CN204984640U - Electromagnetism mutual driving rotation device - Google Patents
Electromagnetism mutual driving rotation device Download PDFInfo
- Publication number
- CN204984640U CN204984640U CN201520065041.9U CN201520065041U CN204984640U CN 204984640 U CN204984640 U CN 204984640U CN 201520065041 U CN201520065041 U CN 201520065041U CN 204984640 U CN204984640 U CN 204984640U
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- Prior art keywords
- low pressure
- pressure compressor
- fan
- electromagnet
- axle
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Abstract
The utility model relates to an electromagnetism mutual driving rotation device has solved among the prior art fan axle and low pressure compressor axle and can not keep the problem of optimum revolution ratio separately. Its technical scheme includes fan axle, fan, low pressure compressor axle, a plurality of permanent magnet, a plurality of electro -magnet and a plurality of diamagnetism piece. The magnetic pole that is equipped with a plurality of permanent magnets and permanent magnet at the cavity inner wall equipartition of low pressure compressor axle is along the radial direction distribution of low pressure compressor axle big footpath section, outer wall at the fan axle is equipped with the insulating part, and the equipartition is equipped with a plurality of electro -magnet on the insulating part, all be equipped with the diamagnetism piece between a plurality of permanent magnets and between a plurality of electro -magnet. The utility model discloses adjust turbofan engine's the low pressure compressor and the rotating ratio of fan, mechanical adjustment mechanism is simple, and makes the engine performance who uses the mutual area of the electromagnetism technique of rotating obviously to improve.
Description
Technical field
The utility model relates to a kind of electromagnetism and is with slewing gear mutually, and particularly a kind of electromagnetism be applied in aeroengine is with slewing gear mutually.
Background technique
Aeroplane engine is confidential now reaches good performance, and the not at the same level of gas compressor should with different rotational speed, can make like this can reach suitable pressure ratio during every one-level of air-flow by gas compressor in aeroengine.For turbofan engine, under existing technical specifications, common way is design double rotor or triple-spool motor, make air-flow with the level of pressure ratio the most suitable by fan, low pressure compressor and high-pressure compressor, and now except the triple-spool turbofan engine of Rolls-Royce company of Britain, Pu Hui company new gear transmission type turbofan engine except, other aeroengines all can not accomplish being separated of turbofan engine fan and low pressure compressor rotating speed.Wherein Pu Hui company gear transmission Duct-Burning Turbofan GTF by increasing a gear reducer between low pressure compressor and fan, completes mating of low pressure compressor and fan speed.The fan pressure ratio reduced needs larger diameter, and the tip speed of gear transmission fan reduces to reduce noise; Rolls-Royce company's triple-spool design turbofan engine.The object of triple-spool design solves the contradiction on gas compressor and rotation speed of the fan.So-called triple-spool turn increases one-level fan propeller exactly in birotary engine, and like this, fan, high-pressure compressor and low pressure compressor all have a style of one's own, each have their own rotating speed.Relatively-stationary mechanical coupling is not had between three rotors, so, just do not pind down between fan and low pressure rotor, but can the rotating speed that is applicable to the most of each leisure operate, Designers just can relatively freely designed engines rotation speed of the fan, fan diameter and by-pass ratio, and the rotating speed of low pressure compressor also can not be subject to keeping in check of fan, the efficiency of calming the anger after the rotating speed raising of low pressure compressor improves, progression reduces, weight saving, and the length of motor can reduce again further.But compared with birotary engine, three rotor configuration is more complicated.And find that present stage does not also find electromagnetism mutually with the similar research of rotating technique in aeroengine and application through inspection information.
Summary of the invention
The technical problem that the utility model solves is: design a kind of electromagnetism and be with slewing gear mutually, make just not pind down between fan and low pressure rotor, the rotating speed that each leisure is applicable to the most operates, allow designer's relatively freely designed engines rotation speed of the fan, fan diameter and by-pass ratio, the rotating speed of low pressure compressor also can not be subject to keeping in check of fan simultaneously, the efficiency of calming the anger after the rotating speed raising of low pressure compressor improves, progression reduces, weight saving, the length of motor can reduce again further, also the weight because adopting the generation of more complicated three rotor configuration extra is avoided to increase.
The technical solution of the utility model is: comprise fan shaft 2, fan 5, low pressure compressor axle 1, some permanent magnets 3, some electromagnet 4 and some diamagnetism parts 6; Low pressure compressor axle 1 is made up of the Cylindrical object of two different diameters of axle, and large footpath section is hollow cavity; One end of fan shaft 2 connects fan 5, and the other end is placed in the cavity body of large footpath section, and is placed in the bottom contact of Wei Yu great footpath, one end section hollow cavity of large footpath section cavity body; Some permanent magnets 3, some electromagnet 4 are strip, the cavity inner wall of low pressure compressor axle 1 is laid with some permanent magnets 3, and being provided with diamagnetism part 6 between some permanent magnets 3, the magnetic pole of permanent magnet 3 is along the radial direction distribution of low pressure compressor axle 1 large footpath section; The outer wall of fan shaft 2 is laid with some electromagnet 4, the outer wall of fan shaft (2) is provided with insulating part, insulating part is laid with some electromagnet (4); And be provided with some diamagnetism parts 6 between some electromagnet 4; Diamagnetism part 6 and the permanent magnet 3 of electromagnet 4 are positioned at the in the radial direction same of low pressure compressor axle 1 large footpath section; Some permanent magnets 3 all do not contact with the diamagnetism part 6 between some electromagnet 4 and some electromagnet 4; Some electromagnet 4 all do not contact with the diamagnetism part 6 between some permanent magnets 3 and some permanent magnets 3.
Further technological scheme of the present utility model is: described fan shaft 2 and fan 5 are fixed by pin key and are connected.
Further technological scheme of the present utility model is: described some permanent magnets 3 are bonded on the hollow cavity inwall of low pressure compressor axle 1.
Further technological scheme of the present utility model is: some electromagnet 4 are bonded on the insulating part of fan shaft 2 outer wall.
Further technological scheme of the present utility model is: described diamagnetism part 6 is the strip shape body adopting RESEARCH OF PYROCARBON material to make.
Further technological scheme of the present utility model is: described diamagnetism part 6 size and magnet measure-alike, and adopt bonding way be connected with the insulating part of fan shaft 2 outer wall with the hollow cavity inwall of low pressure compressor axle 1.
Technique effect of the present utility model is: design a kind of electromagnetism and be with slewing gear mutually, regulates the low of turbofan engine
The rotating ratio of pressure gas compressor and fan, and corresponding mechanical adjusting mechanism is simple, compares application triple-spool
Or by the motor of gear reducer, the weight of the motor of application electromagnetism mutually with rotating technique can
Obviously to alleviate.
Between the low pressure compressor of working principle: the utility model is applied on the reducing gear of turbofan engine by electromagnetic induction principle, particularly turbofan engine and fan.This structure, for regulating the rotating ratio between low pressure compressor and fan, makes low pressure compressor and rotation speed of the fan coupling, is not just pind down between fan and low pressure rotor, but the rotating speed that is applicable to the most of each leisure operates, and is called as electromagnetism and is with slewing gear mutually.Electromagnet is connected with by the electric current produced in engine turbine motor, drives permanent magnet to rotate during the running of low pressure compressor axle, the electric current in the electromagnetic wire cutting electromagnet of permanent magnet forms abampere (aA) power.Abampere (aA) power is rotated around fan shaft and is formed running torque, and then drives fan turns.Regulate the size of abampere (aA) power between permanent magnet and electromagnet by the size of electric current in regulating magnet, and then the rotating speed of fan is regulated.When engine operation condition change cause inlet air flow to change time, by changing the size supplying electric current in electromagnet, regulate the running torque between permanent magnet and electromagnet, control low pressure compressor and fan rotate under respective optimum speed, under making motor be in best operating conditions.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 be in the utility model magnet and low pressure compressor axle and fan shaft distribute plan view
Fig. 3 is the sectional view that the utility model magnet and low pressure compressor axle and fan shaft distribute
Fig. 4 is the side view that the utility model magnet and low pressure compressor axle and fan shaft distribute
Description of reference numerals: 1-low pressure compressor axle; 2-fan shaft; 3-permanent magnet; 4-electromagnet; 5-fan; 6-diamagnetism part.
Embodiment
Below in conjunction with concrete embodiment, technical solutions of the utility model are further illustrated.
1. see Fig. 1-Fig. 4, the utility model devises a kind of electromagnetism and is with slewing gear mutually, comprises fan shaft 2, fan 5; It is characterized in that, also comprise low pressure compressor axle 1, some permanent magnets 3, some electromagnet 4 and some diamagnetism parts 6; Low pressure compressor axle 1 is made up of the Cylindrical object of two different diameters of axle, and large footpath section is hollow cavity; One end of fan shaft 2 is fixed by pin key and connects fan 5, and the other end is placed in the cavity body of large footpath section, and is placed in the bottom contact of Wei Yu great footpath, one end section hollow cavity of large footpath section cavity body; Some permanent magnets 3, some electromagnet 4 are strip.Uniformly on the cavity inner wall of low pressure compressor axle 1 be bonded with some permanent magnets 3, and be provided with diamagnetism part 6 between some permanent magnets 3, the magnetic pole of permanent magnet 3 is along the radial direction distribution of low pressure compressor axle 1 large footpath section; The outer wall of fan shaft (2) is provided with insulating part, insulating part is laid with some electromagnet (4); Some diamagnetism parts 6 are provided with between some electromagnet 4, the strip shape body that described diamagnetism part 6 is made for RESEARCH OF PYROCARBON material, in this example, diamagnetism part 6 size and magnetic stripe measure-alike, and adopt bonding way be connected with the hollow cavity inwall of low pressure compressor axle 1.Diamagnetism part 6 and the permanent magnet 3 of electromagnet 4 are positioned at the in the radial direction same of low pressure compressor axle 1 large footpath section; Permanent magnet 3 does not all contact with the diamagnetism part 6 between some electromagnet 4 and some electromagnet 4; Electromagnet 4 does not all contact with the diamagnetism part 6 between some permanent magnets 3 and some permanent magnets 3.
Lift two examples by the distribution of polarity below, explanation is further explained to the working procedure of this device
When low pressure compressor axle 1 rotates clockwise, one end bonding with low pressure compressor axle 1 inwall on permanent magnet 3 is N pole, and the other end is S pole.Current direction on electromagnet 4 is flowed to low pressure compressor axle 1 end by fan 5 end.When low pressure compressor axle 1 rotates counterclockwise, one end bonding with low pressure compressor axle 1 inwall on permanent magnet 3 is N pole, and the other end is S pole.Current direction on electromagnet 4 is flowed to fan 5 end by low pressure compressor axle 1 end.When low pressure compressor axle 1 rotates clockwise, one end bonding with low pressure compressor axle 1 inwall on permanent magnet 3 is S pole, and the other end is N pole.Current direction on electromagnet 4 is flowed to fan 5 end by low pressure compressor axle 1 end.When low pressure compressor axle 1 rotates counterclockwise, one end bonding with low pressure compressor axle 1 inwall on permanent magnet 3 is S pole, and the other end is N pole.Current direction on electromagnet 4 is flowed to low pressure compressor axle 1 end by fan 5 end.The process that low pressure compressor axle 1 drives fan shaft 2 to rotate is: electromagnet 4 is connected with by the electric current produced in engine turbine motor, drive permanent magnet 3 to rotate when low pressure compressor axle 1 operates, the electric current in the electromagnetic wire cutting electromagnet 4 of permanent magnet 3 forms abampere (aA) power.Abampere (aA) power is rotated around fan shaft 2 and is formed running torque, and then drives fan shaft 2 to rotate.The process of the rotating ratio of both changes is: regulate the size of abampere (aA) power between permanent magnet 3 and electromagnet 4 by the size of electric current in regulating magnet 4, and then regulate the rotating speed of fan shaft 2.
Claims (6)
1. electromagnetism is with a slewing gear mutually, comprises fan shaft (2), fan (5); It is characterized in that, also comprise low pressure compressor axle (1), some permanent magnets (3), some electromagnet (4) and some diamagnetism parts (6); Low pressure compressor axle (1) is made up of the Cylindrical object of two different diameters of axle, and large footpath section is hollow cavity; One end of fan shaft (2) connects fan (5), and the other end is placed in the cavity body of large footpath section, and is placed in the bottom contact of Wei Yu great footpath, one end section hollow cavity of large footpath section cavity body; Some permanent magnets (3), some electromagnet (4) are strip, the cavity inner wall of low pressure compressor axle (1) is laid with some permanent magnets (3), and being provided with diamagnetism part (6) between some permanent magnets (3), the magnetic pole of permanent magnet (3) is along the radial direction distribution of low pressure compressor axle (1) large footpath section; The outer wall of fan shaft (2) is provided with insulating part, insulating part is laid with some electromagnet (4); Some diamagnetism parts (6) are provided with between some electromagnet (4); Diamagnetism part (6) between electromagnet (4) and permanent magnet (3) are positioned at the in the radial direction same of low pressure compressor axle (1) large footpath section; Some permanent magnets (3) all do not contact with the diamagnetism part (6) between some electromagnet (4) and some electromagnet (4); Some electromagnet (4) all do not contact with the diamagnetism part (6) between some permanent magnets (3) and some permanent magnets (3).
2. a kind of electromagnetism as claimed in claim 1 is with slewing gear mutually, it is characterized in that, described fan shaft (2) and fan (5) are fixed by pin key and are connected.
3. a kind of electromagnetism as claimed in claim 1 is with slewing gear mutually, it is characterized in that, described some permanent magnets (3) are bonded on the hollow cavity inwall of low pressure compressor axle (1).
4. a kind of electromagnetism as claimed in claim 1 is with slewing gear mutually, it is characterized in that, some electromagnet (4) are bonded on the insulating part of fan shaft (2) outer wall.
5. a kind of electromagnetism as claimed in claim 1 is with slewing gear mutually, it is characterized in that, described diamagnetism part (6) is the strip shape body adopting RESEARCH OF PYROCARBON material to make.
6. a kind of electromagnetism as described in claim 1 or 2 or 3 or 4 or 5 is with slewing gear mutually, it is characterized in that, described diamagnetism part (6) size is identical with magnet size, and adopts bonding way to be connected with the insulating part of fan shaft (2) outer wall with the hollow cavity inwall of low pressure compressor axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065041.9U CN204984640U (en) | 2015-01-29 | 2015-01-29 | Electromagnetism mutual driving rotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065041.9U CN204984640U (en) | 2015-01-29 | 2015-01-29 | Electromagnetism mutual driving rotation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984640U true CN204984640U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065041.9U Expired - Fee Related CN204984640U (en) | 2015-01-29 | 2015-01-29 | Electromagnetism mutual driving rotation device |
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| Country | Link |
|---|---|
| CN (1) | CN204984640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632464A (en) * | 2015-01-29 | 2015-05-20 | 西北工业大学 | Electromagnetism mutual driving rotation device |
-
2015
- 2015-01-29 CN CN201520065041.9U patent/CN204984640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632464A (en) * | 2015-01-29 | 2015-05-20 | 西北工业大学 | Electromagnetism mutual driving rotation device |
| CN104632464B (en) * | 2015-01-29 | 2017-03-08 | 西北工业大学 | A kind of electromagnetism mutually carries tumbler |
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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: 20160120 Termination date: 20160129 |
|
| EXPY | Termination of patent right or utility model |