CN111118976A - Near-rail noise reduction device for rail transit - Google Patents
Near-rail noise reduction device for rail transit Download PDFInfo
- Publication number
- CN111118976A CN111118976A CN202010089426.4A CN202010089426A CN111118976A CN 111118976 A CN111118976 A CN 111118976A CN 202010089426 A CN202010089426 A CN 202010089426A CN 111118976 A CN111118976 A CN 111118976A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- rail
- reduction body
- steel rail
- elastic clamp
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 229920001971 elastomer Polymers 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000001154 acute effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
A rail transit near-rail noise reduction device is used for urban rail transit noise reduction and comprises an elastic clamp and a noise reduction body; the noise reduction body is arranged between the sleepers and located in a groove in the outer side of the steel rail, one end of the elastic clamp hooks the inner side of the steel rail, and the other end of the elastic clamp clamps a groove of the noise reduction body. The invention has simple structure, stable performance, wider applicable frequency domain range, long service life, good vibration and noise reduction effect and very superior cost performance; the method is simple and easy to implement, convenient to operate, capable of being widely applied to controlling vibration and noise of the steel rail in the rail transit operation process, and very wide in market application prospect.
Description
Technical Field
The invention relates to the technical field of urban rail transit, in particular to a near-rail noise reduction device for rail transit.
Background
Urban rail transit plays a key role in improving resident trip quality, improving urban ecological environment, promoting urban economic development and optimizing urban spatial layout. Meanwhile, as each urban rail transit network is continuously encrypted, the speed of trains is continuously improved, the service life of the line is continuously prolonged, the negative problems of vibration and noise caused by the line are more serious, and the line attracts more and more attention, and the vibration and noise become one of seven environmental hazards in the world.
In the process of rail transportation, steel rail vibration is the main cause of noise generation, and researches show that wheel rail noise accounts for a high proportion in railway noise formed in train operation, and medium and high frequency noise radiated by steel rail vibration contributes to the final noise amount particularly obviously, so that vibration and noise control of the running steel rail have important significance for vibration reduction and noise reduction of urban rail transit.
The vibration of the track is further intensified by the heavy self-weight, heavy load and high speed of the transport vehicle. A large number of track vibration reduction measures of different levels are developed in the industry, but the existing track vibration reduction measures of different levels in the market at present, such as a vibration reduction fastener, a trapezoidal sleeper, a track bed vibration reduction pad or a steel spring floating plate and the like, can reduce environmental vibration, but also can cause the noise of a wheel track to be obviously increased, and the increased noise is transmitted to the interior of a vehicle body to influence the riding comfort of a driver and passengers.
Disclosure of Invention
The near-rail noise reduction device for the rail transit is simple in structure, stable in performance, wide in applicable frequency domain range, long in service life and good in vibration and noise reduction effects. The near-rail noise reduction device for the rail transit is simple and easy to implement, convenient to operate and capable of being widely applied to controlling vibration and noise of the steel rail in the rail transit operation process.
A near-rail noise reduction device for rail transit is composed of an elastic clamp and a noise reduction body. The noise reduction body is arranged in a groove on the outer side of a steel rail between sleepers, one side of the elastic clamp is used for hooking the inner side of the steel rail, and the outer side of the steel rail is clamped by a groove of the noise reduction body.
The noise reduction body consists of a rubber frame and sound absorption cotton, and the sound absorption cotton is filled in the rubber frame; the end face of the noise reduction body is a strip-shaped body in a parallelogram shape, one side of the noise reduction body is superposed with the outer side contour line of the steel rail, and two grooves are arranged on the noise reduction body and used for being matched with the elastic clamp. The noise reduction body is arranged on the outer side of the steel rail between the two sleepers and has the sound absorption effect.
The noise reduction body is composed of a rubber frame, transverse wedges and vertical wedges, the rubber frame is filled with the transverse wedges and the vertical wedges, the transverse wedges, the vertical wedges, the transverse wedges and the vertical wedges are arranged at intervals, openings of the rubber frame face the steel rail side, and the rubber frame and sound absorption cotton are tightly attached to the outer side of the steel rail during installation.
The end face of the noise reduction body is a strip-shaped body in a parallelogram shape, one side of the noise reduction body is superposed with the outer side contour line of the steel rail, and two grooves are arranged on the noise reduction body and used for being matched with the elastic clamp. The noise reduction body is arranged on the outer side of the steel rail between the two sleepers and has the sound absorption effect.
The elastic clamp is an elastic clamp which is integrally made of 65Mn material and has an acute angle, one end of the elastic clamp hooks the inner side of the steel rail, and the other end of the elastic clamp clamps a groove on the noise reduction body, so that the noise reduction body can be tightly hooked on the steel rail.
The invention has the advantages of simple structure, stable performance, wider applicable frequency domain range, long service life and good vibration and noise reduction effect.
Drawings
FIG. 1 is a front elevation view of the near-rail noise reduction device of the rail transit of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a side view of a noise reducer of the present invention;
FIG. 4 is a top view of a noise reducing body of the present invention;
FIG. 5 is a cross-sectional view of a noise reducing body B-B of the present invention;
FIG. 6 is a cross-sectional view of a noise reducing body of the present invention;
FIG. 7 is a side view of the present invention spring card;
FIG. 8 is a cross-sectional view of a noise reducing body according to a second embodiment of the present invention;
FIG. 9 is an elevation view of a noise reducing body according to a second embodiment of the present invention;
in the figure: the sound absorption type steel rail comprises a steel rail 1, an elastic clamp 2, a noise reduction body 3, a rubber frame 31, sound absorption cotton 32, a groove 33, a transverse wedge 34 and a vertical wedge 35.
Detailed Description
Example 1: fig. 1 and 2 show a near-rail noise reduction device for rail transit, which is composed of an elastic card 2 and a noise reduction body 3. The noise reduction body 3 is arranged in a groove at the outer side of a steel rail 1 between sleepers, one side of the elastic clamp 2 hooks the inner side of the steel rail 1, and the other side of the elastic clamp 2 clamps a groove 33 of the noise reduction body.
As shown in fig. 6, the noise reduction body 3 is composed of a rubber frame 31 made of ethylene propylene diene monomer and sound absorption rock wool 32, the sound absorption rock wool 32 is filled in the rubber frame 31, an opening of the rubber frame faces the steel rail side, and the rubber frame and the sound absorption rock wool are tightly attached to the outer side of the steel rail during installation.
The end face of the noise reduction body is a strip-shaped body in a parallelogram shape, one side of the noise reduction body is superposed with the outer side contour line of the steel rail, and the noise reduction body is provided with two grooves for matching with an elastic clamp. The noise reduction body is arranged on the outer side of the steel rail between the two sleepers and has the sound absorption effect.
The elastic clamp is made of 65Mn materials, the whole elastic clamp with an acute angle is used, one end of the elastic clamp hooks the inner side of the steel rail, the other end of the elastic clamp clamps a groove on the noise reduction body, and the noise reduction body can be tightly hooked on the steel rail.
Example 2
Fig. 1 and 2 show a near-rail noise reduction device for rail transit, which is composed of an elastic clamp and a noise reduction body. The noise reduction body is arranged in a groove on the outer side of a steel rail between sleepers, one side of the elastic clamp is used for hooking the inner side of the steel rail, and the outer side of the elastic clamp is clamped by a groove of the noise reduction body.
As shown in fig. 8, the noise reducer is a rubber frame made of ethylene propylene diene monomer, and the side close to the mouth of the rubber frame is tightly attached to the outer side of the steel rail during installation. The rubber frame is filled with transverse wedges and vertical wedges. The end face of the noise reduction body is a strip-shaped body in a parallelogram shape, one side of the noise reduction body is superposed with the outer side contour line of the steel rail, and two grooves are arranged on the noise reduction body and used for being matched with the elastic clamp. The noise reduction body is arranged on the outer side of the steel rail between the two sleepers and has the sound absorption effect.
The transverse wedges and the vertical wedges are all sound absorption cotton with pointed ends.
