JP2002167167A - Self-propelled portal container crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain reduction in a cost of cargo handling equipment in the ground side, by lightening weight of a container crane in small size. SOLUTION: This self-propelled portal container crane 1 is constituted by providing it capable of traveling on a rail 21, making an upper frame 5 capable of bringing a trailer 22 mounting a container 23 into between right/left leg parts 3, providing a lift frame 6 of almost equal length to the upper frame 5 in its upward, pivotally mounting a ferry boat frame 7, ordinarily erected upward to be turned downward when delivery of the container 23 is performed between itself and a container ship 25 to be engaged with one end of an on- board portal frame 15 to connect it to the lift frame 6, in one end thereof, laying respectively a rail 13, 13a, 13b for moving trolley on the lift frame 6, the ferry boat frame 7, and the on-board portal frame 15, and having the trolley 10 traveling on this rail 13, 13a, 13b for moving the trolley to hoist up and lower down the container 23.

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 for loading and unloading containers while moving at a quay, a container yard, etc., and in particular, for transferring containers between small and medium-sized container ships. The present invention relates to a self-propelled portal container crane.

[0002]

2. Description of the Related Art FIG. 7 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. 8 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 includes a movable gantry-type gantry having no trolley on a container ship, and a gantry-type gantry on a 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 The purpose of the present invention is to provide a self-propelled portal container crane that 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. And

[0006]

In order to achieve the above object, a self-propelled portal container crane according to the first aspect of the present invention is provided so as 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 gantry, wherein the self-propelled portal container crane is a rail laid on the quay along the longitudinal direction of the container ship. The upper frame is provided so that the left and right legs can be connected to each other above the left and right legs, and a trailer with a container placed between the left and right legs can enter An elevating frame of approximately the same length as the upper frame is provided above the upper frame, and one end of the elevating frame is normally upright and delivers containers to and from the container ship. When pivoting downward, the ferry frame that engages with one end of the shipboard-type gantry and connects the shipboard-type gantry and the elevating frame is pivotally mounted. Each has a trolley for laying a trolley-moving rail and running on the trolley-moving rail for hanging and lowering the container.

A self-propelled portal container crane according to claim 2 of the present application is the self-propelled portal container crane according to claim 1, wherein a space between left and right legs of the self-propelled portal container crane is provided. It has a space in which a trailer on which containers are placed can enter, and a plurality of containers can be stored in multiple rows and rows.

[0008] Preferably, the trolley moving rail is groove-shaped, and the wheels of the trolley are tire-type wheels.

Further, the wheels of the self-propelled portal container crane may be tire-type wheels capable of changing the direction by 90 ° instead of the wheels traveling on the rails.

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 runs on the rail laid on the quay to the ship side of the container ship. The gantry type gantry of the container ship stops above the container to be moved down on the rails of the container ship in the longitudinal direction. When the gantry mount stops, the self-propelled gantry container crane travels and performs front and rear alignment. Thereafter, the lifting frame is raised and lowered to adjust the height of the boat-mounted gantry, and the boat frame is rotated to engage the projection at the tip of the boat-frame with the end of the boat-mounted gantry. When the engagement is over,
The trolley on the self-propelled portal container crane moves through the lifting frame and the ferry frame onto the shipboard type platform,
Stop above 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 gantry-type gantry through the transfer frame to the lift frame of the self-propelled gantry-type 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 again from the elevating frame through the ferry frame to the gantry mount, lifts the next container, and repeatedly unloads the container. 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.

[0011] 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 to be transferred to / from the shipboard type gantry traveling on the container ship, the trolley on the self-propelled gate type container crane on the quay is moved to the shipboard type gantry. Since the loading and unloading of containers is performed, the boom of the container crane is not required, 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.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 1 is a perspective view of a self-propelled portal container crane according to the first aspect of the present invention, showing a state where containers are being unloaded and unloaded from a 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 left and right lower frames of 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 wheels provided at four corners of the lower frame 2, and rails 2 laid on the quay 26.
Drive on 1 The upper frame 5 is provided so as to connect the upper ends of the left and right legs 3 so as to be orthogonal to the lower frame 2. Reference numeral 22 denotes a trailer (chassis) on which the container 23 is placed and transported to the lower part of the portal container crane 1. Reference numeral 6 denotes an elevating frame provided on the upper frame 5 and having substantially the same length as the upper frame 5, and connects the opposite side of a later-described boat frame 7 with a connecting member 6a. The lifting frame 6 is moved up and down by expansion and contraction of four hydraulic cylinders 9 provided on the upper surface of the upper frame 5. Reference numeral 6b denotes a trolley topper provided at one end of the lifting frame 6. Note that the other end of the elevating frame 6 has the ferry frame 7 standing upward, so the ferry frame 7 acts as a trolley topper.

The boat frame 7 is pivotally attached to one end of the lifting frame 6 via pins 8 so as to be able to turn up and down. The ferry frame 7 has its lower end pivotally connected to the end of the elevating frame 6, and normally rises upward by expansion and contraction of a hydraulic cylinder 14 having a rod end attached to the lower surface of the ferry frame 7. When the container 23 is to be transferred between them, the container 23 rotates downward and engages with one end of the boat-mounted gantry 15 to connect the boat-mounted gantry 15 to the lifting frame 6. Reference numeral 7a denotes a downwardly protruding projection provided at the tip of the ferry frame 7, and an upper frame 1 of a boat gate type base 15 described later.
8 are provided so as to be able to be fitted into and removed from a concave portion 18a provided at an end portion of FIG. 8 (FIG. 2).

Reference numeral 10 denotes a trolley for loading and unloading the containers 23 between the ground and the container ship 25. The trolley-moving rails 13 of the lifting frame 6, the trolley-moving rails 13a of the ferry frame 7, and the gantry-type gantry 15 are provided. The trolley moving rail 13b is moved by the wheels 10a, and the spreader 11 that holds the container 23 is suspended below the wire rope 12 via the wire rope 12. The trolley 10 is usually provided in the portal container crane 1, and performs loading and unloading operations of the container 23 with the trailer 22 waiting at the lower part on the elevating frame 6 of the portal container crane 1. When the ship 25 berths and unloads containers 23 from / to the container ship 25, the ship ferry frame 7
The container 23 is reciprocated between the portal container crane 1 and the container ship 25 via the. The rail 13 for moving the trolley of the lifting frame 6, the rail 13 a for moving the trolley of the ferry frame 7, and the gantry 15
The trolley moving rail 13b of the upper frame 18 has the same groove shape. Reference numeral 24 denotes an operator's cab provided on the trolley 10, which moves with the movement of the trolley 10.

The boat-mounted gantry 15 includes a lower frame 16 and a lower frame 1 provided in the longitudinal direction of the container ship 25.
It comprises an upper frame 18 provided on legs 17 provided on 6, and is provided so as to be able to run on wheels 20 laid along a longitudinal direction of a container ship 25 by wheels 19. The concave portions 18a are provided at both ends of the upper frame 18, and depending on the berthing condition of the container ship 25,
Use either left or right. 18b is the upper frame 18
Trolley toppers provided at both ends of the
Similarly to 8a, when one is raised according to the berthing situation of the container ship 25, the other is used so that the other is turned down (FIG. 2).
Then, you stand on the left side and defeat the right side). The undulation of the stopper 18b is performed by a hydraulic cylinder (not shown).

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
Travels on rails 21 laid on the quay 25 to the side of the container ship 25. The gantry-type gantry 15 of the container ship 25 is stopped above the container 23 that is traveling on the rails 20 of the container ship 25 in the longitudinal direction and is going to descend.
When the gantry-type gantry 15 stops, the gantry-type container crane 1 travels to perform front-to-back positioning. Thereafter, the elevating frame 6 is moved up and down to adjust the height of the gantry base 15, and the gantry frame 7 is rotated so that the protrusion 7 a at the tip of the gantry frame 7 engages with the recess 18 a at the end of the gantry base 15. Combine. When the engagement is completed, the trolley 10 on the gate-type container crane 1 moves to the ship-side gate-type base 15 through the elevating frame 6 and the ferry frame 7, and stops above the target container 23. When the trolley 10 is stopped, the spreader 11 is lowered from the trolley 10 onto the container 23 and lifted, and the trolley 10 is moved from the gantry base 15 through the transfer frame 7 to the lifting frame 6 of the portal container crane 1 again. And stop. When the trolley 10 stops, the container 23 is previously lowered onto the trailer 22 waiting at the lower part of the portal-type container crane 1 and delivered.
When the trolley 10 transfers the container 23 to the trailer 22, the trolley 10 moves from the elevating frame 6 to the boat-mounted frame 15 again through the transfer frame 7, lifts the next container 23, and repeatedly unloads the container 23. . Note that, when the shipboard gate-type gantry 15 and the gate-type container crane 1 unload the containers 23 in the same row, the ship-running frame 7 continues to travel in the longitudinal direction of the container ship 25 while being connected to the ship-gate-type gantry 15, and then the other. Lower the row of containers 23.

The loading of the container 23 from the ground onto the container ship 25 is carried out by a process substantially opposite to the process of unloading the container 23 from the container ship 25.

As described above, when the container 23 is transferred between the gantry 15 and the gantry 15 traveling on the container ship 25, the trolley 10 on the gantry container crane 1 on the quay 26 is moved to the gantry 15. Move up to container 23
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, 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.

FIG. 5 is a perspective view of the self-propelled portal container crane according to the second aspect of the present invention, showing a state where containers are being unloaded and loaded with a container ship. It should be noted that the self-propelled portal container crane according to the second aspect of the present invention
4 to FIG. 4, the self-propelled portal container crane 1 according to the first embodiment of the present invention is the same as the self-propelled gate type container crane 1 except that the distance between the left and right legs 3 is different. In FIG. 5, 1A is a self-propelled portal container crane. A trailer 22 on which a container 23 is placed can enter between the left and right legs 3 of the self-propelled portal container crane 1A, and
It has a container storage space 27 in which a plurality of containers 23 can be stored in multiple rows and multiple rows. The trolley 10 directly unloads and stores the container 23 in the container storage space 27 between the legs 3 on the elevating frame 6, or transfers the container 23 to and from the trailer 22 which is waiting at the lower part in advance. When the container ship 25 is not berthing, the container 23 is transferred between the trailer 22 and the container storage space 27.

FIG. 6 is a front view of the wheels of the self-propelled portal container crane according to the present invention. In this example, tire-type wheels are used instead of wheels traveling on rails, so that the vehicle can travel freely in the container yard. In FIG. 6, reference numerals 4A denote tire-type wheels provided at the four corners of the lower frame 2 of the self-propelled portal container crane 1, which can be turned 90 ° by a power steering device (not shown).

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.

[0023]

As described above, the self-propelled portal container crane according to the present invention is provided with an elevating frame above the upper frame, and connected to a boat-mounted gantry mounted on a container ship so as to be able to run on the container ship. A self-propelled portal-type container crane, which has a trolley that pivots a ferry frame so as to connect the portal-type gantry and the lifting frame, and is movable between the container ship and the container ship. And reduced the cost of equipment on the ground, and the weight of the cargo handling equipment on the container ship has been reduced. It works.

[Brief description of the drawings]

FIG. 1 is a perspective view of a self-propelled portal container crane according to the first aspect of the present invention, showing a state where containers are being unloaded and unloaded from a container ship.

FIG. 2 is an enlarged side view of FIG.

FIG. 3 is a plan view of FIG. 2;

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

FIG. 5 is a perspective view of the self-propelled portal container crane according to the second aspect of the present invention, showing a state in which containers are being unloaded and loaded with a container ship.

FIG. 6 is a front view of wheels of the self-propelled portal container crane according to the present invention.

FIG. 7 is a side view of a conventional cargo handling facility of a container terminal.

FIG. 8 is a side view of a conventional shipboard type container crane.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1A Self-propelled portal container crane 2 Lower frame 3 Leg 4 Wheel 4A Tire-type wheel 5 Upper frame 6 Elevating frame 7 Vessel frame 7a Projection 8 Pin 9, 14 Hydraulic cylinder 10 Trolley 11 Spreader 12 Wire rope 13, 13a , 13b Trolley transfer rail 15 Shipboard type gantry 16 Lower frame 17 Legs 18 Upper frame 19 Wheels 20, 21 Rail 22 Trailer (chassis) 23 Container 25 Container ship 26 Quay 27 Container storage space

Claims (4)

[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. The self-propelled gate-type container crane is provided so that it can run on rails laid on the quay along the longitudinal direction of the container ship, and the upper frame connects the left and right legs to each other above the left and right legs. The trailer with the container placed between the left and right legs can enter, and a lifting frame of approximately the same length as the upper frame is provided above the upper frame, and the lifting frame At the one end of the boat, it is usually standing up, and when transferring containers to and from the container ship, it turns downward and engages with one end of the boat gate type gantry, Pass connecting A ship frame is pivotally mounted, and a trolley moving rail is laid on each of the elevating frame, the ferry frame and the gantry type gantry, and the trolley has a trolley for traveling on the trolley moving rail and hanging down the container. A self-propelled portal container crane characterized by becoming. 2. The self-propelled portal container crane according to claim 1, wherein a trailer on which a container is placed can enter between left and right legs of the self-propelled portal container crane.
In addition, a self-propelled portal container crane having a space in which a plurality of containers can be stored in multiple stages and multiple rows. 3. The self-propelled portal container crane according to claim 1, wherein the trolley moving rail is groove-shaped, and the wheels of the trolley are tire-type wheels. 4. The wheel of a self-propelled portal container crane,
The self-propelled portal container crane according to claim 1, wherein the self-propelled portal container crane is a tire-type wheel capable of changing a direction by 90 ° instead of a wheel traveling on a rail.