75 results about "Fuze" patented technology

The invention relates to a high-safety intelligent fuze module, which comprises a main control chip, and a first static switch and a second static switch which are connected with the main control chip, the first static switch and the second static switch are connected with the booster circuit; the main control chip is used for identifying and processing the environment signal captured by the sensor and sending a control signal to the first static switch and the second static switch, so that the booster circuit realizes grounding and power connection operations; the first static switch is switched on when the main control chip outputs the low level, so that the first static switch is electrically connected with the ground; and the second static switch is switched on when the main control chip outputs the high level, so that the second static switch is electrically connected with the power supply module. According to the fuze safety protection device, the safety release switches are controlled through the sensors, and the independent sensors accurately control the respective safety release switches, so that organic combination of multiple safety protection mechanisms is realized, and the safety of the fuze is greatly improved. And meanwhile, the modular design is convenient for troubleshooting and replacement, and the maintenance cost is reduced.

According to the present disclosure, there is provided a fuze system for attaching to a munition body, the fuze system comprising: a body comprising a foremost section; a fuze located in the body; a power generator, attached to the body, for generating electrical power and providing it to the fuze system, the power generator configured to generate electrical power by interacting with an airstream around the fuze system, wherein at least a part of the power generator is located behind the foremost section, the at least a part of the power generator being arranged to rotate relative to the foremost section of the body.

The invention belongs to the technical field of deep underground target penetration, and particularly relates to an energy gathering / kinetic energy series penetration structural body which comprises a charging shell, the front end of the charging shell is provided with an opening, a shaped charge liner is arranged at the opening of the front end of the charging shell in an adhesive mode, the rear end of the charging shell is fixedly connected with a rear-stage connecting part, and the rear-stage connecting part is fixedly connected with the charging shell. The rear end of the rear-stage connecting part is connected with a rear-stage main projectile body, a charging buffer layer is arranged at the front end of an inner cavity of the rear-stage main projectile body, a rear-stage fuze is installed at the rear end of the rear-stage main projectile body, and the charging shell and the rear-stage main projectile body are both filled with gunpowder. Wide-speed-range penetration is achieved through the series connection structure, the rear-stage connecting part extends into the charging shell to be in threaded connection with the charging shell, the rear-stage connecting part is protected against damage by utilizing three-direction pressure stress generated by explosive detonation, meanwhile, the length of the rear-stage connecting part can be adjusted, the rear-stage connecting part is used for protecting a penetration projectile body structure under the condition of different penetration target-hitting speeds, and the penetration target-hitting speed is improved. And therefore, the purpose of increasing the penetration power is achieved.

The technology subject of the present application generally concerns a mechanical percussion fuze having a mechanism involving at least two independent safety features. The two independent physical features operate in different environments to prevent accidental detonation of an explosive device implementing the fuze of the invention. Each safety feature has an Armed state and a Safe state. Each of the safety features must be mechanically changed from the safe state to the armed state within a predetermined period of time for the explosive device to be armed and ready to detonate upon impact.

The utility model relates to a disassembling device suitable for fuses in a combat cabin, and belongs to the technical field of mechanical assembling and disassembling. Comprising a left clamping plate, a right clamping plate, a connecting screw, a torsion spring and a handle, the left clamping plate is of an open semi-cylindrical structure, an annular cone structure is arranged along the cylindrical bottom, and the tip of the cone points to the center and is used for reliably clamping a fuse; a vertical plate-shaped body is upwards arranged along the top of the cylinder, two transverse U-shaped plate-shaped bosses are arranged along the bottom of the plate-shaped body at a certain distance, the bosses are perpendicular to the plate-shaped body, and two bosses for placing a right clamping plate are arranged between the two bosses; small holes are formed in the two transverse U-shaped plate-shaped bosses, the two small holes are concentric, the small hole in one side is a through hole, and the small hole in the other side is a threaded hole and used for containing a connecting screw rod; the handle clamping device has the advantages that the cost is low, the efficiency is high, the quality is high, and the practicability and the generalization performance are better.

The invention relates to a method for avoiding common cause failure of a fuse insurance releasing device, belongs to the field of fuse insurance releasing device control, and solves the problem of common cause failure of a three-level insurance unit in the prior art. Comprising the following steps: a de-protection state feedback circuit feeds back a primary de-protection completion signal and a secondary de-protection completion signal to a master controller and a slave controller; the master controller sends a first state confirmation signal to the slave controller based on the first-stage insurance releasing completion signal and the second-stage insurance releasing completion signal; the slave controller opens a third-level unlocking software lock based on the first state confirmation signal, the first-level unlocking completion signal and the second-level unlocking completion signal; the hardware booster circuit feeds back a three-level de-protection completion signal to the master controller and the slave controller; the master controller sends a second state confirmation signal to the slave controller based on the third-level solution protection completion signal; and the slave controller opens the detonating software lock based on the second state confirmation signal and the three-level unlocking completion signal. And the high-safety fuze insurance releasing method is realized.

The invention discloses a device for dismantling a buried underwater unexploded ordnance, the device works based on an underwater robot, the device is composed of a shell, a connecting port, a sensor, a driving rod, a protection releasing element, a small motor, a telescopic rod, a shaped charge, a magnetic detection device, a telescopic sleeve and a supporting plate, and the shape of the buried unexploded ordnance is detected through the magnetic detection device; an explosive ordnance disposal scheme is determined after information is transmitted to the water operation platform, the telescopic rod controls the telescopic sleeve to ensure the position relation between the shaped charge and the unexploded ammunition, and the shaped charge is provided with an intelligent fuze which can be detonated after the robot is away from the unexploded ammunition. The device for destroying and burying the underwater unexploded ordnance has the advantage that the position relation between the shaped charge and the unexploded ordnance is fixed through the telescopic sleeve, the shaped charge can be accurately detonated, the unexploded ordnance can be detonated, the effect of accurately destroying and burying the underwater unexploded ordnance is achieved, meanwhile, the device can be produced in batches, and high economic benefits are achieved.

1. Name of the product in this design: Teaching aid (landmine model fuse). 2. Purpose of this design: A landmine model fuse teaching aid for educational use. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to a pressure relief device, belongs to the technical field of safety, and solves the problems that the mechanical property of a containing part is damaged due to pressure relief of an existing device for containing explosives, and the maintenance cost is high. The pressure relief device is arranged at a closing-up part of an explosive containing part, is communicated with the explosive containing part and a fuze, and comprises a shell assembly, a pressure relief hole, a bracket and a wafer assembly, the shell assembly comprises a shell outer layer assembly, a shell interlayer part and a shell inner layer part; the thermal expansion coefficient of the material of the shell interlayer component is greater than that of the material of the shell inner layer component; the pressure relief holes comprise a first pressure relief hole and a second pressure relief hole; the first pressure relief hole is formed in the side wall of the shell assembly, and the second pressure relief hole is formed in the bottom of the shell assembly. The pressure relief device is independently arranged, so that the original design strength of the explosive containing part is not damaged, the maintenance cost is reduced, and double pressure relief can be realized.

The invention discloses a method for selecting a weak environment information active sensitive device of a patrolling ammunition fuze, which comprises the following steps of: selecting a function, calculating scores, and selecting an active sensitive device with the highest score to detect weak environment information; the selection principle comprises the measurement precision, the installation performance, the frequency response range, the detection sensitivity and the linearity of the active sensitive device and the measurement precision under the change of natural environmental factors. According to the method, the patrolling ammunition fuze can select the active sensitive device with the optimal performance to sensitize the environment characteristics according to the weak environment information available in the outer trajectory flight, so that fuze researchers do not need to select the sensitive device depending on experience, trial and error are avoided, the fuze research and development period is shortened, and the process cost is reduced; and the fuze can be reliably sensitive to weak environment information.

The application discloses a high-safety delay grenade fuze, mainly composed of a fuze body, a sliding block seat, a pressing screw, a delay tube, a firing mechanism, a safety and release isolation mechanism, a transmission explosion sequence and an observation window. The firing mechanism is a plate hammer type structure driven by a torsion spring, located at the upper part of the fuze; the safety and release isolation mechanism mainly comprises an explosion isolation mechanism, a redundant safety mechanism and a delay release explosion isolation mechanism, arranged in the inner cavity of the fuze; the observation window is arranged on the outer contour of the middle part of the fuze body, used for observing the position of the explosion isolation member. The explosion isolation mechanism is a spring-driven sliding block mechanism; the redundant safety mechanism indirectly or directly implements safety on the sliding block through two safety pins and a handle piece and a safety lever, and the safety is released through different manual actions; the delay release explosion isolation mechanism is realized by the delay tube and the memory alloy safety spring. The fuze meets the relevant requirements of GJB 3194-1998 'Safety Design Guidelines for Manually Laid Weapons', and has the advantages of compact structure and low cost.

The present invention discloses a dual-path, bidirectional inertial ignition air-burst fuze for small-caliber artillery projectiles, comprising an upper body, a main body, a safety and release explosion-proof mechanism, a delay body, a cover plate, a detonator tube, a first delay tube, a second delay tube, two percussion caps, two needle percussion caps, two springs, and two firing pins. It adopts dual-path redundant bidirectional inertial ignition and is provided with two delay tubes of different sizes in the fuze, thereby avoiding misfires of the fuze due to common cause failure as much as possible, while reducing the delay time dispersion and improving the timing accuracy of air-burst. The firing pin is not fixed and can rush forward to fire when the projectile hits the ground, thereby improving the comprehensive firing rate and reducing unexploded ammunition. The lower end structure of the delay body corresponding to the dual-path inertial ignition mechanism is closed, which is conducive to preventing crossfire and thus preventing ballistic explosion. The firing pin is of the same mass as or slightly heavier than the percussion cap component, thereby achieving safe landing and high performance optimization.

The application discloses a safety identification structure of a blind fire state of a fuse, and is based on a traditional fuse structure (including a first explosion element, a body and a safety release mechanism). A radial safety identification channel which is connected to a transmission channel / blast channel in a cavity of the fuse is opened on an outer contour surface of the fuse body. A flame detonator, a diaphragm and a spiral are arranged in the radial safety identification channel. The safety state of the blind fire fuse can be determined by observing whether there are traces caused by predetermined internal explosion on the diaphragm and the spiral. Accordingly, corresponding methods can be adopted to deal with unexploded ammunition, so that the explosive processing procedure of the unexploded ammunition is simplified, the efficiency is improved, and the cost is reduced under the premise of ensuring safety. The structure of the application is simple, and the general layout and structure of the existing fuse are slightly changed. The application does not need to increase the occupied space, has strong universality, is suitable for various fuses, and is good in productivity.

The application includes a method for arming a fuze on a UAV, a warhead is arranged on a UAV including at least one pair of foldable arms, a fuze arming pin connected by a compression spring is arranged on the warhead, an arming device is arranged between the warhead and the foldable arms, one end of the arming device is connected to the foldable arms, and the other end is capable of abutting against the fuze arming pin, the foldable arms are folded, the foldable arms drive the arming device to abut against the fuze and compress the compression spring, the fuze arming pin is retracted into the warhead, and the fuze is in an armed state, the foldable arms are unfolded, the foldable arms drive the arming device to separate from the fuze, the fuze arming pin is ejected from the warhead under the action of the compression spring, and the fuze is armed. The application also includes a fuze arming device and a UAV including the fuze arming device. The application can quickly and effectively arm a fuze on a UAV.

This invention discloses a finite element method and apparatus for a refined distributed projectile-guided system. The method constructs simulation models of the projectile body and target plate. The projectile model consists of three propellant charges, two propellant separators positioned between adjacent charges, a fuze holder mounted at the bottom of the projectile, and an outer shell. A sensor is installed in each of the two propellant separators, and a sensor is installed in each base fuze within the fuze holder. Finite element simulation of the penetration process is performed, and acceleration time history curves from sensors located at the projectile tip, mid-projectile, and base are collected. The signals from the three sensors are cross-correlated and filtered to obtain acceleration time history curves decoupled from stress wave aliasing. This invention can reproduce the actual projectile-guided system structure, supports distributed sensor arrangement, and, with the aid of signal processing algorithms, can solve signal aliasing and noise interference problems, achieving high-precision overload signal acquisition.

The present invention discloses a safe, medium-caliber explosive cartridge with a warhead mechanically triggered fuze. The cartridge consists of an explosive cartridge and a warhead mechanically triggered fuze disposed within the cartridge. The cartridge is divided into a head ignition module, a middle safety control and initiation module, and a tail explosive charge module. The head ignition module comprises the upper portion of the warhead case, the upper portion of the fuze body, paraffin wax, and a needle percussion cap. The fuze body is the primary structural component, housing the safety control and initiation module and connecting the head ignition module and the tail explosive charge module. The safety control and initiation module comprises the middle portion of the warhead case, the lower portion of the fuze body, an isolation ball, an open ring, a ball seat, a first reinforcement cap, a booster tube case, a booster charge, a recoil safety ring, and a flame detonator. The tail explosive charge module comprises the lower portion of the warhead case, a second reinforcement cap, an explosive charge, the projectile body, and a lead sleeve. The fuze utilizes a ball rotor mechanism for both explosion-proofing and delayed release, and redundant safety mechanisms are provided by an open ring centrifugal safety mechanism and a safety ring recoil safety mechanism.

The utility model discloses a multi-purpose fuze device that can self-destruct, including base, elasticity device, moving part, battery, protective shell and insurance subassembly, the elasticity device is provided on the outer surface of base, the one end of moving part is the front end, the battery is provided in the groove of base rear end, the protective shell is equipped with the protective shell, the insurance subassembly is equipped with the protective shell, and the protective shell is equipped with the protective shell. The protective shell is arranged outside the base, and a safety assembly is arranged on the outer surface of the protective shell; the elastic device, the movable part and the battery are arranged on the base, and the safety assembly is arranged on the protective shell, so that when the movable part is triggered in a sliding manner, the safety assembly is used for controlling the connection of the battery electrodes; the fuse device can be used as a pressure-firing fuse, a pressure-loosening fuse, a pressure-loosening dual-purpose fuse, a pull-firing fuse, a pull-loosening fuse and a pull-loosening dual-purpose fuse according to different requirements, can also be used as a wired electric exploder, solves the problem that a traditional fuse device cannot meet various scene requirements and is arranged, and has the advantage of no permanent damage threat.

The invention provides an identification circuit of a fuze system triggering device, which relates to the field of missiles, rocket projectiles and bombs and comprises a collision-explosion switch identification circuit and an inertia switch identification circuit. The touch and explosion switch identification circuit comprises a first energy storage unit, a first logic control unit, a first switch state diagnosis unit and a first signal output unit; the first energy storage unit passes through the first logic control unit, the first switch state diagnosis unit and the first signal output unit; the inertia switch identification circuit comprises a second energy storage unit, a second logic control unit, a second switch state diagnosis unit and a second signal output unit; the second energy storage unit is connected with the second switch state diagnosis unit and the second signal output unit through the second logic control unit. The device has high reliability, quickly and accurately responds to the state change of the device, and reliably outputs a detonation signal. The system is high in safety, and has the capability of self-diagnosis of the health state of the trigger device. And the safety performance of the fuze is greatly improved.

The present invention relates to the field of mining machinery technology, and in particular to explosive excavation devices, specifically an explosive overburden hole-opening and serially advancing pit-digger, comprising a first cabin, a second cabin, a third cabin, and a fourth cabin connected in sequence from front to back. The first cabin has a first explosion-proof device at the rear end thereof, and the first cabin has overburden hole-digger explosives and a first fuze inside. The second cabin has a charge liner, a shaped charge, and a shaped charge fuze inside. The third cabin has a second explosion-proof device inside. The fourth cabin has a follow-up projectile. The present invention is composed of four cabins, which allows sufficient space for the multi-stage shaped charge to form, and the follow-up projectile of the subsequent stage is not affected by the detonation of the previous stage. The present invention combines the characteristics of the projectile penetrating the overburden and rock mass to achieve continuous operations of opening holes in the overburden and blasting and digging holes in the rock mass, ultimately achieving efficient penetration of the rock mass and implementing blasting and digging holes.

A bomb fuze initiator equipped with a cap configured to open after bomb release, a device for detecting bomb release, a device for determining bomb speed, an integrated proximity sensor and a fuze connector intended to connect the fuze initiator to a bomb fuze, the integrated proximity sensor comprising: a transceiver of electromagnetic waves comprising an HF antenna and an HF circuit or comprising an IR source and a photodetector, and a transmission link configured to transmit the signal delivered by the transceiver of electromagnetic waves.

The invention belongs to the technical field of micro-electromechanical, and discloses an MEMS (micro-electromechanical system) fuze safety and relief device and a working method thereof. A frame sliding groove is formed in the middle of the security frame, and the medicine cavity sliding block is arranged in the frame sliding groove in a sliding mode. A cantilever beam moving cavity is formed in the security frame, and the recoil safety mechanism is arranged in the cantilever beam moving cavity; the recoil safety mechanism comprises a recoil cantilever beam and a recoil spring; the fixed end of the recoil cantilever beam is connected with the inner wall of the cantilever beam movable cavity; the free end of the recoil cantilever beam can move in the direction of the elastic shaft to achieve combination and separation with the medicine cavity sliding block. The recoil spring is arranged between the free end of the recoil cantilever beam and the inner wall of the cantilever beam moving cavity; wherein the axis of the recoil spring is parallel to the direction of the elastic shaft; according to the invention, the stress concentration phenomenon of the fixed end of the recoil cantilever beam is obviously reduced, so that the high overload adaptability of the safety mechanism in the fuze is effectively improved, and the reliability of the fuze in an extreme environment is ensured.

A method of airburst fuze configuration by which airburst capability may be retrofitted to existing weapons systems or munitions or configured for new ones. The system consists of a nose or mid-body fuze package for a host projectile, incorporating a rear-looking optical sensor system, which will periscope outwards to establish a rearwards line of sight. The fuze package is to be used with a separate and retained detonation control system which performs fire control calculations and transmits an optical signal at the time airbursting is desired, which subsequently prompts the rear-looking optical sensor to trigger the payload of the host projectile.

The application relates to a general artillery shell ejection and bore comprehensive detection device, which comprises a basic module and a functional module; the basic module comprises a rotating unit, a braking unit, a battery unit and a power unit; the functional module comprises a fuze rotating ejection unit, an ejection unit and / or a bore peeping unit; the rotating unit is used for splicing with the functional module and is also used for providing rotating power for the functional module; the braking unit is used for providing a braking function; the power unit is used for providing a moving function; the battery unit is used for power supply; the fuze rotating ejection unit is used for separating a fuze from a shell; the ejection unit is used for pushing the shell away from a bore; and the bore peeping unit is used for providing a bore peeping function. The general artillery shell ejection and bore comprehensive detection device can provide walking, braking and rotating functions through the basic module; different functional modules provide different functions; the functional modules are spliced on the main structure to realize the functions of rotating fuze, ejection and bore peeping; and the artillery maintenance and support requirements are met.

This invention discloses a fuze target matching and adaptive detonation height control method, belonging to the field of fuze electronic countermeasures technology. The implementation method of this invention is as follows: The relative velocity is obtained based on detection information, and then the optimal activation delay τ is calculated based on the target's two-dimensional image. opt Optimal startup delay τ opt The goal is to minimize the total detonation deviation of each surface element of the target. Combining the near-field two-dimensional imaging results of the target with the fuze's target, the target centroid is estimated by weighting the grayscale of the near-field extended target's two-dimensional image, and the detonation height is designed based on the target centroid. A convolutional neural network for target matching and recognition is constructed. Based on the probability of target classification output by the convolutional network, a fuze detonation height decision risk factor is designed, and a minimum-risk detonation height decision model is established. The optimal detonation height is adaptively selected according to the minimum-risk principle, thereby achieving adaptive detonation height control for known or unknown targets in complex environments and effectively improving the fuze's accuracy in estimating the detonation height of near-field extended targets.

The present invention discloses a high-safety electromechanical trigger fuze at the base of a single-soldier rocket, comprising a main body, a shell, an electric detonator, a detonating tube, a booster tube, a vertical rotor explosion-proof mechanism, a recoil safety mechanism, a gunpowder delayed release explosion-proof and safety mechanism, an inertia needle piercing ignition mechanism, a linear generator module, a gunpowder self-destruction and fire-extinguishing mechanism, a base, an inertia trigger switch, a percussion trigger switch, and an electronic control module. A redundant safety design in a weak launch environment is achieved by utilizing a dual-degree-of-freedom recoil safety mechanism and a gunpowder delayed release explosion-proof and safety mechanism ignited by an igniter on the bottom rocket motor partition, thereby delaying the release of explosion-proof protection. The main ignition is achieved by percussion triggering the detonating electric detonator, while the backup ignition is achieved by triggering the closed detonating electric detonator with an inertia switch and triggering the detonating needle piercing detonator with an inertia firing pin. The fuze has self-destruction and fire-extinguishing functions, ensuring the safe disposal of unexploded explosives caused by fuze misfires. The fuze has a simple structure and is low in cost.

The application discloses a kind of series warhead full electronic fuze, it is related to electronic safety technical field;Including rear fuze and controlled by rear fuze front fuze, the rear fuze uses sensor to perceive launch environment, and receives on missile control instruction, step by step realizes three levels of insurance removal, and it specifically includes power management module, security control module, anti-impact initiation module, the front fuze includes magnetic isolation high-voltage power supply, high-voltage initiation circuit, detonator group assembly, the power management module includes 1W capacitor isolation power supply, EMC circuit, capacitor isolation circuit, voltage conversion circuit, the 1W capacitor isolation power supply is for the security control module power supply.The application uses capacitor isolation power supply, magnetic isolation high-voltage power supply, photoelectric isolation interface and other distributed isolation technology, realizes full electronic fuze and anti-tank missile control system isolation, to meet the electromagnetic compatibility requirement of full electronic fuze, to greatly reduce the volume of power management module.

Disclosed is a miniature electronic safe arm device (MESAD) kit. The MESAD kit comprises a munition adapter. a high explosive booster charge. a low energy exploding foil initiator (LEEFI) detonator, and a warhead initiation module. The munition adapter comprises a male threaded portion configured to thread into a female threaded portion at an end of a munition shell. The MESAD kit enables conversion of existing stockpiles of inventoried legacy munitions in the field. into UAS payloads by replacing legacy mechanical and electro-mechanical fuzes used on these legacy munitions with a MESAD assembly.

The present application relates to the technical field of aerial bomb fuze, especially to a mechanical time aerial bomb fuze with universal ignition function. The aerial bomb fuze currently used has problems of large timing error, insufficient ignition reliability and safety. The present application designs an anemometer and an isokinetic speed regulator, and through the regulation and control of the two, effectively increases the timing accuracy and safety. Considering that the M904 fuze adopts an impact ignition mechanism, if the angle of the aerial bomb when landing is not within the range of impact ignition, normal ignition will not be achieved. To overcome this limitation, the present application adopts a universal inertia ignition mechanism, improving the ignition reliability.

The invention relates to the technical field of cross application of fuses and data fusion processing technologies, in particular to a data fusion method for intelligent GIF fuses of a patrol ammunition, which is based on data fusion of visible light, infrared, laser ranging and radio multi-dimensional information. Seeker detection and fuze detection are integrated into an intelligent GIF fuze detection integrated device of the patrolling bomb, a seeker detection sensor obtains image information of a target through a visible light sensor, an infrared sensor, a laser range finder and an optical detector, and the laser range finder provides remote accurate distance measurement of the target; the fuze adopts radio detection to provide accurate distance detection; the target image information of the visual channel is deeply fused with the target distance and speed information of the fuze channel, and the target information in a complex battlefield is acquired and sensed in real time, so that the sensing precision and damage efficiency of the patrolling bomb carrying the intelligent GIF fuze to the target are improved.

The invention discloses a fuze burst height design method based on a combat system. The method comprises the following steps: acquiring initial parameters of an attack ammunition; carrying out warhead power numerical simulation, and determining an optimal static burst height value and optimal jet flow forming time under a static condition; determining a fuze action time mathematical model, and calculating fuze action time; considering the loss amount of the fuse action time and the optimal jet flow forming time on the fuse optimal static burst height, and determining a fuse optimal burst height mathematical model; and calculating the optimal static burst height loss value of the fuze, and determining the optimal burst height value of the fuze. Compared with the prior art, the method has the advantages that a fuse optimal burst height mathematical model is established by combining a fuse-battle matching technology and comprehensively considering the motion state of ammunition through an analogue simulation means, and a design method is provided for determining the optimal burst height of the fuse; according to the method, the burst height value is conveniently and accurately obtained, and the test cost in the ammunition development process is reduced.