A method of transmitting for an electromagnetic transmission system

Abstract

The application relates to a launching method of an electromagnetic launching system and belongs to the technical field of firefighting, which solves the problem that long-distance fire extinguishing is difficult to realize in the prior art and the flight distance of a fire extinguishing bomb is difficult to control when the fire extinguishing bomb is launched. The launching method comprises the following steps: step S1: a launching turret adjusts a posture, and a detection device detects a target position and distance; step S2: the launching turret continues to adjust the posture according to the target position information detected by the detection device, so as to realize tracking and positioning of the target; and step S3: an electromagnetic launcher launches a load. The target position is detected by the detection device, the launching direction and distance are adjusted, and accurate launching is realized.

Description

Technical Field

[0001] This invention relates to the field of launch technology, and more particularly to a launch method for an electromagnetic launch system. Background Technology

[0002] Electromagnetic launch devices have always been a research hotspot in various countries. Electromagnetic launch offers significant advantages over traditional gunpowder-based launch methods, such as higher projectile velocity, greater kinetic energy, and controllable energy output. Electromagnetic launch technology holds immense promise for applications in aerospace and other fields. As a crucial component of electromagnetic launch technology, electromagnetic launch devices possess significant research value.

[0003] Current research on launching devices mainly focuses on artillery, with relatively little research on electromagnetic launching devices. Artillery launching devices primarily rely on manual azimuth and elevation adjustments to track targets, a method characterized by long preparation times, low launching efficiency, and poor continuous firing capability.

[0004] Therefore, a launch device with high launch speed and fast tracking response is needed. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a launching method for an electromagnetic launching system to solve the problems of existing fire extinguishing tools being unable to achieve long-distance fire extinguishing and the difficulty in controlling the flight distance of fire extinguishing projectiles when launching them.

[0006] The objective of this invention is mainly achieved through the following technical solutions:

[0007] A method for launching an electromagnetic launch system, characterized by comprising the following steps:

[0008] Step S1: The launch turret adjusts its attitude, and the detection device detects the target's position and distance;

[0009] Step S2: The launch turret continues to adjust its attitude based on the target position information detected by the detection device to achieve target tracking and positioning;

[0010] Step S3: Electromagnetic transmitter transmits load.

[0011] Furthermore, in step S1, the specific method by which the detection device detects the target position and distance is as follows:

[0012] Step S11: The launch turret adjusts the attitude of the cradle through the pitch transmission mechanism and the azimuth transmission mechanism, thereby changing the azimuth and pitch angles of the detection device on the cradle;

[0013] Step S12: The cradle maintains its attitude change until the target appears in the field of view of the zoomable visible light camera of the detection device; the detection of the target position is completed;

[0014] Step S13: The detection device uses a laser rangefinder to detect the distance between the target location and the launch point.

[0015] Furthermore, in step S2, the target tracking and localization process is as follows:

[0016] Step S21: The detection device controls the magnification of the zoom visible light camera to adjust the position of the target on the display screen;

[0017] Step S22: The launch turret adjusts its attitude according to the position information of the target detected by the detection device to keep the target always in the display screen; when the zoom visible light camera is adjusted to the maximum magnification, the launch turret adjusts its attitude to center the target on the display screen;

[0018] Step S23: The laser rangefinder detects the distance between the target and the emission point.

[0019] Furthermore, the laser rangefinder measures the target distance by taking multiple measurements, removing the highest and lowest values, and then taking the average value as the standard value of the distance between the target and the emission point.

[0020] Furthermore, in steps S1 and S2, the attitude adjustment method of the launching turret is as follows:

[0021] Step Q1: Adjust the pitch movement of the launch turret through the pitch transmission mechanism; the pitch transmission mechanism controls the extension and retraction of the electric cylinder; thereby causing the rocker arm to deflect at the pitch angle relative to the turntable;

[0022] Step Q2: Adjust the azimuth movement of the launch turret through the azimuth transmission mechanism; specifically, the azimuth transmission mechanism outputs torque, thereby driving the turntable of the launch turret to rotate relative to the base 1; when the turntable rotates, it drives the rocker arm and the electromagnetic transmitter and detection device installed on the rocker arm to move synchronously.

[0023] Step Q3: When the pitch and azimuth transmission mechanisms are in motion, the pitch and azimuth angles of the cradle are monitored in real time through the combination of pitch and azimuth angle measurements.

[0024] Furthermore, in step S3, the process of the electromagnetic transmitter transmitting the load is as follows:

[0025] Step S31: Load the load into the electromagnetic transmitter so that the load is parallel to the transmitting armature; and monitor whether the load is loaded in place by the position sensor; when the load is loaded in place, the transmitting armature contacts the position sensor on the positioning cylinder.

[0026] Step S32: After the drive coil is energized, it generates electromagnetic induction with the transmitting armature, driving the transmitting armature to move linearly relative to the drive coil.

[0027] Step S33: When the transmitting armature is linearly displaced, it drives the load to move synchronously, providing the initial velocity for the load to be emitted from the tube.

[0028] Furthermore, after the load is launched from the tube, the electromagnetic transmitter moves backward relative to the cradle under the action of recoil force; and the recoil force is buffered by the anti-recoil device.

[0029] Furthermore, the electromagnetic launch system includes: a launch turret, an electromagnetic transmitter, and a detection device; the launch turret includes: a pitch transmission mechanism, an azimuth transmission mechanism, and a cradle; the pitch transmission mechanism is used to adjust the pitch angle of the cradle; the azimuth transmission mechanism is used to adjust the circumferential azimuth of the cradle; the electromagnetic transmitter and the detection device are both mounted on the cradle; the detection device is used to detect the target position; the electromagnetic transmitter includes: a drive coil and a launch armature; the drive coil can drive the launch armature to displacement through electromagnetic induction; the launch armature and the load are arranged side by side for launching the load.

[0030] Furthermore, the launching turret also includes: a base and a turntable; the turntable is rotatably mounted on the base, and the azimuth transmission mechanism is used to drive the turntable to rotate circumferentially relative to the base; the cradle is mounted on the turntable via the pitch transmission mechanism, and the pitch transmission mechanism is used to drive the cradle to pitch; an anti-recoil device is provided on the cradle; the electromagnetic transmitter is slidably mounted on the cradle, and the electromagnetic transmitter is connected to the anti-recoil device.

[0031] Furthermore, the rocker arm includes: a rocker arm, an upper sleeve, a lower sleeve, a front sleeve, and a guide rail; the guide rail is fixedly installed on the inner side of the rocker arm; and the electromagnetic transmitter is slidably engaged with the guide rail.

[0032] The technical solution of this invention can achieve at least one of the following effects:

[0033] 1. The launch method of the electromagnetic launch system of the present invention, by fixing the detection device to the turret cradle and moving the detection device and the turret cradle synchronously, realizes the adjustment of the launch attitude and the detection of the target position. When the target position is accurately detected, the target position is accurately aimed at, thus ensuring the launch accuracy.

[0034] 2. In the axial direction of the electromagnetic transmitter, the present invention provides two sets of support components. A front support is provided on the guide section and a rear support is provided on the recoil section. The front and rear supports are used to slide with the guide rail. When the entire electromagnetic transmitter is subjected to recoil force, the support components can drive the transmitter to recoil and slide on the sliding plane of the guide rail. The recoil force is eliminated by the anti-recoil device, thus avoiding damage to the structure caused by the recoil force.

[0035] 3. The electromagnetic launch system of the present invention, by adjusting the pitch and azimuth transmission mechanisms of the launch turret, achieves target position tracking and response, thereby enabling precise and rapid launch of payloads (such as fire extinguishing projectiles).

[0036] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0037] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0038] Figure 1 This is the launching turret of the electromagnetic launching system of the present invention;

[0039] Figure 2 This is a side view of the electromagnetic launching system of the present invention;

[0040] Figure 3 A schematic diagram of the base structure of the launch turret;

[0041] Figure 4 The turntable for the launch turret;

[0042] Figure 5 For the pitch transmission mechanism of the launch turret;

[0043] Figure 6 For the orientation transmission mechanism of the launch turret;

[0044] Figure 7 Front view of the launch turret cradle;

[0045] Figure 8 for Figure 7 A cross-sectional view of the swing frame;

[0046] Figure 9 for Figure 7 Left view of the swing frame.

[0047] Figure 10 The electromagnetic transmitter of the electromagnetic launching system of the present invention;

[0048] Figure 11 This is the acceleration section of the electromagnetic transmitter;

[0049] Figure 12 A cross-sectional view of the acceleration section of the electromagnetic transmitter;

[0050] Figure 13 This is a schematic diagram of the electromagnetic transmitter's transmission principle.

[0051] Figure 14 It serves as the transmitting armature of the electromagnetic transmitter;

[0052] Figure 15 This is the recoil section of the electromagnetic transmitter;

[0053] Figure 16 This is a flowchart of the electromagnetic launch system.

[0054] Figure label:

[0055] 1-Base; 2-Turntable; 3-Pitch transmission mechanism; 4-Azimuth transmission mechanism; 5-Cyclist; 6-Electromagnetic transmitter; 7-Load;

[0056] 11-Base; 12-Buffer bracket; 13-Buffer; 14-Stiffener;

[0057] 21-Slewing bearing; 22-Support platform; 23-Outrigger; 24-Baffle; 25-Azimuth angle measuring assembly; 26-Pitch angle measuring assembly; 27-Cable mounting plate;

[0058] 31-Electric cylinder; 32-Upper support lug; 33-Lower support lug; 34-Positioning pin;

[0059] 41-Servo motor; 42-Reducer; 43-Pin gear; 44-Baffle;

[0060] 51-Rocker arm; 52-Upper sleeve; 53-Lower sleeve; 54-Front sleeve; 55-Upper support plate; 56-Lower support plate; 57-Guide rail; 58-Detection device; 59-Anti-recoil device; 521-Fixing hole;

[0061] 61-Guidance section; 62-Acceleration section; 63-Recoil section; 64-Positioning cylinder; 65-Landing sensor; 66-Transmitting armature;

[0062] 611-Front support;

[0063] 621-Front insulating retaining ring; 622-First fastening steel frame; 623-Rear insulating retaining ring; 624-Second fastening steel frame; 625-Drive coil; 626-Bolt assembly; 627-Cable connector; 628-Insulating pad;

[0064] 631 - Rear support; 632 - Rear seat connecting plate;

[0065] 661-Armature outer cylinder; 662-Armature bushing; 663-Armature retaining ring. Detailed Implementation

[0066] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0067] Example 1

[0068] A specific embodiment of the present invention discloses a launching method for an electromagnetic launching system, employing an electromagnetic launching system with target tracking function. The electromagnetic launching system includes: a launching turret, an electromagnetic launcher 6, and a detection device 58; as shown... Figure 1-15 As shown.

[0069] The launch turret includes a pitch transmission mechanism 3 and an azimuth transmission mechanism 4, which can adjust the azimuth and pitch angles of the launch turret's cradle 5.

[0070] The electromagnetic launcher 6 is mounted on the cradle 5 of the launch turret and can launch electromagnetically at the load 7, which can be a fire extinguishing bomb, smoke bomb, or explosive bomb.

[0071] The detection device 58 is fixedly mounted on the cradle 5.

[0072] The detection device 58 includes: a zoomable visible light camera, a fixed-focus visible light camera, an infrared camera, and a laser rangefinder; the zoomable visible light camera, the fixed-focus visible light camera, and the infrared camera are used to detect the target position, and the laser rangefinder is used to detect the distance between the target position and the launch point. After determining the target position, the launch speed of the load is then determined, enabling the load to be accurately launched to the target position.

[0073] The azimuth measuring assembly 25 and the elevation measuring assembly 26 are used; the detection device 58 is used to detect the target position, which can be the ignition point, explosion point, etc., depending on the actual needs. The azimuth measuring assembly 25 and the elevation measuring assembly 26 can monitor the azimuth and elevation angles of the cradle 5 in real time, thereby realizing the adjustment of the elevation and azimuth angles when the electromagnetic transmitter 6 launches the load.

[0074] like Figure 16 As shown, specifically, the launching method of the present invention includes the following steps:

[0075] Step S1: The launch turret adjusts its attitude, and the detection device 58 detects the target's position and distance;

[0076] Step S2: The launch turret continues to adjust its attitude based on the target position information detected by the detection device 58 to achieve target tracking and positioning;

[0077] Step S3: Electromagnetic transmitter 6 transmits the load.

[0078] In step S1, the specific method by which the detection device 58 detects the target position and distance is as follows:

[0079] Step S11: The launch turret adjusts the attitude of the cradle 5 through the pitch transmission mechanism 3 and the azimuth transmission mechanism 4, thereby changing the azimuth and pitch angles of the detection device 58 on the cradle 5.

[0080] Step S12: The cradle 5 maintains its attitude change until the target appears in the field of view of the zoomable visible light camera of the detection device 58; the target position detection is completed;

[0081] Step S13: The detection device 58 uses a laser rangefinder to detect the distance between the target position and the launch point.

[0082] In step S2, the target tracking and localization process is as follows:

[0083] Step S21: The detection device 58 controls the magnification of the zoom visible light camera to adjust the position of the target on the display screen;

[0084] Step S22: The launch turret adjusts its attitude according to the position information of the target detected by the detection device 58 to keep the target always in the display screen; when the zoom visible light camera is adjusted to the maximum magnification, the launch turret adjusts its attitude to center the target on the display screen;

[0085] Step S23: The laser rangefinder detects the distance between the target and the emission point; specifically, the laser rangefinder measures the target distance by taking multiple measurements, removing the highest and lowest values, and then taking the average value as the standard value of the distance between the target and the emission point.

[0086] By gradually increasing the magnification of the zoom visible light camera of the detection device 58, the target position is locked in step by step, thereby achieving target position tracking and determining the precise location of the target.

[0087] Furthermore, after determining the target location, based on the target location information measured by the detection device 58, the elevation angle, azimuth angle, and launch speed required for the electromagnetic launcher 6 to launch the fire extinguishing projectile 7 are calculated; furthermore, the cradle 5 is adjusted to the required elevation angle and azimuth angle for launch via the elevation transmission mechanism 3 and azimuth transmission mechanism 4 of the launch turret; the target location is aimed, and then the fire extinguishing projectile 7 is launched via the electromagnetic launcher 6.

[0088] In steps S1 and S2, the attitude adjustment method of the launch turret is as follows:

[0089] Step Q1: Adjust the pitch movement of the launch turret through the pitch transmission mechanism 3; specifically, the pitch transmission mechanism 3 controls the extension and retraction of the electric cylinder 31; thereby causing the rocker arm 5 to deflect at the pitch angle relative to the turntable 2.

[0090] Step Q2: Adjust the azimuth movement of the launch turret through the azimuth transmission mechanism 4; specifically, the azimuth transmission mechanism 4 outputs torque, thereby driving the turntable 2 of the launch turret to rotate relative to the base 1; when the turntable 2 rotates, it drives the rocker arm 5 and the electromagnetic transmitter 6 and detection device 58 installed on the rocker arm 5 to move synchronously.

[0091] Step Q3: When the pitch transmission mechanism 3 and the azimuth transmission mechanism 4 move, the pitch angle and azimuth angle of the cradle 5 are monitored in real time through the pitch angle measuring combination 26 and the azimuth angle measuring combination 25.

[0092] In step S3, the process of electromagnetic transmitter 6 transmitting load 7 is as follows:

[0093] Step S31: Load 7 into electromagnetic transmitter 6, so that load 7 is parallel to transmitting armature 66; and monitor whether load 7 is loaded in place by position sensor 65; when load 7 is loaded in place, transmitting armature 66 contacts position sensor 65 on positioning cylinder 64.

[0094] Step S32: After the drive coil 625 is energized, it generates electromagnetic induction with the transmitting armature 66, driving the transmitting armature 66 to move linearly relative to the drive coil 625.

[0095] Step S33: When the armature 66 is linearly displaced, it drives the load 7 to move synchronously, providing the load 7 with the initial velocity to launch the tube.

[0096] Step S34: After the load 7 is launched from the tube, the electromagnetic transmitter 6 moves backward relative to the cradle 5 under the action of recoil force; and the recoil force is buffered by the anti-recoil device 59.

[0097] Specifically, the following components are fixedly installed on the cradle 5: upper sleeve 52, lower sleeve 53, and guide rail 57; the electromagnetic transmitter 6 is provided with a front support 611 and a rear support 631; both the front support 611 and the rear support 631 are slidably engaged with the guide rail 57; the electromagnetic transmitter 6 is clamped and fixed between the upper sleeve 52 and the lower sleeve 53.

[0098] After the load 7 is launched from the tube, the electromagnetic transmitter 6 slides backward along the guide rail 57 under the action of recoil force. When the electromagnetic transmitter 6 moves backward, the recoil force is buffered by the anti-recoil device 57.

[0099] Furthermore, after the anti-recoil device 57 buffers the recoil force, it pushes the electromagnetic transmitter 6 to reset. Under the push of the anti-recoil device 57, the electromagnetic transmitter 6 slides along the guide rail 57 to the initial position; at the same time, the anti-recoil device 57 returns to its initial state.

[0100] Specifically, the anti-recoil device 57 is an elastic component, a damper, or a combination of an elastic component and a damper.

[0101] To achieve the above-mentioned launch method, the structure of the electromagnetic launch system of the present invention is shown in Figures 1-15.

[0102] The specific structure of each part is described below:

[0103] (1) Launch turret

[0104] In one specific embodiment of the present invention, the launch turret includes: a base 1, a turntable 2, a pitch transmission mechanism 3, an azimuth transmission mechanism 4, and a cradle 5. The turntable 2 is rotatably mounted on the base 1, and the azimuth transmission mechanism 4 drives the turntable 2 to rotate circumferentially relative to the base 1; the cradle 5 is mounted on the turntable 2 via the pitch transmission mechanism 3, and the pitch transmission mechanism 3 drives the cradle 5 to pitch; the cradle 5 is used to mount the launcher 6; an anti-recoil device 59 is provided on the cradle 5; the launcher 6 is slidably mounted on the cradle 5, and the launcher 6 is connected to the anti-recoil device 59.

[0105] like Figure 1-9 As shown, the turntable 2 is mounted above the base 1. The azimuth transmission mechanism 4 is fixedly connected to the turntable 2 by bolts. The rear sides of the cradle 5 are hinged to the two support arms 23 on the upper part of the turntable 2. One end of the pitch transmission mechanism 3 is hinged to the middle of the turntable 2, and the other end is hinged to the front of the cradle 5. The launcher 6 is connected to the cradle 5 via the guide rail 57 and the anti-recoil device 59.

[0106] In one specific embodiment of the present invention, the base 1 includes: a base 11, a buffer bracket 12, a buffer 13, and a stiffening plate 14; as shown Figure 3 As shown, the stiffening plate 14 is welded to the base 11, the buffer bracket 12 is bolted to the base 11, and the buffer 13 is fixedly connected to the buffer bracket 12 by a round nut. The main function of the base 1 is to provide an installation reference for the launching device, and it also has the function of azimuth buffering and stopping.

[0107] In one specific embodiment of the present invention, such as Figure 4 As shown, the turntable 2 includes: a turntable bearing 21, a support platform 22, a support arm 23, a baffle 24, an azimuth angle measuring assembly 25, a pitch angle measuring assembly 26, and a cable mounting plate 27. The turntable 2 serves to support the cradle 5 and also has the function of azimuth rotation.

[0108] Specifically, the support platform 22 is rotatably mounted on the base 1 via a slewing bearing 21; the lower surface of the slewing bearing 21 is bolted to the base 1, and the upper surface of the slewing bearing 21 is bolted to the support platform 22. The function of the slewing bearing 21 is to provide rotational support. Two left and right support arms 23 are located on either side of the circular support platform 22, and the support arms 23 are fixedly connected to the support platform 22 via bolts. The baffle 24 is fixedly connected to the support platform 22 via bolts. Figure 4 As shown, the baffle 24 has a semi-enclosed structure, with its lower end protruding from the lower surface of the turntable 2. When the turntable 2 rotates circumferentially, the baffle 24 can contact the buffer 13. The baffle 24 cooperates with the buffer 13 on the base 1 to achieve the purpose of azimuth rotation stop, increasing the safety of azimuth movement.

[0109] Specifically, the azimuth measuring assembly 25 is located at the left front of the turntable and is threadedly connected to the support platform 22. The azimuth measuring assembly 25 includes a measuring gear and an encoder. The measuring gear meshes with the turntable bearing 21, and the encoder is used to monitor the number of rotations of the measuring gear, thereby determining the rotation angle of the turntable bearing 21. Furthermore, the azimuth measuring assembly 25 acquires the rotation angle in real time and feeds it back to the control center to facilitate azimuth tracking of the target.

[0110] Specifically, the pitch angle measuring assembly 26 is installed at the hinge shaft hole between the support arm 23 and the rocker arm 51. The function of the pitch angle measuring assembly 26 is to acquire the pitch angle in real time and feed it back to the control center to facilitate target pitch tracking. The pitch angle measuring assembly 26 is an angle sensor used to monitor the pitch angle of the rocker arm 51. For example, the pitch angle measuring assembly 26 is an angle sensor used to monitor the angle change between the rocker arm 51 and the support arm 23.

[0111] The cable mounting plate 27 is used to connect the power cables of each component and the central controller.

[0112] In one specific embodiment of the present invention, such as Figure 5 As shown, the pitch transmission mechanism 3 includes: an electric cylinder 31, an upper support lug 32, a lower support lug 33, and a positioning pin 34.

[0113] Specifically, the upper support lug 32 is welded to the rocker arm 51 of the cradle 5, and the lower support lug 33 is welded and fixed to the support platform 22 of the turntable 2. One end of the electric cylinder 31 is rotatably connected to the upper support lug 32 via a positioning pin 34, and the other end is connected to the lower support lug 33 via a positioning pin 34. In this invention, the electric cylinder 31, the support arm 23, and the rocker arm 51 form a triangular structure. When the electric cylinder 31 extends or retracts, the electric cylinder 31 and the rocker arm 51 deflect synchronously. The extension and retraction of the electric cylinder 31 can realize the pitch movement of the cradle 5, thereby realizing the pitch movement of the launcher 6 and adjusting the launch angle.

[0114] One end of the rocker arm 51 is hinged to the electric cylinder 31, and the other end is hinged to the upper end of the support arm 23; when the electric cylinder 31 outputs linear displacement, the rocker arm 51 undergoes pitching motion.

[0115] In one specific embodiment of the present invention, such as Figure 6As shown, the orientation transmission mechanism 4 includes: a servo motor 41, a reducer 42, a pinion 43, and a cover 44.

[0116] Specifically, the servo motor 41 is used to output rotary motion. The reducer 42 is fixed to the support platform 22 by bolts. The output shaft of the servo motor 41 is fixedly connected to the input shaft of the reducer 42, and a pinion 43 is fixedly mounted on the output shaft end of the reducer 42.

[0117] Specifically, the pinion 43 meshes with the turntable bearing 21. A meshing gear ring is provided on the inner ring side of the turntable bearing 21, which can mesh and transmit power with the pinion 43. When the pinion 43 rotates, the inner ring of the turntable bearing 21 drives the support platform 22 to rotate synchronously. The rotation of the pinion 43 can drive the support platform 22 to rotate via the turntable bearing 21. The servo motor 41 is the power source for the azimuth movement of the transmitter 6; precise control of the azimuth movement of the transmitter 6 can be achieved by controlling the servo motor.

[0118] Furthermore, the rocker arm 51 is connected to the pitch transmission mechanism 3; it can pitch under the drive of the pitch transmission mechanism. The upper sleeve 52 and the lower sleeve 53 are both fixedly installed on the rocker arm 51, and the upper sleeve 52 and the lower sleeve 53 are symmetrically arranged; the transmitter 6 passes through the front sleeve 54 and is fixed between the upper sleeve 52 and the lower sleeve 53; and the transmitter 6 is slidably engaged with the guide rail 57.

[0119] In one specific embodiment of the present invention, such as Figure 7 , Figure 8 As shown, the cradle 5 includes: a rocker arm 51, an upper sleeve 52, a lower sleeve 53, a front sleeve 54, an upper support plate 55, a lower support plate 56, a guide rail 57, and a recoil mechanism 59. The function of the cradle 5 is to support the transmitter 6 and simultaneously withstand the recoil force generated by electromagnetic emission.

[0120] Specifically, the upper sleeve 52, lower sleeve 53, front sleeve 54, upper support plate 55, lower support plate 56, and guide rail are symmetrically distributed along the center line of the rocker arm 51.

[0121] Specifically, the lower sleeve 53 is located at the lower rear of the rocker arm 51, and the lower support plate 56 is located below the front of the rocker arm 51. The lower sleeve 53 and the lower support plate 56 are fixedly connected to the lower part of the rocker arm 51 by welding. The upper sleeve 52, the upper support plate 55, and the front sleeve 54 are sequentially fixed to the upper part of the rocker arm 51 from back to front by screw connections.

[0122] Specifically, such as Figure 9As shown, L-shaped guide rails 57 are welded to the inner side of rocker arms 51. There are four sections of guide rails 57, arranged in two sets on the rocker arms 51 on both sides, with two sections of guide rails 57 symmetrically arranged in each set. The four sections of guide rails 57, together with the upper sleeve 52 and the front sleeve 54, form a slide, allowing the launcher 6 to be clamped and fixed within the slide, and enabling the launcher to move within the slide under recoil.

[0123] In one specific embodiment of the present invention, the cradle 5 is further provided with a detection device 58.

[0124] Furthermore, the detection device 58 is bolted to the upper support plate 55. The function of the detection device 58 is to detect the target and feed the target back to the control system. The control system issues instructions based on the target data to drive the launch device to complete the launch mission.

[0125] (2) Electromagnetic transmitter

[0126] Electromagnetic launching devices, such as Figure 10 The diagram shows: a guidance section 61, an acceleration section 62, and a recoil section 63.

[0127] The acceleration section 62 includes: a drive coil 625, a reinforcing frame, and a transmitting armature 66; the reinforcing frame is disposed outside the drive coil 625; the transmitting armature 66 is disposed inside the drive coil 625, and the transmitting armature 66 is capable of linear displacement along the axis of the drive coil 625 under the action of the electromagnetic force generated by the drive coil 625; the transmitting armature 66 is used to provide the driving force for the load 8 to be launched; the guiding section 61 is used to guide the load 8 to the exit posture.

[0128] Guide Section 61:

[0129] Specifically, the guidance section includes a guide tube and a front support assembly 611. The guide tube is a cylindrical structure used to ensure the attitude of the load 7 (e.g., a fire extinguishing bomb) when it exits the tube. The guide tube is made of a high-strength non-metallic material to ensure that no induced eddy currents are generated in the guide tube under the strong magnetic field environment during launch. The front support 611 is a flat plate structure protruding from the guide tube and is fixedly connected to the guide tube. The front support 611 provides support for the entire electromagnetic launch device. To ensure strength, the support assembly is made of a metallic material. The guidance section 61 and the acceleration section 62 are connected by a flange, on which bolts and pins are installed for the connection.

[0130] Acceleration Segment 62:

[0131] Specifically, such as Figure 11 , Figure 12 As shown, the acceleration section 62 includes: a reinforcing frame, a drive coil 625, a cable connector 627, a positioning cylinder 64, and a positioning sensor 65.

[0132] The drive coil 625 has five stages, that is, five drive coils 625 are arranged in parallel to provide the driving force required for electromagnetic emission. Furthermore, cable connectors 627 are provided on the outside of the drive coils 625, with each stage of drive coil 625 having one cable connector 627. The cable connectors 627 are connected to the power supply via coaxial cables. Furthermore, insulation treatment should be applied at the cable connectors 627, and the number of cable connectors 627 corresponds to the number of drive coils 625.

[0133] Specifically, the reinforcing frame is used to radially constrain the drive coil 625.

[0134] Based on the emission principle of the drive coil, the drive coil 625 generates electromagnetic eddy currents, which drive the internal transmitting armature 66 to move along the axis of the drive coil 625 via electromagnetic force. The drive coil 625 is connected to a pulse capacitor, and the discharge of the capacitor in the control circuit is controlled by an independent trigger switch. The transient current flowing through the drive coil 625 induces a transient magnetic field in the inner cavity, which in turn induces eddy currents on the surface and inside the transmitting armature 66. Because the eddy currents are subjected to the Lorentz force in the changing magnetic field, the transmitting armature 66 gains forward acceleration, driving the load 8 to accelerate.

[0135] During launch, the drive coil 625 will be subjected to a large radially outward electromagnetic force. To constrain the drive coil 625 and prevent radial deformation, a stiffening frame with high rigidity and strength is required to fix it to the outside of the drive coil 625. To reduce induced eddy currents, the stiffening frame adopts a hollow frame structure, divided into two semi-circular first fastening steel ribs 622 and second fastening steel ribs 624, and the first fastening steel ribs 622 and second fastening steel ribs 624 are fastened together by bolt assembly 626.

[0136] The reinforcing frame includes: a front insulating retaining ring 621, a rear insulating retaining ring 623, a second fastening steel frame 624, and a bolt assembly 626; the first fastening steel frame 622 and the second fastening steel frame 624 are fastened together by the bolt assembly 626 and assembled into a ring-shaped steel frame; the front insulating retaining ring 621 and the rear insulating retaining ring 623 are respectively fixedly installed at both ends of the ring-shaped steel frame. Further, the front connecting flange 13 and the front insulating retaining ring 621 are connected to the ring-shaped steel frame by a first bolt, and the rear connecting flange and the rear insulating retaining ring 623 are connected to the ring-shaped steel frame by a second bolt.

[0137] Specifically, the front insulating retaining ring 621 and the rear insulating retaining ring 623 are used to position the two ends of the acceleration section 62. Furthermore, the front insulating retaining ring 621 and the rear insulating retaining ring 623 are made of insulating material to prevent the induced eddy currents generated on the reinforcing frame from being conducted to other metal structures on the electromagnetic launch device.

[0138] Specifically, an insulating pad 628 is provided between the first fastening steel frame 622 and the second fastening steel frame 624 to prevent electric creep.

[0139] Furthermore, the bolt assembly 626 includes: a bolt, a nut, a first insulating sleeve, and a second insulating sleeve; the bolt passes sequentially through the first fastening steel member 622, the second fastening steel member 624, and the insulating washer 628 to be fastened to the nut; the bolt head is covered by the first insulating sleeve; the nut is covered by the second insulating sleeve. By providing the insulating sleeve, the electrical conduction between the first fastening steel member 622 and the second fastening steel member 624 can be blocked, effectively reducing eddy current losses.

[0140] Specifically, the positioning cylinder 64 is located at the tail of the acceleration section 62, and its function is to limit the initial position of the load loading. The positioning cylinder 64 is made of non-metallic material, and the positioning cylinder 64 is threadedly connected to the rear insulating retaining ring 623, and is reinforced with thread-locking adhesive during assembly to ensure accurate initial axial positioning. Specifically, the positioning cylinder 64 is arranged side by side with the transmitting armature 66, and the positioning cylinder 64 is fixedly connected to the reinforcing frame.

[0141] Specifically, the positioning sensor 65 is mainly used to detect whether the payload is properly loaded, ensuring launch safety. For example... Figure 12 As shown, the load 7, positioning cylinder 64, and transmitting armature 66 are arranged side by side inside the drive coil 625. A positioning sensor 65 is installed at the end of the positioning cylinder 64 that contacts the transmitting armature 66; the positioning sensor 65 is used to monitor whether the load 8 is properly loaded. When the load 8 is properly loaded, the load 8 contacts one end of the transmitting armature 66, and the positioning sensor 65 contacts the other end of the transmitting armature 66.

[0142] like Figure 14 As shown, the transmitting armature 66 includes: an armature outer cylinder 661, an armature bushing 662, and an armature retaining ring 663; the armature bushing 662 and the armature retaining ring 663 are arranged side by side inside the armature outer cylinder 661. Specifically, the strength of the armature bushing 662 is greater than that of the armature outer cylinder 661, which is used to ensure the strength and rigidity of the transmitting armature 66. The conductivity of the armature outer cylinder 661 is greater than that of the armature bushing 662; this is used to ensure the electromagnetic induction of the transmitting armature 66, enabling it to move rapidly under the electromagnetic force of the drive coil 625.

[0143] Specifically, the armature retaining ring 663 is fixedly connected to the armature outer cylinder 661. An annular boss is provided on the inner side of the armature outer cylinder 661. The annular boss is used to limit the axial position of the armature bushing 662. The armature retaining ring 663 clamps the armature bushing 662 between the annular boss and the armature retaining ring 663.

[0144] Rear-seat section 63:

[0145] In one specific embodiment of the present invention, the electromagnetic transmitting device further includes a recoil section 63. For example... Figure 15 As shown, the recoil section 63 is provided with a recoil connecting plate 632 and a rear support 631. Specifically, the acceleration section 62 and the recoil section 63 are connected by a flange; the rear support 631 is a flat plate structure protruding from the main structure of the recoil section 63, and the rear support 631 overlaps the guide rail 57. The rear support 631 is used to support the entire electromagnetic launching device and slides relative to the guide rail 57 as the electromagnetic launching device recoils. The recoil section 63 is made of metal material and has reinforcing ribs arranged circumferentially to increase structural strength.

[0146] Specifically, the recoil connecting plate 632 is used to fix the electromagnetic launching device of the present invention to the anti-recoil device 59. The connection methods between the recoil connecting plate 632 and the anti-recoil device include: bolt connection, welding, bonding, etc.

[0147] In one specific embodiment of the present invention, the detection device 58 uses a camera to detect the target (fire source). Specifically, the detection device is rotated using a turret to bring the target into the field of view of the zoomable visible light camera. The laser rangefinder performs laser ranging multiple times consecutively. After removing the maximum and minimum values ​​from the five measurements, the three intermediate values ​​are averaged, and this average value is used as the target slant range, thereby completing the search and measurement of the target.

[0148] Compared with the prior art, the technical solution provided in this embodiment has at least one of the following beneficial effects:

[0149] 1. The transmitting armature 66 of the present invention adopts a split armature, wherein the strength of the armature bushing 662 is greater than that of the armature outer cylinder 661, which is used to ensure the strength and rigidity of the transmitting armature 66. The conductivity of the armature outer cylinder 661 is greater than that of the armature bushing 662; this is used to ensure the electromagnetic induction of the transmitting armature 66, enabling it to move rapidly under the electromagnetic force of the drive coil 625. This ensures both the structural strength of the armature and the electromagnetic induction effect of the armature, thereby providing a larger initial velocity for the load and realizing long-distance transmission.

[0150] 2. The present invention provides a front support 611 and a rear support 631 on the outside of the electromagnetic transmitter 6, and the two supports cooperate with the guide rail 57 on the launch turret to realize the recoil sliding during launch, and the recoil force is eliminated by the anti-recoil device 59.

[0151] 3. The launching method of the electromagnetic launching system of the present invention, wherein the electromagnetic launcher 6 is mounted on the launching turret, the launching turret realizes the adjustment of azimuth rotation and pitch angle, realizes continuous tracking of the target position, thereby ensuring accurate launching of the load 7 and realizing precise operation (fire extinguishing, fire fighting or blasting).

[0152] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for launching an electromagnetic launching system, characterized in that, Includes the following steps: Step S1: The launch turret adjusts its attitude, and the detection device detects the target's position and distance; Step S2: The launch turret continues to adjust its attitude based on the target position information detected by the detection device to achieve target tracking and positioning; Step S3: The electromagnetic transmitter launches the load; In step S2, the target tracking and positioning process is as follows: the detection device controls the magnification of the zoom visible light camera; the transmission turret adjusts its attitude according to the position information of the target detected by the detection device to keep the target always in the display screen; The target position is gradually locked by progressively increasing the magnification of the zoom visible light camera of the detection device; when the zoom visible light camera is adjusted to the maximum magnification, the turret adjusts its attitude to center the target on the display screen. Laser rangefinders detect the distance between the target and the firing point; The electromagnetic transmitter includes a drive coil and a transmitting armature; the transmitting armature includes an armature outer cylinder, an armature bushing, and an armature retaining ring; the armature bushing and the armature retaining ring are arranged side by side inside the armature outer cylinder; the strength of the armature bushing is greater than that of the armature outer cylinder; the conductivity of the armature outer cylinder is greater than that of the armature bushing; the armature retaining ring is fixedly connected to the armature outer cylinder; After the load is launched from the tube, the electromagnetic transmitter moves backward relative to the cradle under the action of recoil force. The cradle includes an upper sleeve, a lower sleeve, a front sleeve, a guide rail, and an anti-recoil device. The electromagnetic transmitter passes through the front sleeve and is fixed between the upper and lower sleeves. The guide rail cooperates with the upper and front sleeves to form a slide, so that the electromagnetic transmitter is clamped and fixed in the slide, and can move in the slide under the action of recoil force. The anti-recoil device is an elastic component, a damper, or a combination of an elastic component and a damper. The electromagnetic transmitter also includes a recoil section, on which a recoil connecting plate and a rear support are provided. The rear support overlaps the guide rail to support the entire electromagnetic transmitter and slides relative to the guide rail as the electromagnetic transmitter recoils. The electromagnetic transmitter moves backward and the recoil force is buffered by the anti-recoil device.

2. The launching method of the electromagnetic launching system according to claim 1, characterized in that, In step S1, the specific method by which the detection device detects the target position and distance is as follows: Step S11: The launching turret adjusts the attitude of the cradle through the pitch and azimuth transmission mechanisms, thereby changing the azimuth and pitch angles of the detection device on the cradle; Step S12: The cradle maintains its attitude change until the target appears in the field of view of the zoomable visible light camera of the detection device, completing the detection of the target position; Step S13: The detection device detects the distance between the target position and the launching point through a laser rangefinder; After the load is launched from the tube, the electromagnetic transmitter moves backward relative to the cradle under the action of recoil force; When the pitch and azimuth transmission mechanisms move, the pitch and azimuth angles of the cradle are monitored in real time through the combination of pitch and azimuth angle measurements.

3. The launching method of the electromagnetic launching system according to claim 2, characterized in that, The laser rangefinder measures the distance to the target by taking multiple measurements, removing the highest and lowest values, and then taking the average value as the standard distance between the target and the emission point.

4. The launching method of the electromagnetic launching system according to claim 3, characterized in that, In steps S1 and S2, the launch turret adjusts its pitch movement through a pitch transmission mechanism; the pitch transmission mechanism controls the extension and retraction of the electric cylinder; thereby causing the rocker arm to deflect at a pitch angle relative to the turntable.

5. The launching method of the electromagnetic launching system according to claim 4, characterized in that, In steps S1 and S2, the azimuth movement of the launch turret is adjusted by the azimuth transmission mechanism; the azimuth transmission mechanism outputs torque, which in turn drives the turntable of the launch turret to rotate relative to the base; when the turntable rotates, it drives the rocker arm and the electromagnetic transmitter and detection device installed on the rocker arm to move synchronously.

6. The launching method of the electromagnetic launching system according to claim 5, characterized in that, When the pitch and azimuth transmission mechanisms are in motion, the pitch and azimuth angles of the cradle are monitored in real time through a combination of pitch and azimuth angle measurements.

7. The launching method of the electromagnetic launching system according to claim 6, characterized in that, In step S3, the process of the electromagnetic transmitter transmitting the load is as follows: Step S31: Load the load into the electromagnetic transmitter so that the load and the transmitting armature are parallel; and monitor whether the load is loaded in place using a positioning sensor; when the load is loaded in place, the transmitting armature contacts the positioning sensor on the positioning cylinder; Step S32: After the drive coil is energized, it generates electromagnetic induction with the transmitting armature, driving the transmitting armature to a linear displacement relative to the drive coil; Step S33: When the transmitting armature is linearly displaced, it drives the load to move synchronously, providing the initial velocity for the load to be emitted from the tube.

8. The launching method of the electromagnetic launching system according to claim 1, characterized in that, The electromagnetic launch system includes: a launch turret, an electromagnetic transmitter, and a detection device; the launch turret includes: a pitch transmission mechanism, an azimuth transmission mechanism, and a cradle; the pitch transmission mechanism is used to adjust the pitch angle of the cradle; the azimuth transmission mechanism is used to adjust the circumferential azimuth of the cradle; the electromagnetic transmitter and the detection device are both mounted on the cradle; the detection device is used to detect the target position; the electromagnetic transmitter includes: a drive coil and a launch armature; the drive coil can drive the launch armature to displacement through electromagnetic induction; the launch armature and the load are arranged side by side for launching the load.

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