WO2009128170A1 - レードルクレーン - Google Patents
レードルクレーン Download PDFInfo
- Publication number
- WO2009128170A1 WO2009128170A1 PCT/JP2008/057632 JP2008057632W WO2009128170A1 WO 2009128170 A1 WO2009128170 A1 WO 2009128170A1 JP 2008057632 W JP2008057632 W JP 2008057632W WO 2009128170 A1 WO2009128170 A1 WO 2009128170A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- auxiliary
- ladle
- girder
- main
- trolley
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
- B66C17/10—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for transporting ladles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
Definitions
- the present invention relates to a ladle crane installed in an iron making facility or a steel making facility.
- Patent Document 1 Japanese Patent Laid-Open No. 11-268881
- the ladle crane disclosed in Patent Document 1 is configured such that both ends of the auxiliary girder on which the auxiliary trolley travels are directly connected (connected) to the substantially central portion of the end tie (bridge). Yes. Therefore, at the time of new installation or reassembly, first, the supplemental girder must be attached to the end tie, and then the supplemental trolley must be installed on the supplemental girder. The auxiliary trolley must be removed, and then the auxiliary girder must be removed from the end tie, resulting in a problem that the construction period at the time of new installation or reassembly, or the construction period at the time of disassembly is prolonged.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ladle crane that can shorten the construction period at the time of new installation or reassembly, or the construction period at the time of disassembly.
- a ladle crane includes a ladle suspended by a main winding hook of a main winding device installed on a main trolley traveling on a first traverse rail laid along two main girders. Tilt by the auxiliary winding hook of the auxiliary winding device installed on the auxiliary trolley that runs on the second traverse rail laid along the auxiliary girder of the book, and the molten metal stored in the ladle is poured out. It is a ladle crane, Comprising: The one end parts of the said supplement girder and the other end parts of the said supplement girder are each connected via the joint beam.
- one end part of one auxiliary girder and one end part of one joint beam are connected, and one end part of the other auxiliary girder and the other end part of one joint beam are connected.
- the other end of one auxiliary girder is connected to one end of the other joint beam, and the other end of the other auxiliary girder is connected to the other end of the other joint beam.
- the two supplementary girders and the two joint beams can be made into an integral structure, and the rigidity of the integral structure composed of these two supplementary girders and the two joint beams can be improved.
- the supplementary girder and two joint beams can be transported as a unitary structure. Thereby, the work period at the time of new installation or reassembly, or the work period at the time of dismantling can be shortened.
- the auxiliary girder, the joint beam, the auxiliary trolley, and the auxiliary winding hook are configured to be transportable as an integral structure. According to such a ladle crane, since the auxiliary girder, the joint beam, the auxiliary trolley, and the auxiliary winding hook can be transported as an integral structure, a construction period at the time of new installation or reassembly, or The construction period at the time of dismantling can be further shortened.
- the second traverse rail is disposed on a wall surface where one side and the other side of the auxiliary girder are opposed to each other.
- the second traverse rail is disposed below the upper surface of the supplemental girder, the height when the supplemental trolley is placed on the second traverse rail is increased. The vertical dimension can be reduced.
- the auxiliary trolley and the auxiliary winding device (including the auxiliary winding hook are included on the integrated structure including the two auxiliary girders and the two joint beams while the auxiliary trolley is placed on the second traversing rail. ) Can be transported while being mounted, and the construction period at the time of new installation or reassembly, or the construction period at the time of disassembly can be further shortened.
- a ladle crane assembling method includes a ladle suspended by a main winding hook of a main winding device installed on a main trolley traveling on a first traverse rail laid along two main girders. Is tilted by the auxiliary winding hook of the auxiliary winding device installed on the auxiliary trolley running on the second traverse rail laid along the two auxiliary girders, and the molten metal stored in the ladle is A method for assembling a ladle crane to be dispensed, wherein the auxiliary girder, the auxiliary trolley, the auxiliary winding hook, and one ends of the auxiliary girder are separated from each other at a location different from the assembly location where the ladle crane is assembled.
- FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.
- FIG. 4 is an enlarged view of a main part of FIG. 3, and is an enlarged view of a main part of a supplemental girder located on the left side in FIG. 3.
- FIG. 4 is an enlarged view of a main part of FIG. 3, and is an enlarged view of a main part of a supplement girder located on the right side in FIG. 3.
- FIG. 1 is a schematic configuration diagram of a ladle crane 100.
- a ladle crane (casting crane) 100 is a kind of overhead crane, and is installed in an iron making facility or a steel making facility. (Casting pan) After being put in and transported, the ladle 8 is tilted and used for the work of pouring the molten steel 8 into a tundish or a converter not shown.
- the ladle crane 100 handles a high-temperature material called molten steel 8, so that the ladle 8 is lifted by the main winding device 10 and the lower portion of the ladle 8 is lifted by the auxiliary winding device 11 so that the ladle 8 is inclined. Molten steel Fe is taken out from the pan 8.
- a main winding device 10 is provided on a first traverse rail 1a laid on a main girder 1 that travels along a travel lane 9 laid on the top of a building (not shown).
- the auxiliary trolley 3 including the auxiliary winding device 11 is installed on the main trolley 2 and the second traverse rail 1b laid on the auxiliary girder 1A (see FIGS. 2 to 4B).
- a crane with a heavy lifting load may have two hoisting mechanisms.
- the main winding mentioned above means that a heavy load is lifted at a slow speed, and the above-mentioned auxiliary winding means that a light load is fast. The one that is lifted.
- the main winding device 10 engages the main winding hook 5 with the shaft 8 a of the ladle 8 and suspends the ladle 8 through the wire 4.
- the auxiliary winding device 11 moves the auxiliary trolley 3 from the auxiliary winding hook 7 ⁇ / b> A suspended via the wire 6 to the ladle 8 and pulls it on the tilted metal 8 b provided on the side wall of the ladle 8. Multiply. Thereafter, the auxiliary winding device 11 tilts the ladle 8 around the axis 8a by pulling up the auxiliary winding hook 7A (see the two-dot chain line in the figure), and the molten steel (Fe) accommodated in the ladle 8 is removed. The hot water is poured into tundish.
- FIG. 2 is a plan view of the main part of the ladle crane 100 according to the present embodiment as viewed from above, and FIG. 3 is a cross-sectional view taken along the line AA in FIG. 4A and 4B are enlarged views of main parts of FIG.
- both ends of the two auxiliary girders 1 ⁇ / b> A are connected (connected) by the joint 12. That is, the two auxiliary girders 1A and the two joint beams 12 have an integral structure. In other words, the two auxiliary girders 1A and the two joint beams 12 are configured to be transported as an integral structure.
- an integral structure (hereinafter referred to as “complement girder block body”) B composed of two supplemental girders 1A and two joint beams 12 is composed of a lower surface of two joint beams 12 and two end ties 13. It is configured such that the upper girder block body B can be placed on the end tie 13 so that the upper surface located at the substantially central portion is in contact with (in contact with) the surface.
- both ends of the two main girders 1 are connected (connected) to both ends of the two end ties 13 via fixing means (for example, bolts and nuts), and are placed on the end ties 13.
- the supplemental girder block body B is connected (connected) to the end tie 13 via fixing means (for example, bolts and nuts).
- each of the auxiliary girders 1 ⁇ / b> A is configured such that its cross-sectional view has a right trapezoidal shape. That is, the side surface (the side surface where one complementary girder 1A and the other complementary girder 1A face each other) 14 (see FIGS. 4A and 4B) located inside each auxiliary girder 1A gradually approaches as it goes downward. It is inclined to. Further, as shown in FIGS. 4A and 4B, a pedestal 15 for supporting the second traverse rail 1b is provided at the lower part of the side surface 14, respectively. The pedestal 15 includes a horizontal plate 16 on which the rail 1b is laid on an upper surface thereof, and a rib 17 that supports the horizontal plate 16. Reference numeral 18 in FIGS. 4A and 4B denotes a wheel of the auxiliary trolley 3 that rolls on the second traverse rail 1b.
- the auxiliary girder 1A, the auxiliary trolley 3, the auxiliary winding hook 7A, and the joint beam 12 are assembled (or reassembled) the installation place where the ladle crane is installed.
- the auxiliary girder block body B can be installed at a predetermined place of installation by installation means (for example, a crane).
- one end of one auxiliary girder 1A and one end of one joint 12 are connected, and one end of the other supplement girder 1A and one other of the one joint 12 are connected.
- the other end of one supplemental girder 1A and one end of the other joint 12 are coupled to each other, and the other end of the other supplemental girder 1A and the other end of the other joint 12 are connected. Since the two parts are connected to each other, the two auxiliary girders 1A and the two joint beams 12 can be transported as the auxiliary girder block body B.
- the two supplementary girders 1A and the two joint beams 12 can be attached to the integrated structure composed of the two main girders 1 and the two end ties 13 as the supplemental girder block body B. Further, the two auxiliary girders 1A and the two joint beams 12 can be removed from the integrated structure including the two main girders 1 and the two end ties 13 as the auxiliary girder block body B. Thereby, the work period at the time of new installation or reassembly, or the work period at the time of dismantling can be shortened.
- the second traverse rail 1b is disposed below the upper surface of the supplemental girder 1A, that is, so as to be located below the supplemental girder 1A, the second traverse rail 1b is supplemented on the second traverse rail 1b.
- the dimension in the height direction when the trolley 3 is placed can be reduced. In the ladle crane 100 according to the present embodiment, what was conventionally about 5 m can be reduced to about 3.5 m.
- the auxiliary trolley 3 and the auxiliary winding are placed on the auxiliary girder block body B composed of the two auxiliary girders 1A and the two joints 12 while the auxiliary trolley 3 is placed on the second traverse rail 1b.
- the apparatus 11 (including the auxiliary winding hook 7A) can be transported while being placed, and the construction period at the time of new installation or reassembly, or the construction period at the time of disassembly can be further shortened.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
Description
本発明によるレードルクレーンは、二本の主ガーダに沿って敷設された第1の横行レール上を走行する主トロリ上に設置された主巻き装置の主巻きフックで吊り下げた溶鍋を、二本の補ガーダに沿って敷設された第2の横行レール上を走行する補トロリ上に設置された補巻き装置の補巻きフックにより傾転させ、前記溶鍋に収納された溶湯を注出させるレードルクレーンであって、前記補ガーダの一端部同士および前記補ガーダの他端部同士が、継梁を介してそれぞれ連結されている。
このようなレードルクレーンによれば、一方の補ガーダの一端部と一方の継梁の一端部とが連結され、他方の補ガーダの一端部と一方の継梁の他端部とが連結されるとともに、一方の補ガーダの他端部と他方の継梁の一端部とが連結され、他方の補ガーダの他端部と他方の継梁の他端部とが連結されているので、これら二本の補ガーダおよび二本の継梁を一体構造物とすることができ、これら二本の補ガーダおよび二本の継梁からなる一体構造物の剛性を向上させることができるとともに、これら二本の補ガーダおよび二本の継梁を一体構造物として運搬することができる。
これにより、新規据付時または再組立時における工期、あるいは解体時における工期を短縮することができる。
このようなレードルクレーンによれば、前記補ガーダ、前記継梁、前記補トロリ、および前記補巻きフックを、一体構造物として運搬することができるので、新規据付時または再組立時における工期、あるいは解体時における工期をさらに短縮することができる。
このようなレードルクレーンによれば、第2の横行レールが、補ガーダの上面よりも下方に位置するように配置されているので、第2の横行レール上に補トロリを載置した時の高さ方向の寸法を低減させることができる。
これにより、補トロリを第2の横行レール上に載せたまま、すなわち、二本の補ガーダおよび二本の継梁からなる一体構造物の上に補トロリおよび補巻き装置(補巻きフックを含む)を載せたまま運搬することができて、新規据付時または再組立時における工期、あるいは解体時における工期をさらに短縮することができる。
このようなレードルクレーンによれば、補ガーダ、継梁、補トロリ、および補巻きフックが、一体構造物として運搬され、据え付けられる(組み立てられる)こととなるので、新規据付時または再組立時における工期を短縮することができる。
1A 補ガーダ
1a 第1の横行レール
1b 第2の横行レール
2 主トロリ
3 補トロリ
5 主巻きフック
7A 補巻きフック
8 溶鍋
10 主巻き装置
11 補巻き装置
12 継梁
14 壁面
100 レードルクレーン
B 補ガーダブロック体(一体構造物)
Fe 溶湯
図1はレードルクレーン100の概略構成図である。図1に示すように、レードルクレーン(鋳鍋クレーン)100は、天井クレーンの一種であり、製鉄施設や製鋼施設に設置されて、図示しない平炉や電気炉等から溶鋼(溶湯)Feを溶鍋(鋳鍋)8に入れて運搬した後、溶鍋8を傾けて図示しないタンディッシュや転炉内に溶鋼8を注湯する作業などに用いられるものである。また、レードルクレーン100は、溶鋼8という高熱物を取扱うため、主巻き装置10で溶鍋8をつり上げるとともに、補巻き装置11で溶鍋8の下部を持ち上げて溶鍋8を傾斜をさせ、溶鍋8から溶鋼Feを出すようになっている。
まず、図2に示すように、二本の補ガーダ1Aの両端部はそれぞれ、継梁12によって連結(接続)されている。すなわち、二本の補ガーダ1Aと二本の継梁12とは、一体構造とされている。言い換えれば、これら二本の補ガーダ1Aおよび二本の継梁12は、一体構造物として運搬できるように構成されている。また、二本の補ガーダ1Aおよび二本の継梁12からなる一体構造物(以下、「補ガーダブロック体」という。)Bは、二本の継梁12の下面と二本のエンドタイ13の略中央部に位置する上面とがそれぞれ接する(面接触する)ように、すなわち、補ガーダブロック体Bをエンドタイ13上に載置できるように構成されている。
なお、二本の主ガーダ1の両端部はそれぞれ、固定手段(例えば、ボルトおよびナット)を介して二本のエンドタイ13の両端部に連結(接続)されており、エンドタイ13上に載置された補ガーダブロック体Bは、固定手段(例えば、ボルトおよびナット)を介してエンドタイ13に連結(接続)されている。
これにより、新規据付時または再組立時における工期、あるいは解体時における工期を短縮することができる。
Claims (4)
- 二本の主ガーダに沿って敷設された第1の横行レール上を走行する主トロリ上に設置された主巻き装置の主巻きフックで吊り下げた溶鍋を、二本の補ガーダに沿って敷設された第2の横行レール上を走行する補トロリ上に設置された補巻き装置の補巻きフックにより傾転させ、前記溶鍋に収納された溶湯を注出させるレードルクレーンであって、
前記補ガーダの一端部同士および前記補ガーダの他端部同士が、継梁を介してそれぞれ連結されていることを特徴とするレードルクレーン。 - 前記補ガーダ、前記継梁、前記補トロリ、および前記補巻きフックが、一体構造物として運搬可能に構成されていることを特徴とする請求項1に記載のレードルクレーン。
- 前記第2の横行レールが、前記補ガーダの一方と他方とが対向する壁面にそれぞれ配置されていることを特徴とする請求項1に記載のレードルクレーン。
- 二本の主ガーダに沿って敷設された第1の横行レール上を走行する主トロリ上に設置された主巻き装置の主巻きフックで吊り下げた溶鍋を、二本の補ガーダに沿って敷設された第2の横行レール上を走行する補トロリ上に設置された補巻き装置の補巻きフックにより傾転させ、前記溶鍋に収納された溶湯を注出させるレードルクレーンの組立方法であって、
前記レードルクレーンを組み立てる組立場所とは異なる別の場所で、前記補ガーダ、前記補トロリ、前記補巻きフック、および前記補ガーダの一端部同士および前記補ガーダの他端部同士を連結する継梁を一体構造物として組み立て、運搬手段により前記一体構造物を前記組立場所に搬入した後、据付手段により前記一体構造物を所定の場所に据え付けるようにしたことを特徴とするレードルクレーンの組立方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0822321A BRPI0822321A8 (pt) | 2008-04-18 | 2008-04-18 | grua de concha, e, método de montar uma grua de concha |
PCT/JP2008/057632 WO2009128170A1 (ja) | 2008-04-18 | 2008-04-18 | レードルクレーン |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2008/057632 WO2009128170A1 (ja) | 2008-04-18 | 2008-04-18 | レードルクレーン |
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WO2009128170A1 true WO2009128170A1 (ja) | 2009-10-22 |
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PCT/JP2008/057632 WO2009128170A1 (ja) | 2008-04-18 | 2008-04-18 | レードルクレーン |
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WO (1) | WO2009128170A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3315615A1 (en) * | 2016-10-28 | 2018-05-02 | Danieli Corus BV | Manipulator for a ladle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56115989A (en) * | 1980-02-18 | 1981-09-11 | Mitsubishi Heavy Ind Ltd | Crane beam fixing method in nuclear reactor container |
JPS6448797A (en) * | 1987-08-19 | 1989-02-23 | Hitachi Plant Eng & Constr Co | Method of transferring construction of crane |
JPH05162971A (ja) * | 1991-12-18 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | 天井クレーン |
JPH05246688A (ja) * | 1992-03-05 | 1993-09-24 | Hitachi Kiden Kogyo Ltd | 大型構造物反転用天井クレーン |
JPH0739917Y2 (ja) * | 1990-11-30 | 1995-09-13 | 住友重機械工業株式会社 | 全天候型船積設備 |
-
2008
- 2008-04-18 WO PCT/JP2008/057632 patent/WO2009128170A1/ja active Application Filing
- 2008-04-18 BR BRPI0822321A patent/BRPI0822321A8/pt not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56115989A (en) * | 1980-02-18 | 1981-09-11 | Mitsubishi Heavy Ind Ltd | Crane beam fixing method in nuclear reactor container |
JPS6448797A (en) * | 1987-08-19 | 1989-02-23 | Hitachi Plant Eng & Constr Co | Method of transferring construction of crane |
JPH0739917Y2 (ja) * | 1990-11-30 | 1995-09-13 | 住友重機械工業株式会社 | 全天候型船積設備 |
JPH05162971A (ja) * | 1991-12-18 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | 天井クレーン |
JPH05246688A (ja) * | 1992-03-05 | 1993-09-24 | Hitachi Kiden Kogyo Ltd | 大型構造物反転用天井クレーン |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3315615A1 (en) * | 2016-10-28 | 2018-05-02 | Danieli Corus BV | Manipulator for a ladle |
WO2018078020A1 (en) * | 2016-10-28 | 2018-05-03 | Danieli Corus B.V. | Manipulator for a ladle |
Also Published As
Publication number | Publication date |
---|---|
BRPI0822321A8 (pt) | 2015-09-22 |
BRPI0822321A2 (pt) | 2015-06-16 |
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