CN205064324U - Cooling of EMUs traction motor is with two air -out formula centrifugal fan - Google Patents
Cooling of EMUs traction motor is with two air -out formula centrifugal fan Download PDFInfo
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- CN205064324U CN205064324U CN201520813212.1U CN201520813212U CN205064324U CN 205064324 U CN205064324 U CN 205064324U CN 201520813212 U CN201520813212 U CN 201520813212U CN 205064324 U CN205064324 U CN 205064324U
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Abstract
The utility model relates to a cooling of EMUs traction motor is with two air -out formula centrifugal fan, including the impeller right side, motor, electrical connector, an impeller left side, intake duct, filtration screen panel, spiral case, mounting bracket, support frame, its characterized in that the fan is whole to adopt one to drag two pairs of air -out structures, and two spiral cases are taken certainly to two impellers of a motor drive. The left and right side inlet of fan admits air simultaneously, the air -out simultaneously of both sides spiral case, and two traction motor provide the cooling air for EMUs. Fan wheel adopts traditional circular arc board blade, and preceding rim plate all adopts spinning turn -ups diffusion structure with the back rim plate, reduces fan flow losses and noise, improves the efficiency of fan. The motor is horizontal to be installed on the mounting panel, and through four group's bolt fastenings, the both sides spiral case is supported by the support frame, and mounting bracket and spiral case are the welding of high -quality aluminum alloy and form. The fan air intake sets up the filtration screen panel, filters the air that admits air, prevents that the fan from stopping up. Fan overall structure is compact, operation small in noise, and vibration performance is excellent.
Description
Technical field
The utility model relates to a kind of two air-out type centrifugal blower, particularly the two air-out type centrifugal blower of a kind of rail motor set traction electric machine cooling.For EMU traction electric machine cooling heat dissipation, belong to field of fluid machinery.
Background technique
Traction electric machine is the critical component of rail motor set high speed operation.During traction electric machine work, motor internal winding produces a large amount of heats.For preventing traction electric machine from crossing cause thermal damage, ensure that the normal work of rail motor set, needing supporting ventilator to force heat radiation to traction electric machine, is parts indispensable in trailer system.
At present, traction electric machine cooling centrifugal blower is arranged on the equipment compartment on motor train unit bogie side, cools two traction electric machines of rail motor set diverse location simultaneously; Namely a Fans cools two traction electric machines simultaneously.Because equipment compartment installing space is limited, so must effectively control blower fan boundary dimension, make its compact structure, could requirements of installation space be met.Cooling blower must can overcome larger aerodynamical resistance and provide enough cooling air quantities, to meet the cooling heat dissipation demand of traction electric machine simultaneously.On the other hand, in view of the requirement of comfort of passenger, the noise figure general control of rail motor set sound-generating element is at below 85dB, traction electric machine cooling blower is as one of sound-generating element topmost on rail motor set, design must be considered the noise level reducing blower fan, to improve motor train unit carriage environment overall comfort.For solving the problem, research and development must meet the compact structure of rail motor set requirement, the traction electric machine cooling blower of low noise, as far as possible under the prerequisite meeting traction electric machine cooling heat dissipation demand, improving the comfort level of occupant.
Summary of the invention
The purpose of this utility model is to overcome existing technological difficulties and spatial constraints, provides a kind of compact structure, lightweight, the two air-out type centrifugal blower of low noise, high efficiency rail motor set traction electric machine cooling.
The technical solution of the utility model: the two air-out type centrifugal blower of a kind of rail motor set traction electric machine cooling, comprise impeller, motor, electrical cnnector, intake duct, filtering screen, spiral case, scaffold, supporting frame, it is characterized in that in described two air-out type centrifugal blowers, being provided with two impellers, two intake ducts, two filtering screens and two spiral cases, wherein, two impellers are respectively lobus sinister wheel and lobus dexter wheel, and lobus sinister wheel is left-handed centrifugal impeller; Lobus dexter wheel is dextrorotation centrifugal impeller; Two impellers are outlet diffusion structure; Two intake ducts are separately positioned on the ventilator left and right sides; Two filtering screens are separately positioned on the intake duct of the ventilator left and right sides;
Two described impellers are by core wheel, rear trochal disc, front wheel disc and blade composition, and wherein, blade is circular arc plate structure, and rear trochal disc and front wheel disc outlet port are spinning turnup structure;
Two described spiral cases are formed by front side plate, top board, back side panel, exhaust outlet flange welding; Motor adopts threephase asynchronous.
