CN108895012A - A kind of EMU traction motor cooling wind unit - Google Patents
A kind of EMU traction motor cooling wind unit Download PDFInfo
- Publication number
- CN108895012A CN108895012A CN201810847655.0A CN201810847655A CN108895012A CN 108895012 A CN108895012 A CN 108895012A CN 201810847655 A CN201810847655 A CN 201810847655A CN 108895012 A CN108895012 A CN 108895012A
- Authority
- CN
- China
- Prior art keywords
- spiral case
- collector
- motor
- sealing ring
- impeller
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
Abstract
The invention discloses a kind of EMU traction motor cooling wind units, including：Mesh enclosure, collector, collector mounting plate, impeller, spiral case, motor, self-clamp type sealing joint strip and mounting rack, the spiral case end plate is fixedly connected with the mounting rack, the impeller is installed on the electric machine main shaft, inside the spiral case, the motor is connected with the mounting rack, the sealing ring is set on the outside of the spiral case end plate, the sealing ring diameter is less than the outer diameter of motor output driving end face, the height of the sealing ring is less than the distance between motor output driving end face and the spiral case end plate, and difference is 5~10mm.The self-clamp type sealing joint strip is mounted on sealing ring, and is contacted with motor output driving end face.The present invention uses hyperbolic disc, big spacing spiral case, and sealing ring and self-clamp type sealing joint strip are arranged between motor and spiral case, utmostly reduces blower fan group noise.
Description
Technical field
The present invention relates to motor-car technical field of heat dissipation more particularly to a kind of EMU traction motor cooling wind units.
Background technique
Traction electric machine cooling wind unit is widely used in EMU, the cooling for traction electric machine.Traction electricity at present
Machine cooling wind unit can be divided into two classes according to the connection type between driving motor and blower：One kind is that motor passes through motor
Ring flange is directly installed on volute of blower end plate；Another kind of is that motor is mounted on assembling by electric machine support leg
On frame, there are gaps between this kind of electric machine main shaft and volute of blower.Present invention is specifically directed to latter class cooling wind units.
The EMU for assembling such blower fan group has higher requirement to the electronic equipment noise installed thereon, it is therefore desirable to the greatest extent
It may be decreased blower fan group noise.
Summary of the invention
The present invention provides a kind of EMU traction motor cooling wind unit, to overcome above-mentioned technical problem.
EMU traction motor cooling wind unit of the present invention, including：Mesh enclosure, collector, collector mounting plate, impeller, snail
Shell, motor and mounting rack, the spiral case end plate are fixedly connected with the mounting rack, and the impeller is installed on the motor master
On axis, inside the spiral case, the motor is connected with the mounting rack, further includes：
Sealing ring and self-clamp type sealing joint strip, the sealing ring is set between the spiral case end plate and motor, described
Self-clamp type sealing joint strip is set between the sealing ring and the motor, and is contacted with motor output driving end face,
The sealing ring diameter is less than the outer diameter of motor output driving end face, and the height of the sealing ring is exported less than the motor
The distance between Driving plane and the spiral case, the distance between the sealing ring and motor output driving end face and described
The difference of sealing ring height is 5~10mm.
Further, the distance between the volute tongue of the spiral case and impeller outer edge and the ratio range of the impeller outer diameter are
0.075~0.1.
Further, the vane foil of the impeller is hyperbola, and blade is divided into：
Inducer and outlet section；The boundary of the inducer and the outlet section is located at the 3/4~4/5 of the blade
Locate, rounding angle at the vane inlet, the radius of corner 10mm~15mm.
Further, further include：
Collector mounting plate, the collector mounting plate are set between the collector and the spiral case, by the collection
Stream device is fixed on the outside of the spiral case front end-plate.
Further, the collector mounting plate is circle, sets gradually three layers of mounting hole, first layer peace outward from the center of circle
Dress hole is located at the two-end-point of diameter on first layer circumference, and for collector installation positioning, second layer mounting hole is located at second layer circle
Equally distributed eight points on week, for installing collector and mesh enclosure, third layer mounting hole is located on third layer circumference and uniformly divides
Eight points of cloth, for collector mounting plate to be mounted on spiral case, and for adjusting collector and impeller inlet radial clearance.
Sealing ring and self-clamp type sealing joint strip is arranged in the present invention between motor and spiral case, utmostly reduces blower fan group
Noise.By actual measurement, blower fan group can achieve 18 hereinafter, blower fan group energy consumption reaches 1 grade of level than A sound level.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is EMU traction motor cooling wind unit structural schematic diagram of the present invention；
Fig. 2 is seal ring structure schematic diagram of the present invention；
Fig. 3 is self-clamp type sealing joint strip structural schematic diagram of the present invention；
Fig. 4 is volute structure schematic diagram of the present invention；
Fig. 5 is hyperbola blade shape schematic diagram of the present invention；
Fig. 6 is collector main view of the present invention；
Fig. 7 is collector mounting plate main view of the present invention.
Drawing reference numeral explanation：
1- mesh enclosure；2- collector mounting plate；3- collector；4- impeller；5- spiral case；6- self-clamp type sealing joint strip；7- electricity
Machine；8- sealing ring；9- mounting rack；10- first layer mounting hole；11- second layer mounting hole；12- third layer mounting hole.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is EMU traction motor cooling wind unit structural schematic diagram of the present invention, as shown in Figure 1, the present embodiment is dynamic
Vehicle group traction electric machine cooling wind unit may include：
Mesh enclosure, collector, collector mounting plate, impeller, spiral case, motor and mounting rack, the spiral case end plate and institute
It states mounting rack to be fixedly connected, the impeller is installed on the electric machine main shaft, inside the spiral case, the motor and the installation
Frame is connected with, and further includes：
Sealing ring and self-clamp type sealing joint strip, the sealing ring is set between the spiral case end plate and motor, described
Self-clamp type sealing joint strip is set between the sealing ring and the motor, and is contacted with motor output driving end face,
The sealing ring diameter is less than the outer diameter of motor output driving end face, and the height of the sealing ring is exported less than the motor
The distance between Driving plane and the spiral case, the distance between the sealing ring and motor output driving end face and described
The difference of sealing ring height is 5~10mm.
Specifically, there are gap between electric machine main shaft and spiral case, thus electric machine main shaft some be in naked state.
Due to all included cooling fan of such blower fan group motor.Cooling wind will blow to motor output end from the fan end of motor, finally can
Enter inside blower fan group spiral case from the gap, generates whistle so as to cause blower.Electricity of the present embodiment between motor and spiral case
Sealing ring is arranged in owner's axis exposed part, as shown in Fig. 2, being provided with a sealing ring, the diameter of sealing ring on spiral case end plate
D1 is less than motor driven end face outside diameter d 2, and height h1 is less than spiral case end plate to the distance of motor driven end face, and the sealing ring
Difference DELTA h=5~the 10mm of the distance between motor output driving end face and the sealing ring height.It is equipped on sealing ring certainly
Clamped-in style sealing joint strip, self-clamp type sealing joint strip are clamped in one end that sealing ring is located at motor by the clamping section of bottom, from
The adjustable position of clamped-in style sealing joint strip is at the top of adhesive tape.The overhead height h2 of self-clamp type sealing joint strip should be greater than difference DELTA
H, and h2 >=Δ h+5.The structure of self-clamp type sealing joint strip is as shown in Figure 3.Solves EMU traction motor cooling wind unit
Whistle is led to the problem of, the noise of blower fan group is reduced.The EMU traction being mounted under motor-car in equipment compartment is prevented simultaneously
Motor cooling wind unit motor side portion is contaminated.Extend the service life of motor.
Further, the vane foil of the impeller is hyperbola, and blade is divided into：
Inducer and outlet section；The boundary of the inducer and the outlet section is located at the 3/4~4/5 of the blade
Locate, rounding angle at the vane inlet, radius of corner 10mm~15mm.
Specifically, as shown in figure 5, the suggestion of blade exit angle beta is less than 85 degree.Initial position is segmented to suggest from the 3/ of blade
4~4/5 arc length L1 start.Vane inlet section reduces noise, outlet section is for improving pressure for eliminating impeller inlet vortex.
The number of blade of impeller is advisable between 9~13.To further decrease noise, suggest carrying out rounding at vane inlet, fillet R exists
Between 10mm~15mm.
Further, the distance between the volute tongue of the spiral case and impeller outer edge and the ratio range of the impeller outer diameter are
0.075~0.1.Specifically, the volute tongue of the spiral case of the present embodiment is bigger than normal compared with conventional design with impeller outer edge gap.Guarantee full
In the case that sufficient pressure requires, while reducing noise.
Specifically, as shown in figure 4, volute tongue should be to the ratio between the outermost intermarginal distance of impeller and impeller blade outer diameter D 2
Between 0.075~0.1, i.e., 0.075<δ/D2<0.1.Blower can not be weakened in this range through simulation analysis and experimental test
Performance, moreover it is possible to weaken impact of the impeller outlet air-flow to volute tongue, reduce fan noise.
Further, further include：
Collector mounting plate, the collector mounting plate are set between the collector and the spiral case, by the collection
Stream device is fixed on the outside of the spiral case front end-plate.
Specifically, the EMU for assembling such blower fan group needs to carry out mesh enclosure, collector in the route maintenance
Disassembly.Since collector is inserted in impeller front disc, need to guarantee between the two a certain size, uniform radial clearance, come
Ensure that collector and impeller do not collide.The structure that ventilation blower uses in EMU at present is by adjusting collector installation
Hole site adjusts gap between the two, to maintenance personnel's skill requirement excessively high.
The collector mounting plate of the present embodiment is for fixing collector and mesh enclosure, while for adjusting collector and impeller
Radial clearance.The structure facilitates the maintenance of the disassembly of collector, blower fan group.
Further the collector mounting plate is circle, and first layer mounting hole is located at the both ends of diameter on first layer circumference
Point, for collector installation positioning, second layer mounting hole is located at equally distributed eight points on second layer circumference, for installing collection
Device and mesh enclosure are flowed, third layer mounting hole is located at equally distributed eight points on third layer circumference, for pacifying collector mounting plate
On spiral case, and for adjusting collector and impeller inlet radial clearance.
Specifically, two circle screw holes are arranged as shown in Figure 6 and Figure 7, on collector.Inner ring screw hole 2, exist for collector
The positioning of collector mounting plate.The two screwhole diameters on collector are 0.5~1mm bigger than the diameter of bolt used, and function is fixed
Position.Outer ring screw hole 6~8, for collector and mesh enclosure to be fixed on collector mounting plate.
One circle screw hole of outermost circle setting on collector mounting plate, intermediate and one ring nut of internal each setting.Outmost turns screw hole
For collector mounting plate to be fixed on spiral case front end-plate, and diameter between collector and impeller can be adjusted by outer ring screw hole
To gap.An intermediate ring nut is for installing collector, mesh enclosure (or filter transition air duct).Innermost circle nut is for positioning collection
Flow device.When maintenance, it is only necessary to ask and not dismantled among dismounting with internal-flange bolt, outmost turns bolt.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of EMU traction motor cooling wind unit, including：Mesh enclosure, collector, collector mounting plate, impeller, spiral case, electricity
Machine and mounting rack, the spiral case end plate are fixedly connected with the mounting rack, the impeller is installed on the electric machine main shaft,
Inside the spiral case, the motor is connected with the mounting rack, which is characterized in that further includes：
Sealing ring and self-clamp type sealing joint strip, the sealing ring are set between the spiral case end plate and motor, described from folder
Compact form sealing joint strip is set between the sealing ring and the motor, and is contacted with motor output driving end face, described
The outer diameter that ring diameter is less than motor output driving end face is sealed, the height of the sealing ring is less than the motor output driving
The distance between end face and the spiral case, the distance between the sealing ring and motor output driving end face and the sealing
The difference of ring height is 5~10mm.
2. EMU traction motor cooling wind unit according to claim 1, which is characterized in that the volute tongue of the spiral case with
The ratio range of the distance between impeller outer edge and the impeller outer diameter is 0.075~0.1.
3. EMU traction motor cooling wind unit according to claim 2, which is characterized in that the blade and blade of the impeller
Type is hyperbola, and blade is divided into：
Inducer and outlet section；The boundary of the inducer and the outlet section is located at the 3/4~4/5 of the blade, institute
State rounding angle at vane inlet, the radius of corner 10mm~15mm.
4. EMU traction motor cooling wind unit according to claim 1, which is characterized in that further include：
Collector mounting plate, the collector mounting plate are set between the collector and the spiral case, by the collector
It is fixed on the outside of the spiral case front end-plate.
5. EMU traction motor cooling wind unit according to claim 4, which is characterized in that the collector mounting plate
For circle, three layers of mounting hole are set gradually outward from the center of circle, first layer mounting hole is located at the two-end-point of diameter on first layer circumference,
It installs and positions for collector, second layer mounting hole is located at equally distributed eight points on second layer circumference, for installing afflux
Device and mesh enclosure, third layer mounting hole is located at equally distributed eight points on third layer circumference, for installing collector mounting plate
On spiral case, and for adjusting collector and impeller inlet radial clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810847655.0A CN108895012A (en) | 2018-07-27 | 2018-07-27 | A kind of EMU traction motor cooling wind unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810847655.0A CN108895012A (en) | 2018-07-27 | 2018-07-27 | A kind of EMU traction motor cooling wind unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108895012A true CN108895012A (en) | 2018-11-27 |
Family
ID=64352125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810847655.0A Pending CN108895012A (en) | 2018-07-27 | 2018-07-27 | A kind of EMU traction motor cooling wind unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108895012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233690A (en) * | 2021-12-20 | 2022-03-25 | 珠海格力电器股份有限公司 | Fan installation assembly, centrifugal fan assembly and machine room air conditioner |
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| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN204299940U (en) * | 2014-11-21 | 2015-04-29 | 广东三合环保通风设备有限公司 | A kind of rotating shaft sealing structure of centrifugal blower |
| CN104963885A (en) * | 2015-06-29 | 2015-10-07 | 萧振林 | Novel draft-fan-driven connecting and sealing device |
| CN205401187U (en) * | 2016-03-11 | 2016-07-27 | 株洲联诚集团有限责任公司 | Husky EMUs of high and cold anti -wind are with pulling fan |
| CN205478443U (en) * | 2016-03-31 | 2016-08-17 | 亿昇(天津)科技有限公司 | Magnetic suspension high speed centrifugation air -blower |
| CN206338219U (en) * | 2016-12-30 | 2017-07-18 | 台州四合风机有限公司 | A kind of centrifugal blower |
| WO2018040015A1 (en) * | 2016-08-31 | 2018-03-08 | 广东泛仕达机电有限公司 | Volute housing and forward multi-blade centrifugal fan |
| CN208778289U (en) * | 2018-07-27 | 2019-04-23 | 中车大连机车研究所有限公司 | A kind of EMU traction motor cooling wind unit |
-
2018
- 2018-07-27 CN CN201810847655.0A patent/CN108895012A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202856596U (en) * | 2012-08-09 | 2013-04-03 | 阳光电源股份有限公司 | Sealing structure of inversion device |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN204299940U (en) * | 2014-11-21 | 2015-04-29 | 广东三合环保通风设备有限公司 | A kind of rotating shaft sealing structure of centrifugal blower |
| CN104963885A (en) * | 2015-06-29 | 2015-10-07 | 萧振林 | Novel draft-fan-driven connecting and sealing device |
| CN205401187U (en) * | 2016-03-11 | 2016-07-27 | 株洲联诚集团有限责任公司 | Husky EMUs of high and cold anti -wind are with pulling fan |
| CN205478443U (en) * | 2016-03-31 | 2016-08-17 | 亿昇(天津)科技有限公司 | Magnetic suspension high speed centrifugation air -blower |
| WO2018040015A1 (en) * | 2016-08-31 | 2018-03-08 | 广东泛仕达机电有限公司 | Volute housing and forward multi-blade centrifugal fan |
| CN206338219U (en) * | 2016-12-30 | 2017-07-18 | 台州四合风机有限公司 | A kind of centrifugal blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233690A (en) * | 2021-12-20 | 2022-03-25 | 珠海格力电器股份有限公司 | Fan installation assembly, centrifugal fan assembly and machine room air conditioner |
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