JPH058233Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a device for lifting and retrieving sunken objects while self-propelled, and in particular, a self-propelled retrieval device suitable for use in the rescue of submersibles. Regarding.

[Conventional technology]

Generally, when a submersible is rescued, hoisting and retrieving means as shown in FIGS. 7 and 8 are used.

That is, as shown in FIG. 7, the guide cable 5
The position of the submarine 51 in distress is notified to a mother ship 53 on the sea by the buoy 52 which has been floated to the sea surface by detaching the rescue buoy 52 with four attachments.

On the other hand, as shown in FIG. 8, the mother ship 53 retrieves the rescue buoy 52 and uses the guide rope 54 attached to the rescue buoy 52 as a guide.
Fitting alloy 5 coupled to the tip of the lifting cable 55 on 3
6 is fitted with a cable stopper 57 provided at the base of the guide cable 54 of the submersible vessel 51, and the hoisting and retrieving cable 55 is coupled to the submersible vessel 51.

Thereafter, the winch 58 on the mother ship 53 winds up the hoisting and retrieval line 55, and the submersible vessel 51 is floated to the sea and recovered.

[Problem that the invention attempts to solve]

However, while conventional evacuation methods for submersible rescue are effective for submersibles that submerge in shallow waters, they are not effective for submersibles that submerge in deep waters.
In order to float the rescue buoy 52 from the deep seabed to the sea surface, a long guide cable 54 commensurate with the depth is required. In particular, when a water current (tidal current) acts on this guide cable 54, the guide cable 54 receives a lateral force. As a result, the guide cable 54 and the rescue buoy 52 are swept away laterally, and the force of the water flow at this time is particularly strong against the rescue buoy 5.
2 into the water, the guide cable 54 cannot be floated above the water unless the rescue buoy has a large buoyancy.

Therefore, a large rescue buoy with large buoyancy must be installed inside the submersible 51, and as a result, the submersible itself becomes larger as the buoy becomes larger. The problem is that the ship's maneuverability is impaired.

The present invention is an attempt to solve the above-mentioned problems, and it is possible to reliably search for and recover the sunken object from the mother ship side without installing a rescue buoy to the sunken object on the seabed. It is an object of the present invention to provide a self-propelled lifting and retrieving device that can reduce the size of a submerged object as an object to be lifted and retrieved.

[Means for solving problems]

Therefore, the self-propelled lifting and recovery device of the present invention is equipped with a propulsion mechanism for approaching a submerged object on the seabed, an engagement mechanism that can engage with the submerged object, and a A weight attachment mechanism comprising: a buoyancy body for levitating the sinking object in an engaged state; and a weight for overcoming the buoyancy of the buoyancy body and sinking; the weight is detachably attached to the buoyancy body. and a weight release mechanism that releases the weight attachment mechanism and removes the weight after the engagement mechanism engages with the sinking object, and a weight removal mechanism that releases the weight attachment mechanism and removes the weight after the engagement mechanism engages with the sinking object. It is characterized by being provided with the above-mentioned propulsion mechanism.

[Effect]

In the above-mentioned self-propelled lifting and recovery device of the present invention, the weight attachment mechanism is equipped with a weight that overcomes the buoyancy of the buoyant body, and it sinks into the water by entering the water, and is further operated by the propulsion mechanism to propel itself underwater. while searching for submerged objects on the ocean floor. When the sunken object is found, the device engages with the sunken object using the engagement mechanism, and then releases the attached weight by operating the weight release mechanism. Then, the buoyant force of the buoyancy body causes the sunken object on the seabed to float up to the sea surface.

In addition, the weight after detachment can propel itself by the above-mentioned propulsion mechanism installed on the weight.
As a result, the same weight is recovered.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. Figures 1 to 6 show a self-propelled lifting and recovery device as an embodiment of the present invention, and Figure 1 shows a partially cutaway view. Front view (direction arrow view in Figure 2),
Figure 2 is a schematic perspective view of the device, Figure 3 is a sectional view taken along the - arrow in Figure 1, Figure 4 is a side view of the engaging alloy, and Figure 5 shows how this device is mating with a submersible on the seabed. FIG. 6 is a schematic diagram showing a process of lifting and recovering a submersible using this device.

As shown in FIGS. 1 and 2, this hoisting and recovery device 1 is
The main body 1a is composed of the buoyant body 13 and a weight 14 provided below the buoyant body 13, the weight 14 of the main body 1a is provided with a propulsion mechanism 15, and the buoyant body 13 of the main body 1a is provided with a An engagement mechanism 8 capable of engaging with a submersible vessel 4 as a submerged object is provided.

At the lower left and right edges of the buoyancy body 13 constituting the main body 1a, recesses 13a and 1 are provided as weight attachment parts.
3a is formed, and furthermore, a recess 13b for an engagement mechanism is formed at the center of the lower side of the buoyancy body 13 so as to straddle the recesses 13a, 13a.

In this recess 13b, a plurality of bearing portions 13c are provided in series to project downward from the lower surface of the buoyant body 13 in the lateral direction of the buoyant body 13. The screw shaft 10 is rotatably mounted on these bearing portions 13c. Note that the screw shaft 10 is prevented from moving in the axial direction with respect to the bearing portion 13c by a stopper (not shown).

The screw shaft 10 extends close to the left and right side surfaces of the buoyant body 13, and has male screw portions 10a, 10a, 10b, 10 at the center and left and right ends.
b is formed. In addition, the male screw portions 10a, 1
0a and the male threaded portions 10b, 10b are each set to be symmetrical with respect to the axial center of the screw shaft 10 (center line of the main body 1a). Male thread part 1
Pieces 11, 11 which are pivotally connected to the force point portion of the locking fitting alloy 8 are screwed into 0a.

The locking-fitting alloy member 8 has a force point at the upper end, a hook portion 8a at the lower end, and a scissor-like shape with a fulcrum at the center. In order to prevent rotation around its axis, both sides thereof are restrained by guide surfaces (not shown) or the like. And frame 11,1
1. As the hook portions 8a, 8a approach each other, the ends of the hook portions 8a, 8a also approach and can be closed together.
Further, when the hook portions 8a, 8a approach the required positions, the screw shaft 10 idles in the top 11, so that the rotational force of the screw shaft 10 does not act on the top 11.
A reduced diameter portion having a required diameter is formed in the screw shaft 10.

On the other hand, pieces 16, 16 with weights 14 are screwed into the male screw portions 10b, 10b, respectively.

The weight 14 has an outer shape corresponding to the recess 13a, and is attached to the buoyant body 13 by screwing into the male threaded portion 10b of the top 16. When attached, the outer surface of the weight 14 is aligned with the outer surface of the buoyant body 13. They are almost flush.

Therefore, the male screw 10b is set to an appropriate length so that the weight 14 can be attached from the end of the screw shaft 10 as described above.

Further, as shown in FIGS. 1 and 3, one of the left and right weights 14, 14 is provided with a locking fitting electric motor 17 with its rotating shaft 17a orthogonal to the direction of the screw shaft 10. The rotating shaft 17a and the screw shaft 10 are connected by a gear device (worm gear) 20. In other words, the gear fitted to the screw shaft 10 and the rotating shaft 17a
The screw shaft 10 can be rotated by the rotational drive of the electric motor 17 for locking and fitting.

As the screw shaft 10 rotates, the top 1
1 and 11 and the pieces 16 and 16 are moved away from each other or closer to each other, so that the hook portions 8a and 8a can be closed and opened, and the weight 14 can be attached to and removed from the buoyant body 13. In other words, this locking and fitting electric motor 17, screw shaft 10, and piece 11
An engagement mechanism with a sinking object is constructed from the locking fitting alloy 8, and a locking fitting electric motor 17 and a screw shaft 10.
and the top 16 constitute a weight attachment mechanism and a weight removal mechanism.

Note that when the locking alloy object 8 is closed and the weight 14 is attached to the buoyancy body 13, when opening the locking alloy object 8 and removing the weight 14, The screw shaft 10 is rotated by the drive of the electric motor 17, and the locking fitting alloy 8 is first released by the movement of the piece 11. At this time, the piece 16 is still screwed into the screw shaft 10, and the weight 14 is buoyant. It is connected to the body 13, and further includes an electric motor 1 for connection and fitting.
The length of the male threaded portion 10b is set to be an appropriate amount longer so that the top 16 is detached from the screw shaft 10 when the screw 7 is operated.

Further, the lower width l of the buoyant body is set to be larger than the width of the submersible vessel 4, so that the weight 14 does not become an obstacle to the surfacing of the submersible vessel 14 after the weight 14 is released.

Further, a propulsion mechanism 15 is attached to the outside of each of the weights 14, 14, and the propulsion mechanism 15 is connected to a drive shaft 19 and a propulsion machine oscillation electric motor 18 provided inside the outside of the weight 14. The propulsion mechanism 15 can be rotated around a horizontal drive shaft 19 by driving the propulsion machine head oscillation electric motor 18, thereby causing the propulsion mechanism 15 to move forward and backward with respect to the weight 14 and the buoyant body 13. The tilt is now adjusted.

The propulsion mechanism 15 includes a propeller 15b inside the duct 15a, and a drive system (not shown) that drives the propeller 15b.

A television camera 9 is also provided inside the buoyant body 13, pointing toward the hook portion 8a of the locking alloy member 8 in the recess 13b.
is installed.

Furthermore, as shown in FIG.
A locking metal fitting 7 into which a hook portion 8a is fitted is provided on the upper part of the submersible vessel 4 as a submerged object on the seabed. This locking hardware 7 has a hook portion 8.
A pair of fitting holes 12 are provided on the left and right sides into which the fitting holes 12a and 8a can fit.

In addition, the television camera cable 21 is attached to the television camera 9, the propulsion plane oscillation motor cable 22 is attached to the propulsion machine oscillation electric motor 18, and the locking fitting electric motor cable 22 is attached to the locking fitting electric motor 17. 23 are connected to each other, and the taser cable 2 is composed of a television camera cable 21, a propulsion machine oscillation electric motor cable 22, and a locking fitting electric motor cable 23 (see Figures 5 and 6). .

In addition, in FIG. 5, numeral 5 indicates a crane and 6 indicates a winch.

Since the self-propelled lifting and retrieval device as an embodiment of the present invention is constructed as described above, the submersible vessel 4 that is in distress and sunk on the seabed is retrieved in the following manner.

First, as shown in FIGS. 2 and 6, the device 1 is equipped with a weight 14 and is lowered into water from a crane 5 (see FIG. 5) of a mother ship 3 on the ocean. At this time, since the weight 14 is set to overcome the buoyant body 13, this lifting and recovery device 1
sinks to near the bottom of the water. Also, at this time, the Taser cable 2 connected to the lifting and recovery device 1 is connected to the mother ship 3.
It is paid out from the upper winch 6 (see Fig. 5).

The hoisting and recovering device 1 then operates its propulsion mechanism 15 (second
(See figure) while operating the submersible 4 on the ocean floor. At this time, it goes without saying that the propulsion mechanism 15 is appropriately tilted using the propulsion machine head oscillation electric motor 18 (see Fig. 1), and the seabed is searched while moving not only horizontally but also vertically. . In addition, in this search, although not shown, a submarine 4
By providing a sound wave oscillator on the side and a sensor for detecting the sound waves on the lifting and recovery device 1 side, the search for the submersible vessel 4 is made extremely easy by performing this search via the sound waves.

When the lifting and recovery device 1 approaches the submersible 4, the approaching state of the locking hardware 7 and the locking metal fitting 8 is visually confirmed by the television camera 9, and the propulsion mechanism 15 and propulsion machine are visually checked by the television camera 9. The swinging electric motor 18 moves the hoisting and collecting device 1 to a state where the locking hardware 7 and the locking fitting alloy 8 can be fitted.

Then, as shown in FIGS. 1 and 5, the electric motor 17 for locking and fitting is operated to fit the locking hardware 7 to the locking and fitting alloy 8. Further, when the locking and fitting electric motor 17 is operated, the threaded engagement with the male threaded portion 10b of the top 16 is released, and both weights 1
4 and 14 separate from the buoyant body 13. As a result, the lifting and recovering device 1 floats up together with the submersible vessel 4 due to the buoyant force of the buoyant body 13. At this time, the Taser cable 2 is appropriately wound by the winch 6.

In addition, it is appropriately wound up with the winch 6.

The above-mentioned propulsion mechanism 15, electric motor 17 for locking and fitting, and electric motor for swinging the propulsion machine 18 can be operated using the television camera cable 21, the cable 22 for the electric motor for swinging the propulsion machine, and the cable 23 for the electric motor for locking and fitting. This is done by remote control using the operating system on the mother ship 3, which is connected to the mother ship 3 via.

In this way, the submersible 4 can be lifted and retrieved,
A rescue buoy device for the submersible is no longer necessary, and the submersible can be made smaller, thereby improving its underwater maneuverability and making it easier to land and retrieve during normal diving.

In this example, a submersible vessel is used as an example of a submerged object on the seabed, but the present invention also applies to submerged objects such as structures installed on the seabed that are placed on the seabed for a certain period of time and retrieved when necessary. By applying the device,
It can be easily salvaged.

In addition, the detached weight 14 can propel itself by the propulsion mechanism 15 attached to the weight 14, so after the rescue and recovery of the submersible vessel 14, the weight 14
This makes it possible to make the vessel self-propelled to the sea surface and then use the winch 6 to bring it back on board and reuse it, which is economical.

[Effect of idea]

As explained above, the self-propelled lifting and recovery device of the present invention includes a propulsion mechanism for approaching a submerged object on the seabed, an engagement mechanism that can engage with the submerged object, and A buoyancy body for levitating the sinking object when engaged with the sinking object and a weight for sinking by overcoming the buoyancy of the buoyancy body, and the weight can be attached to and detached from the buoyancy body. A weight attachment mechanism for attaching the weight and a weight release mechanism for releasing the weight attachment mechanism and detaching the weight after the engagement mechanism engages with the sinking object, and recovering the weight after detachment. By having a simple configuration in which the above-mentioned propulsion mechanism is installed on the same weight, there is no need to equip the submersible with a rescue buoy device, making it possible to downsize the submersible and also make it possible to avoid deep dives. There is also an advantage that the above-mentioned lifting device can be approached and retrieved easily using weights and a propulsion mechanism on a ship, and by providing a similar locking hardware, it is also possible to retrieve other seabed objects easily. There is an advantage.

Further, the weight after detachment can be propelled by itself by the propulsion mechanism attached to the weight, so it can be recovered and reused.

In this way, the above-mentioned propulsion mechanism is used for both propulsion of the lift and recovery device and self-propulsion of the weight after detachment, so the complexity of the entire device can be suppressed while increasing the efficiency of the recovery work. It has a soothing effect.

[Brief explanation of the drawing]

Figures 1 to 6 show a self-propelled lifting and recovery device as an embodiment of the present invention, and Figure 1 is a partially cutaway front view (view from the direction arrow in Figure 2); Second
The figure is a schematic perspective view, and Figure 3 is the − of Figure 1.
A cross-sectional view in the direction of arrows, FIG. 4 is a side view of the engagement alloy,
Fig. 5 is a schematic diagram showing the state in which this device is mated with a submersible on the seabed, Fig. 6 is a schematic diagram showing a process of lifting and recovering a submersible using this device, and Figs. 7 and 8 are This shows a conventional rescue evacuation system for a submersible, with FIG. 7 being a schematic diagram showing a situation in which a rescue buoy is released, and FIG. 8 being a schematic diagram showing a situation in which a submersible is being rescued and recovered. 1... Lifting and recovery device, 1a... Main body, 2... Taser cable, 3... Mother ship, 4... Submersible, 5...
Crane, 6... Winch, 7... Locking hardware, 8
...Lock fitting alloy, 9...TV camera, 8a...
... Hook part, 9 ... TV camera, 10 ... Screw shaft, 10a, 10b ... Male thread part, 11 ... Top, 12 ... Fitting hole, 13 ... Buoyant body, 13
a, 13b... recess, 13c... bearing section, 14...
...Weight, 15... Propulsion mechanism, 15a... Duct, 15b... Propeller, 16... Top, 17...
...Electric motor for locking and fitting, 17a...Rotating shaft, 18...
...Electric motor for propulsion head oscillation, 19...Drive shaft, 20...
...Gear device, 21...TV camera cable,
22... Cable for electric motor for propulsion machine head oscillation, 23...
...Electric motor cable for locking and fitting.

Claims (1)

[Scope of utility model registration request] A propulsion mechanism for approaching a submerged object on the seabed, an engagement mechanism capable of engaging with the submerged object, and a mechanism for levitating the submerged object while engaged with the submerged object. A weight attachment mechanism comprising a buoyancy body and a weight for overcoming the buoyancy of the buoyancy body and sinking, the weight being removably attached to the buoyancy body, and engagement with the sinking object by the engagement mechanism. a weight release mechanism that releases the weight attachment mechanism and removes the weight after the weight has been removed, and the weight is provided with the propulsion mechanism to recover the weight after removal. Navigational lift and recovery equipment.