KR101515115B1 - Semi fixed training ammunition that has wear proof plastic material and parts changeable structure - Google Patents

Abstract

Semi-fixed training ammunition comprising an imitation warhead (10) and an imitation cartridge case (20) is disclosed. The present invention relates to semi-fixed training ammunition that has wear-proof plastic material and parts changeable structure configured so as to be exchanged and repaired easily without damaging a cock or a powder chamber, core parts of a cannon and has advantages in that as for a warhead hull (11) and a powder case (27), parts for tactical cannonball is used as before, however it is characteristic that an appearance precision with the same level as a tactical cannonball is secured at reasonable costs through minimal remodeling such as cutting, narrowing and the likes of an inlet corner of the powder case. An imitation powder stopper (21) made of wear-proof buffering material different from a powder stopper for tactical cannonball can protect a powder chamber and an auto-loading system and endure cumulative wear from several loading and firing training. An elastic compressive engagement structure between the imitation powder stopper (21) and the powder case (27) has a tight sense of assembly similar to a tactical cannonball and absorbs the impact generated in the loading process, and is assembled and disassembled easily, providing a parts changeable structure which can be repaired even in a partial damage of the power case (27), a fragile parts.

Description

Technical Field [0001] The present invention relates to a semi-rigid training arm with a wear-resistant cushioning material and a partially interchangeable structure,

This invention relates to precision imitation shells using outer parts of combat shells, specifically to have the same major dimensions and weight as those of the former, and to have durability, abrasion- And to a training shell having a charge-discharge separation structure.

A training shot is a total shot that can perform all the steps from loading to percussion without actually hitting the target.

When it is divided according to use, there is a blanket of training bullet that removes warhead only from battle bullet (hereinafter referred to as "bull"), and training bullet is bullet with small caliber bullet, simulated warhead, There is a shot.

They are common in that they can give almost the same impulse feeling to the actual shot even in the one shot as well as the one shot according to the design intention, and exploit the burden of the loaded charge by the operation principle similar to that of the former, And then discharged from the chambers. It is also similar in terms of being used in a mass production as a consumable ammunition concept and being used only once.

On the other hand, the separated shells of the cartridge case (cartridge case) and the propellant charge system are separated from each other and are sequentially loaded, which is widely used in large diameter guns such as self-propelled guns and guns.

In this way, the purpose of making shells with separate structure of warhead and charge is that they can keep the warhead and charge separately, so there is no risk of explosion, and there is no binding force between warheads and pillars. .

Particularly, it is very effective to use the vertical transfer type cannon with vertical type transfer cylinder and hoist device of revolver type upright loading type. It is very effective, and it is possible to change the warhead weight and warhead speed by diversification of the trade name, It is possible to minimize the drop in accuracy in shaking sea firing or ranged firing since it is possible to realize direct trajectory as low as possible due to an increased speed due to the easy increase in charge capacity.

However, the training using the detachable shells is a separate issue from the advantages of the former. Because of the advantageous detachable structure, once the warhead is fully pushed into the chamber, it is often difficult to remove it simply, leading to actual shooting training, mostly with a tactical warhead or house warhead, except for emergency warhead removal situations .

For this reason, except for ammunition consumed one-time at the training site, we did not feel any need for the imitation shell specialized only in pure loading trick training, and related technology development was also lacking.

For reference, there is hardly any public prior art about phantom shells specialized only in loading trick training, rather than a part-laden reconstruction of the entire sultan in removable shells.

Although all of the following documents (1) to (4) are similar in some respects to the technical idea of the present invention in the loading and the triggering process, they are basically composed of a charge- It deals with a training shot which can be automatically discharged after launch by appropriate reaction by charge. Accordingly, the present invention concentrates on the practical operation characteristics (similar to the former) which the training gun must have such as the operation of the nourishing key by the gas pressure of the charge gas and the discharge of the shell. It is somewhat different from the technical idea pursued by the present invention such as durability, abrasion resistance, The focus is different.

(1) US registered patent US 4,620,485 Training cartridge (2) JP-A-5-118795 (3) Japanese Unexamined Patent Publication No. 6-147797 Practical launch vehicle (4) United States Patent Publication US2005 / 183614 Projectile head for a training cartridge

As described above, it is difficult to repeatedly perform the low-cost training that does not consume the entire sultan because the warhead-charge detachment type shell widely used for the medium and large-sized shells is not suitable for the purely loading tacking training gun In order to overcome the shortage of training, the military has partially modified the Sultan to carry out basic loading and percussion training.

In order to prevent an explosion, the ex-Sultan has to remove both the high-explosive and propellant charge that fill the inside of the warhead and crossbow, as well as the fuze of the warhead and the primer of the battle. Was used.

In order to increase the training effect, the removed components must be filled with different filling materials in order to match the overall length and weight of the warheads and pillars. In the case of high explosive charges charged in the warhead, In the case of propellant charge, it is relatively light compared to the volume because it is relatively low in weight, so it is not enough to substitute the filling material. If the filling material is moved to one side while repeating the loading and percussion training, The weight balance is disturbed, and the training effect is greatly reduced.

In addition, there was a problem that the training drill made of liver had a problem that the shape of the warhead was awkward and length was changed by removing the new tube, and further, a rotating band rotating on the tangential bullet casing was formed by protruding from the inside steel wire. Repeatedly repeatedly loading and unloading to the inside of the gun often damage the shell shell as well as the shell shell.

Looking at the strength of the training shells, they found that they lacked the durability of the hollow copper material, which had been depleted, rather than the thick, hard steel shell shells. Since it is difficult to find a high-strength filler to replace the light propulsion charge in order to simply reinforce the paddy in such a way as to fill the inside, the overall strength of the paddy will be largely dependent on the shell strength of the charge case.

However, realistically, the Sultan's charge case is made thin with a thickness enough to withstand a single loading, percussion and coiling pressure in consideration of the actual situation, so that it is easily crushed by repetitive shocks.

Particularly, the entrance rim or waist portion of the loading case was wrinkled or damaged as the number of drills increased as the area of wear and impact accumulated while passing through the chamber contact or the stead transfer device.

In order to solve the above problem, it is conceivable to separately manufacture an imitation loading case for a training bullet having an increased sectional thickness. However, it is an extreme waste to precisely fabricate the imitation loading case with thicker cross-sectional thickness and the exact same shape of the tactical charging case and the thicker cross-sectional area for the small-scale production of the training purpose only, Even if a relatively thick and hard imitation charge case is often in contact with core parts of a gun such as a chamber and a loading device, the possibility of damaging the equipment itself is not a desirable solution.

The present invention was invented in order to solve the above-mentioned various problems in a comprehensive manner. In the process, the ineffective solution methods such as the new production of the external parts by the separate molds are eliminated as much as possible, Economically, we suggest solutions.

In order to satisfy the basic requirement that the outer shape of the warhead should be the same as that of the warrior shell 11, the charge shell case 11, the charge case 27, And the outer periphery of the charge case 27 is cut and crushed, and the same external contour accuracy as that of the engine is secured at an economical cost.

Also, in order to match the weight and weight distribution characteristics with the former, the filling material 12 filling the shell is firstly injected into the liquid state of the non-explosive material and then solidified to have a constant durability after being cured. Preferably, a filler based on a gypsum (mixture) with a specific gravity consistent with a high explosive can be applied. In addition, the column weight 24 and the joint weight 25, which serve as support pillars, can be disposed in the charge case.

Plaster of Paris, which is often used when using gypsum as a filler, can be made by heating the gypsum at about 190 ° C and then removing about 75% of the water. When the chemical agent is mixed, the crystals of the particles are recombined and hardened. At this time, nonmetallic materials (white cement, gum arabic, fiber, sand, etc.) can be appropriately mixed so as to have a specific gravity characteristic similar to that of a high explosive gun. The filled filler is fully cured and sealed by the simulated fuse 15 so that even if internal cracks occur due to a strong impact, it does not squeeze to one side and does not disturb the weight balance of the warhead.

This is also true in the case of using a metal rod as a weight, so that the main dimensions such as the diameter of each weight are adjusted so that the weight distribution of the imitation primer 26 and the imitation charge stopper 21, Can be adjusted so that the total weight of the medicament matches with that of the surgeon.

On the other hand, the imitation plug (21) belonging to the outer part of the sultan and other materials is formed of a wear-resistant buffer material as a core element of the invention, and can withstand the impact and abrasion generated during the loading and striking training of many times.

Preferably, monocasting nylon (MC nylon) may be used as the material of the imitation charging stopper 21. MC nylon is an engineering plastic molded by chemical change at atmospheric pressure by injecting nylon monomer mixed with reaction catalyst into a mold. It is useful for molding of large parts and has excellent properties compared to general extruded nylon products. It is a polymer nylon which is widely used for machine parts (wheel, etc.) and industrial materials. In particular, since the surface is soft and stronger than metal, it has an excellent buffering characteristic, superior self-lubricating (abrasion resistance), excellent overall mechanical strength, and long durability life.

As will be described in detail below with reference to the drawings, when the imitation plug 21 using the non-metallic plastic material and the charge case 27 made of the metal are fastened by a conventional method, their elasticity is different from each other, There is a risk of loosening.

Based on the structure that the core structure of the imitation medaka (20) is basically pierced through the center shaft which is independent of the transfer and loading process of the emperor,

The elastic compression type fastening structure realized by appropriately applying the elastic deformation force of the metal parts such as the cutting rim rim of the spring washer 23 and the loading case 27 to the imitation charge stopper 21 made of a polymer material, So that the fastening portion can be prevented from loosening due to impact generated in the loading process while maintaining a similar external shape and rigid sense of assembly.

Thus, while having a surface texture comparable to that of the tactical blanket as a whole, the actual loading device and the portion frequently touching the chamber are made of a smooth and soft engineering plastic (polymer nylon) surface compared to metal, The imitation medaka (20) which can be easily exchanged and repaired even in the case of local breakage is implemented.

In the following detailed description, further details supporting the above-described core technical means are further described on the basis of specific embodiments.

According to the present invention, the precise mosquito shells having the same weight, external precision and weight balance as the former mosque are used at economical cost .

This training shell with durability and buffering capacity can prevent wear of the loading system and chamber due to repetitive arsenic loading training without damaging the ball, which is a core part of the loading clamor. Also, It can be used effectively as a high-efficiency and low-cost safety training gun.

1 is a comparative perspective view illustrating the difference in appearance between a training shell and an actual tactical shell according to an embodiment of the present invention;
Fig. 2 and Fig. 3 are an exploded perspective view and a sectional view showing the imitation warhead 10 of the invention of the embodiment.
FIG. 4 is an exploded view showing a phobia 20 of the embodiment. FIG.
5 is a cross-sectional view showing the elastic compression bonding structure of the pharmacopeia 20;
6 is an assembling flowchart of the imitation medicament 20. Fig.
FIG. 7 is a partially cutaway perspective view showing a cross section of an engaging portion of a training shell assembled with an imitation warhead and a phantom barrel; FIG.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

However, in the embodiments described below, the components expressed in the specific terminology and the combination structure thereof do not limit the technical ideas encompassed in the present invention.

The embodiment shown in the figures relates to a training cannon applied to a 127mm (5 inch) gun.

The training shell of the embodiment is currently in operation in the Navy and the loading system is designed to be applied to two different types of 127mm guns. The different impacts applied to the main contact / impact site by each loading system are tested several times And the region that should be reinforced in common is derived as the optimal condition.

In brief, the warhead has a total length of less than 665mm and a weight of about 31.75kg. The warhead shell (10) is made of steel. The pillow has a total length of about 885.8 mm and a weight of about 16.5 kg, and the material of the charge case 27 is copper.

FIG. 1 is a view showing an external shape of an actual charge separation tactical shell and an external shape of a training shell of the present embodiment.

The training shell is composed of a dummy warhead 10 and a dummy dummy battalion 20. The dummy warhead 10 as a basic part consists of a warhead made of steel and a warhead outer shell 11, And the counterfeit pharmacopeia 20 shares the tacky-burned copper charge case 27.

In this case, the simulated warhead 10 uses the warhead shell 11 with the protruding portion for the rotating band removed from the shell of the tactical warhead, while the imitation rifle 20 uses the loading case (27).

The charging arm 13 of the imitation warhead 10 and the charging case 27 of reduced length of the imitation arm 20 are parts showing differences in color and texture compared with actual operators of the training shell of the embodiment One, this should be regarded as the minimum difference between the durability required for the training shell and the damage to the bubble, and there is not a big difference in terms of the external shape. It is the part that can be avoided.

The imitation charging stopper 21 of the abrasion resistant buffer material inserted into the cut-in opening of the charging case 27 of reduced length is formed to have an elongated length rather than the tactical charging stopper to exactly match the entire length of the imitation bank 20.

Compared to a full-burnt material, which is similar to paper and is completely burnt at the time of firing, the imitation plug of the embodiment is somewhat different in rigidity and texture, but also has a long life span The minimum difference is that in the case of the charge case 27 whose length is shortened, the stopper edge 27-1 is slightly inwardly (pinched) and sharp edges are exposed And thus does not impair the major working surface of the chamber surface or the entire carburetion conveyor.

2 and 3 are an exploded perspective view and a cross-sectional view showing the imitation warhead 10.

The warhead 10 having the rotating band removed can be fully loaded by pushing it all the way without being hooked by the in-line steel wire by the warhead shell 11, and then it can be easily pulled out again in the pouring.

A solid filler 12 is set in the inner space of the warhead shell 11 so as to have a weight equal to that of the high explosive gun powder for tactical fire. As described above, the filling material 12 is formed by flowing a filling material in a liquid state through the inlet tube fitting hole 14 of the shell housing 11 and solidifying it in a solid state. The filling material 12 is basically explosive, magnetic, It is applied as an inactive material.

When the filling is completed, the charging tube is sealed by screwing the charging tube 15 to the inlet of the shell 11 of the charging shell 11, which can utilize the charging tube of the tactical charging bulb in a state in which the violent force is removed.

Figs. 4 and 5 are enlarged cross-sectional views showing an exploded view showing a phantom weakness 20 and an elastic compression bonding structure.

First, the cut entrance of the charge case 27 is formed by a stopper edge 27-1 with a slightly tapered end, and a case support groove 21-1 whose diameter is reduced is formed on the outer peripheral surface of the imitation charge stopper 21, Is formed along the circumferential direction and the stopper support frame (27-1) is inserted into the case support groove (21-1) so as to support the compression direction external force acting on the imitation charge stopper (21).

At this time, in the charge case 27, a column weight 24 for supporting the outer circumferential surface so as not to be buckled or collapsed, and a joint weight 25 to be additionally fixed to the lower end of the column weight 24 to be combined with the imitation primer 26 Arranged and fixed.

Fig. 6 shows the assembling procedure of the pharmacopoeia 20.

The dummy primer 26 formed with a sufficient number of holes 26-1 is inserted so as not to penetrate to the bottom of the loading case 27 so as to be hooked so as to prevent damage and abrasion when the ball is hit, (The bottom of the shell) of the column weight 24 through the joint weight 25.

The concrete assembly process is performed by combining the column weight 24 and the joint weight 25 with each other and then tightening with the imitation primer 26 inserted from the bottom of the loading case 27 to complete the sub- The spring washer 23 and the fastening bolt 22 are inserted into the bottom of the imitation load stopper 21 and then into the entrance of the imitation load stopper 21, A screw connection between the bolt 22 and the column weight 24 is made. This means that between the case supporting groove 21-1 and the stop supporting frame 27-1, the column weight 24 and the imitation filling stopper 21 are tightly held in an elastically compressed state

As a result, as shown in FIG. 5, the imitation plug 21 and the loading case 27 are fastened while being pressed against each other, and the primary elastic compression state is maintained by the spring washer 23 and the stopper supporting frame 27-1 ), But a secondary elastic compression state is maintained.

The coupling structure of the case support groove 21-1 and the stopper support frame 27-1 is substantially the same as that of the tactical charging case without the projecting portion that damages the chamber surface, Not only the surface condition of the loading case 27 is maintained, but also a minute deformation margin is ensured, thereby doubling the buffering capacity of the imitation loading stopper 21.

FIG. 7 shows a state in which the imitation warhead 10 and the imitation rifle 20 are completely assembled. The engaging engagement relationship of the respective components can be grasped more realistically through the three-dimensionally joined section.

The technical idea of the present invention has been described above with reference to specific embodiments. It should be noted that the technical idea of the present invention is not limited to the technical interpretation category of the embodiment but may be interpreted based on the means of solving the problem and contents described in the claims below .

10: Imitation warhead
11: (tactical bullet) Warhead shell
12: Filler (solidified)
13: Rotary band elimination
14: Fittings for new fittings
15: Imitation fuse
16: Fuse cover
20: Mojo Pillow
21: Imitation stopper
21-1: Case Support Groove
21-2: Washer support frame
22: Plug tightening bolt
23: Spring washer
24: Column weight
25: Joint weight
26: Imitation primer
26-1: hole in the ball
27: (for tactical shooting)
27-1: stopper edge

Claims (6)

delete A tactical charging administration case 27 in which the entrance part is partially cut to reduce its length;
An imitation charging stopper (21) formed of a length longer than the length of the tactical charging stopper and inserted into the cut entrance of the loading case (27); And
And a column weight (24) arranged and fixed inside the charge case (27) to support the outer circumferential surface of the charge case so as not to be buckled or collapsed,
The cut entrance of the charge case 27 is formed with a stopper rim 27-1 with a slightly tapered end,
A case supporting groove 21-1 whose diameter is reduced is formed on the outer peripheral surface of the imitation charging stopper 21 in a circumferential direction,
Characterized in that the stopper support frame (27-1) is inserted and seated in the case support groove (21-1) so as to support a compression direction external force acting on the imitation charge stopper (21) (20). delete 3. The method of claim 2,
The upper end of the column weight 24 is inserted into the bottom of the imitation insertion stopper 21 and the spring washer 23 and the fastening bolt 22 are inserted into the entrance of the imitation insertion stopper 21,
Characterized in that the column weight (24) and the imitation charge stopper (21) are fastened and held in an elastically compressed state in which they are pushed together by screwing between the fastening bolt (22) and the column weight (24) Imitation medicines for training shells (20). 5. The method of claim 4,
A phantom primer tube 26 having a hole 26-1 formed therein is inserted into the loading case 27 so as to be held without being pierced and the phantom primer 26 is inserted into the column 27 through the joint weight 25, By being fastened to the lower end of the weight 24,
As a result, the imitation charging stopper (21) and the loading case (27) are fastened and held in an elastically compressed state pressed against each other. (15) which is connected to the warhead shell (11) in a state in which the violent force is removed, and a warhead (15) which is set to a weight equal to that of the high explosive gun And a solid filler 12 filled in the inner space of the outer shell 11. The filler 12 penetrates through the inlet tube fitting hole 14 of the shell outer shell 11 to fill the liquid fill material An imitation warhead (10) for a charge-separated training drill (10) formed by pouring and solidifying it into a solid state;
(20) according to any one of claims 2, 4, and 5, which are combined with each other.

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