The elastic clamp is an elastic clamp which is integrally made of 65Mn material and has an acute angle, one end of the elastic clamp hooks the inner side of the steel rail, and the other end of the elastic clamp clamps a groove on the noise reduction body, so that the noise reduction body can be tightly hooked on the steel rail.
Claims (3)
1. A near-rail noise reduction device for rail transit is characterized by comprising an elastic clamp and a noise reduction body; the noise reduction body is arranged between the sleepers and located in a groove in the outer side of the steel rail, one end of the elastic clamp hooks the inner side of the steel rail, and the other end of the elastic clamp clamps a groove of the noise reduction body.
2. The near-rail noise reduction device for rail transit according to claim 1, wherein the noise reduction body is composed of a rubber frame and sound absorption cotton, the sound absorption cotton is filled in the rubber frame, the end face of the noise reduction body is quadrilateral, one side of the noise reduction body is overlapped with the outer side contour line of the steel rail, two grooves are formed in the noise reduction body, and the noise reduction body is installed on the outer side of the steel rail between two sleepers.
3. The near-rail noise reduction device for rail transit according to claim 1, wherein the noise reduction body is composed of a rubber frame, transverse wedges and vertical wedges, the transverse wedges and the vertical wedges are filled in the rubber frame, the end face of the noise reduction body is quadrilateral, one side of the noise reduction body is overlapped with the outer contour line of a steel rail, two grooves are formed in the noise reduction body, and the noise reduction body is installed on the outer side of the steel rail between two sleepers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089426.4A CN111118976A (en) | 2020-02-12 | 2020-02-12 | Near-rail noise reduction device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089426.4A CN111118976A (en) | 2020-02-12 | 2020-02-12 | Near-rail noise reduction device for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111118976A true CN111118976A (en) | 2020-05-08 |
Family
ID=70492976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010089426.4A Pending CN111118976A (en) | 2020-02-12 | 2020-02-12 | Near-rail noise reduction device for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111118976A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3722439A1 (en) * | 1987-07-07 | 1987-12-23 | Schwartz Heinz | Device for reducing sound energy on a wheel/rail vehicle system |
| WO1993001354A1 (en) * | 1991-07-11 | 1993-01-21 | Jenbacher Transportsysteme Aktiengesellschaft | Noise reduction device for railway tracks |
| KR19990040905U (en) * | 1998-05-11 | 1999-12-06 | 안승철 | Sound-absorbing sound insulation board |
| US6402044B1 (en) * | 1997-02-03 | 2002-06-11 | Yugen Kaisha Koshinsha | Method of damping railroad noise and railroad noise damping members |
| CN102162210A (en) * | 2011-01-21 | 2011-08-24 | 朱颖 | Magnetic constrained damping vibration and noise reduction sheath |
| RU130319U1 (en) * | 2013-04-12 | 2013-07-20 | Общество с ограниченной ответственностью "АКВАБАРЬЕР ИНЖИНИРИНГ" | DEVICE FOR REDUCING NOISE AND / OR VIBRATIONS IN RAIL TRANSPORT |
| KR20140010741A (en) * | 2012-07-16 | 2014-01-27 | 한국철도기술연구원 | Rail for railroad |
| CN104005309A (en) * | 2014-05-10 | 2014-08-27 | 青岛科而泰环境控制技术有限公司 | Shearing type track damping noise reducing device |
| CN203821179U (en) * | 2014-01-20 | 2014-09-10 | 铁道第三勘察设计院集团有限公司 | Vibration damping and noise reduction plate of track |
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| 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 |
| CN108978365A (en) * | 2018-08-13 | 2018-12-11 | 青岛科而泰环境控制技术有限公司 | Rail tunes the method for adjustment of vibration absorber and its intrinsic frequency |
| KR20190035117A (en) * | 2017-09-26 | 2019-04-03 | 주식회사 포스코건설 | Noise and vibration reduction device of lower through bridge |
