CN212106748U - Damping vibration absorber for vibration and noise reduction - Google Patents
Damping vibration absorber for vibration and noise reduction Download PDFInfo
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- CN212106748U CN212106748U CN202020418778.5U CN202020418778U CN212106748U CN 212106748 U CN212106748 U CN 212106748U CN 202020418778 U CN202020418778 U CN 202020418778U CN 212106748 U CN212106748 U CN 212106748U
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Abstract
The utility model provides a damping vibration absorber for vibration and noise reduction, which comprises a restraint body and a filling material arranged in the restraint body, wherein the filling material consists of a vibration reduction layer and a damping layer; still include the connecting piece that first end was fixed to on the substrate, the spring portion has on the body of connecting piece, the second end embedding of connecting piece in the damping layer, the second is served and still is provided with transverse vibration conduction board and longitudinal vibration conduction board.
Description
Technical Field
The utility model relates to a technical field of making an uproar falls in the damping, especially relates to a damping is fallen and use damping bump leveller.
Background
With the development of modern industry, manufacturing industry and transportation industry, vibration and noise phenomena generated by machine operation are visible everywhere, airplanes, automobiles, ships, machine tools, various power devices and the like can generate vibration and generate noise when in work, harm brought to human production life is increasingly prominent, the vibration and the noise not only pollute the environment and influence physical and mental health of people, but also influence normal work of instruments and meters, accelerate fatigue damage of structures, shorten the service life of the machines and the like, and therefore control of the vibration and the noise in the mechanical structures is more and more important. It is generally believed that increasing structural damping has an important effect on the suppression of structural vibrations and structural acoustic conduction.
In practical engineering application, it is common practice to attach a polymer damping material to a load-bearing structure, i.e., a vibrating base material, and form a damping composite structure together with the load-bearing structure. The common damping composite structure comprises a free damping structure and a constrained damping structure. A layer of damping material with a large loss modulus is directly added on the outer surface of the vibration structure to form a free damping structure, and a constraint layer (usually a steel plate or an aluminum plate) is added outside the viscoelastic damping layer to form a constraint damping structure. The free damping structure is simple and easy to operate, but the damping effect is poor, and the damping layer has the risk of easy falling; although the effect of the restraint damping structure is obvious, the structure is complex, and the construction difficulty is high. In some very thick vibrating structures, uneven or dirty substrate surfaces, the conventional free damping or constrained damping is poor in effect or difficult to install, the damping performance of the material is not fully exerted, and the vibration and noise reduction effect cannot reach the expected effect.
In addition, adding vibration absorbers to the surface of the vibrating structure is also one of the effective measures to control the vibration of the structure. A vibration absorber refers to an apparatus that absorbs vibration energy of a structure using a resonance system to reduce the vibration of the structure. The vibration absorber may be considered a substructure of the primary vibration system that dampens structural vibrations of the primary system. The vibration absorbers can be classified into undamped vibration absorbers and damped vibration absorbers according to whether the vibration absorbers are damped, wherein the vibration absorbers are narrower in vibration absorption frequency and suitable for a main vibration system with basically constant vibration excitation frequency, and the damped vibration absorbers are wider in frequency band, so that the frequency selectivity of the damping effect is effectively improved.
In summary, those skilled in the art are dedicated to develop a damping vibration absorber for vibration and noise reduction, which not only has the characteristics of excellent damping performance, easy processing, simple installation, etc., but also can further improve the vibration and noise reduction effect.
Disclosure of Invention
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a damping bump leveller for making an uproar falls in damping is provided, further improves the damping noise reduction effect.
In order to achieve the above object, the utility model provides a damping vibration absorber for vibration and noise reduction, which comprises a restraint body and a filling material arranged in the restraint body, wherein the filling material consists of a vibration reduction layer and a damping layer; still include the connecting piece that first end was fixed to the substrate, have the spring portion on the body of connecting piece, during the second end embedding damping layer of connecting piece, still be provided with a transverse vibration conduction board and two longitudinal vibration conduction boards on the second end.
Further, the transverse vibration conduction plate and the longitudinal vibration conduction plate form an H shape or an I shape.
Further, the lateral vibration conduction plate and the longitudinal vibration conduction plate are rigid metal plates.
Further, the constraining body is made of steel or aluminum alloy.
Further, the damping layer material is selected from one or more of epoxy resin, vinyl resin, acrylic resin, polyurethane, nitrile rubber, butyl rubber, polysulfide rubber and SBS modified asphalt.
Further, the material of the damping layer is selected from one or more of polyethylene foam, polyvinyl chloride foam, polystyrene foam, polyurethane foam and phenolic foam.
The utility model discloses a damping bump leveller for making an uproar falls in damping is when using, directly with adapting unit fixed mounting to the substrate, change the rigidity and the amount of deflection of substrate through body and adapting unit, and pass through adapting unit and tie point with the vibration of substrate and noise energy and introduce the filling material, the spring through the connecting piece body consumes partial vibration simultaneously, and conduct the vibration through transverse vibration deflector and longitudinal vibration conduction board and consume for damping material fully, thereby further reduced the vibration, the noise has been reduced.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention, in which a transverse vibration conduction plate and a longitudinal vibration conduction plate are formed in an H-shape.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.
As shown in fig. 1, a restraint body 2 connected to a base material 1 and a filling material disposed in the restraint body 2 according to an embodiment of the present invention, the filling material is composed of a damping layer 3 and a damping layer 4; the damping layer is characterized by further comprising a connecting piece 5 with a first end fixed to the base material, a spring portion 6 is arranged on the body of the connecting piece, the second end of the connecting piece 5 is embedded into the damping layer 4, and a transverse vibration conduction plate 8 and two longitudinal vibration conduction plates 7 are further arranged on the second end. In the present embodiment, one lateral vibration conduction plate 8 and two longitudinal vibration conduction plates 7 constitute an H-shape. In another embodiment, two transverse vibration conduction plates 8 and one longitudinal vibration conduction plate 7 form an i-shape.
In the embodiment of fig. 1, the constraining body is made of steel or aluminum alloy. The transverse vibration conduction plate and the longitudinal vibration conduction plate are rigid metal plates. The damping layer is made of one or more materials selected from epoxy resin, vinyl resin, acrylic resin, polyurethane, nitrile rubber, butyl rubber, polysulfide rubber and SBS modified asphalt. The damping layer material is selected from one or more of polyethylene foam, polyvinyl chloride foam, polystyrene foam, polyurethane foam and phenolic foam.
When in use, the connecting piece 5 is directly and fixedly installed on the base material 1, the vibration and noise energy of the base material are introduced into the filling material through the connecting part and the connecting point through the connecting piece 5, part of vibration is consumed through the spring 6 of the body of the connecting piece 5, and the vibration is sufficiently transmitted to the damping material for consumption through the transverse vibration guide plate 8 and the longitudinal vibration transmission plate 7, so that the vibration is further reduced, and the noise is reduced.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made according to the purpose of the invention, and all changes, modifications, substitutions, combinations or simplifications made according to the technical solutions of the present invention shall be equivalent substitution ways, so long as the invention is consistent with the purpose of the present invention, and all the changes belong to the protection scope of the present invention.
Claims (6)
1. The damping vibration absorber for vibration and noise reduction is characterized by comprising a restraint body and a filling material arranged in the restraint body, wherein the filling material consists of a vibration reduction layer and a damping layer; still include the connecting piece that first end was fixed to on the substrate, the spring portion has on the body of connecting piece, the second end embedding of connecting piece in the damping layer, the second is served and still is provided with transverse vibration conduction board and longitudinal vibration conduction board.
2. The vibration and noise reducing and damped vibration absorber of claim 1 wherein said transverse vibration conducting plate and said longitudinal vibration conducting plate are formed in an H-shape or an i-shape.
3. The vibration and noise reducing and damped vibration absorber of claim 2 wherein said transverse vibration conducting plate and said longitudinal vibration conducting plate are rigid metal plates.
4. The vibration/noise reduction damped vibration absorber of claim 1 wherein said constraining body is made of steel or aluminum alloy.
5. The vibration and noise reducing and damped vibration absorber of claim 1 wherein said damping layer material is selected from one or more of the group consisting of epoxy, vinyl, acrylic, polyurethane, nitrile rubber, butyl rubber, polysulfide rubber and SBS modified asphalt.
6. The vibration and noise reducing and damped vibration absorber of claim 1 wherein said vibration damping layer material is selected from one or more of polyethylene foam, polyvinyl chloride foam, polystyrene foam, polyurethane foam and phenolic foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020418778.5U CN212106748U (en) | 2020-03-27 | 2020-03-27 | Damping vibration absorber for vibration and noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020418778.5U CN212106748U (en) | 2020-03-27 | 2020-03-27 | Damping vibration absorber for vibration and noise reduction |
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| Publication Number | Publication Date |
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| CN212106748U true CN212106748U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020418778.5U Active CN212106748U (en) | 2020-03-27 | 2020-03-27 | Damping vibration absorber for vibration and noise reduction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480676A (en) * | 2020-12-26 | 2021-03-12 | 江苏汉龙航空科技发展有限公司 | Vibration isolation and noise reduction damping for ships |
| CN113818559A (en) * | 2021-08-17 | 2021-12-21 | 东南大学 | Giant frame structure and three-dimensional shock absorption substructure |
-
2020
- 2020-03-27 CN CN202020418778.5U patent/CN212106748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480676A (en) * | 2020-12-26 | 2021-03-12 | 江苏汉龙航空科技发展有限公司 | Vibration isolation and noise reduction damping for ships |
| CN113818559A (en) * | 2021-08-17 | 2021-12-21 | 东南大学 | Giant frame structure and three-dimensional shock absorption substructure |
| CN113818559B (en) * | 2021-08-17 | 2022-12-13 | 东南大学 | Giant frame structure and three-dimensional shock absorption substructure |
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