CN201315513Y - Dust and explosion prevention three-phase asynchronous motor - Google Patents
Dust and explosion prevention three-phase asynchronous motor Download PDFInfo
- Publication number
- CN201315513Y CN201315513Y CNU2008202110701U CN200820211070U CN201315513Y CN 201315513 Y CN201315513 Y CN 201315513Y CN U2008202110701 U CNU2008202110701 U CN U2008202110701U CN 200820211070 U CN200820211070 U CN 200820211070U CN 201315513 Y CN201315513 Y CN 201315513Y
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- China
- Prior art keywords
- support
- dust
- asynchronous motor
- phase asynchronous
- explosion prevention
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- Expired - Fee Related
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Abstract
The utility model relates to a dust and explosion prevention three-phase asynchronous motor which comprises a stator, a rotor, a machine base, an end cover, an assembly bearing, an inner fan, a wind cover and an outlet box. Heat radiating ribs are arranged on the surface of the machine base; two inner ends of the machine base are mutually communicated through an air duct on the lateral surface; and except an outlet, the machine base is totally closed. The protection grade of the three-phase asynchronous motor reaches IP 65; and the dust explosion prevention performance is reliable and the structure is simple, so that the three-phase asynchronous motor satisfies the requirements of safety regulations for dust explosion prevention, and is suitable for dust atmosphere.
Description
Technical field
The utility model relates to the flame-proof motor that uses under a kind of dust atmosphere, especially relates to the anti-dust explosion protection type threephase asynchronous of a kind of high pressure.
Background technology
At present anti-dust explosion protection type motor has only the low-voltage miniature threephase asynchronous, do not have middle and high pressure in, large-scale threephase asynchronous, high-voltage explosion-proof motor degree of protection has only IP44, and the highest IP54 can not use the dust explosion protection place that reaches IP65 in the degree of protection requirement.
The utility model content
The purpose of this utility model is to provide a kind of high-voltage explosion-proof type threephase asynchronous that is suitable for use under the dust atmosphere.
The technical solution of the utility model is: it comprises stator, rotor, support, end cap, running in bearings, internal fan, fan housing, outlet box, the support surface is provided with radiating ribs, two ends are by the air channel intercommunication of side in the support, support except that wire hole, all the other totally-encloseds.
The preferred following structure of air-tight manner: base adopts the sealing of " O " type seal with junction, support plane: the employing seam that is connected of end cap, terminal box and support adds the sealing of " O " type seal; The labyrinth sealing is adopted in the enclosing cover of running in bearings and rotating shaft, stops dust to enter.
Support is outer should set up external fan, with the further cooling effect that improves.Support adopts hot investment casting.
Owing to be provided with the separate inside and outside cooling system of two covers, during the motor rotation, the wind that internal fan is extracted out cools off after-blow to the other end from an end of support through the air channel of support side, through air gap, rotor axial air duct heat is taken away again, blow out by internal fan again and form the circulation in wind, the wind of external fan is blown over from the wind groove of support appearance simultaneously, and the heat slave seating face of base inner is taken away by cooling air.
The utility model support is except that both ends open and have two wire holes, and all the other are airtight entirely, and degree of protection reaches IP65, and anti-dust explosion protection dependable performance satisfies the requirement of safety requlation for dust explosion protection, is suitable for use dust atmosphere under; Simple in structure.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model one embodiment.
Fig. 2 is bearing end cover embodiment illustrated in fig. 1 and rotating shaft sealing structure enlarged diagram.
Fig. 3 is support embodiment illustrated in fig. 1 and end cap seal structure enlarged diagram.
Fig. 4 is support embodiment illustrated in fig. 1 and main electrical scheme box hermetically-sealed construction enlarged diagram.
Fig. 5 is support embodiment illustrated in fig. 1 and thermometric heating wire box hermetically-sealed construction enlarged diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
With reference to Fig. 1, present embodiment comprises running in bearings 1, end cap 2, support 3, terminal box 4, stator 5, rotor 6, fan housing 7, internal fan 8, rotating shaft 9, and support 3 surfaces are provided with radiating ribs, and two ends are by the air channel intercommunication of side in the support 3, support 3 except that wire hole, all the other totally-encloseds.
Fig. 2 represents the enclosing cover 11 of bearing 1 and the hermetically-sealed construction of rotating shaft 9, and the enclosing cover 11 of running in bearings adopts labyrinth 10 sealings with rotating shaft 9.
Fig. 3 represents support 3 and end cap 2 hermetically-sealed constructions, and end cap 2 stop portions are provided with cannelure, are equipped with " O " RunddichtringO 12 in the groove.
Fig. 4 represents the hermetically-sealed construction of base 14 and support 3, main electrical scheme box 4, and base 14 upper and lower planes are provided with seal groove, are equipped with " O " shape sealing ring 13, " O " shape sealing ring 15 in the groove respectively.
Fig. 5 represents the hermetically-sealed construction of support 3 and thermometric heating wire box 17, and there is seal groove on the plane on the thermometric heating wire box 17, is equipped with " O " RunddichtringO 16 in the groove.
Present embodiment adopts the F class F insulation, and the examination of B level is pressed in temperature rise, and the stator winding temperature limit is no more than 80K with electric-resistivity method, is no more than 90K with embedding thermometry meter method; The bearing allowable temperature is no more than 95 ℃; The shell maximum surface temperature is no more than 135 ℃.
Claims (3)
1. an anti-dust explosion protection type threephase asynchronous comprises stator, rotor, support, end cap, running in bearings, internal fan, fan housing, outlet box, and the support surface is provided with radiating ribs, two ends are by the air channel intercommunication of side in the support, it is characterized in that, support except that wire hole, all the other totally-encloseds.
2, anti-dust explosion protection type threephase asynchronous according to claim 1 is characterized in that, base adopts the sealing of " O " type seal with junction, support plane: the employing seam that is connected of end cap, terminal box and support adds the sealing of " O " type seal; The labyrinth sealing is adopted in the enclosing cover of running in bearings and rotating shaft.
3, anti-dust explosion protection type threephase asynchronous according to claim 1 and 2 is characterized in that support also is provided with external fan outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202110701U CN201315513Y (en) | 2008-12-23 | 2008-12-23 | Dust and explosion prevention three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202110701U CN201315513Y (en) | 2008-12-23 | 2008-12-23 | Dust and explosion prevention three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315513Y true CN201315513Y (en) | 2009-09-23 |
Family
ID=41127313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202110701U Expired - Fee Related CN201315513Y (en) | 2008-12-23 | 2008-12-23 | Dust and explosion prevention three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315513Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207392A (en) * | 2015-09-28 | 2015-12-30 | 无锡市南方防爆电机有限公司 | Novel explosion-proof electric motor equipment |
| CN105515315A (en) * | 2014-09-22 | 2016-04-20 | 池州扬帆微电机有限责任公司 | Dual-output-shaft dual-flange motor |
| CN114530970A (en) * | 2022-01-20 | 2022-05-24 | 上海大速科技有限公司 | Novel dust flame-proof motor |
-
2008
- 2008-12-23 CN CNU2008202110701U patent/CN201315513Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515315A (en) * | 2014-09-22 | 2016-04-20 | 池州扬帆微电机有限责任公司 | Dual-output-shaft dual-flange motor |
| CN105207392A (en) * | 2015-09-28 | 2015-12-30 | 无锡市南方防爆电机有限公司 | Novel explosion-proof electric motor equipment |
| CN114530970A (en) * | 2022-01-20 | 2022-05-24 | 上海大速科技有限公司 | Novel dust flame-proof motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |