CN208950689U - Novel inner-spiral type diesel engine impedance composite muffler - Google Patents
Novel inner-spiral type diesel engine impedance composite muffler Download PDFInfo
- Publication number
- CN208950689U CN208950689U CN201821559691.9U CN201821559691U CN208950689U CN 208950689 U CN208950689 U CN 208950689U CN 201821559691 U CN201821559691 U CN 201821559691U CN 208950689 U CN208950689 U CN 208950689U
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- Prior art keywords
- acoustic damping
- mounting ring
- damping mesh
- fixedly connected
- mesh mounting
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Abstract
The utility model discloses novel inner-spiral type diesel engine impedance composite mufflers, belong to agricultural equipment Diesel engine silencing means field, novel inner-spiral type diesel engine impedance composite muffler, including hush tube, the lower end of hush tube is fixedly connected with tapered cylinder, the lower end of tapered cylinder is fixedly connected with air inlet pipe, air inlet pipe is fixedly connected with sealed connection plate far from one end of tapered cylinder, sound expansion chambers are connected in tapered cylinder, helical blade is fixedly connected on the inner wall of hush tube, the upside of helical blade is equipped with acoustic damping mesh mounting ring, digging on the inner wall of hush tube has the thread groove to match with acoustic damping mesh mounting ring, acoustic damping mesh mounting ring is threadedly coupled with thread groove, honeycomb acoustic damping mesh is connected in acoustic damping mesh mounting ring, the stop collar to match with acoustic damping mesh mounting ring is fixedly connected on the inner wall of hush tube, it may be implemented to be easy to subtract Few noise and the flow velocity that gas is discharged.
Description
Technical field
The utility model relates to agricultural equipment Diesel engine silencing means fields, more specifically to novel inner-spiral type diesel oil
Machine impedance composite muffler.
Background technique
The advantages of diesel engine is burning diesel oil to obtain exergonic engine, diesel engine be torque it is big,
Economic performance is good.There are many identical place, each working cycles also pass through the course of work and petrol engine of diesel engine
Go through four air inlet, compression, acting and exhaust strokes.But since the fuel of use for diesel engine is diesel oil, its viscosity is bigger than gasoline, no
Be easy evaporation, and its autoignition temperature is lower than gasoline, therefore, the formation of combustion mixture and sparking mode all with gasoline engine not
Together.Difference mainly has, and the gaseous mixture in the cylinder of diesel engine is compression ignition, and non-ignition.Diesel engine work
When making, what it is into cylinder is air, and when the air in cylinder is compressed to terminal, temperature can achieve 500-700 DEG C, pressure
Power can achieve 40-50 atmospheric pressure.
And in diesel engine work, the larger flow velocity of extraction flow is also fast, is easy to produce biggish noise, and the noise of generation holds
Noise pollution easily formed to ambient enviroment, existing diesel muffler is that one section of section is connect on airflow channel pipe is biggish thick
Pipe, but its terminal is tubule, adjusts the section button length of expansion chambers (big pipe) to change the reflection and interference performance of sound wave, thus
Change sound deadening capacity and maximum frequency of noise elimination, has good low frequency acoustic attenuation performance the disadvantage is that noise elimination frequency band is narrow, there is larger limitation
Property, effect is not best.
Utility model content
1. technical problems to be solved
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide the resistances of novel inner-spiral type diesel engine
Anti- composite type silencer, it may be implemented to be easily reduced noise and the flow velocity of gas be discharged.
2. technical solution
To solve the above problems, the utility model adopts the following technical scheme.
Novel inner-spiral type diesel engine impedance composite muffler, including hush tube, the lower end of the hush tube is fixed to be connected
It is connected to tapered cylinder, the lower end of the tapered cylinder is fixedly connected with air inlet pipe, the one end of the air inlet pipe far from tapered cylinder
It is fixedly connected with sealed connection plate, sound expansion chambers, fixed company on the inner wall of the hush tube are connected in the tapered cylinder
It is connected to helical blade, the upside of the helical blade is equipped with acoustic damping mesh mounting ring, and digging on the inner wall of the hush tube has and disappear
The thread groove that sound net mounting ring matches, the acoustic damping mesh mounting ring are threadedly coupled with thread groove, in the acoustic damping mesh mounting ring
It is connected with honeycomb acoustic damping mesh, the stop collar to match with acoustic damping mesh mounting ring is fixedly connected on the inner wall of the hush tube, easily
In the flow velocity for reducing noise and discharge gas.
Further, the upper end of the acoustic damping mesh mounting ring is fixedly connected with fixed plate, and the center of the fixed plate is dug
There is cross recess, fixed plate can be allowed to drive the rotation of acoustic damping mesh mounting ring by tool and cross recess cooperation, facilitate acoustic damping mesh mounting ring
It is taken out from thread groove.
Further, there are three equally distributed cylinder cards for one end cutting of the acoustic damping mesh mounting ring far from fixed plate
Slot, card column is connected in three cylinder card slots, and the acoustic damping mesh mounting ring is equipped with round gear far from the side of fixed plate
Ring, three card columns are fixedly connected with round baffle ring, are easy to fixed cellular acoustic damping mesh, are kept honeycomb acoustic damping mesh not easily to fall off.
Further, it is connected with sealing ring between the stop collar and acoustic damping mesh mounting ring, is easy to increase acoustic damping mesh installation
Air-tightness between ring and hush tube.
Further, the lower end of the stop collar is fixedly connected with the deflector to match with acoustic damping mesh mounting ring, is easy to
By the honeycomb acoustic damping mesh in the air-flow guiding acoustic damping mesh mounting ring in hush tube.
3. beneficial effect
Compared with the prior art, utility model has the advantages that
(1) this programme is easily reduced noise and the flow velocity of gas is discharged.
(2) upper end of acoustic damping mesh mounting ring is fixedly connected with fixed plate, and the center of fixed plate, which is dug, cross recess, can pass through
Tool and cross recess cooperation allow fixed plate to drive the rotation of acoustic damping mesh mounting ring, and acoustic damping mesh mounting ring is facilitated to take out from thread groove.
(3) there are three equally distributed cylinder card slot, three cylinders for one end cutting of the acoustic damping mesh mounting ring far from fixed plate
Be connected with card column in card slot, acoustic damping mesh mounting ring is equipped with round baffle ring far from the side of fixed plate, three card columns with circle
Baffle ring is fixedly connected, and is easy to fixed cellular acoustic damping mesh, keeps honeycomb acoustic damping mesh not easily to fall off.
(4) it is connected with sealing ring between stop collar and acoustic damping mesh mounting ring, is easy to increase acoustic damping mesh mounting ring and hush tube
Between air-tightness.
(5) lower end of stop collar is fixedly connected with the deflector to match with acoustic damping mesh mounting ring, and being easy to will be in hush tube
Air-flow guiding acoustic damping mesh mounting ring in honeycomb acoustic damping mesh.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model；
Fig. 2 is the cross-sectional view of the utility model；
Structural schematic diagram in Fig. 3 Fig. 2 at A；
Fig. 4 is the perspective view of the acoustic damping mesh mounting ring of the utility model；
Fig. 5 is the broken away view of the acoustic damping mesh mounting ring of the utility model.
