JPS62163840A - Rail-energized launcher - Google Patents

Abstract

PURPOSE:To make a gliding surface interchangeable at once when this gliding surface of a feeding rail is damaged, by installing both main and auxiliary gliding surfaces, having the same circular surface each, in both back and side parts of the feeding rail feeding a projectile with a large current. CONSTITUTION:Both first and second feeding rails 3a and 3b are embedded in a gun barrel's external cylinder 1 via both first and second insulators 2a and 2b, forming a cylindrical shooting opening 4 with respective insulators 2a, 2b and feeding rails 3a and 3b, and a projectile 5 is made chargeable to the inside. In each of these feeding rails 3a and 3b, there are formed with fixed grooves 6a-6d for preventing thermal extensional deformation of each rail and main gliding surfaces 7a and 7b and auxiliary gliding surfaces 8a and 8b having the same circular surface each. And, each of these feeding rails 3a and 3b should be detachably installed so as to make these auxiliary gliding surfaces 8a and 8b usable according to the degree of damage.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rail energizing launch FI device, and particularly to a power supply rail suitable for replacing a damaged running surface of a power supply rail that supplies a large current to a projectile.

[Conventional technology]

Conventionally, this type of electromagnetic launch device consists of a synchronous linear motor-type coaxial accelerator used in magnetic levitation vehicles, and a projectile placed between two parallel copper rails. There is a rail-energized launch device in which a projectile is propelled along a rail when electrically coupled and a current is applied, that is, the projectile is directly powered from the power supply rail and launched.

The configuration of the firing hole of the rail energized launcher is a rectangular one,
A cylindrical one is considered, but regarding the configuration of this firing hole,
2 (1984), pp. 252-255 (IE
E E% Transactionon Magnet
ics, %French G-20, No2 (1984) P2
S5-255).

[Problem that the invention seeks to solve]

The power supply rail structure of conventional rail-energized launchers is designed to prevent damage to the power supply rail during sudden large-current feeding or continuous firing, i.e., to prevent damage to the feeding rail during rapid large-current feeding or continuous firing. If the firing operation was repeated for a continuous period of time, a liquefied film or spatter would form on the sliding surface of the power supply rail, causing problems such as sliding failure, but insufficient consideration was given to countermeasures for this problem. Ta.

SUMMARY OF THE INVENTION An object of the present invention is to provide a power supply rail for a l/-le through moat launcher equipped with an IRJ1 detachable multi-sided sliding rail that can be replaced immediately if the sliding surface of the power supply rail is damaged. .

[Means to solve problem 6] The above purpose is to install a regular running surface that constantly supplies power to the projectile and a reconnaissance of the regular running surface on the back and side of the power supply rail that supplies large current to the projectile P. This is sometimes achieved by providing an auxiliary running surface for summer use.

[Function] Since the arc of the regular sliding surface and the arc of the auxiliary sliding surface are the same arc surface, the multi-surface sliding rail can change the sliding surface depending on the damage to the sliding surface. Since the projectile can be powered and launched by replacing the projectile, there is no possibility that the projectile will become unusable due to poor running surface.

[Implementation row]

The embodiment of the present invention will be explained below based on the drawing (C). Fig. 1 shows a sectional view of the gun barrel of an embodiment of the present invention. First insulator 2 inside
a, the second insulator 2b is fully arranged, the first insulator 2a, the second insulator 2b1, the first rail 3a, and the second power supply rail 3b are buried; A second power supply rail 3b facing the first power supply rail 3a and the first insulator 2
A second insulator 2b facing 3 and a forms a cylindrical firing hole 4, and a firing hole #*5 is attached to this cylindrical firing hole 4 and is fired. The first power supply rail 3a and the second power supply rail A and 3b, which are used to supply two electric currents to the projectile 5, each have fixing grooves 6a and 6b for preventing heat elongation and deformation of the rails, respectively.
In addition to 6e and 6d, a regular running surface 73.7b and auxiliary running surfaces 8a and 8b are provided. The gun barrel outer cylinder 1 is firmly fixed to a fixing base 9. Further, the power feeding and firing of the projectile 5 attached to the firing hole 4 is performed by operating the nine power supply circuit 13, which consists of an upstream power supply 10, an inductor 11 for temporarily storing energy, a switch conductor 12, etc. It will be done.

The rail energizing launch device has a first power supply rail 3a and a second power supply rail 3b with regular sliding surfaces 7a, 7b and an auxiliary sliding surface 8a,
It is a removable multi-sided sliding rail with 8b.

For this reason, the regular sliding surface 7a.

Polishing and repairing spatter and oxide film attached to 7b [As a result, the sliding surface is reduced, and a step is created between the first insulator 2a and the second insulator 2b that form the cylindrical firing hole 4, and the firing hole 4
is deformed into an elliptical shape, which solves the problem of the projectile 5 causing poor power supply. In addition, in order to correct the deformation of the firing hole 4, the regular sliding surface 7 forming the firing hole 4 is
When the entire projectile is repaired, including a, 7b, the first insulator 2a, the second insulator 2b, etc., the diameter of the firing hole 4 becomes larger as a whole, and a gap is created between the projectile 5 and the firing hole 4, which makes it difficult to use. Problems such as failure may also occur when the first power supply rail 3a and the second power supply rail 3
Provide regular sliding surfaces 7a, 7b and auxiliary sliding surfaces 8a, 8b on b, and replace about 4d% of the regular sliding surfaces 7a, 7b with auxiliary sliding surfaces 8a, 8b according to the size ((Thus, this is solved. In this way, in addition to the regular sliding surfaces 7a and 7b having an arc forming one end of the diameter forming the firing hole 4, the first power supply rail 3a and the second power supply rail 3b have the same arc. By providing the auxiliary sliding surfaces 8a and 8b, it is possible to quickly deal with the problem without purchasing a new power supply rail, and also to improve the life of the pair of power supply rails and the continuous firing performance of the projectile 5.

In the above embodiment, the first power supply rail 3 that supplies large current
a and the second power feeding rail 3b, there are regular sliding surfaces 7a, 7b on which the projectile 5 slides while feeding power, and auxiliary sliding surfaces 8a, 8b' back to back.
4 are arranged, and in order to fix the first power supply rail 3a and the second power supply rail 3b to prevent thermal expansion and deformation, regular sliding surfaces 7a, 7b and auxiliary sliding surface 8a, which are arranged back to back to each other, are provided.
Fixing grooves 6a, 6b, 6c, and 6d are provided between 8b, ■
It was a beam-shaped multi-sided sliding rail. If you use this straight E-beam-shaped multi-sided sliding rail, the first power supply rail 3a
And for the second power supply rail 3b, upper? 11 The bracing action of the connecting plate 14 connecting the running surfaces 7a, 7b and the auxiliary running surfaces 8a, 8b, and the fixing? $6 al 6 bz6c, 6dK Because it is firmly fixed by the wedge action of the attached insulator,
Effective as a power supply rail to prevent thermal expansion and deformation.

However, considering the continuous power supply of large currents ranging from Uchikata amperes to hundreds of thousands of amperes, the common sliding surfaces 7a and 7b
- with auxiliary running surface 8a rather than partial energization of the rail;

It is necessary to consider the entire power supply rail including the rail with 8b. When considering a power supply rail for such a large current circuit, it is expected that the E-beam type multi-sided sliding rail shown in this example will have a large resistance and be large in size. A power supply rail having a diamond-shaped structure as shown in FIG. 2 can be considered as an effective power supply rail that solves these problems, maintains the same effect as the embodiment, and reduces rail resistance.

FIG. 2 shows a cross section of a gun barrel of a rail energizing firing device according to a second embodiment of the present invention. The difference from the previous embodiment is that (1) the beam-shaped power supply rail is replaced with a diamond-shaped power supply rail. That is, in the embodiment shown in FIG. 2, the first insulator 2a of the gun barrel outer cylinder l
, the power supply rail to be press-fitted into the second insulator 2b is connected to the square fixed guides 15a115bXl5c, 15d, the power supply sliding surface 16a116b, and the auxiliary sliding surfaces 17a, 17b.
Diamond-shaped power supply rails 18a, 18b with back-to-back
That is.

In this implementation row, one block rail has a power supply sliding surface 16a,
16b and auxiliary sliding surfaces 17a and 17b are provided back to back, and the narrow part that is back to back is fixed to the fixed guide 1 that is fixed to the rail.
5 a-, 15bXl 5 G-.

15d, and diamond-shaped power supply rails 18a and 18b are provided with the center portion of the rail width protruding from the width of the sliding surface. Therefore, due to the bracing action of the radial bulges at the ends of the power feeding sliding surface 16a and the auxiliary sliding surface 17a, and the ends of the power feeding sliding surface 16b and the auxiliary sliding surface 17b, thermal expansion deformation of the power feeding rail toward the firing hole 4 occurs. is prevented. At the same time, the rhombic power supply rail 1
8a and 18b have an integrated block rail structure without arranging the connection plate 14 between the power supply running surfaces 16a and 16b and the auxiliary running surfaces 17a and 17b, so the rail resistance can be reduced and the current capacity can be reduced. It is possible to increase the amount. Therefore, the fear that the resistance of the power supply rail is large and the current capacity is reduced, which is different from the case in the practical case, is eliminated, it is easy to take measures against damage to the power supply rail, and it is possible to provide a power supply rail that is effective for large current power supply.

In the embodiments shown in FIGS. 1 and 2, the rail structure was used in which the power feeding sliding surfaces for feeding power to the projectile 5 were placed back to back, and it was assumed that the rails would only be used once if damaged. However, considering the rail abrasion during continuous firing of the projectile 5, a structure in which sliding surfaces are arranged on four sides of a block rail as shown in Figure #c3 is effective. FIG. 3 shows a cross section of a gun barrel of a rail energizing firing device according to another embodiment of the present invention. In FIG. 3, power supply rail mounting grooves 19a and 19b are provided in the first insulator 2a and second insulator 2b of the gun barrel outer cylinder 1, and this power supply rail mounting #19
a, 19b, the first sliding surface 20a.

20b1 Second sliding surface 21a, 21b, third sliding surface 22a
s 22J Multi-sided power supply rails 24a, 24b provided with fourth sliding surfaces 23a, 23b are installed, and insulation wedges 25 are installed on the second sliding surfaces 21a, 21b and fourth sliding surface 23a, 123b on both sides of the multi-sided power supply rails 24a, 24b. a% 25
b % 25 C % 25 d installed and firing hole 4
It consists of

The above implementation row has a first sliding surface 20a1, a second sliding surface 21a1, a first sliding surface 20a1 and a second sliding surface 21a1 on one power feeding rail, for example, the multi-sided power feeding rail 24a.
Since four power supply running surfaces such as the third running surface 22a1 and the fourth running surface 23a are provided, there is a four-sided running compared to the two-sided running shown in the implementation rows of FIGS. 1 and 2, and more running surfaces are provided. Since it can be used interchangeably, the functionality of the power supply rail itself can be greatly improved.

Furthermore, power supply rails as shown in FIGS. 4 and 5 are conceivable.

Rail energizing launchers are devices that instantaneously energize a projectile with a large current ranging from 100,000 amperes to several hundred thousand amperes to launch the projectile, so damage to the rails is possible due to sliding friction and power supply impact. Considering the wear and tear of the power supply rail, an effective one with a long life is required. An effective material that satisfies these conditions is a conductive cemented carbide power supply rail that does not generate spatter adhesion or oxide film due to power supply impact or sliding friction.

In FIG. 4, an insulator 2a is placed inside the gun barrel outer cylinder 1.

2b, and a copper rail 3 is placed on these insulators 2a, 2b.
a, 3b and composite power supply rails 5a, 5b coated with ultra-low-resistance conductive ultra-hard gold 44a, 4b are arranged, and the firing hole 6
are composed of insulators 2a, 2b and cemented carbide 4a, 4b.

With this configuration, there is no problem of rail damage such as spatter adhesion or oxide film formation on the sliding surface of the power supply rail.
Furthermore, since it is made of cemented carbide, there is no wear and tear on the rail, which not only extends the life of the power supply rail but also greatly improves the continuous firing function of the projectile. In addition, if it is extremely difficult to develop a conductive cemented carbide without oxide film or spatter adhesion, a plurality of pairs of power supply rails 8a, 8b, 8c, etc. 3d, and depending on the damage, the t source terminal of the power supply rail may be switched and the rail used may be replaced. This method complicates the arrangement structure of the power supply rails, but increases the ease of use.

〔Effect of the invention〕

According to the present invention, even if the rail sliding surface on which the projectile slides while being fed is damaged, it can be quickly repaired without having to manufacture a new feeding rail, and the life of the single feeding rail can be extended several times.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a gun barrel showing a rail energizing firing device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a gun barrel showing a second embodiment of the present invention, and FIGS. 3 to 5 FIG. 3 is a cross-sectional view of a gun barrel of a rail energizing launcher showing a third embodiment of the present invention. 1... Gun barrel outer cylinder.

Claims (1)

[Claims] 1. A cylindrical outer cylinder, a first power supply rail provided inside the cylindrical outer cylinder, and a second power supply rail disposed in parallel with the first power supply rail, and the first power supply rail and the second power supply rail are arranged in parallel to the first power supply rail. In a rail energizing firing device comprising a cylindrical firing hole configured by embedding a first insulator and a second insulator between the power supply rails, and a projectile attached to the cylindrical firing hole, the first insulator the first power supply rail and the second power supply rail embedded in the body and the second insulator, a power supply sliding surface on which the projectile is supplied with power, and an auxiliary sliding surface that becomes the power supply sliding surface when the power supply sliding surface is damaged. A rail energizing launcher characterized by comprising: