KR200482084Y1 - The centering measuring apparatus of ship's stern boss - Google Patents

The centering measuring apparatus of ship's stern boss Download PDF

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Publication number
KR200482084Y1
KR200482084Y1 KR2020150003973U KR20150003973U KR200482084Y1 KR 200482084 Y1 KR200482084 Y1 KR 200482084Y1 KR 2020150003973 U KR2020150003973 U KR 2020150003973U KR 20150003973 U KR20150003973 U KR 20150003973U KR 200482084 Y1 KR200482084 Y1 KR 200482084Y1
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KR
South Korea
Prior art keywords
stern boss
ship
measurement
main
centering
Prior art date
Application number
KR2020150003973U
Other languages
Korean (ko)
Inventor
이희근
김민중
김재빈
Original Assignee
대우조선해양 주식회사
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Priority to KR2020150003973U priority Critical patent/KR200482084Y1/en
Application granted granted Critical
Publication of KR200482084Y1 publication Critical patent/KR200482084Y1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/24Measuring arrangements characterised by the use of mechanical means for measuring angles or tapers; for testing alignment of axes
    • G01B5/25Measuring arrangements characterised by the use of mechanical means for measuring angles or tapers; for testing alignment of axes for testing the alignment of axes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H23/00Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32Other parts
    • B63H23/34Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/18Micrometers

Abstract

The present invention relates to an apparatus (100) for use in measuring stern boss centering of a ship, comprising: a body (110); A plurality of exchange rods (120) fastened to the body (110) in a cross shape for fastening to the inner surface of the stern boss; And a micrometer (130) rotatably mounted on the body (110) for centering measurement of the stern boss. According to the present invention, a high accuracy (0.01 mm) centering measurement with respect to the stern boss of a ship is possible and measurement and installation time can be shortened, thereby improving the reliability of the ship owner / shipper as well as improving the productivity .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a stern boss centering measurement apparatus for a ship,

The present invention relates to a stern boss centering measurement apparatus for a ship, and more particularly, to a stern boss centering measurement apparatus for a vessel capable of easily performing centering measurement of a stern boss of a ship.

In general, RUDDER HORN and STERN BOSS are the main components of the steering and propulsion system, and they are mainly cast and installed on the stern of the hull.

In this case, the rudder horn functions to fix and support a rudder as a steering device of a ship, and is directly connected to a rudder stock and a pintle in the form of forgings. The stern boss is a propelling device Propeller (PROPELLER) and propeller shaft (PROPELLER SHAFT), which is a power transmission device, are supported to enable the ship to hang up.

In addition, the stern boss is provided with a metal bearing on the inner circumferential surface thereof, and by firmly supporting the propeller shaft through the metal bearing, it is possible to reduce frictional force and eccentric displacement during rotation of the propeller shaft. Therefore, the inner circumferential surface of the stern boss has to be uniform in eccentricity in order to support the propeller shaft as well as the metal bearing.

1, the stern boss 10 is a hollow cylindrical structure provided at the stern portion of the hull, and serves to rotatably support a propeller shaft (not shown) 11 to be smoothly transmitted to the propeller.

On the other hand, there has been a problem that a measurement error is often caused by measurement of human sensitivity by measuring the alignment using a piano wire and an inter-centering jig when measuring an alignment such as a stern boss and a stern tube due to conventional ship drying, .

 That is, as shown in Fig. 2, four nuts are welded to the circular plate 20 (for example, 150 mm in diameter) at intervals of 90 degrees, holes (for example, 0.7 mm in diameter) are machined in the center of the circular plate 20 There is a problem that a measurement error is increased and the use is difficult and the measurement time is long because the measurement is made while measuring the tape measure 21 to fit the inner diameter center of the stern boss 10 by using four bolts. In FIG. 2, reference numeral '30' denotes a support bar for fixing to the inner surface of the stern boss 10.

As a patent related technology in the related art, a laser oscillator is installed at the center of a stern of a stern boss, and a shaft fixing jig is installed at a forward portion of the stern boss. Then, the center of the shaft fixing jig is set using a micrometer, And then irradiating the laser oscillator using a radius measuring device. By repeating the above process, axial alignment is performed between the forward portion of the stern boss and the stern portion by laser irradiation, And the eccentricity is measured by measuring the radius over the whole area of the inner circumferential surface of the stern boss at the completion of alignment of the axial bore, (see Patent Document 1).

Korean Patent Laid-Open No. 10-2011-0028739

It is an object of the present invention to provide a stern boss centering measurement apparatus for a vessel capable of performing a high precision centering measurement on a stern boss of a ship and shortening the measurement and installation time .

According to an aspect of the present invention, there is provided an apparatus for measuring a stern boss centering of a ship, the apparatus comprising: a main body; A plurality of exchange rods fastened to the main body in a cross shape for fastening to the inner surface of the stern boss; A micrometer rotatably mounted on the body for centering measurement of the stern boss; And a circular bubble tube installed on the main body for leveling operation of the apparatus.

In this case, the main body may be provided with connecting rods at intervals of 90 [deg.] Along the outer circumference for fastening the exchange rods.

The main body may be provided with a bearing attachment for rotation of the micrometer.

In addition, the micrometer may be installed on both sides of the main body.

delete

According to the present invention, a high accuracy (0.01 mm) centering measurement can be performed with respect to the stern boss of a ship, and the measurement and installation time can be shortened, thereby improving the reliability of the shipper / .

1 is a conceptual view showing an installation site of a ship stern boss;
FIG. 2 is a conceptual diagram of a centering measurement of a conventional marine stern boss; FIG.
3 is a block diagram of a stern boss centering measurement apparatus according to the present invention.
Fig. 4 is a detailed configuration diagram of an exchange bar according to the present invention. Fig.
5 is a detailed configuration diagram of a bearing attachment according to the present invention;
6 is a view showing the state of use of the stern boss centering measurement apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a schematic view of a stern boss centering measurement apparatus according to the present invention, FIG. 4 is a detailed view of the swivel rod according to the present invention, FIG. 5 is a detailed view of a bearing attachment according to the present invention, Of the stern boss centering measurement apparatus according to the present invention.

According to the present invention, the stern boss centering measurement apparatus of a ship is designed to enable a high precision centering measurement with respect to a stern boss of a ship, and to shorten the measurement and installation time.

As shown in the drawing, the stern boss centering measurement apparatus 100 according to the present invention is useful for measuring stern boss centering of a ship. The apparatus includes a main body 110, an exchange bar 120, A micrometer 130, and a circular bubble tube 140. The micrometer 130 is a circular bubble tube.

The main body 110 is circular, and four connecting rods 111 are installed at intervals of 90 degrees along the outer circumference thereof for fastening the exchange rods 120. The main body 110 is provided with a bearing attachment 112 for rotating the micrometer 130 installed in the main body 110.

The exchange bar 120 has a predetermined length and is fastened to the connecting rod 111 of the main body 110 in a cross shape to fix the measuring device 100 to the inner surface of the stern boss 10. The exchange rods 120 can be freely exchanged in accordance with the diameters of the stern bosses 10.

The micrometer (130: Micrometer) is a measuring instrument capable of accurately measuring a length up to 0.01 mm, and is installed to be rotatable with respect to the main body 110 for centering measurement of the stern boss 10. At this time, the micrometer 130 may be installed on both sides of the main body 110 for measurement efficiency.

The leveling head level is installed on the main body 110. The leveling head 140 is installed on the main body 110 so that the leveling operation of the measuring apparatus 100, .

Hereinafter, the operation of the stern boss centering measurement apparatus 100 according to the present invention will be described.

The measurement apparatus 100 of the present invention is fixed to the inner surface of the stern boss 10 by using the exchange rods 120. [ The centering and roundness of the stern boss 10 can be accurately measured while the micrometer 130 is rotated.

As described above, it is possible to perform the centering measurement with high accuracy (0.01 mm) using the micrometer 130 with respect to the stern boss of the ship, and shorten the measurement and installation time.

Although the stern boss centering measurement apparatus according to the present invention has been described with reference to a limited number of embodiments, the scope of the present invention is not limited to the specific embodiment, and it is obvious to those skilled in the art And various alternatives, modifications, and alterations can be made within the scope.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

100: Measuring device 110:
111: connecting rod 112: bearing attachment
120: exchange bar 130: micrometer
140: Circular bubble tube

Claims (5)

  1. A device (100) for use in measuring a stern boss centering of a ship,
    A body 110;
    A plurality of exchange rods (120) fastened to the body (110) in a cross shape for fastening to the inner surface of the stern boss;
    A micrometer (130) rotatably mounted on the main body (110) for centering measurement of the stern boss;
    And a circular bubble pipe (140) installed on the main body (110) for leveling operation of the apparatus.
  2. The method according to claim 1,
    Wherein a connecting rod (111) is installed on the main body (110) at intervals of 90 degrees along the outer circumference for fastening the exchange rods (120).
  3. The method according to claim 1,
    Wherein the main body (110) is provided with a bearing attachment (112) for rotating the micrometer (130).
  4. The method according to claim 1,
    Wherein the micrometer (130) is installed on both sides of the main body (110).
  5. delete
KR2020150003973U 2015-06-17 2015-06-17 The centering measuring apparatus of ship's stern boss KR200482084Y1 (en)

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Application Number Priority Date Filing Date Title
KR2020150003973U KR200482084Y1 (en) 2015-06-17 2015-06-17 The centering measuring apparatus of ship's stern boss

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Application Number Priority Date Filing Date Title
KR2020150003973U KR200482084Y1 (en) 2015-06-17 2015-06-17 The centering measuring apparatus of ship's stern boss

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KR200482084Y1 true KR200482084Y1 (en) 2016-12-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101955416B1 (en) 2017-12-04 2019-03-08 주식회사 대불조선 Shaft and rudder work platform that can move upwards and sideways using heavy equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960309A (en) * 1982-09-30 1984-04-06 Toshiba Corp Centering device
KR20110028739A (en) 2009-09-14 2011-03-22 대우조선해양 주식회사 Method for measuring eccentricity of stern boss
KR101325860B1 (en) * 2011-10-14 2013-11-05 주식회사 현대미포조선 Apparatus for making seal hole in the stern boss of ship
JP2015506473A (en) * 2011-12-29 2015-03-02 ヴァルレック オイル アンド ガスフランス Device for measuring the internal or external contour of tubular components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960309A (en) * 1982-09-30 1984-04-06 Toshiba Corp Centering device
KR20110028739A (en) 2009-09-14 2011-03-22 대우조선해양 주식회사 Method for measuring eccentricity of stern boss
KR101325860B1 (en) * 2011-10-14 2013-11-05 주식회사 현대미포조선 Apparatus for making seal hole in the stern boss of ship
JP2015506473A (en) * 2011-12-29 2015-03-02 ヴァルレック オイル アンド ガスフランス Device for measuring the internal or external contour of tubular components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101955416B1 (en) 2017-12-04 2019-03-08 주식회사 대불조선 Shaft and rudder work platform that can move upwards and sideways using heavy equipment

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