CN105486749B - Car acpistocs part grade sound insulation measurement wall - Google Patents
Car acpistocs part grade sound insulation measurement wall Download PDFInfo
- Publication number
- CN105486749B CN105486749B CN201610056275.6A CN201610056275A CN105486749B CN 105486749 B CN105486749 B CN 105486749B CN 201610056275 A CN201610056275 A CN 201610056275A CN 105486749 B CN105486749 B CN 105486749B
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- Prior art keywords
- sound insulation
- outer framework
- wall
- insulation measurement
- sound
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
Abstract
This application discloses a kind of car acpistocs part grade sound insulation measurement walls, it is installed between reverberation chamber and anechoic room, including outer framework, the outer framework has the cavity communicated before and after one, it is fixed by the bracket vehicle body in the cavity, the front and rear sides of the vehicle body are sealed with light-weight brick respectively, sound-absorbing material are filled between the light-weight brick, there are two forklift holes for the lower section formation of the outer framework.The utility model replaces manually, worker being avoided directly to operate as possible, having saved working hour due to the use of special equipment, has saved manually, has more improved safety；The utility model device can be substantially reduced due to that can recycle to the waste to material；For the utility model by the structure of wall and sound-proof wall, arrange in pairs or groups fixed block and nut can reinforce the stability after installation；The utility model while can substantially reducing sound-proof wall dead weight, reinforces the sound insulation property of wall, makes test data truer due to largely using light-duty sound insulating material.
Description
Technical field
This application involves a kind of car acpistocs part grade sound insulation measurement walls.
Background technology
Traditional car acpistocs part grade sound insulation measurement method includes：
1), cut vehicle body, it would be desirable to component be placed into sound-insulation wall；
2), filling concrete pours；
3) it, is carried using manpower, sound-proof wall is moved in sound insulation window；
4) adjustment and installation (fully relying on manpower, without guiding mechanism, installation is very difficult, relatively time consuming), is carried out；
5), the gap between window and sound-proof wall is sealed.
It is had the following technical problems using the above method：
1) it, is carried using manpower, since sound insulation wall size is larger, operating space is smaller, and industrial injury easily occurs for when dismounting
Accident.
2) gap is smaller between wall when, installing, and installation difficulty is big, and time-consuming.
3), sound-proof wall can not be recycled for multiple times, and can only be scrapped using finishing, testing cost is higher.
4), sound-proof wall reverberation chamber side surface only considers to insulate against sound, and the influence to entire reverberation chamber does not consider that surface of wall can not
As reflecting surface, there is certain influence to entire reverberation field.
Invention content
The purpose of the present invention is to provide a kind of car acpistocs part grade sound insulation measurement wall, with overcome it is in the prior art not
Foot.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application discloses a kind of car acpistocs part grade sound insulation measurement wall, be installed on reverberation chamber and anechoic room it
Between, including outer framework, the outer framework has the cavity communicated before and after one, has been fixed by the bracket vehicle body in the cavity, institute
The front and rear sides for stating vehicle body are sealed with light-weight brick respectively, are filled with sound-absorbing material between the light-weight brick, under the outer framework
It is rectangular at there are two forklift holes.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, the outer framework has the main body of cuboid
The side in portion, the main part protrudes out the opening extension that gradually property reduces, and the other side of the main part has protruded out ring around
The mounting portion of shape offers multiple mounting holes on the mounting portion, and the main part and extension surround the cavity.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, the inner wall of the main part and extension is convex
Stretching has reinforcing rib.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, the holder includes vertical welding in described
The first steel pipe between vehicle body and outer framework and horizontal the second steel pipe being welded between the vehicle body and outer framework.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, first steel pipe and the second steel pipe use
Wall thickness is more than 3mm, the long square tube for being more than 30mm, being wider than 20mm.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, the light-weight brick material meets：Sound insulation property
Higher than 53dB；Density is in 400~650kg/m3Between.
Preferably, in above-mentioned car acpistocs part grade sound insulation measurement wall, the density of sound-absorbing material is less than 15kg/m3。
Preferably, it in above-mentioned car acpistocs part grade sound insulation measurement wall, is formed between the reverberation chamber and anechoic room
Have installation passage, the form fit of the shape of the installation passage and the outer framework, and the inner wall of the installation passage with it is described
Gap between the outer wall of outer framework is 3~5mm.
Compared with the prior art, the advantages of the present invention are as follows：
(1), the utility model replaces artificial due to the use of special equipment, worker can be avoided directly to operate as possible, save work
When, it has saved manually, has more improved safety；
(2), the utility model device can be substantially reduced due to that can recycle to the waste to material, a large amount of to save
Money (primary test expends 20-25w)；
(3), by the structure of wall and sound-proof wall, arrange in pairs or groups fixed block and nut can be reinforced steady after installation the utility model
It is qualitative.
(4), the utility model while can substantially reducing sound-proof wall dead weight, is reinforced due to largely using light-duty sound insulating material
The sound insulation property of wall makes test data truer.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 show the schematic diagram that reverberation chamber is connected to anechoic room in the specific embodiment of the invention；
Fig. 2 show the dimensional structure diagram of outer framework in the specific embodiment of the invention；
Fig. 3 show the side view after outer framework installation vehicle body in the specific embodiment of the invention；
Fig. 4 show the side view after outer framework installation light-weight brick in the specific embodiment of the invention；
Fig. 5 show the structural schematic diagram that sound insulation measurement wall is installed in the specific embodiment of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
In conjunction with shown in Fig. 1, car acpistocs part grade sound insulation measurement wall is installed between reverberation chamber 1 and anechoic room 2, packet
Include outer framework 3.
In conjunction with shown in Fig. 2 to Fig. 4, outer framework 3 has the cavity 301 communicated before and after one, is fixed by the bracket in cavity 301
There are vehicle body 4, the front and rear sides of vehicle body 4 to be sealed with light-weight brick 5 respectively, sound-absorbing material 6 is filled between light-weight brick, outer framework 3
There are two forklift holes 302 for lower section formation.
There is outer framework 3 main part 303 of cuboid, the side of the main part to protrude out the opening extension that gradually property reduces
304, the other side of the main part 303 protrudes out the mounting portion 305 of annular around, and multiple peaces are offered on mounting portion 305
Hole 306 is filled, main part 303 and extension 304 surround the cavity 301.
Further, the inner wall of main part 303 and extension 304 has protruded out reinforcing rib 307.
In the technical scheme, it is reinforced using reinforcing rib structure, ensures that it is not deformed under external force.
Further, holder includes first steel pipe 701 and horizontal welding of the vertical welding between vehicle body 4 and outer framework
The second steel pipe 702 being connected between vehicle body and outer framework.First steel pipe and the second steel pipe are more than using wall thickness more than 3mm, length
30mm, the square tube for being wider than 20mm.
In the technical scheme, steel pipe is welded on as reinforcing member between metal plate and vehicle body.
Further, light-weight brick material meets：Sound insulation property is higher than 53dB；Density is in 400~650kg/m3Between；Lightweight
Brick intensity need to be the 85% of itself intensity, need to reserve two forklift holes
Further, the density of sound-absorbing material is less than 15kg/m3。
Also to meet：
1, the material should reach fire-retardant fireproof requirement
2, the material need to reach moisture-proof requirement
Further, installation passage 9 is formed between reverberation chamber and anechoic room, the shape and outer framework of the installation passage 9
Form fit, and the gap between the inner wall of installation passage and the outer wall of outer framework be 3~5mm.
After sound insulation measurement wall is completed, by carrying out integral installation shown in Fig. 5.Using fixed block by sound-proof wall and metope
It is fixed, and fastening bolt.
In conclusion the utility model has the following advantages that：
1) artificial method is replaced to complete the installation of wall using machinery
2) overall weight of sound-proof wall is reduced on the premise of ensuring performance by reasonably designing
3) wall and frame structure are improved, keep it more convenient in installation, stablizes
4) outline border can be recycled for multiple times, and greatly reduce testing expense
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific implementation mode of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection domain of the application.
Claims (7)
1. a kind of car acpistocs part grade sound insulation measurement wall, is installed between reverberation chamber and anechoic room, which is characterized in that including
Outer framework, the outer framework have the cavity communicated before and after one, vehicle body have been fixed by the bracket in the cavity, the vehicle body
Front and rear sides are sealed with light-weight brick respectively, and sound-absorbing material is filled between the light-weight brick, is formed with below the outer framework
Two forklift holes；
There is the outer framework main part of cuboid, the side of the main part to protrude out the opening extension that gradually property reduces, should
The other side of main part protrudes out the mounting portion of annular around, and multiple mounting holes, the master are offered on the mounting portion
Body portion and extension surround the cavity.
2. car acpistocs part grade sound insulation measurement wall according to claim 1, it is characterised in that：The main part and extension
The inner wall in portion has protruded out reinforcing rib.
3. car acpistocs part grade sound insulation measurement wall according to claim 1, it is characterised in that：The holder includes vertical
The first steel pipe being welded between the vehicle body and outer framework and horizontal second be welded between the vehicle body and outer framework
Steel pipe.
4. car acpistocs part grade sound insulation measurement wall according to claim 3, it is characterised in that：First steel pipe and
Two steel pipes are more than 3mm, the long square tube for being more than 30mm, being wider than 20mm using wall thickness.
5. car acpistocs part grade sound insulation measurement wall according to claim 1, it is characterised in that：The light-weight brick material is full
Foot：Sound insulation property is higher than 53dB；Density is between 400~650kg/m3.
6. car acpistocs part grade sound insulation measurement wall according to claim 1, it is characterised in that：The density of sound-absorbing material is small
In 15kg/m3.
7. car acpistocs part grade sound insulation measurement wall according to claim 1, it is characterised in that：The reverberation chamber and noise elimination
Installation passage is formed between room, the form fit of the shape of the installation passage and the outer framework, and the installation passage
Gap between inner wall and the outer wall of the outer framework is 3~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056275.6A CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056275.6A CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105486749A CN105486749A (en) | 2016-04-13 |
| CN105486749B true CN105486749B (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610056275.6A Active CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018564B (en) * | 2016-07-25 | 2018-09-04 | 上海声望声学科技股份有限公司 | A kind of test frame structure |
| CN106979977A (en) * | 2017-02-17 | 2017-07-25 | 广州汽车集团股份有限公司 | Automobile front wall sound insulation property Forecasting Methodology |
| CN109307711B (en) * | 2018-11-28 | 2022-01-25 | 中车长春轨道客车股份有限公司 | Train through passage sound insulation performance test method based on reverberation chamber and anechoic chamber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2669689A1 (en) * | 2012-05-29 | 2013-12-04 | MBDA UK Limited | A chamber for testing electrical and electronic apparatus |
| CN103439407A (en) * | 2013-08-09 | 2013-12-11 | 无锡吉兴汽车声学部件科技有限公司 | Tool for carrying out sound insulation testing on automobile acoustic part material |
| US8854246B1 (en) * | 2011-11-02 | 2014-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of converting an electromagnetic anechoic test chamber to an electromagnetic reverberation test chamber |
| CN105201378A (en) * | 2015-08-19 | 2015-12-30 | 上海华特汽车配件有限公司 | Sound insulation window with composite structure |
-
2016
- 2016-01-26 CN CN201610056275.6A patent/CN105486749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8854246B1 (en) * | 2011-11-02 | 2014-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of converting an electromagnetic anechoic test chamber to an electromagnetic reverberation test chamber |
| EP2669689A1 (en) * | 2012-05-29 | 2013-12-04 | MBDA UK Limited | A chamber for testing electrical and electronic apparatus |
| CN103439407A (en) * | 2013-08-09 | 2013-12-11 | 无锡吉兴汽车声学部件科技有限公司 | Tool for carrying out sound insulation testing on automobile acoustic part material |
| CN105201378A (en) * | 2015-08-19 | 2015-12-30 | 上海华特汽车配件有限公司 | Sound insulation window with composite structure |
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| Publication number | Publication date |
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| CN105486749A (en) | 2016-04-13 |
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