CN201062591Y - Outer-rotor centrifugal fan axle bed - Google Patents
Outer-rotor centrifugal fan axle bed Download PDFInfo
- Publication number
- CN201062591Y CN201062591Y CNU2007200346931U CN200720034693U CN201062591Y CN 201062591 Y CN201062591 Y CN 201062591Y CN U2007200346931 U CNU2007200346931 U CN U2007200346931U CN 200720034693 U CN200720034693 U CN 200720034693U CN 201062591 Y CN201062591 Y CN 201062591Y
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- CN
- China
- Prior art keywords
- blower fan
- axle bed
- axle
- motor
- axle seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an axle seat of a centrifugal blower fan of an outer rotor, and relates to a part of a blower fan, in particular to an axle seat of the centrifugal blower fan of the outer rotor. The utility model comprises a motor, a blower fan casing and an axle seat, a motor axle is connected with the axle seat, the axle seat is arranged on the cross beam at the near center of the blower fan casing, and the axle set of the blower fan is connected with the motor axle of the outer rotor. The axle seat adopted by the axle seat of the centrifugal blower fan of the outer rotor adopts an integrated structure, the processing is convenient, kidney holes are designed at the both ends of the shaft seat bottom plane, when being installed, the preferred angles of the motor and the impeller can be adjusted, to reach the preferred equilibrium point, thereby to reduce the vibration of the blower fan, to reduce the noise of the blower fan, to reach the effect of the environment protection, and to ensure the service life of the blower fan to be prolonged.
Description
Affiliated technical field:
The utility model relates to a kind of part of blower fan, particularly a kind of axle bed of external rotor centrifugal blower.
Background technique:
Big with reference to the present external rotor centrifugal blower of China, ubiquity noise, exceed the regulation environmental protection noise standard of country.When a new blower fan runs well, vibration just taken place in fan casing, directly influence the dynamic balancing and the static balancing of draught fan impeller, add the support member of blower fan, poor rigidity, Wind-Pressure Resistance and vibration strength do not include, just produced the big basic reason of noise, the air quantity pressure of discharge reduces.Particularly the blower fan axle bed, adopt that band iron and cover welding combine, technology falls behind, weld yielding, vibration along with the blower fan running, the long welding part sealing-off that has of time one, motor shaft and axle bed hole coaxality have deviation, and it is bigger to make blower fan that vibration take place, the part of whole blower fan is damaged, the maintenance rate height, just reduce the working life of blower fan virtually, blower fan as vibrate, the blast flow reduces, fan noise is increased, direct influence to surrounding environment.Can not adapt to the industrial needs that develop of China's modernization, should guarantee the blower fan Safety performance as this blower fan, reduce the noise of blower fan again, must scientific and technical innovation.Blower fan is from intuitively seeming, structure is very simple, wanting really to reach national sector standard is the comparison difficulty, still the scientific research personnel of China is not studying, the scientific research personnel of majority state also in the noise problem of research blower fan, though design is improved in the technical many places of having done of blower fan, has obtained certain effect in the world, but in production practices, still there is the technical problem that does not overcome as yet at the certain model centrifugal blower.
Summary of the invention:
The purpose of this utility model is to overcome a kind of axle bed of external rotor centrifugal blower, the axle bed of blower fan is to be welded, blower fan in the running, the axle bed welding part causes distortion or sealing-off easily, make motor shaft and axle bed coaxality that deviation be arranged, blower fan is vibrated, noise increases, the axle bed of external rotor centrifugal blower a kind of rational in infrastructure, effective is provided.
The technological scheme that its technical problem that solves the utility model adopts is: contain that motor, Fan casing, axle bed, motor shaft are connected with axle bed, axle bed is arranged on the off-centre crossbeam of Fan casing, the blower fan axle bed is connected with the external rotor electric arbor, axle bed is the part of a key, as axle bed poor quality, poor rigidity, directly influence the exhaust air rate of blower fan, noise is big, and the dynamic balancing of multiple wing impeller and static balancing and motor have been brought damage, shortened working life, maintenance rate increases.With the axle bed of original poor rigidity that is welded, existing innovation forms with accurate cast steel for the axle bed overall structure, and cast steel axle bed rigidity intensity is good, and is indeformable, shortened production technology, improved quality of product, reduced the big defective of fan noise.
The utility model beneficial effect is: external rotor centrifugal blower axle bed, the axle bed that adopts is an overall structure, easy to process, slot has been designed at two ends, axle bed bottom plane, and the best angle of can regulate motor and impeller reaches optimal balance point during installation, thereby reduce the vibration of blower fan, reduce the noise of blower fan, reach environment protection effect, make the life-span of blower fan obtain prolongation.
Description of drawings:
A kind of external rotor centrifugal blower of model utility axle bed concrete structure is drawn by following examples and accompanying drawing thereof:
Fig. 1 is a kind of external rotor centrifugal blower plan view
Fig. 2 is a kind of external rotor centrifugal blower axle bed plan view
Fig. 3 is a kind of external rotor centrifugal blower axle bed plan view
In the drawings: 1, motor 2, Fan casing 3, axle bed
Embodiment:
In Fig. 1: motor (1) axle is connected with axle bed (3), and axle bed (3) is arranged on the off-centre crossbeam of Fan casing (2).Because of axle bed (3) intensity is good, blower fan when running vibration is little, and noise is low.
In embodiment illustrated in fig. 2, axle bed (3) is that accurate cast steel forms, and the front is a triangle, and there is a through hole at the center, and there is a keyway axis hole upper end, guarantees must not move about axle.
In the embodiment shown in fig. 3, axle bed (3) is a T shape, and two screws are arranged above, must not move with the bolt axle, axle bed (3) footing is an oblong-shaped, and respectively there is a slot on their two tops, and the purpose of slot is mainly regulated equilibrium position, the blower fan left and right sides.
Claims (2)
1. an external rotor centrifugal blower axle bed contains motor, Fan casing, axle bed, and it is characterized in that: motor shaft is connected with axle bed, and axle bed is arranged on the off-centre crossbeam of Fan casing, and the blower fan axle bed is connected with the external rotor electric arbor.
2. a kind of external rotor centrifugal blower axle bed according to claim 1, it is characterized in that: axle bed is that accurate cast steel forms, the front is a triangle, there is a through hole at the center, it is a T shape that there are a keyway, axle bed in the axis hole upper end, and two screws are arranged above, the axle bed footing is an oblong-shaped, and respectively there is a slot on their two tops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200346931U CN201062591Y (en) | 2007-02-09 | 2007-02-09 | Outer-rotor centrifugal fan axle bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200346931U CN201062591Y (en) | 2007-02-09 | 2007-02-09 | Outer-rotor centrifugal fan axle bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062591Y true CN201062591Y (en) | 2008-05-21 |
Family
ID=39450967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200346931U Expired - Fee Related CN201062591Y (en) | 2007-02-09 | 2007-02-09 | Outer-rotor centrifugal fan axle bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062591Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671222A (en) * | 2013-12-13 | 2014-03-26 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Power-driven gas compressor of novel structure |
| CN104481899A (en) * | 2014-12-05 | 2015-04-01 | 浙江理工大学 | Outer-rotor centrifugal fan adopting electromagnet bearing |
-
2007
- 2007-02-09 CN CNU2007200346931U patent/CN201062591Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671222A (en) * | 2013-12-13 | 2014-03-26 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Power-driven gas compressor of novel structure |
| CN104481899A (en) * | 2014-12-05 | 2015-04-01 | 浙江理工大学 | Outer-rotor centrifugal fan adopting electromagnet bearing |
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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: 20080521 Termination date: 20160209 |