CN101832285B - Fan impeller for cooling - Google Patents
Fan impeller for cooling Download PDFInfo
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- CN101832285B CN101832285B CN201010165533.7A CN201010165533A CN101832285B CN 101832285 B CN101832285 B CN 101832285B CN 201010165533 A CN201010165533 A CN 201010165533A CN 101832285 B CN101832285 B CN 101832285B
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- blade
- petiole
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- installation seat
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Abstract
The invention discloses a kind of fan impeller for cooling, this impeller comprises wheel hub and several blade, the surrounding of wheel hub is evenly provided with blades installation seat, and the petiole place of each blade is provided with swing connected element, and carries out swing with corresponding blades installation seat be connected by swinging connected element.Connect owing to adopting to swing, when blower fan operates, blade can carry out waving and shimmy, thus eliminates the moment of flexure in petiole Vertical direction, reduces its flexural stress, avoids petiole impaired, be conducive to the effective application realizing major diameter impeller.And there is the advantage being convenient to adjust blade angle, thus can carry out pre-setting established angle according to client's usage requirement before dispatching from the factory, make in-site installation become convenient, quick.
Description
Technical field
The present invention relates to draught fan impeller, more particularly, relate to a kind of fan impeller for cooling.
Background technique
At present, draught fan impeller 100 structure of the cooling tower that market generally uses or air cooling device as shown in Figure 1 and Figure 2, comprise circular hub 110, several blade fixed base 120 and blade 130, fixed base 120 is evenly located on wheel hub 110 1 end face, to be held tightly by its petiole 131 be fixed on corresponding fixed base 120 by bolt or jump ring.This blade 130 fixed structure belongs to beam type, and when operation, blade 130 cannot produce to be waved and shimmy, thus may there is vertical and horizontal bending moment greatly at petiole 131 place, therefore higher to the requirement of strength of petiole 131.But, for the blade 130 being formed by extrusion and tension at present, (as petiole employing is hollow steel pipe for the manufacturability special due to it and structural feature, and diameter of steel tube is relatively little, bending resistance is limited), therefore easily damaged by Moment Influence, seriously constrain the application of major diameter impeller, thus become the bottleneck of large fan research and development.In addition, adopt this means of fixation, the established angle of blade 130 can only adjust in erecting bed, and must check blade tip height, therefore gives the installation of client, safeguards and bring inconvenience.
Summary of the invention
For the above-mentioned shortcoming existed in prior art, the object of this invention is to provide a kind of fan impeller for cooling, this impeller can eliminate the moment of flexure that petiole place produces, and avoids petiole impaired, thus can be applicable to large fan.
For achieving the above object, the present invention adopts following technological scheme:
This fan impeller for cooling comprises wheel hub and several blade, and the surrounding of described wheel hub is evenly provided with blades installation seat, and the petiole place of each blade is provided with swing connected element, and carries out swing with corresponding blades installation seat be connected by swinging connected element.
Radial direction and the wheel hub of described each blades installation seat are connected and fixed, and axially have pin-and-hole; Described swing connected element comprises mounting flange, U-shaped support and pin, and mounting flange is located on petiole; U-shaped support one end and Flange joint are fixed, and U-shaped end passes pin-and-hole and blades installation seat pin-connect by pin.
Described petiole end is provided with a flange, and described mounting flange is sheathed on petiole, and is connected and the flange that is fixedly clamped with U-shaped support one end by stud bolt.
The axial both ends of the surface of described blades installation seat are respectively equipped with limiting stopper, and limiting stopper is positioned at below pin-and-hole.
Also be provided with resilient sleeve in described pin-and-hole, described pin is passed resilient sleeve and is fixed by nut.
In technique scheme, fan impeller for cooling of the present invention comprises wheel hub and several blade, the surrounding of wheel hub is evenly provided with blades installation seat, and the petiole place of each blade is provided with swing connected element, and carries out swing with corresponding blades installation seat be connected by swinging connected element.Connect owing to adopting to swing, when blower fan operates, blade can carry out waving and shimmy, thus eliminates the moment of flexure in petiole Vertical direction, reduces its flexural stress, avoids petiole impaired, be conducive to the effective application realizing major diameter impeller.And there is the advantage being convenient to adjust blade angle, thus can carry out pre-setting established angle according to client's usage requirement before dispatching from the factory, make in-site installation become convenient, quick.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of the fan impeller for cooling of prior art;
Fig. 2 is the partial top view of the draught fan impeller of prior art;
Fig. 3 is the structural representation of fan impeller for cooling of the present invention;
Fig. 4 is the A portion enlarged view in Fig. 3;
Fig. 5 is the sectional view of swing connected element of the present invention.
Embodiment
Technological scheme of the present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 3 ~ Fig. 5, fan impeller for cooling 200 of the present invention comprises wheel hub 210 and several blade 220, for quaterfoil 220, four blades installation seats 230 are evenly provided with in the surrounding of wheel hub 210, petiole 221 place of each blade 220 is provided with and swings connected element 240, and carries out swing with corresponding blades installation seat 230 be connected by swinging connected element 240.Specifically, wheel hub 210 body is cross-shaped configuration, and edge is provided with strengthening rib 211; Each blades installation seat 230 cylindrically structure, its radial direction is connected and fixed integral with wheel hub 210, and it axially has pin-and-hole; Petiole 221 end of each blade 220 is provided with a flange 222, and each swing connected element 240 then comprises mounting flange 241, U-shaped support 242 and pin 243, and mounting flange 241 is sheathed on petiole 221, and offsets with flange 222; The stud bolt 244 that U-shaped support 242 one end is arranged by both sides respectively with flange is connected, and flange 222 is fixedly clamped between, play the effect of stator blade 220, the U-shaped end of U-shaped support 242 then passes pin-and-hole and blades installation seat 230 pin-connect by pin 243.Thus blade 220 is connected with blades installation seat 230, wheel hub 210 by U-shaped support 242, and make each blade 220 can also carry out waving and shimmy (swaying direction asks for an interview the solid arrow in Fig. 5) around pin 243.The axial both ends of the surface of blades installation seat 230 are also respectively equipped with limiting stopper 231, and this limiting stopper 231 is positioned at below pin-and-hole, by this limiting stopper 231 can ensure blower fan do not work or the slow-speed of revolution run state under, blade 220 also can be kept certain height, and prevents it from colliding transmission shaft or girder steel.In addition, resilient sleeve (not shown) is also provided with in pin-and-hole, pin 243 is passed resilient sleeve and is fixed by nut, this resilient sleeve can adopt wear-resisting, ageing-resistant rubber outer ring and metal inner ring combine making, in order to be reduced in the noise that blade 220 carries out waving and shimmy process produces.
Adopt fan impeller for cooling 200 of the present invention, there is following plurality of advantages:
One, swing Placement is adopted, make blade 220 can carry out waving in running and shimmy, be conducive to the moment of flexure eliminating the generation of petiole 221 place, reduce its flexural stress, thus effectively can solve the problem of petiole 221 insufficient strength of major diameter pultrusion blade 220, break through the bottleneck of major diameter impeller application and development.
Two, in blower fan operation process, centrifugal force can autobalance blade 220 gravity and aerodynamic force, by wave and shimmy action can make blade 220 track even, is positioned at same plane without the need to correcting blade tip.
Three, the use swinging Placement and resilient sleeve can significantly reduce mechanical vibration and structure self noise.
Four, this impeller blade 220 can pre-set established angle according to client's usage requirement before dispatching from the factory, and makes in-site installation become convenient, quick.
It should be noted that at this, above-mentioned established angle refers to the angle of blade 220 windward side (i.e. blade 220 upper surface) and horizontal plane.Specifically arrange as follows: first unclamp the nut on the stud bolt 244 between mounting flange 241 and U-shaped support 242; Then blade 220 is adjusted to required angle (adjustment direction asks for an interview the dotted arrow in Fig. 5); Fastening nut makes mounting flange 241 and U-shaped support 242 grip flange 222 again, thus is fixed by blade 220, completes setting and the adjustment of established angle.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (3)
1. a fan impeller for cooling, comprises wheel hub and several blade, it is characterized in that,
The surrounding of described wheel hub is evenly provided with blades installation seat, and the petiole place of each blade is provided with swing connected element, and carries out swing with corresponding blades installation seat be connected by swinging connected element;
Radial direction and the wheel hub of described each blades installation seat are connected and fixed, and axially have pin-and-hole;
Described swing connected element comprises mounting flange, U-shaped support and pin, and mounting flange is located on petiole; U-shaped support one end and Flange joint are fixed, and U-shaped end passes pin-and-hole and blades installation seat pin-connect by pin;
Described petiole end is provided with a flange, and described mounting flange is sheathed on petiole, and is connected and the flange that is fixedly clamped with U-shaped support one end by stud bolt.
2. fan impeller for cooling as claimed in claim 1, is characterized in that:
The axial both ends of the surface of described blades installation seat are respectively equipped with limiting stopper, and limiting stopper is positioned at below pin-and-hole.
3. fan impeller for cooling as claimed in claim 1, is characterized in that:
Also be provided with resilient sleeve in described pin-and-hole, described pin is passed resilient sleeve and is fixed by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165533.7A CN101832285B (en) | 2010-04-29 | 2010-04-29 | Fan impeller for cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165533.7A CN101832285B (en) | 2010-04-29 | 2010-04-29 | Fan impeller for cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832285A CN101832285A (en) | 2010-09-15 |
| CN101832285B true CN101832285B (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010165533.7A Active CN101832285B (en) | 2010-04-29 | 2010-04-29 | Fan impeller for cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832285B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297159B (en) * | 2011-09-16 | 2013-09-18 | 威海克莱特菲尔风机股份有限公司 | Axial impeller with vanes and hubs in composite hinge |
| CN104696287A (en) * | 2013-12-10 | 2015-06-10 | 惠阳航空螺旋桨有限责任公司 | Flexible connection type petiole of cooling tower fan |
| CN104697766A (en) * | 2014-08-26 | 2015-06-10 | 中国直升机设计研究所 | Bidirectional hinge support device |
| CN104500448A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Axial flow cooling tower fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077054U (en) * | 1990-08-06 | 1991-05-15 | 方增雄 | Electric fan with foldable blades |
| EP1195527A1 (en) * | 2000-10-05 | 2002-04-10 | Diandra S.A. | Axial fan |
| NL1022084C2 (en) * | 2002-12-05 | 2004-06-08 | Ventilatoren Sirocco Howden Bv | Rotor with flexible blades for e.g. fans, has blade stops formed by springs between hub and blades |
| CN2653188Y (en) * | 2003-06-17 | 2004-11-03 | 立原家电股份有限公司 | Seiling fan blade assembling structure |
| CN2767721Y (en) * | 2005-01-24 | 2006-03-29 | 莱州冷却塔风机制造有限公司 | Fan wheel hub for cooling tower |
| CN101646873A (en) * | 2007-02-08 | 2010-02-10 | 瑞泰控股公司 | Industrial ceiling fan |
| CN201679764U (en) * | 2010-04-29 | 2010-12-22 | 上海尔华杰机电装备制造有限公司 | Fan impeller for cooling |
-
2010
- 2010-04-29 CN CN201010165533.7A patent/CN101832285B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077054U (en) * | 1990-08-06 | 1991-05-15 | 方增雄 | Electric fan with foldable blades |
| EP1195527A1 (en) * | 2000-10-05 | 2002-04-10 | Diandra S.A. | Axial fan |
| NL1022084C2 (en) * | 2002-12-05 | 2004-06-08 | Ventilatoren Sirocco Howden Bv | Rotor with flexible blades for e.g. fans, has blade stops formed by springs between hub and blades |
| CN2653188Y (en) * | 2003-06-17 | 2004-11-03 | 立原家电股份有限公司 | Seiling fan blade assembling structure |
| CN2767721Y (en) * | 2005-01-24 | 2006-03-29 | 莱州冷却塔风机制造有限公司 | Fan wheel hub for cooling tower |
| CN101646873A (en) * | 2007-02-08 | 2010-02-10 | 瑞泰控股公司 | Industrial ceiling fan |
| CN201679764U (en) * | 2010-04-29 | 2010-12-22 | 上海尔华杰机电装备制造有限公司 | Fan impeller for cooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832285A (en) | 2010-09-15 |
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