CN201606287U - Double-axial-flow fan used for air/air cooler and provided with speeder - Google Patents
Double-axial-flow fan used for air/air cooler and provided with speeder Download PDFInfo
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- CN201606287U CN201606287U CN2010200332146U CN201020033214U CN201606287U CN 201606287 U CN201606287 U CN 201606287U CN 2010200332146 U CN2010200332146 U CN 2010200332146U CN 201020033214 U CN201020033214 U CN 201020033214U CN 201606287 U CN201606287 U CN 201606287U
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Abstract
The utility model discloses a double-axial-flow fan used for an air/air cooler and provided with a speeder, comprising a shell fixed at the air intake of the air pipe of the air/air cooler, a motor installed in the shell, a fan installed on the output shaft of the motor and the speeder, wherein the output shaft of the motor comprises a main shaft extension end and a secondary shaft extension end which are composed by the same rotating shaft and respectively extend out of two ends of the motor body; the speeder is installed on the secondary shaft extension end; the fan comprises a main fan installed on the main shaft extension end and an auxiliary fan installed on the output end of the speeder; the blades of the main fan and auxiliary fan are arranged in a staggered way, and the bevel direction of the blades are consistent; and the diameter of the main fan is 1.5-2.5 times larger than that of the auxiliary fan. The double-axial-flow fan with the speeder can better improve the problem of wind speed air quantity dead zone at the central area of the air pipe of the air/air cooler, and better improve the efficiency and use ratio of the heat exchange power of the cooler.
Description
Technical field
The utility model relates to a kind of twin shaft flow fan that is used for the band speeder of sky/empty cooler.
Technical background
The axial-flow blower that is used for sky/empty cooler at present is a single axial stream blower fan (see figure 1), promptly mainly comprise the intake grill place that is fixed on sky/empty cooler ventilation duct shell 1, be installed in the motor 2 in the shell 1 and be installed in fan 3 on motor 2 output shafts.Wherein, the internal diameter of shell 1 is corresponding with the internal diameter of sky/empty cooler ventilation duct, the internal diameter coupling of the diameter of fan 3 and shell 1, when operation, because the diameter of fan 3 is bigger, there are blind area 50 (see figure 2)s of wind speed air quantity in the center region of the ventilation duct 5 of sky/empty cooler, make like this to have leisure/efficient of the hot exchange power of empty cooler reduces, and the utilization ratio of cooler is low.
Summary of the invention
The utility model has overcome deficiency of the prior art, a kind of twin shaft flow fan that is used for the band speeder of sky/empty cooler is provided, it can improve the problem of sky/wind speed air quantity blind area, empty cooler ventilation duct center region, improves the efficient and the utilization ratio of cooler hot exchange power.
Realize that the above-mentioned purpose technological scheme is: a kind of twin shaft flow fan that is used for the band speeder of sky/empty cooler, comprise the shell that is fixed on sky/empty cooler ventilation duct intake grill, be installed in the motor in the shell and be installed in fan on the motor output shaft, wherein, described twin shaft flow fan also comprises a speeder; The output shaft of described motor comprises that the main shaft that is made of same rotating shaft and stretch out the motor body two ends is respectively stretched end and countershaft is stretched end; Described speeder is installed in described countershaft and stretches on the end; Described fan comprises that being installed in described main shaft stretches the main fan on the end and be installed in auxilliary fan on the output terminal of described speeder, the blade of described main fan and auxilliary fan is provided with in the mode that staggers mutually, and their blade knuckle direction unanimity, the diameter of described main fan is greater than 1.5～2.5 times of the diameters of assisting fan.
The twin shaft flow fan of the above-mentioned band speeder that is used for sky/empty cooler, wherein, the blade quantity of described main fan and auxilliary fan is identical.
The twin shaft flow fan of the above-mentioned band speeder that is used for sky/empty cooler, wherein, described motor is single-phase asynchronous motor or threephase asynchronous machine.
The twin shaft flow fan of the above-mentioned band speeder that is used for sky/empty cooler, wherein, described speeder is gear drive or speed-adjustable motor, so that the rotating speed that turns to identical and auxilliary fan of described auxilliary fan and main fan is higher than 1.2～2.5 times of the rotating speeds of main fan.
The technological scheme of the twin shaft flow fan of a kind of band speeder that is used for sky/empty cooler of the present utility model, the twin shaft flow fan that adopts main and auxiliary axial fan to form, make main and auxiliary axial fan bear the ventilation of respective regions separately, thereby improve the problem of wind speed air quantity blind area, sky/empty cooler ventilation duct center region, improve the efficient and the utilization ratio of cooler hot exchange power.
Description of drawings
Fig. 1 is the structural representation of the single axial stream blower fan that is used for sky/empty cooler of prior art;
Fig. 2 is the user mode figure of the single axial stream blower fan that is used for sky/empty cooler of prior art;
Fig. 3 is the structural representation of the twin shaft flow fan of a kind of band speeder that is used for sky/empty cooler of the present utility model;
Fig. 4 is the user mode figure of the twin shaft flow fan of a kind of band speeder that is used for sky/empty cooler of the present utility model.
Embodiment
Below by embodiment the utility model is described in further detail.
See also Fig. 3 and Fig. 4, a kind of twin shaft flow fan 100 that is used for the band speeder of sky/empty cooler of the present utility model comprises shell 1, motor 2, speeder 3 and fan, wherein,
The countershaft that speeder 3 is installed in motor 2 is stretched on the end 22, and it can be gear drive or speed-adjustable motor, and its output speed is higher than 1.2～2.5 times of motor 2 rotating speeds and its and turns to consistent with turning to of motor 2;
Fan comprises that being installed in main shaft stretches main fan of holding on 21 41 and the auxilliary fan 42 that is installed on the speeder 3, identical and the knuckle direction unanimity of the blade quantity of main fan 41 and auxilliary fan 42, the blade of main fan 41 and auxilliary fan 42 is provided with in the mode that staggers mutually, and the diameter of main fan 41 is greater than 1.5～2.5 times of the diameters of auxilliary fan 42 and the knuckle direction unanimity of blade;
Because being installed in the main shaft of motor 2 rotating shafts, stretches on the end 21 main fan 41, speeder 3 is connected the countershaft of machine shaft and stretches on the end 22, and auxilliary fan 42 is installed on the output terminal of speeder 3, make the rotating speed of auxilliary fan 42 be higher than 1.2～2.5 times of the rotating speeds of main fan 41, knuckle direction because of the main fan 41 and the blade of auxilliary fan 42 is consistent again, therefore main fan 41 turns to identical with auxilliary fan 42, the wind direction unanimity, wind-force is entered from main fan 41, coming out in auxilliary fan 42 places, enters the ventilation duct 5 of sky/empty cooler;
The diameter of main fan 31 is greater than 1.5～2.5 times of the diameters of assisting fan 32, make main fan 41 bear big regional ventilations in corresponding sky/empty cooler ventilation duct 5, and the ventilation of center regions in the corresponding sky of auxilliary fan 42 burdens/empty cooler ventilation duct 5, because the rotating speed of auxilliary fan 42 is higher than the rotating speed of main fan 41, thereby make blast, wind speed and the air quantity of sky/empty cooler center region that bigger increase be arranged, improve the problem of wind speed air quantity blind area, sky/empty cooler ventilation duct 5 center region better, improved the efficient and the utilization ratio of cooler hot exchange power better.
A kind of twin shaft flow fan that is used for the band speeder of sky/empty cooler of the present utility model can also pressurize to air mass flow respectively and quicken by main fan 41 and auxilliary fan 42, thereby reaches the purpose of the blast, wind speed and the air quantity that increase axial-flow blower.
Above mode of execution has been described in detail the utility model, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details in the mode of execution should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection domain of the present utility model.
Claims (4)
1. twin shaft flow fan that is used for the band speeder of sky/empty cooler, comprise the shell that is fixed on sky/empty cooler ventilation duct intake grill, be installed in the motor in the shell and be installed in fan on the motor output shaft, it is characterized in that described twin shaft flow fan also comprises a speeder; The output shaft of described motor comprises that the main shaft that is made of same rotating shaft and stretch out the motor body two ends is respectively stretched end and countershaft is stretched end; Described speeder is installed in described countershaft and stretches on the end; Described fan comprises that being installed in described main shaft stretches the main fan on the end and be installed in auxilliary fan on the output terminal of described speeder, the blade of described main fan and auxilliary fan is provided with in the mode that staggers mutually, and their blade knuckle direction unanimity, the diameter of described main fan is greater than 1.5～2.5 times of the diameters of assisting fan.
2. the twin shaft flow fan that is used for the band speeder of sky/empty cooler according to claim 1 is characterized in that the blade quantity of described main fan and auxilliary fan is identical.
3. the twin shaft flow fan that is used for the band speeder of sky/empty cooler according to claim 1 is characterized in that described motor is single-phase asynchronous motor or threephase asynchronous machine.
4. the twin shaft flow fan that is used for the band speeder of sky/empty cooler according to claim 1, it is characterized in that, described speeder is gear drive or speed-adjustable motor, so that the rotating speed that turns to identical and auxilliary fan of described auxilliary fan and main fan is higher than 1.2～2.5 times of the rotating speeds of main fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200332146U CN201606287U (en) | 2010-01-19 | 2010-01-19 | Double-axial-flow fan used for air/air cooler and provided with speeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200332146U CN201606287U (en) | 2010-01-19 | 2010-01-19 | Double-axial-flow fan used for air/air cooler and provided with speeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606287U true CN201606287U (en) | 2010-10-13 |
Family
ID=42950993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200332146U Expired - Fee Related CN201606287U (en) | 2010-01-19 | 2010-01-19 | Double-axial-flow fan used for air/air cooler and provided with speeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350962A (en) * | 2015-12-11 | 2016-02-24 | 重庆梅安森科技股份有限公司 | Spraying device for dust fall |
| CN112642810A (en) * | 2020-12-18 | 2021-04-13 | 张风才 | Motor device with air purging structure |
-
2010
- 2010-01-19 CN CN2010200332146U patent/CN201606287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350962A (en) * | 2015-12-11 | 2016-02-24 | 重庆梅安森科技股份有限公司 | Spraying device for dust fall |
| CN112642810A (en) * | 2020-12-18 | 2021-04-13 | 张风才 | Motor device with air purging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20160119 |
|
| EXPY | Termination of patent right or utility model |