CN202840829U - Cooling device arranged at air outlet of motor - Google Patents
Cooling device arranged at air outlet of motor Download PDFInfo
- Publication number
- CN202840829U CN202840829U CN 201220448094 CN201220448094U CN202840829U CN 202840829 U CN202840829 U CN 202840829U CN 201220448094 CN201220448094 CN 201220448094 CN 201220448094 U CN201220448094 U CN 201220448094U CN 202840829 U CN202840829 U CN 202840829U
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- China
- Prior art keywords
- end cap
- motor
- cooling fan
- rotating shaft
- cooling
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a cooling device arranged at the air outlet of a motor, comprising an end cap which is connected with the air outlet of a casing and is provided with an end cap through hole, a rotating shaft and a rotor. The side terminal of the rotor is provided with a rotor pressure plate; a cooling fan is arranged in the cavity between the rotor pressure plate and the end cap; the cooling fan is fixedly connected with the rotating shaft; the cooling fan is provided with a fan labyrinth ring integrated with the cooling fan; and the labyrinth sealing structure is characterized in that the fan labyrinth ring is connected with the end cap and is movably matched with the rotating shaft. According to the cooling device arranged at the air outlet of the motor, not only is the cooling effect on the bearing of the motor good, but also the axial installation is compact and reasonable.
Description
Technical field
The utility model relates to a kind of cooling devcie of motor, is 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 utility model 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 because frictional damping produces a large amount of heats, can greatly affect the life-span of bearing and bearing grease when running up.The type of cooling that temperature rise is carried out for motor bearings at present mainly is to cool off by the heat radiation of self, this type of cooling is not high for some rotating speeds, the little motor of load still can be satisfied the demand, but be inadequate for high-power, high-revolving traction electric machine, it is to carry the cooling air of coming by cooling blower, air channel, air port by connected forced air cooling motor enters, and after wind to be cooled enters motor, and by the air outlet of motor heat is taken away; Usually external air source is connected with the air inlet of motor, and cooling air is blown 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 large 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 so that local area (for example bearing portion) blows and do not fall cooling air and overheated.If simple increasing cooling air quantity, not only effect is bad also uneconomical.Therefore, (traction electric machine is subject to the width restriction of rail in 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 again near the bearing of forced air cooling motor air outlet and the not enough problem of stator coil heat radiation.
For this reason, a kind of good cooling results is proposed, the motor bearing cooling device that is positioned at air opening end of compact dimensions, utilize this device to improve near the bearing of motor air outlet and the radiating effect of stator coil, greatly reduce the bearing operating temperature, and can play the restrict rotor silicon steel laminations in axial displacement, just become expectation in the industry.
Summary of the invention
The purpose of this utility model is to provide a kind of not only good cooling results, and substantially do not change the structure of existing described motor, in less axial installing space scope, be located at the cooling device of motor air opening end, to solve the existing deficiency of prior art, this cooling device can effectively improve near the bearing of motor air outlet and the radiating effect of stator coil, greatly reduces the operating temperature of bearing.
In order to achieve the above object, the technical solution adopted in the utility model is, a kind of cooling device that is located at the motor air opening end, comprise the end cap with end cap through hole, rotating shaft and the rotor that are connected with the casing air opening end, side at rotor is provided with rotor press plate, and its: be provided with cooling fan in the cavity between described rotor press plate and the end cap, described cooling fan and rotating shaft static connection, described cooling fan is provided with and its fan labyrinth ring of one each other, described fan labyrinth ring be connected with end cap and consist of labyrinth seal structure with rotating shaft end cap labyrinth ring movingly.
In technique scheme, the flabellum of described 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 described end cap, and the air outlet on the air-out mouth mask and end cap through hole connect.
In technique scheme, described cooling fan is the cast aluminium cooling fan; And the static connection of described cast aluminium cooling fan and rotating shaft is the steel bushing that is connected by with cast aluminium cooling fan casting, is the secondary static connection of keyway with rotating shaft, or steel bushing is enclosed within static connection in the rotating shaft through heating after heat.Described casting connects, and is take steel bushing as inserts, by the cooling fan die casting both is connected.
