CN203617822U - Explosive-proof variable frequency motor - Google Patents
Explosive-proof variable frequency motor Download PDFInfo
- Publication number
- CN203617822U CN203617822U CN201320830228.4U CN201320830228U CN203617822U CN 203617822 U CN203617822 U CN 203617822U CN 201320830228 U CN201320830228 U CN 201320830228U CN 203617822 U CN203617822 U CN 203617822U
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- China
- Prior art keywords
- rotating shaft
- rotor
- electric machine
- machine casing
- frequency motor
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- Expired - Fee Related
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Abstract
The utility model discloses an explosive-proof variable frequency motor including a motor housing. A rotating shaft is disposed in the motor housing. A rotor is disposed outside the rotating shaft. A stator adaptive to the rotor is disposed on the inner side wall of the motor housing. A junction box is disposed on the outer side wall of the motor housing. A plurality of wiring terminals are disposed in the junction box. The rotor includes a rotor frame. A rotor winding is wound on the rotor frame. Two ends of the motor housing are provided with a front end cover and a rear end cover. The outer side of the motor housing is sleeved by an explosive-proof shell. Two ends of the explosive-proof shell are fixedly connected with the front end cover and the rear end cover through fixed bolts. The two ends of the motor housing are also fixedly connected with the front end cover and the rear end cover through the fixed bolts. According to the utility model, the explosive-proof shell, which is additionally disposed outside the motor housing, can add a protective layer outside the variable frequency motor, improve the intensity of the motor housing, effectively protect the variable frequency motor and extend the service life of the variable frequency motor.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of flame proof variable-frequency motor.
Background technology
In existing subway tunnel, colliery non-working surface digging, often adopt frequency converter to start, motor is regulated to high frequency by low frequency in the time starting, reach motor performance requirement, can effectively extend the useful life of motor, make motor and corollary equipment there is good stability and fail safe, but for the electric equipment in this subway tunnel, colliery non-working surface digging, because needs carry out high-intensity work requirements, the shell of motor is easy to be damaged.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of intensity strong, on probation higher flame proof variable-frequency motor of life-span.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of flame proof variable-frequency motor, comprise electric machine casing, in described electric machine casing, be provided with rotating shaft, described rotating shaft is provided with rotor outward, the madial wall of described electric machine casing is provided with the stator suitable with rotor, the lateral wall of described electric machine casing is provided with terminal box, in described terminal box, be provided with some binding posts, described rotor comprises rotor rack, on described rotor rack, be wound with rotor winding, the two ends of described electric machine casing are provided with front end housing and rear end cap, described electric machine casing outside be arranged with flameproof enclosure, the two ends of described flameproof enclosure are fixedly connected with rear end cap with front end housing by set bolt, the two ends of described electric machine casing are also fixedly connected with rear end cap with described front end housing by described set bolt.
As preferably, described flameproof enclosure is provided with noise reduction circle, and described noise reduction circle is embedded on described explosion-proof casing.Adopt after above-mentioned preferred version, the vibrating noise producing when variable-frequency motor can be worked absorbs, and reduces noise pollution.
As preferably, in described electric machine casing, be provided with stator Fixing clamp-seat with stator corresponding position, described stator Fixing clamp-seat is provided with stator draw-in groove towards a side of rotating shaft, and described stator leans on a side inlay card of electric machine casing in described stator draw-in groove.Adopt after above-mentioned preferred version, the fixed installation dismounting of stator is convenient, and the installation of stator is more firm simultaneously.
As preferably, the two ends of described described rotor rack are provided with the opening distributing along rotor rack even circumferential, and the tail end of described rotor rack is provided with a deep bead, and described rotating shaft tail end is in the outer part provided with the encoder for detection of rotating shaft rotating speed.Adopt after above-mentioned preferred version, deep bead can seal the tail end plane of rotor rack, when rotating shaft is rotated, rotor rack opening and deep bead form a centrifugal fan, thereby the dissipation of heat in electric machine casing can be gone out, and arranging of encoder can pass to the data of rotating shaft rotating speed control device at any time, thereby motor speed is monitored and motor is regulated and controled.
As preferably, in described terminal box, be covered with connector cover body, described terminal box lid and described terminal box snap fit arrange.Adopt after above-mentioned preferred version, terminal box lid detachably arranges, and the binding post of being convenient in staff's butted line box carries out field-strip.
As preferably, described described rotor rack tail end is provided with deep bead draw-in groove by a side of opening, described deep bead is provided with the deep bead fixture block extending towards rotor rack by a side of rotating shaft, described deep bead fixture block and described deep bead draw-in groove snap fit, the side that deep bead deviates from rotor rack is provided with guide vane end stop, in described rotating shaft, be provided with stopper slot with guide vane end stop corresponding position, described guide vane end stop is embedded in stopper slot, the setting that offsets of described guide vane end stop and deep bead.Adopt after above-mentioned preferred version, the installing/dismounting of deep bead is convenient, and it is spacing that the arranging of guide vane end stop can be carried out deep bead, avoids deep bead that the phenomenon that slippage is given up the throne occurs in the time that rotating shaft is rotated.
As preferably, the two ends of described rotating shaft pass respectively described front end housing and rear end cap, and described rotating shaft passes front end housing place and is provided with fore bearing, and described rotating shaft passes rear end cap place and is provided with rear bearing.Adopt after above-mentioned preferred version, the rotation of rotating shaft is smooth and easy more flexibly.
Flame proof variable-frequency motor of the present utility model set up explosion-proof casing outward at electric machine casing, explosion-proof casing can be the outer protective layer that increases of variable-frequency motor, improves the intensity of electric machine casing, effectively protects variable-frequency motor, extends the useful life of variable-frequency motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the external structure schematic diagram of the utility model embodiment explosion-proof casing;
Fig. 3 is the partial enlarged drawing at A place in Fig. 1;
Fig. 4 is the partial enlarged drawing at B place in Fig. 1.
Embodiment
As Figure 1-Figure 4, embodiment of the present utility model is a kind of flame proof variable-frequency motor specifically, comprise electric machine casing 1, in electric machine casing 1, be provided with rotating shaft 2, the outer rotor 3 that is provided with of rotating shaft 2, the madial wall of electric machine casing 1 is provided with the stator 4 suitable with rotor 3, and the lateral wall of electric machine casing 1 is provided with terminal box 11.In terminal box 11, be provided with the binding post 111 of even setting.Rotor 3 comprises rotor rack 31, is wound with rotor winding 32 on rotor rack 31, and the two ends of electric machine casing 1 are provided with front end housing 12 and rear end cap 13, electric machine casing 1 outside be arranged with flameproof enclosure 5.The two ends of flameproof enclosure 5 are fixedly connected with rear end cap 13 with front end housing 12 by set bolt 51.The two ends of electric machine casing 1 are also fixedly connected with rear end cap 13 with front end housing 12 by set bolt 51.Flameproof enclosure 5 is provided with noise reduction circle 52, and noise reduction circle 52 is embedded on explosion-proof casing 5.
In electric machine casing 1, be provided with stator Fixing clamp-seat 6 with stator 4 corresponding positions, stator Fixing clamp-seat 6 is provided with stator draw-in groove 61 towards a side of rotating shaft 2, and stator 4 leans on a side inlay card of electric machine casing 1 in stator draw-in groove 61.The two ends of rotor rack 31 are provided with the opening 311 distributing along rotor rack 31 even circumferentials, and the tail end of rotor rack 31 is provided with a deep bead 7, and rotating shaft 2 tail end is in the outer part provided with the encoder 8 for detection of rotating shaft 2 rotating speeds.In terminal box 11, be covered with connector cover body 112, terminal box lid 112 and terminal box 11 snap fit settings.Rotor rack 31 tail ends are provided with deep bead draw-in groove 312 by a side of opening 311, deep bead 7 is provided with by a side of rotating shaft 2 the deep bead fixture block 71 extending towards rotor rack 31, deep bead fixture block 71 and deep bead draw-in groove 312 snap fit, the side that deep bead 7 deviates from rotor rack 31 is provided with guide vane end stop 72, in rotating shaft 2, be provided with stopper slot 21 with guide vane end stop 72 corresponding positions, guide vane end stop 72 is embedded in stopper slot 21, the setting that offsets of guide vane end stop 72 and deep bead 7.
Rotating shaft 2 two ends pass respectively front end housing 12 and rear end cap 13, and rotating shaft 2 passes front end housing 12 places and is provided with fore bearing 121, and rotating shaft 2 passes rear end cap 13 places and is provided with rear bearing 131.
The basic principle of the operation principle of the operation principle of variable-frequency motor of the present utility model and the variable-frequency motor of prior art is basic identical, difference is: variable-frequency motor of the present utility model outside electric machine casing 1, be provided with explosion-proof casing 5, effectively increased the intensity of motor.
Claims (7)
1. a flame proof variable-frequency motor, comprise electric machine casing, in described electric machine casing, be provided with rotating shaft, described rotating shaft is provided with rotor outward, the madial wall of described electric machine casing is provided with the stator suitable with rotor, it is characterized in that: the lateral wall of described electric machine casing is provided with terminal box, in described terminal box, be provided with some binding posts, described rotor comprises rotor rack, on described rotor rack, be wound with rotor winding, the two ends of described electric machine casing are provided with front end housing and rear end cap, described electric machine casing outside be arranged with flameproof enclosure, the two ends of described flameproof enclosure are fixedly connected with rear end cap with front end housing by set bolt, the two ends of described electric machine casing are also fixedly connected with rear end cap with described front end housing by described set bolt.
2. flame proof variable-frequency motor according to claim 1, is characterized in that: described flameproof enclosure is provided with noise reduction circle, and described noise reduction circle is embedded on described explosion-proof casing.
3. flame proof variable-frequency motor according to claim 1, it is characterized in that: in described electric machine casing, be provided with stator Fixing clamp-seat with stator corresponding position, described stator Fixing clamp-seat is provided with stator draw-in groove towards a side of rotating shaft, and described stator leans on a side inlay card of electric machine casing in described stator draw-in groove.
4. flame proof variable-frequency motor according to claim 1, it is characterized in that: the two ends of described described rotor rack are provided with the opening distributing along rotor rack even circumferential, the tail end of described rotor rack is provided with a deep bead, and described rotating shaft tail end is in the outer part provided with the encoder for detection of rotating shaft rotating speed.
5. flame proof variable-frequency motor according to claim 1, is characterized in that: in described terminal box, be covered with connector cover body, described terminal box lid and described terminal box snap fit arrange.
6. flame proof variable-frequency motor according to claim 1, it is characterized in that: described described rotor rack tail end is provided with deep bead draw-in groove by a side of opening, described deep bead is provided with the deep bead fixture block extending towards rotor rack by a side of rotating shaft, described deep bead fixture block and described deep bead draw-in groove snap fit, the side that deep bead deviates from rotor rack is provided with guide vane end stop, in described rotating shaft, be provided with stopper slot with guide vane end stop corresponding position, described guide vane end stop is embedded in stopper slot, the setting that offsets of described guide vane end stop and deep bead.
7. flame proof variable-frequency motor according to claim 1, is characterized in that: the two ends of described rotating shaft pass respectively described front end housing and rear end cap, and described rotating shaft passes front end housing place and is provided with fore bearing, and described rotating shaft passes rear end cap place and is provided with rear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830228.4U CN203617822U (en) | 2013-12-11 | 2013-12-11 | Explosive-proof variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830228.4U CN203617822U (en) | 2013-12-11 | 2013-12-11 | Explosive-proof variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617822U true CN203617822U (en) | 2014-05-28 |
Family
ID=50770444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830228.4U Expired - Fee Related CN203617822U (en) | 2013-12-11 | 2013-12-11 | Explosive-proof variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370320A (en) * | 2017-08-14 | 2017-11-21 | 江苏环球特种电机有限公司 | A kind of coalmine winch Flame-Proof Three-Phase Induction Motors |
-
2013
- 2013-12-11 CN CN201320830228.4U patent/CN203617822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370320A (en) * | 2017-08-14 | 2017-11-21 | 江苏环球特种电机有限公司 | A kind of coalmine winch Flame-Proof Three-Phase Induction Motors |
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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: 20140528 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |