JPH0926300A - Wing stretching mechanism of missile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize secure operation control by disposing a rotary shaft of a wing body inclined so as for it to be stretched in the direction of flying with respect to the axis of a missile, structure body. SOLUTION: A rotary shaft 12 of a wing body 11 is rotatably disposed on a missile 10 having an inclination angle α expanding in the direction of flying with respect to the axis of the missile. Further, a spring structure 13 is assembled such that a biassing force is applied in the opening direction of the wing, and the spring mechanism is folded and accommodated at an expansion position and is mounted on a shooting bench. Once the missile 10 is shot, a biassing force of the spring mechanism 13 is applied in the direction of the expansion of the wing, and simultaneously relative air following the flying is applied to the wing body 11 at an incident angle βwith respect to the machine axis whereby the insident angle β is reduced by the inclination angle α of the rotary shaft 12 of the wing body 11, and force preventing rotating force in the expansion direction is correspondingly produced. Accordingly, only with the biassing force capable of cancellation of the foregoing force secure wing expansion operation of the wing body 11 is ensured, and hence the spring mechanism 13 is miniaturized and further highly reliable secure wing expansion operation is ensured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projectile such as an anti-aircraft missile, and more particularly to an opening wing mechanism used to open a wing such as an open / close tail fin to a predetermined position.

[0002]

2. Description of the Related Art Conventionally, in a wing opening mechanism for a flying body of this type, as shown in FIGS. 3 and 4, the rotary shaft 2 of the wing body 1 is arranged substantially parallel to the body axis of the flying body 3. A spring mechanism 4 for opening the blade is attached to the rotating shaft 2. Then, the projectile body 3 is mounted on a launch pad (not shown) against the biasing force of the spring mechanism 4. 3 When the flying body main body is launched from a launch pad (not shown) and starts flying, the wing body 1 of the flying body main body 3 is rotationally biased from the closed position to the open position by the spring mechanism 4 and is thus propelled. 3 is provided at a predetermined position, and is used for stable flight of the flying body 3 and the like.

However, in the above-described flying body wing opening mechanism, in order to realize the reliable opening operation of the wing body 1, the spring mechanism 4 is provided in consideration of the disturbance such as a side wind applied to the flying body body 3 during flight. Since it is necessary to set the urging force of No. 2 to be relatively large, there is a problem that if the reliability of operation control is increased, the size becomes large and the weight is increased. In particular, such a problem is serious because the weight is strongly required to be reduced in order to increase the speed of the flying object.

[0004]

As described above, the conventional wing opening mechanism for a flying object has a problem that it becomes large in size and heavy in weight when realizing highly reliable operation control. The present invention has been made in view of the above circumstances, and provides a wing opening mechanism for a flying object, which has a simple structure, can realize reliable operation control, and can promote miniaturization and weight reduction. The purpose is to

[0005]

According to the present invention, there is provided a flying body main body, which has a rotating shaft tilted so as to spread in a flight direction with respect to a body axis, and is closed before the flying of the flying body main body. An open / close mechanism for the flying object was constructed with a wing body that controls the position.

According to the above construction, when the inclination of the rotation axis of the blade body is α, the rotating force in the blade opening direction due to α is applied to the blade body, so that relative wind that impedes the opening operation is applied to the blade body. Even when applied to the blade main body at the incident angle β, the force that interferes with the blade opening operation due to β is canceled by the effect of α, and the force that interferes with the rotation in the opening direction can be reduced to that due to (β−α). Here, if it is set so that α> β,
(Β−α) is negative, that is, the turning force in the opening direction is superior, so that the opening operation of the blade body can be reliably performed.

Further, according to the present invention, there is provided a main body of the flying body, which has a rotating shaft tilted so as to spread in the flying direction with respect to the axis of the body, and which opens and closes the closed position before the flying of the main body of the flying body. A wing opening mechanism for a flying object was configured by including a free wing main body and an urging means that urges the wing main body in the opening direction and opens the wing main body in a state where the flying body main body is flying. .

According to the above construction, when relative wind is applied to the wing body at an incident angle β with respect to the body axis of the flying body main body, the inclination angle of the rotation axis of the wing body is α The incident angle β is reduced by the inclination angle α of the rotation axis of the blade body, and the force that prevents the rotation in the opening direction is only (β−α). Therefore, only by applying an urging force in the opening direction by (β-α), the wing body can be reliably opened, and the urging means can be downsized and the blade can be released reliably and reliably. The operation is realized.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a wing opening mechanism for a flying object according to an embodiment of the present invention. The flying object main body 10 includes a rotary shaft 12 of a wing main body 11.
Is rotatably arranged with an inclination angle α that spreads in the flight direction with respect to the body axis. The wing body 11 is assembled and arranged so that the spring mechanism 13 applies an urging force to the rotating shaft 12 in the opening direction, and the wing body 11 is placed at the closed position of the projectile body 10 against the urging force of the spring mechanism 13. It is folded and accommodated and mounted on a launch pad (not shown).

In the above structure, the flying body 10 is mounted on the launch pad (not shown) with the wing body 11 folded in the closing direction against the biasing force of the spring mechanism 13. When the projectile body 10 is launched from the launch pad (not shown), the urging force of the spring mechanism 13 is applied to the wing body 11 in the opening direction. At the same time, the wing body 11 is provided with relative wind accompanying the flight. This relative wind is applied to the blade main body 11 as a rotational force in the opening direction by the action of the inclination angle α of the rotary shaft 12, and cooperates with the biasing force of the spring mechanism 13 to open the blade main body 11 in the open position. Turn to.

When the relative wind is applied to the airframe axis of the flying body 10 at the incident angle β, the incident angle β is reduced by the inclination angle α of the rotating shaft 12 of the wing body 11. , And (β-α) produces the same effect as the force that impedes the turning force in the opening direction is generated. Therefore, as the urging force of the spring mechanism 13, the wing opening operation of the wing body 11 is performed only by providing the urging force capable of canceling the force that impedes the turning force in the opening direction by (β−α).

As described above, in the wing opening mechanism of the flying body, the rotating shaft 12 of the wing body 11 is arranged on the flying body body 10 so as to be inclined with respect to the body axis in the flying direction. The wing body 11 is configured to be biased in the opening direction by the spring mechanism 13.

According to this, when the relative wind is applied to the wing body 11 at the incident angle β with respect to the body axis of the flying body 10,
The incident angle β is reduced by the inclination angle α of the rotating shaft 12 of the blade body 11, and a force that impedes the turning force in the opening direction is generated by (β−α). Therefore, the wing body 11 can be reliably opened by only providing the biasing force capable of canceling the force that impedes the rotational force in the opening direction by (β−α), and the spring mechanism 13 can be downsized. After achieving this, reliable and reliable opening operation is realized.

In the above embodiment, the case where the spring mechanism 13 is assembled and arranged on the rotary shaft 12 of the blade body 11 has been described, but the invention is not limited to this, and for example, the incident angle of relative wind can be set. When β can be set smaller than the inclination angle α of the rotating shaft 12, highly reliable blade opening operation can be performed without providing the spring mechanism 13.

Further, the inclination angle α of the rotating shaft 12 causes the inertial force applied to the blade main body 11 to act as a turning force for promoting the blade opening. That is, when there is a forward flight direction acceleration applied to the flying body 10,
An inertial force F having a magnitude represented by the product of the wing body mass and the flight direction acceleration is generated in the direction opposite to the flight body direction acceleration, and a component Fsinα of the inertia force F perpendicular to the rotation axis is the rotational force in the opening direction. It acts as a power source to promote the opening of wings.

Therefore, the present invention is not limited to the above-described embodiment in which only the effect of reducing the incident angle of the relative wind is focused.
It is also possible to positively utilize the above-mentioned action of promoting the blade opening by the inertial force.

For example, a weight member is attached to the wing body 11 to increase the mass of the wing body 11, and as a result, the increased inertial force of the wing body 11 is positively used to realize the opening blade. May be. In this case, the weight member is configured to separate from the wing body 11 at the open position in conjunction with the wing body 11 opening operation. This allows
Since the mass increase due to the weight member is only in the initial stage of flight, a more effective effect is expected in terms of the reliability of the opening operation without adversely affecting the flight characteristics.

As a means for removing the weight member,
It is possible to use the impact when the wing body 11 is opened, the air resistance during flight, or the amount of heat generated by aerodynamic heating. Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, and various other embodiments can be implemented within the scope not departing from the gist of the present invention.

[0019]

As described above in detail, according to the present invention, the structure of the flying wing of the flying object is simplified, the reliable operation control can be realized, and the miniaturization and the weight reduction can be promoted. A mechanism can be provided.

[Brief description of drawings]

FIG. 1 is a diagram showing the concept of a wing opening mechanism for a flying object according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which FIG. 1 is viewed from the front side.

FIG. 3 is a view showing the concept of a conventional wing opening mechanism for a flying object.

FIG. 4 is a diagram showing a state viewed from the front side of FIG.

[Explanation of symbols]

 10 ... the flying body. 11 ... Wing body. 12 ... Rotation axis. 13 ... Spring mechanism.

Claims (4)

[Claims] 1. A wing body which is provided in a flying body and has a rotating shaft tilted so as to spread in a flight direction with respect to a body axis, and which can be opened and closed to control a closed position before the flying of the flying body. A wing opening mechanism for a flying object. 2. A wing body, which is provided on the flying body main body, has a rotating shaft tilted so as to spread in a flight direction with respect to an axis of the aircraft, and can be opened and closed to control a closed position before the flying of the flying body main body. And a wing opening mechanism for urging the wing main body in the opening direction to open the wing main body in a state in which the main body of the flying body is flown. 3. The aircraft opening / closing mechanism according to claim 1, wherein a weight member is provided on the wing body. 4. The wing opening mechanism for a flying vehicle according to claim 3, wherein the weight member is coupled to the wing body at a closed position and is separated at an open position controlled by the wing body.