CN201966722U - Mining explosion-proof wet type submersible motor - Google Patents
Mining explosion-proof wet type submersible motor Download PDFInfo
- Publication number
- CN201966722U CN201966722U CN2011200351137U CN201120035113U CN201966722U CN 201966722 U CN201966722 U CN 201966722U CN 2011200351137 U CN2011200351137 U CN 2011200351137U CN 201120035113 U CN201120035113 U CN 201120035113U CN 201966722 U CN201966722 U CN 201966722U
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- motor
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- guide bearing
- flameproof joint
- proof
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Abstract
The utility model relates to a mining explosion-proof wet type submersible motor. The improvements are that: the upper end of the motor is provided with a cylindrical junction box in which a power cable binding post and a control cable binding post are arranged; first to sixth explosion-proof binding faces are arranged between an inner passage and an outer passage of the motor; and the lower end of the motor is provided with a cooler mechanism in which a sliding explosion-proof sleeve and a guide sleeve are arranged. The junction box realizes that an external cable is connected with a lead wire in a stator in the junction box through the binding posts, the stator is not required to be opened and only the junction box mechanism is required to be opened during replacement of the external cable; the operation space is large; and the connection is convenient and quick. Due to the arrangement of a plurality of explosion-proof binding faces, coal mining accidents caused by internal reasons of the motor are substantially prevented. By axially sliding the sliding explosion-proof sleeve in the guide sleeve, pressure balance inside and outside the motor is automatically adjusted.
Description
Technical field
The utility model belongs to the submersible electric motor technical field, is specifically related to be applicable to the submersible electric motor of the environment that has flammable explosive gas under the mine.
Background technology
Along with the development of mine cause, the wet diving motor is applied in the production draining in mine more and more in recent ten years.Inside needs water-filling during the wet diving machine operation, because the complexity of its structure, its inside can not be full of water fully when motor was worked under water, always more or less has a part of gas.In inflammable and explosive environment (as mine), when decline of water table is following to the motor peak, motor internal gas is very easily blasted (being caused by reasons such as motor internal electric sparks), ignites the imflammable gas in the motor external environment condition, thereby causes mine safety accidents.In addition, common wet diving motor submergence depth is when 100 meters left and right sides, the pressure reduction of the inside and outside portion of motor has reached 1MPa, and increase along with submergence depth, pressure reduction can be increasing, very easily cause the damage of motor internal parts, greatly reduce motor useful life, limited the range of application of common wet type electric motor.
Summary of the invention
The utility model technical issues that need to address just are existing common wet diving motor is improved, a kind of flame-proof type wet diving motor is provided, can fundamentally stop the generation of the explosion of coal mines accident that causes owing to the motor internal reason, pressure balance that again can the inside and outside portion of self-regulation motor prolongs motor useful life.
Technical scheme is as follows:
Flame-proof mine wet diving motor comprises stator, rotor, top guide bearing, lower guide bearing, water-fast winding lead-out wire and cooler mechanism; Described cooler mechanism is positioned at motor bottom, and comprises cooling housing and bottom end cover, and described bottom end cover inboard is provided with fairlead.Described stator upper end is provided with columned terminal box, is provided with mechanical sealing base, power cable binding post and control cable binding post in the terminal box, and described water-fast winding lead-out wire is positioned at the stator upper end.
Be first flameproof joint between described terminal box lower surface and the top guide bearing upper surface.
Be second flameproof joint between between described top guide bearing lower surface and the stator upper surface.
Be the 3rd flameproof joint between described stator lower surface and the lower guide bearing upper surface.
Be the 4th flameproof joint between described lower guide bearing lower surface and the cooler upper surface.
Establish lead in the described bottom end cover, be arranged with regulating spring on the lead, be arranged with the slip esplosion isolating cover on the regulating spring, be arranged with fairlead on the bottom end cover in the slip esplosion isolating cover outside.
Between described slip esplosion isolating cover bottom outer wall and the fairlead inwall is the 5th flameproof joint.
Be the 6th flameproof joint between described mechanical sealing base lateral wall and the terminal box madial wall.
Useful technique effect of the present utility model embodies in the following areas:
1. the motor output shaft end has increased a terminal box mechanism.Common wet diving motor external electric cable is directly to link to each other with the lead wire of stator interior, when external cable takes place by damaged need the replacing, stator must be opened, and this mode of operation is very easily damaged the water proof winding wires of stator interior; Being connected of external cable and stator interior lead wire is to carry out in the small space of stator end in addition, operates very inconvenient.The utility model has increased a terminal box mechanism at the motor output shaft end, the external electric cable is connected in-house the finishing by binding post of terminal box with the lead wire of stator interior, change the external electric cable and need not to open stator, only need open terminal box mechanism, the operating space is big, and line is convenient and swift;
2. be provided with the flameproof joint of certain-length between inside and outside passage of the utility model.Flameproof joint is meant the corresponding surface engagement of the different parts of explosion separation motor together, when motor internal is blasted, the flame or the explosive product that generate can pass to the motor outside from motor internal thus, in transmittance process from inside to outside, flame or explosive product constantly with the motor component generation heat exchange that constitutes explosion suppresion surface, but temperature has dropped to below the burning-point of outside fuel gas when arriving the outside, and outside fuel gas can not ignite.When flame or explosive product pass through these flameproof joints, with the motor component generation heat exchange that constitutes explosion suppresion surface, temperature can drop to below the burning-point of outside flammable explosive gas gradually, has fundamentally stopped the generation of the coal mining accident that causes owing to the motor internal reason;
3. be provided with slip esplosion isolating cover and fairlead in the utility model cooler mechanism, the slip esplosion isolating cover can slide in fairlead vertically.Because motor internal has a certain amount of gas, when the motor subduction under water the time, the inside and outside portion of motor will produce pressure differential.Common wet diving motor is when submergence depth during 100 meters left and right sides, and the pressure reduction of the inside and outside portion of motor has reached 1MPa, and along with the increase of submergence depth, the pressure reduction of inside and outside portion can be increasing.Common wet type electric motor cooler inside is provided with the adjusting capsule, regulate the pressure reduction of the inside and outside portion of motor with this, but regulating capsule under high pressure very easily damages, just form pass-through state in case damage inside and outside of motor, dirt, impurity in the outside water environment will enter motor internal, influence motor useful life greatly.The utility model has been cancelled the adjusting capsule, is provided with fairlead and slip esplosion isolating cover in cooler inside.By vertically the slip in fairlead of slip esplosion isolating cover, regulate the pressure differential of the inside and outside portion of motor.When motor external pressure during greater than internal pressure, the slip esplosion isolating cover will slide to motor internal along fairlead, and this moment, the gas of motor internal was compressed, and motor internal pressure will increase gradually, until identical, thereby keep the pressure balance of the inside and outside portion of motor with the motor external pressure.Be provided with lead in the cooler of electric motor bottom end cover, be with regulating spring on the lead, can cushion endwisely slipping of slip esplosion isolating cover.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the cooler mechanism enlarged diagram among Fig. 1.
Fig. 3 is the terminal box mechanism enlarged diagram among Fig. 1.
In last figure: power cable 1, terminal box 2, top guide bearing 3, first flameproof joint 4, second flameproof joint 5, control cable binding post 6, stator 7, rotor 8, lower guide bearing 9, the 3rd flameproof joint 10, the 4th flameproof joint 11, cooler mechanism 12, slip esplosion isolating cover 13, fairlead 14, the 5th flameproof joint 15, water-fast winding lead-out wire 16, power cable binding post 17, control cable 18, the 6th flameproof joint 19, mechanical sealing base 20, regulating spring 21, bottom end cover 22, flame proof wet type electric motor cooler casing 23.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, flame-proof mine wet diving motor comprises: power cable 1, top guide bearing 3, stator 7, rotor 8, lower guide bearing 9, cooler mechanism 12, water-fast winding lead-out wire 16 and control cable 18.Cooler mechanism 12 is positioned at motor bottom, and comprise cooler casing 23 and bottom end cover 22, establish lead in the bottom end cover 22, be set with regulating spring 21 on the lead, be arranged with slip esplosion isolating cover 13 on the regulating spring 21, slip esplosion isolating cover 13 can slide in fairlead 14.Top guide bearing 3 upper ends are equipped with columned terminal box 2, see Fig. 3, are provided with mechanical sealing base 20, power cable binding post 17 and control cable binding post 6 in the terminal box 2, and water-fast winding lead-out wire 16 is positioned at stator 7 upper ends.The lead wire of external impetus cable 1 and control cable 18 and stator 7 inside is finished with control cable binding post 6 by power cable binding post 17 in terminal box 2 inside and is connected, change the external electric cable and need not to open stator 7, only need open terminal box 2, the operating space is big, and line is convenient and swift.
Be first flameproof joint 4 between terminal box 2 lower surfaces and top guide bearing 3 upper surfaces; Be second flameproof joint 5 between top guide bearing 3 lower surfaces and stator 7 upper surfaces; Be the 3rd flameproof joint 10 between stator 7 lower surfaces and lower guide bearing 9 upper surfaces; Be the 4th flameproof joint 11 between lower guide bearing 9 lower surfaces and cooler casing 23 upper surfaces; Be the 5th flameproof joint 15 between slip esplosion isolating cover 13 bottom outer walls and fairlead 14 inwalls; Be the 6th flameproof joint 19 between mechanical sealing base 20 lateral walls and terminal box 2 madial walls.When decline of water table in the mine is following to the motor peak, motor is exposed in the flammable explosive gas environment, the electric spark that this moment, the motor operation produced is ignited motor internal gas, explosive flame or product during by these flameproof joints temperature drop to gradually below the burning-point of outside flammable explosive gas, avoid the generation of coal mining accident.
Referring to Fig. 2, establish lead in the bottom end cover 22 of cooler mechanism 12, be set with regulating spring 21 on the lead, be set with slip esplosion isolating cover 13 on the regulating spring 21, on the bottom end cover in slip esplosion isolating cover 13 outsides fairlead 14 is housed.Slip esplosion isolating cover 13 can slide in fairlead 14 vertically.When the wet diving motor was dived beneath the water work, because there is a certain amount of gas in motor internal, inside and outside of motor produced pressure differential.Increase along with submergence depth, when external pressure during greater than internal pressure, slip esplosion isolating cover 13 slides to motor internal along fairlead 14, and the gas of motor internal is compressed, it is identical with the motor external pressure that motor internal pressure increases to gradually, thereby keep inside and outside pressure balance of motor.Bottom end cover 22 in the cooler mechanism 12 is provided with lead, is set with regulating spring 21 on the lead, can cushion endwisely slipping of slip esplosion isolating cover 13.
Claims (1)
1. flame-proof mine wet diving motor comprises stator, rotor, top guide bearing, lower guide bearing, water-fast winding lead-out wire and cooler mechanism; Described cooler mechanism is positioned at motor bottom, and comprises cooling housing and bottom end cover, and described bottom end cover inboard is provided with fairlead; It is characterized in that: described stator upper end is provided with columned terminal box, is provided with mechanical sealing base, power cable binding post and control cable binding post in the terminal box, and described water-fast winding lead-out wire is positioned at the stator upper end;
Be first flameproof joint between described terminal box lower surface and the top guide bearing upper surface;
Be second flameproof joint between between described top guide bearing lower surface and the stator upper surface;
Be the 3rd flameproof joint between described stator lower surface and the lower guide bearing upper surface;
Be the 4th flameproof joint between described lower guide bearing lower surface and the cooler upper surface;
Establish lead in the described bottom end cover, be arranged with regulating spring on the lead, be arranged with the slip esplosion isolating cover on the regulating spring, be arranged with fairlead on the bottom end cover in the slip esplosion isolating cover outside;
Between described slip esplosion isolating cover bottom outer wall and the fairlead inwall is the 5th flameproof joint;
Be the 6th flameproof joint between described mechanical sealing base lateral wall and the terminal box madial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200351137U CN201966722U (en) | 2011-02-10 | 2011-02-10 | Mining explosion-proof wet type submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200351137U CN201966722U (en) | 2011-02-10 | 2011-02-10 | Mining explosion-proof wet type submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966722U true CN201966722U (en) | 2011-09-07 |
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ID=44529274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200351137U Expired - Fee Related CN201966722U (en) | 2011-02-10 | 2011-02-10 | Mining explosion-proof wet type submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427531A (en) * | 2013-09-02 | 2013-12-04 | 无锡锡山安达防爆电气设备有限公司 | Motor for explosion-proof high-pressure submersible pump |
| CN103915935A (en) * | 2014-03-25 | 2014-07-09 | 山东星源矿山设备集团有限公司 | Mine flame-proof type water filling type submersible motor |
-
2011
- 2011-02-10 CN CN2011200351137U patent/CN201966722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427531A (en) * | 2013-09-02 | 2013-12-04 | 无锡锡山安达防爆电气设备有限公司 | Motor for explosion-proof high-pressure submersible pump |
| CN103915935A (en) * | 2014-03-25 | 2014-07-09 | 山东星源矿山设备集团有限公司 | Mine flame-proof type water filling type submersible motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI HENGDA JIANGHAI PUMP CO., LTD. Free format text: FORMER NAME: HEFEI SANYI JIANGHAI PI\UMP INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231131 Patentee after: Hefei Hengda Jianghai Pump Industry Co., Ltd. Address before: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231131 Jin Road No. 2 Patentee before: Hefei Sanyi Jianghai Pump Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20160210 |