CN119038412A - Door machine mounting and dismounting system and mounting and dismounting method thereof - Google Patents
Door machine mounting and dismounting system and mounting and dismounting method thereof Download PDFInfo
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- CN119038412A CN119038412A CN202411249637.4A CN202411249637A CN119038412A CN 119038412 A CN119038412 A CN 119038412A CN 202411249637 A CN202411249637 A CN 202411249637A CN 119038412 A CN119038412 A CN 119038412A
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- jacking
- lifting
- installation
- main beam
- wheel seat
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- 238000000034 method Methods 0.000 title claims description 20
- 238000009434 installation Methods 0.000 claims abstract description 44
- 230000009194 climbing Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
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- 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
- B66C9/08—Runners; Runner bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Jib Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The gantry crane installing and dismantling system comprises a gantry crane, wherein the gantry crane comprises a lifting girder, a walking wheel seat and supporting legs, the supporting legs are connected and supported between the lifting girder and the walking wheel seat, the walking wheel seat is used for moving on a track, bottom beams are respectively installed at the bottoms of two ends of the lifting girder, the supporting legs are respectively arranged at two sides of two ends of the lifting girder, the walking wheel seat is respectively arranged at two sides of two ends of the lifting girder, two ends of each supporting leg are respectively hinged with the walking wheel seat and the bottom beams at the same side, a gear is installed at one side of the walking wheel seat, racks are installed on the tracks at two sides at positions corresponding to the walking wheel seat, the gears and the racks are meshed and driven, and the gantry crane installing and dismantling system further comprises jacking systems, wherein the two jacking systems are respectively used for being arranged below two ends of the lifting girder. By adopting the structure to install the door machine, the quick and efficient, economical and safe installation or disassembly can be realized without the help of external large-scale hoisting equipment by only assisting with simple tools and structures.
Description
Technical Field
The invention relates to the technical field of gantry cranes, in particular to a gantry crane assembly and disassembly system and an assembly and disassembly method thereof.
Background
The portal crane, for short, portal crane, is a kind of lifting equipment running on ground track. The installation and the disassembly of the door machine are carried out by adopting a method of hoisting the large hoisting equipment one by one, and after the installation of the metal structural part is completed, the installation of the functional equipment is carried out at high altitude, so that the efficiency of the mode is low, the danger is high, and the economical efficiency is poor.
For example, CN114261901A, publication No. 2022.04.01 discloses a method for installing a portal crane, which comprises the steps of arranging a connecting section at the installation position of a rigid leg below a main beam, enabling the height of the inner side of the connecting section to be lower than a first set value of the height of the outer side, rotating the outer side of the rigid leg to be connected with the outer side of the connecting section, lifting the main beam, adjusting the rigid leg to be approximately vertical to the main beam, temporarily fixing the rigid leg and the connecting section, installing a rigid leg cart, a flexible leg and a flexible leg cart, pulling the main beam, enabling the rigid leg to reach a first set offset, and welding the connecting section and the rigid leg. The crane has the advantages that the problem that the construction efficiency is low due to the fact that the rigid supporting legs are difficult to install when the large-tonnage crane is installed in the prior art, and the problem that the construction efficiency is low due to the fact that the rigid supporting legs are reinstalled is solved, and the crane has the defects that large-scale lifting equipment is needed to lift a main beam to the high altitude, and the risk is high.
Disclosure of Invention
In order to solve the technical problems at present, the main purpose of the invention is to provide a door machine installing and detaching system and an installing and detaching method thereof, which can realize the rapid, efficient, economical and safe installation and detaching effect without the help of external large-scale hoisting equipment and only with the help of simple tools and structures.
The technical scheme adopted by the invention is as follows:
The gantry crane installing and detaching system comprises a gantry crane, wherein the gantry crane comprises a lifting girder, a walking wheel seat and supporting legs, the supporting legs are connected and supported between the lifting girder and the walking wheel seat, the walking wheel seat is used for moving on a track, bottom beams are respectively installed at the bottoms of two ends of the lifting girder, the supporting legs are respectively arranged at two sides of two ends of the lifting girder, the walking wheel seat is respectively arranged at two sides of two ends of the lifting girder, each side of the supporting legs is respectively hinged with the walking wheel seat and the bottom beams at the same side, a gear is installed at one side of the walking wheel seat and driven by a speed reducing motor on the walking wheel seat, racks are installed on the tracks at positions corresponding to the walking wheel seats, the gears are meshed with the racks for transmission, and the gantry crane installing and detaching system further comprises two jacking systems which are respectively arranged below the two ends of the lifting girder and are used for eliminating dead points between the bottom beams and the supporting legs and assisting in jacking the lifting girder.
The two ends of the bottom beam are respectively provided with a first hinge support, the upper ends of the supporting legs are respectively provided with a second hinge support at one side far away from the lifting main beam, and the first hinge support and the second hinge support are hinged through a pin shaft.
The lower side of the bottom beam is fixedly connected with a first flange at the position corresponding to the supporting leg, the upper end of the supporting leg is fixedly connected with a second flange, and after the supporting leg is installed in place, the first flange and the second flange are connected through bolts.
The lower end of the supporting leg is fixedly connected with a third hinged support, the top of the walking wheel seat is fixedly connected with a fourth hinged support, and the third hinged support and the fourth hinged support are hinged through a pin shaft.
Bolt holes are formed in the side face of the rail and the rack, and the rack is mounted on the side face of the rail through bolts.
The travelling wheel seat comprises a frame, roller wheels and a gear motor, at least two roller wheels are arranged in the frame, the gear motor is arranged on the frame, a central shaft of one roller wheel is fixedly connected with a wheel body of the roller wheel, the central shaft is rotationally connected with the frame through a bearing seat, an output shaft of the gear motor is in transmission connection with one end of the central shaft of the roller wheel, and the other end of the central shaft extends out of the frame and is provided with the gear.
The jacking system comprises a jacking oil cylinder and a hydraulic station, wherein the hydraulic station is connected with the jacking oil cylinder through a pipeline and drives the jacking oil cylinder to stretch out and draw back through the hydraulic station.
The jacking system further comprises a jacking cylinder car, and the jacking cylinder and the hydraulic station are respectively arranged on the jacking cylinder car.
The bottom of the top cylinder car is also provided with a supporting oil cylinder, a piston rod of the supporting oil cylinder extends downwards, and the end part of the piston rod is provided with a supporting plate.
The bottom beam underside is at the position of contacting with the jacking system, or is provided with a jacking block at the top of the jacking system.
The gantry crane comprises a crane main beam, a rail, two cross beams, two supporting legs and a gantry crane, wherein the two cross beams are arranged between the two supporting legs at two ends of the crane main beam respectively, and the cross beams are used for being placed on the rail when the gantry crane is installed so as to support the supporting legs and the crane main beam above the supporting legs.
The mounting and dismounting method of the door machine mounting and dismounting system comprises the following steps:
S1, installing a track foundation and a track on the ground, and installing a rack at a proper position on the side surface of the track according to the length dimension of the supporting leg;
s2, respectively mounting four travelling wheel seats on the positions of the corresponding racks on the rails at two sides by using lifting equipment;
S3, temporarily placing the two cross beams on the track, wherein the cross beam on each side is positioned between the two travelling wheel seats;
s4, the supporting leg is horizontally arranged, one end of the supporting leg is hinged with the walking wheel seat through a pin shaft, and the other end of the supporting leg is placed on the cross beam;
s5, hoisting the main crane beam to the supporting legs by using a hoisting device, and hinging two ends of the bottom beam with the top ends of the supporting legs on two sides respectively;
s6, installing devices and equipment in a machine room, an outer frame of the machine room, a roof and a lightning rod on the lifting girder, and installing functional components of the gantry crane in a state of approaching the ground, and installing and debugging power supply and control circuits inside the gantry crane;
S7, jacking operation, namely respectively placing at least two jacking systems on the ground below two ends of the lifting girder, wherein the jacking systems at the two ends of the lifting girder synchronously jack up, stably jack up the lifting girder, and finishing the jacking stage after the lifting stage is up to a certain height;
S8, climbing operation, namely after the lifting operation is carried out to lift the lifting girder to a certain height, entering a climbing operation stage, driving a gear and a rack to be meshed and driven by a gear motor, driving a traveling wheel seat on each side of the track to continuously and synchronously run in opposite directions, further lifting the lifting girder by pushing the lower ends of the supporting legs, stopping the lifting girder after the two supporting legs are folded to a final installation angle, and connecting and fixing the legs and the bottom girder by contacting the upper ends of the supporting legs with the bottom girder;
S9, lifting the cross beam placed on the track to the installation height through a manual hoist or hoisting equipment, and connecting and fixing the two ends of the cross beam with the supporting legs on the two sides respectively;
s10, detaching the gear and the rack to finish installation;
when the door machine needs to be disassembled, the operations S2-S9 are reversed.
