CN106961207A - Electromagnetic speed variator - Google Patents
Electromagnetic speed variator Download PDFInfo
- Publication number
- CN106961207A CN106961207A CN201610021415.6A CN201610021415A CN106961207A CN 106961207 A CN106961207 A CN 106961207A CN 201610021415 A CN201610021415 A CN 201610021415A CN 106961207 A CN106961207 A CN 106961207A
- Authority
- CN
- China
- Prior art keywords
- differential protection
- transverse differential
- rotor
- speed variator
- exciting windings
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
Abstract
Electromagnetic speed variator, including：Input shaft (1), input rotor (2), first order center roller (3), intermediate stator (4), second level center roller (5), end stator (6), ratio controller (7), output shaft (8).Sensing winding is set on the inside of center roller and intermediate stator, and outside sets Exciting Windings for Transverse Differential Protection.The Exciting Windings for Transverse Differential Protection formation magnetic field of the current excitation input rotor of ratio controller output, input the sensing winding on the inside of field scan first order center roller when rotor is rotated, electric current is generated in sensing winding between in the first stage on the inside of rotor, while the rotating excitation field interaction of two windings produces first order output torque.The induced-current of inner side can encourage the Exciting Windings for Transverse Differential Protection in outside, as shown in drawings, there is 4 pairs of sensing windings and Exciting Windings for Transverse Differential Protection altogether, produce four output torques and exported from output shaft.Ratio controller adjustment inputs the virtual value and frequency of rotor excitation current to adjust output torque and rotating speed.
Description
Technical field
The present invention relates to electromagnetic speed variator.The electromagnetic speed variator is what the electromagnetic principle based on Electrical Motor was set up, and for change rotating speed and torque in mechanical power transmission means, there is provided the rotating speed for meeting target power equipment requirement and torque.
Background technology
Current main flow speed changer is mechanical speed changer, and mechanical transmission applicating history is long, and mature is various informative.Electromagnetic speed variator is the speed change gear set up based on electromagnetic theory, the characteristics of having different from mechanical transmission.
Electromagnetic speed variator of the present invention, physically integrates at least two logic motors, can obtain more preferable power density.And variable-frequency control technique is used, electrodeless variable-speed is realized in a wide range.
The content of the invention
The purpose of the present invention is to realize a kind of electromagnetic speed variator, can continuously change gearratio according to the need for application system.The technology path that the invention is proposed can realize above-mentioned purpose.
Electromagnetic speed variator of the present invention is realized by the speed changer with feature described in claims.
The present invention relates to the mutual conversion between mechanical energy, magnetic field energy, electric energy.It is distributed in different hosts's (rotor or stator), coaxial Exciting Windings for Transverse Differential Protection and sensing winding and constitutes one " logic motor ", multiple such " logic motors " constitutes the electromagnetic speed variator.When the rotating excitation field scanning sensing winding that the Exciting Windings for Transverse Differential Protection of " logic motor " is produced, while generation induced current in winding is sensed, also the rotating excitation field inducted can be produced, two rotating excitation field interactions, a torque in opposite direction equal in magnitude can be produced, the access way of rational setting exciting current, makes the torque of steering identical with input shaft be applied on output shaft, the torque with input shaft counterturn is applied on input shaft or stator.And the induced current that the sensing winding A of one " logic motor " is produced is as the exciting current with A physically consubstantiality or rigidly connected other " logic motors ", the frequency without changing electric current.Logically multiple " logic motors " connects or composition tree constitutes the electromagnetic speed variator.
The alternating current generated is drawn in the sensing winding on stator from one, the magnetic flux density of " logic motor " can be changed by controlling the size of the electric current, so as to change the size of output torque；The size of regulation input rotor (2) exciting current can also reach same effect.After the alternating current rectification variable-frequency exported from the sensing winding of a stator as input rotor (2) field power supply be it is suitable because the size of two electric currents all with torque positive correlation.
" logic motor " in least significant end is considered as an asynchronous induction motor, and the frequency of adjustment input rotor (2) exciting current can adjust this slip of induction motor indirectly, revolutional slip changes the change that will also result in output torque.
Ratio controller can complete the function of the regulation output torque described in [0008] [0009], and output torque changes output speed and can also changed therewith.
The benefit of the electromagnetic speed variator is that the regulation of gearratio is continuous, and this is all welcome in most of speed changer application scenarios.
The benefit of the electromagnetic speed variator is, ratio controller directly receives the electric signal that sends using the system control unit of the electromagnetic speed variator to adjust gearratio, it is no longer necessary to execution unit.
The benefit of the electromagnetic speed variator is that the sensing winding on stator is non-moving parts, the output power without brush or conducting slip ring, therefore has the advantage that simple, functions reliably and efficiently rate.
The benefit of the electromagnetic speed variator is that to manufacture the materials of speed changer needs be that in the market is easily obtained, and technique is current ripe technique.Electromagnetic speed variator of the present invention can be applied in powerful transmission system, and increase " logic motor " quantity is adapted to require powerful occasion.
Brief description of the drawings
Below, the present invention is elaborated with reference to appended accompanying drawing according to preferred example.It is shown in which：
Accompanying drawing 1 shows the axial sectional view of electromagnetic speed variator.
Accompanying drawing 2 shows the radial cross-section of center roller.
Two winding electrical connection diagrams of the center roller of accompanying drawing 3.
Accompanying drawing 4 shows the rectification circuit from end stator (6) winding output current.
Accompanying drawing 5, which is illustrated, another form of realizes example.
Embodiment
As shown in accompanying drawing [1], fixed input rotor (2) on input shaft (1), first order center roller (3) and second level center roller (5) are rigidly connected with output shaft, and be coaxial with input shaft, mechanically center roller and input shaft can be rotated relatively freely, and intermediate stator (4) is fixed on housing；End stator (6) is fixed on housing.
In this example, input rotor (2) Exciting Windings for Transverse Differential Protection uses the electrical structure of the pole of 3 phase of hidden pole type 4, and exciting current is introduced by brush.When input shaft drives input rotor rotation, the rotary speed in magnetic field is the rotating speed of input shaft and the function of exciting current frequency.
The main body of first order center roller (3) is to constitute barreled structure by silicon steel sheet superposition, inner side sets sensing winding, outside sets Exciting Windings for Transverse Differential Protection, two windings use the electrical structure of the pole of 3 phase of hidden pole type 4, as shown in accompanying drawing [2], two windings use Y-connection, and exit is joined directly together, such as shown in accompanying drawing [3].The structure of second level center roller (5) is identical with first order center roller (3).
The structure of intermediate stator (4) is identical with center roller, and inner side sets sensing winding, and outside sets Exciting Windings for Transverse Differential Protection, and the electrical connection of two windings is similar with center roller.
One sensing winding is set on end stator (6), ratio controller (7) is outputed current to.
First " logic motor "：It is made up of first " logic motor " the sensing winding on the inside of the Exciting Windings for Transverse Differential Protection and first order center roller (3) of input rotor (2), ratio controller (7) provides the exciting current of appropriate frequency and size according to the requirement of system condition to the Exciting Windings for Transverse Differential Protection of " the logic motor ", Exciting Windings for Transverse Differential Protection rotates the rotating excitation field to be formed scanning sensing winding with input shaft, and the input torque size of input shaft is constant to be exported by first order center roller (3) from output shaft.
Second " logic motor "：It is made up of second " logic motor " the sensing winding on the inside of the Exciting Windings for Transverse Differential Protection on the outside of the first center roller (3) and intermediate stator (4).The three-phase alternating current generated from (on the inside of first order center roller (3)) the sensing winding of [0025] first " logic motor " encourages the Exciting Windings for Transverse Differential Protection (on the outside of first order center roller (3)) of second " logic motor ", rotating excitation field is formed, the direction of rotating excitation field is opposite with center roller direction of rotation.(on the inside of intermediate stator (4)) sensing winding that the rotating excitation field scans second " logic motor " produces induced current, and the torque of second " logic motor " formation is exported by first order center roller (3) from output shaft.
3rd " logic motor ", is made up of the 3rd " logic motor " the sensing winding on the inside of the Exciting Windings for Transverse Differential Protection on the outside of intermediate stator (4) and second level center roller (5).The three-phase alternating current generated from (on the inside of intermediate stator (4)) the sensing winding of [0026] second " logic motor " encourages the 3rd " logic motor " Exciting Windings for Transverse Differential Protection (on the outside of intermediate stator (4)), rotating excitation field is formed, the direction of rotating excitation field is identical with center roller direction of rotation.(on the inside of second level center roller (5)) sensing winding that the rotating excitation field scans the 3rd " logic motor " produces induced current, and the torque of the 3rd " logic motor " formation is exported by second level center roller (5) from output shaft.
4th " logic motor ", is made up of the 4th " logic motor " the sensing winding on the inside of the Exciting Windings for Transverse Differential Protection on the outside of second level center roller (5) and end stator (6).The three-phase alternating current generated from (on the inside of second level center roller (5)) the sensing winding of [0027] the 3rd " logic motor " encourages the 4th " logic motor " Exciting Windings for Transverse Differential Protection (on the outside of second level center roller (5)), rotating excitation field is formed, the direction of rotating excitation field is opposite with center roller direction of rotation.(on the inside of end stator (6)) sensing winding that the rotating excitation field scans the 4th " logic motor " produces induced current, and the torque of the 4th " logic motor " formation is exported by second level center roller (5) from output shaft.
The total torque exported from output shaft is the superposition of above-mentioned 4 " logic motor " output torques, and output torque is increased, according to widely known law of conservation of energy, output speed reduction.
The three-phase alternating current that end stator (6) winding is produced is by access ratio controller (7), by the circuit rectifies formation direct current as shown in accompanying drawing [4], ratio controller (7) inputs the three-phase alternating current electric excitation that the direct current becomes suitable frequency the Exciting Windings for Transverse Differential Protection of rotor, is used according to that can also export the direct current that is formed after rectification the need for application system for ancillary equipment.
Above-mentioned [0020]-[0030] describes an example of the electromagnetic speed variator that center roller is constituted using hidden pole type barreled structure.Using identical principle, accompanying drawing 5 illustrates the electromagnetic speed variator of another way of realization, and the winding of wherein center roller uses parallel construction, and the magnetic field for inputting rotor is produced using permanent magnet, and is not provided with intermediate stator.
List of numerals
1. input shaft
2. input rotor
3. first order center roller
4. intermediate stator
5. second level center roller
6. end stator winding
7. ratio controller
8. output shaft
3-1. center roller Exciting Windings for Transverse Differential Protection
3-2. center roller iron cores
3-3. center rollers sense winding.
Claims (8)
1. a kind of electromagnetic type speed changer, has：Input shaft (1), at least one input rotor (2), at least one center roller (3) (5), according to
Multiple intermediate stators (4) can be not provided with or set the need for application system, at least one end stator (6) or end rotor, at least
There is a ratio controller (7).
2. electromagnetic speed variator according to claim 1, can logically be divided into multiple " logic motors ", one " logic motor " is by being distributed
(rotor or stator), coaxial Exciting Windings for Transverse Differential Protection and sensing winding [note 1] composition, one " logic motor " and one on different hosts
The principle of generator is identical, when the rotating excitation field scanning sensing winding that Exciting Windings for Transverse Differential Protection is produced, while generation induced current in winding is sensed,
A torque in opposite direction equal in magnitude can be produced between sensing winding and Exciting Windings for Transverse Differential Protection.
3. the electromagnetic speed variator according to claim 1-2, it is characterized in that：Each torque for the steering identical with input shaft that " logic motor " is produced
It is applied on output shaft, the torque with input shaft counterturn is applied on input shaft or stator.
4. the electromagnetic speed variator according to claim 1-3, is made up of more than one " logic motor ", it is characterized in that：One " logic motor,
The induced current that produces of sensing winding A be used as the excitation with A physically consubstantiality or other rigidly connected " logic motor " Exciting Windings for Transverse Differential Protection
Electric current, the frequency without changing electric current.
5. the electromagnetic speed variator according to claim 1-4, its center roller is characterized in：At least one is set to sense winding on center roller, extremely
A few Exciting Windings for Transverse Differential Protection, two kinds of windings are belonging respectively to different " logic motors ".Sensing winding receives the scanning of rotating excitation field, generates exchange
Electric current.Exciting Windings for Transverse Differential Protection forms the rotating excitation field opposite with the steering of input shaft under the excitation of exciting current.
6. the electromagnetic speed variator according to claim 1-5, its intermediate stator is characterized in：At least one is set to sense winding in intermediate stator, extremely
A few Exciting Windings for Transverse Differential Protection, two kinds of windings are belonging respectively to different " logic motors ".Sensing winding receives the scanning of rotating excitation field, generates exchange
Electric current.Exciting Windings for Transverse Differential Protection forms the steering identical rotating excitation field with input shaft under the excitation of exciting current.
7. the electromagnetic speed variator according to claim 1-6, its way of realization for inputting rotor example has：The magnetic field for inputting rotor can be by permanent magnet
Produce, can also be produced by current excitation Exciting Windings for Transverse Differential Protection, the electromagnetic speed variator of two kinds of way of realization compositions is within the protection domain of this patent.
8. the electromagnetic speed variator according to claim 1-6, it is not necessary to which the sensing winding of " the logic motor " of induced-current output can use three-phase
The squirrel-cage metal structure of asynchronous motor cage rotor is replaced, protection domain of the electromagnetic speed variator realized using such a form in this patent
Within.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021415.6A CN106961207A (en) | 2016-01-12 | 2016-01-12 | Electromagnetic speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021415.6A CN106961207A (en) | 2016-01-12 | 2016-01-12 | Electromagnetic speed variator |
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| Publication Number | Publication Date |
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| CN106961207A true CN106961207A (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610021415.6A Pending CN106961207A (en) | 2016-01-12 | 2016-01-12 | Electromagnetic speed variator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116436254A (en) * | 2023-06-13 | 2023-07-14 | 成都理工大学 | Multistage torque amplification self-reduction motor based on composite excitation structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845305Y (en) * | 2005-03-03 | 2006-12-06 | 广州汽车工业集团有限公司 | Electromagnetic coupling stepless speed gear |
| CN101090221A (en) * | 2006-06-14 | 2007-12-19 | 中国汽车技术研究中心 | Brushless double-rotor machine |
| CN201323515Y (en) * | 2008-12-09 | 2009-10-07 | 华中科技大学 | A radial magnetic-field brushless doubly-fed double-mechanical-port motor |
| CN106374701A (en) * | 2016-09-12 | 2017-02-01 | 江苏大学 | Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array |
-
2016
- 2016-01-12 CN CN201610021415.6A patent/CN106961207A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845305Y (en) * | 2005-03-03 | 2006-12-06 | 广州汽车工业集团有限公司 | Electromagnetic coupling stepless speed gear |
| CN101090221A (en) * | 2006-06-14 | 2007-12-19 | 中国汽车技术研究中心 | Brushless double-rotor machine |
| CN201323515Y (en) * | 2008-12-09 | 2009-10-07 | 华中科技大学 | A radial magnetic-field brushless doubly-fed double-mechanical-port motor |
| CN106374701A (en) * | 2016-09-12 | 2017-02-01 | 江苏大学 | Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116436254A (en) * | 2023-06-13 | 2023-07-14 | 成都理工大学 | Multistage torque amplification self-reduction motor based on composite excitation structure |
| CN116436254B (en) * | 2023-06-13 | 2023-09-12 | 成都理工大学 | Multistage torque amplification self-reduction motor based on composite excitation structure |
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Application publication date: 20170718 |