CN201671854U - Double-impeller axial flow fan of subway traction motor brake cooling system - Google Patents
Double-impeller axial flow fan of subway traction motor brake cooling system Download PDFInfo
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- CN201671854U CN201671854U CN201020180847XU CN201020180847U CN201671854U CN 201671854 U CN201671854 U CN 201671854U CN 201020180847X U CN201020180847X U CN 201020180847XU CN 201020180847 U CN201020180847 U CN 201020180847U CN 201671854 U CN201671854 U CN 201671854U
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- cooling system
- axial flow
- axial
- flow fan
- impeller
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Abstract
The utility model relates to a double-impeller axial flow fan of a subway traction motor brake cooling system, which is capable of cooling a traction motor brake cooling system. The axial flow fan comprises a traction motor brake cooling system double-impeller axial flow fan, and a motor is positioned inside an axial flow fan casing and fixed inside the axial flow fan casing through three small-sized fans. The axial flow fan has the advantages that as the small-sized fans between a front impeller and a rear impeller can form fine dynamic match with the front impeller and the rear impeller, the axial flow fan not only can avoid the shortages of background technique, but also can effectively increase fan efficiency and reduce fan noise.
Description
Technical field
The utility model relates to a kind of a kind of metro traction motor braking cooling system bilobed wheel axial-flow blower that can cool off pulling motor braking cooling system, is mainly used in metro traction motor braking cooling system, belongs to axial-flow blower and makes the field.
Background technique
Notice of authorization CN100445569C, title " Biimpeller axial fan of traction electric machine brake cooling system ", with the existing casing that comprises, the axial-flow blower of front and back impeller and motor is the basis, change the axially support plate of motor into design streamlined guide plate by airflow direction, motor support plate constitutes intermediate guide blade jointly with the streamlined stator that is distributed in the motor periphery and be fixed on the casing, the blade profile design of impeller before and after improving simultaneously again, blade adopts sweepforward shape wide outside and narrow inside, and be arranged on the wheel hub by equidistant mode, angle in the blade between external diameter centroid of section on line and radial alignment is 20 °～30 °, and the angle between adjacent blades is 55 °～95 °.Novel streamlined motor support plate of the utility model and impeller blade can improve the fan operation condition, improve fan efficiency, reduce airflow breakaway, have realized energy-conservation and noise reduction by a relatively large margin.This bilobed wheel axial-flow blower is mainly used in metro traction motor braking cooling system, reaches the fan operation condition of improving with it, improves fan efficiency, reduces the purpose of noise.Though but the axially support plate of the motor of background technique is to be designed to streamlined guide plate by airflow direction, but in since streamlined guide plate be the fixed guide plate, the angle of its guiding is a tilt fixing, it can't form dynamic fit with forward and backward impeller, therefore to produce windage inevitably, this windage not only directly influences fan efficiency, and noise is big.
The model utility content
Purpose of design: avoid the deficiency in the background technique, design and a kind ofly can improve fan efficiency effectively, can reduce a kind of metro traction motor braking cooling system bilobed wheel axial-flow blower of fan noise again.
Design proposal: in order to realize above-mentioned purpose of design.Motor is positioned at the axial-flow blower shell and by three small-sized fans motor is fixed on the design of axial-flow blower shell, is major technique feature of the present utility model.The purpose of doing like this is: because small-sized fan can form dynamic fit with forward and backward impeller, the impeller of its small-sized fan both can be with frontal lobe wheel formation dynamic fit, effectively with air quantity that preceding impeller produces importing back impeller in dynamically, can form good dynamic fit with the posterior lobe wheel again, thereby reach the purpose that improves fan efficiency, reduces fan noise.
Technological scheme: a kind of metro traction motor braking cooling system bilobed wheel axial-flow blower, it comprises Biimpeller axial fan of traction electric machine brake cooling system, motor is positioned at the axial-flow blower shell and by three small-sized fans motor is fixed on the axial-flow blower shell.
The utility model is compared with background technique, because the small-sized fan between forward and backward impeller can form good dynamic fit with forward and backward impeller, so the deficiency that not only can avoid background technique to deposit, and can improve the efficient of blower fan and the noise of reduction blower fan effectively.
Description of drawings
Fig. 1 is a kind of structural representation of metro traction motor braking cooling system bilobed wheel axial-flow blower, and wherein 1 is preceding impeller, and 2 is the link between small-sized fan and the axial- flow blower shell 5,3 back impellers, and 4 is motor, and 5 is the axial-flow blower shell, and 6 is small-sized fan.
Fig. 2 is the layout structure schematic representation between small-sized fan and the axial-flow blower shell 5, and wherein 2 is link between small-sized fan and the axial-flow blower shell 5, and 4 is motor, and 6 is small-sized fan.
Embodiment
Embodiment: with reference to attached Fig. 1 and 2.A kind of metro traction motor braking cooling system bilobed wheel axial-flow blower, it comprises Biimpeller axial fan of traction electric machine brake cooling system, motor 4 is positioned at axial-flow blower shell 5 and by three small-sized fans 6 motor 4 is fixed on axial-flow blower shell 5, and its described three small-sized fans, 6 circumference isogonisms distribute.Described small-sized fan 6 is connected with axial-flow blower shell 5 and motor casing by link 2, and this link 2 is a sheet structure, and its leptoprosopy is in the face of forward and backward impeller 1 and 3.
What need understand is: though the foregoing description is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (3)
1. metro traction motor braking cooling system bilobed wheel axial-flow blower, it comprises Biimpeller axial fan of traction electric machine brake cooling system, it is characterized in that: motor is positioned at axial-flow blower and by three small-sized fans motor is fixed on the axial-flow blower shell.
2. metro traction motor braking cooling system bilobed wheel axial-flow blower according to claim 1, it is characterized in that: described small-sized fan is connected with axial-flow blower shell and motor casing by link.
3. metro traction motor braking cooling system bilobed wheel axial-flow blower according to claim 1 is characterized in that: described three small-sized fan circumference isogonisms distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020180847XU CN201671854U (en) | 2010-05-06 | 2010-05-06 | Double-impeller axial flow fan of subway traction motor brake cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020180847XU CN201671854U (en) | 2010-05-06 | 2010-05-06 | Double-impeller axial flow fan of subway traction motor brake cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671854U true CN201671854U (en) | 2010-12-15 |
Family
ID=43329266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020180847XU Expired - Fee Related CN201671854U (en) | 2010-05-06 | 2010-05-06 | Double-impeller axial flow fan of subway traction motor brake cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832284A (en) * | 2010-05-06 | 2010-09-15 | 杭州顿力电器有限公司 | Double-impeller axial flow fan for metro pulling motor braking cooling system |
-
2010
- 2010-05-06 CN CN201020180847XU patent/CN201671854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832284A (en) * | 2010-05-06 | 2010-09-15 | 杭州顿力电器有限公司 | Double-impeller axial flow fan for metro pulling motor braking cooling system |
| CN101832284B (en) * | 2010-05-06 | 2012-11-21 | 杭州顿力电器有限公司 | Double-impeller axial flow fan for metro pulling motor braking cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20130506 |