JPS623722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heavy cargo loading/unloading device for a ship.

For example, ships are used to transport casks containing spent fuel from nuclear power plants, etc., but conventionally, casks have been loaded and unloaded using ships or cranes installed on quays. At this time, the cask is hoisted to a height of more than 10 meters above the quay. However, since a cask weighs more than 100 tons and contains spent fuel, hoisting it high is very dangerous, and loading and unloading is difficult. Furthermore, as a method for loading and unloading heavy objects onto and from a ship, a so-called roll-on-off method is known in which a mobile cart loaded with heavy objects is moved from one side of a quay and the upper deck of a ship to the other. However,
In this case, it is necessary to adjust the ship's stutter by adjusting the ballast according to the height of the quay, and adjusting the stutter for large ships transporting heavy objects such as casks takes time and is inefficient. In addition, when heavy objects such as casks are loaded on the upper deck of a ship, the center of gravity of the ship becomes higher and a large amount of wasted space is created under the upper deck. It is preferable to locate it. However, this creates a height difference between the upper deck where heavy goods are loaded and unloaded and the floor of the heavy goods storage space. A lifting device is required to lift and lower heavy objects between the storage space and the storage space.

This invention was made in view of the above-mentioned circumstances, and it is possible to easily transport heavy objects such as casks directly onto the floor of the heavy object storage space located below the upper deck without having to adjust the water level of the ship. To provide a heavy object loading/unloading device which can be easily and safely loaded and unloaded and does not require a separate lifting device for the heavy object between an upper deck and a heavy object storage space.

The present invention will be described below with reference to drawings showing embodiments.

The drawing shows a cask (heavy object) installed on quay 1.
The loading and unloading device 2 and the stern of the cask carrier 3 are shown. The quay 1 is provided with a rectangular recess 4 into which the stern or bow of the ship 3 is placed.
The quay wall 1 has sufficient height so that the portion of the ship 3 that is drawn into the recess 4 does not protrude above the recess 4. In addition, in the following explanation, front means recess 4.
, and the rear refers to the back side of the recess 4.

A rotary roller 6 is attached to the rear end wall 5 of the recess 4 to receive the stern end or the bow end of the ship 3, and an inflatable fender 8 is installed to the both side walls 7 of the recess 4 to receive both sides of the ship 3. It is being On the quay wall 1 slightly behind the rear end of the recess 4, there is a rectangular groove 9 extending in the left-right direction.
is provided, and on the quay 1 between the front end of the groove 9 and the rear end of the recess 4, there are two rods 1 extending in the front-rear direction.
Three sets of cask moving trolley rails 10 are provided. Two sets of cask moving truck rails 11 and 12 located on extensions of the two sets of rails 10 are provided on the quay wall 1 behind the groove 9. Inside the groove 9, there is a rail 1 extending in the left and right direction.
A set of rails 15 for cask moving carts extending in the front-rear direction are provided on the lateral moving cart 14, and the movement of the cart 14 moves each rail on the quay 1. 10,1
1 and 12 as appropriate.

The lower ends of a plurality of pillars 16 are fixed on the quay walls 1 on both sides of the recess 4, and both sides of a horizontal frame 17 are fixed to the upper ends of these pillars 16.
A rectangular fixing base 18 is provided in the upper part of the recess 4 and extends horizontally above the ship 3 from the rear upper ends of the rear end wall 5 and both side walls 7, and the front end of the fixing base 18 supports a vertical support member 19. It is supported by a horizontal frame 17 via the horizontal frame 17. 3 on the quay 1 on the top surface of the fixed base 18.
A fixed base 1 extends forward from the front end of the set of rails 10.
Three sets of cask moving truck rails 20 are provided that reach the front end of the cask. At the front end of the horizontal frame 17, a pair of horizontal girders 21 extending left and right are arranged in parallel at a constant interval in the front and rear.
Lifting and lowering devices 22 are provided at both left and right ends of the horizontal girder 21, respectively, to straddle these ends. Also provided in the center of the horizontal frame 17 are a pair of front and rear horizontal girders 21 and a pair of left and right lifting devices 22 similar to those described above. A rectangular parallelepiped lifting frame 23 having a smaller horizontal width than the fixed table 18 is suspended from the ropes 24 of these lifting devices 22, and moves in the vertical direction just in front of the fixed table 18. Guides 25 made of vertical chevrons are arranged slightly outside the four corners of the elevating frame 23, and the upper end of each guide 25 is connected to the horizontal frame 1.
7, and its lower end is supported by the upper end of both side walls 7 via a horizontal support member 26. Three sets of cask moving trolley rails 27 extending in the front and back direction
are provided on the upper surface of a rectangular lifting platform 28 fixed to the lower end of the lifting frame 23, and are connected to the three sets of rails 20 on the fixed table 18 when the lifting table 28 rises to the height of the fixed table 18. It is becoming more and more common. Further, the lifting platform 28 is provided with a movable stopper for the truck (not shown) at an appropriate position.

The cask carrier 3 is provided with a cask storage space 30 located below the upper deck 37 and surrounded by a floor 31 and a shielding wall 29.
Three sets of rails 32 for cask moving carts extending in the front-rear direction are provided on the floor 31 of 0. A hatch 33 for loading and unloading casks is provided at the upper rear end of the cask storage space 30, and a rectangular shallow groove 34 is provided in the floor 31 directly below the hatch 33. This groove 34 is slightly larger than the lifting platform 28, and is
8 is fitted into the groove 34, the three sets of rails 27 of the lifting platform 28 are connected to the three sets of rails 32 of the cask storage space 30, respectively. Further, although not shown in the drawings, the floor 31 of the cask storage space 30 is provided with a cart moving device using a chain or the like, a cask fixing stand, and the like.

The cask C is fixed on a cask holding stand 35 and is moved by a cask moving cart 36. Although not shown, the truck 36 is provided with a jack for lifting the cask holding base 35.

In the above, loading and unloading of the cask C to the carrier ship 3 is performed using the loading and unloading device 2 as follows.

That is, first, the stern part of the carrier ship 3 is pulled into the recess 4, and the stern end is pressed against the rotating roller 6, and the fender 8 is expanded and pressed against both sides, and the hatch 33 of the cask storage space 30 is raised and lowered. stand 2
Position and fix the ship 3 so that it is located directly below the ship 8. Then, the lifting table 28 is raised to the height of the fixed table 18, and the rail 27 of the lifting table 28 is moved to the fixed table 1.
8 rails 20, respectively. on the other hand,
On one of the rails 11 behind the groove 9 on the quay 1, the cask C is fixed on the holding stand 35 in a sideways state as described above, and this holding stand 35 is placed on the cask moving cart 36. Or trolley 36
The cask C is fixed in a sideways state on a holding stand 35 placed on the holder. After connecting the rail 15 of the lateral moving carriage 14 to this rail 11, the carriage 36 is made to run on its own and is transferred onto the rail 15 of the lateral moving carriage 14. Next, the lateral moving trolley 14 is moved in the left-right direction as necessary, and the lateral moving trolley 14 is
A pair of rails 10 on the front quay 1 and rails 2 of the fixed base 18 connect from the rail 15 of the ship 3 to the rail 32 of the part where the cask C is to be stowed.
0, move it onto the rail 27 of the lifting platform 28, and fix it with a movable stopper. Next, the elevating frame 23 with the trolley 36 on it is moved to the four guides 2.
5 and lower the elevator platform 28 through the hatch 33 of the ship 3 into the groove 34 of the cask storage space 30.
Put it inside. Next, these carts 36 are moved from the rails 27 of the lifting platform 28 to the rails 32 of the storage space 30 by appropriate means such as a remote-controlled hydraulic cylinder, and moved forward on the rails 32 by a cart moving device. . At this time, the jack of the truck 36 is jacked up to lift the holding table 35, and the cart 36 and the holding table 35 move without interfering with the cask fixing table in the storage space 30. Once the cart 36 has moved to a predetermined position, it is stopped and the jack is jacked down to lower and fix the holding stand 35 onto the cask fixing stand. Next, only the empty cart 36 is moved rearward by the cart moving device, and from the rail 32 in the storage space 30 to the rail 2 of the lifting platform 28.
7 and fix it, and raise the elevating table 28 to the height of the fixed table 18. Then, the trolley 36 on the lifting platform 28 is caused to travel by itself and returned to the lateral moving trolley 14 through the rails 27, 20, and 10. Next, the horizontal moving trolley 1
4 is moved and the rail 15 is connected to the rail 10 on the quay 1 which is connected to the rail 32 of the part of the ship 3 loaded with casks C to be unloaded. and,
By the same procedure as above, the empty truck 36 is moved below the cask C in the ship 3 to be unloaded. Next, this cask C is lifted by a jack provided on the cart 36, and the same procedure as above is repeated, and the cart 36 carrying the cask C is returned onto the lateral moving cart 14. Next, the lateral moving cart 14 is moved to connect the rail 15 to the rail 12 behind the groove 9. Then, the trolley 36 carrying the cask C is made to travel on its own and is directed toward the land facility through the rails 12. In this way, loading of the casks C from the land facility to the ship 3 and unloading of the casks C from the ship 3 to the land facility can be performed continuously.

Rails 10, 11, 12 on quay 1, fixed stand 1
Rail 20 on 8 and Rail 2 on lifting platform 28
The number of sets of 7, arrangement, etc. are arbitrary. Further, the configurations of the recess 4, the fixed base 18, the lifting platform 28, the lifting device 22, the carrier ship 3, etc. are not limited to those of the above embodiment, and can be modified as appropriate. Further, the present invention can be applied to heavy objects other than casks.

As described above, according to the heavy cargo loading/unloading device of the present invention, at least the heavy cargo storage space 3 of the ship 3 is provided.
A recess 4 into which a portion of the hatch 33 of 0 is inserted is provided in the quay 1, and in the upper part of this recess 4,
A fixed base 18 equipped with a plurality of sets of heavy goods moving trolley rails 20 and extending horizontally above the hatch 33 of the heavy goods storage space 30 of the ship 3, and the weight of each set of rails 20 of the fixed base 18 and the ship 3. A rectangular parallelepiped-shaped lifting frame 23 has a lifting platform 28 equipped with a plurality of sets of heavy goods moving trolley rails 27 connected to each set of rails 32 in the storage space 30, and a rectangular parallelepiped lifting frame 23 fixed to the lower end. Since a lifting device 22 is provided to raise and lower heavy objects such as casks through the hatch 33 of the heavy object storage space 30 of No. 3, the heavy objects such as casks can be moved into the heavy object storage space below the upper deck without having to adjust the ship's water. It can be easily and safely loaded and unloaded directly onto the floor. Therefore, there is no need to provide a heavy object lifting/lowering device between the upper deck and the heavy object storage space separately from the heavy object loading/unloading device. In addition, since heavy objects can be loaded and unloaded while remaining on the trolley, it is easy to move heavy objects on the quay or within the ship's heavy object storage space.
It is possible to load and unload multiple heavy objects at the same time, improving work efficiency. In addition, since guides 25 are provided on the fixed base 18 to guide the four corners of the lifting frame 23, the lifting frame can be raised and lowered in a fixed position and posture, ensuring reliable loading and unloading of heavy objects. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway plan view, FIG. 2 is a cross-sectional view taken along the line of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line of FIG. 1. 1... quay, 2... loading/unloading device, 3... ship, 4... recess, 18... fixed stand, 20, 27, 32... rail,
22... Elevating device, 23... Elevating frame, 25... Guide, 28... Elevating platform, 29... Shielding wall, 30... Storage space, 31... Floor, 33... Hatch, 36... Dolly, 37... Upper deck, C... Cask ( heavy items).

Claims (1)

[Scope of Claims] 1 Heavy goods storage for a ship 3 surrounded by a floor 31 located below an upper deck 37 and a shielding wall 29, and in which a plurality of sets of heavy goods moving trolley rails 32 are provided on the floor 31. Space 30 vs. this space 30
It is a device for loading and unloading heavy goods C through a hatch 33 provided at the upper part of one end, and a recess 4 into which at least a portion of the heavy goods storage space 30 of the ship 3 with the hatch 33 is placed is located on the quay 1.
A fixed base 18 is provided in the upper part of the recess 4, and is provided with a plurality of sets of heavy goods moving trolley rails 20 and extends horizontally above the hatch 33 of the heavy goods storage space 30 of the ship 3. Each set of rails 20 of the fixed platform 18 and the heavy object storage space 30 of the ship 3
Lifting platform 2 equipped with a plurality of sets of heavy goods moving trolley rails 27 connected to each set of rails 32, respectively.
Rectangular parallelepiped lifting frame 2 with 8 fixed at the lower end
3, a lifting device 22 for raising and lowering the lifting frame 23 through the hatch 33 of the heavy goods storage space 30 of the ship 3, and guides 25 provided on the fixed base 18 and guiding the four corners of the lifting frame 23. Heavy goods loading and unloading equipment.