KR101785488B1 - Final shghting gage of vessels - Google Patents

Abstract

The present invention relates to a marine final sizing gauge.
To this end, the invention comprises a gauge body having a fixture; A measurement panel provided horizontally toward the front of the gauge body and having a measurement reference part; And a support panel provided on a lower portion of the measurement panel and on a front surface of the gauge body.
Accordingly, the present invention can facilitate the transportation and installation of the gauge during the shafting installation process, thereby greatly shortening the working time, and by increasing the measurement degree of the work and shafting alignment with a minimum number of persons, And further prevents inflow of vibration, performance degradation, bearing burnout and seawater generated during operation.

Description

{FINAL SHGHTING GAGE OF VESSELS}

The present invention relates to a marine final sizing gauge having a measurement panel having a reference groove on a jig body and a support panel so that the measurement panel and the support panel are perpendicular to each other. The gauge body has a shaft connecting portion, As shown in FIG.

Generally, the ship propulsion system checks the initial alignment state by shaving to prevent vibration, operating performance degradation, bearing burnout, and seawater from entering the engine room.

The shafting procedure of the cargo ship (short axis, fixed pitch propeller, low speed engine) is performed by first positioning the main engine, pre-sighting the center for boring of the stern tube, Since it is impossible to adjust the degree required for shafting installation to the extent that it is managed during the assembly and mounting process, if the casting of the stern tube is made with a margin and assembled and mounted within the margin, Machining the inner surface of the casting (Stern Tube Boring).

When the boring operation is completed, it is confirmed that the boring has been fitted to the center set in the pre-citing (Final Sighting), and the engine is mounted at the position determined in the pre-citing (Main Engine Erection).

The bush bearings are usually equipped with two aft sterns. After the stern tube boring, the inner diameter is measured to determine the outer diameter machining dimensions of the bush. The outer diameter is machined from the lathe and is then pushed into the hydraulic jack (Stern Tube Bush Fitting) The shaft of the shaft is inserted into the shaft tunnel behind the main engine, and the stern tube bushing is fitted. When the inner pipe work and cleaning are completed, the propeller shaft is inserted into the stern tube (Shaft Inserting).

When the propeller shaft is inserted into the stern tube, the propeller is pushed into the end of the propeller fitting to fix the propeller fitting. Then, the clearance of the stern tube bearing is measured, and a seal is installed to block the inflow of seawater into the stern tube (Stern Tube Seal Installation ), And fatigue is measured.

After shafting coupling bolt fitting of propeller shaft, intermediate shaft, stern shaft intermediate shaft and intermediate shaft shaft, intermediate shaft shaft and crankshaft of main engine, Shaft Alignment is designed Check the load applied to each bearing by measuring the force (Reaction Force Test).

5 is an exemplary view showing a state in which the shafts are aligned using a conventional sizing jig according to the prior art.

5, a lighting box 91 is installed on a central shaft 90 on which the main engine is to be placed, and a center box 90 is provided at the center of the stern stern tube 92. [ A jig 93 is installed to aim and match the bulb light of the lighting box 91. [ At this time, three to four forward stern tube centering jigs and slits 94 are provided on the center line 90 to set the center line of the propeller shaft.

However, there is a problem in that the centering jig installed for the shank alignment and the support for the slit installation are heavy, so that a long time is required for installation and transportation.

 In addition, there was a need to reinstall the piano wire before and after the machining of the stub tube.

In addition, there is a problem that a minimum number of people is required for such a task.

In addition, there has been a problem in that the measurement and marking of the shaft sizing are low.

There is another problem in that the degree of coaxiality is lowered.

Public utility model public office room 1993-026196 (December 24, 1993)

The present invention allows the gauge to be easily transported and installed so as to drastically shorten the working time, so that the work can be performed with a minimum number of persons and the degree of measurement of the shaft alignment can be increased.

The present invention relates to a gauge body having a fixture; A measurement panel provided horizontally toward the front of the gauge body and having a measurement reference part; And a support panel provided on a lower portion of the measurement panel and on a front surface of the gauge body, wherein the fixture is formed of a magnetic chuck having an ON / OFF handle.

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The gauge body is a metal panel having a predetermined thickness, and the upper end of the gauge body has a horizontal portion, and the lower end of the gauge body is integrally formed with a curved portion.

The measurement panel may include a rectangular piece portion at a free end portion, a triangular piece portion at a fixed end portion, and a connecting piece portion for connecting the rectangular piece portion and the triangular piece portion.

In addition, the measurement reference portion may be formed such that the reference grooves are perpendicular to the support body at right angles to the support body, and a plurality of coupling grooves are formed in the reference grooves at a center across the rectangular piece portion, the triangular piece portion, and the connection piece portion.

Further, the reference groove is characterized in that a space having a rectangular cross section is provided.

Also, the support panel is perpendicular to the measurement panel, has the same length, has a plurality of panel holes from the rear to the front, and a plurality of female threads are formed at the upper end of the support panel.

Further, the panel hole is reduced from the rear toward the front.

The gauge body and the support panel are each formed with a notch type fixing head insertion groove at an edge thereof.

In the present invention, the measurement panel having the reference groove in the gauge body and the support panel are provided at right angles to each other, so that it is possible to easily carry and install the gauge during the shaft installation process.

In addition, it is possible to reduce the working time dramatically.

In addition, the effect that the work can be performed with a minimum number of persons can be obtained.

In addition, by increasing the measurement accuracy of the shaft alignment, it is possible to prevent the vibration, the performance deterioration, the bearing burnout, and the seawater introduced during the ship operation from being further prevented.

1 is a perspective view of a marine final sizing gauge according to the present invention;
2 is an exploded perspective view of a marine final sizing gauge according to the present invention.
3 is a rear perspective view of a marine final sizing gauge according to the present invention.
FIGS. 4A and 4B are views showing the use state of a marine final sizing gauge according to the present invention; FIG.
5 is an exemplary view showing a state in which a shaft system is aligned using a conventional sizing jig according to the prior art;

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a marine final sizing gauge according to the present invention, FIG. 2 is an exploded perspective view of a marine final sizing gauge according to the present invention, and FIG. 3 is a rear perspective view of a marine final sizing gauge according to the present invention.

The finishing gauge for a ship according to the present invention has a function to measure a portion related to the shaft alignment and to facilitate the installation of the propulsion system after the shaft sizing operation. Accordingly, vibration, performance deterioration, bearing damage And seawater can be prevented from entering.

1 to 3, the sizing gauge is composed of a gauge body 10, a measurement panel 20, and a support panel 30, and the gauge body 10 is provided between an engine and a propeller And is provided so as to be easily detachable and attachable to the periphery of the engine and the periphery of the propeller positioned directly under the wire W. The fixing member 11 is provided to be perpendicular to the lower portion of the wire W, have.

For this, the gauge body 10 is formed of a metal panel having a predetermined thickness, and the upper end thereof has a horizontal part 101 and the lower end thereof is integrally formed with the curved part 102, 101, and the measurement panel 20 is prevented from being deformed by the support panel 30 coupled to the lower part thereof, while the measurement panel 20 is also vertically and horizontally shaped, that is, .

The fixture 11 is a means for easily attaching and detaching the metal part located at the periphery where the engine and the propeller are installed by the backside of the gage body 10 by using a magnetic force without using a bolt, And the magnetic chuck 111 is provided with a separate ON / OFF handle 111-1 having a function of interrupting magnetism.

The curved portion 102 provided at the lower end of the gage body 10 is provided to reduce the amount of material used and to prevent interference with surroundings during storage, transportation, and installation thereof.

The measurement panel 20 has a function of measuring the rotation of the shaft, the bearing, the stub boss, and the like according to the position of the wire W. The measurement panel 20 is horizontally disposed forward of the gauge body 10 And a measurement reference portion 21 are provided.

The measuring panel 20 is a means for increasing the strength while reducing the weight by integrally forming the rectangular piece 22, the triangular piece 23 and the connecting piece 24, and the rectangular piece 22 is arranged on the free end side The triangular piece portion 23 is located at the fixed end side and the connecting piece portion 24 is provided so that the rectangular piece portion 22 and the triangular piece portion 23 can be integrally connected to each other. At this time, it is preferable that the triangular piece portion 23 is provided so that an end portion of the triangular piece portion 23 can be held in contact with the horizontal portion 101 formed at the upper end of the gauge body 10.

The measurement reference portion 21 has a function of allowing measurements to be performed according to the arrangement of the wires W inserted into the reference groove 25 to be described later. The measurement reference portion 21 includes a rectangular piece portion 21, a triangular piece portion 22, A reference groove 25 is formed perpendicularly to the supporting body 10 in the vertical direction and in the right and left direction.

A plurality of coupling grooves 251 are formed in the reference groove 25 so that the lower part of the measurement panel 20 is coupled to the upper end of the support panel 30 by a bolt B, It is possible to prevent the thermal deformation occurring in the process of joining the joining parts 20 and the support panel 30 by welding.

The reference groove 25 is processed by using an end mill so that a cross section of the reference groove 25 is arranged to have a square shape and can be aligned by the wire W positioned in the space.

It is preferable that the reference groove 25 has a shape larger than the diameter of the wire W. It is more preferable that the reference groove 25 has a width of 4 mm and a depth of 2 mm, It is more preferable that the diameter of the wire W is 0.7 mm. That is, as the width of the reference groove 25 is wider than the diameter of the wire W, it is possible to measure the degree of turning while viewing the direction in which the wire W is positioned in the reference groove 25.

The support panel 30 has a function of preventing the measurement panel 20 provided at right angles to the upper end side of the gauge body 10 from being sagged downward. The support panel 30 includes a lower portion of the measurement panel 20, The support panel 30 is perpendicular to the measurement panel 20 and is provided to have the same length.

The support panel 30 is formed with a plurality of panel holes 31 from the rear to the front, and is reduced in weight from the rear to the front. To this end, it is preferable that the panel hole 31 has a shape in which the diameter gradually decreases from the rear to the front.

A plurality of female screw portions 32 are formed on the upper end of the support panel 30 so that the lower end of the measurement panel 20 can be screwed on the bolts B inserted into the fastening recesses 251, Respectively.

The gauge body 10 and the support panel 30 are formed with notch type fixing head insertion grooves 40 at their corners so that the back surface of the gauge body 10 is fixed by a fixture 11 composed of a magnetic chuck 111 The wire fixing body WF fixing the wire W is prevented from being interfered with in the process of fixing it around the output shaft of the engine and the periphery of the propeller shaft. That is, the wire W held at the center of the wire fixing body FW without being interfered with the wire fixing body WF is stably inserted into the reference groove 25 formed in the measuring panel 20 .

FIGS. 4A and 4B are views illustrating the use state of a marine final sizing gauge according to the present invention. FIG.

First, both ends of the wire W are pulled by the wire fixing body WF between the engine and the flowpuller so that the shaft measurement is performed using the marine finishing gauge. At this time, a sensor groove is formed at the center of the output shaft of the engine using a drill or the like, and the wire W is fixed to the center groove formed by the wire fixing body WF, (W).

The wire W is placed in the reference groove 25 of the measurement reference portion 21 with the rear surface of the gauge body 10 abutting on the end of the output shaft OS of the engine, So that the gauge body 10 is attached by the magnetic chuck 111. [

In this state, the wire W as a reference is inserted into the reference groove 25 of the measurement reference portion 21, that is, as shown in Fig. 4A, W are parallel to each other, it is possible to know whether or not the centers coincide with each other (Fig.

4B shows a state in which the center is not mismatched. As the wire W is enlarged relative to the reference groove 25 and is offset in the downward direction as shown in FIG. 4B, Bosses, or the like, or by repositioning the wire W to be positioned at the center of the reference groove 25, it is possible to correct or align the deflection of the shaft system.

10: gauge body 11: fastener
20: Measurement panel 21: Measurement reference part
22: Rectangular piece 23: Triangular piece
24: connecting piece 25: reference groove
30: Support panel 31: Panel hole
32: Female thread portion 40: Notch type fixing head insertion groove
101: horizontal portion 102: bend portion
111: Magnetic chuck 111-1: ON / OFF handle
251: fastening groove

Claims (9)

A gauge body having a fixture;
A measurement panel provided horizontally toward the front of the gauge body and having a measurement reference part; And
And a support panel provided on a lower portion of the measurement panel and on a front surface of the gauge body,
Wherein the fixture comprises a magnetic chuck having an ON / OFF handle.
delete The method according to claim 1,
Wherein the gauge body is a metal panel having a predetermined thickness, the upper end of the gauge body has a horizontal portion, and the lower end of the gauge body is integrally formed with a curved portion.
The method according to claim 1,
Wherein the measurement panel is formed integrally with a rectangular piece portion of the free end portion, a triangular piece portion of the fixed end portion, and a connecting piece portion connecting the rectangular piece portion and the triangular piece portion.
The method according to claim 1,
Wherein the measurement reference portion is formed such that the reference groove is perpendicular to the support body in the vertical direction and the right and left directions at a center of the rectangular piece portion, the triangular piece portion and the connecting piece portion, and a plurality of coupling grooves are formed in the reference groove. gauge.
6. The method of claim 5,
Wherein the reference groove is provided with a space having a rectangular cross section.
The method according to claim 1,
Wherein the support panel is at right angles to the measurement panel, has the same length, has a plurality of panel holes from the rear to the front, and a plurality of female threads are formed at the upper end of the support panel. 8. The method of claim 7,
Wherein the panel hole is reduced from the rear toward the front.
The method according to claim 1,
Wherein the gauge body and the support panel are formed with notch-shaped fixing head insertion grooves at corners thereof.

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