JP2842460B2 - High performance explosive generator - Google Patents

Abstract

PURPOSE:To get a high-performance explosive generator where a large current can flow by charging a normal explosive on initiating side and subsequently highperformance explosive, as the explosive to be charged, in an armature. CONSTITUTION:In case of a coil-type generator, a normal explosive 8 and a highperformance explosive 9 are arranged as explosives inside a cylindrical armature so that the high-performance explosive 9 may become conical at the interface with the normal explosive 9 and pierce the ordinary explosive 8. Moreover, a stator 3 with the normal winding 4 is arranged around an armature 1, and an initial power source 6 and a load 7 are connected, and when the explosion is triggered by the triggering device 5 at one end of the normal explosive, the armature operates by the explosion of the normal explosive 8 at first, and the gap 2 is reduced, and a magnetic field is condensed. And, as the condensation of the magnetic field advances, the explosion of the high- performance explosive 9 begins, and the condensation of the magnetic field advances with great force, as a result, a large current can be supplied to the load 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a magnetic field concentration type (hereinafter referred to as MC).
The present invention relates to an explosive generator, particularly a high-power explosive generator using a high-performance explosive.

[0002]

2. Description of the Related Art An MC type explosive generator is based on the principle that a gap between an armature and a stator is reduced by detonation of an explosive for driving an armature and a magnetic field is concentrated.

[0003] Referring to the drawings, a specific configuration thereof will be described with reference to the drawings. As shown in a cross section in FIG. 8, a stator 3 having a coil winding 4 built around a cylindrical armature 1 is formed so as to have a gap 2. As shown in FIG. 2, there is a coil-type generator arranged and a plate-type generator in which a flat armature 1 and a stator 3 are opposed to each other with a gap 2 therebetween. In a state where these generators are energized to the load 7 through the armature 1 and the stator 3 by the initial current source 6, in the case of the coil type, when the explosive 8 disposed inside the armature 1 is exploded by the detonator 5, As the detonation progresses, the armature 1 expands, the gap 2 existing between the armature 1 and the stator 3 shrinks, and the magnetic field formed therein is concentrated. In the case of a flat generator, the flat armature 1
When the explosive 8 disposed on the explosive device is exploded by the detonator 5, the flat armature 1 is pushed down toward the flat stator 3, and the gap 2 between the armature 1 and the stator 3 is reduced, The magnetic field formed there is concentrated.

In this case, a parallel gap 2 formed by the stator 3 and the armature 1 is proportional to the square of the strength of the concentrated magnetic field.
The force (f ₁ ) against the reduction of becomes larger. On the other hand, the detonation force causes a force (f ₂ ) to expand the armature 1 outward in the case of the coil type, and a force (f ₂ ) to push the armature 1 downward in the case of the flat type. ₂ ) need to be bigger.

Here, when f ₁ = f ₂ , concentration of the magnetic field stops, and further current amplification cannot be performed.

[0006]

[0008] The present invention is intended to provide a high-performance explosive power generator by increasing the f ₂ by identifying and its loading method kind of the explosive.

[0007]

According to an embodiment of the present invention for solving the above-mentioned problems, an explosive to be loaded into an armature is provided with a normal explosive on a detonating side, followed by a high-performance MC type high performance explosive generator loaded with explosives. The regular explosive has a steady explosion speed of 6.0 km
/ Sec or less, and those faster than that are called high explosives.

In general, the force exerted by the detonation gas on the armature is approximately proportional to the square of the explosive speed of the explosive. That is, the present invention is usually used explosives in the first half the force f ₁ against the reduction of the gap portion 2 is small, a combination of high explosive in the second half large f ₁ force, by rationally using explosives, the same A large current can be obtained even when a generator having a shape is used.

Further, in magnetic field concentration type power generation, the rate of change (decrease rate) of inductance is proportional to the magnetic field concentration rate, which is proportional to the electric output. However, high explosives are expensive,
Efficient power generation can be achieved by using a normal explosive in the initial stage of magnetic field concentration and using a high-performance explosive in the second half.

Referring to the drawings, a specific point will be described.
FIG. 2 is a schematic view of a vertical section in the case of a coil-type generator of the present invention. A normal explosive 8 and a high explosive 9 are arranged as explosives inside the cylindrical armature 1 such that the high explosive 9 is conical at the interface with the normal explosive 8 and penetrates the normal explosive. A stator 3 containing a coil winding 4 is arranged around the armature 1, and an initial current source 6 and a load 7 are connected as shown. When detonated by a detonator 5 in the normal end of the explosive, the first (between f ₁ is small) is a magnetic field is void section 2 the armature 1 is operated by detonation of normal explosives 8 reduced is concentrated. When the magnetic field concentration increases and f ₁ increases, the high explosive 9 detonates, and the magnetic field further increases with a large force. As a result, a large current can be supplied to the load 7.

FIG. 2 to FIG. 7 show the case of a flat plate type generator. FIG. 2 is a schematic diagram of a vertical cross section of a flat plate type generator,
FIG. 3 is a plan view thereof. FIG. 2 shows that the normal explosive 8 and the high explosive 9 are arranged on the armature 1 such that the normal explosive 8 penetrates between the high explosive 9 and the armature 1 in a wedge shape at the interface between them. I have. In this case, the detonation of the explosive is started by the detonator 5, the armature 1 is pushed down toward the stator 3, the gap 2 is reduced, and the magnetic field is concentrated. When f ₁ increases as the concentration of the magnetic field progresses, detonation of the high-performance explosive 9 starts, and the concentration of the magnetic field further proceeds with a large force, so that a large current can be supplied to the load 7.

FIGS. 4 and 5 have the same concept as FIGS. 2 and 3, and show an example in which the high-performance explosive 9 is in the form of a wedge and penetrates into the center of the normal explosive 8.

FIGS. 6 and 7 show a flat plate type generator,
This is a specific example in which the tip of the high-performance explosive 9 penetrates into the center of the normal explosive 8 in a pyramid shape.

As described above, in any of the examples, at the interface between the high explosive 9 and the normal explosive 8, the high explosive 9 exists at a position away from the armature 1, and the normal explosive 8 is in contact with the armature 1. If the high explosive 9 is in contact with the armature 1 at the interface, the explosive speeds of the two types of explosives are discontinuous at the contact portion, and the armature 1 may be broken.

However, if an explosive in which both explosives are mixed is disposed at the contact portion between the high-performance explosive 9 and the normal explosive 8, discontinuity in the explosive velocity can be prevented, but it is difficult to produce such an explosive. Absent.

At the interface between the normal explosive 8 and the high explosive 9, the angle of the tip (for example, θ in FIG. 1) at which the high explosive penetrates the normal explosive has an optimum value. It is represented by an equation.

Assuming that the explosive velocity of a normal explosive is d ₁ (m / sec) and the explosive velocity of a high-performance explosive is d ₂ (m / sec), d ₂ · c
osθ ≧ d ₁ than _{cosθ ≧ d 1 / d 2 →} θ ≦ cos -1 is (d ₁ / d ₂₎ is a condition.

The explosive used in the present invention has two explosion speeds, for example, a plastic explosive containing pentolit and having an explosion speed of 5,500 m / sec, and a plastic explosive containing HMX having an explosive speed of 8,500 m / sec. 400m
/ Sec, but explosives of each of three or more explosive speeds may be combined.

[0019]

The present invention will be described below in detail with reference to examples.

The above explosion speed of 5,500 m / sec and 8,4
As a result of conducting an experiment in the range of θ = 30 ° to 40 ° with a combination of 00 m / sec, the explosion velocity was 5,500 m / sec, and the current amplification value increased by 20 to 30% as compared with the single case. Was seen. In the case where the angle was not set to θ = 49 ° or less, it was observed that the increase in current was stopped due to a phenomenon that was considered to be breakage of the liner.

[0021]

As described above, the explosive generator according to the present invention can obtain a larger current than the conventional one.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a longitudinal section showing a configuration of a coil generator in a specific example of the present invention,

FIG. 2 is a schematic view of a longitudinal section showing a configuration of a flat plate type generator in a specific example of the present invention;

FIG. 3 is a schematic plan view of the device of FIG. 2;

FIG. 4 is a schematic view of a longitudinal section of a specific example different from FIG. 2,

FIG. 5 is a schematic plan view of the device of FIG. 4;

FIG. 6 is a schematic diagram of a longitudinal section of a specific example different from FIG.

FIG. 7 is a schematic plan view of the device of FIG. 6,

FIG. 8 is a schematic diagram of a longitudinal section showing a configuration of a conventional coil generator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Armature 2 Air gap 3 Stator 4 Coil winding 5 Detonator 6 Initial current source 7 Load 8 Normal explosive 9 High-performance explosive

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuzo Fujiwara 1-1, Higashi, Tsukuba, Ibaraki Pref., Industrial Technology Institute Chemical Research Laboratory (72) Inventor Yozo Kakudate, 1-1-1, Higashi, Tsukuba, Ibaraki Pref. Within the Technical Research Institute (72) Inventor, Tsubasa, 1-1-1, Higashi, Tsukuba, Ibaraki Pref.Industrial Technology Institute, Chemical Research Laboratory (72) Inventor, Masanori Yoshida, 1-1-1, Higashi, Tsukuba, Ibaraki Pref. 72) Inventor Katsutoshi Aoki 1-1, Higashi, Tsukuba, Ibaraki Pref., Institute of Chemical Technology, Industrial Technology Institute (72) Inventor Akira Kubota 1-2-1, Yurakucho, Chiyoda-ku, Tokyo Asahi Kasei Kogyo Co., Ltd. (72) Inventor Shunichi Sato 6-4100 Asahicho, Nobeoka-shi, Miyazaki Asahi Kasei Kogyo Co., Ltd. (72) Inventor Masahiro Miyamoto Yokosuka 2-2-1, Nagasaka-shi, Fuji Electric Research Laboratory Co., Ltd. (72) Inventor: Kimi Morita 2-2-1-1, Nagasaka, Yokosuka City, Fuji Electric Research Laboratory Co., Ltd. (72) Inventor: Norihiro Hiroshige Tanabe, Kawasaki-ku, Kawasaki-shi (1) Nitta No. 1 Fuji Electric Co., Ltd. (72) Inventor Tokuo Nakazawa Tokuhiko Kuribayashi, Nichicon Co., Ltd. 56) References JP-A-3-175299 (JP, A) Patent 2592169 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02N 11/00 H02K 57/00

Claims (1)

(57) [Claims] 1. A magnetic field-enriched high-performance explosive generator characterized in that a normal explosive and then a high-performance explosive are loaded on the detonating side as the explosive to be loaded on the armature.