CN101741176B - Integrated double-rotor electric generator - Google Patents

Integrated double-rotor electric generator Download PDF

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Publication number
CN101741176B
CN101741176B CN2009102644074A CN200910264407A CN101741176B CN 101741176 B CN101741176 B CN 101741176B CN 2009102644074 A CN2009102644074 A CN 2009102644074A CN 200910264407 A CN200910264407 A CN 200910264407A CN 101741176 B CN101741176 B CN 101741176B
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CN
China
Prior art keywords
rotor
reverse gear
gear ring
shunting
machine main
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Expired - Fee Related
Application number
CN2009102644074A
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Chinese (zh)
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CN101741176A (en
Inventor
廖恩荣
李更生
沈沛
杨虎
黄晓辉
王中
李志国
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Nanjing High Accurate Drive Electromechanical Automation Equipment Co Ltd
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Nanjing High Accurate Drive Electromechanical Automation Equipment Co Ltd
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Application filed by Nanjing High Accurate Drive Electromechanical Automation Equipment Co Ltd filed Critical Nanjing High Accurate Drive Electromechanical Automation Equipment Co Ltd
Priority to CN2009102644074A priority Critical patent/CN101741176B/en
Publication of CN101741176A publication Critical patent/CN101741176A/en
Application granted granted Critical
Publication of CN101741176B publication Critical patent/CN101741176B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to an integrated double-rotor electric generator, which comprises a speed change part and an electric generation part, an oil seal is arranged at the joint of the speed change part and the electric generation part, the speed change part and the electric generation part are mounted in the same box body, wherein an input shaft, a motor spindle, a reverse gear ring, an inner rotor and an outer rotor are coaxially arranged, an armature is arranged on the outer rotor, a magnetic pole is arranged on the inner rotor, the electric energy generated in the armature can be output by a slip ring and an electric brush, at least two shunting transmission gear shafts with the same structure are distributed around the input shaft, a steering shaft is arranged between each of the shunting transmission gear shafts and the reverse gear ring, the shunting transmission gear shafts and the steering shafts are all in parallel with the input shaft, and the input shaft drives the motor spindle and the reverse gear ring through the shunting transmission gear shafts and respectively drives the inner rotor and the outer rotor to rotate according to different directions of rotation through the motor spindle and the reverse gear ring.

Description

Integrated double-rotor electric generator
Technical field
The present invention relates to a kind of TRT, especially a kind of birotor generator of electromechanical integration.
Background technology
In today of fast development, the fast development of every profession and trade has caused the rapid increase of energy resource consumption, and the development and utilization of the energy becomes the focus that people pay close attention to.In the utilization of new forms of energy, be example with the wind energy, the utilization of wind energy is practical the most.But the frequency stabilization that the instability of wind-force and electrical network require has formed outstanding contradiction.In numerous solutions, variable speed constant frequency is a generation mode wherein commonly used.
In variable-speed constant-frequency wind power generation mode now: dual feedback wind power generation system and direct-drive wind power system become two kinds of main modes that people adopt.
The double-fed electricity generation system is based on wire-wound asynchronous motor (double feedback electric engine); Its stator winding is inserted common frequency power network; The rotor winding provides frequency, phase place, the variable power supply of amplitude by frequency converter, realizes the AC excitation of motor, and the electricity generation system of this moment can be regulated the frequency of exciting current according to the rotation speed change of wind energy conversion system; Realization constant frequency output, utilized simultaneously stator field directional vector control realized the power factor adjusting.Double feedback electric engine stator in this system is fixed, and rely on the generating of rotor high-speed rotating excitation, and the wind energy conversion system output speed is lower, need realize raising speed through the raising speed gear box.But because the speed ratio of raising speed gear box is bigger, increased progression, tooth tricks and the deadweight of gear box, system cost is increased, influenced the reliability of gear box and system.
The direct-drive type electricity generation system is based on the low-speed permanent-magnet synchronous generator, and prime mover directly is connected with the rotor of generator, and the frequency of stator winding output is become direct current with the AC rectification of rotation speed change, is reverse into the alternating current output with the electrical network same frequency again.This system need add a jumbo frequency converter owing to be that total power changes, and investment is big, and harmonic content is high.The rotating speed of permanent magnet generator is slow in addition, causes the generator volume excessive, and system cost is too high.Though efficient is high in theory for it, reliable operation, being applied to high-power unit has certain limitation.
No matter be the double-fed electricity generation system, or the direct-drive type electricity generation system, generally all adopting independently, gearbox and generator are using on-the-spot installation and combination.This occupation mode requires the output shaft of gearbox and the main shaft of generator (power shaft) that higher concentricity is arranged, otherwise directly can have influence on the useful life of bearing in the installation.The output shaft of gearbox and generator integrated design, especially gearbox is coaxial with the power shaft employing of generator, and in wind-driven generator, adopt the birotor mode to improve the mode of operation of armature and magnetic field speed of related movement, all do not appear in the newspapers.
Summary of the invention
The objective of the invention is to:, a kind of birotor generator of electromechanical integration is provided to the problem of traditional double-fed electricity generation system and the existence of direct-drive type electricity generation system.
The objective of the invention is to realize like this: a kind of integrated double-rotor electric generator is characterized in that: it is made up of speed change and generating two parts, and speed change is provided with oil sealing with the two-part joint portion of generating, and they are installed in the same casing, wherein:
A) power shaft, electric machine main shaft, reverse gear ring and internal rotor, external rotor concentric are provided with; External rotor is provided with armature, and internal rotor is provided with magnetic pole; The electric energy that produces in the armature is through slip ring and brush output;
B) the consistent shunting driving gearshaft of two structures that at least evenly distributes around the power shaft, each is shunted between driving gearshaft and the reverse gear ring and is provided with steering spindle, shunts driving gearshaft, steering spindle is all parallel with power shaft;
C) power shaft is provided with the one-level gear wheel; Shunting driving gearshaft one end is the one-level pinion, and the other end is for turning to driving pinion, and the shunting driving gearshaft is provided with the secondary gear wheel; Electric machine main shaft is provided with the secondary pinion, and steering spindle is provided with tooth sector, also is set with internal rotor on the electric machine main shaft;
D) one-level gear wheel on the power shaft and the one-level pinion of shunting an end in the driving gearshaft; The secondary gear wheel on the shunting driving gearshaft and the secondary pinion of electric machine main shaft; The tooth sector on driving pinion and the steering spindle that turns to of the other end meshes on the shunting driving gearshaft; Tooth sector on the steering spindle and reverse gear ring engagement, reverse gear ring is connected with the external rotor of generator;
E) power shaft, shunting driving gearshaft, reverse gear ring, steering spindle and external rotor all through bearings in casing, in casing, the bearings of the other end through being arranged in the internal rotor front and back is in external rotor through bearings for electric machine main shaft one end.
In the present invention: 2~6 shunting driving gearshafts evenly distribute around the power shaft.
In the present invention: be connected through diaphragm coupling between reverse gear ring and the external rotor
