KR20110079431A - Mobile harbor with container crane - Google Patents

Abstract

PURPOSE: A mobile harbor with a container crane is provided to efficiently and stably carry, load, and unload freights of a supersized ship on the sea. CONSTITUTION: A mobile harbor with a container crane comprises a container crane(100), a rail(190), and a floating body(200). The container crane comprises a spreader(110), a trolley(120), a boom(130), legs(140), portal beams(150), and sill beams(160). The spreader grips a container. The trolley is horizontally moved. The boom guides the movement of the trolley. The legs support the boom and multiple girders. The portal beams connect the legs. The sill beams are connected to the bottom ends of the legs and have driving units(170). The rail is in contact with the driving unit of the container crane and is formed on the floating body in a longitudinal direction.

Description

Mobile harbor with container crane

The present invention relates to a mobile harbor that is installed so that the container crane moves along the rail to perform the unloading operation at sea.

Maritime transportation using ships as a means of moving goods remotely takes up a large part of international trade because it uses less energy and lowers transportation costs compared to other means of transportation.

In recent years, in marine transportation such as container ships, large-scale ships are used to improve the efficiency of transportation, which is intended to secure the economics of transportation by increasing the transportation volume of the vessel. Accordingly, more and more ports are required to have mooring and unloading facilities for docking large vessels.

However, harbors that can dock large container ships are limited at home and abroad, and the construction of such ports requires a lot of expenses due to dredging to maintain the necessary port depth, as well as a large place. In addition, due to the construction of a large port has a lot of influence on the surrounding environment, such as causing a traffic jam or destruction of the coastal environment, there are many restrictions on the construction of a large port.

Accordingly, the invention relates to a mobile port (mobile harbor) capable of loading and unloading cargo while anchored in a sea off the land without docking a large vessel on the inner wall of the port and a method of transferring the cargo using the patent ( Registration number 10-0895604).

Figure 1 shows a schematic view of the mobile port shown in the patent, the mobile port 10 can be carried out by the crane 20, the loading operation, Figure 1a is a mobile port 10 and a large container Unloading between lines 30, FIG. 1B shows unloading between mobile harbor 10 and pier 40.

The mobile harbor 10 includes a platform having a space in which cargo is loaded, a device for loading and unloading cargo between the ship and the platform, a positioning device for obtaining information about the position of the platform, and a cargo. It may include a buffer connecting device for maintaining the connected state without colliding with the ship during the unloading.

Container unloading work is to move cargo of several tons to tens of tons. Therefore, it is urgently necessary to secure the stability of the ship and the crane attached to it as a mobile port. It will be said that the fluctuation of the ship is indispensable. In spite of the fluctuation, there is a need for a crane having a structure capable of maintaining its function and ensuring stability while the ship is working at sea, and a mobile harbor equipped with the crane.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a mobile port capable of carrying out a container unloading operation stably and efficiently in a relationship with a container ship at sea.

The present invention provides a spreader for holding a container, a trolley supported by the spreader and moving in a lateral direction, a boom connected to a fixed girder to guide the trolley to move, and installed to be rotatable, and the boom and the girder. A container crane including a plurality of legs to support, a portal crane connecting portals between the plurality of legs, a real beam connected to a lower end of the plurality of legs, and a solid beam provided with a running part; A rail which is in contact with a portion and the container crane is transportable, and a floating body in which the rail is formed in a longitudinal direction, wherein the plurality of legs support the boom and are inclined in a vertical direction to apply a male load. The running part may be provided with a rail departure prevention device for preventing the departure from the rail. All.

The traveling part is provided with a lifting preventing roller and a skew preventing roller which are in contact with the rail on which the container crane travels to prevent rotation or detachment of the container crane, and the seal beam is able to be in close contact with the rail by hydraulic pressure. Rail clamps may be provided that prevent the crane from slipping.

The seal beam may be provided with a running part tie-down and a running part anchor to prevent the crane from tipping over or leaving, and the trolley may be provided with a trolley tie-down and a trolley anchor to prevent the tipping-down of the trolley.

The plurality of legs includes two pairs of legs spaced apart from each other in the transverse and longitudinal directions, wherein the two pairs of legs have the longitudinal spacing between each other at the upper end less than the longitudinal spacing between each other at the lower end of the boom. And the pair of legs and the shape of the portal beam may form a trapezoid.

The upper leg further comprises at least one pair of auxiliary legs coupled to the top of the leg and the bottom is coupled to the portal beam to form a V shape, wherein the auxiliary leg is hinged to the top of the leg and the bottom is the Can be detachably coupled to the portal beam or the bottom of the leg.

The plurality of legs includes two pairs of legs spaced apart from each other in the transverse direction, one pair of legs of the two pairs extends directly downward from the end of the boom, the machine room for controlling the movement of the container crane is the second It can be arranged on the yarn beams connecting longitudinally between the legs of the pair.

Two or more container cranes may be provided at longitudinal intervals.

Two or more rails may be formed in the longitudinal direction at both ends in the transverse direction of the floating body.

Mobile harbor equipped with a container crane according to the present invention, by securing the stability through a variety of devices in consideration of the shaking in the sea, can efficiently and reliably handle the cargo transportation of large vessels requiring deep water depth in the future port system competitiveness Will contribute to strengthening.

1 is a view showing a schematic view of the mobile port shown in the prior patent, Figure 1a shows the state of unloading at sea, Figure 1b shows the state of unloading on land.
Figure 2 is a schematic view showing the structure of a conventional general land crane, Figure 2a is a side view, Figure 2b is a front view.
3 is a view showing the structure of a drive system used in a conventional general land crane.
Figure 4 is a view showing the structure of a container crane according to an embodiment of the present invention, Figure 4a is a side view, Figure 4b is a front view.
5 is a view showing the structure of a drive system according to an embodiment of the invention, Figure 5a shows the arrangement of the hoisting device, Figure 5b shows the position of the traverse device and the energy chain.
Figure 6 is a view showing a rail departure prevention apparatus according to an embodiment of the present invention, Figure 6a and Figure 6b shows a rise prevention roller and a skew prevention roller, respectively.
Figure 7 is a view showing a crane safety device according to an embodiment of the present invention, Figure 7a is a side view of the running portion of the crane, Figure 7b is a front view of the crane tie down, Figure 7c is a front view of the crane anchor.
8 is a view showing a schematic shape of a mobile harbor equipped with a container crane according to an embodiment of the present invention, Figures 8a and 8b shows when the boom is lowered and raised, respectively.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that detailed descriptions of related well-known technologies or functions may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

DETAILED DESCRIPTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components will be given the same reference numerals and redundant description thereof will be omitted. do.

Referring to FIG. 4, a container crane 100 according to an embodiment of the present invention includes a spreader 110 holding a container, a trolley 120 supported by the spreader 110 and moving in a lateral direction, and a trolley. The boom 130 is guided to move and is connected to the fixed girder 130a so as to be rotatable, a plurality of legs 140 supporting the boom 130, and a plurality of legs 140. It may include a portal beam (150) for connecting the mutual beam (Sill Beam) 160 is provided with a running unit 170 that is connected to the lower end of the plurality of legs 140, and moves in the longitudinal direction have. Here, the lateral direction means the longitudinal direction of the boom 130 and the girder 130a, the longitudinal direction means a direction perpendicular to the ground.

The container crane 100 is a crane installed on a ship or a mobile port operating a short distance or a long distance, and can have the following differentiated characteristics in consideration of the influence of the load generated according to the sea conditions such as wind or waves during operation and operation. have.

Leg 140, which is one of the main members of the crane, may be configured as a plurality of main structures to support and bear the load and moment of the crane superstructure, in one embodiment of the present invention to four legs 140 The configured container crane 100 is illustrated.

According to FIG. 4B, the plurality of legs 140 support the boom 130 but are disposed to be inclined in the vertical direction, so that the load in the horizontal direction due to the shaking of the ship may be supported by the legs 140. The plurality of legs 140 may have a trapezoidal shape in which the shapes of the boom 130, the plurality of legs 140, and the portal beam 150 are smaller than the distance between each other at the upper end thereof. The plurality of legs 140 may be composed of two pairs of legs 140 spaced apart from each other in the transverse and longitudinal directions. The two pairs of legs 140 have a longitudinal spacing between each other at the upper end smaller than the longitudinal spacing between each other at the lower end thereof so that the shape of the boom 130 and the two pairs of legs 140 and the portal beam 150 are trapezoidal. Can be formed.

In the conventional land container crane 1, as shown in FIG. 2B, the acting forces are the driving inertia force and the wind load, so that the legs against the boom 30, the girder 30a, the portal beam 50, and the solid beam 60 are applied. 40 is disposed vertically. In contrast, cranes used in mobile harbors require structures to withstand the horizontal forces added by the hull motion in addition to the driving inertia and wind loads.

Referring back to Figure 4b, the container crane 100 according to an embodiment of the present invention, the legs 140 to be inclined rather than perpendicular to the boom 130 or the ground to withstand the horizontal force of the crane added by the hull motion Can be placed. By having such a structure, the rigidity of the crane in the horizontal direction is increased efficiently without increasing the cross section, thickness, or weight of the crane member such as the leg 140. Since the structural section or member thickness of the leg 140 is not increased, the weight of the crane is not increased, thereby making it possible to determine the specifications such as ship stability and line width, thereby restraining the rise of ship and crane manufacturing costs, which is advantageous in terms of economy. Do.

Container crane 100 according to an embodiment of the present invention can reinforce the horizontal force by the installation of internal fastening (Internal Fastening) between the legs (140).

Referring to FIG. 4B, the container crane 100 includes at least one pair of auxiliary legs having an upper end 145a coupled to an upper end of the leg 140 and a lower end 145b coupled to the portal beam 150 to form a V shape. 145 may be further included. As such, the auxiliary legs 145 may be used to restrain the legs 140 and the legs 140 and the legs 140 and the portal beam 150 to withstand the horizontal force acting on the legs 140. Therefore, it exhibits the effect of increasing the rigidity in the horizontal direction of the crane without increasing the cross section and the weight of the structure such as the legs 140 and the portal beam 150, thereby overcoming the vertical and horizontal loads due to the hull motion generated at the sea of the ship and stable. The unloading operation can be carried out.

Here, the auxiliary leg 145 is disposed between the two legs 140, but by adjusting the position of the auxiliary leg 145 according to the situation so that collision interference during the loading and unloading operation of the container (C) does not occur. The auxiliary leg 145 may be coupled to the upper end 145a is hinged to the upper end of the leg 140 and the lower end 145b is detachably coupled to the portal beam 150 or the lower end of the leg 140. The auxiliary leg 145 may be used as a structure for coupling the middle of the leg 140 and the portal beam 150 during the navigation and movement of the ship using a hinge pin (Hinge Pin) function. When the vessel is anchored and the container C is unloaded, the hinge pin of the lower end 145b is dismantled and then bound to the lower end of the leg 140 or both ends of the portal beam 150 to move the container C. It is possible to prevent interference in the path.

One embodiment of the present invention can increase the stability of the crane by lowering the center of gravity of the crane.

Referring to FIG. 2A, a conventional general crane has a back reach, and the girder 30a further protrudes from the leg 40 to extend the container to a certain distance on land, and extends to the rear side of the crane (land side). It is.

Container crane 100 according to an embodiment of the present invention, unlike the conventional crane, as shown in Figure 4a, includes two pairs of legs 140 are spaced apart from each other in the lateral direction, boom of the two pairs The pair of legs 140 far from 130 may extend directly downward from the end of the girder 130a. The center of gravity of the crane can be lowered by deleting the protrusion of the girder 130a for securing the back reach in the ship width direction. It also eliminates disasters such as collision damage when sailing ships and docking docks.

The machine room 180 for controlling the movement of the container crane 100 may be disposed on the chamber beam 160 for longitudinally connecting the two pairs of legs 140. A boom hoist 135 for raising and lowering the boom 130 may be disposed on the real beam 160.

In general, the machine room has a considerable amount of weight by arranging the mechanisms (motors, reducers, drums, brakes and other accessories) necessary for the lifting and unloading of containers, traversing trolleys and rotating the boom, which are the main functions of container cranes. Will go out. Referring to FIG. 2A, a conventional container crane 1 is configured such that a machine room 80 is located in a girder 30a at the top of a crane.

In one embodiment of the present invention, the center of gravity of the crane is lowered by arranging the installation position of the machine room 180 on the lower side beam beam 160 rather than the girders 130a side of the crane so as to lower the center of gravity of the crane. For example, as shown in FIG. 5A, the boom hoist 135 for raising and lowering the boom 130 may be disposed on the thread beam 160 to lower the center of gravity of the crane.

3 is a view of a conventional container crane installed on a land pier, and a wire of a trolley traverse device 25 and a boom hoist device 35 for moving the main hoist device 15 and the trolley 20 to the spreader 10. The rope living system is shown. If the system is applied to a crane in a mobile harbor as it is, it may cause rope damage due to interference wear between the ropes due to the hull movement and the rope derailment in the pulley.

As shown in FIG. 5A, unlike the conventional crane, the container crane 100 according to the exemplary embodiment of the present invention has a trolley transverse device 125 for transferring the trolley 120 in a transverse direction. It can be provided by itself. By using this self propeller method, the machine room 180 does not use a transverse rope. In addition, the main hoist device 115 that controls the rise and fall of the spreader 110 is also mounted on the trolley 120 and independently disposed so that the rope may not need to be arranged on the boom 130 side. By separating and placing the trolley traverse device and the boom hoisting device, it is possible to prevent interference between the ropes and pulleys, wear, and pulley departure of the ropes despite the shaking of the ship.

As shown in FIG. 5B, the energy chain 130b may be connected to the trolley 120 as a power supply device for operating the trolley traversing device 125, the main hoisting device 115, and the like. The trolley may be powered by the energy chain 130b and move along the boom 130. In spite of the shaking and strong wind caused by the ship's maritime operation, the damage caused by the interference wear collision is not generated.

The container crane 100 according to the exemplary embodiment of the present invention may be provided with various rail departure preventing apparatuses so as not to be separated from the rail 190 in the driving unit 170.

Referring to FIG. 6A, the traveling unit 170 may be provided with a lifting preventing roller 172 that contacts the rotatable rail 190 on which the container crane 100 travels and prevents the crane from overturning or detaching. In addition, referring to FIG. 6B, the running unit 170 may be provided with a skew preventing roller 174 that contacts the rotatable rail 190 on which the container crane 100 travels and prevents the crane from tipping over or leaving. Furthermore, referring to FIG. 6C, the seal beam 160 may be provided with a rail clamp 166 that may be in close contact with the rail 190 by hydraulic pressure to prevent the container crane 100 from slipping.

Through such various rail departure prevention device to prevent the fall of the crane and to minimize the movement of the crane can improve the loading efficiency.

Container crane 100 according to an embodiment of the present invention is provided with another safety device to securely bind the ship and the crane when the crane is stored so that the crane and its accessories do not leave the track or fall in the event of a typhoon or severe blue. .

7A and 7B, the yarn beam 160 is provided with a crane tie down 162 for preventing the crane from tipping over or leaving. Crane tie-down 162 is to bind the vessel and the crane as a turnbuckle (Turnbuckle) type beam on the side of the seal beam 160 to prevent the crane fall.

7A and 7B, the seal beam 160 is provided with a crane anchor 164 for preventing the crane from tipping over or leaving. The anchor 164 is installed in the anchor base structure on the side of the beam beam 160 in order to prevent the circumference in the crane running direction and inserted into the pocket formed on the top of the ship deck so that movement does not occur in the crane running direction.

When the mobile harbor loads the container, the container crane for mobile harbor is fixed on the ship by the tie-down 162 and the anchor 164 when operating from the pier to the mother ship or from the pier to the pier.

Furthermore, although not shown in the drawings, similar to the crane tie-down or crane anchor, the binding force between the boom 130 and the trolley 120 does not push the trolley 120 in the driving direction or ascend in the vertical direction during the operation and typhoon of the ship. Trolley tie-downs and trolley anchors can be installed to improve this.

Referring to Figure 8, the container crane 100 according to an embodiment of the present invention may be installed in a mobile port. Two or more container cranes may be provided at longitudinal intervals.

The moving port may include a rail 190 which is in contact with the traveling part 170 of the container crane and the container crane 100 is transportable, and a float 200 in which the rail 190 is formed in the longitudinal direction. Rails 190 may be formed in two or more in the longitudinal direction in each of the transverse direction of the floating body 200 in the longitudinal direction.

The mobile harbor according to an embodiment of the present invention may be provided with a propulsion device such as a thruster to move from the pier to the sea and perform the unloading operation in relation to the container ship at sea, and then move back to the pier of the land. The mobile port may be floating on the sea and may serve to transfer the container C and temporarily load the container C between the container ship instead of the land port or the land port. This allows container ships to unload quickly without having to stay or wait onshore ports.

The mobile harbor equipped with a container crane according to the present invention can efficiently and reliably handle the cargo transportation of a very large ship requiring deep water depth, thus contributing to the enhancement of future port system competitiveness.

As mentioned above, although specific embodiment of this invention was described, this is only an illustration and this invention is not limited to this, It should be interpreted that it has the broadest range based on the basic idea disclosed in this specification. Those skilled in the art can change the material, size, etc. of each component according to the application field, it is possible to implement a pattern of the shape not shown by combining or replacing the disclosed embodiments, but this is also not departing from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, it is apparent that such changes or modifications are included in the scope of the present invention.

100: container crane 110: spreader
115: main hoist 120: trolley
125: trolley traverse 130: boom
130a: girder
135: boom hoist 140: leg
145: auxiliary leg 150: portal beam
160: Sylvimb 162: crane tie down
164: crane anchor 166: rail clamp
170: running part 172: lifting prevention roller
174: skew prevention roller 180: machine room
190: Rail 200: Float

Claims (8)

A spreader for holding a container, a trolley in which the spreader is supported and moving in a lateral direction, a boom connected to a fixed girder and guided to move the trolley and rotatably installed, and a plurality of supporting booms and girders A container crane including a leg and a portal beam connecting the plurality of legs to each other, a container crane including a real beam connected to a lower end of the plurality of legs and provided with a running part;
A rail in contact with a traveling part of the container crane and capable of being transported by the container crane,
The rail includes a float formed in the longitudinal direction,
The plurality of legs support the boom but are inclined in a vertical direction to apply a male load.
The moving port is provided with a rail departure prevention device for preventing the departure from the rail.
The method of claim 1,
The traveling part is provided with a lifting preventing roller and a skew preventing roller which are in contact with the rail on which the container crane travels so as to be rotatable to prevent the container crane from tipping over or leaving.
The seal beam is provided with a rail clamp which can be in close contact with the rail by hydraulic pressure to prevent the sliding of the container crane.
The method of claim 1,
The seal beam is provided with a running part tie-down and a running part anchor to prevent the crane from tipping over or leaving the vehicle.
The trolley is provided with a trolley tie-down and a trolley anchor to prevent the trolley from tipping over or leaving.
The method of claim 1,
The plurality of legs includes two pairs of legs spaced apart from each other in the transverse and longitudinal directions,
And the two pairs of legs have a longitudinal spacing between each other at an upper end thereof smaller than a longitudinal spacing between each other at a lower end thereof so that the shape of the boom, the two pairs of legs and the portal beam form a trapezoid.
The method of claim 1,
Further comprising at least one pair of auxiliary legs having an upper end coupled to an upper end of the leg and a lower end coupled to the portal beam to form a V shape,
The auxiliary leg is a mobile port that can be coupled to the upper end is hinged to the upper end of the leg and the lower end is detachable to the portal beam or the lower end of the leg.
The method according to any one of claims 1 to 5,
The plurality of legs includes two pairs of legs spaced apart from each other in the transverse direction, one pair of legs of the two pairs extend directly downward from the end of the boom,
And a machine room for controlling movement of the container crane is disposed on the yarn beam connecting the two pairs of legs in the longitudinal direction.
The method according to any one of claims 1 to 5,
The container crane is provided with at least two mobile harbor at longitudinal intervals.
The method according to any one of claims 1 to 5,
Two or more rails are formed in the longitudinal direction at both ends of the transverse in the longitudinal direction, respectively.

Images