KR100830243B1 - Final sighting - Google Patents

Abstract

The present invention relates to a method for aligning a ship's axis / managing in a floating dock, wherein the laser beam center of the first laser level (10a) attached to a flat portion in the center of the bottom is attached to both sides of the bottom and the front of the hull. One laser sensor 20a is aligned with the three laser sensors 20a, and a second laser sensor 20b or a laser staff is installed on the extension line of the first laser level 10a in the floating dock, and the rudder horn boss can be matched with the other cores. The second laser level 10b is installed on the second laser sensor 20b parallel to the bottom base surface, or the bottom base surface detection step of matching the center of the laser beam with the laser beam is performed, and the second laser level 10b is performed. Move the second laser level 10b on the reference plane so that the center of the vertical laser beam is aligned with the axial center piano line, and check the center position on the steering gear deck. It consists of the step of installing. In the bottom surface detection step, the base plane detection can be performed by using the total station 30a and the laser staff instead of the laser level and the laser sensor.

The present invention enables the ship's axis / lineage alignment even within the floating dock can create the effect of shortening the air of the ship and increasing the annual dry spinal cord.

Description

How to align ship axis / managing in floating dock {FINAL SIGHTING}

1 is a schematic side view of a ship showing a state in which the first laser level is attached to the bottom of the ship for detecting the ship base surface of the present invention;

2 is a schematic plan view of a ship showing a state in which a laser sensor or a laser staff is installed on the bottom and the dock to extend the ship base surface of the present invention;

3 is a schematic plan view of a ship showing a state in which a second laser level is installed below the other core for detecting a ship base surface of the present invention;

4 is a schematic plan view of a ship showing a ship base surface detection state of the present invention;

FIG. 5 is a schematic side view of a ship showing a state where a total station is positioned below the bottom of a ship and a measurement target is attached to the ship base plane of the present invention; FIG.

Figure 6 is a schematic side view of a ship showing a state of completing the axis / helm alignment according to the present invention;

Figure 7 is an illustration of a laser sensor (apparatus for finding the laser beam center position) attached to the dock wall for detecting the vessel base surface of the present invention;

FIG. 8 is an exemplary view of a laser staff (apparatus showing numerical values by finding the laser beam center position) attached to a dock wall or a dock for detecting a ship base surface of the present invention.

9 is a schematic side view of a ship showing the method of aligning the ship axis / passage on land

<Description of the symbols for the main parts of the drawings>

10a: first laser level 10b: second laser level

20a: first laser sensor 20b: second laser sensor or laser staff

30a: first total station 30b: second total station

40a: first measurement target 40b: second measurement target

The present invention relates to a method of aligning a ship's axis / helm in a floating dock, so that the axial / berth aligning can be easily performed even in a floating dock of the sea by avoiding the axial / helm alignment method only in land (assembly or dock) By doing so, both the small and medium sized ships as well as the ultra-large sized ships can be completely dried on land and at sea.

In general, in the case of land drying, the shaft / manual alignment method is equipped with a shaft center jig 2 at the tip of a propeller shaft 1 of a ship as shown in FIG. 9, and a support 6 is installed at an opposite position to support the support 6. The 0.7 mm diameter piano wire 4 between the shaft and the shaft center jig 2 on the extension line of the shaft center, and then into the hole of the rudder horn boss on the steering gear deck of the ship. And vertically penetrates the pendulum 5 to install the weight 5 at the lower end of the axially extended piano wire 4. Set it.

As described above, the land vessel axis / passage alignment method has an additional shaking effect due to the vibration and wind effect of the ship, but since the work process is easy, most of the land ship shaft / passage alignment methods are adopted as above. to be.

The present invention is to escape from the axis / aligning method only in the land (assembly or dock) as described above and to perform the axial / delta alignment in the floating dock of the sea to realize the complete drying of the land and sea even in the ultra-large vessel There is this.

The present invention detects the base surface of a ship by using a laser level and a laser sensor (or laser staff) or a total station in a floating dock. A ship axis / passage on the land is presented by a method of moving on a reference plane so as to coincide with and checking the center position on the steering gear deck so as to easily set the rudder by installing a piano wire at the center line of the vertical laser beam. The purpose of this study is to establish a ship shaft / manage alignment method that can be implemented in floating docks without resorting to the alignment method, and to promote shipbuilding spinal cord development and development of production technology.

Hereinafter, with reference to the accompanying drawings, a preferred date and time for the vessel axis / manuscript alignment method in the present invention floating dock in detail as follows.

In the drawings, reference numeral 50 denotes a propeller shaft, 60 denotes a rudder horn boss, and 100 denotes a floating dock.

According to the present invention, the center of the laser beam of the first laser level (10a) attached to the flat portion in the center of the bottom surface is matched with the three first laser sensor (20a) attached to both the bottom surface and the front side of the hull and then floating dock Submarine base surface is provided by installing the second laser sensor 20b or the laser staff on the extension line of the first laser level 10a, and installing the second laser level 10b below the rudder horn boss which can be matched with the other cores. The second laser sensor 20b parallel to the laser beam or the bottom base plane detection step of matching the laser beam center with the laser beam, and performing the second laser level 10b so that the center of the vertical laser beam coincides with the axial piano line. Moving the laser level (10b) on the reference plane to check the center position on the steering gear deck, characterized in that it comprises a step of installing a piano line on the center line of the vertical laser beam.

1 and 2 are schematic side views of a ship showing a state in which the first laser level is attached to the bottom of the ship for detecting the ship base plane, and a laser sensor or a bottom surface and a dock to extend the ship base plane. A schematic plan view of a ship showing a state where the laser staff is installed. A magnet is attached to the first laser level 10a on a flat portion in the center of the bottom of the ship, and both sides and the hull of the first laser level 10a are mounted. The first laser sensor 20a is attached and fixed to the front side of each of the magnets to adjust the leveling screw of the first laser level 10a so that the three first laser sensors 20a coincide with the horizontal rotating laser beam. After the detection, the second laser sensor 20b or the laser staff is installed on both sides and one side of the dock on the extension line on the plane where the laser beam and the first laser sensor 20a coincide. System.

3 and 4 are schematic plan views of a ship in which the second laser level 10b is installed under the other core for detecting the ship base surface of the present invention and showing the ship base surface detection state. The second laser level (10b) is installed below the rudder horn boss that can be matched, but the second laser level (3) is aligned so that the center heights of the three laser beams are matched based on the second laser sensor (20b) or the laser staff. Adjusting the leveling screw of 10b) detects the bottom base surface under the other core.

In addition to the method of using the laser level to detect the base surface of the vessel, the present invention may perform the base surface detection step with the total station as shown in FIG.

First, the first total station 30a with the shaft compensation function released at the center of the bottom surface is installed, and the first measurement target 40a is fixed to each side and one side of the first total station 30a by magnets. The three base measurement targets 40a are detected using the first total station 30a by selecting the base plane of the ship as the reference plane by three-dimensional measurement and coordinate transformation. Next, the plane formed by the three second measurement targets 40b provided on both sides and one rear side of the dock is set to be parallel to the ship base surface, and the axial compensation function is released below the rudder horn boss which can coincide with the center of gravity. 2 total stations 30b are installed to measure the three second measurement targets 40b and check the base surface values, and then a laser sensor or a laser staff is installed at both sides and the front positions of the second total stations 30b, respectively. To the base surface position.

Therefore, the plane connecting the reference points ('0') of the three laser sensors or the laser staff is parallel to the base surface and newly renews the laser level instead of the second total station 30b installed below the rudder horn boss which can be matched with the center of gravity. After installation, adjust the leveling screw so that the center height of the laser beam coincides with the laser sensor or laser staff reference point and finally detect the bottom base surface under the other core.

When the base surface detection step of the ship is performed, as shown in the schematic side view of the ship showing the state of completing the axial / total alignment of FIG. 6, the base surface is detected by the horizontal rotating laser beam of the second laser level 10b below the other core. After confirming, move the laser level on the reference plane so that the center of the vertical laser beam coincides with the axial center piano line, and check the center of the second laser level vertical laser beam on the steering gear deck and install the piano line on the center line of the vertical laser beam. Do it.

The first laser level 10a and the first laser sensor 20a are pedestals so that the height of the center of the laser beam of the first laser level 10a and the coincidence point of the first laser sensor 20a can be set to be the same. And an attachment jig, and three leveling screws and on / off magnets are attached to the pedestal of the first laser level 10a.

According to the present invention consisting of the above steps, after setting the other core (rudder shaft center line) on the basis of the ship's bottom surface and shaft center (propeller shaft center line), the piano core is installed on the other core and the steering gear deck and the rudder horn boss By measuring the eccentricity of the piano core of the core in micrometers, the rudder shaft bush can be eccentrically processed according to the eccentricity, so that the axial center and the core can be finally matched by the eccentrically processed bush.

Since the floating dock is floating in the sea, the ship under construction in the floating dock has the factors of continuous dynamic motion and deformation, so the verticality of the ship cannot be confirmed by the piano wire suspended by the weight. The total station can be used to set the center of gravity based on the ship's base and axis.

When the ship shaft / manage alignment method as described above is performed in the floating dock, it is possible to accurately measure the eccentricity of the final siting and the rudder shaft hole in the floating dock, which may help to shorten the ship's air and increase the spinal cord by expanding the workshop. An opportunity can be prepared.

Claims (2)

Align the center of the laser beam of the first laser level (10a) attached to the flat portion of the center of the bottom surface with the three first laser sensor (20a) fixed to both the bottom surface and the front side of the hull and then the first in the floating dock Providing a second laser sensor 20b or a laser staff on an extension line of the laser level 10a; The second laser level (10b) is installed below the rudder horn boss that can be matched to the center of gravity, and the center of the bottom beam is detected by matching the center of the laser beam with the second laser sensor 20b or the laser staff. step; And And aligning the center of gravity of the second laser level of the second laser level (10b) with the center of the string gear deck to establish the center of gravity. Installing a first total station (30a) in which the axis compensation function is released at a center position of the bottom surface; The first measurement targets 40a are respectively attached to and fixed to both sides of the first total station 30a and the front side of the hull by measuring the three first measurement targets 40a with the first total station 30a. Detecting a face; Setting a plane formed by three second measurement targets 40b provided on both sides and one rear surface of the dock to be parallel to the vessel base surface; Confirming a base surface value by installing a second total station (30b) in which a axial compensation function is released below the rudder horn boss which is coincident with the other core, and measuring the second measurement target (40b); The plane connecting the reference point ('0') of the laser sensor or the laser staff is installed by adjusting three laser sensors or laser staffs on both sides and the front positions of the second total station 30b, respectively, to the base surface position. Newly installing a second laser level (10b) in place of the second total station (30b) below the rudder horn boss that is parallel to the plane and coincides with the other cores; Detecting a bottom base surface by matching a laser beam center with a laser sensor or a laser staff; And And aligning the center of gravity of the second laser level of the second laser level (10b) with the center of the string gear deck to establish the center of gravity.

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