CN202109822U - Rotary multipole moment-field electromagnetic thruster - Google Patents
Rotary multipole moment-field electromagnetic thruster Download PDFInfo
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- CN202109822U CN202109822U CN2011200884979U CN201120088497U CN202109822U CN 202109822 U CN202109822 U CN 202109822U CN 2011200884979 U CN2011200884979 U CN 2011200884979U CN 201120088497 U CN201120088497 U CN 201120088497U CN 202109822 U CN202109822 U CN 202109822U
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Abstract
The utility model discloses a rotary multipole moment-field electromagnetic thruster, which mainly includes magnetic field coils, a projectile armature, a power supply circuit, a projectile position detection sensor and a synchronous accuracy control chip, wherein the magnetic field coils are multipole-moment coil groups; the multipole-moment coil groups arranged in a graded manner extend in the moving direction of the projectile armature; an aviation guide pipe is arranged between the multipole-moment coil groups and the prokectile armature; and coils in the multipole-moment coil groups are connected with the power supply circuit to obtain the discharge impulse current. The rotary multipole moment-field electromagnetic thruster provided by the utility model can generate axial electromagnetic accelerated pushing force with stronger action on the projectile armature, has the advantages of big electromagnetic accelerating force, great emitted projectile mass, high outlet velocity, balanced rotating motion, stable suspension, high efficiency and environmental protection, can be widely applied to the fields such as engine propulsion, rocket boosting, electromagnetic forming and rotary tunneling machinery, and is particularly recommended to be used in the vacuum duct transportation technique.
Description
Technical field
The utility model belongs to the ELECTROMAGNETIC LAUNCH TECHNOLOGY field, and it is particularly related to the Electromagnetic Propulsion based on rotation multipole moments magnetic field configuration.
Background technology
Electromagnetic Launching comprises electromagnetic propulsion and electromagnetic launch, is meant to utilize electromagnetic force to promote the device that projectile reaches certain speed, owing to be as military weapon originally, therefore is called magnetic artillery again.Conventional electromagnetic propeller can be divided into two big types: the one, and rail type (guide rail big gun), the 2nd, coil form (coilgun, reclosing big gun).
Current, there are some principle defectives in conventional electromagnetic propeller or face certain technical difficulty.The rail type electromagnetic propeller is simple in structure, and it is that the high-intensity magnetic field that utilizes two parallel big electric current guide rails to produce quickens to be positioned at the conduction armature between guide rail.Owing under megampere level electric current, propel, parts such as armature, guide rail will bear great hot-fluid in moment and impact, and are prone to cause serious ablation and surfacial spalling; Sliding-contact place between guide rail-armature also can produce fusion, and the guide rail exit is prone to produce phenomenons such as electric arc, and these all seriously restrict the raising of life-span, projectile muzzle velocity and system's emission effciency of rail type electromagnetic propulsion.Coaxial coil type accelerator is an electromagnetic propulsion form the earliest, and it is that the capable ripple of magnetic that utilizes a series of long straight solenoid coils to produce quickens projectile coil (or inductive loop armature) in proper order and realizes quickening.Coaxial straight solenoid coil form electromagnetic propeller mainly shows as radial effect to the electromagnetic force component of projectile armature, and radial stress causes the motion of projectile armature to produce fluctuation much larger than axial acceleration; May collide with the flight pipe inner wall; Therefore the electromagnetic force utilization rate of system's propelling is not high, and the ohmic loss of adding the projectile armature is bigger, and the power consumption of multistage drive coil array and energy storage are also bigger; These factors cause propulsive efficiency lower; Propulsive performance is difficult to improve, and multistage propelling precise synchronization control system complex, causes the maloperation of drive coil loading current etc. easily.
Summary of the invention
Shortcoming in view of prior art; The purpose of the utility model is face the future ultrahigh speed, big quality and high efficiency launch requirements; Solve conventional coil form electromagnetic propeller and axially quicken used electromagnetic force component smaller defect; Electromagnetic propulsion and emission are carried out in the rotation multipole moments field that proposes the applying multilevel driving, and design rotation multipole moments field electromagnetic propulsion pattern, power circuit and control mode ensure the ground accelerated motion of projectile armature spin stabilization.
The purpose of the utility model realizes through following means:
Rotation multipole moments field electromagnetic propeller; Mainly constitute by field coil, projectile armature, power circuit, projectile position-detection sensor and synchronously accurate control chip; Said field coil adopts the multipole moments coil groups, and the multipole moments coil groups that classification is provided with is extended along the direction of motion of projectile armature; Be provided with the flight conduit between multipole moments coil groups and projectile armature; Each coil is connected with power circuit to obtain discharge pulse current in the multipole moments coil groups.
Adopt the scheme of the utility model, single-stage multipole moments field coil configuration produces the radial magnetic field that points to the center of circle, with the interactional electromagnetic force fundamental component of toroidal current be axial acceleration.In the rotation multipole moments field coil of multistage driving; The multipole moments magnetic field on plane is longitudinally expanded and is reversed; Multistage drive coil produces the capable ripple of magnetic that a kind of rotation is advanced under the effect of time sequential pulse electric current, the capable ripple of the magnetic of this variation eddy current of on the projectile armature, inducting, and eddy current and multipole moments magnetic field interaction produce electromagnetic force; The projectile armature there are axial acceleration, hoop torque and the laterally effect of restoring force, make that the projectile armature can the accelerated motion of spin stabilization ground.
The utility model rotation multipole moments field electromagnetic propeller can produce the axial magnetic of pretending usefulness to the projectile armature and quicken thrust; Have that the electromagnetism acceleration is big, emission projectile quality is big, muzzle velocity is high, the balance that rotatablely moves, suspending stabilized, and the advantage of high-efficiency environment friendly.The utility model can be widely used in fields such as locomotive propelling, rocket assist, electromagnetic forming and rotation road heading machinery, and ad hoc proposal is used in the vacuum pipe transportation technology.
Description of drawings
Fig. 1 is the example structure sketch map of the utility model rotation multipole moments field electromagnetic propeller.
Fig. 2 is the overall system diagram of Fig. 1 embodiment.
Fig. 3 is the principle schematic section of the utility model single-stage multipole moments field electromagnetic propeller.
Fig. 4 is the electromagnetic force constructed profile of the utility model rotation multipole moments field electromagnetic propeller.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
When the multipole moments coil groups is extended along the direction of motion of projectile armature; Multipole moments coil between two adjacent groups multipole moments coil groups can be directly overlapping; The windup-degree of multistage drive coil is zero; Be all dischargings side by side of each grade drive coil, the multipole moments field of this kind symmetry does not have rotation effect to the projectile armature, and the lateral stability performance of projectile armature satisfies.But what more embody the utility model advantage is to adopt the structure of angle distribution in the shape of a spiral, and promptly the multipole moments coil groups is done and twisted arrangement when the direction of motion of projectile armature is extended, and the multipole moments coil between two adjacent groups multipole moments coil groups angle in the shape of a spiral distributes.
Can see the structures of one the three grades rotation octupole moment field electromagnetic propeller embodiment of the utility model in conjunction with Fig. 1 and Fig. 2, this moment, helical angle was 15 degree.
The utility model can confirm that the muzzle velocity design of projectile is provided with emission progression according to the requirement of launching condition, selects the number of pole-pairs of multipole moments coil by the shape of projectile, is set the windup-degree of grade coil by the rotary speed of projectile.The structure of three grades of rotation octupole moment field electromagnetic propeller embodiment can be used as separates an example of the utility model structure: this impeller system comprises three grades of octupole moment field drive coil groups 1, projectile armature 2, flight conduit 3, power circuit 4, projectile position-detection sensor 5, and synchronously accurate control chip 6 etc.Wherein, power circuit 4 comprises impulse capacitor, diode, power switch and drive circuit thereof, mainly is for the multipole moments drive coil provides pulse current, also can be provided by other power mode such as frequency conversion generators.Electric current in each grade series connection multipole moments coil is obtained its discharge and is carried out afterflow by diode is parallelly connected with drive coil by independent impulse capacitor.The coil of forming multipole moments field coil group is copper or superconducting coil, adopts copper coil in this example; Projectile armature 2 can be good conductor aluminium sleeve or superconduction block material, is made into polyhedral structure by the good conductor aluminium block in this example, the front end fluting, and the rear end is an entity; Flight conduit 3 is made by rigid insulation tubing, can adopt glass tube or insulation plastic cement pipe in this example; Projectile position-detection sensor 5 is a laser range finder, in order to detect the movement position of projectile armature, analyzes its movement velocity; The power switch driver circuit of projectile position-detection sensor 5 and power circuit 4 is connected with synchronously accurate control chip 6 respectively; Accurately control chip 6 receives in real time and handles projectile motion position Detection information synchronously, in order to the power switch conducting of control impuls capacitor circuit.
The course of work of three grades of rotation octupole moment field electromagnetic propellers is following: when initial, the paired pulses capacitor charges in advance, reaches the operating voltage of setting; The projectile armature gets into first order octupole moment field drive coil from inactive state or with certain initial velocity, and this initial velocity can be launched by spring and quicken to obtain; When projectile armature movement during to the precalculated position of first order drive coil; Detect signal by projectile armature position sensor; The Synchronization Control chip obtains this signal and control triggers the power switch conducting; The impulse capacitor of the corresponding first order discharges to series connection multipole moments coil; Each polar moment field coil produces transient magnetic field and produces eddy current in the projectile side, the electromagnetic force effect that the radial magnetic field in the sensing center of circle that the multipole moments field coil produces produces the orientation movements direction to projectile hoop eddy current, and this electromagnetic force is mainly used in and drives the accelerated motion of projectile armature.When the projectile armature moves to the two or three grade of drive coil successively; Detect projectile by laser sensor equally and arrive the precalculated position; The power switch sequential turn-on of synchronous logic chip controls pulse power supply circuit; Multistage drive coil produces the capable ripple of multipole moments field magnetic that rotation is vertically advanced, and the capable ripple induction of this magnetic projectile armature receives the electromagnetic force effect, can guarantee that the projectile armature does the accelerated motion of spin stabilization in the flight conduit.
In conjunction with Fig. 3 and Fig. 4 clearer understanding can be arranged to the operation principle of the utility model; The principle of single-stage multipole moments field electromagnetic propeller is shown in accompanying drawing 3; This emission mode is based on line inductance electromotor principle and reclosing molded lines circle lift-off technology; When pulse current was loaded into the multipole moments field coil of series connection, the multipole moments field coil can produce the radial magnetic field that points to the center of circle
B , because the induction effect of transient magnetic field, induction produces reverse eddy current to the independent small coil in the multipole moments coil groups in the projectile side
J , a plurality of small coil actings in conjunction produce the toroidal current effect on the projectile armature.Like this, radial magnetic field that the multipole moments coil produces and the hoop eddy current effect on the projectile armature produce Ampere force, and the fundamental component of this electromagnetic force shows as axial acceleration to the projectile armature, and radial compression force is then less.Compare the axial acceleration smaller defect of conventional straight solenoid type electromagnetic propeller, the utility model has remarkable advantages.Multipole moments field coil type electromagnetic propeller can strengthen the utilization of electromagnetic force, improves the emission effciency of system.
Multistage emission for rotation multipole moments field electromagnetic propeller; During near the projectile armature arrives drive coils at different levels successively precalculated position; The logical pulse current that carries of order in drive coils at different levels; Because to the longitudinal extension and the twisting action of polar moment coil, multistage polar moment coil can produce the capable ripple of magnetic that rotation is advanced in the space.The capable ripple of this magnetic induces axial eddy on the projectile armature
J z With the hoop eddy current
J φ , with the multipole moments radial magnetic field
B Interact, make the projectile armature receive axial acceleration, hoop torque and transverse row repulsion (restoring force), the eddy current of projectile armature is illustrated shown in accompanying drawing 4 with electromagnetic force: the axial acceleration that projectile armature 2 is suffered
F z , the angle twisting resistance
F φ , and the hoop torque
M z Axially acceleration is vertically being quickened the projectile armature movement; The hoop torque guarantees that the projectile armature rotates; Transverse row repulsion is the suspending stabilized restoring force that provides of projectile armature, and the electromagnetic force effect of these three directions has ensured the high speed property and the stability of projectile armature movement.This also is another big outstanding advantage place of the utility model, and can expand to the application in many-sided field.
Compare with the defective that the used electromagnetic force of the axial acceleration of conventional straight solenoid molded lines circle electromagnetic propeller is given short measure; The outstanding advantage of the utility model is: rotation multipole moments field electromagnetic propeller has been used the multipole moments magnetic field configuration and has been carried out Electromagnetic Launching, can produce the axial magnetic of pretending usefulness to the projectile armature and quicken thrust; The rotation multipole moments field coil of multistage driving can produce the capable ripple of multipole moments field magnetic that a kind of rotation is advanced, and can produce axial acceleration, hoop torque to the projectile armature, and the laterally effect of restoring force; This propeller has that the electromagnetism acceleration is big, emission projectile quality is big, muzzle velocity is high, the balance that rotatablely moves, suspending stabilized, and the advantage of high-efficiency environment friendly.The rotation multipole moments field electromagnetic propulsion pattern of the utility model can be widely used in locomotive propelling, rocket assist, electromagnetic forming, and field such as rotation road heading machinery etc., and ad hoc proposal is used in the vacuum pipe transportation technology with the utility model.
More than show and described principal character, utility model essence, basic principle, the technological merit of the utility model; And the specific embodiment; Those of skill in the art recognize that embodiment described here is in order to help the principle of reader understanding's the utility model, under the prerequisite that does not break away from the utility model thought and scope; The utility model also can also have other various changes and modifications, should be understood that in the protection domain of the utility model.The utility model requires protection domain to be defined by the equivalent of appending claims and utility model thought.
Claims (4)
1. rotate multipole moments field electromagnetic propeller; Mainly constitute by field coil, projectile armature, power circuit, projectile position-detection sensor and synchronously accurate control chip; It is characterized in that; Said field coil adopts the multipole moments coil groups, and the multipole moments coil groups that classification is provided with is extended along the direction of motion of projectile armature; Be provided with the flight conduit between multipole moments coil groups and projectile armature; Each coil is connected with power circuit to obtain discharge pulse current in the multipole moments coil groups.
2. the rotation multipole moments field electromagnetic propeller according to claim 1 is characterized in that, when said multipole moments coil groups was extended along the direction of motion of projectile armature, the multipole moments coil between two adjacent groups multipole moments coil groups angle in the shape of a spiral distributed.
3. the rotation multipole moments field electromagnetic propeller according to claim 1 is characterized in that: the power circuit that multipole moments field drive coil is discharged adopts impulse capacitor; And carry out afterflow by diode is parallelly connected with drive coil.
4. the rotation multipole moments field electromagnetic propeller according to claim 1 is characterized in that said flight conduit is made by rigid insulation tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200884979U CN202109822U (en) | 2011-03-30 | 2011-03-30 | Rotary multipole moment-field electromagnetic thruster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200884979U CN202109822U (en) | 2011-03-30 | 2011-03-30 | Rotary multipole moment-field electromagnetic thruster |
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| CN202109822U true CN202109822U (en) | 2012-01-11 |
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| CN2011200884979U Expired - Fee Related CN202109822U (en) | 2011-03-30 | 2011-03-30 | Rotary multipole moment-field electromagnetic thruster |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197778A (en) * | 2014-08-26 | 2014-12-10 | 西南交通大学 | Arc-shaped multipole-moment electromagnetic emitter |
| WO2019070772A1 (en) * | 2017-10-02 | 2019-04-11 | Rayton Solar Inc. | Systems and processes for producing relatively uniform transverse irradiation fields of charged-particle beams |
-
2011
- 2011-03-30 CN CN2011200884979U patent/CN202109822U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197778A (en) * | 2014-08-26 | 2014-12-10 | 西南交通大学 | Arc-shaped multipole-moment electromagnetic emitter |
| WO2019070772A1 (en) * | 2017-10-02 | 2019-04-11 | Rayton Solar Inc. | Systems and processes for producing relatively uniform transverse irradiation fields of charged-particle beams |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140330 |