WO2009003331A1 - Grue à multiples points d'accrochage et à doubles poutres principales - Google Patents

Grue à multiples points d'accrochage et à doubles poutres principales Download PDF

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Publication number
WO2009003331A1
WO2009003331A1 PCT/CN2007/003423 CN2007003423W WO2009003331A1 WO 2009003331 A1 WO2009003331 A1 WO 2009003331A1 CN 2007003423 W CN2007003423 W CN 2007003423W WO 2009003331 A1 WO2009003331 A1 WO 2009003331A1
Authority
WO
WIPO (PCT)
Prior art keywords
main beam
hoisting
lifting
control system
main
Prior art date
Application number
PCT/CN2007/003423
Other languages
English (en)
Chinese (zh)
Inventor
Jiajing Song
Sheng Zou
Min Gu
Original Assignee
Dalian Huarui Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CNU2007200130439U external-priority patent/CN201080415Y/zh
Priority claimed from CN2007100119379A external-priority patent/CN101104501B/zh
Application filed by Dalian Huarui Co., Ltd. filed Critical Dalian Huarui Co., Ltd.
Priority to JP2010513610A priority Critical patent/JP5247799B2/ja
Priority to KR1020107001721A priority patent/KR101184874B1/ko
Publication of WO2009003331A1 publication Critical patent/WO2009003331A1/fr

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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
    • B66C25/00—Cranes not provided for in groups B66C17/00 - B66C23/00
    • 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 invention relates to a lifting machine, in particular to a double main beam multi-lifting crane for overall docking and manufacturing of an offshore drilling platform.
  • the present invention aims to provide an oversized lifting crane to meet the lifting requirements of the new manufacturing process of the drilling platform.
  • a double main beam multi-lifting crane for super large load comprising a main beam, a hoisting mechanism, a translation mechanism, an electric control system, a rotary maintenance crane, a driver's cab, an anchoring device and a windproof tether, wherein:
  • the main beam consists of double main beams arranged at high and low levels.
  • the two main beams are placed on two concrete foundations, and there is no connecting end beam between the two main beams.
  • Each of the main beams is connected by anchoring device and windproof cable.
  • each main beam adopts variable cross section, which is a high-narrow composite beam composed of upper, middle and lower three-box beams; the high-narrow composite type
  • the aspect ratio of the main beam is 3 to 5.
  • the hoisting mechanism is composed of a plurality of sets of hoisting systems, respectively disposed at two ends of the two main beams; each set of each hoisting system is provided with one or more hoisting systems, and each set of hoisting systems is respectively provided with more than one set Hang Point, and synchronously drive all the above lifting points through the electronic control system; the hoisting system is equipped with a rope arranging mechanism, and adopts a single multi-layer winding rope system; to ensure that the entire lifting height is not disordered, avoiding numerous The interference between the wire ropes and the wire rope and the main beam.
  • the 20000t X 125m hook-type overhead crane project consists of 12 sets of hoisting systems, each set of 3 sets of each main beam, and 4 sets of lifting points for each set of hoisting systems. 48 lifting points.
  • the translation mechanism is a self-propelled bidirectional translation mechanism of the main beam disposed along the axial direction of the vertical main beam at the bottom ends of the low main beam;
  • the electric control system is an electric control system for a multi-point crane crane statically indeterminate system, comprising a hoist mechanism control system, a controller, a load sensor and a position sensor composed of a frequency converter, an inverter, a communication module and an electric motor. And the host computer,
  • the controller is responsible for receiving the control command with the host computer, returning the on-site information, and controlling the feedback signals of the running and receiving sensors of each lifting mechanism;
  • the load sensor and the position sensor transmit the load weight and the hoisting height information of each hoisting mechanism to the controller through the communication module carried by the hoisting mechanism, and adjust the operation of each hoisting mechanism by the processing of the controller;
  • the controller, the sensor and the lifting mechanism are all connected by bus communication.
  • the controller is a PLC
  • the load sensor is a load cell
  • the position sensor is a code sensor.
  • the electric control system is an electric control system for a multi-point crane crane statically indeterminate system, which comprises a control system for automatically calculating the centroid of the lifting piece and reasonably distributing the pulling force of each lifting point, a lifting control system for the anti-rollover balance of the lifting device, and various mechanism lines. Speed synchronization control system, crane level automatic control system. Through the electronic control system, the crane load synchronization and smooth lifting are realized.
  • the electronic control system can also realize the functions of 12 sets of hoisting systems, single movement, linkage, and horizontal traverse of the main beam.
  • the hoisting mechanism adopts a multi-winding system to make manufacturing, installation and maintenance simple and low in cost
  • the high and low arrangement double main beam structure can adapt to the large-scale hoisting and docking of the tall rig of the tower, which avoids the technical complexity and low reliability caused by the single main beam lifting scheme;
  • the high-narrow composite beam structure composed of three-box beam has reasonable structure, large carrying capacity and light weight Such characteristics can effectively solve the stress concentration problem caused by the entry and exit holes of the main beam opening wire rope;
  • the invention not only has significant economic benefits, but also can promote the change of the manufacturing method of the drilling platform, thereby bringing about huge social benefits and having a profound impact on the construction of offshore projects in China and the world.
  • Figure 1 is a front elevational view of the overall arrangement of the present invention
  • Figure 2 is a left side view of Figure 1;
  • Figure 3 is a schematic view showing the arrangement of the main beam of the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a schematic view showing the winding of a wire rope of a hoisting system of the hoisting mechanism of the present invention
  • Figure 6 is a left side view of the hoisting mechanism of the single main beam of Figure 1;
  • Figure 7 is a front elevational view of the translation mechanism
  • Figure 8 is an automatic calculation of the centroid position of the hanger
  • Figure 9 is the target pull value for automatically assigning each lifting point
  • Figure 10 is a block diagram of the synchronous control principle of the winch system
  • FIG 11 is a block diagram of the control system.
  • the high main beam 1 and the low main beam 2 are respectively arranged on two different concrete foundations, and the hoisting mechanism is hoisted by six sets of hoisting systems 3 on each main beam, that is, a total of 12 sets.
  • the system consists of each hoisting system 3 consisting of a hoist, a wire rope, a guide pulley, a fixed pulley block, a movable pulley block, etc.; the whole system has a magnification of 40; each set of hoisting system includes 4 moving pulley blocks, and each moving pulley block controls 1 Lifting Point.
  • Winch includes reel (including wire rope press plate), reducer, brake, open gear, coupling, float
  • the hoist completes each lifting cycle through the motor-driven reel as shown in Figure 3.
  • Each hoisting system controls 4 lifting points, and 12 sets of hoisting systems have a total of 48 lifting points to jointly complete the 20,000-ton load lifting task. . See Figure 5 for the winding of the hoisting system.
  • the main beam adopts a variable cross-section form as shown in Fig. 3. It is a high-narrow composite beam composed of upper, middle and lower three-box beams, as shown in Fig. 4, and its aspect ratio is equal to 4.
  • Fig. 6 The anti-interference arrangement of the hoisting wire rope through the multi-lifting crane is shown in Fig. 6, which avoids the interference problem of many wire ropes.
  • the hoist is placed on the main girder cover, and each set of hoisting machines is arranged on each of the end plates of each main beam; the wire rope of each hoist is passed along a fixed guide pulley in the upper space of the main girder cover. From the small opening on the upper cover of the main beam, enter the inner pulley set of the main beam, then wrap it onto the movable pulley block, repeatedly wrap it, and finally fix it on the fixed point of the fixed pulley block.
  • the three sets of hoists on the main beam at each end adopt different heights of support, which makes the rope height of different hoist drum ropes different; in addition, the vertical centerline of the reel of the three sets of hoists at each end of the main beam is connected with the center line of the guide pulley.
  • the line of the main beam of the main beam is formed by the same small yaw angle.
  • the third hoist at each end is rotated by 1.04 degrees with respect to the center line of the main beam.
  • the two ends are opposite to each other; such arrangement enables the wire ropes to be staggered in space, avoiding interference between the wire ropes and the wire rope and the main beam, and making the deflection angle of the wire rope and the hoist drum and the pulley conform to the standard.
  • the linkage between the movable pulley sets maintains a fixed distance connection between the four sets of moving pulley blocks controlled by each set of winch systems, which can simultaneously raise and lower the four lifting points controlled by the four moving pulley blocks, and avoid interference between the wire ropes. .
  • the translation mechanism includes a hinge 21 for carrying the weight and load of the main beam 2, a hydraulic translation mechanism 22, a cylinder support frame 23, a stainless steel sliding track 24, a square steel guide rail 25, a modified polytetrafluoroethylene plate 26, Self-locking wedge clamping mechanism.
  • the whole hydraulic translation mechanism 22 is composed of a hydraulic system, an electric system and a support frame.
  • the hydraulic system includes two jack-up cylinders. .
  • the entire hydraulic translation mechanism 22 is carried along a square steel rail 25 Two-way crawling, each time pushing the main beam 0. 8m, each time the first clamping of the square steel rail 25 by a pair of self-locking wedge clamping mechanism, the other pair of wedge-shaped blocks are in a relaxed state, and then the piston rod pushes the cylinder to support The self-locking wedge clamping mechanism again.
  • the self-locking wedge clamping mechanism is again rotated.
  • the self-locking wedge clamping mechanism is again. By clamping the square steel rail 25, the piston rod pushes the cylinder support frame 23 again to drive the main beam 2, and so on, until the requirement of each translation distance is satisfied. When the translation is reversed, another pair of wedge blocks begin to act, and the reverse translation is also achieved by the above process. Due to the relative slip of the main beam and the foundation of the civil engineering, a mirrored stainless steel sliding track 24 is adhered to the surface of the prefabricated plate of the civil construction, and a modified polytetrafluoroethylene plate 26 is fixed at the bottom of the lower cover of the main beam hinge 21, so that The friction coefficient is greatly reduced, and the material has a small amount of compression deformation and a low wear rate.
  • the crane load is synchronized and leveled up by the electric control system of the multi-point crane crane statically indeterminate system.
  • the electronic control system adopts the design idea and various control of "automatically calculating the centroid of the hanging piece, reasonably distributing the pulling force of each lifting point, controlling the tilting prevention of the hanging piece, synchronizing the line speed of each mechanism, and automatically controlling the level of the hanging piece". Means to solve the above problems.
  • the electrical control scheme for the hoisting mechanism of the hoisting mechanism consisting of 12 sets of hoisting systems is as follows:
  • the control system automatically analyzes the load center of the 12 sets of lifting mechanisms and makes a reasonable grouping, automatically calculates the centroid position of the lifting parts, and distributes the rational force of each lifting mechanism.
  • each lifting point tension control is another important additional control means.
  • the control system detects the pulling force carried by each hook during the running process through the tension sensor. Once the lifting force of a lifting point exceeds the target pulling force value, the The mechanism corrects the tension value back to the allowable value range. Can effectively prevent tipping.
  • the hoisting motor adopts the speed control as the main reference, and the speed synchronous control as the most basic control means. Since the hoisting mechanism wire rope winding method is multi-layer winding, for a certain motor speed, the hoisting mechanism is The line speed of one layer is different. Control system through calculation and external The detection means cooperates to provide different speed reference signals for the frequency converter according to different layers, which can ensure the wire speed of each set of lifting mechanism is consistent.
  • the control system uses the displacement signal provided by the position detection encoder to detect the relative position difference of each lifting point in real time during the lifting process.
  • the coordinate plane and the hovering mode formed by each lifting point are memorized,
  • the position correction is performed; the hanger is kept at a basic level during operation.
  • control system will adopt different control methods, and automatically complete the functions of data acquisition and calculation, function judgment and data correction, so that the control system is highly automated and intelligent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

L'invention concerne une grue à multiples points d'accrochage et à doubles poutres principales qui comprend des poutres principales, un mécanisme de levage, un mécanisme de translation (4) et un système de commande électrique, caractérisé en ce que lesdites poutres principales sont des doubles poutres principales (1, 2) disposées en haut et en bas, chaque poutre principale ayant des sections variables et étant des poutres composées étroites et supérieures se composant de poutres principales du type triple caisson ; le mécanisme de levage est constitué de multiples séries de systèmes de levage (3), chaque série de systèmes de levage (3) étant raccordée respectivement à et contrôlant de multiples points d'accrochage et entraînant de façon synchrone au-dessus tous les points d'accrochages par l'intermédiaire du système de commande électrique ; un mécanisme arrangeant le câble est disposé au niveau des systèmes de levage (3) et un système de câble de torsion multi-couches et à mono-raccordement est adopté ; le mécanisme de translation (4) est un mécanisme auto-translatant de manière bidirectionnelle les poutres principales disposé aux deux extrémités de la poutre principale inférieure ; le système de commande électrique est un système de commande électrique d'un système hyperstatique de grue à multiples points d'accrochage.
PCT/CN2007/003423 2007-06-29 2007-12-03 Grue à multiples points d'accrochage et à doubles poutres principales WO2009003331A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2010513610A JP5247799B2 (ja) 2007-06-29 2007-12-03 ダブル主桁多点吊りクレーン
KR1020107001721A KR101184874B1 (ko) 2007-06-29 2007-12-03 더블 메인 거더 멀티 리프트 포인트 크레인

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200710011937.9 2007-06-29
CN200720013043.9 2007-06-29
CNU2007200130439U CN201080415Y (zh) 2007-06-29 2007-06-29 双主梁多吊点起重机
CN2007100119379A CN101104501B (zh) 2007-06-29 2007-06-29 双主梁多吊点起重机

Publications (1)

Publication Number Publication Date
WO2009003331A1 true WO2009003331A1 (fr) 2009-01-08

Family

ID=40225700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003423 WO2009003331A1 (fr) 2007-06-29 2007-12-03 Grue à multiples points d'accrochage et à doubles poutres principales

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Country Link
JP (1) JP5247799B2 (fr)
KR (1) KR101184874B1 (fr)
RU (1) RU2442743C2 (fr)
WO (1) WO2009003331A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6579877B2 (ja) * 2015-09-15 2019-09-25 Ｉｈｉ運搬機械株式会社 構造物の吊上下調整方法
JP7349122B2 (ja) 2019-03-13 2023-09-22 三陽メリヤス株式会社 筒状編地の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222154Y (zh) * 1995-05-26 1996-03-13 陈登云 铰接单梁桥式起重机
JPH1192082A (ja) * 1997-09-24 1999-04-06 Kitagawa Iron Works Co Ltd 橋桁の架設用揚重装置
US6023862A (en) * 1996-08-09 2000-02-15 Kci Konecranes International Plc Control system for rope bucket
WO2004074158A1 (fr) * 2003-02-22 2004-09-02 Gottwald Port Technology Gmbh Pont-grue ou grue a portique
CN1785781A (zh) * 2005-11-29 2006-06-14 太原重型机械集团有限公司 大吨位单吊点起重机的起升机构与吊具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062875U (fr) * 1973-10-13 1975-06-07
JPS5351001Y2 (fr) * 1974-03-15 1978-12-06
JP3196393B2 (ja) * 1993-01-18 2001-08-06 石川島播磨重工業株式会社 舞台吊物機構
JP2639889B2 (ja) * 1993-09-24 1997-08-13 川重工事株式会社 大重量構造物のフローティングクレーンによる架設時の荷重管理システム
JPH07187569A (ja) * 1993-12-27 1995-07-25 Sumitomo Heavy Ind Ltd 多点吊りクレーン装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222154Y (zh) * 1995-05-26 1996-03-13 陈登云 铰接单梁桥式起重机
US6023862A (en) * 1996-08-09 2000-02-15 Kci Konecranes International Plc Control system for rope bucket
JPH1192082A (ja) * 1997-09-24 1999-04-06 Kitagawa Iron Works Co Ltd 橋桁の架設用揚重装置
WO2004074158A1 (fr) * 2003-02-22 2004-09-02 Gottwald Port Technology Gmbh Pont-grue ou grue a portique
CN1785781A (zh) * 2005-11-29 2006-06-14 太原重型机械集团有限公司 大吨位单吊点起重机的起升机构与吊具

Also Published As

Publication number Publication date
JP5247799B2 (ja) 2013-07-24
KR101184874B1 (ko) 2012-09-20
RU2442743C2 (ru) 2012-02-20
JP2010531793A (ja) 2010-09-30
KR20100023972A (ko) 2010-03-04
RU2010102934A (ru) 2011-08-10

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