CN206785733U - Outer rotor low-noise energy-saving explosion-proof centrifugal fan - Google Patents
Outer rotor low-noise energy-saving explosion-proof centrifugal fan Download PDFInfo
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- CN206785733U CN206785733U CN201720653531.XU CN201720653531U CN206785733U CN 206785733 U CN206785733 U CN 206785733U CN 201720653531 U CN201720653531 U CN 201720653531U CN 206785733 U CN206785733 U CN 206785733U
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Abstract
The utility model discloses a kind of outer rotor low-noise energy-saving explosion-proof centrifugal fan, including noise reducing casing, adjusting bracket, explosion-proof casing and adjusting base, interior snail tongue is provided with the inside of the snail tongue of the noise reducing casing, forms cavity between interior snail tongue and snail tongue, the noise reduction layer of filled honeycomb shape in cavity；The periphery of noise reducing casing connects adjusting bracket by several connecting rods, and an explosion-proof casing is installed in the both sides of adjusting bracket respectively；Adjusting bracket is provided with the fixing hole of several uniformly annular array distributions；The arc groove coordinated with adjusting bracket is provided with adjusting base, adjusting base is provided with a through hole, and for through hole along the axially arranged of backing roll, through hole is interior to be provided with fixing bolt；The outer rotor low-noise energy-saving explosion-proof centrifugal fan is using double-deck snail tongue structure and designs filling noise reduction layer, substantially reduces noise caused by blower fan；Explosion-proof casing can greatly improve the explosion-proof performance of the blower fan, improve its security performance to greatest extent, be worth promoting.
Description
Technical field
Centrifugal fan technical field is the utility model is related to, especially a kind of outer rotor low-noise energy-saving explosion-proof centrifugal leads to
Blower fan.
Background technology
Centrifugal blower is by the mechanical energy of input, improves gas pressure and supplies gas side by side the machinery of body, it is a kind of driven
Fluid machinery.Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, dust discharge
And cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance；Paddy
The drying of thing and select and recommend；Inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..
The problem of existing centrifugal fan is present be：First, the structure of snail tongue is simple, and noise is big；2nd, contain for some
Lack effective explosion precaution under the working environment of explosive inflammable gas, it is dangerous big；3rd, regulation wind direction is not easy, it is necessary to refill
Put support or supporting surface.Easily increase noise.
Utility model content
The utility model aims to provide one kind using double-deck snail tongue structure and designs filling noise reduction layer, substantially reduces blower fan production
Raw noise；Explosion-proof casing can greatly improve the explosion-proof performance of the blower fan, improve its security performance, and tuning to greatest extent
Convenient outer rotor low-noise energy-saving explosion-proof centrifugal fan.
To achieve the above object, the utility model provides following technical scheme：Outer rotor low-noise energy-saving explosion-proof centrifugal leads to
Blower fan, including noise reducing casing, adjusting bracket, explosion-proof casing and adjusting base, the snail tongue inner side of the noise reducing casing are provided with interior snail
Tongue, forms cavity between interior snail tongue and snail tongue, the noise reduction layer of filled honeycomb shape in cavity；The periphery of noise reducing casing passes through several companies
Bar connects adjusting bracket, and adjusting bracket is overall in a ring, is provided with breach at the air outlet of noise reducing casing, adjusting bracket it is transversal
Face is rectangular, and an explosion-proof casing is installed in the both sides of adjusting bracket respectively, is symmetrical arranged, the outer of explosion-proof casing in a ring, and
It is connected as a single entity in adjusting bracket, two form cavity between explosion-proof casing and adjusting bracket, noise reducing casing is located in the cavity；Drop
The explosion-proof casing of spiral case air inlet side of making an uproar is provided with air inlet, and the air inlet of the air inlet and noise reducing casing is connected by pipeline
Connect；Adjusting bracket is provided with the fixing hole of several uniformly annular array distributions, and fixing hole is located at the outside of explosion-proof casing；Adjust bottom
The arc groove coordinated with adjusting bracket is provided with seat, the bottom of arc groove is provided with the supporting of several uniformly annular array distributions
Roller, adjusting base are provided with a through hole, and for through hole along the axially arranged of backing roll, through hole is interior to be provided with fixing bolt.
As further scheme of the present utility model：Impeller is provided with the noise reducing casing, impeller is arranged on external rotor electric
On machine.
As further scheme of the present utility model：The backing roll is arranged in adjusting base by roll shaft.
As further scheme of the present utility model：The periphery of the backing roll is enclosed with cushion pad, adjusting bracket it is outer
Face is provided with one layer of cushion pad.
As further scheme of the present utility model：The explosion-proof casing is corresponded to be provided with the air outlet of noise reducing casing and opened
Mouthful, parameatal explosion-proof casing is connected as a single entity with noise reducing casing.
As further scheme of the present utility model：The explosion-proof casing is hemispherical.
As further scheme of the present utility model：The fixing hole of the position correspondence adjusting bracket bottommost of the through hole.
As further scheme of the present utility model：The cross section of the arc groove is T-shaped.
Compared with prior art, the beneficial effects of the utility model are：The outer rotor low-noise energy-saving explosion-proof centrifugal is divulged information
Machine is using double-deck snail tongue structure and designs filling noise reduction layer, substantially reduces noise caused by blower fan；Explosion-proof casing can carry significantly
The explosion-proof performance of the high blower fan, improves its security performance to greatest extent；
The utility model devises the adjusting bracket of annular, can be rotated centered on spiral case, be entered by fixing hole
Row positioning, need not appliance stand or supporting surface again for existing blower fan so as to adjust the direction of spiral case air outlet
To adjust the direction of blower fan, noise is greatly reduced for tradition is by way of appliance stand or supporting surface；In addition
This is provided with cushion pad using new adjusting bracket and backing roll, greatly reduces vibrations, reduces noise, is worth pushing greatly
Extensively.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model；
Fig. 3 is the structural representation of adjusting base of the present utility model；
Fig. 4 is the cross-sectional view of arc groove of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-4, in the utility model embodiment, outer rotor low-noise energy-saving explosion-proof centrifugal fan, including drop
Make an uproar spiral case 1, adjusting bracket 2, explosion-proof casing 3 and adjusting base 4, the inner side of snail tongue 5 of the noise reducing casing 1 is provided with interior snail tongue 6, interior
Form cavity between snail tongue 6 and snail tongue 5, the noise reduction layer of filled honeycomb shape in cavity；The periphery of noise reducing casing 1 passes through several connecting rods
Adjusting bracket 2 is connected, adjusting bracket 2 is overall in a ring, and breach, the horizontal stroke of adjusting bracket 2 are provided with the air outlet of noise reducing casing 1
Rectangular in cross-section, the both sides of adjusting bracket 2 are installed an explosion-proof casing 3, are symmetrical arranged respectively, and the outer of explosion-proof casing 3 is in ring
Shape, and be connected as a single entity in adjusting bracket 2, cavity is formed between two explosion-proof casings 3 and adjusting bracket 2, noise reducing casing 1 is located at should
In cavity；The explosion-proof casing 3 of the air inlet side of noise reducing casing 1 is provided with air inlet, the air inlet of the air inlet and noise reducing casing 1
Connected by pipeline；
Adjusting bracket 2 is provided with the fixing hole 7 of several uniformly annular array distributions, and fixing hole 7 is located at the outer of explosion-proof casing 3
Side；
The arc groove 8 coordinated with adjusting bracket 2 is provided with adjusting base 4, the bottom of arc groove 8 is provided with several uniform
The backing roll 9 of annular array distribution, adjusting base 4 are provided with a through hole, and through hole is axially arranged along backing roll 9, in through hole
Provided with fixing bolt 10.
It is above-mentioned, impeller is provided with noise reducing casing 1, impeller is arranged on external rotor electric machine.
Above-mentioned, backing roll 9 is arranged in adjusting base 4 by roll shaft.
Above-mentioned, the periphery of backing roll 9 is enclosed with cushion pad, and the outside of adjusting bracket 2 is provided with one layer of cushion pad.
It is above-mentioned, opening, parameatal explosion-proof casing 3 and drop are provided with the air outlet of the corresponding noise reducing casing 1 of explosion-proof casing 3
Spiral case 1 of making an uproar is connected as a single entity.
