CN203589929U - Magnetic shunt speed-regulating motor - Google Patents
Magnetic shunt speed-regulating motor Download PDFInfo
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- CN203589929U CN203589929U CN201320703495.5U CN201320703495U CN203589929U CN 203589929 U CN203589929 U CN 203589929U CN 201320703495 U CN201320703495 U CN 201320703495U CN 203589929 U CN203589929 U CN 203589929U
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- magnetic shunt
- speed
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- rotor
- bearings
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Abstract
The utility model discloses a magnetic shunt speed-regulating motor which mainly comprises a stator 7, a rotor 6, a housing 5, bearings and end caps. The stator 7 is fixed in the housing 5. A winding is winded in a wire duct. An iron core part of the rotor is arranged in the stator 7, and the rotor 6 is installed to two ends of the housing 5 through the bearings and the end caps. The motor further comprises a magnetic shunt ring 8 and an axial movement device of the magnetic shunt ring 8. The iron core of the rotor 6 is shorter than an iron core of the stator 7 for a section, and the section of the stator iron core, longer than the rotor iron core, extends inwards with more extending at the end close to the rotor iron core and less extending at the external port end. The inner hole space of the extending part is truncated cone-shaped. The magnetic shunt ring 8, which is corresponding to the truncated cone-shaped space in shape and centrally provided with a cylindrical inner hole, is arranged in the truncated cone-shaped space. The magnetic shunt ring 8 is capable of moving axially when driven by a speed-regulating control device so as to regulate the rotating speed of the motor in a stepless manner. The magnetic shunt speed-regulating motor can replace an existing electromagnetic speed-regulating motor and other products needing speed regulation, and the installation and the usage are convenient.
Description
Technical field
The utility model relates to a kind of motor, the magnetic shunt alternating current motor of especially a kind of energy stepless time adjustment.
Background technology
Alternating current motor is widely used because having many advantages, but much need speed governing operation occasion it seem and have no alternative again, so just in succession there is the speed governing products such as electromagnetic varispeed motor, fluid coupling, frequency converter, permanent-magnet speed governor, in these products, electromagnetic varispeed motor, fluid coupling and permanent-magnet speed governor are all after alternating current motor full-speed operation, again rotating speed is carried out to secondary adjustment, therefore reduced the whole efficiency of equipment; Through frequency converter, the frequency of power frequency electricity is carried out the alternating current motor driving after frequency conversion, although do not need secondary speed control, but frequency converter self work also needs to consume suitable energy, and it is had relatively high expectations to operational environment, powerful frequency converter also will be for it installs an air-conditioner, and power supply is had to certain pollution during work.
Summary of the invention
In order to overcome existing alternating current motor direct deficiency of speed governing under power-frequency voltage, the utility model provides a kind of alternating current motor, this motor not only possesses the characteristic of existing alternating current motor, and motor speed governing easily itself, and simple in structure.
The technical scheme that the utility model solves its technical problem employing is: magnetic shunt adjustable-speed motor mainly comprises stator, rotor, shell, bearing and end cap, the structure of its structure and existing AC asynchronous motor is basic identical, difference is that the iron core of described rotor is shorter one section than stator core, one section of growing of stator core stretches out to inner circle, nearly rotor core end stretches out many, external port end stretches out few, the endoporus space of extension is truncated cone-shaped, in truncated cone-shaped space, there is profile corresponding with its shape, center has the magnetic shunt ring of cylindrical bore, magnetic shunt ring can move axially under the driving of speed-regulating control device.When magnetic shunt annulate shaft is when moving away from rotor core, the performance of magnetic shunt adjustable-speed motor is equivalent to ordinary ac asynchronous motor; When magnetic shunt ring moves axially near rotor, for the magnetic circuit of motor, magnetic shunt ring is in parallel with rotor, and bypass segment is by the magnetic flux of rotor, and when rotor is rotated, the magnetic line of force of cutting reduces, thereby reduction moment, the rotating speed that slows down, magnetic shunt ring from rotor more close to, shunt magnetic is more, rotating speed is lower, by regulating the distance of magnetic shunt ring and rotor just can reach the object that regulates motor speed.
The beneficial effects of the utility model are: 1. this motor not only possesses the excellent properties of existing AC asynchronous motor, can also be in self speed governing under power-frequency voltage, with electromagnetic varispeed motor, after the alternating current motor full speed running of fluid coupling and permanent-magnet speed governor one class, the scheme of secondary speed control is compared again, not only saved equipment investment, and saved the electric energy of secondary speed control equipment autophage in service, compared with frequency converter timing scheme, equipment investment and operating cost have not only been saved, and the power pollution producing while having prevented unsteady flow, reduced the requirement to environment simultaneously.
2. owing to having increased magnetic shunt ring, the inductance value of stator coils of motor is increased, when underloading or zero load, can reduce the electric current of motor, improve power factor.
3. the cone cylinder body shape structure of magnetic shunt ring, in speed regulation process, be to change shunt magnetic amount by the size of adjusting air gap substantially, magnetic flux by magnetic shunt ring is even, be not easy to produce magnetic saturation phenomenon, during speed governing magnetic shunt ring move axially little, the space that speed adjusting gear takies in motor is little, increases few than the volume of existing AC asynchronous motor.
4. wide accommodation, particularly, in the case of the load that drags is indefinite, also can have high power factor and whole efficiency during underloading, can also adapt to more severe running environment.
5. simple in structure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structure cutaway view of first embodiment of the utility model.
Fig. 2 is the structure cutaway view of second embodiment of the utility model.
In figure, 1. rear bearing, 2. rear bearing gland 3. rear end caps, 4. stator winding, 5. shell, 6. rotor, 7. stator, 8 magnetic shunt rings, 9. front end housing, 10. magnetic shunt lining papers cover, 11. servomotor gears, 12. servomotors, 13. gears, 14. fore bearing glands, 15. fore bearings, 16. armature spindles, 17. move axially sleeve, 18. bearings, 19. speed adjustment screws, 20. locking nuts, 21. rotation prevention pin shafts.
Embodiment
In first embodiment shown in Fig. 1, magnetic shunt adjustable-speed motor mainly comprises stator (7), rotor (6), shell (5), fore bearing (15), rear bearing (1), front end housing (9), rear end cap (3), the axial moving device of magnetic shunt ring (8) and magnetic shunt ring (8), the same with existing AC asynchronous motor, stator (7) is fixed in shell (5), in the wire casing of stator (7), be wound with stator winding (4), rotor (6) core portion that armature spindle (16) are housed is placed in stator (7), and by fore bearing (15) and rear bearing (1), be arranged on front end housing (9) and rear end cap (3) respectively, by two end caps, be arranged on respectively again the two ends of shell (5), fore bearing gland (14) is equipped with in the outside of fore bearing (15), rear bearing gland (3) is equipped with in the outside of rear bearing (1), different from existing AC asynchronous motor is, the iron core of rotor (6) is shorter one section than the iron core of rotor (7), one section of growing of stator core inwardly stretches out, nearly rotor core end stretches out many, external port end stretches out few, extension endoporus space is truncated cone-shaped, in truncated cone-shaped space, there is profile corresponding with its shape, center has the magnetic shunt ring (8) of cylindrical bore, magnetic shunt ring (8) uses the material identical with stator core to build up, also can make with the low magnetic material of other conductances, magnetic shunt ring (8) can move axially under the driving of speed-regulating control device, speed-regulating control device has magnetic shunt ring (8), magnetic shunt lining papers cover (10), move axially sleeve (17), two bearings (18), servomotor (12), servomotor gear (11) and gear (13) composition, magnetic shunt lining papers cover (10) is fixed in the interior circular hole of magnetic shunt ring (8), its endoporus has internal thread, move axially sleeve (17) cylindrical and have the external screw thread mating with the internal thread of magnetic shunt lining papers cover (10), endoporus fills two bearings (18), two bearings (18) are contained on armature spindle (16), servomotor (12) adopts stepping motor, be fixed on the outer end end face that moves axially sleeve (17), servomotor gear (11) is housed on spindle nose, servomotor gear (11) engages with the gear (13) that is fixed on magnetic shunt lining papers cover (10) termination, in order to prevent servomotor, follow rotor (6) and rotate, with rotation prevention pin shaft by itself and end cap location.
Servomotor (12) can directly connect power supply by switch, or pass through automatic control system, while needing speed governing, control the operating condition of servomotor (12), make magnetic shunt ring (8) move axially the size of gaps that changes it and stator core, thereby regulate the number of its shunt magnetic, reach the object of adjusting rotary speed.
Second embodiment shown in Fig. 2, be adapted to drag the load that does not need frequent speed governing, different from first embodiment is that speed-regulating control device has magnetic shunt ring (8), magnetic shunt lining papers cover (10), two bearings (18), speed adjustment screw (19), locking nut (20) composition, magnetic shunt lining papers cover (10) is fixed in the interior circular hole of magnetic shunt ring (8), in it, two bearings (18) are equipped with at the two ends of circular hole, two bearings (18) are enclosed within on armature spindle (16), be slidably matched with armature spindle (16), magnetic shunt lining papers cover (10) has projection away from one end of rotor core, in projection, there is screw thread, its screw thread mates with the screw thread of one end of the nearly rotor core of speed adjustment screw (19), the other end of speed adjustment screw (19) passes from front end housing (9), one section that passes has screw thread, on screw thread, be combined with locking nut (20), while needing adjusting rotary speed, unclamp locking nut (20), rotate speed adjustment screw (19), magnetic shunt ring (8) is axially drawn or shifts onto the position that makes rotating speed suitable, then locking nut (20) is locked.
Motor for relatively high power all needs the cooling means that installs fan cooling additional or take other, implements all not draw in illustration for above-mentioned two.
Except the above embodiments, magnetic shunt adjustable-speed motor also can arrange respectively at the two ends of rotor two cover magnetic shunt devices, from the two ends of stator core, it is carried out to shunt magnetic.
Can also adopt above-mentioned technology to make uncanned magnetic shunt adjustable-speed motor; Speed regulation control mechanism also can adopt several different methods, as screw thread rotation axial moving mechanism, inclined-plane gyration axial moving mechanism, straight line push-and-pull displacement move axially, parallelogram break-in is shifted etc., also can configure electric actuator, pneumatic or hydraulic means drives moving axially of magnetic shunt ring, these devices both can, in the inside of motor, also can be arranged on the outside of motor.
Claims (6)
1. a magnetic shunt adjustable-speed motor, mainly comprise stator (7), rotor (6), shell (5), fore bearing (15), rear bearing (1), front end housing (9), rear end cap (3), stator (7) is fixed in shell (5), in the wire casing of stator (7), be wound with stator winding (4), rotor (6) core portion that armature spindle (16) are housed is placed in stator (7), and by fore bearing (15) and rear bearing (1), be arranged on front end housing (9) and rear end cap (3) respectively, by two end caps, be arranged on respectively again the two ends of shell (5), it is characterized in that: motor also has the axial moving device of magnetic shunt ring (8) and magnetic shunt ring (8), the iron core of described rotor (6) is shorter one section than the iron core of stator (7), one section of growing of stator core inwardly stretches out, nearly rotor core end stretches out many, external port end stretches out few, extension endoporus space is truncated cone-shaped, in truncated cone-shaped space, there is profile corresponding with its shape, center has the magnetic shunt ring (8) of cylindrical bore, magnetic shunt ring (8) can move axially under the driving of speed-regulating control device.
2. magnetic shunt adjustable-speed motor according to claim 1, it is characterized in that: described speed-regulating control device has magnetic shunt ring (8), magnetic shunt lining papers cover (10), move axially sleeve (17), two bearings (18), servomotor (12), servomotor gear (11) and gear (13) composition, magnetic shunt lining papers cover (10) is fixed in the interior circular hole of magnetic shunt ring (8), its endoporus has internal thread, move axially sleeve (17) cylindrical and have the external screw thread mating with the internal thread of magnetic shunt lining papers cover (10), endoporus fills two bearings (18), two bearings (18) are contained on armature spindle (16), servomotor (12) is fixed on the outer end end face that moves axially sleeve (17), servomotor gear (11) is housed on spindle nose, servomotor gear (11) engages with the gear (13) that is fixed on magnetic shunt lining papers cover (10) termination.
3. magnetic shunt adjustable-speed motor according to claim 2, is characterized in that: described servomotor (12) adopts stepping motor.
4. magnetic shunt adjustable-speed motor according to claim 2, is characterized in that: described magnetic shunt lining papers cover (10) is located itself and front end housing (9) with rotation prevention pin shaft (21).
5. magnetic shunt adjustable-speed motor according to claim 1, it is characterized in that: described speed-regulating control device has magnetic shunt ring (8), magnetic shunt lining papers cover (10), two bearings (18), speed adjustment screw (19) and locking nut (20) composition, magnetic shunt lining papers cover (10) is fixed in the interior circular hole of magnetic shunt ring (8), in it, two bearings (18) are equipped with at the two ends of circular hole, two bearings (18) are enclosed within on armature spindle (16), be slidably matched with armature spindle (16), magnetic shunt lining papers cover (10) has projection away from one end of rotor core, in projection, there is screw thread, its screw thread mates with the screw thread of one end of the nearly rotor core of speed adjustment screw (19), the other end of speed adjustment screw (19) passes from front end housing (9), one section that passes has screw thread, on screw thread, be combined with locking nut (20).
6. magnetic shunt adjustable-speed motor according to claim 1, is characterized in that: magnetic shunt ring (8) uses the material identical with stator core to build up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703495.5U CN203589929U (en) | 2013-11-11 | 2013-11-11 | Magnetic shunt speed-regulating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703495.5U CN203589929U (en) | 2013-11-11 | 2013-11-11 | Magnetic shunt speed-regulating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589929U true CN203589929U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703495.5U Expired - Fee Related CN203589929U (en) | 2013-11-11 | 2013-11-11 | Magnetic shunt speed-regulating motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203589929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595191A (en) * | 2013-11-11 | 2014-02-19 | 闫堂锁 | Magnetic shunt adjustable-speed motor |
| CN105226898A (en) * | 2015-11-02 | 2016-01-06 | 王宏戈 | Speed governing three phase squirrel cage induction motor |
| CN107086723A (en) * | 2017-06-09 | 2017-08-22 | 重庆力华科技有限责任公司 | Stepless time adjustment motor |
| CN108880067A (en) * | 2018-07-02 | 2018-11-23 | 胡宇和 | A kind of motor bearing installation structure and its installation method |
-
2013
- 2013-11-11 CN CN201320703495.5U patent/CN203589929U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595191A (en) * | 2013-11-11 | 2014-02-19 | 闫堂锁 | Magnetic shunt adjustable-speed motor |
| CN105226898A (en) * | 2015-11-02 | 2016-01-06 | 王宏戈 | Speed governing three phase squirrel cage induction motor |
| CN107086723A (en) * | 2017-06-09 | 2017-08-22 | 重庆力华科技有限责任公司 | Stepless time adjustment motor |
| CN107086723B (en) * | 2017-06-09 | 2023-10-10 | 重庆力华科技有限责任公司 | Stepless speed regulation Motor with a motor housing |
| CN108880067A (en) * | 2018-07-02 | 2018-11-23 | 胡宇和 | A kind of motor bearing installation structure and its installation method |
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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: 20140507 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |