CN202789720U - Adjustable type axial flow fan impeller - Google Patents
Adjustable type axial flow fan impeller Download PDFInfo
- Publication number
- CN202789720U CN202789720U CN 201220213272 CN201220213272U CN202789720U CN 202789720 U CN202789720 U CN 202789720U CN 201220213272 CN201220213272 CN 201220213272 CN 201220213272 U CN201220213272 U CN 201220213272U CN 202789720 U CN202789720 U CN 202789720U
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- CN
- China
- Prior art keywords
- blade
- flow fan
- fan impeller
- wheel hub
- axial flow
- 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 adjustable type axial flow fan impeller which comprises a hub and blades, wherein a blade clamping shaft is arranged on the tail portion of each blade, and each blade and each blade clamping shaft are in an integral structure. The adjustable type axial flow fan impeller is characterized in that a plurality of pressing blocks are fixedly connected on the hub, a clamping cavity is formed by the hub and the pressing blocks in an embraced fit mode, and the blade clamping shafts are arranged in the clamping cavity. According to the adjustable type axial flow fan impeller, the independent pressing blocks are adopted for adjusting and tightly pressing the blades, the problem of mutual interference of the blades in the process of installing and adjusting is solved, and fixed connection of the blades is ensured. The adjustable type axial flow fan impeller has the advantages of being simple in structure, firm in locking of the blades, and convenient to adjust.
Description
Technical field
The utility model relates to the blower fan appurtenances, especially a kind of adjustable axial-flow fan impeller.
Background technique
At present, the axial flow fan vane wheel on the market mostly is integral form, and is very inconvenient in processing and equipment adjustment.Chinese patent 201020537899.8 provides a kind of blade wheel structure of adjusting type, turns the obvolvent mode that hub A and impeller turn hub B by impeller, and the angle of impeller is adjusted.This scheme has solved axial flow fan vane wheel in the shortcoming of manufacturing and assembling and setting bothers.But, owing to adopted a pair of installation way that hub clamps many impellers that turns, impeller being produced when adjusting each other easily disturb, the efficient of adjustment is lower; In addition, also can there be certain error in the diameter of the clamp shaft of every impeller, and the fan blade that causes impeller to have easily in the process that clamps clamps insecure, produces and returns loose phenomenon.
The model utility content
The adjustable axial-flow fan impeller that the purpose of this utility model provides and a kind ofly clamps firmly, reliability is strong, be easy to adjust.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of adjustable axial-flow fan impeller, comprise wheel hub, blade, be provided with blade folder axle at the blade afterbody, blade and blade folder axle are monolithic construction, it is characterized in that: be fixedly connected with several compact heaps at wheel hub, the corresponding obvolvent with compact heap of wheel hub forms and clamps the chamber, and blade folder axle is located at and clamps in the chamber.
Preferably, described blade quantity is corresponding with compact heap quantity.
Preferably, described compact heap is provided with positioning boss, and this boss is corresponding with wheel hub to be fastened and connected.
Preferably, the fitting surface of described wheel hub and compact heap has the compression gap of 1mm～2mm.
Preferably, described wheel hub and compact heap are bolted to connection.
After the utility model adopts said structure, owing to adopted independently compact heap that blade is adjusted and compressed, solve blade in the mutual interference problem of installing in adjusting, guaranteed the firm connection of every blade.The utility model is simple in structure, and blade locking firmly, and is easy to adjust.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the utility model plan view.
Fig. 2 is the utility model left view.
Fig. 3 is assembling schematic representation of the present utility model.
Among the figure: 1, wheel hub, 2, compact heap, 21, boss, 3, blade, 31, blade folder axle, 4, bolt, 5, clamp the chamber.
Embodiment
Such as Fig. 1, Fig. 2, shown in Figure 3, a kind of adjustable axial-flow fan impeller, comprise wheel hub 1, blade 3, be provided with blade folder axle 31 at blade 3 afterbodys, blade 3 is monolithic construction with blade folder axle 31, it is characterized in that: be fixedly connected with several compact heaps 2 at wheel hub 1, wheel hub 1 forms with compact heap 2 corresponding obvolvents and clamps chamber 5, and blade folder axle 31 is located at and clamps in the chamber 5.
Preferably, described blade 3 quantity are corresponding with compact heap 2 quantity.
Preferably, described compact heap 2 is provided with positioning boss 21, this boss 21 and wheel hub 1 corresponding being fastened and connected.
Preferably, the fitting surface of described wheel hub 1 and compact heap 2 has the compression gap of 1mm～2mm.
Preferably, described wheel hub 1 is fixedly connected with by bolt 4 with compact heap 2.
Working principle: the blade folder axle 31 of blade 3 afterbodys is installed in wheel hub 1 and forms clamping chamber 5 with compact heap 2 corresponding obvolvents, bolt 4 pretension compact heaps 2 stay the space of adjustable blade 3, adjust blade 3 to suitable angle, lock bolt 4 compresses compact heap 2, finishes the adjustment locking of blade 3.Other blades 3 are adjusted with the same manner.
The above is preferred implementation of the present utility model; certainly can not limit with this interest field of the utility model; should be understood that; for those skilled in the art; the technical solution of the utility model is made amendment or is equal to replacement, do not break away from the protection domain of technical solutions of the utility model.
Claims (5)
1. adjustable axial-flow fan impeller, comprise wheel hub (1), blade (3), be provided with blade folder axle (31) at blade (3) afterbody, blade (3) is monolithic construction with blade folder axle (31), it is characterized in that: be fixedly connected with several compact heaps (2) at wheel hub (1), the corresponding obvolvent with compact heap (2) of wheel hub (1) forms and clamps chamber (5), and blade folder axle (31) is located at and clamps in the chamber (5).
2. adjustable axial-flow fan impeller according to claim 1, it is characterized in that: described blade (3) quantity is corresponding with compact heap (2) quantity.
3. adjustable axial-flow fan impeller according to claim 1, it is characterized in that: described compact heap (2) is provided with positioning boss (21), this boss (21) and corresponding being fastened and connected of wheel hub (1).
4. adjustable axial-flow fan impeller according to claim 1 is characterized in that: described wheel hub (1) and the fitting surface of compact heap (2) have the compression gap of 1mm～2mm.
5. adjustable axial-flow fan impeller according to claim 1, it is characterized in that: described wheel hub (1) is fixedly connected with by bolt (4) with compact heap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213272 CN202789720U (en) | 2012-05-14 | 2012-05-14 | Adjustable type axial flow fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213272 CN202789720U (en) | 2012-05-14 | 2012-05-14 | Adjustable type axial flow fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789720U true CN202789720U (en) | 2013-03-13 |
Family
ID=47816988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220213272 Expired - Fee Related CN202789720U (en) | 2012-05-14 | 2012-05-14 | Adjustable type axial flow fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530886A (en) * | 2020-04-22 | 2021-10-22 | 中国电建集团透平科技有限公司 | Large wind tunnel fan impeller |
-
2012
- 2012-05-14 CN CN 201220213272 patent/CN202789720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530886A (en) * | 2020-04-22 | 2021-10-22 | 中国电建集团透平科技有限公司 | Large wind tunnel fan impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140514 |