CN111847267A - Cantilever crane - Google Patents

Cantilever crane Download PDF

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Publication number
CN111847267A
CN111847267A CN202010772671.5A CN202010772671A CN111847267A CN 111847267 A CN111847267 A CN 111847267A CN 202010772671 A CN202010772671 A CN 202010772671A CN 111847267 A CN111847267 A CN 111847267A
Authority
CN
China
Prior art keywords
hoisting
wheel
module
main beam
cantilever crane
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
CN202010772671.5A
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Chinese (zh)
Inventor
蔡风华
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.)
Guangdong Port Zhong Lv Jian Technology Co ltd
Original Assignee
Guangdong Port Zhong Lv Jian Technology 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 Guangdong Port Zhong Lv Jian Technology Co ltd filed Critical Guangdong Port Zhong Lv Jian Technology Co ltd
Priority to CN202010772671.5A priority Critical patent/CN111847267A/en
Publication of CN111847267A publication Critical patent/CN111847267A/en
Priority to PCT/CN2020/133374 priority patent/WO2022027883A1/en
Pending legal-status Critical Current

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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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
    • 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
    • B66C13/00—Other constructional features or details
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • 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
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • 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
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/201—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided from above, e.g. by ceilings of buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/706—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
    • B66C9/12—Undercarriages or bogies, e.g. end carriages, end bogies with load-distributing means for equalising wheel pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/14—Trolley or crane travel drives

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention provides a cantilever type crane which comprises a hanging beam, a hanging point module, a main beam walking driving module, a hoisting module and a loading module, wherein the hanging beam is arranged at the top end of an inner wall of a building; the girder includes last slide rail, lower slide rail, it has the spout to go up the slide rail inboard. The cantilever crane can be installed in the inner wall of a building, can hoist equipment into the building, has a simple structure and can bear larger weight.

Description

Cantilever crane
Technical Field
The invention relates to the technical field of cranes, in particular to a cantilever type crane.
Background
The loop wheel machine is often applied to the building field, and large-scale building structure crowd needs to have the large-scale equipment of many high-ends (fire control equipment, alarm equipment, heating equipment, refrigeration plant etc.), and some high-tech equipment can not install in the construction, must install after the building is accomplished. However, when the conventional crane is used, the large equipment cannot be transferred into the building after the building is finished, and great trouble is brought to the installation of construction workers.
Disclosure of Invention
In view of the above problems, the present invention provides a cantilever crane, which can be installed in an inner wall of a building, can hoist equipment into the building, has a simple structure, and can bear a large weight.
In order to achieve the purpose, the invention is solved by the following technical scheme:
a cantilever type crane comprises a hanging beam arranged at the top end of an inner wall of a building, a hanging point module, a main beam positioned at the lower side of the hanging beam and connected with the hanging beam in a sliding manner, a main beam walking driving module used for driving the main beam to slide, a hoisting module connected with the main beam in a sliding manner, and a hoisted object hung at the lower end of the hoisting module;
the main beam comprises an upper slide rail and a lower slide rail, and a slide groove is formed in the inner side of the upper slide rail;
the hoisting point module comprises a horizontal wheel support, a rear horizontal wheel support, a front hoisting point wheel, a front horizontal wheel and a rear hoisting point wheel, wherein the front hoisting point wheel and the front horizontal wheel are connected to the lower end of the horizontal wheel support, the rear hoisting point wheel and the rear horizontal wheel are connected to the lower end of the rear horizontal wheel support, the front hoisting point wheel and the rear hoisting point wheel are rotatably connected to the lower end of the upper sliding rail, and the front horizontal wheel and the rear horizontal wheel are movable in the inner side of the sliding groove.
Specifically, the cross section of the hanging beam is of an I-shaped structure.
Specifically, the girder is kept away from hoisting point module one end still is equipped with the tight module in antiskid top, the tight module in antiskid top includes the loading board, fixes adjusting device on the loading board, is located the elevator of adjusting device upside, connect the counter pressure wheel of elevator upper end, counter pressure wheel upper end with girder lower extreme is inconsistent.
Specifically, the girder walking drive module includes with girder fixed connection's counter weight, connect and be in the wheelset fixed plate of counter weight upper end, fix girder driving motor on the wheelset fixed plate, connect and be in the drive wheel on the girder driving motor output shaft, the drive wheel is located the hanging beam inboard and with the hanging beam rotates to be connected.
Specifically, counter weight one end still is connected with the electronic box support, be fixed with first electric box on the electronic box support.
Specifically, still be equipped with slide-wire frame between last slide rail, the slide-wire frame goes up sliding connection and has a plurality of jack-up slide-wire frames, sliding connection has first C type track assembly pulley on the jack-up slide-wire frame, the wire of first electric box is taken and is established on the first C type track assembly pulley.
Specifically, the hoisting module comprises a hoisting motor, a hoisting rope connected to an output shaft of the hoisting motor, and a lifting hook connected to the bottom of the hoisting rope, and the object to be hoisted is hung on the lifting hook.
Specifically, hanging beam one side still is equipped with girder slide-wire frame, sliding connection has second C type track assembly pulley on the girder slide-wire frame, hoisting motor one end still is connected with the second electric box, the wire of second electric box is taken and is established on the second C type track assembly pulley.
Specifically, the hoisted object is a loading vehicle.
The invention has the beneficial effects that:
the cantilever crane can be installed in the inner wall of a building, when in use, the main beam traveling driving module is used for extending out a lifting beam, high-end equipment below 10 tons can be lifted into the building, the heavy weight can be borne, the lifting point module is additionally provided, and a front lifting point wheel and a rear lifting point wheel for supporting an upper sliding rail and a front horizontal wheel and a rear horizontal wheel for keeping the upper sliding rail horizontal are arranged in the lifting point module, so that the lifting process is stable and does not shake, the anti-skid jacking module is additionally arranged, and the slipping phenomenon when the lifting beam shrinks can be prevented.
Drawings
Fig. 1 is a first structural schematic diagram of a cantilever crane according to the present invention.
Fig. 2 is a schematic structural diagram of a cantilever crane according to the present invention.
Fig. 3 is a third schematic structural view of a cantilever crane according to the present invention.
Fig. 4 is a schematic structural view of the main beam walking driving module of the present invention.
Fig. 5 is a cross-sectional view taken along the plane a-a in fig. 4.
Fig. 6 is a schematic structural diagram of a lifting point module according to the present invention.
Fig. 7 is a cross-sectional view taken along plane B-B of fig. 6.
Fig. 8 is a first structural schematic view of the anti-slip jacking module according to the invention.
Fig. 9 is a second structural schematic view of the anti-slip jacking module according to the present invention.
Fig. 10 is a schematic structural view of a hoist module according to the present invention.
Fig. 11 is a schematic structural view of a hoisting chute and a main beam chute of the present invention.
The reference signs are: the lifting beam comprises a lifting beam 1, a lifting point module 2, a horizontal wheel support 21, a rear horizontal wheel support 22, a front lifting point wheel 23, a front horizontal wheel 25, a rear lifting point wheel 26, a rear horizontal wheel 28, a main beam 3, an upper sliding rail 31, a lower sliding rail 32, a wire slide frame 33, a main beam walking driving module 4, a counterweight 41, a wheel set fixing plate 42, a main beam driving motor 43, a driving wheel 44, an electric box support 45, a first electric box 46, a lifting module 5, a lifting motor 51, a lifting rope 52, a lifting hook 53, a lifted object 6, an anti-skid tightening module 7, a bearing plate 71, an adjusting device 72, a lifting block 73, a back pressure wheel 74, a lifting wire slide frame 8, a first C-shaped track pulley block 81, a main beam wire slide frame 9, a second C-shaped track pulley block 91, a second electric box 94 and a building inner wall 10.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-11:
a cantilever crane comprises a hanging beam 1 arranged at the top end of a building inner wall 10, a hanging point module 2, a main beam 3 which is arranged at the lower side of the hanging beam 1 and is in sliding connection with the hanging beam 1, a main beam walking driving module 4 for driving the main beam 3 to slide, a hoisting module 5 in sliding connection with the main beam 3, and a hoisted object 6 hoisted at the lower end of the hoisting module 5, wherein the hanging beam 1 is fixed at the top end of the building inner wall 10 through a double-end long stud, when the crane is not used, the main beam 3 is driven to shrink through the main beam walking driving module 4, so that the main beam 3 shrinks into the building, when the crane is used, the main beam walking driving module 4 drives the main beam 3 to extend out of the building, then the hoisting module 5 is started, the hoisted object 6 is landed on the ground, then high-end equipment to be installed is placed on the hoisted object 6, the hoisting module 5 is used for hoisting, and finally, then the hoisted object 6 is descended by using the hoisting module 5, and high-end equipment is unloaded;
the main beam 3 comprises an upper slide rail 31 and a lower slide rail 32, and the inner side of the upper slide rail 31 is provided with a chute;
the hoisting point module 2 comprises a horizontal wheel support 21, a rear horizontal wheel support 22, a front hoisting point wheel 23, a front horizontal wheel 25, a rear hoisting point wheel 26 and a rear horizontal wheel 28 which are connected to the lower end of the horizontal wheel support 21, the front hoisting point wheel 23 and the rear hoisting point wheel 26 are rotatably connected with the lower end of the upper slide rail 31, the hoisting point wheel 23 and the rear hoisting point wheel 26 which can support the upper slide rail 31 are additionally arranged at the lower end of the upper slide rail 31, on one hand, sliding friction generated when the upper slide rail 31 moves is converted into rolling friction, so that the moving process of the upper slide rail 31 is smoother, and on the other hand, one end of the upper slide rail 31 is ensured to have enough supporting force; the front horizontal wheel 25 and the rear horizontal wheel 28 are both movable inside the sliding groove, and the front horizontal wheel 25 and the rear horizontal wheel 28 are added, so that the upper sliding rail 31 is always kept horizontal, and the main beam 3 is guaranteed to be stable and not to shake in the moving process.
Preferably, the main beam walking driving module 4 includes a counterweight 41 fixedly connected to the main beam 3, a wheel set fixing plate 42 connected to an upper end of the counterweight 41, a main beam driving motor 43 fixed on the wheel set fixing plate 42, and a driving wheel 44 connected to an output shaft of the main beam driving motor 43, and the driving wheel 44 is located inside the hanging beam 1 and is rotatably connected to the hanging beam 1.
Preferably, the main beam 3 is further provided with an anti-skid tight-pushing module 7 at one end far away from the lifting point module 2, the anti-skid tight-pushing module 7 comprises a bearing plate 71, an adjusting device 72 fixed on the bearing plate 71, a lifting block 73 positioned on the upper side of the adjusting device 72, and a reverse pressing wheel 74 connected to the upper end of the lifting block 73, the upper end of the reverse pressing wheel 74 is abutted against the lower end of the lifting beam 1, the height of the reverse pressing wheel 74 can be adjusted through the adjusting device 72, so that the reverse pressing wheel 74 always has upward thrust to the lower end of the lifting beam 1, the cross section of the lifting beam 1 is in an I-shaped structure, the driving wheel 44 and the reverse pressing wheel 74 are respectively positioned at the lower side and the inner side of the lifting beam 1, the phenomenon that the driving wheel 44 slips in the driving process can be avoided by utilizing the upward thrust of the reverse pressing wheel 74 to the lifting beam 1 all, the pressure of the counter pressure wheel 74 is monitored in real time by using the pressure sensor, the elongation of the adjusting device 72 is regulated and controlled by matching with a control system, and the height of the counter pressure wheel 74 can be accurately controlled, namely, the pressure of the counter pressure wheel 74 is controlled within a certain range.
Preferably, an electrical box bracket 45 is further connected to one end of the counterweight 41, and a first electrical box 46 is fixed on the electrical box bracket 45.
Preferably, a wire slide frame 33 is further arranged between the upper slide rail 31 and the lower slide rail 32, a plurality of hoisting wire slide frames 8 are slidably connected onto the wire slide frame 33, a first C-shaped rail pulley block 81 is slidably connected onto the hoisting wire slide frames 8, the wires of the first electrical box 46 are lapped on the first C-shaped rail pulley block 81, and the wire disorder phenomenon can be prevented by utilizing the finishing effect of the hoisting wire slide frames 8 on the wires of the first electrical box 46.
Preferably, the hoisting module 5 includes a hoisting motor 51, a hoisting rope 52 connected to an output shaft of the hoisting motor 51, and a hook 53 connected to a bottom of the hoisting rope 52, and the object 6 to be hoisted is hung on the hook 53.
Preferably, a main beam slide wire frame 9 is further arranged on one side of the hanging beam 1, a second C-shaped track pulley block 91 is connected to the main beam slide wire frame 9 in a sliding manner, a second electric box 94 is further connected to one end of the hoisting motor 51, and a lead of the second electric box 94 is overlapped on the second C-shaped track pulley block 91.
Preferably, the suspended object 6 is a loading vehicle.
The above examples only show 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. A cantilever crane is characterized by comprising a hanging beam (1) arranged at the top end of an inner wall (10) of a building, a lifting point module (2), a main beam (3) which is positioned at the lower side of the hanging beam (1) and is in sliding connection with the hanging beam (1), a main beam walking driving module (4) for driving the main beam (3) to slide, a hoisting module (5) in sliding connection with the main beam (3), and a hoisted object (6) hoisted at the lower end of the hoisting module (5);
the main beam (3) comprises an upper slide rail (31) and a lower slide rail (32), and a sliding groove is formed in the inner side of the upper slide rail (31);
the hoisting point module (2) comprises a front horizontal wheel support (21), a rear horizontal wheel support (22), a front hoisting point wheel (23) at the lower end of the front horizontal wheel support (21), a front horizontal wheel (25), a rear hoisting point wheel (26) at the lower end of the rear horizontal wheel support (22) and a rear horizontal wheel (28), wherein the front hoisting point wheel (23) and the rear hoisting point wheel (26) are both connected with the lower end of the upper slide rail (31) in a rotating manner, and the front horizontal wheel (25) and the rear horizontal wheel (28) are both movable in the inner side of the slide groove.
2. A cantilever crane according to claim 1, characterized in that the cross-section of the crane beam (1) is i-shaped.
3. The cantilever crane according to claim 1, wherein an anti-skid tightening module (7) is further arranged at one end of the main beam (3) far away from the lifting point module (2), the anti-skid tightening module (7) comprises a bearing plate (71), an adjusting device (72) fixed on the bearing plate (71), a lifting block (73) positioned on the upper side of the adjusting device (72), and a counter-pressure wheel (74) connected to the upper end of the lifting block (73), and the upper end of the counter-pressure wheel (74) is abutted to the lower end of the lifting beam (1).
4. The cantilever crane according to claim 1, wherein the main beam walking driving module (4) comprises a counterweight (41) fixedly connected with the main beam (3), a wheel set fixing plate (42) connected to the upper end of the counterweight (41), a main beam driving motor (43) fixed on the wheel set fixing plate (42), and a driving wheel (44) connected to the output shaft of the main beam driving motor (43), wherein the driving wheel (44) is located inside the crane beam (1) and is rotatably connected with the crane beam (1).
5. The cantilever crane according to claim 4, wherein an electrical box bracket (45) is further connected to one end of the counterweight (41), and a first electrical box (46) is fixed on the electrical box bracket (45).
6. The cantilever crane according to claim 5, wherein a wire-sliding rack (33) is further provided between the upper sliding rail (31) and the lower sliding rail (32), a plurality of hoisting wire-sliding racks (8) are slidably connected to the wire-sliding rack (33), a first C-shaped track pulley block (81) is slidably connected to the hoisting wire-sliding rack (8), and the wires of the first electrical box (46) are overlapped on the first C-shaped track pulley block (81).
7. A cantilever crane according to claim 1, wherein the hoisting module (5) comprises a hoisting motor (51), a hoisting rope (52) connected to the output shaft of the hoisting motor (51), and a hook (53) connected to the bottom of the hoisting rope (52), and the hoisted object (6) is hung on the hook (53).
8. The cantilever crane according to claim 7, wherein a main beam chute (9) is further provided at one side of the crane beam (1), a second C-shaped track pulley block (91) is slidably connected to the main beam chute (9), a second electrical box (94) is further connected to one end of the hoisting motor (51), and a lead of the second electrical box (94) is placed on the second C-shaped track pulley block (91).
9. A cantilever crane according to claim 1, wherein the hoisted object (6) is a loading vehicle.
CN202010772671.5A 2020-08-04 2020-08-04 Cantilever crane Pending CN111847267A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010772671.5A CN111847267A (en) 2020-08-04 2020-08-04 Cantilever crane
PCT/CN2020/133374 WO2022027883A1 (en) 2020-08-04 2020-12-02 Cantilever crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010772671.5A CN111847267A (en) 2020-08-04 2020-08-04 Cantilever crane

Publications (1)

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CN111847267A true CN111847267A (en) 2020-10-30

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CN (1) CN111847267A (en)
WO (1) WO2022027883A1 (en)

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KR102312744B1 (en) * 2021-03-24 2021-10-14 (주)행복종합엔지니어링건축사사무소 Movinng system of rooftop ring
WO2022027883A1 (en) * 2020-08-04 2022-02-10 广东港重绿建科技有限公司 Cantilever crane

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Publication number Priority date Publication date Assignee Title
JPH11106178A (en) * 1997-10-08 1999-04-20 Otani Kikai Seisakusho:Kk Freight suspension tool for overhead crane
CN208762892U (en) * 2018-08-06 2019-04-19 武汉通联路桥机械技术有限公司 A kind of section spelling symmetrical integral Bridge Erector of bridge construction
CN210620054U (en) * 2019-03-29 2020-05-26 纽科伦（新乡）起重机有限公司 Telescopic arm type low-clearance suspension crane
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022027883A1 (en) * 2020-08-04 2022-02-10 广东港重绿建科技有限公司 Cantilever crane
KR102312744B1 (en) * 2021-03-24 2021-10-14 (주)행복종합엔지니어링건축사사무소 Movinng system of rooftop ring

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