JPH1111871A - Traversing device of cargo handling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traversing device equipped with a plurality of trolleys in which each trolley can pass other trolleys in traveling. SOLUTION: A traversing device for a cargo handling machine is composed of a pair of main trolley rails 10 installed approx. horizontally between a left and a right main beams 17 constituting a girder 9, main trolleys 11 and 12 capable of running along the rails 10, a pair of supplementary trolley rails 13 installed parallel with the main trolley rails 10 on the left and right sides of the girder 9, supplementary trolleys 14 capable of running along the rails therefore 13, a pair of aux. trolley rails 15 installed parallel with the main trolley rails 10 right over and left over the girder 9, and aux. trolleys 16 capable of running along the aux. trolley rails 15. Each of the main trolleys 11 and 12, supplementary trolleys 14, and aux. trolleys 16 can pass others in traveling and move over the whole length of the girder 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traversing device for a cargo machine.

[0002]

2. Description of the Related Art FIG. 5 shows an example of a conventional container crane. The container crane travels along a pair of rails 2 laid on a quay 1 and an upper end of the leg 3. And the traversing device 4 provided in the above.

The traversing device 4 is composed of a folding girder 5 whose tip can protrude above the sea surface, and a trolley 6 running along the girder 5.

[0004] A spreader 8 capable of locking a container 7 is suspended from the trolley 6 so as to be able to move up and down with respect to the trolley 6.

[0005] In the container crane shown in FIG. 5, the combination of the running of the leg 3 with respect to the rail 2, the movement of the trolley 6 with respect to the girder 5, the raising and lowering of the spreader 8 with respect to the trolley 6, and the locking of the container 7 by the spreader 8 is performed. A ship (not shown) berthing to the quay 1 unloads the container 7 to the quay 1 and loads the container 7 from the quay 1 to the ship.

[0006]

However, in recent years, as the size of the ship has been increased, the height of the legs 3 and the total length of the girder 5 have increased, and the distance of ascending and descending of the spreader 8 and the traversing distance of the trolley 6 have increased. As a result, the cycle of unloading and loading of one container 7 tends to be long.

A traversing device has been proposed in which a plurality of trolleys travel along a single girder.
Because each trolley uses a common rail, each trolley cannot overtake the other, and therefore
When such a traversing device is applied to a container crane, the cargo handling efficiency cannot be significantly improved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a traversing device for a cargo handling machine in which a single girder is equipped with a plurality of trolleys and each trolley can overtake another trolley. I have.

[0009]

According to a first aspect of the present invention, there is provided a traversing device for a cargo handling machine which is disposed between a pair of left and right beams constituting a girder and is substantially horizontal to the girder. A pair of main trolley rails supported on the main trolley rail, and a main trolley that can run along the main trolley rail, and are disposed on the left and right sides of the girder and are parallel to the main trolley rail on the girder. A pair of auxiliary trolley rails supported, auxiliary trolleys that can travel along the auxiliary trolley rails, and are disposed above and below the girder in the left and right direction and supported by the girder in parallel with the main trolley rails. A pair of auxiliary trolley rails and an auxiliary trolley that can travel along the auxiliary trolley rail.

According to a second aspect of the present invention, in addition to the configuration of the traversing device for a cargo handling machine according to the first aspect of the present invention, a spreader capable of locking the container to the main trolley is provided. The container cradle that supports the container is suspended by the auxiliary trolley, and the auxiliary trolley suspends the extendable and extendable suspension guide that can guide the four corners of the container.

In any one of the traversing devices for a cargo handling machine according to the first and second aspects of the present invention, the main trolley runs on the main trolley rail, and the auxiliary trolley runs on the auxiliary trolley rail. In addition, since the secondary trolley runs on the secondary trolley rail, each of the trolleys can overtake each other, and each trolley moves along the entire length of the girder without being affected by the others.

In the traversing device for a cargo handling machine according to a second aspect of the present invention, each of the main trolley, the auxiliary trolley, and the auxiliary trolley does not need to move over the entire length of the girder.
The cycle of unloading or loading individual containers is shortened.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of an embodiment of a traversing device of a cargo handling machine according to the present invention. The traversing device of the cargo handling machine includes a girder 9 and a pair of left and right main trolley rails 10.
A first main trolley 11 and a second main trolley 12 running along the main trolley rail 10, a pair of left and right auxiliary trolley rails 13, and a auxiliary trolley running along the auxiliary trolley rail 13. The vehicle includes a trolley 14, a pair of left and right auxiliary trolley rails 15, and an auxiliary trolley 16 traveling along the auxiliary trolley rail 15.

The girder 9 includes a pair of left and right main beams 17 extending substantially horizontally, and a coupling member 18 disposed at a predetermined interval in the longitudinal direction of the main beams 17 and fixed to the upper portions of the left and right main beams 17. And a sub-beam 19 disposed above both sides of the main beam 17 and fixed to the left and right ends of the coupling member 18.

At the lower end of each main beam 17, there is provided a rail base 20 projecting right and left and extending over substantially the entire length of the main beam 17.

The main trolley rail 10 is laid on the upper surface of a portion of the rail base 20 located inside the main beam 17 so as to be located between the left and right main beams 17 constituting the girder 9. .

First main trolley 11 and second main trolley 1
2 has a main trolley main body 21 disposed between the left and right main beams 17 and a traversing wheel 22 pivotally supported by the main trolley main body 21 and rolling on the main trolley rail 10.

The first and second main trolleys 11, 12
May be a self-propelled system in which a motor for driving the traversing wheels 22 is mounted on the main trolley body 21, or
The main trolley body 21 may be pulled by a winch provided at the base end of the girder 9.

The auxiliary trolley rail 13 is located outside the girder 9 so that the main beam 1
7 is laid on the upper surface of the portion located outside.

The auxiliary trolley 14 includes a pair of auxiliary trolley bodies 23 disposed on the left and right sides of the girder 9, and a pair of auxiliary trolley rails 13 pivotally supported by the auxiliary trolley bodies 23.
Rolling along a traversing wheel 24 rolling on the upper side and a lower guide rail 25 pivotally supported by each auxiliary trolley body 23 and laid on the side of the rail base 20 so as to be located on the left and right sides of the girder 9. Lower guide wheel 26 and each auxiliary trolley body 2
3 and an upper guide rail 27 laid on the side of the sub-beam 19 so as to face the upper part of the main beam 17.
And an upper guide wheel 28 that rolls along.

Each of the auxiliary trolleys 14 has a
A self-propelled system equipped with a motor for driving the traversing wheels 24 may be used, or a traction system in which each auxiliary trolley body 23 is pulled by a winch provided at the base end of the girder 9.

The auxiliary trolley rails 15 are laid on the upper surfaces of the left and right auxiliary beams 19 constituting the girder 9.

The auxiliary trolley 16 includes a pair of auxiliary trolley bodies 29 disposed on the left and right sides of the girder 9, and a traverse that is pivotally supported by each of the auxiliary trolley bodies 29 and rolls on the auxiliary trolley rail 15. It has wheels 30 and guide rollers 32 pivotally supported by each sub-trolley body 29 and rolling along guide rails 31 laid on the side of the sub-beam 19 so as to be located on the left and right sides of the girder 9. doing.

The sub trolley 16 is provided with each sub trolley main body 29.
A self-propelled system equipped with a motor for driving the transverse wheels 30 may be used, or a traction system in which each sub trolley body 29 is pulled by a winch provided at the base end of the girder 9.

In the traversing device of the cargo handling machine having the above-described configuration, the traversing wheels 2 of the first and second main trolleys 11 and 12 are used.
2 rolls on the main trolley rail 10, the traversing wheels 24 of the auxiliary trolley 14 roll on the auxiliary trolley rail 13, and the traversing wheels 30 of the auxiliary trolley 16 move on the auxiliary trolley rail 15. , The first and second main trolleys 1
Each of the first and second main trolleys 11 and 12 and the first and second supplementary trolleys 14 and 16 can mutually overtake each other. Girder 9 without being affected by others
Can be moved over the entire length of the vehicle.

When the traversing device of the cargo handling machine shown in FIG. 1 is applied to a container crane, the container 7 is locked to the first and second main trolleys 11 and 12 as shown in FIG. The obtained spreader 8 is suspended so as to be able to move up and down, and the auxiliary trolley has a parallel link mechanism 3 having a container receiving member 33 for supporting the container 7 from below as shown in FIG.
As shown in FIG. 4, when the container 7 is moved up and down with respect to the vessel, the suspension guide 35 for guiding the four corners of the container 7 is hung down on the sub trolley 16.

A parallel link mechanism 34 provided on the auxiliary trolley 14
As shown in FIG. 3, the upper end of the upper link 37 pivotally supported on the upper end of the auxiliary trolley body 23 via the pin 36, and the upper end of the bracket provided on the connecting member 38 at the lower end of the auxiliary trolley body 23, as shown in FIG. A lower link 41 pivotally supported by a pin 39 via a pin 40, and an upper end is connected to a lower end of the upper link 37 by a shaft 4.
2 and a connecting link 44 pivotally supported at the lower end of the lower link 41 at the lower end of the lower link 41 via a pin 43, and the auxiliary trolley body 23 and the upper link 37
And the lower link 41 and the connecting link 44 form a parallelogram. The base of the cylinder body 45 is pivotally supported via a pin 47 to a bracket 46 provided on the connecting member 38 of the auxiliary trolley body 23 via a pin 47 and a piston rod 48 Is formed to be expandable by the expansion and contraction of a piston rod 48 of a hydraulic cylinder 49 pivotally attached to the shaft 42.

The container receiving member 33 is provided at the lower end of the connecting link 44 so as to be horizontally rotatable by a driving device (not shown).

Further, a side surface near the lower end of the connecting link 44 is supported by a hinge 50 disposed in the vertical direction, and the driving device (not shown) is mounted around the hinge 50 so that the hinge 50 can be brought into contact with the side surface of the container 7. A rotatable container lateral holding member 51 is provided.

The parallel link mechanism 34 forms a pair facing each other with the main beam 17 of the girder 9 interposed therebetween, and the four corners of the container 7 are supported by the container receiving member 33. 49 increases the space between the container receiving members 33 (girder width direction)
By reducing the size, it is possible to cope with a change in the length of the container 7.

The suspension guide 35 provided on the sub trolley 16 is
As shown in FIG. 4, four arms whose upper ends are rotatably supported by vertical shafts 52 provided on the outer side surface of each sub trolley body 29 at predetermined intervals in the longitudinal direction of the sub trolley main body 29. A pair of front and rear beams 55, 55 having both ends pivotally attached to the lower end of each arm 53 by a vertical shaft 54 and extending substantially horizontally in a direction perpendicular to the girder 9;
Moving frames 56, 56, which are stretched between the moving frames 5, 55, and move along the beam 55 while maintaining a symmetric position with respect to the longitudinal center of the beam 55,
Suspension guide member 5 attached below 6,56
And 7.

The arm 53 is formed substantially in the shape of a letter C. The lower end of the arm 53 extends substantially horizontally and is positioned at the same level as the beam 55. The end of this lower end is connected to the end of the beam 55 via the vertical shaft 54. Connected to the department.

The vertical shaft 52 at the upper end and the vertical shaft 54 at the lower end of the arm 53 are arranged on the same perpendicular line. When a hydraulic cylinder (not shown) is operated, the arm 53 is moved around the vertical shafts 52 and 54. It can be rotated.

When handling a long container 7, each arm 53 is positioned in the extending direction of the beam 55 as shown in FIG. 4, and when handling a short container 7, a hydraulic cylinder (not shown) is operated. By arm 5
When the sub trolley 16 is moved onto the ship by rotating the sub trolley 16 to a position parallel to the extending direction of the sub trolley main body 29 by rotating the sub trolley 3 by approximately 90 degrees, each arm 53 does not contact the bridge or the like of the boat. It is formed as follows.

The suspension guide member 57 includes a moving frame 56.
A horizontal member 58 pivotally supported via a horizontal shaft (not shown), and a plurality of nested square steel pipe guides of different sizes which are suspended from both ends of the horizontal member 58. Members 57a, 57b, 57c, 57d, 57e, 5
7f, and has an expansion device (not shown) that expands and contracts the suspension guide member 57.

When the suspension guide member 57 is lifted or suspended by the above-described expansion and contraction device, the suspension guide member 57 expands and contracts so that the lower guide member fits inside the upper guide member.

Further, a fixing device (not shown) for locking the lower portion of the suspension guide member 57 on the deck is provided below the suspension guide member 57.

As described above, when the parallel link mechanism 34 is provided on the auxiliary trolley 14 and the suspension guide 35 is provided on the sub trolley 16, a predetermined intermediate position in the longitudinal direction of the girder 9 is used for unloading or loading the container 7. The auxiliary trolley 14 is moved to the position, the auxiliary trolley 16 is positioned above the hold of the ship, and the suspension guide member 57 is extended toward the hold.

Thereafter, the first main trolley 11 traverses the girder 9, the spreader 8 moves up and down with respect to the main trolley 11, and the container 7 is locked by the spreader 8, the auxiliary trolley 14 traverses the girder 9, and the parallel link mechanism. 3
By the combined operation of opening and closing of the container 4, the operation of transferring the container 7 from the ship (not shown) berthing to the quay 1 to the parallel link mechanism 34 and the operation of loading the container 7 from the parallel link mechanism 34 to the ship are performed. At this time, the container 7 is guided by the suspension guide 35 and moves up and down stably.

Also, the second main trolley 1 for the girder 9
2, raising and lowering of the spreader 8 with respect to the main trolley 12 and locking of the container 7 by the spreader 8, traversing of the auxiliary trolley 14 with respect to the girder 9, and the parallel link mechanism 3
By the combined operation of opening and closing 4, the container 7 is unloaded from the parallel link mechanism 34 to the quay 1, and the container 7 is transferred from the quay 1 to the parallel link 34.

Therefore, when the container 7 is unloaded or loaded, the first main trolley 11, the second main trolley 12, the auxiliary trolley 14, and the auxiliary trolley 16 move over the entire length of the girder 9. There is no need to do so, and the cycle of unloading or loading one container 7 is shortened, and the efficiency of cargo handling is greatly improved.

The traversing device of the cargo handling machine according to the present invention is not limited to the above-described embodiment. For example, a main trolley 11 provided with a spreader 8 on a main trolley rail 10 is provided. A supplementary trolley 14 provided with the spreader 8 on the rail 13 and a sub trolley 16 provided with a suspension guide 35 on the sub trolley rail 15 may be provided. Of course, various changes can be made.

[0044]

As described above, according to the traversing device for a cargo handling machine of the present invention, the following excellent effects can be obtained.

(1) In the traversing device for a cargo handling machine according to the first aspect, the main trolley runs on the main trolley rail, the auxiliary trolley runs on the auxiliary trolley rail, and further, the auxiliary trolley runs on the auxiliary trolley rail. Runs on the secondary trolley rails, so that each of the trolleys can overtake the others and each trolley can travel the full length of the girder without being affected by the others.

(2) In the traversing device of the cargo handling machine according to the second aspect, each of the main trolley, the auxiliary trolley, and the auxiliary trolley does not need to move over the entire length of the girder, and the unloading operation or loading of one container. The work cycle is shortened, and the cargo handling efficiency is greatly improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of an embodiment of a traversing device of a cargo handling machine according to the present invention.

FIG. 2 is a side view of an example in which the traversing device of FIG. 1 is applied to a container crane.

FIG. 3 is a front view of a parallel link mechanism related to FIG. 2;

FIG. 4 is a front view of the suspension guide associated with FIG. 2;

FIG. 5 is a side view showing an example of a conventional container crane.

[Explanation of symbols]

 Reference Signs List 7 container 8 spreader 9 girder 10 rail for main trolley 11 main trolley 12 main trolley 13 rail for auxiliary trolley 14 auxiliary trolley 15 rail for auxiliary trolley 16 auxiliary trolley 17 beam (main beam) 33 container holder (container receiving member) 35 suspension guide

Claims (2)

[Claims] 1. A pair of main trolley rails disposed between a pair of left and right beams constituting a girder and supported substantially horizontally by the girder, and a main trolley movable along the main trolley rails; A pair of auxiliary trolley rails disposed on the left and right sides of the girder and supported by the girder in parallel with the main trolley rail; an auxiliary trolley operable along the auxiliary trolley rail; And a pair of auxiliary trolley rails disposed on the left and right sides of the vehicle and supported by the girder in parallel with the main trolley rail, and an auxiliary trolley that can travel along the auxiliary trolley rail. A traversing device for a cargo machine. 2. A main trolley suspends a spreader capable of locking a container in a vertically movable manner, a supplementary trolley suspends a container support supporting the container, and guides the four corners of the container to a sub trolley and is extendable and contractable. 2. The traversing device of a cargo handling machine according to claim 1, wherein the suspension guide is suspended.