CN105356647A - Novel explosion-proof motor - Google Patents
Novel explosion-proof motor Download PDFInfo
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- CN105356647A CN105356647A CN201410415646.6A CN201410415646A CN105356647A CN 105356647 A CN105356647 A CN 105356647A CN 201410415646 A CN201410415646 A CN 201410415646A CN 105356647 A CN105356647 A CN 105356647A
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- explosion
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Abstract
The invention belongs to the technical field of motors, and particularly relates to a novel explosion-proof motor. The novel explosion-proof motor comprises a shell barrel, an upper cover, a lower cover, a condensation cavity, an explosion-proof cavity, a rotating shaft, a rotor, a stator, an annular seal pad, an insulating sleeve, a rotor winding, a stator winding, an electric wire, a wire sheathing pipe, an outlet seat, a rubber seal ring and a wear-resistant layer, wherein the upper cover is fixed at the upper end of the shell barrel; the lower cover is fixed at the lower end of the shell barrel; the condensation cavity and the explosion-proof cavity are sequentially arranged in the shell barrel from outside to inside; the rotating shaft is arranged in the shell barrel; the lower end of the rotating shaft is rotationally connected with the lower cover; the upper end passes through the upper cover and is rotationally connected with the upper cover; the annular seal pad is arranged between the rotating shaft and the upper cover; and the rotor and the stator are sequentially arranged between the rotating shaft and the shell barrel. The novel explosion-proof motor provided by the invention is good in air-tightness, good in cooling effect and high in safety coefficient.
Description
Technical field
The invention belongs to technical field of motors, particularly relate to a kind of explosion-proof electric machine.
Background technology
Along with the fast development of science and technology, the raising of industrial automatization, motor is widely applied to various industrial occasions as a kind of electric power source, blower fan in the inflammable and explosive environment such as petroleum system, Gas Pressurization Station and thermal power plant needs application fire-proof motor to provide power to ventilate, and prevents explosion accident from occurring.The fire-proof motor of prior art comprises stator, rotor, casing, front end housing and rear end cap, casing and front end housing, between casing and rear end cap, form explosion-proof chamber, the front and back ends of rotor is located on front end housing and rear end cap respectively, the fire-proof motor structure of this structure is simple, production cost is lower, but the fire-proof motor of this structure is when reality uses, and there are the following problems:
1, there is spark or explosion time in motor internal, and casing, front end housing and rear end cap may deform, crackle and cause explosion-proof chamber to lose efficacy, and coefficient of safety is lower.
2, the amount of heat produced when motor winding runs is passed on machine shaft, then is cooled machine shaft by extraneous cooling body, and this transmission type of cooling effect is poor.
3, when motor normally works, motor wire exit poor sealing and often enter fuel gas, fuel gas and electric wire friction are emerged electric spark, may occur motor explosion phenomenon, there is potential safety hazard when the combustible gas scale of construction entered is more.
Summary of the invention
Main purpose of the present invention is to solve problems of the prior art, provides the explosion-proof electric machine that a kind of good airproof performance, good cooling results and coefficient of safety are high.
Technical problem solved by the invention realizes by the following technical solutions: a kind of explosion-proof electric machine, comprises thimble, upper cover, lower cover, condensation chamber, explosion-proof chamber, rotating shaft, rotor, stator, Gask-O-Seal, insulating sleeve, rotor windings, stator winding, electric wire, cover spool, wire outlet seat, rubber seal and wearing layer, described thimble upper end is fixed with upper cover, described thimble lower end is fixed with lower cover, described thimble ecto-entad is provided with condensation chamber and explosion-proof chamber successively, described thimble inside is provided with rotating shaft, described rotating shaft lower end is rotationally connected lower cover, upper end is passed upper cover and is rotationally connected with it, Gask-O-Seal is provided with between described rotating shaft and upper cover, rotor and stator is provided with successively between described rotating shaft and thimble, insulating sleeve is provided with between described rotating shaft and rotor, described rotor is provided with the rotor windings of closed-loop path, described stator is provided with stator winding, on the electric wire that described stator winding exports, cover has cover spool, described upper cover left end has the first outlet, the described first outlet left and right sides covers and is fixed with wire outlet seat, described wire outlet seat and first exports opposite position and has the second outlet, described cover spool is successively through the first outlet and the second outlet, rubber seal is provided with between described cover spool and first exports, described second outlet inside wall is provided with wearing layer.
The material of described thimble, upper cover and lower cover is alloy steel material.
Ethylene glycol type cooling fluid is filled with in described condensation chamber.
Polyurethane foam is filled with in described explosion-proof chamber.
Described insulating sleeve is condenser-type terminal.
Beneficial effect of the present invention is:
1, the Gask-O-Seal between rotating shaft of the present invention and upper cover, overlap spool and first export between rubber seal, the inner flashing of the thimble that the fuel gas in external environment can not be entered into or explosion phenomenon, improve sealing property and coefficient of safety; The structural design of the cooling chamber of thimble, compared with the delivery type type of cooling of prior art, directly can cool the heat that thimble internal stator winding produces, greatly improve cooling effectiveness and cooling effect.
2, insulating sleeve material of the present invention is condenser-type terminal, and the mechanical strength of condenser-type terminal is high, setting angle is adjustable, moisture resistance gas is good, and condenser-type terminal by rotor and rotating shaft insulation isolation, can produce the interference signal in magnetic field for shielding stator winding.
3, the material of thimble of the present invention, upper cover and lower cover is alloy steel material, and the support strength of steel alloy is large, resistance to elevated temperatures good, so thimble, upper cover and lower cover all have good explosion-proof performance, greatly improves coefficient of safety.
4, be filled with polyurethane foamed material in explosion-proof chamber of the present invention, the damping of shocks performance of polyurethane foam be good, good springiness, high temperature resistant, so the explosion-proof chamber that polyurethane foam is filled has good flexible explosion-proof performance.
5, ethylene glycol type cooling fluid is filled with in condensation chamber of the present invention, the boiling point of ethylene glycol type cooling fluid is high, antiseptic property good, cooling performance is good, so the heat that the condensation chamber that ethylene glycol type cooling fluid is filled can make stator winding produce effectively is absorbed process, greatly improve cooling effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-thimble, 2-upper cover, 3-lower cover, 4-condensation chamber, 5-explosion-proof chamber, 6-rotating shaft, 7-rotor, 8-stator, 9-Gask-O-Seal, 10-insulating sleeve, 11-rotor windings, 12-stator winding, 13-electric wire, 14-overlaps spool, 15-wire outlet seat, 16-rubber seal, 17-wearing layer, 18-first exports, and 19-second exports.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
Embodiment:
As shown in Figure 1, the present embodiment comprises thimble 1, upper cover 2, lower cover 3, condensation chamber 4, explosion-proof chamber 5, rotating shaft 6, rotor 7, stator 8, Gask-O-Seal 9, insulating sleeve 10, rotor windings 11, stator winding 12, electric wire 13, cover spool 14, wire outlet seat 15, rubber seal 16 and wearing layer 17, thimble 1 upper end is fixed with upper cover 2, and thimble 1 lower end is fixed with lower cover 3, thimble 1, the material of upper cover 2 and lower cover 3 is alloy steel material, thimble 1 ecto-entad is provided with condensation chamber 4 and explosion-proof chamber 5 successively, ethylene glycol type cooling fluid is filled with in condensation chamber 4, polyurethane foam is filled with in explosion-proof chamber 5, thimble 1 inside is provided with rotating shaft 6, rotating shaft 6 lower end is rotationally connected lower cover 3, upper end is passed upper cover 2 and is rotationally connected with it, Gask-O-Seal 9 is provided with between rotating shaft 6 and upper cover 2, rotor 7 and stator 8 is provided with successively between rotating shaft 6 and thimble 1, insulating sleeve 10 is provided with between rotating shaft 6 and rotor 7, insulating sleeve 10 is condenser-type terminal, rotor 7 is provided with the rotor windings 11 of closed-loop path, stator 8 is provided with stator winding 12, on the electric wire 13 that stator winding 12 exports, cover has cover spool 14, upper cover 2 left end has the first outlet 18, the upper cover 2 of first outlet 18 left and right sides is fixed with wire outlet seat 15, wire outlet seat 15 and first exports 18 opposite positions and has the second outlet 19, cover spool 14 is successively through the first outlet 18 and the second outlet 19, cover spool 14 and first is provided with rubber seal 16 between exporting 18, second outlet 19 inwalls are provided with wearing layer 17.
During work, first by electric wire 13 indirect current in the cover spool 14 of extraneous stator winding 12, rotating magnetic field is produced after stator winding 12 indirect current, this rotating magnetic field cutting rotor winding 11, electromotive force will be induced in rotor windings 11, generation current in the rotor windings 11 of closed circuit, the electric current of rotor 7 and rotating magnetic field interact, the effect being subject to power makes rotor 7 rotate along with rotating magnetic field by rotor 7, and then rotor 7 drives rotating shaft 6 rotary motion, rotating shaft 6 drives the wheel rotation of blower fan, for blower fan provides power producer, rotor 7 and rotating shaft 6 insulate and isolate by the insulating sleeve 10 between rotating shaft 6 and rotor 7, the interference signal in magnetic field is produced for shielding stator winding 12, it is inner that Gask-O-Seal 9 between rotating shaft 6 and upper cover 2 can make extraneous fuel gas can not enter thimble 1, cover spool 14 and first export rubber seal 16 between 18 and can be coated on overlapping spool 14 together with electric wire 13 squeezed tight and overlap spool 14 outside, effectively can prevent making extraneous fuel gas can not enter thimble 1 inner, simultaneously in machine operation process, the heat that stator winding 12 distributes is absorbed rapidly by the ethylene glycol type cooling fluid in the condensation chamber 4 of thimble 1 lowers the temperature, the explosion-proof chamber 5 of thimble 1 utilizes the polyurethane foamed material of its inside can play the effect of explosion-proof buffering, thimble 1 is made to be unlikely to deformation occurs.
Utilize technical solutions according to the invention, or those skilled in the art being under the inspiration of technical solution of the present invention, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection scope of the present invention.
Claims (5)
1. an explosion-proof electric machine, is characterized in that: comprise thimble, upper cover, lower cover, condensation chamber, explosion-proof chamber, rotating shaft, rotor, stator, Gask-O-Seal, insulating sleeve, rotor windings, stator winding, electric wire, cover spool, wire outlet seat, rubber seal and wearing layer, described thimble upper end is fixed with upper cover, described thimble lower end is fixed with lower cover, described thimble ecto-entad is provided with condensation chamber and explosion-proof chamber successively, described thimble inside is provided with rotating shaft, described rotating shaft lower end is rotationally connected lower cover, upper end is passed upper cover and is rotationally connected with it, Gask-O-Seal is provided with between described rotating shaft and upper cover, rotor and stator is provided with successively between described rotating shaft and thimble, insulating sleeve is provided with between described rotating shaft and rotor, described rotor is provided with the rotor windings of closed-loop path, described stator is provided with stator winding, on the electric wire that described stator winding exports, cover has cover spool, described upper cover left end has the first outlet, the described first outlet left and right sides covers and is fixed with wire outlet seat, described wire outlet seat and first exports opposite position and has the second outlet, described cover spool is successively through the first outlet and the second outlet, rubber seal is provided with between described cover spool and first exports, described second outlet inside wall is provided with wearing layer.
2. a kind of explosion-proof electric machine according to claim 1, is characterized in that: the material of described thimble, upper cover and lower cover is alloy steel material.
3. a kind of explosion-proof electric machine according to claim 1, is characterized in that: be filled with ethylene glycol type cooling fluid in described condensation chamber.
4. a kind of explosion-proof electric machine according to claim 1, is characterized in that: be filled with polyurethane foam in described explosion-proof chamber.
5. a kind of explosion-proof electric machine according to claim 1, is characterized in that: described insulating sleeve is condenser-type terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415646.6A CN105356647A (en) | 2014-08-21 | 2014-08-21 | Novel explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415646.6A CN105356647A (en) | 2014-08-21 | 2014-08-21 | Novel explosion-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105356647A true CN105356647A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410415646.6A Pending CN105356647A (en) | 2014-08-21 | 2014-08-21 | Novel explosion-proof motor |
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| Country | Link |
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| CN (1) | CN105356647A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499448A (en) * | 2017-08-16 | 2017-12-22 | 二工防爆科技股份有限公司 | A kind of flame-proof electric motor for electric bicycle |
| CN107666198A (en) * | 2017-11-28 | 2018-02-06 | 威海众泰电机有限公司 | A kind of fire-proof motor casing |
| CN110492654A (en) * | 2019-07-29 | 2019-11-22 | 浙江联宜电机有限公司 | Rear end cap assembly and decelerating motor |
-
2014
- 2014-08-21 CN CN201410415646.6A patent/CN105356647A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499448A (en) * | 2017-08-16 | 2017-12-22 | 二工防爆科技股份有限公司 | A kind of flame-proof electric motor for electric bicycle |
| CN107666198A (en) * | 2017-11-28 | 2018-02-06 | 威海众泰电机有限公司 | A kind of fire-proof motor casing |
| CN107666198B (en) * | 2017-11-28 | 2023-06-23 | 威海众泰电机有限公司 | Explosion-proof motor casing |
| CN110492654A (en) * | 2019-07-29 | 2019-11-22 | 浙江联宜电机有限公司 | Rear end cap assembly and decelerating motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |