CN202646150U - Fan - Google Patents
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- Publication number
- CN202646150U CN202646150U CN 201220334410 CN201220334410U CN202646150U CN 202646150 U CN202646150 U CN 202646150U CN 201220334410 CN201220334410 CN 201220334410 CN 201220334410 U CN201220334410 U CN 201220334410U CN 202646150 U CN202646150 U CN 202646150U
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- Prior art keywords
- hub body
- hub
- blade
- blower fan
- vanes
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- Expired - Fee Related
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Abstract
The utility model discloses a fan which comprises an air tube, an annular hub arranged in the air tube and at least three vanes arranged on the annular hub. The annular hub comprises a hub body and a shaft seat arranged at the center of the hub body, and the shaft seat is connected with the hub body through a connection rod. A first end cover and a second end cover are respectively arranged at the front end and the back end of the hub body, and the first end cover, the second end cover, the shaft seat and the hub body form a closed cavity. A second vane forms at the root portion of the leeward face of each valve, and the root portions of the second vanes are connected with the outer wall of the annular hub. The fan improves durability without affecting impeller performance due to the fact that the second vanes are arranged on the root portions of the vanes, so that the vanes cannot be deformed or broken under impact of high air pressure, large air quantity and high temperature.
Description
Technical field
The utility model relates to a kind of blower fan, especially relates to a kind of heated air circulation axial fan.
Background technique
Impeller is one of critical piece of axial-flow heat air circulation fan, can realize the agitating function of hot blast, and effectively part ground improves the uniformity of temperature in the industrial heat treatment furnace and the quality of heat treated part.Distortion in use often appears in the blade of most blower fan, and especially under the impact of high blast, Wind Volume, high furnace temperature, the phenomenon of fracture has appearred in blade; And because wheel hub is commonly Pierced structure, and the dust in the gas and silt can accumulate in the wheel hub, the balance when destroying vane rotary causes the vibrations of blower fan, has increased the noise of blower fan, has affected the efficient of blower fan.
The model utility content
The utility model is in order to overcome the deficiencies in the prior art, and a kind of not fragile, efficient is high, noise is little blower fan is provided.
To achieve these goals, the utility model is by the following technical solutions: a kind of blower fan, comprise air duct, be located at the annular wheel hub in the air duct and be located at least 3 blades on the annular wheel hub, described annular wheel hub comprises hub body and is arranged on the axle bed at hub body center, links to each other by connecting rod between axle bed and the hub body; The front end and back end of described hub body is respectively equipped with the first end cap and the second end cap, and described the first end cap, the second end cap, axle bed and hub body form the cavity of a sealing; The root of the lee face of described every blade is respectively equipped with the second blade, and the root of the second blade is connected with the outer wall of described annular wheel hub.By the second blade is set at root of blade, on the basis that does not affect impeller performance, strengthened the serviceability of blade, make blade under the impact of high blast, Wind Volume, high temperature, the phenomenon of deformation and fracture can not appear; In addition, wheel hub adopts full-closed structure, has avoided dust and silt etc. to accumulate in the wheel hub, thereby has made impeller can keep when rotated balance, has improved the efficient of blower fan, has lowered noise.
On the other hand, the air intake of described air duct is circular, and outlet air end is square.Be conducive to the circulation of air-flow, improved the working efficiency of blower fan.
On the other hand, described the second blade is provided with two air holes.There is certain gap between blade and the second blade, when the air expanded by heating in the gap, can gives vent to anger by this air hole, prevent from getting loose because of gas expansion between the second blade and the blade.
On the other hand, be evenly equipped with the wheel hub air hole on the outer wall of described hub body.When the air expanded by heating in the cavity of sealing, can give vent to anger to prevent the wheel hub distortion by this wheel hub air hole.
On the other hand, the quantity of described blade is 8.
In sum, the utlity model has following advantage: the intensity of the blade of this blower fan is high, at the mal-condition such as high blast, Wind Volume, high temperature and indeformable, cracking; Efficient is high, noise is little.
Description of drawings
Fig. 1 is Facad structure schematic diagram of the present utility model.
Fig. 2 is side structure schematic diagram of the present utility model.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all should belong to the scope of the utility model protection.
As shown in Figure 1 and Figure 2, a kind of blower fan, comprise air duct 1, be located at the annular wheel hub 3 in the air duct and be located at 8 blades 4 on the annular wheel hub, annular wheel hub 3 comprises hub body 31 and is arranged on the axle bed 32 at hub body 31 centers, links to each other by connecting rod 33 between axle bed 32 and the hub body 31; The front end and back end of hub body 31 is respectively equipped with the first end cap 6 and the second end cap 7, and described the first end cap 6, the second end cap 7, axle bed 32 and hub body 31 form the cavity of a sealing; The root that the root of the lee face of described every blade 4 is respectively equipped with the second blade 2, the second blades 2 is connected with the outer wall of described annular wheel hub 3.The air intake 11 of air duct 1 is circular, and outlet air end 12 is square.The second blade 2 is provided with two air holes 21.Be evenly equipped with wheel hub air hole 311 on the outer wall of hub body 31.The intensity of the blade of this blower fan is high, at the mal-condition such as high blast, Wind Volume, high temperature and indeformable, cracking; Efficient is high, noise is little.
Claims (5)
1. blower fan, comprise air duct (1), be located at the annular wheel hub (3) in the air duct and be located at least 3 blades (4) on the annular wheel hub, it is characterized in that: described annular wheel hub (3) comprises hub body (31) and is arranged on the axle bed (32) at hub body (31) center, links to each other by connecting rod (33) between axle bed (32) and the hub body (31); The front end and back end of described hub body (31) is respectively equipped with the first end cap (6) and the second end cap (7), and described the first end cap (6), the second end cap (7), axle bed (32) and hub body (31) form the cavity of a sealing; The root of the lee face of described every blade (4) is respectively equipped with the second blade (2), and the root of the second blade (2) is connected with the outer wall of described annular wheel hub (3).
2. blower fan according to claim 1 is characterized in that: the air intake (11) of described air duct (1) is for circular, and outlet air end (12) is square.
3. blower fan according to claim 2, it is characterized in that: described the second blade (2) is provided with two air holes (21).
4. blower fan according to claim 3 is characterized in that: be evenly equipped with wheel hub air hole (311) on the outer wall of described hub body (31).
5. blower fan according to claim 4, it is characterized in that: the quantity of described blade (4) is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334410 CN202646150U (en) | 2012-07-12 | 2012-07-12 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334410 CN202646150U (en) | 2012-07-12 | 2012-07-12 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646150U true CN202646150U (en) | 2013-01-02 |
Family
ID=47415267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334410 Expired - Fee Related CN202646150U (en) | 2012-07-12 | 2012-07-12 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646150U (en) |
-
2012
- 2012-07-12 CN CN 201220334410 patent/CN202646150U/en not_active Expired - Fee Related
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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: 20130102 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |