KR101112126B1 - Rolling isolated crane and vessel with the crane - Google Patents

Abstract

The present invention relates to a crane capable of maintaining an equilibrium regardless of fluctuations of the floating body by blocking rolling, and a floating body capable of unloading cargo at sea away from the land. The present invention, the upper body including a horizontal boom is installed so that the trolley is transportable in the transverse direction, the lower body is installed so that the upper body is movable in the transverse direction, connected between the upper body and the lower body It is provided so as to provide a crane including an actuator for adjusting the relative movement between the upper body and the lower body, and a control unit for controlling the operation of the actuator.

Mobile Harbor, Mobile Harbor, Nautical Cranes, Rolling

Description

ROLLING ISOLATED CRANE AND VESSEL WITH THE CRANE}

The present invention relates to a crane, and more particularly to a crane that can maintain the equilibrium regardless of the fluctuation of the floating body by blocking rolling, and a floating body capable of unloading cargo at sea off the land by mounting it. .

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 berth 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 without anchoring a large vessel to the inner wall of the port and anchored at sea off the land, and a method for transferring the cargo using the patent ( Registration number 10-0895604).

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 1 (a) is a mobile port (10) And the unloading between the large container ship 30, and FIG. 1 (b) shows the unloading between the mobile harbor 10 and the pier 40. FIG.

The mobile port 10 includes a platform having a space for loading cargo to be loaded or unloaded, a facility for loading and unloading cargo between the vessel and the platform, and a transport facility for transferring cargo on the platform. A cargo transfer device, a positioning device for acquiring information regarding the position of the platform, a buffer connecting device such that the platform remains connected without colliding with the ship during loading and unloading of the cargo, and the like. do.

Loading and unloading cargo is a task to move cargo from several tons to tens of tons, so it is urgently required to maintain the equilibrium of the ship or floating body and the crane mounted as a mobile port, but at sea, wind, blue, or tide The fluctuation of the ship is indispensable due to the influence of the ship. In spite of this fluctuation, a crane having a structure capable of maintaining equilibrium while the ship is working at sea is required.

The present invention has been made in consideration of the above problems, the present invention is to control the position of the mounted trolley despite the rolling of the floating body to enable a stable cargo unloading with other vessels and a floating body equipped with the same It aims to provide.

The present invention, the upper body including a horizontal boom is installed so that the trolley is transportable in the transverse direction, the lower body is installed so that the upper body is movable in the transverse direction, connected between the upper body and the lower body It is provided so as to provide a crane including an actuator for adjusting the relative movement between the upper body and the lower body, and a control unit for controlling the operation of the actuator.

A rail is fixedly installed on the lower body, and a roller is fixedly installed on the upper body, and the roller is provided on the rail to move along the rail. Here, the rail may be formed in an arch shape. Alternatively, the rail may be formed in an arc shape with respect to the rolling center of the lower body.

The controller controls the movement of the upper body in response to the shaking of the lower body. Further, the controller may control to maintain the horizontal state of the horizontal boom in response to the rolling of the lower body.

A stopper or a brake may be installed to prevent the roller from moving beyond a certain range. The lower body may include one or more first and second pillars installed at a lateral interval, and the rail may be supported and installed by the first pillar and the second pillar.

The rail includes first and second rails installed on the first and second pillars, respectively, and the upper body includes first and second vertical beams, which are respectively upright from the first and second pillars. The roller may be attached to lower ends of the first and second vertical beams and provided to the first and second rails.

The present invention provides a ship or a marine float with the crane described above. The controller controls the movement of the upper body in response to the shaking of the lower body. Further, the controller may control to maintain the horizontal state of the horizontal boom in response to the rolling of the lower body. The lower body may include first and second pillars which are installed at both ends of the marine structure in a transverse direction and are movable in the longitudinal direction.

According to the crane according to the present invention can be carried out unloading operation while maintaining the horizontal state of the upper body in response to the swing of the lower body. Furthermore, according to the floating body equipped with a crane according to the present invention, the crane is maintained in equilibrium in response to a motion such as rolling of the floating body so that stable cargo unloading with other ships is possible.

Furthermore, according to the crane according to the present invention, by minimizing the loss of power due to friction through the movement between the rail and the roller, it is possible to precisely control the horizontal boom equilibrium without applying a large force to the hydraulic cylinder constituting the actuator. Can be.

Therefore, the floating body according to the present invention can efficiently handle the cargo transportation of the large vessels requiring deep water depth and can function as a mobile port, which will contribute to strengthening the future port system competitiveness.

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.

