JPS6038318B2 - Quay cargo handling crane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a quayside cargo handling crane, which is particularly capable of simultaneously handling a plurality of containers from a container ship onto multiple ground lanes of the ship or onto a stevedore running on the lanes. The present invention relates to a quay crane constructed in the following manner.

Container ships and container yards, which can speed up and simplify cargo handling operations, have been developed and put into practice as revolutionary systems for marine transportation by ships.

Even if such a container system is implemented, there will be a demand for faster cargo handling, and quay cranes have been introduced that can suspend multiple containers at the same time instead of suspending them one by one using quay cranes. is proposed. For example, Tokko No. 47-401y, Jikko No. 49-
This is the quay cargo handling crane described in Publication No. 14828. However, these known cranes are configured so that they can simultaneously load and unload containers that are adjacent to each other along the longitudinal direction of a container ship. That is, as shown in FIG. 1, containers 2 stacked up, down, left, and right at regular intervals on the belly of a container ship 1 are stacked vertically and horizontally on the side of a container ship 1 by two hanging devices 3 and 4 that are hung adjacent to each other along the longitudinal direction of the container ship. Containers 2 adjacent to the container ship 1 in the longitudinal direction are suspended and unloaded. However, if such a structure is adopted, it is not so much if you are just trying to unload two 4-inch 20-foot containers at the same time.
In order to be able to simultaneously handle two 20-foot containers or three or more 20-foot containers, it is necessary to widen the gap L between the legs of the quay crane along the quay wall. However, it has disadvantages in that it is economically disadvantageous and difficult to put into practical use.

Furthermore, if a quayside crane with such a structure is used for cargo handling, a plurality of containers loaded and unloaded at the same time must be unloaded on the same lane, which poses the problem of complicating container handling on the ground.

'An object of the present invention is to provide a quayside cargo handling crane that is capable of handling a plurality of containers without increasing the size of the quayside cargo handling crane and is configured to facilitate container handling on the ground. According to the present invention, the above object is to provide a trolley having a mechanism that adjusts the distance between the hanging tools along the crane gutter and boom to the ground lane spacing or onboard container spacing, and also to suspend the hanging tools suspended from the trolley. This is achieved by providing a hanging device connection mechanism that can adjust the odor interval and configuring the two hanging devices to be positioned on the ground or on a ship while maintaining a relationship with each other.

Hereinafter, details of the present invention will be explained in conjunction with embodiments shown in the drawings.

FIG. 2 and subsequent figures illustrate one embodiment of the present invention, in which the same parts as in FIG. 1 are designated by the same reference numerals.

In the figure, the crane designated as a whole by reference numeral 5 is a quay cargo handling crane that is equipped with legs 8 configured to be able to run on rails 7 laid along the quay 6, and a girder 9 supported by the legs 8. A driving machine room 10 is provided on the girder 9.

A boom 11 is rotatably supported on the sea side of the girder 9 so as to be able to rise and fall upward. In addition, on the quay 6, there is a straddle carrier with a lane W, a lane A on which an axle for transporting containers such as a trailer or a rail car runs,
B... has been installed.

On the other hand, a traversing rail on which the trolley 12 can traverse is installed on the girder 9 and the boom 11, and the trolley 12 moves on this traversing rail. Do it inside. In the case of this embodiment, the trolley 2 has two hanging tools 14x and 14Y arranged along the extending direction of the boom 11. - Note that the center spacing w of the containers on the ship in the width direction is currently smaller than the lane spacing W described above. Now, the trolley 2 and the hanging tools 14X, 14Y, which constitute the essential parts of the present invention, are shown in FIGS. 3 and below.

From FIG. 3 onward, parts not directly related to the present invention, such as the driver's cab and trolley traverse mechanism, are omitted for clarity. Here, among the containers 2 arranged on the ship with an interval w in the width direction, the container that can be lifted by the lifting device 14× is 2×, and the container that can be lifted by the lifting device 14Y is 2Y, and each has a different hoisting system. It is assumed that the winding is carried out by the × system, the Y system, etc.

In addition, what is shown by the code|symbol 14 is a well-known hanging device provided in the corner part of hanging tools 14x and 14Y. On the other hand, trolley 1
As is clear from FIGS. 2 and 3, 2 is an appropriate number of trolleys lined up in the extending direction of the boom 11, that is, the main trolley 2.
A and the auxiliary trolleys 12B and 12B2 located on both sides thereof, the rope pulley 15x provided on the hanging tool 14X is suspended from the pulley 15X of the auxiliary trolley 12B, and the pulley 16x is suspended from the pulley 16X of the main trolley 12A via a rope. The pulley 16y of the hanging tool 14Y is connected to the main trolley 12.
A pulley 16Y, and pulley 17y are auxiliary trolley 1.
It is suspended from the pulley 17Y of 2B2 via a rope.

In addition, the state shown by the solid line in FIG. 3 is the state where the interval between the containers is w, and the state shown by the chain line is the state where the interval is widened to W. Each trolley mentioned above is a transverse rail 1
9 via wheels 18.

By the way, the main trolley 12A and the auxiliary trolleys 128, 12B
A spacing adjustment device for adjusting the spacing between each trolley is attached on top of the trolley.

Now, of the interval adjusting devices, the X system will be explained as follows.

That is, a drive source 24x (FIG. 4) such as a motor provided on the main trolley 12A rotates a screw 22x provided on the reducer 22x via the reducers 22x and 23x. A structure is adopted in which the screw shaft 20×, which is screwed into the female screw 22×, is moved back and forth. The screw shaft 20X has one end attached to the auxiliary trolley 12B and a support 21X mounted thereon. Therefore, when the female screw 22x is rotated, the screw shaft 20x is moved back and forth, and the distance between the auxiliary trolleys 12B and the main trolley 12A can be adjusted. Although only the x system has been described above, the Y system is constructed in exactly the same way, and the same parts are indicated by the same reference numerals, and the subscript is simply indicated by Y.

In addition, in FIG. 4, 25X and 25Y indicate brakes. An example of how the trolley and hanging device configured as above are wired with the hoisting drive device is shown in the fifth example.
In the figure, only one of the X and Y systems is shown.

In the same figure, the symbol T indicates a pulley attached to a trolley, the symbol S indicates a pulley attached to a lifting device, B indicates a pulley attached to the end of a boom, B2 indicates a pulley attached to an end of a girder, and 26 indicates a hoisting drum. , is normally provided within the drive machine room 10 described above. By the way, in the above-mentioned mechanism, the two hanging containers may swing freely in the transverse direction due to reasons such as the adjustment of the trolley.

In preparation for such a case and to further improve work efficiency, the above-mentioned odor hanging connection mechanism is useful.

What is shown in FIG. 6 and subsequent figures shows an example of a connection mechanism of the hanging tool, which plays an important role in addition to the above-mentioned interval adjustment.
That is, the main trolley 12A is constructed in two stages as shown in FIG.
A connecting part winding mechanism for operating the connecting part, which will be described later, is attached to the top. That is, as shown in FIG. 7, a pair of drums 29 are mounted on the support frame 12A, and the drums 29 are rotated by a motor 27 as a drive source via a reducer 28. The wire 30 is connected via a pulley 31 to a bracket 33 of a connector 32 (FIG. 6) located further below the support frame 12A. What is indicated by the reference numeral 34 is a brake.
The required torque of the motor 27, which is the hoisting drive source, is the rope 30.
The brake should be at least enough to take up the slack, but the brake
requires a brake torque sufficient to maintain the connection odor 32. The motor 27 is usually the hoisting drum 26 mentioned above.
It is operated in conjunction with the drive source No. 6. On the other hand, projections 35x and 35y are provided at both ends of the connecting tool 32, and these projections are connected to sockets 36x provided on the hanging tools 14x and 14Y.
, 36y. Socket 36x
, 36y are hanging odor 14x, 14Y as shown in Figure 8 and below.
It is moved by a moving device provided across the top.
That is, this moving device uses drive sources 37x, 37y such as motors.
Drive sprockets 39x, 39y are driven by speed reducers 38x, 38y, and driven sprockets 40x, 40y are arranged opposite to the driving sprockets.
It has chains 41x, 41y stretched between.

And these chains 41x, 41y have a frame 4.
The sockets 36x, 36y are attached via the frames 42x, 42y, and wheels 43 are attached to the frames 42x, 42y. Therefore, when the drive sources 37x, 37y are started, the hanging odor 14x, 14Y can approach or separate from each other via the receivers 36x, 36y. Further, in FIG. 8, symbols 44x and 44y indicate brakes. In FIG. 8, one side of the connector 32 is partially cut away to make the explanation easier to understand. Next, the operation of the embodiment configured as above will be explained.

In the present invention, the time of unloading from a container ship to the ground will be explained, and the explanation of the reverse loading time will be omitted. First, when the container ship docks, the quayside cargo handling crane 5 travels on the rails 7 to a predetermined position and stops, preparing to start work.

At this time, the spacing between the hanging tools 14x and 14Y is adjusted to the spacing w of the containers loaded on the ship. In this state, wheel 1
8 is rotated to move the trolley 12, and the trolley 12 is stopped at a predetermined position of a container loaded on a container ship. Next, the hoisting drum 26 is driven to let out the hoisting rope,
Lower the hoisting tools 14X and 14Y onto the container to be handled. Then, the container 2X,
Hanging odor 14×, 14Y with 2Y attached to each hanging tool and the hoisting drum 26 rotated in reverse to hang the container.
wind up. Next, the trolley wheels 18 are reversely rotated to move the trolley toward the quay side. During this process, drive sources 24×, 24Y of the distance adjusting device between the king and auxiliary trolleys
is activated to let out the screw shafts 20x, 20Y, and stop at a position where the interval between the containers becomes a hanging tool interval commensurate with the ground lane interval W, and is held by the brakes 25x, 25Y. on the other hand,
At the same time as the drive sources 24
x, 41y are moved, and the brakes 44x, 44y are activated to stop the vehicle at a position where the spacing between the receivers □ 36x, 36y becomes a hanging tool spacing commensurate with the ground lane spacing W.

In this state, lower the container while maintaining the distance between the hanging devices 14x and 14Y at W, lower the containers 2x and 2Y onto the ground or a trailer stopped on the ground, open the hanging device 14, and hang the container. Disconnect the tools 14x, 14Y and the containers 2x, 2Y. After that, hanger 14×, 14
Moving on to hoisting Y, while moving the boom to the sea side, adjust the main and auxiliary trolley intervals and the hoisting interval to W, and move on to the next cargo handling cycle. The above explanation is for hanging tools 14×,
Explaining the state in which 14Y move simultaneously, symmetrically,
The protrusions 35x, 35y of the connecting odor 32 are normally the sockets 36x, 3
Although the operation was carried out in a state in which the ships were joined together during the 6y, cargo handling can also be carried out in cases such as those described below.

That is, when there is a ship structure such as a partition wall in the container storage area of a container ship, and this structure is located in the center of two containers to be operated, the connecting odor 32 is blocked by the structure and cannot be lowered. .

In such a case, the protrusions 35x, 35y of the connector 32 are removed from the receivers 36x, 36y, the connector 32 is cut off, and the hanging tools 14x, 14Y are individually lowered into the ram. In this case, the coupling 32 is held by a brake 34. When the hanging tool comes out from the ship's spear, it is connected to the connecting rod 32 waiting above, and is operated integrally with the hanging tool. Furthermore, depending on the loading status of the containers on board the container ship or the convenience of container handling on land, if it is better to simply unload one container at a time rather than unloading multiple containers at the same time, use the lifting device 14×.
, 14Y, it is sufficient to separate only one of them from the connecting tool 32 and operate only that hanging tool for cargo handling.

At this time, unused hanging tools are held in a rolled up state near the trolley. In addition, in the above explanation, the hoisting drum 26 was shown as an example installed in the drive machine room 10, but the position of the hoist drum is not limited to the drive machine room.
Any suitable location is fine. Further, although an example has been shown in which the trolley is divided into a total of three parts, a main trolley and two auxiliary trolleys, it is also possible to have a structure in which the trolley is divided into two parts and a hanging tool is hung from each part. In addition, although we have shown an example in which a screw shaft is used as a spacing adjustment device between hanging odor, these mechanisms may not be provided on the trolley, but may be provided on the girder or boom, and the trolley may be configured as one unit. , some or all of the rope pulleys on the trolley may be mounted on a separate carriage movable on the trolley for horizontal movement.

Furthermore, in the above embodiment, the connecting part is suspended from the trolley as the hanging odor connecting mechanism, and a link chain is used to adjust the spacing, but the spacing between the hanging tools can be adjusted according to the movement of the trolley. Any other coupling mechanism may be used.

For example, although the continuous portion is suspended by the hoisting drum 29 on the main trolley, the hoisting drum 29 may be positioned on the girder 9. Further, in this embodiment, the connecting part moving device is provided on each hanging tool, but it may also be provided on the connecting part, and the connecting tool itself can be configured as a telescopic beam to adjust the hanging distance. Also good.

In addition, various structures can be adopted without departing from the spirit of the present invention.

As is clear from the above description, according to the present invention, a plurality of containers can be simultaneously handled by a ship and a ground lane, or between cargo handling vehicles running on the lane, and cargo handling efficiency is greatly improved. .

In addition, since the positions of multiple hanging odors are normally controlled by the connected odors, each hanging rig can be raised and lowered at the same time while maintaining accurate spacing between the hanging rigs. It is convenient for accurately positioning and unloading containers suspended from a hoisting device or from a hoisting device, and greatly improves work efficiency when handling multiple containers. It is also possible to prevent inconveniences such as containers colliding with each other and being damaged when being moved along a girder or raised or lowered. Furthermore, since the structure is configured to simultaneously handle multiple containers adjacent to each other in the width direction of the container ship (i.e., the direction in which the boom extends), the distance between the pillars in the traveling direction of the quay crane is increased. There is also an excellent economical effect in that it can be configured without requiring much modification to the size of conventional cranes.

[Brief explanation of drawings]

Fig. 1 is a front view illustrating a subordinate crane, Fig. 2 and the following are illustrative of an embodiment of the present invention, Fig. 2 is an overall side view, Fig. 3 is a side view of main parts, Figure 4 is a plan view, Figure 5
The figure is an explanatory diagram of the wiring, Figure 6 is a cross-sectional view taken along the line W-W in Figure 4, Figure 7 is a cross-sectional view taken along the blood-wind line in Figure 6, and Figure 8 is a cross-sectional view taken along the wind-field line in Figure 6. 9 is a plan view of the socket moving mechanism portion, FIG. 10 is a sectional view taken along the line X--X of FIG. 9, and FIG. 11 is a sectional view taken along the line of FIG. 9. 9...Garda, 11...Hoom, 12, 12A, 12B
,,12 stars...Trolley, 14x, 14Y...Hanging tool, 26...Hoisting drum, 30...Wire rope,
32...Connection odor, 35x, 35y...
Projection, 26x, 36y...Socket. Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 5 Figure 9 Figure 10 Figure 11 Figure 6 Figure 8

Claims (1)

[Scope of Claims] 1. A leg that can run along a quay, a girder fixed to the leg and extending in a direction substantially perpendicular to the traveling direction of the leg, and an end of the girder located on the side of a berthed container ship. a boom that is attached to the container ship and projects toward the side of the container ship as if it were an extension of the girder; a trolley that runs along the boom and the girder; and a container hoist that is movably suspended from the trolley; The quayside cargo handling crane performs cargo handling between the container ship and the quay, and the trolley is arranged in the direction of extension of the boom so that a plurality of containers can be simultaneously suspended along the direction of extension of the boom. an appropriate number of trolleys are arranged along the boom, a plurality of the hanging tools are arranged along the extending direction of the boom, and a spacing adjustment device that interconnects the appropriate number of trolleys and adjusts the spacing between the trolleys; , a hanging device connecting mechanism that has a moving device that adjusts the distance between adjacent hanging devices, connects the plurality of hanging devices to each other, and maintains the distance between the adjacent hanging devices at a predetermined value; A hoisting drum that extends a wire rope from the hoisting devices to the trolley so that the spacing between the hoisting devices is set by adjusting the spacing between the trolleys, and also winds the wire rope to raise and lower the hoisting device. A quay cargo handling crane characterized by being equipped with a hoisting device equipped with. 2. The hanging tool connection mechanism has a protrusion that fits from above into a socket provided in each of the adjacent hanging tools, and the fitting between the sockets and the projections connects the adjacent connecting tool and the receiver. A moving device that adjusts the distance between adjacent hanging devices by moving the opening on the hanging device, and a moving device that suspends the connecting device from a trolley via a wire rope and winds the wire rope. 2. The quayside cargo handling crane according to claim 1, further comprising a connecting portion hoisting mechanism for raising and lowering said connecting device.