The invention has the following beneficial effects:
1. the invention discloses a crane lifting device, which is characterized in that on the basis of the existing crane and a track, the upper part of a crane landing leg and the lower part of a bottom beam are correspondingly arranged in a matched flange connection mode, hinge points are matched on the outer side of the crane landing leg and are connected through a pin shaft, the connection part of the lower end of the crane landing leg and a travelling wheel is adjusted to be in a hinge point and pin shaft connection mode so as to facilitate the swinging angle of the landing leg in the installation process, a gear is arranged on the outer side of a crane travelling wheel seat, a rack is arranged on the side surface of the track, a lifting girder is driven to climb through meshing of the rack, and a lifting system is further arranged, and is used for eliminating dead points between the bottom beam and the landing leg and assisting in lifting the lifting girder. By adopting the structure to install or disassemble the door machine, the door machine can be installed or disassembled quickly, efficiently, economically and safely without the help of external large-scale hoisting equipment and only by assisting with simple tools and structures.
2. The invention also comprises a cross beam which is used for being placed on a track when the gantry crane is installed so as to support the supporting legs and the lifting girder above the supporting legs, and the cross beam is connected between the two supporting legs after the lifting girder climbs in place so as to improve the stability of the gantry crane, thus the temporary supporting beam is also omitted, and the rapid installation is realized while the gantry crane has multiple purposes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the state of the invention before the jacking operation.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic structural diagram of the jacking system of the present invention.
Fig. 4 is a schematic view of the structure of the present invention after installation.
In the figure:
A main lifting beam 100, a bottom beam 110, a first hinge support 111, a first flange 112, a top block 120 and bolts 130;
the travelling wheel seat 200, the frame 201, the fourth hinged support 202, the roller way wheel 203 and the gear 210;
a leg 300, a second hinge base 301, a third hinge base 302, a second flange 303;
A cross beam 400;
Track 500, rack 510;
jacking system 700, jacking cylinder 710, hydraulic station 720, jacking trolley 730, supporting cylinder 740, and supporting plate 741.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Embodiment one:
Referring to fig. 1 to 4, a door machine installing and detaching system comprises a door machine, wherein the door machine comprises a lifting girder 100, a walking wheel seat 200 and a supporting leg 300, the supporting leg 300 is connected and supported between the lifting girder 100 and the walking wheel seat 200, the walking wheel seat 200 is used for moving on a track 500, bottom beams 110 are respectively installed at the bottoms of two ends of the lifting girder 100, the supporting legs 300 are respectively arranged at two sides of two ends of the lifting girder 100, the walking wheel seat 200 is respectively arranged at two sides of two ends of the lifting girder 100, two ends of each supporting leg 300 are respectively hinged with the walking wheel seat 200 and the bottom beams 110 on the same side, a gear 210 is installed at one side of the walking wheel seat 200, the gear 210 is driven by a speed reducing motor on the walking wheel seat 200, racks 510 are installed on rails 500 on two sides at positions corresponding to the walking wheel seat 200, the gears 210 are in meshed transmission with the racks 510, and a jacking system 700 is respectively used for being arranged below two ends of the lifting girder 100, and the jacking system 700 is used for eliminating dead spots between the bottom beams 110 and the supporting legs 300 and assisting in lifting the lifting girder 100.
By providing the bottom beam 110 at the underside of the main girder 100, it is facilitated to hinge with the leg 300 by the bottom beam 110, both ends of the bottom beam 110 protruding out of the main girder 100 in fig. 1. The bottom beam 110 may be a rod, a plate, or a metal structure. After the lifting main beam 100 is lifted to a certain height by the two lifting systems 700, the lifting main beam 100 is further lifted by meshing and driving the gear 210 on the travelling wheel seat 200 with the rack 51 on the track 500, and when the tops of the supporting legs 300 and the bottom beams 110 are close to each other, the lifting main beam can be welded or connected with the bottom beams 110 through bolts, so that the installation of the gantry crane is completed.
By adopting the structure to install or disassemble the door machine, the quick and efficient, economical and safe installation or disassembly can be realized without the help of external large-scale hoisting equipment by only assisting with simple tools and structures.
Referring to fig. 1 and 2, specifically, the bottom beam 110 is provided at both ends thereof with a first hinge support 111, the leg 300 is provided at an upper end thereof with a second hinge support 301 at a side remote from the main girder 100, and the first hinge support 111 and the second hinge support 301 are hinged by a pin.
Referring to fig. 1 and 3, a first flange 112 is fixedly connected to the lower side of the bottom beam 110 at a position corresponding to the support leg 300, a second flange 303 is fixedly connected to the upper end of the support leg 300, and after the support leg 300 is installed in place, the first flange 112 and the second flange 303 are connected through bolts. When the top of the leg 300 is closed to the bottom beam 110, the first flange 112 and the second flange 303 are coupled by bolts, thereby rapidly coupling the leg 300 to the bottom beam 110.
Referring to fig. 1 and 2, specifically, the lower end of the leg 300 is fixedly connected with a third hinge support 302, the top of the traveling wheel seat 200 is fixedly connected with a fourth hinge support 202, and the third hinge support 302 and the fourth hinge support 202 are hinged through a pin.
To facilitate the mounting and dismounting of the rack 510, bolt holes are provided in the rack 510, threaded holes are provided in the sides of the rail 500, and the rack 510 is mounted on the sides of the rail 500 by bolts. When installed, the rack 510 is meshed with the gear 210 with its tooth slot facing upwards. Of course, in order to improve the stability of the installation of the rack 510, a support block for supporting the rack 510 is also installed under the rack 510 at the rail 500.
In one embodiment, referring to fig. 2, the running wheel seat 200 includes a frame 201, roller wheels 203 and a gear motor, not shown in the gear motor, at least two roller wheels 203 are installed in the frame 201, the gear motor is installed on the frame 201, a central shaft of one roller wheel 203 is fixedly connected with a wheel body thereof, the central shaft is rotatably connected with the frame 201 through a bearing seat, an output shaft of the gear motor is in transmission connection with one end of the central shaft of the roller wheel 203, and the other end of the central shaft extends out of the frame 201 and is provided with a gear 210. One of the roller wheels 203 and the gear 210 is driven to rotate by a gear motor, so that the traveling wheel seat 200 stably travels on the track 500.
Of course, the gear 21 may be driven by a gear motor separately installed at the wheel mount 200.
Referring to fig. 3, the jacking system 700 includes a jacking cylinder 710 and a hydraulic station 720, wherein the hydraulic station 720 is connected with the jacking cylinder 710 through a pipeline, and the jacking cylinder 710 is driven to extend and retract by the hydraulic station 720. By the extension of the jacking cylinder 710, dead points between the bottom beam 110 and the leg 300 are eliminated, and the jacking of the heavy main beam 100 is assisted. The jacking system 700 may employ a multi-stage ram. The number of the jacking cylinders 710 on each side may be one or more.
Further, the jacking system 700 further includes a jacking cylinder car 730, and the jacking cylinder 710 and the hydraulic station 720 are respectively mounted on the jacking cylinder car 730. By providing the top cart 730, the lift cylinders 710 and the hydraulic stations 720 are facilitated to be moved.
Further, a supporting cylinder 740 is also installed at the bottom of the top cylinder vehicle 730, a piston rod of the supporting cylinder 740 extends downwards, and a supporting plate 741 is installed at the end of the piston rod. In use, the piston rod of support cylinder 740 is extended and brace 741 contacts the ground. The overhead cart 730 is made more stable. Specifically, support cylinders 740 are respectively installed at four corners and the middle of the bottom of the top cylinder vehicle 730, and the support cylinders 740 are centrally controlled by the hydraulic station 720 so as to realize precise synchronous telescoping.
Further, in order to improve the stability of the jacking cylinder 710 in jacking, referring to fig. 1 and 3, the lower side of the bottom beam 110 is provided with a jacking block 120 at a position contacting the jacking system 700 or at the top of the jacking system 700. Specifically, the bottom beam 110 is provided with a top block 120 at a position contacting with a piston rod of the jacking cylinder 710 or at a top of the piston rod of the jacking cylinder 710 at a lower side.
Referring to fig. 1 and 3, the girder 400 is further comprised of at least two girders 400, and the two girders 400 are respectively installed between the two legs 300 at both ends of the girder 100. The beam 400 is accurately placed on the rail 500 after being calculated and positioned during the installation of the gantry crane to support the supporting legs 300 and the lifting girder 100 above the supporting legs 300, and the beam 400 is connected between the two supporting legs 300 after the lifting girder 100 climbs in place to improve the stability of the gantry crane. The cross beam 400 may be welded to the leg 300 or bolted via a flange structure.
