CN2540697Y - Explosion-proof electric machine - Google Patents
Explosion-proof electric machine Download PDFInfo
- Publication number
- CN2540697Y CN2540697Y CN02220525U CN02220525U CN2540697Y CN 2540697 Y CN2540697 Y CN 2540697Y CN 02220525 U CN02220525 U CN 02220525U CN 02220525 U CN02220525 U CN 02220525U CN 2540697 Y CN2540697 Y CN 2540697Y
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- China
- Prior art keywords
- bearing
- engine base
- support
- rotating shaft
- separation motor
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- Expired - Fee Related
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Abstract
The utility model discloses an explosion isolation motor which comprises an engine base, wherein the front end and the rear end of the engine base are provided with end caps of which centers are provided with shaft holes, and both ends of a rotation shaft are installed in the shaft holes by aid of a bearing, an inner cap of the bearing and an outer cap of the bearing. A spindle is arranged on the rotation shaft, and a cast aluminum rotor is arranged on the spindle. The inner side of the engine base opposite to the cast aluminum rotor is provided with a stator iron core in which a stator coil is arranged. The utility model is characterized in that a heater is installed on the inner sides of the both ends of the engine base, and the heater is of a circular ring shape and is circumferentially set along the inner wall of the engine base. An oil filling hole is arranged on an outer cap of the shaft bearing and is communicated with a bearing chamber of the bearing, and an oil bowl is arranged in the bearing chamber. A bearing temperature sensor and a winding temperature sensor are respectively arranged in grooves of an inner cap of the bearing and the stator iron core. The explosion isolation motor is convenient in adding lubricating grease and is capable of avoiding accidents of motor burning-off and the like, and the utility model has long service life and is applicable to petroleum, chemical industry, coal or natural gas mine and the like situations with combustible and explosive gases.
Description
Technical field
The utility model relates to a kind of motor.Specifically, be the high voltage flameproof threephase asynchronous.Be applicable to that oil, chemical industry, colliery or natural gas ore deposit etc. have occasion inflammable, explosion hazard gases.
Background technology
At present, have occasion inflammable, explosion hazard gases in oil, chemical industry, colliery or natural gas ore deposit etc., because of motor sparking causing burning or explosion accident generation, used motor all has the flame proof function for anti-.But, no heater in this explosion separation motor, after it is out of service, the cooling of stator winding, can make its surface humidity occur is condensation, thereby the insulation resistance of winding is reduced, and shortens the useful life of motor.When serious, insulation breakdown, burn-down of electric motor accident can appear.On the other hand and since this explosion separation motor only the bearing end cover cylindrical be provided with oil filler point, lubricating grease can only be by grease gun injection bearing chamber in this oil filler point, needs manyly with instrument, it is very inconvenient to operate.Again on the one hand,, run into bearing heating or motor overload situation, can't in time obtain the temperature variations of bearing or winding, tend to make glitch to worsen into the major break down that complete machine burns owing to do not have temperature sensor on the bearing of this motor and the stator winding.
Owing to have certain clearance between the bearing end cover of this motor and rotating shaft, dust easily enters bearing chamber by this gap again, and reduced the useful life of bearing.
Summary of the invention
The purpose of this utility model is to provide a kind of explosion separation motor.This explosion separation motor, generation, the long service life that be convenient to add lubricating grease, can avoid accidents such as burn-down of electric motor.
For achieving the above object, the utility model is taked following technical solution:
Explosion separation motor of the present utility model comprises support, and there is end cap the front and back end of support, and there is axis hole at the center of end cap, and the rotating shaft two ends are installed in the axis hole by means of bearing, internal bearing cover and bearing end cover.Said rotating shaft is equipped with cast-aluminum rotor for weldering muscle axle on it.There is stator core the support inboard corresponding with this cast-aluminum rotor, and stator coil is arranged in the stator core.Be characterized in support two ends installed inside having heaters, this heater is an annular, and it is circumferential arrangement along inboard wall of base.
Oil filler point is arranged on the bearing end cover, and oil filler point communicates with the bearing chamber of bearing, is furnished with lubricating cup in it.
Be respectively arranged with bearing temperature transducer and winding temperature transducer in the groove of internal bearing cover and stator core.
Be with v-ring in the rotating shaft of bearing end cover inner circle.
The end hoop at said stator coil two ends is soft end hoop.
Adopt such scheme, have the following advantages:
1. because the support two ends installed inside having heaters of explosion separation motor of the present utility model, after motor was out of service, heater was started working, and made the temperature in the support always be higher than ambient temperature, stator winding condensation can not occur, and winding insulation resistance can not reduce.When restarting, insulation breakdown, long service life can not appear.
2. because explosion separation motor bearing end cover of the present utility model is provided with oil filler point, this oil filler point communicates with the bearing chamber of bearing, is furnished with lubricating cup in it.Only need the lid of rotation lubricating cup upper end, just the lubricating grease in the lubricating cup can be clamp-oned in the bearing chamber.Do not need specific purpose tools such as grease gun, it is more convenient to operate.
3. because explosion separation motor of the present utility model is respectively arranged with bearing temperature transducer and winding temperature transducer in the groove of its internal bearing cover and stator core, the temperature variations of bearing and winding can be obtained at any time, the generation of major break downs such as burn-down of electric motor can be avoided worsening into because of glitch.
4. owing to be with v-ring in the rotating shaft of bearing end cover inner circle, can prevent effectively that dust from entering bearing chamber, thereby prolong the useful life of bearing.