Two described blade wheel structures are identical, and blade quantity is not identical, and namely lobus sinister impeller blade quantity is 14, and lobus dexter impeller blade quantity is 10.
This pair of air-out type centrifugal blower entirety have employed one drag two structural type, and namely a double-axis motor drives left and right two impellers to air acting in two spiral cases simultaneously, finally from left and right two spiral case exhaust outlets output high pressure cooling-air.This pair of air-out type centrifugal blower is arranged on car body crossbeam by four mounting holes on scaffold in the mode that elasticity is installed, and is connected by four resilient rubbber cushions.The horizontal installation of motor, is directly hung on scaffold by mounting base.Blower fan left and right sides spiral case is connected with scaffold by supporting frame, and on the spiral case panel of both sides, each installation filtering screen and intake duct, prevent air inlet from blocking, realize the efficient air inlet of blower fan.
The structural type focusing on have employed the two air-out of one drag two of the present utility model, when equipment compartment bulk is limited, the blower fan that two are carried out cooling heat dissipation to different traction electric machine is integrated on same blower fan, a motor is used to drive two impeller actings, the air inlet simultaneously of blower fan arranged on left and right sides intake duct, the air-out simultaneously of both sides spiral case, for rail motor set two traction electric machines provide cooling air.This structure reduces the axial dimension of blower fan to greatest extent, improves the utilization ratio of equipment compartment.On the other hand, the intake duct of blower fan, spiral case, the structure such as scaffold and supporting frame all adopt fine aluminum alloy material, under the prerequisite ensureing blower fan overall construction intensity, reduce the weight of blower fan to greatest extent, meet the compactedness of rail motor set cooling blower, lightweight requirements.Draught fan impeller adopts traditional arc plate blade, lengthened vanes, the runner of air in impeller is lengthened, before impeller, wheel disc and rear trochal disc outlet adopt flange diffusion form, reduce impeller outlet flow velocity, improve the static pressure of impeller outlet, reduce hydrodynamic noise and the frictional loss of air, thus reduce the running noises of blower fan.Snail tongue position design comparison is level and smooth, and snail tongue and blade pitch, from moderate, to reduce the eddy current loss of blower fan snail tongue position, improve the volume efficiency of blower fan, reduce eddy current crack.The horizontal installation of fan motor on a mounting board, is fixed by four groups of bolts, adopts the design of H class B insulation, improves electrical machine insulation parts heat resistance; Support design casting radiating fin, adopts the self cooling forced ventilation of fan, strengthens the radiating effect of motor; Motor adopts wide temperature grease bearing in addition, and its operating temperature range is-40 DEG C ~ 160 DEG C, ensures that motor can normally work at ambient temperature.This pair of air-out type centrifugal blower compact overall structure, running noises is little, and vibration performance is excellent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional structure schematic diagram;
Fig. 3, Fig. 4 are the structural representation of impeller;
In figure: wheel disc, 17-blade before the 1-impeller right side, 2-motor, 3-electrical cnnector, a 4-impeller left side, 5-intake duct, 6-filtering screen, 7-spiral case, 8-scaffold, 9-supporting frame, 10-front side plate, 11-top board, 12-back side panel, 13-exhaust outlet flange, 14-core wheel, 15-rear trochal disc, 16-.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the two air-out type centrifugal blower of a kind of rail motor set traction electric machine cooling, comprise impeller, motor 2, electrical cnnector 3, intake duct 5, filtering screen 6, spiral case 7, scaffold 8, supporting frame 9, it is characterized in that: in described two air-out type centrifugal blowers, be provided with two impellers, two intake ducts, 5, two filtering screens 6 and two spiral cases 7, wherein, two impellers are respectively lobus sinister wheel 4 and lobus dexter wheel 1, and lobus sinister wheel 4 is left-handed centrifugal impeller; Lobus dexter wheel 1 is dextrorotation centrifugal impeller; Two impellers are outlet diffusion structure; Two intake ducts 5 are separately positioned on the ventilator left and right sides; Two filtering screens 6 are separately positioned on ventilator left and right sides intake duct 5;
Two described impellers form by core wheel 14, rear trochal disc 15, front wheel disc 16 and blade 17, and wherein, blade 17 is circular arc plate structure, and rear trochal disc 15 and front wheel disc 16 outlet port are spinning turnup structure;
Two described spiral cases 7 are welded by front side plate 10, top board 11, back side panel 12, exhaust outlet flange 13.
Two described blade wheel structures are identical, and blade quantity is not identical, and namely lobus sinister takes turns 4 blade quantities is 14, and it is 10 that lobus dexter takes turns 1 blade quantity.
The horizontal installation of motor in this pair of air-out type centrifugal blower on a mounting board, is fixed by four groups of bolts, and scaffold 8 forms for high-quality Welded, adopts stiffening rib to improve rigidity, most of weight (comprising motor, impeller) of carrying blower fan.Both sides spiral case 7 is supported by supporting frame 9, is improved the vibration shape of blower fan, avoid blower fan to resonate by the height improving supporting frame 9, reduces the vibration of blower fan in running.The blade passage lengthened and the diffusion structure at impeller outlet place can improve the aeroperformance of blower fan, reduce blower fan flow losses and noise, improve the efficiency of blower fan.The monolateral total pressure efficiency of blower fan reaches 75%, and the running noises of blower fan also remains on an excellent level, and declared working condition average sound pressure level is about 83dB (A).
Claims (2)
1. the two air-out type centrifugal blower of rail motor set traction electric machine cooling, comprises impeller, motor (2), electrical cnnector (3), intake duct (5), filtering screen (6), spiral case (7), scaffold (8), supporting frame (9), it is characterized in that:
Two impellers, two intake ducts (5), two filtering screens (6) and two spiral cases (7) are provided with in A, described two air-out type centrifugal blowers, wherein, two impellers are respectively lobus sinister wheel (4) and lobus dexter wheel (1), and lobus sinister wheel (4) is left-handed centrifugal impeller; Lobus dexter wheel (1) is dextrorotation centrifugal impeller; Two impellers are outlet diffusion structure; Two intake ducts (5) are separately positioned on the ventilator left and right sides; Two filtering screens (6) are separately positioned on ventilator left and right sides intake duct (5);
Two described impellers are by core wheel (14), rear trochal disc (15), front wheel disc (16) and blade (17) composition, and wherein, blade (17) is circular arc plate structure, and rear trochal disc (15) and front wheel disc (16) outlet port are spinning turnup structure;
B, described two impellers are equipped with spiral case (7), and spiral case (7) is welded by front side plate (10), top board (11), back side panel (12), exhaust outlet flange (13).
2. two air-out type centrifugal blower as claimed in claim 1, it is characterized in that two described blade wheel structures are identical, blade quantity is not identical, and namely lobus sinister wheel (4) blade quantity is 14, and lobus dexter wheel (1) blade quantity is 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813212.1U CN205064324U (en) | 2015-10-21 | 2015-10-21 | Cooling of EMUs traction motor is with two air -out formula centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813212.1U CN205064324U (en) | 2015-10-21 | 2015-10-21 | Cooling of EMUs traction motor is with two air -out formula centrifugal fan |
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| Publication Number | Publication Date |
|---|---|
| CN205064324U true CN205064324U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520813212.1U Active CN205064324U (en) | 2015-10-21 | 2015-10-21 | Cooling of EMUs traction motor is with two air -out formula centrifugal fan |
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| CN (1) | CN205064324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678062A (en) * | 2017-03-24 | 2017-05-17 | 株洲联诚集团有限责任公司 | Cooling ventilator for locomotive traction transformer |
| CN108953175A (en) * | 2018-09-13 | 2018-12-07 | 株洲联诚集团控股股份有限公司 | A kind of motor train unit converter forward multiple wing formula riveting double-impeller centrifugal ventilation blower |
-
2015
- 2015-10-21 CN CN201520813212.1U patent/CN205064324U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678062A (en) * | 2017-03-24 | 2017-05-17 | 株洲联诚集团有限责任公司 | Cooling ventilator for locomotive traction transformer |
| CN106678062B (en) * | 2017-03-24 | 2022-11-18 | 株洲联诚集团有限责任公司 | Cooling ventilator for locomotive traction transformer |
| CN108953175A (en) * | 2018-09-13 | 2018-12-07 | 株洲联诚集团控股股份有限公司 | A kind of motor train unit converter forward multiple wing formula riveting double-impeller centrifugal ventilation blower |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230630 Address after: No. 66 and 68 Liancheng Road, Shifeng District, Zhuzhou City, Hunan Province, 412000 Patentee after: HUNAN LINCE ROLLING STOCK EQUIPMENT Co.,Ltd. Address before: 412000 technical management department, Lianxin group, Tianxin north gate, Shifeng District, Zhuzhou, Hunan Patentee before: ZHUZHOU LINCE GROUP Co.,Ltd. |