CN208686625U - A kind of cooling centrifugal blower of EMU traction motor - Google Patents
A kind of cooling centrifugal blower of EMU traction motor Download PDFInfo
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- CN208686625U CN208686625U CN201821280861.XU CN201821280861U CN208686625U CN 208686625 U CN208686625 U CN 208686625U CN 201821280861 U CN201821280861 U CN 201821280861U CN 208686625 U CN208686625 U CN 208686625U
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- motor
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Abstract
The utility model relates to a kind of cooling forward centrifugal blowers of EMU traction motor, including spiral case, impeller, air inlet duct, motor, resilient cushion, impeller is preceding to arc plate structure, to reduce the outer dimension of blower, adapt to installation space narrow in equipment cabin of motor train unit, the weight for mitigating blower simultaneously, meets EMU lightweight requirements.Motor is by flanged joint on spiral case side plate, blower is entirely through on the vertical crossbeam being mounted in equipment cabin of motor train unit of the Rubber shock-absorbing pad in spiral case mounting base, resilient cushion plays vibration damping and vibration isolation, actual measurement vibration velocity≤3.5mm/s of blower during fan operation.The effective diameter of impeller is small, has reached very high than A sound level level, has met EMU low noise requirement.The indexs such as aeroperformance, weight, the vibration of the cooling blower have all reached very high level, are a very outstanding forward centrifugal blowers.
Description
Technical field
What is involved is a kind of cooling centrifugal blowers of EMU traction motor for the present utility model, are used for EMU traction
The cooling heat dissipation of motor, guarantees that traction electric machine works normally, belongs to field of fluid machinery.
Background technique
With track transportation industry high speed development, the weight of comfort and unit power to public transportation equipment
It is required that also higher and higher, especially high-speed EMUs, the size of level of noise and the weight of unit power are to evaluate its equipment performance
Important indicator whether superior in quality, in addition vibration equipment is also an important factor for influencing compartment comfort.Therefore, motor-car
Group ventilation blower is under the premise of meeting performance requirement, it is necessary to accomplish low noise, low vibration, lightweight, densification.
According to the but blower requirement of EMU traction motor, blower is preceding to arc plate centrifugal impeller structure, passes through mounting base
It is mounted on the crossbeam in equipment cabin of motor train unit, motor is horizontal installation.Compressor flow requires to be not less than 0.64 m3/ s, static pressure
It is required that being not less than 2100 Pa, actual measurement acoustic power level is not more than 94 dB(A), blower gross weight is not more than 60kg.
Summary of the invention
The purpose of the utility model is to overcome the limitations of equipment cabin of motor train unit installation space, provide simple and compact for structure, peace
Dress is convenient, and light-weight, low noise, efficient high-speed EMUs lead motor cooling fan, and meets dissipating for traction electric machine
Heat demand.
The technical solution of the utility model includes:
A kind of cooling centrifugal blower of EMU traction motor, including spiral case, impeller, air inlet duct, motor, resilient cushion, institute
The centrifugal blower stated is forward centrifugal blower, and motor flange is connect with spiral case, and impeller is mounted on motor-shaft extending by core wheel, into
Band filter screen, filter screen are woven by stainless steel wire at tunnel inlet, and steel wire snaps in Double-layer flange, and filter screen is whole
It is connected by screw rod with the flange of air inlet duct.Mounting base is welded on spiral case side plate, mounting base is using metal plate bending and is provided with
Reinforcing rib, blower is entirely through on the vertical installation crossbeam being mounted in equipment cabin of motor train unit of four resilient cushions in mounting base；
The impeller is made of rear trochal disc, preceding wheel disc, core wheel and blade, i.e., impeller is dextrorotation impeller, and wheel body is by preceding
Wheel disc, rear trochal disc and blade are welded, and core wheel and wheel body weld together wherein, and blade is arc plate structure, quantity 23
Piece, preceding wheel disc are bell mouth shape structure, and core wheel and rear trochal disc pass through welded connecting；The impeller is preceding to arc plate structure.
Blower uses forward centrifugal impeller, high pressure and air quantity needed for being provided with higher efficiency, while compared to rear
To centrifugal blower, have lower than A sound level, is able to achieve low noise requirement.
Its mounting structure is simple, and mounting base is welded on spiral case side plate, and mounting base is connect by resilient cushion with car body, structure
Rigidity is strong, and fan operation vibration values are low.
This ventilation blower is connected to body apparatus cabin installation cross by the Rubber shock-absorbing pad of 4 mounting holes in spiral case mounting base
Beam carries out vibration isolation to blower by resilient cushion, influence of the fan vibration to car body is effectively reduced, improves the comfort of vehicle；Electricity
Machine is connect by flange with spiral case side plate, and spiral case and air inlet duct are formed using aluminium alloy sheet weld, and complete blower weight is small, just
Property is strong, meets lightweight and the requirement of low vibration.
Focusing on for the utility model is preceding to impeller pneumatic structure, minimizes the outer dimension of blower.According to
The characteristics of forward centrifugal blower, designs reasonable increase spiral case and guarantees blower under the premise of exporting required pressure and air quantity
High efficiency, low noise.Simultaneously because spiral case is all made of aluminium alloy sheet weld, light weight.Mounting base design uses aluminum alloy thin
Plate welding, local strengthening muscle are reinforced, and the weight of blower is effectively reduced；In addition motor is using wide warm grease bearing, operating temperature
Range is -40 DEG C ~+160 DEG C, guarantees that motor can work normally under various environment temperatures.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model
Fig. 2 is spiral case side plate structural schematic diagram
The structural schematic diagram of Fig. 3 the utility model
Fig. 4 is the structural schematic diagram of blade；
Fig. 5 is blade wheel structure schematic diagram
In figure: wheel disc, 8- core wheel before 1- spiral case, 2- impeller, 3- air inlet duct, 4- motor, 5- resilient cushion, 6- rear trochal disc, 7-
With 9- blade.
Specific embodiment
Referring to attached drawing, a kind of cooling centrifugal blower of EMU traction motor, including spiral case 1, impeller 2, air inlet duct 3, electricity
Machine 4, resilient cushion 5
The centrifugal blower is forward centrifugal blower, and 4 flange of motor is connect with spiral case 1, and impeller 2 is mounted on by core wheel
4 axis of motor is stretched, and 3 inlet of air inlet duct band filter screen, filter screen is woven by stainless steel wire, and steel wire is snapped in two tier approach
Lan Zhong, filter screen are connected entirely through screw rod with the flange of air inlet duct 3.Mounting base is welded on 1 side plate of spiral case, mounting base uses
Metal plate bending and it is provided with reinforcing rib, blower is mounted on equipment cabin of motor train unit entirely through four resilient cushions 5 are vertical in mounting base
On interior installation crossbeam；
The impeller 2 is made of rear trochal disc 6, preceding wheel disc 7, core wheel 8 and blade 9, i.e., impeller 2 is dextrorotation impeller, wheel body
It is to be welded by preceding wheel disc 7, rear trochal disc 6 and blade 9, core wheel 8 and wheel body weld together wherein, and blade 9 is that circular arc is hardened
Structure, quantity are 23, and preceding wheel disc 7 is bell mouth shape structure, and core wheel 8 and rear trochal disc 6 pass through welded connecting；The impeller 2 is
Forward direction arc plate structure.
The cooling motor 4 in forward centrifugal blower of this EMU traction motor passes through flanged joint on 1 side plate of spiral case, wind
Machine is entirely through on the vertical crossbeam being mounted in equipment cabin of motor train unit of the Rubber shock-absorbing pad in mounting base, and resilient cushion is by blower
Vibration is isolated with car body, meets low vibration requirement.Mounting base improves stiffness and strength using metal plate bending and reinforcing rib, is welded on
On spiral case side plate, most of weight (including motor, impeller) of blower is carried.It is preceding to impeller due to using, to a certain extent
The effective diameter for reducing blower, makes the running noises of blower also be maintained at an excellent level, and declared working condition surveys acoustical power
Grade is about 93.2dB (A).
Claims (3)
1. a kind of cooling centrifugal blower of EMU traction motor, including spiral case (1), impeller (2), air inlet duct (3), motor (4),
Resilient cushion (5) it is characterized by:
The centrifugal blower is forward centrifugal blower, and motor (4) flange is connect with spiral case (1), and impeller (2) is installed by core wheel
In motor (4), axis is stretched, and air inlet duct (3) inlet is equipped with filter screen, and filter screen is woven by stainless steel wire, and steel wire is embedding
It is pressed in Double-layer flange, filter screen is connected entirely through screw rod with the flange of air inlet duct (3)；Peace is welded on spiral case (1) side plate
Seat is filled, mounting base is using metal plate bending and is provided with reinforcing rib, and blower is entirely through four vertical peaces of resilient cushion (5) in mounting base
On installation crossbeam in equipment cabin of motor train unit.
2. a kind of cooling centrifugal blower of EMU traction motor according to claim 1, it is characterised in that the leaf
Wheel (2) be made of rear trochal disc (6), preceding wheel disc (7), core wheel (8) and blade (9), i.e., impeller (2) be dextrorotation impeller, wheel body be by
Preceding wheel disc (7), rear trochal disc (6) and blade (9) are welded, and core wheel (8) and wheel body weld together wherein, and blade (9) is circle
The hardened structure of arc, quantity are 23, and preceding wheel disc (7) is bell mouth shape structure, and core wheel (8) and rear trochal disc (6) pass through welded connecting.
3. a kind of cooling centrifugal blower of EMU traction motor according to claim 1 or 2, it is characterised in that described
Impeller (2) is preceding to arc plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280861.XU CN208686625U (en) | 2018-08-09 | 2018-08-09 | A kind of cooling centrifugal blower of EMU traction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280861.XU CN208686625U (en) | 2018-08-09 | 2018-08-09 | A kind of cooling centrifugal blower of EMU traction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686625U true CN208686625U (en) | 2019-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821280861.XU Active CN208686625U (en) | 2018-08-09 | 2018-08-09 | A kind of cooling centrifugal blower of EMU traction motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145495A (en) * | 2019-06-11 | 2019-08-20 | 佛山市晟昊通风机有限公司 | A kind of structure of efficient centrifugal air inlet |
-
2018
- 2018-08-09 CN CN201821280861.XU patent/CN208686625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145495A (en) * | 2019-06-11 | 2019-08-20 | 佛山市晟昊通风机有限公司 | A kind of structure of efficient centrifugal air inlet |
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