CN204283991U - A kind of draught fan impeller assembly - Google Patents
A kind of draught fan impeller assembly Download PDFInfo
- Publication number
- CN204283991U CN204283991U CN201420742511.6U CN201420742511U CN204283991U CN 204283991 U CN204283991 U CN 204283991U CN 201420742511 U CN201420742511 U CN 201420742511U CN 204283991 U CN204283991 U CN 204283991U
- Authority
- CN
- China
- Prior art keywords
- blade
- ring support
- impeller
- end cap
- draught fan
- 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 provides a kind of draught fan impeller assembly, comprise the ring support, blade and the rear trochal disc that set gradually, described blade rear edge is connected with rear trochal disc, blades leading edges is connected with ring support, this ring support or blades leading edges are also provided with impeller end cap, blade is stated in this impeller end housing residence, and impeller end cap central offers vent hole.The utility model, impeller assembly intensity is improved, and ensure that the stability in operation process, prevents the formation of eddy current, and gas is disposable by blower fan, and without stopping gas, make air-flow steady, blower fan working efficiency is high.
Description
Technical field
The utility model relates to blower fan technical field, the draught fan impeller assembly that particularly a kind of structure is stable.
Background technique
Centrifugal blower is widely used in factory, mine, tunnel, cooling tower, vehicle, the ventilation of boats and ships and building, dust discharge and cooling, centrifugal fan is primarily of compositions such as casing, impeller, motors, traditional blower fan, its impeller is usually centrifugal to be arranged on impeller hub disk, and upper impeller is unsettled, is easily out of shape when rotating speed is higher, structural instability, and existing blower fan easily forms eddy current due to the problem of its structural design, gas stops in housing inside turn, and working efficiency is not high.
Model utility content
The deficiencies in the prior art in view of the above, the purpose of this utility model is the draught fan impeller assembly providing a kind of stabilized structure.
For achieving the above object and other relevant objects, the utility model provides a kind of draught fan impeller assembly, comprise the ring support, blade and the rear trochal disc that set gradually, described blade rear edge is connected with rear trochal disc, blades leading edges is connected with ring support, this ring support or blades leading edges are also provided with impeller end cap, and blade is stated in this impeller end housing residence, and impeller end cap central offers vent hole.
Due to traditional impeller, its blade only has while fix with rear trochal disc, another side does not support, very unstable in the process of High Rotation Speed, easily distortion or damage, makes fan airflow unstable, air-supply weak effect, adopt said structure rear blade both sides to be connected on ring support and on rear trochal disc, enhance the overall structure of blade and impeller assembly, make it more stable when High Rotation Speed; After gas enters blower fan, directly enter impeller assembly through vent hole and be then sent to exhaust outlet on blower fan, do not spiral, prevent the formation of eddy current in all the other places of blower fan, gas is disposable by blower fan, and without stopping gas, make air-flow steady, blower fan working efficiency is high.
Each described blade is all connected with ring support, and described blades leading edges is also provided with locating column, and described impeller end covers and offers the mounting hole corresponding with described locating column.This structure is convenient to install between impeller end cap and blade and is fixed.
Described impeller end covers and also offers many grooves adapted with described blades leading edges, and described mounting hole offers this bottom portion of groove, and described blades leading edges and locating column coordinate with groove and mounting hole respectively.Blade stretches in groove and is connected and fixed more firm with impeller end cap.
Described impeller end cap is loop configuration, and described mounting hole is near the Inner edge of impeller end cap.
Described blade is arc, and described groove is curve bath, and described locating column is positioned at blade one end near rear trochal disc center.
Described blade rear edge embeds in rear trochal disc, described blades leading edges embeds in ring support, described impeller end cap is positioned at ring support inner ring, and this impeller end cap periphery and ring support inner headed face are fitted, and the front-end face of impeller end cap is concordant with ring support side.This structure makes impeller end cap incorporate ring support inner ring completely, avoids producing with other structures of blower fan interfering.
Described ring support and blade and rear trochal disc one-body molded, one-body molded intensity is higher.
Described rear trochal disc is provided with the connecting sleeve for connecting electric machine main shaft.
As mentioned above, the beneficial effects of the utility model are: blade both sides are connected on ring support and on rear trochal disc, enhance the overall structure of blade and impeller assembly, make it more stable when High Rotation Speed; The installation of impeller end cap is easy to connect, after gas enters blower fan, directly enter impeller assembly through vent hole and be then sent to exhaust outlet on blower fan, do not spiral in all the other places of blower fan, prevent the formation of eddy current, gas is disposable by blower fan, without stopping gas, make air-flow steady, blower fan working efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment impeller assembly;
Fig. 3 is the structural representation of the utility model embodiment impeller end cap.
Piece mark explanation
21 rear trochal discs
22 ring supports
23 blades
24 locating columns
25 connecting sleeves
3 impeller end caps
31 vent holes
32 mounting holes
33 grooves
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
As shown in Figure 1 to Figure 3, the utility model provides a kind of draught fan impeller assembly, comprise the ring support 22 set gradually, blade 23 and rear trochal disc 21, blade 23 rear edge is fixedly connected with rear trochal disc 21, blade 23 front edge is connected with ring support 22, blade 23 front edge is also provided with impeller end cap 3, this impeller end cap 3 covers blade 23, impeller end cap 3 outer rim coordinates with ring support 22 inner ring, impeller end cap 3 offers vent hole 31, each blade 23 is all connected with ring support 22, blade 23 front edge is also provided with locating column 24, impeller end cap 3 offers the mounting hole 32 corresponding with locating column 24, this structure is convenient to install and is fixed, impeller end cap 3 also offers many grooves 33 adapted with blade 23 front edge, mounting hole 32 is offered bottom this groove 33, blade 23 front edge and locating column 24 coordinate with groove 33 and mounting hole 32 respectively.Blade 23 stretches in groove 33 and is connected and fixed more firmly with impeller end cap 3, and the end cap of impeller described in this example is loop configuration, and described mounting hole is near the Inner edge of impeller end cap.
Blade 23 is arc, and groove 33 is curve bath, and locating column 24 is positioned at blade 23 one end near rear trochal disc 21 center.Blade 23 rear edge embeds in rear trochal disc 21, blade 23 front edge embeds in ring support 22, impeller end cap 3 is positioned at ring support 22 inner ring, this impeller end cap 3 periphery and ring support 22 inner headed face are fitted, the front-end face of impeller end cap 3 is concordant with ring support 22 side, ring support 22 and blade 23 and rear trochal disc 21 one-body molded, make its intensity higher, this structure makes impeller end cap 3 incorporate ring support 22 inner ring completely, avoiding producing with other structures of blower fan interfering, rear trochal disc 21 being also provided with the connecting sleeve 25 for connecting electric machine main shaft.
Due to traditional impeller, its blade 23 only has while fix with rear trochal disc 21, another side does not support, very unstable in the process of High Rotation Speed, easily distortion or damage, makes fan airflow unstable, air-supply weak effect, adopt said structure rear blade 23 both sides to be connected on ring support 22 and on rear trochal disc 21, enhance the overall structure of blade 23 and impeller assembly, make it more stable when High Rotation Speed.
Above-described embodiment is the principle of illustrative model utility and effect thereof only, but not for limiting the utility model, any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (8)
1. a draught fan impeller assembly, it is characterized in that: comprise the ring support, blade and the rear trochal disc that set gradually, described blade rear edge is connected with rear trochal disc, blades leading edges is connected with ring support, this ring support or blades leading edges are also provided with impeller end cap, blade is stated in this impeller end housing residence, and impeller end cap central offers vent hole.
2. a kind of draught fan impeller assembly according to claim 1, it is characterized in that: each described blade is all connected with ring support, and described blades leading edges is also provided with locating column, described impeller end covers and offers the mounting hole corresponding with described locating column.
3. a kind of draught fan impeller assembly according to claim 2, it is characterized in that: described impeller end covers and also offers many grooves adapted with described blades leading edges, described mounting hole offers this bottom portion of groove, and described blades leading edges and locating column coordinate with groove and mounting hole respectively.
4. a kind of draught fan impeller assembly according to claim 3, it is characterized in that: described impeller end cap is loop configuration, described mounting hole is near the Inner edge of impeller end cap.
5. a kind of draught fan impeller assembly according to claim 4, it is characterized in that: described blade is arc, described groove is curve bath, and described locating column is positioned at blade one end near rear trochal disc center.
6. a kind of draught fan impeller assembly according to claim 1, it is characterized in that: described blade rear edge embeds in rear trochal disc, described blades leading edges embeds in ring support, described impeller end cap is positioned at ring support inner ring, this impeller end cap periphery and ring support inner headed face are fitted, and the front-end face of impeller end cap is concordant with ring support side.
7. a kind of draught fan impeller assembly according to claim 1, is characterized in that: described ring support and blade and rear trochal disc one-body molded.
8. a kind of draught fan impeller assembly according to claim 1, is characterized in that: described rear trochal disc is provided with the connecting sleeve for connecting electric machine main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742511.6U CN204283991U (en) | 2014-12-01 | 2014-12-01 | A kind of draught fan impeller assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742511.6U CN204283991U (en) | 2014-12-01 | 2014-12-01 | A kind of draught fan impeller assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283991U true CN204283991U (en) | 2015-04-22 |
Family
ID=52867156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742511.6U Expired - Fee Related CN204283991U (en) | 2014-12-01 | 2014-12-01 | A kind of draught fan impeller assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405682A (en) * | 2014-12-01 | 2015-03-11 | 重庆德固科技有限公司 | Fan propeller assembly |
-
2014
- 2014-12-01 CN CN201420742511.6U patent/CN204283991U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405682A (en) * | 2014-12-01 | 2015-03-11 | 重庆德固科技有限公司 | Fan propeller assembly |
| CN104405682B (en) * | 2014-12-01 | 2017-01-11 | 重庆德固科技有限公司 | Fan propeller assembly |
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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 |
Granted publication date: 20150422 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |