JP2002167168A - Self-propelled portal container crane and container ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cope with even a container ship of intermediate/small type in light weight by lightening weight of a cargo handling gear on a container ship, while reduction is attained of a cost of cargo handling equipment in a side on the ground by lightening weight of a container crane in small size. SOLUTION: A trailer 27 mounting a container 23 can be advanced into between front/rear leg parts 3 supporting an upper frame 5 of a self-propelled portal container crane 1, a lift frame 9 of almost equal length to the upper frame 5 is provided in its upward, a ferry boat frame 11, ordinarily erected upward to be turned downward when delivery of the container is performed between itself and a container ship 25 to be engaged with one end of an on- board portal frame 13 to connect it to the lift frame 9, is pivotally mounted in one end thereof, a rail for moving a trolley is laid respectively on the lift frame 9 and the ferry boat frame 11, the trolley 20 traveling on the rail for moving it to hoist up and lower down the container 23 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled portal container crane and a container ship for loading and unloading containers while moving on a quay, a container yard, and the like. The present invention relates to a self-propelled gate-type container crane for delivering and receiving containers.

[0002]

2. Description of the Related Art FIG. 5 is a side view of a conventional cargo handling facility of a container terminal. In the figure, a is a container ship, b
Is a container crane, c is a trolley movably provided on the boom of the container crane b, d is a bridge-type crane for yards, and h is a container. The container h loaded on the container ship a is unloaded by the container crane b, placed on the container conveyor f, and sent to the land side. Container h is a yard bridge crane d at the land side end.
And loaded on a trailer (chassis) i or a container yard e. Containers h stacked by the yard bridge crane d are:
Transported sequentially from the container terminal to the outside. In the cargo handling equipment of this container terminal, the container ship a normally berths on either the starboard side or the port side to the quay g to load and unload the container h.

FIG. 6 is a side view of a conventional shipboard type container crane. In the figure, a is a container ship. j
Denotes a shipboard type container crane, and k denotes a horizontal swinging boom pivotally connected to both ends of a crane beam (upper frame) q of the shipboard type container crane j. m
Is a trolley that moves on the upper frame q. Numeral n is a spreader for gripping a container h which can be lifted and lowered on a trolley m via a wire rope r. When the container ship a berths at the quay g, the onboard gate type container crane j
, The tip of the revolving boom k is horizontally rotated to a position above the quay wall g and fixed, and the vehicle travels on the traveling rail p laid on the container ship a in the longitudinal direction of the container ship a by the wheels o. Trolley m is upper frame q and swivel boom k
The container h is moved in the width direction of the container ship a to unload and unload the container h between the container ship a and the quay g.

[0004]

In the above-mentioned conventional container crane b, a counterweight is required to protrude to the full width of the container ship to load and unload the container, and the crane becomes large and the weight becomes large. Must be strong. Further, in the conventional container ship a having the shipboard type container crane j, the weight of the container ship must be large because the trolley in which the spreader is suspended on the container ship moves to the land and the ship tilts due to the change in the center of gravity. And equipment costs increase.

The present invention has been devised in view of the above-mentioned problems of the prior art, and has a movable gantry-type mount having no trolley on a container ship, and has a gantry-type mount on the quay side. The height of the trolley is raised and lowered according to the height of the gantry, and the trolley can be moved to the gantry-type gantry on the container ship, and the gantry-type gantry on the container ship and the self-propelled Provided is a self-propelled portal container crane and a container ship, which can reduce the size of the equipment and reduce the equipment cost because the container handling work is performed between the ground and the container ship by joint work. The purpose is to:

[0006]

To achieve the above object, a self-propelled portal container crane according to the present invention is provided so as to be able to run on rails laid along a longitudinal direction on a container ship. A self-propelled portal container crane that transfers containers to and from a shipboard-type platform, wherein the container is placed between legs before and after supporting an upper frame of the self-propelled portal container crane. A trailer is allowed to enter, and an elevating frame of approximately the same length as the upper frame is provided above the upper frame, and at one end of the elevating frame, the container is normally standing upright and the container is connected to the container ship. When the delivery is performed, the ship is pivoted downward, and is engaged with one end of the shipboard type gantry to pivotally connect the shipbuilding frame connecting the shipboard gantry with the elevating frame. Laid respectively trolley movement rails, it is made of a trolley which the down hanging the container by driving on the trolley rails for moving.

[0007] It is preferable to provide a portal-type transverse frame connecting the front and rear upper frames to each other above the upper frame.

Further, it is preferable that an end of the upper frame on the side opposite to the ferry frame is protruded outward to connect the front and rear upper frames together with a connecting member, and an operator's cab is provided on the connecting member.

[0009] Further, it is preferable that the wheels of the self-propelled portal container crane are tire-type wheels capable of changing the direction by 90 °.

According to a fifth aspect of the present invention, there is provided a container ship provided with a shipboard-type gantry capable of traveling on rails laid along the longitudinal direction on the container ship, and a trolley moving on an upper frame of the shipboard-type gantry. When laying rails and transferring containers to and from a self-propelled portal container crane traveling on the quay, place the trolley provided on the self-propelled portal container crane on the trolley moving rail on the upper frame. This is to move and unload the container.

[0011] Preferably, the trolley moving rail is groove-shaped, and the wheels of the trolley are tire-type wheels.

Next, the operation of the present invention will be described. When unloading a container from a container ship, when the container ship touches the quay, the self-propelled portal container crane moves to the ship side of the container ship. The gantry type gantry of the container ship stops above the container to be moved down in the longitudinal direction of the container ship. When the gantry mount stops,
The self-propelled portal container crane travels and adjusts the distance between the front and rear and the distance from the container ship. After that, raise and lower the elevating frame and adjust it to the height of the shipboard type gantry,
By rotating the ferry frame, the protrusion at the tip of the ferry frame is engaged with the end of the boat-type gantry. When the engagement is completed, the trolley on the self-propelled portal container crane moves through the elevating frame and the ferry frame onto the boat-mounted platform, and stops on the target container. When the trolley stops, the spreader is lowered from the trolley onto the container and lifted, and the trolley moves again from the onboard gantry through the ferry frame to the elevating frame of the self-propelled portal container crane and stops. When the trolley stops, the container is dropped on a trailer waiting at the bottom of a self-propelled portal container crane and delivered. When the trolley transfers the container to the trailer, the trolley moves from the elevating frame to the gantry base again through the ferry frame and lifts the next container,
Repeat loading and unloading of containers. In addition, when the lower gate-type gantry and the self-propelled gate-type container crane lower the containers in the same row, the traveling frame continues to run in the longitudinal direction of the container ship with the hull frame still connected to the lower gantry-type gantry. Take down.

[0013] Loading a container from the ground to a container ship is performed in a process substantially opposite to that for unloading the container from the container ship.

As described above, when a container is transferred to and from the shipboard-type gantry that runs on the container ship, the trolley on the self-propelled gate-type container crane on the quay is moved to the shipboard-type gantry, and Since the loading and unloading of containers is performed, the boom of the container crane becomes unnecessary, and the size and weight can be reduced. Therefore, since the cost of the cargo handling equipment on the ground side is reduced and the weight of the cargo handling equipment on the container ship is reduced, it is possible to cope with small and medium-sized and lightweight container ships.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a self-propelled portal container crane and a container ship of the present invention, showing a state in which containers are being unloaded and loaded between the self-propelled portal container crane and the container ship. FIG. 2 is an enlarged side view of FIG. FIG. 3 is a plan view of FIG. FIG. 4 is a view on arrow AA of FIG. 1 to 4,
Reference numeral 1 denotes a self-propelled gate-type container crane (hereinafter, referred to as a "gate-type container crane"). Reference numeral 2 denotes a lower frame before and after the portal container crane 1. 3 are legs for supporting the upper frame 5 erected at the four corners of the lower frame 2,
Reference numeral 4 denotes an auxiliary leg supporting the upper frame 5 erected in the middle of the lower frame 2. The upper frame 5 is provided at the upper ends of the legs 3 and the auxiliary legs 4 so as to face the lower frame 2. The upper frame 5 has one end protruding outward, and the end of the protruding portion 5a is connected by a connecting member 5b. An operator cab 24 is provided above the middle of the connecting member 5b. Reference numeral 6 denotes a gate-type transverse frame that connects the front and rear upper frames 5 above the upper frame 5.
Is provided so as to protrude above the middle of the auxiliary leg 4 in the upward extension. 7 is the lower frame 2 between the auxiliary legs 4
7, a reinforcing member connecting the upper frame 5 and the upper frame 5
Reference numeral a denotes a reinforcing member in which the upper frame 5 and the upper end of the portal-type transverse frame 6 are connected in an X shape between the portal-type transverse frames 6, and 7b is a horizontal connection between the upper ends of the portal-type transverse frame 6. It is a connected material. Numeral 8 denotes tire-type wheels provided at four corners of the lower frame 2, which can be turned 90 ° by a power steering device (not shown). 26 is a quay. Reference numeral 27 denotes a trailer (chassis) on which the container 23 is placed and transported. The trailer 27 moves backward between the legs 3 in front of and behind the portal container crane 1 and enters.

Reference numeral 9 denotes a lifting frame provided on the upper frame 5 and having substantially the same length as the upper frame 5. The elevating frame 9 is moved up and down by expansion and contraction of four hydraulic cylinders 10 provided at the upper end inside each leg 3. 9a is a trolley topper provided at one end of the lifting frame 5. In addition,
At the other end of the elevating frame 5, a ferry frame 11, which will be described later, stands up, so that the ferry frame 11 acts as a trolley topper.

The boat frame 11 is pivotally connected to one end of the lifting frame 9 by a pin 9b so as to be rotatable up and down.
Reference numeral 11a denotes a downwardly protruding projection provided at the tip of the ferry frame 11, which is an upper frame 1
6 is provided so as to be able to be fitted into and removed from the concave portion 16a provided at the end of the sixth. Numeral 12 denotes a hydraulic cylinder having a lower end pivotally connected to an end of the lifting frame 9 and a rod end attached to a lower surface of the boating frame 11. The ferry frame 11 includes a hydraulic cylinder 12
The container 23 is normally erected upward by expansion and contraction, and when transferring the container 23 to and from the container ship 25, the container 23 rotates downward and engages with one end of the shipboard gate type gantry 13 to engage with the shipboard gate gantry 13. And the lifting frame 9 are connected.

The shipboard type gantry 13 includes a lower frame 14 and a lower frame 1 provided in the longitudinal direction of the container ship 25.
The upper frame 16 is provided on each leg 15 provided on the container 4, and is provided so as to be able to run on wheels 18 on rails 18 laid along the longitudinal direction on the container ship 25. The concave portions 16 a are provided at both ends of the upper frame 16, and either the right or left is used depending on the berthing condition of the container ship 25. Reference numeral 16b denotes an up-and-down trolley topper provided at both ends of the upper frame 16. Like the recess 16a, when one is raised according to the berthing condition of the container ship 25, it is used so that the other is turned down (the left side in FIG. 2). Upright and defeat the right side). In this example, the container ship 25 has the containers 23 mounted in two rows and multiple stages in the short direction of the container ship 25. Note that the stopper 1
The undulation of 6b is performed by a hydraulic cylinder (not shown).

Reference numeral 19 denotes a groove-shaped trolley moving rail provided on the elevating frame 9; 19a, a groove-shaped trolley moving rail provided on the ferry frame 11;
3 is a groove-shaped trolley moving rail provided on the upper frame 16 and has the same shape.

Reference numeral 20 denotes a trolley for loading / unloading the containers 23 between the ground and the container ship 25. The trolley moving rail 19 of the lifting frame 9, the trolley moving rail 19a of the ferry frame 11, and the gantry type mount 13 are provided. A trolley moving rail 19b is moved by wheels 20a, and a spreader 22 for holding a container 23 is suspended below the wire rope 21 via a wire rope 21. The trolley 20 is usually provided on the container crane 1, and performs loading / unloading work of the container 23 in, for example, a container yard on the elevating frame 9 of the portal type container crane 1, and when the container ship 25 berths, the container ship is moved. 25 and container 23
When loading / unloading containers, the container 23 is reciprocated between the portal-type container crane 1 and the container ship 25 via the ferry frame 11 to carry out loading / unloading of the containers 23.

Next, the operation of the present embodiment will be described. When unloading the container 23 from the container ship 25, when the container ship 25 berths on the quay 26, the portal container crane 1
Moves along the quay to the side of the container ship 25. The gantry type gantry 13 of the container ship 25 stops above the container 23 which is to be moved down in the longitudinal direction of the container ship 25. When the boat gate type gantry 13 stops, the gate type container crane 1 travels to perform front / rear and distance adjustment from the container ship 25. Thereafter, the elevating frame 9 is raised and lowered to adjust the height of the gantry-type gantry 13, and the ferry frame 11 is rotated to project the protrusion 1 at the tip of the ferry frame 11.
1a is engaged on the end of the boat-mounted gantry 13. When the engagement is completed, the trolley 20 on the portal-type container crane 1 moves to the boat-type platform 13 through the elevating frame 9 and the ferry frame 11, and stops on the target container 23.
When the trolley 20 stops, the spreader 2
2 is lowered onto the container 23 and lifted, and the trolley 20 is again moved from the gantry-type gantry 13 through the transfer frame 11 onto the elevating frame 9 of the portal-type container crane 1 and stopped. When the trolley 20 stops, the trailer 27 waiting at the lower part of the
The container 23 is lowered and delivered. When the trolley 20 transfers the container 23 to the trailer 27, the trolley 20 moves again from the elevating frame 9 to the boat-mounted gantry 13 through the transfer frame 11, lifts the next container 23, and repeatedly unloads the container 23. . Note that the onboard gate type gantry 13 and the gate type container crane 1 are
, The traveling frame 11 continues to travel in the longitudinal direction of the container ship 25 while being connected to the port-type gantry 13, and the other rows of containers 23 are lowered.

When loading the container 23 from the ground onto the container ship 25, the process is performed in a substantially opposite direction to the process for unloading the container 23 from the container ship 25.

As described above, when the container 23 is transferred between the gantry 13 and the gantry 13 traveling on the container ship 25, the trolley 20 on the gantry container crane 1 on the quay 26 is moved to the gantry 13. And the container 23 is loaded and unloaded, so that the boom of the container crane becomes unnecessary, and the size and weight can be reduced. Therefore, while reducing the cost of the cargo handling equipment on the ground side and reducing the weight of the cargo handling equipment on the container ship 25,
It is also possible to support small and medium-sized and lightweight container ships 25.

The present invention is not limited to the embodiment described above, and various changes can be made without departing from the gist of the invention.

[0025]

As described above, the self-propelled portal container crane and the container ship of the present invention are provided with an elevating frame above the upper frame and connected to an onboard gate type mount movably provided on the container ship. The ferry frame is pivoted so as to connect the gantry-type gantry with the lifting frame, and can be moved between the container ship and the trolley for lifting and lowering the container. The size of the container crane can be reduced, so that the equipment costs on the ground side can be reduced, and the weight of the cargo handling equipment on the container ship has been reduced. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a self-propelled portal container crane and a container ship of the present invention, showing a state where containers are being unloaded and loaded between the self-propelled portal container crane and the container ship.

FIG. 2 is an enlarged side view of FIG.

FIG. 3 is a plan view of the self-propelled portal container crane and container ship of the present invention.

FIG. 4 is a view taken in the direction of arrows AA in FIG. 3;

FIG. 5 is a side view of a conventional cargo handling facility of a container terminal.

FIG. 6 is a side view of a conventional shipboard type container crane.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled portal type container crane 2 Lower frame 3 Legs 4 Auxiliary leg 5 Upper frame 5b Connecting material 6 Gate type transversal frame 7, 7a Reinforcement material 8 Tire-type wheel 9 Elevating frame 10 Hydraulic cylinder 11 Ship frame 12 Hydraulic pressure Cylinder 13 Boat-mounted gantry 14 Lower frame 15 Leg 16 Upper frame 17 Wheel 18 Travel rail 19, 19a, 19b Trolley moving rail 20 Trolley 20a Tire-type wheel 21 Wire rope 22 Spreader 23 Container 25 Container ship 26 Quay 27 Trailer ( Chassis)

Claims (6)

[Claims] 1. A self-propelled gate-type container crane for transferring containers to and from a ship-type gate-type gantry provided on a container ship so as to be able to run on rails laid along a longitudinal direction of the container ship. A trailer with a container placed between the front and rear legs supporting the upper frame of a self-propelled portal container crane can enter, and above the upper frame, an elevating frame approximately the same length as the upper frame Is established,
At the end of the lifting frame, it usually stands up, and when transferring containers to and from the container ship, it rotates downward and engages with one end of the boat gate type gantry to raise and lower the boat gate type gantry. A ferry frame connecting the frame is pivotally mounted, trolley moving rails are respectively laid on the elevating frame and the ferry frame, and a trolley for traveling on the trolley moving rail and hanging down the container is provided. A self-propelled portal container crane characterized by becoming. 2. A gantry connecting frame for connecting front and rear upper frames to each other above the upper frame.
Self-propelled portal container crane as described. 3. An upper frame is provided so that an end of the upper frame opposite to the ferry frame is protruded outward to connect the front and rear upper frames together with a connecting member, and a driver's cab is provided on the connecting member. And a self-propelled portal container crane according to claim 2. 4. The wheel of a self-propelled portal container crane,
The self-propelled portal container crane according to any one of claims 1 to 3, wherein the self-propelled portal container crane is a tire-type wheel capable of changing a direction by 90 degrees. 5. A shipboard-type gantry is provided on a container ship so as to be able to run on rails laid along a longitudinal direction, and a trolley-moving rail is laid on an upper frame of the shipboard-type gantry so as to travel on a quay. When transferring containers to and from a self-propelled portal container crane, the trolley provided on the self-propelled portal container crane is moved onto the trolley moving rails of the upper frame to lift and lower the container. Container ship characterized by doing. 6. The self-propelled portal container crane and container ship according to claim 1, wherein the trolley moving rail is groove-shaped, and the wheels of the trolley are tire-type wheels.