KR101243770B1 - Shell fuse that has leak prevention structure for detonating pressure - Google Patents

Abstract

In a fuse 100 that can be coupled to / detached into projectiles or shells, a structure of a fuse designed to not be separated from the bullet body even in the case of an explosion is disclosed. The fuse of the present invention comprises a detonator 40, a control unit 60 for operating the detonator, and a main housing 30 formed to surround the detonator, and the main housing has a coupling part coupled to the main body ( 31) is formed, the coupling strength of the coupling portion and the sealing structure of the main housing is designed to withstand pressure above the explosion pressure of the detonator 40.
One or more of the control unit 60, the manual insertion unit 80 and the nose cone 90 may be further coupled to the outside of the sealed structure of the main housing 30, and electrically connected between the control unit and the detonator 40. The connecting terminal 32 is formed. The configuration of the control unit 60, the manual charging unit 80, etc. that the main housing is not wrapped is configured to wrap using two or three sub-housings. The fuse of the present invention can be mounted on a variety of internal objects release type projectiles or explosive bullets, and can effectively concentrate the energy generated during the explosion of the fuse in the lower explosion series formed toward the inside of the projectile to minimize the energy loss of the fuse In addition, it protects the detonator effectively after penetrating when hitting the target in the penetrating bullet.

Description

Shell fuse that has leak prevention structure for detonating pressure}

The present invention relates to a fuse that detonates a projectile or fired shell.

Projectiles or bullets filled with high explosives or deposits and exploded / discharged at a specific time after launch are referred to as 'shells' for the purpose of including both. However, the following 'shells' It is not intended to be used as a term to limit the scope of application.) Is combined with various functional fuses to effectively cause an explosion at a desired time or to prevent an unexpected explosion at an undesired time.

For example, in the case of a shell of 155 mm diameter, the fuse is screwed to the front of the shell, and at the same time as the gun is fired, the shell has a strong setback force and an acceleration of approximately 10,000 to tens of thousands of G. The centrifugal force generated by rotating at the rotational speed of hundreds to thousands of RPM is applied to the inner wire. And these two forces basically act as triggers for the fuse.

The fuse actuated at the same time as the shell is fired on its own, based on the cumulative number of revolutions since the launch, time elapsed, time of impact (shock), time elapsed after impact, and signal reception (command or target proximity). At this point, the detonator inside the fuse is exploded, causing the explosive force to explode the high-capacity charged inside the shell or to release the submunition loaded inside the shell.

The operating time of these fuses may be entered in advance at the time of manufacture of the shell, but is usually set to suit the operational capability, the properties of the explosives charged into the shell, and the scattering characteristics of the shell or generated debris, prior to the launch of the shell. Is entered.

To this end, various methods of inputting fuse operation data, that is, a method of charging fuse data, have been developed. Representative fuse data charging methods include a manufacturer input method of inputting a basic explosion pattern before the fuse is manufactured, and before launch. Manual charging method for directly inputting operation data by directly turning the operation dial installed on the fuse, and remote charging method for inputting data by transmitting an electric signal to the control unit of the fuse before and after launch.

On the other hand, the fuse comprises a safety device (hereinafter referred to as the term 'safety load device' in the art for convenience) that prevents an error immediately after the shell is fired. The safety load device is an initiator of the fuse by a blocking member. And the high explosives (or shells) filled in the shells are assembled to the fuses physically blocking each other, and the blocking member operates independently of the control unit of the fuses to release these physical blocks only after a certain time after the shell is fired. . Thus, shells before launch can be safe from detonation of fuses, and shells can also be safely stored and transported with fuses fitted. In addition, even if a fuse malfunctions at the same time as the firing of the artillery, it prevents the shell from bursting in the friendly positions by preventing the aeration force from being transferred into the shell until a certain point after the launch.

Looking at the recent trends of the modern warfare and the military industry, not only the latest launchers and missiles, but also improved operational performance with the limited range of artillery and ammunition already produced and stored, resulting in more diversified operations. The development of this is possible, and in the global weapons market, there is a growing demand for multifunctional universal shells and universal projectiles capable of better operational performance while still using conventional artillery and ammunition systems. Accordingly, the demand for versatility and versatility as well as versatility and versatility is increasing in fuses that directly affect the performance of the bullet body.

In various projectiles that have secondary and intelligent detonation after being fired, including shells that emit submunitions, it is not desirable for the explosion to leak out in an undesired direction after detonation.

Consider, for example, flares, pyrasaltans, cluster bombs, or intelligent grenades that explode past targets and kill enemies with backstorms. When the fuse is activated and detonated near the target after firing, it is necessary to send the detonation force as far back as possible if the fuse is mounted at the head of the shell. Otherwise, the inertia of the shell may not be released due to the inertia of the shell, or the killing force may be lowered because the explosives mounted on the bullet do not explode strongly.

As another example, suppose a delayed fuse that explodes after penetration. After the shell hits the target, the fuse's fuse needs to be protected in its original form to ensure that the fuse is detonated at the correct time, even after all of the shell's fuses, particularly the front nose cone and the data control unit, are destroyed. Otherwise, the shell may not explode on the surface of the target or inadvertently explode after penetrating, contrary to the original intention, and may not defeat the armored target.

However, conventional fuses, especially the front end of fuses, are difficult to design as strongly as the shell of warheads or shells due to the complex structure of many precise devices. This may be due to the total volume or gross weight of the fuse or shell, or may be due to the placement of the data compartment, and due to the assembly characteristics of the fuse, which must be manufactured in a smooth, conical shape, with multiple devices placed in a complex cascade, It is also difficult to make strong containers.

Due to the above reasons, conventional fuses assembled with thin and weak strength of the partial housing are leaked in an undesired direction when the detonation at the set time is broken and the sealed container structure of the fuse itself is destroyed. There was a problem that the detonator is damaged so quickly that the surface does not explode or delayed explosion after normal penetration.

An object of the present invention is to ensure that the detonation pressure is not leaked out when the fuse is detonated, so that the detonation force is transmitted to the inside of the main body of the bullet or the projectile, and in some cases, the detonation part is most securely protected when penetrating after the impact on the target. It is to solve the problem of the conventional fuse as described above by making it work correctly.

To this end, the present invention designed the main housing 30, which is coupled to the burnt body in the fuse design in a reinforced hermetic integral structure, and a configuration in which the detonator is selectively embedded. Accordingly, the airtight structure in which the detonation force of the fuse does not leak to the outside of the burnt body without significantly exceeding the total volume and the gross weight as compared to the conventional fuse, and the impact delay structure in which the detonation portion 40 is protected even when the target is collided with the target. Was achieved simultaneously.

As the main configuration of the fuse of the present invention exhibiting the effect of preventing the pressure leakage and delaying the impact applied to the detonator at the same time, the main housing 30 is formed to place the detonator portion 40 therein and surround it. Can be mentioned. Coupling portion 31 is formed in the main housing so as to be directly coupled to the projectile or the bullet, the coupling strength of the coupling portion is configured so as not to be separated from the projectile or bullet even in the explosion of the detonator, and the main housing is the interior of the projectile or bullet Except for the direction toward the other direction is formed in a closed structure having a strength that can withstand the pressure or more than the explosion pressure of the detonator 40.

To this end, the main housing 30 has a cross-sectional thickness of the upper cover of the housing equal to or greater than the cross-sectional thickness of the side cover of the main housing, whereby the front of the nose cone of the fuse is first collapsed by a strong detonation pressure. Prevented At this time, the detonator 40 was designed to be isolated from the control unit 60, the manual charging unit 80 and the nose cone 90 by the housing upper cover, and the detonation of the control unit in spite of the isolation design as described above in the main housing. The connection terminal 32 was further formed to transmit a signal to the initiator.

On the other hand, the rest of the configuration except for the detonator 40, such as the control unit 60, the manual charging unit 80 and the nose cone 90, which is coupled to the outside (circumference or front of the fuse) of the main housing is the main housing Compared with the sub housing 50, 60, 70 formed relatively thin and compact, it can be effectively coupled and supported.

The fuse according to the present invention can effectively concentrate the energy generated during the explosion of the fuse due to the high-strength structure of the main housing in the lower explosion series formed toward the shell, thereby minimizing the energy loss of the fuse, and also targets in the penetration type bullet. It is effective in inducing a sure detonation by minimizing the possibility of premature destruction of the detonation part in case of contact.

1 is a front cross-sectional view of a shell to which an embodiment of the present invention is applied.
Figure 2 is an exploded perspective view of the fuse produced by the embodiment of the present invention.
Figure 3 is an exploded cross-sectional view of the fuse produced by the embodiment of the present invention.
Figure 4 is an appearance and cross-sectional photo of the fuse produced by the embodiment of the present invention.
Figure 5 is a cross-sectional view showing in detail the structure and role of the main housing of the embodiment of the present invention.
Figure 6 is an experimental photograph capturing the leakage of the detonation pressure in front of the fuse when the release test using a conventional fuse by time zone.
Figure 7 is a photograph of the experiment to capture and verify by time period that the detonation pressure of the fuse is not leaked when the experiment to release the bullet using the fuse according to the present invention.

In order to represent the main problem solving means of the present invention in more detail with reference to an embodiment of the present invention included in the drawings will be described in more detail.

However, in describing the present invention based on the following specific examples, the elements including specific technical terms and the specific structures in which they are combined do not limit the spirit inherent in the present invention.

1 illustrates a state in which the fuse 100 of the present embodiment is mounted and separated on a shell 200 filled with a high explosive agent 220 inside the outer shell 210. Each part configuration of the fuse 100 is easily understood with reference to FIGS. 2 and 3. The body of the fuse consists of a main housing 30 having a thick cross section and a sub housing 50, 61, 70 having a relatively thin section that is coupled to the main housing as a skeleton. The lower sub- housing 20 is coupled to the safety loading device 10 to block between the detonator 40 and the detonator 220 of the fuse until after the shell is fired. The main housing 30 having the coupling screw is coupled to the lower sub housing 20 at the bottom and the central sub housing 50 at the top.
Based on FIG. 3, the central sub housing 50 will be described in detail. The control unit 60 on the left side of FIG. 3 is accommodated in the inner sub housing 61 on the right side of FIG. 3, and the outer surface of the inner sub housing 61 is covered by the upper sub housing 70. Surrounding the outer circumferential surface of the upper sub-housing 70 is the central sub-housing, and the manual charging unit 80 and the nose cone 90 are sequentially assembled above the upper sub-housing.

Learn about the features of each of the fuses assembled as above. The manual charging unit 80 under the nose cone 90 transmits charging data to the control unit 60 by directly inputting the dial when setting the time from the firing of the shell to the explosion or the time after the penetration. In charge. Such data charging may be remotely input by electromagnetic induction by a separate external charger using a data induction coil provided in the controller 60.

The control unit 60 starts the operation at the same time as the firing with the set detonation data (the operation triggers such as the backward inertia force and the centrifugal force have been described above) and transmits the detonation signal to the detonator 40 at a predetermined time. The detonator 40 has a battery, an detonator, and the like, which are activated at the same time as the launch. At this time, the detonating force of the detonating tube is transferred into the shell along the detonation path in the center filled with explosives.

On the other hand, the detonator can be misfired due to some wrong cause. In order to prevent this, a safety device for blocking the primary aerodynamic force transmission path with the high explosives inside the shell is a safety loading device 10 coupled to the lower side of the lower sub-housing 20. The safety loading device 10 has a rotor (a disc-shaped rotor) therein, and the rotor has a secondary or tertiary detonation force transmission path that transmits the primary detonation force of the detonator 40 to the high explosive in the shell. Initially set to a slightly eccentric position in the center of the fuse, the primary aerodynamic force transmission path. Therefore, at the same time as the launch, release of the latch holding the rotor and rotation set in the rotor (that is, the safety release operation of the safety loader) must be completed before all the detonation paths coincide so that the detonation force can be transmitted into the shell. By setting the release time of the safety device to about tens to hundreds of revolutions based on the number of revolutions of the bullet, the shells do not explode near guns or in friendly camps, or inadvertently explode when loaded or transported.

Figure 4 is a picture of the appearance and cross section of the actual fuse manufactured according to this embodiment. The structure of the safety loading device and the lower sub-housing, the control part in the detonation part in the main housing and the central sub-housing, the upper sub-housing, the manual loading part and the nose cone are described in detail.

5 is a view showing in detail the structure and role of the main housing 30 that plays a key role in the present invention. The main housing 30 completely enclosing the detonator 40 has a strengthened hermetic integral structure, and forms a coupling part for fastening the lower sub-housing 20 on the lower inner surface, and a bullet body, and more specifically, an casing on the lower outer surface. Coupling portion 31 is coupled to the 210 is formed, the upper outer surface is configured to form a coupling portion for fastening the central sub-housing 70.

The main housing 30 is basically formed in a sealed structure having a detonation force, that is, the strength to withstand the explosion force of the detonation tube. Of course, the connection terminal 32 for connecting the control unit and the detonator tube is in a holed state (where a part of the control unit (electric signal line) penetrates), or the connection terminal is completely filled after the control unit 60 module is properly inserted and fixed. The closed structure is achieved. The upper part of the main housing was an important part of the total housing strength of the main housing. In other words, it was a portion that serves as a partition wall separating the detonator 40 from the control unit 60, but the thickness of this portion (represented by critical thickness in the drawing) needed to be sufficiently thick. When the cross-sectional thickness of the upper cover part was formed to be equal to or greater than the cross-sectional thickness of the side cover part of the main housing, a certain effect of preventing leakage of pressure was achieved, and a thinner thickness was possible depending on the material of the main housing. The critical thickness of the top cover is sufficient to withstand the explosive force of the built-in detonator if it is equal to or greater than the side section thickness of the main housing.

On the other hand, the coupling parts may be basically formed as a screw thread, but if the main body structure of the shell is a structure corresponding to a permanent assembly shell, or an intelligent bullet or a short-range grenade for mass production, it does not necessarily need to be a screw thread, such as a welding or interference fitting method. Of course, it can be formed in a variety of configurations. However, in this embodiment, an important design point together with the reinforced sealing structure of the main housing is the coupling strength of the coupling portion 31 coupled with the shell body. The reason is that even if the main housing 30 is formed in a strong sealing structure, if the coupling strength of the coupling portion 31 is weak, the main housing itself may fall off the shell body due to breakage of the coupling portion 31 at the time of detonation. to be. Therefore, the coupling portion is formed of a coupling strength that withstands the ejection action (upward action in the drawing) according to the detonation force, whether screwed or in any way, so that the main housing should not be separated from the shell even when the detonation part explodes.

Due to all the structures of the main housing 30 as described above, the fuse of the present embodiment has an airtight structure in which the initial detonation force does not leak out of the shell body including the front of the fuse, and an impact delay structure in which the detonation part is protected even when the target collides with the target. Was achieved simultaneously.

6A and 6B are experimental photographs sequentially capturing leakage of the detonation pressure toward the front of the fuse when the bomb release test is performed using the conventional fuse. In the drawing, the bright and white sparking smoke is ejected to the front and back of the shell, and since the front part of the fuse falls out of the detonation pressure, the bomb is released behind the shell shell.

7A and 7B are experimental photographs verifying that the detonation pressure of the fuse is not leaked when the release of the bullet bomb using the fuse according to the present invention is performed. It can be seen that the fuse stays intact while being attached to the shell while the bullet is released to the rear and the smoke smoke is ejected to the rear. 6 and 7, if the difference according to the present invention, the fuse according to the present invention can reliably release the enclosure from the internal enclosure emission type projectile compared to the conventional fuse, and most of the use of the rear explosion It is proved that even in explosive bullets, the power can be greatly increased.

While the embodiments of the present invention have been described in detail with reference to the drawings, the technical spirit of the present invention is not limited to the above embodiments.

In other words, those of ordinary skill in the art to which the present invention pertains may utilize the technical spirit contained in the specification and drawings of the present invention, and as necessary, simple modifications and simple changes that are not included in the specification and drawings of the present invention. An extended example may be further implemented, but this is also obviously included in the scope of the technical idea uniquely possessed by the present invention.

The fuse of the present invention, specifically, the configuration of the main housing can effectively serve as the outer shell of the fuse and the cup-type fuse frame supporting the entire fuse structure more than a portion while effectively enclosing the detonation part, so that the overall design and manufacturing process of the fuse can be performed. In addition, there is an advantage that does not significantly affect the manufacturing cost. That is, the technical idea of the present invention is not limited to the size and characteristics of the projectile or the bullet body to be applied, and can be easily applied regardless of the coupling position of the fuse and the bullet. Therefore, it can be effectively applied even when the installation position of the fuse is changed according to the type of coal, or it is not easy to add the penetrating armored warhead, and it can be applied to a wide range of coal types such as long-range missiles, special purpose bullets, intelligent bullets, and explosive grenade for personal weapons. As it can be applied, it can be used in the weapons market with its high versatility.

100: fuse 200: shot
210: shell case 220: explosive
10: Safety loading device 20: Sub housing (lower)
30: main housing 31: (main housing) coupling
32: main housing connector
40: detonator
50: sub housing (center)
60: control unit 61: sub housing (inside)
70: sub-housing (upper)
80: manual insert 90: nose cone

Claims (6)

delete delete In a fuse 100 that can be coupled to or detached from a projectile or shell,
Detonator 40;
A main housing 30 formed to surround the detonator 40;
A controller 60 which transmits an initiator signal to the initiator 40;
An inner sub housing 61 accommodating the control part 60;
An upper sub housing 70 covered on an outer surface of the inner sub housing 61;
A central sub housing (50) surrounding an outer circumferential surface of the upper sub housing (70) and coupled to an upper portion of the main housing (30);
And a manual charging unit 80 and a nose cone 90 coupled upwardly of the upper sub housing 70.
On the upper end of the main housing (30), a connection terminal (32) connecting the control unit (60) and the detonator (40) to each other is formed;
A coupling part 31 is formed at a lower end of the main housing 30 in combination with the projectile or the main body of the bullet or the shell;
The coupling part 31 is coupled to the main housing 30 so as not to be separated from the projectile or the main body of the bullet or the casing 210 when the detonator 40 explodes; 100). delete An internal containment release type projectile having a fuse 100 according to claim 3 mounted thereon. Explosion bombs equipped with a fuse 100 according to claim 3.

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