CN102168693A - Mounting structure of outer rotor axial flow fan blade - Google Patents
Mounting structure of outer rotor axial flow fan blade Download PDFInfo
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- CN102168693A CN102168693A CN2011101361770A CN201110136177A CN102168693A CN 102168693 A CN102168693 A CN 102168693A CN 2011101361770 A CN2011101361770 A CN 2011101361770A CN 201110136177 A CN201110136177 A CN 201110136177A CN 102168693 A CN102168693 A CN 102168693A
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- groove
- positioning groove
- flow fan
- positioning
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Abstract
The invention discloses a mounting structure of an outer rotor axial flow fan blade, comprising 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 the involution of an upper hub disc and a lower hub disc; the upper hub disc is provided with an arc upper groove; the lower hub disc is provided with an arc lower groove; the shank of the blade is installed in the upper and the lower groove after involution; the inner walls of the upper groove and the lower groove are also provided with at least one positioning groove; the shank of the blade is provided with at least one blade positioning groove; and a positioning pin is arranged in at least one pair of positioning groove and blade positioning groove after mutual involution. With the blade angle conveniently adjusted, the purpose that the axial flow fan of a model achieves the performance indexes of different fans is realized.
Description
Technical field
The present invention relates to the outer rotor shaft flow fan, refer 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.
Summary of the invention
The technical problem of solution required for the present invention 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 used in the present invention 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, and 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 going up after involutory,
In the low groove, also be provided with at least one positioning groove on the inwall of upper groove and low 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 a further improvement on the present invention, be respectively arranged with four positioning grooves in upper groove and low groove, the petiole of blade is provided with eight blade positioning grooves.
Beneficial effect of the present invention: 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 of the present invention;
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 present invention 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 present invention has overcome the shortcoming that traditional blade installation structure can't conveniently be adjusted blade angle, and 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 present invention 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 |
|---|---|---|---|
| CN2011101361770A CN102168693A (en) | 2011-05-24 | 2011-05-24 | Mounting structure of outer rotor axial flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101361770A CN102168693A (en) | 2011-05-24 | 2011-05-24 | Mounting structure of outer rotor axial flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102168693A true CN102168693A (en) | 2011-08-31 |
Family
ID=44489974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101361770A Pending CN102168693A (en) | 2011-05-24 | 2011-05-24 | Mounting structure of outer rotor axial flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102168693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576152A (en) * | 2023-07-12 | 2023-08-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel fan blade fixing device and wind tunnel fan with adjustable blade mounting angle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129786A (en) * | 1990-11-08 | 1992-07-14 | United Technologies Corporation | Variable pitch pan blade retention arrangement |
| CN101368576A (en) * | 2007-08-15 | 2009-02-18 | 陈耀乾 | Impeller structure of ventilator |
| KR20090104254A (en) * | 2008-03-31 | 2009-10-06 | 정주라 | Ventilation fan |
| CN201671846U (en) * | 2010-04-26 | 2010-12-15 | 宁波龙泰电讯电机有限公司 | Axial flow fan |
| CN202091264U (en) * | 2011-05-24 | 2011-12-28 | 江苏富丽华通用设备有限公司 | Installing structure for blades of outer stator axial flow fan |
-
2011
- 2011-05-24 CN CN2011101361770A patent/CN102168693A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129786A (en) * | 1990-11-08 | 1992-07-14 | United Technologies Corporation | Variable pitch pan blade retention arrangement |
| CN101368576A (en) * | 2007-08-15 | 2009-02-18 | 陈耀乾 | Impeller structure of ventilator |
| KR20090104254A (en) * | 2008-03-31 | 2009-10-06 | 정주라 | Ventilation fan |
| CN201671846U (en) * | 2010-04-26 | 2010-12-15 | 宁波龙泰电讯电机有限公司 | Axial flow fan |
| CN202091264U (en) * | 2011-05-24 | 2011-12-28 | 江苏富丽华通用设备有限公司 | Installing structure for blades of outer stator axial flow fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576152A (en) * | 2023-07-12 | 2023-08-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel fan blade fixing device and wind tunnel fan with adjustable blade mounting angle |
| CN116576152B (en) * | 2023-07-12 | 2023-09-22 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel fan blade fixing device and wind tunnel fan with adjustable blade mounting angle |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110831 |