WO2000069767A1 - Power transfer system of circulating type gantry crane - Google Patents
Power transfer system of circulating type gantry crane Download PDFInfo
- Publication number
- WO2000069767A1 WO2000069767A1 PCT/KR2000/000502 KR0000502W WO0069767A1 WO 2000069767 A1 WO2000069767 A1 WO 2000069767A1 KR 0000502 W KR0000502 W KR 0000502W WO 0069767 A1 WO0069767 A1 WO 0069767A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spreader
- hook
- coupled
- trolley
- latches
- Prior art date
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
- 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
-
- 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
- B66C1/101—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 for containers
-
- 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
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
- B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
Definitions
- the present invention relates to a gantry crane for moving containers for freight transportation or for carrying heavy materials such as steel, and more particularly, to a power transfer system of a circulating type gantry crane for transferring power to trolleys while circulating around a boom of the circulating type gantry crane
- Conventional gantry cranes for loading and unloading containers are designed so that a hoist, a hook a trolley and a spreader move along a boom horizontally installed on a main tower pillar, in a state of being coupled to each other or connected to a steel cable
- trolleys are constructed so that they reciprocate between the location of a container to be carried and a loading location, and receive power from a power source via a drooping electric cable
- trolleys circulate along a track in a state of being separated from a hoist, so that it is difficult to supply power to the trolleys by connecting electric cables to the trolleys
- hoists corresponding to the trolleys of a conventional crane move slowly and only have to traverse a section of the length of the boom so that they move a short distance Therefore, the trolleys can be provided with power by connecting electric cables to the hoists
- An objective of the present invention is to provide a power transfer system of a circulating type gantry crane which is constructed so that containers are moved horizontally by trolleys and spreaders which are not connected to power cables, and the containers are lifted or laid down by power provided via hooks when spreaders have been coupled to the hooks, so that the loading/unloading speed and efficiency of containers are high.
- a power transfer system of a circulating type gantry crane including a spreader, a hook which is coupled to the spreader, a hoist which is connected to the hook by a steel cable to elevate the hook and a trolley which moves along a boom in a state of being coupled to the spreader
- the power transfer system characterized in that the spreader is selectively separated from and coupled to the trolley or the hook, and comprises first latches for coupling to the hook, second latches for coupling to the trolley and a power connection portion for operating the first and second latches with power received from a power source
- the hook has locking holes for introducing the first latches on the spreader, and a power transfer portion which is connected to the power connection portion and an external power source to provide power to the power connection portion
- the trolley has locking holes into which the second latches on the spreader are inserted and coupled First and second slits connected to the internal space of the spreader are formed on the upper surface of the spreader, first locking plates are formed
- a guide member for guiding the hook as it descends is fixed to the lateral side of each of the first latches of the spreader
- Each of the first and second latches is comprised of a support portion fixed onto the spreader, and a rotating portion which rotates over the support portion, a motor is installed within the spreader to rotate the rotating portion, and the driving shaft of the motor and the rotating portion are internally connected to each other such that the rotating portion is rotated by the driving of the motor
- At least two through holes are formed on the first and second locking plates, respectively, a support member having a pin insertion hole formed therein is fixed under each of the slits within the internal space of the spreader so that the first locking plate is inserted into the first slit and coupled thereto, and the second locking plate is inserted into the second slit and coupled thereto, a pin penetrates the through holes and the pin insertion hole in a state where the first and second locking plates are inserted into the slits, and insertion and separation of the pin are controlled by a motor which moves the pin lengthwise
- FIGS 1 to 3 are conceptual views for schematically illustrating the entire structure and operation of a gantry crane to which a power transfer system according to an embodiment of the present invention is applied,
- FIG 4 shows a spreader, a hook and a trolley in a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 5 is an exploded perspective view for illustrating the coupling relationship between a hook and a spreader in a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 6 is a cross-sectional view illustrating a way of coupling a locking plate to a spreader, in a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 7 is a view for explaining the principle of operation of a latch in a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 8 is an exploded perspective view for illustrating the coupling relationship between a trolley and a spreader in a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 9 is a perspective view schematically illustrating a locking hole formed in the trolley of FIG 8
- a gantry crane according to the present invention is constructed so that a plurality of trolleys 50 move along a boom 100 Any of the horizontal circulating type booms and the vertical circulating type booms disclosed in the applications previously filed by the present applicant can be used as a boom along which the trolleys 50 circulate
- Two hoists 40 are installed on the boom 100 One of the two hoists 40 is located on the side of the land, and the other hoist is located on the side of the sea These hoists 40 can move in the directions indicated by arrows a as necessary
- a hook 30 is connected to each of the hoists 40 via a steel cable 114
- the hook 30 elevates a container 10 by being lifted by the steel cable 114 in a state of being coupled to a spreader 20 which is directly combined with the container 10 As described later, the hook 30 is coupled to the spreader 20 to supply external power to the spreader 20 and control the position of an arm
- the spreader 20 ascends with the container 10, reaches the trolley 50, and is coupled to the trolley 50 At this time, the hook 30 is separated form the spreader 20, and consequently the container 10 is moved horizontally by the trolley 50 in a state of being coupled to the spreader 20
- FIGS 2 and 3 show loading of a container using a power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- FIG 2 shows a loading operation in a state where a trolley 50 enters under the hoist 40 waiting on the side of the land
- FIG 3 shows a loading operation in a state where the trolley 50 with the container 10 enters under the hoist waiting on the side of the sea
- a trolley 50 and a spreader 20 coupled to the bottom surface of the trolley, moving along a boom 100 in a direction indicated by arrow b, are held under a land-side hoist 40
- the land-side hoist 40 was positioned in advance and waits directly over a container 10 to be loaded
- the hook 30 descends from the hoist 40, passes through the trolley 50, and is coupled to the spreader 20
- a power transfer portion 36 (FIG 5) of the hook 30 is connected to a power connection portion 26 (FIG 5) of the spreader 20, so that external power is supplied to the spreader via the hook
- the trolley 50 is separated from the spreader 20
- a coupling means for the hook 30 and the spreader 20 will be described later
- the hook 30 descends to the container 10 while coupled to the spreader
- the hook 30 ascends again When the spreader 20 reaches the trolley 50, they are re- coupled by a power transfer system of the present invention to be described later, and the hook 30 is separated from the spreader 20 Thereafter, the hook 30 separated from the spreader 20 continuously ascends to a position over the trolley 50
- the trolley 50 moves over a loading/unloading position in a direction indicated by arrow c with the spreader 20 and the container 10 suspended from it
- the trolley 50 moves in a direction indicated by arrow c and enters under the sea-side hoist 40
- the sea-side hoist 40 is positioned in advance and waits directly over a location on which the container 10 is to be loaded
- the hook 30 descends from the hoist 40 and is coupled to the spreader 20 At this time, it is natural that the trolley 50 is separated from the spreader 20
- the container 10 When the hook 30 descends and the container 10 reaches a loading/unloading location, the container 10 is separated from the spreader 20 In this way, the loading of containers is carried out A method of separating the container 10 from the spreader 20 will be described later After the container 10 is loaded, the spreader 20 ascends together with the hook 30 and is re-coupled to the trolley 50 while being separated from the hook 30 After the spreader 20 is re-coupled to the trolley 50 as described above, it moves to the land along the boom 100, and then another waiting container can be moved in the same manner
- a trolley, a spreader and a hook are constructed so that they move rapidly along a boom while alternately repeating combination and separation These combination and separation stages are performed in the air, so that stability to prevent falls must be ensured
- two types of coupling devices are provided to achieve complete and secure combination between a spreader and a hook or between a spreader and a trolley, as described later
- FIG 4 shows a hoist, a hook, a trolley and a spreader installed on a boom of a circulating type gantry crane employing a power transfer system according to an embodiment of the present invention
- a boom 100 provides an internal space in the center
- a hoist 40 is installed with the internal space
- a hook 30 is connected to the bottom surface of the hoist 40 so that it ascends and descends suspended by a steel cable 114
- the center of a trolley 50 installed under the hoist 40 is hollow, as shown in FIG 8, so that the hook 30 can pass through the trolley 50 while ascending
- the power connection portion 26 is a type of terminal which is connected to the power transfer portion 36 of the hook 30 to receive electricity Also, the first latch 22 is coupled to a locking hole 32 formed on the bottom surface of the hook 30
- FIG 5 shows the hook 30, the spreader 20 and the container 10 to explain the power transfer system of a circulating type gantry crane according to an embodiment of the present invention
- grooves 12 are formed at the four corners of the upper surface of the container 10, and latches (not shown) installed on the bottom surface of the spreader 20 are coupled to the grooves 12 by being inserted thereinto, or separated therefrom
- latches installed on the bottom surface of the spreader 20 are coupled to the grooves 12 by being inserted thereinto, or separated therefrom
- This form of combination and separation between a container and a spreader is the same as in the prior art
- On the upper surface of the spreader 20 are installed four first latches
- the power transfer portions 36 of the hook 30 are terminals which receive external power
- a locking guide plate 23 is fixed on the outside of each of the first latches 22, and guides each of the first latches 22 on the spreader to be smoothly inserted into a corresponding locking hole 32 of the hook 30 when the hook 30 is coupled to the spreader 20
- Each of the first and second latches 22 and 24 is made up of a support portion 71 and a rotating portion 73
- the support portion 71 is fixed on the upper surface of the spreader 20, and the rotating portion 73 rotates a certain angle on the support portion 71
- the rotation of the rotating portion 73 is controlled by a motor 86 which is driven by external power as shown in FIG 7
- the rotating portions 73 rotate a certain angle in a state where the first latches 22 are inserted into the locking holes 32 of the hook 30, the hook 30 and the spreader 20 are combined with each other Undoubtedly, when the hook 30 is separated from the spreader 20, the rotating portions 73 are restored to their original locations
- the rotation angle of each of the rotating portions 73 is 90 degrees
- arms 21 provided on both sides of the spreader 20 advance and retreat with power received from the power connection portions 26, and thus their lengths are adjusted to the length of the container 10
- a motor (not shown) for moving the arms 21 is provided within the spreader 20
- a container guide plate 28 is attached to each edge of the arm 21 of the spreader 20
- the container guide plate 28 guides the spreader 20 against the container 10 as the spreader descends to be coupled to the container 10 Accordingly, it is preferable that each of the guide plates 28 has a lower portion that is widened
- the guide plates 28 are located over the spreader 20 by being pivoted in a direction indicated by arrow A after the combination with the container 10 is completed in order not to obstruct the movement of the spreader 20
- the locking holes 32 formed on the bottom surface of the hook 30 are formed to face the first latches 22, and has a space in which each of the inserted rotating portions 73 can rotate That is, each of the locking holes 32 has a rectangular shape that corresponds to the cross-section shape of each of the first latches 22 so that the rotating portion 73 of each of the first latches 22 is inserted into each locking hole, and rotates 90° to be coupled thereto
- First locking plates 35 are vertically fixed to both sides of the bottom surface of the hook 30 and first slits 25 are formed on both sides of the upper surface of the spreader 20 to receive the locking plates 35
- Each of the locking plates 35 has a hollowed central low portion so as not to hinder the horizontal movement of the arm 21
- through holes 34 for pins 82 of FIG 6 are formed on both sides of each of the locking plates 35 to prevent the locking plates from slipping out of the slits 25 after being inserted thereinto
- the pins that are inserted into the through holes 34 are installed within the spreader 20, and are fit into or separated from the through holes 34 by external power similar to the rotating portions 73 That is when the hook 30 descends against the spreader 20 the first latches 22 are inserted into the locking holes 32, and the first locking plates 35 are inserted into the first slits 25 Simultaneously, the rotating portions 73 are rotated, and the pins 82 of FIG 6 are inserted into the through holes 34, whereby the hook 30 is coupled to the spread
- a motor 81 is installed on one side of the support member 85
- a direct current motor that changes the direction of rotation according to the direction of current is preferred as the motor 81
- a pinion is fixed onto the driving shaft of the motor 81
- a rack 83 which interlocks with the pinon is horizontally placed over the driving shaft
- the rack 83 is combined with the pin 82 Therefore, when the motor 81 is driven the rack 83 is reciprocated by the rotation of the pinon, whereby the pin 82 is inserted into or separated from the pin insertion hole 84
- FIG 7 shows a means for rotating the rotating portion against the support portion
- a support portion 71 is fixed onto the upper surface of the spreader 20, and an extended shaft 87 that is rotated by a motor 86 is fixed to a rotating portion 73 installed on the support portion 71
- the extended shaft 87 is connected to the driving shaft of the motor 86, and vertically penetrates the support portion 71 so that its end is coupled to the rotating portion 73
- the rotating portion 73 is rotated against the support portion 71 within the locking hole 32 or 54 whereby the hook 30 or the trolley 50 is coupled to the spreader 20
- the rotating portion 73 is restored to its original location by the control of the motor 86, the latches 22 and 24 can be separated from the locking holes 32 and 54, respectively
- FIG 8 is an exploded perspective view for illustrating the coupling relationship between the trolley 50 and the spreader 20
- four legs 51 are vertically fixed on the bottom surface of the trolley 50
- a locking hole 54 of FIG 9 for each of the second latches 24 is formed on the bottom surface of each of the legs 51
- the function and shape of the locking holes 54 are the same as those of the locking holes 32
- the second latches 24 are internally connected to the power connection portion 26, and perform the same function and operation as the first latches 22 described with reference to FIG 7 Accordingly, when the second latches 24 are inserted into the locking holes 54 as the hook 30 coupled to the spreader 20 ascends, the rotating portion of each of the second latches 24 is rotated, and thus the second latches 24 are locked inside each of the locking holes 54
- second locking plates 57 are installed on both sides of the bottom surface of the trolley 50, and second slits 27 for the second locking plates 57 are formed on the spreader 20 Through holes 53 capable of receiving the pins 82 are formed on each of the second locking plates 57 Coupling and separation between the spreader 20 and the second locking plates 57 are achieved as described above with reference to FIG 6
- first and second locking plates 35 and 57 must be coupled to a spreader
- the second locking plate 57 must be coupled to the spreader 20 before the first locking plate 35 is separated from the spreader 20
- first locking plate 35 must be coupled to the spreader 20 before the second locking plate 57 is separated from the spreader 20 Therefore, the above-described separations and couplings are achieved not simultaneously but sequentially
- FIG 9 shows a locking hole formed in a trolley
- a locking hole 54 is formed on the bottom surface of each of the legs 51 of the trolley 50
- a second latch 24 is inserted and locked into the locking hole 54
- separation and coupling between the trolley 50 and the spreader 20 and between the hook 30 and the spreader 20 are repeated That is, when the trolley 50 with the spreader 20 suspended from it arrives directly over a waiting container, the hook 30 descends, passes through the trolley 50, and is coupled to the spreader 20, as described above Next, the second latches 24 on the spreader 20 are restored to their original locations, and simultaneously, the second locking plates 57 are separated from the spreader 20
- a spreader can pick up a container in a state of being coupled to a hook
- the mechanism of separation and coupling between the spreader and the hook and between the spreader and the trolley is simple, so that stable and safe loading and unloading can be achieved
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU47848/00A AU4784800A (en) | 1999-05-19 | 2000-05-10 | Power transfer system of circulating type gantry crane |
EP00929940A EP1218281A1 (en) | 1999-05-19 | 2000-05-19 | Power transfer system of circulating type gantry crane |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990018085A KR100306297B1 (en) | 1999-05-19 | 1999-05-19 | Power transfer system of gantry crane |
KR1999/18085 | 1999-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000069767A1 true WO2000069767A1 (en) | 2000-11-23 |
Family
ID=19586569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2000/000502 WO2000069767A1 (en) | 1999-05-19 | 2000-05-19 | Power transfer system of circulating type gantry crane |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1218281A1 (en) |
KR (1) | KR100306297B1 (en) |
CN (1) | CN1351572A (en) |
AU (1) | AU4784800A (en) |
WO (1) | WO2000069767A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014114374A1 (en) * | 2013-01-24 | 2014-07-31 | Dellner Components Sp.Z.O.O | A coupling means for electrically connecting a head-block to a spreader in a container-lifting arrangement. |
EP3026003A1 (en) * | 2014-11-28 | 2016-06-01 | Axzion GKS Stahl und Maschinenbau GmbH | Adapter for load bearing devices |
WO2017114531A1 (en) * | 2015-12-30 | 2017-07-06 | Vestas Wind Systems A/S | Lifting frame for a wind turbine blade |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100991286B1 (en) | 2008-05-29 | 2010-11-01 | 구재회 | Support spreader for over-height container |
KR101125039B1 (en) * | 2009-12-24 | 2012-03-22 | 한국과학기술원 | Crane spreader and auto landing method thereof |
FI10466U1 (en) * | 2014-04-04 | 2014-04-28 | Konecranes Oyj | Moving crane |
MY198132A (en) * | 2016-02-01 | 2023-08-07 | Elme Spreader Ab | Spreader for lifting intermodal container |
CN107032226A (en) * | 2016-12-09 | 2017-08-11 | 天津五洲国际集装箱码头有限公司 | A kind of track bridge suspender guide plate |
KR102152011B1 (en) * | 2018-06-15 | 2020-09-04 | 전남대학교산학협력단 | A cable robot for a vinylhouse crop management |
CN109399440B (en) * | 2018-11-09 | 2021-02-05 | 中船华南船舶机械有限公司 | Folding arm type positioning pin device for hoisting equipment |
CN109399457B (en) * | 2018-11-09 | 2021-02-05 | 中船华南船舶机械有限公司 | Folding arm type steel wire rope centering device for hoisting equipment |
CN109399470B (en) * | 2018-11-09 | 2020-05-01 | 中船华南船舶机械有限公司 | Folding arm type hoisting equipment |
CN109626236B (en) * | 2018-11-09 | 2020-05-22 | 中船华南船舶机械有限公司 | Control method for suspension arm and lifting appliance of folding arm type lifting equipment |
CN109399449B (en) * | 2018-11-09 | 2020-05-01 | 中船华南船舶机械有限公司 | Folding arm type lifting appliance for lifting equipment |
CN113336103A (en) * | 2021-05-15 | 2021-09-03 | 南京昱晟机器人科技有限公司 | Discharging system and method for horizontal carrying unmanned vehicle for port containers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3734555A (en) * | 1970-08-26 | 1973-05-22 | Tax | Convertible carrier frame for shipping containers |
US5163726A (en) * | 1991-10-15 | 1992-11-17 | Bromma, Inc. | Spreader bar and overheight attachment with automatic latching mechanism |
-
1999
- 1999-05-19 KR KR1019990018085A patent/KR100306297B1/en not_active IP Right Cessation
-
2000
- 2000-05-10 AU AU47848/00A patent/AU4784800A/en not_active Abandoned
- 2000-05-19 WO PCT/KR2000/000502 patent/WO2000069767A1/en not_active Application Discontinuation
- 2000-05-19 EP EP00929940A patent/EP1218281A1/en not_active Withdrawn
- 2000-05-19 CN CN00807728A patent/CN1351572A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3734555A (en) * | 1970-08-26 | 1973-05-22 | Tax | Convertible carrier frame for shipping containers |
US5163726A (en) * | 1991-10-15 | 1992-11-17 | Bromma, Inc. | Spreader bar and overheight attachment with automatic latching mechanism |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014114374A1 (en) * | 2013-01-24 | 2014-07-31 | Dellner Components Sp.Z.O.O | A coupling means for electrically connecting a head-block to a spreader in a container-lifting arrangement. |
US9527698B2 (en) | 2013-01-24 | 2016-12-27 | Dellner Components Sp. Z.O.O. | Coupling means for electrically connecting a head-block to a spreader in a container-lifting arrangement |
EP3026003A1 (en) * | 2014-11-28 | 2016-06-01 | Axzion GKS Stahl und Maschinenbau GmbH | Adapter for load bearing devices |
WO2017114531A1 (en) * | 2015-12-30 | 2017-07-06 | Vestas Wind Systems A/S | Lifting frame for a wind turbine blade |
JP2019503314A (en) * | 2015-12-30 | 2019-02-07 | ヴェスタス ウィンド システムズ エー/エス | Lift frame for wind turbine blade |
US10883477B2 (en) | 2015-12-30 | 2021-01-05 | Vestas Wind Systems A/S | Lifting frame for a wind turbine blade |
Also Published As
Publication number | Publication date |
---|---|
CN1351572A (en) | 2002-05-29 |
EP1218281A1 (en) | 2002-07-03 |
KR20000074277A (en) | 2000-12-15 |
KR100306297B1 (en) | 2001-09-24 |
AU4784800A (en) | 2000-12-05 |
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