CN102314870A - New-type noise-reducing sponge for excavating-machine cab - Google Patents
New-type noise-reducing sponge for excavating-machine cab Download PDFInfo
- Publication number
- CN102314870A CN102314870A CN 201110189721 CN201110189721A CN102314870A CN 102314870 A CN102314870 A CN 102314870A CN 201110189721 CN201110189721 CN 201110189721 CN 201110189721 A CN201110189721 A CN 201110189721A CN 102314870 A CN102314870 A CN 102314870A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- noise
- sponge
- sound
- reduction sponge
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 9
- 229920004934 Dacron® Polymers 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- -1 ultrapas Substances 0.000 claims description 2
- 239000011358 absorbing material Substances 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention aims to provide a new-type noise-reducing sponge for an excavating-machine cab, wherein a high-density sound-absorbing material is selected, sound-absorbing noise-reducing holes at intervals of 8mm are densely distributed in the sponge, the inner surface of each sound-absorbing noise-reducing hole is sandglass-shaped from the top to the bottom, and averagely-distributed annular grooves are arranged on the wall of the inner surface, so that the sound-absorbing rate of the sponge can be increased to 70-80 percent, and the noise-reducing effect is good.
Description
Technical field
The present invention relates to a kind of new-type noise reduction sponge that is used for the excavating-machine operator chamber, belong to engineering machinery field.
Background technology
At present; Mostly the noise reduction measure of hydraulic excavator cab is inboard with hood near the coaming plate of engine side in the cab chamber on the market; Install spun glass additional, foam class polyurethane sponge material comes sound-absorbing, and the polyurethane sponge of foam class is low-density porous material, acoustic absorptivity is low; Noise reduction is bad, directly affects operating personnel's level of comfort and efficiency.
Summary of the invention
In order to overcome above-mentioned defective; Guarantee that operating environment is comfortable, convenient; Satisfy people-machine engineering; Be beneficial to operating personnel efficiently, work reliably, we have invented a kind of new-type noise reduction sponge that is used for the excavating-machine operator chamber, select the high density acoustical material for use; Densely covered 8 millimeters absorbing sound and lowering noise hole at interval in the sponge; The inside surface in absorbing sound and lowering noise hole is from falling down to be "
" shape, and inner wall surface is provided with the groove of the annular that is evenly distributed, and the sound field when having improved the inner sound-absorbing in sponge noise reduction hole thus distributes; Make the acoustic absorptivity of sponge can be increased to 70%--80%, noise reduction is good.
Description of drawings
Accompanying drawing 1 is front view of the present invention;
Accompanying drawing 2 is P of the present invention portion zoomed-in view;
Accompanying drawing 3 is the inner section figure in noise reduction hole.
Embodiment
Do further description below in conjunction with accompanying drawing 1, accompanying drawing 2 and 3 couples of the present invention of accompanying drawing: select the high density acoustical material for use; Densely covered 8 millimeters absorbing sound and lowering noise hole at interval in the sponge; The inside surface in absorbing sound and lowering noise hole is from falling down to be "
" shape, and inner wall surface is provided with the groove of the annular that is evenly distributed.Sound field in the time of can improving inside, sponge noise reduction hole sound-absorbing like this distributes, and makes the acoustic absorptivity of sponge can be increased to 70%--80%.
The high density acoustical material here is meant more than 50 density at least, more preferably more than 80 density.Highdensity acoustical material quality is harder, is convenient to the processing of noise reduction hole inner structure like this.Highdensity acoustical material can have been bought in market, preferably is made up of materials such as dacron, ultrapas, gypsum or potteries here.
The diameter in absorbing sound and lowering noise hole preferably in the surface is 0.8 millimeter, and the weakness in centre is 0.4 millimeter.Said "
" shape also preferably about, laterally zygomorphic, can certainly be asymmetric.
In addition; The degree of depth in noise reduction hole is selectable; The angle of inclination of the oblique line of "
" shape is adjustable; Between preferred 15 °-75 °, be more preferably 45 °.
Can be provided with the groove of the annular that is evenly distributed on the inner wall surface.The degree of depth of said groove also is optional, and preferred depth is between the 0.1-0.3 millimeter.And the degree of depth of said groove also can increase along with reducing of noise reduction bore dia.Can realize better noise reduction control like this.
The present invention is explained by the foregoing description, but is not limited to the foregoing description.Any all is feasible in improvement that does not deviate from spirit of the present invention and intention and modification.These are also within protection scope of the present invention.
Claims (7)
1. new-type noise reduction sponge that is used for the excavating-machine operator chamber; It is characterized in that selecting for use the high density acoustical material; Densely covered 8 millimeters absorbing sound and lowering noise hole at interval in the sponge; The inside surface in absorbing sound and lowering noise hole is from falling down to be "
" shape, and inner wall surface is provided with the groove of the annular that is evenly distributed.
2. noise reduction sponge according to claim 1, wherein said high density are more than 50 density at least.
3. noise reduction sponge according to claim 1, wherein said acoustical material are any one in dacron, ultrapas, gypsum or the pottery.
4. noise reduction sponge according to claim 1, the diameter in wherein said absorbing sound and lowering noise hole in the surface is 0.8 millimeter, the weakness in centre is 0.4 millimeter.
5. noise reduction sponge according to claim 4, the degree of depth of wherein said groove becomes big along with reducing of noise reduction bore dia gradually.
6. noise reduction sponge according to claim 1, wherein said "
" shape be about, laterally zygomorphic.
7. noise reduction sponge according to claim 1, the angle of inclination of the oblique line of wherein said "
" shape is 15 °-75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189721 CN102314870B (en) | 2011-07-07 | 2011-07-07 | New-type noise-reducing sponge for excavating-machine cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189721 CN102314870B (en) | 2011-07-07 | 2011-07-07 | New-type noise-reducing sponge for excavating-machine cab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102314870A true CN102314870A (en) | 2012-01-11 |
| CN102314870B CN102314870B (en) | 2013-06-26 |
Family
ID=45427982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110189721 Active CN102314870B (en) | 2011-07-07 | 2011-07-07 | New-type noise-reducing sponge for excavating-machine cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102314870B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658898Y (en) * | 2003-09-25 | 2004-11-24 | 崔涛 | Magnesite foam sound absorbing board |
| CN2881876Y (en) * | 2006-01-26 | 2007-03-21 | 江苏双赢声学装备有限公司 | Acoustical-sound insulation board |
| CN201532760U (en) * | 2009-11-10 | 2010-07-21 | 浙江舒肤特聚氨酯科技有限公司 | Peak sponge |
-
2011
- 2011-07-07 CN CN 201110189721 patent/CN102314870B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658898Y (en) * | 2003-09-25 | 2004-11-24 | 崔涛 | Magnesite foam sound absorbing board |
| CN2881876Y (en) * | 2006-01-26 | 2007-03-21 | 江苏双赢声学装备有限公司 | Acoustical-sound insulation board |
| CN201532760U (en) * | 2009-11-10 | 2010-07-21 | 浙江舒肤特聚氨酯科技有限公司 | Peak sponge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102314870B (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5004809B2 (en) | Cutting and dust collecting assembly and processing equipment comprising such an assembly | |
| CA2672836A1 (en) | Superabrasive cutting elements with enhanced durability and increased wear life, and drilling apparatus so equipped | |
| CN1530924A (en) | Resin composition for shockproof materials, shockproof materials and soundproof elements | |
| KR20110079703A (en) | Drag head for a trailing suction hopper dredger and method for dredging using this drag head | |
| CN202159482U (en) | Novel noise reduction sponge for excavator cabs | |
| CN102314870B (en) | New-type noise-reducing sponge for excavating-machine cab | |
| CN104695346A (en) | Sound barrier acoustic board structure | |
| CN204609027U (en) | A kind of novel sound insulating screen | |
| US8522899B2 (en) | Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit | |
| CN101266786A (en) | A muffler for muffling water pool and its making method | |
| CN104727752B (en) | A kind of polycrystal diamond composite teeth and its manufacture method and a kind of drill bit | |
| CN204510044U (en) | A kind of sound-absorbing barrier structure | |
| EP4082766A1 (en) | Flooring panel | |
| CN209229985U (en) | A kind of air-conditioning noise elimination air channel structure of anechoic room | |
| CN100492491C (en) | Microporous sound absorbing structure | |
| CN105544843A (en) | Sound-insulation type autoclaved aerated concrete building block | |
| CN210798009U (en) | Indoor floor slab structure with sound insulation mortar | |
| KR101373091B1 (en) | Interfloor noise proofing material for reducing floor impact sound | |
| CN210118099U (en) | Anchor rod drill bit | |
| CN209146490U (en) | A kind of pulley gear being laid with casing | |
| JP2005200913A (en) | Sound absorbing plate | |
| RU2764761C1 (en) | Drill bit | |
| JPH10331117A (en) | Sound absorbing wall structure | |
| CN217151841U (en) | Reducing pile reaming drag bit | |
| CN210918679U (en) | Tool for leveling groove on lower side of cross gate stone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160616 Granted publication date: 20130626 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20161216 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20161216 Granted publication date: 20130626 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170616 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20170616 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200616 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200616 Granted publication date: 20130626 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230616 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230616 Granted publication date: 20130626 |