A loading armature for electromagnetically launching a non-metallic projectile and an electromagnetic launching device

Abstract

The application discloses a loading armature for electromagnetically launching a nonmetallic projectile and an electromagnetic launching device. The loading armature comprises a metal shell, and has an open loading chamber for loading the nonmetallic projectile. A through hole is formed in the closed end of the metal shell and is in communication with the loading chamber. The loading armature can be used for electromagnetically launching different types of nonmetallic projectiles. During the process of loading the nonmetallic projectile into the loading chamber through the open end of the metal shell, the through hole keeps the loading chamber in communication with the external environment, so that the loading chamber is not a closed chamber due to the nonmetallic projectile, and the internal air pressure of the closed chamber does not affect the loading of the nonmetallic projectile.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic launch technology, specifically to a loading armature for electromagnetically launching non-metallic projectiles and an electromagnetic launch device. Background Technology

[0002] Non-metallic projectiles made of non-metallic materials (such as plastics, rubber, and liquids) are a common type of non-lethal ammunition, also known as riot control ammunition. They are used to disperse targets during riots, incapacitating them; or by police to deal with criminals during hostage rescues. In general, non-lethal ammunition is ammunition that can incapacitate a target but not seriously injure or kill it.

[0003] Currently, most non-metallic projectiles are launched using firearms, but firearms can only launch non-metallic projectiles of fixed specifications, resulting in poor versatility. Moreover, since non-metallic projectiles launched by firearms rely on the thrust of their own propellant detonated by a firing pin, the instantaneous explosive pressure propels the projectile, which often results in a fixed and high velocity, potentially causing serious injury or even death.

[0004] Therefore, there is an existing electromagnetic launching device with adjustable firing speed, following the laws of electromagnetic induction and Lenz's law. For example, Chinese invention patent application number 202011137713.4, entitled "A Reluctance Electromagnetic Gun with Controllable Projectile Acceleration Distance and Control Method," describes a reluctance electromagnetic gun with controllable projectile acceleration distance, including a barrel, a projectile, a main circuit, and a control circuit. The control circuit includes a microcontroller and a MOSFET driver circuit. The controller controls the MOSFETs in the main circuit to precisely control the charging and discharging time of the electromagnetic gun's acceleration coil, thereby actively changing the duration of the strong magnetic field inside the coil. The change in the acceleration coil's magnetic field is directly related to the projectile's acceleration distance. Through multiple tests, the relationship between the coil's energizing time and the projectile's range is obtained. Finally, this relationship is used to control the projectile's acceleration distance, ultimately changing the projectile's range. The patent also provides a control method for a reluctance electromagnetic gun with controllable projectile acceleration distance. This invention can effectively solve the problems of difficult selection of capacitor capacity and low acceleration efficiency in conventional reluctance coil guns, and improve the maximum exit velocity of the projectile; at the same time, the projectile range can be controlled without adding other control devices.

[0005] The aforementioned patent discloses a reluctance electromagnetic railgun with controllable projectile acceleration distance, solving the problem of controllable projectile range. However, to meet the needs of various applications, there are many types of non-metallic projectiles, including those with regular shapes and sizes such as rod-shaped and spherical projectiles, as well as smaller ones such as needle-shaped projectiles, and those with irregular shapes such as water projectiles and flexible projectiles. Therefore, the technical problem to be solved by this patent application is: how to enable the electromagnetic launching device to meet the launching requirements of the above-mentioned various types of non-metallic projectiles.

[0006] In view of this, this invention patent is hereby proposed. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention proposes a loading armature for electromagnetically launching non-metallic projectiles and an electromagnetic launching device, specifically employing the following technical solution:

[0008] An armature for loading non-metallic projectiles for electromagnetic launch includes a metal housing with an open loading chamber for loading non-metallic projectiles; the closed end of the metal housing has a through-hole communicating with the loading chamber.

[0009] As an optional embodiment of the present invention, the non-metallic projectile is a rod-shaped projectile or a spherical projectile, and the loading chamber inside the metal shell is a cylindrical chamber. The cross-sectional diameter Dt of the non-metallic projectile and the inner diameter Dr of the loading chamber satisfy the following relationship: 1 / 2*Dr≤Dt≤Dr.

[0010] As an optional embodiment of the present invention, an armature for loading non-metallic projectiles for electromagnetic launch includes a flexible filler, the flexible filler having a circular ring structure, the non-metallic projectile being a rod-shaped projectile or a spherical projectile, and the loading chamber within the metal shell being a cylindrical chamber. When the cross-sectional diameter Dt of the non-metallic projectile and the inner diameter Dr of the loading chamber satisfy the condition: Dt < 1 / 2 * Dr, the flexible filler fills the gap between the non-metallic projectile and the metal shell.

[0011] As an optional embodiment of the present invention, a loading armature for electromagnetically launching non-metallic projectiles includes a snap-fit ​​component disposed in the open end of the loading chamber, wherein the non-metallic projectile is an irregularly shaped projectile, and the irregularly shaped projectile is snapped and fixed in the loading chamber by the snap-fit ​​component.

[0012] As an optional embodiment of the present invention, the snap-fit ​​element is an elastic card. A plurality of elastic cards are distributed circumferentially on the open end of the loading chamber. The first end of the elastic card is blocked and limited outside the open end of the loading chamber, and the second end of the elastic card extends into the open end of the loading chamber and extends towards the center. The irregularly shaped projectile is snapped and fixed by the second ends of the plurality of elastic cards.

[0013] As an optional embodiment of the present invention, the first end of the elastic card is a first horizontal arm, the second end of the elastic card is a second horizontal arm, and the elastic card further includes an inclined connecting arm connecting the first horizontal arm and the second horizontal arm.

[0014] As an optional embodiment of the present invention, a loading armature for electromagnetically launching non-metallic projectiles includes a compression spring. One end of the compression spring is fixed to the second end of the elastic card, and the other end abuts against the inner wall of the loading chamber. The compression spring is in a compressed state after the irregularly shaped projectile is loaded.

[0015] This invention also provides an electromagnetic launching device having a loading armature for an electromagnetically launched non-metallic projectile, comprising:

[0016] A non-metallic projectile is loaded into the loading chamber of the loading armature;

[0017] An armature drive mechanism includes a drive power supply, a drive coil, and an acceleration tube. The drive power supply is connected to the drive coil circuit. The drive coil has a hollow coil tube inside. The acceleration tube is connected to the hollow coil tube.

[0018] The decoupling mechanism includes a decoupling sleeve with a decoupling step inside, the decoupling sleeve being connected to the acceleration tube;

[0019] The loading armature is installed inside the hollow coil tube and close to one end of the acceleration tube. By controlling the driving power supply to provide pulse current to the driving coil, the loading armature is launched under the drive of the driving coil. After being accelerated by the acceleration tube, it enters the de-split sleeve and is blocked by the de-split step. The non-metallic projectile is launched after separating from the loading armature.

[0020] As an optional embodiment of the present invention, the armature drive mechanism includes a positioning post, a positioning groove at the first end of the positioning post, and a limiting protrusion at the second end. The first end of the positioning post is inserted into the hollow coil tube. The closed end of the metal housing of the loaded armature has a positioning boss, which abuts against the positioning groove. The limiting protrusion on the second end of the positioning post is limited and abuts against the end of the hollow coil tube. The through-hole is formed on the positioning boss.

[0021] As an optional embodiment of the present invention, a method for electromagnetically launching a non-metallic projectile includes a velocity measuring mechanism. The velocity measuring mechanism includes an electromagnetic shield, a velocity sensor, and a DC power supply. The electromagnetic shield is disposed on the launch path of the non-metallic projectile, the velocity sensor is installed inside the electromagnetic shield, and the DC power supply is electrically connected to the velocity sensor.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention discloses a loading armature for electromagnetically launching non-metallic projectiles. It has a metal casing and can be launched in an electromagnetic launching device. The non-metallic projectile is loaded into a loading chamber within the metal casing, and the loading armature carries the projectile for launch. This embodiment allows for the electromagnetic launch of different types of non-metallic projectiles via the loading armature. Furthermore, during the process of loading the non-metallic projectile into the loading chamber through the open end of the metal casing, the through-hole maintains communication between the loading chamber and the external environment, preventing the non-metallic projectile from creating a sealed chamber and avoiding the impact of internal air pressure on the loading of the non-metallic projectile.

[0024] The electromagnetic launching device of this invention utilizes electromagnetic drive to launch non-metallic projectiles. The electromagnetic drive principle operates through the magnetic coupling mechanism between the drive coil and the metal casing of the loading armature. The fundamental laws governing this are the law of electromagnetic induction and Lenz's law. First, a pulsed current is supplied to the drive coil upon closing the drive power switch. This pulsed current generates a changing magnetic field in the drive coil, inducing a current in the metal casing of the loading armature. This induced current in the metal casing, in turn, generates an induced magnetic field. According to Lenz's law, the magnetic field of the induced current always opposes the change in the magnetic flux that caused it. Therefore, the magnetic field generated by the drive coil and the induced magnetic field of the metal casing repel each other. Since the magnetic induction intensity of the drive coil decreases from the center outwards, if the center plane of the loading armature is to the right of the center plane of the drive coil, the loading armature will experience a repulsive force to the right; if the center plane of the loading armature is to the left of the center plane of the drive coil, the loading armature will experience a repulsive force to the left.

[0025] Therefore, the electromagnetic launching device of the present invention has the following advantages:

[0026] 1. The electromagnetic launching device of the present invention utilizes electromagnetic drive to launch non-metallic projectiles. By controlling the charge on the armature drive mechanism, the launching speed of the non-metallic projectile can be controlled, thus meeting the needs of various application scenarios.

[0027] 2. The electromagnetic launching device of the present invention utilizes a loading armature to load non-metallic projectiles, enabling the launching of different types of non-metallic projectiles and thus having greater versatility.

[0028] 3. The electromagnetic launching device of the present invention, since its launching speed is controllable and it can be compatible with launching different types of non-metallic projectiles, can be used as an experimental device to study the target impact effect under different types and launching speeds. Attached image description:

[0029] Figure 1 A three-dimensional structural diagram of an electromagnetic launching device according to an embodiment of the present invention;

[0030] Figure 2 A partial structural explosion of an electromagnetic launching device according to an embodiment of the present invention Figure 1 ;

[0031] Figure 3 A partial structural explosion of an electromagnetic launching device according to an embodiment of the present invention Figure 2 ;

[0032] Figure 4 A cross-sectional view of the internal structure of an electromagnetic launching device according to an embodiment of the present invention;

[0033] Figure 5 A three-dimensional structural schematic diagram of the projectile shielding cover according to an embodiment of the present invention;

[0034] Figure 6 A three-dimensional structural schematic diagram of the loading armature according to an embodiment of the present invention;

[0035] Figure 7 A front view of one embodiment of the loading armature of the present invention;

[0036] Figure 8 The armature loading edge of the embodiment of the present invention Figure 7 A cross-sectional view of the AA plane;

[0037] Figure 9 A front view of yet another embodiment of the loading armature of the present invention;

[0038] Figure 10 The armature of this invention Figure 9 A cross-sectional view of the BB plane;

[0039] Figure 11 A three-dimensional structural diagram of the elastic card according to an embodiment of the present invention;

[0040] Figure 12 A front view of yet another embodiment of the loading armature of the present invention;

[0041] Figure 13 The armature of this invention Figure 12 A sectional view of the C-plane;

[0042] Figure 14 Cross-sectional view of the electromagnetic transmitting device of Embodiment 3 of the present invention (Embodiment 1);

[0043] Figure 15 Cross-sectional view of the electromagnetic transmitting device of Embodiment 3 of the present invention (Embodiment 2);

[0044] Figure 16 Cross-sectional view of the electromagnetic transmitting device of Embodiment 3 of the present invention (Embodiment 3);

[0045] Figure 17 Cross-sectional view of the electromagnetic launching device of Embodiment 3 of the present invention (Embodiment 4);

[0046] Figure 18 Cross-sectional view of the electromagnetic transmitting device of Embodiment 3 of the present invention (Embodiment 5);

[0047] Figure 19 Cross-sectional view of the electromagnetic launching device of Embodiment 3 of the present invention (Embodiment 6);

[0048] Figure 20 A three-dimensional structural diagram of the speed measuring mechanism in Embodiment 4 of the present invention (top cover removed);

[0049] Figure 21 Schematic diagram of the speed measuring mechanism in use according to Embodiment 4 of the present invention (Embodiment 1);

[0050] Figure 22 Schematic diagram of the speed measuring mechanism in use according to Embodiment 4 of the present invention (Embodiment 2). Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0052] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0053] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Example 1

[0057] See Figures 1-8 As shown, an electromagnetic transmitting device according to this embodiment includes:

[0058] Non-metallic projectile (not shown);

[0059] The loading armature 600 includes a metal housing 601 with an open loading chamber 604 inside, and the non-metallic projectile is loaded in the loading chamber 604;

[0060] An armature drive mechanism includes a drive power supply, a drive coil 207 and an acceleration tube 204. The drive power supply is circuitally connected to the drive coil 207. The drive coil 207 has a drive coil tube 202 inside. The acceleration tube 204 is connected to the drive coil tube 202.

[0061] The de-pivot mechanism includes a de-pivot sleeve 501 with a de-pivot step inside, and the de-pivot sleeve 501 is connected to the acceleration tube 204.

[0062] The loading armature 600 is installed inside the drive coil tube 202 and close to one end of the acceleration tube 204. By controlling the drive power supply to provide pulse current to the drive coil 207, the loading armature 600 is launched under the drive of the drive coil 207. After being accelerated by the acceleration tube 204, it enters the de-pillaring sleeve 501 and is blocked by the de-pillaring step. The non-metallic projectile is launched after separating from the loading armature 600.

[0063] This embodiment of an electromagnetic launching device utilizes electromagnetic drive to launch a non-metallic projectile. The electromagnetic drive principle is as follows: it operates using the magnetic coupling mechanism between the drive coil 207 and the metal casing 601 of the loading armature 600. The basic laws followed are still the law of electromagnetic induction and Lenz's law. First, the drive power switch is closed to supply a pulse current to the drive coil 207. The drive coil 207, with the pulse current, generates a changing magnetic field, thereby inducing a current in the metal casing 601 of the loading armature 600. The induced current generated by the metal casing 601 in turn generates an induced magnetic field. According to Lenz's law, the magnetic field of the induced current always opposes the change in the magnetic flux that caused the induced current. Therefore, the magnetic field generated by the drive coil 207 and the induced magnetic field of the metal casing 601 repel each other. Since the magnetic induction intensity of the drive coil 207 decreases from the center to both sides, if the center plane of the loading armature 600 is to the right of the center plane of the drive coil 207, the loading armature 600 will be subjected to a repulsive force to the right; if the center plane of the loading armature 600 is to the left of the center plane of the drive coil 207, the loading armature 600 will be subjected to a repulsive force to the left.

[0064] Therefore, the electromagnetic launching device of this embodiment has the following advantages:

[0065] 1. An electromagnetic launching device according to this embodiment uses electromagnetic drive to launch a non-metallic projectile. By controlling the charge on the armature drive mechanism, the launching speed of the non-metallic projectile can be controlled, meeting the needs of various application scenarios.

[0066] 2. The electromagnetic launching device of this embodiment uses the loading armature 600 to load non-metallic projectiles, which can launch different types of non-metallic projectiles and has stronger versatility.

[0067] 3. The electromagnetic launching device of this embodiment, since its launching speed is controllable and it can be compatible with launching different types of non-metallic projectiles, can be used as an experimental device to study the target impact effect under different types and launching speeds.

[0068] This embodiment of an electromagnetic launching device achieves the separation of the non-metallic projectile from the loading armature 600, which is key to launching the non-metallic projectile using electromagnetic drive. Therefore, see [link to relevant documentation]. Figure 4As shown, the decoupling mechanism in this embodiment includes a buffer sleeve 503. The first end of the decoupling sleeve 501 is connected to the acceleration tube 204. The buffer sleeve 503 is tightly fitted inside the second end of the decoupling sleeve 501, forming a decoupling step inside the decoupling sleeve 501. The inner diameter of the decoupling sleeve 501 is greater than or equal to the inner diameter of the acceleration tube 204. The inner diameter of the buffer sleeve 503 is smaller than the outer diameter of the loading armature 600, but larger than the inner diameter of the loading armature 600. Thus, the loading armature 600, loaded with a non-metallic projectile, is accelerated under the drive of the drive coil 207. When the loading armature 600 moves through the acceleration tube 204 into the decoupling sleeve 501, it is blocked by the decoupling step and stops moving. The non-metallic projectile continues to move due to inertia, achieving separation from the loading armature 600.

[0069] Furthermore, in this embodiment, an electromagnetic launching device includes a launching tube 400. One end of the launching tube 400 is inserted into the second end of the disengagement sleeve 501. The non-metallic projectile is launched from the launching tube 400 after separating from the loading armature 600 within the disengagement sleeve 501. The launching tube 400 is connected to the buffer sleeve 503, and the inner diameter of the launching tube 400 is equal to or slightly larger than the inner diameter of the buffer sleeve 503. In this embodiment, the launching tube 400 both guides the launch path of the non-metallic projectile and positions the buffer sleeve 503.

[0070] See Figure 3 and Figure 4 As shown in the figure, an electromagnetic launching device of this embodiment includes a mounting base 100. The driving coil 207 includes a coil support 203 and a driving coil 207 mounted on the coil support (the driving coil 207 is not fully shown in the figure and is only for illustrative purposes). The de-pivot mechanism includes a de-pivot support 502, and a de-pivot sleeve is mounted on the de-pivot support 502. The coil support 203 and the de-pivot support 502 are respectively fixed on the mounting base 100 and are on the same straight line. The acceleration tube 204 is clamped between the coil support 203 and the de-pivot support 502. The driving coil tube 202, the acceleration tube 204, the de-pivot sleeve 501, the buffer sleeve 503, and the launching tube 400 are arranged along a common central axis. This embodiment realizes the common central axis arrangement of the armature driving mechanism, the de-pivot mechanism, and the launching tube 400, which is beneficial to ensuring the launching reliability of the loaded armature.

[0071] See Figure 3 and Figure 4As shown in the figure, this embodiment provides an electromagnetic launching device. The armature drive mechanism includes a positioning post 206. The positioning post 206 is inserted into the drive coil tube 202 of the drive coil 207 at the end away from the acceleration tube 204. The loading armature 600 is loaded into the drive coil tube 202 and positioned by the positioning post 206. Since the loading armature 600 in this embodiment needs to be placed on one side (left or right of the center position) of the drive coil tube 202 of the drive coil 207 to achieve electromagnetic drive based on Lenz's law, an incorrect initial position of the loading armature 600 will affect the launch. Therefore, in this embodiment, after the loading armature 600 is loaded into the drive coil tube 202 of the drive coil 207, the positioning post 206 is used to determine whether the loading armature 600 is properly loaded. Specifically, if the loading armature 600 is loaded from the left end of the drive coil tube 202 of the drive coil 207, the positioning pin 206 is first inserted from the right end of the drive coil tube 202 of the drive coil 207, and then the loading armature 600 is loaded from the left end of the drive coil tube 202 of the drive coil 207 until it abuts against the end of the positioning pin 206, thus completing the loading; if the loading armature 600 is loaded from the right end of the drive coil tube 202 of the drive coil 207, the loading armature 600 is first inserted into the right end of the drive coil tube 202 of the drive coil 207, and then the positioning pin 206 is inserted from the right end of the drive coil tube 202 of the drive coil 207. When the positioning pin 206 is fully inserted, the positioning pin 206 pushes the loading armature 600 to the firing position.

[0072] As an optional implementation of this embodiment, in order to better position the loading armature 600, the first end of the positioning post 206 in this embodiment has a positioning groove 206A and the second end has a limiting protrusion 206B. The first end of the positioning post 206 is inserted into the drive coil tube 202, the tail end of the loading armature 600 is limited and abuts against the positioning groove 206A, and the limiting protrusion 206B on the second end of the positioning post 206 is limited and abuts against the end of the drive coil tube 202.

[0073] As an optional implementation method in this embodiment, see Figures 2-4 As shown, in this embodiment, an acceleration tube loading port 205 is opened on the upper side of the tube wall of the acceleration tube 204, and the loading armature 600 loaded with the non-metallic projectile is loaded into the drive coil tube 202 through the acceleration tube loading port 205.

[0074] Since the loading armature 600 separates from the non-metallic projectile under the action of the decoupling mechanism, the separated loading armature 600 is retained in the decoupling sleeve 501 or the acceleration tube 204. Therefore, in order to recover the loading armature 600 for the next non-metallic projectile launch, see [reference needed]. Figure 15As shown, an electromagnetic launching device in this embodiment includes a drag rope 700, one end of which is fixed to the tail end of the loading armature 600, and the other end extends out of the drive coil tube 202 of the drive coil 207.

[0075] See Figure 1 and Figure 2 As shown, the armature drive mechanism includes a coil shield 201 that covers the drive coil 207. The de-spinning mechanism includes a projectile shield 208 that covers the acceleration tube 204 and the de-spinning sleeve. The projectile shield 208 has a projectile loading port 208A, and a pull-out plate is installed on the projectile loading port 208A. The projectile loading port 208A is opened and closed by pulling the pull-out plate. In this embodiment, an acceleration tube opening 208B is opened on the side wall of the projectile shield 208, and the acceleration tube 204 passes through the acceleration tube opening 208B.

[0076] See Figure 1-4 and Figure 20 As shown, an electromagnetic launching device according to this embodiment includes a velocity measuring mechanism 300. The velocity measuring mechanism 300 includes an electromagnetic shielding cover 301, velocity sensors (303, 304), and a DC power supply 307. The electromagnetic shielding cover 301 is disposed on the launching path of the non-metallic projectile. The velocity sensors (303, 304) are installed inside the electromagnetic shielding cover 301. The DC power supply 307 is electrically connected to the velocity sensors (303, 304). The velocity measuring mechanism 300 of this embodiment can detect the launching velocity of the non-metallic projectile and simultaneously evaluate the impact effect of the same type of non-metallic projectile at various launching velocities based on the damage caused by the non-metallic projectile on the experimental target.

[0077] The operating logic of the electromagnetic transmitting device in this embodiment is as follows:

[0078] The non-metallic projectile is loaded into the loading armature 600 (the casing is made of aluminum).

[0079] Open the pull plate on the loading projectile shield 208, manually push the loading armature 600 containing the non-metallic projectile through the loading port 208A of the shield, and then through the loading port 205 of the acceleration tube 204, and place it into the port on one side of the drive coil 207 (according to the coil drive principle, the armature moves to the left, so it needs to be placed on the left side close to the center of the drive coil 207).

[0080] When the bottom end of the loading armature 600 contacts the positioning post 206, loading is complete, and the pull-out plate is closed.

[0081] The drive coil 207 is energized and discharged, causing the loading armature 600 to drive the non-metallic projectile, accelerating it to the left. It first passes through the accelerator tube 204. When the loading armature 600 contacts the armature release mechanism, the armature 600 is blocked and slowed down. The non-metallic projectile, unaffected by the armature release mechanism, continues forward under inertia. The non-metallic projectile separates from the loading armature 600, which is then held in place. The non-metallic projectile continues forward, entering the launch tube 400, passing through the velocity measuring mechanism 300, and finally flying towards the target chamber to strike the target.

[0082] In addition, after the non-metallic projectile is loaded into the loading armature 600 of this embodiment, it enters from the right side of the drive coil, and the positioning post 206 pushes the loading armature 600 to the predetermined position before the drive coil is powered on and launched.

[0083] Example 2

[0084] See Figures 6-13 As shown, this embodiment provides a loading armature 600 for electromagnetically launching non-metallic projectiles, including a metal housing 601 and an open loading chamber 604 for loading non-metallic projectiles; the closed end of the metal housing 601 has a through-hole 602 communicating with the loading chamber 604. Thus, during the process of loading the non-metallic projectile into the loading chamber 604 through the open end of the metal housing 601, the through-hole 602 keeps the loading chamber 604 connected to the external environment, preventing the non-metallic projectile from making the loading chamber 604 a sealed chamber, and preventing the internal air pressure of the sealed chamber from affecting the loading of the non-metallic projectile.

[0085] See Figures 6-8 As shown, the non-metallic projectile in this embodiment is a rod-shaped projectile or a spherical projectile. The loading chamber 604 inside the metal casing 601 is a cylindrical chamber. The cross-sectional diameter Dt of the non-metallic projectile and the inner diameter Dr of the loading chamber 604 satisfy the following relationship: 1 / 2*Dr≤Dt≤Dr. This ensures that the non-metallic projectile can be smoothly loaded into the loading chamber 604 of the metal casing 601, and that the non-metallic projectile remains relatively stable with respect to the loading chamber 604 after loading, avoiding excessive movement of the non-metallic projectile and affecting the stability of the firing process.

[0086] As can be seen from the above embodiments, the loading armature of this embodiment requires the loaded non-metallic projectile to have a certain size. However, for non-metallic projectiles with smaller dimensions, the loading armature for electromagnetically launching non-metallic projectiles in this embodiment includes a flexible filler (such as sponge, foam, etc. for support). The flexible filler has a circular ring structure, and the non-metallic projectile is a rod-shaped projectile or a spherical projectile. The loading chamber inside the metal shell is a cylindrical chamber. When the cross-sectional diameter Dt of the non-metallic projectile and the inner diameter Dr of the loading chamber satisfy the condition: Dt < 1 / 2 * Dr, the flexible filler fills the gap between the non-metallic projectile and the metal shell. The loading armature for electromagnetically launching non-metallic projectiles in this embodiment achieves the loading of non-metallic projectiles with smaller dimensions by adding a flexible filler. When loading non-metallic projectiles with larger dimensions, the flexible filler can be removed, thus improving the compatibility of the loading armature for loading non-metallic projectiles of different sizes.

[0087] Furthermore, existing non-metallic projectiles also include those with irregular shapes, such as water bullets and flexible projectiles. In order to be compatible with the loading of this type of non-metallic projectile, an armature for loading non-metallic projectiles for electromagnetic launch in this embodiment includes a snap-fit ​​member 605 disposed in the open end of the loading chamber 604. The non-metallic projectile is an irregularly shaped projectile (such as a sponge bullet, a bag bullet, etc.), and the irregularly shaped projectile is snapped and fixed in the loading chamber 604 by the snap-fit ​​member 605.

[0088] Specifically, in this embodiment, the snap-fit ​​component 605 is an elastic clip. Multiple elastic clips are distributed circumferentially around the open end of the loading chamber 604. The first end of each elastic clip is blocked and limited outside the open end of the loading chamber 604, while the second end extends into the open end of the loading chamber 604 and towards the center. The irregularly shaped projectile is snapped and fixed by the second ends of the multiple elastic clips. This embodiment, by adding four or six elastic clips, ensures that the projectile is centered and that the elastic clips clamp the irregularly shaped projectile (such as a sponge bullet or a beanbag round) around the space, preventing the irregularly shaped projectile from detaching when the loading armature 600 suddenly accelerates it.

[0089] See Figure 11 As shown, as an optional implementation of this embodiment, the first end of the elastic card in this embodiment is a first horizontal arm 605A, the second end of the elastic card is a second horizontal arm 605C, and the elastic card also includes an inclined connecting arm 605B connecting the first horizontal arm 605A and the second horizontal arm 605C.

[0090] Further, see Figure 12 and Figure 13As shown, an armature for loading non-metallic projectiles for electromagnetic launch in this embodiment includes a compression spring 606. One end of the compression spring 606 is fixed to the second end of the elastic card, and the other end abuts against the inner wall of the loading chamber 604. The compression spring 606 is in a compressed state after the irregularly shaped projectile is loaded. The compression spring 606 in this embodiment increases the clamping force of the elastic card on the irregularly shaped projectile.

[0091] Example 3

[0092] See Figures 14-17 As shown, this embodiment of an electromagnetic transmitting device includes:

[0093] Non-metallic projectile;

[0094] The loading armature 600 includes a metal housing 601 with an open loading chamber 604 inside, and the non-metallic projectile is loaded in the loading chamber 604;

[0095] An armature drive mechanism includes a drive coil 207, wherein the drive coil 207 has a drive coil tube 202 inside;

[0096] A decoupling mechanism is provided on the movement path of the loading armature 600 driven by the armature drive mechanism. The decoupling mechanism achieves the separation of the non-metallic projectile from the loading armature 600 by blocking / decelerating the movement of the loading armature 600.

[0097] The loading armature 600 is installed inside the drive coil tube 202 of the drive coil 207. By providing a pulse current to the drive coil 207, the loading armature 600 carries the non-metallic projectile and accelerates under the drive of the drive coil 207. After passing through the de-armature mechanism, the non-metallic projectile separates from the loading armature 600 and is launched.

[0098] This embodiment describes an electromagnetic launching device. The decoupling mechanism separates the non-metallic projectile from the loading armature 600 by blocking / decelerating the movement of the loading armature 600, thereby enabling the launching of the non-metallic projectile.

[0099] As an optional implementation method in this embodiment, see Figure 14 As shown in the figure, in an electromagnetic launching device of this embodiment, the armature driving mechanism includes an acceleration tube 204, which is connected to the driving coil tube 202.

[0100] The decoupling mechanism includes a decoupling sleeve 501 that is connected to the acceleration tube 204. The decoupling sleeve 501 has a decoupling step inside the pipe. The decoupling step is used to block the movement of the loading armature 600 to achieve the separation of the non-metallic projectile from the loading armature.

[0101] Specifically, the de-pivot mechanism includes a buffer sleeve 503, which is fitted inside the de-pivot sleeve 501, and the buffer sleeve 503 and the de-pivot sleeve 501 are interference-fitted; the inner diameter of the de-pivot sleeve 501 is greater than or equal to the inner diameter of the acceleration tube 204, the inner diameter of the buffer sleeve 503 is smaller than the outer diameter of the loading armature 600, and larger than the inner diameter of the loading armature 600, the wall of the buffer sleeve 503 protrudes from the inner wall of the de-pivot sleeve 501, forming a de-pivot step, and the loading armature 600 is blocked from separation by the end of the buffer sleeve 503.

[0102] See Figure 14 The aforementioned de-pivot mechanism, when the loading armature 600 has a low speed, involves a radial interference fit between the buffer sleeve 503 and the de-pivot sleeve 501, with the right end contacting the port of the launch tube 400. The buffer sleeve 503 is made of rubber or foam.

[0103] See Figure 15 As shown, in this embodiment, a limiting protrusion 504 is provided on the inner wall of the internal pipe of the de-spinning sleeve 501, and the end of the buffer sleeve 503 abuts against the limiting protrusion 504. The height of the limiting protrusion 504 is less than or equal to the wall thickness of the buffer sleeve 503.

[0104] The buffer sleeve 503 described in this embodiment is made of flexible buffer material. The electromagnetic launching device includes a drag rope. One end of the drag rope 700 is fixed to the closed end of the metal housing 601 of the loading armature 600, and the other end extends out of the drive coil tube 202 of the drive coil 207.

[0105] See Figure 15 In the aforementioned decoupling mechanism, when the loading armature 600 of this embodiment reaches a high speed, the shape of the decoupling sleeve 501 is changed. A limiting protrusion 504 is provided on the inner wall of the internal pipe of the decoupling sleeve 501. A buffer sleeve 503 is fitted inside the decoupling sleeve 501 to prevent the buffer sleeve 503 from contacting the launch tube 400, thereby ensuring a firm fit with the launch tube 400. A drag rope is added behind the loading armature 600 to retrieve the loading armature 600 for loading.

[0106] See Figure 16As shown, the buffer sleeve 503 in this embodiment is a spring tube. The electromagnetic launching device includes a recovery bag 800. The opening of the recovery bag 800 is fitted onto the side of the drive coil tube 202 of the drive coil 207 that is not loaded with the non-metallic projectile. After the loading armature 600 is blocked and rebounded by the spring tube, it is recovered by the recovery bag 800. The outer diameter of the spring tube is equal to the inner diameter of the decoupling sleeve 501. The spring tube and the decoupling sleeve 501 are interference-fitted to prevent the spring tube from falling off. The inner diameter of the spring tube is larger than the outer diameter of the non-metallic projectile but smaller than the outer diameter of the loading armature 600.

[0107] See Figure 16 In this embodiment, when the loading armature 600 is at a high speed, the loading armature 600 impacts the spring tube, causing the loading armature 600 to separate from the non-metallic projectile body. The loading armature 600 is then bounced back and, after being violently rebounded, is recovered by the recovery bag 800.

[0108] See Figure 17 As shown, when the loading armature 600 is at a low speed, a reinforcing rib is added to the outside of the loading armature 600. On the one hand, the loading armature 600 is used for assembly, and on the other hand, the loading armature 600 makes a hard contact with the decoupling step 505 on the outside of the decoupling sleeve 501 to decouple.

[0109] See Figure 18 As shown, in this embodiment of an electromagnetic launching device, the decoupling mechanism includes a deceleration coil 902, inside which is a deceleration coil tube 901. One end of the acceleration tube 204 is connected to the right side of the drive coil tube 202, and the other end is connected to the left side of the deceleration coil tube 901. By providing a pulse current to the drive coil 902, the loading armature 600 is driven and accelerated on the right side of the drive coil 207. By providing a pulse current to the deceleration coil 902, the loading armature 600 on the left side of the deceleration coil 902 is decelerated and separated from the non-metallic projectile.

[0110] Furthermore, an electromagnetic launching device according to this embodiment includes a first speed measuring mechanism 300A and a control mechanism 1000. The first speed measuring mechanism 300A and the deceleration coil 902 are respectively communicatively connected to the control mechanism 1000. The first speed measuring mechanism 300A is disposed outside the acceleration tube 204 and is used to detect the speed V1 of the loading armature 600 inside the acceleration tube 204 when it passes the speed measuring mechanism. The control mechanism 1000 receives the speed V1 of the loading armature 600 detected by the first speed measuring mechanism 300A and determines the energizing time of the deceleration coil 902 according to the distance S1 between the first speed measuring mechanism 300A and the middle position of the deceleration coil 902.

[0111] In this embodiment, the decoupling mechanism can be supplemented with multiple deceleration coils 902, reducing the speed of the loading armature 600 to zero. A towing rope can then be added behind the loading armature 600 to retrieve it. Alternatively, the loading armature 600 can be decelerated by a single deceleration coil 902, achieving separation of the loading armature 600 from the non-metallic projectile, and then employing methods such as... Figures 14-7 Any of the disengagement schemes can achieve hard braking.

[0112] The disengagement mechanism of this embodiment includes a deceleration coil bracket 903, on which the deceleration coil 902 is mounted, and the deceleration coil bracket 903 is fixedly mounted on the mounting base 100.

[0113] See Figure 19 As shown, an electromagnetic transmitting device according to this embodiment includes a pneumatic deceleration mechanism 1200 and a transmitting tube 400. The transmitting tube 400 is connected to the deceleration coil tube 901. The speed measuring mechanism includes a first speed measuring mechanism 300A and a second speed measuring mechanism 300B. The first speed measuring mechanism 300A is disposed outside the acceleration tube 204, and the second speed measuring mechanism 300B is disposed outside the transmitting tube 400.

[0114] The pneumatic deceleration mechanism 1200 includes a pneumatic pump, which is connected to the launch tube 400 located behind the second speed measuring mechanism 300B. The pneumatic pump introduces high-pressure gas into the launch tube 400 in the opposite direction to the movement direction of the loading armature 600.

[0115] The first velocity measuring mechanism 300A, the second velocity measuring mechanism 300B, and the pneumatic deceleration mechanism 1200 are all communicatively connected to the control mechanism 1000. The second velocity measuring mechanism 300B detects the velocity V2 of the non-metallic projectile inside the launch tube 400 as it passes the second velocity measuring mechanism and sends it to the control mechanism 1000. The control mechanism 1000 then controls the pneumatic pump to start. The control mechanism determines the working time t2 of the pneumatic pump based on the velocity V2 of the non-metallic projectile received by the non-metallic projectile and the distance S2 between the second velocity measuring mechanism 300B and the position on the launch tube 400 connected to the pneumatic pump. In this embodiment, the control mechanism 1000 is communicatively connected to relevant electronic equipment via a communication cable 1100.

[0116] This embodiment also provides a control method for an electromagnetic launching device, the electromagnetic launching device including a control mechanism, and the control method includes:

[0117] The control mechanism receives the launch command and controls the supply of pulse current to the drive coil. Under the drive of the drive coil, the loading armature carries the non-metallic projectile and accelerates. After passing through the decoupling mechanism, the non-metallic projectile separates from the loading armature and is launched.

[0118] See Figure 18 As shown, a control method for an electromagnetic launching device according to this embodiment includes:

[0119] After the drive coil stops receiving power, the control mechanism controls the supply of pulse current to the deceleration coil;

[0120] The first velocity measuring mechanism detects the velocity V1 of the loading armature carrying the non-metallic projectile as it passes the first velocity measuring mechanism, and sends the detected velocity V1 to the control mechanism.

[0121] The control mechanism calculates the time t1 for the loading armature to move to the middle position of the deceleration coil based on the speed V1 and the distance S1 between the first speed measuring mechanism and the middle position of the deceleration coil.

[0122] The control mechanism controls the deceleration coil to stop supplying power after a set time interval ts following the detection of the loading armature by the first speed measuring mechanism. The set time interval ts satisfies: ts≤t1.

[0123] See Figure 19 As shown, a control method for an electromagnetic launching device according to this embodiment includes:

[0124] When the second velocity measuring mechanism detects the passage of a non-metallic projectile inside the launch tube, the control mechanism controls the activation of the pneumatic pump, which introduces high-pressure gas into the launch tube, and the high-pressure gas applies pneumatic braking to the loading armature.

[0125] The second velocity measuring mechanism detects the velocity V2 of the non-metallic projectile inside the launch tube as it passes the second velocity measuring mechanism and sends it to the control mechanism;

[0126] The control mechanism receives the velocity V2 of the non-metallic projectile detected by the second velocity measuring mechanism, and calculates the working time t2 of the air pressure pump based on the distance S2 between the second velocity measuring mechanism and the position of the air pressure pump connected to the launch tube.

[0127] Specifically, t2 = S2 / V2 means that when the air pump is turned on for the duration of operation t2, the control mechanism controls the air pump to turn off.

[0128] Example 4

[0129] See Figures 1-4 and Figure 20-22 As shown, this embodiment provides a speed measuring mechanism for an electromagnetic launching device, comprising:

[0130] Electromagnetic shield 301 is installed in the emission path of the electromagnetic transmitting device;

[0131] A speed sensor is installed inside the electromagnetic shielding cover 301 to detect the speed of the launched object emitted by the electromagnetic launching device. In this embodiment, the launched object is a non-metallic projectile.

[0132] A speed measuring controller (not shown) is installed inside the electromagnetic shielding cover 301 and is communicatively connected to the speed measuring sensor;

[0133] DC power supply 307 is electrically connected to the speed controller.

[0134] The electromagnetic launching device of this embodiment generates strong electromagnetic interference when the driving coil is energized to launch a non-metallic projectile, which may interfere with the use of nearby electronic equipment. The speed measuring mechanism of this embodiment uses an electromagnetic shielding cover 301 to shield and isolate electronic equipment such as speed sensors and speed controllers to prevent magnetic field interference and affect the detection speed of the speed measuring mechanism.

[0135] Optionally, the electromagnetic shielding cover 301 in this embodiment is enclosed and isolated by a brass cover.

[0136] This embodiment provides a speed measuring mechanism for an electromagnetic launching device. The DC power supply 307 can be a dry cell battery or a power bank, but do not change the DC power supply 307 to a socket plug for direct power supply, because the electromagnetic gun has strong electromagnetic interference during the firing process, which will make it impossible to read the value.

[0137] In this embodiment, the electromagnetic shielding cover 301 has openings 302 on its opposite side walls, and the space between the two openings 302 is the passage path for the emitted object. The speed sensor includes a first speed probe pair 303 and a second speed probe pair 304. The first speed probe pair 303 and the second speed probe pair 304 are spaced apart along the direction of the passage path. The two speed probes of the first speed probe pair 303 are arranged opposite each other on both sides of the passage path, and the two speed probes of the second speed probe pair 304 are arranged opposite each other on both sides of the passage path.

[0138] Specifically, in this embodiment, both the first speed measuring probe pair 303 and the second speed measuring probe pair 304 are laser probes. Each of the first speed measuring probe pair 303 and the second speed measuring probe pair 304 includes a laser emitting probe and a laser receiving probe. When the object being emitted passes between the two probes of the first speed measuring probe pair 303 and the second speed measuring probe pair 304, the laser reception will be blocked. The distance s between the first speed measuring probe pair 303 and the second speed measuring probe pair 304 is the time interval t between the first speed measuring probe pair 303 and the second speed measuring probe pair 304 triggered by the object being emitted. The emission speed v of the object being emitted is calculated according to the formula v = s / t.

[0139] See Figure 21As shown, the electromagnetic transmitting device in this embodiment includes a transmitting tube 400. The object to be transmitted is emitted from the transmitting tube 400. The transmitting tube 400 is disposed through two openings 302 on the electromagnetic shielding cover 301. A first pair of speed measuring holes and a second pair of speed measuring holes are provided at intervals on the tube wall inside the electromagnetic shielding cover 301. The two speed measuring probes of the first pair of speed measuring probes 303 are respectively positioned facing the two speed measuring holes of the first pair of speed measuring holes. The two speed measuring probes of the second pair of speed measuring probes 304 are respectively positioned facing the two speed measuring holes of the second pair of speed measuring holes.

[0140] See Figure 22 As shown, the electromagnetic transmitting device of this embodiment includes a transmitting tube 400, the object to be transmitted is emitted from the transmitting tube 400, and the electromagnetic shield 301 is disposed on the transmission path S after the outlet of the transmitting tube 400, with the opening 302 on the electromagnetic shield 301 facing the outlet of the transmitting tube 400.

[0141] The armature drive mechanism of the electromagnetic launching device in this embodiment includes a coil shield 201, which covers the drive coil 207.

[0142] This embodiment provides a speed measuring mechanism for an electromagnetic transmitting device, including a second electromagnetic shield 306 disposed inside the electromagnetic shield 306, covering the speed measuring controller.

[0143] This embodiment provides a speed measuring mechanism for an electromagnetic launch device, including a speed measuring display 305, which is embedded in the electromagnetic shielding cover 301.

[0144] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A breech for an electromagnetic projectile non-metallic projectile body, characterized in that, The metal shell has an open loading chamber for loading a non-metallic bullet body, and a through hole is formed in the closed end of the metal shell and communicates with the loading chamber. The bullet loading armature includes a clamping member arranged in the open end of the loading chamber, and the non-metallic bullet body is an irregular bullet body which is clamped and fixed in the loading chamber by the clamping member. The clamping member is an elastic clamping sheet, a plurality of the elastic clamping sheets are distributed around the open end of the loading chamber, the first end of the elastic clamping sheet is blocked and positioned outside the open end of the loading chamber, the second end of the elastic clamping sheet extends into the open end of the loading chamber and extends towards the center, and the irregular bullet body is clamped and fixed by the second end of the plurality of elastic clamping sheets. The first end of the elastic clamping sheet is a first horizontal arm, the second end of the elastic clamping sheet is a second horizontal arm, and the elastic clamping sheet further includes an inclined connecting arm connecting the first horizontal arm and the second horizontal arm.

2. A charging armature for an electromagnetic launch non-metallic projectile according to claim 1, wherein, A compression spring is arranged, one end of the compression spring is fixed to the second end of the elastic clamping sheet, and the other end of the compression spring abuts against the inner wall of the loading chamber, and the compression spring is in a compressed state after the irregular bullet body is loaded.

3. An electromagnetic launching device with a launching armature having a non-metallic projectile body with electromagnetic emission as claimed in any one of claims 1-2, characterized in that, The bullet loading armature includes a non-metallic bullet body loaded in the loading chamber of the bullet loading armature, an armature driving mechanism, a de-armature mechanism, and a speed measuring mechanism. The armature driving mechanism includes a driving power source, a driving coil, and an acceleration tube, the driving power source is circuit-connected with the driving coil, the driving coil has a hollow coil tube inside, and the acceleration tube is in butt joint communication with the hollow coil tube. The de-armature mechanism includes a de-armature sleeve having a de-armature step inside, and the de-armature sleeve is in butt joint communication with the acceleration tube. The bullet loading armature is loaded in the hollow coil tube and close to one end of the acceleration tube, pulse current is provided to the driving coil by controlling the driving power source, the bullet loading armature is launched under the driving of the driving coil, enters the de-armature sleeve after acceleration through the acceleration tube and is blocked by the de-armature step, and the non-metallic bullet body is launched after being separated from the bullet loading armature. The armature driving mechanism includes a positioning column, the first end of the positioning column has a positioning groove, the second end of the positioning column has a limiting convex ring, the first end of the positioning column is inserted into the hollow coil tube, the closed end of the metal shell of the bullet loading armature has a positioning boss, the positioning boss abuts in the positioning groove, and the limiting convex ring on the second end of the positioning column is limited and abuts at the end of the hollow coil tube; the through hole is formed on the positioning boss. The speed measuring mechanism includes an electromagnetic shielding cover, a speed measuring sensor, and a direct current power source, the electromagnetic shielding cover is arranged on the launching path of the non-metallic bullet body, the speed measuring sensor is installed in the electromagnetic shielding cover, and the direct current power source is electrically connected with the speed measuring sensor.

4. The electromagnetic launching device of claim 3, wherein ​ 5. Electromagnetic launching device according to any of claims 3-4, characterized in that ​

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