CN201956877U - Electromagnet gear box - Google Patents
Electromagnet gear box Download PDFInfo
- Publication number
- CN201956877U CN201956877U CN2011200767212U CN201120076721U CN201956877U CN 201956877 U CN201956877 U CN 201956877U CN 2011200767212 U CN2011200767212 U CN 2011200767212U CN 201120076721 U CN201120076721 U CN 201120076721U CN 201956877 U CN201956877 U CN 201956877U
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- gear case
- gear box
- links
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an electromagnet gear box which comprises a casing, a stator and a rotor; the stator is fixedly installed on the casing, and windings are wounded on the stator; the rotor consists of a first rotor which is connected with an input shaft and a second rotor which is connected with an output shaft, the input shaft is connected with a wind turbine generator system, and permanent magnet bodies with different magnet pole pairs are respectively installed on the first rotor and the second rotor. The electromagnet gear box has the advantages of light device weight, high working efficiency, low loss and long service life and is suitable for popularization and application.
Description
Technical field
The utility model relates to a kind of gear box, specifically is a kind of electromagnetic gear case of design.
Background technology
The application of gear box in motor is very extensive, just often uses in the middle of wind turbine generator, and is an important mechanical part, and its main function is that the transmission of power that wind wheel is produced under the wind-force effect is given generator and made it obtain corresponding rotating speeds.Usually the rotating speed of wind wheel is very low, does not far reach the desired rotating speed of generator for electricity generation, must be used for by the speedup of gear box gear pair realizing, so also gear box is referred to as gearbox.
What present most wind turbine generator adopted all is mechanical gearbox.And wind turbine generator was generally 20 years useful life, and its territorial environment of living in is abominable, and the gear box that is used at present is because often spin friction, the time regular meeting leakage of oil or other mechanical breakdowns take place, be difficult to reach the life-span in 20 years.Often need repairing or change gear box, yet the gear box of wind turbine generator all is installed in the high-altitude, maintenance and change the operation comparison difficulty of getting up.Because the repair and replacement of gear box cause several days time of whole wind group of motors shut-down operation, cause the unnecessary wasting of resources through regular meeting.
The CN101218733 patent discloses a kind of infinite variable speed electrical gearbox that has, and it comprises the power shaft that is connected with the control device of internal combustion engine, and power shaft is connected with output shaft by power transmission device.Wherein power transmission device comprises the magnet that is connected with power shaft, and magnet induced electricity power enters the coil that is connected with output shaft, utilizes the switching device that is connected with coil to produce the magnetic field that makes the output shaft rotation.It is that rotor is constituted rotatable output shaft, and stator is constituted rotatable power shaft, and the variation of the power output by the internal combustion engine that links to each other with stator realizes the infinitely variable speeds of gear box.For the application of electromagnetic gear case provides a kind of thinking, but its rotational stator needs link to each other with internal combustion engine, can't be applicable to wind turbine generator.
Summary of the invention
The electromagnetic gear case that the purpose of this utility model provides that a kind of wear rate is low, the life-span is long, be used for wind turbine generator.
For reaching above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of electromagnetic gear case comprises shell, stator and rotor, and wherein, stator is fixedly mounted on the shell, twines stator winding on the stator; Rotor is made up of with second rotor that links to each other with output shaft the first rotor that links to each other with power shaft, and power shaft links to each other with wind turbine generator, is separately installed with the different permanent magnet of magnetic pole logarithm on the first rotor and second rotor.
Described electromagnetic gear case, wherein, the permanent magnet of installing on the described the first rotor rotates under the wind turbine generator that links to each other with power shaft drives, and excites described stator to produce exciting current; Electric current in described second rotor induction stator rotates with drive output shaft under the permanent magnet of second rotor cooperates at stator winding.
Described electromagnetic gear case, wherein, described stator is the class T-shape, and the first rotor and second rotor are respectively in the both sides of stator.
Described electromagnetic gear case, wherein, described stator is class " Ω " type or class " U " type, and the first rotor and second rotor are respectively in the interior outside of stator.
Described electromagnetic gear case, wherein, the speed increasing ratio of gear box equals the ratio between the permanent magnetism magnetic pole logarithm of the permanent magnetism magnetic pole logarithm of the first rotor and second rotor.
Principle of the present utility model is that the principle of magneto alternator and permanent magnet synchronous motor is combined, for ease of explanation, can be with the gear box separated into two parts, a part is a power generation part, a part is electronic part, stator winding of power generation part and electronic partial common, promptly the stator winding electric current of power generation part can directly be passed in the stator winding of electronic part.Therefore the first rotor when power generation part rotates with n1, and the stator winding of power generation part produces exciting current, mean that also this electric current has also flow in the stator of electronic part simultaneously, thereby second rotor that drives electronic part rotates with n2.
Rotating speed=60* frequency/magnetic pole logarithm according to synchronous machine.If the rotating speed of power generation part the first rotor is n1, permanent magnetism magnetic pole logarithm is that P1, power frequency are f1; Electronic part rotating speed is that n2, permanent magnetism magnetic pole logarithm are that P2, power frequency are f2.Because power generation part directly is connected with electronic part, not through over commutation, so f1=f2, again because of n1=60f1/P1, n2=60f2/P2, thus n1*P1=n2*P2, so P1/P2=n2/n1=K.K is the speed increasing ratio of electromagnetic gear case.
Electromagnetic gear case of the present utility model, the permanent magnet that adopts the different magnetic poles logarithm and stator winding cooperate mechanical driving devices such as the speed change that realizes gear box, single unit system gearless, the basic nothing oil of realizing is operated, and equipment failure rate is low, and it is little to wear and tear, energy consumption is low, and is in light weight, high efficiency, life-span is long, the basic realization and the same life-span of wind-powered electricity generation unit need not to repair or change gear box midway, saved manpower and materials, avoided the wasting of resources, be fit to very much apply.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of a kind of form of the utility model electromagnetic gear case;
Fig. 2 is the sectional structure schematic diagram of the another kind of form of the utility model electromagnetic gear case.
Embodiment
Below in conjunction with drawings and Examples the utility model is further detailed.
Embodiment 1:
A kind of electromagnetic gear case comprises shell 1, stator and rotor 4, and wherein, stator 4 is the class T-shape, and it is fixedly mounted on the shell 1, is wound with stator winding on the stator 1.Rotor comprises the first rotor 2 and second rotor, 3 compositions, and the first rotor 2 is positioned at a side of stator 4 T-shapes and links to each other with power shaft 5, rotates under the drive of the wind turbine generator that links to each other with power shaft 5 (being demonstration among the figure).Second rotor 3 is located at the opposite side of the stator relative with the first rotor 4, and promptly angle is 180 degree between the first rotor and second rotor.Second rotor 3 links to each other with output shaft 6, and output shaft 6 other ends can link to each other with generating set.Be separately installed with the different permanent magnet of magnetic pole logarithm on the first rotor 2 and second rotor 3.During use, the first rotor 2 rotates under wind turbine generator drives, and excites stator 4 to produce exciting current; Electric current in the second rotor 3 induction stators 4 is in stator winding and drive output shaft 6 rotations under the permanent magnet of second rotor 3 cooperates.Because the speed increasing ratio of gear box equals the ratio between the permanent magnetism magnetic pole logarithm of the permanent magnetism magnetic pole logarithm of the first rotor 2 and second rotor 3.Therefore can realize the speedup or the deceleration of the different proportion of gear box by the permanent magnetism magnetic pole logarithm of adjusting the first rotor 2 and second rotor 3.
Basic identical with structure among the embodiment 1, difference is that stator 4 is class " U " type or class " Ω " type; The first rotor 2 is located at the inside of stator 4, and second rotor 3 is class " U " type or class " π " type, is located at the outside of stator 4.Can certainly be that second rotor is located at inside, and the first rotor be class " U " type or class " π " type, is located at the outside of stator.
Electromagnetic gear case of the present utility model cooperates the speed change of stator winding realization gear box by the permanent magnet of different magnetic poles logarithm on the first rotor 2 and second rotor 3.Wherein, the first rotor 2 rotates with n1 under the drive of wind turbine generator, and the stator winding on the stator 4 excites the generation exciting current through the first rotor 2, drives second rotor 3 and rotates with n2.The speed increasing ratio K=n2/n1=P1/P2 of gear box, wherein, P1 is the magnetic pole logarithm of the first rotor 2, P2 is the magnetic pole logarithm of second rotor 3.
The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma qualification.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize the technical solution of the utility model that the foregoing description is made all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. an electromagnetic gear case comprises shell, stator and rotor, it is characterized in that:
Stator is fixedly mounted on the shell, twines stator winding on the stator; Rotor is made up of with second rotor that links to each other with output shaft the first rotor that links to each other with power shaft, and power shaft links to each other with wind turbine generator, is separately installed with the different permanent magnet of magnetic pole logarithm on the first rotor and second rotor.
2. electromagnetic gear case according to claim 1 is characterized in that:
The permanent magnet of installing on the described the first rotor rotates under the wind turbine generator that links to each other with power shaft drives, and excites described stator to produce exciting current; Electric current in described second rotor induction stator rotates with drive output shaft under the permanent magnet of second rotor cooperates at stator winding.
3. electromagnetic gear case according to claim 2 is characterized in that:
Described stator is the class T-shape, and the first rotor and second rotor are respectively in the both sides of stator.
4. electromagnetic gear case according to claim 2 is characterized in that:
Described stator is class " Ω " type or class " U " type, and the described the first rotor and second rotor are respectively in the interior outside of stator.
5. according to arbitrary described electromagnetic gear case among the claim 1-4, it is characterized in that:
The speed increasing ratio of gear box equals the ratio between the permanent magnetism magnetic pole logarithm of the permanent magnetism magnetic pole logarithm of the first rotor and second rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200767212U CN201956877U (en) | 2011-03-22 | 2011-03-22 | Electromagnet gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200767212U CN201956877U (en) | 2011-03-22 | 2011-03-22 | Electromagnet gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956877U true CN201956877U (en) | 2011-08-31 |
Family
ID=44500979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200767212U Expired - Lifetime CN201956877U (en) | 2011-03-22 | 2011-03-22 | Electromagnet gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956877U (en) |
-
2011
- 2011-03-22 CN CN2011200767212U patent/CN201956877U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101764491B (en) | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof | |
| US20110018383A1 (en) | Permanent-magnet switched-flux machine | |
| US20110037333A1 (en) | Variable magnetic gears | |
| CN110971095B (en) | Double-stator wind driven generator and power generation system | |
| CN101487453B (en) | Variable-speed constant-frequency wind power generation plant | |
| US8461730B2 (en) | Radial flux permanent magnet alternator with dielectric stator block | |
| CN102118072B (en) | Automatic accelerating permanent-magnet direct-drive motor | |
| KR101577621B1 (en) | A planetary gear unit on the motor shaft and the center axis of rotation to the right and left two pillars reciprocal rotation two private motor device | |
| Zhu et al. | Recent developments and comparative study of magnetically geared machines | |
| CN202142938U (en) | Large-scale direct driving dial switch magnetic resistance wind driven generator and system thereof | |
| CN201786562U (en) | Dual-stator direct drive permanent magnet wind-driven generator | |
| CN101017998A (en) | Directly driving mixed excitation dual stator wind power dynamotor | |
| CN2865122Y (en) | Direct-driving permanent-magnetic wind-driven generator | |
| CN201956763U (en) | Permanent magnet direct drive motor | |
| CN106849573B (en) | Double-rotor double-winding cylindrical linear generator based on magnetic field modulation principle | |
| CN101615829B (en) | Stator-free double-rotor reverse rotating generator | |
| CN102158045A (en) | Speed change method of gear box and electromagnetic gear box | |
| CN100350716C (en) | High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator | |
| CN102280968A (en) | Large direct-driving disk type switch reluctance wind power generator and system thereof | |
| CN212543616U (en) | Double-speed motor with fault-tolerant function | |
| CN201956877U (en) | Electromagnet gear box | |
| CN202145609U (en) | Double-bearing supported large-scale directly-driven double-stator switch magnetic resistance wind driven generator | |
| CN115378223A (en) | Helicopter electromagnetic power transmission system | |
| CN201274440Y (en) | Direct driving mixed power type water power generator | |
| CN112003437B (en) | Composite structure wind driven generator and power generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |
|
| CX01 | Expiry of patent term |