KR20000018156A - An apparatus for preventing swing of container crane - Google Patents

Abstract

The present invention controls the flow of the container box and the spreader in the process of the spreader is located at the top of the container box and the process of loading and unloading the container box to the desired place to easily fix the spreader to the container box as well as easily The present invention relates to an anti-shake device of a container crane capable of loading and unloading a container box to a desired location, and is fixedly coupled to an upper end of a spreader 58, and has a roller 66 rotatably mounted on both inner sides thereof. In addition, a forward and reverse motor 68 for rotating the roller 66 is provided at one of the rollers 66 on one side of the rollers 66, and the belt 70 is wound on the outer circumferential surface of the rollers 66. A case 64 having a weight balance weight 72 for selectively horizontally moving due to the drive of the forward and reverse rotation motor 68 to the belt 70, and the spreader 58 of the case 64. Tilt detection sensor 76 mounted on one side and detecting the degree that the spreader 58 flows from side to side and detects and outputs a resistance value according to the detected signal, and tilt sensor (one on one side of the trolley 52) And a control unit 78 for judging and comparing the resistance value output from the control unit 76 with the built-in reference value to selectively output the control signal to the forward and reverse rotation motor 68.

Description

An apparatus for preventing swing of container crane

The present invention relates to an anti-shake device of a container crane, and more specifically, to control the flow of the container box and the spreader in the process of the spreader is located at the top of the container box and the process of loading and unloading the container box to the desired place The present invention relates to an anti-shake device of a container crane that can easily combine and secure a spreader to a container box, and can easily load and unload a container box to a desired place.

Handling and protection of cargoes has become very convenient a few years ago with the advent of containerization, which means that bridge cranes with collapsible booms and collapsible booms are used by industry to load and unload containerized cargo and other large materials. Is used as a standard product. These containers are being moved by cranes between the waterborne ship and the dockside transport device.

When the cargo container ship is moored at the dock, the bridge crane is moved along the pier parallel to the ship, with the collapsible boom extending across the ship's beam over the ship's cells and the ship's cells are moved to the cargo container. It is a point to carry. The collapsible boom in the operating position extends horizontally outboard from the crane's superstructure, and in its folded position is transferred to the superstructure of the anchored ship along the pier adjacent to the crane. Containers may be transported along the crane's gantry between the pick-up location of the wharf and the storage location placed in the beam of the ship anchored at the dock or deck.

The gantry portion of the cargo container handling crane includes a collapsible boom, a side compartment, and a rear extension of the boom supported by the crane superstructure. The trolleys run along the gantry and are hooked into holes to pick up and attach the cargo containers to suspend the cargo container lifting spreader on a wire rope. The purpose of the bridge crane is to move the cargo container by a certain horizontal distance from the picking area to the loading place. In each operation, the pick-up area is most commonly a dockside, where the container is taken from a flat trailer or transport truck or rail car, dismounted by crane and lowered into the ship's cargo container cell. Or conversely here the container is lifted from the cell and transferred to a depot or truck, trailer or rail vehicle.

In the transport cycle by crane, the container must first be picked up, then lifted vertically, moved horizontally and lowered to the loading site. During some movement, the horizontal and vertical movement of the container can occur simultaneously. Each transport cycle takes a long time to process one container. The container handling capacity of the crane is determined and limited by the transport cycle time.

1 is a front view showing the configuration of a general container crane. 1, a plurality of vertical frames 10 are provided, and a plurality of horizontal frames 12 are coupled and fixed by conventional fixing means between the vertical frames 10 and the lower ends of the vertical frames 10. It is done. Between the vertical frame 10 and the upper end of the vertical frame 10, a plurality of longitudinal frames 14 are fixedly coupled by conventional fixing means. At the bottom of the vertical frame 10 is fixed to the longitudinal frame 14 is fixed to the bottom of the boom (Boom: supporting the load through the pulley and rope, etc., and the column-shaped structure to change the working radius according to the relief, expansion, expansion, bending 16 is fixed in the horizontal direction. A plurality of wires 18 and support bars having one free end coupled to both upper ends of the boom 16 and the other free end coupled to the longitudinal frame 14 to maintain the horizontal state of the boom 16 are supported. 20 is provided.

A trolley 22 which is horizontally slid from the top of the boom 16 by a roller is provided, and inside the trolley 22 a rope driving means for selectively vertically moving the rope 24 (not shown) Is mounted). At the free end of the rope 24 there is a spreader 28 which is selectively coupled and fixed to the top of a container box (a container of a certain size carrying goods from the warehouse of the shipper to the warehouse of the sewer). Bonding is fixed. The lower end side of the trolley 22 is equipped with a cockpit 30 that the operator boards the crane.

Although the container box could be loaded and unloaded using the container crane configured as described above, when using such a container crane, it was very inconvenient to transport the container box to a desired place. That is, in order to load and unload the container box, the spreader is fixed to the top of the container box, and then the container box is moved to a desired place due to the horizontal movement of the trolley, whereby the trolley is moved by the impact (action and reaction) and wind. The container box is shaken from side to side, so it is very inconvenient to ship and unload the container box to a desired place, as well as to wait until the shaking time stops, which takes a lot of time. In addition, such a problem is not only caused to move the container box, but also occurs in the process of positioning the spreader to the top of the container box it was also very inconvenient to fix the spreader to the container box.

Recently, techniques to control the shaking have been developed, but this is simply the movement of the trolley from side to side in the opposite direction of flow (the shaking of the container box and the spreader). The effect of work differs depending on the skill of the workers who are not used at the work site.

In view of the above problems according to the present invention, the object is to control the flow of the container box and the spreader in the process of the spreader is located at the top of the container box and the process of loading and unloading the container box to the desired place By fixing the spreader to the container box easily, as well as providing an anti-shake device of the container crane that can be easily loaded and unloaded container box in the desired place.

1 is a front view showing the configuration of a typical container crane

Figure 2 is a front view showing a state equipped with a shake prevention device of the container crane according to the present invention

Figure 3 is an enlarged sectional view of the main portion showing the configuration of the anti-shake device of the container crane according to the present invention

♣ Explanation of symbols for main part of drawing ♣

40: vertical frame 42: horizontal frame

44: longitudinal frame 46: boom

48: wire 50: support bar

52: trolley 54: rope

56 container box 58 spreader

60: cockpit 62: accommodation space

64: case 66: roller

68: forward and reverse rotation motor 70: belt

72: weight balance 74: buffer

76: tilt detection sensor 78: control unit

90: container crane

The object of the present invention is fixed to the upper end of the spreader, the roller having the same axis on both sides of the inner side is rotatably mounted, the forward and reverse motor for rotating the roller on any one of the rollers, The belt is wound around the outer circumferential surface of the roller, and the case is provided with a weight balance addition selectively horizontally moving due to the drive of the forward and reverse rotation motor, and mounted on one side of the spreader to detect the degree of spread of the spreader from side to side. And a tilt detection sensor for detecting and outputting a resistance value according to the detected signal, and comparing the resistance value output from the tilt detection sensor on one side of the trolley with a built-in reference value to selectively output a control signal to a forward and reverse rotation motor. By the anti-shake device of a container crane, characterized in that it comprises a control unit W can be achieved.

Hereinafter, a preferred embodiment of the anti-shake device of the container crane according to the present invention will be described in more detail based on the accompanying drawings.

Figure 2 is a perspective view showing a state of mounting the shake device of the container crane according to the present invention, Figure 3 is an enlarged cross-sectional view of the main portion showing the configuration of the shake device of the container crane according to the present invention. 2 and 3, a plurality of vertical frames 40 are provided, and a plurality of horizontal frames 42 are provided between the vertical frames 40 and the lower ends of the vertical frames 40 by conventional fixing means. Is fixed. Between the vertical frame 40 and the upper end of the vertical frame 40, a plurality of longitudinal frame 44 is fixed by the conventional fixing means. A boom 46 is fixedly coupled in the horizontal direction at the bottom of the portion in which the longitudinal frame 44 is fixed to the vertical frame 40. One side of the free end is fixed to the upper end of both sides of the boom 46, the other free end is fixed to the longitudinal frame 44, the plurality of wires 48 and the support bar to maintain the horizontal state of the boom 46 ( 50). A trolley 52 which is slid in the horizontal direction from the top of the boom 46 by the roller is provided, and inside the trolley 52 is equipped with a rope driving means (not shown) for selectively vertically moving the rope 54. do. At the free end of the rope 54, a spreader 58, which is selectively coupled to the top of the container box 56, is coupled and fixed. The lower end side of the trolley 52 is equipped with a cockpit 60, the operator boarding the crane.

A case 64 having a predetermined accommodation space 62 is provided at an upper end of the spreader 58, and a pair of rollers 66 are rotatably mounted on both inner sides of the case 64. When the pair of rollers 66 are rotatably mounted inside the case 64, it is preferable to be mounted to have the same axis. A forward and reverse motor 68 for selectively rotating the roller 66 on one side of the roller 66 is provided, and a driving shaft (not shown) of the forward and reverse motor 68 is coupled to one side of the roller 66. It is fixed. A belt 70 is wound around the outer circumferential surface of the roller 66, and the belt 70 is provided with a weight balance weight 72 having a transfer wheel 71 attached to a lower end thereof. The weight balance weight 74 is preferably formed to have a weight that can control the shaking of the container box 56 and the spreader 58.

A buffer 74 is provided on both inner upper sides of the case 64 to prevent the weight balance weight 72 from contacting the case 64 as well as to absorb the shock generated when the weight 64 comes in contact with the case 64. One side of the spreader 58 is provided with a tilt detection sensor 76 for detecting the degree that the spreader 58 flows from side to side and detecting and outputting a resistance value according to the detected signal, the tilt detection sensor 76 The mounting position is preferably mounted at a position where the shaking of the spreader 58 can be easily detected. One side of the trolley 52 is provided with a control unit 78 for judging the resistance value output from the inclination detection sensor 76 with a built-in reference value and selectively outputting a control signal to the forward and reverse rotation motor 68. The built-in reference value of 78 is input using a computer system.

It describes the state and the effect according to the operation of the anti-shake device of the container crane configured as described above.

When the container box 56 and the spreader 58 flow in the process of placing the spreader 58 to the top of the container box 56 and loading and unloading the container box 56 to a desired place, the spreader 58 The inclination detection sensor 76 provided at one side of the container box 56 and the spreader 58 detects a shake and detects a resistance value according to the detected signal and outputs it to the controller 78. When the inclination detection sensor 76 outputs a resistance value in which shaking of the container box 56 and the spreader 58 is detected, the control unit 78 compares the control signal with a built-in reference value and transmits a control signal to the forward and reverse rotation motor 68. Will output When the control signal is output to the forward and reverse rotation motor 68, the forward and reverse rotation motor 68 is driven according to the signal of the control unit 78. At this time, the weight balance weight 72 has a state that is selectively moved left and right according to the driving direction of the forward and reverse rotation motor (68). That is, when the trolley 52 is stopped in the state of moving to the left, the spreader 58 is shaken from side to side with respect to the trolley 52, wherein the weight balance weight 72 of the forward and reverse rotation motor 68 The movement of the spreader 58 is limited by the movement in the opposite direction in which the spreader 58 is moved.

As the spreader 58 is restricted to flow from side to side due to the impact and wind caused by the movement of the trolley 52, the container box 56 can be accurately loaded and unloaded at the desired place (position) as well as the spreader. 58 can be easily fixed to the container box 56. In addition, since the spreader 58 is limited to flow from side to side due to the impact and wind generated by the movement of the trolley 52, the workability is improved by loading and unloading the container box 56 in a short time. Of course, if you have a basic knowledge of the container crane 90, anyone can easily operate the container crane (90).

As described above, the anti-shake device of the container crane according to the present invention is configured to restrict the flow of the spreader due to the impact and wind in which the tally is moved, so that the container box can be accurately loaded and unloaded at a desired place. Of course, the spreader is to have an effect that can be easily fixed to the container box.

Claims (2)

In constructing a container crane used to load and unload container boxes, The roller 66 is fixedly coupled to the upper end of the spreader 58, and the roller 66 having the same axis on both inner sides is rotatably mounted, and the roller 66 is disposed on one side of the roller 66 of one of the rollers 66. A forward and reverse motor 68 for rotating is provided, and a belt 70 is wound around the outer circumferential surface of the roller 66, and the belt 70 selectively moves horizontally due to the drive of the forward and reverse motor 68. Case 64 is provided with a balance weight 72, A tilt sensor 76 mounted on one side of the spreader 58 to detect a degree that the spreader 58 flows from side to side and detect and output a resistance value according to the detected signal; Comprising a control unit 78 on the side of the trolley 52 to compare the resistance value output from the tilt sensor 76 with the built-in reference value and selectively output the control signal to the forward and reverse rotation motor 68 Anti-shake device of container crane, characterized in that. The method of claim 1, Containers, characterized in that the weight balance weight 72 is provided on both sides of the inner upper end of the case 64 to prevent the weight balance weight 72 from coming into contact with the case 64 as well as absorb a shock generated when the weight is reached. Anti-shake device of crane.