The course of work of the present utility model and beneficial effect thereof are: because after adopting said apparatus, cooling fan is along with machine shaft rotates together, when cooling fan turns round, to be drawn in the motor by the cooling air that cooling air inlet enters 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 utility model purpose.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model, 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 utility model is described in further detail, but be 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 press plate 7, be provided with cooling fan 6 in the cavity between described rotor press plate 7 and the end cap 2, described cooling fan 6 and rotating shaft 4 static connections, described cooling fan 6 is provided with and its fan labyrinth ring 6-1 of one each other, and described fan labyrinth ring 6-1 is with that be connected with end cap 2 and consist of labyrinth seal structures with rotating shaft 4 end cap labyrinth ring 8 movingly.Cooling fan 6 of the present utility model axially can play the phenomenon that axial displacement appears in restrict rotor 9 in the running, namely can live rotor 9 at axial restraint; And the fan labyrinth ring 6-1 of cooling fan 6 has carried out labyrinth seal to bearing 4 after being equipped with mutually with end cap labyrinth ring 8, 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 Assembly of the parts, saved axial installing space.
As shown in Figure 1, in order to form the back that the multiply air-flow enters cooling fan so that enter the cooling air of motor internal, form cyclone vortex, cooling effect with further raising motor air opening end, the flabellum 6-2 of described 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, enter motor internal in order to prevent larger foreign matter, affect the reliability of its use, air-out mouth mask 10 also is equipped with in the outside of described 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 utility model is actively recommended is the cast aluminium cooling fan, and the static connection of described cast aluminium cooling fan 6 and rotating shaft 4, is to be the secondary static connection of keyway by 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 owing to the aluminum cooling fan, direct and rotating shaft is shaft hole matching, and 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 large, also can occur the phenomenon that gets loose with rotating shaft in the time of seriously.Facts have proved, adopt the cast aluminium fan with steel bushing of the present utility model, more much longer than the useful life of cast aluminium fan.
The utility model lab scale effect shows that the cooling device of this structure is good cooling results not only, and is fit to existing described motor is transformed, and has realized original intention of the present utility model.
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) that is connected with casing (1) air opening end, rotating shaft (4) and rotor (9), side at rotor (9) is provided with rotor press plate (7), it is characterized in that: be provided with cooling fan (6) in the cavity between described rotor press plate (7) and the end cap (2), described cooling fan (6) and rotating shaft (4) static connection, described cooling fan (6) is provided with and its fan labyrinth ring (6-1) of one each other, described fan labyrinth ring (6-1) be connected with end cap (2) and consist of 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, it is characterized in that: the flabellum (6-2) of described 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, it is characterized in that: air-out mouth mask (10) also is equipped with in the outside of described 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, it is characterized in that: described cooling fan (6) is the cast aluminium cooling fan; And the static connection of described cast aluminium cooling fan (6) and rotating shaft (4), it is the steel bushing (6-3) that is connected by 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 static connection in the rotating shaft (4) through the heating after heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448094 CN202840829U (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at air outlet of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448094 CN202840829U (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at air outlet of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840829U true CN202840829U (en) | 2013-03-27 |
Family
ID=47952433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220448094 Expired - Fee Related CN202840829U (en) | 2012-09-05 | 2012-09-05 | Cooling device arranged at air outlet of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832744A (en) * | 2012-09-05 | 2012-12-19 | 江苏常牵庞巴迪牵引系统有限公司 | Cooling device arranged at motor air outtake end |
-
2012
- 2012-09-05 CN CN 201220448094 patent/CN202840829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832744A (en) * | 2012-09-05 | 2012-12-19 | 江苏常牵庞巴迪牵引系统有限公司 | Cooling device arranged at motor air outtake end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130905 |