CN201191796Y - Brushless excitation system embedded synchronous electric motor - Google Patents
Brushless excitation system embedded synchronous electric motor Download PDFInfo
- Publication number
- CN201191796Y CN201191796Y CNU2008200580473U CN200820058047U CN201191796Y CN 201191796 Y CN201191796 Y CN 201191796Y CN U2008200580473 U CNU2008200580473 U CN U2008200580473U CN 200820058047 U CN200820058047 U CN 200820058047U CN 201191796 Y CN201191796 Y CN 201191796Y
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- iron core
- exciter
- motor
- rotating shaft
- excitation system
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Abstract
The utility model discloses a synchronous motor which is arranged in a brushless excitation system and comprises a motor stator, a motor rotor with a main iron core and a rotation shaft, end covers which are located on two ends of the motor stator and the main iron core, sliding bearings which are located on two ends of the rotation shaft, a rotary exciter rotor which is coaxial with the rotation shaft and comprises an exciter iron core and an excitation winding, and a rotary rectifying device which is fixed on the rotation shaft of the motor, wherein the exciter iron core is arranged between the main iron core and the sliding bearings of a none shaft-extension end on the rotation shaft and is located outside the end covers, and the rotary rectifying device is located between the main iron core and the exciter iron core and is located inside the end covers. Since the technical scheme of the synchronous motor which is arranged in a brushless excitation system of the utility model is adopted, the main shaft of the motor does not need to strike long holes which are not threaded through a central air hole of the rotation shaft, and the axial size of the motor can be compact. Simultaneously, the repair and installation of an exciter are more convenient and can be realized without disassembling bearings of the electromotor.
Description
Technical field
The utility model relates to the built-in synchronous machine of a kind of brushless excitation system.
Background technology
The underloading of brushless excitation synchronous motor or heavy-load start are widely used in ball mill, air blast, compressor, rolling mill of industries such as metallurgy, petrochemical industry etc.The synchronous electronic use brushless excitation system of brushless excitation.Excitation circuit slip ring and brush holder that motor body is original will be cancelled, and the substitute is the whole system loop of being made up of AC exciter and rotary rectification device.The composition of excitation system exchanges main exciter by main rotor, the anti-pivot formula of 200HZ, and 400HZ permanent magnetism pilot exciter and excitation voltage regulation device are formed.Its rotating part comprises: exchange main exciter armature, rotating rectifier dish, permanent magnetism pilot exciter rotor.Stationary part comprises: exchange main exciter magnetic field, permanent magnetism pilot exciter armature and excitation voltage regulation device, other joins the manual excitation regulation device of a cover 50HZ power frequency.Because motor is brushless excitation, the position of rectifying disc and exciter directly has influence on the processing technology of the length dimension and the axle of motor.Existing brushless excitation synchronous motor is in order to overhaul conveniently, exciter and rotating rectifier dish is placed on the outside of non-shaft stretching end bearing.The mode of this installation exciter and rotating rectifier dish, can bring following two problems: one, make troubles for the processing of electric machine main shaft, slotted hole must be beaten in the electric machine main shaft center, rotor leading wire is guided to the non-shaft stretching end sliding bearing of electric machine main shaft from slotted hole the outside is connected with excitation winding, and this slotted hole does not communicate with the centre porosity of rotating shaft; Its two, the electrode axial dimension is not compact, the length dimension of motor will be elongated in the outside that is placed on the non-shaft stretching end sliding bearing of exciter and rotating rectifier dish.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to provide a kind of brushless excitation system built-in synchronous machine, and it can make the axial dimension compactness of motor.
The technical scheme that realizes above-mentioned purpose is: the synchronous machine that a kind of brushless excitation system is built-in, comprise motor stator, rotor with main iron core and rotating shaft, be positioned at the end cap at motor stator and main iron core two ends, be positioned at the sliding bearing at rotating shaft two, with the coaxial rotary exciter rotor that comprises exciter iron core and excitation winding of rotating shaft and be fixed on rotary rectification device on the machine shaft, described exciter iron core is located between the sliding bearing of non-shaft stretching end in main iron core and the rotating shaft and is positioned at the end cap outside, and described rotary rectification device is between main iron core and exciter iron core and be positioned at the end cap inboard.
The synchronous machine that above-mentioned brushless excitation system is built-in, wherein, the excitation winding of described exciter is connected with rectifying device by busbar.
The synchronous machine that above-mentioned brushless excitation system is built-in, wherein, two annulus that the spacer sleeve of described busbar by a screw rod and studdle is contained in the rotating shaft are connected excitation winding with rectifying device.
Owing to adopted the technical scheme of the built-in synchronous machine of brushless excitation system of the present utility model, make electric machine main shaft need not beat again and the centre porosity of the rotating shaft slotted hole of axis mutually not, can make the axial dimension compactness of motor again.Maintenance, the installation of while exciter are all very convenient, need not tear the bearing of motor open and just can realize.
Description of drawings
Fig. 1 is the structural representation of the built-in synchronous machine of brushless excitation system of the present utility model;
Fig. 2 is the rotor structure schematic diagram of the built-in synchronous machine of brushless excitation system of the present utility model.
Embodiment
In order to understand the technical solution of the utility model better, also be described in detail in conjunction with the accompanying drawings below by specific embodiment:
See also Fig. 1 and Fig. 2, the synchronous machine that brushless excitation system of the present utility model is built-in comprises motor 1, seat formula sliding bearing 2, rotary exciter 3, rotary rectification device 4, cover plate 5, support 6 and end cap 7 wherein,
Seat formula sliding bearing 2 is fixed on the support 6 and is supported on two of rotating shaft 121.
Rotary exciter 3 is the revolving-armature type rotor, comprise exciter rotor 32 with exciter iron core 321 and excitation winding 322, laminated core 321 is fixed on exciter 3 rotor field spiders, interchange three phase windings 322 of exciter 3 embed in laminated core 321 grooves, after insulation is handled, put the rotating shaft 121 of motor again, rotate synchronously with rotating shaft 121, this exciter iron core 321 is set between the sliding bearing 2 of non-shaft stretching end in main iron core 122 and the rotating shaft 121 and is positioned at the outside of end cap 7; Stator 31 magnetic poles of exciter 3 are fixed on the support 6 that two halves form, and magnetic pole is fixing to adopt bolt, so the maintenance of exciter 3, install all easily, need not tear the bearing 2 of motor 1 open and just can realize.
The excitation winding 322 of exciter 3 is connected with the input of rectifying device 4 by busbar 9.Two annulus 92 that the spacer sleeve of busbar 9 by a screw rod 91 and studdle 91 is contained in the rotating shaft 121 are connected the input of excitation winding 322 with rectifying device 4.The output of rectifying device 4 connects the rotor winding of motor 1.
Make and to beat again on the machine shaft 121 and the centre porosity of rotating shaft 121 slotted hole of axis mutually not, can make the axial dimension compactness of motor 1 again.Rotating rectifier dish 40 places in the rotating shaft 121 between motor rotor 12 and the AC excitation machine rotor 32, and the maintenance of rectifying device 4, maintenance, replacing element are convenient, need not pull down exciter rotor 32.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (3)
1. synchronous machine that brushless excitation system is built-in, comprise motor stator, rotor with main iron core and rotating shaft, be positioned at the end cap at motor stator and main iron core two ends, be positioned at the sliding bearing at rotating shaft two, with the coaxial rotary exciter rotor that comprises exciter iron core and excitation winding of rotating shaft and be fixed on rotary rectification device on the machine shaft, it is characterized in that, described exciter iron core is located between the sliding bearing of non-shaft stretching end in main iron core and the rotating shaft and is positioned at the end cap outside, and described rotary rectification device is between main iron core and exciter iron core and be positioned at the end cap inboard.
2. the built-in synchronous machine of brushless excitation system according to claim 1 is characterized in that the excitation winding of described exciter is connected with rectifying device by busbar.
3. the built-in synchronous machine of brushless excitation system according to claim 2 is characterized in that, two annulus that the spacer sleeve of described busbar by a screw rod and studdle is contained in the rotating shaft are connected excitation winding with rectifying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200580473U CN201191796Y (en) | 2008-05-06 | 2008-05-06 | Brushless excitation system embedded synchronous electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200580473U CN201191796Y (en) | 2008-05-06 | 2008-05-06 | Brushless excitation system embedded synchronous electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201191796Y true CN201191796Y (en) | 2009-02-04 |
Family
ID=40335955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200580473U Expired - Fee Related CN201191796Y (en) | 2008-05-06 | 2008-05-06 | Brushless excitation system embedded synchronous electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201191796Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513119A (en) * | 2016-11-26 | 2017-03-22 | 杨明忠 | Electromagnetically driven mill |
| CN106824410A (en) * | 2016-11-26 | 2017-06-13 | 杨明忠 | Electromagnetic drive grinding machine |
| CN107370275A (en) * | 2017-07-31 | 2017-11-21 | 卧龙电气集团股份有限公司 | A kind of box brushless excitation synchronous motor rotor wiring structure |
| CN113794344A (en) * | 2021-09-10 | 2021-12-14 | 中船重工电机科技股份有限公司 | Synchronous generator capable of shortening axial length |
-
2008
- 2008-05-06 CN CNU2008200580473U patent/CN201191796Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513119A (en) * | 2016-11-26 | 2017-03-22 | 杨明忠 | Electromagnetically driven mill |
| CN106824410A (en) * | 2016-11-26 | 2017-06-13 | 杨明忠 | Electromagnetic drive grinding machine |
| CN107370275A (en) * | 2017-07-31 | 2017-11-21 | 卧龙电气集团股份有限公司 | A kind of box brushless excitation synchronous motor rotor wiring structure |
| CN107370275B (en) * | 2017-07-31 | 2024-03-15 | 卧龙电气南阳防爆集团股份有限公司 | Rotor wiring structure of box-type brushless excitation synchronous motor |
| CN113794344A (en) * | 2021-09-10 | 2021-12-14 | 中船重工电机科技股份有限公司 | Synchronous generator capable of shortening axial length |
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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: 20090204 Termination date: 20160506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |