CN216044514U - Device for reducing noise of centrifugal fan - Google Patents
Device for reducing noise of centrifugal fan Download PDFInfo
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- CN216044514U CN216044514U CN202122543140.1U CN202122543140U CN216044514U CN 216044514 U CN216044514 U CN 216044514U CN 202122543140 U CN202122543140 U CN 202122543140U CN 216044514 U CN216044514 U CN 216044514U
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Abstract
The utility model provides a device for reducing the noise of a centrifugal fan, which comprises a fan body and a silencing structure, wherein a bottom plate is arranged at the bottom of the fan body, a fixed block is fixedly connected to the surface of the bottom plate, and a motor is arranged on the surface of the fixed block. According to the utility model, through arranging the silencing structures which are respectively arranged at the air inlet and the air outlet, the air inlet adopts the air inlet silencing barrel, the filter screen is arranged in one end of the air inlet, sundries are prevented from entering the fan body, the air inlet silencing barrel adopts the round silencing cotton for silencing treatment, the air outlet adopts the air outlet silencing piece, the cellular silencing cotton is adopted in the air outlet, the structure is convenient and simple, the manufacturing cost is low, the operation is facilitated, most of the existing fan noise reduction devices are provided with the silencer in the fan body, the manufacturing cost is high, the installation and the disassembly are not facilitated, and the device is relatively complex, the problems are avoided and the practicability of the device is effectively improved.
Description
Technical Field
The utility model relates to the technical field of solving the noise of a centrifugal fan, in particular to a device for reducing the noise of the centrifugal fan.
Background
The centrifugal fan is a common auxiliary production device for stone processing enterprises, is mainly used in a ventilation and dust removal device, is a high-energy-consumption device, has a large proportion of consumed power resources in stone processing, and has become a common concern of stone production enterprises in terms of energy conservation and consumption reduction along with the increasing shortage of energy sources and the popularization and application of high-yield and high-efficiency working faces in China.
At present, most of existing fan noise reduction devices are provided with silencers inside fan bodies, so that the manufacturing cost is high, the installation and the disassembly are not facilitated, and the device is more complicated, so that the device for reducing the noise of the centrifugal fan is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a device for reducing the noise of a centrifugal fan.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a device for reducing centrifugal fan noise, includes fan body and amortization structure, the amortization structure is located the income wind gap and the setting of air outlet department of fan body, the bottom of fan body is provided with the bottom plate, the fixed surface of bottom plate is connected with the fixed block, the surface of fixed block is provided with the motor.
Preferably, the surface of the fan body, the motor and the fixed block is sleeved with an outer cover auxiliary structure.
Preferably, the silencing structure comprises a first connecting piece and a second connecting piece, the first connecting piece is fixedly connected with the air outlet of the fan body, and the second connecting piece is fixedly connected with the air inlet of the fan body.
Preferably, the surface of the first connecting piece is fixedly connected with an air outlet silencing piece, and hole type silencing cotton is arranged inside the air outlet silencing piece.
Preferably, the surface of the second connecting piece is fixedly connected with an air inlet silencing tube, a filter screen is arranged inside one end, far away from the second connecting piece, of the air inlet silencing tube, and circular silencing cotton is arranged on the inner wall of the air inlet silencing tube.
Preferably, the housing auxiliary structure includes a metal housing, and four outer surfaces of the metal housing are fixedly connected by fixing bolts. .
Preferably, the equal fixedly connected with expanding spring of four sides inner wall of metal dustcoat, expanding spring all is provided with four at every inner wall, expanding spring's one end fixedly connected with heat preservation soundproof cotton, the through-hole has been seted up on the left surface of metal dustcoat and left side heat preservation soundproof cotton surface, the size of through-hole equals with the air intake size of fan body.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. in the utility model, by arranging the silencing structure, when the fan body runs, the noise at the air inlet and the air outlet is very high, the silencing structure is respectively arranged at the air inlet and the air outlet, the air inlet adopts an air inlet silencing barrel, and a filter screen is arranged in one end of the silencer, so that sundries are prevented from entering the fan body, the circular silencing cotton is adopted in the air inlet silencing barrel for silencing, the air outlet is provided with an air outlet silencing piece, hole type silencing cotton is adopted in the air inlet silencing piece, two layers of silencing are adopted, so that a good noise reduction effect is achieved, the structure is convenient and simple, the manufacturing cost is low, the operation is facilitated, most of the existing fan noise reduction devices are provided with silencers in the fan body, so that the manufacturing cost is high, and is unfavorable for the installation and dismantlement, and is more loaded down with trivial details, and the device's application has avoided above-mentioned problem and has effectively improved the practicality of equipment.
2. According to the fan, the outer cover auxiliary structure is arranged, the metal outer cover is sleeved on the periphery of the fan body and fixed through the fixing bolt, disassembly and assembly are facilitated, the heat-preservation soundproof cotton is connected with the inner part of the fan body through the telescopic spring and abuts against the fan body and the motor, noise generated by vibration of the fan body in the operation process is reduced, meanwhile, the telescopic spring also plays a role in shock absorption protection, and stability and durability of equipment are greatly improved.
Drawings
Fig. 1 is a schematic perspective view of a device for reducing noise of a centrifugal fan according to the present invention;
FIG. 2 is a schematic perspective view of a portion of a centrifugal fan noise reduction apparatus according to the present invention;
FIG. 3 is a perspective view of a silencer structure of an apparatus for reducing noise of a centrifugal fan according to the present invention;
FIG. 4 is a schematic perspective view of a silencer structure of an apparatus for reducing noise of a centrifugal fan according to the present invention;
fig. 5 is a schematic perspective view of a cover auxiliary structure of an apparatus for reducing noise of a centrifugal fan according to the present invention.
Illustration of the drawings: 1. a fan body; 2. a fixed block; 3. a base plate; 4. a sound deadening structure; 5. a housing auxiliary structure; 6. a motor; 41. a first connecting member; 42. an air outlet silencing piece; 43. cellular silencing cotton; 44. an air inlet silencing barrel; 45. a filter screen; 46. round silencing cotton; 47. a second connecting member; 51. a metal housing; 52. a tension spring; 53. heat-insulating soundproof cotton; 54. fixing the bolt; 55. and a through hole.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The specific arrangement and function of the sound-deadening structure 4 and the cover auxiliary structure 5 will be described in detail below.
As shown in fig. 2, 3 and 4, the silencing structure 4 includes a first connecting piece 41 and a second connecting piece 47, the first connecting piece 41 is fixedly connected to the air outlet of the fan body 1, the second connecting piece 47 is fixedly connected to the air inlet of the fan body 1, the surface of the first connecting piece 41 is fixedly connected to the air outlet silencing piece 42, the air outlet silencing piece 42 is internally provided with a hole type silencing cotton 43, the surface of the second connecting piece 47 is fixedly connected to the air inlet silencing tube 44, the end of the air inlet silencing tube 44 away from the second connecting piece 47 is internally provided with a filter screen 45, and the inner wall of the air inlet silencing tube 44 is provided with a circular silencing cotton 46.
The whole silencing structure 4 achieves the effect that by arranging the silencing structure 4, when the fan body runs, the noise at the air inlet and the air outlet is very high, the silencing structure 4 is respectively arranged at the air inlet and the air outlet, the air inlet adopts an air inlet silencing barrel 44, and a filter screen 45 is arranged in one end of the silencer, so as to prevent sundries from entering the fan body 1, a round silencing cotton 46 is arranged in the air inlet silencing barrel 44 for silencing treatment, an air outlet silencing piece 42 is arranged at the air outlet, a hole type silencing cotton 43 is arranged in the air outlet, two layers of silencing are adopted, so as to play a good noise reduction effect, the structure is convenient and simple, the manufacturing cost is low, the operation is facilitated, most of the existing fan noise reduction devices are provided with a silencer in the fan body 1, so that the manufacturing cost is high, and is unfavorable for the installation and dismantlement, and is more loaded down with trivial details, and the device's application has avoided above-mentioned problem and has effectively improved the practicality of equipment.
As shown in fig. 1 and 5, the outer cover auxiliary structure 5 includes a metal outer cover 51, the four-side outer surface of the metal outer cover 51 passes through fixing bolts 54 and is fixedly connected, the four-side inner wall of the metal outer cover 51 is fixedly connected with expansion springs 52, the expansion springs 52 are provided with four on each inner wall, one end of each expansion spring 52 is fixedly connected with heat-insulating soundproof cotton 53, through holes 55 are formed in the surfaces of the left side surface and the left side heat-insulating soundproof cotton 53 of the metal outer cover 51, and the size of each through hole 55 is equal to the size of the air inlet of the fan body 1.
