JPS5836234B2 - Accommodation/supply device for long body underwater guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a laying machine or a burying machine (hereinafter referred to as a laying/burying machine) on the seabed from a laying ship to a long body such as a submarine cable or a water pipe.

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This relates to a supply device.

The long body underwater guide device is carried on board a laying ship to the site where the long body is laid or buried, and is used by being suspended in the sea like a catenary at the laying or burial site, and during the laying or burying work. In order to keep the angle of entry of the elongated body constant regardless of the water depth, the length of the elongated body suspended in the sea is adjusted, and when the work is completed, it is hoisted onto the laying ship.

Conventional long body underwater guide devices of this type have a structure in which a large number of cylindrical cage-shaped short tubes are aligned and supported by a towline.

In the case of such conventional long-body underwater guidance devices, it is not possible to attach the entire cage-shaped short tube to the towline in advance on the installation ship, and when the towline is pulled out during use, the cage-type short tube is attached to this while pulling out the towline. Since the pipes had to be installed by the operator one by one, the disadvantage was that it was very time-consuming to start using the system.

In addition, when adjusting the length of the long underwater guide device or transporting the cables onto the ship, the operator must remove each cage-shaped short pipe from the towline, which is very time-consuming. There were drawbacks.

In order to improve such drawbacks, the present applicant has proposed a foldable tubular guide body in which a plurality of adjacent guide frames each having outwardly protruding portions at the four corners are connected by a link-type connector, and a guide body for this guide body. We are developing an elongated underwater guidance device with a new structure that has a tow rope that supports the towline along its side so that it can slide freely.

In the case of this device, the device can be folded into a small size in the fully assembled state, so it can be loaded onto a laying ship in the completed state, and therefore, when it is used, it can be simply stretched and delivered, which saves time and effort. It doesn't cost.

In addition, when adjusting the length or collecting and storing the bag, all you have to do is pull it up and fold it, which saves you time and effort.

An object of the present invention is to provide a storage/supply device for a long body underwater guide device that can automatically store such a foldable long body underwater guide device from the sea or conversely supply it into the sea. is to provide.

The present invention provides a foldable tubular guide body in which a plurality of guide frames having hooks projecting outward at four corners are foldably connected by a link-type connecting body, and a folding tubular guide body in which the foldable tubular guide body is slidably connected. In a storage/supply device for a long body underwater guide device that sends out a long body underwater guide device having a structure including a movably supported tow rope into the sea, or conversely pulls the long body underwater guide device out of the sea, the guiding main body is a guide body that is interposed between the upper and lower hook portions of each guide frame on both sides and guides each guide frame; and an elongated guide body feeding mechanism that moves the guide body in an extended state at the location of the guide body. , a guide body folding mechanism that folds the guide body being pulled up and moved by the elongated guide body feeding mechanism at the location of the guide body; and a folding mechanism that moves the folded guide body along the guide body. In contrast to the tatami guide main body feeding mechanism, the extension guide main body feeding mechanism includes an endless chain having a hook hooked on the hook portion of the guide frame to feed the guide main body in an extended state. , the guiding body folding mechanism includes a folding roller that protrudes so as to bend these parts in a direction crossing the guiding body each time the link type connecting body passes when the guiding body is pulled up. and the folding guide main body feeding mechanism is configured to include a feeding endless track that holds the hook part of the guide frame together with the guide body and feeds the guide main body in a folded state. It is.

Such a storage/feeding device for a long body underwater guide device, when sending a folded guide body supported by a guide body into the sea, uses a feeding endless track of the folding guide body feeding mechanism. It is rotated in the normal direction and sent out in the folded state, and the elongated guide main body feeding mechanism at the end hooks the hook part of the guide frame to the hook of the endless chain, and by normal rotation of this endless chain, the guide main body is extended and sent into the sea. send to.

When pulling the guide body out of the sea, reverse the endless chain of the extension guide body feeding mechanism and hook the hook on the hook part of the guide frame to pull the guide body out of the sea, and then move the guide body folding mechanism. Each time the link-type connected body passes through the guide body, a folding roller is projected and each link-type connected body is folded, and the guide body is folded and sent to the folding guide body feeding mechanism, and is supported by the guide body. The guide main body is kept in a folded state on standby at a predetermined position for feeding by a tracker for feeding.

Specific embodiments of the device according to the present invention are shown in FIGS. 1 to 5 below.
This will be explained in detail with reference to the drawings.

The elongated underwater guide device 1 is a foldable tubular guide having a structure in which the four adjacent corners of a rectangular guide frame 2 having outward hooks 6 at the four corners are connected by four link-type connecting bodies 3. It consists of a main body 4 and a tow rope 5 that slidably supports the guide main body 4 along its side surface.

The link type connecting body 3 is constructed by connecting a large number of link arms 3A with link pins 3B, and each link pin 3B at a location corresponding to each guide frame 2 is fixed to the guide frame 2, respectively.

Furthermore, link pins 3B are installed at the four corners of each guide frame 2.
The above-mentioned hook portion 6 is provided by fitting a collar or the like thereto so that it can be freely rotated but cannot be removed.

The tow rope 5 is passed through a support ring 7 protruding from the side surface of each guide frame 2, and supports the guide main body 4 in a slidable manner.

A long body 8 such as a submarine cable or water pipe is sent out into the sea through the guiding body 4 and guided to a laying/burying machine on the seabed.

The storage/supply device 9 of such a long body underwater guide device 1 includes a pair of guide frames 2 that are interposed between the upper and lower hook portions 6 of each guide frame 2 on both sides of the guide body 4 to guide each guide frame 2. a guide body 15; an elongated guide body feeding mechanism 12 for moving the guide body 4 in an extended state, which is supported on the pedestal 10 via a bracket 10 at the location of the guide body 15, for accommodation or supply; a guide body folding mechanism 13 for folding the guide body 4 sent by the feeding mechanism 12 at 150 locations on the guide body when the guide body 4 is accommodated; and the folded guide body 4 is housed or supplied along the guide body 15. The main body is a folding guide main body feeding mechanism 14 that is moved for the purpose of folding.

Each guide body 15 is supported by the brackets 11 on both sides.

The elongated guide main body feeding mechanism 12 has four sets of endless chains 16 that are supported by the bracket 11 and that move the guide main body by sandwiching the hook portion 6 together with the guide body 15.

Each of these endless chains 16 is stretched around the front wheel 1γ.

Moreover, a plurality of hook fittings 18 are attached to each endless chain 16 for hooking onto the hook portion 6 to move the guide main body 4.

The pitch p' of these hooks 18 is the same as the pitch p of the guide frame 2.

Further, each endless chain 16 is selected to have a length such that at least three hooks 18 are lined up in a straight line.

These endless chains 16 are connected to the rotational force of the torque motor 19 through a deceleration and braking mechanism 20, gears, sprockets,
The rotational force is transmitted through a rotational force transmission mechanism 21 such as a chain and is driven to rotate.

Such an elongated guide body feeding mechanism 12 rotates each endless chain 16 counterclockwise on the upper side and clockwise on the lower side in FIG. When the hook 18 is hooked on the hook part 6 and the guide body 4 is sent to the right, and each endless chain 16 is rotated in the opposite direction when the guide body 4 is supplied, the guide body 4 is rotated in the opposite direction.
send to the left.

Since the guide body 4 is slidably supported on the tow rope 5, the tension acting on the guide body 4 during such movement of the guide body 4 does not reach the tow rope 5.

The towline 8 is separately wound up by a winch (not shown) when the guide body 4 is accommodated.

The guide body folding mechanism 13 is driven and used when the guide body 4 is guided by the guide body 15 and sent rightward in FIG. 1 to be accommodated.

This mechanism 13 has folding rollers 22 disposed at the rear of the elongated guide-based feeding mechanism 12 to face each of the four sets of linkage type coupling bodies 3, and these rollers are provided with brackets 23 so that their protruding direction is directed toward the guide. The roller holders 24 are rotatably supported by respective roller holders 24 that are restricted in the vertical direction perpendicular to the roller 15.

The other end of each roller holder 24 is pivotally supported at one end of each seesaw arm 26 which seesaws with its intermediate portion pivotally supported by a bracket 25.

A roller 27 is rotatably supported at the other end of each seesaw arm 26, and each seesaw arm 26 is driven by each cam 28 that contacts via this roller 27.

Each cam 28 is driven by the rotational force transmitted from the rotational force transmission mechanism 21 to the respective shaft 29.

The timing at which each folding roller 22 protrudes upward or downward is selected when the link pin 3B existing between the guide frames 2 passes facing each folding roller 22.

When each folding reroller 22 is pushed out at such timing, each link-type connecting body 3 between them is bent upward or downward, and is folded by the feeding action of the extension guide main feeding mechanism 12.

During this folding, the tip of each link-type connecting body 3 is held down by the folding guide main body feeding mechanism 14.

In addition to this, the guiding body folding mechanism 13 has an intermittent feeding arm 30 that completely folds the guiding body 4 by feeding each guide frame 2 that has been sent to the 0 position by the extension guiding body feeding mechanism 12 to the b position. This intermittent feed arm 30 has an intermittent feed shaft 31 that rotates once while the guide frame 2 advances by one pitch.
is attached to.

The shaft 31 is driven by the rotational force transmitted by the rotational force transmission mechanism 21.

Therefore, the guide body 4 which is being folded is completely folded while the guide frame 2 is fed into the folding guide body feeding mechanism 14 by the intermittent feed arm 30.

The folding guide main body feeding mechanism 14 is provided behind the guide main folding mechanism 13.

This mechanism 14 moves each group of hook parts 60 at the four corners of the folded guide main body 4 while holding them together with each guide body 15.
It has a set of endless feed tracks 32.

Each feeding endless track 32 is driven to rotate by transmitting the rotational force of the feeding motor 33 via a rotational force transmission mechanism 34 such as a sprocket, a chain, or a gear.

Therefore, the folded guide main body 4 is sent rearward on the feeding endless track 32 in the same state, and is accommodated on the outer periphery of both guide bodies 15.

In this way, when the guide body 4 is housed, it is lifted out of the sea by the extension guide body feeding mechanism 12, folded by the guide body folding mechanism 13, and folded by the folding guide body feeding mechanism 14.
It is stored in a folded state.

Conversely, when the guide body 4 is to be fed into the sea, the drive of the torque motor 19 is cut off by a clutch (not shown) while the brake built into the deceleration and braking mechanism 20 is applied.

In this way, the guiding body 4 is pulled by the laying/burying machine under back tension, so that it is paid out by the required length.

In this case, the folding guide main body feeding mechanism 14 is driven to supply the guide main body 4 so that one guide frame 2 is fed into the endless chain 16 while the guide frame 2 advances by one pitch.

As explained above, the accommodation/feeding device for the elongated body underwater guide device according to the present invention is equipped with an elongated guide main body feeding mechanism, a guide main body folding mechanism, and a folding guide main body feeding mechanism, so that The elongated underwater guide device having a tubular guide main body can be automatically accommodated or supplied, labor can be saved, and the safety of laying or burying work can be improved.

Moreover, according to such an automatic device, the elongated underwater guide device can be continuously accommodated or supplied, so that the laying or burying work can be carried out efficiently and under ideal conditions. be able to.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the device according to the present invention, FIG. 2 is a plan view of the same device, and FIG. 3 is a sectional view taken along line AA' in FIG.
FIG. 4 is an enlarged view of the guide-based folding mechanism of the device, and FIG. 5 is a sectional view taken along the line BB' in FIG. 2. DESCRIPTION OF SYMBOLS 1...Long body underwater guide device, 2...-Guide frame, 3...Link type connecting body, 4...Foldable tubular guide main body, 5・・・・・・Tow line, 6...゜・
・゜Hook part, 9...Accommodation. Supply device, 12...
... Extension guide main body feeding mechanism, 13... Guide main body folding mechanism, 14... Folding guide main body feeding mechanism,
15... Guide body, 16... Endless chain, 18... One hooking fitting, 22... Folding reroller, 32... Infinite for feeding. orbit.

Claims (1)

[Claims] 1. A foldable tubular guide body in which a large number of guide frames having outwardly protruding hook portions at the four corners are foldably connected by a link-type connecting body, and the foldable tubular guide body is slidably connected to the foldable tubular guide body. In a storage/supply device for a long body underwater guide device, which sends out a long body underwater guide device having a supported tow rope into the sea, or conversely pulls the long body underwater guide device out of the sea, a device is provided on both sides of the guide body. a guide body that is interposed between the upper and lower hook portions of each guide frame to guide each guide frame; an extension guide body feeding mechanism that moves the guide body in an extended state at a location of the guide body; a guiding body folding mechanism that folds the guiding body that is being pulled up and moved by the guiding body feeding mechanism at the location of the guiding body; and a folding guiding body that moves the folded guiding body along the guiding body. a feeding mechanism, the elongated guide main body feeding mechanism is configured with an endless chain that has a hook hooked on the hook part of the guide frame and sends the guide main body in an extended state;
The guiding body folding mechanism includes a folding roller that protrudes these parts so as to bend them in a direction crossing the guiding body each time the link type connecting body passes when the guiding body is pulled up. , wherein the folding guide main body feeding mechanism is configured to include a feeding endless track that holds the hook part of the guide frame together with the guide body and feeds the folded guide main body. Accommodation and supply device for underwater guidance device.