CN2484409Y - Air-inlet silencer of tractor - Google Patents
Air-inlet silencer of tractor Download PDFInfo
- Publication number
- CN2484409Y CN2484409Y CN 01221328 CN01221328U CN2484409Y CN 2484409 Y CN2484409 Y CN 2484409Y CN 01221328 CN01221328 CN 01221328 CN 01221328 U CN01221328 U CN 01221328U CN 2484409 Y CN2484409 Y CN 2484409Y
- Authority
- CN
- China
- Prior art keywords
- tractor
- air
- noise
- intake
- housing
- 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 - Lifetime
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- Exhaust Silencers (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An air-inlet silencer of tractor is characterized in that the air-inlet silencer of tractor comprises a noise elimination shell, an air-inlet silencing porous pipe which passes through the shell in the axial direction and a cover plate of the air-inlet silencer which is arranged at two ends of the noise elimination shell so as to close the ring-shaped space between the shell and the air-inlet silencing porous pipe. The air-inlet silencer is additionally arranged, thus effectively lowering the air-inlet noises.
Description
The application is application number the dividing an application for the utility model application of " tractor intake and exhaust silencing apparatus " that be 00249425.6 denomination of invention.
The utility model relates to a kind of Noise Control Device, relates to a kind of intake silencer of tractor specifically.
Along with environmental requirement is more and more higher, the noise objective of tractor is had higher requirement, specifically, for example national requirements rises to category-A by the original C class; For wheeled tractor, stipulate by JB/T50092-1997: dynamic environment noise is acceptable product＜=86dB (A), Grade A＜=85dB (A), high-class product; The simple and easy operator cabin of wheeled tractor band and be not acceptable product＜=95dB (A) with the noise at tractor operator's position of operator cabin, Grade A＜=94dB (A), high-class product＜=93dB (A); And being acceptable product, Grade A and high-class product, the noise at tractor operator's position of wheeled tractor band operator cabin is＜=90dB (A).The other noise of the ear of present wheeled tractor does not all reach the requirement of existing legislations for noise basically, and this just badly influences the market of tractor product and the quality reputation of outlet and product.Testing result shows that tractor intake and exhaust noise is one of main noise source of tractor.A large amount of total noise of centrifuge test result show: have only the intake and exhaust sound-attenuating system that improves tractor to be only the effective way that reduces the tractor total noise of centrifuge, and adopt not only cost height of other noise-reduction method, and produce little effect.And existing gas handling system just is to adopt the straight tube of a uniform section to be connected between prefilter and air-strainer, does not adopt intake noise reduction measure thereby induction noise bigger.
Therefore, the purpose of this utility model provides a kind of Tractor Inlet Silencer with good noise reduction, reduces the other noise of tractor ear effectively to meet the requirement of environmental regulation.
For achieving the above object, the utility model provides a kind of intake silencer, and it comprises: a noise elimination housing; One axially by the intake noise reduction perforated tube of described housing, and its two ends are fixedly connected with an air cleaner duct and a prefilter connecting tube respectively; And be arranged on the described noise elimination housing two ends intake silencer cover plate with the annular space between enclosing housing and intake noise reduction perforated tube.
Adopt technique scheme of the present utility model,, reduced induction noise effectively owing to set up intake silencer; Like this, by adopting intake silencer of the present utility model can reduce the total noise of centrifuge of tractor effectively.
Specifically describe below in conjunction with the intake silencer of accompanying drawing, so that more be expressly understood the purpose of this utility model, characteristics and advantage the utility model one preferred embodiment.
Fig. 1 is vertical half sectional view of the intake silencer of the utility model one preferred embodiment;
Fig. 2 is the sectional drawing of being got along H-H line among Fig. 8.
As illustrated in fig. 1 and 2, intake silencer of the present utility model, it comprises: a noise elimination housing 18; One axially by the intake noise reduction perforated tube 16 of described housing 18, and its two ends are fixedly connected with an air cleaner duct 15 and a prefilter connecting tube 20 respectively; And be arranged on the two ends of described noise elimination housing 18 intake silencer cover plate 17 with the annular space of 16 of enclosing housing 18 and intake noise reduction perforated tubes.Intake noise reduction perforated tube 16 is provided with a plurality of apertures 24 that are communicated with the housing noise elimination cavity corresponding to the tube wall of intake noise reduction housing 4.Like this, enter described noise elimination cavity by each aperture through a part of air inlet of prefilter (not shown) before entering air-strainer (not shown), thereby also reduced induction noise.
The structure and the preparation process of intake silencer of the present utility model are simple, but can reduce noise effectively, make the other noise objective of tractor ear reach the requirement that improves relevant environmental regulation.500 type tractors carry out overall test and detect and to show that its noise objective has reached the requirement of high-class product in Shanghai.Compare with former machine, the acoustical absorptivity of gas handling system has improved 5.5dB (A), and power loss has reduced 0.26kW.
Claims (2)
1. a Tractor Inlet Silencer is characterized in that it comprises: a noise elimination housing; One axially by the intake noise reduction perforated tube of described housing, and its two ends are fixedly connected with an air cleaner duct and a prefilter connecting tube respectively; And be arranged on the described noise elimination housing two ends intake silencer cover plate with the annular space between enclosing housing and intake noise reduction perforated tube.
2. Tractor Inlet Silencer as claimed in claim 1 is characterized in that, a plurality of holes of described intake noise reduction perforated tube are arranged on its tube wall relative with the noise elimination cavity of described noise elimination housing to be communicated with described intake noise reduction perforated tube and noise elimination housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221328 CN2484409Y (en) | 2001-05-17 | 2001-05-17 | Air-inlet silencer of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221328 CN2484409Y (en) | 2001-05-17 | 2001-05-17 | Air-inlet silencer of tractor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249425 Division CN2467798Y (en) | 2000-09-26 | 2000-09-26 | Muffler for tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2484409Y true CN2484409Y (en) | 2002-04-03 |
Family
ID=33638600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01221328 Expired - Lifetime CN2484409Y (en) | 2001-05-17 | 2001-05-17 | Air-inlet silencer of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2484409Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323226C (en) * | 2003-05-30 | 2007-06-27 | 三菱重工业株式会社 | Air intake system and forklift equipped with it |
| CN105020072A (en) * | 2015-07-30 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Engine air inlet system and air filter assembly thereof |
-
2001
- 2001-05-17 CN CN 01221328 patent/CN2484409Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323226C (en) * | 2003-05-30 | 2007-06-27 | 三菱重工业株式会社 | Air intake system and forklift equipped with it |
| CN105020072A (en) * | 2015-07-30 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Engine air inlet system and air filter assembly thereof |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100926 Granted publication date: 20020403 |