In the present invention: internal rotor is hollow cylindrical shell, and internal rotor is supported and fixed on the electric machine main shaft through muscle, is arranged on the electric machine main shaft of the hollow cylindrical shell of internal rotor also to be set with air exhaust blade, and the casing of motor side end is provided with louvre.
In the present invention: the radiating groove that connects before and after the external rotor outer surface is evenly distributed with, each radiating groove is parallel to each other, and the air inlet of each radiating groove is provided with a wind blade.
In the present invention: the angle of the vertical section of radiating groove and external rotor outer surface is 2~45 degree, and according to the external rotor rotation direction, the air outlet of radiating groove lags behind air inlet.
The invention has the advantages that: because speed change adopts integral structure with generating two parts, not only can guarantee the concentricity of each moving component that all-in-one is inner, prolong the useful life of bearing, and the user use convenient; Because many flow dividing structures are adopted in the variable part, can bigger moment of torsion be provided for generator; Because coaxial reverse dual output structure is adopted in the variable part; Complete machine structure is compact more, and volume is littler, and the armature that it can drive generator rotates according to different directions with magnetic field; Improve the speed of related movement between them greatly, reduced the volume and weight of generator; Because reverse gear ring is connected with external rotor through diaphragm coupling, it can be when wind speed changes, and formation cushions, and absorbs or reduces the impulsive force between reverse gear ring and the external rotor, makes its operation more steady.The present invention compares with the direct-drive type electricity generation system with present traditional double-fed electricity generation system, has tangible technical advantage.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the arrangement mode of the present invention China and foreign countries rotor surface radiating groove;
Fig. 3 is the air inlet of radiating groove and the compound mode sketch map of wind blade.
Among the figure: 1, power shaft, 2, the one-level gear wheel, 3, the shunting driving gearshaft, 4, the secondary gear wheel, 5, steering spindle, 6, tooth sector; 7, reverse gear ring, 8, the secondary pinion, 9, electric machine main shaft, 10, diaphragm coupling, 11, external rotor; 12, air exhaust blade, 13, internal rotor, 14, slip ring and brush, 15, casing, 16, oil sealing; 17, turn to driving pinion, 18, louvre, 19, radiating groove, 20, wind blade, 21 guard rings.
Embodiment
Accompanying drawing is non-limiting to disclose specific embodiment of the present invention, below in conjunction with accompanying drawing the present invention is done to describe further.
Visible by Fig. 1; The present invention is made up of speed change and generating two parts; Speed change is provided with oil sealing 16 with the two-part joint portion of generating, and they are installed in the same casing 15, wherein: power shaft 1, electric machine main shaft 9, reverse gear ring 7 and internal rotor 13, external rotor 11 concentric settings; External rotor 11 is provided with armature, and internal rotor 7 is provided with magnetic pole; The electric energy that produces in the armature is through slip ring and brush 14 outputs; At least evenly the consistent shunting driving gearshaft 3 that contains the one-level pinion of two structures that distribute around the power shaft 1, each is shunted between driving gearshaft 3 and the reverse gear ring 7 and is provided with steering spindle 5, shunts driving gearshaft 3, steering spindle 5 is all parallel with power shaft 1; Power shaft 1 is provided with one-level gear wheel 2; Also be provided with secondary gear wheel 4 on the shunting driving gearshaft 3 and turn to driving pinion 17; Electric machine main shaft 9 one ends are provided with secondary pinion 8, and steering spindle 5 is provided with tooth sector 6, and the other end of electric machine main shaft 9 is set with internal rotor 13; One-level gear wheel 2 on the power shaft 1 and the one-level pinion of shunting in the driving gearshaft 3; Secondary gear wheel 4 on the shunting driving gearshaft 3 and 8 engagements of the secondary pinion of electric machine main shaft 9; The tooth sector 6 on driving pinion 17 and the steering spindle 5 that turns on the shunting driving gearshaft 3 meshes; Tooth sector 6 on the steering spindle 5 and reverse gear ring 7 engagements, reverse gear ring 7 is connected with the external rotor 11 of generator; Power shaft 1, shunting driving gearshaft 3, reverse gear ring 7, steering spindle 5 and external rotor 11 all through bearings in casing 15; In casing 15, the other end is supported in external rotor 11 through the front and back bearings that is arranged in internal rotor 13 to electric machine main shaft 9 one ends through bearings.
In the present embodiment, be connected through diaphragm coupling 10 between reverse gear ring 7 and the external rotor 11; Simultaneously, internal rotor 13 is hollow cylindrical shell, and the casing 15 of motor end is provided with louvre 18, is arranged on the electric machine main shaft 9 of internal rotor 13 hollow cylindrical shells to be set with air exhaust blade 12.
During practical implementation, can be according to the designing requirement of generator, 2~6 shunting driving gearshafts 3 evenly distribute around power shaft 1.
During practical implementation, can also be shown in Figure 3 like Fig. 2, the radiating groove 19 that before and after external rotor 11 outer surfaces are evenly distributed with, connects, each radiating groove 19 is parallel to each other, and the air inlet of each radiating groove 19 is provided with a wind blade 20.Simultaneously, radiating groove 19 is 2~45 degree with the angle of external rotor 11 outer surface vertical sections, and according to external rotor 11 rotation directions, the air outlet of radiating groove 19 lags behind air inlet.
In the present embodiment, external rotor 11 outer rings are enclosed with guard ring 21, and said guard ring 21 is covered on radiating groove 19 beads.
Power source of the present invention not only can adopt wind-force, also can adopt waterpower or firepower or other energy.

Claims (6)

1. integrated double-rotor electric generator is characterized in that: it is made up of speed change and generating two parts, and speed change is provided with oil sealing with the two-part joint portion of generating electricity, and they are installed in the same casing, wherein:
A) power shaft, electric machine main shaft, reverse gear ring and internal rotor, external rotor concentric are provided with; External rotor is provided with armature, and internal rotor is provided with magnetic pole; The electric energy that produces in the armature is through slip ring and brush output;
B) the consistent shunting driving gearshaft of two structures that at least evenly distributes around the power shaft, each is shunted between driving gearshaft and the reverse gear ring and is provided with steering spindle, shunts driving gearshaft, steering spindle is all parallel with power shaft;
C) power shaft is provided with the one-level gear wheel; Shunting driving gearshaft one end is the one-level pinion, and the other end is for turning to driving pinion, and the shunting driving gearshaft is provided with the secondary gear wheel; Electric machine main shaft is provided with the secondary pinion, and steering spindle is provided with tooth sector, also is set with internal rotor on the electric machine main shaft;
D) one-level gear wheel on the power shaft and the one-level pinion of shunting an end in the driving gearshaft; The secondary gear wheel on the shunting driving gearshaft and the secondary pinion of electric machine main shaft; The tooth sector on driving pinion and the steering spindle that turns to of the other end meshes on the shunting driving gearshaft; Tooth sector on the steering spindle and reverse gear ring engagement, reverse gear ring is connected with the external rotor of generator;
E) power shaft, shunting driving gearshaft, reverse gear ring, steering spindle and external rotor all through bearings in casing, in casing, the bearings of the other end through being arranged in the internal rotor front and back is in external rotor through bearings for electric machine main shaft one end.
2. integrated double-rotor electric generator according to claim 1 is characterized in that: 2~6 shunting driving gearshafts evenly distribute around the power shaft.
3. integrated double-rotor electric generator according to claim 1 is characterized in that: be connected through diaphragm coupling between reverse gear ring and the external rotor.
4. according to the described integrated double-rotor electric generator of one of claim 1~3; It is characterized in that: internal rotor is hollow cylindrical shell; Internal rotor is supported and fixed on the electric machine main shaft through muscle; Be arranged on the electric machine main shaft of the hollow cylindrical shell of internal rotor and also be set with air exhaust blade, the casing of motor side end is provided with louvre.
5. integrated double-rotor electric generator according to claim 4 is characterized in that: the radiating groove that connects before and after the external rotor outer surface is evenly distributed with, and each radiating groove is parallel to each other, and the air inlet of each radiating groove is provided with a wind blade.
6. integrated double-rotor electric generator according to claim 5 is characterized in that: the angle of the vertical section of radiating groove and external rotor outer surface is 2~45 degree, and according to the external rotor rotation direction, the air outlet of radiating groove lags behind air inlet.
CN2009102644074A 2009-12-21 2009-12-21 Integrated double-rotor electric generator Expired - Fee Related CN101741176B (en)

Priority Applications (1)

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CN2009102644074A CN101741176B (en) 2009-12-21 2009-12-21 Integrated double-rotor electric generator

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Application Number Priority Date Filing Date Title
CN2009102644074A CN101741176B (en) 2009-12-21 2009-12-21 Integrated double-rotor electric generator

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CN101741176A CN101741176A (en) 2010-06-16
CN101741176B true CN101741176B (en) 2012-02-29

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109038900A (en) * 2018-08-13 2018-12-18 江苏磁谷科技股份有限公司 It is a kind of it is high heat dissipation without shell winding outer-rotor structure
CN114123649A (en) * 2020-08-31 2022-03-01 陆继荣 Movable balance wind driven generator for passenger train
CN113206574B (en) * 2021-05-13 2022-07-05 山东科瑞油气装备有限公司 Multi-motor parallel operation driving structure and multi-motor parallel operation mounting method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488053A (en) * 1981-02-17 1984-12-11 Lockheed Corporation Electric constant speed/variable speed drive/generator assembly
CN85105662A (en) * 1985-07-29 1985-10-10 浙江大学 Variable speed and constant frequency synchro-asynchronous alternator
CN2922254Y (en) * 2005-11-11 2007-07-11 何东升 Electric vehicle generating device
CN201590718U (en) * 2009-12-21 2010-09-22 南京高传机电自动控制设备有限公司 Integral twin-rotor generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488053A (en) * 1981-02-17 1984-12-11 Lockheed Corporation Electric constant speed/variable speed drive/generator assembly
CN85105662A (en) * 1985-07-29 1985-10-10 浙江大学 Variable speed and constant frequency synchro-asynchronous alternator
CN2922254Y (en) * 2005-11-11 2007-07-11 何东升 Electric vehicle generating device
CN201590718U (en) * 2009-12-21 2010-09-22 南京高传机电自动控制设备有限公司 Integral twin-rotor generator

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SE01 Entry into force of request for substantive examination
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EE01 Entry into force of recordation of patent licensing contract

Assignee: Nanjing Juneng Electric Control Automation Equipment Manufacturing Co., Ltd.

Assignor: Nanjing High Accurate Drive Electromechanical Automation Equipment Co., Ltd.

Contract record no.: 2012320000641

Denomination of invention: Integrated double-rotor electric generator

Granted publication date: 20120229

License type: Exclusive License

Open date: 20100616

Record date: 20120523

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120229

Termination date: 20121221