178results about "Electromagnetic launchers" patented technology

The present invention relates to a method for reconstructing the surface of an electromagnetic launch track, belonging to the technical field of electromagnetic track launch. The present invention uses the electromagnetic launch armature material and the track material as a friction pair, adopts a pin-on-disk friction device, and introduces an electric current to the friction pair in the pin-on-disk friction device; by changing at least one parameter among the magnitude of the electric current, the contact pressure of the friction pair, the friction speed, the friction time, and the arcing distance, the surface microstructure of the track material under the corresponding conditions is obtained; based on the surface microstructure obtained from the experiment, the surface structure of the electromagnetic launch track is reconstructed. The present invention realizes for the first time the accumulation of original data of topography reconstruction such as friction and wear on the surface of the track material, material transfer on the surface, and arc ablation on the surface, providing necessary conditions for the subsequent systematic reconstruction of the surface of the electromagnetic launch track. The method of the present invention is reasonable, the process is simple and controllable, the obtained data is true and reliable, and it is convenient for large-scale application.

The invention provides a low-altitude target netting system and method based on an electromagnetic ejection technology, and belongs to the field of aircraft control. The low-altitude target netting system comprises at least one aiming device, at least one electromagnetic launching device, at least one net bomb device and a control device, wherein each aiming device, each electromagnetic launching device and each net bomb device are respectively in communication connection with the control device; the control device is used for generating a control instruction for capturing a low-altitude target; the aiming device is used for identifying and tracking a low-altitude target to obtain position information of the low-altitude target, performing trajectory calculation in real time according to the position information, adjusting the posture of the electromagnetic launching device, and controlling launching of the electromagnetic launching device based on a control instruction; the electromagnetic launching device is used for launching the net bomb device through electromagnetic ejection; the net bomb device is used for capturing a low-altitude target. The capturing net is launched through the electromagnetic launching technology, the capturing range of the system can be effectively expanded, launching parameters can be adjusted in real time, and therefore the launching speed and the capturing rate can be effectively increased.

The invention provides a launch stage switchable electromagnetic gun system, which comprises a charging circuit module for converting low-voltage direct current into high-voltage direct current and charging an energy storage module; the energy storage module comprises a first-stage energy storage capacitor and a second-stage energy storage capacitor; the discharging module is used for discharging excess energy; the energy conversion and regulation module is used for realizing energy conversion between the primary energy storage capacitor and the secondary energy storage capacitor; the launching execution module is used for realizing the launching function of the electromagnetic gun by utilizing the energy in the energy storage module; and the control and monitoring module cooperates with the MCU (micro control unit) to realize switching among different states of the system. The energy of each stage of transmitting circuit can be controlled, the adjusting range is larger, the precision is higher, meanwhile, the secondary energy storage capacitor is fully utilized under single-stage transmitting, and the charging and discharging speed is increased.

The invention discloses a multi-stage electromagnetic railgun and a distributed energy injection system thereof, and relates to the technical field of electromagnetic railguns, the multi-stage electromagnetic railgun comprises an electromagnetic gun launching tube, a mounting plate is mounted at the bottom of the electromagnetic gun launching tube, a plurality of groups of isolation columns are mounted at the bottom of the mounting plate, and a circuit board is mounted at the bottom end of each isolation column; according to the multi-stage electromagnetic rail gun and the distributed energy injection system thereof, the distributed energy injection system composed of the main control module, the time sequence control and energy routing module and the distributed pulse forming module is combined with a plurality of independent magnet exciting coils wound in the axial direction of an electromagnetic gun launching tube in a segmented mode; accurate distribution and injection of energy according to a preset time sequence and a space sequence are realized. According to the system, marching type electromagnetic thrust waves can be formed in the electromagnetic gun launching tube, continuous and multi-stage acceleration is carried out on the armature, and therefore the outlet speed and launching efficiency of the projectile are remarkably improved, and meanwhile the controllability and energy utilization reasonability of the system are enhanced.

The present invention provides a modeling simulation and multi-field coupling analysis method for electromagnetic railgun system, comprising: for electromagnetic railgun, respectively building mathematical model of pulse shaping unit, mathematical model of armature impedance, mathematical model of rail and dynamic model of armature of electromagnetic railgun system; by using modularization method, forming simulation model of the electromagnetic railgun based on each built model; carrying out coupling simulation on current density and magnetic induction intensity distribution of the simulation model of the electromagnetic railgun, and analyzing coupling action and distribution characteristics of electromagnetic field in launching process of the electromagnetic railgun and influence of the electromagnetic field on temperature field distribution; based on the analysis result, determining positions where severe ablation appeared and electric contact arcing easily generated on the electromagnetic railgun, and carrying out preventive and maintenance measures.

The utility model provides a security emergency gun based on the electromagnetic ejection technology, the security emergency gun based on the electromagnetic ejection technology comprises a gun body, a measuring assembly and an ejection assembly, the bottom of the gun body is provided with a connecting pipe; the measuring assembly is arranged in the gun body. According to the security emergency gun based on the electromagnetic ejection technology, measured wind speed and target distance data are transmitted to the master controller in real time through the wind speed sensor and the infrared distance measuring mechanism, the master controller controls current through the voltage transformation mechanism after calculation and analysis, and under the action of the coil and the infrared geminate transistors, the target distance data are transmitted to the master controller in real time. The bullet can continuously accelerate to fly out of the coil, the intensity of the bullet is controlled by regulating and controlling the voltage, the hit rate is effectively increased through indication of infrared rays, a target is hit to make the target lose the action ability, and the device can be used for daily safety protection business, reduces casualties of security personnel and policemen when confronting a violence, and protects the life and property safety of people.

The invention discloses a magnetic field enhanced electromagnetic launching device for relieving Tokamak fracture, and belongs to the technical field of electromagnetic track launching. The invention designs a magnetic field enhanced track structure aiming at the problems of how to enhance the electromagnetic force of a projectile, improve the speed of an armature, separate the projectile from the armature and the like. Comprising an electromagnetic acceleration track and an electromagnetic deceleration track which are arranged in parallel, the structures of the electromagnetic acceleration track and the electromagnetic deceleration track are in mirror symmetry, and each of the electromagnetic acceleration track and the electromagnetic deceleration track comprises a reinforced track and a through track; a through rail of the electromagnetic acceleration rail makes contact with an armature and is used for launching the armature, an enhancing rail is used for enhancing the in-chamber magnetic field intensity and increasing armature stress, and electromagnetic force is used for propelling the armature carrying the projectile to reach the set speed. A through rail of the electromagnetic speed reduction rail makes contact with the armature and is used for generating reverse acceleration through electromagnetic force to act on the armature so that the armature can be decelerated, and the reinforcing rail is used for enhancing the in-chamber magnetic field intensity, increasing armature stress and enabling the armature to be separated from the projectile.

A method for operating an electromagnetic coilgun system, the method comprising: an electromagnetic coilgun comprising: a barrel and a longitudinally extended electrical excitation coil; wherein the electrical excitation coil circumferentially surrounds a bore of the barrel, energizing the electrical excitation coil to produce a steady-state magnetic field within and around the bore of the barrel, the steady-state magnetic field extending along a longitudinal axis of the barrel; loading the barrel with a magnetic dipole projectile at a breech end of the barrel, wherein the loaded magnetic dipole projectile is oriented with a first magnetic dipole moment aligned to a magnetic field orientation of the steady state magnetic field; and firing the magnetic dipole projectile by magnetically propelling the magnetic dipole along the longitudinal axis of the bore by a magnetic force produced by the steady-state magnetic field within and around the bore of the barrel.

The invention discloses an H-shaped armature of an electromagnetic rail gun, and belongs to the technical field of electromagnetic emission. The wind power generation device comprises a windward front surface, a windward curved surface, a windward inner surface, a top surface, a bottom surface, side surfaces, a leeward front surface, a leeward curved surface and a leeward inner surface, the graphene film is characterized in that both the top surface and the bottom surface are coated with graphene. According to the invention, the stability in electromagnetic emission is better, the emission efficiency can be effectively improved, and the graphene coating is coated on the surface of the armature in combination with the shape, so that the armature can reach a higher average speed and has a better arc ablation resistance effect, and the armature also has a certain lubrication effect; the conductive filler can be used as a good interface conductive filler to improve the contact state of a pivot rail interface. Therefore, the problems of'planing ', 'ablation', 'adhesion ', 'transition' and the like in the electromagnetic gun launching process are further improved.

The invention relates to development of an advanced 360-degree projectile launch helmet system, which can launch projectiles (which may be selected from bullets, pellets, tasers, lasers, etc.) from within the helmet without any collateral damage either to helmet or to the person wearing the same. The system can be voice or remote activated and cross counters any recoils that are generated because of the launch of the projectiles.

The utility model discloses a vehicle-mounted electromagnetic propulsion remote fire extinguishing device, which belongs to the technical field of fire fighting equipment and comprises a vehicle body with a chassis, and a plurality of support legs are distributed on the outer edge of the chassis; the supporting leg comprises a horizontal telescopic part and a vertical telescopic part, the horizontal telescopic part comprises an outer sliding barrel and an inner sliding barrel, and the inner sliding barrel is connected with a first driving assembly for driving the inner sliding barrel to move; the vertical telescopic part comprises a bottom foot, a ball head rotationally connected with the bottom foot is arranged on the bottom foot, the ball head is connected with a second driving assembly for driving the ball head to move, and the second driving assembly is fixed to the inner sliding barrel; the electromagnetic emission assembly, the pulse power supply and the generator are all arranged on the chassis; the pulse power supply is connected with the electromagnetic emission assembly. The generator is connected with the pulse power supply and the electromagnetic emission assembly. The chassis can bear the electromagnetic emission assembly, the pulse power supply and the generator, the pulse power supply and the generator guarantee that the electromagnetic emission assembly provides electric energy, the supporting legs can provide supporting force for the chassis, and recoil force can be stably borne.

The present application provides a magnetoresistive mover and a magnetoresistive cruise missile launcher. The magnetoresistive cruise missile launcher includes a barrel, a magnetoresistive mover, multiple coils, and multiple sensors. Through the arrangement of multiple soft magnets, during a launch process, the sensor detects the soft magnet multiple times, and the corresponding coil generates a constant magnetic field multiple times, applying electromagnetic attraction toward the launch end to the magnetoresistive mover multiple times, thereby shortening the launch device length and saving costs. By designing the length and distribution distance of each component, the sum of the length of the coil and the spacing length of adjacent coils is equal to the spacing length of adjacent soft magnets, which is equal to the sum of the lengths of all soft magnets. In this way, during the launch process, the magnetoresistive mover is continuously subjected to the electromagnetic attraction toward the launch end, so that the magnetoresistive mover continuously accelerates and pushes the cruise missile, avoiding multiple collisions and impacts on the cruise missile and reducing damage to the cruise missile.

The application discloses a high-overload-resistant heterogeneous integration structure of an inertial microsystem component, which comprises a bottom buffer shell and a top rubber pad arranged in a metal shell of the inertial microsystem component, and an internal cavity formed by the bottom buffer shell and the top rubber pad is used for accommodating an electronic system of the inertial microsystem component; in the application, the bottom surface of the bottom buffer shell is composed of a foamed metal buffer structure and a rubber damping structure, and the foamed metal buffer structure and the rubber damping structure are heterogeneously integrated in a mode that the rubber damping structure surrounds the outer surface of the foamed metal buffer structure. The heterogeneous integration structure of the rubber and the foamed metal realizes the high-overload-resistance and damping characteristics of the inertial microsystem component, and the assembly stability and reliability of the internal electronic system.

The present application provides a magnetic induction type mover and a magnetic induction type loitering munition launching device. The magnetic induction type loitering munition launching device includes a barrel, a magnetic induction type mover, a plurality of coils and a plurality of sensors. Through the arrangement of a plurality of magnetic induction bodies, during a single launch process, the sensors detect the magnetic induction bodies multiple times, the corresponding coils generate magnetic fields multiple times, and an electromagnetic repulsive force in the direction of the launch end is applied to the magnetic induction type mover multiple times, thereby reducing the length of the launching device and saving costs. Through the design of the lengths and distribution distances of each component, the sum of the length of the coil and the distance between adjacent coils is equal to the distance between adjacent magnetic induction bodies, so that during the launch process, the magnetic induction type mover can continuously receive an electromagnetic repulsive force in the direction of the launch end, continuously accelerating the magnetic induction type mover to push the loitering munition, avoiding multiple impacts on the loitering munition, and reducing the damage caused to the loitering munition.

A tail-finned projectile for an electromagnetic launching device, the projectile being launchable by the electromagnetic launching device and comprising a projectile body (1) and a tail fin (2), wherein the projectile body (1) comprises a ferromagnetic material; and the tail fin (2) is connected to the projectile body (1), and the tail fin (2) comprises fin blades (21) and a fixing structure (22), the fixing structure (22) being located circumferentially outside the fin blades (21) and being connected to the fin blades (21), and the fixing structure (22) being engageable with the electromagnetic launching device before the projectile is launched by the electromagnetic launching device. The projectile allows the tail fin (2) to be held by a snap to prevent disengagement, such that the flight is more stable, and the projectile body (1) is less prone to rust, reducing energy consumption during firing.

The invention discloses a material for an electromagnetic rail gun guide rail and a preparation method and application thereof, and belongs to the technical field of copper-based composite materials. The invention relates to a material for a guide rail of an electromagnetic rail gun. The material comprises a 5-20nm nano precipitated phase dispersed and distributed in a copper matrix; the MXene lamellas are continuously distributed on the grain boundary, and the nanometer MAX phase is distributed in the grain; and the nano precipitated phase, the MXene sheet layer and the nano MAX phase form a continuous reinforced network. The Cu-Ti-Be-Co alloy serves as a matrix, and unification of high strength and high conductivity is achieved through the synergistic effect of nanometer precipitated phase strengthening and MAX and MXene strengthening. The yield strength of the composite material reaches more than 700MPa and the conductivity is greater than or equal to 80% IACS (International Annealed Copper Standard) by regulating and controlling the interface combination of MAX and MXene with a matrix and the size and distribution of a nano precipitated phase, and the composite material is suitable for the fields of high-load electromagnetic guide rails, electromagnetic rail guns and the like.

The invention relates to a multi-source electromagnetic matrix aircraft take-off and landing system and a waste heat utilization and building integration method thereof, and belongs to the technical field of aircraft take-off and landing. The system comprises at least three electromagnetic emission units which are arranged in a space array, and each electromagnetic emission unit comprises an independent controllable excitation coil; the central controller is used for independently adjusting current parameters of each electromagnetic emission unit; the at least three electromagnetic emission units act together to form at least four independent and controllable electromagnetic stress action points in a predetermined space area. The system comprises a building facade integration system, a waste heat recovery system and a military application system (space debris cleaning and aerospace vehicle launching). The system has the multiple advantages of high control dimension, high magnetic field intensity, low cost, mobility, building embeddability, comprehensive energy utilization, military and civilian dual-purpose, military defense value and the like, and can be used as a general take-off and landing infrastructure in the fields of urban air traffic, military aviation, spaceflight launching, military defense and the like.

The invention discloses a bionic camouflage briefcase with an electromagnetic emission function, the bionic camouflage briefcase comprises an outer bionic structure, a middle layer and an inner layer structure, the outer bionic structure comprises a rotatable handle and a layered shell, and the handle is internally provided with a firing button, an emission mode selection button and a fingerprint unlocking device; the inner layer control area comprises a laser rapid aiming device; the middle layer comprises a pulse transmitting device and a pulse energy storage device, the pulse transmitting device is composed of multiple stages of Helmholtz coils in an array mode, the pulse energy storage device is composed of multiple pulse capacitors in an array mode, the pulse capacitors and the multiple stages of Helmholtz coils are connected in parallel to provide transient electric energy, and a transmitting tube is arranged on one side of each stage of Helmholtz coil; unification of camouflage and functionality is realized, the concealment is high, and the exposure risk is reduced; and a multiple safety control mechanism is adopted, so that false triggering and unauthorized use are prevented.

The invention belongs to the technical field of electromagnetic emission, and particularly relates to a bird body emission and separation device applied to a multistage electromagnetic coil. According to the technical scheme, the bird body launching and separating device applied to the multi-stage electromagnetic coil comprises an acceleration part gun barrel, a braking part gun barrel, a speed buffering part gun barrel, an impact-buffering structure and a magnetic induction cartridge case, and the acceleration part gun barrel, the braking part gun barrel and the speed buffering part gun barrel are sequentially connected together through flanges to form an integral gun barrel; the impact-buffering structure is installed at the end of the gun barrel of the speed buffering part, and the bird body is installed in the magnetic induction cartridge case and is launched and separated through the whole gun barrel. According to the bird body launching and separating device applied to the multistage electromagnetic coil, high-speed stable launching of the bird body can be achieved, and the bird body is safely separated from the sabot.

The invention relates to an electromagnetic driving device based on a staggered sheet structure spiral stepping motor, and belongs to the technical field of portable electromagnetic emitters. The shell, the motor stator and the emission structure are sequentially arranged from outside to inside, one end of the emission structure is provided with the head structure, and the shell and the motor stator jointly serve as a single-section pipeline of the electromagnetic driving device. According to the invention, the hybrid spiral stepping motor with the staggered sheet structure is creatively improved and is applied to the portable electromagnetic emitter; the spiral motor can enable the launching structure to rotate, the launching structure can carry objects such as a fire extinguishing device, and the shooting precision and distance are improved through rotation to improve the fire extinguishing efficiency.

A method for operating an electromagnetic coilgun system, the method comprising: an electromagnetic coilgun comprising: a barrel and a longitudinally extended electrical excitation coil; wherein the electrical excitation coil circumferentially surrounds a bore of the barrel, energizing the electrical excitation coil to produce a steady-state magnetic field within and around the bore of the barrel, the steady-state magnetic field extending along a longitudinal axis of the barrel; loading the barrel with a magnetic dipole projectile at a breech end of the barrel, wherein the loaded magnetic dipole projectile is oriented with a first magnetic dipole moment aligned to a magnetic field orientation of the steady state magnetic field; and firing the magnetic dipole projectile by magnetically propelling the magnetic dipole along the longitudinal axis of the bore by a magnetic force produced by the steady-state magnetic field within and around the bore of the barrel.

The invention discloses a self-powered emitter structure for emission of an electromagnetic reconnection gun, relates to the technical field of electromagnetic emission, and aims to solve the problems that a solid / winding type emitter of an existing reconnection gun is prone to uneven eddy current, weak in through-flow, insufficient in thrust, speed and emission efficiency and limited in emission range, and a novel self-powered emitter structure is provided. Comprising a battery module, a rectifying circuit module, an energy storage transmitting circuit module, a high-voltage direct-current voltage limiting circuit module, an acquisition module, a control module and a metal shell, the control module is electrically connected with the acquisition module, the battery module, the rectifying circuit module, the energy storage transmitting circuit module and the high-voltage direct-current voltage limiting circuit module respectively to form an integrated circuit module; controllable high shooting speed, high shooting efficiency, ultra-long range and continuous shooting can be better achieved, the structure is simple and more compact, and safety is good.

The present application provides an open reluctance cruise missile launcher, comprising a mounting frame, an electromagnet group disposed in the mounting frame, and a reluctance mover disposed in the electromagnet group. The launcher adopts the principle of electromagnetic induction for launch, and the cruise missile is pushed by the reluctance mover, which is disposed in the electromagnet group, which is disposed in the mounting frame. The mounting frame is an open structure, and is provided with multiple external air channels. The electromagnet group is an open structure, and is composed of multiple electromagnets and a number of guide rods. Internal air channels are formed between adjacent electromagnets. The air inside and outside the launcher can be quickly circulated through the multiple internal air channels and the multiple external air channels, which can effectively reduce the air resistance encountered by the cruise missile during launch, and can obtain the required muzzle velocity in a very short time. In addition, the noise during launch is greatly reduced, and the concealment is improved.

The present invention provides a dynamic acoustic emission in-situ testing device and method for an electromagnetic rail launcher. The device comprises an armature, a guide rail and a support base, wherein the support base comprises an upper support base and a lower support base which are opposite to each other and are vertically arranged, a distance between the upper support base and the lower support base can be adjusted through bolts, the guide rail is vertically arranged between the upper support base and the lower support base, the armature is clamped in the guide rail, a plurality of groups of static acoustic emission sensors are arranged along the guide rail, a dynamic acoustic emission sensor is arranged on the armature. The method can comprehensively reveal the current-carrying friction damage mechanism of the armature-rail interface under the variable magnetic field intensity condition.

The invention discloses a multi-turn driven electromagnetic track launcher which comprises a positive guide rail, a plurality of upper switching guide rails, a negative guide rail, a plurality of lower switching guide rails, a thrust assembly and a breech feed device. The thrust assembly is provided with an armature, the armature is provided with a plurality of armature strips corresponding to the positive guide rail, the upper switching guide rail, the negative guide rail and the lower switching guide rail, and the armature strips are in sliding contact with the rail surfaces of the positive guide rail, the upper switching guide rail, the negative guide rail and the lower switching guide rail for electric conduction; the breech feed device is provided with a switching copper bar, and the two ends of the switching copper bar are used for making contact with the end of the upper switching guide rail and the end of the lower switching guide rail for electric conduction. By arranging the guide rail mechanism composed of the positive electrode guide rail, the multiple upper switching guide rails, the negative electrode guide rail and the multiple lower switching guide rails and the transmitting mechanism composed of the multiple armatures, the inductance gradient of the transmitter can be greatly improved, and higher transmitting kinetic energy is achieved under the condition that the current amplitude does not need to be increased.

The present invention relates to the field of slide brake technology, and more specifically, to a slide brake and a linear motor ejector. The slide brake comprises a slider having insertion portions on its left and right sides, a mounting hole within the slider, an opening on at least one end face of the insertion portion, a top block, an elastic member, and a friction block within the mounting hole, the end face of the friction block being exposed outside the insertion portion for frictional contact with the wall of a slide guide rail groove; an adjusting screw is threadedly connected to the slider, and the end of the adjusting screw and the top block are engaged by a push-fit structure, so that when the adjusting screw is screwed into the slider, the top block is pushed outward, thereby compressing the elastic member to elastically press the end face of the friction block against the wall of the slide guide rail groove. The slide brake of the present invention is flexible to install, regardless of up and down or left and right. The insertion portions on both sides can be aligned with the guide rail groove and inserted, making installation convenient. At the same time, by simply adjusting the screw-in amount of the adjusting screw, the braking force can be steplessly adjusted within a certain range, thus achieving strong adaptability.

The Hyper-Magnetic Matter Accelerator comprises an apparatus and method of a plurality of basin-formed electromagnetic field generators as well as rotational electromagnetic field generators mounted in series to a conduit; energized in sequence for ferrous matter or projectile acceleration to, but not limited to or by high-hypersonic velocity and rotation for trajectory stabilization accuracy. Velocity control may be implemented through the use of various power levels as well as configuration by one skilled in the art based on said artisan's intended velocity objective.

This invention provides a UAV defense and interception system, including a launching unit and a capture unit. The capture unit includes a ferromagnetic projectile, and the launching unit includes a housing. Inside the housing is a cannon barrel and a circuit circuit composed of n acceleration coils, n touch switches, n energy storage capacitors, n timing controllers, n power distribution diodes, and multiple power continuation diodes. Each acceleration coil also has a front sensor and a rear sensor at its front and rear ends, respectively. Using the technical solution of this invention, the timing controller controls the activation or deactivation of the acceleration coils. When the ferromagnetic projectile is in the transition phase between two adjacent acceleration coil stages, the preceding acceleration coil is de-energized in time, avoiding the electromagnetic force generated by the preceding acceleration coil from causing a reverse pull effect on the ferromagnetic projectile and preventing deceleration. This allows the ferromagnetic projectile to continuously accelerate, resulting in advantages such as a large interception range, long interception distance, high interception accuracy, and easy deployment of the interception net in the air.

The utility model provides a gun hanging type catching net launcher and relates to the field of launcher machining, the section of a baffle assembly is of a circular structure, an ejector pin assembly is fixedly connected to the center position of the left end face of the baffle assembly, and the left side of the ejector pin assembly is of a sharp structure. The problems that patrol personnel cannot carry all weapons in the patrol process due to the fact that the border defense line is long, and if a traditional launcher is carried and one weapon position is occupied, carrying of other weapons by the border defense personnel is affected, and patrol safety is affected are solved. Different from a traditional launcher which is similar to a small rifle in appearance and needs to occupy a weapon position independently, the launcher of the gun hanging type catching net is installed on the gun body through the guide rail mechanism, the weapon carrying position does not need to be additionally occupied, frontier defense patrol personnel can carry more other necessary weapons, and the patrol safety is effectively improved.