CN109186334B - Electromagnetic coil emitter with repeatedly used armature and emitting method - Google Patents
Electromagnetic coil emitter with repeatedly used armature and emitting method Download PDFInfo
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- CN109186334B CN109186334B CN201811050799.XA CN201811050799A CN109186334B CN 109186334 B CN109186334 B CN 109186334B CN 201811050799 A CN201811050799 A CN 201811050799A CN 109186334 B CN109186334 B CN 109186334B
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- armature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B6/00—Electromagnetic launchers ; Plasma-actuated launchers
- F41B6/003—Electromagnetic launchers ; Plasma-actuated launchers using at least one driving coil for accelerating the projectile, e.g. an annular coil
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Abstract
The invention relates to a pulse power technology, in particular to an electromagnetic coil transmitter with an armature reused and a transmitting method. The launching method comprises an initial stage, wherein an armature and a load are connected through a connector; electrifying the coil, enabling the armature to be acted by electric force after inducing current, pushing the load to move in the launching tube, disconnecting the connector when the armature reaches the maximum speed, separating the armature from the load, enabling the load to fly out of the launching tube at the maximum speed, and enabling the armature to start to decelerate under the action of the dragging force of the armature; if the armature speed is a positive value, the armature automatically falls to the tail part after colliding with the head reducer, and the recovery of the armature is realized; if the armature reaches the reverse speed, the armature collides with the tail reducer and stops; the recovery of the armature is also realized; then the load is filled again for the next emission. The method can realize the recovery and the reuse of the armature.
Description
Technical Field
The invention belongs to the technical field of pulse power, and particularly relates to an electromagnetic coil emitter with an armature repeatedly used and an emitting method.
Background
The electromagnetic coil emitter is an accelerator composed of one or more coils, each stage of coil is fed by pulse capacitor, and each stage of coil is ignited according to time or armature position, so that induced current and electromagnetic force are generated in the conductor armature, and the armature pushes the load to a specified speed. The electromagnetic coil emitter needs to adopt an armature to push load, and at present, there are two main ways: one is that the armature and the load are integrated, the armature is launched with the load each time, the load exit velocity is less than the peak velocity due to the armature drag effect, and the payload exiting is reduced, resulting in reduced actual efficiency and reduced cost-effectiveness ratio. The other is that the armature is separated from the load, the armature decelerates after reaching the highest speed due to the dragging action of the armature, the armature is ejected out of the bore at a slightly lower speed after the load exits at the highest speed, and the load launching efficiency is higher at the moment. However, if the armature is shot out of the bore, the armature may damage the own equipment due to a certain velocity, and after the shot, the next shot needs to be reloaded, which causes waste.
Disclosure of Invention
The invention aims to provide an electromagnetic coil emitter capable of realizing automatic recovery of an armature, so that the armature can be repeatedly used, and the efficiency-cost ratio is improved.
In order to achieve the purpose, the invention adopts the technical scheme that: an armature-reusable electromagnetic coil transmitter includes a multi-stage coil, an armature, a load, a connector, a transmitting cylinder, an adapter, a head reducer, a tail reducer, and a drive circuit; the multi-stage coils are sequentially arranged and fixed on the launching tube through encapsulation, and the distance between the last stage coil and the head of the launching tube is greater than the length of the two stages of coils; the armature is positioned in the middle of the transmitting tube, and the initial position of the armature is positioned in the middle of the first-stage coil; the head reducer and the tail reducer are respectively arranged at the head and the tail of the launching tube, and the tail of the armature is placed on the tail reducer; the armature and the load are connected through a connector, and the adapter is loaded on the outer side of the load to enable the load to be coaxial with the armature and the launching tube; the coils of each stage are connected with a driving circuit.
In the above-described armature reuse electromagnetic coil transmitter, the armature is an aluminum cylinder, a copper cylinder, or a solenoid armature.
In the armature-reusable electromagnetic coil transmitter described above, the connectors are automatically engaged using a form-fit interface, or controllably engaged and disengaged using mechanical or electrical means.
In the above-described electromagnetic coil transmitter in which the armature is repeatedly used, the transmitting cylinder is made of a high-strength insulating material.
In the above-described electromagnetic coil transmitter with an armature repeatedly used, the drive circuit includes a pulse capacitor, a closed switch, a freewheel diode, and a freewheel resistor; the connection mode comprises that a freewheeling resistor is connected with a freewheeling diode in series, then is connected with a pulse capacitor in parallel and then is connected with a switch and a coil in series; or the follow current resistor is connected with the follow current diode in series, then is connected with the coil in parallel and then is connected with the switch and the capacitor in series.
In the above-described electromagnetic coil radiator in which the armature is repeatedly used, the armature mass is 1/5 or less of the load mass, and the diameter of the armature is larger than the diameter of the load.
In the electromagnetic coil transmitter with the repeatedly used armature, the capacities of the head reducer and the tail reducer are configured according to armature mass and final speed to determine armature kinetic energy; the armature outlet velocity is below 20 m/s.
An electromagnetic coil launching method with an armature capable of being reused comprises an initial stage, wherein the armature and a load are connected through a connector; electrifying the coil, enabling the armature to be acted by electric force after inducing current, pushing the load to move in the launching tube, disconnecting the connector when the armature reaches the maximum speed, separating the armature from the load, enabling the load to fly out of the launching tube at the maximum speed, and enabling the armature to start to decelerate under the action of the dragging force of the armature; if the armature speed is a positive value, the armature automatically falls to the tail part after colliding with the head reducer, and the recovery of the armature is realized; if the armature reaches the reverse speed, the armature collides with the tail reducer and stops; the recovery of the armature is also realized; then the load is filled again for the next emission.
The invention has the beneficial effects that: the armature can not be ejected out of the launching tube along with the load in the launching process of the electromagnetic coil launcher, the automatic recovery of the armature is realized, and the armature can be reused. Not only avoiding damaging the existing equipment and wasting, but also improving the emission efficiency.
Drawings
FIG. 1: is a schematic diagram of the structure of an electromagnetic coil emitter according to an embodiment of the invention;
FIG. 2(a) is an equivalent circuit diagram of a first switch connection mode of each stage of coil driving circuit of the electromagnetic coil transmitter according to an embodiment of the present invention;
FIG. 2(b) is an equivalent circuit diagram of a second switch connection mode of each stage of coil driving circuit of the electromagnetic coil transmitter according to an embodiment of the present invention;
FIG. 3: a typical electromagnetic force and velocity waveform profile experienced by an armature is one embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The present embodiment is realized by the following technical solution, as shown in fig. 1, an electromagnetic coil transmitter with an armature reusable, including: the multi-stage coil 1, the launcher 2, the package 3, the armature 4, the load 5, the connector 9, the adapter 6, the head reducer 7, and the tail reducer 8.
The coils 1 are sequentially arranged on the transmitting tube 2 and are packaged by the package 3 so as to realize electric insulation and mechanical reinforcement; the head of the launching tube 2 is longer than the last-stage coil by more than two stages of coils; the armature 4 is positioned in the middle of the launching tube, the initial position of the armature 4 is usually in the middle of the first stage of the coil 1, and the tail part of the armature 4 can be placed on the tail reducer 8; the armature 4 and the load 5 are connected by a connector 9. The adapter 6 is placed outside the load 5 so that the load 5 is coaxial with the launch barrel 2.
Furthermore, the armature 4 is preferably an aluminum tubular armature, and in particular copper tubular or solenoid armatures are also contemplated. The connectors 9 for the armature 4 and the load 5 can be automatically engaged using a form interface, and can be controllably engaged and disengaged using mechanical or electrical means.
Also, the launch barrel 2 is made of a high-strength insulating material.
The coils of the respective stages are mainly driven by pulse capacitors, and as shown in fig. 2(a) and 2(b), are driving circuits for the coils of the respective stages. The drive circuit comprises a pulse capacitor C, a freewheeling diode D, and a freewheeling resistor RDSwitch S, electromagnetic coil mainly uses coil electric group RLAnd the coil inductance L in series. In the discharging loop, the pulse capacitor C is an energy storage element, and the S pair of coils (R) are closed by the closed switchL+ L) discharge; freewheeling diode (D + R)D) And the reverse parallel connection is carried out at the two ends of the pulse capacitor C, so that the reverse charging of the pulse capacitor C is prevented, and the pulse capacitor is protected. As an alternative circuit, the position of the switch S can be selected between the two connection forms shown in fig. 2(a) and fig. 2 (b).
The switches of the power supplies of the respective stages are sequentially ignited as the armature 4 moves, so that the armature 4 is subjected to appropriate electromotive force to accelerate the load 5, and the armature 4 is subjected to a certain drag force at the head of the launch barrel 2, thereby decelerating the armature 4.
Furthermore, the capacities of the head reducer 7 and the tail reducer 8 may be configured to determine the kinetic energy of the armature 4 according to the mass of the armature 4 and the final speed, and it is recommended that the final speed value of the armature 4 is designed to be within 20m/s in order to miniaturize the reducers.
Also, the armature 4 has a bore larger than that of the load 5 so that the armature 4 is intercepted at the head of the launch barrel 2 or the tail of the launch barrel 2 and the load 5 can be ejected out of the launch barrel 2 at the highest speed. In order to make the armature 4 and the load 5 of different calibers coaxial, an adapter 6 is mounted on the load 5.
In order to stop the movement of the armature 4 with a certain speed and to be able to be used repeatedly, the mass and the final speed of the armature 4 are reduced as much as possible in the design, and the mass of the armature 4 is recommended to be controlled below 1/5 of the mass of the load 5, and the final speed is controlled below 20m/s, so that the selection of the models of the head reducer 7 and the tail reducer 8 is facilitated.
According to the working principle of the emitter in the embodiment, each stage of coils 1 is driven by a pulse power supply, so that the armature 4 reaches the maximum speed at the emitting port of the emitting barrel 2, then starts to decelerate or even move reversely until the armature decelerates to a certain speed and collides with the head speed reducer 7 or the tail speed reducer 8, and therefore recovery and reutilization of the armature 4 are achieved. When the armature 4 reaches the maximum speed, the connector 9 is disconnected, the load 5 flies out of the launcher 2 at the maximum speed, the armature 4 is decelerated due to the armature dragging force and collides with the head reducer 7, and finally the armature 4 is recovered, and the armature 4 may be accelerated reversely to have a certain speed and finally collides with the tail reducer 8, and thus the armature 4 is recovered.
The electromagnetic coil launching method for repeatedly using the armature comprises the steps that switches of power supplies of all stages are sequentially ignited along with the movement of the armature 4, so that the armature 4 is subjected to proper electric power to accelerate a load 5, and the armature 4 is subjected to certain dragging force at a launching port of a launching tube 2 to decelerate the armature 4. In the initial stage, the armature 4 and the load 5 are connected by the connector 9; after the coil 1 is electrified, the armature 4 is acted by electric force after inducing current, the load 5 is pushed to move in the launching tube 2, when the armature 4 reaches the maximum speed, the connector 9 is disconnected, the armature 4 is separated from the load 5, the load 5 is launched at the maximum speed, the armature 4 is acted by the armature dragging force and starts to decelerate, according to different designs, the armature 4 can realize rapid deceleration and is even opposite to the original moving direction, speed reducers are arranged at the head and the tail of the launching tube, the low-speed armature 4 stops moving, if the speed of the armature 4 is a positive value, the armature 4 automatically falls to the tail after colliding the head speed reducer 7, or the armature 4 reaches a reverse speed and can collide the tail speed reducer 8 to stop. The load 5 is then added for the next transmission.
As shown in FIG. 3, which is a typical electromagnetic force and velocity waveform diagram of the armature 4, the armature 4 is first propelled by the electromagnetic force in the same direction, and when the armature 4 reaches t of the outlet of the transmitter1After the moment, the armature 4 reaches the peak speed vmaxThe armature 4 begins to experience a reverse electromagnetic force and begins to decelerate and eventually reaches an exit velocity vout。
It should be understood that parts of the specification not set forth in detail are well within the prior art.
Although specific embodiments of the present invention have been described above with reference to the accompanying drawings, it will be appreciated by those skilled in the art that these are merely illustrative and that various changes or modifications may be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is only limited by the appended claims.
Claims (7)
1. An electromagnetic coil emitter with an armature capable of being repeatedly used is characterized by comprising a multi-stage coil, an armature, a load, a connector, an emitting barrel, an adapter, a head reducer, a tail reducer and a driving circuit; the multi-stage coils are sequentially arranged and fixed on the launching tube through encapsulation, and the distance between the last stage coil and the head of the launching tube is greater than the length of the two stages of coils; the armature is positioned in the middle of the transmitting tube, and the initial position of the armature is positioned in the middle of the first-stage coil; the head reducer and the tail reducer are respectively arranged at the head and the tail of the launching tube, and the tail of the armature is placed on the tail reducer; the armature and the load are connected through a connector, and the adapter is loaded on the outer side of the load to enable the load to be coaxial with the armature and the launching tube; the coils of each stage are connected with a driving circuit.
2. The armature reusable electromagnetic coil launcher of claim 1, wherein the armature is an aluminum cylinder, a copper cylinder, or a solenoid armature.
3. The armature reusable electromagnetic coil launcher of claim 1, wherein the connectors are automatically engaged using a form interface, or controllably engaged and disengaged using mechanical or electrical means.
4. The armature reusable electromagnetic coil launcher of claim 1, wherein the launcher tube is selected from high strength insulating materials.
5. The armature reusable electromagnetic coil transmitter as claimed in claim 1, wherein the drive circuit includes a pulse capacitor, a closed switch, a freewheeling diode and a freewheeling resistor; the connection mode comprises that a freewheeling resistor is connected with a freewheeling diode in series, then is connected with a pulse capacitor in parallel and then is connected with a switch and a coil in series; or the follow current resistor is connected with the follow current diode in series, then is connected with the coil in parallel and then is connected with the switch and the capacitor in series.
6. An armature reusable electromagnetic coil launcher according to claim 1, wherein the armature mass is below 1/5 of the load mass, and the armature has a bore size greater than the bore size of the load.
7. A method of launching an armature reusable solenoid launcher according to claim 1 comprising an initial phase wherein the armature and load are connected by a connector; electrifying the coil, enabling the armature to be acted by electric force after inducing current, pushing the load to move in the launching tube, disconnecting the connector when the armature reaches the maximum speed, separating the armature from the load, enabling the load to fly out of the launching tube at the maximum speed, and enabling the armature to start to decelerate under the action of the dragging force of the armature; if the armature speed is a positive value, the armature automatically falls to the tail part after colliding with the head reducer, and the recovery of the armature is realized; if the armature reaches the reverse speed, the armature collides with the tail reducer and stops; the recovery of the armature is also realized; then the load is filled again for the next emission.
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| CN201811050799.XA CN109186334B (en) | 2018-09-10 | 2018-09-10 | Electromagnetic coil emitter with repeatedly used armature and emitting method |
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| CN201811050799.XA CN109186334B (en) | 2018-09-10 | 2018-09-10 | Electromagnetic coil emitter with repeatedly used armature and emitting method |
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| CN109186334B true CN109186334B (en) | 2020-11-03 |
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| CN110311221A (en) * | 2019-06-27 | 2019-10-08 | 江苏科技大学 | A kind of electromagnetic launcher for wireless network signal |
| CN111049348B (en) * | 2019-12-25 | 2022-03-08 | 三峡大学 | Non-permanent-magnet electromagnetic force driven reciprocating power device |
| CN111964524A (en) * | 2020-08-24 | 2020-11-20 | 孙志强 | Multistage induction type electromagnetic transmitter |
| CN112033215B (en) * | 2020-08-31 | 2022-08-02 | 上海大学 | Reluctance electromagnetism sends out export deceleration suppression device |
| CN112504002A (en) * | 2020-10-22 | 2021-03-16 | 浙江工业大学 | Magnetic resistance type electromagnetic gun with controllable shell acceleration distance and control method |
| CN113910008A (en) * | 2021-10-18 | 2022-01-11 | 台州学院 | Multistage accelerating magnetic jet polishing machine |
| CN114010980B (en) * | 2021-10-27 | 2022-11-22 | 陕西如意机械制造有限公司 | Super high-rise multipurpose electromagnetic fire monitor |
| CN117073458A (en) * | 2023-07-12 | 2023-11-17 | 山东科技大学 | Submerged-type distributing device and control method |
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|---|---|---|---|---|
| CN202903008U (en) * | 2012-11-21 | 2013-04-24 | 魏伯卿 | Cyclotron electromagnetic gun |
| JP5730273B2 (en) * | 2012-11-26 | 2015-06-03 | 株式会社日本製鋼所 | Electromagnetic accelerator |
| CN107096203A (en) * | 2017-05-11 | 2017-08-29 | 高帅华 | A kind of electromagnetism service robot |
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2018
- 2018-09-10 CN CN201811050799.XA patent/CN109186334B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202903008U (en) * | 2012-11-21 | 2013-04-24 | 魏伯卿 | Cyclotron electromagnetic gun |
| JP5730273B2 (en) * | 2012-11-26 | 2015-06-03 | 株式会社日本製鋼所 | Electromagnetic accelerator |
| CN107096203A (en) * | 2017-05-11 | 2017-08-29 | 高帅华 | A kind of electromagnetism service robot |
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