JPS6145591B2 - - Google Patents
Info
- Publication number
- JPS6145591B2 JPS6145591B2 JP56018270A JP1827081A JPS6145591B2 JP S6145591 B2 JPS6145591 B2 JP S6145591B2 JP 56018270 A JP56018270 A JP 56018270A JP 1827081 A JP1827081 A JP 1827081A JP S6145591 B2 JPS6145591 B2 JP S6145591B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- ring
- rotating ring
- lower half
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 230000002265 prevention Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
Description
【発明の詳細な説明】
本発明は、半没水型双胴船におけるロワーハー
ルのごとき円筒状構造物を製作するための方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cylindrical structure such as a lower hull in a semi-submersible catamaran.
一般に、半没水型双胴船のロワーハルについて
は、これを軽量構造とするため薄板により組立て
ることが望ましいが、薄板を用いて横割方式によ
りロワーハルを製作すると、横助骨部に溶接歪を
生じるという問題点がある。 Generally speaking, it is desirable to assemble the lower hull of a semi-submersible catamaran using thin plates in order to achieve a lightweight structure, but if the lower hull is manufactured using the horizontal splitting method using thin plates, welding distortion will occur in the side ribs. There is a problem.
そこで縦割方式により２個の半円筒を組合わせ
て円筒状構造物を製作することが考えられるが、
単なる縦割方式では、円筒状構造物内のウエツブ
リングや、その他の内部取付材の溶接部などにつ
いて、下向き溶接のみで主要の結合作業を行なう
ことができなくなるという問題点がある。 Therefore, it is possible to create a cylindrical structure by combining two semi-cylinders using the vertical splitting method.
A simple vertical splitting method has the problem that the main connection work cannot be performed only by downward welding, such as the webbing in the cylindrical structure and the welded parts of other internally attached materials.
本発明は、これらの問題点の解決をはかり、作
業性を向上させて、能率よく十分な精度で円筒状
構造物を製作できるようにした方法を提供するこ
とを目的とする。 It is an object of the present invention to provide a method that solves these problems, improves workability, and makes it possible to manufacture cylindrical structures efficiently and with sufficient precision.
このため本発明の方法は、下部半円筒に上部半
円筒を結合して円筒状構造物を製作するに際し、
２個以上の回転リング駆動機構のそれぞれの上に
回転リング下半部を搭載するとともに、これらの
回転リング下半部に上記下部半円筒を仮付けし、
ついで上記回転リング下半部と整合する位置で上
記下部半円筒の内側にウエツブリングを立て仮付
けしてから、上記の下部半円筒とウエツブリング
とに上記上部半円筒を仮付けし、この上部半円筒
の外周に、上記回転リング下半部と結合する回転
リング上半部を仮付けしたのち、上記の回転リン
グ下半部と回転リング上半部とで形成された回転
リングを上記回転リング駆動機構で回転させるこ
とにより、この回転リングと一体に上記の下部半
円筒および上部半円筒ならびにウエツブリングの
相互の各仮付け部分を回転させて、その本溶接を
下向き溶接により行なうことを特徴としている。 Therefore, in the method of the present invention, when manufacturing a cylindrical structure by joining an upper half cylinder to a lower half cylinder,
A lower half of the rotating ring is mounted on each of the two or more rotating ring drive mechanisms, and the lower half cylinder is temporarily attached to the lower half of the rotating ring,
Next, temporarily attach the web ring to the inside of the lower semi-cylinder at a position that aligns with the lower half of the rotary ring, then temporarily attach the upper semi-cylinder to the lower semi-cylinder and the web ring. After temporarily attaching the upper half of the rotating ring to be combined with the lower half of the rotating ring to the outer periphery of the semi-cylindrical cylinder, the rotating ring formed by the lower half of the rotating ring and the upper half of the rotating ring is attached to the rotating ring. The main welding is performed by downward welding by rotating the rotating ring with a drive mechanism, thereby rotating the lower half cylinder, the upper half cylinder, and the mutually tacking parts of the web ring together with the rotating ring. There is.
以下、図面により、本発明の一実施例としての
半没水型双胴船における円筒状構造物としてのロ
ワーハル中央部の製作方法について説明すると、
第１図ａ，ｂ，ｃ，ｄは上記ロワーハル中央部を
製作する際の各工程の概略を示す説明図であり、
第２図は上記ロワーハル中央部における上部半円
筒の取付工程を示す斜視図、第３図は上記ロワー
ハル中央部の製作に用いられる回転リングの正面
図、第４図および第５図はそれぞれ第３図の−
線および−線に沿う断面図である。 Hereinafter, with reference to the drawings, a method for manufacturing the center portion of the lower hull as a cylindrical structure in a semi-submersible catamaran as an embodiment of the present invention will be explained.
FIGS. 1a, b, c, and d are explanatory diagrams showing the outline of each process when manufacturing the central part of the lower hull,
Fig. 2 is a perspective view showing the installation process of the upper semi-cylinder in the center of the lower hull, Fig. 3 is a front view of the rotating ring used in manufacturing the center of the lower hull, and Figs. Figure -
FIG.
第１図ａに示すように複数の平板１を溶接によ
り継ぎ合わせて所要の大きさにしてから、これを
第１図ｂに示すごとく曲げ加工して半円筒を作
る。このような半円筒を２個作り、これらを下部
半円筒２ａおよび上部半円筒２ｂとして、相互に
継ぎ合わせて円筒状構造物を形成するに際し、本
発明の方法では、まず第１図ｃに示すように、２
個以上の回転リング駆動機構３，３のそれぞれの
上に回転リング下半部４ａを搭載するとともに、
これらの回転リング下半部４ａ，４ａに下部半円
筒２ａを仮付けする。ついで、各回転リング下半
部４ａと整合する位置で下部半円筒２ａの内側に
ウエツブリング５を立て仮付けする。またタンク
６や補機台７のごとき内部取付材も下部半円筒２
ａの内側に搭載して仮付けする。その後、第２図
に示すごとく上部半円筒２ｂを下部半円筒２ａと
ウエツブリング５とに仮付けし、この上部半円筒
２ｂの外周に、第１図ｄに示すように、回転リン
グ下半部４ａと結合する回転リング上半部４ｂを
仮付けする。 As shown in FIG. 1a, a plurality of flat plates 1 are joined together by welding to a desired size, and then bent as shown in FIG. 1b to form a semi-cylinder. When making two such semi-cylinders and joining them together as a lower half-cylinder 2a and an upper half-cylinder 2b to form a cylindrical structure, in the method of the present invention, first, the steps shown in FIG. 1c are carried out. Like, 2
A rotary ring lower half 4a is mounted on each of the rotary ring drive mechanisms 3, 3 or more, and
The lower semi-cylindrical cylinder 2a is temporarily attached to the lower half parts 4a, 4a of these rotating rings. Next, the web ring 5 is erected and temporarily attached inside the lower half cylinder 2a at a position aligned with the lower half part 4a of each rotary ring. In addition, internal mounting materials such as the tank 6 and auxiliary machine stand 7 are also attached to the lower half cylinder 2.
Mount it on the inside of a and temporarily attach it. Thereafter, as shown in FIG. 2, the upper semi-cylinder 2b is temporarily attached to the lower semi-cylinder 2a and the web ring 5, and the lower half of the rotary ring is attached to the outer periphery of the upper semi-cylinder 2b, as shown in FIG. 1d. The upper half portion 4b of the rotating ring to be combined with the rotating ring 4a is temporarily attached.
そして、下部半円筒２ａおよび上部半円筒２ｂ
に、要すれば歪防止材８が仮付けされる。なお、
第１図ｄおよび第２図における符号９は、ウエツ
ブリング位置決め用平鋼を示している。 Then, the lower half cylinder 2a and the upper half cylinder 2b
If necessary, a strain prevention material 8 is temporarily attached. In addition,
The reference numeral 9 in FIGS. 1d and 2 indicates a flat bar for positioning the webbing ring.
第３，４図に示すように回転リング下半部４ａ
と回転リング上半部４ｂとは、ボルト孔１０に挿
通される締付ボルト１１で結合されるようになつ
ており、その断面は第４，５図に示すごとくＨ型
になつている。 As shown in Figures 3 and 4, the lower half of the rotating ring 4a
and the rotating ring upper half 4b are connected by a tightening bolt 11 inserted through a bolt hole 10, and the cross section thereof is H-shaped as shown in FIGS. 4 and 5.
上述のごとく回転リング下半部４ａと回転リン
グ上半部４ｂとで形成された回転リング４を、第
１図ｄに示すように、回転リング駆動機構３で回
転させることにより、この回転リング４と一体に
下部半円筒２ａおよび上部半円筒２ｂならびにウ
エツブリング５の相互の各仮付け部分を回転させ
ながら、その本溶接を下向き溶接により行なうよ
うにする。 As shown in FIG. 1d, the rotating ring 4 formed by the rotating ring lower half 4a and the rotating ring upper half 4b as described above is rotated by the rotating ring drive mechanism 3. The main welding is performed by downward welding while rotating the mutually temporarily attached portions of the lower half cylinder 2a, the upper half cylinder 2b, and the webbing ring 5 together.
その際、タンク６や補機台７等の内部取付材に
ついても、各仮付け部分の本溶接が下向き溶接に
より行なわれる。 At this time, the main welding of each temporary attachment part of the internally attached members such as the tank 6 and the auxiliary machine stand 7 is also performed by downward welding.
このようにして、ロワーハルとしての円筒状構
造物２が構成されたのち、回転リング４および歪
防止材８は除去される。 After the cylindrical structure 2 as the lower hull is constructed in this way, the rotating ring 4 and the strain prevention material 8 are removed.
上述の本発明の円筒状構造物の製作方法によれ
ば、回転リング駆動機構２により円筒状構造物２
の回転が、その内部のウエツブリング５の存在す
る位置に設けられた回転リング４を介して行なわ
れるので、回転リング４，４以外の位置で下部半
円筒２ａおよび上部半円筒２ｂの外面に歪防止材
８を取付けうることと相まつて、各半円筒２ａ，
２ｂが薄板の場合でも、十分な強度で作業を行な
える利点がある。 According to the method for manufacturing a cylindrical structure of the present invention described above, the cylindrical structure 2 is moved by the rotating ring drive mechanism 2.
is rotated via the rotating ring 4 provided in the position where the web ring 5 exists, so that no distortion occurs on the outer surfaces of the lower semi-cylinder 2a and the upper semi-cylinder 2b at positions other than the rotating rings 4, 4. In addition to being able to attach the prevention material 8, each semi-cylinder 2a,
Even if 2b is a thin plate, there is an advantage that the work can be performed with sufficient strength.
そして、回転リング４で押え込むことにより、
円筒状構造物２の真円度を確保することができ
る。 Then, by pressing with the rotating ring 4,
The roundness of the cylindrical structure 2 can be ensured.
また、円筒状構造物２の各部における仮付け部
分が、下向き溶接により本溶接されるので、作業
性が向上し、十分な品質が確保されるのである。 Further, since the temporary welding portions of each part of the cylindrical structure 2 are actually welded by downward welding, workability is improved and sufficient quality is ensured.
以上詳述したように、本発明の円筒状構造物の
製作方法によれば、縦割方式に基づく下部半円筒
および上部半円筒の結合が、薄板素材を用いる場
合でも十分な精度で能率よく行なえるようにな
り、しかも各仮付け部分の本溶接が下向き溶接に
より確実に行なわれて、高い品質を得られる効果
がある。 As detailed above, according to the method for manufacturing a cylindrical structure of the present invention, the lower half cylinder and the upper half cylinder can be connected efficiently with sufficient precision even when using a thin plate material based on the vertical division method. Moreover, the main welding of each tacked part is reliably performed by downward welding, which has the effect of obtaining high quality.
図は本発明により半没水型双胴船におけるロワ
ーハルとしての円筒状構造物の製作方法を示すも
ので、第１図ａ，ｂ，ｃ，ｄは上記ロワーハル中
央部を製作する際の各工程の概略を示す説明図で
あり、第２図は上記ロワーハル中央部における上
部半円筒の取付工程を示す斜視図、第３図は上記
ロワーハル中央部の製作に用いられる回転リング
の正面図、第４図および第５図はそれぞれ第３図
の−線および−線に沿う断面図である。
１……平板、２……円筒状構造物、２ａ……下
部半円筒、２ｂ……上部半円筒、３……回転リン
グ駆動機構、４……回転リング、４ａ……回転リ
ング下半部、５……ウエツブリング、６……タン
ク、７……補機台、８……歪防止材、９……ウエ
ツブリング位置決め用平鋼、１０……ボルト孔、
１１……締付ボルト。
The figure shows a method of manufacturing a cylindrical structure as a lower hull in a semi-submersible catamaran according to the present invention. FIG. 2 is a perspective view showing the installation process of the upper half cylinder in the center of the lower hull, FIG. 3 is a front view of the rotating ring used for manufacturing the center of the lower hull, and FIG. 5 and 5 are cross-sectional views taken along lines - and - in FIG. 3, respectively. DESCRIPTION OF SYMBOLS 1... Flat plate, 2... Cylindrical structure, 2a... Lower half cylinder, 2b... Upper semi cylinder, 3... Rotating ring drive mechanism, 4... Rotating ring, 4a... Lower half of rotating ring, 5... Wet ring, 6... Tank, 7... Auxiliary machine stand, 8... Distortion prevention material, 9... Flat steel for positioning wet ring, 10... Bolt hole,
11...Tightening bolt.
Claims (1)
造物を製作するに際し、２個以上の回転リング駆
動機構のそれぞれの上に回転リング下半部を搭載
するとともに、これらの回転リング下半部に上記
下部半円筒を仮付けし、ついで上記回転リング下
半部と整合する位置で上記下部半円筒の内側にウ
エツブリングを立て仮付けしてから、上記の下部
半円筒とウエツブリングとに上記上部半円筒を仮
付けし、この上部半円筒の外周に、上記回転リン
グ下半部と結合する回転リング上半部を仮付けし
たのち、上記の回転リング下半部と回転リング上
半部とで形成された回転リングを上記回転リング
駆動機構で回転させることにより、この回転リン
グと一体に上記の下部半円筒および上部半円筒な
らびにウエツブリングの相互の各仮付け部分を回
転させて、その本溶接を下向き溶接により行なう
ことを特徴とする、円筒状構造物の製作方法。1. When manufacturing a cylindrical structure by joining an upper half cylinder to a lower half cylinder, a lower half of the rotating ring is mounted on each of two or more rotating ring drive mechanisms, and the lower half of these rotating rings is Temporarily attach the lower semi-cylinder to the lower half of the rotary ring, then temporarily attach the web ring to the inside of the lower semi-cylinder at a position that aligns with the lower half of the rotary ring, and then attach the web ring to the lower semi-cylinder and the web ring. After temporarily attaching the upper half cylinder, and temporarily attaching the upper half of the rotating ring to be combined with the lower half of the rotating ring to the outer periphery of the upper half cylinder, the lower half of the rotating ring and the upper half of the rotating ring are attached. By rotating the rotating ring formed by the rotating ring with the rotating ring drive mechanism, the lower half cylinder, the upper half cylinder, and the mutually temporarily attached parts of the web ring are rotated integrally with the rotating ring. A method for manufacturing a cylindrical structure, characterized in that main welding is performed by downward welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018270A JPS57134378A (en) | 1981-02-10 | 1981-02-10 | Production method of cylindrical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018270A JPS57134378A (en) | 1981-02-10 | 1981-02-10 | Production method of cylindrical structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57134378A JPS57134378A (en) | 1982-08-19 |
| JPS6145591B2 true JPS6145591B2 (en) | 1986-10-08 |
Family
ID=11966958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56018270A Granted JPS57134378A (en) | 1981-02-10 | 1981-02-10 | Production method of cylindrical structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134378A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898623A (en) * | 2010-04-08 | 2010-12-01 | 浙江海洋学院 | Ship body segment carrying and locating device |
| CN110254623B (en) * | 2019-06-28 | 2021-08-20 | 中船黄埔文冲船舶有限公司 | Manufacturing method of submerged body segment |
| KR102472054B1 (en) * | 2020-12-24 | 2022-11-29 | 에스케이실트론 주식회사 | A hopper, a method and a system for supply a raw material |
-
1981
- 1981-02-10 JP JP56018270A patent/JPS57134378A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57134378A (en) | 1982-08-19 |
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