CN209604312U - A kind of blade structure of industrial electric fan - Google Patents
A kind of blade structure of industrial electric fan Download PDFInfo
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- CN209604312U CN209604312U CN201721436066.0U CN201721436066U CN209604312U CN 209604312 U CN209604312 U CN 209604312U CN 201721436066 U CN201721436066 U CN 201721436066U CN 209604312 U CN209604312 U CN 209604312U
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Abstract
A kind of blade structure of industrial electric fan, including blade and wheel hub, root of blade are connect with wheel hub, and blade is radially extended by root；Blade is arranged four, and each blade is symmetrically and annular is uniformly distributed；The rotary shaft of the root relativeatoeterahub of blade is obliquely installed, and mutual angle a is 40 ° -60 °；The blade radial is distorted while extension.Blade in the utility model is extended through reasonable gradient and clockwise twist, in conjunction with the fan blade of paddle shape, reaches the air-supply effect that power is strong, air supplying distance is remote；Its air supply direction is parallel with the rotary shaft of flabellum, i.e., air supply direction is concentrated, and wind gathering power is strong；And the vortex that blade tail end generates is small, therefore noise is small.
Description
Technical field
The utility model relates to a kind of electric fan, in particular to a kind of blade structure of industrial electric fan.
Background technique
In existing Industrial fan industry, traditional flabellum generally uses two leaves or trilobed structure, is respectively present following
Defect: bilobed structure, the distribution angle between blade are 180 °, and angle is larger for distribution when flabellum being caused to run at high speed, the air-flow of generation
Gap is excessive, and frequency increases, and generates loud noise；Trilobed structure, the wind-force of generation is slow to be dissipated, does not concentrate, and blade tail end meeting
Biggish vortex is generated, biggish noise is formed.As Chinese patent literature CN204628075U is open on September 9th, 2015
A kind of streamlined Industrial fan flabellum, specifically discloses: including blade and being located at blade root and the blade tip at blade both ends, the leaf
The width of root is less than the width of blade, and the blade gradually twists from one end close to blade root to one end close to blade tip,
And the width of blade is also gradually reduced, the streamlined structure in the section of the blade, the one end of the blade tip far from blade to
Lower bending；Width of the blade close to one end of blade root is blade close to twice of the width of that one end of blade tip.In the structure
Blade gradient and twist due to not cooperating well, cause the working effect of flabellum not good enough, be embodied in enhancing wind
Cause noise larger while power, influences using embodiment.
Therefore, defect existing for the Industrial fan for the above-mentioned prior art, it is necessary to it is optimized, so that its
Reach that wind-force is strong, and the effect of low noise.
Utility model content
The purpose of the utility model is to provide one kind, and air quantity that is simple and reasonable, generating is big, noise is small, material cost
Low, wind-force uniformly, realize superpower wind gathering industrial electric fan blade structure, to overcome shortcoming in the prior art.
By a kind of blade structure of industrial electric fan of this purpose design, including blade and wheel hub, root of blade and wheel
Hub connection, and blade is radially extended by root；The blade is arranged four, and each blade is symmetrically and annular is uniformly distributed；Its
Be characterized in that: the rotary shaft of the root relativeatoeterahub of the blade is obliquely installed, mutual angle a be 40 ° -60 °, preferably 40 ° -
50°；The blade radial is distorted clockwise or counterclockwise while extension.
The length of the blade is d1, vane clockwise distortion makes the angle of its different location and wheel hub rotary shaft not
Together, wherein in blade 1/3d1The angle b of the section of position and wheel hub rotary shaft is 60 ° -80 °, preferably 60 ° -70 °, in blade
2/3d1The section of position and the angle c of wheel hub rotary shaft are 75 ° -88 °, preferably 75 ° -80 °.As different specific embodiments:
In same blade, the angle a is 45 °, angle b is 65 °, angle c is 79 °；Alternatively, in same blade, the angle a
For 43 °, angle b be 63 °, angle c is 78 °；Alternatively, the angle a is 48 ° in same blade, angle b is 68 °, angle c
It is 79 °.
Structure setting of the two opposite blades to cut mutually, cutting ratio e:f is 1:1,5:6,6:5,10:11 or 11:
10；The ratio between maximum width d4 of length d1 of the blade and blade is 25-38:5, preferably 38:5,36:5,34:5,32:5,6:
1,28:5,26:5 or 5:1.
The middle part of blade has the recess radially extended, i.e. the section of blade any position is arc-shaped, and blade edge is equal
Round corner treatment.
Dividing on the blade has blow area and wind gathering area, and area of blowing is set on the inside of blade, and wind gathering area is set to blade
Outside, wind gathering area relative vane turn forward, which is 1 ° -3 °.
The blade shape is gradually become smaller again afterwards by interior become larger outward, and area of blowing is located in the structure become larger,
Wind gathering area is located in gradually smaller structure.
The blade is equipped with blow edge, wind-guiding edge and wind gathering edge, edge of blowing, wind-guiding edge and wind gathering edge
It is convexly curved respectively, blow edge and wind-guiding edge are bent to the opposite direction in direction of blowing respectively, and wind gathering edge is to the side of blowing
It to bending, blows and forms the area of blowing between edge and wind-guiding edge, blow described in being formed between edge and wind gathering edge
Wind gathering area.
The length d in the area of blowing2With the length d in wind gathering area3Between ratio are as follows: 1-2:1, preferably 1:1,6:5,7:5,8:
5,9:5 or 2:1.
The blade relativeatoeterahub turns forward, which is 1 ° -3 °.
Blade in the utility model is extended through reasonable gradient and clockwise twist, in conjunction with the fan blade of paddle shape,
Reach the air-supply effect that power is strong, air supplying distance is remote；Its air supply direction is parallel with the rotary shaft of flabellum, i.e. air supply direction collection
In, wind gathering power is strong；And the vortex that blade tail end generates is small, therefore noise is small.Specifically, blade profile is arc-shaped, can be improved and scrapes
Wind effect, and air-flow is oriented to, make air-flow is unified to push forwards, in conjunction with blade twist shape, it can be ensured that air-flow
Whole to blow out in a spiral manner, wind-force is uniform, effectively increases and scrapes air quantity, realizes superpower wind gathering, and avoid gas collisions
It makes a noise；Further more, effectively reaching air-flow convergence effect toward center water conservancy diversion by air-flow by setting wind gathering area, avoiding air-flow
Disperse outward and influence using embodiment, and the vortex that wind gathering area generates is small, noise is effectively reduced.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model first embodiment.
Fig. 2 is the main view of the utility model first embodiment.
Fig. 3 is the cross-sectional view in the direction A1-A1 in Fig. 2.
Fig. 4 is the cross-sectional view in the direction B1-B1 in Fig. 2.
Fig. 5 is the cross-sectional view in the direction C1-C1 in Fig. 2.
Fig. 6 is the partial structural diagram of the utility model first embodiment.
Fig. 7 is the main view of blade in the utility model first embodiment.
Fig. 8 is the bottom view of blade in the utility model first embodiment.
Fig. 9 is the utility model first embodiment working principle diagram.
Figure 10 is the perspective view of the utility model second embodiment.
Figure 11 is the main view of the utility model second embodiment.
Figure 12 is the cross-sectional view in the direction A2-A2 in Figure 10.
Figure 13 is the cross-sectional view in the direction B2-B2 in Figure 10.
Figure 14 is the cross-sectional view in the direction C2-C2 in Figure 10.
Figure 15 is the partial structural diagram of the utility model second embodiment.
Figure 16 is the main view of blade in the utility model second embodiment.
Figure 17 is the bottom view of blade in the utility model second embodiment.
Figure 18 is the perspective view of the utility model 3rd embodiment.
Figure 19 is the main view of the utility model 3rd embodiment.
Figure 20 is the cross-sectional view in the direction A3-A3 in Figure 18.
Figure 21 is the cross-sectional view in the direction B3-B3 in Figure 18.
Figure 22 is the cross-sectional view in the direction C3-C3 in Figure 18.
Figure 23 is the partial structural diagram of the utility model 3rd embodiment.
Figure 24 is the main view of blade in the utility model 3rd embodiment.
Figure 25 is the bottom view of blade in the utility model 3rd embodiment.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
First embodiment
Referring to Fig. 1-Fig. 8, the flabellum diameter for the industrial electric fan that the present embodiment is related to is 750 ± 5%mm, the flabellum packet
Blade 1 and wheel hub 2 are included, 1 root of blade is connect with wheel hub 2, and blade 1 is radially extended by root；Blade 1 is arranged four,
Each blade 1 is symmetrically and annular is uniformly distributed；The rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is
45°；Clockwise twist while blade 1 radially extends；The length of blade 1 is d1For 349 ± 5%mm, 1 clockwise twist of blade
Keep its different location and the angle of 2 rotary shaft of wheel hub different, wherein in 1 1/3d of blade1The section of position and wheel hub 2 rotate
The angle b of axis is 65 °, in 1 2/3d of blade1The section of position and the angle c of 2 rotary shaft of wheel hub are 79 °.This structure passes through conjunction
The gradient of reason extends and clockwise twist, in conjunction with the fan blade of paddle shape, reaches the air-supply effect that power is strong, air supplying distance is remote
Fruit；Its air supply direction is parallel with the rotary shaft of flabellum, i.e., air supply direction is concentrated, and wind gathering power is strong, and the vortex that blade tail end generates
It is small, therefore noise is small.
Furtherly, structure setting of the two opposite blades 1 to cut mutually, (referring to Fig. 6) cutting ratio e:f are 1:1；
The ratio between length d1 and the maximum width d4 of blade 1 of blade 1 are 38:5.
Furtherly, there is the recess radially extended in the middle part of blade 1, i.e. the section of 1 any position of blade is arc-shaped, blade
The equal round corner treatment in 1 edge effectively avoids making a noise when work；This arcuate structure can be mentioned in conjunction with the distorted shape of blade 1
Height is blown effect, and is oriented to air-flow, makes air-flow is unified to push forwards, and then ensures that air-flow is integrally blown in a spiral manner
Out, it effectively increases and scrapes air quantity, avoid gas collisions and make a noise.
Furtherly, referring to figs. 7 and 8, the arrow direction in Fig. 7 is the swaying direction of blade 1, direction of blowing, Fig. 8
In arrow direction be air-flow conveying direction；1 surface of blade, which divides to have, blows area 1.1 and wind gathering area 1.2 blows the setting of area 1.1
In 1 inside of blade, wind gathering area 1.2 is set to 1 outside of blade, and blowing has cambered surface transition, wind gathering between area 1.1 and wind gathering area 1.2
1.2 relative vane 1 of area turns forward, which is 2 °, and as seen from Figure 8, the airflow direction that wind gathering area 1.2 generates inclines to center
Tiltedly, it effectively realizes air-flow convergence, avoids the effect of dispersive effects air-supply outward.
Furtherly, 1 shape of blade is gradually become smaller again afterwards by interior become larger outward, and area 1.1 of blowing, which is located at, to be become larger
Structure on, wind gathering area 1.2 is located in gradually smaller structure；Referring to Fig. 9, the air quantity that the maximum position of structure generates is maximum,
The position, which is set to, blows between area 1.1 and wind gathering area 1.2, effective to separate blow area 1.1 and wind gathering area 1.2, it is ensured that blow
Columned air flow swirl is formed in inside when area 1.1 blows, guarantees that air quantity is sufficiently large, and when the air-supply of wind gathering area 1.2 on the outside
Coniform air flow swirl is formed, protective layer is formed to the columned air flow swirl in inside, guarantees air-supply effect stability, concentrate.
Furtherly, blade 1 is equipped with and blows edge 1.3, wind-guiding edge 1.4 and wind gathering edge 1.5, edge 1.3 of blowing,
Wind-guiding edge 1.4 and wind gathering edge 1.5 are convexly curved respectively, and blow edge 1.3 and wind-guiding edge 1.4 are respectively to direction of blowing
Opposite direction bending, wind gathering edge 1.5 is bent to direction of blowing, and blowing, it is described to be formed between edge 1.3 and wind-guiding edge 1.4
It blows area 1.1, blows and form the wind gathering area 1.2 between edge 1.3 and wind gathering edge 1.5.
Furtherly, it blows the length d in area 1.12With the length d in wind gathering area 1.23Between ratio are as follows: 2:1.
Furtherly, 1 relativeatoeterahub 2 of blade turns forward, which is 2 °, and air-flow is further prevented to disperse outward.
Second embodiment
Referring to Figure 10-Figure 17, the flabellum diameter for the industrial electric fan that the present embodiment is related to is 650 ± 5%mm, different
Be in place of first embodiment: the rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is 43 °；Leaf
Clockwise twist while piece 1 radially extends；The length of blade 1 is d1For 300 ± 5%mm, 1 clockwise twist of blade makes it not
It is different with position and the angle of 2 rotary shaft of wheel hub, wherein in 1 1/3d of blade1The section of position and the folder of 2 rotary shaft of wheel hub
Angle b is 63 °, in 1 2/3d of blade1The section of position and the angle c of 2 rotary shaft of wheel hub are 78 °.
It blows the length d in area 1.12With the length d in wind gathering area 1.23Between ratio are as follows: 9:5.
The two opposite cuttings mutually of blade 1, cutting ratio e:f is 5:6；The length d1 of blade 1 and the maximum width of blade 1
The ratio between d4 is 32:5.
Other not described same first embodiments in part, here no longer analytic explanation.
3rd embodiment
Referring to Figure 18-Figure 25, the flabellum diameter for the industrial electric fan that the present embodiment is related to is 500 ± 5%mm, different
Be in place of first embodiment: the rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is 48 °；Leaf
Clockwise twist while piece 1 radially extends；The length of blade 1 is d1For 225 ± 5%mm, 1 clockwise twist of blade makes it not
It is different with position and the angle of 2 rotary shaft of wheel hub, wherein in 1 1/3d of blade1The section of position and the folder of 2 rotary shaft of wheel hub
Angle b is 68 °, in 1 2/3d of blade1The section of position and the angle c of 2 rotary shaft of wheel hub are 79 °.
It blows the length d in area 1.12With the length d in wind gathering area 1.23Between ratio are as follows: 7:5.
The two opposite cuttings mutually of blade 1, cutting ratio e:f is 5:6；The length d1 of blade 1 and the maximum width of blade 1
The ratio between d4 is 5:1.
Other not described same first embodiments in part, here no longer analytic explanation.
The above-mentioned preferred embodiment for the utility model, has been shown and described the basic principles and main features of the utility model
And the advantages of the utility model.Those skilled in the art should be recognized that the present utility model is not limited to the above embodiments, on
It states and only illustrates the principles of the present invention described in embodiment and specification, do not departing from the spirit and scope of the utility model
Under the premise of the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical new
Within the scope of type.The utility model requires protection scope is defined by appended claims and its equivalent.
