CN107503251A - Rail grinding machine sound-attenuating system - Google Patents
Rail grinding machine sound-attenuating system Download PDFInfo
- Publication number
- CN107503251A CN107503251A CN201710915532.1A CN201710915532A CN107503251A CN 107503251 A CN107503251 A CN 107503251A CN 201710915532 A CN201710915532 A CN 201710915532A CN 107503251 A CN107503251 A CN 107503251A
- Authority
- CN
- China
- Prior art keywords
- proof housing
- shower nozzle
- sound
- sound proof
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000005498 polishing Methods 0.000 claims abstract description 20
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 9
- 239000011358 absorbing material Substances 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000001902 propagating effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/15—Reducing impact of devices on environment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a kind of rail grinding machine sound-attenuating system, including car body, polishing dolly, grinding head and shower nozzle, polishing dolly is arranged on vehicle bottom, grinding head is arranged on the bottom of polishing dolly, sound proof housing is installed with the vehicle bottom to cover on all grinding heads wherein from lateral surrounding, sound proof housing is sandwich type structure, including inner casing, shell and middle absorbing material layer；The inwall disk for being close to the sound proof housing is furnished with serpentine water pipe, inwall circumferentially-spaced laying of the shower nozzle along sound proof housing, fire pump outside sound proof housing is supplied water by serpentine water pipe for shower nozzle, the water that shower nozzle sprays is in addition to for extinguishing Mars caused by grinding head operation, the overlapping intersection of water that adjacent shower nozzle sprays, the water for finally spraying all shower nozzles surround the annular water curtain of closing.Method by blocking Acoustic Wave Propagation approach and sound absorption, weakens the noise intensity for propagating to surrounding enviroment, reduces noise nuisance during steel rail grinding operation.
Description
Technical field
The invention belongs to field of engineering technology, and in particular to a kind of subway line railway maintenance, maintenance it is important attach troops to a unit set
It is standby --- the sound-attenuating system of rail grinding machine.
Background technology
Rail of subway grinding machine is subway line railway maintenance, the visual plant of maintenance, is responsible for polishing, amendment track ripple
Wave-like abrasion, wheel track scratch, correct railroad flawses, repair the main task of track profile.Vehicle carries out steel rail grinding operation
Window phase was selected at night, and noise caused by operation is high frequency noise, and decibel is high, duration length, to work on the spot people
Member and surrounding enviroment can be produced serious influence and injured.State related requirements provide that the drivers' cab of steel rail grinding operation is made an uproar
Loudness of a sound degree is no more than 68DB, and the outer 30m distant places noise intensity of car is not more than 70dB, therefore is highly desirable to take corresponding technology to arrange
Apply reduce because of steel rail grinding and caused by noise nuisance and influence.
Rail grinding machine is made up of car body, polishing dolly, multiple grinding heads, and equipped with fire pump and shower nozzle.Polishing
Dolly is arranged on vehicle bottom, and grinding head is arranged on the bottom of polishing dolly.During rail grinding, produce normal while noise
Sparks are flying in all directions for often meeting, is sprayed water by shower nozzle and extinguishes Mars, eliminates fire trouble.
The content of the invention
The present invention is intended to provide a kind of rail grinding machine sound-attenuating system, by the side for blocking Acoustic Wave Propagation approach and sound absorption
Method, weaken the noise intensity for propagating to surrounding enviroment, reduce noise nuisance during steel rail grinding operation.
Therefore, the technical solution adopted in the present invention is：A kind of rail grinding machine sound-attenuating system, including car body, polishing it is small
Car, grinding head and shower nozzle, polishing dolly are arranged on vehicle bottom, and grinding head is arranged on the bottom of polishing dolly, in the car body
Bottom is installed with sound proof housing and covers on all grinding heads wherein from lateral surrounding, and sound proof housing is sandwich type structure, including inner casing,
Shell and middle absorbing material layer；The inwall disk for being close to the sound proof housing is furnished with serpentine water pipe, and the shower nozzle is along sound proof housing
Inwall circumferentially-spaced laying, the fire pump outside sound proof housing are supplied water by serpentine water pipe for shower nozzle, what shower nozzle sprayed
Water the overlapping intersection of water of adjacent shower nozzle ejection, finally makes all shower nozzles in addition to for extinguishing Mars caused by grinding head operation
The water of ejection surrounds the annular water curtain of closing.
For one aspect of the present invention using the route of transmission of sound proof housing cut-off noise, its principle is that inside and outside shell is more to noise generation
Secondary reflection, refraction action, in the process, most of noise are absorbed and consumed by middle absorbing material layer, only fraction energy
It is transmitted to outside sound proof housing, so that the sound intensity for propagating to surrounding enviroment substantially reduces；On the other hand water make use of to eliminate the noise
Principle, by increasing water pipe route, absorbed sound so as to expand the contact area of water pipe and noise, while spray water to be formed using shower nozzle
The annular water curtain of closing, strengthen assimilation effect of the water to noise to greatest extent.
As the preferred of such scheme, the interior thickness of the shell is less than outer casing thickness, and sound proof housing is fixed on car by shell
Body bottom.Shell is used for the installation of sound proof housing and car body, and inner casing and shell form interlayer and be used to installing and protecting middle suction ripple material
The bed of material；Being limited by grinding head operation makes sound proof housing bottom and unclosed, if back wave is excessive, to be reflected back the sound of sound proof housing inner chamber
Ripple excessively easily cause it is larger echo, and through sound proof housing bottom reveal, using the structure that inner casing is thin, shell is thick, make by inner casing
Transmitted wave it is more and back wave is few, avoid echoing and reduce the leakage of sound proof housing bottom, at the same transmitted wave through thicker shell again
Transmitted, further weaken the noise traveled to outside sound proof housing.
Further, damping acoustic paint layer is also coated with outside the shell, middle inhale is combined with reference to damping acoustic paint layer
Wave material layer, makes sound proof housing have a dual sqouynd absorption lowering noise effect, and soundproof effect is more notable.
Further, the serpentine water pipe is arranged on " S " being close to sound proof housing inwall disk cloth from top to bottom, the shower nozzle
The bottom of shape water pipe, some supports are installed with inner casing and are used to fixed serpentine water pipe, convenient arrangement are installed as mount point.
Beneficial effects of the present invention：
(1) sandwich establishment formula sound proof housing forms board-like sound-attenuating system, the propagation path of sound wave has been blocked, by reflecting and inhaling
Adduction makes the noise intensity of outflow weaken significantly；
(2) water sound-attenuating system is formed by serpentine water pipe, shower nozzle, increases water pipe path to expand its contact surface with noise
Product, makes full use of fire water absorption of noise；
(3) water curtain that sound-attenuating system and car body bottom surface, water spray are formed during polishing operation forms approximate closed system, can be with
Effectively weaken influence of the polishing operation noise to surrounding enviroment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the noise transmission principle signal under sound proof housing section view state.
Fig. 3 is that shower nozzle sprays water to form the state of closed ring water curtain.
Fig. 4 is the arrangement states that serpentine water pipe is sound proof housing inwall.
Embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described：
With reference to shown in Fig. 1-Fig. 4, a kind of rail grinding machine sound-attenuating system, mainly by car body 1, polishing dolly 2, grinding head
3rd, support 4, shower nozzle 5, sound proof housing 6, serpentine water pipe 7 and fire pump (not shown) composition.
Polishing dolly 2 is arranged on the bottom of car body 1, and grinding head 3 is arranged on the bottom of polishing dolly 2, and polishing dolly 2 is with car body
1 moves along rail together, and carries out polishing operation to rail by grinding head 3.
It is installed with sound proof housing 6 in the bottom of car body 1 to cover on all grinding heads 3 wherein from lateral surrounding, sound proof housing 6 is folder
Layered structure, mainly it is made up of inner casing 6a, shell 6b and middle absorbing material layer 6c.Preferably, also it is coated with outside shell 6b
Damp acoustic paint layer 6d.
As shown in Fig. 2 the inner casing 6a of sound proof housing 6, shell 6b produce multiple reflections, refraction action to noise, in this process
In, most of noise is absorbed and consumed by middle absorbing material layer 6c, and only fraction can be transmitted to outside sound proof housing 6, so that
The sound intensity that surrounding enviroment must be propagated to substantially reduces.
Inner casing 6a thickness is more preferably less than shell 6b thickness, and sound proof housing 6 is fixed on the bottom of car body 1 by shell 6b.Certainly,
Inner casing 6a thickness can also be arranged to and be more than shell 6b thickness, but be less than the soundproof effect of shell 6b thickness not as good as inner casing 6a thickness
It is good, and installed by thicker housing, installation steadiness is also more preferable.
Being limited by the operation of grinding head 3 makes the bottom of sound proof housing 6 and unclosed, if back wave is excessive, to be reflected back in sound proof housing 6
The sound wave of chamber excessively easily cause it is larger echo, and revealed through the bottom of sound proof housing 6, using the structure that inner casing 6a is thin, shell 6b is thick,
Make that the transmitted wave by inner casing 6a is more and back wave is few, avoid echoing and reduce the leakage of the bottom of sound proof housing 6, while transmitted wave passes through
Thicker shell 6b is transmitted again, further weakens the noise for traveling to sound proof housing outer 6.
The inwall disk for being close to sound proof housing 6 is furnished with serpentine water pipe 7, inwall circumferentially-spaced laying of the shower nozzle 5 along sound proof housing 6,
Fire pump outside sound proof housing 6 is supplied water by serpentine water pipe 7 for shower nozzle 5.The water that shower nozzle 5 sprays, which removes, to be used to extinguish
Caused by the operation of grinding head 3 outside Mars, the overlapping intersection of water of the adjacent ejection of shower nozzle 5, finally enclose the water that all shower nozzles 5 spray
Into the annular water curtain 8 (as shown in Figure 4) of closing.
Preferably, serpentine water pipe 7 is arranged on serpentine water pipe 7 being close to the inwall of sound proof housing 6 disk cloth from top to bottom, shower nozzle 5
Bottom, some supports 4 are installed with inner casing 6a and are used to fixed serpentine water pipe 7 be installed as mount points.
Claims (4)
1. a kind of rail grinding machine sound-attenuating system, including car body (1), polishing dolly (2), grinding head (3) and shower nozzle (5), polishing
Dolly (2) is arranged on car body (1) bottom, and grinding head (3) is arranged on the bottom of polishing dolly (2), it is characterised in that：In the car
Body (1) bottom is installed with sound proof housing (6) and covers on all grinding heads (3) wherein from lateral surrounding, and sound proof housing (6) is sandwich-type
Structure, including inner casing (6a), shell (6b) and middle absorbing material layer (6c)；The inwall disk for being close to the sound proof housing (6) is furnished with
Serpentine water pipe (7), inwall circumferentially-spaced laying of the shower nozzle (5) along sound proof housing (6), outside installed in sound proof housing (6)
Fire pump is supplied water by serpentine water pipe (7) for shower nozzle (5), and the water that shower nozzle (5) sprays, which removes, to be used to extinguish grinding head (3) operation
Outside caused Mars, the overlapping intersection of water of adjacent shower nozzle (5) ejection, the water that all shower nozzles (5) spray finally is set to surround closing
Annular water curtain (8).
2. according to the rail grinding machine sound-attenuating system described in claim 1, it is characterised in that：Inner casing (6a) thickness is less than outer
Shell (6b) thickness, and sound proof housing (6) is fixed on car body (1) bottom by shell (6b).
3. according to the rail grinding machine sound-attenuating system described in claim 2, it is characterised in that：The shell (6b) is also coated with outside
Damp acoustic paint layer (6d).
4. according to the rail grinding machine sound-attenuating system any one of claim 1-3, it is characterised in that：The serpentine water
Pipe (7) is being close to sound proof housing (6) inwall disk cloth from top to bottom, and the shower nozzle (5) is installed in the bottom of serpentine water pipe (7), inner casing
Some supports (4) are installed with (6a) to be used to fixed serpentine water pipe (7) be installed as mount point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915532.1A CN107503251A (en) | 2017-09-30 | 2017-09-30 | Rail grinding machine sound-attenuating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915532.1A CN107503251A (en) | 2017-09-30 | 2017-09-30 | Rail grinding machine sound-attenuating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503251A true CN107503251A (en) | 2017-12-22 |
Family
ID=60699748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710915532.1A Pending CN107503251A (en) | 2017-09-30 | 2017-09-30 | Rail grinding machine sound-attenuating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503251A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02272199A (en) * | 1989-04-14 | 1990-11-06 | Railway Technical Res Inst | Reducing method for air-pressure sound in exit from tunnel by water curtain |
| CN2096591U (en) * | 1991-02-09 | 1992-02-19 | 王栋 | Opening type part silence cover |
| JP2003284662A (en) * | 2002-01-23 | 2003-10-07 | Honda Motor Co Ltd | Noise reducer |
| CN103911924A (en) * | 2014-04-22 | 2014-07-09 | 北京二七机车工业有限责任公司 | Polishing unit for steel rail polishing vehicles |
| CN204926786U (en) * | 2015-08-13 | 2015-12-30 | 谢汝兴 | Multistage combined type muffler |
| CN205630230U (en) * | 2016-05-19 | 2016-10-12 | 陈真真 | Hand -held type stone material polisher |
| CN205888901U (en) * | 2016-08-23 | 2017-01-18 | 中国电建集团核电工程公司 | Dustless protection device is used to polisher |
| CN207295354U (en) * | 2017-09-30 | 2018-05-01 | 中车建设工程有限公司 | A kind of rail grinding machine sound-attenuating system |
-
2017
- 2017-09-30 CN CN201710915532.1A patent/CN107503251A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02272199A (en) * | 1989-04-14 | 1990-11-06 | Railway Technical Res Inst | Reducing method for air-pressure sound in exit from tunnel by water curtain |
| CN2096591U (en) * | 1991-02-09 | 1992-02-19 | 王栋 | Opening type part silence cover |
| JP2003284662A (en) * | 2002-01-23 | 2003-10-07 | Honda Motor Co Ltd | Noise reducer |
| CN103911924A (en) * | 2014-04-22 | 2014-07-09 | 北京二七机车工业有限责任公司 | Polishing unit for steel rail polishing vehicles |
| CN204926786U (en) * | 2015-08-13 | 2015-12-30 | 谢汝兴 | Multistage combined type muffler |
| CN205630230U (en) * | 2016-05-19 | 2016-10-12 | 陈真真 | Hand -held type stone material polisher |
| CN205888901U (en) * | 2016-08-23 | 2017-01-18 | 中国电建集团核电工程公司 | Dustless protection device is used to polisher |
| CN207295354U (en) * | 2017-09-30 | 2018-05-01 | 中车建设工程有限公司 | A kind of rail grinding machine sound-attenuating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4213070B2 (en) | Railway soundproofing equipment | |
| US3890060A (en) | Acoustic duct with asymmetric acoustical treatment | |
| CN207295354U (en) | A kind of rail grinding machine sound-attenuating system | |
| US20130009002A1 (en) | Turboshaft engine supporting pylon covered with a porous material and turboshaft engine/pylon assembly | |
| CN102256870A (en) | Aircraft cabin panel for sound reduction | |
| CN212673970U (en) | Protection device for tunnel blasting | |
| CN107503251A (en) | Rail grinding machine sound-attenuating system | |
| JP2007001375A (en) | Railway vehicle with sound absorption structure panel | |
| EP2271805B1 (en) | Method for the reduction of sound | |
| CN213539953U (en) | Protective baffle with telescopic structure for tunnel construction | |
| CN106671506A (en) | Noise-reducing protective structure and preparation method thereof | |
| CN206145292U (en) | Drain pipe noise reduction device | |
| CN204225889U (en) | A kind of adjustable coal cutter external spraying device | |
| JP6616169B2 (en) | Interior panel and railway vehicle equipped with the interior panel | |
| JP2006256398A (en) | Railway vehicle and method of manufacturing noise absorbing material | |
| CN105586845B (en) | Suction cup assembly and sweeper | |
| CN205776044U (en) | A kind of vehicle multifunction dust suppression car | |
| JPH0717402A (en) | Preventive device of rail from generating creaking sound | |
| CN204847707U (en) | Low noise elevator car | |
| CN208627499U (en) | A kind of crusher with sound-deadening and noise-reducing function | |
| CN209719528U (en) | A kind of Vehicle radar cleaning device | |
| CN212508476U (en) | High-efficient elbow silencer | |
| JP2005180121A (en) | Soundproof structure of platform of station | |
| CN216663883U (en) | Noise reduction device for road | |
| CN210887645U (en) | Sound-insulation heat-preservation layer used outside power equipment |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100078 501, 503, 5th floor, building 15, fangchengyuan 1st District, Fengtai District, Beijing Applicant after: CRRC Intelligent Transportation Engineering Technology Co.,Ltd. Address before: 100078 501, 503, 5th floor, building 15, fangchengyuan 1st District, Fengtai District, Beijing Applicant before: CRRC CONSTRUCTION ENGINEERING Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |