JPH10120366A - Container guide device for container crane - Google Patents

Abstract

(57) [Abstract] [Problem] To facilitate the handling of container cranes. SOLUTION: A pair of saddles movably facing each other on a crane girder, a pair of traversing beams suspended below the saddle in a direction perpendicular to the moving direction of the saddle, and an upper end pivotally supported by the saddle. And the lower end is bridged between the traversing beams and four substantially C-shaped arms pivotally attached to both ends of the traversing beam to maintain a symmetric position on the traversing beam with respect to the center of the traversing beam. A pair of traversing frames that traverse while extending, and a telescopic suspension guide that is attached from the traversing frame and attached to the four corners to guide the container when lifting and lowering the container. Move the arm in a state where the traversing frame can traverse to the horizontal portion at the lower end of the arm, and move the arm approximately 90 °.
Rotate to avoid interference with container ship bridge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container guide device for a container crane, and more particularly, to a container crane installed on a quay such as a container wharf for loading and unloading containers on a container ship. The present invention relates to a container guide device for moving on a crane girder of a crane and positioning it on the deck of a container ship, guiding the container and stacking the container in the hold and on the deck.

[0002]

2. Description of the Related Art A container crane is conventionally used as a cargo handling device installed on a quay such as a container wharf for loading and unloading containers on a berthed container ship. In addition, in conventional container ships, containers are generally guided and stacked by container guides standing in the hold, and since there is no container guide on the deck, they are stacked directly, and the four corners of each container are connected. They are fixed with metal fittings. On the other hand, there is a hatch-coverless container ship in which a container guide erected in a hold is extended to above the deck, and the container guide is stacked so as to communicate between the inside of the hold and the upper part of the deck.

FIG. 15 is a side view of a conventional container crane. a is a container crane that travels on a traveling rail c laid along a quay b. d is the leg of the container crane. e is the running rail c above the leg d.
It is a girder provided horizontally so as to go straight. f is a boom provided so as to protrude toward the sea side of the girder e, and is connected to be rotatable in a vertical direction. A girder e and a boom f constitute a crane girder. When the container ship s berths, the boom f rises upward so as not to obstruct the berthing, and is held horizontally so as to protrude above the container ship s when carrying out cargo handling work. g is a trolley movably provided on the girder e and the boom f. Reference numeral h denotes a spreader, which is a suspending tool for the container j. The spreader h is suspended from the trolley g by a rope i.

[0004]

However, when loading and unloading containers to and from a container ship using a conventional container crane, cargo is handled in such a manner as to pass through the shortest distance between the container ship and the quay. Because of the sway caused by the inertia of motion, in a conventional container ship having no container guide on the deck, when stacking containers, it is difficult to position the containers vertically and it takes time to load and unload the containers. In addition, even if the container guide is erected in the hold, there is also inconvenience, such as the container swinging, which makes it troublesome to align and insert the container guide with the container guide. Further, there is a demand for a problem of a scaffold when attaching and detaching a connecting fitting used for stacking containers, and an improvement in transportation and arrangement of the connecting fitting.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. When loading and unloading containers on a conventional container ship, the present invention reduces the swinging of the containers and, in particular, decks without container guides. It is an object of the present invention to provide a container guide device of a container crane that guides the container when stacking containers thereon, and performs the work of attaching and detaching the connection fitting of the container on a work scaffolding device provided on a suspension guide. It is assumed that.

[0006]

According to the present invention, there is provided a trolley that moves on a crane girder, and a container is lifted and lowered by a spreader suspended from the trolley, and the container is unloaded and loaded on a container ship. A container guide device for a container crane, comprising: a pair of saddles movably facing each other on the crane girder; and a pair of traversing beams suspended below the saddle in a direction perpendicular to the direction of movement of the saddle. The saddle has a substantially C-shaped upper end pivotally supported at its upper end and a lower end pivotally attached to both ends of the transverse beam.
A pair of traversing frames that are suspended between the book arms and the traversing beam and that traverse the traversing beam while maintaining a symmetric position with respect to the center of the traversing beam; A stretchable suspension guide that guides the container at the four corners when the container is moved. A container guide device for a container crane, characterized in that the container guide device is configured to be rotated by 90 ° so as to avoid interference with the bridge of the container ship so that the container can be loaded and unloaded while approaching the bridge. You.

According to a preferred embodiment of the present invention, the suspension guide comprises a plurality of nested rectangular steel pipes of different sizes and guide rails extending from each rectangular steel pipe.

According to a preferred embodiment of the present invention, the traversing frame is provided with an auxiliary traversing frame which can be tilted on a lower surface, and a suspension guide is attached to the auxiliary traversing frame to adjust the angle of the suspension guide. Adaptable to hull inclination.

Furthermore, according to a preferred embodiment of the present invention, the suspension guide is provided with a working scaffolding device.

[0010] According to the container guide device of the container crane configured as described above, the traversing frame is traversed in accordance with the length of the container, and the arm is moved substantially 90 degrees.
Rotating so that it can respond to changes in the length of the container. Also, when handling short containers,
If the arm is retracted, even if the saddle moves onto the container ship, it will not interfere with the bridge. In addition, since a stretchable suspension guide that guides the container at the four corners is attached to the traversing frame, it is possible to cope with the vertical movement due to the tide of the container ship.

The traversing frame is provided with an auxiliary traversing frame which can be tilted on the lower surface, and a suspension guide is attached to the auxiliary traversing frame, and the angle of the suspension guide is adjusted so that the hull can be inclined to guide the container. So that the container can be accurately guided.

Further, since the suspension guide is provided with a work scaffolding device, when stacking containers on this work scaffolding device, the work of attaching and detaching the connection fittings is facilitated, and the transportation and connection of the connection fittings is facilitated. Improvement of work environment such as organizing can be achieved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. 1 to 7
1 shows an embodiment of the present invention, FIG. 1 is a side view of a container crane, FIG. 2 is a front view of a saddle and a suspension guide, a view in which the suspension guide is extended, FIG. 3 is a side view of FIG.
4 is a side view of the saddle and the suspension guide, showing a state in which the suspension guide is contracted, FIG. 5 is a plan view of the upper end of the saddle and the arm, and FIG. 6 is a plan view of a part of the transverse beam and a lower horizontal portion of the arm. FIG. 7 is a partially cutaway side view of the traversing beam.

As shown in FIGS. 1 to 4, reference numeral 1 denotes a container crane which runs on a running rail 50 laid along a quay 49. 2 is a container crane leg,
2a is a traveling wheel provided at the lower part of the leg. Reference numeral 3a denotes a girder provided horizontally above the legs 2 so as to be orthogonal to the running rail 2a. Reference numeral 4 denotes a boom provided on the girder 3a so as to project toward the sea, and is connected to be rotatable in the vertical direction. The girder 3a and the boom 4 constitute the crane girder 3. Reference numeral 5 denotes a trolley which is moved on a rail 6 provided on the crane girder 3 by a moving device (not shown), and 7 is a vertical wheel thereof (FIGS. 2, 3 and 4). A spreader 43 is suspended from the trolley 5 by a rope 44 to transfer the container 47 between the container ship and the ground facilities on the quay. In addition, 4
Reference numeral 5 denotes a sheave provided on the lower surface of the trolley 5, and 46 denotes a sheave provided on the upper surface of the spreader 43, which suspends the spreader 43 around a wire rope 44. 1
Reference numeral 0 denotes a pair of saddles movably facing each other on the crane girder 3. Reference numeral 12 denotes an arm provided on the saddle 10.
Each will be described in detail later.

As shown in FIGS. 2 to 7, the saddle 10 is provided with a pair of traversing beams 13 which extend downward in a direction perpendicular to the direction in which the saddle 10 moves. Saddle 10
, The upper end of which is pivotally supported by a vertical axis 11 and the lower end of which is pivotally connected to the transverse beam 13 by a vertical axis 23 (FIGS. 6 and 7).
An arm 12 formed in a mold is provided. A pair of traversing frames 14, 14A which are bridged between the traversing beams 13 and traverse on the traversing beam 13 while maintaining a symmetric position with respect to the center of the traversing beam 13 (FIGS. 3, 4, 6, and 7). Is provided. When the container 47 is moved up and down, the extendable suspension guides 15 that guide the container 47 at four corners are attached to the horizontal frames 14 and 14A below. The vertical axis 11 at the upper end of the arm 12 and the vertical axis 23 at the lower end of the arm 12 are located on the same perpendicular so that the arm 12 can rotate. Reference numeral 8 denotes a rail laid so as to face the crane girder 3, and reference numeral 9 denotes vertical wheels of a saddle 10 running on the rail 8.

The container 47 includes, for example, a long container 47a of 40 feet indicated by a solid line in FIG. 2 and a short container 47b of 20 feet indicated by a virtual line. When unloading a 40-foot container 47a, the traversing frames 14, 14A are traversed to the horizontal portion 12a at the lower end of the arm 12, as shown by the solid line in FIG. In addition, when loading and unloading a 20-foot container 47b, FIG.
The traversing frames 14 and 14A traverse toward the center of the traversing beam 13 as indicated by phantom lines. When the traversing frames 14 and 14A are moved in accordance with the length of the container 47 to load and unload the 20-foot container 47b, the arm 12 is connected to the upper surface of the saddle 10 as shown in FIGS. Approximately 90 by hydraulic cylinder 29 provided in
Rotate to a retracted state so that the saddle 10 does not obstruct the bridge or the like even if it moves over the container ship. 10a is a saddle 1 as shown in FIGS.
0 is a saddle lifting prevention device provided at the lower end of the crane girder 3 so as to enter below the crane girder 3. 2 and 4, the hydraulic cylinder 29 is omitted.

FIG. 8 is a partially enlarged side view of the suspension guide of FIG. 2, FIG. 9 is a plan view of FIG. 8, and FIG. 10 is a side sectional view of FIG. The suspension guide 15 is shown in FIGS. 2, 3, 4, 8, and 9.
As shown in FIG. 10 and FIG. 10, a plurality of nested rectangular steel pipes 15a, 15b, 15c, 15d, 1 of different sizes are provided.
5e and 15f, which can be expanded and contracted. During the cargo handling operation of the containers 47 and 47a, the containers 47 and 47a are used.
2 and 3, while being extended, the lower end is fixed on the deck of the container ship 48, and when the cargo handling operation is completed, the crane is retracted as shown in FIG. It moves on the girder 3 to the land side. Each square steel pipe 15a, 15b, 15c, 15d, 15
At e and 15f, a guide rail to be described later is provided to protrude. 15g is each square steel pipe 15a, 15b, 15
The flanges protrude from the outer peripheral surfaces of c, 15d, 15e, and 15f and are provided in a headband shape.

As shown in FIG. 9, each rectangular steel pipe 15a, 15b, 15c, 15d, 15e, 15
To f, a guide rail 20 for guiding the width direction of the container 47 and a guide rail 21 for guiding the length direction of the container 47 are fixed, and when the suspension guide 15 is contracted, the respective guide rails 20 and 21 are fixed. The mounting positions are shifted so as not to interfere with each other. Further, the guide rail 21 is provided with each of the square steel pipes 15a, 15b, 15c, 15
It is fixed to a guide rail support arm 17 rotatably attached to d, 15e, 15f. As shown in FIG. 8, for example, the guide rail support arm 17 is rotatable by a hydraulic cylinder 16 provided on flanges 15g provided at two places below the upper rectangular steel pipe 15b. As shown by the imaginary line in FIG. By fixing the guide rail 20 and the guide rail 21 to the lower portion of the upper rectangular steel pipe 15b and shifting and fixing the guide rail 20 and the guide rail 21, the upper ends of the guide rail 20 and the guide rail 21 are raised when the suspension guide 15 is contracted. It can rise along with the outer surface of the square steel pipe 15b. Reference numeral 19 denotes a mounting member for the guide rail support arm 17 fixed to the rectangular steel pipe 15b.

The traversing frame 14 is shown in FIGS.
As shown in FIG. 5, the traversing beam 13 and the traversing device 22 for the traversing frame move on the traversing beam 13 via the vertical wheels 14a rotating between the lower rail 13a and the upper rail 13b laid on the lower horizontal portion 12a of the arm 12. It is supposed to. Reference numeral 14b is a container guide provided on the traversing frame 14 so as to open upward. In FIG. 6, the upper rail 13b is omitted.

As shown in FIGS. 11 and 12, reference numeral 24 denotes a transverse auxiliary frame which is pivotally attached to the lower surface of the transverse frame 14 by a horizontal shaft 25 via a bracket 26. 27
Is a hydraulic cylinder 27 having a base end attached to the traversing auxiliary frame 24 and a distal end attached to the traversing frame 14 by pins 28 and 28a, respectively. When the suspension guide 15 is fixed on the deck 48a of the container ship 48, The cylinder 27 adjusts the angle of the suspension guide 15 to a substantially vertical state and buffers the swing of the suspension guide 15 so as to adapt to the hull inclination.

As shown in FIG. 7, a traversing device 22 for a traversing frame includes a rotation driving device 22a provided at the center of the traversing beam 13 and a traversing beam 13 with the rotation driving device 22a interposed therebetween.
A chain wheel 22b provided at both ends of the chain 22a, a chain 22c wound around the rotary drive device 22a and the chain wheel 22b, and a connecting member 22d having one end fixed to the chain 22c and the other end fixed to the traversing frame 14.
It is composed of And the traversing frame 14
The traversing beam 13 is moved by the traversing device 22 for the traversing frame.
And a traversing beam 1 on the lower horizontal portion 12a of the arm 12.
3 while keeping a symmetrical position with respect to the center. That is, in FIG. 7, the connecting member 22d of the right traversing frame 14 is fixed to the upper side of the chain 22c, and the connecting member 22e of the left traversing frame 14A is
Since they are fixed below the chain 22c, they move in opposite directions.

FIG. 12 is a side view showing the suspension guide telescopic device. Reference numeral 32 denotes a suspension guide extending / contracting device that extends / contracts the suspension guide 15, and is provided on a work scaffolding device 36 provided on the uppermost rectangular steel pipe 15a of the suspension guide 15. The suspension guide telescopic device 32 includes a chain wheel 34, a rope winding drum 35 with a chain wheel, a sheave 35a, and a wire rope 33. The wire rope 33 wound around the rope winding drum 35 is connected to a sheave 35 provided on the traversing auxiliary frame 24 (FIGS. 11 and 12).
a, and the lower end is fixed to the lower part of the suspension guide 15, so that the suspension guide 15 is lifted and suspended, and the lower rectangular steel pipe is extended and contracted so as to fit into and out of the upper rectangular steel pipe. It has become.

FIG. 13 is a view showing a state in which the lower end of the suspension guide 15 is held on the deck 48a of the container ship. 3
Reference numeral 7 denotes a suspension guide fixing device provided on the lower surface of the work scaffolding device 36A provided on the second rectangular steel pipe 15e from the bottom of the suspension guide 15, and a support member 3 of the suspension guide fixing device 37.
8, two sets of rope winding drums 37a and 37b provided on the support member 38, and sheaves 39 provided at both ends thereof.
And a rope 40 having one end fixed to the left and right rope winding drums 37a and 37b. When the lower end of the suspension guide 15 is held on the deck 48a of the container ship, one end of the rope 40 is connected to the lowermost work scaffolding device 3.
Deck 4 via a plurality of guides 41 arranged on the lower surface of 6B
The rope 40 is pulled by being hooked on a rope locking hook 42 appropriately disposed on the wire 8a, and the wire rope 40 is held in tension. At this time guide 4
1 and the position of the rope locking hook 42 are appropriately selected to lock the rope 40. The rope winding drums 37a and 37b of the suspension guide fixing device 37 are driven by a hydraulic or torque motor (not shown), and are structured to be released when a strong force is applied while pulling continuously.

FIG. 14 is a side view of the container ship 48.
b is a bridge of the container ship 48. L1 and L2
Indicates the length of the container 47. As shown in FIG. 1, the container crane 1 is installed on the quay 49 so as to be orthogonal to the container ship 48, and the spreader 43 of the trolley 5 has a length L1 or L
The container 47 is expanded and contracted in accordance with 2 and lifted and moved. At this time, the crane girder 3 needs to extend over the container ship 48. Short container 4 as shown in FIG.
When the arm 7b is stacked adjacent to the bridge 48b, the arm 12 is turned by 90 ° and retracted, and the arm 12 is retracted.
Does not hit the bridge 48b.
And the container 47b can be stowed or unloaded.

Next, the operation of the present embodiment will be described. An example in which the container crane 1 is used to load a container 47 on a container ship 48 will be described. When the container ship 48 arrives at the shore, the standing boom 4 is turned and held horizontally. Next, at least one worker 51 enters the work scaffolding device 36B of the suspension guide 15 at the land side leg position of the container crane 1 and moves the saddle 10 on the crane girder 3 while contacting the operator of the container crane 1. To the position where the container 47 is to be loaded and stopped.
4 is traversed on the traversing beam 13 to adjust the length interval.
Subsequently, the suspension guide 15 is extended to fix the lower end to the deck 48 a of the container ship 48. In this state, container 47
The trolley 5 is moved along the crane girder 3 and stopped at the position of the saddle 10. Next, the spreader 43 is lowered and the suspension guide 15
Using the container 47 as a guide to the deck 4 of the container ship 48
The worker 51 unloads the cargo on the cargo hold 8a or in the hold, and the worker 51 performs the attachment work on the work scaffolding devices 36A and 36B provided on the suspension guide 15. Then, a plurality of containers 47 are stacked on the deck 48a of the container ship 48 according to such a procedure. When the stacking is completed at the same position, the lower end of the suspension guide 15 fixed earlier is removed, and the saddle 10 is moved to the next loading position, and the suspension guide 1 is moved.
5 is held on the deck 48a, and the containers 47 are stacked on the deck 48a of the container ship 48 in the same manner as described above. In this way, the predetermined container 47 is stacked on the deck 48a of the container ship 48. When loading in the hold, a container guide (not shown) is provided upright in the hold, so the trolley 5 is moved to above the container guide, the spreader 43 is lowered, and the container guide is used as a guide. The container 47 can be loaded and unloaded in the hold of the container ship 48, but also in this case, if the suspension guide 15 is positioned and guided on this container guide, the unwinding distance is reduced as much as possible. The container 47 can be smoothly loaded and unloaded in the hold of the container ship 48 without being affected by the swing due to the wind or the swing due to the kinetic inertia of the container's own weight.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention, for example, by replacing the suspension guide with a square steel pipe and using a round steel pipe. Of course.

[0027]

As described above, according to the present invention,
A saddle is provided so as to be able to traverse on a crane girder of a container crane, and an arm having a traverse frame provided with an extendable suspension guide is provided at a lower end of the saddle,
Since the lower end of the suspension guide is fixed on the deck of the container ship and the container is guided while the container is being handled,
The unwinding distance of the container is reduced as much as possible, and it is possible to reduce the sway of the container due to the wind and its own weight, etc., so that accurate positioning can be achieved. Therefore, it is possible to shorten the work time of container handling and improve the work efficiency. It has the effect.

[Brief description of the drawings]

FIG. 1 is a side view of a container crane of the present invention.

FIG. 2 is a front view of the saddle and the suspension guide, in which the suspension guide is extended.

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

FIG. 4 is a side view of the saddle and the suspension guide, in which the suspension guide is contracted.

FIG. 5 is a plan view of a saddle and an arm.

FIG. 6 is a plan view of a part of a traversing beam and a horizontal portion at a lower end of an arm.

FIG. 7 is a partially cutaway enlarged view of a transverse beam.

FIG. 8 is a partially enlarged side view of the suspension guide.

FIG. 9 is a plan view of FIG.

FIG. 10 is a longitudinal sectional view of FIG. 9;

FIG. 11 is a partially enlarged view of a horizontal frame.

FIG. 12 is an enlarged view of the upper part of the suspension guide telescopic device.

FIG. 13 is a view showing a state in which a suspension guide lower portion is fixed on a deck of a container ship.

FIG. 14 is a side view of the container ship.

FIG. 15 is a side view of a conventional container crane.

[Explanation of symbols]

Reference Signs List 1 container crane 2 legs 2a running wheel 3 crane girder 3a girder 4 boom 5 trolley 6 rail 7 vertical wheel 8 rail 9 vertical wheel 10 saddle 11 vertical axis 12 arm 13 traversing beam 13a lower rail 13b upper rail 14 transverse frame 14a wheel 14b Guide 15 Suspension guide 15a, 15b, 15c, 15d, 15e, 5f Square steel pipe 15g Flange 16 Hydraulic cylinder 17 Rail support arm 18 Vertical axis 19 Rail support arm mounting member 20, 21 Guide rail 22 Traverse frame traversing device 22a Rotating drive device 22b Chain wheel 22c Chain 22d, 22e Connecting member 23 Vertical axis 24 Auxiliary frame 25 Horizontal axis 26 Bracket 27 Hydraulic cylinder 28, 28a Pin 29, 30 Hydraulic cylinder 29a, 30a Pin 31 Saddle running device 32 Suspension guide telescopic device 33 Wire rope 34 Chain wheel 34a Chain 35 Rope winding drum with chain wheel 35a Sheave 36, 36A, 36B Scaffolding device for work 37 Suspension guide fixing device 37a, 37b Rope winding drum 38 Suspension guide support member 39 Sheave 40 Rope 41 Guide 42 Hook for rope locking 43 Spreader 44 Wire rope 45, 46 Sheave 47 Container 48 Container ship 48a Deck 48b Bridge 49 Wharf 50 Rail 51 Worker

Claims (4)

[Claims] 1. A container guide device for a container crane having a trolley that moves on a crane girder, wherein the container is lifted and lowered by a spreader hung on the trolley and loaded and unloaded on a container ship,
A pair of saddles movably facing each other on the crane girder, a pair of traversing beams suspended below the saddle in a direction perpendicular to the moving direction of the saddle, and an upper end pivotally supported by the saddle; Are extended between the traversing beams and four substantially C-shaped arms pivotally attached to both ends of the traversing beam, and traverse the traversing beam while maintaining a symmetric position with respect to the center of the traversing beam. A pair of traversing frames, and a telescopic suspension guide which is attached from the traversing frame and is attached to the container at four corners when ascending and descending the container, and traverses the traversing frame according to the length of the container. Move the arm so that the traversing frame can traverse to the horizontal portion at the lower end of the arm, and turn the arm approximately 90 ° to avoid interference with the bridge of the container ship. Container guide device of a container crane, characterized by being configured so as to capable of performing shipping stowage of Na. 2. The container guide device for a container crane according to claim 1, wherein the suspension guide comprises a plurality of nested rectangular steel pipes having different sizes and guide rails extending from the rectangular steel pipes. 3. The traversing frame is provided with an auxiliary traversing frame that can be tilted on a lower surface, and a suspension guide is attached to the auxiliary traversing frame so that the angle of the suspension guide can be adjusted to adapt to the hull inclination. 3. The container guide device for a container crane according to claim 1 or 2. 4. The container guide device of a container crane according to claim 1, wherein a work scaffolding device is provided on the suspension guide.