CN210949262U - Novel plate type axial flow fan impeller - Google Patents
Novel plate type axial flow fan impeller Download PDFInfo
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- CN210949262U CN210949262U CN201921102711.4U CN201921102711U CN210949262U CN 210949262 U CN210949262 U CN 210949262U CN 201921102711 U CN201921102711 U CN 201921102711U CN 210949262 U CN210949262 U CN 210949262U
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Abstract
The utility model discloses a novel plate-type axial flow fan impeller, which comprises a hub and a plurality of blades uniformly distributed on the outer peripheral surface of the hub, wherein the blades are in a space S-shaped torsion shape, the blade root to the blade tip takes the axis of the hub as the reference, the curvature is in S-shaped transition, the curvature of the blade root is 28-9, and the curvature of the blade tip is 6-28; the blade root to the blade tip take the axis of the hub as a reference, the torsion angle is in S-shaped transition, the torsion angle of the blade root is 14-42 degrees, and the torsion angle of the blade tip is 45-67 degrees. Adopted the utility model discloses an impeller, owing to adopted the distorted free-form surface of space S type, gaseous circulation is more smooth and easy, and each cross-section atress of blade is more even, and the additional moment of flexure of production is littleer, has improved the reliability of the rotatory during operation of impeller, and life is also longer, and simultaneously, the air resistance that the impeller produced is littleer, and high performance parameter scope is wider, makes things convenient for the lectotype of product.
Description
Technical Field
The utility model relates to a fan wheel especially relates to a novel board-like axial fan impeller of high-efficient low noise, belongs to the fluid machinery field.
Background
The traditional axial flow fan impeller is composed of a hub and a plurality of blades uniformly distributed on the hub, the blades can be manufactured by steel plate pressing and aluminum alloy casting, but the impeller has the defects of low fan efficiency, high noise, narrow working area and the like due to various reasons, such as large air resistance, more air channel vortexes and the like, and the design of a plate type axial flow fan impeller with high efficiency, low noise and wide working area is urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims at providing a novel plate-type axial fan impeller with higher fan efficiency, lower noise and wider working area.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel plate type axial flow fan impeller comprises a hub and a plurality of blades uniformly distributed on the peripheral surface of the hub, wherein the blades are in a space S-shaped torsion shape, the curvature is in S-shaped transition from the blade root to the blade tip by taking the axis of the hub as a reference, the curvature at the blade root is 28-9, and the curvature at the blade tip is 6-28; the blade root to the blade tip take the axis of the hub as a reference, the torsion angle is in S-shaped transition, the torsion angle of the blade root is 14-42 degrees, and the torsion angle of the blade tip is 45-67 degrees.
Adopted the utility model discloses an impeller, owing to adopted the distorted free-form surface of space S type, gaseous circulation is more smooth and easy, and each cross-section atress of blade is more even, and the additional moment of flexure of production is littleer, has improved the reliability of the rotatory during operation of impeller, and life is also longer, and simultaneously, the air resistance that the impeller produced is littleer, and high performance parameter scope is wider, makes things convenient for the lectotype of product.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the blade of the present invention.
In the figure: 1-blade root, 2-blade tip, 3-hub and 4-blade.
Detailed Description
As shown in fig. 1-2, the utility model discloses a novel plate-type axial fan impeller, including a wheel hub 3 and a plurality of blade 4 of equipartition on the wheel hub 3 outer peripheral face, blade 4 is the space S type and twists reverse the form.
The first embodiment is as follows: the curvature of the blade root 1 to the blade tip 2 is in S-shaped transition by taking the axis of the hub 3 as a reference, wherein the curvature of the blade root 1 is 28, and the curvature of the blade tip 2 is 28; the torsion angle of the blade root 1 to the blade tip 2 is in S-shaped transition by taking the axis of the hub 3 as a reference, the torsion angle of the blade root 1 is 14 degrees, and the torsion angle of the blade tip 2 is 67 degrees. The larger curvature difference and torsion angle difference between the blade root 1 and the blade tip 2 enable the work of stirring air to be larger when the impeller rotates, and therefore the fan has higher efficiency.
Example two: the curvature of the blade root 1 to the blade tip 2 is in S-shaped transition by taking the axis of the hub 3 as a reference, wherein the curvature of the blade root 1 is 9, and the curvature of the blade tip 2 is 28; the torsion angle between the blade root 1 and the blade tip 2 is in S-shaped transition by taking the axis of the hub 3 as a reference, the torsion angle of the blade root 1 is 42 degrees, and the torsion angle of the blade tip 2 is 45 degrees. The smaller curvature difference and torsion angle difference between the blade root 1 and the blade tip 2 enable the resistance of the impeller in rotation to be smaller, and therefore the fan has lower noise.
Example three: the curvature at the blade root 1 is 20, and the curvature at the blade tip 2 is 14; the torsion angle between the blade root 1 and the blade tip 2 is in S-shaped transition by taking the axis of the hub 3 as a reference, the torsion angle of the blade root 1 is 28 degrees, and the torsion angle of the blade tip 2 is 52 degrees. And (3) simulating the actual working condition by using a computer, and preferably selecting the optimal small curvature difference and torsion angle difference between the blade root 1 and the blade tip 2, so that the efficiency and the noise of the fan are in a better state.
Impeller, its blade can adopt the form of steel sheet mould pressing to make, not only can reach the efficiency and the noise the same with the as cast streamlined blade of aluminum alloy, the also greatly reduced of cost of manufacture, the intensity of blade is also higher than the as cast of aluminum alloy.
Claims (1)
1. A novel plate-type axial flow fan impeller comprises a hub (3) and a plurality of blades (4) uniformly distributed on the peripheral surface of the hub (3), wherein two ends of each blade (4) are respectively provided with a blade root (1) and a blade tip (2), and the novel plate-type axial flow fan impeller is characterized in that the blades (4) are in a space S-shaped torsion shape, the curvature from the blade root (1) to the blade tip (2) is in S-shaped transition by taking the axis of the hub (3) as the reference, wherein the curvature at the blade root (1) is 28-9, and the curvature at the blade tip (2) is 6-28; the torsion angle between the blade root (1) and the blade tip (2) is in S-shaped transition by taking the axis of the hub (3) as a reference, the torsion angle of the blade root (1) is 14-42 degrees, and the torsion angle of the blade tip (2) is 45-67 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102711.4U CN210949262U (en) | 2019-07-15 | 2019-07-15 | Novel plate type axial flow fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102711.4U CN210949262U (en) | 2019-07-15 | 2019-07-15 | Novel plate type axial flow fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949262U true CN210949262U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921102711.4U Active CN210949262U (en) | 2019-07-15 | 2019-07-15 | Novel plate type axial flow fan impeller |
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| Country | Link |
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| CN (1) | CN210949262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196813A (en) * | 2020-09-25 | 2021-01-08 | 中国直升机设计研究所 | Lubricating oil cooling fan for unmanned helicopter |
-
2019
- 2019-07-15 CN CN201921102711.4U patent/CN210949262U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196813A (en) * | 2020-09-25 | 2021-01-08 | 中国直升机设计研究所 | Lubricating oil cooling fan for unmanned helicopter |
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