CN102322446A - Method for fixing blades of axial-flow ventilator - Google Patents
Method for fixing blades of axial-flow ventilator Download PDFInfo
- Publication number
- CN102322446A CN102322446A CN201110263314A CN201110263314A CN102322446A CN 102322446 A CN102322446 A CN 102322446A CN 201110263314 A CN201110263314 A CN 201110263314A CN 201110263314 A CN201110263314 A CN 201110263314A CN 102322446 A CN102322446 A CN 102322446A
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- wheel hub
- blade
- quadrant
- boss
- width
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Abstract
The invention relates to a method for fixing blades of an axial-flow ventilator. A sector body is connected at the root of each blade, lug bosses are arranged at the lower parts of the sector bodies, and the blades, the sector bodies and the lug bosses are connected into a whole through casting, welding, riveting or adhesive bonding and the like. The inner diameter of the sector bodies is equal to the outer diameter of a wheel hub; the arc length of each sector body is not more than the equant length of the circumference of the encircled sector bodies according to the number of the blades; the thickness of the lug bosses is equal to the spacing between two radial plates on the wheel hub; and the lug bosses can be embedded into the two radial plates. The sector bodies and the lug bosses are respectively fixed on hub rings and the radial plates of the wheel hub through fasteners, so that the blades are fixed on the wheel hub.
Description
Affiliated technical field
The invention belongs to field of fluid machinery, relate to a kind of Axial Fan Blades fixation method.
Background technique
Blower fan be the mechanical energy with rotation convert to gas pressure can with kinetic energy and general machinery equipment that gas delivery is gone out, propeller fan be the mechanical energy with rotation convert to gas pressure can with kinetic energy and with gas by axial introducing of blower fan and machinery from axially transferring out.Impeller is the critical component that ventilator is realized the mechanical energy conversion, is made up of blade and wheel hub.
When blade angle need not be adjusted, known blade fixed method on wheel hub had following several kinds usually:
(1) welding.Be about to blade and wheel hub and be welded into an integral body, this method is usually used in the fixing of metal circular arc plate blade profile blade.This method only just is suitable for when blade is identical with hub material or close, is difficult to weld together like aluminium alloy vane and low carbon steel wheel hub.In addition, this fixation method makes blade and wheel hub form an integral body, can not split, and when a blade damages, can only change whole impeller.
(2) casting.This method is that blade and wheel hub are cast as one, is usually used in the fixing of airfoil blade.This method only just is suitable for when blade is identical with hub material, and blade is as a whole with wheel hub, can not split, and a blade defectiveness or the then whole impeller of blade damage in service are scrapped in the manufacture process.
(3) riveted joint or bolt, screw connect.This method is that blade and wheel hub are directly linked together with rivet or bolt, screw, is usually used in the fixing of circular arc plate blade profile blade.This method only is applicable to the blade of circular arc plate blade profile.
Summary of the invention
In order to overcome the deficiency of the existing fixed way blade of propeller fan; The present invention provides a kind of Axial Fan Blades fixation method; This method can material is identical or different blade and wheel hub be fixed together, blade profile can be a circular arc plate, also can be airfoil.Applied widely, simple, easy characteristics of going that this method has.
The present invention solves the technological scheme that its problem adopts: connecting a quadrant at each root of blade, the quadrant bottom has boss, and blade and quadrant and boss thereof link into an integrated entity through casting or welding, riveted joint, mode such as bonding.The internal diameter of quadrant equates that with the wheel hub external diameter arc length of quadrant is no more than the length of its circumference by number of blade five equilibrium, and the spacing of two width of cloth versions equates that boss can embed between two width of cloth versions on the thickness of boss and the wheel hub.With fastening piece quadrant and its boss are fixed on the wheel hub, thus with vanes fixed on wheel hub.
The invention has the beneficial effects as follows, the detachable and single replacing of blade, cast blade such as defectiveness are only scrapped this blade, and whole impeller is scrapped, and in the ventilator running, blade only needs to change the blade that damages if any damage, need not change whole impeller; Blade material can be different with wheel hub, thereby wheel hub can select the lower material of price for use, reduced product cost; Blade material density can be littler than hub material density, and the centrifugal force when having reduced the impeller rotation has improved the Safety performance when impeller runs up.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the impeller plan view.
Fig. 2 is the impeller left view.
Fig. 3 is the wheel hub plan view.
Fig. 4 is the wheel hub left view.
Fig. 5 is the fit plan view of vane group.
Fig. 6 is the fit left view of vane group.
Fig. 7 is the fit plan view of vane group.
Among the figure: the 1-vane group is fit, 2-wheel hub, 3-bolt, 4-nut, 5-packing ring, 6-bolt, 7-nut, 8-packing ring, 9-width of cloth version, 10-reel, 11-hub circle, 12-width of cloth version, 13-hub circle, 14-blade, 15-quadrant, 16-boss.
Embodiment
The circular arc internal diameter of quadrant 15, width equate with wheel hub 2 external diameters, width respectively; The arc length of quadrant is less than or equal to the length of circumference by number of blade five equilibrium; The thickness of boss 16 equates that with the spacing of width of cloth version 9, width of cloth version 12 boss 16 can embed between width of cloth version 9, the width of cloth version 12.The external diameter of hub circle 11, hub circle 13 equates.
On the corresponding position of the quadrant of blade 14 both sides 15 and hub circle 11, hub circle 13, be drilled with and be fit to the unthreaded hole that bolt 6 passes, after bolt 6 passes from this hole, cover upper gasket 8, fastening with nut 7.On the corresponding position of the boss 16 of vane group fit 1 and width of cloth version 9, width of cloth version 12, be drilled with and be fit to the unthreaded hole that bolt 3 passes, after bolt 3 passes from this hole, cover upper gasket 5, fastening with nut 4.Referring to Fig. 3-7.After all the vane group zoarium fixes, the impeller assembled.Unclamp bolt 3, nut 4, packing ring 5, bolt 6, nut 7, packing ring 8 can be pulled down vane group zoarium 1, change blade.
What need last explanation is; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. Axial Fan Blades fixation method; It is characterized in that: connecting a quadrant at each root of blade; The quadrant bottom has boss, and blade and quadrant and boss link into an integrated entity through casting or welding, riveted joint, mode such as bonding, and it is fit to form vane group; With fastening piece the vane group zoarium is fixed on the wheel hub, thus with vanes fixed on wheel hub.
2. vane group according to claim 1 is fit; It is characterized in that: the internal diameter of quadrant and wheel hub external diameter etc.; The arc length of quadrant is no more than the length of its circumference by number of blade five equilibrium, and the spacing of two width of cloth versions equates that boss can embed between two width of cloth versions on the thickness of boss and the wheel hub.
3. vane group according to claim 1 and 2 is fit, it is characterized in that: quadrant is fixed on the hub circle of wheel hub through fastening piece, boss is fixed through the width of cloth version of fastening piece and wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110263314A CN102322446A (en) | 2011-08-30 | 2011-08-30 | Method for fixing blades of axial-flow ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110263314A CN102322446A (en) | 2011-08-30 | 2011-08-30 | Method for fixing blades of axial-flow ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322446A true CN102322446A (en) | 2012-01-18 |
Family
ID=45450251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110263314A Pending CN102322446A (en) | 2011-08-30 | 2011-08-30 | Method for fixing blades of axial-flow ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322446A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673085A (en) * | 2016-04-06 | 2016-06-15 | 济南大学 | Dovetail-joggled combined type impeller structure |
| CN111237253A (en) * | 2019-11-30 | 2020-06-05 | 惠阳航空螺旋桨有限责任公司 | Anti-tearing connecting structure for blade body and blade root of fan blade |
| JP2020139498A (en) * | 2019-02-22 | 2020-09-03 | Ntn株式会社 | Water turbine blade of hydroelectric power generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003531342A (en) * | 2000-04-17 | 2003-10-21 | ハウデン・パワー・アクティーゼルスカブ | Axial fan impeller |
| GB2390647A (en) * | 2002-05-03 | 2004-01-14 | Truflo Air Movement Ltd | Mounting blades in axial flow fan impeller |
| CN101358611A (en) * | 2007-07-31 | 2009-02-04 | 罗伯特·安迪阿多·莫西维兹 | Axial flow fan wheel-hub contour connection system and axial flow fan with the connection system |
| CN201554696U (en) * | 2009-09-18 | 2010-08-18 | 上海风盟通风设备有限公司 | Fan blade combined structure |
| CN201779064U (en) * | 2010-01-08 | 2011-03-30 | 黄玲萍 | Energy-saving wing type axial flow fan |
| CN201916247U (en) * | 2010-12-23 | 2011-08-03 | 西北工业大学 | Axial-flow blower impeller by utilizing assembly blade wheel disk |
-
2011
- 2011-08-30 CN CN201110263314A patent/CN102322446A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003531342A (en) * | 2000-04-17 | 2003-10-21 | ハウデン・パワー・アクティーゼルスカブ | Axial fan impeller |
| GB2390647A (en) * | 2002-05-03 | 2004-01-14 | Truflo Air Movement Ltd | Mounting blades in axial flow fan impeller |
| CN101358611A (en) * | 2007-07-31 | 2009-02-04 | 罗伯特·安迪阿多·莫西维兹 | Axial flow fan wheel-hub contour connection system and axial flow fan with the connection system |
| CN201554696U (en) * | 2009-09-18 | 2010-08-18 | 上海风盟通风设备有限公司 | Fan blade combined structure |
| CN201779064U (en) * | 2010-01-08 | 2011-03-30 | 黄玲萍 | Energy-saving wing type axial flow fan |
| CN201916247U (en) * | 2010-12-23 | 2011-08-03 | 西北工业大学 | Axial-flow blower impeller by utilizing assembly blade wheel disk |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673085A (en) * | 2016-04-06 | 2016-06-15 | 济南大学 | Dovetail-joggled combined type impeller structure |
| JP2020139498A (en) * | 2019-02-22 | 2020-09-03 | Ntn株式会社 | Water turbine blade of hydroelectric power generator |
| CN111237253A (en) * | 2019-11-30 | 2020-06-05 | 惠阳航空螺旋桨有限责任公司 | Anti-tearing connecting structure for blade body and blade root of fan blade |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |