CN106979051A - A kind of diesel oil mining machinery exhaust pipe silencer - Google Patents
A kind of diesel oil mining machinery exhaust pipe silencer Download PDFInfo
- Publication number
- CN106979051A CN106979051A CN201710326923.XA CN201710326923A CN106979051A CN 106979051 A CN106979051 A CN 106979051A CN 201710326923 A CN201710326923 A CN 201710326923A CN 106979051 A CN106979051 A CN 106979051A
- Authority
- CN
- China
- Prior art keywords
- sound attenuation
- pipe
- tube
- diesel oil
- inner tube
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
- F01N1/125—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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 present invention relates to mine mechanism field, specifically related to a kind of diesel oil mining machinery exhaust pipe silencer, including sound attenuation and hush pipe, the middle part curl of hush pipe is simultaneously located in sound attenuation, the two ends of hush pipe are into straight tubulose respectively as air outlet and air inlet port, air inlet port and air outlet extend through the front end face and rear end face of sound attenuation, in sound attenuation, acoustical cotton is partially filled with outside hush pipe, sound attenuation is followed successively by sound-absorbing damping tube layer and outer sound insulation steel pipe layer from inside to outside, hush pipe includes inner and outer tubes, inner tube is connected with air inlet port and air outlet, and space is left between inner and outer tubes, and the rear and front end mouthful of outer tube and the outer wall of inner tube are tightly connected, some passages are uniformly offered in inner tube, some muffler chambers are uniformly offered on the madial wall of outer tube；The present invention is simple in construction, can be very good to slow down the speed of air-flow, effectively from source noise reduction so that exhaust noise is reduced as far as possible.
Description
Technical field
The present invention relates to mine mechanism field, and in particular to a kind of diesel oil mining machinery exhaust pipe silencer.
Background technology
Mining machinery is the machinery for being directly used in the operations such as mineral mining and Fu Xuan.Including mining machine and benficiation machinery.
The operation principle and structure of mine locating machinery and the mining machine used in the similar mineral of exploitation are mostly same or similar, inventionbroadly,
Mine locating machinery falls within mining machinery.There are many machinery of few diesel oil in mining machinery, the Diesel engine of diesel oil machinery is
Burning diesel oil obtains exergonic engine.The thermal efficiency and better economy, diesel engine using the method for compressed air come
Air themperature is improved, air themperature is exceeded the self-ignition point of diesel oil, the same of diesel oil, diesel spray and air mixing is at this moment sprayed into again
When oneself ignition.Therefore, Diesel engine is without ignition system.Meanwhile, the oil supply system of diesel engine is also relatively easy, because
The reliability of this Diesel engine is better than petrol engine.Due to not by detonation limited and diesel oil spontaneous combustion the need for,
Diesel engine compression ratio is very high.The thermal efficiency and economy will be better than gasoline engine, while in the case of equal-wattage, diesel engine
Moment of torsion is big, and rotating speed during peak power is low, is suitable for the use of cargo vehicle.Diesel engine is due to comparing heavy, power per liter
Index is not so good as gasoline engine (rotating speed is relatively low), and noise, vibration are higher, and the blast pipe of existing diesel oil machinery is relatively simple, Er Qiekuang
Mountain machinery General Oscillation is all than stronger, and exhaust noise is larger.
The content of the invention
The problem of existing for prior art, the noise for solving existing diesel oil mining machinery blast pipe is larger, this hair
It is bright to provide a kind of diesel oil mining machinery exhaust pipe silencer.
Concrete technical scheme is as follows：
A kind of diesel oil mining machinery exhaust pipe silencer, including sound attenuation and hush pipe, the middle part of the hush pipe
Curl is simultaneously in the sound attenuation, and the two ends of the hush pipe are into straight tubulose respectively as air outlet and air inlet
Port, the air inlet port and the air outlet extend through the front end face and rear end face of the sound attenuation, the noise reduction
Be partially filled with acoustical cotton in housing, outside the hush pipe, the sound attenuation be followed successively by from inside to outside sound-absorbing damping tube layer and
Outer sound insulation steel pipe layer, the hush pipe includes inner and outer tubes, said inner tube and the air inlet port and the air outlet phase
Connection, and space, and rear and front end mouthful and the outer wall of said inner tube of the outer tube are left between said inner tube and the outer tube
It is tightly connected, is uniformly offered in said inner tube and uniformly offer some noise reductions on some passages, the madial wall of the outer tube
Cavity；
It is preferred that, said inner tube is followed successively by the outer steel pipe layer of steel pipe layer in noise reduction, acoustical cotton tube layer and noise reduction from inside to outside；
It is preferred that, the sound attenuation is into cylinder；
It is preferred that, the muffler chamber is cylindrical blind hole；
It is preferred that, said inner tube is sheathed on the center of the outer tube；
It is preferred that, the hush pipe is arranged in the center of the sound attenuation.
Beneficial effect：
The present invention is simple in construction, when exhaust airstream enters the hush pipe in sound attenuation from air inlet port, a part of gas
Flow through the inner tube helical structure of hush pipe and slow down, slowly discharged from air outlet；Another part air-flow enters through passage
In the outer tube of hush pipe, when the pressure in the inner tube that the pressure in outer tube and inner tube interlayer is more than hush pipe, air-flow in interlayer
In the inner tube of hush pipe that can enter again again, the track route of air-flow is extended, flow velocity is reduced, the effect of exhaust noise abatement is reached,
And the inwall of outer tube is provided with muffler chamber, it can be very good to slow down the speed of air-flow, further slow down exhaust noise；In noise reduction
The double-deck setting of filling silencing cotton and sound attenuation between pipe and sound attenuation, effectively from source noise reduction so that exhaust is made an uproar
Sound is reduced as far as possible.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1：The structural representation of the present invention；
Fig. 2：The cross-sectional view of the hush pipe of the present invention.
Reference is as follows：
1st, sound attenuation, 101, sound-absorbing damping tube layer, 102, outer sound insulation steel pipe layer, 2, acoustical cotton, 3, hush pipe, 4, interior
Pipe, 401, steel pipe layer in noise reduction, 402, acoustical cotton tube layer, 403, the outer steel pipe layer of noise reduction, 5, outer tube, 501, muffler chamber, 6, enter
Gas port, 7, air outlet, 8, passage.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in the embodiment of the present invention
Technical scheme is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than entirely
The embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of protection of the invention.
With reference to Fig. 2, referring to Fig. 1：A kind of diesel oil mining machinery exhaust pipe silencer, including sound attenuation 1 and hush pipe
3.The sound attenuation 1 is into cylinder.
The middle part curl of the hush pipe 3 is simultaneously located in the sound attenuation 1, the two ends Cheng Ping of the hush pipe 3
Straight tube-like extends through described disappear respectively as air outlet 7 and air inlet port 6, the air inlet port 6 and the air outlet 7
The front end face and rear end face of sound housing 1.The hush pipe 3 is arranged in the center of the sound attenuation 1.
Acoustical cotton 2 is partially filled with the sound attenuation 1, outside the hush pipe 3.
The sound attenuation 1 is followed successively by sound-absorbing damping tube layer 101 and outer sound insulation steel pipe layer 102 from inside to outside.
The hush pipe 3 includes inner tube 4 and outer tube 5, said inner tube 4 and the air inlet port 6 and the phase of the air outlet 7
Connection, and space, and rear and front end mouthful and the said inner tube 4 of the outer tube 5 are left between said inner tube 4 and the outer tube 5
Outer wall is tightly connected, and some passages 8 are uniformly offered in said inner tube 4, if uniformly being offered on the madial wall of the outer tube 5
Dry muffler chamber 501.The muffler chamber 501 is cylindrical blind hole.During said inner tube 4 is sheathed on inside the outer tube 5
Centre.
Said inner tube 4 is followed successively by the outer steel pipe layer of steel pipe layer 401 in noise reduction, acoustical cotton tube layer 402 and noise reduction from inside to outside
403。
The present invention is simple in construction, when exhaust airstream enters the hush pipe 3 in sound attenuation 1 from air inlet port 6, a part
Air-flow slows down through the helicoidal structure of inner tube 4 of hush pipe 3, is slowly discharged from air outlet 7；Another part air-flow is through passage
8 enter in the outer tube 5 of hush pipe 3, when the pressure in the inner tube 4 that the pressure in outer tube 5 and the interlayer of inner tube 4 is more than hush pipe 3,
In interlayer air-flow can enter again again hush pipe 3 inner tube 4 in, extend the track route of air-flow, reduce flow velocity, reach exhaust
The effect of noise abatement, and the inwall of outer tube 5 is provided with muffler chamber 501, can be very good to slow down the speed of air-flow, further slows down
Exhaust noise；The double-deck setting of silencing cotton and sound attenuation 1 is filled between hush pipe 3 and sound attenuation 1, effectively from source
Head noise reduction so that exhaust noise is reduced as far as possible.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a kind of diesel oil mining machinery exhaust pipe silencer, it is characterised in that：Including sound attenuation and hush pipe, the noise reduction
The middle part curl of pipe is simultaneously in the sound attenuation, and the two ends of the hush pipe are into straight tubulose respectively as outlet side
Mouth and air inlet port, the air inlet port and the air outlet extend through the front end face and rear end face of the sound attenuation,
Acoustical cotton is partially filled with the sound attenuation, outside the hush pipe, the sound attenuation is followed successively by sound-absorbing resistance from inside to outside
Buddhist nun's tube layer and outer sound insulation steel pipe layer, the hush pipe include inner and outer tubes, said inner tube and the air inlet port and it is described go out
Gas port is connected, and leaves space between said inner tube and the outer tube, and the rear and front end mouthful of the outer tube with it is described interior
The outer wall of pipe is tightly connected, and is uniformly offered and is uniformly offered on some passages, the madial wall of the outer tube in said inner tube
Some muffler chambers.
2. diesel oil mining machinery exhaust pipe silencer as claimed in claim 1, it is characterised in that：Said inner tube is from inside to outside
It is followed successively by the outer steel pipe layer of steel pipe layer in noise reduction, acoustical cotton tube layer and noise reduction.
3. diesel oil mining machinery exhaust pipe silencer as claimed in claim 1, it is characterised in that：The sound attenuation Cheng Yuan
Cylinder.
4. diesel oil mining machinery exhaust pipe silencer as claimed in claim 1, it is characterised in that：The muffler chamber is circle
The blind hole of cylindricality.
5. diesel oil mining machinery exhaust pipe silencer as claimed in claim 1, it is characterised in that：Said inner tube is sheathed on institute
State the center of outer tube.
6. diesel oil mining machinery exhaust pipe silencer as claimed in claim 1, it is characterised in that：The hush pipe is arranged in
The center of the sound attenuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326923.XA CN106979051A (en) | 2017-05-10 | 2017-05-10 | A kind of diesel oil mining machinery exhaust pipe silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326923.XA CN106979051A (en) | 2017-05-10 | 2017-05-10 | A kind of diesel oil mining machinery exhaust pipe silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106979051A true CN106979051A (en) | 2017-07-25 |
Family
ID=59342077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326923.XA Pending CN106979051A (en) | 2017-05-10 | 2017-05-10 | A kind of diesel oil mining machinery exhaust pipe silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106979051A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553281A (en) * | 2017-08-07 | 2018-01-09 | 苏州曼柯精密部件有限公司 | A kind of priming paint polishing rotary head with silencing means |
| CN108425719A (en) * | 2018-05-17 | 2018-08-21 | 潍柴动力股份有限公司 | Muffler and automobile |
| CN111102036A (en) * | 2019-11-30 | 2020-05-05 | 徐州恒佳机械科技有限公司 | Tail gas silencing pipe for mining machinery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918989A1 (en) * | 1999-04-27 | 2000-12-14 | Eberspaecher J Gmbh & Co | Exhaust gas ducting used with engine-independent heater of motor vehicle has one-piece flexible inner helical pipe with sound-insulated perforated long section and encompassed gastight by one-piece flexible outer pipe |
| CN202012390U (en) * | 2011-04-06 | 2011-10-19 | 圣丰铨企业有限公司 | Eddy exhaust discharging device |
| CN205532785U (en) * | 2016-04-29 | 2016-08-31 | 徐振 | Muffler is used in automobile engine exhaust |
-
2017
- 2017-05-10 CN CN201710326923.XA patent/CN106979051A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918989A1 (en) * | 1999-04-27 | 2000-12-14 | Eberspaecher J Gmbh & Co | Exhaust gas ducting used with engine-independent heater of motor vehicle has one-piece flexible inner helical pipe with sound-insulated perforated long section and encompassed gastight by one-piece flexible outer pipe |
| CN202012390U (en) * | 2011-04-06 | 2011-10-19 | 圣丰铨企业有限公司 | Eddy exhaust discharging device |
| CN205532785U (en) * | 2016-04-29 | 2016-08-31 | 徐振 | Muffler is used in automobile engine exhaust |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553281A (en) * | 2017-08-07 | 2018-01-09 | 苏州曼柯精密部件有限公司 | A kind of priming paint polishing rotary head with silencing means |
| CN108425719A (en) * | 2018-05-17 | 2018-08-21 | 潍柴动力股份有限公司 | Muffler and automobile |
| CN111102036A (en) * | 2019-11-30 | 2020-05-05 | 徐州恒佳机械科技有限公司 | Tail gas silencing pipe for mining machinery |
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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: 20170725 |
|
| RJ01 | Rejection of invention patent application after publication |