Electromagnetic ejection mechanism

Abstract

The present application belongs to the field of weapon technology, and relates to an electromagnetic throwing mechanism, which comprises a bullet, a center rod, a grid hatch mechanism and an electromagnetic throwing mechanism, the center rod is used for assembling components of the electromagnetic throwing mechanism; the grid hatch mechanism is used for opening and closing a bullet throwing channel; the electromagnetic throwing mechanism comprises an electromagnetic mechanism, an impact sliding block and a bullet throwing mechanism which are sequentially arranged on the center rod from top to bottom, the electromagnetic mechanism is composed of an electromagnetic pulse circuit and is used for generating instantaneous magnetic flux change; the impact sliding block slides along the center rod in the axial direction under the action of electromagnetic force generated by the electromagnetic mechanism; the bullet throwing mechanism is fixedly sleeved on the center rod and is used for converting the axial impact force transmitted by the impact sliding block into radial impact force to push the surrounding bullets to be thrown out through the bullet throwing channel; the present application can better control the throwing posture and speed of the bullets.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of weapon technology, and particularly relates to an electromagnetic throwing mechanism of a cluster bomb. BACKGROUND

[0002] The cluster bomb is a weapon which carries a certain number of sub-bombs in a mother bomb, and throws the sub-bombs at a predetermined throwing point, so as to attack a certain range. Generally, the cluster bomb is composed of a mother bomb, sub-bombs and a throwing mechanism. The mother bomb serves as a carrier, and provides a space for the sub-bombs and the throwing mechanism. The throwing mechanism is controlled by a program, and uniformly throws the sub-bombs from the mother bomb at a certain time and place, so that the sub-bombs can cover a specific target area, thereby improving the success rate of a task or improving the killing power and killing range.

[0003] As a high-tech weapon in modern war, the throwing scheme and the throwing mechanism of the cluster bomb are undoubtedly one of the most critical technologies. The throwing mode and effect of the sub-bombs will directly affect the scattering area and density, and thus determine the combat efficiency and success rate. Generally, the throwing of the sub-bombs needs to meet the following basic requirements: reasonable scattering range; reasonable scattering density; easy separation between the sub-bombs; and no influence on the performance of the sub-bombs.

[0004] At present, the throwing mechanism of the cluster bomb system can be divided into passive throwing and active throwing according to the basic principle. The passive throwing relies on the inertia or centrifugal force of the rotation of the movement of the mother bomb to throw the sub-bombs. The active throwing gives the sub-bombs the throwing kinetic energy by the throwing system in the mother bomb. The active throwing uses an additional power source or actuating mechanism to actively push the sub-bombs to separate from the mother bomb. Compared with the passive throwing, the active throwing can control the posture and speed of the sub-bombs, so as to meet the target requirements. Meanwhile, the destruction ability is related to the state of the thrown sub-bombs.

[0005] The active throwing can be roughly divided into mechanical force separation throwing and throwing gas pushing according to the actuating source. The mechanical force separation throwing mainly gives the sub-bombs a force in the radial direction to separate from the mother bomb through a mechanical structure. The guide rod structure has been successfully used in a 122mm rocket cluster bomb, and the CBU-24 / B cluster bomb relies on springs and gravity to achieve the purpose of scattering. The throwing gas pushing is to release high-temperature and high-pressure gas through the reaction of gunpowder or explosives, and then to make the sub-bombs obtain the radial separation force through, for example, a piston pushing or an elastic gas bag extrusion. For example, the BL755 aerial cluster bomb is a gas bag inflation extrusion throwing. The central tube explosion throwing technology relies on the explosion tube in the center of the bomb body. The kinetic energy required for the sub-bombs to be thrown is provided by the explosion of high-density explosives in the explosion tube. After the central tube explosion breaks, the shock wave acts on the protective filling material around the sub-bombs, and finally completes the throwing of the sub-bombs.

[0006] Mechanical force separation and throwing has low efficiency, but good transmission capacity, can ensure good synchronism, and the actuation mode is relatively regular, so that the posture and speed of bullet throwing can be controlled.

[0007] When the parent bullet flies at supersonic speed, a conical shock layer is generated at the head of the bullet, and the aerodynamic characteristics around the bullet body are quite different from those at subsonic speed, so the bullet ejection from the chamber has more stringent requirements. The parent bullet speed in the present application is relatively fast, the maximum speed can reach 2-3 Mach, and there is complex shock wave interference between the bullet and the parent bullet after the bullet is ejected, which easily causes unstable flight of the bullet, which has a great influence on the throwing flight posture of the bullet. The pressure difference between the side close to the parent bullet and the outer side of the bullet after being thrown out is large, and the low pressure area inside causes the bullet to lower its head towards the parent bullet, resulting in collision and damage between the bullet and the parent bullet, and even sympathetic detonation.

[0008] The actual working condition requires that the speed and angular velocity of the bullet when thrown away from the parent bullet reach certain indicators, and meanwhile, the parameters are controllable. At the same time, the throwing mechanism needs to have good synchronism, and a large number of bullets can be thrown out at the same time, in the same batch, and in the same way, to ensure the dispersion range and density of the bullets. Passive throwing and pyrotechnic actuation are difficult to control the bullet posture, while mechanical structure actuation can better control the bullet throwing posture and speed. SUMMARY

[0009] The present application aims to overcome the shortcomings in the prior art, and provides an electromagnetic throwing mechanism.

[0010] In order to achieve the purpose of the present application, the technical solutions described below will be adopted.

[0011] An electromagnetic throwing mechanism is arranged in an electromagnetic throwing cabin section of a parent bullet, the electromagnetic throwing cabin section is located in the front section, middle section or rear section of a parent bullet load cabin section, and the electromagnetic throwing cabin section comprises an electromagnetic cabin section and a bullet throwing cabin section arranged continuously from top to bottom; the electromagnetic throwing mechanism comprises a bullet and a center rod, wherein:

[0012] The center rod is fixedly arranged on the center axis of the parent bullet load cabin, and is used for assembling components of the electromagnetic throwing mechanism;

[0013] The electromagnetic throwing mechanism further comprises a grid cabin door mechanism and a bullet electromagnetic throwing mechanism, wherein:

[0014] The grid cabin door mechanism is arranged in the bullet throwing cabin section, and is used for opening the bullet throwing passage before the bullet electromagnetic throwing mechanism prepares to throw the bullet, and closing the bullet throwing passage after the bullet electromagnetic throwing mechanism throws the bullet;

[0015] The bullet electromagnetic throwing mechanism comprises an electromagnetic mechanism, an impact sliding block and a bullet throwing mechanism arranged in sequence from top to bottom on the center rod, wherein:

[0016] The electromagnetic mechanism is composed of an electromagnetic pulse circuit for generating instantaneous magnetic flux change. The electromagnetic pulse circuit includes capacitors C1 arranged in a ring matrix along the inner wall of the outer shell of the electromagnetic cabin section and an induction coil W1 arranged in a ring matrix around the central rod.

[0017] The impact slide is coupled to the electromagnetic mechanism by a return spring. The top of the impact slide is provided with an aluminum rod arranged in a ring matrix, which can be inserted into the coil center hole of the induction coil W1 under the elastic force of the return spring. The bottom of the impact slide is provided with a rotating shaft support arranged in a ring matrix. Each rotating shaft support is hinged to the corresponding bullet pusher through a rotating shaft. The inside of the aluminum rod can generate induced eddy current under the action of the instantaneous magnetic flux change of the induction coil W1 to generate electromagnetic force, which pushes the impact slide to slide along the central rod.

[0018] The bullet launching mechanism includes a right prism, a bullet, and a bullet clamp. The central axis hole of the right prism is fixedly connected to the central rod, and each side is provided as a guide arc surface, and a semicircular groove B is arranged at the bottom edge of each guide arc surface. The bullet is clamped by the bullet clamp arranged in a ring matrix around the central rod and placed in the semicircular groove B. During the process of the impact slide being impacted downward along the central rod under the action of the electromagnetic force, the axial impact force is converted into radial impact force through the sliding cooperation of the bullet pusher and the guide arc surface, which pushes the bullet to be launched through the bullet launching channel.

[0019] Further, the grid hatch mechanism includes an outer grid hatch, an inner grid hatch, an inner rack, a pinion, and a motor.

[0020] The outer grid hatch is arranged in a ring matrix along the parent bullet shell of the bullet launching cabin section.

[0021] The inner grid hatch is arranged in a ring matrix along the sleeve close to the inner wall of the parent bullet shell of the bullet launching cabin section.

[0022] The motor is fixedly installed on the inner wall of the parent bullet shell of the electromagnetic cabin section, and the output shaft of the motor is fixedly connected to the rotating shaft of the pinion for driving the pinion to rotate.

[0023] The inner rack is arranged in a ring on the top of the inner wall of the sleeve and is engaged with the pinion.

[0024] Further, in the initial state, the outer grid hatch and the inner grid hatch are arranged in a staggered manner to envelope the parent bullet body.

[0025] Before the bullet electromagnetic launching mechanism is ready to launch the bullet, the motor is driven to rotate under the control of the mother-bullet control system, which drives the inner grid hatch to rotate around the central axis and coincide with the outer grid hatch, thereby opening the bullet launching channel for bullet launching.

[0026] When the bullet electromagnetic propulsion mechanism propels the bullet, the motor continues to rotate under the control of the bullet control system, so that the inner grid hatch and the outer grid hatch are staggered, the bullet propulsion channel is closed, and the mother bullet body is re-enveloped.

[0027] Further, the electromagnetic pulse circuit comprises a capacitor C1, a switch S1, an inductive coil W1 and a diode D2, wherein one end of the switch S1 is connected to the negative electrode of the diode D2 through the capacitor C1, the other end is connected to the positive electrode of the diode D2 through the inductive coil W1, and the electromagnetic pulse circuit is formed, wherein the diode D2 is used to prevent the capacitor C1 and the inductive coil W1 from generating electromagnetic waves.

[0028] Further, the electromagnetic pulse circuit further comprises a freewheeling circuit, and the freewheeling circuit comprises a diode D1 and a resistor R1, wherein the negative electrode of the diode D1 is connected to the connection line of the switch S1 and the inductive coil W1, and the positive electrode is connected to the connection line of the inductive coil W1 and the diode D2 through the resistor R1.

[0029] Further, the impact slide is a regular polygonal column body provided with a central hole in sliding fit with the central rod; each side surface of the regular polygonal column body is provided with a longitudinal semicircular groove A, and the axis of the semicircular groove A can coincide with the axis of the bullet; the top of the regular polygonal column body is provided with an annular matrix arrangement of aluminum rods; the inner side of each semicircular groove A at the bottom of the regular polygonal column body is provided with two pivot supports and a pivot arranged between the two pivot supports, and the outer side corners of each pivot support are rounded corners; the pivot is hinged to the bullet push handle, and a torsional spring is arranged on the pivot, and the force arm foot of the torsional spring is arranged across the pivot.

[0030] Further, the hole wall of the central hole is provided with a straight guide rail sliding groove.

[0031] Further, the bullet propulsion mechanism comprises a regular prism, a bullet and a bullet clamp, wherein:

[0032] The regular prism is fixed on the central rod of the bullet propulsion cabin section through the central shaft hole, and each side surface is arranged as a guide arc surface, and the bottom edge of the guide arc surface is provided with a longitudinal semicircular groove B, and the central axis of the semicircular groove B can coincide with the central axis of the bullet;

[0033] The bullet is clamped by the bullet clamp arranged in an annular matrix around the central rod, and the upper part is arranged in the semicircular groove B;

[0034] When the impact slide impacts downward along the central rod under the action of electromagnetic force, the axial impact force is converted into radial impact force through the sliding fit of the bullet push handle and the guide arc surface, and the bullet is propelled out through the bullet propulsion channel.

[0035] Further, the linear guide rails are arranged around the central rod in a ring matrix and vertically.

[0036] Further, the top end of the bullet pusher is provided with a pair of spaced apart through-hole rings, the outer side of which is a collision curved surface, and the left and right sides of the collision curved surface are provided with rectangular grooves. Beneficial effects

[0037] 1. The ejection speed and angular velocity of the bullet can be effectively adjusted according to the speed of the parent bullet and the aerodynamic working condition, the angular velocity of the bullet can reach 4-8 m / s, and the angular velocity can reach 12-18 rad / s, so as to resist the complex environment of the sub-bullet ejection under the supersonic aerodynamic working condition.

[0038] 2. The distance between the impact point and the center of mass of the bullet can be adjusted by adjusting the bullet feeding position, or the ejection strategy can be changed for different types of bullets by adjusting the number of capacitors and the size of the circuit resistance to change the speed of the impact slider, so that different types of bullet ammunition can be equipped in the same parent bullet.

[0039] 3. After the bullet is separated, the parent bullet can be re-enveloped as a complete whole to continue the task.

[0040] 4. The ejection mechanism can be repeatedly actuated, and the bullet ammunition can be loaded through the bullet feeding mechanism, and the utilization rate is high under the same mechanism mass design constraint level. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The structure diagram of the bullet electromagnetic ejection mechanism in the parent bullet load cabin is shown in the figure.

[0042] Figure 2 The structure diagram of the grid door mechanism is shown in the figure.

[0043] Figure 3 The structure diagram of the impact slider is shown in the figure.

[0044] Figure 4 The structure diagram of the bullet ejection mechanism is shown in the figure.

[0045] Figure 5 The electromagnetic pulse circuit diagram in the electromagnetic mechanism is shown in the figure.

[0046] Figure 6 The working principle diagram of the bullet electromagnetic ejection mechanism is shown in the figure. DETAILED DESCRIPTION

[0047] The application will be further described in combination with the drawings and examples.

[0048] As an embodiment of the application, as Figures 1 to 6As shown, an electromagnetic ejection mechanism is arranged in an electromagnetic ejection cabin section of a parent projectile, which is located in the front section, middle section or rear section of a parent projectile load cabin section, and the electromagnetic ejection cabin section comprises an electromagnetic cabin section and a bullet ejection cabin section arranged successively from top to bottom; the electromagnetic ejection mechanism comprises a bullet 7 and a center rod 23, wherein:

[0049] The center rod 23 is fixedly arranged on the center axis of the parent projectile load cabin, and is used for assembling components of the electromagnetic ejection mechanism;

[0050] The electromagnetic ejection mechanism further comprises a grid cabin door mechanism and a bullet electromagnetic ejection mechanism 2, wherein:

[0051] The grid cabin door mechanism is arranged in the bullet ejection cabin section, and is used for opening a bullet ejection passage before the bullet electromagnetic ejection mechanism 2 prepares to eject the bullet, and closing the bullet ejection passage after the bullet electromagnetic ejection mechanism 2 ejects the bullet;

[0052] The bullet electromagnetic ejection mechanism 2 comprises an electromagnetic mechanism 1, an impact sliding block 5 and a bullet ejection mechanism 4 arranged successively from top to bottom on the center rod 23, wherein:

[0053] The electromagnetic mechanism 1 is composed of an electromagnetic pulse circuit, and is used for generating instantaneous magnetic flux change; the electromagnetic pulse circuit comprises capacitors C1 arranged in a ring matrix along the inner wall of the shell of the electromagnetic cabin section and an inductive coil W1 arranged in a ring matrix around the center rod;

[0054] The impact sliding block 5 is coupled with the electromagnetic mechanism 1 through a reset spring 18, the top of the impact sliding block 5 is arranged in a ring matrix, and the aluminum rods 505 can all be inserted into the coil center holes of the inductive coil W1 under the elastic force of the reset spring 18, the bottom of the impact sliding block 5 is arranged in a ring matrix, and the shaft supports (502) are arranged in a ring matrix, each shaft support 502 is hinged with a corresponding bullet pusher 6 through a corresponding shaft 503; wherein the inside of the aluminum rod 505 can generate induced eddy current under the action of the instantaneous magnetic flux change of the inductive coil W1, so as to generate electromagnetic force and push the impact sliding block 5 to slide along the center rod 23 in the axial direction;

[0055] The bullet ejection mechanism 4 comprises a positive frustum, a bullet 7 and a bullet clamp 12, the center shaft hole of the positive frustum is fixedly connected with the center rod 23, and each side is arranged as a guide arc surface 402, and a semicircular groove B401 is arranged at the bottom edge of each guide arc surface 402; the bullet 7 is clamped by the bullet clamp 12 arranged in a ring matrix around the center rod 23 and is placed in the semicircular groove B401; in the process of the impact sliding block 5 being impacted downward along the center rod 23 under the action of the electromagnetic force, the axial impact force is converted into radial impact force through the sliding cooperation of the bullet pusher 6 and the guide arc surface 402, and the bullet 7 is pushed to be ejected through the bullet ejection passage.

[0056] The impact slider 5 is from static to impact along the linear guide rail 17 under the elastic force of the reset spring 18, and the displacement of the bullet pusher 6 is called slider stroke. When the impact slider 5 stroke is too short, the electromagnetic acceleration process is insufficient, the kinetic energy of the impact slider 5 is reduced, and the throwing mechanism efficiency is reduced. When the slider stroke is too long, the kinetic energy of the impact slider 5 is reduced due to the friction and collision of the mechanism, and the throwing mechanism efficiency is reduced. The stroke of the impact slider 5 changes with the specific parameters of the electromagnetic throwing mechanism, and is not a fixed value. The best slider stroke is obtained by simulation analysis and calculation of the electromagnetic throwing mechanism. The specific steps are as follows: the speed curve of the impact slider 5 is obtained by electromagnetic simulation analysis, the maximum speed is determined, the displacement curve at the same time is opened, and the displacement of the impact slider 5 at the same time is determined. The displacement is the best slider stroke of the electromagnetic throwing mechanism.

[0057] The bullet throwing mechanism 4 is fixedly sleeved on the center rod 23 of the bullet throwing cabin section, which is used for converting the axial impact force transmitted by the impact slider 5 into radial impact force, and pushing the bullets 7 arranged around the bullet throwing mechanism 4 to be thrown out through the bullet throwing channel.

[0058] As an embodiment of the present application, as shown in Figure 2 The grid cabin door mechanism includes an outer grid cabin door 19, an inner grid cabin door 20, an inner rack 2001, a pinion 22 and a motor 21, wherein:

[0059] The outer grid cabin door 19 is arranged in an annular matrix along the outer shell of the bullet throwing cabin section.

[0060] The inner grid cabin door 20 is arranged in an annular matrix along the sleeve close to the inner wall of the bullet throwing cabin section.

[0061] The motor 21 is fixedly installed on the inner wall of the electromagnetic cabin section, and the output shaft of the motor 21 is fixedly connected with the rotating shaft of the pinion 22, which is used for driving the pinion 22 to rotate.

[0062] The inner rack 2001 is arranged in an annular matrix on the top of the inner wall of the sleeve, and is engaged with the pinion 22.

[0063] The motor 21 and the pinion 22 are fixedly connected, and the size of the motor 21 and the pinion 22 does not exceed the cross-sectional area of the bullet, so as to ensure that the motor 21 and the pinion 22 do not interfere with the bullet throwing mechanism 4.

[0064] As an embodiment of the present application, as shown in Figure 2 In the initial state, the outer grid cabin door 19 and the inner grid cabin door 20 are staggered and envelope the bullet body.

[0065] As an embodiment of the present application, as shown in Figure 2As shown in the figure, before the bullet electromagnetic launching mechanism 2 prepares to launch the bullet 7, the motor 21 rotates under the control of the sub-munition control system, drives the inner grid hatch 20 to rotate around the center axis, overlaps with the outer grid hatch 19, opens the bullet launching channel, and launches the bullet 7.

[0066] As an embodiment of the present application, as shown in the figure, Figure 2 As shown in the figure, after the bullet electromagnetic launching mechanism 2 launches the bullet 7, the motor 21 continues to rotate under the control of the sub-munition control system, so that the inner grid hatch 20 and the outer grid hatch 19 are staggered, the bullet launching channel is closed, and the sub-munition body is re-enclosed.

[0067] As an embodiment of the present application, as shown in the figure, Figure 5 As shown in the figure, the electromagnetic pulse circuit includes a capacitor C1, a switch S1, an inductive coil W1, and a diode D2, wherein one end of the switch S1 is connected to the negative electrode of the diode D2 through the capacitor C1, and the other end is connected to the positive electrode of the diode D2 through the inductive coil W1, forming an electromagnetic pulse circuit.

[0068] As an embodiment of the present application, as shown in the figure, Figure 5 As shown in the figure, the electromagnetic pulse circuit further includes a freewheeling circuit, which includes a diode D1 and a resistor R1, wherein the negative electrode of the diode D1 is connected to the connection line of the switch S1 and the inductive coil W1, and the positive electrode is connected to the connection line of the inductive coil W1 and the diode D2 through the resistor R1.

[0069] The main function of the electromagnetic pulse circuit is to provide pulse current for the electromagnetic acceleration coil through the high-voltage capacitor, and at the same time prevent the high-voltage capacitor and the coil inductance from forming an LC oscillation circuit to emit electromagnetic waves and reduce the operating efficiency of the circuit. The energy storage medium in the circuit is a capacitor C1, which stores a large amount of electric charge, and the circuit adopts an open-loop control strategy, which is controlled by a switch S1 to open and close the circuit. The inductive coil W1 is the main force output component of the electromagnetic acceleration device, and after the pulse current is input, the coil generates a short-time magnetic flux change, which generates an induced eddy current inside the aluminum rod 505. The magnetic field generated by the eddy current and the magnetic field generated by the coil are inductively generated again to generate a magnetic force, which further accelerates the impact slider 5. The diode D2 is used to prevent C1 and W1 from being connected in series to generate electromagnetic waves, and the resistor R1 and the diode D1 form a freewheeling circuit, so that the current of the power coil can last for a period of time, and at the same time prevent reverse current from being generated with the freewheeling circuit to form electromagnetic waves.

[0070] The specific working principle is that the capacitor C1 is pre-charged, when the ejection system starts to work, the trigger circuit switch S1 is turned on to make the circuit closed, the diode D1 organizes the current to pass through the freewheeling circuit, and then the current is passed into the induction coil W1 to generate electromagnetic propulsion force, when the charge in the capacitor is consumed, the coil continues to form a current path through the freewheeling circuit, prolongs the generation of its own magnetic field, continues to interact with the induced eddy current magnetic field, continues to generate propulsion force, and increases the energy conversion efficiency.

[0071] As an embodiment of the present application, as shown in Figure 3 The impact slide block 5 is a regular polygonal column, and is provided with a central hole in sliding fit with the central rod 23; each side of the regular polygonal column is provided with a longitudinal semicircular groove A501, and the axis of the semicircular groove A501 can coincide with the axis of the bullet 7; the top of the impact slide block 5 is provided with an annular matrix arrangement of aluminum rods 505; the inner side of each semicircular groove A501 at the bottom of the impact slide block 5 is provided with two rotating shaft supports 502 and a rotating shaft 503 arranged between the two rotating shaft supports 502, and the outer side corners of each rotating shaft support 502 are rounded; the two rotating shaft supports 502 are hinged with the bullet pusher 6 through the rotating shaft 503, and a torsional spring 8 is arranged on the rotating shaft 503, and the force arm foot of the torsional spring 8 is arranged across the rotating shaft 503.

[0072] As an embodiment of the present application, as shown in Figure 3 The hole wall of the central hole is provided with a linear guide rail groove 504.

[0073] As an embodiment of the present application, as shown in Figure 4 The bullet launching mechanism includes a regular prism, a bullet 7 and a bullet clamp 12, wherein:

[0074] The regular prism is fixed on the central rod 23 of the bullet launching cabin section through a central shaft hole, and each side thereof is arranged as a guide arc surface 402, the bottom edge of the guide arc surface 402 is provided with a longitudinal semicircular groove B401, and the central axis of the semicircular groove B401 can coincide with the central axis of the bullet 7; the guide arc surface 402 is in sliding fit with the bullet pusher 6, and can convert the axial impact force into radial impact force.

[0075] The bullet 7 is clamped by the bullet clamp 12 arranged in an annular matrix around the central rod 23, and the upper part thereof is arranged in the semicircular groove B401.

[0076] As an embodiment of the present application, as shown in Figure 2 and Figure 4 As shown in the bullet electromagnetic launching cabin section, the linear guide rails 17 are arranged in an annular matrix vertically around the central rod 23.

[0077] As an embodiment of the present application, as shown inFigures 3 to 4 As shown, the top end of the bullet pusher 6 is provided with a pair of spaced apart through-hole rings, the outer side of which is a collision curved surface 601, and the left and right sides of the collision curved surface 601 are each provided with a rectangular groove 602.

[0078] When the bullet is launched, the collision curved surface 601 of the bullet pusher 6 first contacts and slides along the guide curved surface 402; the rectangular grooves 602 on the two sides of the bullet pusher 6 can enhance the bending resistance of the collision curved surface 601 during the action process.

[0079] The shaft hole of the rotating shaft support 502 on the impact sliding block 5 and the ring at the upper end of the bullet pusher 6 are each provided with a bearing, and the impact sliding block 5 and the bullet pusher 6 are hinged at the rotating shaft support 502 by a rotating shaft 503. A shaft sleeve and a torsion spring 8 are arranged in the gap between the two rotating shaft supports 502 of the impact sliding block 5, the torsion spring 8 is sleeved on the shaft sleeve, the shaft sleeve is sleeved on the rotating shaft 503, and the torsion spring 8 is used to press the bullet pusher 6. The pre-tightening force provided by the torsion spring 8 can turn the bullet pusher 6 to one side of the central rod 23 when it is not loaded. Since the rotating shaft support 502 on the impact sliding block 5 is rectangular to one side of the central rod 23, the support plane thereof contacts the gap plane at the ring of the bullet pusher 6, thereby limiting the rotation of the bullet pusher 6, so that the bullet pusher 6 maintains the initial posture parallel to the axis of the mother bullet. The assembly details of the bullet pusher 6 and the impact sliding block 5 are shown in Figure 4 and Figure 6

[0080] The circumference of the right circular truncated pyramid is a guide curved surface 402 with a semicircular arc, the center of which has a cylindrical through hole, and the center rod 23 is fixedly connected thereto and installed at the front end portion of the bullet 7. The feature of the guide curved surface 402 is that the curve tangent at the upper end thereof is parallel to the axis of the mother bullet, which enables the bullet pusher 6 to smoothly contact and transition when contacting the guide curved surface 402. An arc-shaped groove 401 is arranged on each guide curved surface 402 in the axial direction, the axis of which coincides with the axis of the corresponding bullet 7, and the radius thereof is slightly larger than the radius of the bullet. The guide curved surface 402 is arranged in the bullet launching cabin section; the bullet clamp 12 fixedly connected to the mother bullet provides sufficient clamping force to ensure the posture of the bullet 7.

[0081] ​The working process of the electromagnetic throwing mechanism is as follows: the electromagnetic mechanism 1 receives program control, the coil is powered on to drive the aluminum rod 505 and the impact slider 5 to move along the central rod 23 to the tail, during the axial movement of the impact slider 5 and the bullet pusher 6, the two feet on the side of the collision curved surface 601 of the bullet pusher 6 first contact the guide curved surface 402, under the inertia of the impact slider 5, the collision curved surface 601 of the bullet pusher 6 rotates around the rotating shaft and slides along the guide curved surface 402, after rotating through a certain angle, the collision curved surface 601 contacts the bullet 7, and collision occurs. At this time, the bullet 7 is turned outward by the radial impact force, breaks away from the bullet clamp 12, and is ejected from the parent bullet at a certain speed and angular velocity, and the throwing is completed in a short time. In this process, part of the kinetic energy of the impact slider 5 is converted into the kinetic energy of the bullet 7, and after the throwing is completed, the speed of the impact slider 5 is greatly reduced and returns to the original position under the action of the return spring 18, and the throwing process is completed.

[0082] The bullet needs to receive a high energy at the moment of throwing, so as to meet the corresponding speed and angular velocity requirements when leaving the parent bullet. In the traditional power source actuation mode, the motor actuation power is small, which cannot provide a large amount of kinetic energy in a short time; the inertia separation cannot control the bullet throwing posture; and the explosive actuation is difficult to ensure synchronization. Therefore, in order to make the bullet separation obtain sufficient energy, a high-power, high-efficiency and easy-to-control power source, i.e. electromagnetic actuation, is needed. The electromagnetic system can be powered by a capacitor, under certain control program, the coil is powered on to generate a magnetic field, the electromagnetic force between the coil and the aluminum rod 505 drives the aluminum rod 505, the aluminum rod 505 is connected with the impact slider 5, and the relatively heavy impact slider 5 is accelerated to a suitable speed in a short stroke, meeting the energy required for the bullet 7 to be ejected. The electromagnetic system can control the speed of the aluminum rod 505 by changing the number of capacitors, the size of the system resistance, etc., and can adjust the bullet throwing posture within a range. At the same time, the space between the bullet and the parent bullet is limited, and the electromagnetic module can realize complete functions with a small space layout.

[0083] Therefore, according to the principles of electromagnetism and dynamics, the basic operation principle of the throwing mechanism is determined: the electromagnetic module receives program control, the electromagnetic force between the coil and the aluminum rod gives the transmission device sufficient kinetic energy along the axis of the parent bullet, the transmission device converts the axial movement into radial pushing action with less energy dissipation through a certain turning device, which acts on the front end of the bullet, at this time the transmission device collides with the bullet, and the bullet is thrown out of the parent bullet.

Claims

1. An electromagnetic dispersing mechanism, the electromagnetic dispersing mechanism being arranged in the electromagnetic dispersing compartment of a mother bomb, the electromagnetic dispersing compartment being located in the front section, middle section or rear section of the mother bomb payload compartment, the electromagnetic dispersing compartment comprising an electromagnetic compartment and a bullet ejection compartment arranged continuously from top to bottom; the electromagnetic dispersing mechanism comprising a bullet and a center rod, wherein: The center rod is fixedly arranged on the central axis of the mother bomb payload compartment and is used to assemble the components of the electromagnetic dispensing mechanism; Its characteristics are: The electromagnetic throwing mechanism also includes a grid hatch mechanism and a bullet electromagnetic ejection mechanism, wherein: The grid hatch mechanism is provided in the bullet ejection compartment and is used to open the bullet ejection channel before the bullet electromagnetic ejection mechanism is ready to eject the bullet, and is used to close the bullet ejection channel after the bullet electromagnetic ejection mechanism ejects the bullet; The electromagnetic bullet ejection mechanism includes an electromagnetic mechanism, an impact slider, and a bullet ejection mechanism which are sequentially arranged on a central rod from top to bottom, wherein: The electromagnetic mechanism is composed of an electromagnetic pulse circuit for generating instantaneous magnetic flux changes; the electromagnetic pulse circuit includes capacitors C1 arranged in a ring matrix along the inner wall of the electromagnetic compartment shell and induction coils W1 arranged in a ring matrix around the central rod; The impact slider is connected to the electromagnetic mechanism via a return spring. The aluminum rods arranged in a circular matrix at the top can be inserted into the center holes of the induction coil W1 arranged in a circular matrix under the elastic force of the return spring. The rotating shaft brackets at the bottom are arranged in a circular matrix, and each rotating shaft bracket is hinged to the corresponding bullet pusher via its own rotating shaft. The interior of the aluminum rods can generate induced eddy currents under the action of the instantaneous magnetic flux changes of the induction coil W1, thereby generating electromagnetic force, which pushes the impact slider to slide axially along the center rod. The bullet ejection mechanism includes a right prism, a bullet, and a bullet clamp. The central axis hole of the right prism is fixedly connected to the central rod, and each side surface is configured as a guide arc surface. A semicircular groove B is provided on the bottom edge of each guide arc surface. The bullet is clamped by the bullet clamp arranged in a ring matrix around the central rod and placed in the semicircular groove B. When the impact slider impacts downward along the central rod under the action of electromagnetic force, the axial impact force is converted into a radial impact force through the sliding cooperation between the bullet pusher and the guide arc surface, pushing the bullet through the bullet ejection channel and ejecting it.

2. The electromagnetic spreading mechanism according to claim 1, characterized in that: The grid hatch mechanism includes: an outer grid hatch, an inner grid hatch, an inner rack, a pinion and a motor, wherein: The outer grid hatch is arranged in a circular matrix along the shell of the bullet ejection compartment; The inner grid hatch is arranged in a circular matrix along the sleeve close to the inner wall of the mother bomb shell of the bullet ejection compartment; The motor is fixedly mounted on the inner wall of the electromagnetic compartment mother bomb shell, and its output shaft is fixedly connected to the rotating shaft of the pinion gear to drive the pinion gear to rotate; The inner rack is annularly arranged on the top of the inner wall of the sleeve and meshes with the pinion.

3. The electromagnetic spreading mechanism according to claim 2, characterized in that: In the initial state, the outer grid hatch and the inner grid hatch are staggered and envelop the bomb body; When the electromagnetic ejection mechanism is ready to eject the bullet, the motor rotates under the control of the cluster bomb control system, driving the inner grid hatch to rotate around the central axis, overlapping with the outer grid hatch, opening the bullet ejection channel for bullet ejection; After the bullet is ejected by the electromagnetic ejection mechanism, the motor continues to rotate under the control of the submunition control system, so that the inner grid hatch and the outer grid hatch are arranged alternately, closing the bullet ejection channel and re-enveloping the mother bomb body.

4. The electromagnetic spreading mechanism according to claim 1, characterized in that: The electromagnetic pulse circuit includes a capacitor C1, a switch S1, an induction coil W1 and a diode D2, wherein one end of the switch S1 is connected to the cathode of the diode D2 through the capacitor C1, and the other end is connected to the anode of the diode D2 through the induction coil W1, forming an electromagnetic pulse circuit, wherein: the diode D2 is used to prevent the capacitor C1 and the induction coil W1 from generating electromagnetic waves.

5. The electromagnetic scattering mechanism according to claim 4, characterized in that: The electromagnetic pulse circuit also includes a freewheeling circuit, which includes a diode D1 and a resistor R1, wherein the cathode of the diode D1 is connected to the connection line between the switch S1 and the induction coil W1, and the anode of the diode D1 is connected to the connection line between the induction coil W1 and the diode D2 through the resistor R1.

6. The electromagnetic scattering mechanism according to claim 1, characterized in that: The impact slider is a regular polygonal column with a center hole that slides with the center rod; each side of the regular polygonal column is provided with a longitudinal semicircular groove A, and the axis of the semicircular groove A can coincide with the axis of the bullet; the top of the regular polygonal column is provided with aluminum rods arranged in a ring matrix; two rotating shaft brackets and a rotating shaft arranged between the two rotating shaft brackets are provided on the inner side of each semicircular groove A at the bottom of the regular polygonal column, and the outer corners of each rotating shaft bracket are chamfered. The rotating shaft is hinged to the bullet pusher, and a torsion spring is provided on the rotating shaft, and the force arm foot of the torsion spring is arranged across the rotating shaft.

7. The electromagnetic spreading mechanism according to claim 6, characterized in that: The hole wall of the central hole is provided with a linear guide rail groove.

8. The electromagnetic spreading mechanism according to claim 1, characterized in that: The bullet ejection mechanism includes a right prism, a bullet and a bullet clamp, wherein: A right prism, fixed to the central rod of the bullet ejection compartment through a central axis hole, with each side surface being provided with a guide arc surface, and a longitudinal semicircular groove B being provided at the bottom edge of the guide arc surface, and the central axis of the semicircular groove B being able to coincide with the central axis of the bullet; The bullet is held by bullet clamps arranged in a ring matrix around the central rod, and its upper part is placed in the semicircular groove B; When the impact slider impacts downward along the center rod under the action of electromagnetic force, the axial impact force is converted into radial impact force through the sliding cooperation between the bullet pusher and the guide arc surface, pushing the bullet through the bullet ejection channel.

9. The electromagnetic scattering mechanism according to claim 1, characterized in that: In the electromagnetic dispersion compartment, linear guide rails are vertically arranged in a ring matrix around the central rod.

10. An electromagnetic scattering mechanism according to claim 6 or 8, characterized in that: The top of the bullet pusher is provided with a pair of spaced-apart through-hole circular rings, the outer side of which is a collision curved surface, and rectangular grooves are provided on the left and right sides of the collision curved surface.

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