CN205654607U - Wind -guiding circle of noise reduction - Google Patents
Wind -guiding circle of noise reduction Download PDFInfo
- Publication number
- CN205654607U CN205654607U CN201620481212.0U CN201620481212U CN205654607U CN 205654607 U CN205654607 U CN 205654607U CN 201620481212 U CN201620481212 U CN 201620481212U CN 205654607 U CN205654607 U CN 205654607U
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- sound absorbing
- annular limit
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Abstract
The utility model provides a wind -guiding circle of noise reduction, including the cylindrical metal body the body forms solid fixed ring shape limit respectively in both ends around gu be equipped with one deck yielding rubber layer on the terminal surface on fixed ring shape limit gu fixed ring shape edge is equipped with the bolt hole, the chamber is led to to the inside cavity that forms of metal body, form the sound absorbing layer on the inner wall in logical chamber be equipped with the wind guide tank on the inner wall of sound absorbing layer. The utility model discloses can solve the problem that exists among the prior art, through improveing inside structure to and with the fan blade between be connected the position, and then realize the purpose of noise reduction.
Description
Technical field
This utility model relates to Fan Equipment field, especially relates to a kind of air-ducting ring reducing noise.
Background technology
Operationally, air-flow is entered blade space by air inlet to blower fan, then under the driving of blade, forms wind and out does work.At present the main noise of blower fan is that source has: 1, the mechanical noise of ventilation blower, uneven including (1) damage in impeller or because blast causes the deformation of part, makes whole rotor unbalance and the noise that produces；(2) bearing is after operation due to abrasion, the noise mutually produced with axle；(3) noise loosened and produce owing to installing bad or each part to couple；(4) impeller high speed rotating produces vibration, causes a certain partial resonance of body and the noise that produces；2, noise of motor, wherein in whole ventilating system, motor is important component part, but the motor used due to actual blower fan manufacturer is mainly provided by motor manufacturer, blower fan manufacturer does not the most make too many noise-reducing and processes, motor or even blower fan all can be made to produce the biggest noise including rotor unbalance or the axial motion sound of electromagnetic force axial component generation, the motor aerodynamic noise cooling down fan generation etc., and the noise of motor is unless using the quiet motor of high price, being otherwise substantially and to be difficult to avoid that.
Outside above-mentioned reason, air-ducting ring on existing blower fan is easily formed noise in blower fan rotation process, this is the noise produced owing to air-ducting ring arranges Shortcomings in overall structure, so the applicant proposes improvement with regard to this, prestige can solve problem present in these existing products.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, it is provided that a kind of air-ducting ring reducing noise, by the structure that improvement is internal, and and fan blade between connecting portion, and then realize the purpose of reduction noise.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
A kind of air-ducting ring reducing noise, it is characterized in that: include cylindrical metallic body, before and after described body, two ends form stationary annular limit respectively, are provided with one layer of yielding rubber layer on the end face on described stationary annular limit, are provided with bolt hole on described stationary annular limit；It is internally formed hollow cavity at described metal body, the inwall of described cavity is formed sound absorbing layer, the inwall of described sound absorbing layer is provided with wind guide tank.
Doing this utility model further preferably, described wind guide tank is an arcuate groove arranged twist, and one end of described arcuate groove is stub end, and the other end is little head end, and the bottom face of described arcuate groove is arcwall face.
Doing this utility model further preferably, also include that auxiliary positioning body, described auxiliary positioning body have 2, laid respectively at the lower surface on stationary annular limit by welding, described auxiliary positioning body is for being internally formed oil groove, and described oil groove is located just at below bolt hole.
Compared with prior art this utility model is reached to provide the benefit that:
This utility model includes cylindrical metallic body, and before and after described body, two ends form stationary annular limit respectively, is provided with one layer of yielding rubber layer on the end face on described stationary annular limit, is provided with bolt hole on described stationary annular limit；It is internally formed hollow cavity at described metal body, the inwall of described cavity is formed sound absorbing layer, the inwall of described sound absorbing layer is provided with wind guide tank；This utility model is in actual use, when fan blade is installed and to be fastenedly connected between limit and stationary annular limit by fixing bolt, it is possible to formed and well interlock with annular positioning groove, and yielding rubber layer is individual can play compact siro spinning technology, the effect of damping, especially fan blade are work when.Being simultaneously connected with between position and be also not easy to get rusty, especially blower fan is easy to corrosion in the case of using installation environment bad, causes getting rusty and weares and teares each other, and noise increases, and yielding rubber layer can avoid direct contact between the two.Fretting wear can also be alleviated simultaneously, improve service life, reduce noise.
Additionally, forming sound absorbing layer on the inwall of cavity described in the utility model, be provided with wind guide tank on the inwall of described sound absorbing layer, described wind guide tank is an arcuate groove arranged twist, one end of described arcuate groove is stub end, the other end is little head end, and the bottom face of described arcuate groove is arcwall face, and such structure is arranged, the wind flow that fan blade produces can be assisted, will not block up each other and produce noise, then absorb noise by sound absorbing layer, reduce generation and the continuity of noise.Generally installing, the stub end of arcuate groove is near fan blade installation end, and the wind that such fan blade produces can run through wind guide tank and get rid of, reduce distinguished and admirable between block up each other.
This utility model passes through auxiliary positioning body, not only acts as the supporting role to stationary annular limit, and is possible to prevent bolt to leak outside, and prevents bolt and peripheral part from getting rusty by oil groove internal placement lubricating oil or butter.Thus protect air-ducting ring and fan blade, extend its service life.
It follows that this utility model can solve the problem that problems of the prior art, by the structure that improvement is internal, and and fan blade between connecting portion, and then realize the purpose of reduction noise.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.
In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
Schematic diagram when Fig. 2 is that in this utility model, metal body launches.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.
Embodiment: as depicted in figs. 1 and 2, this utility model provides a kind of air-ducting ring reducing noise, it is characterized in that: include cylindrical metallic body 1, before and after described body 1, two ends form stationary annular limit 2 respectively, the end face on described stationary annular limit 2 is provided with one layer of yielding rubber layer 3, described stationary annular limit 2 is provided with bolt hole 4；It is internally formed hollow cavity 5 at described metal body 1, sound absorbing layer 6 is formed on the inwall of described cavity 5, the inwall of described sound absorbing layer 6 is provided with wind guide tank 7, described wind guide tank 7 is an arcuate groove arranged twist, one end of described arcuate groove is stub end 8, the other end is little head end 9, and the bottom face of described arcuate groove is arcwall face.
This utility model also includes that auxiliary positioning body 10, described auxiliary positioning body 10 have 2, is laid respectively at the lower surface on stationary annular limit 2 by welding, and described auxiliary positioning body 10 is for being internally formed oil groove 11, and described oil groove 11 is located just at below bolt hole 4.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this utility model, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (3)
1. the air-ducting ring reducing noise, it is characterized in that: include cylindrical metallic body, before and after described body, two ends form stationary annular limit respectively, are provided with one layer of yielding rubber layer on the end face on described stationary annular limit, are provided with bolt hole on described stationary annular limit；It is internally formed hollow cavity at described metal body, the inwall of described cavity is formed sound absorbing layer, the inwall of described sound absorbing layer is provided with wind guide tank.
A kind of air-ducting ring reducing noise the most according to claim 1, it is characterised in that: described wind guide tank is an arcuate groove arranged twist, and one end of described arcuate groove is stub end, and the other end is little head end, and the bottom face of described arcuate groove is arcwall face.
A kind of air-ducting ring reducing noise the most according to claim 1 and 2, it is characterized in that: also include auxiliary positioning body, described auxiliary positioning body has 2, the lower surface on stationary annular limit is laid respectively at by welding, described auxiliary positioning body is for being internally formed oil groove, and described oil groove is located just at below bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481212.0U CN205654607U (en) | 2016-05-25 | 2016-05-25 | Wind -guiding circle of noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481212.0U CN205654607U (en) | 2016-05-25 | 2016-05-25 | Wind -guiding circle of noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654607U true CN205654607U (en) | 2016-10-19 |
Family
ID=57404312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620481212.0U Expired - Fee Related CN205654607U (en) | 2016-05-25 | 2016-05-25 | Wind -guiding circle of noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205654607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057064A (en) * | 2018-08-23 | 2018-12-21 | 安徽阳露新型建材有限公司 | A kind of composite plate with heat preservation decrease of noise functions |
-
2016
- 2016-05-25 CN CN201620481212.0U patent/CN205654607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057064A (en) * | 2018-08-23 | 2018-12-21 | 安徽阳露新型建材有限公司 | A kind of composite plate with heat preservation decrease of noise functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161019 Termination date: 20190525 |