Above-mentioned, explosion-proof casing 3 is hemispherical, and explosion-proof performance is most strong.
It is above-mentioned, the fixing hole 7 of the bottommost of position correspondence adjusting bracket 2 of through hole.
Above-mentioned, the cross section of arc groove 8 is T-shaped.
Design feature and its operation principle of the present utility model：Noise reducing casing 1 is using the double-deck structure of snail tongue 5 and designs filling
Noise reduction layer, substantially reduce noise caused by blower fan；
The utility model devises the adjusting bracket 2 of annular, the energy of explosion-proof casing 3 that the both sides of adjusting bracket 2 are installed respectively
The explosion-proof performance of the blower fan is enough greatly improved, improves its security performance to greatest extent；Adjusting bracket 2 is supported by backing roll 9,
Its loop configuration can be rotated centered on spiral case, be positioned by fixing hole 7, so as to adjust the court of spiral case air outlet
To for existing blower fan appliance stand or supporting surface the direction of blower fan need not be adjusted again；This other use is new
The adjusting bracket 2 and backing roll 9 of type are provided with cushion pad, greatly reduce vibrations, reduce noise, pass through dress relative to tradition
Put and greatly reduce noise for the mode of support or supporting surface.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
1. outer rotor low-noise energy-saving explosion-proof centrifugal fan, including noise reducing casing, adjusting bracket, explosion-proof casing and regulation bottom
Seat, it is characterised in that be provided with interior snail tongue on the inside of the snail tongue of the noise reducing casing, cavity, cavity are formed between interior snail tongue and snail tongue
The noise reduction layer of interior filled honeycomb shape；The periphery of noise reducing casing connects adjusting bracket by several connecting rods, and adjusting bracket is in integrally ring
Shape, breach is provided with the air outlet of noise reducing casing, the cross section of adjusting bracket is rectangular, and the both sides of adjusting bracket are installed respectively
One explosion-proof casing, is symmetrical arranged, and the outer of explosion-proof casing in a ring, and is connected as a single entity in adjusting bracket, two explosion-proof casings
Cavity is formed between adjusting bracket, noise reducing casing is located in the cavity；Set on the explosion-proof casing of noise reducing casing air inlet side
There is air inlet, the air inlet of the air inlet and noise reducing casing is connected by pipeline；Adjusting bracket is provided with several uniform circular arrays
The fixing hole of column distribution, fixing hole are located at the outside of explosion-proof casing；It is recessed that the arc coordinated with adjusting bracket is provided with adjusting base
Groove, the bottom of arc groove are provided with the backing roll of several uniformly annular array distributions, and adjusting base is provided with a through hole, through hole
Along the axially arranged of backing roll, fixing bolt is provided with through hole.
2. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the noise reduction snail
Impeller is provided with shell, impeller is arranged on external rotor electric machine.
3. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the backing roll
It is arranged on by roll shaft in adjusting base.
4. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the backing roll
Periphery be enclosed with cushion pad, the outside of adjusting bracket is provided with one layer of cushion pad.
5. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the explosion-proof shell
Body, which corresponds to, is provided with opening at the air outlet of noise reducing casing, parameatal explosion-proof casing is connected as a single entity with noise reducing casing.
6. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the explosion-proof shell
Body is hemispherical.
7. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the through hole
The fixing hole of position correspondence adjusting bracket bottommost.
8. outer rotor low-noise energy-saving explosion-proof centrifugal fan according to claim 1, it is characterised in that the arc is recessed
The cross section of groove is T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653531.XU CN206785733U (en) | 2017-06-07 | 2017-06-07 | Outer rotor low-noise energy-saving explosion-proof centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653531.XU CN206785733U (en) | 2017-06-07 | 2017-06-07 | Outer rotor low-noise energy-saving explosion-proof centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785733U true CN206785733U (en) | 2017-12-22 |
Family
ID=60716625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720653531.XU Active CN206785733U (en) | 2017-06-07 | 2017-06-07 | Outer rotor low-noise energy-saving explosion-proof centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785733U (en) |
-
2017
- 2017-06-07 CN CN201720653531.XU patent/CN206785733U/en active Active
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