JPH0444709Y2 - - 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. It concerns a submarine resource mining vessel.

[Prior Art] As shown in FIG. 6, an undersea resource mining ship has a moon pool 1' opened in the center of the ship's hull 1, with a large number of ore lifting pipes 9 sequentially connected in the axial direction on the ship's hull 1. A pipe string 2 is formed by lowering the pipe string 2 into the sea, and a mine collector 3 attached to the tip of the pipe string 2 mines mineral resources on the seabed 4. (not shown) etc., the mine is transported onto a ship through a pipe string 2 and mined.
To connect the ore lifting pipes 9, the ore lifting pipes 9 are supplied one by one from the pipe storage device 5 with a traveling trolley on the hull 1 to the upper working platform 7a of the derrick 7 via the rotary bridge arm 6, and are connected in sequence. Ru. In this case, Derrick 7
is provided so as to be swingable in the longitudinal direction (fore and aft direction) and the width direction (inboard direction) of the hull 1 by means of a gimbal bearing mount 11, and compensates for the movement of the pipe string 2 due to the rocking of the hull 1. During mining, the ore collector 3 is towed by the hull 1, but power cables and operating cables for the ore collector 3 and the submersible pump are laid around the pipe string 2, which is subject to water resistance. , the pipe string 2 has a shroud 8 for vibration-proofing the ore lifting pipe and supporting each cable, etc.
Undersea equipment accessories such as: This accessory is installed on the derrick 7 as appropriate after the ore lifting pipe 9 is connected.
It is designed to be mounted on the lower workbenches 7a and 7b.

Accessories for underwater equipment, such as the shroud 8, are stored in an antenna 10, and stored in container storage racks 12 installed in multiple stages and rows in the width direction of the hull at a position forward of the derrick 7 on the hull 1. . Thus, the container 10 stored in the storage rack 12 is taken out by the fork 13' of the stacker crane 13 provided at the front of the storage rack 12, and is placed between the derrick 7 and the hull 1. The lower workbench 7 is moved by the loading/unloading device 14 which is swingably supported.
b, and further transferred from the lower workbench 7b through the inside of the derrick 7 to the upper workbench 7a.

[Problems to be solved by the invention] As described above, conventionally, when the container 10 is transferred to the upper workbench 7a of the derrick 7, it is first transferred to the lower workbench 7b and then transferred to the upper workbench 7a. Therefore, a space is required in the derrick 7 for the container 10 to pass through, and the derrick 7 becomes larger accordingly. Furthermore, although it was desired to make the moonpool 1' that opens into the hull 1 small, it had to be made large to accommodate the size of the derrick 7. In addition, it is dangerous to directly lift a container on the upper deck of the ship using the davids on the upper workbench because the container is shaking so much that it is dangerous and the work is difficult.

By the way, the operation of the stacker crane 13, the loading/unloading device 14, etc. is performed from the control room 15.
The control room 15 is installed at a height of the upper workbench 7a of the derrick 7 (approximately 25 m from the top surface of the hull 1) so as to be able to monitor the work of various devices. Conventionally, workers used stairs to go up and down between the walkway surface 16 for the control room 15 and the walkway surface on the hull 1, which required a great deal of labor.

In view of these circumstances, the present invention attempts to simultaneously solve the problems of increasing the size of derricks and moonpools, as well as the problem of the labor required for workers to raise and lower them.

[Means for Solving the Problems] In order to achieve the above object, the present invention supports a derrick on the ship body via a gimbal bearing mount so that it can swing freely, and the ore lifting pipe is supported by the derrick. Used for elevating workers and transporting containers containing accessories for ore lifting pipes between the ship's upper walkway and the control room's walkway above the ship on a submarine resource mining vessel that is designed to be used as a replenishment vessel. The elevator device is installed upright on the hull.

[Function] Therefore, it is used for transporting containers and for elevating and lowering workers between the ship's upper walkway and the control room walkway.

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

As shown in FIGS. 1 and 2, in the present invention, a structure is provided on the hull 1 between the derrick 7 and the widthwise end of the container storage rack 12, facing the stacker crane 13, and on the control room sidewalk surface 16. A combination elevator device 17 for the operator and the container 10 to engage with the operator and the container 10.
Furthermore, a david device 18 is installed on the derrick 7 side so that the container 10 can be transferred between the control room walkway 16 and the upper workbench 7a of the derrick 7.
The configuration includes the following.

As shown in FIGS. 3 to 5, the elevator device 17 includes a rack 20 provided vertically along the inner wall of a tower 19, a pinion 21 that meshes with the rack 20, and a motor 22 that drives the pinion 21.
An elevating drive device 23 is installed at the upper end of the cage 24, and the cage can be moved up and down within the tower 19 by driving the elevating drive device 23. The lift drive device 23 is driven by the control room 15, the operation panel 25 in the cage 24, the control room walkway 16, and the tower 19 facing the upper walkway of the hull 1.
This is done by operating an operation panel (not shown) on the side wall. The cage 24 is provided with a fork 26 that extends and contracts in the direction of the center of the width of the hull, so that the container 10 on the fork 26 can be carried out onto the control room walkway surface 16.

Note that 27 is a staircase that communicates with the control room walkway surface 16, and the lower part of the staircase 27 is the gimbal bearing mount 1.
It is connected to the sidewalk surface 28 of No. 1. 29 is a power supply device.

Next, the operation will be explained.

First, when transferring the container 10 containing accessories stored in the storage rack 12 to the upper workbench 7a of the derrick 7, the stacker crane 13 runs from the storage rack 12 in response to a command from the control room 15. Go up and down to the target rack and fork 1
3' to take out the container 10, move it further forward to the front of the elevator tower 19, and load it onto the fork 26 of the cage 24 in the elevator tower 19 (see the two-dot chain line in FIG. 3). After the fork 13' of the stacker crane 13 exits the tower 19, the lifting drive device 23 is activated to raise the container 10 to the control room sidewalk surface 16 position through the raising of the cage 24. After the lifting drive device 23 stops, the fork 26 in the cage 24 extends and lifts the container 10.
is sent out of the tower 19 (see the two-dot chain line in FIGS. 4 and 5). The above operations are automatically controlled or manually operated by the machine. Therefore, container 1
0 is transferred to the upper workbench 7a by operating the david device 18 on the derrick 7 side. When the container 10 is carried out from above the fork 26, the fork 2
6 and wait with the fork 26 completely retracted.

Conversely, from the upper workbench 7a side, the storage rack 12
When transferring the container 10 to the fork 26, the fork 26 is extended from the standby state by pressing a button, and the container 10 is placed on the fork 26 by the david device 18 in the fully extended state. After confirming the connection between the fork 26 and the container 10, the fork 26 is retracted by a command from the control room 15 or the operation panel on the machine side, and after confirming that it is completely retracted, the lifting drive device 23 is started and the cage 24 is retracted. The container 10 is lowered through the lowering of the container 10. After stopping at the lower position, fork 1 of Statzka crane 13
3' is inserted into the lower part of the container 10, and the container 10 is transferred and stored at a predetermined position in the storage rack 12 via the stacker crane 13. When the container 10 leaves the tower 19, it enters a standby state.

On the other hand, when using the elevator device 17 for raising and lowering workers, first confirm the standby state, then operate the push button on the operation panel on each sidewalk side where the worker gets on to call the cage 24, and then open the cage 24. to open. still,
Two doors are provided apart from the part where the container 10 is entered and exited. After the worker gets into the cage 24 (the capacity is, for example, three), the worker selects a destination floor by operating a push button on the operation panel 25. When the cage 24 arrives at the destination floor, the worker gets off there, and then the door is closed and the cage 24 is raised and lowered to the above-mentioned standby position, where it is again in the standby state.

After the above-mentioned handling work is completed, the cage 24 is stopped at the lower position, and during sailing, the cage 24 is fixed with a fixing device or the like in consideration of the movement of the hull 1.

As described above, the elevator device 17 can be used both for transporting the container 10 and for lifting and lowering workers.

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, an elevator device is provided that can be used both for container transfer and for raising and lowering workers. It is possible to reduce the labor of the worker who travels back and forth between the surfaces.

() Since there is no need to create a space in the derrick for transferring containers from the lower workbench to the upper workbench, the derrick can be made smaller, and the open surface area of the moon pool can therefore be made smaller.

It can produce excellent effects such as

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing an embodiment of the present invention, Fig. 2 is a directional view of Fig. 1, Fig. 3 is a side view of the elevator system, Fig. 4 is a plan view of Fig. 3; 5
The figure is a left side view of Fig. 3, and Fig. 6 is an overall explanatory diagram of the submarine resource mining vessel. 1 is the hull, 1' is the moon pool, 2 is the pipe string, 3 is the ore collector, 7 is the derrick, 7a is the upper workbench, 7b is the lower workbench, 8 is the shroud,
9 is an ore lifting pipe, 10 is a container, 12 is a storage rack, 13 is a stacker crane, 15 is a control room, 1
6 is the control room sidewalk surface, 17 is the elevator equipment, 18
indicates a david device.

Claims (1)

[Scope of utility model registration request] The derrick is attached to the hull via a gimbal bearing mount,
In a seabed resource mining vessel that is swingably supported on the ship's hull and the ore lifting pipe is connected to the derrick, workers are An undersea resource mining ship, characterized in that an elevator device is installed on the hull of the ship for use in lifting and lowering the container and for transporting a container containing accessories for the ore lifting pipe.