CN201318318Y - Fan impeller - Google Patents
Fan impeller Download PDFInfo
- Publication number
- CN201318318Y CN201318318Y CNU2008201697022U CN200820169702U CN201318318Y CN 201318318 Y CN201318318 Y CN 201318318Y CN U2008201697022 U CNU2008201697022 U CN U2008201697022U CN 200820169702 U CN200820169702 U CN 200820169702U CN 201318318 Y CN201318318 Y CN 201318318Y
- Authority
- CN
- China
- Prior art keywords
- leading edge
- blade
- fan impeller
- shroud
- outer end
- 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 relates to a component part for a pipe coil fan. The fan impeller comprises vanes (1) and front discs(2)arranged at two ends of the vanes(1). Each front disc(2) comprises a front edge inner end(5) and a front edge outer end(6) which are connected into a whole body; the front edge inner end(5)is connected with the vanes(1); and the front edge outer end(6)is provided with a turned edge. The fan impeller is simple in structure and low in price, and the vanes are high in concentricity and strength and low in noise.
Description
Technical field
The utility model relates to a kind of component of coil pipe blower fan.
Background technique
Impeller is the vitals of coil pipe blower fan, as shown in Figure 1 and Figure 2, impeller is made of blade 1 and the shroud 2 that is arranged on its two ends, existing shroud 2 is made of the leading edge 3 and the flange 4 that are connected as a single entity with blade 1, the end of leading edge 3 is converted into right angle side, flange 4 is riveted on the right angle side, its objective is 2 reinforcement effects of shroud.The defective that existing structure exists is: the riveting step more complicated, the intensity of shroud 2 and radial concentric degree are difficult to control in the course of working, and gap and loosening can occur at the long-time leading edge 3 of back riveted joint and the flange 4 of using, therefore impeller can produce noise during action.
Summary of the invention
The purpose of this utility model is in order to solve the technological deficiency that existing draught fan impeller exists, disclose a kind of easy to process, effectively control the draught fan impeller of shroud noise.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of draught fan impeller is made of blade and shroud, and described shroud is made of the leading edge the inner and the leading edge outer end that are connected as a single entity, and described leading edge the inner links to each other with blade, leading edge outer end crimping.
As preferably, described crimping is aduncate round hook-type, and intensity is better.
As preferably, described leading edge is inner to be connected as a single entity with blade tip, processes convenient.
Owing to adopted a kind of draught fan impeller of above-mentioned technological scheme, shroud is made of leading edge the inner and leading edge outer end, and described leading edge the inner links to each other with blade, leading edge outer end crimping.On production technology, omitted overturning process, not only saved cost but also cancellation riveted joint flange carries out the crimping operation with the two ends of blade simultaneously, when external diameter remains unchanged, strengthened the concentricity and the intensity of blade, and gap and loosening and noise that produce has also obtained solution appears in leading edge and flange in the original structure.In sum, this draught fan impeller have that simple in structure, price is convenient, the concentricity of blade and intensity height, advantage that noise is low.
Description of drawings
Fig. 1: the structural representation of existing draught fan impeller in the background technique.
Fig. 2: the A place enlarged diagram among Fig. 1.
Fig. 3: the utility model embodiment's structural representation.
Fig. 4: the B place enlarged diagram among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing 3, Fig. 4 embodiment of the present utility model is made a detailed explanation.A kind of draught fan impeller as shown in Figure 3, Figure 4 is made of blade 1 and the shroud 2 that is arranged on blade 1 two ends.Shroud 2 is made of leading edge that is connected as a single entity inner 5 and leading edge outer end 6, and leading edge inner 5 and blade 1 end are connected as a single entity, and leading edge outer end 6 crimpings, crimping are aduncate round hook-type.
On production technology, omitted overturning process with respect to existing structure, not only saved cost but also cancellation riveted joint flange carries out the crimping operation with the two ends of blade 1 simultaneously, when external diameter remains unchanged, strengthened the concentricity and the intensity of blade 1, and gap and loosening and noise that produce has also obtained solution appears in leading edge 3 and flange 4 in the original structure.
The foregoing description only is a this patent mode of execution preferably, and the structure that all employing the technical program are described, feature and the variation on its spiritual principle, modification all belong to the protection domain of this patent.
Claims (3)
1. draught fan impeller, constitute by blade (1) and the shroud (2) that is arranged on blade (1) two ends, it is characterized in that described shroud (2) is made of the leading edge the inner (5) that is connected as a single entity and leading edge outer end (6), described inner edge front end (5) links to each other with blade (1), leading edge outer end (6) crimping.
2. a kind of draught fan impeller according to claim 1 is characterized in that described crimping is aduncate round hook-type.
3. a kind of draught fan impeller according to claim 1 and 2 is characterized in that described leading edge the inner (5) and blade (1) end are connected as a single entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201697022U CN201318318Y (en) | 2008-12-15 | 2008-12-15 | Fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201697022U CN201318318Y (en) | 2008-12-15 | 2008-12-15 | Fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318318Y true CN201318318Y (en) | 2009-09-30 |
Family
ID=41197083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201697022U Expired - Lifetime CN201318318Y (en) | 2008-12-15 | 2008-12-15 | Fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318318Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671239A (en) * | 2014-01-07 | 2014-03-26 | 攀枝花钢企米易白马球团有限公司 | Fan rotor set |
| CN106151103A (en) * | 2015-03-18 | 2016-11-23 | 秦彪 | Impeller in centrifugal and cross flow blower and manufacture method thereof |
-
2008
- 2008-12-15 CN CNU2008201697022U patent/CN201318318Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671239A (en) * | 2014-01-07 | 2014-03-26 | 攀枝花钢企米易白马球团有限公司 | Fan rotor set |
| CN106151103A (en) * | 2015-03-18 | 2016-11-23 | 秦彪 | Impeller in centrifugal and cross flow blower and manufacture method thereof |
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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 |
Granted publication date: 20090930 |
|
| CX01 | Expiry of patent term |