CN201204504Y - Positive draft balanced type explosion-proof diving dual-function motor - Google Patents
Positive draft balanced type explosion-proof diving dual-function motor Download PDFInfo
- Publication number
- CN201204504Y CN201204504Y CNU2008201169943U CN200820116994U CN201204504Y CN 201204504 Y CN201204504 Y CN 201204504Y CN U2008201169943 U CNU2008201169943 U CN U2008201169943U CN 200820116994 U CN200820116994 U CN 200820116994U CN 201204504 Y CN201204504 Y CN 201204504Y
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Abstract
The utility model discloses a positive draft balanced type flameproof and diving dual function motor, comprising a motor shaft, a front bearing, a front end cover, a motor incoming line, a motor shell, a stator winding, a rotor, a heating detecting device, a back end cover, a back bearing and a bearing cover, the motor shaft penetrates in the motor shell and is supported by the front bearing and the back bearing; the stator winding is fixed in the inner wall of the motor shell; the rotor is fixed in the inner motor shaft; a shaft sealing is arranged between the front bearing and the front end cover; an air inlet and an air outlet are arranged on the motor shell; the air inlet and the air outlet is communicated through the gap in the motor shell; the utility model not only normally works at the environment of mine detonating gas, but also realizes steadily and reliably works in a long period under the diving environment .
Description
Technical field:
The utility model relate to a kind of can be at the explosion-proof submerged difunctional motor of forced draft balanced type of damp or submersible environment reliability service steady in a long-term.
Background technology:
Though existing phase asynchronous flame-proof electric motor can be in explosive gas atmosphere operate as normal, can't work under water.Its explosion-proof mechanism is, damp in the motor cavity is in case blast, the high temperature and high pressure gas of its generation discharges to the outside through flame proof gap on the motor field frame, in the pressure leak process since explosion suppresion surface to the cooling effect of gas, its temperature is reduced to below the explosion gas burning-point, can not light motor extraneous explosion gas, the heat radiation of its stator winding and rotor is that inner the fan on the main shaft rotates and realize.In the time of in being in the immersion environment, flame-proof electric motor is because the flame proof gap easily causes water inlet in the motor cavity, cause motor winding and connecting portion decreasing insulating, turn-to-turn short circuit or punch-through over the ground, make the motor can't operate as normal, so the motor of this type can't drag submersible horizontal multi-stage centrifugal drain pump emergency drainage at mine generation floods and by under the situation of flooding.
Though existing submersible electric motor can be worked under submersible environment, because the cooling heat dissipation of its stator, rotor must be realized by internal water circulation and the mobile method that heat is taken away of outside water, so can't be implemented in operation under the explosive gas atmosphere, and operational efficiency is lower.Horizontal explosion-proof (common) motor be if can be implemented in air, the damp and reliably working steady in a long-term under the submersible environment, will reorganize and outfit technological progress and safe anti-disaster ability produces significant impact to relevant industries.
The utility model content:
The purpose of this utility model provide a kind of both can be under the explosive gas atmosphere of mine operate as normal, again can be at the explosion-proof submerged difunctional motor of forced draft balanced type of submersible environment reliably working steady in a long-term.
To achieve these goals, the utility model comprises: motor shaft, fore bearing, front end housing, the motor inlet wire, electric machine casing, stator winding, rotor, add heat detecting device, rear end cap, rear bearing, bearing cap, motor shaft penetrates into electric machine casing inside and is supported by fore bearing and rear bearing, stator winding is fixed on the electric machine casing inwall, rotor is fixed on the inner motor shaft, it is to be provided with shaft seal at the position of fore bearing and front end housing, be provided with an air inlet and an air outlet on electric machine casing, air inlet and air outlet are interconnected by the electric machine casing internal clearance.
Like this, when work, air inlet is linked into the air intake pipeline, air outlet connects the air-out pipeline, when moving in air, normaling burst property gaseous environment, the fresh dried air constantly replenishes to motor interior from the motor air inlet, prevents that extraneous explosion gas from entering motor interior on the one hand; On the other hand, flow through and discharge motor from air outlet after motor rotor, stator winding surface absorbs heat energy.Because the effect of shaft seal, electric machine casing inside is isolated from the outside, and when moving in explosive gas atmosphere, ventilation can prevent that damp from entering motor interior, flow air is taken away the heat that motor produces, and the temperature that has guaranteed motor within the limits prescribed.
When this utility model is under water, fill dried compressed air or insulating properties liquid to motor interior, this motor enters the internal and external pressure balance state, can drag the draining of submersible horizontal multi-stage centrifugal drain pump; When external water pressure increases, increase compressed air or High-Voltage Insulation fluid pressure, keep the internal and external pressure balance operating state, prevent that outside water from entering motor interior, guarantee the insulating properties of motor winding, utilize the water of electric machine casing outer wall to cool off exchange, take away the heat of motor rotor, stator winding generation, the radiating mode of motor changes to some extent, and the inner heat that produces is absorbed by outside water during the motor operation, has guaranteed the motor relevant technologies condition of environmental work under water.No matter in gaseous environment, still in the water logging state, pressure must keep balance with external pressure all the time in the motor, makes external agency can't enter motor interior.The utility model both can be under the explosive gas atmosphere of mine operate as normal, can be particularly suitable for damp being arranged and having the drainage system of the mine of gushing water danger to install and use at submersible environment reliably working steady in a long-term again.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment:
As shown in Figure 1, utility model comprises: motor shaft 1, fore bearing 3, front end housing 4, motor inlet wire 5, electric machine casing 6, stator winding 7, rotor 8, add heat detecting device 9, rear end cap 11, rear bearing 12, bearing cap 13.Motor shaft 1 penetrates into electric machine casing 6 inside and is supported by fore bearing 3 and rear bearing 12, and stator winding 7 is fixed on the electric machine casing inwall, and rotor 8 is fixed on the inner motor shaft 1.Forward and backward end cap and electric machine casing are made water-proofing treatment, and rear bearing cover 13 faying faces are made water-proofing treatment.Motor does not have terminal box, takes behind the waterproof measure directly inlet wire, takes can guarantee that damp or water can not enter in the motor cavity after the above measure.Be provided with shaft seal 2 at the position of fore bearing and front end housing, be provided with an air inlet 14 in the bottom of electric machine casing, be provided with an air outlet 10 on the top of electric machine casing, air inlet and air outlet are interconnected by electric machine casing 6 internal clearances.
This motor interior is installed wetness sensor, and when flooding well, in case the motor water inlet, wetness sensor electric motor operated system earthward sends alarm signal, and motor shuts down.In the end of mine drainage complex ore, when entering the production phase, cutoff high inflation or hydromechanical system are adjusted to normal pressure with interior pressure, evacuation of liquid is opened the motor exhaust outlet, the fresh dried of making a gift to someone in motor air, enter the positive-pressure explosion-proof operating condition, be converted to the positive-pressure explosion-proof motor.The big I of specification of the present utility model is made series of products according to operating power.
Claims (1)
1, the explosion-proof submerged difunctional motor of a kind of forced draft balanced type, comprise: motor shaft (1), fore bearing (3), front end housing (4), motor inlet wire (5), electric machine casing (6), stator winding (7), rotor (8), add heat detecting device (9), rear end cap (11), rear bearing (12), bearing cap (13), motor shaft (1) penetrates into electric machine casing (6) inside and is supported by fore bearing and rear bearing, stator winding (7) is fixed on the electric machine casing inwall, rotor (8) is fixed on the inner motor shaft (1), it is characterized in that being provided with shaft seal (2) at the position of fore bearing (3) and front end housing (4), be provided with an air inlet (14) and an air outlet (10) on electric machine casing, air inlet and air outlet are interconnected by the electric machine casing internal clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201169943U CN201204504Y (en) | 2008-05-24 | 2008-05-24 | Positive draft balanced type explosion-proof diving dual-function motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201169943U CN201204504Y (en) | 2008-05-24 | 2008-05-24 | Positive draft balanced type explosion-proof diving dual-function motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204504Y true CN201204504Y (en) | 2009-03-04 |
Family
ID=40426819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201169943U Expired - Fee Related CN201204504Y (en) | 2008-05-24 | 2008-05-24 | Positive draft balanced type explosion-proof diving dual-function motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204504Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119413A (en) * | 2015-09-25 | 2015-12-02 | 力博重工科技股份有限公司 | Vertical type permanent-magnet direct-drive motor |
| CN105610267A (en) * | 2016-03-22 | 2016-05-25 | 苏州朗高电机有限公司 | Air sealing device for auto motor |
| CN105958709A (en) * | 2016-06-14 | 2016-09-21 | 溧水县得瑞微型电机厂 | Motor protecting cover |
| CN110601420A (en) * | 2019-09-27 | 2019-12-20 | 哈尔滨理工大学 | Magnetic fluid sealing positive pressure type explosion-proof motor |
| CN111404343A (en) * | 2019-10-09 | 2020-07-10 | 吴岩 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
-
2008
- 2008-05-24 CN CNU2008201169943U patent/CN201204504Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119413A (en) * | 2015-09-25 | 2015-12-02 | 力博重工科技股份有限公司 | Vertical type permanent-magnet direct-drive motor |
| CN105119413B (en) * | 2015-09-25 | 2017-12-22 | 力博重工科技股份有限公司 | Vertical permanent magnet direct driving motor |
| CN105610267A (en) * | 2016-03-22 | 2016-05-25 | 苏州朗高电机有限公司 | Air sealing device for auto motor |
| CN105958709A (en) * | 2016-06-14 | 2016-09-21 | 溧水县得瑞微型电机厂 | Motor protecting cover |
| CN110601420A (en) * | 2019-09-27 | 2019-12-20 | 哈尔滨理工大学 | Magnetic fluid sealing positive pressure type explosion-proof motor |
| CN110601420B (en) * | 2019-09-27 | 2024-04-12 | 哈尔滨理工大学 | Magnetic fluid sealing positive pressure type explosion-proof motor |
| CN111404343A (en) * | 2019-10-09 | 2020-07-10 | 吴岩 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
| CN111404344A (en) * | 2019-10-09 | 2020-07-10 | 吴岩 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
| CN111404343B (en) * | 2019-10-09 | 2022-03-25 | 青岛天一集团红旗电机有限公司 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
| CN111404344B (en) * | 2019-10-09 | 2022-07-08 | 江苏锡安达防爆股份有限公司 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
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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: 20090304 |