CN2723749Y - Axial flow faw with external motor - Google Patents
Axial flow faw with external motor Download PDFInfo
- Publication number
- CN2723749Y CN2723749Y CN 200420082236 CN200420082236U CN2723749Y CN 2723749 Y CN2723749 Y CN 2723749Y CN 200420082236 CN200420082236 CN 200420082236 CN 200420082236 U CN200420082236 U CN 200420082236U CN 2723749 Y CN2723749 Y CN 2723749Y
- Authority
- CN
- China
- Prior art keywords
- motor
- casing
- fan
- belt pulley
- blade rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an axial flow fan with external motor, comprising a casing, blades, blade rotating axles, a bearing seat and a motor. The utility model is characterized in that a belt pulley is provided on the blade rotating axle; the motor is positioned out of the casing; a driving belt is connected with a belt pulley on a motor axle and the belt pulley on the blade rotating axle; the casing is provided with through holes corresponding to the belt point. The utility model has the advantages of improving the scope of application of the axial flow fan, increasing the flow path of the inner air channel of the fan, improving the air supply efficiency of the fan, and having larger flow rate than the axial flow fan in the same size.
Description
Technical field
The utility model relates to the axial-flow blower of a kind of axial-flow blower, particularly a kind of electric machine external.
Background technique
Present continuous increase along with building area, and the raising of the requirement that interior of building is ventilated, ventilation equipment will be used in many large-scale markets, office building, Movie theater etc. now, and existing coaxial big flow axis flow fan all can be used for this common occasion.But exhaust in industrial production and the blower fan that is used for fire-fighting smoke evacuation will have problems, at first existing Axial-flow fan motor is coaxial with impeller, be positioned on the air channel of casing, can reduce the flow path in air channel, secondly since operating conditions such as the insulating properties of motor and explosion-proof be restricted, when being used for the corrosive gas that industrial production is discharged, inflammable gas or when in fire-fighting, discharging high-temperature flue gas, damage will take place or ignite inflammable gas in the motor that is positioned on the casing air channel because of corrosive gas or high-temperature flue gas, cause the inefficacy of fan operation, thereby may bring the generation of bigger personnel casualty accidents.
Summary of the invention
The purpose of this utility model is to solve big existing the problems referred to above of flow axis flow fan in the prior art, and a kind of expansion air channel flow path is provided, and is suitable for the axial-flow blower of the electric machine external of various working.The axial-flow blower of the utility model design electric machine external, comprise casing, fan blade, fan blade rotating shaft, bearing support, motor, it is characterized in that: in the fan blade rotating shaft, belt pulley is arranged, motor is positioned at outside the casing, belt pulley on the drivign belt connection motor shaft and the belt pulley in the fan blade rotating shaft have through hole with respect to the drivign belt place on the casing.The utility model has the advantages that the Applicable scope that improves axial-flow blower, increase the flow path in the interior air channel of blower fan, improve the air-supply efficient of blower fan, make the flow of unidimensional axial-flow blower bigger.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise casing 1, fan blade 2, fan blade rotating shaft 3, bearing support 4, motor 5 among the figure, it is characterized in that: belt pulley 6 is arranged in fan blade rotating shaft 3, motor 5 is positioned at outside the casing 1, drivign belt 7 connects belt pulley 7 on 5 in the motors and the belt pulley 6 in the fan blade rotating shaft 3, with respect to drivign belt 7 places through hole 8 is arranged on the casing 1.Because at work, may contain corrosive gas or hot and humid gas during the institute in the blower fan blows, so will go to casing 1 outside than the motor 5 that is easier to influenced by external working environment and place, can improve the adaptability of complete machine greatly.
Claims (1)
1, the axial-flow blower of electric machine external, comprise casing, fan blade, fan blade rotating shaft, bearing support, motor, it is characterized in that: in the fan blade rotating shaft, belt pulley is arranged, motor is positioned at outside the casing, belt pulley on the drivign belt connection motor shaft and the belt pulley in the fan blade rotating shaft have through hole with respect to the drivign belt place on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082236 CN2723749Y (en) | 2004-08-25 | 2004-08-25 | Axial flow faw with external motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082236 CN2723749Y (en) | 2004-08-25 | 2004-08-25 | Axial flow faw with external motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723749Y true CN2723749Y (en) | 2005-09-07 |
Family
ID=35037375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420082236 Expired - Fee Related CN2723749Y (en) | 2004-08-25 | 2004-08-25 | Axial flow faw with external motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723749Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527524A (en) * | 2013-10-30 | 2014-01-22 | 恒天重工股份有限公司 | Side-door-type exhaust fan |
| CN111520804A (en) * | 2020-04-28 | 2020-08-11 | 郑士利 | Heat pump-based heating unit |
-
2004
- 2004-08-25 CN CN 200420082236 patent/CN2723749Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527524A (en) * | 2013-10-30 | 2014-01-22 | 恒天重工股份有限公司 | Side-door-type exhaust fan |
| CN111520804A (en) * | 2020-04-28 | 2020-08-11 | 郑士利 | Heat pump-based heating unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |