CN202091264U - Installing structure for blades of outer stator axial flow fan - Google Patents
Installing structure for blades of outer stator axial flow fan Download PDFInfo
- Publication number
- CN202091264U CN202091264U CN2011201690951U CN201120169095U CN202091264U CN 202091264 U CN202091264 U CN 202091264U CN 2011201690951 U CN2011201690951 U CN 2011201690951U CN 201120169095 U CN201120169095 U CN 201120169095U CN 202091264 U CN202091264 U CN 202091264U
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- Prior art keywords
- blade
- groove
- positioning groove
- grooves
- flow fan
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- Expired - Fee Related
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Abstract
The utility model discloses an installing structure for blades of an outer stator axial flow fan. The installing structure for blade of the outer stator axial flow fan comprises a rotor, wherein the shell of the rotor is fixedly provided with a flange; the flange is fixedly provided with a hub disc; the hub disc is formed by combining an upper hub disc and a lower hub disc in a matching way; the upper hub disc is provided with upper circular-arc grooves; the lower hub disc is provided with lower circular-arc grooves; blade stalks of the blades are installed in the upper grooves and the lower grooves combined in the matching way; the inner walls of the upper grooves and the lower grooves are also respectively provided with at least one positioning groove; the blade stalks of the blades are provided with at least one blade positioning groove; and at least one pair of positioning grooves and a blade positioning groove are provided with a stop pin. In the installing structure, the blade angle can be conveniently adjusted, and the purpose that the axial flow fan of the same type can achieve different fan performance indexes can be realized.
Description
Technical field
The utility model relates to the outer rotor shaft flow fan, refers more particularly to the mounting structure of external rotor axial-flow fan blade.
Background technique
The outer rotor shaft flow fan has beautiful shape, advantage that installation volume is little, is widely used in the multiple electric equipment that is used for ventilation and heat of air-conditioning and other.For being fit to various application area, need the blower fan product of multiple different performance index.Blower fan manufacturer realizes the different performance index of blower fan usually by the adjusting vane setting angle.Therefore, the convenient degree of the angular positioning precision of blade and angular adjustment is the key issue of blower fan assembling.
Blade installation structure commonly used at present mainly contains three kinds: the one, blade directly is welded on the rotor shell; The 2nd, with blade and rotor case integral die-cast; The 3rd, fixing blade mounting arrangement is set on the rotor shell.Above-mentioned first kind of mounting structure has certain restriction to blade material, uses the steel plate forming blade usually, and such blade can not be made wing blade, and fan efficiency is generally lower; Second kind of structure blade and rotor shell integral die-cast, blade angle can not be adjusted, and die cost is high; The third structure can have very big selection space to blade material and blade shape, but maximum shortcoming is that blade angle can not be adjusted.
The model utility content
The technical problem of the required solution of the utility model is: a kind of mounting structure that can adjust the lower external rotor axial-flow fan blade of blade angle, fan efficiency height and cost of production very easily will be provided.
For addressing the above problem, the technical solution adopted in the utility model is: the mounting structure of external rotor axial-flow fan blade, comprise: rotor, on the shell of rotor, be set with flange, be installed with wheel hub plate on the flange, described wheel hub plate is involuted by last wheel hub plate and lower whorl hub, last wheel hub plate is provided with the circular arc upper groove, the lower whorl hub is provided with the circular arc low groove, the petiole of blade be installed in after involutory on, in the low groove, on the inwall of upper groove and low groove, also be provided with at least one positioning groove, the petiole of blade is provided with at least one blade positioning groove, is provided with locating stud in positioning groove after at least one pair of is involutory mutually and the blade positioning groove.
As further improvement of the utility model, in upper groove and low groove, be respectively arranged with four positioning grooves, the petiole of blade is provided with eight blade positioning grooves.
The beneficial effects of the utility model: the blade positioning groove is being set and on the blade after on the wheel hub plate positioning groove being set, only need the adjusting vane positioning groove make it with wheel hub plate on certain positioning groove involutory, and in the groove after involutory locating stud is set, can finish the adjustment of blade angle, this kind regulative mode is convenient, reliable; A kind of blower fan of model can reach different performance index by changing blade angle, satisfies the different needs that use, and described mounting structure is simple, and cost of production is low, is fit to industrial mass manufacture.
Description of drawings
Fig. 1 is the decomposition texture schematic representation of the mounting structure of external rotor axial-flow fan blade described in the utility model;
Fig. 2 is the structural representation after blade shown in Fig. 1 and the fixed installation of upper and lower wheel hub plate.
Among Fig. 1～Fig. 2: 1, rotor, 2, flange, 31, go up wheel hub plate, 311, the circular arc upper groove, 32 lower whorl hubs, 321, circular arc low groove, 4, blade, 41, petiole, 5, bolt, 6, go up positioning groove, 7, positioning groove down, 8, the blade positioning groove, 9, locating stud
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1:
As Fig. 1, shown in Figure 2, the mounting structure of external rotor axial-flow fan blade, comprise: rotor 1, integral die-cast has flange 2 on the shell of rotor 1, wheel hub plate is fixed on the flange 2 by bolt 5, described wheel hub plate is involuted by last wheel hub plate 31 and lower whorl hub 32, last wheel hub plate 31 is provided with circular arc upper groove 311, lower whorl hub 32 is provided with circular arc low groove 321, the petiole 41 of blade 4 be installed in after involutory on, in the low groove, the inwall of upper groove 311 is provided with positioning groove 6 on four, the inwall of low groove 321 is provided with four following positioning grooves 7, the petiole 41 of blade 4 is provided with eight blade positioning grooves 8, in the present embodiment, a pair of after mutually involutory on be provided with locating stud 9 in positioning groove 6 and the blade positioning groove 8.
The mounting structure of above-mentioned external rotor axial-flow fan blade, by on the inwall of the circular arc low groove 321 of the inwall of the circular arc upper groove 311 of last wheel hub plate 31 and lower whorl hub 32, being respectively arranged with positioning groove 6 and four following positioning grooves 7 on four, and the petiole 41 of blade 4 is provided with eight blade positioning grooves 8, arbitrary blade positioning groove 8 is with arbitrary upward positioning groove 6 or positioning groove 7 can be involutory down, it is involutory with different last positioning groove 6 or following positioning groove 7 to adjust different blade positioning grooves 8, and locating stud 9 is set in the groove after involutory, just can adjust easily and the setting angle of definite blade.In actual production, the quantity and the position of positioning groove 7 can be determined according to actual needs under blade positioning groove 8 and last positioning groove 6 reached, directly select corresponding blade positioning groove 8 and last positioning groove 6 or following positioning groove 7 during installation as requested, make both involutory, and placement positioning pin 9 in the groove after involutory, then lower whorl hub 32 and last wheel hub plate 31 are clamped petiole 41 together and be fixed on the flange 2 and get final product.
The utility model has overcome the shortcoming that traditional blade installation structure can't conveniently be adjusted blade angle, the axial-flow blower of having realized same model can be realized the purpose of different fan performance indexs by the setting angle that changes blade, and the adjustment mode is convenient, reliable.The utility model is simple in structure, blower fan installation efficiency height, and cost of production is low, is fit to industrial mass manufacture.
Claims (2)
1. the mounting structure of external rotor axial-flow fan blade, comprise: rotor, it is characterized in that: on the shell of rotor, be set with flange, be installed with wheel hub plate on the flange, described wheel hub plate is involuted by last wheel hub plate and lower whorl hub, last wheel hub plate is provided with the circular arc upper groove, the lower whorl hub is provided with the circular arc low groove, the petiole of blade be installed in after involutory on, in the low groove, on the inwall of upper groove and low groove, also be provided with at least one positioning groove, the petiole of blade is provided with at least one blade positioning groove, is provided with locating stud in positioning groove after at least one pair of is involutory mutually and the blade positioning groove.
2. according to the mounting structure of the described external rotor axial-flow fan blade of claim 1, it is characterized in that: be respectively arranged with four positioning grooves in upper groove and low groove, the petiole of blade is provided with eight blade positioning grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201690951U CN202091264U (en) | 2011-05-24 | 2011-05-24 | Installing structure for blades of outer stator axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201690951U CN202091264U (en) | 2011-05-24 | 2011-05-24 | Installing structure for blades of outer stator axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091264U true CN202091264U (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201690951U Expired - Fee Related CN202091264U (en) | 2011-05-24 | 2011-05-24 | Installing structure for blades of outer stator axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168693A (en) * | 2011-05-24 | 2011-08-31 | 江苏富丽华通用设备有限公司 | Mounting structure of outer rotor axial flow fan blade |
| CN107208648A (en) * | 2014-12-17 | 2017-09-26 | 施乐百有限公司 | Axial fan |
-
2011
- 2011-05-24 CN CN2011201690951U patent/CN202091264U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168693A (en) * | 2011-05-24 | 2011-08-31 | 江苏富丽华通用设备有限公司 | Mounting structure of outer rotor axial flow fan blade |
| CN107208648A (en) * | 2014-12-17 | 2017-09-26 | 施乐百有限公司 | Axial fan |
| CN107208648B (en) * | 2014-12-17 | 2019-07-19 | 施乐百有限公司 | Axial ventilator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20170524 |