JP4683901B2 - Storage space for work boats and composite work boats, and methods for lowering and lifting the work boats and composite work boats contained in the storage spaces - Google Patents

Description

  The present invention relates to a storage space for accommodating both a work boat and a composite work boat mounted on a ship, and a method for lowering and lifting the work boat and the composite work boat accommodated in the storage space.

  Conventionally, a work boat and a composite work boat are mounted on a ship. In general, a work boat is mounted in a recess formed by hollowing out a side wall of a hull (hereinafter referred to as a recess). It was mounted on the exposed deck (see Non-Patent Document 1, for example).

World ships 2004. N0620 (5th, 85, 120-122)

In recent years, complex workboats have tended to increase in size (previously, the total length was about 4.5 m, but recently a total length of about 7.5 m has been planned). At the time, for example, it is considered that the deck crane for supplies is also used, but for that purpose, it is necessary to mount the composite work boat in the vicinity of the deck crane, and there was a problem in setting the mounting position. .
Further, in recent ships, space saving and efficient arrangement have become important issues in design, and various restrictions are imposed on the mounting place of work boats and composite work boats.

  The present invention has been made in order to solve the above-described problems, and a storage space capable of accommodating both a work boat and a composite work boat on a recess in the hull side wall or an exposed deck, and the storage space in the storage space. The purpose is to provide a method for lowering and lifting a contained work boat and a combined work boat.

The storage space of the work boat and the composite work boat according to the present invention is hung on the portal frame by the portal frame and the hydraulic cylinder for tilting the portal frame in a recess formed by hollowing out the side wall of the hull. a winch for wire rope unwinding or winding, the storage platform of the composite work boat slidably provided broadside direction from the opening of the recess, the rear wall of said recess in said storage block of the upper side And a working boat cradle provided.

The storage space for the work boat and the composite work boat according to the present invention includes a gate-type frame in which a lower portion is rotatably supported on a floor of the recess in a recess formed by hollowing out a hull side wall, and the gate includes a hydraulic cylinder for tilting the mold frame, a hook on the tip, feeding a wire rope hung on sheaves provided at an upper portion of the gate-shaped frame via a plurality of sheaves, a winch for winding, the A composite work boat storage base provided slidably in the heel side direction from the opening of the recess inside the portal frame, and a work boat cradle provided above the storage base It is.

The storage space for the work boat and the composite work boat according to the present invention includes a portal frame, a hydraulic cylinder for tilting the portal frame on the exposed deck of the ship, and a wire rope hung on the portal frame. A winch that extends or winds up, a storage base for a composite work boat that is slidable in the heel side direction from the deck, and a work boat cradle provided on the deck above the storage base , Or on the exposed deck of the ship, the lower part is pivotally supported on the deck floor and a hydraulic cylinder for tilting the portal frame and a hook at the tip, and through a plurality of sheaves A winch that feeds and winds up a wire rope hung on a sheave provided on the upper part of the portal frame, and is provided inside the portal frame so as to be slidable in the heel side direction from the deck. A storage stand case type working boat, in which a working boat pedestal provided above the storage table.

  Further, the method for lowering / lifting the work boat and the composite work boat according to the present invention lowers the work boat when the work boat and the composite work boat housed in the storage space are lowered / lifted. In this case, after hooking the work boat and hoisting the wire rope a little, tilting the gate-type frame, swinging the work boat to the shore side, paying out the wire rope and landing the work boat on the sea surface, When lowering the composite work boat, the storage platform on which the composite work boat is mounted is moved forward, the portal frame is tilted to a position directly above the composite work boat, and the hook is hooked. After retracting a small amount, the storage table is retracted, the portal frame is tilted, the combined work boat is swung to the shore side, and the wire rope is extended to make the composite work boat land on the sea surface. Is.

According to the storage space according to the present invention, both the work boat and the composite work boat can be accommodated, so there is no problem with the place where the composite work boat is mounted, and the space of the ship is reduced and the arrangement efficiency is improved. Can be realized.
Further, according to the descending / lifting method according to the present invention, the work boat and the composite work boat accommodated at the upper and lower sides of the storage space using the same portal frame are respectively lowered and lifted without interfering with each other. Therefore, it is very convenient and the work efficiency can be improved.

[Embodiment 1]
FIG. 1 is a front view of a storage space of a work boat and a composite work boat according to Embodiment 1 of the present invention shown with a part omitted, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
In the figure, reference numeral 1 denotes a box-shaped storage space formed by surrounding a recess formed by hollowing out a hull side wall with a wall 3 and a floor 4. In the embodiment, the length of the opening 2 in the bow-stern direction is 15 m and the height is 6 m. The depth of the hangar 1 was 4.5 m.

  5 is composed of leg portions 6a and 6b and a cross member 6c provided at the upper end portion thereof, and is a portal frame forming a crane. The lower end portions of the leg portions 6a and 6b are rotatably supported on the floor 4. . Reference numerals 7a and 7b (7b are not shown) are hydraulic cylinders provided on the back side of the leg portions 6a and 6b of the gate-type frame 5, and their lower ends are rotatably supported on the floor 4 and their actuators. 8 is connected to the upper part of the leg parts 6a and 6b of the portal frame 5.

  Reference numeral 10 denotes a winch installed in the back of the hangar 1, as shown in FIG. 3, from a main drive winch 10a comprising a motor 11 as a driving source and a drum 12a around which a wire rope is wound, and from a drum 12b around which a wire rope is wound. A driven winch 10b and a universal shaft 13 for transmitting the rotation of the main drive winch 10a to the driven winch 10b.

Wire rope 14 wound on the drum 12a of the driving winch 10a passes through sheaves 15b provided from sheaves 15a provided on the floor 4 in the lower portion of the leg portion 6a of the portal frame 5, the 15c, the edge of the cross member 6c After subjected to sheaves 15d provided in section, has been subjected to sheaves 15e provided on a front face side of the crosspiece 6c, the distal end portion of the wire rope 14 hooks 16a is attached.
Further, the wire rope 14 wound on the drum 12b of the driven winch 10b likewise sheaves 15f, 15 g, 15h, and subjected to sheaves 15j through 15i, the hook 16b at the distal end portion of the wire rope 14 Installed.

The portal frame 5 as described above can tilt in the front-rear direction around the lower ends of the legs 6a and 6b by moving the actuator 8 of the hydraulic cylinders 7a and 7b forward or backward.
Further, when the drum 12a is rotated by the motor 11 of the main drive winch 10a, the rotation is transmitted to the drum 12b of the driven winch 10b via the universal shaft 13, and both the drums 12a and 12b are rotated in the same direction and wound around this. The drawn wire rope 14 is fed or wound up, and the hooks 16a and 16b are lowered or raised.

  20 is a stowage of a composite work boat installed on the floor 4 between the leg portions 6a and 6b of the gate-type frame 5, and is installed at predetermined intervals in the front-rear direction of the floor 4 as shown in FIG. A pair of rails 21a and 21b is provided, and a roller 22 is provided on the front part of the rails 21a and 21b. A protrusion 23 is provided on the upper surface of the rear side of the roller 22 so that the cross section is convex. Is formed. Reference numeral 24 denotes a stopper provided on the rear side of the roller 22.

  Reference numeral 25 denotes a table, and slide bases 26a and 26b having an H-shaped cross section are fixed at positions facing the rails 21a and 21b on the lower surface thereof, and the rails 21a and 21b are provided on the rear lower surfaces of the slide bases 26a and 26b. One or a plurality of U-shaped sliding members 27 slidably fitted to the protrusions 23 are fixed.

  Reference numerals 29 and 30 denote bearings fixed to the floor 4 between the rails 21a and 21b, and a screw rod 31 is rotatably supported between the bearings 29 and 30. Reference numeral 32 denotes a motor which is fixed to the floor 4 between the bearing portions 29 and 30 and is connected to the screw rod 31 to drive the screw rod 31 to rotate. 33 is a movable member in which a screw is screwed to the screw rod 31 so as to be provided at the center, and is fixed to the lower surface of the table 25, and these constitute the table drive unit 28.

  In the table 25 having the table driving unit 28 on the lower surface, the slide bases 26a and 26b are positioned on the rails 21a and 21b, the front portions thereof are placed on the rollers 22, and the sliding member 27 is mounted on the rail 21a. , 21b. The two bearing portions 29 and 30 and the motor 32 have a height that does not interfere with the table 25.

Now, when the screw rod 31 is rotated by the motor 32, the movable member 33 screwed thereto moves in the direction of the arrow, and the slide bases 26a and 26b of the table 25 fixed to this move on the rails 21a and 21b. It slides and moves in the direction of the arrow, and the sliding member 27 hits the stopper 24 and stops. Thereby, the table 25 is pushed out from the opening part 2 of the storage 1 to the heel side, as shown in FIG. 5 (refer FIG. 11). If the motor 32 is rotated in the reverse direction, the table 25 returns to the original position.
The storage table 20 of the composite work boat is not limited to the above structure. For example, a table can be pushed out from the storage to the heel side and returned to the original position, for example, a hydraulic cylinder is used for the table drive unit 28. For example, other structures may be used.

  1 and 2, reference numerals 41a and 41b denote support arms attached to the rear wall 3 between the leg portions 6a and 6b of the portal frame 5, and both support arms 41a and 41b include a work boat cradle 40a. , 40b (hereinafter collectively referred to as 40).

  In the storage space 1 configured as described above, as shown in FIGS. 6 and 7, a work boat 50 is mounted on the work boat receiving base 40, and a composite work boat 60 is mounted on the storage base 20. Are accommodated in two tiers, and each is fixed by a wire rope or the like. 8 is a top view of FIG. 6, and FIG. 9 is a top view showing a state in which only the combined work boat 60 is accommodated.

Next, an example of the descending procedure of the work boat 50 and the composite work boat 60 accommodated in the storage space 1 as described above will be described.
When lowering the work boat 50, as shown in FIG. 10, after removing the fixed wire rope or the like, the hooks 16 a and 16 b of the wire rope 14 are hooked on the hook receiver of the work boat 50. Then, a small amount of the wire rope 14 is wound up by the winch 10, the work boat 50 is lifted, floated from the work boat cradle 40, and the winch 10 is stopped.

Next, the actuators 9 of the hydraulic cylinders 7a and 7b are moved forward, the portal frame 5 is tilted toward the opening 2 as shown by the broken line, and the work boat 50 is swung out to the heel side. Next, the winch 10 is driven to feed out the wire rope 14, and the work boat 50 is lowered to land on the sea surface. Then, the hooks 16a and 16b are separated from the hook receiver, the wire rope 14 is wound up by the winch 10, and the actuator 9 of the hydraulic cylinders 7a and 7b is retracted to return the portal frame 5 to the original position. Thereby, the lowering work of the work boat 50 is completed.
When the work boat 50 is lifted (lifted), the procedure reverse to the above may be followed.

  When lowering the composite work boat 60, as shown in FIG. 11, after removing the fixed wire rope, the motor 32 of the table drive unit 28 of the storage table 20 is driven to mount the composite work boat 60. The formed table 25 is projected from the opening 2. Next, the portal frame 5 is tilted to the position just above the composite work boat 60 by the hydraulic cylinders 7 a and 7 b, and the hooks 16 a and 16 b of the wire rope 14 of the winch 10 are hooked on the hook receiver of the composite work boat 60. Then, the winch 10 is driven to wind up the wire rope 14 by a small amount, and the composite work boat 60 is lifted. In this state, the motor 32 of the table drive unit 28 is driven to retract the table 25 and return it to its original position.

Next, the portal frame 25 is further tilted by the hydraulic cylinders 7a and 7b, and the combined work boat 60 is swung out to the shore side. Then, the wire rope 14 is extended and lowered, and after landing on the sea surface, the hooks 16a and 16b are moved. If separated, the descent work of the composite work boat 60 is completed.
When the combined work boat 60 is to be lifted (lifted), a procedure reverse to the above may be used.
Thus, according to the present embodiment, the combined work boat 60 can be lowered and lifted without interfering with the work boat 50 accommodated in the upper part.
When the composite work boat 60 is suspended at a single point, both the hooks 16a and 16b of the winch 10 may be hung on the hook receiver of the composite work boat 60, or both the leg portions 6a and 6b of the portal frame 5 are used. of providing a separate winch on the intermediate portion, a wire rope having a hook at the distal end over the sheaves provided at the center portion of the cross member 6c of the portal frame 5, as suspending the composite working boat 60 at a point It may be. The lowering / lifting operations of the work boat 50 and the composite work boat 60 are automatically performed by a separately provided control unit.

  As mentioned above, although the lowering / lifting procedure of the work boat 50 and the composite work boat 60 accommodated in the storage space 1 provided in the recess has been described, this is an example, and is not limited thereto. It can be changed as appropriate.

[Embodiment 2]
In the first embodiment, the case where the storage space 1 for accommodating the work boat 50 and the composite work boat 60 in two upper and lower stages is provided in the recess provided on the side wall of the hull is described. A deck-type frame 5 similar to that in the first embodiment, a hydraulic cylinder 7 for driving the same, a winch 10 and a wire 15, a composite work boat storage 20, and a work boat cradle 40 are formed on the deck. A storage space 1 is provided.

The procedures for lowering / lifting the work boat 50 and the composite work boat 60 in the present embodiment are the same as those in the first embodiment, and thus the description thereof is omitted.
In the present embodiment, substantially the same effect as in the first embodiment can be obtained, but furthermore, since it is not necessary to mount the work boat 50 and the composite work boat 60 near the deck crane, the storage space The degree of freedom of one installation place can be greatly expanded. In the above description, the case where the work boat and the composite work boat are accommodated in the storage space 1 according to the present invention has been described. However, the present invention is not limited to this. For example, a small boat such as an internal fire boat may be accommodated. .

1 is a front view of a storage space for a work boat and a composite work boat that are partially omitted according to an embodiment of the present invention. It is AA sectional drawing of FIG. It is a perspective view of the winch of FIG. It is a perspective view of the storage stand of the combined working boat of FIG. It is action | operation explanatory drawing of the storage stand of the composite-type work boat of FIG. It is a front view which shows the state which accommodated the work boat and the composite type work boat in the storage space of FIG. It is BB sectional drawing of FIG. FIG. 7 is a top view of FIG. 6. It is a top view which shows the state which accommodated only the composite type work boat in the storage space. It is explanatory drawing of the descent | fall / lifting procedure of the work boat accommodated in the storage space. It is explanatory drawing of the descent | fall / lifting procedure of the composite type work boat accommodated in the storage space.

Explanation of symbols

1 storage space, 4 floors, 5 portal frames, 7a, 7b hydraulic cylinder, 10 winch, 10a main drive winch, 10b driven winch, 14 wire rope, 16a, 16b hook, 20 storage table for combined work boat, 25 table, 28 Table drive unit, 40 Working boat cradle, 50 Working boat, 60 Combined working boat.

Claims (5)

In the recess formed by hollowing out the hull side wall,
A portal frame and a hydraulic cylinder for tilting the portal frame, a winch for feeding or winding up a wire rope hung on the portal frame, and a slidable sideward direction from the opening of the recess are provided. a storage stand of the composite work boats, work boats and storage space of a composite work boat, characterized in that a receiving work boat in the wall after the recess base in said storage table above direction. In the recess formed by hollowing out the hull side wall,
A portal frame whose lower part is rotatably supported on the floor of the recess, and a hydraulic cylinder for tilting the portal frame;
It has a hook at the tip, feeding a wire rope hung on sheaves provided at an upper portion of the gate-shaped frame via a plurality of sheaves, a winch for winding,
A housing for a composite workboat provided inside the portal frame so as to be slidable in the heel side direction from the opening of the recess,
A storage space for a work boat and a composite work boat, comprising a work boat cradle provided above the storage base. On the exposed deck of the ship,
A composite work boat provided with a portal frame, a hydraulic cylinder that tilts the portal frame, a winch that feeds or winds up a wire rope hung on the portal frame, and a slidable inward direction from the deck A storage space for a work boat and a composite work boat , comprising: a storage base for the work boat; and a work boat cradle provided on the deck above the storage base . On the exposed deck of the ship,
A portal frame whose lower part is rotatably supported by the floor of the deck, and a hydraulic cylinder for tilting the portal frame;
A winch that has a hook at the tip, and draws out and winds up a wire rope hung on the sheave provided on the upper part of the portal frame through a plurality of sheaves,
A housing for a composite work boat provided inside the portal frame so as to be slidable in the heel side direction from the deck;
A storage space for a work boat and a composite work boat, comprising a work boat cradle provided above the storage base. In descending / lifting the work boat or the composite work boat accommodated in the storage space according to any one of claims 1 to 4 ,
When lowering the work boat, hook the work boat and wind up a small amount of wire rope, tilt the portal frame to swing the work boat to the shore side, and feed the wire rope to lift the work boat. Land on the sea,
When lowering the combined work boat, the storage frame of the composite work boat on which the composite work boat is mounted is advanced, and then the gate frame is tilted to a position directly above the composite work boat. Hang and wind up the wire rope a little, then retract the storage base, tilt the portal frame to swing the composite work boat to the shore side, and feed the wire rope to attach the composite work boat to the sea surface. A method for lowering / lifting a work boat or a combined work boat characterized by allowing water to flow.

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