Figure 2 is a perspective view showing the structure of a rolling block crane according to an embodiment of the present invention. 3 is a side view showing the main part of a rolling block crane according to an embodiment of the present invention. The coordinates are defined as the longitudinal direction in the x direction, the transverse direction in the y direction, and the vertical direction in the z direction.

Crane 100 according to an embodiment of the present invention, the upper body, the lower body is installed so that the upper body is movable in the transverse direction, the upper body and the lower body is installed to be connected to each other between the upper body and the lower body Actuator 160 for adjusting the relative movement between, and a control unit for controlling the operation of the actuator 160.

The lower body includes one or more first and second pillars 111 and 112 installed at intervals in the horizontal direction, and the first pillar 111 and the second pillar 122 are each formed in plural so that the top thereof is horizontally lowered. It is formed in a structure that is connected to each other through the beam 120 and the like. The rail is supported by the lower body and can be installed. Specifically, the rail includes first and second rails 123 and 124 installed on the first and second pillars 111 and 112, respectively. The rails 123 and 124 may be formed in an arch shape. Alternatively, it may be formed in an arc shape (dotted dashed line in FIG. 6) with respect to the rolling center (M in FIG. 6) of the lower body.

The upper body may include first and second vertical beams 141 and 142 that stand upright on the first and second pillars 111 and 112, respectively. The first and second vertical beams 141 and 142 are supported by the upper horizontal beams 151 and 152, respectively. The roller is fixed to the upper body and is movable along the rail. In detail, the first and second rollers 153 and 154 are attached to the upper horizontal beams 153 and 154 extending from the lower ends of the vertical beams 141 and 142, so as to be disposed on the first and second rails 123 and 124. May be provided. A stopper (not shown) or a brake (not shown) may be installed on the rails 123 and 124 to prevent the rollers 153 and 154 from moving beyond a certain range.

The upper body includes a horizontal boom 130 in which the trolley 138 is installed to be transported in the transverse direction. The first and second upper horizontal beams 151 and 152 are positioned above the horizontal boom 130, and the trolley 138 is installed at the lower portion of the horizontal boom 130 to be freely transported along the horizontal boom 130. do.

The actuator 160 may be installed at both ends of the lower horizontal beam 120 on the lower body side, and may be connected to the upper horizontal beams 151 and 152 on the upper body side. Actuator 160 is formed in a structure including a hydraulic cylinder, it may be installed so that its longitudinal direction coincides with the longitudinal direction of the rails (123, 124). The actuator 160 adjusts relative movement between the upper body and the lower body while extending or contracting in the longitudinal direction.

The controller (not shown) controls the movement of the upper body in response to the swing of the lower body. Furthermore, the controller may control the horizontal state of the horizontal boom 130 to be maintained in response to the rolling of the lower body.

4 is a side view showing the main part of a rolling block crane according to another embodiment of the present invention.

According to another embodiment of the present invention, in the embodiment of FIG. 3, the actuator 160 is differently provided between the first vertical beams 141 and the second vertical beams 142 to control operation. Other components not described herein may be implemented with a structure and a function similar to those of the embodiment shown in FIG. 2. In addition, the crane according to the present invention may be implemented in various structures, for example, the vertical beam may not be provided on the first and second pillar sides, respectively, but may be provided only on one pillar side or the first and second pillars. It may be provided between. Similarly, the rails can be provided without separation, and furthermore, the rollers and actuators do not have to be provided on both sides. Furthermore, in contrast to the embodiment of the present invention, the roller is provided on the lower body and the rail is provided on the upper body.

Hereinafter, a method of operating a rolling blocking crane and a floating body according to an embodiment of the present invention will be described in detail. 5 is a view showing a floating body according to an embodiment of the present invention to perform the unloading operation between the container ship. The present invention provides a floating body (250) or offshore structure having the crane (100) described above. In this case, the longitudinal direction is the longitudinal direction of the floating body 250, and the lateral direction is the lateral direction of the floating body 250.

The upper portion of the floating body 250 is provided with a platform 252 on which cargo can be loaded. The first and second pillars 111 and 122 are respectively provided on both side surfaces of the floating body 250 in the transverse direction to be movable in the longitudinal direction. Floating rails 254 are provided at both sides of the floating body 250 such that wheels (not shown) provided at lower ends of the first and second pillars 111 and 122 may move along the floating rail 254. have. The driver 256 may be implemented in various ways, such as a motor (not shown) that provides power to move the crane 100 and a wire transfer system (not shown) using ropes and winches. For added safety, the wheels can be designed to be structured as carts or sliding office desk drawers that are transported on the float rail 254 so that they can move on the float rail 254 but are not separated.

As shown, the side of the floating body 250 is provided with a crane 100 according to an embodiment of the present invention and the side of the container ship (S) docked, the crane 100 installed on the floating body container 250 It extends in the direction of the line (S) to perform the unloading operation of the container, that is, the cargo (C). Floating body 250 swings due to the influence of wind, blue, or algae. The swing may include a hebbing, rolling, or pitching, and in spite of the swing, the cargo C may be smoothly loaded by maintaining the horizontal state of the crane 100 or the absolute horizontal position of the trolley 138. For example, even if there is a rolling of the floating body 250, the control unit may detect the rolling of the floating body 250 to operate the actuator 160 to maintain the horizontal boom 130 is horizontal.

Figure 6 is a schematic diagram showing a state in which the rolling blocking crane in accordance with an embodiment of the present invention to maintain the equilibrium. The positions of the first and second pillars 111 and 112 and the first and second rails 123 and 124 in the absence of rolling are indicated by solid lines. Next, the first and second pillars 111 and 112 and the first and second rails 123 and 124 fixed when the floating body is inclined due to rolling are indicated by dotted lines. Even when the float is inclined, the first and second rollers 153 and 154 move relative to the rails 123 and 124 by the action of the actuator 160, and more precisely, move backwards by the rolled angle. Thus, the absolute positions of the first and second rollers 153 and 154 do not change. Accordingly, the horizontal boom 130 of the upper body to which the rollers 153 and 154 are fixed also maintains its absolute position without changing. As a result, the upper body and the lower body are independent of each other, and the rolling of the lower body is not transmitted to the upper body.

As described above, according to the crane 100 according to the embodiment of the present invention, a stable unloading operation is possible by controlling the horizontal state of the horizontal boom 130 and the position of the trolley 138 in response to the swing of the floating body 250. . In particular, by minimizing the loss of power due to friction through the movement between the rails 123 and 124 and the rollers 153 and 154, the horizontal boom can be precisely applied without applying great force to the hydraulic cylinder constituting the actuator 160. Control is possible to maintain the balance of 130.

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.

1 is a view showing a schematic view of a mobile port shown in the prior patent.

Figure 2 is a perspective view showing the structure of a rolling block crane according to an embodiment of the present invention.

3 is a side view showing the main part of a rolling block crane according to an embodiment of the present invention.

4 is a side view showing the main part of a rolling block crane according to another embodiment of the present invention.

5 is a view showing a state in which the floating body according to an embodiment of the present invention performs the unloading operation between the container ship.

Figure 6 is a schematic diagram showing a state in which the rolling blocking crane in accordance with an embodiment of the present invention to maintain the equilibrium.

<Description of main parts of drawing>

100: crane 111, 112: first and second pillar

120: lower horizontal beam 123, 124: first, second rail

130: horizontal boom 138: trolley

141 and 142: first and second vertical beams 151 and 152: first and second upper horizontal beams

153 and 154: first and second rollers 160: actuator

250: ship 252: platform

254: floating rail 256: drive unit

C: Cargo S: Container Ship

Claims (12)

An upper body including a horizontal boom on which the trolley is installed to be traversed transversely; A lower body installed so as to be movable upward in a transverse direction with the upper body curved upwardly; An actuator connected to each other between the upper body and the lower body to adjust a relative motion between the upper body and the lower body; A control unit for controlling the operation of the actuator, The curve is formed in an arc shape with respect to the rolling center of the lower body crane. The method of claim 1, The rail is fixed to the lower body, Rollers are fixed to the upper body, A crane provided on the rail and movable along the rail. delete delete The method according to claim 1 or 2, The controller controls the movement of the upper body in response to the swing of the lower body. The method of claim 5, The control unit controls to maintain the horizontal state of the horizontal boom in response to the rolling of the lower body. 3. The method of claim 2, A crane is provided with a stopper or brake to prevent the roller from moving over a certain range. 3. The method of claim 2, The lower body includes one or more first and second pillars that are installed at a transverse spacing; And the rail is supported and installed by the first and second pillars. The method of claim 8, The rail includes first and second rails installed on the first and second pillar sides, respectively. The upper body includes first and second vertical beams standing upright from the first and second pillar side, respectively, The roller is attached to the lower side of the first and second vertical beams provided on the first and second rail. Floating body provided with the crane of Claim 1 or 2. The method of claim 10, The control unit for controlling the movement of the upper body in response to the swinging of the lower body. The method of claim 11, And the control unit controls to maintain the horizontal state of the horizontal boom in response to the rolling of the lower body.

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