CN212079464U - Noise reduction device for explosion-proof diesel engine - Google Patents
Noise reduction device for explosion-proof diesel engine Download PDFInfo
- Publication number
- CN212079464U CN212079464U CN202020861287.8U CN202020861287U CN212079464U CN 212079464 U CN212079464 U CN 212079464U CN 202020861287 U CN202020861287 U CN 202020861287U CN 212079464 U CN212079464 U CN 212079464U
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- Prior art keywords
- diesel engine
- explosion
- noise reduction
- proof diesel
- sound
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- 229920000742 Cotton Polymers 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims abstract description 9
- 230000030279 gene silencing Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 5
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A noise reduction device for an explosion-proof diesel engine relates to the technical field of diesel engine accessories, and comprises a noise reduction shell and a bottom plate, wherein the noise reduction shell sequentially comprises an inner layer, a sound insulation layer and an outer layer from inside to outside, a cavity is arranged inside the sound insulation layer, a plurality of through holes are formed in the inner layer, sound absorption cotton is arranged at one end of the cavity far away from the inner layer, a plurality of convex blocks are arranged on the end surface of the sound insulation layer close to the outer layer, blind holes are respectively formed in the positions, corresponding to the convex blocks, on the outer layer, the convex blocks are respectively inserted into the corresponding blind holes, springs are arranged between the convex blocks and the blind holes, heat dissipation holes are respectively formed in four side walls of the noise reduction shell, breathable sound insulation cotton is fixed in the heat dissipation holes, a damping plate is arranged at the upper end of the bottom plate, a notch is arranged in the middle of the damping plate, meanwhile, the buffering and protecting function is realized on the internal structure of the diesel engine.
Description
Technical Field
The utility model relates to a diesel engine accessory technical field, concretely relates to a device of making an uproar falls for explosion-proof diesel engine.
Background
The explosion-proof diesel engine outside can all install the parcel protection casing and protect the diesel engine at present, but traditional diesel engine protection casing can only protect the parcel to the diesel engine, lacks other corresponding functions, and the diesel engine can produce very big noise at the operation in-process, and traditional volume protective housing obviously can not handle the noise that the diesel engine produced, lacks the performance that further promotes the diesel engine protection.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists, the utility model provides a device of making an uproar falls for explosion-proof diesel engine can carry out the amortization to the noise that the diesel engine in service produced and fall the noise processing, plays the buffering guard action to the diesel engine inner structure simultaneously.
The technical scheme is as follows: the noise reduction shell comprises a noise reduction shell and a bottom plate, wherein the noise reduction shell is arranged at the upper end of the bottom plate to form a cavity for an explosion-proof diesel engine, the noise reduction shell sequentially comprises an inner layer, a sound insulation layer and an outer layer from inside to outside, a cavity is arranged inside the sound insulation layer, a plurality of through holes are formed in the inner layer, the through holes are communicated with the inside of the cavity, sound absorption cotton is arranged at one end, away from the inner layer, of the cavity, a plurality of convex blocks are arranged on the end face, close to the outer layer, of the sound insulation layer, blind holes are respectively formed in the outer layer at positions corresponding to the convex blocks, the convex blocks are respectively inserted into the corresponding blind holes, springs are arranged between the convex blocks and the blind holes, radiating holes are respectively formed in four side walls of the noise reduction shell, breathable sound insulation cotton, the anti-explosion diesel engine is characterized in that a buffer piece is arranged in the notch, a plurality of mounting holes are formed in the side portion of the notch, threaded holes corresponding to the mounting holes are formed in the bottom plate, and the anti-explosion diesel engine is fixed on the bottom plate through the mounting holes in a matched mode with the threaded holes and the long screw rods.
Preferably, the bottom of shock attenuation board is formed with a plurality of amortization passageway, the amortization passageway with the bottom intercommunication of notch, and be in a plurality of the inner wall bilateral symmetry of amortization passageway is provided with a plurality of amortization piece, just the amortization piece inclines respectively and sets up towards the notch.
Preferably, the buffer member is made of rubber, and the height of the buffer member is greater than that of the damping plate.
Preferably, the side of the sound-absorbing cotton corresponding to the inner layer is provided with a plurality of bulges, and the bulges are arranged in a matrix.
Preferably, a plurality of compression resistant parts are arranged in the cavity, the compression resistant parts are I-shaped, and the compression resistant parts are made of rubber materials.
Preferably, a dust screen is arranged in the heat dissipation holes, and the sound absorption cotton is pasted on the dust screen.
Preferably, the mounting groove has been seted up to the upper surface of bottom plate, the bottom surface opening part of making an uproar shell fall be equipped with the mounting bar of mounting groove matched with joint, the mounting bar passes through the fix with screw in the mounting groove.
Preferably, the inner layer, the sound insulation layer, the outer layer, the bottom plate and the damping plate are all made of metal materials.
Preferably, the sound-absorbing cotton is melamine sound-absorbing cotton.
The utility model provides a device of making an uproar falls for explosion-proof diesel engine compares beneficial effect with prior art and is:
1. the utility model discloses a noise reduction shell adopts the inlayer, the puigging, the skin improves final syllable-dividing effect, the air column vibration in the perforation is aroused to the back entering cavity after the incident sound wave passes the inlayer, arouse the resonance when the vibration frequency of incident sound wave is unanimous with the vibration frequency of air column, thereby change acoustic energy into heat energy and kinetic energy, reach the purpose of inhaling the sound, play again when the sound wave further passes and inhale the sound cotton, the acoustic energy further weakens, because the skin has seted up the blind hole, be provided with the spring between puigging and the skin, when the sound wave passes intermediate lamella and bottom plate, the spring can cushion because the vibrations that the sound wave produced, noise abatement;
2. the utility model is provided with the damping plate, the shock absorber arranged in the notch of the damping plate reduces the vibration amplitude of the diesel engine, plays a role of buffering and protecting the internal structure of the diesel engine, and is also provided with the silencing channel at the bottom of the damping plate, thereby further reducing the noise generated during the working of the diesel engine;
3. the utility model discloses set up louvre and ventilative soundproof cotton, can will send out the heat effluvium that the diesel engine during operation produced, and soundproof cotton can further play the syllable-dividing effect, is favorable to when giving sound insulation to the diesel engine, can not influence the heat dissipation of diesel engine, improves the life of diesel engine, is equipped with the dust screen in the louvre, can prevent that the dust from getting into in the shell of making an uproar that falls.
Drawings
Fig. 1 is an overall internal structure view of the utility model.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an overall front view of the utility model.
Figure 4 is a top view of the utility model damping plate.
In the figure: 1-noise reduction shell, 2-bottom plate, 3-inner layer, 4-sound insulation layer, 5-outer layer, 6-cavity, 7-sound absorption cotton, 8-bump, 9-blind hole, 10-spring, 11-heat dissipation hole, 12-breathable sound insulation cotton, 13-damping plate, 14-notch, 15-buffer piece, 16-mounting hole, 17-threaded hole, 18-long screw rod, 19-sound absorption channel, 20-sound absorption piece, 21-bulge, 22-compression-resistant piece, 23-dust-proof net, 24-mounting groove, 25-mounting strip and 26-perforation.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention, and in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the drawings, and are only for convenience of description of the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance throughout the present disclosure, it being understood that unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and can 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 in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The first embodiment is as shown in fig. 1-3, the noise reduction device for the explosion-proof diesel engine comprises a noise reduction shell 1 and a bottom plate 2, wherein the noise reduction shell 1 is installed at the upper end of the bottom plate 2 to form a cavity for the explosion-proof diesel engine. Wherein, mounting groove 24 has been seted up to the upper surface of bottom plate 2, and the bottom surface opening part of making an uproar shell 1 is equipped with the mounting bar 25 with the 24 joint that cooperate of mounting groove, and the mounting bar 25 welds and makes an uproar shell 1 bottom surface of making an uproar, has seted up the screw on the mounting bar 25, and the screw has also been seted up to mounting groove 24, and the mounting bar 25 cooperatees through screw and fixes in mounting groove 24.
It includes inlayer 3 from inside to outside in proper order to fall shell 1 of making an uproar, puigging 4 and skin 5, puigging 4 inside is equipped with cavity 6, a plurality of perforation 26 have been seted up on the inlayer 3, perforation 26 is linked together with 6 insides of cavity, the one end setting that inlayer 3 was kept away from to cavity 6 inhales sound cotton 7, it inhales the sound cotton 7 for the melamine to inhale sound, inhale sound cotton 7 promptly and adopt the processing of melamine foam to form, unique sound of inhaling has, fire-retardant, high temperature resistant, comprehensive properties such as matter light, inhale sound cotton 7 and bond in cavity 6 through glue, it is provided with a plurality of archs 21 to inhale that one side that sound cotton 7 corresponds inlayer 3, protruding 21 sets up with inhaling the cotton 7 integrated into one piece of sound, a plurality of archs.
The terminal surface that puigging 4 is close to skin 5 is provided with a plurality of lugs 8, and lug 8 sets up with puigging 4 integrated into one piece, corresponds each lug 8 punishment on skin 5 and has seted up blind hole 9 respectively, and lug 8 inserts respectively in the blind hole 9 that corresponds, and sets up spring 10 between lug 8 and the blind hole 9. Because the outer blind hole 9 has been seted up to the skin, be provided with spring 10 between puigging 4 and the skin 5, when the sound wave passed puigging 4 and skin 5, spring 10 can cushion because the vibrations that the sound wave produced, noise abatement.
The utility model discloses a noise reduction shell adopts inlayer 3, puigging 4, skin 5 to improve final syllable-dividing effect, enters into cavity 6 after the incident sound wave passes inlayer 3 and arouses the air column vibration in the perforation 26, arouses resonance when the vibration frequency of incident sound wave is unanimous with the vibration frequency of air column, thereby converts acoustic energy into heat energy and kinetic energy, reaches the purpose of inhaling the sound; when the sound wave further passes through the sound absorption cotton 7, the sound absorption is performed again, and the sound energy is further weakened.
The louvre 11 has all been seted up to four lateral walls of the shell of making an uproar 1 of falling, and louvre 11 internal fixation has ventilative soundproof cotton 12, sets up louvre 11 and ventilative soundproof cotton 12, can be with sending out the heat effluvium that the diesel engine during operation produced, and soundproof cotton can further play the sound insulation effect, is favorable to when giving sound insulation to the diesel engine, can not influence the heat dissipation of diesel engine, improves the life of diesel engine.
As shown in fig. 4, the upper end of the bottom plate 2 is provided with a damping plate 13, the damping plate 13 is welded at the upper end of the bottom plate 2, a notch 14 is formed in the middle of the damping plate 13, a buffering member 15 is arranged in the notch 14, the buffering member 15 is made of rubber, the buffering member 15 is bonded on the inner bottom surface of the notch 14 through glue, and the height of the buffering member 15 is greater than that of the damping plate 13.
A plurality of mounting holes 16 are formed in the side portion of the notch 14, threaded holes 17 corresponding to the mounting holes 16 are formed in the bottom plate 2, and the explosion-proof diesel engine is fixed on the bottom plate 2 through the mounting holes 16, the threaded holes 17 and the long screws 18 in a matched mode.
In this embodiment, the inner layer 3, the sound insulation layer 4, the outer layer 5, the bottom plate 2 and the shock absorption plate 13 are made of metal materials, and the inner layer 3, the sound insulation layer 4 and the outer layer 5 are fixedly connected by welding.
Set up the damper panel 13, bolster 15 in the setting of damper panel 13 notch 14, the diesel engine produces vibrations when using, because bolster 15 is extrudeed stably, then the diesel engine itself can not produce when vibrations and rock, and the diesel engine can effectually offset the influence that partly vibrations brought, and then reduced the noise volume and the decibel that the diesel engine direct mount produced on bottom plate 2, can reduce the vibration range of diesel engine moreover, play the buffering guard action to the diesel engine inner structure.
In the second embodiment, on the basis of the above embodiments, the plurality of compression-resistant pieces 22 are arranged in the cavity 6, the compression-resistant pieces 22 are in an i shape, the compression-resistant pieces 22 are made of rubber, the compression-resistant pieces 22 are bonded in the cavity 6 through glue, and the compression-resistant pieces 22 are arranged, so that the compression-resistant capability of the noise reduction shell can be further improved.
In the third embodiment, on the basis of the above embodiments, a plurality of silencing passages 19 are formed at the bottom of the damping plate 13, the silencing passages 19 are communicated with the bottom of the notch 14, a plurality of silencing plates 20 are symmetrically arranged on two sides of the inner wall of the plurality of silencing passages 19, the silencing plates 20 and the silencing passages 19 are integrally formed, and the silencing plates 20 are respectively arranged towards the notch 14 in an inclined manner. Noise generated by the diesel engine during operation can enter the silencing passage 19 through the notch 14, and the silencing sheet 20 arranged in the silencing passage 19 can effectively consume the energy of sound waves in air flow, so that the noise reduction efficiency is further improved.
In the fourth embodiment, in addition to the above embodiments, a dust screen 23 is provided in the heat dissipation hole 11, and the sound absorption cotton 7 is adhered to the dust screen 23. The dust screen 23 adopts a metal mesh, and the dust screen 23 is directly welded in the radiating holes 11, so that dust can be prevented from entering the noise reduction shell 1.
To sum up, the utility model provides a device of making an uproar falls for explosion-proof diesel engine can carry out the amortization to the noise that the diesel engine in service produced and fall the noise processing, plays the buffering guard action to the diesel engine inner structure simultaneously.
While the present invention has been particularly shown and described with reference to the preferred embodiments thereof, and many methods and approaches to the practice thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (9)
1. A device of making an uproar falls for explosion-proof diesel engine, including falling shell (1) and bottom plate (2) of making an uproar, it installs to fall shell (1) of making an uproar the upper end of bottom plate (2) forms the cavity that is used for explosion-proof diesel engine, its characterized in that, it includes inlayer (3), puigging (4) and skin (5) from inside to outside in proper order to fall shell (1) of making an uproar, puigging (4) inside is equipped with cavity (6), a plurality of perforation (26) have been seted up on inlayer (3), perforation (26) with cavity (6) inside is linked together, cavity (6) are kept away from the one end of inlayer (3) sets up inhales sound cotton (7), puigging (4) are close to the terminal surface of skin (5) is provided with a plurality of lugs (8), correspond each on skin (5) lug (8) punishment has do not seted up blind hole (9), lug (8) insert respectively, and the lug (8) with set up spring (10) between blind hole (9), heat dissipation hole (11) have all been seted up to four lateral walls of the shell of making an uproar (1) of falling, heat dissipation hole (11) internal fixation has ventilative soundproof cotton (12), the upper end of bottom plate (2) is equipped with shock attenuation board (13), the middle part of shock attenuation board (13) is provided with notch (14), be provided with bolster (15) in notch (14) a plurality of mounting hole (16) have been seted up on notch (14) lateral part, set up on bottom plate (2) with screw hole (17) corresponding mounting hole (16), the explosion-proof diesel engine passes through mounting hole (16), screw hole (17) and long screw rod (18) cooperate and fix on bottom plate (2).
2. The noise reduction device for the explosion-proof diesel engine according to claim 1, characterized in that a plurality of silencing passages (19) are formed at the bottom of the damping plate (13), the silencing passages (19) are communicated with the bottom of the notch (14), a plurality of silencing plates (20) are symmetrically arranged at two sides of the inner wall of the plurality of silencing passages (19), and the silencing plates (20) are respectively arranged towards the notch (14) in an inclined manner.
3. The noise reduction device for the explosion-proof diesel engine according to claim 2, characterized in that the buffer member (15) is made of rubber, and the height of the buffer member (15) is greater than that of the damping plate (13).
4. The noise reduction device for the explosion-proof diesel engine according to claim 1, characterized in that the side of the sound-absorbing cotton (7) corresponding to the inner layer (3) is provided with a plurality of protrusions (21), and the plurality of protrusions (21) are arranged in a matrix.
5. The noise reducer for explosion-proof diesel engines as claimed in claim 1, characterized in that a plurality of compression-resistant pieces (22) are arranged inside the cavity (6), the compression-resistant pieces (22) are in the shape of an I, and the compression-resistant pieces (22) are made of rubber.
6. The noise reduction device for the explosion-proof diesel engine according to claim 1, wherein a dust screen (23) is arranged in the heat dissipation hole (11), and the sound absorption cotton (7) is adhered to the dust screen (23).
7. The noise reduction device for the explosion-proof diesel engine according to claim 1, characterized in that an installation groove (24) is formed in the upper surface of the bottom plate (2), an installation bar (25) matched and clamped with the installation groove (24) is arranged at an opening of the bottom surface of the noise reduction shell (1), and the installation bar (25) is fixed in the installation groove (24) through screws.
8. The noise reduction device for the explosion-proof diesel engine is characterized in that the inner layer (3), the sound insulation layer (4), the outer layer (5), the bottom plate (2) and the shock absorption plate (13) are made of metal materials.
9. The noise reduction device for the explosion-proof diesel engine according to claim 1, characterized in that the sound-absorbing cotton (7) is melamine sound-absorbing cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020861287.8U CN212079464U (en) | 2020-05-21 | 2020-05-21 | Noise reduction device for explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020861287.8U CN212079464U (en) | 2020-05-21 | 2020-05-21 | Noise reduction device for explosion-proof diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212079464U true CN212079464U (en) | 2020-12-04 |
Family
ID=73568644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020861287.8U Expired - Fee Related CN212079464U (en) | 2020-05-21 | 2020-05-21 | Noise reduction device for explosion-proof diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212079464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475464A (en) * | 2022-03-08 | 2022-05-13 | 广州市樱杰汽车零部件有限公司 | Sound cotton structure is inhaled to car cover |
-
2020
- 2020-05-21 CN CN202020861287.8U patent/CN212079464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475464A (en) * | 2022-03-08 | 2022-05-13 | 广州市樱杰汽车零部件有限公司 | Sound cotton structure is inhaled to car cover |
| CN114475464B (en) * | 2022-03-08 | 2024-05-03 | 广州市樱杰汽车零部件有限公司 | Sound-absorbing cotton structure of automobile cover |
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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 |
Granted publication date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |