CN201650809U - Three-impeller rectifying axial flow fan specially used for subway traction motor brake cooling system - Google Patents
Three-impeller rectifying axial flow fan specially used for subway traction motor brake cooling system Download PDFInfo
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- CN201650809U CN201650809U CN2010201807833U CN201020180783U CN201650809U CN 201650809 U CN201650809 U CN 201650809U CN 2010201807833 U CN2010201807833 U CN 2010201807833U CN 201020180783 U CN201020180783 U CN 201020180783U CN 201650809 U CN201650809 U CN 201650809U
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- impeller
- fan
- flow fan
- axial flow
- cooling system
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Abstract
The utility model relates to a three-impeller rectifying axial flow fan specially used for a subway traction motor brake cooling system, which can effectively reduce wind resistance and the noise of the fan, and improves the efficiency of the fan. The three-impeller rectifying axial flow fan comprises a double-impeller axial flow fan of the traction motor brake cooling system; impellers are sheathed on the outer ring of a bearing; the inner ring of the bearing is fixedly connected with a body of a motor; and six pieces of streamline guide plates are divided into two groups which are respectively positioned at the two sides of the impellers and lead the motor to be fixed in a shell of the axial flow fan. The three-impeller rectifying axial flow fan has the advantages that 1. an impeller positioned between the front and the rear impellers not only can lead the front and the rear impellers to have good dynamic cooperation, but also effectively improves the efficiency of the fan and reduces the noise and the wind resistance of the fan; 2. the wind resistance factor of the fan is reduced, and the efficiency is improved, so that the aims of energy conservation and consumption reduction can be achieved; and 3. as the streamline guide plates are arranged, the three-impeller axial flow fan can be fixed, the rectification function can be exerted, and the three-impeller axial flow fan is more stable, higher and more powerful in wind speed.
Description
Technical field
The utility model relates to a kind ofly can either form Dynamic matching with the forward and backward impeller in the double leaf axial-flow blower, can reduce the special-purpose trilobed wheel commutation axis of the metro traction motor braking cooling system flow fan of windage, reduction fan noise, raising fan efficiency again effectively, be mainly used in metro traction motor braking cooling system, belong to axial-flow blower and make 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 either form Dynamic matching, can reduce windage again effectively, reduce fan noise, improve the special-purpose trilobed wheel commutation axis of the metro traction motor braking cooling system flow fan of fan efficiency with the forward and backward impeller in the double leaf axial-flow blower.
Design proposal: in order to realize above-mentioned purpose of design.1, the design of on the fuselage of the motor in the bilobed wheel axial-flow blower impeller being housed is one of technical characteristics of the present utility model.The purpose of doing like this is: because the impeller that is positioned on the motor fuselage can form dynamic fit with forward and backward impeller, the air quantity that it not only can produce preceding impeller effectively quickens water conservancy diversion and quickens water conservancy diversion to preceding impeller to the back impeller or with the air quantity that the back impeller produces, and in the conductive process of air quantity and wind speed, because the water conservancy diversion leaf of movable vane wheel and forward and backward impeller coupling, therefore the air resistance coefficient that not only produces is little, and noise is little, the efficient height.2, impeller one side or two sides adopt three streamlined guide plates that motor is fixed on design in the axial-flow blower shell, are two of technical characteristicss of the present utility model.The purpose of doing like this is: because three streamlined guide plates are to design by airflow direction, therefore adopt three streamlined guide plates both motor can be fixed in the middle of the axial-flow blower shell, can play the effect of water conservancy diversion again, thereby the cooling effectiveness of axial-flow blower is further improved.
Technological scheme: the special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system flow fan, it comprises Biimpeller axial fan of traction electric machine brake cooling system, impeller set is on the outer ring of bearing, the inner ring of bearing is fixedlyed connected with the fuselage of motor, and six streamlined guide plates are divided into two groups, lay respectively at impeller two sides and motor is fixed in the axial-flow blower shell.
The utility model is compared with background technique, the one, because the impeller between forward and backward impeller, not only can form good dynamic fit with forward and backward impeller, and the deficiency that can fundamentally avoid background technique to deposit, thereby improve the efficient of blower fan and the noise and the windage of reduction blower fan, the needs of railway traction motor braking cooling contentedly effectively; The 2nd, because the air resistance coefficient of blower fan reduces, efficient improves, therefore reached the purpose of saving energy consumption; The 3rd, the purpose of fixing three rachis flow fans had both been played in the setting of streamlined guide plate, had played the effect of rectification again, make three rachis flow fans distinguished and admirable reach current stabilization, at a high speed, strong purpose.
Description of drawings
Fig. 1 is first kind of embodiment's of the special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system flow fan a structural representation, and wherein 1 is preceding impeller, and 2 is streamlined guide plate, 3 back impellers, and 4 is motor, and 5 is the axial-flow blower shell, and 6 is impeller, and 7 is bearing.
Fig. 2 is an A-A sectional structure schematic representation among Fig. 1.
Embodiment
Embodiment: with reference to accompanying drawing 1 and 3.The special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system flow fan, it comprises Biimpeller axial fan of traction electric machine brake cooling system, the making of double leaf axial-flow blower is a prior art, is not described herein at this.Described impeller is passive impeller, and impeller 6 is enclosed within on the outer ring of bearing 7, and the inner ring of bearing 7 is fixedlyed connected with the fuselage of motor 4, and six streamlined guide plates 2 are divided into two groups, lay respectively at impeller 6 two sides and motor 4 is fixed in the axial-flow blower shell 5.Described impeller 6 two sides adopt three streamlined guide plates 2 to be fixed on motor 4 in the axial-flow blower shell 5 respectively and intake grill and preceding impeller 1 exhaust outlet coupling, exhaust outlet and back impeller 3 intake grills coupling.Described three streamlined guide plate 2 isogonisms distribute.The wind cooling method of the special-purpose trilobed wheel commutation axis of its metro traction motor braking cooling system flow fan, preceding impeller 1 in the three rachis flow fans on the coaxial motor 4 rotate the air quantity that produced by streamlined guide plate 2 rectification and guide to impeller 6, be guided to back impeller 3 again after the secondary rectification by streamlined guide plate 2, and derive by back impeller 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. the special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system flow fan, it comprises Biimpeller axial fan of traction electric machine brake cooling system, it is characterized in that: impeller set is on the outer ring of bearing, the inner ring of bearing is fixedlyed connected with the fuselage of motor, and six streamlined guide plates are divided into two groups, lay respectively at impeller two sides and motor is fixed in the axial-flow blower shell.
2. the special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system according to claim 1 flow fan, it is characterized in that: described impeller is passive impeller.
3. the special-purpose trilobed wheel commutation axis of metro traction motor braking cooling system according to claim 1 flow fan is characterized in that: described three streamlined guide plate isogonisms distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201807833U CN201650809U (en) | 2010-05-06 | 2010-05-06 | Three-impeller rectifying axial flow fan specially used for subway traction motor brake cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201807833U CN201650809U (en) | 2010-05-06 | 2010-05-06 | Three-impeller rectifying axial flow fan specially used for subway traction motor brake cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650809U true CN201650809U (en) | 2010-11-24 |
Family
ID=43116043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201807833U Expired - Fee Related CN201650809U (en) | 2010-05-06 | 2010-05-06 | Three-impeller rectifying axial flow fan specially used for subway traction motor brake cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650809U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268288A (en) * | 2018-09-20 | 2019-01-25 | 句容市江电电器机械有限公司 | A kind of axial flow blower of power distribution cabinet |
| CN111550422A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Fan shell is installed soon to multi-angle |
-
2010
- 2010-05-06 CN CN2010201807833U patent/CN201650809U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268288A (en) * | 2018-09-20 | 2019-01-25 | 句容市江电电器机械有限公司 | A kind of axial flow blower of power distribution cabinet |
| CN111550422A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Fan shell is installed soon to multi-angle |
| CN111550422B (en) * | 2020-05-15 | 2022-04-26 | 杭州余杭特种风机有限公司 | Fan shell is installed soon to multi-angle |
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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: 20101124 Termination date: 20110506 |