CN201779060U - Centrifugal fan impeller - Google Patents
Centrifugal fan impeller Download PDFInfo
- Publication number
- CN201779060U CN201779060U CN2010202906747U CN201020290674U CN201779060U CN 201779060 U CN201779060 U CN 201779060U CN 2010202906747 U CN2010202906747 U CN 2010202906747U CN 201020290674 U CN201020290674 U CN 201020290674U CN 201779060 U CN201779060 U CN 201779060U
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- CN
- China
- Prior art keywords
- blades
- blade
- centrifugal fan
- centrifugal blower
- reinforcing ribs
- 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 - Lifetime
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Abstract
The utility model discloses a centrifugal fan impeller, which comprises a front disc, a back plate and a plurality of blades uniformly distributed and fixed between the front disc and the back plate along the circumference, wherein reinforcing ribs are arranged on each blade, the length direction of the reinforced ribs is parallel to the axial line direction of the centrifugal fan impeller, the reinforcing ribs are arranged in positions near the edges of the blades, two reinforcing ribs are arranged on each blade, are respectively arranged in positions near the outer edge and the inner edge of the blades and have different inwards recessed directions on the blades. When the centrifugal fan impeller is adopted, because the reinforcing ribs are additionally arranged on the blades, the blades can not easily generate bending deformation in the axes direction after the blades receive the effect of the centrifugal force of the impeller in high-speed rotation when the centrifugal fan works, steel plates or aluminum plates with thin thickness can be adopted for making the blades, the pneumatic performance of the fan can be ensured not to be influenced, and the manufacture cost and the operation cost of the fan can also be effectively saved.
Description
Technical field
The utility model relates to a kind of important spare part of blower fan, relates to a kind of impeller of centrifugal blower specifically.
Background technique
At present in tall building and industrial exhaust equipment, centrifugal blower is widely adopted because of it has higher blast, existing centrifugal blower fan blade wheel generally includes shroud, back plate and even distribution are fixed on the blade between shroud and the back plate, fan blade adopts flat board and arc surfaced usually, when centrifugal blower turns round, the impeller of high speed rotating makes blade be subjected to an action of centrifugal force, can make blade produce bending deflection at axis direction, aeroperformance when the bending deflection meeting of blade causes the aeroperformance off-design of centrifugal blower, and make blade with before, the hub disk point of attachment produces extra stress.Existing solution normally strengthens the thickness of blade, distortion with the opposing blade, but this scheme can increase the cost of material of impeller on the one hand, simultaneously, cause the also corresponding increase of the suffered centrifugal force of blade because of vane thickness increases the increase of rear blade quality, the weight of whole impeller strengthens on the other hand, causes the moment of torsion of motor driving wheel rotation also need increase, need the power of expanded motor, increased the fabricating cost of whole centrifugal blower especially.
The model utility content
For overcoming above-mentioned defective, the utility model aims to provide a kind of under the prerequisite that does not increase vane thickness and power of motor, makes the impeller of the on-deformable centrifugal blower of blade.
For achieving the above object, the technical solution adopted in the utility model: a kind of centrifugal blower fan blade wheel, comprise shroud, back plate and evenly distribute and be fixed on several blades between shroud and the back plate along circumference, described every blade is provided with stiffening rib, and the length direction of described stiffening rib is parallel with the axial direction of centrifugal blower fan blade wheel.
Described stiffening rib is located at the edge near blade.
Every blade is provided with two road stiffening ribs, and described two road stiffening ribs are located at outward edge and the inward flange near blade respectively.
The indent direction of described two road stiffening ribs on blade is opposite.
Adopted centrifugal blower fan blade wheel of the present utility model, because the stiffening rib that on blade, adds, when centrifugal blower turns round, blade is under the action of centrifugal force of the impeller that is subjected to high speed rotating, also be difficult for producing bending deflection at axis direction, can adopt less steel plate of thickness or aluminium sheet to make blade, can guarantee that the aeroperformance of blower fan is unaffected, can effectively save the fabricating cost and the operating cost of blower fan again.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cross-sectional view of blade in the utility model.
