WO2011008200A1 - Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem - Google Patents

Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem Download PDF

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Publication number
WO2011008200A1
WO2011008200A1 PCT/US2009/050599 US2009050599W WO2011008200A1 WO 2011008200 A1 WO2011008200 A1 WO 2011008200A1 US 2009050599 W US2009050599 W US 2009050599W WO 2011008200 A1 WO2011008200 A1 WO 2011008200A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire rope
pair
trolleys
drums
crane
Prior art date
Application number
PCT/US2009/050599
Other languages
English (en)
Inventor
Kinya Ichimura
Original Assignee
Paceco Corp.
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
Application filed by Paceco Corp. filed Critical Paceco Corp.
Priority to SG2012000501A priority Critical patent/SG177504A1/en
Priority to KR1020127003327A priority patent/KR20120049874A/ko
Priority to CN2009801605668A priority patent/CN102548889A/zh
Priority to EP09847428A priority patent/EP2454184A4/fr
Priority to PCT/US2009/050599 priority patent/WO2011008200A1/fr
Publication of WO2011008200A1 publication Critical patent/WO2011008200A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/002—Container cranes
    • 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
    • B66C17/20—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 hoisting or lowering heavy load carriers, e.g. freight containers, railway wagons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack

Definitions

  • the present invention relates primarily to dockside cranes utilized in cargo container handling operations for transporting cargo containers between the ship and shore. More particularly, the present invention relates to a wire rope reeving system for cargo container lifting spreader apparatus which are translated by said cranes. Still more particularly, the present invention relates to twin container lift apparatus for engaging two containers by independent lifting spreaders for simultaneous side-by-side movement and for lifting and lowering said two cargo containers, simultaneously and independently, by a single wire rope reeving system, while the containers are suspended at one location or being transported horizontally by the crane.
  • Quay crane container handling rates are measured in cycle rates. Unsteady quay crane operations result because the cranes move containers different distances depending upon the deposition location of the container on a ship causing varying the cycle rates. For example, as a quay crane loads or unloads each column of containers spaced across the beam of the ship, the hoist travels a longer distance outboard for each successive column of containers and lowers and hoists longer for each container located deeper in the stack. The increased traveling distance and stationary time for the hoist, for each successive container, adds to the container handling time and the resulting cycle time. Increasing productivity through reducing a ship's down time is essentially accomplished by permitting ships to be unloaded and loaded faster. Efforts are continuously being made to further this objective, and the present invention of concurrent multiple container handling is still another advancement in these efforts.
  • FIG. 1 of the drawings shows a typical dockside berthing operation for a ship.
  • the primary container handling equipment is comprised of one or more quay cranes 11 which move on rails along the wharfs edge 13.
  • a retractable boom or gantry 15 extends between at least two pickup and deposition positions such as a dock and a ship 17.
  • the gantry in operative position is cantilevered outboard from the dock to extend over a berthed ship.
  • the crane has a transport trolley or trolleys 19 mounted thereon for
  • Cargo shipping containers which have been unloaded or are to be loaded are temporarily stored in a stacking yard proximate to the ship loading berths.
  • cargo container transporters 21, such as chassis trucks, trailer trucks, or automatically guided vehicles (AGVs) deliver the containers 23 from the stacking yard to dockside.
  • AGVs automatically guided vehicles
  • the quay cranes lift the cargo containers 23 from the dockside container transporters, or from an intermediate buffer mechanism or crane, and move them up and over the ship 17 where they are lowered into shipboard cells.
  • the reverse occurs in ship unloading operations; the quay cranes access the shipboard cargo containers from above the ship and move them dockside and to the ground level or onto dockside transporters or intermediate buffer container holding mechanisms.
  • twin lifting of two containers solved the imbalance problems.
  • Japanese patent S54-6267 discloses this arrangement (in 1979).
  • the container handling cycle rates for the tandem or twin lift methods for cargo container handling can be improved still further for reducing cycle times.
  • the twin lifting cargo container handling crane contemplated according to the present invention departs
  • the present invention is a further improvement on these inventions and a substantial improvement for reducing crane cycle times. It increases still further the efficiency of a twin lift capable cargo container handling crane by permitting lifting and lowering the containers concurrently and independently with a single wire rope reeving system.
  • the present invention provides a new twin lift crane construction for quay crane operation wherein the same can be utilized to improve the efficiency of cargo container ship berthing operations.
  • the general purpose of the present invention is to provide a new twin lift crane apparatus and function which has all of the advantages of the prior art mentioned above, as well as many novel features that result in new methods of cargo container handling in berthing operations, which are not anticipated, rendered obvious, suggested, or even implied by any of the prior art of quay crane wire rope reeving systems either alone or in any combination thereof.
  • the present invention is a method and apparatus comprising a wire rope reeving system for a single wire twin lift cargo container handling crane. It employs a pair of parallel aligned container transport trolleys mounted for reciprocation along a horizontal gantry thereof for suspending a pair of cargo containers thereunder to transport the containers between pickup and deposition positions simultaneously with the defining characteristic of having the capability to lift and lower the containers independently with what is defined as a single wire rope reeving system for the crane and trolleys.
  • FIG. 1 is a side elevation of a typical quay crane of a ship berthing operation
  • FIG. 2 is a perspective view of wire rope reeving system for a twin lift cargo container handling crane of the present invention
  • FIG. 3 is a perspective broken out representational view of one half of the cargo container single wire rope twin lift reeving system of the present invention.
  • FIG. 4 is a performance chart for the single wire rope twin lift reeving system for a quay crane employing the present invention.
  • FIGS. 1 and 2 of the drawings show a typical dockside berthing operation for a ship.
  • the primary cargo container handling equipment is comprised of one or more quay cranes 11 which extend outboard from the dock's edge 13 across the beam of a ship 17 which is located dockside in a shipping port. While a quay crane is the most logical and prevalent expected use for the wire rope reeving system of the present invention, it is contemplated that the twin lift cargo container handling system could also be utilized on a railroad stacking yard bridge crane, as well as dockside, or possibly utilized with a straddle crane, so the term "quay crane" as used herein is intended to include these alternative types of cargo container handling cranes as well.
  • the single wire rope reeving system of the present invention is provided for twin lift cargo container handling by a quay crane 11 which means that the crane is capable of lifting, transporting, and lowering two cargo containers 23 simultaneously to essentially double the operating capacity of the crane.
  • the term "single wire rope reeving system" will be further defined herein.
  • a pair of parallel aligned cargo container transport trolleys 19 are employed mounted for either independent or coordinated reciprocation along horizontal rails on the gantry 15 of the crane.
  • the transport trolleys are also called cargo container lifting spreader suspension trolleys as each individually suspends one of a pair of lifting spreaders 25 A & 25B thereunder.
  • the spreaders are utilized to engage and transport cargo containers 23 between pickup and deposition positions simultaneously or independently and, by means of the present invention, to lift and lower them independently with a new and novel integrated wire rope reeving system.
  • the two cargo containers 23 are engaged by separate lifting spreaders 25 disposed in parallel aligned orientation so that the loads are concentrated and balanced under the center of the crane gantry, whether one or two containers are lifted simultaneously, rather than off-balance as would occur if only one cargo container were being elevated by a tandem lift spreader.
  • the parallel aligned trolley/lifting spreader combinations effect a twin lift system which can handle different length cargo containers simultaneously because of the balanced weight distribution under the crane gantry when the cargo containers are elevated by the crane transport trolleys.
  • the wire rope reeving system of the present invention can be employed whether the transport trolleys 19 are formed to reciprocate with respect to each other in a direction collinear with the reciprocating directions of travel of the trolleys on the gantry rails 15 or if they are formed for integrated movement.
  • the trolleys can be independent or interconnected and are usually controlled by either a single or by separate wire rope drive systems (not shown) usually driven by wire rope trolley drive drums (not shown) located in a machinery house 27.
  • Computer controls for the trolley drive drums monitor the positions and dynamic conditions of the trolleys to prevent collisions, if they are independently operated, and arrest unsafe sway of the suspended loads.
  • the pair of separate lifting spreaders 25 are suspended from the spreader suspension trolleys 19 by means of a single wire rope reeving system for engaging parallel aligned containers in side-by-side orientation.
  • the spacing between the cargo containers is immaterial (except for preventing collisions and container sway) if the trolleys are capable of operating independently in horizontal travel on the gantry 15.
  • Hoisting and lowering the lifting spreaders independently with a single wire rope system is the capability of the present invention.
  • the wire rope reeving suspending the spreaders (by means of headblocks) is driven from wire rope sheave drive drums 29 disposed on the gantry of the quay crane 11 and fleets through sheaves 31 mounted on the spreader suspension trolleys.
  • FIG. 2 The positioning of the fleet through sheaves 37 is more accurately represented shown therein mounted at the corners of the headblocks 43.
  • the sheaves 37 are falsely shown suspended in the air and spindled by stretched (false) connections but correctly connected to the corners of the spreaders 25 (instead of connected to the corners of the headblocks which have been omitted/integrated into the spreaders).
  • the headblocks with sheaves correctly mounted and oriented thereon as shown in FIG. 2 have been omitted from FIG. 3 in order to clarify the wire rope reeving orientation represented by FIG. 3.
  • the wire rope sheave drive drums 29 are mounted in a machinery house 27 disposed at the shoreside end of the gantry 15 of the quay crane.
  • the sheave drive drums could be mounted on one of the trolleys, but that design has the defect of imposing heavier loads on the crane gantry especially if it is of a cantilevered design. If the drums are mounted on a trolley, rather than in a remote machinery house, usually positioned above a crane support leg, the drums are in effect still mounted on the gantry of the quay crane for purposes of the language of the accompanying claims.
  • the drive drums could be mounted anywhere on the crane and the wire ropes routed by sheaves to the gantry and that would still be the equivalent of mounted on the gantry, but such an arrangement would be impractical although still within the concept of the invention.
  • FIG. 3 of the drawings represents one half of the single wire rope reeving system.
  • a mirror image reeving system to FIG. 3 engages the other ends of the trolleys 19 and spreaders 25.
  • the twin lift wire rope reeving system driven by the main wire rope drive drums 29 on the crane gantry 15, each actuate a pair of wire ropes 33 A & 33 B which extend outboard to the end of the gantry where they are deadended 35.
  • Each of the pair of wire ropes suspends opposite ends of both of the lifting spreaders 25A & 25B.
  • a single wire rope system in this context means one wire rope system drives the separate lifting and lowering of loads by both of the two trolleys rather than having two independent wire rope systems, with separate drive motors, which would independently and separately control the lifting and lowering of the two trolley's suspended spreaders.
  • the pairs of wire ropes 33A & 33B are reeved over fleet through sheaves 31 on the trolleys, down and around fleet through sheaves 37 mounted on at the corners of the lifting spreader headblocks 43, suspended below the trolleys, back up to the trolleys and over additional fleet through sheaves 31 thereon, and then out to the end of the gantry 15 where they are deadended 35.
  • a pair of motor 39 driven wire rope sheave drive drums 41 are mounted at opposite ends of one of the transport trolleys 19 called the machine trolley 19A.
  • Each sheave drive drum is of the fleet around type and controls the wire ropes of one of the pair of wire ropes 33 A & 33B at opposite ends of the trolleys.
  • the sheave drive drums on the trolleys move the respective wrapped around wire rope and are controlled separately of the main wire rope drive drums 29 disposed in the machinery house 27 whereby the rotational speeds thereof are independent of the main drive drums and whereby the lifting spreaders can be lifted and lowered independently.
  • trolleys mounted at the end of the gantry (in the machinery house), having wire drive ropes secured to the trolleys, which independently operate/move the trolleys.
  • the trolleys could be interconnected at a fixed spaced relation with respect to each other, thereby eliminating the expense and need for one set of trolley drive motors but as a result reducing the capability or versatility of the crane.
  • the trolley drive motors could be mounted on the trolleys and drive the wheels thereof directly, but this would increase the gantry design loading and thereby the cost and designed weight of the gantry.
  • computer safety controls prevent the trolleys from colliding or hitting the ends of the gantry.
  • FIG.3 An example demonstrates how the single wire rope container suspension system works. Reference is made to FIG.3 for this explanation.
  • the sheave drive wire rope drums 41 on the machine trolley 19A are locked, both trolleys 19 are braked (held against movement on the rails), and the main wire rope drive drums 29 are activated: the lifting spreader 25 A under the machine trolley with the sheave drive drums thereon, is thereby raised or lowered.
  • both trolleys are braked, both the main wire rope drive drums 29 on the gantry and the sheave drive drums 41 on the machine trolley are actuated to move the wire rope pairs 33A & 33B at the same speed: the lifting spreader 25B under the passive trolley 19B is raised or lowered.
  • FIG. 4 of the drawings is a performance chart for the ratio of relative speeds in the single wire rope twin lift reeving system for a quay crane employing the present invention.
  • VI & V2 are the vertical hoist speeds of the cargo container lifting spreaders.
  • V3 represents the rope speed controlled by the wire rope drum 29.
  • V4 represents the rope speed controlled by the wire rope drive drums 41. In the case of trolley traversing, V4 is controlled by the trolley traversing speeds Vt.
  • This system permits independent tandem lifting by a cargo container handling crane by a single wire rope reeving system.
  • differential speeds can be controlled by hand (stick) throttles in the operators cab which comprise analog sliding speed controls combined with computer-controlled safety programs which control the speed and acceleration of the trolleys to minimize container sway and prevent collisions. Additional computer control can be included to the point that the operator just has controls for up and down buttons for the lifting spreaders and separate speed controls for the two trolleys. Sophisticated computer sensor controlled positioning of the lifting spreaders for engaging containers and lowering them into shipboard cells or onto dockside transporters are also utilized and available for inclusion in the system.
  • the present invention also includes the method of operation of a wire rope reeving system for twin lift cargo container handling by a crane.
  • the method comprises providing a single wire rope reeving system having a pair of parallel aligned container transport trolleys mounted for reciprocation along a horizontal gantry of the crane for suspending a pair of cargo containers thereunder for transporting said containers between pickup and deposition positions simultaneously.
  • a pair of synchronously driven main wire rope drive drums are provided mounted on the gantry of the crane, each actuating a pair of wire ropes which extend outboard to the end of the gantry where they are deadended.
  • the pairs of wire ropes are reeved through fleet through sheaves on the trolleys and through fleet through sheaves on the lifting spreader headblocks suspended below the trolleys by the wire ropes.
  • Each of the pair of wire ropes suspend opposite ends of both of the spreaders.
  • a pair of motor driven wire rope sheave drive drums are provided mounted at opposite ends of one of the trolleys and drive one pair of the wire ropes at respective opposite ends of the trolley.
  • the sheave drive drums on the trolleys are capable of having rotational speeds independent of the main drive drums disposed in the machinery house whereby the lifting spreaders can be lifted and lowered independently.
  • the rotational speeds of the main wire rope drive drums and the sheave drive wire rope drums can be controlled by analog hand throttles. Alternatively, the rotational speeds of the main wire rope drive drums and the sheave drive wire rope drums can be controlled by computer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

L’invention concerne un système de mouflage de câble métallique unique destiné à une grue de manutention de conteneur de fret à levage jumelé, permettant de lever et d’abaisser une paire de conteneurs agencés l’un à côté de l’autre, de manière indépendante ou simultanée.
PCT/US2009/050599 2009-07-14 2009-07-14 Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem WO2011008200A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SG2012000501A SG177504A1 (en) 2009-07-14 2009-07-14 A wire rope reeving system for tandem lift cargo container handling
KR1020127003327A KR20120049874A (ko) 2009-07-14 2009-07-14 탠덤 리프트 카고 컨테이너 처리용 와이어 로프 리빙 시스템
CN2009801605668A CN102548889A (zh) 2009-07-14 2009-07-14 用于串联升降集装箱处理的钢索支索系统
EP09847428A EP2454184A4 (fr) 2009-07-14 2009-07-14 Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem
PCT/US2009/050599 WO2011008200A1 (fr) 2009-07-14 2009-07-14 Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2009/050599 WO2011008200A1 (fr) 2009-07-14 2009-07-14 Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem

Publications (1)

Publication Number Publication Date
WO2011008200A1 true WO2011008200A1 (fr) 2011-01-20

Family

ID=43449617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/050599 WO2011008200A1 (fr) 2009-07-14 2009-07-14 Système de mouflage de câble métallique destiné à la manutention de conteneur de fret à levage tandem

Country Status (5)

Country Link
EP (1) EP2454184A4 (fr)
KR (1) KR20120049874A (fr)
CN (1) CN102548889A (fr)
SG (1) SG177504A1 (fr)
WO (1) WO2011008200A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102490667A (zh) * 2011-10-11 2012-06-13 科世达（上海）管理有限公司 一种汽车中控系统
CN104340865A (zh) * 2014-10-21 2015-02-11 太重（天津）滨海重型机械有限公司 起重机及其起升运行机构
US11465863B1 (en) 2021-09-10 2022-10-11 Stackloading Services Ltd. Systems and methods for moving containers between vehicles and platforms

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009801A2 (fr) * 2012-07-13 2014-01-16 Konecranes Plc Ensemble de transport de tonneau
US9786397B2 (en) 2012-07-13 2017-10-10 Konecranes Global Corporation Cask transport assembly
FI124474B (fi) * 2013-03-01 2014-09-15 Konecranes Oyj Nostoköysijärjestely nosturin nostovaunussa
CN103612982B (zh) * 2013-11-22 2016-02-03 中联重科股份有限公司 起重机的载重小车变幅系统及起重机
CN104249973B (zh) * 2014-10-11 2016-08-24 华电重工股份有限公司 一种上下小车缠绕系统
KR102205482B1 (ko) * 2015-06-16 2021-01-19 현대중공업 주식회사 해치 커버 및 이를 포함하는 컨테이너선
CN105000480A (zh) * 2015-07-17 2015-10-28 润邦卡哥特科工业有限公司 一种双主小车的集装箱起重机

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US5570986A (en) * 1994-01-03 1996-11-05 Paceco Corp. Cargo container transfer system for cranes
US6631816B1 (en) * 1999-03-18 2003-10-14 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Hoist

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CN100545076C (zh) * 2003-07-30 2009-09-30 上海振华重工(集团)股份有限公司 可吊双40英尺箱的集装箱起重机

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US5570986A (en) * 1994-01-03 1996-11-05 Paceco Corp. Cargo container transfer system for cranes
US6631816B1 (en) * 1999-03-18 2003-10-14 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Hoist

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102490667A (zh) * 2011-10-11 2012-06-13 科世达（上海）管理有限公司 一种汽车中控系统
CN104340865A (zh) * 2014-10-21 2015-02-11 太重（天津）滨海重型机械有限公司 起重机及其起升运行机构
US11465863B1 (en) 2021-09-10 2022-10-11 Stackloading Services Ltd. Systems and methods for moving containers between vehicles and platforms
US11655107B2 (en) 2021-09-10 2023-05-23 Stackloading Systems Ltd. Systems and methods for moving containers between vehicles and platforms

Also Published As

Publication number Publication date
EP2454184A1 (fr) 2012-05-23
EP2454184A4 (fr) 2013-03-13
SG177504A1 (en) 2012-02-28
KR20120049874A (ko) 2012-05-17
CN102548889A (zh) 2012-07-04

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