JPH0444710Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention collects seabed minerals such as manganese nodules on the seabed using an ore collector, and transports them to a ship via an ore lifting pipe for mining. This invention relates to an accessory transfer device for transferring accessories for ore lifting pipes stored in the hull of a submarine resource mining vessel from the hull to a derrick workbench during navigation.

[Prior Art] As shown in Figure 6, an underwater resource mining vessel has a hull 1 on which a large number of lifting pipes 9 are connected in sequence in the axial direction and lowered into the sea to form a pipe string 2, and mineral resources on the seabed 4 are extracted using an ore collector 3 attached to the end of the pipe string 2. The mineral resources are then transported onto the vessel through the pipe string 2 by an underwater pump (not shown) or the like provided in the middle of the pipe string 2, where they are extracted.
The ore lifting pipes 9 are connected one by one from the traveling trolley-equipped pipe storage device 5 on the ship 1 to the upper work platform 7a of the derrick 7 via the rotating bridge arm 6, and are connected in sequence.
The pipe string 2 is mounted on a gimbal bearing so that it can swing freely in the fore-aft direction (bow-stern direction) and width direction (ship-side direction) of the hull 1, compensating for the oscillation of the pipe string 2 caused by the swaying of the hull 1. During mining, the ore collector 3 is towed by the hull 1 under its own power, but since the power cables and operating cables of the ore collector 3 and the submersible pump are laid around the pipe string 2 and are subjected to water resistance, the pipe string 2 is provided with a shroud 8 to prevent vibration of the pipes and to hold the cables.
After the lifting pipe 9 is connected, the attachments are mounted on the derrick 7 as appropriate.
It is adapted to be mounted on the lower work tables 7a, 7b, particularly on the lower work table 7b.

Figure 7 shows a container 1 that stores accessories for underwater equipment from the top of the hull 1 to the lower workbench 7b of the derrick 7.
0, in which a derrick 7 swings in the longitudinal and width directions via gimbal bearings on a gimbal mount 11 installed on the hull 1 above the moon pool 1'. freely supported. The gimbal bearing includes a pin 12 provided along the width direction of the pedestal 11;
It consists of an outer frame 13 that is supported by and rotates in the front-rear direction, and a pin 15 that is provided along the front-rear direction of the outer frame 13 and supports the inner frame 14 of the derrick 7 so as to be swingable in the width direction. Further, an elevator type container lift 16 is installed on the lower side of the derrick 7, and guide sheaves 17 and 18 are provided above the container lift 16 and above the hull 1 at the front of the derrick 7. A main rope 20 let out from a winch 19 is connected to a main rope length compensator 21 on the hull 1 via guide sheaves 17 and 18, and a sling frame 22 movably attached to the main rope 20 is hoisted. The container 10 is connected to the winch 19 via a sling wire 23, and the container 10 suspended by a sling wire 24 can be transferred from the top of the hull 1 to the container lift 16 by the operation of the winch 19.

[Problems to be Solved by the Invention] However, the conventional container transport method described above has the following problems.

() Even when the main rope 20 is moving due to the swing angle θ of the derrick 7, the sling wire 24 must be hooked and disconnected, which is dangerous.

() Since the derrick 7 was always tilted by the trail angle θ _T while the hull 1 was navigating, it was difficult to transfer the container 10 to the container lift 16.

() It was difficult to automate the slinging of the sling wire 24, etc.

In view of these circumstances, the present invention has been developed to allow stored containers to be safely and quickly transferred to the derrick.

[Means for solving the problem] The present invention supports a derrick in the ship body through gimbal bearings so as to be swingable in the longitudinal and width directions of the ship, and connects the ore lifting pipe to the derrick. In an undersea resource mining vessel set to sail, a guide rod having a gripping telescoping device at its lower end for gripping an accessory storage container for underwater equipment is swingably supported by the gimbal bearing via a swivel device, In addition, an operating cylinder for pulling the guide rod into the hull and swinging it out toward the derrick is installed on the hull, and stopper plates each equipped with a groove for inserting the guide rod are installed on the hull and on the hull centerline of the derrick. It has a similar configuration.

[Operation] The guide rod is drawn toward the ship's hull, fitted into the groove of the stopper plate, and fixed, and the container on the ship's hull is gripped by the gripping telescoping device at the lower end of the guide rod. The guide rod, which has received the container with the gripping and retracting device, is swung out to the derrick side and is fitted and fixed in the groove of the stopper plate, and the gripping and retracting device is opened to transfer the container to the derrick workbench.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 4, the tube storage device 5
(See Figure 6) on the hull 1 between the derrick 7 and the
Container 1 containing accessories for connecting underwater equipment, etc.
The container storage rack 25 is provided with a container storage rack 25 for storing 0 in multiple rows and multiple stages in the width direction of the hull.
The storage rack 2 allows the container 10 to be taken in and out more easily.
A stacker crane 26 is provided on the front side of the stacker crane 5, and an elevator device 27 is provided for receiving the container 10 from the stacker crane 26 and transporting it to the upper working platform 7a of the derrick 7. A container loading/unloading device 28 is provided to receive the containers 10 and transport them to the lower workbench 7b of the derrick 7.

As shown in FIGS. 1 and 2, the loading/unloading device 28 is fitted onto a pin 12 between the gimbal mount 11 and the outer frame 13 so as to be rotatable in the front and rear direction, and extends forward of the hull 1. A U-shaped guide frame 29, a guide member 31 suspended from the guide frame 29 by a pin 30 so as to be rotatable in the width direction, and a swing gear box 32 at the lower end of the guide member 31. A telescopic guide rod 34 is rotatably supported and expands and contracts by the operation of a built-in cylinder 33;
The container 1 is provided at the lower end of the guide rod 34.
It is composed of a gripping/extending device 35 which is extendable and retractable and is adapted to grip 0. In addition, 36 drives the swing gear in the swing gear box 32 and rotates the guide rod 3.
This is a drive motor that rotates the gripping/extending device 35 through the rotation of 4.

Therefore, the above-mentioned pin 12 connects the guide frame 29, the guide member 31, and the swing gear box 3.
2. The entire loading/unloading device 28 including the guide rod 34 and the gripping telescoping device 35 can swing freely in the longitudinal direction of the hull 1, and furthermore, the pin 30 at the center of the guide frame 29 allows the guide member 31, the rotating gearbox 32, and the guide rod 34 , grip extension device 35
can swing freely in the width direction of the hull 1.

A bracket 37 is fixed to the central upper end of the container storage rack 25 so as to protrude toward the derrick 7 side, and an operation cylinder 38 is supported on the bracket 37 so as to be rotatable in the front, back, left, and right directions.
The guide rod 34 is connected to the lower end of the guide rod 1 so as to be rotatable in the front, rear, right and left directions, and by the operation of the cylinder 38, the guide rod 34 can be pulled toward the storage rack 25 and fixed therein, or released from the fixation so that it can swing. . The guide rod 34 is fixed to the storage rack 25 side, that is, to the hull 1 side, using the U-shaped groove 3 of the stopper plate 39 supported by the bracket 37 so as to be positioned on the hull center line.
9' (see Fig. 5). On the other hand, the guide rod 34 is fixed to the derrick 7 side while being fitted into the U-shaped groove 40' of a stopper plate 40 fixed on the hull center line on the lower side of the derrick 7 (see Fig. 5). reference).

Next, the operation will be explained.

As mentioned above, the ore lifting pipe 9 from the pipe storage device 5
are supplied to the upper workbench 7a of the derrick 7 via the bridge arm 6, where they are sequentially connected and lowered into the sea, where they are suspended and supported by the derrick 7.

Container 10 that stores accessories in container storage rack 25 at the same time as the connection work of this ore lifting pipe 9
is carried out by the sliding fork 26' of the stack crane 26 and travels on the hull center line,
Furthermore, the container 10 is transferred to the vicinity of the derrick 7 by extending the fork 26' to the opposite side. After the container 10 is transferred to the vicinity of the derrick 7, it is transferred to the derrick 7 side by the loading/unloading device 28 on the derrick 7 side. At this time, the cylinder 3 on the storage rack 25 side
8, the guide rod 34 is pulled into the U-shaped groove of the stopper plate 39 to the position indicated by the two-dot chain line in FIG. 1, and the hydraulic pressure is blocked and the guide rod 34 is fixed. The guide member 31 and above, whose oscillation was compensated for on the derrick 7 side whose oscillation was compensated for by the gimbal axis during the pulling stage, and the swing gearbox 3
2. The guide rod 34 is guided from the widening end of the U-shaped groove of the stopper plate 39, and is gradually guided and fixed to the bottom of the U-shaped groove 40' on the centerline of the hull.
In other words, when the guide rod 34 is guided into the U-shaped groove 40', the guide rod 34 gradually moves in the same manner as the hull.

Therefore, the guide rod 34 is fixed to the hull 1 via the storage rack 25, and is completely integrated with the hull 1 against pitching (swinging in the longitudinal direction) and rolling (swinging in the width direction) of the hull 1. There is no relative motion. On the other hand, derrick 7 has gimbal bearing pin 1
2 compensates for the longitudinal shaking, and the pin 15 compensates for the widthwise shaking, which is independent of the movement of the hull 1.

When the guide rod 34 is completely fixed to the hull 1 side, the guide rod 3 is fixed by operating the cylinder 33.
4 to raise and lower the gripping telescoping device 35 to a predetermined position, and then driving the drive motor 36 to rotate the guide rod 34 and swinging the gripping telescoping device 35 in the direction of the container 10 on the fork 26'. When the directions match, the container 10 is gripped by the gripping/expanding device 35.

After gripping the container 10, the fork 2 of the stacker crane 26 is moved by contracting the cylinder 33 and slightly raising the position of the gripping telescoping device 35.
The container 10 is received from above 6'. Subsequently, the guide rod 34 is turned 90 degrees to orient the gripped container 10 in the width direction of the hull 1. Once the delivery work of the container 10 from the hull 1 side is completed,
Next, the received container 10 is transferred to a predetermined position on the lower workbench 7b side of the derrick 7. In this transfer, first, the guide rod 34, which has been pulled toward the storage rack 25 side and fixed in its longitudinal swing, is released from the fixation of the cylinder 38, and the hydraulic pressure is activated in the extension direction to gradually swing it toward the derrick 7 side. When the guide rod 34 is swung out to a state parallel to the derrick 7 and comes into contact with the stopper plate 40, the hydraulic pressure of the cylinder 38 is released to allow it to freely expand and contract. At this time, the guide rod 34 fixed to the bottom of the U-shaped groove 40' of the stopper plate 39 also gradually moves away from the bottom of the U-shaped groove 40' and is further released from the tip of the U-shaped groove 40'. Guide rod 34
is released from the shaking in the width direction of the ship, which was shaking at the same time as the ship, and is swung toward the derrick 7 side. In this way, the guide rod 34 is freed from oscillation, so that the sway in the vertical direction is gradually attenuated and reduced by the weight of the guide rod 34 itself. Therefore, the guide rod 34 is released from the restraint from the hull 1, and is fixed to the derrick 7 side by fitting into the U-shaped groove 40' of the stopper plate 40, and the cylinder is prevented from pitching the hull 1. 38. With respect to horizontal shaking, the swinging is compensated for by being fixed to the bottom of the U-shaped groove 40' of the stopper plate 40, and the movement completely matches the movement of the derrick 7, eliminating relative movement. In this state, lower the previously gripped container 10 to a predetermined position, and then move the guide rod 34 90 degrees.
The container 10 is rotated and transferred to the inside of the lower workbench 7b.

The container 10 transferred to the lower workbench 7b of the derrick 7 is released from the gripping/extending device 35 at a predetermined position, and the guide rod 34 is raised slightly before being delivered.After the delivery is completed, the guide rod 34 is moved 90 degrees in the opposite direction to the above-mentioned direction. One cycle of operation is completed with a rotation of °.

When recovering the lifted ore pipe 9 and its accessories, it is sufficient to transfer them in the reverse order as described above.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the invention] As explained above, according to the invention, () When transferring a container containing accessories from the hull side to the derrick side, the guide rod is pulled toward the hull side, and the guide rod is moved forward, backward, and lateral to the hull side. When the movement is restrained and fixed, it can be easily aligned on the hull centerline without using any other power or centering mechanism. Therefore, the container loading/unloading device can safely and reliably deliver and transport containers without relative movement to the ship's hull under severe working conditions on the open sea. Furthermore, since the guide rod can be fixed to the ship's hull, it can be maintained at the same position and distance from the container storage rack, making it easy to automate the positioning of each operation.

() The container loading/unloading device is separated from the hull and can be easily positioned on the derrick center line by releasing the fixation on the ship's hull side and fixed. The motion is the same as the compensated derrick without any relative motion. Therefore, container transfer work, accessory attachment work, etc. within the derrick can be performed very easily and safely, and automation and labor savings can be achieved.

() Even if the derrick has a trail angle, it is easy to handle, and there is no need to sling a sling wire.

It can produce excellent effects such as

[Brief explanation of the drawing]

Figure 1 is a side view of the device of the present invention, and Figure 2 is a side view of the device of the present invention.
Figure 3 is a view from the - arrow in Figure 1, Figure 4 is a view from the - arrow in Figure 1, Figure 5 is an enlarged view from the - arrow in Figure 1, and Figure 6 is a seabed view. An explanatory diagram of a resource mining ship, FIG. 7 is an explanatory diagram of a conventional example. 1 is the hull, 7 is the derrick, 7b is the lower workbench,
10 is a container, 11 is a gimbal mount, 12,1
5 is a pin, 28 is a loading/unloading device, 29 is a guide frame, 30 is a pin, 35 is a gripping/extending device, 38 is an operating cylinder, 39 and 40 are stopper plates, and 39' and 40' are U-shaped grooves. .

Claims (1)

[Scope of utility model registration request] A derrick is supported on the hull via gimbal bearings so that it can swing freely in the longitudinal and width directions of the hull, and the derrick is used to connect ore lifting pipes. A guide rod equipped with a grip extension/retraction device at the lower end for gripping an accessory storage container is swingably supported by the gimbal bearing via a rotation device, and the guide rod is pulled into the hull side and swung out to the derrick side. The operating cylinder is installed on the hull side,
A device for transferring accessories for a submarine resource mining vessel, further comprising a stopper plate provided with a groove for inserting a guide rod on the hull side and on the hull centerline of the derrick.