JP2010235257A - Moving type jib crane - Google Patents

Moving type jib crane Download PDF

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JP2010235257A
JP2010235257A JP2009085156A JP2009085156A JP2010235257A JP 2010235257 A JP2010235257 A JP 2010235257A JP 2009085156 A JP2009085156 A JP 2009085156A JP 2009085156 A JP2009085156 A JP 2009085156A JP 2010235257 A JP2010235257 A JP 2010235257A
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turning
jib
jib crane
crane
tension
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JP5519170B2 (en
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Junji Ono
純二 小野
Atsushi Kawamoto
淳 河本
Yoichi Minami
陽一 南
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Mitsui Engineering and Shipbuilding Co Ltd
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Mitsui Engineering and Shipbuilding Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving type jib crane suppressing generation of bending moment in a support of a jib crane by eliminating counterweight disposed in a turning body of the jib crane. <P>SOLUTION: An oscillation mechanism 14 made oscillatable by an oscillation shaft 14a of a horizontal direction orthogonal to a longitudinal direction of a jib 11b is interposed between a turning wheel 6 for turning a turning body 11a of the jib crane 11 around a vertical shaft and the turing body 11a, and the turning body 11a is made oscillatable by the oscillation shaft 14a. A distal end part of a sling 15 elongating a base end part up to the ground is locked on a rear part side of the turning body 11a, the intermediate part is linked with the turning wheel 16 rotatably provided in a telescopic boom 4, and rotation of the turning wheel 16 is synchronized with turning of the turning body 11a. When the turning body 11a is oscillated with the oscillation shaft 14a as a center by a hanging load, tension balancing with this oscillation is generated in the sling 15 to suppress bending moment from acting on the telescopic boom 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、車両に積載された伸縮ブームの先端に搭載された移動式クレーンであって、ジブが旋回体に設けられて鉛直方向の軸を中心として旋回するジブクレーンに関し、特に、旋回体の後部に取り付けられるカウンターウェイトをなくすことができるようにした移動式ジブクレーンに関する。   The present invention relates to a mobile crane mounted on the tip of a telescopic boom mounted on a vehicle, and relates to a jib crane in which a jib is provided on a revolving structure and revolves around a vertical axis, and in particular, a rear part of the revolving structure. The present invention relates to a mobile jib crane that can eliminate the counterweight attached to the vehicle.

地上に建設される塔状構造物として、各種のタワーやモニュメント、煙突等、種々のものがあり、その一つとして風力発電用の風車の支柱である風車用タワーがある。タワーの頂上部には、水平軸に支持された複数枚のプロペラ翼(ブレード)を備え、この風車の回転により発電する発電機、風車の指向方向を風上に合わせる回転機構等の重量物となるナセルが設置されている。また、安定して発電効率を高めるためには、ある程度強い風を受けることが必要となり、極力高位置に頂上部を位置させることが望ましい。すなわち、風車タワーでは、極力高位置まで頂上部を伸長させて、頂上部に重量物を支持する必要がある。この種の塔状構造物を建設するには、一般的に、大型クローラークレーンやモバイルクレーン(ティレインクレーン)等の移動式クレーンが使用される。   There are various tower-like structures constructed on the ground, such as various towers, monuments, and chimneys. One of them is a tower for wind turbines, which is a column of wind turbines for wind power generation. At the top of the tower is equipped with a plurality of propeller blades (blades) supported by a horizontal axis, and generators that generate electricity by the rotation of the windmill, heavy objects such as a rotation mechanism that adjusts the direction of the windmill to the windward, and the like Nacelle is installed. Moreover, in order to improve the power generation efficiency stably, it is necessary to receive a strong wind to some extent, and it is desirable to position the top at a position as high as possible. That is, in a windmill tower, it is necessary to extend a top part to a high position as much as possible, and to support a heavy article on the top part. In order to construct this type of tower-like structure, a mobile crane such as a large crawler crane or a mobile crane (a terrain crane) is generally used.

ところで、風力発電用の風車では発電効率を高めるために、前述したように、風車タワーの頂上部を極力高位置まで伸長させることが要求されており、例えば100mを超える高さにナセルやブレード、ハブ等の風車本体を設置することが要求されている。しかも、高さが高くなると発電能力等が大きくなり、発電用機材が大型化して風車本体の重量が50t以上にもなる。100m級の風車を建設する場合には、現存のモバイルクレーンでは載荷重量が50t以上となると80m程度までしか荷揚げが困難となり、大型クローラークレーンが用いられる。   By the way, in order to improve power generation efficiency in a wind turbine for wind power generation, as described above, it is required to extend the top of the wind turbine tower to a high position as much as possible. It is required to install a wind turbine body such as a hub. Moreover, when the height is increased, the power generation capacity and the like are increased, the power generation equipment is enlarged, and the weight of the windmill body is increased to 50 t or more. When constructing a 100 m class windmill, it is difficult to unload only about 80 m when the loaded load is 50 t or more with an existing mobile crane, and a large crawler crane is used.

これらクローラークレーン等は、入れ子式の構造を備えた、いわゆるテレスコピック式ブームを備え、このテレスコピック式ブームの先端部に旋回体が搭載され、この旋回体に、ジブが鉛直方向の旋回軸を中心として旋回するジブクレーンが用いられる。   These crawler cranes and the like have a so-called telescopic boom having a telescopic structure, and a turning body is mounted on the tip of the telescopic boom, and the jib is centered on the turning axis in the vertical direction. A turning jib crane is used.

図3により、従来のこの種の移動式ジブクレーン1により塔状構造物2を建設する作業状態を説明する。塔状構造物2は下部から徐々に柱脚部材2aが積み上げられて建設される。ジブクレーン1は、クレーン車両3に積載されたテレスコピック式のブーム4の先端部に搭載された旋回体1aを備えており、塔状構造物2の建設の進行状況に応じた高さまで伸長させながら旋回体1aに設けられたジブ1bにより柱脚部材2aやこの塔状構造物物2の頂部に設置されるナセル5等を吊り下げて、積み上げ作業が行われる。また、クレーン1の旋回体1aは、ブーム4の上端部近傍に設けられた旋回輪6に取り付けられており、この旋回輪6の回動により旋回することになる。   With reference to FIG. 3, an operation state in which the tower-like structure 2 is constructed by the conventional mobile jib crane 1 of this type will be described. The tower-like structure 2 is constructed by gradually stacking column base members 2a from the bottom. The jib crane 1 is provided with a swivel body 1a mounted on the tip of a telescopic boom 4 loaded on a crane vehicle 3, and swivels while extending to a height corresponding to the progress of construction of the tower-like structure 2. The jib 1b provided on the body 1a suspends the column base member 2a and the nacelle 5 installed on the top of the tower-like structure 2 to perform the stacking operation. Further, the swing body 1 a of the crane 1 is attached to a swing wheel 6 provided in the vicinity of the upper end portion of the boom 4, and turns by the rotation of the swing wheel 6.

この種のジブクレーン1では、荷揚作業時の機体を安定させるために、旋回体1aの後部、すなわち、ジブ1bが配された側と反対側の旋回体1aの部分にカウンターウェイト1cが取り付けられている。建設作業では、このカウンターウェイトも旋回体1aと共にせり上げる必要があるから、このせり上げに要する力が大きく、ブーム4の伸縮構造が大がかりとなってしまう。しかも、カウンターウェイト1cもクレーン1の機材と共に、建設現場に搬入しなければならず、搬入のための機材を増加させている。   In this type of jib crane 1, a counterweight 1c is attached to the rear part of the swivel body 1a, that is, the part of the swivel body 1a opposite to the side where the jib 1b is arranged in order to stabilize the airframe during unloading work. Yes. In the construction work, it is necessary to lift the counterweight together with the revolving body 1a. Therefore, the force required for the lifting is large, and the expansion and contraction structure of the boom 4 becomes large. Moreover, the counterweight 1c has to be carried into the construction site together with the crane 1 equipment, increasing the equipment for carrying in.

さらに、カウンターウェイト1cは、荷揚作業を行わない場合でも旋回体1aに取り付けられた状態にあるため、カウンターウェイト1cにより支柱であるブーム4には大きな曲げモーメントが加わることになり、それに対抗するために、ブーム4や旋回体1a等の部分の重量を大きくし、大型化することになる。   Furthermore, since the counterweight 1c is attached to the revolving structure 1a even when unloading is not performed, a large bending moment is applied to the boom 4 as a support by the counterweight 1c to counteract it. In addition, the weights of the boom 4 and the swivel body 1a are increased to increase the size.

このため、前記カウンターウェイトを省略するようにしたブーム旋回式クレーンが提案されている(特許文献1参照)。このブーム旋回式クレーンは、架設途中の塔状構造物に固定される上部固定ポストと、上部固定ポストに鉛直旋回軸を介して旋回自在に支持され旋回駆動装置で旋回駆動される旋回台と、旋回台に起伏自在に取付られたブームと、上部固定ポストの鉛直下方に所定間隔あけて配設されるとともに上部固定ポストと一体又は別体に形成され且つ塔状構造物に固定される下部固定ポストと、下部固定ポストに上記鉛直旋回軸と同心状に旋回自在に組付けられた下部旋回部材と、旋回台に一体的に固着された旋回台のブーム張出し側と反対側へ張出す台枠と、下部旋回部材と台枠の反旋回台側端部とを連結する傾斜状のテンション部材とを備えた構造とされている。   For this reason, a boom swing type crane in which the counterweight is omitted has been proposed (see Patent Document 1). This boom swivel crane includes an upper fixed post fixed to a tower-like structure in the middle of installation, a swivel base that is pivotally supported on the upper fixed post via a vertical swivel shaft and is swiveled by a swivel drive device, A boom mounted on a swivel so that it can be raised and lowered, and a lower fixed portion that is disposed vertically below the upper fixed post at a predetermined interval and that is formed integrally with or separate from the upper fixed post and fixed to the tower structure. A post, a lower revolving member that is pivotally assembled to the lower fixed post so as to be concentric with the vertical swivel shaft, and a frame that extends to the opposite side of the swivel base that is fixed integrally with the swivel And an inclined tension member that connects the lower swivel member and the end of the underframe on the side opposite to the swivel base.

特許第2515531号公報Japanese Patent No. 2515531

特許文献1に開示されたブーム旋回式クレーンでは、吊荷重で生じるモーメントを前記テンション部材に生じる張力によるモーメントで打ち消すことができるようにして、カウンターウェイトを省略しようとするものである。   In the boom turning type crane disclosed in Patent Document 1, the moment generated by the suspension load can be canceled by the moment caused by the tension generated in the tension member, and the counterweight is to be omitted.

しかしながら、クレーンによる吊り下げ荷重が増大すると、吊り下げ荷重に前記テンション部材に生じる張力では十分に対抗することができずに、支柱にかかる曲げモーメントが、吊り下げ荷重によるものとテンション部材の張力によるものとが相殺できず、そのモーメントの差による曲げモーメントが作用することになる。特に、風力発電用の風車タワーの建設では、風車タワーの頂部に設置される、発電機や風車の指向方向を風上に合わせる回転機構等を備えたナセルが設置されることになる。しかも、風車により高い効率で発電させるためには、安定した風力をうけることが要求されるため、極力高所に風車を設置されることが要求される。このため、風車タワーを高所まで伸長させることが要求されることになり、風車タワーの建設に用いられるクレーンでは、支柱にかかる曲げモーメントを極力発生させないようにすることが好ましい。   However, when the suspension load by the crane increases, the tension generated by the tension member cannot sufficiently counter the suspension load, and the bending moment applied to the column depends on the suspension load and the tension of the tension member. The thing cannot be offset, and a bending moment due to the difference in the moment acts. In particular, in the construction of a wind turbine tower for wind power generation, a nacelle equipped with a rotating mechanism or the like that is installed at the top of the wind turbine tower and aligns the directivity direction of the generator and the wind turbine to the windward is installed. Moreover, in order to generate power with high efficiency by the windmill, it is required to receive a stable wind force, and therefore, it is required to install the windmill as high as possible. For this reason, it is required to extend the windmill tower to a high place, and it is preferable that the crane used for the construction of the windmill tower does not generate the bending moment applied to the support as much as possible.

そこで、この発明は、カウンターウェイトを省略すると共に、支柱にかかる曲げモーメントを極力抑制することができるようにしたジブクレーンを提供することを目的としている。   Therefore, an object of the present invention is to provide a jib crane that omits the counterweight and can suppress the bending moment applied to the support as much as possible.

前記目的を達成するための技術的手段として、この発明に係るジブクレーンは、建設に係る塔状構造物の建設の進行状況に合わせてせり上げられる支柱の頂部に配設され、ジブが旋回体により鉛直方向の旋回軸を中心として旋回するジブクレーンにおいて、前記ジブの長手方向と交差する水平方向を揺動軸として、前記旋回体を揺動可能に支持させ、前記ジブの長手方向の線上であって前記旋回体の後部に張力索の先端部を固定し、該張力索の基端部を地上まで導びいてあることを特徴としている。   As a technical means for achieving the above object, a jib crane according to the present invention is disposed on the top of a column that is raised in accordance with the progress of construction of a tower-like structure according to construction, and the jib is formed by a revolving structure. In a jib crane turning around a vertical turning axis, the turning body is supported swingably with a horizontal direction intersecting the longitudinal direction of the jib as a swing axis, and is on a line in the longitudinal direction of the jib. A distal end portion of a tension cord is fixed to a rear portion of the revolving body, and a proximal end portion of the tension cord is guided to the ground.

このクレーンにより荷を吊り下げると、吊り荷重により前記揺動軸を中心として旋回体のジブ側が下方に引き下げられるように旋回体を揺動させる。一方、この旋回体にかかる吊り荷重に対抗して前記張力索に張力が生じる。このとき、吊荷重により旋回体を揺動させようとするモーメントと、張力索に生じる張力によるモーメントとが均衡して旋回体の揺動が阻止される。   When the crane suspends the load, the swinging body is swung so that the jib side of the swinging body is pulled downward about the swinging shaft by the lifting load. On the other hand, tension is generated in the tension cord against the suspension load applied to the revolving structure. At this time, the moment to cause the swinging body to swing due to the suspended load and the moment due to the tension generated in the tension line are balanced, and swinging of the swinging body is prevented.

また、請求項2の発明に係るジブクレーンは、前記支柱の適宜な高さ位置に、該支柱を中心として回動する旋回輪を設け、前記張力索の中間部をこの旋回輪に連繋させてあることを特徴としている。   Further, the jib crane according to the invention of claim 2 is provided with a swivel wheel that rotates around the support column at an appropriate height position of the support column, and an intermediate portion of the tension cord is connected to the swivel wheel. It is characterized by that.

前記張力索は支柱の頂部に配設された前記旋回体と地上との間に伸長されるから、支柱が高くなって旋回体が高位置となると、張力索の長さが大きくなる。一方、旋回体は前記旋回軸を中心として旋回するから、張力索も追随して旋回する。このとき、張力索が支柱に巻回されてしまい、十分な張力を生じさせることができないおそれが生じる。そこで、張力索の旋回を案内するよう前記旋回輪を設けて、これに張力索を連繋させたものである。なお、この旋回輪の回動を旋回体の旋回に同調させるようにすれば、張力索は旋回体と地上との間で最短距離で伸長するから、確実に張力を生じさせることができるので、好ましい。   Since the tension cord is extended between the revolving structure disposed on the top of the support column and the ground, the length of the tension cable increases when the support structure is raised and the revolving structure is at a high position. On the other hand, since the revolving structure revolves around the revolving axis, the tension cable follows and revolves. At this time, the tension cord is wound around the support column, and there is a possibility that sufficient tension cannot be generated. Therefore, the turning wheel is provided so as to guide the turning of the tension cord, and the tension cord is linked to this. If the turning of the swivel wheel is synchronized with the turning of the turning body, the tension cable extends at the shortest distance between the turning body and the ground, so that tension can be reliably generated. preferable.

この発明に係るジブクレーンによれば、旋回体にカウンターウェイトを取り付けることがないから、クレーンのせり上げ作業からカウンターウェイトに対する作業を省くことができ、作業性を向上させることができる。しかも、旋回体を適宜角度まで揺動させた状態で、張力索に生じる張力を均衡させることにより、支柱に曲げモーメントをかけることがなく、支柱や旋回体等を大型化することがない。   According to the jib crane according to the present invention, since the counterweight is not attached to the revolving structure, the work on the counterweight can be omitted from the lifting work of the crane, and the workability can be improved. In addition, by balancing the tension generated in the tension cord in a state where the revolving body is swung to an appropriate angle, a bending moment is not applied to the strut, and the strut and the revolving body are not enlarged.

また、請求項2の発明に係るジブクレーンによれば、前記張力索に確実に張力を生じさせて、確実に吊荷重と均衡させることができ、クレーンの作業の安定性を確保することができる。   Moreover, according to the jib crane which concerns on invention of Claim 2, a tension | tensile_strength can be reliably produced in the said tension | tensile_strength, it can balance with a suspension load reliably, and the stability of the operation | work of a crane can be ensured.

この発明に係るジブクレーンにより、塔状構造物を建設する作業状態を説明する図である。It is a figure explaining the work state which constructs a tower-like structure with the jib crane concerning this invention. この発明に係るジブクレーンの概略の構造を説明する図である。It is a figure explaining the schematic structure of the jib crane concerning this invention. 従来のジブクレーンにより、塔状構造物を建設する作業状態を説明する図で、図1に対応する図である。It is a figure explaining the work state which builds a tower-like structure with the conventional jib crane, and is a figure corresponding to FIG.

以下、図示した好ましい実施の形態に基づいて、この発明に係るジブクレーンを具体的に説明する。   The jib crane according to the present invention will be specifically described below based on the preferred embodiments shown in the drawings.

図1はこの移動式ジブクレーン10により塔状構造物2を建設する作業状態を説明する図であり、図2はジブクレーン11を説明する概略の側面図である。なお、図3に示す移動式ジブクレーン1と同様の部位については同一の符号を付してある。このジブクレーン11の旋回体11aは伸縮ブーム4の上端部に旋回輪6を介して設けられており、鉛直方向の旋回軸を中心として旋回可能とされている。この旋回体11aの前部にジブ11bが設けられており、このジブ11bにフック12が取り付けられたワイヤ13が連繋されている。   FIG. 1 is a diagram for explaining a working state in which the tower-like structure 2 is constructed by the mobile jib crane 10, and FIG. 2 is a schematic side view for explaining the jib crane 11. In addition, the same code | symbol is attached | subjected about the site | part similar to the mobile jib crane 1 shown in FIG. The swivel body 11a of the jib crane 11 is provided at the upper end of the telescopic boom 4 via a swivel wheel 6, and can swivel about a swivel axis in the vertical direction. A jib 11b is provided at the front portion of the swivel body 11a, and a wire 13 having a hook 12 attached thereto is connected to the jib 11b.

前記旋回体11aと前記旋回輪6との間には、揺動機構14が介在されている。この揺動機構14に前記ジブ11bの長手方向と直交する方向に沿った水平方向の揺動軸14aが設けられており、この旋回軸14aを中心として旋回体11aが揺動可能とされている。   A swing mechanism 14 is interposed between the revolving body 11a and the revolving wheel 6. The swing mechanism 14 is provided with a horizontal swing shaft 14a along a direction orthogonal to the longitudinal direction of the jib 11b, and the swing body 11a can swing around the swing shaft 14a. .

前記旋回体11aの後部であって、ジブ11bの長手方向と平行な直線上には、張力索15の先端部が係止されている。この緊張索15の基端部はクレーン車両3に積載されたウィンチ等の牽引装置3aに連繋させてある、また、この張力索15の中間部は、支柱である伸縮ブーム4の適宜な高さ位置に配設した旋回輪16に連繋させてある。この旋回輪16は、伸縮ブーム4の軸を中心として回動可能に該伸縮ブーム4に設けられている。さらに、この旋回輪16の回動を、前記旋回体11aの旋回と同調させて行うようにすることが好ましい。   The distal end portion of the tension cord 15 is engaged with the rear portion of the revolving body 11a on a straight line parallel to the longitudinal direction of the jib 11b. The base end portion of the tension cord 15 is connected to a traction device 3a such as a winch loaded on the crane vehicle 3, and the middle portion of the tension cord 15 has an appropriate height of the telescopic boom 4 as a support column. It is connected to the swivel wheel 16 disposed at the position. The swivel wheel 16 is provided on the telescopic boom 4 so as to be rotatable about the axis of the telescopic boom 4. Further, it is preferable that the turning wheel 16 is rotated in synchronization with the turning of the turning body 11a.

以上により構成されたこの発明に係る移動式ジブクレーンでは、荷揚作業による吊り荷重によって前記旋回体11aが揺動軸14aを中心として揺動すると、この旋回体11aを揺動させるモーメントに対抗して前記張力索15に張力が生じ、この張力により旋回体11aに作用するモーメントと前記吊り荷重によるモーメントとが均衡した状態で旋回体11aが停止する。このため、吊り荷重により伸縮ブーム4に曲げモーメントが生じることがない。   In the mobile jib crane according to the present invention configured as described above, when the swing body 11a swings around the swing shaft 14a due to a lifting load caused by unloading work, the moment against the swing body 11a is controlled against the moment. A tension is generated in the tension cord 15, and the swing body 11a stops in a state where the moment acting on the swing body 11a is balanced by the moment due to the suspension load. For this reason, a bending moment does not occur in the telescopic boom 4 due to the suspension load.

そして、荷揚作業のために旋回体11aを旋回させると、これに同調して前記旋回輪16が旋回して、張力索15が中間部で案内されるから、この張力索15が伸縮ブーム4に巻回されてしまうことがない。このため、張力索15に生じている張力を維持させることができ、吊り荷重との均衡を確実に保つことができ、荷揚作業を安定して行わせることができる。   When the swivel member 11a is swung for unloading work, the swivel wheel 16 is swung in synchronism with this, and the tension cord 15 is guided at the intermediate portion. There is no winding. For this reason, the tension generated in the tension cord 15 can be maintained, the balance with the suspension load can be reliably maintained, and the unloading operation can be performed stably.

この発明に係る移動式ジブクレーンによれば、カウンターウェイトを省略すると共に、ジブレーンの支柱に曲げモーメントを生じさせることがないから、塔状構造物の建設作業の作業性の向上に寄与する。   According to the mobile jib crane according to the present invention, the counterweight is omitted and a bending moment is not generated in the column of the jibrane, which contributes to improvement in workability of the construction work of the tower structure.

2 塔状構造物
2a 柱脚部材
3 クレーン車両
3a 牽引装置
4 伸縮ブーム(支柱)
5 ナセル
6 旋回輪
10 移動式ジブクレーン
11 ジブクレーン
11a 旋回体
11b ジブ
12 フック
13 ワイヤ
14 揺動機構
14a 揺動軸
15 張力索
16 旋回輪
2 tower structure
2a Column base 3 Crane vehicle
3a Towing device 4 Telescopic boom (post)
5 Nacelle 6 Turning wheel
10 Mobile jib crane
11 Jib crane
11a Revolving body
11b Jib
12 hook
13 wires
14 Swing mechanism
14a Oscillating shaft
15 Tension cord
16 Swivel wheel

Claims (2)

建設に係る塔状構造物の建設の進行状況に合わせてせり上げられる支柱の頂部に配設され、ジブが旋回体により鉛直方向の旋回軸を中心として旋回するジブクレーンにおいて、
前記ジブの長手方向と交差する水平方向を揺動軸として、前記旋回体を揺動可能に支持させ、
前記ジブの長手方向の線上であって前記旋回体の後部に張力索の先端部を固定し、該張力索の基端部を地上まで導びいてあることを特徴とするジブクレーン。
In a jib crane that is arranged at the top of a column that is raised according to the progress of the construction of a tower-like structure related to construction, and the jib turns around a vertical turning axis by a turning body,
With the horizontal direction intersecting the longitudinal direction of the jib as a swing axis, the swivel body is swingably supported,
A jib crane characterized in that a tip end portion of a tension cord is fixed to a rear portion of the swivel body on a line in a longitudinal direction of the jib, and a base end portion of the tension cord is guided to the ground.
前記支柱の適宜な高さ位置に、該支柱を中心として回動する旋回輪を設け、前記張力索の中間部をこの旋回輪に連繋させてあることを特徴とする請求項1に記載のジブクレーン。   2. The jib crane according to claim 1, wherein a swiveling wheel that rotates about the strut is provided at an appropriate height position of the strut, and an intermediate portion of the tension cord is connected to the swiveling ring. .
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CN113998609A (en) * 2021-10-22 2022-02-01 中建三局集团有限公司 Steel frame lifting machine for hoisting plates
EP4095086A1 (en) * 2021-05-26 2022-11-30 General Electric Renovables España S.L. Crane assemblies and methods for erecting towers and wind turbines
CN116924259A (en) * 2023-08-15 2023-10-24 重庆大学溧阳智慧城市研究院 Intelligent hoisting system and method for modularized building

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CN108483284B (en) * 2018-06-26 2019-07-16 中建二局第二建筑工程有限公司 A kind of derrick crane base steel plinth suspension installation method

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Cited By (4)

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EP4095086A1 (en) * 2021-05-26 2022-11-30 General Electric Renovables España S.L. Crane assemblies and methods for erecting towers and wind turbines
WO2022248536A1 (en) * 2021-05-26 2022-12-01 General Electric Renovables España, S.L. Crane assemblies and methods for erecting towers and wind turbines
CN113998609A (en) * 2021-10-22 2022-02-01 中建三局集团有限公司 Steel frame lifting machine for hoisting plates
CN116924259A (en) * 2023-08-15 2023-10-24 重庆大学溧阳智慧城市研究院 Intelligent hoisting system and method for modularized building

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