Claims (9)
1. a kind of blade structure of industrial electric fan, including blade (1) and wheel hub (2), blade (1) root and wheel hub (2) are even
It connects, and blade (1) is radially extended by root；The blade (1) is arranged four, and each blade (1) is symmetrically and annular is equal
Cloth；The rotary shaft of the root relativeatoeterahub (2) of the blade (1) is obliquely installed, and mutual angle a is 40 ° -60 °；The blade
(1) it is distorted while radially extending；
It is characterized by: dividing on the blade (1) has area of blowing (1.1) and wind gathering area (1.2), area of blowing (1.1) are set to
On the inside of blade (1), wind gathering area (1.2) are set on the outside of blade (1)；Blade (1) shape by it is interior become larger outward after again
It gradually becomes smaller, area of blowing (1.1) are located in the structure become larger, and wind gathering area (1.2) are located in gradually smaller structure.
2. the blade structure of industrial electric fan according to claim 1, it is characterised in that: the length of the blade (1)
For d1, blade (1) clockwise twist keeps its different location and the angle of wheel hub (2) rotary shaft different, wherein in blade (1)
1/3d1The section of position and the angle b of wheel hub (2) rotary shaft are 63 ° -68 °, in blade (1) 2/3d1The section of position and wheel hub
(2) the angle c of rotary shaft is 78 ° -79 °.
3. the blade structure of industrial electric fan according to claim 2, it is characterised in that: in same blade (1), institute
State that angle a is 45 °, angle b is 65 °, angle c is 79 °；
Alternatively, the angle a is 43 ° in same blade (1), angle b is 63 °, angle c is 78 °；
Alternatively, the angle a is 48 ° in same blade (1), angle b is 68 °, angle c is 79 °.
4. the blade structure of industrial electric fan according to claim 3, it is characterised in that: opposite two blades (1) with
The structure setting cut mutually, cutting ratio e:f are 1:1,5:6,6:5,10:11 or 11:10；The length d of the blade (1)1
With the maximum width d of blade (1)4The ratio between be 25-38:5.
5. the blade structure of industrial electric fan according to claim 4, it is characterised in that: have in the middle part of the blade (1)
The section of the recess radially extended, i.e. blade (1) any position is arc-shaped, the equal round corner treatment in blade (1) edge.
6. the blade structure of industrial electric fan according to claim 5, it is characterised in that: wind gathering area (1.2) are with respect to leaf
Piece (1) turns forward, which is 1 ° -3 °.
7. the blade structure of industrial electric fan according to claim 6, it is characterised in that: the blade (1) is equipped with
It blows edge (1.3), wind-guiding edge (1.4) and wind gathering edge (1.5), edge of blowing (1.3), wind-guiding edge (1.4) and wind gathering
Edge (1.5) is convexly curved respectively, and the opposite direction of edge of blowing (1.3) and wind-guiding edge (1.4) respectively to direction of blowing is curved
Song, wind gathering edge (1.5) are bent to direction of blowing, and described blow is formed between edge of blowing (1.3) and wind-guiding edge (1.4)
Area (1.1) forms the wind gathering area (1.2) between edge of blowing (1.3) and wind gathering edge (1.5).
8. the blade structure of industrial electric fan according to claim 7, it is characterised in that: the area of blowing (1.1)
Length d2With the length d of wind gathering area (1.2)3Between ratio are as follows: 1-2:1.
9. the blade structure of industrial electric fan according to claim 1-8, it is characterised in that: the blade
(1) relativeatoeterahub (2) turns forward, which is 1 ° -3 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721436066.0U CN209604312U (en) | 2017-10-31 | 2017-10-31 | A kind of blade structure of industrial electric fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721436066.0U CN209604312U (en) | 2017-10-31 | 2017-10-31 | A kind of blade structure of industrial electric fan |
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| CN209604312U true CN209604312U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676300A (en) * | 2017-10-31 | 2018-02-09 | 广东飞鹿电器有限公司 | A kind of blade structure of industrial electric fan |
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2017
- 2017-10-31 CN CN201721436066.0U patent/CN209604312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676300A (en) * | 2017-10-31 | 2018-02-09 | 广东飞鹿电器有限公司 | A kind of blade structure of industrial electric fan |
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