CN221053994U - Reinforcing structure of axial flow fan blade - Google Patents
Reinforcing structure of axial flow fan blade Download PDFInfo
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- CN221053994U CN221053994U CN202322341793.0U CN202322341793U CN221053994U CN 221053994 U CN221053994 U CN 221053994U CN 202322341793 U CN202322341793 U CN 202322341793U CN 221053994 U CN221053994 U CN 221053994U
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Abstract
The reinforcing structure of the axial flow fan blade comprises a hub and blades annularly arranged on the periphery of the hub, wherein reinforcing ribs are arranged on the blades, and the reinforcing ribs are triangular in shape; the reinforcing rib is positioned at the joint between the front edge of the blade and the blade root of the blade; the reinforcing rib comprises a first rib and a second rib, one ends of the first rib and the second rib are connected with each other to form a reinforcing tip, and the other ends of the first rib and the second rib are mutually separated to form an opening part so that the first rib and the second rib form a triangular structure. According to the utility model, through structural simulation analysis, the parts with weak structures and the parts with large deformation of the blades are analyzed, the triangular reinforcing ribs are designed at the joints of the front edges of the blades and the blade roots by utilizing the structural principle of triangles, and the hub is optimized, so that the strength of the blades, especially the joint of the front edges of the blades and the blade roots, can be greatly enhanced, the structural strength is met, the structural weight is reduced by 10% compared with that of the traditional product, and the material cost is reduced.
Description
Technical Field
The utility model relates to the technical field of axial flow fan blades, in particular to a reinforcing structure of an axial flow fan blade.
Background
Chinese patent document No. CN109058161a discloses an axial flow wind wheel and an air conditioner outdoor unit in 2018, 12 months and 21 days, the axial flow wind wheel includes: a hub; a plurality of blades disposed on the hub and extending radially outward of the hub; wherein each of the blades has a root portion connected to the hub, and a tip portion having one end connected to the same-side end of the root portion by a leading edge and the other end connected to the same-side other end of the root portion by a trailing edge, at least part of the trailing edge being recessed toward the leading edge to form a notched portion; the strength difference of the axial flow wind wheel, especially the joint of the front edge and the blade root of the blade is the weakest place, and is easy to split.
Therefore, further improvements are needed.
Disclosure of utility model
The utility model aims to provide a reinforcing structure of an axial flow fan blade, which has the advantages of simple structure, high strength, low cost and strong practicability, so as to overcome the defects in the prior art.
According to the additional strengthening of this purpose design of axial fan blade, including wheel hub and annular blade that sets up in wheel hub week side, its characterized in that: the blade is provided with reinforcing ribs, and the shape of the reinforcing ribs is triangular.
The reinforcing rib is positioned at the joint between the front edge of the blade and the blade root of the blade.
The reinforcing rib comprises a first rib and a second rib, one ends of the first rib and the second rib are connected with each other to form a reinforcing tip, and the other ends of the first rib and the second rib are mutually separated to form an opening part so that the first rib and the second rib form a triangular structure.
The opening is located at the blade root and is disposed in the direction of the hub.
The first rib is located the blade leading edge, and the one end of second rib is located the blade leading edge, and the other end is located the blade trailing edge.
A transition fillet is arranged between the reinforcing rib and the blade.
The reinforcing ribs are arranged protruding from the surface of the blade.
The blade trailing edge is provided with the breach.
According to the utility model, through structural simulation analysis, the parts with weak structures and the parts with large deformation of the blades are analyzed, the triangular reinforcing ribs are designed at the joints of the front edges of the blades and the blade roots by utilizing the structural principle of triangles, and the hub is optimized, so that the strength of the blades, especially the joint of the front edges of the blades and the blade roots, can be greatly enhanced, the structural strength is met, the structural weight is reduced by 10% compared with that of the traditional product, the material cost is reduced, the product quality target is achieved, and the satisfaction of customers is improved, so that the cost reduction effect is achieved.
Drawings
Fig. 1 is a schematic diagram of an overall structure of axial flow fan blades according to an embodiment of the present utility model.
Fig. 2 is a front view of axial flow fan blades according to an embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-2, the reinforcing structure of the axial flow fan blade comprises a hub 1 and blades 2 annularly arranged on the periphery of the hub 1, wherein reinforcing ribs 3 are arranged on the blades 2, and the reinforcing ribs 3 are triangular in shape.
The reinforcing rib 3 is positioned at the connection between the front edge of the blade 2 and the blade root of the blade 2.
The reinforcing rib 3 comprises a first rib 3.1 and a second rib 3.2, one ends of the first rib 3.1 and the second rib 3.2 are connected with each other to form a reinforcing tip 3.3, and the other ends of the first rib 3.1 and the second rib 3.2 are mutually separated to form an opening 3.4 so that the first rib 3.1 and the second rib 3.2 form a triangular structure.
The opening 3.4 is located at the blade root of the blade 2, and the opening 3.4 is arranged in the direction of the hub 1, so that the hub strength is optimized.
The first rib 3.1 is located at the front edge of the blade 2, and one end of the second rib 3.2 is located at the front edge of the blade 2, and the other end is located at the tail edge of the blade 2.
A transition fillet 4 is arranged between the reinforcing rib 3 and the blade 2, so that the connection strength between the reinforcing rib 3 and the blade 2 is improved.
The reinforcing ribs 3 are arranged protruding from the surface of the blade 2.
The tail edge of the blade 2 is provided with the notch 2.1, the pressure difference between the suction surface and the pressure surface at the tail edge of the blade 2 can be reduced by the notch 2.1, the backflow phenomenon of the air flow of the suction surface is avoided, the air flow is prevented from forming an attached vortex at the tail edge of the blade 2, and the noise generated during the rotation of the axial flow fan blade is reduced.
The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a reinforced structure of axial fan blade, includes wheel hub (1) and annular blade (2) of setting in wheel hub (1) week side, its characterized in that: the blade (2) is provided with a reinforcing rib (3), and the reinforcing rib (3) is triangular;
The reinforcing rib (3) comprises a first rib (3.1) and a second rib (3.2), one ends of the first rib (3.1) and the second rib (3.2) are connected with each other to form a reinforcing tip (3.3), and the other ends of the first rib (3.1) and the second rib (3.2) are mutually separated to form an opening (3.4) so that the first rib (3.1) and the second rib (3.2) form a triangular structure;
The opening (3.4) is positioned at the blade root of the blade (2), and the opening (3.4) is arranged towards the hub (1).
2. The reinforcing structure of an axial flow fan blade according to claim 1, wherein: the reinforcing rib (3) is positioned at the joint between the front edge of the blade (2) and the blade root of the blade (2).
3. The reinforcing structure of an axial flow fan blade according to claim 1, wherein: the first ribs (3.1) are positioned at the front edge of the blade (2), one end of the second ribs (3.2) are positioned at the front edge of the blade (2), and the other end of the second ribs are positioned at the tail edge of the blade (2).
4. The reinforcing structure of an axial flow fan blade according to claim 1, wherein: a transition fillet (4) is arranged between the reinforcing rib (3) and the blade (2).
5. The reinforcing structure of an axial flow fan blade according to claim 1, wherein: the reinforcing ribs (3) are arranged protruding from the surface of the blade (2).
6. The reinforcing structure of an axial flow fan blade according to claim 1, wherein: the tail edge of the blade (2) is provided with a notch (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341793.0U CN221053994U (en) | 2023-08-29 | 2023-08-29 | Reinforcing structure of axial flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341793.0U CN221053994U (en) | 2023-08-29 | 2023-08-29 | Reinforcing structure of axial flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221053994U true CN221053994U (en) | 2024-05-31 |
Family
ID=91222556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322341793.0U Active CN221053994U (en) | 2023-08-29 | 2023-08-29 | Reinforcing structure of axial flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221053994U (en) |
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2023
- 2023-08-29 CN CN202322341793.0U patent/CN221053994U/en active Active
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