| CN211922102U (en) * | 2020-02-12 | 2020-11-13 | 山西尚风科技股份有限公司 | Near-rail noise reduction device for rail transit |
-
2020
- 2020-02-12 CN CN202010089426.4A patent/CN111118976A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3722439A1 (en) * | 1987-07-07 | 1987-12-23 | Schwartz Heinz | Device for reducing sound energy on a wheel/rail vehicle system |
| WO1993001354A1 (en) * | 1991-07-11 | 1993-01-21 | Jenbacher Transportsysteme Aktiengesellschaft | Noise reduction device for railway tracks |
| US6402044B1 (en) * | 1997-02-03 | 2002-06-11 | Yugen Kaisha Koshinsha | Method of damping railroad noise and railroad noise damping members |
| KR19990040905U (en) * | 1998-05-11 | 1999-12-06 | 안승철 | Sound-absorbing sound insulation board |
| CN102162210A (en) * | 2011-01-21 | 2011-08-24 | 朱颖 | Magnetic constrained damping vibration and noise reduction sheath |
| KR20140010741A (en) * | 2012-07-16 | 2014-01-27 | 한국철도기술연구원 | Rail for railroad |
| RU130319U1 (en) * | 2013-04-12 | 2013-07-20 | Общество с ограниченной ответственностью "АКВАБАРЬЕР ИНЖИНИРИНГ" | DEVICE FOR REDUCING NOISE AND / OR VIBRATIONS IN RAIL TRANSPORT |
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| CN203821179U (en) * | 2014-01-20 | 2014-09-10 | 铁道第三勘察设计院集团有限公司 | Vibration damping and noise reduction plate of track |
| CN104005309A (en) * | 2014-05-10 | 2014-08-27 | 青岛科而泰环境控制技术有限公司 | Shearing type track damping noise reducing device |
| KR20190035117A (en) * | 2017-09-26 | 2019-04-03 | 주식회사 포스코건설 | Noise and vibration reduction device of lower through bridge |
| 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 |
| CN108978365A (en) * | 2018-08-13 | 2018-12-11 | 青岛科而泰环境控制技术有限公司 | Rail tunes the method for adjustment of vibration absorber and its intrinsic frequency |
| CN211922102U (en) * | 2020-02-12 | 2020-11-13 | 山西尚风科技股份有限公司 | Near-rail noise reduction device for rail transit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211922102U (en) | Near-rail noise reduction device for rail transit | |
| CN101413233A (en) | Method and device for designing shock and vibration absorption type steel rail suspending fastener | |
| CN104894928A (en) | Steel rail vibration absorption device for track traffic | |
| CN107415575B (en) | Railway wheel capable of obviously reducing rail corrugation | |
| CN103993529A (en) | Elastic limiting device of roadbed slab | |
| CN204753273U (en) | Rail shock absorbing means for track traffic | |
| CN201420215Y (en) | Fastener suitable for ballastless tracks of passenger and goods mixed transport | |
| CN203755097U (en) | Underground vibration damping rail fastener | |
| CN201785681U (en) | Fastening device used for urban rail transit | |
| CN111118976A (en) | Near-rail noise reduction device for rail transit | |
| CN203741657U (en) | Elastic vibration reduction rail junction | |
| KR20100067512A (en) | Sleeper for railroad | |
| Meacham et al. | A computer study of dynamic loads caused by vehicle-track interaction | |
| CN203420184U (en) | Vibration-absorption and noise-elimination structure for tramcar | |
| CN102660911A (en) | Shock-absorbing rubber casing shoe for channel-sectional steel rail | |
| CN201671025U (en) | Connecting device for solid concrete roadbed of in-plant railway track | |
| Vincent | Rolling noise control at source: state-of-the-art survey | |
| CN206189195U (en) | Rubber tie plate under compound rail of pressure -shear | |
| CN202989694U (en) | Minor-radius curve railway track capable of resisting corrugation | |
| CN1201050C (en) | Integral optimization for switch parts | |
| KR200312651Y1 (en) | Washer bolt used for fastening device which awwests railroad sound and vibration | |
| CN211142663U (en) | Elastic backing plate | |
| CN201010836Y (en) | Plate-type vibration reducing rail buckle | |
| CN208201510U (en) | A kind of floating plate railway roadbed damper arrangement apparatus | |
| CN203360947U (en) | Elastic strip fastening system for rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |