JP2682471B2 - Underwater sensor with stable wings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater sensor which is hung by a cable from a ship, an aircraft or the like, sinks to a considerable depth in the sea, and then is lifted up and recovered at sea.
In particular, the present invention relates to an underwater sensor having a stabilizing wing that stably maintains the underwater sensor in a posture with low resistance during both subsidence and lifting.

[0002]

2. Description of the Related Art A submarine sensor that is suspended from a ship or aircraft by a cable, sunk to a considerable depth in the sea, performs underwater exploration, etc., and is then salvaged and collected in the sea. In order to promote the realization and wide-ranging exploration, it is required to shorten the subsidence / lifting time of the undersea sensor, which is not directly related to the work of the undersea sensor.

Here, in order to shorten the subsidence / lifting time of the underwater sensor, the underwater sensor itself is formed by a hydrodynamic structure that minimizes the resistance of water, or the hanging cable of the underwater sensor is pulled up. Greater traction force and
It is an important factor to keep the posture of the underwater sensor at the time of salvage in the sea vertically.

That is, since the undersea sensor is generally hung only by a flexible cable, when it is submerged and lifted in the sea at high speed, the posture of the undersea sensor is generated by the fluid force generated by the water flow around the undersea sensor. Becomes unstable. Therefore, even if the underwater sensor itself is formed by a hydrodynamic structure with the least water resistance, if the underwater sensor is tilted to the left or right, the fluid resistance will increase accordingly.
As a result, a lot of time is required for sinking and lifting,
The hanging cable is also overloaded, and the equipment such as the cable hoisting machine is also enlarged.

In order to avoid such adverse effects, various techniques for providing stabilizing wings on the undersea sensor have been proposed as means for keeping the posture of the undersea sensor stable during subsidence / lifting. For example, in the underwater converter described in Japanese Patent Publication No. 51-10111, a hollow cylindrical member is provided on the upper end side (cable side) of the underwater converter (underwater sensor),
A plurality of fins are provided on the lower end side, and these fins are used as stabilizing wings to maintain the vertical position of the converter in the sea during subsidence / lifting.

Further, Japanese Patent Publication No. 53-11388 discloses a structure in which a movable frustoconical shroud is provided at the end of the undersea sensor on the cable side, and this is used as a stabilizing wing to keep the position of the undersea sensor constant. The body is proposed.

[0007]

However, in the underwater converter described in Japanese Patent Publication No. 51-11111, the stabilizing blades have a structure that maintains only the posture when the converter is lifted. It was not possible to keep the converter stable, and it was difficult to reduce the time for sinking / lifting overall.

Further, even in the structure disclosed in Japanese Patent Publication No. 53-11388, the stabilizer blades are provided only for lifting the sensor in the sea.
It had the same problem as the technique of Japanese Patent No. 1 publication. Further, in both the techniques disclosed in both publications, since the stabilizer blades are fixed, there is a problem that the fluid resistance of the underwater sensor is increased when the underwater sensor sinks.

The present invention has been proposed in order to solve the problems of each of the above conventional techniques.
An object of the present invention is to provide an underwater sensor with a stable wing, which can stably hold the posture of the underwater sensor at the time of lifting and can sink and lift the underwater sensor at high speed and in a short time.

[0010]

In order to achieve the above object, the underwater sensor with stabilizer wings according to claim 1 of the present invention is attached to one end of a suspension cable from a ship or an aircraft to a predetermined depth in the sea. A submerged sensor that is submerged at high speed, and that is submerged at high speed from the sea, is developed by a water flow around the submerged sensor that is generated when the submerged sensor is submerged at the time of subsidence, and the submerged sensor is at the time of retraction. A movable upper stabilizing wing that is stored by the water flow around the undersea sensor that is generated by being lifted, and is stored by the water flow around the undersea sensor that is generated when the underwater sensor is submerged during subsidence, and , When it is lifted up, it may be developed by the water flow around the underwater sensor generated when the underwater sensor is lifted up. It is constituted comprising a lower stable wing formula.

Further, in the undersea sensor with stabilizer blades according to a second aspect of the present invention, the upper stabilizer blade is integrally formed with a side surface on an upper end side of the undersea sensor by engaging with a recess provided in the undersea sensor during storage. When deployed, the surface of the stabilizing wing tilts in the lifting direction of the undersea sensor, and when the lower stabilizing wing is retracted, it engages with a recess provided in the undersea sensor, thereby lowering the lower end side of the undersea sensor. The side surface is integrally formed, and the surface of the stabilizing wing is inclined in the subsidence direction of the undersea sensor when deployed.

Further, in the underwater sensor with stabilizer blades according to a third aspect of the present invention, an upper water flow introduction groove having a flow surface shape communicating with the recess is formed in a vertical direction below a recess with which the upper stabilizer is engaged. The underwater sensor with a stabilizing wing according to claim 4, wherein a lower water flow introduction groove having a flow surface shape communicating with the concave is formed in a direction perpendicular to an upper side of the concave with which the lower stabilizing wing engages. The submarine sensor has a streamlined outer shape in the sinking direction and / or the lifting direction.

[0013]

According to the underwater sensor with a stabilizer according to the present invention having the above structure, when the underwater sensor sinks, the upper stabilizer expands and the lower stabilizer is retracted. Retained, the undersea sensor sinks vertically. On the other hand, when the underwater sensor is lifted, the upper stabilizer is retracted and the lower stabilizer is deployed, so that the lower stabilizer maintains the attitude of the underwater sensor and the underwater sensor is lifted vertically.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an underwater sensor with a stabilizer wing according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an underwater sensor with a stabilizer wing according to an embodiment of the present invention.
(A) shows the time of sinking, (b) shows the time of withdrawal. 2 is a partially enlarged cross-sectional view of the upper and lower stabilizers of the underwater sensor shown in FIG. 1A, and FIG. 3 is a part of the upper and lower stabilizers of the underwater sensor shown in FIG. 1B. It is an expanded sectional view.

As shown in these figures, 1 is an underwater sensor, and a suspension cable 2 is connected to the upper end portion thereof. The underwater sensor 1 is hung down from a ship, an aircraft or the like not shown by this hanging cable 2, and similarly the hanging cable 2 is opened and hoisted by a cable hoist not shown to sink in the sea. Be lifted.

Further, as shown in FIG. 1, the underwater sensor 1 has a hydrodynamic structure in which the water resistance is minimized in order to reduce the fluid resistance of the underwater sensor 1 itself. . That is, the underwater sensor 1 has a columnar shape that is long in the vertical direction, and has an upper end and a lower end each formed in a streamlined shape.

The upper stabilizers 3 and the lower stabilizers 5 are attached along the streamlined inclined surfaces of the upper and lower ends. The upper stabilizer 3 and the lower stabilizer 5 form the end side surface of the undersea sensor 1, respectively, and are integrated with the undersea sensor 1 in a stored state.

As shown in FIGS. 2 and 3, the upper stabilizer 3 engages with a recess 1a formed on the upper end side of the underwater sensor 1 and is retractably stored outside the underwater sensor 1 in the horizontal direction. Then, when it is stored, it forms a part of the side surface of the underwater sensor 1 and is formed integrally with the underwater sensor 1.

That is, the upper stabilizer 3 has a wing portion 3a forming a side surface of the undersea sensor 1, and a guide hole 1b formed inside the recess 1a for supporting the wing portion 3a from the back surface.
And a base portion 3b movably engaged with the base portion 3b.
By moving b inside the guide hole 1b, the wings 3a
Are deployed in the horizontal direction outside the underwater sensor 1.

Since the wing portion 3a forms a part of the streamlined inclination of the side surface on the upper end side of the undersea sensor 1, as shown in FIG. 3, the surface is in the pulling direction (cable 2 side) at the time of deployment. The water flow, which is inclined, makes it easy for a water flow, which will be described later, to hit the surface of the wing portion 3a during lifting. In the present embodiment, the wing portion 3a has a configuration in which the side surface of the undersea sensor 1 is vertically divided into two parts, but it may be divided into three or four parts. Further, only a part of the side surface of the underwater sensor 1 may be the wing portion 3a.

The base portion 3b is formed with a stopper at its end portion which comes into contact with the inside of the opening portion of the guide hole 1b so that the engagement with the guide hole 1b does not come off during the expansion. Further, in this embodiment, a gap is provided between the base portion 3b and the inner wall of the guide hole 1b so that the movement of the guide hole 1b is not hindered by the resistance of water, but instead of this, a stopper of the base portion 3b is used. You may make it form the through-hole for water drainage.

Reference numeral 4 denotes an upper water flow introduction groove, which is formed in a flow surface shape which communicates with the concave portion 1a in the lower vertical direction of the concave portion 1a with which the upper stabilizer 3 is engaged. That is, at the time of subsidence,
A water flow, which will be described later, is introduced into the upper water flow introduction groove 4 to flow into the recess 1 a and hit the back surface of the blade portion 3 a of the upper stabilizer blade 3.

As shown in FIGS. 2 and 3, the lower stabilizer 5 has the same structure as the upper stabilizer 3, and includes a blade portion 5a forming a side surface on the lower end side of the undersea sensor 1 and a blade portion 5a. Base 5b supported from the back side and movably engaged with the guide hole 1d
The wing 5a is engaged with the recess 1c and is integrated with the undersea sensor 1. And, at the time of deployment, the wing portion 5a
The surface of the blade tilts in the sinking direction (the side opposite to the cable 2), so that the water flow easily hits the surface of the blade portion 5a during lifting.

Reference numeral 6 denotes a lower water flow introduction groove, which has the same relationship as the upper water flow introduction groove 4 with respect to the upper stabilizer vane 3, and is formed vertically above the concave portion 1c with which the lower stabilizer vane 5 engages.
It is formed in a flow surface shape that communicates with. Then, at the time of lifting, the water flow is guided to the lower water flow introduction groove 6 and hits the rear surface of the blade portion 5a of the lower stabilizing blade 5.

Next, the operation of the submergence / retraction mechanism of the underwater sensor of this embodiment having the above-mentioned structure will be described. First, at the time of subsidence, as shown in FIG. 1A, the submerged sensor 1 is submerged from the upper side to the lower side, so that a flow of water relatively from the lower side to the upper side of the subsea sensor 1 is generated. This water flow is guided to the upper water flow introduction groove 4,
The upper stabilizing wings 3 are pushed outward and deployed.

That is, the flow of water guided to the upper water flow introduction groove 4 flows into the recess 1a (see arrow A shown in FIGS. 1 (a) and 2), and this water flow is the back surface of the blade portion 3a of the upper stabilizer blade 3. As a result, the fluid force acts on the outer horizontal direction of the undersea sensor 1. As a result, the base portion 3b becomes the guide hole 1b.
The inside is moved to the outside, and the upper stabilizing wing 3 is deployed in the outside horizontal direction.

At the same time, the lower stabilizer 5 is retracted by the same water flow. That is, the flow of water hits the outer surface of the lower stabilizer 5 (the surface of the blade 5a) (see FIG.
(A), see arrow B in FIG. 2), and as a result, the fluid force acts in the horizontal direction inside the underwater sensor 1. As a result, the base portion 5b moves inward in the guide hole 1d, and the lower stabilizing wing 5 is stored.

In this way, the upper stabilizing vane 3 positioned rearward with respect to the traveling direction of the undersea sensor 1 is deployed, and the lower stabilizing vane 5 forward of the traveling direction of the undersea sensor 1 is closed, thereby A resistance force is generated rearward with respect to the traveling direction of the sensor 1. Even when the underwater sensor 1 is tilted by this resistance force, a rotational moment can be generated in a direction to restore the underwater sensor 1 in a straight line, so that the underwater sensor 1 can be maintained in the vertical direction and the underwater sensor 1 can be stabilized. Can sink.

Next, at the time of withdrawal, as shown in FIG. 1 (b), the underwater sensor 1 is withdrawn from below to above, so that, contrary to the above-mentioned subsidence, the underwater sensor 1 is brought down from above. A flow of water towards it occurs, which causes the upper stabilizer 3 to be retracted.

That is, the water flow hits the outer surface of the upper stabilizer 3 (see arrow C in FIG. 1B), and as a result, the fluid force acts in the horizontal direction inside the undersea sensor 1.
As a result, the base portion 3b moves in the guide hole 1b, and the upper stabilizer 3 is stored.

At the same time, the lower stabilizer 5 is developed by the same water flow. That is, the water flow guided to the lower water flow introduction groove 6 flows into the concave portion (see the arrow D shown in FIG. 1 (b) and FIG. 3), and this water flow hits the back surface of the blade portion 5a of the lower stabilizer blade 5 and the hydrodynamic force is exerted in the sea. It acts in the horizontal direction outside the sensor 1.
As a result, the base portion 5b moves in the guide hole 1d to deploy the lower stabilizing blade 5.

In this way, the upper stabilizers 3 located in the forward direction with respect to the traveling direction of the undersea sensor 1 are retracted, and the lower stabilizers 5 located in the rear are deployed, which is the reverse of the above-mentioned subsidence. A resistance force is generated rearward with respect to the traveling direction of the undersea sensor 1. Due to this resistance force, a rotational moment is generated in a direction to straighten the underwater sensor 1, and the underwater sensor is maintained in the vertical direction. As a result, the underwater sensor 1 can be stably pulled up.

As described above, according to the underwater sensor with stabilizer blades of this embodiment, when the underwater sensor sinks, the upper stabilizer blades are deployed and the lower stabilizer blades are retracted. It is kept and sinks vertically in the sea. On the other hand, when the undersea sensor is lifted, the upper stabilizer is retracted and the lower stabilizer is deployed, so that the lower stabilizer maintains the attitude of the sensor and can be lifted vertically in the sea.

As a result, the underwater sensor can sink and lift the sea at high speed in a short time, and the fluid resistance of the sensor at the time of sinking and lifting can be significantly reduced. Such a burden can be reduced and the cable hoisting machine can be downsized.

[0035]

As described above, according to the underwater sensor with a stabilizer wing of the present invention, the attitude of the underwater sensor at the time of subsidence / lifting can be stably held vertically, and the underwater sensor can be operated at high speed and with a short length. Can be subsided and lifted in time.

[Brief description of the drawings]

FIG. 1 is a front view of a sinking / lifting mechanism according to an embodiment of the present invention, in which (a) shows a sinking state and (b) shows a pulling up state.

FIG. 2 is a partially enlarged cross-sectional view of upper and lower stabilizer wings of the underwater sensor shown in FIG. 1 (a).

FIG. 3 is a partially enlarged cross-sectional view of upper and lower stabilizer wings of the underwater sensor shown in FIG. 1 (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Underwater sensor 2 ... Suspension cable 3 ... Upper stabilizer vane 4 ... Upper water flow introduction groove 5 ... Lower stabilizer vane 6 ... Lower water flow introduction groove

Claims (4)

(57) [Claims] 1. An underwater sensor that is attached to one end of a suspension cable from a ship or an aircraft and sinks at a high speed to a predetermined depth in the sea, and is pulled up at a high speed from the sea. And a movable upper stabilizing wing that is stored by the water flow around the underwater sensor that is developed by the water flow around the underwater sensor and that is generated when the underwater sensor is lifted during lifting. , Is stored by the water flow around the underwater sensor generated when the underwater sensor is submerged during subsidence, and is expanded by the water flow around the undersea sensor generated when the underwater sensor is pulled up during lifting. An underwater sensor with a stabilizing wing, comprising: a movable lower stabilizing wing. 2. The upper stabilizer is integrally formed with a side surface on an upper end side of the undersea sensor by engaging with a recess provided in the undersea sensor when stored, and when unfolded,
The surface of the stabilizing wing is inclined in the lifting direction of the underwater sensor, and the lower stabilizing wing is integrally formed with the side surface on the lower end side of the underwater sensor by engaging with a recess provided in the underwater sensor during storage. 2. The undersea sensor with a stabilizer wing according to claim 1, wherein the surface of the stabilizer wing inclines in a subsidence direction of the undersea sensor during deployment. 3. An upper water flow introduction groove having a flow surface shape communicating with the recess is formed in a lower vertical direction of the recess with which the upper stabilizer is engaged, and an upper side of the recess with which the lower stabilizer is engaged is formed. The underwater sensor with a stabilizer wing according to claim 2, wherein a lower water flow introduction groove having a flow surface shape communicating with the recess is formed in a vertical direction. 4. The submarine sensor has an outer shape in a sinking direction and / or
Or repatriation direction form a streamlined shape claim 1, 2 or 3 Symbol
Stable winged undersea sensor mounting.