CN101832283B - Three- impeller axial flow fan of subway traction motor brake cooling system - Google Patents
Three- impeller axial flow fan of subway traction motor brake cooling system Download PDFInfo
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- CN101832283B CN101832283B CN201010164218A CN201010164218A CN101832283B CN 101832283 B CN101832283 B CN 101832283B CN 201010164218 A CN201010164218 A CN 201010164218A CN 201010164218 A CN201010164218 A CN 201010164218A CN 101832283 B CN101832283 B CN 101832283B
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- impeller
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- cooling system
- axial flow
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Abstract
The invention relates to a three-impeller axial flow fan of a subway traction motor brake cooling system, which can efficiently reduce the wind resistance and the fan noise and improve the fan efficiency, and comprises a double-impeller axial flow fan of the traction motor brake cooling system, wherein an impeller is installed on the machine body of a motor in the double-impeller axial flow fan. The invention has the advantages that: firstly, because the impeller located between a front impeller and a back impeller can form great dynamic match with the front impeller and the back impeller, and can avoid the disadvantages of the background technology basically so as to efficiently improve the efficiency of the fan, reduce the noise and the wind resistance of the fan and meet the requirements of the subway traction motor on brake and cooling; secondly, because the fan has lower wind resistance coefficient and higher efficiency, the purpose of saving energy is achieved; thirdly, due to the arrangement of a streamline-shaped guide plate, the purpose of fixing the three-impeller axial flow fan is realized, and the function of rectification is also realized, such that the three-impeller axial flow fan realizes the purpose of flow stabilization, high speed and powerfulness.
Description
Technical field
The present invention 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 three-impeller axial flow fan of subway traction motor brake cooling system 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 "; Comprise that with existing the axial-flow blower of casing, front and back impeller and motor is the basis; Change the axially support plate of motor into by the airflow direction design streamlined guide plate, 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 equidistance mode not, the angle in the blade between external diameter centroid of section on line and radial alignment is 20 °～30 °, the angle between adjacent blades is 55 °～95 °.Novel streamlined motor support plate of the present invention 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, and it can't form dynamic fit with forward and backward impeller, therefore will produce windage inevitably; This windage not only directly influences fan efficiency, and noise is big.
Summary of the invention
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 three-impeller axial flow fan of subway traction motor brake cooling system 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.The design of 1, on the fuselage of the motor in the bilobed wheel axial-flow blower impeller being housed is one of technical characteristics of the present invention.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, the air resistance coefficient that therefore not only produces is little; And noise is little, and efficient is high.2, impeller one side or two sides adopt three streamlined guide plates that motor is fixed on the design in the axial-flow blower shell, are two of technical characteristicss of the present invention.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 can motor 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 1: three-impeller axial flow fan of subway traction motor brake cooling system, it comprises Biimpeller axial fan of traction electric machine brake cooling system, on the fuselage of the motor in the said bilobed wheel axial-flow blower impeller that can rotate is housed.
Technological scheme 2: the wind cooling method of three-impeller axial flow fan of subway traction motor brake cooling system, the air quantity that preceding wheel rotation produced in the three rachis flow fans on the coaxial motor is guided to the back impeller through impeller, and is derived by the back impeller.
The present invention compares 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 three-impeller axial flow fan of subway traction motor brake cooling system 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 second kind of embodiment's of three-impeller axial flow fan of subway traction motor brake cooling system 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. 3 is an A-A sectional structure schematic representation among Fig. 1 and Fig. 2.
Embodiment
Embodiment: with reference to accompanying drawing 1 and 3.Three-impeller axial flow fan of subway traction motor brake cooling system, it comprises Biimpeller axial fan of traction electric machine brake cooling system, the making of double leaf axial-flow blower is an existing technology, is not described herein at this.The impeller 6 that can rotate is housed on the fuselage of the motor 4 in the said bilobed wheel axial-flow blower.Said impeller 6 is enclosed within on the outer ring of bearing 7, and the inner ring of bearing 7 is fixedly connected with the fuselage of motor 4, and impeller 6 is sleeved on the outer ring of bearing 7 and drives bearings 7 outer rings by impeller 7 and rotates.Said impeller 6 is passive impeller.Said impeller 6 one sides adopt three streamlined guide plates 2 to be fixed on motor 4 in the axial-flow blower shell 5 and intake grill and preceding impeller 1 exhaust outlet coupling, exhaust outlet mate with back impeller 3 intake grills, and promptly three streamlined guide plate 2 isogonisms are fixed on motor 4 in the axial-flow blower shell 5 and are positioned at impeller 6 one sides.Said three streamlined guide plate 2 isogonisms distribute, i.e. 120 degree angles.
Embodiment 2: with reference to accompanying drawing 2.On embodiment 1 basis, said impeller 6 both sides adopt three streamlined guide plates 2 that motor 4 is fixed in the axial-flow blower shell 5 respectively, and promptly 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.
Embodiment 3: on embodiment 1 basis; The wind cooling method of three-impeller axial flow fan of subway traction motor brake cooling system; Preceding impeller 1 in the three rachis flow fans on the coaxial motor 4 rotates the air quantity that is produced and is guided to back impeller 3 through impeller 6, and is derived by back impeller 3.
Embodiment 4: on embodiment 3 basis, the preceding impeller 1 in the three rachis flow fans on the coaxial motor 4 rotates the air quantity that is produced and is guided to back impeller 3 through streamlined guide plate 2 rectification and guide to impeller 6 and through impeller 6, and is derived by back impeller 3.
Embodiment 4: on the basis of embodiment 2 and 3; Preceding impeller 1 in the three rachis flow fans on the coaxial motor 4 rotate the air quantity that produced through streamlined guide plate 2 rectification and guide to impeller 6; Be guided to back impeller 3 again after the secondary rectification through 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 invention detailed text description of contrasting; But these text descriptions; Just the simple text of mentality of designing of the present invention is described; Rather than to the restriction of mentality of designing of the present invention, any combination, increase or modification that does not exceed mentality of designing of the present invention all falls in protection scope of the present invention.
Claims (1)
1. three-impeller axial flow fan of subway traction motor brake cooling system; It comprises Biimpeller axial fan of traction electric machine brake cooling system; It is characterized in that: the impeller that can rotate is housed on the fuselage of the motor in said Biimpeller axial fan of traction electric machine brake cooling system; Said impeller is that passive impeller and impeller set are on the outer ring of bearing; The inner ring of bearing is fixedly connected with the fuselage of motor, and the one or both sides of impeller adopt three streamlined guide plates that motor is fixed in the axial-flow blower shell, the streamlined in the shape of a spiral and isogonism distribution of described three streamlined guide plates; The air quantity that preceding wheel rotation produced in the three rachis flow fans on the coaxial motor is guided to the back impeller through streamlined guide plate rectification and guide to impeller and through impeller; And derived by the back impeller, the impeller that is positioned on the motor fuselage forms dynamic fit with preceding impeller, posterior lobe wheel, the air quantity that preceding impeller is produced quicken water conservancy diversion to after impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164218A CN101832283B (en) | 2010-05-06 | 2010-05-06 | Three- impeller axial flow fan of subway traction motor brake cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164218A CN101832283B (en) | 2010-05-06 | 2010-05-06 | Three- impeller axial flow fan of subway traction motor brake cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832283A CN101832283A (en) | 2010-09-15 |
| CN101832283B true CN101832283B (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010164218A Expired - Fee Related CN101832283B (en) | 2010-05-06 | 2010-05-06 | Three- impeller axial flow fan of subway traction motor brake cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101832283B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7004687B2 (en) * | 2019-07-01 | 2022-01-21 | リズム株式会社 | Blower |
| CN110566504A (en) * | 2019-10-15 | 2019-12-13 | 浙江上建风机有限公司 | Coaxial double-impeller fan |
| CN113864210A (en) * | 2021-10-19 | 2021-12-31 | 扎赉诺尔煤业有限责任公司 | Fan assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038958U (en) * | 1988-10-15 | 1989-06-07 | 广东省韶关风机厂 | Axial flow type electric fan |
| JPH07167088A (en) * | 1993-12-14 | 1995-07-04 | Yoshinori Oribe | Low noise high efficiency axial flow blower |
| CN100445569C (en) * | 2006-01-12 | 2008-12-24 | 上海交通大学 | Biimpeller axial fan of traction electric machine brake cooling system |
| CN100445568C (en) * | 2006-01-12 | 2008-12-24 | 上海交通大学 | Single impellor axial fan of traction electric machine brake cooling system |
-
2010
- 2010-05-06 CN CN201010164218A patent/CN101832283B/en not_active Expired - Fee Related
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| CN101832283A (en) | 2010-09-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130506 |