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WO2024250365A1 - Pont portique - Google Patents

Pont portique Download PDF

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Publication number
WO2024250365A1
WO2024250365A1 PCT/CN2023/104580 CN2023104580W WO2024250365A1 WO 2024250365 A1 WO2024250365 A1 WO 2024250365A1 CN 2023104580 W CN2023104580 W CN 2023104580W WO 2024250365 A1 WO2024250365 A1 WO 2024250365A1
Authority
WO
WIPO (PCT)
Prior art keywords
gantry crane
lifting
telescopic
buffer
rotating column
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2023/104580
Other languages
English (en)
Chinese (zh)
Inventor
杨志远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Harbour Engineering Co Ltd
Original Assignee
China Harbour Engineering 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
Application filed by China Harbour Engineering Co Ltd filed Critical China Harbour Engineering Co Ltd
Priority to ZA2023/08823A priority Critical patent/ZA202308823B/en
Publication of WO2024250365A1 publication Critical patent/WO2024250365A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety 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
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • 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

Definitions

  • the present invention relates to the technical field of wind protection for gantry cranes, and more specifically, to a gantry crane.
  • Gantry crane generally refers to a gantry crane, or a bridge crane, which is a crane running on tracks.
  • the crane runs longitudinally on the tracks laid on both sides, and the crane's bridge runs horizontally on the tracks, forming a rectangular working range, so that materials can be lifted using the space under the bridge without being hindered by ground equipment.
  • the characteristic of the crane is that it can make the heavy objects hung on the spreader (hook or other picking device) realize vertical lifting or horizontal movement in space. Cranes are widely used in indoor and outdoor warehouses, factories, docks and open storage yards.
  • An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.
  • a gantry crane comprising:
  • a pair of stabilizing hook mechanisms the pair of stabilizing hook mechanisms are relatively arranged on the cross beams on the legs of the gantry crane body, the stabilizing hook mechanisms include a lifting structure fixed on the cross beam, a telescopic structure fixed on the lifting end of the lifting structure, and a stopper rotatably connected to the telescopic end of the telescopic structure, wherein the telescopic end of the telescopic structure is arranged toward the center of the gantry crane body;
  • a receiving mechanism which is sleeved on the suspension rope of the gantry crane body and is arranged close to the suspension device of the gantry crane body, and the receiving mechanism has a certain free rotation space in the horizontal direction relative to the suspension rope;
  • the height of the lifting end of the lifting structure and the telescopic length of the telescopic end of the telescopic structure are adjusted, and a pair of stable
  • the abutment block of the hook structure is relatively abutted against the side wall of the receiving mechanism.
  • At least two groups of buffer mechanisms are further included, and the two groups of buffer mechanisms are respectively arranged on the lifting ends of a pair of lifting structures in a relatively opposite manner, and the buffer mechanisms include:
  • a rotating column which is rotatably connected to the lifting end of the lifting structure, and a limiting plate is provided on the top of the rotating column;
  • a lower card plate which is fixed on the rotating column, and is provided with a plurality of slide grooves arranged radially along the rotating column, a slider is slidably provided on the slide groove, and a buffer plate is hinged on the slider;
  • An upper clamping plate which is movably sleeved on the rotating column, and the upper clamping plate is hinged to the other side of the plurality of buffer plates one by one, and the upper side of the buffer plate is close to the rotating column, and the lower side is far away from the rotating column;
  • the two ends of the vertical spring are respectively fixed on the lower clamping plate and the upper clamping plate.
  • the receiving mechanism includes an outer shell having a vertically penetrating passage formed on the outer shell, the passage being movably sleeved on the outside of the sling, and a plurality of chains being provided on the upper and lower surfaces of the outer shell, the other ends of the chains being fixed on the sling.
  • the receiving mechanism further comprises a power supply box and a U-shaped electromagnet arranged in the outer shell, and a power supply arranged in the power supply box for supplying power to the U-shaped electromagnet;
  • the abutment block is hollow and contains magnets.
  • the magnetic poles of the magnets in the two abutment blocks facing each other are opposite, and the magnetic poles of the U-shaped electromagnet after power is supplied are also opposite.
  • a plurality of circular holes are formed on the bottom surface of the outer shell, an inner shell is provided in the outer shell, and the U-shaped electromagnet is accommodated in the inner shell.
  • the portions of the outer shell corresponding to the two magnetic poles of the U-shaped electromagnet are recessed inward to form a groove, and the inner side wall of the groove is in contact with the inner shell.
  • it further comprises a plurality of transverse springs, which are correspondingly arranged in a plurality of slide grooves, and two ends of the transverse springs are respectively fixed to one end of the slide groove close to the rotating column and the sliding block.
  • the buffer plate is fan-shaped, and a plurality of buffer plates form a truncated cone-shaped structure that is smaller at the top and larger at the bottom.
  • each group of buffer mechanisms includes two buffer mechanisms, and are arranged relatively on both sides of the stabilizing hook mechanism along the direction of the gantry crane track.
  • the lifting structure and the telescopic structure are both electric jacks.
  • the height of the lifting end of the lifting structure and the telescopic length of the telescopic end of the telescopic structure are adjusted, and the abutment blocks of a pair of stabilizing hook structures are relatively abutted against the side walls of the receiving mechanism to achieve the purpose of stabilizing the suspended objects.
  • the buffering effect of different wind forces can be adapted to achieve the purpose of stabilizing the gantry crane and preventing it from tipping over.
  • FIG1 is a schematic diagram of the side structure of the gantry crane according to one technical solution of the present invention.
  • FIG2 is a front structural schematic diagram of the gantry crane according to one technical solution of the present invention.
  • FIG2 is a front structural schematic diagram of the gantry crane according to one technical solution of the present invention.
  • FIG3 is a detailed diagram of the receiving mechanism of one technical solution of the present invention.
  • FIG4 is a schematic structural diagram of the U-shaped electromagnet according to one technical solution of the present invention.
  • FIG5 is a top view of the buffer mechanism according to one technical solution of the present invention in a windless state
  • FIG6 is a top view of the buffer mechanism according to one technical solution of the present invention in a strong wind state
  • FIG. 7 is a top view of the lower card plate of one of the technical solutions of the present invention.
  • support leg 1 cross beam 2, lifting rope 3, lifting device 4, hook stabilizing mechanism 100, lifting structure 11, telescopic structure 12, stop block 13, receiving mechanism 200, outer shell 21, chain 22, power supply box 23, U-shaped electromagnet 24, inner shell 25, groove 26, buffer mechanism 300, mounting plate 14, rotating column 31, Limiting plate 32 , lower clamping plate 33 , sliding groove 34 , sliding block 35 , buffer plate 36 , upper clamping plate 37 , vertical spring 38 , transverse spring 39 , track 5 .
  • the present invention provides a gantry crane, comprising:
  • the gantry crane body comprises a support leg 1, a crossbeam 2, a lifting rope 3 and a lifting device 4, wherein the lifting device 4 is usually a lifting hook;
  • a pair of stabilizing hook mechanisms 100 are relatively arranged on the crossbeam 2 on the legs 1 of the gantry crane body.
  • the stabilizing hook mechanisms 100 include a lifting structure 11 fixed on the crossbeam 2, a telescopic structure 12 fixed on the lifting end of the lifting structure 11, and a stopper 13 rotatably connected to the telescopic end of the telescopic structure 12, wherein the telescopic end of the telescopic structure 12 is arranged toward the center of the gantry crane body; the lifting structure 11 and the telescopic structure 12 usually adopt electric jacks or electric cylinders.
  • the advantage of the electric jack is that the bearing capacity is stronger and can match the heavy objects suspended in the sling 4.
  • the stopper 13 is used to cooperate with the receiving structure to transmit the contact force applied by the telescopic structure 12 and reduce the shaking of the receiving structure.
  • the stopper 13 and the lifting end of the lifting structure 11 are both provided with lugs with holes, and the lugs with holes are connected together by a pin shaft to achieve a rotational connection.
  • the rotation connection allows a certain amount of free movement space between the stop block 13 and the lifting structure 11, thereby reducing hard collisions between the stop block 13 and the receiving mechanism.
  • the receiving mechanism 200 is sleeved on the suspension rope 3 of the gantry crane body and is arranged near the sling 4 of the gantry crane body.
  • the receiving mechanism 200 has a certain free rotation space in the horizontal direction relative to the suspension rope 3; the receiving mechanism 200 is used to provide a force-bearing position between the stop block 13 and the suspension rope 3, so as to stabilize the position of the suspension rope 3 through the hook stabilizing mechanism 100, and finally stabilize the suspended objects to prevent the objects from shaking under the action of strong winds.
  • the receiving mechanism 200 is arranged close to the objects, so that the point of action is close to the suspended objects, thereby significantly reducing the amplitude of the shaking of the objects.
  • the setting of the receiving mechanism 200 having a certain free rotation space in the horizontal direction relative to the suspension rope 3 can allow the receiving mechanism 200 to rotate, while the suspension rope 3 remains in its original position, which has a certain buffering force effect.
  • the height of the lifting end of the lifting structure 11 and the telescopic length of the telescopic end of the telescopic structure 12 are adjusted, and a pair of abutment blocks 13 of the stabilizing hook structure are relatively abutted against the side wall of the receiving mechanism 200 to achieve the purpose of stabilizing the suspended objects.
  • the receiving mechanism 200 can be a pair of steel plates, or other components that can contact the stopper 13.
  • the present invention preferably has an outer shell 21, which is provided with a vertically penetrating channel, and the channel is movably sleeved on the outside of the sling 3.
  • the upper and lower surfaces of the outer shell 21 are provided with a plurality of chains 22, and the other ends of the chains 22 are fixed to the sling 3.
  • the outer shell 21 exists in the form of a wider contact surface, which is convenient for the stopper 13 to quickly contact and abut.
  • the connection method using the chain 22 can fix the outer shell 21 to the sling 3, and can also satisfy that the outer shell 21 has sufficient freedom in the horizontal direction.
  • the receiving mechanism 200 also includes a power box 23 and a U-shaped electromagnet 24 arranged in the outer shell 21, and a power supply arranged in the power box 23 for supplying power to the U-shaped electromagnet 24; when the power switch is turned on, the U-shaped electromagnet 24 is powered, and the U-shaped electromagnet 24 generates magnetism, and the two ends of the U-shaped electromagnet 24 are respectively an N pole and an S pole, and the N pole and the S pole are respectively close to the opposite side walls of the outer shell 21, and the U-shaped electromagnet 24 is placed horizontally, and the empty space in the middle of the U-shaped electromagnet 24 can be freely passed through by the suspension rope 3 without affecting the operation of the suspension rope 3.
  • the switch of the power supply of the U-shaped electromagnet 24 can be remotely controlled, such as the infrared controller induction switch commonly used in the prior art.
  • the power supply adopts a storage lithium battery, and the remote control and storage lithium battery methods can reduce the line routing.
  • the abutment 13 is hollow, and contains magnets, and the magnetic poles of the magnets in the two abutment 13 facing each other are opposite, and the magnetic poles of the U-shaped electromagnet 24 after power is turned on are also opposite. Magnets are also arranged on the abutment 13 on both sides of the outer shell 21, and the magnetic poles are matched to achieve magnetic attraction between the two abutment 13 and the two sides of the outer shell 21, respectively. This can not only enhance the abutment force, but also guide and adjust the outer shell 21 from the deviated position due to the effect of magnetic attraction when the abutment 13 has not yet abutted against the outer shell 21, and is more conducive to the smooth contact between the abutment 13 and the outer shell 21.
  • a plurality of circular holes are formed on the bottom surface of the outer shell 21, and an inner shell 25 is provided inside the outer shell 21.
  • the inner shell 25 accommodates the U-shaped electromagnet 24. When it rains, rainwater enters the outer shell 21 and can be quickly discharged from the circular holes.
  • the U-shaped electromagnet 24 is protected in the inner shell 25 to reduce damage to the U-shaped electromagnet 24.
  • the parts of the outer shell 21 corresponding to the two magnetic poles of the U-shaped electromagnet 24 are recessed inward to form a groove 26, and the inner wall of the groove 26 is in contact with the inner shell 25.
  • the stop block 13 can be guided to contact the position of the groove 26, which is closer to the U-shaped electromagnet 24 and has a stronger magnetic attraction.
  • It also includes at least two groups of buffer mechanisms 300, which are respectively arranged on the lifting ends of a pair of lifting structures 11.
  • a mounting plate 14 is arranged on the lifting ends, and the fixed end of the telescopic structure 12 is mounted on the mounting plate 14. The outer position of the mounting plate 14 is used to install the buffer mechanism 300, so that the height of the buffer mechanism 300 can be adjusted by adjusting the lifting structure 11 to adapt to the buffering effect of different wind forces.
  • the buffer mechanism 300 comprises:
  • the rotating column 31 is rotatably connected to the mounting plate 14 of the lifting structure 11, and a limit plate 32 is provided on the top of the rotating column 31.
  • a bearing is provided on the mounting plate 14, and the lower end of the rotating column 31 is fixed on the bearing to achieve a rotatable connection.
  • the limit plate 32 is preferably a circular plate fixed on the top of the rotating column 31, and is used to limit the upper clamping plate 37 from detaching from the rotating column 31 under the action of elastic force.
  • the lower clamping plate 33 is fixed on the rotating column 31 and is arranged near the lower end of the rotating column 31.
  • the lower clamping plate 33 is provided with a plurality of A slide groove 34 is arranged radially along the rotating column 31, and a slider 35 is slidably arranged on the slide groove 34, and a buffer plate 36 is hinged on the slider 35. Lugs with holes are arranged on the lower end of the buffer plate 36 and the slider 35, and then connected by a pin shaft to achieve hinge connection; the slider 35 can slide back and forth on the slide groove 34, driving the lower end of the buffer plate 36 to slide back and forth along the radial direction of the rotating column 31 and rotate at the same time.
  • the upper clamping plate 37 is movably mounted on the rotating column 31.
  • the upper clamping plate 37 can move up and down along the axis of the rotating column 31.
  • the upper clamping plate 37 is hinged to the other side of the plurality of buffer plates 36 one by one. Lugs with holes are provided on the upper end of the buffer plate 36 and the outer periphery of the upper clamping plate 37, and then connected by a pin shaft to achieve hinge connection.
  • the vertical spring 38 whose two ends are respectively fixed on the lower clamping plate 33 and the upper clamping plate 37, is a key component for realizing the buffer plate 36 to buffer the wind force.
  • the upper end of the buffer plate 36 presses the vertical spring 38 downward and rotates at the same time, forcing the lower end of the buffer plate to slide radially outward and rotate at the same time, thereby playing the role of buffering the wind force.
  • the ultimate source of the counterforce for the buffer plate 36 is the mounting plate 14 and the gantry crane body, thereby achieving the role of stabilizing the gantry crane and preventing it from tipping over.
  • the buffer plate 36 moves upward under the elastic force of the vertical spring 38 until the upper clamping plate 37 abuts against the limit plate 32, and the lower end of the buffer plate 36 returns to the initial position along the slide groove 34.
  • transverse spring 39 which are correspondingly arranged in the plurality of slide slots 34, and the two ends of the transverse spring 39 are respectively fixed to one end of the slide slot 34 close to the rotating column 31 and the slider 35.
  • the transverse spring 39 is used to enhance the buffering force, and the transverse spring 39 increases the force required when the buffer plate 36 slides outward along the slide slot 34.
  • the buffer plates 36 are fan-shaped, and multiple buffer plates 36 form a truncated cone-shaped structure with a small top and a large bottom, which increases the contact area with the wind, thereby enhancing the strong buffering effect.
  • a certain gap is set between two adjacent buffer plates 36 to avoid mutual interference when the buffers move and rotate.
  • the two buffer mechanisms 300 are relatively arranged on the mounting plate 14, which can buffer the wind coming from both sides of the gantry crane body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

Pont portique, comprenant : un corps de pont portique ; une paire de mécanismes de stabilisation de crochet (100) qui sont agencés de manière opposée sur des traverses (2) sur des pieds de support (1) du corps de pont portique, chaque mécanisme de stabilisation de crochet (100) comprenant une structure de levage/d'abaissement (11) fixée sur la traverse (2), une structure télescopique (12) fixée à une extrémité de levage/d'abaissement de la structure de levage/d'abaissement (11), et un bloc de butée (13) relié en rotation à une extrémité télescopique de la structure télescopique (12), et les extrémités télescopiques des structures télescopiques (12) étant agencées en direction du centre du corps de pont portique ; et un mécanisme de palier (200), qui est monté sur un câble de levage (3) du corps de pont portique et est agencé à proximité d'un outil de levage (4) du corps de pont portique, le mécanisme de palier (200) présentant un certain espace de rotation libre par rapport au câble de levage (3) dans la direction horizontale. La hauteur de l'extrémité de levage/d'abaissement de la structure de levage/d'abaissement (11) et la longueur d'étirement de l'extrémité télescopique de la structure télescopique (12) sont réglées, et les blocs de butée (13) de la paire de mécanismes de stabilisation de crochet (100) viennent en butée de manière opposée contre les parois latérales du mécanisme de palier (200). Selon le pont portique, des articles sont fermement verrouillés et suspendus de manière stable par la paire de mécanismes de stabilisation de crochet (100) et le mécanisme de palier (200), de sorte que l'effet bénéfique de la résistance au vent du pont portique soit amélioré.
PCT/CN2023/104580 2023-06-06 2023-06-30 Pont portique Pending WO2024250365A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2023/08823A ZA202308823B (en) 2023-06-06 2023-09-18 Gantry crane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310660859.4 2023-06-06
CN202310660859.4A CN116573540A (zh) 2023-06-06 2023-06-06 龙门吊

Publications (1)

Publication Number Publication Date
WO2024250365A1 true WO2024250365A1 (fr) 2024-12-12

Family

ID=87535840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/104580 Pending WO2024250365A1 (fr) 2023-06-06 2023-06-30 Pont portique

Country Status (3)

Country Link
CN (1) CN116573540A (fr)
WO (1) WO2024250365A1 (fr)
ZA (1) ZA202308823B (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10279264A (ja) * 1997-03-31 1998-10-20 Masahiro Makino 磁力式可動フック
US20170129749A1 (en) * 2015-11-06 2017-05-11 Fundacion Tecnalia Research and Innovation Application and method for positioning and orientating a load
CN207566767U (zh) * 2017-11-01 2018-07-03 福建省三星电气股份有限公司 一种水利插板平衡吊车
CN112938754A (zh) * 2021-03-05 2021-06-11 宁波市凹凸重工有限公司 一种门式起重机的动态防风辅助装置
CN215886070U (zh) * 2021-06-01 2022-02-22 中国能源建设集团山西电力建设第一有限公司 一种起重机抗风防滑装置
CN217051375U (zh) * 2022-03-29 2022-07-26 河南省晟源起重机械有限公司 一种电动葫芦双梁起重机
CN217417932U (zh) * 2022-02-15 2022-09-13 山东法华然文化传媒有限公司 一种建筑施工用吊装装置
CN116062629A (zh) * 2023-04-06 2023-05-05 河南大方重型装备有限公司 一种吊装稳定性高的钢结构桥梁施工悬吊机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10279264A (ja) * 1997-03-31 1998-10-20 Masahiro Makino 磁力式可動フック
US20170129749A1 (en) * 2015-11-06 2017-05-11 Fundacion Tecnalia Research and Innovation Application and method for positioning and orientating a load
CN207566767U (zh) * 2017-11-01 2018-07-03 福建省三星电气股份有限公司 一种水利插板平衡吊车
CN112938754A (zh) * 2021-03-05 2021-06-11 宁波市凹凸重工有限公司 一种门式起重机的动态防风辅助装置
CN215886070U (zh) * 2021-06-01 2022-02-22 中国能源建设集团山西电力建设第一有限公司 一种起重机抗风防滑装置
CN217417932U (zh) * 2022-02-15 2022-09-13 山东法华然文化传媒有限公司 一种建筑施工用吊装装置
CN217051375U (zh) * 2022-03-29 2022-07-26 河南省晟源起重机械有限公司 一种电动葫芦双梁起重机
CN116062629A (zh) * 2023-04-06 2023-05-05 河南大方重型装备有限公司 一种吊装稳定性高的钢结构桥梁施工悬吊机

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Publication number Publication date
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CN116573540A (zh) 2023-08-11

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