217 results about "Artillery shell" patented technology

A two-point excitation air cannon impact test system, comprising two air cannons (38, 39), a supporting structure, a resonator plate (37), spacer blocks (36) and a test tool (35). The air cannons (38, 39) each comprise an air path integrated system and a synchronous controller; the resonator plate (37) is fixedly connected to the supporting structure; the test tool (35) is fixed on the resonator plate (37) by means of the spacer blocks (36); the two air cannons (38, 39) are respectively located directly below the test tool (35); the two air cannons (38, 39) are respectively pressurized by means of the air path integrated systems; the pressurizing process of the air path integrated systems can ensure that the two air cannons (38, 39) release completely the same pressure; and the synchronous controllers control the air cannons (38, 39) to synchronously drive projectiles in the air cannons to impact the resonator plate (37), so as to form the two-point excitation air cannon impact test system.

The invention discloses a cannonball shell ultrasonic automatic detection system and method, and the system comprises a feeding system which is used for placing a to-be-detected cannonball shell to a to-be-detected station; the ultrasonic detection system adopts a water immersion method or a semi-water immersion method to synchronously carry out ultrasonic flaw detection (A scanning, B scanning and C scanning, and is also suitable for a phased array ultrasonic detection method) on the barrel body and the bottom of the shell to be detected; the air-blowing system is used for carrying out air-blowing drainage operation on the detected cannonball shell so as to ensure that the whole cannonball shell is dry; and the discharging and sorting system is used for respectively placing the detected cannonball shells to appointed stations according to qualified or unqualified cannonball shells. The system has the characteristics of high workpiece detection efficiency and high accuracy, can perform ultrasonic scanning on workpieces of different specifications through different programs, is a professional automatic flaw detection system, and has the advantages of strong anti-interference capability, stable waveform, high precision, high reliability, simplicity in operation, high safety and good maintainability. The system not only can be used for detecting various shell shells, but also can be used for detecting tube bars or shells with different specifications.

A sabot assembly includes a housing defining an interior space and a plurality of projectiles and received in the interior space. The interior space is at least partially defined by a plurality of concavities, each of which is configured to receive a respective projectile. The housing is configured to separate and fall away once the sabot assembly is fired through a gun barrel, thereby releasing the projectiles from the interior space toward a target prior to impact of the sabot assembly with the target.

Rocket-assisted artillery rounds and methods for firing the same are described herein. In one example, a rocket-assisted artillery round includes a projectile body, rocket fuel disposed in the projectile body, an ignitor positioned to ignite the rocket fuel, and an ignition control system. The ignition control system includes a controller coupled to first and second sensors. The first sensor is configured to detect a first metric. The first metric is indicative of rotation of the projectile body. The second sensor is configured to detect a second metric. The second metric is indicative of setback of the projectile body. The controller is configured to output an activation signal to the ignitor based on the first metric and the second metric.

The invention discloses a cartridge case withdrawing mechanism, and belongs to the technical field of weaponry. The mechanism comprises a spring reset assembly, a base and an ejection plate, the spring reset assembly is installed on the front face of the base and connected with the shell ejection plate, the spring reset assembly fixes the shell ejection plate in a groove in the back face of the base through spring pre-tightening force, the spring reset assembly is pressed downwards to eject the shell ejection plate out of the groove by a certain distance during shell ejection, and the shell and the shell ejection plate move synchronously. And then the spring reset assembly is loosened, the spring pre-tightening force is used for resetting the shell withdrawing plate, the shell shell keeps still under the action of friction force between the shell shell and the shell loading groove of the base, the shell shell protrudes out of the shell withdrawing plate by a certain distance, the shell shell is taken out of the shell withdrawing plate through a tool, and the shell shell withdrawing action is completed. According to the mechanism, the operation steps of a shooter can be simplified, the cartridge case withdrawing process is stable and reliable, and the mechanism can automatically reset without blockage after cartridge case withdrawing is completed.

The present invention relates to a range extension device, particularly to a reversible range extension device, especially reversible base bleed device.There is provided a reversible range extension device, capable in use, of being reversibly engaged to a body of an artillery shell, said range extension device comprising at least one energetic material, and an igniter, wherein the range extension device comprises a first end with an aperture, and second closed end, wherein the range extension device, in use, is selectively arranged to be in an active orientation or inert orientation, wherein in the active orientation the range extension device is arranged such that the aperture faces rearwardly away from the shell to allow the range extension device to function, and in the inert orientation the range extension device is arranged such that the aperture faces inwardly towards the shell.

The invention provides a surface target damage effect evaluation method and system, and the method comprises the steps: generating a target region through a preset boundary, and calculating the area of the target region; according to the aiming point in the target area and the weapon ammunition data, N cannonball (or missile) drop points are generated; according to the ammunition drop point and the damage radius, damage circles are generated in sequence; m random points are uniformly generated in each damaged circle; traversing the N * M random points, and counting the situation that the random points in the target area fall into the damage circle; calculating a target damage area according to the random points and the number thereof, the situation that the random points in the target area fall into the damage circle, the damage radius and the area of the damage circle; counting target damage areas of more than preset times, and calculating an average value as an effective damage area evaluation result; and processing according to the effective damage area evaluation result to obtain an evaluation result of the damage rate. According to the method, the technical problems of overlapping calculation, low evaluation accuracy and relatively high calculation resource consumption of the breadth are solved.

The invention discloses a hail suppression operation method and system based on a convective monomer hazard index and hail identification, and relates to the technical field of meteorological monitoring and artificial influence weather command operation. According to the method, a severe convection monomer hazard model and a hail identification model are established based on multi-source observation such as weather radar and air sounding, the type of each severe convection monomer is identified in the hail identification model by combining two sections of score thresholds, and the development stage corresponding to the severe convection monomer is determined. A sectional type operation strategy is constructed according to the identification type and stage of the severe convection monomers, and a task distribution mechanism of multiple convection monomers and multiple operation points and an element method for calculating cannonball launching parameters are established. According to the invention, a precise operation process is provided for hail suppression command, human intervention in hail suppression operation is reduced, and the efficiency and accuracy of decision execution are improved.

A projectile that includes an artillery shell having a casing that defines a surface is provided. The projectile has an obturator that includes an obturator first material layer on the casing surface and an obturator second material layer on the obturator first material layer. The obturator also has an obturator third material layer on the obturator second material layer. The projectile also has a driving band that includes a driving band first material layer on the casing surface and a driving band second material layer on the driving band first material layer. Additionally, the projectile includes a driving band lead-in having a driving band lead-in first material layer on the casing surface and a driving band lead-in second material layer on the driving band lead-in first material layer.

The traditional artillery is not long, the root reason is that the utilization rate of a gun barrel is too low, when a shell moves to a muzzle, the bore pressure is attenuated to be very small and is more than 52 times of the diameter, and the effect of lengthening the gun barrel is not good. The problem is effectively solved. The key point is that the gas storage chamber is additionally arranged between the powder chamber and the breech, the volume of the gas storage chamber is equal to or larger than that of the gun barrel, the utilization rate of the gun barrel can reach 80% from above, and the range is increased by several times to dozens of times. According to the first embodiment, the volume of a gas storage chamber is 0.5703.3 m, the volume of a 1.5-time gun barrel is 0.3802.3 m, the length of the gun barrel is 20.15 m, the utilization rate of the gun barrel is 80%, the maximum chamber pressure is 273 MPa, 52 kg of guided projectiles are launched, the maximum overload is 10,000, the minimum overload is 6 thousand G, the average overload is 8 thousand G, and according to V2 = 2 as, the muzzle speed V = 1778 m / s, and the firing range reaches 130 km and is far beyond 20 km of a PLz-05 artillery. 150 to 190 kilograms of propellant powder is needed.

The invention relates to a plastic cartridge case for artillery shells, which can be used in the production of ammunition, in particular in the design of composite and mono block artillery cases with a plastic body, in particular for artillery shells with separate or single loading, as well as for ammunition for small arms. A plastic cartridge case for artillery shots consists of a metal bottom in the form of a disk, fixedly connected to a plastic body, in which a cylindrical stepped metal body is mounted, in the inner space of which an ignition capsule is mounted by means of a threaded connection, the metal bottom (4) being filled with a recess, in which the plastic body (2) is placed, the stepped metal body (1), in the front part of which a tube (7) is fixedly mounted, oriented along the axis of the plastic body, with radially oriented holes (7a) formed along its length, and an incendiary charge (8) is placed inside it.

A closed, self-contained ballistic apogee detection module for use in a projectile, such as a rocket, mortar round, or artillery round, fuses data from multiple built-in sensors, such as an accelerometer, a magnetometer, and a gyroscope, and processes the data using a microprocessor through a custom quaternion extended Kalman filter to provide accurate state and orientation information about the projectile so as to accurately predict apogee. The module outputs a signal indicating apogee detection or prediction which they projectile uses to initiate fuze arming, targeting control, airbody transformation, maneuvering, flow effector deployment or activation, payload exposure or deployment, and / or other mission activity. Because the system and method of the invention does not rely on external environmental data to detect apogee, it need not use a pressure sensor and can be completely sealed in and closed without requiring access to air from outside the projectile for barometric readings.

There is provided a reversible range extension device, capable in use, of being reversibly engaged to a body of an artillery shell, said range extension device comprising at least one energetic material, and an igniter, wherein the range extension device comprises a first end with an aperture, and second closed end, wherein the range extension device, in use, is selectively arranged to be in an active orientation or inert orientation, wherein in the active orientation the range extension device is arranged such that the aperture faces rearwardly away from the shell to allow the range extension device to function, and in the inert orientation the range extension device is arranged such that the aperture faces inwardly towards the shell.

The invention relates to a rammer (1) for positioning an artillery shell, the rammer (1) comprising a stretcher (2) intended to receive the shell and guide it in translation, the rammer (1) being characterized in that it comprises a pusher (4) which can be driven in a reciprocating movement along the stretcher (2), reciprocating movement which is provided by a pair of closed flexible links (6) arranged on either side of the pusher (4), each link (6) connecting a drive wheel (6b) and a free wheel (6a), the pusher (4) having a bearing surface intended to correspond with a rear face of the shell in order to push it.

The utility model relates to the field of shell production, in particular to an automatic assembling device for a shell body butt-joint frame, which comprises a placing table, a press-fitting table arranged on the lower side of the placing table, a linear guide rail arranged between the press-fitting table and the placing table, a servo lifting rotating unit arranged in the middle of the placing table, and a supporting and positioning unit arranged on the front side of the servo lifting rotating unit. The elastic body is driven by the servo lifting rotating unit to rotate so that a positioning pin at the tail of the elastic body can preliminarily correspond to a pin hole of the butt joint frame, then the positioning pin at the tail of the elastic body and the butt joint frame are accurately aligned through the alignment clamping jaw, and the whole elastic body is supported through the front V-shaped supporting block and the rear V-shaped supporting block. And under the supporting of the tail supporting unit, the servo press-fitting unit pushes the butt-joint frame to be press-fitted to the tail of the projectile body, then automatic press-fitting treatment of the butt-joint frame of the whole projectile body is completed, and the butt-joint frame mounting speed of the whole projectile body is increased.

A shell stub catching device (24) for an armament (6) of a vehicle (1), in particular a battle tank, with guide walls (25, 26, 27, 28) which are designed to guide shell stubs (14) striking the guide walls (25, 26, 27, 28) downwards along a direction of gravity (g), wherein the guide walls (25, 26, 27, 28) have quick-connecting elements (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50) with the aid of which the guide walls (25, 26, 27, 28) can be connected to a holding structure (56, 60) without the use of tools and can be detached from the holding structure (56, 60) without the use of tools.

The invention relates to the technical field of cannonball outer trajectory measurement, in particular to an outer trajectory parameter measuring device and method based on an electric field sensor array. The system comprises a detection array composed of four electric field sensors. The method comprises the following steps: according to an electric field intensity change rate detected by an electric field sensor when a charged projectile flies nearby the electric field sensor, establishing each parameter relational expression by combining a Coulomb law; and carrying out indirect measurement on the position and the speed of the charged projectile according to the calibration and speed calibration equation. According to the invention, the electric field sensor is used for non-contact measurement of outer ballistic parameters based on the electrostatic detection technology, no interference is caused to the projectile, the cost is low, and the operation is simple; the device is high in adaptability, can be suitable for various different measurement environments, and is wide in application range.

In order to effectively solve the problem of congestion of the cartridge in the ejection guide when the rotary gun is fired at a low rate of fire, the present invention provides a multi-gear accelerated shell ejection device, which can match the corresponding ejection speed according to the firing rate of different gears, and ensure that the ejection speed is kept at a high speed under multiple firing rates, thereby ensuring smooth ejection. The invention adopts an input shaft, a cylindrical gear, a first double gear, a second double gear and an elliptical gear to form a fixed-axis gear train, and the transmission key on the output shaft is combined with different gears to select different transmission routes through the axial forward and backward movement of the output shaft, thereby realizing the selection of the transmission ratio gear, so that the speed of the ejection claw shaft that is coaxially connected to the output shaft and rotates synchronously can be gradually accelerated from the same speed as the firing rate after receiving the shell (or cartridge), which can ensure that the ejection speed is kept at a high speed under multiple firing rates, thereby ensuring smooth ejection and preventing the subsequent congestion of the ejection guide channel.

A method for calibrating artillery shells is proposed. During metalworking of the body of an artillery shell (1), grooves (2) with appropriate geometric dimensions are cut on the lateral surface or end surface (4) of the body. The shells (1) are placed on a balancing stand, where the value and angular coordinates of their existing unbalance are determined. The unbalance vector is corrected either on the lateral surface of the projectile body (1) or on the end surface (4) by one of two methods: either by installing balancing weights (5) in pre-punched grooves (2) or by drilling or milling balancing holes (6). After completing the correction of the unbalance vector, the artillery shells (1) are calibrated with respect to their mass by weights and corresponding markings on the body of each shell (1).The stabilization of the ballistic properties of artillery shells and the resulting increase in firing accuracy lead to a reduction in standardized consumption.

The utility model discloses a cartridge case fixing mechanism and launching device, cartridge case fixing mechanism includes: be equipped with the detachable cannonball's launching cylinder, and, be used for fixing the cannonball in the clamping module of launching cylinder, the cartridge case of cannonball is equipped with fixed groove, and clamping module has the fixed end of adaptation to fixed groove, and the fixed end has the first station of inserting into fixed groove and the second station of separating from fixed groove, and correspondingly, clamping module is used for controlling the station of fixed end. The launching device includes the cartridge case fixing mechanism. Replace the existing thread connection through clamping module, do not need repeatedly screwing loose and tightening thread, reduce the cumbersome nature of cannonball loading, dismounting, realized the quick loading of cannonball, the quick dismounting of cartridge case, make the operation simple and convenient to use, effectively shorten the combat readiness time.

The invention discloses a guided artillery shell integrated navigation method based on a launch coordinate system, relates to the field of guided artillery shell integrated navigation, improves the guided artillery shell integrated navigation method from the launch coordinate system strapdown inertial navigation / satellite measurement equation, solves the problem of weak observation of the integrated navigation yaw angle, and meets the requirements of the guided artillery shell integrated navigation. The difference between the yaw angle output by the strapdown inertial navigation and the satellite is introduced as a quantity measurement, and the traditional measurement equation is expanded to reduce the yaw angle error.

The invention provides an anti-percussion safety fork for an aircraft gun pod. The anti-percussion safety fork comprises a safety fork body, a connecting piece and a handle. The safety fork is connected with the handle through a connecting piece; the safety fork is U-shaped; the handle is a rectangular body; the safety fork is made of metal; the handle is made of wood; the U-shaped opening end of the safety fork is provided with a cambered surface; the connecting piece is connected with the handle through a mortise and tenon joint structure; according to the device, the key firing rotating shaft can be prevented from moving leftwards and rightwards to impact the driving hammer in the aircraft gun firing process, so that the aim of preventing the aircraft gun shell from being accidentally fired is achieved, and the operation safety of workers when the aircraft gun shell is loaded and unloaded and the firing number and the filling number of the aircraft gun are checked to be consistent is improved.

The invention discloses a rolling angle estimation method and system for a rotary guided projectile, a medium and a product, and relates to the field of projectile guidance and control. According to the technical scheme, firstly, the guidance control system collects a rotation speed signal and a speed change signal after the rotary guided projectile is ejected out of a chamber, and then an accurate kinematics equation set is constructed; secondly, the guidance control system separates the basic rotating speed component and the fluctuation rotating speed component and then combines the components to obtain an actual rotating speed value, a rotating speed estimation value is obtained by constructing a state prediction equation, and then an observation error value is obtained. Then, the guidance control system calculates a mahalanobis distance based on the observation error value, the error covariance matrix and the measurement noise covariance matrix, and determines a weight coefficient to obtain a filtering rotating speed sequence; and finally, the guidance control system performs numerical integration on the filtering rotating speed sequence in a preset time interval to obtain a final rolling angle estimated value. Therefore, the instantaneous rolling angle of the rotary guided projectile in the flight process can be accurately estimated.

Exemplary embodiments of apparatus and methods for remotely and explosively cutting the casing of a UXO and separating the fuzing components from the main charge in the UXO. A remote explosive separation tool creates a Linear Explosively Formed Projectile (LEFP) charge to separate fuzing components from live explosive threats in UXO, for example only, a 155 mm artillery round. The tool functions by explosively deforming a copper liner into a linear projectile or penetrator which then impacts the UXO casing. The speed of impact enables the fuzing elements of the UXO to be removed from the main charge of the UXO either by directly cutting the fuze elements off or by imparting the fuze elements with enough momentum such that they break off. The process of dismembering the fuze elements occurs without detonating the main charge of the UXO. The tool may be remotely placed by an unmanned vehicle.

The utility model relates to an electric hand cannon for a transformable robot, comprising a shell (2), a gun barrel (1) located at the front end of the shell (2), and a gun tail (3) located at the rear end of the shell (2); the gun barrel (1) comprises a shell (11), a steering gear located inside the shell (11), a cannonball launching mechanism (13), and a gear (12) located outside the shell (11); the steering gear is fixedly connected to the gear (12) through screws, and when the robot is working, the steering gear transmits power (rotational motion) to the gear (12), and the gear (12) cooperates with a rack (25) on the shell (11) to push the gun barrel (1) to automatically move forward and backward; the gun tail (3) comprises a gun tail shell (31), and a circuit board (32) with a lamp bead and a spring wire (33) are arranged in the gun tail shell (31), and the spring wire (33) provides electric energy for the gun barrel moving forward and backward. The electric gun barrel of the utility model can automatically extend and retract and semi-automatically launch cannonballs, thereby increasing the fun of the robot.

The invention discloses automatic filling equipment for square propellant bags of cannonballs and missiles. The automatic filling equipment is sequentially provided with a square propellant bag feeding mechanism, a propellant bag feeding mechanism, a propellant bag sewing mechanism and a finished product discharging mechanism according to the machining process. The lower ends of the medicine bag feeding mechanisms are provided with medicine bag opening mechanisms corresponding to the medicine bag feeding mechanisms. An ammunition feeding mechanism for realizing feeding for the ammunition packaging mechanism is arranged at the feeding position of the ammunition packaging mechanism; a set of medicine bag transferring mechanisms are further arranged, and the medicine bag transferring mechanisms extend to the finished product discharging mechanism from the square medicine bag feeding mechanism. Automatic ammunition filling processing of square ammunition bags can be achieved, and the effects of automatic adjustment of feeding, automatic bag opening filling, automatic sewing and automatic discharging can be achieved; manual participation is not needed in the working process; the processing effect of accurate weighing and discharging can be achieved through the medicine package feeding mechanism; the filling weight precision of the filling work can be effectively ensured; and the overall machining efficiency, machining precision and machining quality are higher.

A mortar training device includes a barrel body including a bore; a shot detector contained in the barrel body and including a shot detection sensor and configured to output an electronic signal indicating a firing of an inert mortar projectile from the barrel body; a battery; a plurality of orientation sensors contained in the barrel body; and one or more processors and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to receive the electronic signal from the shot detection sensor indicating that an inert mortar projectile is fired from the barrel body, and determine an elevation of the barrel body and an azimuth of the barrel body when the inert mortar projectile is fired from the barrel body based on sensor data received from the plurality of orientation sensors.

A rotation exercising ball structure includes two shells, two pivot seats, a weight unit, and two handle protecting members. The two shells are combined to construct a hollow ball. Each of the two shells has a space. Each of the two pivot seats is formed on the space and has a through hole. The weight unit includes a mandrel, a rotation member, two bearings, and a weight. The mandrel has two ends each secured in the through hole of one of the two pivot seats. The rotation member has a first end provided with a mounting hole for mounting the two bearings. The weight connects a second end of the rotation member. The rotation member and the weight are rotated on the mandrel. The two handle protecting members are mounted on the two shells.

The present invention discloses a gun ignition system for primerless artillery shells, comprising an ignition unit, a launch unit, and a control unit. The ignition unit comprises a first-shot shell ignition unit, a fuel gas cylinder, and an ignition tube; the fuel gas cylinder is connected to the launch unit via the ignition tube. Compared with existing technologies, the present invention uses high-temperature, high-pressure fuel gas generated by gunpowder gas to ignite shells during continuous firing, thereby eliminating the shell primer, saving resources, simplifying the gun structure, and improving firing reliability.