The effect that its whole dustcoat auxiliary structure 5 reached does, through setting up dustcoat auxiliary structure 5, metal dustcoat 51 is sheathe in the periphery of fan body 1, metal dustcoat 51 is all fixed with fixing bolt 54, do benefit to dismantlement and installation, inside adopts expanding spring 52 to connect the structure of heat preservation soundproof cotton 53, heat preservation soundproof cotton 53 offsets with fan body 1 and motor 6, reduce fan body 1 because of the noise that the vibration produced at the operation in-process, and simultaneously, expanding spring 52 has also played shock attenuation protection's effect, the stability and the durability of equipment have been improved greatly.
The whole working principle is that when the fan body is in operation, the noise at the air inlet and the air outlet is very high, the silencing structure 4 is respectively arranged at the air inlet and the air outlet, the air inlet adopts an air inlet silencing tube 44, a filter screen 45 is arranged in one end of the air inlet silencing tube to prevent sundries from entering the fan body 1, a round silencing cotton 46 is arranged in the air inlet silencing tube 44 for silencing, the air outlet adopts an air outlet silencing piece 42, silencing cotton 43 is arranged in the air outlet, two layers of silencing are arranged to achieve good noise reduction effect, the structure is convenient and simple, the manufacturing cost is low, the operation is facilitated, most of the existing fan noise reduction devices are provided with silencers in the fan body 1, the manufacturing cost is high, the installation and the disassembly are not facilitated, the device is more complicated, the problems are avoided, and the practicability of the device is effectively improved, sheathe in metal dustcoat 51 in fan body 1's periphery, metal dustcoat 51 is fixed with fixing bolt 54, do benefit to dismantlement and installation, inside adoption expanding spring 52 connects heat preservation soundproof cotton 53's structure, heat preservation soundproof cotton 53 offsets with fan body 1 and motor 6, reduce fan body 1 because of the noise that the vibration produced in the function process, and simultaneously, expanding spring 52 has also played the effect of shock attenuation protection, has improved the stability and the durability of equipment greatly.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. A device for reducing centrifugal fan noise, includes fan body (1) and amortization structure (4), its characterized in that: the noise reduction structure (4) is arranged at an air inlet and an air outlet of the fan body (1), a bottom plate (3) is arranged at the bottom of the fan body (1), a fixed block (2) is fixedly connected to the surface of the bottom plate (3), and a motor (6) is arranged on the surface of the fixed block (2).
2. An apparatus for reducing centrifugal fan noise according to claim 1, wherein: the surface of the fan body (1), the motor (6) and the fixed block (2) is sleeved with an outer cover auxiliary structure (5).
3. An apparatus for reducing centrifugal fan noise according to claim 1, wherein: the noise reduction structure (4) comprises a first connecting piece (41) and a second connecting piece (47), the first connecting piece (41) is fixedly connected with the air outlet of the fan body (1), and the second connecting piece (47) is fixedly connected with the air inlet of the fan body (1).
4. An apparatus for reducing centrifugal fan noise according to claim 3, wherein: an air outlet silencing piece (42) is fixedly connected to the surface of the first connecting piece (41), and hole type silencing cotton (43) is arranged inside the air outlet silencing piece (42).
5. An apparatus for reducing centrifugal fan noise according to claim 3, wherein: the surface of the second connecting piece (47) is fixedly connected with an air inlet silencing tube (44), a filter screen (45) is arranged inside one end, far away from the second connecting piece (47), of the air inlet silencing tube (44), and circular silencing cotton (46) is arranged on the inner wall of the air inlet silencing tube (44).
6. An apparatus for reducing centrifugal fan noise according to claim 2, wherein: the outer cover auxiliary structure (5) comprises a metal outer cover (51), and four outer surfaces of the metal outer cover (51) are fixedly connected through fixing bolts (54).
7. An apparatus for reducing centrifugal fan noise according to claim 6, wherein: the equal fixedly connected with expanding spring (52) of four sides inner wall of metal dustcoat (51), expanding spring (52) all are provided with four at every inner wall, the one end fixedly connected with heat preservation soundproof cotton (53) of expanding spring (52), through-hole (55) have been seted up on the left surface of metal dustcoat (51) and left side heat preservation soundproof cotton (53) surface, the size of through-hole (55) equals with the air intake size of fan body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543140.1U CN216044514U (en) | 2021-10-20 | 2021-10-20 | Device for reducing noise of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543140.1U CN216044514U (en) | 2021-10-20 | 2021-10-20 | Device for reducing noise of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216044514U true CN216044514U (en) | 2022-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122543140.1U Active CN216044514U (en) | 2021-10-20 | 2021-10-20 | Device for reducing noise of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216044514U (en) |
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2021
- 2021-10-20 CN CN202122543140.1U patent/CN216044514U/en active Active
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