5. because the end hoop at stator coil two ends is soft end hoop, can avoid taking place because of the long-time running of motor makes the loosening situation in stator coil two ends.
Description of drawings
Fig. 1 is an explosion separation motor half section schematic diagram of the present utility model;
Fig. 2 is the A enlarged drawing of Fig. 1.
Embodiment
As shown in Figure 1, explosion separation motor of the present utility model comprises support 15.This support is a cylindrical structure, and each fixes an end cap 6 its two ends.Be processed with axis hole on the end cap 6, rotating shaft 14 two ends are installed in the axis hole on the two end cap 6 by means of bearing 4, internal bearing cover 5 and bearing end cover 2.Said rotating shaft 14 is set with cast-aluminum rotor 13 for weldering muscle axle on it.Rotating shaft 14 rear ends are equipped with fan 16 and fan housing 17 thereof.Support 15 installed inside have stator core 11, and stator coil 10 is installed in the stator core 11.Inboard, support 15 two ends all is equipped with heater 8, and this heater is a tubular structure, and heating wire is installed on wherein, and with quartz sand heating wire and tube wall is separated.Said heater 8 is an annular, and it is circumferential arrangement along support 15 inboards.
For ease of in bearing 4, adding lubricating grease, in the oil filler point of bearing end cover 2, is furnished with lubricating cup 7.When adding lubricating grease, only need screw the lid of lubricating cup 7 upper ends, just the lubricating grease in the lubricating cup 7 can be clamp-oned in the bearing chamber.
For in time obtaining the temperature variations of bearing 4 and winding, in case, in the groove of internal bearing cover 5 and stator core 11, be respectively arranged with bearing temperature transducer 3 and winding temperature transducer 12 because of general glitch worsens into the major break down generation that complete machine burns.
As shown in Figure 2, enter bearing chamber for preventing dust, with bearing end cover 2 in the circle corresponding rotating shaft 14 on, be with v-ring 1.
For avoiding stator coil 10 two ends loosening phenomenon to occur, the end hoop 9 at stator coil 10 two ends adopts soft end cuff structure, promptly carries out colligation with the dacron glass yarn band.Make technology also become simpler.
Claims (5)
1. an explosion separation motor comprises support (15), and there is end cap (6) front and back end of support (15), and there is axis hole at the center of end cap (6); Rotating shaft (14) is arranged in the support (15), and these rotating shaft two ends are installed in this axis hole by means of bearing (4), internal bearing cover (5) and bearing end cover (2); Said rotating shaft (14) is equipped with cast-aluminum rotor (13) for weldering muscle axle on it; There is stator core (11) support corresponding with this cast-aluminum rotor (15) inboard, and stator coil (10) is arranged in the stator core (11); It is characterized in that support (15) two ends installed inside having heaters (8), this heater is an annular, and it is circumferential arrangement along inboard wall of base.
2. explosion separation motor according to claim 1 is characterized in that on the bearing end cover (2) oil filler point being arranged, and this oil filler point communicates with the bearing chamber of bearing (4), is furnished with lubricating cup (7) in it.
3. explosion separation motor according to claim 1 and 2 is characterized in that being respectively arranged with bearing temperature transducer (3) and winding temperature transducer (12) in the groove of internal bearing cover (5) and stator core (11).
4. explosion separation motor according to claim 3 is characterized in that being with v-ring (1) in the rotating shaft (14) of bearing end cover (2) inner circle.
5. explosion separation motor according to claim 3, the end hoop (9) that it is characterized in that stator coil (10) two ends is soft end hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220525U CN2540697Y (en) | 2002-05-10 | 2002-05-10 | Explosion-proof electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220525U CN2540697Y (en) | 2002-05-10 | 2002-05-10 | Explosion-proof electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540697Y true CN2540697Y (en) | 2003-03-19 |
Family
ID=33698801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02220525U Expired - Fee Related CN2540697Y (en) | 2002-05-10 | 2002-05-10 | Explosion-proof electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540697Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001399A (en) * | 2012-12-13 | 2013-03-27 | 中国矿业大学 | Alternating current motor capable of achieving self-testing of rotor temperatures |
| CN109038971A (en) * | 2018-09-06 | 2018-12-18 | 上海旗升电气股份有限公司 | It is a kind of to be able to achieve the online motor from maintenance |
| CN111064323A (en) * | 2018-10-17 | 2020-04-24 | 东芝三菱电机产业系统株式会社 | Rotating electric machine system, space heater system, and method for controlling space heater |
| CN112653282A (en) * | 2021-01-05 | 2021-04-13 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
-
2002
- 2002-05-10 CN CN02220525U patent/CN2540697Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001399A (en) * | 2012-12-13 | 2013-03-27 | 中国矿业大学 | Alternating current motor capable of achieving self-testing of rotor temperatures |
| CN109038971A (en) * | 2018-09-06 | 2018-12-18 | 上海旗升电气股份有限公司 | It is a kind of to be able to achieve the online motor from maintenance |
| CN109038971B (en) * | 2018-09-06 | 2023-12-22 | 浙江中控慧机科技有限公司 | Motor capable of realizing on-line self-maintenance |
| CN111064323A (en) * | 2018-10-17 | 2020-04-24 | 东芝三菱电机产业系统株式会社 | Rotating electric machine system, space heater system, and method for controlling space heater |
| CN112653282A (en) * | 2021-01-05 | 2021-04-13 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
| CN112653282B (en) * | 2021-01-05 | 2021-07-27 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |