CN102832744A - Cooling device arranged at motor air outtake end - Google Patents
Cooling device arranged at motor air outtake end Download PDFInfo
- Publication number
- CN102832744A CN102832744A CN2012103240135A CN201210324013A CN102832744A CN 102832744 A CN102832744 A CN 102832744A CN 2012103240135 A CN2012103240135 A CN 2012103240135A CN 201210324013 A CN201210324013 A CN 201210324013A CN 102832744 A CN102832744 A CN 102832744A
- Authority
- CN
- China
- Prior art keywords
- cooling fan
- cooling
- rotating shaft
- end cap
- fan
- 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
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a cooling device arranged at a motor air outtake end. The cooling device is mainly characterized by comprising an end cover, a rotating shaft and a rotor, wherein the end cover is connected with a shell air outtake end and is provided with an end cover through hole; a rotor pressing plate is arranged at a side end of the rotor; a cooling fan is arranged between a cavity between the rotor pressing plate and the end cover; the cooling fan is connected with a rotating shaft statically; the cooling fan is provided with a fan labyrinth ring which is integrally made with the cooling fan; and a labyrinth sealing structure is formed by the fan labyrinth ring and an end cover labyrinth ring which is connected with the end cover and is in moving match with the rotating shaft. The cooling device not only has good cooling effects to a motor bearing, but also is compact and reasonable in axial installation.
Description
Technical field
The present invention relates to a kind of motor cooling device, be specifically related to a kind of cooling device that is located at the motor air opening end of traction electric machine of the forced air cooling that is applicable to high-power electric locomotive traction motor and light rail vehicle.Certainly, the present invention also is suitable for the motor of other purposes.
Background technology
Motor bearings is the vitals that guarantees the motor operation, and guarantees that the performance of motor bearings is very important for motor.Yet motor bearings can greatly influence the life-span of bearing and bearing grease because frictional damping produces great amount of heat when running up.The type of cooling that temperature rise is carried out for motor bearings at present mainly is to cool off through the heat radiation of self; This type of cooling is not high for some rotating speeds, and the little motor of load still can be satisfied the demand, but is not enough for high-power, high-revolving traction electric machine; It is to carry the cooling air of coming through cooling blower; Get into by the air channel, air port of connected forced air cooling motor, after wind to be cooled gets into motor, and heat is taken away through the air outlet of motor; Usually external air source is connected with the air inlet of motor, and is blown into cooling air in the motor, and motor finally is from air opening end heat to be discharged.The air inlet of motor since cooling air blast is big when just coming in, temperature is low and cooling effect is fine, but be positioned at the air outlet of motor air opening end, can be because blast be little, make local area (for example bearing portion) can not blow cooling air and overheated.If simple increasing cooling air quantity, not only effect is bad also uneconomical.Therefore; (traction electric machine receives the width limitations of rail under the serious limited situation of the size of traction electric machine and weight; Seriously limited in its axial length); A kind of cooling device must be arranged in that axially installation dimension is little, can effectively alleviate near bearing of forced air cooling motor air outlet and the not enough problem of stator coil heat radiation again.
For this reason; A kind of good cooling results is proposed; The motor bearings cooling device that is positioned at air opening end of compact dimensions utilizes this device to improve near the bearing of motor air outlet and the radiating effect of stator coil, reduces the bearing operating temperature greatly; And can play the restrict rotor silicon steel laminations in axial displacement, just become expectation in the industry.
Summary of the invention
The object of the present invention is to provide a kind of not only good cooling results; And do not change the structure of existing said motor basically; In less axial installing space scope, be located at the cooling device of motor air opening end; Not enough to solve existing in prior technology, this cooling device can effectively improve near the bearing of motor air outlet and the radiating effect of stator coil, reduces the operating temperature of bearing greatly.
In order to achieve the above object; The technical scheme that the present invention adopts is; A kind of cooling device that is located at the motor air opening end comprises the end cap with end cap through hole, rotating shaft and the rotor that are connected with the casing air opening end, is provided with the rotor pressing plate at the side of rotor; And its: be provided with cooling fan in the cavity between said rotor pressing plate and the end cap; Said cooling fan and rotating shaft static connection, said cooling fan are provided with and its fan labyrinth ring of one each other, said fan labyrinth ring be connected with end cap and constitute labyrinth seal structure with rotating shaft end cap labyrinth ring movingly.
In technique scheme, the flabellum of said cooling fan is provided with through hole, and the end cap through hole of through hole and end cap connects.
In technique scheme, the air-out mouth mask also is equipped with in the outside of said end cap, and the air outlet on the air-out mouth mask and end cap through hole connect.
In technique scheme, said cooling fan is the cast aluminium cooling fan; And the static connection of said cast aluminium cooling fan and rotating shaft is the steel bushing that is connected through with the casting of cast aluminium cooling fan, be the secondary static connection of keyway with rotating shaft, or steel bushing is enclosed within the static connection in the rotating shaft through the heating after heat.Said casting connects, and is to be inserts with the steel bushing, through the cooling fan die casting both is connected.
The course of work of the present invention and beneficial effect thereof are: because after adopting said apparatus; Cooling fan is along with machine shaft rotates together; When cooling fan turns round, will be drawn in the motor through the cooling air that cooling air inlet gets into motor, directly blow to the inner surface of the end cap of bearing; Device to bearing portion cools off, and directly motor bearings is cooled off; Meanwhile, cooling fan has strengthened blast and the wind speed that rotor and stator coil are positioned at air opening end, has taken away the heat of stator coil end and rotor coil end.Realized the object of the invention.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present invention, and wherein, 3 is bearing, and 5 is stator coil, and 11 is that rotor air channel, 12 is the stator air channel.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides, the present invention is described further, but is not limited to this.
As shown in Figure 1; A kind of cooling device that is located at the motor air opening end; Comprise the end cap 2 with end cap through hole 2-1, rotating shaft 4 and the rotor 9 that are connected with casing 1 air opening end; Side at rotor 9 is provided with rotor pressing plate 7, is provided with cooling fan 6 in the cavity between said rotor pressing plate 7 and the end cap 2, said cooling fan 6 and rotating shaft 4 static connections; Said cooling fan 6 is provided with and its fan labyrinth ring 6-1 of one each other, and said fan labyrinth ring 6-1 is with that be connected with end cap 2 and constitute labyrinth seal structures with rotating shaft 4 end cap labyrinth ring 8 movingly.Cooling fan 6 of the present invention axially can play the phenomenon that axial displacement appears in restrict rotor 9 in the running, promptly can live rotor 9 at axial restraint; And the fan labyrinth ring 6-1 of cooling fan 6 has carried out labyrinth seal with the equipped mutually back of end cap labyrinth ring 8 to bearing 4; The benefit of doing like this is to have replaced an independent labyrinth ring at axial fan labyrinth ring 6-1 with cooling fan 6; Reduce the number of corresponding part assembling, practiced thrift axial installing space.
As shown in Figure 1; In order to make the cooling air that gets into motor internal can form the back that the multiply air-flow gets into cooling fan; Form the cyclone eddy current; With the cooling effect of further raising motor air opening end, the flabellum 6-2 of said cooling fan 6 is provided with through hole 6-2-1, and the end cap through hole 2-1 of through hole 6-2-1 and end cap 2 connects.
As shown in Figure 1, get into motor internal in order to prevent big foreign matter, influence the reliability of its use, air-out mouth mask 10 also is equipped with in the outside of said end cap 2, and the air outlet 10-1 on the air-out mouth mask 10 and end cap through hole 2-1 connect.Certainly, can prevent effectively that also operating personnel's finger from putting in the motor of running, safe.
As shown in Figure 1, the cooling fan 6 that the present invention actively recommends is the cast aluminium cooling fan, and the static connection of said cast aluminium cooling fan 6 and rotating shaft 4, is to be the secondary static connection of keyway through steel bushing 6-3 and the rotating shaft 4 that is connected with 6 castings of cast aluminium cooling fan.Can certainly be steel bushing 6-3 be enclosed within the rotating shaft 4 through the heating after heat, and makes cooling fan 6 and rotating shaft 4 static connections.Can avoid like this because the aluminum cooling fan directly is axis hole with rotating shaft and cooperates, other reasons such as the long-term stressed deformation of creep of meeting cause the fit dimension of aluminium matter cooling fan and rotating shaft to become big, also can occur the phenomenon that gets loose with rotating shaft when serious.Facts have proved, adopt the cast aluminium fan that has steel bushing of the present invention, more much longer than the useful life of cast aluminium fan.
Lab scale effect of the present invention shows that the cooling device of this structure is good cooling results not only, and is fit to existing said motor is transformed, and has realized original intention of the present invention.
Claims (4)
1. cooling device that is located at the motor air opening end; Comprise the end cap with end cap through hole (2-1) (2), rotating shaft (4) and the rotor (9) that are connected with casing (1) air opening end; Side at rotor (9) is provided with rotor pressing plate (7); It is characterized in that: be provided with cooling fan (6) in the cavity between said rotor pressing plate (7) and the end cap (2); Said cooling fan (6) and rotating shaft (4) static connection; Said cooling fan (6) is provided with and its fan labyrinth ring (6-1) of one each other, said fan labyrinth ring (6-1) be connected with end cap (2) and constitute labyrinth seal structure with rotating shaft (4) end cap labyrinth ring (8) movingly.
2. the cooling device that is located at the motor air opening end according to claim 1 is characterized in that: the flabellum (6-2) of said cooling fan (6) is provided with through hole (6-2-1), and the end cap through hole (2-1) of through hole (6-2-1) and end cap (2) connects.
3. the cooling device that is located at the motor air opening end according to claim 1 is characterized in that: air-out mouth mask (10) also is equipped with in the outside of said end cap (2), and the air outlet (10-1) on the air-out mouth mask (10) connects with end cap through hole (2-1).
4. the cooling device that is located at the motor air opening end according to claim 1 is characterized in that: said cooling fan (6) is the cast aluminium cooling fan; And the static connection of said cast aluminium cooling fan (6) and rotating shaft (4); It is the steel bushing (6-3) that is connected through with cast aluminium cooling fan (6) casting; Be the secondary static connection of keyway with rotating shaft (4), or steel bushing (6-3) is enclosed within the static connection in the rotating shaft (4) through the heating after heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103240135A CN102832744A (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at motor air outtake end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103240135A CN102832744A (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at motor air outtake end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102832744A true CN102832744A (en) | 2012-12-19 |
Family
ID=47335756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103240135A Pending CN102832744A (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at motor air outtake end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102832744A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138461A (en) * | 2013-03-13 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Generator strengthened bearing housing seal structure used for dumper |
| CN106382261A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Air cooling structure of magnetic suspension draught fan |
| CN108566022A (en) * | 2018-03-06 | 2018-09-21 | 中科盛创（青岛）电气股份有限公司 | A kind of cooling system and method for large-size machine bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182242A (en) * | 1994-12-27 | 1996-07-12 | Kosoku Denki Kk | Dustproof structure of bearing for motor |
| JP2003172458A (en) * | 2001-12-10 | 2003-06-20 | Toshiba Corp | Bearing device of main motor for vehicle |
| CN1503433A (en) * | 2002-11-25 | 2004-06-09 | ��ʽ���綫֥ | All closed external fan cooling type motor |
| JP2012050172A (en) * | 2010-08-24 | 2012-03-08 | Toshiba Corp | Fully closed type main motor |
| CN102635572A (en) * | 2012-04-27 | 2012-08-15 | 浙江理工大学 | Blade perforated small axial fan |
| CN202840829U (en) * | 2012-09-05 | 2013-03-27 | 江苏常牵庞巴迪牵引***有限公司 | Cooling device arranged at air outlet of motor |
-
2012
- 2012-09-05 CN CN2012103240135A patent/CN102832744A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182242A (en) * | 1994-12-27 | 1996-07-12 | Kosoku Denki Kk | Dustproof structure of bearing for motor |
| JP2003172458A (en) * | 2001-12-10 | 2003-06-20 | Toshiba Corp | Bearing device of main motor for vehicle |
| CN1503433A (en) * | 2002-11-25 | 2004-06-09 | ��ʽ���綫֥ | All closed external fan cooling type motor |
| JP2012050172A (en) * | 2010-08-24 | 2012-03-08 | Toshiba Corp | Fully closed type main motor |
| CN102635572A (en) * | 2012-04-27 | 2012-08-15 | 浙江理工大学 | Blade perforated small axial fan |
| CN202840829U (en) * | 2012-09-05 | 2013-03-27 | 江苏常牵庞巴迪牵引***有限公司 | Cooling device arranged at air outlet of motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138461A (en) * | 2013-03-13 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Generator strengthened bearing housing seal structure used for dumper |
| CN106382261A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Air cooling structure of magnetic suspension draught fan |
| CN108566022A (en) * | 2018-03-06 | 2018-09-21 | 中科盛创（青岛）电气股份有限公司 | A kind of cooling system and method for large-size machine bearing |
| CN108566022B (en) * | 2018-03-06 | 2024-03-08 | 佳木斯电机股份有限公司 | Cooling system and method for large motor bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5358667B2 (en) | Permanent magnet generator | |
| US8536744B2 (en) | Traction motor | |
| WO2021114606A1 (en) | Air- and water-cooled high-power permanent magnet traction motor having a hanging structure | |
| CN109245431A (en) | A kind of fuel battery air compressor high-speed motor cooling body | |
| JP2007306741A (en) | Motor with integrated controller | |
| CN105191077A (en) | Electric machine having a bearing shield | |
| CN109075652B (en) | System and method for air cooling electric machine components | |
| EP2536006A1 (en) | Vertical shaft disc-type outer rotor electric machine and cooling structure thereof | |
| CN105811660A (en) | Rotating device | |
| CN104505970A (en) | Three-phase asynchronous motor with three-fan full-circulation cooling wind path system | |
| CN201774387U (en) | Low-voltage and high-power cooling dome of electric motor | |
| CN204334189U (en) | There is the threephase asynchronous of three fan complete alternation cooling air duct system | |
| CN103997162A (en) | Air-air cooled high-voltage high-efficiency motor | |
| CN105071598A (en) | Inner wind path structure of double-cooling motor | |
| CN102832744A (en) | Cooling device arranged at motor air outtake end | |
| CN201341051Y (en) | Radiator for air-cooled generator | |
| CN202840829U (en) | Cooling device arranged at air outlet of motor | |
| CN210889094U (en) | Cooling device of oil-free piston machine | |
| JP2008118769A (en) | Full closed vertical rotary machine | |
| CN211630021U (en) | Motor front axle cooling device | |
| CN105990944A (en) | Wind path structure of air-cooling steam turbine generator | |
| CN204361826U (en) | A kind of air-cooled steam turbine generator wind path structure | |
| CN201584871U (en) | Explosion-proof type three-phase asynchronous motor used for scraper conveyor | |
| JP2015224600A (en) | Electric supercharger | |
| CN204046356U (en) | The motor cooling of direct-connected helical-lobe compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |