CN218996349U - Vibration-damping and sound-absorbing structure - Google Patents
Vibration-damping and sound-absorbing structure Download PDFInfo
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- CN218996349U CN218996349U CN202222329567.6U CN202222329567U CN218996349U CN 218996349 U CN218996349 U CN 218996349U CN 202222329567 U CN202222329567 U CN 202222329567U CN 218996349 U CN218996349 U CN 218996349U
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Abstract
The utility model discloses a vibration reduction and sound absorption structure which comprises a first silencing plate, a second silencing plate, vibration reduction structures and edge sealing edges, wherein the second silencing plate which is symmetrical to the first silencing plate in parallel is arranged on the right side of the first silencing plate, a plurality of vibration reduction structures are arranged between the first silencing plate and the second silencing plate, and the edge of the first silencing plate and the edge of the second silencing plate are provided with a circle of edge sealing edges. The utility model has simple structure and reasonable design, can effectively utilize the space of the cabin, optimizes the low-frequency noise reduction capability on the premise of not changing the hull structure, can reduce the vibration of the cabin structure and builds a good cabin working environment.
Description
[ field of technology ]
The utility model relates to the technical field of vibration reduction and sound absorption structures, in particular to the technical field of vibration reduction and sound absorption structures.
[ background Art ]
In recent years, the development of the ship industry in China is rapid, the technology for manufacturing the ship is mature, and the requirements for the safety and the comfort of the ship are greatly improved. The long-time working and residing in the cabin noise easily causes people to feel dysphoria and influence the health of people, and the vibration noise greatly jeopardizes the running safety of the ship. With the continuous development of the ship industry, the problem of vibration noise is more and more emphasized, and the requirements on vibration reduction and noise reduction are continuously improved. Aiming at the problems, the company decides to develop the ship cabin noise reduction vibration reduction composite structural member, and aims at the environmental characteristics of cabin noise sources and the problems and defects of the traditional sound absorption materials, so that the space of the cabin is effectively utilized, the low-frequency noise reduction capacity is optimized on the premise of not changing the hull structure, the cabin structure vibration can be reduced, and a good cabin working environment is built.
[ utility model ]
The utility model aims to solve the problems in the prior art, and provides a vibration reduction and sound absorption structure which can effectively utilize the space of a cabin, optimize the low-frequency noise reduction capability on the premise of not changing the hull structure, reduce the vibration of the cabin structure and build a good cabin working environment.
In order to achieve the above purpose, the utility model provides a vibration reduction and sound absorption structure, which comprises a first silencing plate, a second silencing plate, a damping structure and an edge seal, wherein the second silencing plate which is symmetrical to the first silencing plate in parallel is arranged on the right side of the first silencing plate, a plurality of damping structures are arranged between the first silencing plate and the second silencing plate, and a circle of edge seal is arranged at the edges of the first silencing plate and the second silencing plate.
Preferably, the first silencer plate comprises a first micropunching plate, a first sound absorbing cotton layer, first support columns, first positioning rods, first damping springs and second micropunching plates, the second micropunching plates parallel to the first micropunching plates are arranged on the left side of the first micropunching plates, a plurality of first support columns, a plurality of first damping springs are clamped between the first micropunching plates and the second micropunching plates, the first support columns and the first damping springs are in one-to-one correspondence, the first support columns are sleeved with the first damping springs on the outer sides of the first support columns, the first positioning rods penetrating through the second micropunching plates are arranged on the right end faces of the first support columns, the first sound absorbing cotton layer is clamped between the first micropunching plates and the second micropunching plates, and the first sound absorbing cotton layer is avoided.
Preferably, the first silencing plate and the second silencing plate have the same structure, the left end face of the first positioning rod of the first silencing plate is provided with a sliding hole, and the right end face of the first positioning rod of the second silencing plate is provided with a first screw hole.
As the preference, shock-absorbing structure contains positioning screw, spring beam, granule attenuator, the second inhale the sound cotton layer, hit the pearl, arris pole, and positioning screw twists in first screw, and positioning screw right-hand member is equipped with coaxial spring beam, and the spring beam right-hand member is equipped with granule attenuator, and granule attenuator inside is equipped with the cavity, and the cavity inner wall is equipped with the cotton layer of one deck second inhale the sound, is equipped with a plurality of in the cavity and hits the pearl, is equipped with sliding connection's arris pole in the slide hole, and the arris pole links to each other with granule attenuator.
Preferably, the edge sealing main body is annular, the edge sealing inner hole is provided with a plurality of extension brackets, a circle of extension brackets are clamped between the edges of the first microperforated panel and the second microperforated panel and between the edges of the first silencer panel and the second silencer panel, a plurality of second screw holes are formed in the extension brackets, a plurality of third screw holes are formed in the edges of the first silencer panel and the second silencer panel, the plurality of third screw holes in the edges of the first silencer panel and the plurality of third screw holes in the edges of the second silencer panel are in one-to-one correspondence, and the second screw holes are coaxial with the corresponding third screw holes.
The utility model has the beneficial effects that: the utility model has simple structure and reasonable design, can effectively utilize the space of the cabin, optimizes the low-frequency noise reduction capability on the premise of not changing the hull structure, can reduce the vibration of the cabin structure and builds a good cabin working environment; the first microperforated plate and the second microperforated plate are connected and combined to form the double-layer microperforated cavity, and the sound absorption frequency bandwidth of the double-layer microperforated plate is utilized, so that the sound absorption coefficients of the first sound attenuation plate and the second sound attenuation plate are high, and the cabin noise can be effectively reduced; through the arrangement of the first sound-absorbing cotton layer, the sound can be further reduced through the micropores on the first microperforated panel and the second microperforated panel; through utilizing spring beam fixedly connected with granule attenuator between first acoustical panel, second acoustical panel, utilize the energy of the friction dissipation vibration transmission between the granule, reduce vibration intensity, can protect boats and ships operation safety and reduce the vibration in cabin, the second inhale the sound cotton layer and can absorb the noise that hits the pearl collision and produce when granule attenuator shock attenuation.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic front view of a vibration damping and sound absorbing structure of the present utility model.
[ detailed description ] of the utility model
Referring to fig. 1, the vibration damping and sound absorbing structure of the utility model comprises a first silencer board 1, a second silencer board 2, a vibration damping structure 3 and an edge sealing 4, wherein the second silencer board 2 which is symmetrical to the first silencer board 1 in parallel is arranged on the right side of the first silencer board 1, a plurality of vibration damping structures 3 are arranged between the first silencer board 1 and the second silencer board 2, and a circle of edge sealing 4 is arranged at the edges of the first silencer board 1 and the second silencer board 2.
The first muffler plate 1 comprises a first micropunching plate 11, a first sound absorbing cotton layer 12, first support posts 13, a first positioning rod 131, a first damping spring 14 and a second micropunching plate 15, the second micropunching plate 15 parallel to the first micropunching plate 11 is arranged on the left side of the first micropunching plate 11, a plurality of first support posts 13 and a plurality of first damping springs 14 are clamped between the first micropunching plate 11 and the second micropunching plate 15, the plurality of first support posts 13 and the plurality of first damping springs 14 are in one-to-one correspondence, the first damping springs 14 are sleeved on the outer sides of the first support posts 13, the first positioning rod 131 penetrating through the second micropunching plate 15 is arranged on the right end face of the first support posts 13, the first sound absorbing cotton layer 12 is clamped between the first micropunching plate 11 and the second micropunching plate 15, and the first sound absorbing cotton layer 12 avoids the first damping springs 14.
Wherein, the first muffler plate 1 and the second muffler plate 2 have the same structure, the left end face of the first positioning rod 131 of the first muffler plate 1 is provided with a sliding hole 10, and the right end face of the first positioning rod 131 of the second muffler plate 2 is provided with a first screw hole 20.
The shock-absorbing structure 3 comprises a positioning screw 31, a spring rod 32, a particle damper 33, a second sound-absorbing cotton layer 331, a collision bead 332 and a rib rod 34, wherein the positioning screw 31 is screwed in the first screw hole 20, the right end of the positioning screw 31 is provided with the coaxial spring rod 32, the right end of the spring rod 32 is provided with the particle damper 33, a cavity is formed in the particle damper 33, a layer of second sound-absorbing cotton layer 331 is arranged on the inner wall of the cavity, a plurality of collision beads 332 are arranged in the cavity, the rib rod 34 in sliding connection is arranged in the sliding hole 10, and the rib rod 34 is connected with the particle damper 33.
Wherein, banding 4 main part is the ring-type, and banding 4 hole is equipped with a plurality of and extends support 41, all presss from both sides round extension support 41 between first microperforation plate 11 and the second microperforation plate 15 edge, between first amortization plate 1 and the second amortization plate 2 edge, is equipped with a plurality of second screw 410 on the extension support 41, and first amortization plate 1, second amortization plate 2 edge are equipped with a plurality of third screw 101, a plurality of second screw 410, a plurality of third screw 101 at first amortization plate 1 edge, a plurality of third screw 101 one-to-one at second amortization plate 2 edge, second screw 410 and the third screw 101 coaxial that corresponds.
The working process of the utility model comprises the following steps:
in the working process of the vibration reduction and sound absorption structure, bolts are utilized to pass through the combined screw holes of the second screw holes 410 and the corresponding third screw holes 101 and then screwed on the cabin wall, and the vibration reduction and sound absorption structure is fixed on the cabin wall by a plurality of bolts.
The utility model has simple structure and reasonable design, can effectively utilize the space of the cabin, optimizes the low-frequency noise reduction capability on the premise of not changing the hull structure, can reduce the vibration of the cabin structure and builds a good cabin working environment; the first microperforated panel 11 and the second microperforated panel 15 are connected and combined into the double-layer microperforated cavity, and the sound absorption frequency bandwidth of the double-layer microperforated panel is utilized, so that the sound absorption coefficients of the first sound attenuation panel 1 and the second sound attenuation panel 2 are high, and the cabin noise can be effectively reduced; by providing the first sound-absorbing cotton layer 12, the sound can be further reduced by the micropores on the first microperforated panel 11 and the second microperforated panel 15; through utilizing spring beam 32 fixedly connected with particle damper 33 between first acoustical panel 1, second acoustical panel 2, utilize the energy of friction dissipation vibration transmission between the granule, reduce vibration intensity, can protect boats and ships operation safety and reduce the vibration in cabin, the noise that the collision pearl 332 collision produced can be absorbed in particle damper 33 shock attenuation to the second sound absorbing cotton layer 331.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (5)
1. The utility model provides a damping sound absorption structure which characterized in that: including first acoustical panel (1), second acoustical panel (2), shock-absorbing structure (3), banding (4), first acoustical panel (1) right side be equipped with rather than parallel symmetry's second acoustical panel (2), be equipped with a plurality of shock-absorbing structure (3) between first acoustical panel (1), second acoustical panel (2), first acoustical panel (1), second acoustical panel (2) edge are equipped with round banding (4).
2. A vibration damping and sound absorbing structure as defined in claim 1 wherein: the first sound attenuation plate (1) comprises a first micro-perforated plate (11), a first sound absorption cotton layer (12), first support columns (13), first positioning rods (131), first damping springs (14) and second micro-perforated plates (15), the second micro-perforated plates (15) parallel to the first micro-perforated plates are arranged on the left side of the first micro-perforated plates (11), a plurality of first support columns (13) and a plurality of first damping springs (14) are clamped between the first micro-perforated plates (11) and the second micro-perforated plates (15), the plurality of first support columns (13) and the plurality of first damping springs (14) are in one-to-one correspondence, the first positioning rods (131) penetrating through the second micro-perforated plates (15) are sleeved on the outer sides of the first support columns (13), the first damping springs (14) are arranged on the right end faces of the first support columns (13), the first sound absorption cotton layer (12) is clamped between the first micro-perforated plates (11) and the second micro-perforated plates (15), and the first sound absorption cotton layer (12) is avoided.
3. A vibration damping and sound absorbing structure as defined in claim 2 wherein: the structure of the first silencer plate (1) and the structure of the second silencer plate (2) are the same, a sliding hole (10) is formed in the left end face of a first positioning rod (131) of the first silencer plate (1), and a first screw hole (20) is formed in the right end face of the first positioning rod (131) of the second silencer plate (2).
4. A vibration damping and sound absorbing structure as defined in claim 1 wherein: shock-absorbing structure (3) contain positioning screw (31), spring beam (32), granule attenuator (33), the cotton layer of second sound absorption (331), hit pearl (332), arris pole (34), positioning screw (31) screw up in first screw (20), positioning screw (31) right-hand member is equipped with coaxial spring beam (32), spring beam (32) right-hand member is equipped with granule attenuator (33), granule attenuator (33) inside is equipped with the cavity, the cavity inner wall is equipped with the cotton layer of one deck second sound absorption (331), be equipped with a plurality of in the cavity and hit pearl (332), be equipped with sliding connection's arris pole (34) in slide hole (10), arris pole (34) link to each other with granule attenuator (33).
5. A vibration damping and sound absorbing structure as defined in claim 1 wherein: the banding (4) main part is cyclic annular, banding (4) hole is equipped with a plurality of extension support (41), between first microperforated panel (11) and second microperforated panel (15) edge, all press from both sides round extension support (41) between first acoustical panel (1) and second acoustical panel (2) edge, be equipped with a plurality of second screw (410) on extension support (41), first acoustical panel (1), second acoustical panel (2) edge is equipped with a plurality of third screw (101), a plurality of second screw (410), a plurality of third screw (101) at first acoustical panel (1) edge, a plurality of third screw (101) at second acoustical panel (2) edge one-to-one, second screw (410) are coaxial with corresponding third screw (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222329567.6U CN218996349U (en) | 2022-09-02 | 2022-09-02 | Vibration-damping and sound-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222329567.6U CN218996349U (en) | 2022-09-02 | 2022-09-02 | Vibration-damping and sound-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218996349U true CN218996349U (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222329567.6U Active CN218996349U (en) | 2022-09-02 | 2022-09-02 | Vibration-damping and sound-absorbing structure |
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| Country | Link |
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| CN (1) | CN218996349U (en) |
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2022
- 2022-09-02 CN CN202222329567.6U patent/CN218996349U/en active Active
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Denomination of utility model: A vibration and sound absorption structure Effective date of registration: 20230803 Granted publication date: 20230509 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Jiaxing Haiyan sub branch Pledgor: Zhejiang fulende Heavy Industry Co.,Ltd. Registration number: Y2023980050726 |