Embodiment two:
referring to fig. 1 and 4, an installing and detaching method of a door machine installing and detaching system is adopted, and the door machine installing method comprises the following steps:
S1, installing a track foundation and a track 500 on the ground, and installing the rack 510 at a proper position on the side surface of the track 500 after calculation according to the length dimension of the supporting leg 300.
S2, the four traveling wheel seats 200 are firstly respectively installed on the positions of the corresponding racks 510 on the two side rails 500 by using lifting equipment.
S3, after the two cross beams 400 are precisely calculated and positioned, the cross beams 400 on each side are temporarily placed on the track 500, and the cross beams 400 on each side are positioned between the two traveling wheel seats 200.
S4, the supporting leg 300 is horizontally arranged, one end of the supporting leg 300 is hinged with the walking wheel seat 200 through a pin shaft, the other end of the supporting leg is placed on the cross beam 400, and the supporting leg is supported up through sleepers and the like so as to meet the installation angle and the installation height.
S5, hoisting the main crane beam 100 to the supporting legs 300 by using a hoisting device, and hinging the two ends of the bottom beam 110 with the top ends of the supporting legs 300 on the two sides respectively.
S6, installing devices and equipment in a machine room on the lifting main beam 100, and installing functional components of the gantry crane in a state of approaching the ground as well as an external frame, a roof and a lightning rod of the machine room, and installing and debugging power supply and control circuits in the gantry crane.
And S7, jacking operation, namely respectively placing at least two jacking systems 700 on the ground below two ends of the lifting girder 100 during the jacking operation, synchronously jacking the lifting girder 100 by the jacking systems 700 at the two ends of the lifting girder 100, and finishing the jacking stage after the lifting is up to a certain height, wherein in the jacking process, the gear 210 and the rack 510 are meshed for transmission, so that the two travelling wheel seats 200 at each side synchronously move towards each other.
S8, climbing operation, namely after the lifting operation is carried out to lift the lifting girder 100 to a certain height, the lifting operation enters a climbing operation stage, the gear motor is driven by the gear 210 to be meshed with the rack 510 for transmission, the running wheel seat 200 on each side of the track 500 is driven to continue to synchronously run in opposite directions, synchronous measurement is carried out in the lifting process, so that the lifting girder 100 is synchronously and stably lifted step by step, the lifting girder 100 is further lifted by pushing the lower ends of the supporting legs 300, the lifting girder is stopped after the two supporting legs 300 are folded to a final installation angle, and at the moment, the upper ends of the supporting legs 300 are contacted with the bottom girder 110 to connect and fix the legs 300 with the bottom girder 110.
And S9, vertically lifting the cross beam 400 placed on the track 500 to the installation height through a hand hoist or hoisting equipment, and connecting and fixing two ends of the cross beam 400 with the supporting legs 300 on two sides respectively.
And S10, detaching the gear 210 and the rack 510 to finish the installation.
When the door machine needs to be disassembled, the operations S2-S9 are reversed.
Embodiment III:
Specifically, the door machine installation process is as follows:
The track foundation and the track 500 are installed on the ground, and then the racks 510 are installed to the sides of the track 500 according to the size of the leg 300 after calculation and accurate measurement, and are reliably installed and fixed by bolts. And then the size and the position are measured, the walking wheel seat 200 is firstly installed on the track 500 at the corresponding position by using small-sized lifting equipment, then the supporting leg 300 is connected with the walking wheel seat 200 by adopting a horizontal installation mode through a pin shaft, the other end of the supporting leg 300 is supported on a beam 400 which is arranged at the proper position of the track in advance and is temporarily supported, the proper installation height and angle are met, the lifting girder 100 is hoisted by using the small-sized lifting equipment, devices and equipment in a machine room and facilities such as a roof and a lightning rod are further installed on the lifting girder 100 through hinge points and hinge points connected with the upper end of the supporting leg 300, and the whole gantry crane is installed in a low-frame state.
And (3) mounting and debugging the power supply and control circuit in the door machine, ensuring that all mechanisms are adjusted in place, and starting subsequent climbing operation by electrically debugging to meet the operation requirement.
The subsequent operation is divided into two stages of jacking operation and climbing operation. If the climbing mode is adopted, the climbing device has large self weight and small horizontal angle in the initial climbing stage, so the horizontal component force required by climbing is quite large, the requirements on the power and the structural strength of the climbing device are quite high, the economy and the feasibility are poor, and the climbing combined mode is the optimal mode. During jacking operation, a plurality of jacking systems 700 are stopped below jacking blocks 120 corresponding to bottom beams 110 on the ground outside a gantry crane track, at least two jacking cylinders are symmetrically arranged in general, a supporting cylinder 740 of the jacking system 700 is driven to act, a supporting plate 741 is connected to the end part of a piston rod of the supporting cylinder 740, the piston rod of the supporting cylinder 740 extends out, and the supporting plate 741 is reliably supported on the ground for leveling. The jacking cylinders 710 are driven to extend out of the piston rods to prop against the jacking blocks 120, the jacking cylinders 710 synchronously act, the lifting main girder 100 is lifted stably and integrally, the jacking stage is finished after the lifting stage is lifted to a certain height, the jacking height is determined through calculation, the follow-up climbing operation process can be ensured to be stressed within a design range, the overload problem does not occur, and the gears 210 and the motor can push the supporting legs 300 to continuously finish the climbing operation.
The climbing process is that a gear motor on the travelling wheel seat 200 drives a gear 210 to rotate, the gear 210 is meshed with a rack 510, two travelling wheel seats 200 on two sides of a track synchronously move in opposite directions, in the process, the supporting legs 300 are further lifted gradually and approach gradually, when the two supporting legs 300 are folded to a final installation angle, the two supporting legs 300 are stopped, at the moment, a second flange 303 on the upper part of the supporting legs 300 is exactly aligned with a first flange 112 on the bottom of the bottom beam 110, reliable connection of flange surfaces is ensured through bolts 130, and then a cross beam 400 which is placed at a position corresponding to the track 500 in advance is lifted up through a hoist or small lifting equipment mode and then is connected with a connecting surface on the inner side of the supporting legs through bolts, so that all installation and debugging work is completed.
The installation mode has the advantages that large hoisting equipment is not needed, equipment debugging is completed when the gantry crane is in a low-elevation stage, if a debugging process is problematic, accessories are convenient to replace in time, maintenance and replacement are convenient, safety and efficiency are high in the climbing process, and the rack 510, the pin shaft, the gear 210 and the lifting system 700 can be repeatedly used in other equipment, so that the economy is very excellent.
The installation device and the method not only can be used for installing or dismantling the door machine described in the patent, but also can be widely used for various large-scale equipment, large-scale steel members or structures with hinged support legs, and the principle and the steps are similar to those described in the patent, but all belong to the protection scope of the patent.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (12)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411249637.4A CN119038412A (en) | 2024-09-06 | 2024-09-06 | Door machine mounting and dismounting system and mounting and dismounting method thereof |
| PCT/CN2025/129835 WO2026052151A1 (en) | 2024-09-06 | 2025-10-24 | Gantry crane mounting and dismounting system and mounting and dismounting method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411249637.4A CN119038412A (en) | 2024-09-06 | 2024-09-06 | Door machine mounting and dismounting system and mounting and dismounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119038412A true CN119038412A (en) | 2024-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411249637.4A Pending CN119038412A (en) | 2024-09-06 | 2024-09-06 | Door machine mounting and dismounting system and mounting and dismounting method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN119038412A (en) |
| WO (1) | WO2026052151A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026052151A1 (en) * | 2024-09-06 | 2026-03-12 | 中国三峡建工(集团)有限公司 | Gantry crane mounting and dismounting system and mounting and dismounting method therefor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE889357C (en) * | 1943-01-17 | 1953-09-10 | Bauma Fa | Dismountable gantry crane |
| CN101249927A (en) * | 2007-08-30 | 2008-08-27 | 中铁大桥局集团第一工程有限公司 | Mounting and dismounting method for gantry crane |
| CN216038290U (en) * | 2021-10-21 | 2022-03-15 | 中交二航局第二工程有限公司 | Gantry crane capable of being integrally and automatically installed and dismantled |
| CN118343625A (en) * | 2024-05-18 | 2024-07-16 | 郑州科润机电工程有限公司 | Installation method suitable for large-span high-lift truss type gantry crane |
| CN119038412A (en) * | 2024-09-06 | 2024-11-29 | 中国三峡建工(集团)有限公司 | Door machine mounting and dismounting system and mounting and dismounting method thereof |
-
2024
- 2024-09-06 CN CN202411249637.4A patent/CN119038412A/en active Pending
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2025
- 2025-10-24 WO PCT/CN2025/129835 patent/WO2026052151A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026052151A1 (en) * | 2024-09-06 | 2026-03-12 | 中国三峡建工(集团)有限公司 | Gantry crane mounting and dismounting system and mounting and dismounting method therefor |
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| WO2026052151A1 (en) | 2026-03-12 |
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