CN214887379U - Engine noise attenuation device - Google Patents
Engine noise attenuation device Download PDFInfo
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- CN214887379U CN214887379U CN202121399312.6U CN202121399312U CN214887379U CN 214887379 U CN214887379 U CN 214887379U CN 202121399312 U CN202121399312 U CN 202121399312U CN 214887379 U CN214887379 U CN 214887379U
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- engine
- muffler
- extension
- sound
- main engine
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- 230000030279 gene silencing Effects 0.000 claims abstract description 65
- 230000009467 reduction Effects 0.000 claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims abstract description 16
- 230000006641 stabilisation Effects 0.000 claims abstract description 6
- 238000011105 stabilization Methods 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 claims description 30
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 230000003584 silencer Effects 0.000 abstract description 6
- 230000001603 reducing effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
本实用新型提供了发动机噪音衰减装置。该发动机噪音衰减装置包括主发动机容置部、承载部、左消音组件、右消音组件、第一消音延伸部、第一消音稳定部、第二消音延伸部和第二消音稳定部，承载部固定连接在主发动机容置部下侧，承载部外侧设置有抵紧柱，抵紧柱与承载部滑动连接，且抵紧柱一端伸入承载部内，主发动机容置部用于容置现有技术中的发动机，以对发动机起到减噪的作用，抵紧柱对主发动机容置部内的发动机进行抵紧动作，减少发动机的振动，进而起到减噪的目的，左消音组件和右消音组件相互配合，能够提升主发动机容置部的减噪效果，第一消音隔片和第二消音隔片针对容置在第一消音延伸部和第二消音延伸部内的发动机部分进行减噪。
The utility model provides an engine noise attenuation device. The engine noise attenuation device includes a main engine accommodating part, a bearing part, a left muffler assembly, a right muffler assembly, a first muffler extension part, a first muffler stabilization part, a second muffler extension part and a second muffler stabilization part, and the bearing part is fixed Connected to the lower side of the main engine accommodating part, the outer side of the bearing part is provided with an abutting column, the abutting column is slidably connected with the bearing part, and one end of the abutting column extends into the bearing part, and the main engine accommodating part is used for accommodating the prior art The engine is used to reduce the noise of the engine, and the abutting column presses the engine in the main engine housing to reduce the vibration of the engine, thereby reducing the noise. The left and right silencer components are mutually In cooperation, the noise reduction effect of the main engine accommodating part can be improved, and the first and second silencing spacers can reduce noise for the engine part accommodated in the first muffling extension part and the second muffling extension part.
Description
Technical Field
The utility model relates to a technical field of engine especially relates to engine noise attenuation device.
Background
With the development of global economy and the development of the automobile industry more rapidly, automobiles are increasingly popularized and grown as a main vehicle, and thus the environmental pollution caused by automobile noise is also increasingly serious. In the automobile noise, the noise generated by the engine accounts for a large part, and the engine generates a large sound when working, and the sound intensity and the sound frequency of the engine change irregularly. The strong noise affects the rest and work of people, and the long-term noise environment can weaken the hearing. Therefore, higher demands are also made on the noise of the automobile engine.
The prior art engines are generally directly arranged in the equipment needing the engines, and therefore generate larger noise.
It is therefore highly desirable to redesign a new engine noise attenuation device to address the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an engine noise attenuating device to solve the technical problem who provides among the above-mentioned background art.
The utility model provides an engine noise attenuation device, which comprises a main engine containing part, a bearing part, a left silencing component, a right silencing component, a first silencing extension part, a first silencing stabilization part, a second silencing extension part and a second silencing stabilization part, wherein the bearing part is fixedly connected to the lower side of the main engine containing part, the outer side of the bearing part is provided with a tightening column which is connected with the bearing part in a sliding way, one end of the tightening column extends into the bearing part, the left silencing component is arranged on one side wall of the main engine containing part, the right silencing component is arranged on the other side wall of the main engine containing part, the first silencing extension part is fixedly connected with the side wall of the main engine containing part, a plurality of first silencing partition pieces are arranged on the outer side of the first silencing extension part, and the first silencing stabilization part is fixedly connected with one end of the first silencing extension part, which is far away from the main engine containing part, second amortization extension and main engine holding portion lower extreme fixed connection, and the second amortization extension outside is provided with a plurality of second amortization septa, and second amortization stabilizing part fixed connection is in the one end that main engine holding portion was kept away from to the second amortization extension.
Optionally, the main engine receptacle comprises a main engine left receptacle and a main engine right receptacle, the main engine left receptacle being detachably connected to the main engine right receptacle.
Optionally, a plurality of first control holes for controlling the engine accommodated in the first silencing extension portion are fixedly connected to the outer side of the first silencing extension portion, and a plurality of second control holes for controlling the engine accommodated in the second silencing extension portion are fixedly connected to the outer side of the second silencing extension portion.
Optionally, a plurality of first amortization septa are arranged at equidistant intervals outside first amortization extension portion, and a plurality of second amortization septa are arranged at equidistant intervals outside second amortization extension portion.
Optionally, a first silencer for improving the noise reduction capability of the first silencing extension portion is fixedly connected to the outer side of the first silencing extension portion, and a second silencer for improving the noise reduction capability of the second silencing extension portion is fixedly connected to the outer side of the second silencing extension portion.
Optionally, the first muffler and the second muffler are both resistive mufflers.
Optionally, the left silencing assembly includes a sound-insulating vibration-damping cover and a first noise collecting portion, the sound-insulating vibration-damping cover is fixedly connected to a side wall of the main engine accommodating portion, the first noise collecting portion is fixedly connected to a side of the sound-insulating vibration-damping cover away from the main engine accommodating portion, and the first noise collecting portion is in a horn-shaped structure.
Optionally, the sound insulation and vibration reduction cover is made of aluminum foil.
Optionally, a vibration detection sensor for detecting the vibration frequency of the sound-proof vibration reduction cover is fixedly connected to the outer side of the sound-proof vibration reduction cover.
Optionally, the right muffler assembly includes a damping partition fixedly connected to a side wall of the main engine receiving portion, a stabilizer plate fixedly connected to the damping partition, and a second noise collecting portion fixedly connected to a middle portion of the damping partition, and the stabilizer plate is just abutted to the second noise collecting portion.
The utility model has the advantages as follows:
this engine noise attenuating device includes main engine holding portion, the supporting part, left side amortization subassembly, right side amortization subassembly, first amortization extension, first amortization stabilizing part, second amortization extension and second amortization stabilizing part, supporting part fixed connection is in main engine holding portion downside, the supporting part outside is provided with supports tight post, support tight post and supporting part sliding connection, and support tight post one end and stretch into in the supporting part, wherein, main engine holding portion is arranged in holding the engine among the prior art, in order to play the effect of noise reduction to the engine, simultaneously, support tight post and carry out the action of supporting tightly to the engine in the main engine holding portion, thereby reduce the vibration of engine, and then play the purpose of noise reduction, furtherly, left side amortization subassembly and right amortization subassembly mutually support, can promote the noise reduction effect of main engine holding portion, and first amortization spacer and second amortization spacer are to the engine portion of holding in first amortization extension and second amortization extension Go the noise reduction to multiple structure makes the utility model discloses have good noise reduction effect, reduced the noise that the engine produced at the during operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an engine noise attenuation apparatus according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the engine noise attenuation apparatus provided by the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the engine noise attenuation apparatus provided by the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an engine noise attenuation device according to the present invention; fig. 2 is a schematic structural diagram of an embodiment of the engine noise attenuation apparatus provided by the present invention; fig. 3 is a schematic structural diagram of another embodiment of the engine noise attenuation apparatus provided by the present invention.
The utility model discloses an engine noise attenuating device includes main engine holding portion 100, supporting part 200, left amortization subassembly, right amortization subassembly, first amortization extension 500, first amortization steady part 600, second amortization extension 700 and second amortization steady part 800.
The bearing part 200 is fixedly connected to the lower side of the main engine accommodating part 100, the outer side of the bearing part 200 is provided with a support column 210, the support column 210 is connected with the bearing part 200 in a sliding way, one end of the abutting column 210 extends into the bearing part 200, the left silencing assembly is arranged on one side wall of the main engine accommodating part 100, the right silencing assembly is arranged on the other side wall of the main engine accommodating part 100, the first silencing extension part 500 is fixedly connected with the side wall of the main engine accommodating part 100, a plurality of first silencing partition sheets 510 are arranged outside the first silencing extension part 500, the first silencing stabilizing part 600 is fixedly connected with one end of the first silencing extension part 500 far away from the main engine accommodating part 100, the second silencing extension part 700 is fixedly connected with the lower end of the main engine accommodating part 100, and a plurality of second silencing spacers 710 are disposed outside the second silencing extension 700, and the second silencing stabilizer 800 is fixedly connected to an end of the second silencing extension 700 away from the main engine accommodating portion 100.
Wherein, the main engine receiving portion 100 is a hollow structure, the main engine receiving portion 100 is mainly used for receiving an engine requiring noise reduction from the outside, the bearing portion 200 plays a role of fixing and supporting the main engine receiving portion 100, and meanwhile, the left and right noise reduction assemblies can enhance the sound insulation effect of the main engine receiving portion 100, thereby enhancing the noise reduction effect of the main engine receiving portion 100 on the engine, further, the first and second noise reduction extension portions 500 and 700 are communicated with the main engine receiving portion 100, and the first and second noise reduction extension portions 500 and 700 are used for receiving the structures extending from the engine main body, and a certain angle is formed between the first and second noise reduction extension portions 500 and 700 to receive different components of the engine, the first noise reduction stabilizing portion 600 is mainly used for improving the stability and balance between the first noise reduction extension portion 500 and the main engine receiving portion 100, the second silencing stabilizer 800 is mainly used to improve stability and balance between the second silencing extension 700 and the main engine accommodating portion 100.
In the present embodiment, the main engine receiving portion 100 includes a main engine left receiving portion 110 and a main engine right receiving portion 120, and the main engine left receiving portion 110 is detachably connected to the main engine right receiving portion 120.
Wherein, the main engine left containing part 110 and the main engine right containing part 120 which are detachably connected can be conveniently detached, so that a user can conveniently put or remove an engine which needs noise reduction from the outside into the main engine containing part 100, and the convenience degree of the installation of the engine is improved,
in this embodiment, a plurality of first control holes 501 for controlling the engine housed in first silencing extension 500 are fixedly connected to the outside of first silencing extension 500, and a plurality of second control holes 701 for controlling the engine housed in second silencing extension 700 are fixedly connected to the outside of second silencing extension 700.
The number of the first control holes 501 is two, the two first control holes 501 are symmetrically arranged, and meanwhile, the first control holes 501 are communicated with the first silencing extension part 500, so that the engine in the first silencing extension part 500 can be simply operated through the first control holes 501, and certainly, the first control holes 501 are communicated with the external environment, so that a certain heat dissipation effect can be achieved on the engine structure accommodated in the first silencing extension part 500;
meanwhile, the number of the second control holes 701 is two, and the two second control holes 701 are symmetrically arranged, and meanwhile, the second control holes 701 are communicated with the second silencing extension part 700, so that the engine in the second silencing extension part 700 can be simply operated through the second control holes 701, and certainly, the second control holes 701 are communicated with the external environment, so that a certain heat dissipation effect can be achieved on the engine structure accommodated in the second silencing extension part 700.
In the present embodiment, a plurality of first silencing spacers 510 are arranged at equal intervals outside first silencing extension 500, and a plurality of second silencing spacers 710 are arranged at equal intervals outside second silencing extension 700.
Wherein, the first amortization spacer 510 of equidistant arranging can carry out the noise of certain degree to the noise of the engine that is spread by first amortization extension 500 inside, and then can improve the noise reduction effect of first amortization spacer 510 to first amortization extension 500, of course, the second amortization spacer 710 of equidistant arranging can carry out the noise absorption of certain degree to the noise of the engine that is spread by second amortization extension 700 inside, and then can improve the noise reduction effect of second amortization spacer 710 to second amortization extension 700.
In this embodiment, a first silencer 502 for improving the noise reduction capability of the first silencing extension 500 is fixedly connected to the outside of the first silencing extension 500, and a second silencer 702 for improving the noise reduction capability of the second silencing extension 700 is fixedly connected to the outside of the second silencing extension 700.
Wherein, first muffler 502 stretches out first amortization extension 500, and first muffler 502 can carry out noise reduction with the noise that the engine produced in first amortization extension 500, and simultaneously, second muffler 702 stretches out second amortization extension 700, and second muffler 702 can carry out noise reduction with the noise that the engine produced in second amortization extension 700.
In this embodiment, the first muffler 502 and the second muffler 702 are both resistive mufflers.
The resistive muffler mainly utilizes porous sound absorption materials to reduce noise. The sound-absorbing material is fixed on the inner wall of the airflow channel or arranged in a pipeline according to a certain mode, and then the resistance silencer is formed. When sound waves enter the resistive muffler, a part of sound energy is rubbed in the pores of the porous material and is converted into heat energy to be dissipated, so that the sound waves passing through the muffler are weakened, and further, the resistive muffler can improve the noise absorption effect of the first muffler 502 and the second muffler 702.
In this embodiment, the left sound damping assembly includes a sound-insulating vibration-damping cover 310 and a first noise-collecting portion 320, the sound-insulating vibration-damping cover 310 is fixedly connected to a sidewall of the main engine accommodating portion 100, the first noise-collecting portion 320 is fixedly connected to a side of the sound-insulating vibration-damping cover 310 away from the main engine accommodating portion 100, and the first noise-collecting portion 320 has a trumpet-shaped structure.
The soundproof vibration damping cover 310 can reduce the vibration of the main engine housing part 100, and can block the noise generated by the engine in the main engine housing part 100, and the first noise collecting part 320 collects the noise generated by the engine in the main engine housing part 100 and further reduces the noise.
In the present embodiment, the sound-insulating and vibration-damping cover 310 is made of aluminum foil.
The aluminum foil has a good noise insulation effect, so that the sound insulation and vibration reduction cover 310 can absorb noise generated by the engine in the main engine accommodating part 100.
In the present embodiment, a vibration detection sensor 311 for detecting the vibration frequency of the soundproof vibration damping cover 310 is fixedly connected to the outside of the soundproof vibration damping cover 310.
The vibration detection sensor 311 can detect the vibration frequency of the soundproof vibration damping cover 310 in real time, so that a customer can know the working state of the engine in the main engine accommodating part 100 in time.
In the present embodiment, the right muffler assembly includes a damper bulkhead 410, a stabilizer plate 420, and a second noise collection portion 430, the damper bulkhead 410 is fixedly connected to the side wall of the main engine accommodating portion 100, the stabilizer plate 420 is fixedly connected to the damper bulkhead 410, the second noise collection portion 430 is fixedly connected to the middle of the damper bulkhead 410, and the stabilizer plate 420 is just abutted against the second noise collection portion 430.
The damping partition plate 410 mainly plays a role in damping and insulating sound for the main engine accommodating portion 100, meanwhile, the stabilizing plate 420 can strengthen the damping effect of the damping partition plate 410, the stabilizing plate 420 also plays a role in fixing and protecting the second noise collecting portion 430, and the second noise collecting portion 430 plays a role in collecting noise generated by the engine in the main engine accommodating portion 100, so that the noise reducing effect is achieved.
The engine noise attenuation device comprises a main engine accommodating part 100, a bearing part 200, a left silencing assembly, a right silencing assembly, a first silencing extension part 500, a first silencing stabilizing part 600, a second silencing extension part 700 and a second silencing stabilizing part 800, wherein the bearing part 200 is fixedly connected to the lower side of the main engine accommodating part 100, a resisting column 210 is arranged on the outer side of the bearing part 200, the resisting column 210 is in sliding connection with the bearing part 200, and one end of the resisting column 210 extends into the bearing part 200, wherein the main engine accommodating part 100 is used for accommodating an engine in the prior art to play a role of noise reduction on the engine, meanwhile, the resisting column 210 carries out resisting action on the engine in the main engine accommodating part 100, so that the vibration of the engine is reduced, and the purpose of noise reduction is achieved, further, the left silencing assembly and the right silencing assembly are matched with each other, so that the noise reduction effect of the main engine accommodating part 100 can be improved, and, first amortization spacer 510 and second amortization spacer 710 carry out the noise reduction to the engine part of holding in first amortization extension 500 and second amortization extension 700 to multiple structure makes the utility model discloses have good noise reduction effect, reduced the noise that the engine produced at the during operation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121399312.6U CN214887379U (en) | 2021-06-23 | 2021-06-23 | Engine noise attenuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121399312.6U CN214887379U (en) | 2021-06-23 | 2021-06-23 | Engine noise attenuation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887379U true CN214887379U (en) | 2021-11-26 |
Family
ID=78929951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121399312.6U Expired - Fee Related CN214887379U (en) | 2021-06-23 | 2021-06-23 | Engine noise attenuation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887379U (en) |
-
2021
- 2021-06-23 CN CN202121399312.6U patent/CN214887379U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211126 |