CN204357726U - Reducing angle helical blade blower fan - Google Patents
Reducing angle helical blade blower fan Download PDFInfo
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- CN204357726U CN204357726U CN201420689695.4U CN201420689695U CN204357726U CN 204357726 U CN204357726 U CN 204357726U CN 201420689695 U CN201420689695 U CN 201420689695U CN 204357726 U CN204357726 U CN 204357726U
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- air
- fan blade
- blade
- continuous helical
- angle
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Abstract
The utility model relates to a kind of reducing angle helical blade blower fan, comprises motor and mandrel, it is characterized in that: mandrel has continuous helical fan blade, have housing outside continuous helical fan blade.The diameter of continuous helical fan blade, is diminished to outlet air end gradually by air intake, and the lift angle of continuous helical fan blade to outlet air end, becomes large by air intake gradually.Beneficial effect is: 1. continuous structure makes overall rigidity good, the needs of the equipment high strength operating mode that is suitable for maximizing; 2. air pushes working surface continuously smooth, and air-flow path is reasonable, and air flow resistance is little, and Dong Neng Zhuan Change efficiency is high; 3. variable-diameter structure makes air-flow from air intake to outlet air end, and whole process runner reduces along with the increase of gas pressure, meets the equilibrium relation between pressure and wind speed, avoids the problem of front end airflow deficiency; 4. angle structure also meets the requirement that gas pressure increases, and along with the increase of gas pressure increases lift angle gradually, avoids the inhibition of gas to blade movement.
Description
Technical field
The utility model relates to that one is sent, exhaust equipment, is applicable to air-supply or the air draft of multiple industry.
Background technique
Air-supply in the market or exhaust equipment have centrifugal blower, axial-flow blower.The efficiency of axial-flow blower is higher than centrifugal blower, and axial-flow blower is used widely in all trades and professions, but due to axial-flow blower pressure head low, cause using scope to be restricted.Some of recent release improve axial-flow blower preferably, as the patent No. " 03133346.x " a kind of axial-flow blower, the patent No. " 201210406981 " Relay-mode draught fan, adopt multilayer small angle impeller serial to form, reach the object producing air pressure ladder and increase in relay mode, pressure head increases, but still there is complex structure, blade is many and discontinuous, rigidity is poor, is not suitable for maximization equipment, and it is smoothly discontinuous that air pushes face, turbulent flow phenomenon is serious, the defect of kinetic energy conversion efficiency difference.
Summary of the invention
The purpose of this utility model is to provide a kind of reducing angle helical blade blower fan to make up the deficiency of prior art.
The technical solution of the utility model is: reducing angle helical blade blower fan, comprises motor and mandrel, it is characterized in that: mandrel has continuous helical fan blade, have housing outside continuous helical fan blade.
Optimize, the diameter of continuous helical fan blade is what change, by air intake to outlet air end, diminishes gradually, and the lift angle of continuous helical fan blade is change, by air intake to outlet air end, becomes large gradually.
Optimize, continuous helical fan blade is that single head or bull are arranged.
Optimize, housing is reducing curved surface, and inner walls is consistent with the gap of continuous helical fan blade.
The beneficial effects of the utility model are: 1. continuous structure makes overall rigidity good, the needs of the equipment high strength degree operating mode that is suitable for maximizing; 2. air pushes working surface continuously smooth, and air-flow path is reasonable, and air flow resistance is little, and kinetic energy conversion efficiency is high; 3. variable-diameter structure makes air-flow from air intake to outlet air end, and whole process runner reduces along with the increase of gas pressure, meets the equilibrium relation between pressure and wind speed, avoids the problem of front end airflow deficiency.; 4. angle structure also meets the requirement that gas pressure increases, and along with the increase of gas pressure increases lift angle gradually, avoids the inhibition of gas to blade movement.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model;
Fig. 2 is that the reducing variable angle spiral of continuous helical fan blade launches schematic diagram.
Embodiment
Embodiment:
In the drawings, 1 is continuous helical fan blade, and 2 is mandrel, and 3 is motor, and 4 is housing, and 7 is air intake shell, and 8 for going out the crust of weathering, and 9A is axle sleeve, and 9B is axle sleeve, and 10A is bearing, and 10B is bearing, and 11 is reducing variable angle spiral evolute.
According to required air quantity, determine the degree that the diameter of continuous helical fan blade 1 successively decreases gradually from air intake.
According to required blast, determine the lift angle of reducing variable angle spiral evolute 11: the angle of spiral increases progressively gradually from air intake (α 1 < α 2 < α 3 < α n).
For ease of describing, in the present embodiment, the head number of continuous helical fan blade 1 is single thread fan blade; In practice, the head number of continuous helical fan blade 1 can be bull.
The utility model assembling complete in, the power that motor 3 provides make mandrel 2 and on continuous helical fan blade 1 rotate in housing 4, wind enters from air intake shell 7, after being pressurizeed, discharges from going out the crust of weathering 8 by continuous helical fan blade 1.
In pressure process, the variable-diameter structure of continuous helical fan blade 1 makes the wind speed change of air more reasonable, and angle structure avoids the inhibition that the wind after pressurization moves to fan blade simultaneously.
Claims (4)
1. reducing angle helical blade blower fan, comprises motor and mandrel, it is characterized in that: mandrel has continuous helical fan blade, have housing outside continuous helical fan blade.
2. reducing angle helical blade blower fan according to claim 1, is characterized in that: the diameter of continuous helical fan blade is what change, by air intake to outlet air end, diminishes gradually, and the lift angle of continuous helical fan blade is change, by air intake to outlet air end, becomes large gradually.
3. reducing angle helical blade blower fan according to claim 1 and 2, is characterized in that: continuous helical fan blade is that single head or bull are arranged.
4. reducing angle helical blade blower fan according to claim 1 and 2, is characterized in that: housing is reducing curved surface, and inner walls is consistent with the gap of continuous helical fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689695.4U CN204357726U (en) | 2014-11-08 | 2014-11-08 | Reducing angle helical blade blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689695.4U CN204357726U (en) | 2014-11-08 | 2014-11-08 | Reducing angle helical blade blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357726U true CN204357726U (en) | 2015-05-27 |
Family
ID=53259199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689695.4U Active CN204357726U (en) | 2014-11-08 | 2014-11-08 | Reducing angle helical blade blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108078140A (en) * | 2018-02-27 | 2018-05-29 | 苏州金莱克精密机械有限公司 | A kind of hair-dryer |
-
2014
- 2014-11-08 CN CN201420689695.4U patent/CN204357726U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108078140A (en) * | 2018-02-27 | 2018-05-29 | 苏州金莱克精密机械有限公司 | A kind of hair-dryer |
| CN108078140B (en) * | 2018-02-27 | 2024-05-28 | 莱克电气绿能科技(苏州)有限公司 | Hair drier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 645152 group 1, moding village, Yuejiang Town, Gaoxian County, Yibin City, Sichuan Province Co-patentee after: Luo Hejian Patentee after: YIBIN TIANSHUN BUILDING MATERIAL GROUP STOCK Co.,Ltd. Address before: 644000 Yibin City High County of Sichuan Province Yue Jiang Zhen Co-patentee before: Luo Hejian Patentee before: GAOXIAN TIANSHUN BUILDING MATERIALS Co.,Ltd. |