CN102163894A - Combined torque type asynchronous speed regulating motor - Google Patents
Combined torque type asynchronous speed regulating motor Download PDFInfo
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- CN102163894A CN102163894A CN2011100584254A CN201110058425A CN102163894A CN 102163894 A CN102163894 A CN 102163894A CN 2011100584254 A CN2011100584254 A CN 2011100584254A CN 201110058425 A CN201110058425 A CN 201110058425A CN 102163894 A CN102163894 A CN 102163894A
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- 230000001105 regulatory effect Effects 0.000 title abstract description 13
- 230000005291 magnetic effect Effects 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 10
- 230000033228 biological regulation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a combined torque type asynchronous speed regulating motor. The turn number of enameled wires wound on a first stator (2) on a rotor (3) of the motor is greater than that of the enameled wires wound on a second stator (5); a rotor magnetic isolating sleeve (4) is arranged between an iron core and a rotating shaft on two ends of the rotor (3); a rotor magnetic isolating ring (6') is arranged at the outer end of the iron core; a rotor sectional magnetic isolating member (11) is arranged between the iron cores; a transmission turbine (7) of the motor is driven by an external actuator to drive the first stator (2) or the second stator (5) to rotate in an adjustable geometrical angle and be locked in any position; and the rotor (3) is composed of two squirrel-cage rotors. The magnetic fields of the two stators combine the current of the rotors at adjustment sections of the motor to influence the motor by adjusting the included angle of the magnetic fields of the two stators so as to realize the stepless speed regulating for the asynchronous motor.
Description
Technical field
The invention belongs to the motor technology field, relate in particular to the combined moment formula asynchronous speed-adjustable motor that a kind of electromagnetic torque that has at least two different qualities changes the rotor current mode.
Background technology
The speed regulating method of prior art has two classes: the one, and motor speed adjusting is as dc motor speed regulating, the speed governing of change magnetic pole logarithm, frequency control, time variant voltage speed governing and chopping regulating speed.Because the equipment complexity, capacity is big, voltage is high, these methods can not get extensive use; The 2nd, mechanical speed governors is as shift speed governing, Hydraulic Adjustable Speed, coupling device speed governing etc.Because mechanical speed governors must be set up a cover mechanical device, investment is big, energy consumption is high, and sensitivity is poor, failure rate height, maintenance workload are big.Particularly high-power machinery speed governing need set up that equipment is huge, complex structure, expensive fluid-flywheel clutch, frequency converter, chopper wait the speed governing that realizes big machinery, therefore very is unfavorable for applying.
Summary of the invention
The technical problem to be solved in the present invention is, defective at the prior art existence, provide a kind of improved, at least the electromagnetic torque that has two different qualities changes the combined moment formula asynchronous speed-adjustable motor of rotor current mode, this motor can utilize the vector synthetic method to regulate the size and the slip characteristic of electromagnetic torque, directly introduces stepless speed regulation, and can reach good energy-saving effect, and its structure answers simple possible, and advanced technology is reliable.
Technical solution of the present invention is, described combined moment formula asynchronous speed-adjustable motor, as shown in Figure 1, has shell 1, in this shell 1, cylindrical rotor 3 is arranged, coaxial line axially is set with tubular first stator 2 and tubular second stator 5 successively side by side on the described rotor 3.Its technical characterstic is,
The enamelled wire number of turn of twining on the enamelled wire number of turn＞second stator 5 that twines on first stator 2.
The axial two ends of described first stator 2 or second stator 5 are respectively equipped with stator magnetism-isolating loop 8 to form stator every magnetic system.Be provided with rotor magnetic shield pipe 4 between the iron core at described rotor 3 two ends and the rotating shaft.The iron core outer end of described rotor 3 is provided with rotor magnetism-isolating loop 6 '.This rotor magnetism-isolating loop 6 ' be provided with between two iron cores of an end inwardly the rotor segmentation every magnetic 11 to form rotor every magnetic system.If rotating shaft is herein adopted every the magnetic metal and made, also can not establish rotor magnetic shield pipe and rotor magnetism-isolating loop.A radially side of above-mentioned first stator 2 and second stator 5 also is furnished with a transmission worm gear 7 by the peripheral hardware actuator driven, and this transmission worm gear 7 rotates in adjustable geometric angle scope at drive first stator 2 or second stator 5 under the driving of peripheral hardware actuator also can be locked in arbitrary position.And above-mentioned rotor 3 is for identical by 10 numbers of two squirrel-cage bars, and the compound cage rotor of the cage rotor that closely is serially connected composition.
By as can be seen above, the present invention adopts different qualities electromagnetic torque synthetic method, is intended to change synthetic electromagnetic torque characteristic, and the equipment that both guaranteed rotating speed when rated condition is moved is higher, and electric efficiency is also high, guarantees to have regulating characteristics preferably again.In adjustment process, can not cause the increase of motor interior loss, thereby influence energy-saving effect because of stator current significantly rises.
It can also be seen that by above, adopt the difference of stator winding circle and the rotor mouse cage material of use different resistivity, change the length ratio of two mouse cages, can obtain different electromagnetic torque characteristics.Count stator winding and high-resistance rotor squirrel-cage bar, the T among electromagnetic torque curve such as Fig. 2 as multiturn
2Otherwise,, T among electromagnetic torque curve such as Fig. 2
1Because T
1And T
2Revolutional slip during maximum differs bigger, and is recessed for fear of the resultant moment that may occur, and can increase by an additional mouse cage 6 in a side of the cage ring 9 of rotor 3 outer ends, makes the electromagnetic torque T of its generation
0Give resultant moment T
∑With compensation.As can be seen from Figure 2, resultant moment T
∑By T
1, T
2And T
0Three electromagnetic torques are synthetic, possess high-revolving specified electromagnetic torque and regulating characteristics preferably simultaneously.
Operation principle of the present invention is, based on magnetic field, electric current is a kind of vector, can utilize the angle that changes two magnetic fields, make their faradic angles in same motor rotor that same change take place, synthetic induced current is corresponding to change thereby make, and is accomplished the purpose of regulating asynchronous motor speed.As shown in Figure 1, establishing the rotating magnetic field that first stator 2 produces is F
1, the rotating magnetic field that second stator 5 produces is F
2, F
1And F
2Between angle be ∠ α.As shown in Figure 3, F
1And F
2Regulate induced current I in the section rotor at motor
1And I
2, the angle between them also is ∠ α, synthetic induced current is I.The induced current of second stator 5 in additional mouse cage is I
0, it is synthetic not participate in electric current.
When peripheral hardware actuator driven transmission worm gear 7, second stator 5 rotates rotating magnetic field F
2Promptly arrive F thereupon rotating
2' the position, it regulates induced current I in the section at motor
2The also corresponding I that changes to
2' the position, this moment resultant current then become I '.As seen, I ' and I compare, and significant variation has all taken place its size and Orientation.Start with from designing to be connected, make two rotating magnetic field rotating speeds of first stator 2 and second stator 5 identical, turn to unanimity with stator coil.Obviously, regulate the angle ∠ α between first stator 2 and second stator 5, when ∠ α when 0～180 ° changes, the synthetic induced current I that motor is regulated in the section promptly changes to minimum from maximum.That is to say, regulate the angle between two stators, can change resultant moment F
∑Size, thereby realize the purpose of asynchronous motor stepless speed regulation.
The invention has the beneficial effects as follows that two stator fields synthesize motor adjusting section rotor current motor is made a difference, and only need can realize by the angle of adjusting two stator fields, and reach asynchronous motor stepless speed regulation thus.This illustrates that this vector synthesis is a speed regulating method state-of-the-art at present, simple possible, the present invention based on this speed regulating method can be widely used in electric power, chemical industry, machinery, mining, metallurgy, traffic every profession and trade, fully satisfy requirement to mechanical speed governors, compare with current speed adjusting gear commonly used, have following tangible advantage and economic benefit:
1, on device structure, only asynchronous motor is divided into two stators, by same power supply power supply, need not additional any miscellaneous equipment, take up an area of less, save investment and reliability height;
2, the installation and operation maintenance workload is few;
3, control method is simple.Only need to change the size of the geometric angle between stator and the stator, can realize stepless speed regulation;
4, no additional mechanical speed control device and electric device have significantly reduced the consumption of electric energy and mechanical energy, and energy-saving effect is obvious;
5, can solve the hard nut to crack of at present big capacity, high voltage induction motor drive difficulty;
6, in the time of eliminating the large capacity motor startup, the phenomenon that supply voltage reduces significantly;
7, no harmonic wave produces in the speed regulation process, has avoided the harm of harmonic wave to electric power system;
8, help realizing motionization, automation and computerization.Therefore, widely popularize combined moment formula asynchronous speed-adjustable motor, more can satisfy the requirement of working conditions change in all trades and professions production comprehensively, realize that comprehensive overall process is energy-conservation, creating modern energy-saving enterprise, realizing that innovative development has meaning reality, long-range.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the present invention;
Electromagnetic torque combined characteristic reference diagram when Fig. 2 uses for the present invention;
The synthetic situation reference diagram of rotor current vector when Fig. 3 uses for the present invention
Being denoted as in above Fig. 1～3:
The 1-shell,
2-first stator,
The 3-rotor,
4-rotor magnetic shield pipe,
4-second stator,
6-adds mouse cage,
6 '-rotor magnetism-isolating loop,
7-transmission worm gear,
8-stator magnetism-isolating loop,
The 9-cage ring,
The 10-squirrel-cage bar,
The segmentation of 11-rotor is every magnetic.
Embodiment
Figure 1 shows that a specific embodiment of the present invention.Referring to Fig. 1, shell 1 adopts ordinary steel to be made into tubular among this embodiment, outer attached support, and its overall dimension is 601mm * 375mm * 330mm, and voltage is 380V, and three compatible amount are 5.5kw.Place the rotor 3 cylindrical compound cage-shaped structure of shell 1 promptly to be cascaded by two mouse cages, these two mouse cages are by three cage ring 9 clampings, 10 numbers of the squirrel-cage bar of these two mouse cages are identical, and squirrel-cage bar 10 is that the brass copper material of 3mm * 16mm * 135mm and red copper copper material that specification is 3mm * 16mm * 135mm are welded by specification.Rotor magnetism-isolating loop 6 ' is located at the iron core outer end at rotor 3 two ends.The rotor segmentation is located at every magnetic 11 between the iron core at these two ends, and promptly the iron core of rotor 3 is isolated into two sections by segmentation every magnetic 11.Rotor magnetic shield pipe 4 is located between the iron core and rotating shaft at rotor 3 two ends.First stator 2 and second stator 5 all are tubular, and adopting at interval, the fit system coaxial line axially is sleeved on the rotor 3 successively side by side.First stator 2 and second stator 5 are all taken enamelled wire coiling in the usual way, and the every phase number of turn of enamelled wire of twining on first stator 2 is 360 circles, and the every phase number of turn of enamelled wire of twining on second stator 5 is 288 circles.Wherein the axial two ends of second stator 5 are provided with stator magnetism-isolating loop 8 respectively.A radially side of first stator 2 and second stator 5 disposes one by the peripheral hardware actuator driven, and first stator 2 or second stator 5 are rotated in adjustable geometric angle scope and the blocked transmission worm gear 7 in arbitrary position.
The combined moment formula asynchronous speed-adjustable motor of the present embodiment of Gou Chenging is proved to be respond well through manufacturing experimently, trying out thus, has reached designing requirement fully, has realized speed governing and purpose of energy saving.The structure of this motor has following characteristics:
1, the stator design of this motor is two, and wherein any one can both rotate in certain geometric angle scope, and can both lock in arbitrary position;
But 2, two stator parameter close fit, the ratio of choose reasonable two mouse cages, material, squirrel-cage bar shape in the hope of good electromagnetic torque characteristic, are guaranteed good regulating characteristics and energy-saving effect;
3, the stator in two magnetic fields is obvious every the magnetic effect, functional every magnetic and rotor;
4, the complete machine operation conditions is good, and vibration, heating, noise aspects are all normal.Present embodiment can directly carry out stepless speed regulation to asynchronous motor, facts have proved that its outstanding advantage has:
1, two of this motor stators are powered by same power supply, need not additional any other equipment, and are simple in structure, reliability is high, save investment;
2, control method is simple, is beneficial to the user of service and grasps;
3, solved the difficult problem of magnetic speed adjusting technique energy-saving effect difference;
4, the additional harmonic wave of nothing in service produces, and helps power system security;
5, operation maintenance workload is little, and troubleshooting is quick.
Claims (1)
1. a combined moment formula asynchronous speed-adjustable motor has shell (1), in this shell (1), cylindrical rotor (3) is arranged, and described rotor (3) is gone up coaxial line and axially is set with tubular first stator (2) and tubular second stator (5) successively side by side, it is characterized in that,
First stator (2) is gone up the enamelled wire number of turn＞second stator (5) that twines and is gone up the enamelled wire number of turn of twining,
The axial two ends of described first stator (2) or second stator (5) are respectively equipped with stator magnetism-isolating loop (8) to form stator every magnetic system, be provided with rotor magnetic shield pipe (4) between the iron core at described rotor (3) two ends and the rotating shaft, the iron core outer end of described rotor (3) is provided with rotor magnetism-isolating loop (6 '), this rotor magnetism-isolating loop (6 ') be provided with between two iron cores of an end inwardly the rotor segmentation every magnetic (11) to form rotor every magnetic system, above-mentioned first stator (2) also is furnished with a transmission worm gear (7) by the peripheral hardware actuator driven with a radially side of second stator (5), this transmission worm gear (7) rotates in adjustable geometric angle scope at drive first stator (2) or second stator (5) under the driving of peripheral hardware actuator also can be locked in arbitrary position, above-mentioned rotor (3) is identical by two squirrel-cage bars (10) bar number, and the cage rotor that closely is serially connected is formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100584254A CN102163894A (en) | 2011-03-02 | 2011-03-02 | Combined torque type asynchronous speed regulating motor |
| PCT/CN2012/000109 WO2012116572A1 (en) | 2011-03-02 | 2012-01-20 | Combined torque asynchronous variable-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100584254A CN102163894A (en) | 2011-03-02 | 2011-03-02 | Combined torque type asynchronous speed regulating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102163894A true CN102163894A (en) | 2011-08-24 |
Family
ID=44464928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100584254A Pending CN102163894A (en) | 2011-03-02 | 2011-03-02 | Combined torque type asynchronous speed regulating motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102163894A (en) |
| WO (1) | WO2012116572A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012116572A1 (en) * | 2011-03-02 | 2012-09-07 | Li Qizhong | Combined torque asynchronous variable-speed motor |
| CN109639045A (en) * | 2018-12-27 | 2019-04-16 | 六安江淮电机有限公司 | The bending moment speed regulating method of vehicle-mounted disc type electric machine |
| CN110601476A (en) * | 2019-09-17 | 2019-12-20 | 淮阴工学院 | Radial magnetic field axial parallel composite motor |
| CN114069998A (en) * | 2021-11-23 | 2022-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Asynchronous motor and speed regulation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312101A (en) * | 2013-06-04 | 2013-09-18 | 北京交通大学 | Multi-stator squirrel-cage alternating current asynchronous motor |
| CN108599496B (en) * | 2018-05-08 | 2019-07-23 | 刘建平 | Double-stator permanent magnet asynchronous motor and its speed-regulating control circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135869Y (en) * | 1992-09-29 | 1993-06-09 | 李兴源 | Double-stator induction motor and application device thereof |
| CN2239675Y (en) * | 1995-08-07 | 1996-11-06 | 丁一明 | A.C speed adjustable current-limiting start asynchronous motor |
| CN101304203A (en) * | 2007-05-09 | 2008-11-12 | 李其忠 | Phase-moving flow-changing type asynchronization speed-regulating motor |
| CN102163894A (en) * | 2011-03-02 | 2011-08-24 | 李其忠 | Combined torque type asynchronous speed regulating motor |
-
2011
- 2011-03-02 CN CN2011100584254A patent/CN102163894A/en active Pending
-
2012
- 2012-01-20 WO PCT/CN2012/000109 patent/WO2012116572A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012116572A1 (en) * | 2011-03-02 | 2012-09-07 | Li Qizhong | Combined torque asynchronous variable-speed motor |
| CN109639045A (en) * | 2018-12-27 | 2019-04-16 | 六安江淮电机有限公司 | The bending moment speed regulating method of vehicle-mounted disc type electric machine |
| CN109639045B (en) * | 2018-12-27 | 2019-09-13 | 六安江淮电机有限公司 | The bending moment speed regulating method of vehicle-mounted disc type electric machine |
| CN110601476A (en) * | 2019-09-17 | 2019-12-20 | 淮阴工学院 | Radial magnetic field axial parallel composite motor |
| CN114069998A (en) * | 2021-11-23 | 2022-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Asynchronous motor and speed regulation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012116572A1 (en) | 2012-09-07 |
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Addressee: Li Qizhong Document name: Notification of before Expiration of Request of Examination as to Substance |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110824 |