CN202326415U - Impeller of positive/negative rotating axial flow fan - Google Patents
Impeller of positive/negative rotating axial flow fan Download PDFInfo
- Publication number
- CN202326415U CN202326415U CN2011204747913U CN201120474791U CN202326415U CN 202326415 U CN202326415 U CN 202326415U CN 2011204747913 U CN2011204747913 U CN 2011204747913U CN 201120474791 U CN201120474791 U CN 201120474791U CN 202326415 U CN202326415 U CN 202326415U
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- blade
- positive
- blades
- impeller
- negative
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Abstract
The utility model discloses an impeller of a positive/negative rotating axial flow fan, which includes a hub and a plurality of blades mounted on the hub, wherein the blade include blade stalks and consist of positive blades and negative blades; and after rotating for 180 degrees by taking the blade stalks as the axes, the negative blades are identical with the positive blades in shapes and sizes. By alternately mounting the negative blades and the positive blades, the pneumatic performances are the same under the circumstances that the impeller positively/negatively rotates, and as a result, the same characteristics of the positive/negative rotating are achieved. The impeller of the positive/negative rotating axial flow fan dispenses with the symmetrical wing type and the flat plate wing type adopted by the existing two-way axial flow fan, not only solves the difficulty brought by the manufacturing process of the symmetric wing type fan, and realizes the positive/negative rotation of the axial flow fan without increasing the dies for manufacturing the fans and the machining difficulty, but also improves the efficiency compared with the flat plate wing type.
Description
Technical field
The utility model relates to a kind of impeller of clockwise and anticlockwise axial-flow blower, it is applicable to axial-flow blower, belongs to blower fan and ventilating engineering technical field.
Background technique
According to the development trend of present domestic various ventilating engineerings, axial-flow blower is owing to itself having advantages such as simple in structure, easy for installation, so the scope of using more and more widely.In view of axial-flow blower constantly is applied to the ventilation and the cooling system of all trades and professions, the compact more and higher requirement of efficient of structure has been proposed for the clockwise and anticlockwise of axial-flow blower.
The clockwise and anticlockwise impeller of existing axial-flow blower generally adopts symmetrical airfoil or flat profile to solve.Adopt symmetrical airfoil to increase mould and difficulty of processing that blower fan is made, and adopt flat profile, with the efficient that reduces axial-flow blower greatly.
The model utility content
To above-mentioned situation; The problem that the utility model quasi-solution is determined provides a kind of clockwise and anticlockwise axial flow fan vane wheel higher with respect to the flat profile utilization efficiency; Simultaneously, under the condition of mould that does not increase the blower fan making and difficulty of processing, realize the clockwise and anticlockwise of axial-flow blower.
For achieving the above object; The utility model adopts following technological scheme: a kind of impeller of clockwise and anticlockwise axial-flow blower; It comprises wheel hub and is installed in several blades on the wheel hub, and said blade comprises petiole, and said blade comprises forward blade and backward vane; After said backward vane was a Rotate 180 degree with petiole, its shape size was fully consistent with the forward blade.
The said blade quantity that is installed on the wheel hub is preferably even number, and the quantity of said forward blade and backward vane blade equates that said forward blade and backward vane are spaced.
The wing blades that said forward blade is the one-way shaft flow fan or etc. thick circular plate type blade.
Adopt such scheme, the impeller of the clockwise and anticlockwise axial-flow blower of the utility model, through the backward vane of alternately installing be and the forward blade, make impeller under the situation of forward and reverse, its aeroperformance state is identical, thereby reaches the identical characteristic of clockwise and anticlockwise performance.The utility model clockwise and anticlockwise axial flow fan vane wheel has been abandoned symmetrical airfoil and flat profile that original two-way axial-flow blower adopts.Both solved and adopted the difficulty of bringing in the symmetrical airfoil fan working process, under the condition of mould that does not increase the blower fan making and difficulty of processing, realized the clockwise and anticlockwise of axial-flow blower.Again than adopting flat profile to improve efficient.
Description of drawings
Fig. 1 is the structural representation of the impeller of the utility model clockwise and anticlockwise axial-flow blower;
Fig. 2 is the radial development figure of impeller.
Among the figure: 1-wheel hub, 2-forward blade, 3-backward vane, 4-petiole.
Embodiment
Like Fig. 1, shown in Figure 2; The impeller of the utility model clockwise and anticlockwise axial-flow blower; It comprises wheel hub 1 and is installed in several blades on the wheel hub 1, and said blade comprises petiole 4, and said blade comprises forward blade 2 and backward vane 3; After said backward vane 3 served as axle Rotate 180 degree with petiole 4, its shape size was fully consistent with forward blade 2.Just described backward vane is and the identical blade of forward blade only to be that setting angle differs 180 degree.
As preferably, the impeller blade quantity of the utility model clockwise and anticlockwise axial-flow blower is even number, and present embodiment is an example with six blades.The quantity of said forward blade 2 and backward vane 3 blades equates promptly have three forward blades 2 and three backward vanes 3.Said forward blade 2 is spaced with backward vane 3.
The wing blades that said forward blade 2 is the one-way shaft flow fan or etc. thick circular plate type blade.
Blade through alternately installing makes impeller under the situation of forward and reverse, and its aeroperformance state is identical, thereby reaches the identical characteristic of clockwise and anticlockwise performance.Simultaneously do not increase mould and processing cost in the axial-flow blower working process, kept higher efficient again.
Claims (3)
1. the impeller of a clockwise and anticlockwise axial-flow blower; It comprises wheel hub (1) and is installed in several blades on the wheel hub (1); Said blade comprises petiole (4); Said blade comprises forward blade (2) and backward vane (3), and after said backward vane (3) served as axle Rotate 180 degree with petiole (4), its shape size was fully consistent with forward blade (2).
2. the impeller of clockwise and anticlockwise axial-flow blower according to claim 1; It is characterized in that the said blade quantity that is installed on the wheel hub (1) is an even number; The quantity of said forward blade (2) and backward vane (3) blade equates that said forward blade (2) is spaced with backward vane (3).
3. the impeller of clockwise and anticlockwise axial-flow blower according to claim 1 and 2, said forward blade (2) be the one-way shaft flow fan wing blades or etc. thick circular plate type blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204747913U CN202326415U (en) | 2011-11-25 | 2011-11-25 | Impeller of positive/negative rotating axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204747913U CN202326415U (en) | 2011-11-25 | 2011-11-25 | Impeller of positive/negative rotating axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326415U true CN202326415U (en) | 2012-07-11 |
Family
ID=46438396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204747913U Expired - Fee Related CN202326415U (en) | 2011-11-25 | 2011-11-25 | Impeller of positive/negative rotating axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197026A (en) * | 2023-05-05 | 2023-06-02 | 哈尔滨纳诺机械设备有限公司 | Radial pump side suction low fluctuation pressure crusher |
-
2011
- 2011-11-25 CN CN2011204747913U patent/CN202326415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197026A (en) * | 2023-05-05 | 2023-06-02 | 哈尔滨纳诺机械设备有限公司 | Radial pump side suction low fluctuation pressure crusher |
| CN116197026B (en) * | 2023-05-05 | 2023-07-14 | 哈尔滨纳诺机械设备有限公司 | Radial pump side suction low fluctuation pressure crusher |
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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: 20120711 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |