CN107152358A - Engineering machinery intake noise reduction device - Google Patents
Engineering machinery intake noise reduction device Download PDFInfo
- Publication number
- CN107152358A CN107152358A CN201710444518.8A CN201710444518A CN107152358A CN 107152358 A CN107152358 A CN 107152358A CN 201710444518 A CN201710444518 A CN 201710444518A CN 107152358 A CN107152358 A CN 107152358A
- Authority
- CN
- China
- Prior art keywords
- resonance
- silencer
- exhaust silencer
- reduction device
- resonator
- 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
- 230000009467 reduction Effects 0.000 title claims abstract description 12
- 230000003584 silencer Effects 0.000 claims abstract description 31
- 238000011045 prefiltration Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/14—Combined air cleaners and silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1288—Intake silencers ; Sound modulation, transmission or amplification combined with or integrated into other devices ; Plurality of air intake silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/164—Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of engineering machinery intake noise reduction device, it is related to construction machinery production technical field, including engine, expansion silencer, air cleaner, resonance exhaust silencer, air inlet prefilter, outlet of the engine by expanding silencer and air cleaner is connected, and the import of the air cleaner is connected by resonance exhaust silencer with air inlet prefilter；The resonance exhaust silencer includes housing, and the inner space of the housing is divided into two resonator chambers and the intermediate cavity between two resonator chambers by two pieces of dividing plates respectively, and the intermediate cavity is provided with the resonance trunnion for being respectively communicated with two resonator chambers.Than prior art, the present invention can solve existing excavator driver's parotic noise it is big the problem of.
Description
Technical field
The present invention relates to construction machinery production technical field, especially a kind of intake noise reduction device of use excavator.
Background technology
Engineering machinery especially excavator intake system noise frequency is relatively low, and penetrability is stronger, to driver's parotic noise
Influence it is larger, particularly idling when, driver's parotic noise is very big, and subjective feeling is extremely uncomfortable；At present, excavator gas handling system
Noise be not controlled using specific aim measure typically, the continuous improvement required with ambient noise, ISO63962008 with
The limit value of GB16710-2010 equal strict regulations earthmoving machinery driver's parotic noise is 80 decibels, and European Union EC instructions must be to entering
The earthmoving machinery product for entering European market carries out Third Party Authentication or identification, otherwise must not be sold, therefore, made an uproar in the market
Sound problem is to determine one of important prerequisite that construction machinery product is sold in the world, is also the pass of energy-saving and emission-reduction urgent need to resolve
One of key technology, signifies the core technology level such as comfortableness, stability of construction machinery product.Furthermore, too high driver's ear
Other noise can seriously damage driver's hearing, and driver works under 85 decibels of noise circumstance, lived, is easily caused and listens for a long time
Power dies down, or even becomes deaf, and the size of driver's parotic noise has influence on the acoustic comfort of driver.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of engineering machinery intake noise reduction device, to solve existing excavation
The problem of driver's parotic noise of machine is big.
The technical proposal for solving the technical problem of the invention is：This engineering machinery intake noise reduction device includes starting
Machine, outlet of the engine by expanding silencer and air cleaner is connected, and the import of the air cleaner passes through altogether
The silencer that shakes is connected with air inlet prefilter；The resonance exhaust silencer includes housing, and the inner space of the housing is respectively by two pieces
Dividing plate is divided into two resonator chambers and the intermediate cavity between two resonator chambers, and the intermediate cavity is provided with difference
Connect the resonance trunnion of two resonator chambers.
In above-mentioned engineering machinery intake noise reduction device technique scheme, more specifically technical scheme can also be：Described in two
Resonator chamber is respectively the first resonator chamber and the second resonator chamber, and the air inlet of the resonance exhaust silencer and gas outlet are each provided at
On the shell wall of the intermediate cavity.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：1st, air leads to
Cross air inlet prefilter and enter resonance exhaust silencer, the low-frequency noise in two resonator chambers in induction noise frequency is decayed；
Air is by entering expansion silencer after resonance exhaust silencer, in the change of expansion silencer application acoustic impedance, cuts down induction noise
In middle strong noise, increase gas handling system sound deadening capacity；2nd, by installing this intake noise reduction device, driver's ear in driver's cabin can be made
Other noise is reduced in 74 decibels, the limit value less than 80 decibels, while machine external radiation noise is reduced, solves engine idling
When, the interior acoustic problems produced of driver's cabin, so as to improve complete machine idling comfortableness.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of the resonance exhaust silencer of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described：
Engineering machinery intake noise reduction device as shown in Figure 1 include engine 5, engine 5 by pipeline with
The outlet connection of silencer 4 is expanded, the import of expansion silencer 4 is connected by pipeline with the outlet of air cleaner 3, empty
The import of air cleaner 3 is connected by pipeline with the gas outlet of resonance exhaust silencer 2, and the air inlet of resonance exhaust silencer 2 passes through air inlet
Pipeline is connected with the outlet of air inlet prefilter 1；Resonance exhaust silencer 2 includes housing 2-9, housing 2-9 inner space difference
It is divided into two resonator chambers by two pieces of dividing plates and the intermediate cavity 2-3 between the two resonator chambers, intermediate cavity 2-3 is set
There is the resonance trunnion for being respectively communicated with two resonator chambers；Housing 2-9 inner space is divided into by dividing plate 2-10 and dividing plate 2-7
One resonator chamber 2-1 and the second resonator chamber 2-6, resonance trunnion has two, and resonate trunnion 2-2 and resonance trunnion 2-5 respectively, altogether
The trunnion 2-5 that shakes is arranged on dividing plate 2-7, and resonance trunnion 2-2 is arranged on dividing plate 2-10；The air inlet 2-8 of resonance exhaust silencer 2 and
Gas outlet 2-4 is each provided on intermediate cavity 2-3 shell wall, and the air inlet 2-8 of resonance exhaust silencer 2 is pre- with air inlet by air inlet pipeline
The outlet connection of filter 1, the gas outlet 2-4 of resonance exhaust silencer 2 is connected by pipeline with the import of air cleaner 3.
During work, air enters resonance exhaust silencer 3 by air inlet prefilter 1, because the inside of resonance exhaust silencer 3 sets first
Resonator chamber 2-1 and the second resonator chamber 2-6, the low-frequency noise in two resonator chambers in induction noise frequency is declined
Subtract；Air by after resonance exhaust silencer 3 enter expansion silencer 4, expansion silencer 4 application acoustic impedance change, cut down into
Middle strong noise in gas noise, increases driver's parotic noise control in the sound deadening capacity of gas handling system, driver's cabin low in 74 decibels
In 80 decibels of limit value；By installing this intake noise reduction device while machine external radiation noise is reduced, engine idling is solved
When, the interior acoustic problems produced of driver's cabin.
Claims (2)
1. a kind of engineering machinery intake noise reduction device, including engine（5）, it is characterised in that：The engine（5）Pass through expansion
Silencer（4）With air cleaner（3）Outlet connection, the air cleaner（3）Import pass through resonance exhaust silencer（2）With
Air inlet prefilter（1）Connection；The resonance exhaust silencer（2）Including housing（2-7）, the housing（2-7）Inner space difference
It is divided into two resonator chambers and the intermediate cavity between two resonator chambers by two pieces of dividing plates（2-3）, the centre
Chamber（2-3）Provided with the resonance trunnion for being respectively communicated with two resonator chambers.
2. engineering machinery intake noise reduction device according to claim 1, it is characterised in that：Two resonator chamber difference
For the first resonator chamber（2-1）With the second resonator chamber（2-6）, the resonance exhaust silencer（2）Air inlet and gas outlet be all provided with
In the intermediate cavity（2-3）Shell wall on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444518.8A CN107152358A (en) | 2017-06-13 | 2017-06-13 | Engineering machinery intake noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444518.8A CN107152358A (en) | 2017-06-13 | 2017-06-13 | Engineering machinery intake noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107152358A true CN107152358A (en) | 2017-09-12 |
Family
ID=59796019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710444518.8A Pending CN107152358A (en) | 2017-06-13 | 2017-06-13 | Engineering machinery intake noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152358A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5264211U (en) * | 1975-11-07 | 1977-05-12 | ||
| CN201021648Y (en) * | 2006-12-14 | 2008-02-13 | 比亚迪股份有限公司 | A novel impedance compound muffling system for car engine air supply system |
| CN202756138U (en) * | 2012-08-11 | 2013-02-27 | 郭荣 | Silencer capable of simultaneously eliminating noises of wide band and narrow band |
| CN204804904U (en) * | 2015-03-31 | 2015-11-25 | 徐工集团工程机械股份有限公司 | Noise eliminator and engine |
| CN206158895U (en) * | 2016-10-26 | 2017-05-10 | 长城汽车股份有限公司 | Air intake muffler subassembly and vehicle |
-
2017
- 2017-06-13 CN CN201710444518.8A patent/CN107152358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5264211U (en) * | 1975-11-07 | 1977-05-12 | ||
| CN201021648Y (en) * | 2006-12-14 | 2008-02-13 | 比亚迪股份有限公司 | A novel impedance compound muffling system for car engine air supply system |
| CN202756138U (en) * | 2012-08-11 | 2013-02-27 | 郭荣 | Silencer capable of simultaneously eliminating noises of wide band and narrow band |
| CN204804904U (en) * | 2015-03-31 | 2015-11-25 | 徐工集团工程机械股份有限公司 | Noise eliminator and engine |
| CN206158895U (en) * | 2016-10-26 | 2017-05-10 | 长城汽车股份有限公司 | Air intake muffler subassembly and vehicle |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170912 |
|
| RJ01 | Rejection of invention patent application after publication |