CN112340619B - Modular assembly method of crane - Google Patents
Modular assembly method of crane Download PDFInfo
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- CN112340619B CN112340619B CN202011312367.9A CN202011312367A CN112340619B CN 112340619 B CN112340619 B CN 112340619B CN 202011312367 A CN202011312367 A CN 202011312367A CN 112340619 B CN112340619 B CN 112340619B
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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
- 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
- B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a modular assembly method of a crane, which comprises the steps of pre-assembling a base module, a rotary platform module, a tripod module and a suspension arm module; welding a guide block along the top of the base; hoisting the base module to the upper part of the base, welding, and dismantling the guide block after welding; hoisting the rotary platform module onto the base module, enabling the rotary platform module to slide along the guide inclined plane through the lower end of a first bolt of the rotary support to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and fixedly connecting the outer ring of the rotary support with the cylindrical part through a second bolt; hoisting the truss to the rotary platform, aligning the supporting legs of the truss with the connecting piece of the rotary platform, and then welding for the first time at the process opening; after the truss connection is checked to be error-free through the first welding, the connection part of the supporting leg of the truss and the connecting piece of the rotary platform is welded for the second time; after the suspension arm module is installed, a wire rope is penetrated into the winch; the invention has the advantage of low assembly cost.
Description
Technical Field
The invention relates to the technical field of offshore cranes, in particular to a modular assembling method of a crane.
Background
In the assembly of the large offshore crane in the prior art, basic components of the crane, such as a base, a rotary platform, a rotary support, a tripod and a boom, are generally assembled step by step through a crane, precision errors can be caused when the crane is assembled by adopting a non-modular assembly mode, once the precision errors occur after the crane is assembled, some internal components are inconvenient to install due to precision problems, and the precision adjustment is carried out again by disassembling the assembled components, so that the hoisting times are increased, the assembly time is prolonged, the assembly cost is high, the time is long, and the efficiency is low.
Disclosure of Invention
The invention provides a modular assembling method of a crane, which can reduce the cost and improve the assembling efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows: a modular assembly method of a crane comprises the crane, and is characterized in that: the crane comprises a deck base, a base module, a rotary platform module, a tripod module and a suspension arm module; an anti-collision column is arranged in the deck base, and a first safety ladder is arranged on one side of the deck base;
the base module comprises a cylindrical part, a first protective guard and a reinforcing plate, the reinforcing plate is arranged on the inner wall of the cylindrical part and is arranged towards the central axis direction of the cylindrical part, the first protective guard is welded on the outer side of the cylindrical part, and a guide inclined plane is arranged at the top of the reinforcing plate;
the rotary platform module comprises a rotary platform, a rotary support and a main winch assembly, the main winch assembly is arranged on the rotary platform, the rotary support is arranged at the bottom of the rotary platform, a rotary motor is arranged on one side of the rotary support, an inner ring of the rotary support is fixedly connected with the bottom of the rotary platform through a first bolt, an outer ring of the rotary support is fixedly connected with the cylindrical part through a second bolt, a rotary gear is connected to the output end of the rotary motor, and the rotary motor is meshed with the outer ring of the rotary support through the rotary gear; the rotary platform is provided with a connecting piece, and the connecting piece on one side is provided with a first rotary hole site;
the tripod module comprises a truss, a second safety ladder and a second protective guard, the second safety ladder is arranged on one side of the truss, and the second protective guard is arranged at the top of the truss; supporting legs are arranged at the bottom of the truss, and a process opening for welding is formed in one side of each supporting leg;
the suspension arm module comprises a suspension arm frame, a suspension arm winch component and a suspension arm guide wheel component, the suspension arm winch component is fixedly arranged in the suspension arm frame, and the suspension arm guide wheel component is arranged on the suspension arm frame; one end of the boom frame is provided with a second rotating hole site;
the crane comprises the following assembly steps:
(1) Pre-assembling the base module, the rotary platform module, the tripod module and the suspension arm module;
(1.1) welding a reinforcing plate in the cylindrical part, and welding a first guard rail outside the cylindrical part to complete the preassembly of the base module;
(1.2) fixing a main winch assembly on a rotary platform, fixedly connecting an inner ring of a rotary support with the rotary platform through a bolt, installing a rotary motor on one side of the rotary platform, and meshing a rotary gear on an outer ring of the rotary support to complete the pre-assembly of a rotary platform module;
(1.3) welding a second safety ladder on one side of the truss, and welding a second protective guard on the top of the truss to complete the pre-assembly of the triangular frame module;
(1.4) connecting and fixing the suspension arm winch assembly on the inner side of the suspension arm frame through a first bolt, and fixedly connecting the suspension arm guide wheel assembly on the suspension arm frame to complete the preassembly of the suspension arm module;
(2) Welding more than two guide blocks along the top of the deck base;
(3) After the base module is hoisted to the position above the deck base, welding and fixing are carried out, and after welding is finished, the guide block is detached, so that the base module is installed;
(4) Hoisting the rotary platform module onto the base module, enabling the rotary platform module to slide along the guide inclined plane through the lower end of a first bolt of the rotary support to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and fixedly connecting the outer ring of the rotary support with the cylindrical part through a second bolt to finish the installation of the rotary platform module;
(5) Hoisting the truss to a rotary platform, aligning support legs of the truss with a connecting piece of the rotary platform, and then welding the connecting part of the connecting piece with the process opening for the first time;
(6) Welding for the first time to check the truss connection;
(6.1) if the truss is connected without errors after the first welding is detected, performing second welding on the connection part of the support legs of the truss and the connecting piece of the rotary platform to complete the installation of the rotary platform module;
(7) Hoisting the boom module to one side of the connecting piece with a first rotating hole position on the rotating platform, and hinging the first rotating hole position of the connecting piece with a second rotating hole position on the boom frame to finish the installation of the boom module;
(8) And (5) threading steel wires into the main winch assembly, the suspension arm winch assembly and the suspension arm guide wheel assembly to connect with a lifting hook to finish assembly.
According to the method, the guide block is arranged on the top of the base, when the base module is assembled, the bottom of the cylindrical part slides to the preset assembly position along the inclined plane of the guide block to be welded and fixed, and the guide block is detached after welding and fixing, so that the assembly precision is improved.
The reinforcing plate on the inner side of the cylindrical part is provided with the guide inclined plane, when the rotary platform module is assembled, the lower end of the first bolt slides along the guide inclined plane to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and the first bolt and the guide inclined plane on the reinforcing plate are matched to play a role in guiding the installation of the rotary platform module, so that the assembly precision is improved, and the cost generated when the assembly position is adjusted is reduced;
the method comprises the following steps that a first process port is formed in a supporting leg of a truss, a second process port is formed in a connecting piece of a rotary platform, and when a crane hoists the supporting leg of a tripod to the connecting piece of the rotary platform, the connecting part of the first process port and the second process port is welded for the first time; if the truss is not accurately connected in the first welding inspection, removing a welding point formed by welding the connection part of the first process port and the second process port and welding again; after the first error-free detection, the connection part of the supporting legs of the truss and the connecting piece of the rotary platform can be welded for the second time, and the installation of the rotary platform module is completed; like this, through set up first, second technology mouth respectively on the supporting legs of truss and rotary platform's connecting piece and carry out welding for the first time, carry out welded fastening for the second time to truss and rotary platform on the basis of welding for the first time, take such mode to fix, can improve welded precision, if the welding for the first time is inaccurate, timely adjustment reduces the number of times of hoist and mount tripod to reduce cost.
According to the method, each component of the crane can be preassembled in a modularized mode, the base module, the rotary platform module, the tripod module and the suspension arm module are preassembled respectively, the components in each module are assembled in advance, if the assembly needs to be adjusted due to the conditions of precision errors and the like, the adjustment can be carried out before the module is hoisted and assembled, the situation that the assembled components are disassembled and then are hoisted and adjusted is avoided, and therefore the hoisting times during assembly can be reduced, the cost caused by the precision errors during assembly is reduced, the cost is reduced, the assembly time is shortened, and the assembly efficiency is improved.
