CN205154673U - Low -noise axial flow fan - Google Patents
Low -noise axial flow fan Download PDFInfo
- Publication number
- CN205154673U CN205154673U CN201520964010.7U CN201520964010U CN205154673U CN 205154673 U CN205154673 U CN 205154673U CN 201520964010 U CN201520964010 U CN 201520964010U CN 205154673 U CN205154673 U CN 205154673U
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- China
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- rotating cylinder
- flabellum
- rotary drum
- motor
- gear
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Abstract
The utility model provides a low -noise axial flow fan belongs to fan technical field. It has solved technical problem such as current fan efficiency is lower, the noise is big. This axial fan is including the casing that is the tube -shape and the rotary drum that is the tube -shape, and the casing cover is established on the rotary drum and casing and rotary drum rotatable coupling, is equipped with a plurality of flabellums along rotary drum circumference in the rotary drum, and the inner of flabellum be the free end just all towards the axis of rotary drum, and the outer end of flabellum links firmly on the inner wall of rotary drum, has set firmly on the lateral surface of casing and to have driven rotary drum pivoted motor. The utility model discloses well motor setting is outside at the casing, has saved the connecting axle of flabellum moreover, and bar on the circulation of air passageway that has significantly reduced has improved the volume and the speed of circulation of air in the unit interval to ventilation efficiency has been improved, reduce the barrier that obstructs the air current circulation simultaneously for air current circulation is more smooth and easy, the production of the noise that has significantly reduced.
Description
Technical field
The utility model belongs to Fan Equipment technical field, relates to a kind of axial-flow blower, particularly a kind of low noise axial fan.
Background technique
Axial-flow blower purposes widely, gas is parallel to fan shaft flowing, axial fan is used in the occasion that traffic requirement is higher and pressure requirements is lower usually, axial-flow blower is primarily of draught fan impeller and casing composition, structure is simple but data demand is higher, plain edition axial-flow blower can be used for general factory, warehouse, office, the ventilation in the places such as premises, also can be used for air cooler, vaporizer, condenser, spray drop, etc., also mining axial blower is had, the usual enforcing location of existing axial fan is changeless, usually the gas requiring axial-flow blower to carry should without remarkable dust, inviscid and fibrous matter, motor direct linkage type temperature is no more than 40 DEG C, and belt transmission type temperature is no more than 60 DEG C, and the Dust Capacity of conveying gas must not more than 150mg/m
3.
China's patent (notification number: CN204755353U; Publication date: 2015-11-11) disclose a kind of fire-fighting high-temperature axial flow fan, comprise motor, Blower Housing and impeller, motor base is fixed with in Blower Housing, the end face of motor base is fixed with ring protection cover, motor is in ring protection cover, motor is fixed on the end face of motor base, and the outer wall of ring protection cover is fixed with multiple dunnage, and the other end of dunnage is weldingly fixed on the madial wall of Blower Housing; The main shaft of motor stretches out the front-end face of ring protection cover; The front end of Blower Housing is inserted with protective housing connecting ring; its motor is in ring protection cover; to reduce some dirts of motor outside attachment; reduce dirt to the impact of motor heat dissipation; improve motor working life, meanwhile, it is not enclosed construction; make good heat dissipation effect, and its protective housing is fixed by spacing ball headpin plug.
In axial-flow blower disclosed in above-mentioned patent, the main shaft of motor is identical with the axial direction of flabellum assembly, motor is positioned on the central axis of flabellum assembly, and all there is in powerful motor a large amount of coil winding, cause the volume of motor larger, motor inevitably occupies the circulation passage space of air-flow in flabellum assembly, affects the ventilation effect of ventilator. and cause air turbulence, noise is large simultaneously.
Summary of the invention
The problems referred to above that the utility model exists for existing technology, provide a kind of low noise axial fan, technical problem to be solved in the utility model is: reduce noise while how improving the drafting efficiency of axial-flow blower.
The utility model object realizes by following technical proposal:
A kind of low noise axial fan, it is characterized in that, described axial-flow blower comprises tubular housing and tubular rotating cylinder, described housing is set on described rotating cylinder and described housing and described rotating cylinder are rotatably connected, some flabellums are circumferentially with along rotating cylinder in described rotating cylinder, the inner of described flabellum is free end and all towards the medial axis of described rotating cylinder, the outer end of described flabellum is connected on the inwall of described rotating cylinder, the outer side surface of described housing is installed with the motor that can drive described drum rotation.
Its principle is as follows: the technical program Axial-Flow blower fan is used for ventilation smoke exhaust, motor is arranged on the outer side surface of housing, flabellum is that outer end is connected with the inwall of rotating cylinder, driven by motor drum rotation thus drive flabellum rotate, ventilate, form the air-flow being parallel to blower fan axial flow, because motor is arranged on outside in the technical program, and eliminate the coupling shaft of flabellum, greatly reduce the bar in air communication channel, improve volume and the speed of unit time inner air flow, thus improve drafting efficiency.
Blower fan air-flow in running can produce air power noise, gas unsteady flow, form flow perturbation, particularly when motor is arranged in air-flow path, turbulent phenomenon can be produced, thus produce a large amount of noises, electric machine external in the technical program and eliminate the coupling shaft of flabellum, make airflow more smooth and easy, greatly reduce the generation of noise.
In above-mentioned low noise axial fan, the madial wall of described housing offers the groove one of annular, the outer side surface of described rotating cylinder offers the groove two of the annular corresponding with described groove one, described groove one and groove two form the looping pit along shell circumference jointly, are provided with some balls in described looping pit.Such formation bearing connects, and reduces friction, and ensures stationarity and the smoothness of drum rotation, improves working life.
In above-mentioned low noise axial fan, the outer side surface of described rotating cylinder is provided with the teeth distributed ringwise, described housing offer just to the through hole of described teeth, the output shaft of described motor is installed with gear one, gear two is provided with between described teeth and described gear one, described gear one is meshed with gear two, and described gear two is meshed with described teeth through described through hole.Rotated by motor powered gear one rotation driven gear two, gear two engages with teeth and drives drum rotation, realizes the moment transmission of motor output shaft to rotating cylinder, reliable and stable.
In above-mentioned low noise axial fan, described housing all offers described groove one on the madial wall at two ends, and described rotating cylinder all offers described groove two on the outer side surface at two ends, and described teeth are positioned at the middle part of described rotating cylinder.From two ends, rotating cylinder is supported like this, ensure the axially locating of rotating cylinder and spacing to make the rotation that rotating cylinder is reliable and stable under driven by motor.
In above-mentioned low noise axial fan, the output shaft of described motor and the central shaft of described rotating cylinder are parallel to each other, described motor output shaft is installed with belt pulley one, the outer side surface of described rotating cylinder is provided with belt pulley two, and described belt pulley one is oppositely arranged with belt pulley two and described belt pulley one is connected by belt with belt pulley two.Motor is by belt drive drum rotation thus drive flabellum to rotate to ventilate, and then carry out vented exhaust, belt is connected with rotating cylinder through in housing, and belt pulley one and belt pulley two are processed simply, and connection reliably.
In above-mentioned low noise axial fan, described flabellum and described rotating cylinder is one-body molded or described flabellum is welded on the inwall of described rotating cylinder.Ensure the fixing of flabellum outer end, drive flabellum to rotate by rotating cylinder thus drive airflow.
Compared with prior art, the utility model has a little following:
1, in the utility model, motor is arranged on outside, and eliminates the coupling shaft of flabellum, greatly reduces the bar in air communication channel, improves volume and the speed of unit time inner air flow, thus improves drafting efficiency.
2, electric machine external and eliminate the coupling shaft of flabellum in the utility model, makes airflow more smooth and easy, greatly reduces the generation of noise.
Accompanying drawing explanation
Fig. 1 is the perspective view of this axial-flow blower.
In figure, 1, housing; 11, through hole; 2, rotating cylinder; 3, flabellum; 31, outer end; 32, inner; 4, motor; 5, teeth; 6, gear one; 7, gear two.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, the present embodiment Axial-Flow blower fan is used for ventilation smoke exhaust, this axial-flow blower comprises tubular housing 1 and tubular rotating cylinder 12, housing 1 is set on rotating cylinder 12 and housing 1 and rotating cylinder 12 are rotatably connected, some flabellums 3 are circumferentially with along rotating cylinder 12 in rotating cylinder 12, the inner 32 of flabellum 3 is free end and all towards the medial axis of rotating cylinder 12, the outer end 31 of flabellum 3 is connected on the inwall of rotating cylinder 12, the outer side surface of housing 1 is installed with the motor 4 that rotating cylinder 12 can be driven to rotate, one-body molded or flabellum 3 is welded on the inwall of rotating cylinder 12 with rotating cylinder 12 for flabellum 3, ensure the fixing of flabellum 3 outer end 31, during use, motor 4 drives rotating cylinder 12 to rotate thus drives flabellum 3 to rotate, ventilate, form the air-flow being parallel to blower fan axial flow, because motor 4 is arranged on outside, and eliminate the coupling shaft of flabellum 3, greatly reduce the bar in air communication channel, improve volume and the speed of unit time inner air flow, thus improve drafting efficiency.
Blower fan air-flow in running can produce air power noise, gas unsteady flow, form flow perturbation, particularly when motor 4 is arranged in air-flow path, can produce turbulent phenomenon, thus produce a large amount of noises, in the technical program, motor 4 is external and eliminate the coupling shaft of flabellum 3, make airflow more smooth and easy, greatly reduce the generation of noise.
The madial wall of the present embodiment middle shell 1 offers the groove one of annular, the outer side surface of rotating cylinder 12 offers the groove two of the annular corresponding with groove one, groove one and groove two form the looping pit along shell circumference jointly, some balls are provided with in looping pit, such formation bearing connects, reduce friction, ensure the stationarity that rotating cylinder 12 rotates and smoothness, improve working life; The outer side surface of rotating cylinder 12 is provided with the teeth 5 distributed ringwise, housing 1 offer just to the through hole 11 of teeth 5, the output shaft of motor 4 is installed with gear 1, gear 28 is provided with between teeth 5 and gear 1, gear 1 is meshed with gear 28, and gear 28 is meshed with teeth 5 through through hole 11.Rotated by motor 4 electric gear 1 rotation driven gear 28, gear 28 engages with teeth 5 and drives rotating cylinder 12 to rotate, and realizes the moment transmission of motor 4 output shaft to rotating cylinder 12, reliable and stable.
As preferably, the present embodiment middle shell 1 all offers groove one on the madial wall at two ends, rotating cylinder 12 all offers groove two on the outer side surface at two ends, teeth 5 are positioned at the middle part of rotating cylinder 12, support from two ends to rotating cylinder 12 like this, ensure the axially locating of rotating cylinder 12 and spacing to make the rotation that rotating cylinder 12 is reliable and stable under motor 4 drives.
Embodiment two
The present embodiment is roughly the same with embodiment one, difference is, in the present embodiment, the output shaft of motor 4 and the central shaft of rotating cylinder 12 are parallel to each other, motor 4 output shaft has been installed with belt pulley one, the outer side surface of rotating cylinder 12 is provided with belt pulley two, belt pulley one is oppositely arranged with belt pulley two and belt pulley one is connected by belt with belt pulley two, motor 4 is rotated by belt drive rotating cylinder 12 thus drives flabellum 3 to rotate and ventilates, and then carry out vented exhaust, belt is connected with rotating cylinder 12 through in housing 1, belt pulley one and belt pulley two are processed simply, and connect reliable.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ 1 herein, housing; 11, through hole; 2, rotating cylinder; 3, flabellum; 31, outer end; 32, inner; 4, motor; 5, teeth; 6, gear one; 7, the second-class term of gear, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (6)
1. a low noise axial fan, it is characterized in that, described axial-flow blower comprises tubular housing (1) and tubular rotating cylinder (12), described housing (1) is set in described rotating cylinder (12) upper and described housing (1) and described rotating cylinder (12) and is rotatably connected, some flabellums (3) are circumferentially with along rotating cylinder (12) in described rotating cylinder (12), the inner (32) of described flabellum (3) is for free end and all towards the medial axis of described rotating cylinder (12), the outer end (31) of described flabellum (3) is connected on the inwall of described rotating cylinder (12), the outer side surface of described housing (1) is installed with the motor (4) that described rotating cylinder (12) can be driven to rotate.
2. low noise axial fan according to claim 1, it is characterized in that, the madial wall of described housing (1) offers the groove one of annular, the outer side surface of described rotating cylinder (12) offers the groove two of the annular corresponding with described groove one, described groove one and groove two form the looping pit along shell circumference jointly, are provided with some balls in described looping pit.
3. low noise axial fan according to claim 2, it is characterized in that, the outer side surface of described rotating cylinder (12) is provided with the teeth (5) distributed ringwise, described housing (1) offer just to the through hole (11) of described teeth (5), the output shaft of described motor (4) is installed with gear one (7), gear two (8) is provided with between described teeth (5) and described gear one (7), described gear one (7) is meshed with gear two (8), described gear two (8) is meshed with described teeth (5) through described through hole (11).
4. low noise axial fan according to claim 3, it is characterized in that, described housing (1) all offers described groove one on the madial wall at two ends, described rotating cylinder (12) all offers described groove two on the outer side surface at two ends, and described teeth (5) are positioned at the middle part of described rotating cylinder (12).
5. low noise axial fan according to claim 2, it is characterized in that, the output shaft of described motor (4) and the central shaft of described rotating cylinder (12) are parallel to each other, described motor (4) output shaft has been installed with belt pulley one, the outer side surface of described rotating cylinder (12) is provided with belt pulley two, and described belt pulley one is oppositely arranged with belt pulley two and described belt pulley one is connected by belt with belt pulley two.
6. the low noise axial fan according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, the one-body molded or described flabellum (3) of described flabellum (3) and described rotating cylinder (12) is welded on the inwall of described rotating cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964010.7U CN205154673U (en) | 2015-11-27 | 2015-11-27 | Low -noise axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964010.7U CN205154673U (en) | 2015-11-27 | 2015-11-27 | Low -noise axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154673U true CN205154673U (en) | 2016-04-13 |
Family
ID=55690376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520964010.7U Expired - Fee Related CN205154673U (en) | 2015-11-27 | 2015-11-27 | Low -noise axial flow fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN205154673U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740778A (en) * | 2017-11-03 | 2018-02-27 | 贾庆隆 | The adjustable automobile air-supply arrangement of turbofan rotating speed |
| CN108788166A (en) * | 2018-07-20 | 2018-11-13 | 芜湖君华材料有限公司 | A kind of non-crystaline amorphous metal magnetic material collection fuel pulverizing plant |
| CN109014222A (en) * | 2018-07-19 | 2018-12-18 | 芜湖君华材料有限公司 | A kind of non-billon band collection shredding facilities |
| CN112377439A (en) * | 2020-11-13 | 2021-02-19 | 江苏双菊风机有限公司 | Fan that impeller was easily maintained |
| CN112412845A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112412840A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112412846A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112443493A (en) * | 2019-08-27 | 2021-03-05 | 广东美的环境电器制造有限公司 | Air supply device |
-
2015
- 2015-11-27 CN CN201520964010.7U patent/CN205154673U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740778A (en) * | 2017-11-03 | 2018-02-27 | 贾庆隆 | The adjustable automobile air-supply arrangement of turbofan rotating speed |
| CN109014222A (en) * | 2018-07-19 | 2018-12-18 | 芜湖君华材料有限公司 | A kind of non-billon band collection shredding facilities |
| CN108788166A (en) * | 2018-07-20 | 2018-11-13 | 芜湖君华材料有限公司 | A kind of non-crystaline amorphous metal magnetic material collection fuel pulverizing plant |
| CN112412845A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112412840A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112412846A (en) * | 2019-08-23 | 2021-02-26 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112443493A (en) * | 2019-08-27 | 2021-03-05 | 广东美的环境电器制造有限公司 | Air supply device |
| CN112377439A (en) * | 2020-11-13 | 2021-02-19 | 江苏双菊风机有限公司 | Fan that impeller was easily maintained |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Wenling City, Taizhou City, Zhejiang Province town of 317500 pump agglomeration point of two Patentee after: Three billion electrical Limited by Share Ltd Address before: Wenling City, Taizhou City, Zhejiang Province town of 317500 pump agglomeration point of two Patentee before: Sayi Electric Appliance Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181127 |