Figure label explanation:
1 hush tube, 2 tapered cylinders, 3 air inlet pipe, 4 are tightly connected plate, 5 acoustic damping mesh mounting rings, 6 honeycomb acoustic damping meshes, 7 limits
Ring, 8 sealing rings, 9 helical blades, 10 sound expansion chambers, 11 fixed plates, 12 round baffle rings, 13 card columns.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe；Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", " top/bottom end " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also be with
It is to be detachably connected, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be with
Indirectly connected through an intermediary, it can be the connection inside two elements.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Embodiment 1:
Fig. 1-5, novel inner-spiral type diesel engine impedance composite muffler, including hush tube 1 are please referred to, hush tube 1
Lower end is fixedly connected with tapered cylinder 2, and the lower end of tapered cylinder 2 is fixedly connected with air inlet pipe 3, the gas of air inlet pipe 3 and diesel engine
The deferent that circulates connects, and air inlet pipe 3 is fixedly connected with far from one end of tapered cylinder 2 and is tightly connected plate 4, is tightly connected plate 4 and is used for
The connection of the airflow channel pipe of air inlet pipe 3 and diesel engine is sealed, sound expansion chambers 10, sound expansion are connected in tapered cylinder 2
Room 10 weakens sound wave, helical blade 9, spiral shell is fixedly connected on the inner wall of hush tube 1 for sound wave to be interfered and reflected
Vane piece 9 can also extend the exhaust pathway of gas, be easy to reduce gas temperature, spiral shell for sound wave to be absorbed and reflected
The upside of vane piece 9 is equipped with acoustic damping mesh mounting ring 5, and the upper end of acoustic damping mesh mounting ring 5 is fixedly connected with fixed plate 11, fixed plate 11
Center dig and have cross recess, can allow fixed plate 11 that acoustic damping mesh mounting ring 5 is driven to rotate by tool and cross recess cooperation, it is convenient
Acoustic damping mesh mounting ring 5 is taken out from thread groove, and there are three be uniformly distributed for one end cutting of the acoustic damping mesh mounting ring 5 far from fixed plate 11
Cylinder card slot, card column 13 is connected in three cylinder card slots, acoustic damping mesh mounting ring 5 is equipped with circle far from the side of fixed plate 11
Shape baffle ring 12, three card columns 13 are fixedly connected with round baffle ring 12, are easy to fixed cellular acoustic damping mesh 6, are made honeycomb acoustic damping mesh 6 not
Easy to fall off, digging on the inner wall of hush tube 1 has the thread groove to match with acoustic damping mesh mounting ring 5, acoustic damping mesh mounting ring 5 and screw thread
Slot is threadedly coupled, and honeycomb acoustic damping mesh 6 is connected in acoustic damping mesh mounting ring 5, and honeycomb acoustic damping mesh 6 disappears for absorbing and reducing noise
The stop collar 7 to match with acoustic damping mesh mounting ring 5, stop collar 7 and acoustic damping mesh mounting ring 5 are fixedly connected on the inner wall of sound pipe 1
Between be connected with sealing ring 8, be easy to increase the air-tightness between acoustic damping mesh mounting ring 5 and hush tube 1, the lower end of stop collar 7 is solid
Surely it is connected with the deflector to match with acoustic damping mesh mounting ring 5, is easy to the air-flow in hush tube 1 being oriented to acoustic damping mesh mounting ring 5
Interior honeycomb acoustic damping mesh 6.
In use, gas enters tapered cylinder 2 by air inlet pipe 3, the sound wave in tapered cylinder 2 is by interference and reflection
It changes and then flows into helical blade 9, helical blade 9 increases exhaust pathway length, on the one hand can have to sound wave
The absorption and reflection of effect change wavelength of sound, on the other hand can reduce gas flow temperature, and raising safety coefficient appropriate is passed through
The gas that helical blade 9 flows out flows into honeycomb acoustic damping mesh 6, and sound passes through from the aperture on honeycomb acoustic damping mesh 6, makes the wavelength of sound
It changes, partial sound is transformed into the sound that can not be heard, and then achievees the purpose that reduce noise, after long-term use, bee
Nest acoustic damping mesh 6 is easy discharged air stream contamination and causes to block, and needs that honeycomb acoustic damping mesh 6 is cleaned or replaced at this time,
In maintenance, Phillips screwdriver can be inserted into the cross recess in fixed plate 11 by technical staff, then rotated, make fixed plate 11
It drives acoustic damping mesh mounting ring 5 to rotate in thread groove, acoustic damping mesh mounting ring 5 can be taken out from hush tube 1, take out acoustic damping mesh
Round baffle ring 12 is pulled out outward after mounting ring 5, card column 13 and cylinder exact separation is made to can be taken off honeycomb acoustic damping mesh 6, compared to existing
Some devices, this programme are easy to slow down the flow velocity of discharge gas, are easy to reduce impact force when gas discharge, fundamentally weaken
The power resources that sound issues, are easy to weaken noise.
