JPH05286690A - Method and device for aligning spreader with container crane - Google Patents

Abstract

PURPOSE: To manufacture a device for arranging a cable while a cable fixed point is formed, wherein the rotational angle required for a spreader is provided with relatively less mechanical cost while a load shift at the cable is kept small. CONSTITUTION: A device for aligning a spreader 3 of a container crane is provided with a trolley 1 comprising motor-driven rising/falling drums 6a and 6b which is allocated to a container crane bridge for running, and cables 7a-7d, cable rollers 5a-5d, deflection roller, operation members 8a-8d, and cable fitting piece arranged on a roller crossbeam 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley having an electrically driven lifting drum, which is movably arranged in a container crane bridge, and a rope, a rope roller, and a turning roller arranged on the trolley and the roller cross beam. The present invention relates to a device for positioning a spreader at the time of transshipment of a container by a container crane having an operation member and a rope attachment piece. The invention further relates to a method of rotating a spreader about a vertical axis, a vertical axis and a horizontal axis.

[0002]

2. Description of the Prior Art In a container crane having a movable trolley, in a known arrangement of a winding cylinder and a rope fixing point on a trolley and a rope roller on a roller crossbeam and a usual rope indoor unit between the trolley and the roller crossbeam, a trolley Due to the limitation of the spacing of the rope anchoring points in the frame, only a slight possibility of movement of the rope roller beam and thus the container secured to the spreader is obtained when the spreader is retracted into the cabin.

[0003] The ropes are usually connected from the winding cylinder approximately vertically downwards to the rope rollers on the roller crossbeams and then approximately vertically upwards to a fixed point. The horizontal distance from the center of the rope roller to the center of the rope fixing point and the rope starting point of the winding drum is small. The horizontal movement of the roller cross beam, and thus the rotation of the spreader, is limited to the value of this distance when the height of the fixed point changes.

Increasingly required rotation angles of, for example, ± 5 ° cannot be obtained, and even at extremely small angles, complete load transfer to half of the rope is already achieved. To obtain the required rotation angle and to limit the load transfer, the spacing of the fixed points can be set horizontally adjustable. However, this is only possible with considerable mechanical outlay.

Designing the spreader as a rotary spreader is not an advantageous solution for operating a container crane, for example when loading and unloading containers on a container ship, when only small rotation angles are required.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to obtain the mechanical cost of the spreader which requires a relatively small rotation angle and to keep the load movement in the rope small.
It consists in providing a device for arranging cords and forming cord anchoring points. These anchorage points must allow different movements of the spreader around the three axes.

The rope guide device must also reduce the pendulum movement of the container during the constant movement of the trolley.

[0008]

According to the device of the present invention,
This task is based on the fact that the winding cylinders arranged on the trolley are arranged in one line and arranged on one axis, or the winding cylinders are arranged in two lines and are arranged in parallel, and the ropes are fixed. The points are configured as operating members, the operating members being attached to one winding cylinder, the operating members being attached to the other winding drum, and the ropes starting from the winding drum and attached to the roller crossbeam of the spreader. The rope extends through the rope roller and is strongly connected to the tensioner with the actuating member, and the rope starts from the winding drum and extends through the rope roller attached to the roller crossbeam of the spreader and pulls the tensioner. Is strongly connected to the actuating member and is solved by the actuating member being configured as a hydraulic cylinder or a screw shaft transmission. Furthermore, according to the method of the invention, the task is that the operating member is retracted and the operating member is withdrawn to achieve rotation in one direction, or the operating member is moved to achieve rotation in the opposite direction. It is solved by withdrawing and withdrawing the operating member.

With the arrangement according to the invention of the winding cylinder in the frame of the trolley, the rope fixing points as actuating members, the deflecting rollers and the rope rollers or in the roller crossbeam of the spreader, the rope guiding device between the trolley and the roller crossbeam. Due to the overall arrangement, the spreader is ± 5 centered on the vertical and vertical axes.
The container can be rotated by ± 5 ° about the horizontal axis and can be adjusted to the surface that forms the loading surface when loading and unloading the container.

One of the operating members of one winding cylinder,
The spreader can be rotated about the vertical axis by lowering the rope with the diagonally opposed operating member of the other winding cylinder or pulling the rope with the other operating members.

By lowering the rope by the operating member of the winding cylinder on the same side and at the same time pulling on the operating member on the other side of the winding cylinder, a lateral tilting of the spreader occurs, that is to say the spreader. Can be rotated about the vertical axis. By rotating one winding cylinder and the other winding cylinder in opposite directions or by lowering (or raising) the operating member pair of one winding drum and raising (or lowering) the operating member pair of the other winding drum. The spreader can be rotated about its axis.

[0012]

BRIEF DESCRIPTION OF THE DRAWING Embodiments of the invention and the course of the method will be explained in more detail with reference to the drawing.

FIG. 1 shows a trolley 1 which is arranged on the axis of the trolley 1.
An operating member 8a for the ropes 7a and 7b, which is arranged on the frame of the trolley 1 and is connected to the winding drum 6a via the winding drums 6a and 6b and the rope rollers 5a and 5b attached to the roller cross beam 2. And 8b and operating members 8c and 8d for the ropes 7c and 7d, which are connected to the winding drum 6b via rope rollers 5c and 5d attached to the roller cross beam 2.

Below the roller cross beam 2, a spreader 3 for carrying the container 12 is mounted.

FIG. 2 shows a cross section of the device according to the invention. Winding cylinders 6a and 6b are arranged on the trolley 1 in the front-rear direction, and operating members 8b, 8d and 8 are arranged on both sides with a space 9 therebetween.
a, 8c are arranged, and these operating members are the ropes 7
b, 7d and 7a, 7c and through the turning rollers 5b,
5d and 5a, 5c through winding drums 6a, 6b,
A device for rotating the spreader 3 mounted on the roller cross beam 2 by ± 5 ° about the vertical axis, the vertical axis and the horizontal axis is formed.

FIG. 3 shows the double-winding cylinders 6a and 6b arranged in parallel with each other and the operation member 8 arranged horizontally.
9 shows a spreader positioning device having a, 8b, 8c and 8d. Additional guide rollers 10a, 10b, 10c, 1 for guiding the line between the trolley 1 and the roller crossbeams.
0d and 11a, 11b, 11c, 11d are required.

In other respects, the spreader positioning device is constructed in the same manner as in the previously described FIGS. 1 and 2.

FIG. 4 shows another modification of the spreader positioning device having the double-winding cylinders 6a and 6b which are arranged in parallel with each other. For structural reasons, in this case,
The operation members 8a, 8b, 8c, 8d are arranged at the vertical positions on the frame of the trolley 1, respectively. Only the turning rollers 10a, 10b, 10c, 10d are required for the rope guidance.

[Brief description of drawings]

FIG. 1 is a perspective view of a spreader positioning device according to the present invention.

FIG. 2 is a sectional view of a spreader positioning device according to the present invention.

FIG. 3 is a perspective view of another embodiment of a spreader positioning device according to the present invention.

FIG. 4 is a perspective view of yet another embodiment of a spreader positioning device according to the present invention.

[Explanation of symbols]

 1 Trolley 2 Roller lateral beam 3 Spreaders 5a, 5b, 5c, 5d Cable rollers 6a, 6b Winding cylinder 7a, 7b, 7c, 7d Cable 8a, 8b, 8c, 8d Operation member

Claims (7)

[Claims] 1. A trolley having an electrically driven lifting drum arranged movably on a container crane bridge, and a rope, a rope roller, a turning roller, an operating member and a rope installation arranged on the trolley and the roller cross beam. In the device for positioning the spreader during the transshipment of the container by the container crane having the pieces, the winding cylinders (6a, 6b) arranged on the trolley (1) are configured in one line and arranged on one axis. Two cages or winding cylinders (6a, 6b)
The fixed points of the ropes (7a, 7b, 7c, 7d) are arranged on the operating member (8a).
~ 8d), the operating members (8a, 8d)
b) is attached to one of the winding drums (6a), and the operating member (8
c, 8d) is attached to the other winding cylinder (6b), and the ropes (7a and 7b) start from the winding cylinder (6a) and are attached to the roller cross beam (2) of the spreader (3). It extends through the rollers (5a and 5b) and is strongly connected to the operating member (8a, 8b) with respect to the tension, and the rope (7
c and 7d) starting from the winding cylinder (6b) and extending through the rope rollers (5c and 5d) mounted on the roller crossbeams (2) of the spreader (3), operating member strong against pulling tension. A positioning device for a spreader, characterized in that it is connected to (8c, 8d) and the operating members (8a-8d) are configured as hydraulic cylinders or screw shaft transmissions. 2. The rope roller (5a, 5b) or the rope roller (5c, 5d) is arranged offset from the roller cross beam (2) or inclined with respect to each other. Equipment. 3. An operation member (8a-8) for a rope (7a-7d).
d) is mounted in the vertical position on the frame of the trolley (1) and has additional deflection rollers (10a-10a) for guiding the ropes.
Device according to claim 1, characterized in that d) is provided. 4. An operation member (8a-8) for a rope (7a-7d).
d) is mounted in a horizontal position on the frame of the trolley (1) and has additional deflection rollers (10a-10a) for guiding the ropes.
Device according to claim 1, characterized in that d) and rope rollers (11a to 11d) are provided. 5. The actuating members (8b) and (8c) are retracted and the actuating members (8a) and (8d) are retracted to achieve rotation in one direction, or to achieve rotation in the opposite direction. The operating members (8b) and (8c) are pulled out and the operating members (8a) and (8d) are pulled in, respectively, according to claim 1,
A method of rotating a spreader about a vertical axis by means of a device according to claim 3. 6. The actuating members (8b) and (8d) are retracted and the actuating members (8a) and (8c) are retracted to achieve rotation in one direction, or to achieve rotation in the opposite direction. 5. The device according to claim 1, wherein the operating members (8b) and (8d) are withdrawn and the operating members (8a) and (8c) are withdrawn. How to rotate the spreader. 7. A winding drum (6a) raises the ropes (7a) and (7b) and a winding drum (6b) lowers the ropes (7c) and (7d) to achieve rotation in one direction. , Or the winding cylinder (6a) lowers the ropes (7a) and (7b) and the winding cylinder (6b) raises the ropes (7c) and (7d) to achieve rotation in the opposite direction, or The operating members (8b) and (8a) are retracted and the operating members (8d) and (8c) are withdrawn to achieve the rotation in the opposite direction, or the operating members (8b) and (8b) to achieve the rotation in the opposite direction. (8a) is pulled out and the operation member (8
d) and (8c) are drawn in,
Method for rotating a spreader about a horizontal axis by means of a device according to one of claims 1 to 4.