Among the figure: 1-shroud, plate behind the 2-, 3-blade, 4-stiffening rib.
Embodiment
As shown in Figure 1, the utility model discloses a kind of centrifugal blower fan blade wheel, comprise shroud 1, back plate 2 and evenly distribute and be fixed on several blades 3 between shroud 1 and the back plate 2 along circumference, in sum, with existing common centrifugal blower fan blade wheel basically identical, innovative point of the present utility model is that mainly described every blade 3 is provided with stiffening rib 4, and the length direction of described stiffening rib 4 is parallel with the axial direction of centrifugal blower fan blade wheel.Stiffening rib 4 can suppress when blade 3 carries out impact briquetting usually simultaneously, and two ends of stiffening rib 4 divide in addition has certain distance from shroud 1 and back plate 2, can be usually between 1-5 centimetre, and the width of stiffening rib 4 can be chosen between 1-3 centimetre.
For not being subjected to the influence of stiffening rib 4, described stiffening rib 4, the aeroperformance that guarantees centrifugal blower is not located at edge near blade 3.Usually the distance of stiffening rib 4 from blade 3 edges is 2-5 centimetre.
Centrifugal blower for relatively large number, the distortion of blade 3 when only establishing one stiffening rib 4 on every blade 3 and may be not enough to resist the impeller high speed rotating, at this moment, can be provided with two road stiffening ribs 4 on every blade 3, described two road stiffening ribs 4 are located at outward edge and the inward flange near blade 3 respectively.Is 2-5 centimetre near outer peripheral one stiffening rib 4 with outer peripheral distance.Near one stiffening rib 4 of inward flange and the distance of inward flange is 2-5 centimetre.
In order further to improve the ability of the blade 3 opposing axial deformations that are provided with two road stiffening ribs 4, as shown in Figure 2, the indent direction of described two road stiffening ribs 4 on blade 3 is opposite.
Claims (4)
1. centrifugal blower fan blade wheel, comprise shroud (1), back plate (2) and evenly distribute and be fixed on shroud (1) and back several blades (3) between the plate (2) along circumference, it is characterized in that described every blade (3) is provided with stiffening rib (4), the length direction of described stiffening rib (4) is parallel with the axial direction of centrifugal blower fan blade wheel.
2. centrifugal blower fan blade wheel according to claim 1 is characterized in that described stiffening rib (4) is located at the edge near blade (3).
3. centrifugal blower fan blade wheel according to claim 1 is characterized in that every blade (3) is provided with two road stiffening ribs (4), and described two road stiffening ribs (4) are located at outward edge and the inward flange near blade (3) respectively.
4. centrifugal blower fan blade wheel according to claim 3 is characterized in that the indent direction of described two road stiffening ribs (4) on blade (3) is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202906747U CN201779060U (en) | 2010-08-12 | 2010-08-12 | Centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202906747U CN201779060U (en) | 2010-08-12 | 2010-08-12 | Centrifugal fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779060U true CN201779060U (en) | 2011-03-30 |
Family
ID=43792272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202906747U Expired - Lifetime CN201779060U (en) | 2010-08-12 | 2010-08-12 | Centrifugal fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI509156B (en) * | 2012-08-28 | 2015-11-21 | Asia Vital Components Co Ltd | Fan impeller structure of centrifugal fan |
| CN110039798A (en) * | 2019-05-31 | 2019-07-23 | 洛阳北玻台信风机技术有限责任公司 | A kind of the three-dimensional flow centrifugal blower fan blade wheel and its forming method of carbon fibre materials |
-
2010
- 2010-08-12 CN CN2010202906747U patent/CN201779060U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI509156B (en) * | 2012-08-28 | 2015-11-21 | Asia Vital Components Co Ltd | Fan impeller structure of centrifugal fan |
| CN110039798A (en) * | 2019-05-31 | 2019-07-23 | 洛阳北玻台信风机技术有限责任公司 | A kind of the three-dimensional flow centrifugal blower fan blade wheel and its forming method of carbon fibre materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |