CN208900384U - A kind of novel axial flow fan - Google Patents
A kind of novel axial flow fan Download PDFInfo
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- CN208900384U CN208900384U CN201820780524.0U CN201820780524U CN208900384U CN 208900384 U CN208900384 U CN 208900384U CN 201820780524 U CN201820780524 U CN 201820780524U CN 208900384 U CN208900384 U CN 208900384U
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- flow
- motor
- blade body
- blade
- air inlet
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Abstract
The utility model belongs to ventilation equipment technical field, discloses a kind of novel axial flow fan, including Fang Jinyuan go out and middle part smooth transition shell, for fixing the T shape bracket of motor, the axial-flow leaf equipped with flow deflector and flow-stopping plate, motor and transmission mechanism.The beneficial effects of the utility model include: to optimize shell structure, while protecting motor and blade, provide excellent wind effect；The stability of electric machine support is enhanced, noise is reduced；Air flow condition when blade rotation is improved, reduces induced drag while reducing sinuous flow, reduces the vibration of blade and the load of motor, generates good mute and energy-efficient effect.
Description
Technical field
The utility model relates to ventilation equipment technical fields, more particularly, to a kind of novel axial flow fan.
Background technique
In livestock culture, farm it is aeration-cooling extremely important, blower be realize available ventilation key equipment, axis
The advantages that flow fan is of simple structure and low cost, adaptable because of its, is widely applied.In the prior art, axial flow blower is deposited
In following defect:
1, shell is mostly linear type shell, or only one for fixing the frame of motor and fan blade, not any to air inducing
It helps, and is easy water inlet, injure motor；
2, electric machine support is mostly column, and stability is poor, easily causes resonance, generates more noises；
3, when blade rotates, the air-flow for flowing through its surface is also easy to produce sinuous flow, vibrates blade, brings noise, stablizes
Property is poor, easy to damage；
4, when blade rotates, blade edge can generate induced drag, increase the load of motor, energy consumption is caused to increase.
Utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of novel axial flow fan, solve existing skill
Shell structure is simple in art, support stability is poor, blade rotation when easily vibration and the big technical problem of resistance.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of novel axial flow fan, comprising:
Shell comprising end to end air inlet cylinder and chimney fan, it is described air inlet cylinder head end opening be it is rectangular, tail end is opened
For mouth for circle, the barrel for entering the wind cylinder is smoothly transitted into circular cross section by square cross section；The chimney fan is in horn-like, head
It holds and matches with the tail end of the air inlet cylinder；
T shape bracket, is placed in the shell；
Motor is connect with the T shape rack elasticity；
Axial-flow leaf is placed in the shell, including wheel hub, and along at least two of the radially uniform setting of the wheel hub
Blade；Each blade includes blade body, is set to several leading by blade body respectively on the blade body surface
While to the flow deflector that lagging edge extends, and it is set to the flow-stopping plate of end of the blade body far from the wheel hub, the flow-stopping plate
It is bent to air supply direction；And
Transmission mechanism comprising the driving wheel connecting with the motor output shaft is connect with the driving wheel chain conveyer
Driven wheel, the transmission shaft being separately connected with the driven wheel and the axial-flow leaf, and be fixed on the T shape bracket and be used for
Support the bearing of the transmission shaft.
Compared with prior art, the beneficial effects of the utility model include: to optimize shell structure, protect motor and blade
While, excellent wind effect is provided；The stability of electric machine support is enhanced, noise is reduced；It improves when blade rotates
Air flow condition reduces induced drag while reducing sinuous flow, reduces the vibration of blade and the load of motor, generates good
Be fond of tranquility sound and energy-efficient effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model shell；
Fig. 2 is the structural schematic diagram of shell air inlet cylinder；
Fig. 3 is housing interior structure schematic diagram；
Fig. 4 is the structural schematic diagram of axial-flow leaf；
Fig. 5 is the structural schematic diagram of blade.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model provides a kind of novel axial flow fan, comprising: shell 1, T shape bracket 2, motor 3, axial-flow leaf 5
And transmission mechanism 4.
Shell 1, as shown in Figure 1 comprising end to end air inlet cylinder 11 and chimney fan 12, the head end of the air inlet cylinder 11
It is rectangular for being open, and tail end opening is circle, and the barrel for entering the wind cylinder 11 is smoothly transitted into circular cross section by square cross section；It is described
In horn-like, head end and the tail end for entering the wind cylinder 11 match chimney fan 12.
11 side of air inlet cylinder of shell 1 goes out into circle and the construction of middle part smooth transition creates excellent inlet air flow path,
The air supply efficiency of blower is improved, horn-like chimney fan 12 has the effect of wind gathering, increases the coverage of air-supply, and loudspeaker
The opening of shape is conducive to drain, and also can avoid external water and flows backward to motor side, guarantees motor safety.
Preferably, as shown in Fig. 2, the barrel of the air inlet cylinder 11 includes four opening faces 111 and a spherical surface
112, four opening faces 111 are gore or arc surface, the one side or string side in four opening faces 111 surround it is described into
The rectangular head end of air duct 11 is open, and the other both sides in each opening face 111 or arc side seamlessly transit with the spherical surface 112 connect respectively
It connects, the circular trailing end of the air inlet cylinder 11 is opened on the spherical surface 112.
Preferably, the gore is isosceles when the barrel opening face 111 of the air inlet cylinder 11 is gore
Gore.The opening face 111 of axisymmetric is conducive to the centering of air duct axis, keeps wind-guiding process more balanced, steady.
Preferably, the tail end opening of the air inlet cylinder 11 has the bulge loop 11a for matching the chimney fan 12, make
Air inlet cylinder 11 and chimney fan 12 align convenient, accurate when assembling, and bulge loop 11a can also provide chimney fan 12 certain supporting force,
Keep chimney fan not easily to fall off, guarantees the stability of structure.
Preferably, the head end opening of the air inlet cylinder 11 is equipped with shutter or mesh enclosure, chimney fan 12 is equipped with shutter
Or mesh enclosure.Shutter and mesh enclosure can play a protective role to the intracorporal motor of shell, axial-flow leaf, also can guarantee production safety.
T shape bracket 2, is placed in the shell, as shown in Figure 3.
Preferably, the T shape bracket 2 includes that both ends connect with the shell 1 respectively and pass through 1 geometry of shell
First bar 21 at center, and, one end is vertical with first bar 21 to be connect, the second bar that the other end is connect with the shell 11
22.Cooperation realizes 3 points of T shape and connects shell 1 jointly for first bar 21 and the second bar 22, is connected firmly and bracket stable；First bar 21
By 1 geometric center of shell, convenient for the accurate positionin of axial-flow leaf 5.
Preferably, the windward side of the T shape bracket 2 and leeward open up corresponding air holes 23, it can be further
Increase draught area, reduces the influence flowed to air.
Motor 3, with 2 elastic connection of T shape bracket.
Transmission mechanism 4, as shown in Figure 3 comprising the driving wheel 41 with the motor 3 output axis connection, with the active
The driven wheel 42 of 41 chain conveyers connection, the transmission shaft 43 being separately connected with the driven wheel 42 and axial-flow leaf 5 are taken turns, and is fixed on
On the T shape bracket 2 and it is used to support the bearing 44 of the transmission shaft 43.
Motor 2 drives driven wheel 42 to rotate by driving wheel 41, and driven wheel 42 drives axial-flow leaf 5 to revolve by transmission shaft 43
Turn, to push air to flow, realizes ventilation.T shape bracket 2 is solid and reliable, reduces the probability of resonance, and windward side is less, right
The influence of air flowing is smaller.In addition, motor 3 and 2 elastic connection of T shape bracket, further alleviate motor 2 and bring to entire blower
Vibration.
Preferably, the motor 3 includes motor body 31 and the motor cabinet 32 for fixing the motor body 31,
32 one end of motor cabinet and the T shape bracket 2 are hinged, and the other end is connect by elastic component 33 with the T shape bracket 2, are motor 3
Certain elastic space is provided, and the elastic space on the chain conveyer connection between driving wheel 41 and driven wheel 42 influence compared with
It is small.
Preferably, the hinge joint of the motor cabinet 32 and the T shape bracket 2 close to the transmission shaft 43, can make electricity
Distance of any point away from transmission shaft 43 in motion profile when machine 2 vibrates is as equal as possible, i.e., is reduced to the maximum extent to master
Chain conveyer between driving wheel 41 and driven wheel 42, which connects, to be influenced.
Preferably, the elastic component 33 is spring, naturally it is also possible to be other known elastic component.
Axial-flow leaf 5 is placed in the shell 1, including wheel hub 51 as shown in Figure 4 and Figure 5, and along the wheel hub diameter
To at least two blades 52 being uniformly arranged；Each blade 52 includes blade body 521, is set to the blade body
Several flow deflectors 522 extended respectively from the guide margin of blade body to lagging edge on 521 surfaces, and it is set to the blade body
The flow-stopping plate 523 of 521 ends far from the wheel hub 51, the flow-stopping plate 523 are bent to air supply direction.
When axial-flow leaf 5 rotates, blade 52 pushes air flowing, and air easily occurs irregular when passing through 52 surface of blade
There is sinuous flow in flow tendency, this trend will result in the shake of blade 52 once realizing, generates noise, and influence blade
52, the wheel hub 51 even service life of motor.Several flow deflectors 522 for being set to 521 surface of blade body pass through for combing
Air-flow, destroy occur sinuous flow trend, pass through air-flow steadily, that is, realize blade 52 steady operation, reduce noise, improve
The service life of the components such as blade 52.
When axial-flow leaf 5 rotates, the suction surface 521b of blade 52 generates negative pressure to air, by the sky of 1 inlet of shell
Gas draws in shell 1, and the pressure surface 521a of blade 52 generates normal pressure to air, air is released to 1 exit of shell, due to leaf
The pressure of the pressure ratio suction surface 521b of the pressure surface 521a of piece 52 is big, thus the air of the pressure surface 521a of blade 52 can generate around
It crosses 52 edge of blade (i.e. described end of the blade body 521 far from the wheel hub 51) and translates into becoming for 51 suction surface 521b of blade
Gesture, this trend once realizes the thrust that will reduce blade 52, and generates the rotational resistance of blade 52, i.e. induced drag.
Flow-stopping plate 523 is set to end of the blade body 521 far from the wheel hub 51, and is bent to air supply direction, increases
The air of the pressure surface 521a of blade 52 rolls over to the difficulty of 51 suction surface 521b of blade, and aforementioned generation is prevented to induce well
The trend of resistance.
Preferably, the flow deflector 522 is corresponding arc-shaped in track is moved；The flow-stopping plate 523 is in
It is corresponding arc-shaped to move track.It is that air-flow is oriented to, improves wind gathering effect.
Preferably, the flow deflector 522 is distributed in the pressure surface 521a and/or suction surface of the blade body 521
521b plays combing effect to the air-flow of 521 two working faces of blade body.When axial-flow leaf rotates, the leaf of air draught side
521 surface of piece ontology is suction surface 521b, the blade body 521 surface pressure surface 521a, pressure surface 521a of outlet air side and negative
Pressure surface 521b is disposed opposite to each other.
Preferably, when the flow deflector 522 is distributed in the pressure surface 521a and suction surface 521b of blade body 521
When, the flow deflector 522 positioned at the pressure surface 521a and suction surface 521b of blade body 521 corresponds distribution, can make blade sheet
The stress equalization of the pressure surface 521a and suction surface 521b of body 521, be also convenient for 522 one of flow deflector of the corresponding distribution in two sides at
Type.
Preferably, it is described correspond distribution flow deflector 522 be integrally formed, and the flow deflector 522 with it is described
The guide margin of blade body 521 is clamped, and installation is simple, easy to maintain.
Preferably, the flow-stopping plate 523 includes the flow-stopping plate ontology 523c for offering several relief hole 523a, it is several
Connecting pin of the relief hole 523a far from flow-stopping plate ontology 523c Yu the blade body 521.Because blade moves in a circle, flow-stopping plate
Excessive centrifugal pressure can be accumulated at 523, relief hole 523a can discharge excessive centrifugal pressure, to guarantee the smooth work of blade
Make.Connecting pin of the relief hole 523a far from flow-stopping plate ontology 523c Yu the blade body 521 can avoid blade pressure surface 521a
Air roll over to blade suction surface 521b, generate induced drag.
Preferably, the flow-stopping plate 523 further includes several drainage part 523b, each drainage part 523b and each pressure release
Hole 523a is corresponded.One drainage part 523b is set at each relief hole 523a, guides the air released stress to flow same
When, it is further reduced the probability of induced drag generation.
Preferably, the angle windward of the blade body 521 is 32~38 °, it is possible to provide excellent air quantity.
Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model.
Any other various changes and modifications that any technical concept according to the present utility model is made should be included in practical
In novel scope of protection of the claims.
Claims (9)
1. a kind of novel axial flow fan, characterized by comprising:
Shell comprising end to end air inlet cylinder and chimney fan, it is described air inlet cylinder head end opening be it is rectangular, tail end opening is
Circle, the barrel for entering the wind cylinder are smoothly transitted into circular cross section by square cross section；The chimney fan in horn-like, head end with
The tail end of the air inlet cylinder matches；
T shape bracket, is placed in the shell；
Motor is connect with the T shape rack elasticity；The motor includes motor body and for fixing the motor body
Motor cabinet, the motor cabinet one end and the T shape bracket are hinged, and the other end is connect by elastic component with the T shape bracket；
Axial-flow leaf is placed in the shell, including wheel hub, and along at least two leaves of the radially uniform setting of the wheel hub
Piece；Each blade includes blade body, is set to the several respectively by the guide margin of blade body of the blade body surface
The flow deflector extended to lagging edge, and is set to the flow-stopping plate of end of the blade body far from the wheel hub, the flow-stopping plate to
Air supply direction bending；And
Transmission mechanism comprising the driving wheel connecting with the motor output shaft is connect driven with the driving wheel chain conveyer
Wheel, the transmission shaft being separately connected with the driven wheel and the axial-flow leaf, and be fixed on the T shape bracket and be used to support
The bearing of the transmission shaft；Wherein, the hinge joint of the motor cabinet and the T shape bracket is close to the transmission shaft.
2. a kind of novel axial flow fan according to claim 1, it is characterised in that: the barrel of the air inlet cylinder includes four
Opening face and a spherical surface, four opening faces are gore or arc surface, and the one side or string side in four opening faces are enclosed
At the rectangular head end opening of the air inlet cylinder, the other both sides in each opening face or arc side seamlessly transit with the spherical surface connect respectively
It connects, the circular trailing end of the air inlet cylinder is opened on the spherical surface；When the barrel opening face of the air inlet cylinder is triangle
When face, which is isosceles triangle face.
3. a kind of novel axial flow fan according to claim 1 or 2, it is characterised in that: the tail end opening of the air inlet cylinder
With the bulge loop for matching the chimney fan；The head end opening of the air inlet cylinder is equipped with shutter or mesh enclosure, and chimney fan is equipped with
Shutter or mesh enclosure.
4. a kind of novel axial flow fan according to claim 1, it is characterised in that: the T shape bracket includes both ends difference
It is connect with the shell and the first bar Jing Guo the shell geometric center, and, one end and first bar are vertical to be connect, is another
Hold the second bar connecting with the shell；The windward side of the T shape bracket and leeward open up corresponding air holes.
5. a kind of novel axial flow fan according to claim 1, it is characterised in that: the flow deflector is in move track
It is corresponding arc-shaped；The flow-stopping plate is corresponding arc-shaped in track is moved.
6. a kind of novel axial flow fan according to claim 1 or 5, it is characterised in that: the flow deflector is distributed in described
The pressure surface and/or suction surface of blade body are located at when the flow deflector is distributed in the pressure surface and suction surface of blade body
The pressure surface of blade body and the flow deflector of suction surface correspond distribution.
7. a kind of novel axial flow fan according to claim 6, it is characterised in that: the flow deflector for corresponding distribution
It is integrally formed, and the flow deflector and the guide margin of the blade body are clamped.
8. a kind of novel axial flow fan according to claim 1 or 5, it is characterised in that: the flow-stopping plate includes offering
The flow-stopping plate ontology of several relief holes, connecting pin of several relief holes far from flow-stopping plate ontology Yu the blade body；The gear
Flowing plate further includes several drainage parts, and each drainage part and each relief hole correspond.
9. a kind of novel axial flow fan according to claim 1, it is characterised in that: the angle windward of the blade body is 32
~38 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780524.0U CN208900384U (en) | 2018-05-23 | 2018-05-23 | A kind of novel axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780524.0U CN208900384U (en) | 2018-05-23 | 2018-05-23 | A kind of novel axial flow fan |
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| Publication Number | Publication Date |
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| CN208900384U true CN208900384U (en) | 2019-05-24 |
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ID=66566109
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820780524.0U Active CN208900384U (en) | 2018-05-23 | 2018-05-23 | A kind of novel axial flow fan |
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| CN (1) | CN208900384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
-
2018
- 2018-05-23 CN CN201820780524.0U patent/CN208900384U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
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