The preferable specific embodiment of the above, only the utility model；But the protection scope of the utility model is not
It is confined to this.Anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the protection scope of the utility model
It is interior.
Claims (5)
1. novel inner-spiral type diesel engine impedance composite muffler, including hush tube (1), it is characterised in that: the hush tube
(1) lower end is fixedly connected with tapered cylinder (2), and the lower end of the tapered cylinder (2) is fixedly connected with air inlet pipe (3), described
Air inlet pipe (3) is fixedly connected with far from the one end of tapered cylinder (2) and is tightly connected plate (4), is connected in the tapered cylinder (2)
Sound expansion chambers (10) are fixedly connected with helical blade (9) on the inner wall of the hush tube (1), the helical blade (9) it is upper
Side is equipped with acoustic damping mesh mounting ring (5), and digging on the inner wall of the hush tube (1) has the spiral shell to match with acoustic damping mesh mounting ring (5)
Groove, the acoustic damping mesh mounting ring (5) are threadedly coupled with thread groove, are connected with honeycomb noise reduction in the acoustic damping mesh mounting ring (5)
Net (6) is fixedly connected with the stop collar (7) to match with acoustic damping mesh mounting ring (5) on the inner wall of the hush tube (1).
2. novel inner-spiral type diesel engine impedance composite muffler according to claim 1, it is characterised in that: described to disappear
The upper end of sound net mounting ring (5) is fixedly connected with fixed plate (11), and the center of the fixed plate (11), which is dug, cross recess.
3. novel inner-spiral type diesel engine impedance composite muffler according to claim 1, it is characterised in that: described to disappear
There are three equally distributed cylinder card slot, three cylinder cards for one end cutting of the sound net mounting ring (5) far from fixed plate (11)
It being connected in slot card column (13), the acoustic damping mesh mounting ring (5) is equipped with round baffle ring (12) far from the side of fixed plate (11),
Three card columns (13) are fixedly connected with round baffle ring (12).
4. novel inner-spiral type diesel engine impedance composite muffler according to claim 1, it is characterised in that: the limit
Sealing ring (8) are connected between position ring (7) and acoustic damping mesh mounting ring (5).
5. novel inner-spiral type diesel engine impedance composite muffler according to claim 1, it is characterised in that: the limit
The lower end of position ring (7) is fixedly connected with the deflector to match with acoustic damping mesh mounting ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821559691.9U CN208950689U (en) | 2018-09-25 | 2018-09-25 | Novel inner-spiral type diesel engine impedance composite muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821559691.9U CN208950689U (en) | 2018-09-25 | 2018-09-25 | Novel inner-spiral type diesel engine impedance composite muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950689U true CN208950689U (en) | 2019-06-07 |
Family
ID=66739189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821559691.9U Expired - Fee Related CN208950689U (en) | 2018-09-25 | 2018-09-25 | Novel inner-spiral type diesel engine impedance composite muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294074A (en) * | 2021-12-15 | 2022-04-08 | 安徽加文汽车零部件有限公司 | Green type car muffler |
-
2018
- 2018-09-25 CN CN201821559691.9U patent/CN208950689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294074A (en) * | 2021-12-15 | 2022-04-08 | 安徽加文汽车零部件有限公司 | Green type car muffler |
| CN114294074B (en) * | 2021-12-15 | 2023-06-09 | 安徽加文汽车零部件有限公司 | Environment-friendly automobile muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20200925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |