CN203348132U - Axial flow fan support structure clamping blades on two sides - Google Patents
Axial flow fan support structure clamping blades on two sides Download PDFInfo
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- CN203348132U CN203348132U CN 201320359881 CN201320359881U CN203348132U CN 203348132 U CN203348132 U CN 203348132U CN 201320359881 CN201320359881 CN 201320359881 CN 201320359881 U CN201320359881 U CN 201320359881U CN 203348132 U CN203348132 U CN 203348132U
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- blade
- leg
- supporting structure
- propeller fan
- midplane
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Abstract
The utility model relates to an axial flow fan support structure clamping blades on two sides. The axial flow fan support structure comprises two sets of blade supports, each blade support comprises a middle plane and a plurality of supporting legs, the middle plane is connected with a rotating shaft, and the supporting legs extend outwards from the periphery of the middle plane. The two sets of blade supports are overlapped, and the blades are fixed between the supporting legs of the two sets of blade supports. According to the axial flow fan support structure, the blade supports clamping the blades on the two sides are used for improving the strength of the blade supports, therefore, the service life of an impeller of an axial flow fan can be guaranteed, the strength of the impeller is guaranteed, load of machining equipment and labor intensity of operation workers are reduced, and good economic benefits can be achieved.
Description
Technical field
the utility model relates to the universal machine field, particularly relates to a kind of propeller fan supporting structure of two-sided clamping blade.
Background technique
axial fan is that a kind of mechanical energy by rotation is converted to gas pressure and can and gas be transferred out to reach general machinery equipment cooling, the ventilation purpose, and fan impeller is the critical component of realizing transformation of energy.Owing to will realizing High Rotation Speed, the intensity of impeller is very very crucial index, has directly affected use safety and the working life of ventilator.Rotor of Axial Flow Fan mainly is comprised of wheel hub (blade support) and blade, and blade pass is crossed specific mode and is fixed on wheel hub.The means of fixation of blade and wheel hub mainly contains following several:
1, blade directly is welded on wheel hub, and this mode is applicable to the metal arc plate blade usually, requires blade and wheel hub that good welding performance is arranged, and amount of finish is higher, and workman's weld horizontal has directly affected quality of product.
, blade is with together with wheel hub is cast in, this mode is applicable to airfoil blade usually, is applicable to small-sized axial fan, die cost is high, a certain point defect can cause scrapping of whole impeller.
, blade is riveted on wheel hub, the both economical practicality of this method, do not have special requirement to blade, hub material, but need to consider the strength problem of blade, wheel hub.The large axial fan impeller for the impeller load, be a kind of feasible method by increasing hub thickness, but can increase the load of process equipment.
Summary of the invention
the purpose of this utility model is to provide a kind of propeller fan supporting structure of two-sided clamping blade.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of propeller fan supporting structure of two-sided clamping blade, it comprises a blade support, described blade support comprises the midplane that is connected with rotatingshaft, the some legs that extend outward from the periphery of described midplane, described blade support has two groups, two groups of described blade support overlaids, blade is fixed between the leg of two groups of described blade supports.
preferably, described leg extends outward from described midplane after a torsional center line reverses.
further preferably, described midplane has the boss protruded to the one side, and when two groups of described blade support overlaids, the boss of two groups of described midplanes fits.
further preferably, have torsional angle β between described leg and midplane, the thickness of described leg is Th, and the thickness of described blade is Tb, the protrusion height H=of described boss ((Tb+Th)/cos β-Th)/2.
preferably, described leg has the stationary plane for stator blade, offer several holes for fixing with described blade on described stationary plane, several described holes are symmetrical along position, a hole center line, and have a side-play amount O=(2H+Th between the torsional center line at described hole position center line and described torsional angle β place) * sin β/2.
preferably, described blade and leg fix by rivet or screw.
preferably, described leg is provided with four, and four described legs are evenly arranged in the periphery of described midplane.
preferably, described blade support is one-body molded.
because technique scheme is used, the utility model compared with prior art has following advantages:
the utility model improves the intensity of blade support by the blade support with two-sided clamping blade, thereby guarantee the working life of axial fan impeller, can guarantee impeller intensity, can alleviate again the load of process equipment and operator's labor intensity, realize good economic benefit.
The accompanying drawing explanation
accompanying drawing 1 is three-dimensional structure diagram of the present utility model;
accompanying drawing 2 is floor map of the present utility model;
accompanying drawing 3 is A-A sectional view in accompanying drawing 2;
accompanying drawing 4 is B section enlarged view in accompanying drawing 3;
the floor map that accompanying drawing 5 is the utility model Leaf support;
accompanying drawing 6 is C-C sectional view in accompanying drawing 5;
accompanying drawing 7 is D section enlarged view in accompanying drawing 6;
the floor map that accompanying drawing 8 is leg in the utility model.
wherein: 1, blade support; 11, midplane; 110, boss; 12, leg; 120, stationary plane; 121, hole; 2, blade; 30, torsional center line; 31, position, hole center line.
Embodiment
below in conjunction with drawings and Examples, the utility model is further described:
the propeller fan supporting structure of a kind of two-sided clamping blade as shown in Figure 1, 2, it comprises a blade support 1, blade support 1 comprises the midplane 11 be connected with rotatingshaft, the some legs 12 that extend outward from middle plane 11 peripheries, blade support 1 has two groups, two groups of blade support 2 overlaids, blade 2 is fixed between the leg 12 of two groups of blade supports 1, as shown in Figure 3,4.Specifically:
as shown in Fig. 5,6,7: midplane 11 has the boss 110 protruded to the one side, and when two groups of blade support 1 overlaids, the boss 110 of two groups of midplanes 11 fits.The thickness of supposing leg 12 is Th, and the thickness of blade 2 is Tb, the protrusion height H=of boss 110 ((Tb+Th)/cos β-Th)/2.Because blade 2 is fixed on two groups of blade supports, 2 centres, make between two groups of legs 12 and reserved the space for stator blade 2, when middle plane 11 does not arrange boss 110, also there is the space with two groups of leg 12 same widths between two groups of midplanes 11, boss 110 is effectively filled up this space, make after two groups of blade support 1 overlaids in conjunction with tightr.
as shown in Figure 8: leg 12 has the stationary plane 120 for stator blade 2, offers several holes 121 for fixing with blade 2 on stationary plane 120, and blade 2 and leg 12 are fixed by hole 121 and rivet or screw.Because there is torsional angle β in the relative midplane 11 of leg 12, for not affecting on stationary plane 120, the setting that makes torsional angle β do not offer the better fixing of hole 121 and blade 2, position, 121Yan Yi hole, several holes center line 31 is symmetrical, and has a side-play amount O=(2H+Th between the torsional center line 20 at position, hole center line 31 and torsional angle β place) * sin β/2.
in addition, in the present embodiment: leg 12 is provided with four, and four legs 12 are evenly arranged in the periphery of midplane 11, and blade support 1 is one-body molded.When being installed, both blade supports 1 are carried out overlapping, fixing, blade 2 is clamped between two groups of legs 12, and is fixed and gets final product.
above-described embodiment is only explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. the propeller fan supporting structure of a two-sided clamping blade, it comprises a blade support, it is characterized in that: described blade support comprises the midplane that is connected with rotatingshaft, the some legs that extend outward from the periphery of described midplane, described blade support has two groups, two groups of described blade support overlaids, blade is fixed between the leg of two groups of described blade supports.
2. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 1 is characterized in that: described leg extends outward from described midplane after a torsional center line reverses.
3. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 2, it is characterized in that: described midplane has the boss protruded to the one side, when two groups of described blade support overlaids, the boss of two groups of described midplanes fits.
4. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 3, it is characterized in that: there is torsional angle β between described leg and midplane, the thickness of described leg is Th, the thickness of described blade is Tb, the protrusion height H=of described boss ((Tb+Th)/cos β-Th)/2.
5. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 1, it is characterized in that: described leg has the stationary plane for stator blade, offer several holes for fixing with described blade on described stationary plane, several described holes are symmetrical along position, a hole center line, and have a side-play amount O=(2H+Th between the torsional center line at described hole position center line and described torsional angle β place) * sin β/2.
6. a kind of propeller fan supporting structure of two-sided clamping blade according to claim 1 or 5, it is characterized in that: described blade and leg fix by rivet or screw.
7. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 1, it is characterized in that: described leg is provided with four, and four described legs are evenly arranged in the periphery of described midplane.
8. the propeller fan supporting structure of a kind of two-sided clamping blade according to claim 1, it is characterized in that: described blade support is one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320359881 CN203348132U (en) | 2013-06-21 | 2013-06-21 | Axial flow fan support structure clamping blades on two sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320359881 CN203348132U (en) | 2013-06-21 | 2013-06-21 | Axial flow fan support structure clamping blades on two sides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348132U true CN203348132U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320359881 Expired - Fee Related CN203348132U (en) | 2013-06-21 | 2013-06-21 | Axial flow fan support structure clamping blades on two sides |
Country Status (1)
| Country | Link |
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| CN (1) | CN203348132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362848A (en) * | 2013-06-21 | 2013-10-23 | 江苏富丽华通用设备有限公司 | Support structure capable of clamping vanes of axial flow fan from two sides |
-
2013
- 2013-06-21 CN CN 201320359881 patent/CN203348132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362848A (en) * | 2013-06-21 | 2013-10-23 | 江苏富丽华通用设备有限公司 | Support structure capable of clamping vanes of axial flow fan from two sides |
| CN103362848B (en) * | 2013-06-21 | 2015-09-30 | 江苏富丽华通用设备有限公司 | A kind of propeller fan supporting structure of two-sided clamping blade |
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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: 20131218 Termination date: 20160621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |