A kind of axial flow fan vane wheelTechnical field
The present invention relates to a kind of axial flow fan vane wheels.
Background technology
Axial flow blower is rotated by impeller, and gas is parallel to the device of fan shaft flowing.Axial flow blower is generally used forTraffic requirement is higher and the lower occasion of pressure requirements.The purposes of axial flow blower is very extensive, such as electric fan, outdoor machine of air-conditioner windFan, automobile axial flow blower etc..Axial flow blower is mainly made of impeller and casing, simple in structure but index request is very high.
It is to determine axis stream wind with good aeroperformance and noise specification as the core component impeller of axial flow blowerThe key of machine performance.And the designs such as the arrangement of impeller blade, the shape of blade, angle of blade can directly affect impellerAeroperformance and noise.
Meanwhile some axial flow blower impellers can increase a rotating ring to ensure its performance at the top of blade.LeafThe top of piece and the joint of rotating ring often form a large amount of dust stratifications with using, to influence the performance of axial flow blower.ForSolution problem above generally requires to remove dust stratification by maintenance.But just because of the presence of dust stratification problem so that axis stream windThe maintenance frequency of machine is excessive, reduces service efficiency.
Invention content
The object of the present invention is to provide a kind of whole aeroperformance is good, low noise, and can effectively reduce the axis of maintenance frequencyFlow fan impeller.
Realizing the technical solution of the object of the invention is：The present invention has wheel hub；The wheel hub upper edge rotation axis circumference pointIt is furnished with multiple blades；The side of blade is leading edge, and the other side is rear；The leading edge of the blade is equipped with the turbulent flow with blade oneDevice；The turbulator includes multiple protrusions arranged along up-front extending direction；The arrangement form waveform of the protrusion.
Also there is the rotating ring coaxial with wheel hub simultaneously；Wheel hub links into an integrated entity with root of blade, vane tip and rotationRing links into an integrated entity.
Above-mentioned turbulator extends to vane tip from root of blade；The protrusion that turbulator is located at root of blade is connect with wheel hubIntegrally；The protrusion that turbulator is located at vane tip links into an integrated entity with rotating ring.
As an optimization, above-mentioned turbulator is located at the protrusion of vane tip, to the leading edge far from blade and gradually to rotating ringClose direction nature transition, and formed and linked into an integrated entity with rotating ring and higher than the extension of other protrusions.
It deforms as an optimization, above-mentioned protrusion includes riser portions and fall；The turbulator is located at the protrusion of vane tip,Extending direction along its riser portions links into an integrated entity prolonging higher than other protrusions to rotating ring nature transition formation and rotating ringExtending portion.
The angle of the tangent line of above-mentioned vane tip and the tangent line of rotating ring is 10 °~30 °.
On above-mentioned rotating ring notch is equipped with the intersection of the pressure face of blade；The bottom surface of notch is along its corresponding bladePressure face extends.
The bottom surface of above-mentioned notch extends to the rear of blade from the up-front one end of extension far from blade.
The inner wall upper edge rotation axis circle distribution of wheel hub is useful for the rib to radiate when rotation.
Above-mentioned rib is in foliaceous.
The present invention has the effect of positive：(1) it is good by turbulator to substantially increase whole aeroperformance by the present invention, andLow noise；
(2) present invention further improves aeroperformance, reduces noise by the optimization design of turbulator；
(3) present invention further improves aeroperformance, reduces noise by the extension of turbulator；
(4) present invention eliminates dust stratification dead angle, greatly reduces the maintenance frequency of wind turbine by the notch on rotating ring；
(5) present invention in notch optimization design, further obviate dust stratification dead angle；
(6) present invention can be effectively increased heat dissipation effect by rib, ensure the stability to work long hours and service life.
Description of the drawings
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawingThe present invention is described in further detail, wherein
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the rear position view of the present invention；
Fig. 4 is air quantity-Pressure testing correction data figure of the present invention and existing impeller；
Fig. 5 is air quantity-efficiency test correction data figure of the present invention and existing impeller；
Fig. 6 is air quantity-noise testing correction data figure of the present invention and existing impeller.
Specific implementation mode
(embodiment one)
See that Fig. 1 to Fig. 3, the present invention have the wheel hub 1 and rotating ring 3 of coaxial arrangement；Between the wheel hub 1 and rotating ring 3There are multiple blades 2 along rotation axis circle distribution；Wheel hub 1 links into an integrated entity with root of blade 22, vane tip 23 and rotating ring 3It links into an integrated entity；The side of blade 2 is leading edge, and the other side is rear；The leading edge of the blade 2 is equipped with the rapids with 2 one of bladeFlow device 21；The turbulator 21 includes multiple protrusions along the arrangement of up-front extending direction；The arrangement form wave of the protrusionShape.
The turbulator 21 extends to vane tip 23 from root of blade 22；Turbulator 21 is located at the protrusion of root of blade 22It links into an integrated entity with wheel hub 1；The protrusion that turbulator 21 is located at vane tip 23 links into an integrated entity with rotating ring 3.
The protrusion includes riser portions and fall；The turbulator 21 is located at the protrusion of vane tip 23, along its risingThe extending direction in portion links into an integrated entity with rotating ring 3 higher than the extension 24 of other protrusions to the natural transition formation of rotating ring 3.
The tangent line of the vane tip 23 and the angle of the tangent line of rotating ring 3 are 10 °~30 °.
On the rotating ring 3 notch 4 is equipped with the intersection of the pressure face of blade 2 25；The bottom surface of notch 4 is corresponding along itsThe pressure face 25 of blade 2 extends, and extends to the rear of blade 2 far from up-front one end of blade 2 from extension 24.
The inner wall upper edge rotation axis circle distribution of wheel hub 1 is useful for the rib 5 to radiate when rotation.
The rib 5 is in foliaceous.
Just as shown in Figures 4 to 6, the present invention has aeroperformance more outstanding, and low noise than existing impeller.
(embodiment two)
The present invention has wheel hub 1；1 upper edge rotation axis circle distribution of the wheel hub has multiple blades 2；The side of blade 2For leading edge, the other side is rear；The leading edge of the blade 2 is equipped with the turbulator 21 with 2 one of blade；The turbulator 21 includesMultiple protrusions along the arrangement of up-front extending direction；The arrangement form waveform of the protrusion.
The inner wall upper edge rotation axis circle distribution of wheel hub 1 is useful for the rib 5 to radiate when rotation；The rib 5 is in leafSheet.
(embodiment three)
Turbulator 21 is located at the protrusion of vane tip 23 in the present invention, to the leading edge far from blade 2 and gradually to rotating ring 3Close direction nature transition, and formed and linked into an integrated entity with rotating ring 3 and higher than the extension 24 of other protrusions.Other technologiesFeature is identical as embodiment one.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effectIt describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is allWithin the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present inventionWithin the scope of shield.