JP2019142640A - Portal crane - Google Patents

Portal crane Download PDF

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JP2019142640A
JP2019142640A JP2018027465A JP2018027465A JP2019142640A JP 2019142640 A JP2019142640 A JP 2019142640A JP 2018027465 A JP2018027465 A JP 2018027465A JP 2018027465 A JP2018027465 A JP 2018027465A JP 2019142640 A JP2019142640 A JP 2019142640A
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auxiliary
main
trolley
rack
pinion
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JP7127993B2 (en
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宏明 田畑
Hiroaki Tabata
宏明 田畑
田中　良典
Yoshinori Tanaka
良典 田中
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IHI Transport Machinery Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters

Abstract

To provide a portal crane capable of performing smooth operation while eliminating the slippage of a trolley in the traverse direction.SOLUTION: A main rack 130A and an auxiliary rack 130B are laid as a rack 130 on a girder 30 so as to extend in the longitudinal direction. A main pinion 140A and an auxiliary pinion 140B serving as a pinion 140 are meshed with the main rack 130A and the auxiliary rack 130B. The main pinion 140A is rotatably driven by a main traverse driving device 80A serving as a traverse driving device 80 mounted on a main trolley 60A. The auxiliary pinion 140B is rotatably driven by an auxiliary traverse driving device 80B serving as the traverse driving device 80 mounted on an auxiliary trolley 60B.SELECTED DRAWING: Figure 1

Description

本発明は、門型クレーンに関するものである。   The present invention relates to a portal crane.

一般に、船舶、或いはセミサブマーシブル（Semi-Submersible）等の浮体構造物を建造するドックには、該ドックを跨ぐようにゴライアスクレーン等の門型クレーンが配置されている。   Generally, a gate crane such as a Goliath crane is disposed on a dock for building a floating structure such as a ship or a semi-submersible so as to straddle the dock.

図４及び図５に示される如く、門型クレーン１０は、ドックＤの幅方向へ所要間隔をあけて立設される脚部２０と、該脚部２０の上端部間に掛け渡すように設けられ且つ水平方向へ延びるガーダ３０とを備えている。前記脚部２０の下端には、走行レール４０に沿って転動自在な複数個の走行車輪５１を有する走行装置５０が設けられている。   As shown in FIGS. 4 and 5, the portal crane 10 is provided so as to span between a leg portion 20 standing at a required interval in the width direction of the dock D and an upper end portion of the leg portion 20. And a girder 30 extending in the horizontal direction. A traveling device 50 having a plurality of traveling wheels 51 that can roll along the traveling rail 40 is provided at the lower end of the leg portion 20.

前記ガーダ３０上には、トロリ６０としての主トロリ６０Ａが主横行レール７０Ａ（横行レール７０）に沿って主横行車輪８１Ａ（横行車輪８１）により横行自在に配設され、該主トロリ６０Ａに搭載された主ウインチドラム９０Ａから主ワイヤロープ９１Ａが巻上・巻下自在に繰り出され、該主ワイヤロープ９１Ａにより主吊ブラケット１００Ａが昇降自在に吊り下げられている。   On the girder 30, a main trolley 60A as a trolley 60 is disposed so as to be traversable by a main traversing wheel 81A (traversing wheel 81) along a main traversing rail 70A (traversing rail 70) and mounted on the main trolley 60A. The main wire rope 91A is unwound from the main winch drum 90A so as to be freely wound and unwound, and the main suspension bracket 100A is suspended by the main wire rope 91A so as to be movable up and down.

前記ガーダ３０の下面側には、トロリ６０としての補助トロリ６０Ｂが補助横行レール７０Ｂ（横行レール７０）に沿って補助横行車輪８１Ｂ（横行車輪８１）により横行自在に配設され、該補助トロリ６０Ｂに搭載された補助ウインチドラム９０Ｂから補助ワイヤロープ９１Ｂが巻上・巻下自在に繰り出され、該補助ワイヤロープ９１Ｂにより補助吊ブラケット１００Ｂが昇降自在に吊り下げられている。   On the lower surface side of the girder 30, an auxiliary trolley 60B as a trolley 60 is disposed along an auxiliary traverse rail 70B (transverse rail 70) so as to be traversable by an auxiliary traverse wheel 81B (transverse wheel 81). The auxiliary wire rope 91B is unwound from the auxiliary winch drum 90B mounted on the upper and lower sides of the auxiliary winch drum 90B, and the auxiliary suspension bracket 100B is suspended by the auxiliary wire rope 91B so as to be movable up and down.

前記門型クレーン１０の主トロリ６０Ａには、図５に示される如く、ガーダ３０の走行方向に斜め下方へ張り出す支持フレーム１１０Ａが取り付けられ、該支持フレーム１１０Ａの先端に運転室１２０Ａが設けられている。   As shown in FIG. 5, a support frame 110A that projects obliquely downward in the traveling direction of the girder 30 is attached to the main trolley 60A of the portal crane 10, and a cab 120A is provided at the tip of the support frame 110A. ing.

そして、図４に示される如く、船舶や浮体構造物の大型部品Ｌは、工場における作業のしやすさから天地逆に製造されることがあり、このような大型部品ＬをドックＤで船舶や浮体構造物に組み付ける際には、前記主トロリ６０Ａと補助トロリ６０Ｂとを利用して大型部品Ｌを吊り下げ、上下反転させることが行われる。   Then, as shown in FIG. 4, large parts L of ships and floating structures may be manufactured upside down due to the ease of work in the factory. When assembling to the floating structure, the large part L is suspended and turned upside down using the main trolley 60A and the auxiliary trolley 60B.

尚、前記ゴライアスクレーン等の門型クレーンと関連する一般的技術水準を示すものとしては、例えば、特許文献１がある。   For example, Patent Document 1 shows a general technical level related to a portal crane such as the Goliath crane.

特開２０１５−１２４０５３号公報Japanese Unexamined Patent Application Publication No. 2015-124053

前述のように、大型部品Ｌを上下反転させる作業を行う際には、主トロリ６０Ａと補助トロリ６０Ｂとで大型部品Ｌを吊り下げつつ、主トロリ６０Ａと補助トロリ６０Ｂとを互いに離反する方向へ移動させることも必要となる。   As described above, when performing the work of turning the large component L upside down, the main trolley 60A and the auxiliary trolley 60B are separated from each other while the large component L is suspended by the main trolley 60A and the auxiliary trolley 60B. It is also necessary to move it.

しかしながら、従来の門型クレーン１０の場合、主トロリ６０Ａや補助トロリ６０Ｂは、ガーダ３０に敷設された主横行レール７０Ａや補助横行レール７０Ｂに沿って主横行車輪８１Ａや補助横行車輪８１Ｂを転動させる構造が採用されているため、大型部品Ｌの上下反転作業時には、主横行レール７０Ａや補助横行レール７０Ｂと主横行車輪８１Ａや補助横行車輪８１Ｂとの摩擦力のみに依存せざるを得ず、滑りが生じる可能性があり、改善が望まれていた。   However, in the case of the conventional portal crane 10, the main trolley 60A and the auxiliary trolley 60B roll the main traversing wheel 81A and the auxiliary traversing wheel 81B along the main traversing rail 70A and the auxiliary traversing rail 70B laid on the girder 30. Since the structure to be adopted is adopted, during the upside down operation of the large part L, it is necessary to depend only on the frictional force between the main traversing rail 70A or the auxiliary traversing rail 70B and the main traversing wheel 81A or the auxiliary traversing wheel 81B. There was a possibility of slipping, and an improvement was desired.

本発明は、上記従来の問題点に鑑みてなしたもので、横行方向へのトロリの滑りをなくすことができ、円滑な作業を行い得る門型クレーンを提供しようとするものである。   The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a portal crane that can eliminate slippage of the trolley in the transverse direction and can perform a smooth operation.

上記目的を達成するために、本発明の門型クレーンは、走行レールに沿って走行自在となるよう所要間隔をあけて立設される脚部と、
該脚部の上端部間に掛け渡すように設けられ且つ水平方向へ延びるガーダと、
前記ガーダに横行レールに沿って横行自在となるよう配設されるトロリと、
前記ガーダにその長手方向へ延びるよう敷設されるラックと、
前記トロリに搭載される横行駆動装置によって回転駆動され且つ前記ラックに噛合するピニオンと
を備えることができる。 In order to achieve the above object, the portal crane of the present invention includes legs that are erected at a required interval so as to be able to travel along the traveling rail;
A girder provided to extend between the upper ends of the legs and extending in the horizontal direction;
A trolley disposed on the girder so as to be traversable along a traversing rail;
A rack laid to extend in the longitudinal direction of the girder;
And a pinion that is rotationally driven by a traverse drive device mounted on the trolley and meshes with the rack.

前記門型クレーンにおいて、前記トロリは、主トロリと、補助トロリとを有し、
前記ラックは、主ラックと、補助ラックとを有し、
前記ピニオンは、前記主トロリに搭載される主横行駆動装置によって回転駆動され且つ前記主ラックに噛合する主ピニオンと、前記補助トロリに搭載される補助横行駆動装置によって回転駆動され且つ前記補助ラックに噛合する補助ピニオンとを有することができる。 In the portal crane, the trolley has a main trolley and an auxiliary trolley,
The rack has a main rack and an auxiliary rack,
The pinion is rotationally driven by a main traverse drive device mounted on the main trolley and meshed with the main rack, and is rotationally driven by an auxiliary traverse drive device mounted on the auxiliary trolley and connected to the auxiliary rack. It can have an auxiliary pinion that meshes.

本発明の門型クレーンによれば、横行方向へのトロリの滑りをなくすことができ、円滑な作業を行い得るという優れた効果を奏し得る。   According to the portal crane of the present invention, slipping of the trolley in the transverse direction can be eliminated, and an excellent effect that smooth work can be performed can be achieved.

本発明の門型クレーンの実施例を示す要部側面図である。It is a principal part side view which shows the Example of the portal crane of this invention. 図１のＩＩ部拡大図である。It is the II section enlarged view of FIG. 図１のＩＩＩ部拡大図である。It is the III section enlarged view of FIG. 一般的なゴライアスクレーン等の門型クレーンを示す全体正面図である。It is a whole front view which shows portal cranes, such as a common Goliath crane. 一般的なゴライアスクレーン等の門型クレーンを示す全体側面図である。It is a whole side view showing portal cranes, such as a general Goliath crane.

以下、本発明の実施の形態を添付図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１〜図３は本発明の門型クレーンの実施例であって、図中、図４及び図５と同一の符号を付した部分は同一物を表わしている。   1 to 3 show an embodiment of a portal crane according to the present invention. In the figure, the same reference numerals as those in FIGS. 4 and 5 denote the same parts.

本実施例の場合、ガーダ３０に、その長手方向へ延びるようラック１３０としての主ラック１３０Ａと補助ラック１３０Ｂとを敷設し、該主ラック１３０Ａと補助ラック１３０Ｂとにピニオン１４０としての主ピニオン１４０Ａと補助ピニオン１４０Ｂとを噛合させた点を特徴としている。   In the present embodiment, a main rack 130A and an auxiliary rack 130B are laid on the girder 30 so as to extend in the longitudinal direction, and a main pinion 140A as a pinion 140 is provided on the main rack 130A and the auxiliary rack 130B. It is characterized by meshing with the auxiliary pinion 140B.

前記主ピニオン１４０Ａは、前記主トロリ６０Ａに搭載される主横行駆動装置８０Ａ（横行駆動装置８０）によって回転駆動されるようになっている。尚、前記主横行駆動装置８０Ａは、主横行車輪８１Ａを回転駆動するものである。   The main pinion 140A is rotationally driven by a main transverse drive device 80A (transverse drive device 80) mounted on the main trolley 60A. The main traversing drive unit 80A drives the main traversing wheel 81A to rotate.

前記補助ピニオン１４０Ｂは、前記補助トロリ６０Ｂに搭載される補助横行駆動装置８０Ｂ（横行駆動装置８０）によって回転駆動されるようになっている。尚、前記補助横行駆動装置８０Ｂは、補助横行車輪８１Ｂを回転駆動するものである。   The auxiliary pinion 140B is rotationally driven by an auxiliary traverse drive device 80B (transverse drive device 80) mounted on the auxiliary trolley 60B. The auxiliary traversing drive device 80B rotates the auxiliary traversing wheel 81B.

次に、上記実施例の作用を説明する。   Next, the operation of the above embodiment will be described.

主横行駆動装置８０Ａにより主横行車輪８１Ａを回転駆動して主トロリ６０Ａを横行させると、主横行車輪８１Ａと連動して主ピニオン１４０Ａが主ラック１３０Ａに噛みあった状態で該主ラック１３０Ａ上を転動する。   When the main traversing wheel 81A is rotationally driven by the main traversing drive device 80A to traverse the main trolley 60A, the main pinion 140A is engaged with the main rack 130A in conjunction with the main traversing wheel 81A. Roll.

又、補助横行駆動装置８０Ｂにより補助横行車輪８１Ｂを回転駆動して補助トロリ６０Ｂを横行させると、補助横行車輪８１Ｂと連動して補助ピニオン１４０Ｂが補助ラック１３０Ｂに噛みあった状態で該補助ラック１３０Ｂ上を転動する。   Further, when the auxiliary traversing wheel 81B is rotationally driven by the auxiliary traversing drive device 80B to traverse the auxiliary trolley 60B, the auxiliary rack 130B is engaged with the auxiliary traversing wheel 81B while the auxiliary pinion 140B is engaged with the auxiliary rack 130B. Roll over.

これにより、本実施例の場合、従来の門型クレーン１０と同様、主トロリ６０Ａや補助トロリ６０Ｂは、ガーダ３０に敷設された主横行レール７０Ａや補助横行レール７０Ｂに沿って主横行車輪８１Ａや補助横行車輪８１Ｂを転動させる構造が採用されているものの、大型部品Ｌの上下反転作業時には、主横行レール７０Ａや補助横行レール７０Ｂと主横行車輪８１Ａや補助横行車輪８１Ｂとの摩擦力のみに依存するのではなく、主ラック１３０Ａに対する主ピニオン１４０Ａの噛合と補助ラック１３０Ｂに対する補助ピニオン１４０Ｂの噛合とにより滑りが生じなくなる。   Thereby, in the case of the present embodiment, the main trolley 60A and the auxiliary trolley 60B are arranged along the main traversing rail 70A and the auxiliary traversing rail 70B laid on the girder 30 in the same manner as the conventional portal crane 10. Although a structure for rolling the auxiliary traversing wheel 81B is adopted, when the large part L is turned upside down, only the frictional force between the main traversing rail 70A and the auxiliary traversing rail 70B and the main traversing wheel 81A and the auxiliary traversing wheel 81B is used. Rather than relying on, slippage does not occur due to the engagement of the main pinion 140A with the main rack 130A and the engagement of the auxiliary pinion 140B with the auxiliary rack 130B.

こうして、横行方向への主トロリ６０Ａ及び補助トロリ６０Ｂの滑りをなくすことができ、円滑な作業を行い得る。   Thus, the main trolley 60A and the auxiliary trolley 60B can be prevented from slipping in the transverse direction, and a smooth operation can be performed.

尚、本発明の門型クレーンは、上述の実施例にのみ限定されるものではなく、単独のトロリを備えた門型クレーンにも適用可能なこと等、その他、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   The portal crane of the present invention is not limited to the above-described embodiments, and can be applied to a portal crane having a single trolley. Other scopes do not depart from the gist of the present invention. Of course, various changes can be made.

１０ 門型クレーン
２０ 脚部
３０ ガーダ
４０ 走行レール
５０ 走行装置
５１ 走行車輪
６０ トロリ
６０Ａ 主トロリ
６０Ｂ 補助トロリ
７０ 横行レール
７０Ａ 主横行レール
７０Ｂ 補助横行レール
８０ 横行駆動装置
８０Ａ 主横行駆動装置
８０Ｂ 補助横行駆動装置
８１ 横行車輪
８１Ａ 主横行車輪
８１Ｂ 補助横行車輪
９０Ａ 主ウインチドラム
９０Ｂ 補助ウインチドラム
９１Ａ 主ワイヤロープ
９１Ｂ 補助ワイヤロープ
１００Ａ 主吊ブラケット
１００Ｂ 補助吊ブラケット
１１０Ａ 支持フレーム
１２０Ａ 運転室
１３０ ラック
１３０Ａ 主ラック
１３０Ｂ 補助ラック
１４０ ピニオン
１４０Ａ 主ピニオン
１４０Ｂ 補助ピニオン
Ｄ ドック
Ｌ 大型部品 DESCRIPTION OF SYMBOLS 10 Gate type crane 20 Leg 30 Girder 40 Traveling rail 50 Traveling device 51 Traveling wheel 60 Trolley 60A Main trolley 60B Auxiliary trolley 70 Traversing rail 70A Main traversing rail 70B Auxiliary traversing rail 80 Traversing driving device 80A Main traversing driving device 80B Auxiliary traverse driving Device 81 Traverse wheel 81A Main traverse wheel 81B Auxiliary traverse wheel 90A Main winch drum 90B Auxiliary winch drum 91A Main wire rope 91B Auxiliary wire rope 100A Main suspension bracket 100B Auxiliary suspension bracket 110A Support frame 120A Driver's cab 130 Rack 130A Main rack 130B Auxiliary rack 140 Pinion 140A Main pinion 140B Auxiliary pinion D Dock L Large parts

Claims (2)

走行レールに沿って走行自在となるよう所要間隔をあけて立設される脚部と、
該脚部の上端部間に掛け渡すように設けられ且つ水平方向へ延びるガーダと、
前記ガーダに横行レールに沿って横行自在となるよう配設されるトロリと、
前記ガーダにその長手方向へ延びるよう敷設されるラックと、
前記トロリに搭載される横行駆動装置によって回転駆動され且つ前記ラックに噛合するピニオンと
を備えた門型クレーン。 Legs that are erected with a required interval so as to be able to run along the running rail;
A girder provided to extend between the upper ends of the legs and extending in the horizontal direction;
A trolley disposed on the girder so as to be traversable along a traversing rail;
A rack laid to extend in the longitudinal direction of the girder;
A portal crane comprising: a pinion that is rotationally driven by a transverse drive device mounted on the trolley and meshes with the rack. 前記トロリは、主トロリと、補助トロリとを有し、
前記ラックは、主ラックと、補助ラックとを有し、
前記ピニオンは、前記主トロリに搭載される主横行駆動装置によって回転駆動され且つ前記主ラックに噛合する主ピニオンと、前記補助トロリに搭載される補助横行駆動装置によって回転駆動され且つ前記補助ラックに噛合する補助ピニオンとを有した請求項１記載の門型クレーン。 The trolley has a main trolley and an auxiliary trolley,
The rack has a main rack and an auxiliary rack,
The pinion is rotationally driven by a main traverse drive device mounted on the main trolley and meshed with the main rack, and is rotationally driven by an auxiliary traverse drive device mounted on the auxiliary trolley and connected to the auxiliary rack. The portal crane according to claim 1, further comprising an auxiliary pinion that meshes.
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KR102577629B1 (en) * 2023-06-08 2023-09-13 주식회사 에스디호이스트 Engineroom hoist unit

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