise formula rail, it is characterized in that: the web of the rail of described rail is provided with denoising device, and described denoising device comprises metal fixed head that is bonded on the web of the rail and the noise reducing plate that is bonded on the metal fixed head.
The both sides web of the rail of described rail is provided with denoising device.
Described noise reducing plate is a damping sheet material.
Described damping sheet material is three layer construction, comprises outer damping sheet, intermediate layer fixed head and the damping sheet bonding with the metal fixed head.
Adopt advantage of the present utility model to be:
One, the denoising device that is provided with in the utility model has suppressed the acoustic radiation of rail effectively, and reduction noise when not influencing train to improve speed is a kind of noise reduction technology that suppresses the wheel-rail noise radiation from sound source.
Two, three layers of damping sheet material of the utility model employing, its structure loss factor values is 0.98 under Mid Frequency normal temperature, its average is 0.62 in the time of one 10 ℃-+50 ℃, and steel is 1-6*10
4, so noise reduction is obvious.
Three, adopt double-deck damping sheet material to wrap plate, therefore can adopt the damping sheet material of different temperatures characteristic to form the not form of structure of the wide characteristic of equality of temperature according to rail ring tender feeling condition.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, rail, 2, the metal fixed head, 3, outer damping sheet, 4, the intermediate layer fixed head, 5, damping sheet.
Specific embodiments
A kind of low noise formula rail, the web of the rail of rail 1 is provided with denoising device, and described denoising device comprises metal fixed head 2 that is bonded on the web of the rail and the noise reducing plate that is bonded on the metal fixed head 2.The both sides web of the rail of described rail 1 is provided with denoising device.Described noise reducing plate is a damping sheet material.Described damping sheet material is three layer construction, comprises outer damping sheet 3, intermediate layer fixed head 4 and the damping sheet 5 bonding with metal fixed head 2.
The utility model is a kind of rail that reduces wheel-rail noise, utilizes damping loss factor to be combined to form denoising device much larger than the damping sheet material and the metal fixed head of rail, and is pressed into the section bar that matches with the rail web of the rail and is embedded in rail web of the rail both sides and forms.Cause rail vibration and during radiated noise when train driving like this, the denoising device that is embedded in web of the rail both sides just is converted into other form to the vibration mechanical energy of rail and dissipates, thereby weakens rail noise radiation energy.
Obviously; those of ordinary skill in the art is according to technological know-how of being grasped and customary means; according to above said content, can also make the various ways that does not break away from the utility model fundamental technics thought, these pro forma conversion are all within protection domain of the present utility model.
Claims (4)
1, a kind of low noise formula rail, it is characterized in that: the web of the rail of described rail (1) is provided with denoising device, and described denoising device comprises the metal fixed head (2) that is bonded on the web of the rail and is bonded in noise reducing plate on the metal fixed head (2).
2, low noise formula rail according to claim 1, it is characterized in that: the both sides web of the rail of described rail (1) is provided with denoising device.
3, low noise formula rail according to claim 1 and 2, it is characterized in that: described noise reducing plate is a damping sheet material.
4, low noise formula rail according to claim 3, it is characterized in that: described damping sheet material is three layer construction, comprises outer damping sheet (3), intermediate layer fixed head (4) and the damping sheet (5) bonding with metal fixed head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202232785U CN201314016Y (en) | 2008-12-10 | 2008-12-10 | Low-noise type steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202232785U CN201314016Y (en) | 2008-12-10 | 2008-12-10 | Low-noise type steel rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314016Y true CN201314016Y (en) | 2009-09-23 |
Family
ID=41125808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202232785U Expired - Fee Related CN201314016Y (en) | 2008-12-10 | 2008-12-10 | Low-noise type steel rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314016Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725449A (en) * | 2009-10-22 | 2012-10-10 | 福斯洛工厂有限责任公司 | Rail web damping to reduce sound on rail lines |
| CN104452491A (en) * | 2014-12-12 | 2015-03-25 | 广西科技大学 | Sound absorber for underground railway tracks |
| 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 |
-
2008
- 2008-12-10 CN CNU2008202232785U patent/CN201314016Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725449A (en) * | 2009-10-22 | 2012-10-10 | 福斯洛工厂有限责任公司 | Rail web damping to reduce sound on rail lines |
| CN104452491A (en) * | 2014-12-12 | 2015-03-25 | 广西科技大学 | Sound absorber for underground railway tracks |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20101210 |