CN217926043U - Noise eliminator, exhaust aftertreatment assembly and agricultural machine - Google Patents
Noise eliminator, exhaust aftertreatment assembly and agricultural machine Download PDFInfo
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- CN217926043U CN217926043U CN202222148800.0U CN202222148800U CN217926043U CN 217926043 U CN217926043 U CN 217926043U CN 202222148800 U CN202222148800 U CN 202222148800U CN 217926043 U CN217926043 U CN 217926043U
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- exhaust
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- mesh ring
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Abstract
The utility model relates to a noise eliminator, exhaust aftertreatment assembly and agricultural machinery relates to exhaust aftertreatment field, noise eliminator's exhaust mesh ring has the blast pipe installing port that is located the middle part and centers on a plurality of meshes that the blast pipe installing port set up to divide into first cavity and second cavity with the inside of shell, the exhaust outlet duct lower extreme passes the shell in proper order, first cavity and blast pipe installing port and with exhaust mesh ring sealing connection, and the lower extreme tip seals, the exhaust outlet duct lateral wall that is located first cavity has a plurality of exhaust holes. The exhaust aftertreatment assembly comprises a muffler device, and the agricultural machine comprises the exhaust aftertreatment assembly. The beneficial effects are that: the first and second chambers may act to dampen sound. The lower end of the exhaust outlet pipe is closed and extends into one part of the second chamber, and the part of the exhaust outlet pipe is not provided with a hole, so that a certain amount of sundries and rainwater entering from one end of the exhaust outlet pipe can be contained, and the sundries and the rainwater are prevented from entering the exhaust aftertreatment equipment.
Description
Technical Field
The utility model relates to an exhaust aftertreatment field, concretely relates to noise eliminator, exhaust aftertreatment assembly and agricultural machine.
Background
The agricultural mechanical product is released in the non-road state four emission, an exhaust post-treatment assembly product of the whole machine product is usually arranged outside a hood of the whole machine, the operation environment of the whole machine is severe, weed crop fragments are generated at the periphery of the exhaust post-treatment assembly and are easy to blow to the surface of the exhaust post-treatment, and fire risk is easy to occur when the exhaust post-treatment assembly touches high-temperature parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of how avoid rainwater or debris to fall into exhaust aftertreatment equipment and eliminate the noise.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a silencing device, includes shell, exhaust outlet duct and exhaust mesh ring, exhaust mesh ring has the blast pipe installing port that is located the middle part and centers on a plurality of meshes that the blast pipe installing port set up, exhaust mesh ring's outer wall with shell inner wall sealing connection, and will the inside of shell divide into the first cavity and the second cavity that set up from top to bottom, the second cavity has the air inlet, exhaust outlet duct's upper end is located the shell is outer and uncovered, and the lower extreme from top to bottom passes in proper order the shell first cavity with the blast pipe installing port with exhaust mesh ring sealing connection, just exhaust outlet duct lower extreme tip seals, is located in the first cavity exhaust outlet duct lateral wall has a plurality of exhaust holes.
The beneficial effects of the utility model are that: the exhausted tail gas firstly enters the second chamber, then enters the first chamber from the meshes of the exhaust mesh ring, then enters the exhaust outlet pipe through the exhaust holes, and is exhausted from the upper end of the exhaust outlet pipe. The first and second chambers may act to dampen sound.
The lower end of the exhaust outlet pipe is closed and extends into one part of the second chamber, and the part of the exhaust outlet pipe is not provided with a hole, so that a certain amount of sundries and rainwater entering from the upper end of the exhaust outlet pipe can be contained, and the sundries and the rainwater are prevented from entering the exhaust aftertreatment equipment.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Optionally, a portion of the exhaust mesh ring close to the exhaust pipe mounting opening is recessed downward.
Optionally, the exhaust mesh ring is arranged in an upward inclined manner from the exhaust pipe mounting opening to the outer wall.
The beneficial effect of adopting the above further scheme is: the rainwater that enters into the exhaust outlet pipe that splashes flows down from the inside and outside wall of exhaust outlet pipe, and the rainwater of outer wall can collect arch or inclined plane department that is close to the blast pipe installing port along exhaust mesh ring, and then can follow in the exhaust hole inflow exhaust outlet pipe of exhaust outlet pipe lateral wall, and interim storage avoids influencing exhaust aftertreatment equipment.
Further, the axis of the exhaust mesh ring is parallel or collinear with the axis of the exhaust outlet pipe.
Further, the lateral wall of the second chamber is also provided with a sensor interface.
The beneficial effect of adopting the further scheme is that: the sensor interface is used for installing sensors required by exhaust aftertreatment.
Further, still include the insulating layer, the insulating layer is fixed in the outer wall of shell.
The beneficial effect of adopting the further scheme is that: the heat insulating layer is used for insulating and protecting the shell.
Further, the side wall of the lower end of the second chamber protrudes outwards, or the end part of the lower end of the second chamber extends outwards to form a flaring.
The beneficial effect of adopting the further scheme is that: the lateral wall of the second cavity protrudes outwards or forms a flaring, when the shell is subjected to external acting force, the shell can deform properly to buffer impact or vibration, so that the influence on an internal structure is reduced, and the shell is convenient to connect with exhaust aftertreatment equipment through a clamp.
The utility model also provides an exhaust aftertreatment assembly, include noise eliminator, tail pipe and exhaust aftertreatment equipment, exhaust aftertreatment equipment's gas outlet with the air inlet intercommunication of second cavity, the upper end of exhaust outlet duct with tail pipe fixed connection and intercommunication.
The beneficial effects are that: the silencing device has a silencing effect and can prevent rainwater or sundries from entering the exhaust aftertreatment equipment. The tail pipe is used for reducing rainwater or sundries from entering the silencing device.
And the protection net is fixedly sleeved on the outer sides of the noise eliminator and the exhaust aftertreatment equipment.
The beneficial effect of adopting the further scheme is that: noise eliminator and exhaust aftertreatment equipment's temperature is higher, if debris lean on its outer wall easy fire, if personnel contact scald easily, consequently sets up the protecting wire net, avoids debris or personnel to contact noise eliminator and exhaust aftertreatment equipment's outer wall.
The utility model also provides an agricultural machine, include exhaust aftertreatment assembly.
Drawings
FIG. 1 is a structural view of the muffler device of the present invention, wherein the exhaust outlet pipe and the exhaust mesh ring are coaxially disposed;
FIG. 2 is a view showing the structure of the muffler device according to the present invention, wherein the end of the housing has a flared opening;
FIG. 3 shows a first embodiment of the exhaust mesh ring of the present invention;
FIG. 4 is a second embodiment of the exhaust mesh ring of the present invention;
fig. 5 shows a third embodiment of the exhaust mesh ring of the present invention;
FIG. 6 is a structural diagram of the muffler device with an offset exhaust outlet pipe according to the present invention;
fig. 7 is a structural diagram of the exhaust aftertreatment assembly of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a muffler device; 101. an exhaust outlet pipe; 102. blocking plates; 103. an exhaust mesh ring; 104. a second chamber; 105. an upper cover; 106. a thermal insulation layer; 107. a sensor interface; 2. a tail pipe; 3. clamping a hoop; 4. an exhaust gas aftertreatment device; 5. and (4) protecting the net.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1-6, this embodiment provides a muffler device, including shell, exhaust outlet pipe 101 and exhaust mesh ring 103, exhaust mesh ring 103 has the blast pipe installing port that is located the middle part and centers on a plurality of meshes that the blast pipe installing port set up, exhaust mesh ring 103's outer wall with shell inner wall sealing connection, and will the inside of shell divide into first cavity and the second cavity 104 that sets up from top to bottom, second cavity 104 has the air inlet, the upper end of exhaust outlet pipe 101 is located outside the shell and open, and the lower extreme passes in proper order from top to bottom the shell, first cavity with the blast pipe installing port and with exhaust mesh ring 103 sealing connection, and exhaust outlet pipe 101 lower extreme tip is sealed, is located in the first cavity exhaust outlet pipe 101 lateral wall has a plurality of exhaust holes.
The exhausted tail gas firstly enters the second chamber 104, then enters the first chamber from the meshes of the exhaust mesh ring 103, then enters the exhaust outlet pipe 101 through the exhaust holes, and is exhausted from the upper end of the exhaust outlet pipe 101. The first and second chambers 104 may act to dampen sound.
The lower end of the exhaust outlet pipe 101 is closed and extends to one part of the second chamber, and the part of the exhaust outlet pipe without holes can contain a certain amount of sundries and rainwater entering from the upper end of the exhaust outlet pipe 101, so that the sundries and the rainwater are prevented from entering the exhaust aftertreatment equipment.
Specifically, the housing comprises a cylindrical main body with two open ends and an upper cover 105 fixed on the upper end of the cylindrical main body, the upper cover 105 is in a circular truncated cone shape, and the exhaust gas outlet pipe 101 penetrates through the upper cover 105. The first chamber is enclosed between the upper cover 105, the exhaust mesh ring 103 and the cylindrical body.
Specifically, the lower end of the exhaust outlet pipe 101 is fixedly provided with a blocking plate 102, and the end part of the exhaust outlet pipe is closed by the blocking plate 102.
Specifically, the exhaust mesh ring 103 is a horizontally disposed annular plate.
Wherein the inlet of the second chamber 104 may be located at a side wall or a bottom wall of the second chamber 104.
Alternatively, as shown in fig. 4, a portion of the exhaust mesh ring 103 near the exhaust pipe mounting opening is recessed downward. The exhaust mesh ring 103 forms a stepped hole near the exhaust pipe mounting opening.
Optionally, the exhaust mesh ring 103 is arranged to be inclined upward from the exhaust pipe mounting opening to the outer wall.
Specifically, the exhaust outlet pipe 101 is provided with the exhaust holes at a position in the first chamber and close to the exhaust mesh ring 103, so that rainwater splashed down into the exhaust outlet pipe 101 flows down along the inner and outer walls (mainly the inner wall) of the exhaust outlet pipe 101, and a small part of rainwater splashed out of the exhaust outlet pipe 101 flows along the outer wall thereof, the rainwater on the outer wall can collect at a bulge or an inclined plane close to the exhaust pipe mounting opening along the exhaust mesh ring 103, and further can flow into the exhaust outlet pipe 101 from the exhaust holes in the side wall of the exhaust outlet pipe 101, and is temporarily stored to avoid influencing exhaust aftertreatment equipment.
Specifically, as shown in fig. 3, the exhaust mesh ring 103 is only inclined at the position close to the exhaust pipe installation opening, and the position close to the outer wall is horizontal; alternatively, as shown in fig. 5, the exhaust mesh rings 103 are all inclined from the exhaust pipe mounting opening to the outer wall, i.e., form a truncated cone-shaped structure.
On the basis of the technical scheme, the axis of the exhaust mesh ring 103 is parallel to or collinear with the axis of the exhaust outlet pipe 101.
As shown in fig. 1 and 2, the axis of the exhaust mesh ring 103 is coaxially arranged with the axis of the exhaust outlet pipe 101, or as shown in fig. 6, the axis of the exhaust mesh ring 103 is eccentrically arranged with the axis of the exhaust outlet pipe 101.
On the basis of the above technical solution, the sidewall of the second chamber 104 is further provided with a sensor interface 107.
On the basis of the technical scheme, the heat insulation device further comprises a heat insulation layer 106, and the heat insulation layer 106 is fixed on the outer wall of the shell.
The insulation layer 106 serves to insulate and protect the enclosure.
On the basis of the technical scheme, as shown in fig. 1 and 6, the lower end side wall of the second chamber 104 protrudes outwards to form a ring shape with a V-shaped or other shape in cross section, or, as shown in fig. 2, the lower end of the second chamber 104 extends outwards to form a flared opening.
The side walls of the second chamber 104 bulge or flare outwardly and the housing may deform to cushion shock or vibration when subjected to an external force, to reduce the impact on the internal structure, and to facilitate connection to the exhaust aftertreatment device 4 via the clamp.
As shown in fig. 7, the present embodiment further provides an exhaust gas post-treatment assembly, which includes the muffler device 1, a tail pipe 2 and an exhaust gas post-treatment device 4, wherein an air outlet of the exhaust gas post-treatment device 4 is communicated with an air inlet of the second chamber, and an upper end of the exhaust gas outlet pipe 101 is fixedly connected and communicated with the tail pipe 2.
The muffler device 1 has a muffling function and can prevent rainwater or impurities from entering the exhaust aftertreatment equipment 4. The tail pipe 2 is used for reducing rainwater or impurities from entering the muffler device 1.
Specifically, the exhaust gas post-treatment device 4 is connected and communicated with the muffler device 1 through a clip 3.
The exhaust aftertreatment device 4 includes a DOC, DPF (or CDPF), SCR and ASC, or the exhaust aftertreatment device 4 includes a DOC, CDPF, SCR and ASC.
On the basis of the technical scheme, the exhaust gas treatment device further comprises a protective net 5, and the protective net 5 is fixedly sleeved on the outer sides of the silencing device 1 and the exhaust gas post-treatment equipment 4.
The temperature of the silencer 1 and the exhaust aftertreatment equipment 4 is high, if sundries are attached to the outer wall of the silencer, fire easily occurs, and if people contact the fire easily, the protection net 5 is arranged, so that the sundries or the people are prevented from contacting the outer wall of the silencer 1 and the exhaust aftertreatment equipment 4.
The embodiment also provides an agricultural machine comprising the exhaust aftertreatment assembly.
In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a silencing device, its characterized in that includes shell, exhaust outlet duct (101) and exhaust mesh ring (103), exhaust mesh ring (103) have the blast pipe installing port that is located the middle part and center on a plurality of meshes that the blast pipe installing port set up, exhaust mesh ring (103) the outer wall with shell inner wall sealing connection, and will the inside of shell divide into first cavity and second cavity (104) that set up from top to bottom, second cavity (104) have the air inlet, the upper end of exhaust outlet duct (101) is located the shell is outer and uncovered, and the lower extreme passes from top to bottom in proper order the shell first cavity with the blast pipe installing port and with exhaust mesh ring (103) sealing connection, just exhaust outlet duct (101) lower extreme tip seals, is located in the first cavity exhaust outlet duct (101) lateral wall has a plurality of exhaust holes.
2. A sound-damping arrangement according to claim 1, characterised in that the part of the exhaust mesh ring (103) adjacent to the exhaust pipe mounting opening is recessed downwards.
3. A sound-damping arrangement according to claim 1, characterised in that the exhaust mesh ring (103) is arranged obliquely upwards from the exhaust pipe mounting opening to the outer wall.
4. A sound-damping arrangement according to claim 1, characterised in that the axis of the ring of exhaust mesh (103) is parallel to or collinear with the axis of the exhaust outlet pipe (101).
5. A sound-damping arrangement according to claim 1, characterised in that the side wall of the second chamber (104) is also provided with a sensor interface (107).
6. A sound-damping arrangement according to claim 1, characterised in that it further comprises a heat-insulating layer (106), which heat-insulating layer (106) is fixed to the outer wall of the housing.
7. A sound-damping arrangement according to any one of claims 1 to 6, characterised in that the side wall of the lower end of the second chamber (104) projects outwardly or the end of the lower end of the second chamber (104) extends outwardly to form a flare.
8. An exhaust gas aftertreatment assembly, characterized by comprising the muffler device (1) according to any one of claims 1 to 7, a tail pipe (2) and an exhaust gas aftertreatment device (4), wherein an air outlet of the exhaust gas aftertreatment device (4) is communicated with an air inlet of the second chamber (104), and an upper end of the exhaust gas outlet pipe (101) is fixedly connected and communicated with the tail pipe (2).
9. An exhaust aftertreatment assembly according to claim 8 further comprising a protective mesh (5), the protective mesh (5) being fixedly fitted over the outer side of the muffler device (1) and the exhaust aftertreatment apparatus (4).
10. An agricultural machine comprising the exhaust aftertreatment assembly of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222148800.0U CN217926043U (en) | 2022-08-16 | 2022-08-16 | Noise eliminator, exhaust aftertreatment assembly and agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222148800.0U CN217926043U (en) | 2022-08-16 | 2022-08-16 | Noise eliminator, exhaust aftertreatment assembly and agricultural machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217926043U true CN217926043U (en) | 2022-11-29 |
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ID=84154188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222148800.0U Active CN217926043U (en) | 2022-08-16 | 2022-08-16 | Noise eliminator, exhaust aftertreatment assembly and agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217926043U (en) |
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2022
- 2022-08-16 CN CN202222148800.0U patent/CN217926043U/en active Active
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