Further, the step (6) further comprises the step (6.2) that if the truss connection is detected to be inaccurate through first welding, the welding point formed at the connection position of the technical opening and the connecting piece is removed, and the step (6) is carried out again.
Further, the rotary motors are provided with more than two.
Furthermore, the crane further comprises a deck placing seat, the deck placing seat is arranged on one side of the deck base, and a suspension arm placing frame is arranged on the deck placing seat.
Furthermore, the suspension arm rest frame comprises a rack, a roller connecting piece and side baffles, wherein the roller is rotatably connected to the roller connecting piece through a pin penetrating shaft, the roller connecting piece is fixedly installed on the top surface of the rack, and the side baffles are arranged on two sides of the top surface of the rack. Therefore, when the crane does not work, the truss can be placed on the suspension arm placing frame, and the abrasion caused by the shaking of the ship body can be reduced by placing the truss on the roller.
Furthermore, one side of the guide block, which is close to the anti-collision column, is an inclined plane, and the inclined plane of the guide block is rectangular. Thus, when the base module is mounted, the guide block can play a role of guiding, and excessive friction force is not generated on the cylindrical part of the base module.
Drawings
Fig. 1 is a schematic structural view of a crane according to the present invention.
Fig. 2 is a schematic structural view of the base module of the present invention after installation.
Fig. 3 is a schematic structural diagram of the rotating platform module of the present invention after installation.
Fig. 4 is a schematic structural view of the tripod module of the present invention after being installed.
Fig. 5 is a schematic structural diagram of a boom module in the present invention.
Fig. 6 is a schematic view of a connection structure of the tripod and the rotary platform module according to the present invention.
FIG. 7 is a block flow diagram of an assembly method of the present invention.
Fig. 8 is a partially enlarged view of a portion a in fig. 3.
Fig. 9 is a partially enlarged schematic view of a portion B in fig. 6.
Fig. 10 is a partially enlarged view of C in fig. 6.
Fig. 11 is a schematic structural view of the boom rest of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1-11, a modular assembly method of a crane comprises a crane, the crane comprising a deck base 1, a base module 2, a rotary platform module 3, a tripod module 4, a boom module 5 and a deck rest base 6; an anti-collision column 11 is arranged in the deck base 1, and a first safety ladder 12 is arranged on one side of the deck base 1; the deck shelving seat 6 is arranged on one side of the deck base 1, and the deck shelving seat 6 is provided with a suspension arm shelving frame 61; one side of the guide block, which is close to the anti-collision column 10, is an inclined plane, and the inclined plane of the guide block is rectangular.
The base module 2 includes a cylinder part 21, a first guard rail 22 and a reinforcement plate 23, the reinforcement plate 23 is disposed on an inner wall of the cylinder part 21, the reinforcement plate 23 is disposed toward a central axis direction of the cylinder part 21, the first guard rail 22 is welded to an outer side of the cylinder part 21, and a guide slope 231 is disposed on a top of the reinforcement plate 23.
The rotary platform module 3 comprises a rotary platform 31, a rotary support 32 and a main winch assembly 33, wherein the main winch assembly 33 is arranged on the rotary platform 31, the rotary support 32 is arranged at the bottom of the rotary platform 31, 2 rotary motors 321 are arranged on one side of the rotary support 32, an inner ring first bolt 322 of the rotary support 32 is fixedly connected with the bottom of the rotary platform 31, an outer ring of the rotary support 32 is fixedly connected with the cylindrical part 21 through a second bolt 323, the output end of the rotary motor 321 is connected with a rotary gear 3211, and the rotary motor 321 is meshed with the outer ring of the rotary support 32 through a rotary gear 3211; the rotary platform 31 is provided with a connecting member 311, and the connecting member 311 on one side is provided with a first rotary hole 3111.
The tripod module 4 comprises a truss 41, a second safety ladder 42 and a second guard rail 43, wherein the second safety ladder 42 is arranged at one side of the truss 41, and the second guard rail 42 is arranged at the top of the truss 41; the bottom of the truss 41 is provided with a supporting leg 411, and one side of the supporting leg 411 is provided with a technical opening 412 for welding.
The suspension arm module 5 comprises a suspension arm frame 51, a suspension arm winch assembly 52 and a suspension arm guide wheel assembly 53, wherein the suspension arm winch assembly 52 is fixedly arranged in the suspension arm frame 51, and the suspension arm guide wheel assembly 53 is arranged on the suspension arm frame 51; one end of the boom frame 51 is provided with a second rotary hole site 54.
The boom rest 61 comprises a frame 611, a roller 612, a roller connector 613 and side guards 614, wherein the roller 612 is rotatably connected to the roller connector 613 through a pin, the roller connector 613 is fixedly installed on the top surface of the frame 611, and the side guards 614 are arranged on two sides of the top surface of the frame 611.
The crane comprises the following assembly steps:
(1) And preassembling the base module, the rotary platform module, the tripod module and the suspension arm module.
And (1.1) welding a reinforcing plate in the cylindrical part, and welding a first guard rail outside the cylindrical part to complete the preassembly of the base module.
(1.2) fixing the main winch assembly on the rotary platform, fixedly connecting the inner ring of the rotary support with the rotary platform through bolts, installing the rotary motor on one side of the rotary platform, and meshing the rotary gear on the outer ring of the rotary support to complete the pre-assembly of the rotary platform module.
And (1.3) welding a second safety ladder on one side of the truss and welding a second protective guard on the top of the truss to complete the preassembly of the triangular frame module.
And (1.4) connecting and fixing the suspension arm winch assembly on the inner side of the suspension arm frame through a first bolt, and fixedly connecting the suspension arm guide wheel assembly on the suspension arm frame to complete the preassembly of the suspension arm module.
(2) More than two guide blocks are symmetrically arranged along the top of the deck base.
(3) And (4) hoisting the base module to the upper part of the deck base, welding and fixing, and dismantling the guide block after welding to complete the installation of the base module.
(4) And hoisting the rotary platform module to the base module, enabling the rotary platform module to slide along the guide inclined plane through the lower end of the first bolt of the rotary support to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and fixedly connecting the outer ring of the rotary support with the cylindrical part through the second bolt to finish the installation of the rotary platform module.
(5) And hoisting the truss to the rotary platform, aligning the supporting legs of the truss with the connecting piece of the rotary platform, and welding the connecting part of the process opening and the connecting piece for the first time.
(6) The truss connection is checked for the first weld.
And (6.1) if the truss is connected without errors after the first welding is detected, welding the joint of the supporting leg of the truss and the connecting piece of the rotary platform for the second time to complete the installation of the rotary platform module.
And (6.2) if the truss is not accurately connected in the first welding inspection, removing the welding point formed at the joint of the technical port and the connecting piece, and then entering the step 6).
(7) And hoisting the boom module to one side of the connecting piece provided with the first rotating hole site of the rotary platform, and hinging the first rotating hole site of the connecting piece with the second rotating hole site on the boom frame to finish the installation of the boom module.
(8) And (5) connecting the main winch assembly, the suspension arm winch assembly and the suspension arm guide wheel assembly with a lifting hook through a steel wire rope to finish assembly.
According to the method, the guide block is arranged on the top of the base, when the base module is assembled, the bottom of the cylindrical part slides to the preset assembly position along the inclined surface of the guide block to be welded and fixed, and the guide block is detached after welding and fixing, so that the assembly precision is improved.
The reinforcing plate on the inner side of the cylindrical part is provided with the guide inclined plane, when the rotary platform module is assembled, the lower end of the first bolt slides along the guide inclined plane to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and the first bolt and the guide inclined plane on the reinforcing plate are matched to play a role in guiding the installation of the rotary platform module, so that the assembly precision is improved, and the cost generated when the assembly position is adjusted is reduced.
The method comprises the following steps that a first process port is formed in a supporting leg of a truss, a second process port is formed in a connecting piece of a rotary platform, and when a crane hoists the supporting leg of a tripod to the connecting piece of the rotary platform, the joint of the first process port and the second process port is welded for the first time; if the truss is not accurately connected in the first welding inspection, removing a welding point formed by welding the connection part of the first process port and the second process port and welding again; after checking that no error exists for the first time, welding the joint of the support leg of the truss and the connecting piece of the rotary platform for the second time to complete the installation of the rotary platform module; like this, through set up first, second technology mouth respectively on the supporting legs of truss and rotary platform's connecting piece and carry out welding for the first time, carry out welded fastening for the second time to truss and rotary platform on the basis of welding for the first time, take such mode to fix, can improve welded precision, if the welding for the first time is inaccurate, timely adjustment reduces the number of times of hoist and mount tripod to reduce cost.
According to the method, each component of the crane can be preassembled in a modularized mode, the base module, the rotary platform module, the tripod module and the suspension arm module are preassembled respectively, the components in each module are assembled in advance, if the assembly needs to be adjusted due to the conditions of precision errors and the like, the adjustment can be carried out before the module is hoisted and assembled, the situation that the assembled components are disassembled and then are hoisted and adjusted is avoided, and therefore the hoisting times during assembly can be reduced, the cost caused by the precision errors during assembly is reduced, the cost is reduced, the assembly time is shortened, and the assembly efficiency is improved.
Claims (6)
1. A modular assembly method of a crane, comprising the crane, characterized in that: the crane comprises a deck base, a base module, a rotary platform module, a triangular frame module and a suspension arm module; an anti-collision column is arranged in the deck base, and a first safety ladder is arranged on one side of the deck base;
the base module comprises a cylindrical part, a first guard rail and a reinforcing plate arranged on the inner side of the cylindrical part, the first guard rail is welded on the outer side of the cylindrical part, and a guide inclined plane is arranged at the top of the reinforcing plate;
the rotary platform module comprises a rotary platform, a rotary support and a main winch assembly, the main winch assembly is arranged on the rotary platform, the rotary support is arranged at the bottom of the rotary platform, a rotary motor is arranged on one side of the rotary support, an inner ring of the rotary support is fixedly connected with the bottom of the rotary platform through a first bolt, an outer ring of the rotary support is fixedly connected with the cylindrical part through a second bolt, the output end of the rotary motor is connected with a rotary gear, and the rotary motor is meshed with the outer ring of the rotary support through the rotary gear; the rotary platform is provided with a connecting piece, and the connecting piece on one side is provided with a first rotary hole site;
the tripod module comprises a truss, a second safety ladder and a second protective guard, the second safety ladder is arranged on one side of the truss, and the second protective guard is arranged at the top of the truss; supporting legs are arranged at the bottom of the truss, and a process opening for welding is formed in one side of each supporting leg;
the suspension arm module comprises a suspension arm frame, a suspension arm winch assembly and a suspension arm guide wheel assembly, the suspension arm winch assembly is fixedly arranged in the suspension arm frame, and the suspension arm guide wheel assembly is arranged on the suspension arm frame; one end of the cantilever crane frame is provided with a second rotating hole site;
the crane comprises the following assembly steps:
(1) Pre-assembling the base module, the rotary platform module, the triangular frame module and the suspension arm module;
(1.1) welding a reinforcing plate in the cylindrical part, and welding a first guard rail outside the cylindrical part to complete the preassembly of the base module;
(1.2) fixing a main winch assembly on a rotary platform, fixedly connecting an inner ring of a rotary support with the rotary platform through a bolt, installing a rotary motor on one side of the rotary platform, and meshing a rotary gear on an outer ring of the rotary support to complete the pre-assembly of a rotary platform module;
(1.3) welding a second safety ladder on one side of the truss, and welding a second protective guard on the top of the truss to complete the pre-assembly of the triangular frame module;
(1.4) connecting and fixing the suspension arm winch assembly on the inner side of the suspension arm frame through a first bolt, and fixedly connecting the suspension arm guide wheel assembly on the suspension arm frame to complete the preassembly of the suspension arm module;
(2) More than two guide blocks are symmetrically arranged along the top of the deck base;
(3) After the base module is hoisted to the position above the deck base, welding and fixing are carried out, and after welding is finished, the guide block is detached, so that the base module is installed;
(4) Hoisting the rotary platform module onto the base module, enabling the rotary platform module to slide along the guide inclined plane through the lower end of a first bolt of the rotary support to sleeve the inner ring of the rotary support on the inner side of the cylindrical part, and fixedly connecting the outer ring of the rotary support with the cylindrical part through a second bolt to complete the installation of the rotary platform module;
(5) Hoisting a truss to a rotary platform, aligning supporting legs of the truss with a connecting piece of the rotary platform, and welding the connecting part of the connecting piece with a process port for the first time;
(6) Welding for the first time to check truss connection;
(6.1) if the truss is connected without errors after the first welding is detected, carrying out second welding on the connection part of the supporting legs of the truss and the connecting piece of the rotary platform to complete the installation of the rotary platform module;
(7) Hoisting the boom module to one side of the connecting piece with a first rotating hole position on the rotating platform, and hinging the first rotating hole position of the connecting piece with a second rotating hole position on the boom frame to finish the installation of the boom module;
(8) And (5) connecting the main winch assembly, the suspension arm winch assembly and the suspension arm guide wheel assembly with a lifting hook through a steel wire rope to finish assembly.
2. The modular assembly method of a crane according to claim 1, wherein: and (6) further comprising the step (6.2) of dismantling a welding point formed at the joint of the process opening and the connecting piece if the truss is not accurately connected in the first welding inspection, and entering the step (6) again.
3. The modular assembly method of a crane according to claim 1, wherein: the rotary motors are more than two.
4. The modular assembly method of a crane according to claim 1, wherein: the crane further comprises a deck placing seat, the deck placing seat is arranged on one side of the deck base, and a suspension arm placing frame is arranged on the deck placing seat.
5. The modular assembly method of a crane according to claim 4, wherein: the suspension arm placing frame comprises a rack, rollers, roller connecting pieces and side baffles, the rollers are rotatably connected to the roller connecting pieces through pin penetrating shafts, the roller connecting pieces are fixedly installed on the top surface of the rack, and the side baffles are arranged on two sides of the top surface of the rack.
6. The modular assembly method of a crane according to claim 1, wherein: one side of the guide block, which is close to the anti-collision column, is an inclined plane, and the inclined plane of the guide block is rectangular.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011312367.9A CN112340619B (en) | 2020-11-20 | 2020-11-20 | Modular assembly method of crane |
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| CN202011312367.9A CN112340619B (en) | 2020-11-20 | 2020-11-20 | Modular assembly method of crane |
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| CN112340619A CN112340619A (en) | 2021-02-09 |
| CN112340619B true CN112340619B (en) | 2023-01-10 |
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| JPH09286590A (en) * | 1996-04-19 | 1997-11-04 | Kitagawa Iron Works Co Ltd | Method for installing jib crane placed at the upper-most floor of building |
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| CN111039194A (en) * | 2019-11-26 | 2020-04-21 | 南通振华重型装备制造有限公司 | Super-large crane final assembly process |
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2020
- 2020-11-20 CN CN202011312367.9A patent/CN112340619B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09286590A (en) * | 1996-04-19 | 1997-11-04 | Kitagawa Iron Works Co Ltd | Method for installing jib crane placed at the upper-most floor of building |
| CN105149965A (en) * | 2015-09-21 | 2015-12-16 | 上海振华重工集团（南通）有限公司 | General assembling technology for crane |
| CN109689561A (en) * | 2016-09-15 | 2019-04-26 | 伊特里克公司 | Crane, vessel comprising such a crane and method for erecting a longitudinal structure |
| CN111039194A (en) * | 2019-11-26 | 2020-04-21 | 南通振华重型装备制造有限公司 | Super-large crane final assembly process |
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