CN202560640U - Unidirectional type metro fan forging aluminum blade - Google Patents
Unidirectional type metro fan forging aluminum blade Download PDFInfo
- Publication number
- CN202560640U CN202560640U CN2012202516497U CN201220251649U CN202560640U CN 202560640 U CN202560640 U CN 202560640U CN 2012202516497 U CN2012202516497 U CN 2012202516497U CN 201220251649 U CN201220251649 U CN 201220251649U CN 202560640 U CN202560640 U CN 202560640U
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- CN
- China
- Prior art keywords
- blade
- fan
- forging aluminum
- unidirectional type
- unidirectional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a unidirectional type metro fan forging aluminum blade. Current unidirectional type metro fan blades are cast under low pressure, connection portions of blade bodies and blade disks are prone to produce cracks and are even broken after a long term operation, and the blades are generally low in efficiencies and narrow in efficient areas. The unidirectional type metro fan forging aluminum blade comprises a blade body and a blade disk and is characterized in that the blade is the forging aluminum blade, the blade profile of the blade body uses a unidirectional type wing profile, the center line of the blade body is a single arc, and a fan can only perform unidirectional operation. The unidirectional type metro fan forging aluminum blade is installed on a unidirectional type metro fan, the mechanical property of materials of the blade is improved, and particularly, defects inside a transition position of the blade body and the blade disk are obviously reduced so that the forging aluminum blade can still safely run when the forging aluminum blade bears large loads; and the blade is high in efficiency and wide in efficient areas.
Description
Technical field
The utility model relates to the parts of ventilation equipment, specifically a kind of one-way fashion underground fan wrought aluminium blade.
Background technique
Have now and be applied to the blade in subway, the big-and-middle-sized underground fan in tunnel, higher because of the linear velocity of draught fan impeller, the centrifugal force of generation is very big; Hundreds of thousands newton is arranged usually; Add the subway train wind that reverse driving produces that facings the wind and carry effect, cause blade sound stress to increase, present blade adopts low-pressure die casting mostly; Blade and leaf dish transition position wall unevenness are even; Be prone to produce shrinkage porosite, crystal grain is thick and manufacturing deficiency such as pore, blade and the leaf dish position that links is prone to crack after the long-time running, even ruptures.In addition, the efficient of blade is common lower and efficiently distinguish narrow.
The model utility content
The utility model technical problem to be solved is to overcome the defective that the position is prone to crack that links of blade and leaf dish in the existing blade, provides a kind of under sound stress greatly, can effectively guarantee the one-way fashion underground fan wrought aluminium blade of blower fan safe operation.
For this reason, the utility model adopts following technological scheme: one-way fashion underground fan wrought aluminium blade comprises blade and leaf dish; It is characterized in that; Described blade is the wrought aluminium blade, and the blade profile of blade adopts the one-way fashion wing blade, and the center line of blade is single circular arc; It is wide to have the high and efficient district of efficient, and blower fan can only unidirectionally turn round.The utility model is selected the wrought aluminium blade for use; Aluminium base tissue passes through behind the forging method heat processing and forming because metal deformation and crystallization again; Make original coarse grain and columnar grain become thinner, the of uniform size crystalline structure of crystal grain, make compacting and seam such as original segregation in the aluminium ingot, loose, pore, slag inclusion, its tissue becomes tightr; Improve the plasticity and the mechanical property of metal, but guaranteed the operation of blower fan long-term safety.
As further technological scheme: described leaf dish is through on the sidewall that is bolted to a flange-type wheel hub, and the established angle α of blade is 30～60 °.The leaf dish number that is installed on the flange-type wheel hub is 8～14.
The utility model is installed on the one-way fashion underground fan, because the blade material mechanical property improves, obviously reduces at blade and leaf dish transition position subsurface defect especially, when making the wrought aluminium blade receive big load, still can long-term safety move; Blade has the efficient height and efficiently distinguishes wide.The utility model can be widely used on the big-and-middle-sized one-way fashion underground fans such as subway, tunnel.
Below in conjunction with Figure of description and embodiment the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that the B of Fig. 1 is to view.
Fig. 3 is installed in the structural representation on the one-way fashion underground fan wheel hub for the utility model.
Fig. 4 is the stereogram of the utility model.
Embodiment
One-way fashion underground fan wrought aluminium blade shown in Fig. 1-4, described blade is the wrought aluminium blade, and it is made up of blade 1 and leaf dish 2, and the blade profile of blade 1 adopts the one-way fashion wing blade, and the center line of blade 1 is single circular arc.Leaf dish 2 is fixed on the flange-type wheel hub 4 through bolt 3, and blade installation angle α is 30～60 °.The leaf dish number that is installed on the flange-type wheel hub 4 is 8～14.
Claims (3)
1. one-way fashion underground fan wrought aluminium blade comprises blade (1) and leaf dish (2), it is characterized in that described blade is the wrought aluminium blade, and the blade profile of blade (1) adopts the one-way fashion wing blade, and the center line of blade (1) is single circular arc.
2. by the described one-way fashion underground fan of claim 1 wrought aluminium blade, it is characterized in that described leaf dish (2) is fixed on through bolt (3) on the sidewall of a flange-type wheel hub (4), the established angle α of blade is 30～60 °.
3. by the described one-way fashion underground fan of claim 2 wrought aluminium blade, it is characterized in that the leaf dish number that is installed on the flange-type wheel hub (4) is 8～14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202516497U CN202560640U (en) | 2012-05-28 | 2012-05-28 | Unidirectional type metro fan forging aluminum blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202516497U CN202560640U (en) | 2012-05-28 | 2012-05-28 | Unidirectional type metro fan forging aluminum blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560640U true CN202560640U (en) | 2012-11-28 |
Family
ID=47210301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202516497U Expired - Fee Related CN202560640U (en) | 2012-05-28 | 2012-05-28 | Unidirectional type metro fan forging aluminum blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI638101B (en) * | 2015-09-28 | 2018-10-11 | 北京圖正實驗室科技有限公司 | Bird wing-shaped high pressure axial fan blade and rotating axial flow fan thereof |
-
2012
- 2012-05-28 CN CN2012202516497U patent/CN202560640U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI638101B (en) * | 2015-09-28 | 2018-10-11 | 北京圖正實驗室科技有限公司 | Bird wing-shaped high pressure axial fan blade and rotating axial flow fan thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160620 Address after: 312300 Shangyu City, Shaoxing province people's Road West, No. Patentee after: ZHEJIANG SHANGFENG GAOKE SPECIAL FAN INDUSTRY CO., LTD. Address before: 312375 Shangyu Pu Economic Development Zone, Zhejiang, Shaoxing Patentee before: Shangfeng Industry Co., Ltd., Zhejiang Prov. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |