JPH07101160B2 - Canister for missile - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a missile canister.

[0002]

2. Description of the Related Art Missile canisters are
It is a missile storage cylinder / missile launching cylinder, and the required performance is generally strength that can withstand storage, transportation, or launching. Further, a multiple-mounted canister mounted on a vehicle is required to be lightweight. As a canister of this type, an aluminum single plate structure has been put into practical use. However, in such a canister for a missile having a single aluminum plate structure, there is a limit to weight reduction, and there is a demand for a lighter canister for a missile suitable for a multi-unit canister.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional technical problems, and has a structure in which one end of a canister body having a rectangular tubular shape is used as a rear cell cover. A canister for a missile that covers the other end with a front cell cover and stores a missile inside, wherein the canister body has four faces each having a central portion in the central axis direction. A honeycomb body that is bulged so as to extend to give a curvature, an inner surface coating layer made of fiber reinforced plastic formed on the inner surface of the honeycomb body, and a filament winding method on the outer surface of the honeycomb body having the curvature. And a fiber-reinforced plastic outer surface coating layer formed in 1 .. Then, the reinforcing frame can be fitted onto the outer periphery of the outer surface covering layer at predetermined intervals in the central axis direction.

[0004]

The internal pressure acts on the canister body of such a missile canister due to its use, and it tends to bulge outward so as to bulge. However, this canister body is composed of a honeycomb body in which a central portion of each surface is bulged so as to extend in the direction of the central axis to give a curvature, and an inner surface coating layer made of fiber reinforced plastic formed on the inner surface of the honeycomb body. And, since it has a Saint-German structure having a fiber reinforced plastic outer surface coating layer formed by the filament winding method on the outer surface of the honeycomb body, the bulging deformation, the inner surface coating layer, the honeycomb body and the outer surface coating layer. Therefore, it is well blocked. The honeycomb body functions effectively in terms of light weight and specific strength and specific rigidity. Furthermore, by adjusting the direction of the fibers such as the outer surface coating layer in consideration of the acting direction of the stress caused by the internal pressure, the outer wall of the outer surface coating layer and the like can be made thinner while the bulging deformation of the canister body is well suppressed. can do. The reinforcing frame further suppresses the bulging deformation of the canister body.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 11 show one embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a canister body having a quadrangular tubular body, one end of the canister body 1 is covered by a rear cell cover 2, and the other end is covered by a front cell cover 3 to a missile canister. Is configured. As shown in FIGS. 2 and 3, the canister body 1 includes a honeycomb body 4 made of aluminum, which is a core material forming four surfaces, aramid fiber (nomex) reinforced plastic, etc., and inner and outer coating layers on the inner and outer circumferences of the honeycomb body 4. 5 and an outer surface coating layer 6. The honeycomb body 4 is bulged so that the central portion of each surface thereof extends in the direction of the central axis, and is given a curvature, and the inner surface coating layer 5 made of fiber reinforced plastic is formed on the inner and outer circumferences of the honeycomb body 4. And the outer surface coating layer 6 is formed.

The operation of forming the inner surface coating layer 5 and the outer surface coating layer 6 on the inner and outer circumferences of the honeycomb body 4 will be described with reference to FIGS. 4 to 11. Reference numeral 21 denotes a mandrel, and iron rectangular plates 22 having notches 22a at four corners are arranged to face each other as shown in FIGS. 4 and 5, and both rectangular plates 22 are welded and fixed to a strength member 22b at the outer peripheral edge thereof. With shaft 2 in the center
It has a structure in which 3 is inserted, welded and fixed, and integrally connected. Further, a notch 22c is formed in the center of each side of each rectangular plate 22, and a moving member 24 made of a high-rigidity square member is movably inserted into each notch 22c so that the moving member 24 faces outward. A pushing means 25 for pushing out is attached.

The push-out means 25 includes the notches 2 in the rectangular plate 22.
Bracket 25a fixed inside 2c
And a screw member 25b screwed into the bracket 25a, the moving member 24 can be pushed outward while being guided by the notches 22c by screwing the screw member 25b.

4 made of a light metal (for example, aluminum or aluminum alloy) so as to cover each of the rectangular plates 22.
The four plate members 26 are arranged, and the four plate members 26 have screws 28
They are joined by a stopped angle member 27, and each butted corner portion is filled with an angle member 29 made of a light metal which is movable in the central axis direction of the shaft 23. Thus, the four plate members 26 and the angle members 27 and 29 form a flexible rectangular tubular body.

The canister body 1 is manufactured using the mandrel 21 described above. First, as shown in FIG. 6, the separating agent 3 is applied to the outer surfaces of the four plate members 26 and the angle member 29.
A mold release treatment is performed by applying 0 or the like. On the outer surface of the mandrel 21, a strip made of fiber reinforced plastic is shown in FIG.
The inner surface coating layer 5 is formed by winding and curing as shown in FIG. As shown in detail in FIG. 3, this inner surface coating layer 5 is an inner layer 5a whose inside is made of glass fiber roving resistant to impact.
And the outer side is formed as an outer layer 5b having high-rigidity carbon fiber as roving. Of course, it is also possible to form this inner surface coating layer 5 by the filament winding method.

Next, four honeycomb bodies 4 made of aluminum, aramid fiber reinforced plastic or the like are bonded and fixed to the outer surface of the inner surface coating layer 5 so that the through holes 4a are substantially perpendicular to the outer surface. The bonding operation of the honeycomb body 4 is performed by using a fastening tool 33 as shown in FIG. 8 with an adhesive agent interposed between the honeycomb body 4 and the inner surface coating layer 5. The fastener 33 includes metal plates 33a arranged on the outer surfaces of the opposing honeycomb bodies 4, holding members 33b arranged on the outer surfaces of the respective metal plates 33a at appropriate intervals, and both end portions of the holding members 33b. A bolt member 33c inserted through the nut member 33d and a nut member 33d screwed into the bolt member 33c. The nut member 33d is screwed into the pair of honeycomb bodies 4 facing each other to firmly bond the inner surface coating layer 5 to each other. Let it adhere. The other pair of honeycomb bodies 4 is formed by bonding the pair of honeycomb bodies 4 or using a similar fastener 33 in which the position of the pressing member 33b is shifted.
It adheres firmly to the outer peripheral surface of the inner surface coating layer 5.

The space generated at the abutting corners of each honeycomb body 4 is a filling member 34 made of urethane or aluminum.
Are bonded and filled, and a slight gap generated between the filling member 34 and the honeycomb body 4 is filled with putty. Further, as shown in FIGS. 2 and 9, a thin intermediate coating layer 6a made of fiber reinforced plastic is laminated on the outer surface of each honeycomb body 4, and a resin which also serves as an adhesive is cured. As the intermediate coating layer 6a, a fiber-reinforced plastic layer having highly rigid carbon fibers as rovings is preferable.

Next, in such a mandrel 21, each extruding means 25 is caused to act so that each honeycomb body 4 has a curvature as schematically shown in FIG. That is, the screw member 25
b is screwed into the bracket 25a, and each moving member 24 is extruded outward while being guided by the notch 22c. The four plate members 26, the inner surface coating layer 5, the honeycomb body 4, and the intermediate coating layer 6a The central part of the is pressed outward and bulged so as to extend in the direction of the central axis to give a curvature. At that time, the intermediate coating layer 6a suppresses the separation of each honeycomb body 4 from the inner surface coating layer 5.

In this state, the shaft 23 of the mandrel 21 is rotatably mounted on the filament winding molding apparatus. Then, the honeycomb body 4, the packing member 34, and the intermediate coating layer 6a are provided while being rotationally driven to the mandrel 21.
A roving 37a of carbon fiber, glass fiber or the like is wound on the above by a filament winding method to form a surface coating layer 6b shown in FIGS. As shown in FIG. 11, the roving 37a is guided by the guide rolls 38 and dipped in, for example, a thermosetting molten resin in the resin tank 39, passed through a pair of rolls 40, and is formed on the intermediate coating layer 6a in a predetermined manner. The surface coating layer 6b is formed by winding with tension. As the surface coating layer 6b, roving 37 made of glass fiber resistant to impact is used.
A fiber reinforced plastic layer designated as a is preferred. Due to the intermediate coating layer 6a and the surface coating layer 6b, the outer surface coating layer 6
Is formed. The surface coating layer 6b may be formed of two layers, an inner fiber reinforced plastic layer having glass fibers as rovings and an outer fiber reinforced plastic layer having carbon fibers as rovings.

By winding the roving 37a while applying an appropriate tension, the roving 37a is tightly wound with a sufficient pressing force, and bubbles such as bubbles are formed between the roving 37a and the intermediate coating layer 6a and between the rovings 37a. The surface coating layer 6b having no voids can be formed. When the surface coating layer 6b is formed in this way,
The direction of the roving 37a is determined in consideration of the acting direction of the stress generated by the internal pressure during use as the missile canister.

After curing the surface coating layer 6b, the extrusion means 25
Of the inner surface coating layer 5 from the mandrel 21
The canister body 1 including the honeycomb body 4 and the outer surface coating layer 6 is separated. At the time of this separation, the angle members 29 are pulled out in advance to reduce the outer shape of the mandrel 21. Each surface of the separated canister body 1 has a slight curvature and bulges outward.

On the outer surface of the canister body 1 having such a structure, a reinforcing frame 7 made of carbon fiber reinforced plastic is externally fitted at predetermined intervals in the central axis direction and fixed by adhesion or bolting. The front fixing frame 8a and the rear fixing frame 8b made of aluminum are fixed to each other by the same means. Then, the upper launching rail 11 and the lower launching rail 12 are fixedly installed inside the canister body 1 while being supported by the respective reinforcing frames 7, the front fixed frame 8a and the rear fixed frame 8b. The missile 10 is supported by the upper and lower launching rails 11 and 12, and one end of the canister body 1 is covered by the rear cell cover 2 and the other end is covered by the front cell cover 3. A missile canister that stores the A flat plate 7a made of fiber reinforced plastic or aluminum is fixed to the lower surfaces of the two reinforcing frames 7, 7 in the central portion to serve as a locking portion for a forklift. 9 is
It is a removable access cover.

Due to its use, the canister body 1 of such a missile canister is subjected to a pressure of 10 kgf / cm ² or less, and tends to bulge and deform so as to bulge outward. However, this bulging deformation is caused by the inner surface coating layer 5, the honeycomb body 4, the intermediate coating layer 6a, and the surface coating layer 6b.
Satisfactorily blocked. Further, since the honeycomb body 4 is mounted so that the through holes 4a are substantially perpendicular to the outer surfaces, it is effective in terms of lightweight and specific strength and specific rigidity. Furthermore,
By adjusting the direction of the fibers of the outer surface coating layer 6 and the like in consideration of the action direction of the stress generated by the internal pressure, the outer surface coating layer 6 and the like can be thinned and the canister body 1 can be swelled and deformed well. Can be suppressed.

[0018]

As can be understood from the above description,
According to the canister for missiles of the present invention, since the canister body has the San deer structure, it is possible to realize weight reduction while ensuring almost the same strength as the conventional canister for missiles made of aluminum, and a multiple-unit canister. Suitable for, the central portion of each surface of the honeycomb body is outwardly bulged so as to extend in the direction of the central axis to give a curvature to form the outer surface coating layer, so that voids such as bubbles The outer surface coating layer does not exist and has excellent specific rigidity. In addition, since the outer surface of the canister body is a fiber reinforced plastic, it has excellent corrosion resistance and weather resistance.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a missile canister according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a part of the canister body in an enlarged manner.

FIG. 3 is a sectional view showing a part of the canister body in an enlarged manner.

FIG. 4 is a view showing a mandrel which is also used for manufacturing the canister body.

FIG. 5 is a sectional view showing a mandrel with a part thereof omitted.

FIG. 6 is an explanatory view of the operation of the mandrel.

FIG. 7 is an explanatory view of the operation of the mandrel.

FIG. 8 is an explanatory view of the operation of the mandrel.

FIG. 9 is an explanatory view of the operation of the mandrel.

FIG. 10 is an explanatory view of the action of the mandrel.

FIG. 11 is a perspective view showing the manufacturing process of the canister body in the same manner.

[Explanation of symbols]

1: canister body, 2: rear cell cover, 3: front cell cover, 4: honeycomb body, 4a: through hole, 5: inner surface coating layer, 5a: inner layer, 5b: outer layer, 6: outer surface coating layer, 6
a: intermediate coating layer, 6b: surface coating layer, 7: reinforcing frame, 8
a: front fixed frame, 8b: rear fixed frame, 10: missile,
11: upper launching rail, 12: lower launching rail.

Claims (2)

[Claims] 1. A missile canister in which one end of a quadrangular tubular canister body is covered by a rear cell cover and the other end is covered by a front cell cover, and a missile is housed therein. A honeycomb body in which the canister body is bulged to give a curvature so that central portions of the respective surfaces forming the four surfaces respectively extend in the central axis direction, and a fiber-reinforced plastic formed on the inner surface of the honeycomb body. A canister for missiles, comprising: an inner surface coating layer made of fiber; and an outer surface coating layer made of fiber reinforced plastic formed on the outer surface of the honeycomb body having the curvature by a filament winding method. 2. The missile canister according to claim 1, wherein a reinforcing frame is fitted onto the outer periphery of the outer surface coating layer at a predetermined interval in the direction of the central axis.