A disassembly system for shore container crane

Abstract

The present invention provides a disassembly system for a shore-to-shore container crane, comprising: a mounting assembly for detachably attaching to both ends of a pair of upper crossbeams; and a suspension system attached to the mounting assembly for suspending the intermediate sections of the pair of upper crossbeams to allow the ladder frame, the ladder frame diagonal braces, and the beam to be disassembled from the top of the portal legs through the interior between the two sides of the portal legs to the ground. The disassembly system for a shore-to-shore container crane according to an embodiment of the present invention can safely, conveniently, and cost-effectively dismantle the upper structure of a quay crane to the ground. It can also accommodate the disassembly requirements of most quay crane models, facilitating safer, more economical, and more efficient on-site operations.

Description

Technical Field

[0001] The present invention relates to the technical field of quay crane disassembly, and in particular to a quayside container crane disassembly system. Background Art

[0002] When the equipment on the quay crane needs to be updated or replaced, or when the quay crane structure expires or exceeds its service life, the quay crane needs to be dismantled.

[0003] Common dismantling methods include pull-down dismantling and floating crane dismantling. The pull-down method involves pulling the quay crane to the ground using external force before further dismantling. This method offers low construction costs, minimal labor, and a quick turnaround time, but it is less safe and can cause varying degrees of damage to the dock surface. Floating crane dismantling involves using a floating crane to lift individual components of the quay crane to the ground from top to bottom. While this method is safe and reliable, it relies on large external equipment and is costly. Summary of the Invention

[0004] In view of this, the present invention provides a quayside container crane disassembly system, which can disassemble the quayside container crane superstructure safely, conveniently and at low cost.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to an embodiment of the present invention, the shore container crane disassembly system includes a gantry leg, a beam, a ladder frame, and a pair of ladder frame inclined rods. A pair of upper cross beams are connected between the top two sides of the gantry leg. The beam passes through the two sides of the gantry leg and is connected to the bottom of the pair of upper cross beams.

[0007] The middle sections of the pair of upper cross beams are detachably connected to their ends connected to both sides of the top of the door legs.

[0008] The bottoms of the diagonal bracing tubes on both sides of the ladder frame are respectively connected to the two ends of one of the upper crossbeams, and one end of a pair of ladder frame diagonal tie rods is connected to the top of the ladder frame, and the other end is connected to the beam close to the other upper crossbeam;

[0009] The disassembly system comprises:

[0010] a mounting assembly, the mounting assembly being detachably mounted on both ends of a pair of upper beams;

[0011] A suspension system is provided on the mounting assembly, and is used to suspend the middle sections of a pair of upper cross beams so as to dismantle the ladder frame, the ladder frame diagonal rods, and the beam from the top of the door leg through the interior between the two sides of the door leg to the ground.

[0012] Furthermore, the mounting assembly includes four supports, and the four supports are respectively arranged at the two ends of a pair of upper beams.

[0013] Furthermore, four connecting lugs are provided on a pair of the upper beams corresponding to the four supports, and the four connecting lugs are respectively provided on the ends of the upper surfaces of the pair of the upper beams.

[0014] The support includes a support body, a connecting portion is formed at one end of the support body, the connecting portion is hinged to the connecting ear plate, and a supporting leg is provided at the bottom of the other end of the support body, and the bottom of the supporting leg is provided on the side of the upper surface of the upper beam away from the connecting ear plate.

[0015] Furthermore, a notch is formed at one end of the support close to the supporting leg, and a first mounting portion and a second mounting portion are respectively formed on both sides of the notch in the direction of the symmetry axis.

[0016] The suspension system includes four groups of rope systems, which are respectively installed on the four supports. Each group of rope systems includes two rope systems, which are respectively installed on the first mounting part and the second mounting part of the support. The two rope systems on each support are used to suspend the ends of the middle sections of a pair of upper beams.

[0017] Furthermore, the support comprises two symmetrical half supports that are detachably connected.

[0018] Furthermore, the first mounting portion and the second mounting portion are respectively formed with through holes extending vertically therethrough.

[0019] Each of the rope systems comprises:

[0020] a driving oil cylinder, the driving oil cylinder being mounted on the through hole;

[0021] a cable guide, the cable guide being mounted on a side of the through hole on the first mounting portion / the second mounting portion away from the notch;

[0022] A steel strand is hung on the cable guide, and the side of the steel strand close to the notch passes through the driving cylinder and the through hole from top to bottom in sequence. The bottom end of the steel strand close to the notch is used to hang the ends of the middle sections of a pair of upper beams.

[0023] The driving oil cylinder drives the steel strand to rise and fall on the side close to the notch.

[0024] Furthermore, each of the rope systems further comprises a joist,

[0025] The two ends of the joist are respectively connected to the bottom ends of the two steel strands on the corresponding supports close to the notch, and the joist is used to support the ends of the middle sections of a pair of upper beams.

[0026] Furthermore, the joist includes a joist body and connecting plates vertically connected to both ends of the joist body.

[0027] A pair of connecting plates are respectively connected to the bottom ends of the two steel strands on each support close to the notch.

[0028] Furthermore, each of the rope systems further includes a connecting bracket,

[0029] The top end of the connecting bracket is connected to the bottom end of the steel strand on the side close to the notch, and the bottom end of the connecting bracket is hinged to the connecting plate.

[0030] Furthermore, it also includes an auxiliary device,

[0031] The auxiliary device includes a pair of cables, which are used to connect and fix the two sides of the door legs to the ground respectively. The lines between the two connection points where the pair of cables are connected to the two sides of the door legs are perpendicular to the length direction of the beam.

[0032] The above technical solution of the present invention has at least one of the following beneficial effects:

[0033] The quayside container crane disassembly system according to an embodiment of the present invention employs a mounting assembly installed on a pair of upper crossbeams at positions corresponding to the ladder frame. A suspension system is then installed on the mounting assembly to remove the ladder frame, ladder frame diagonal braces, and beam from the upper crossbeams at the top of the portal legs, and then hoist the beam through the interior of the portal legs to the ground. This system allows for the safe, convenient, and cost-effective disassembly of the quayside container crane's upper structure to the ground. It is adaptable to the disassembly requirements of most quayside container crane models, facilitating safer, more economical, and more efficient on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of an implementation of a disassembly system for a shore container crane according to an embodiment of the present invention;

[0035] Figure 2 for Figure 1 Enlarged schematic diagram of the middle A area;

[0036] Figure 3 for Figure 1 C-direction view in;

[0037] Figure 4 for Figure 3 Enlarged schematic diagram of the middle B area;

[0038] Figure 5 This is a schematic structural diagram of a support of a disassembly system for a shore container crane according to an embodiment of the present invention;

[0039] Figure 6 for Figure 5 A top view of

[0040] Figure 7 This is a schematic structural diagram of a joist of a disassembly system of a shore container crane according to an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of disassembling a ladder frame of a shore container crane disassembly system according to an embodiment of the present invention;

[0042] Figure 9 A stress cloud diagram of a support in a disassembly system of a shore container crane according to an embodiment of the present invention;

[0043] Figure 10 This is a stress cloud diagram of the joist in the disassembly system of the shore container crane according to an embodiment of the present invention.

[0044] Reference numerals: 10. Door leg; 11. Upper crossbeam; 12. Connecting ear plate; 20. Main beam; 30. Ladder frame; 31. Ladder frame diagonal rod; 40. Reinforcement pipe assembly;

[0045] 100. Mounting assembly; 110. Support; 111. Connecting portion; 112. Support leg; 113. Notch; 114. Through hole;

[0046] 200. Suspension system; 210. Rope system; 211. Driving cylinder; 212. Cable guide; 213. Steel strand; 214. Joist; 2141. Joist body; 2142. Connecting plate; 215. Connecting bracket;

[0047] 300. Auxiliary devices. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0049] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the ordinary meaning understood by persons having ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0050] First combine Figure 1 and Figure 3 A crane according to an embodiment of the present invention will be described in detail.

[0051] like Figure 1 and Figure 3 As shown, the crane includes a gantry leg 10, a beam 20, a ladder frame 30, and a pair of ladder frame diagonal rods 31. A pair of upper crossbeams 11 are connected between the top and sides of the gantry leg 10. The beam 20 passes between the two sides of the gantry leg 10 and is connected to the bottom of the pair of upper crossbeams 11.

[0052] The middle sections of the pair of upper cross beams 11 are detachably connected to their ends respectively connected to the top of the door leg 10. In other words, the middle section of the upper cross beam 11 is detachably connected to the two ends, so that after being disassembled, the middle section of the upper cross beam 11 can be directly hoisted from the top of the door leg 10 through the interior of the door leg 10 to the ground without interfering with the door leg 10.

[0053] The bottoms of the diagonal bracing tubes on both sides of the ladder frame 30 are respectively connected to the two ends of an upper beam 11 , and one end of a pair of ladder frame diagonal rods 31 is connected to the top of the ladder frame 30 , and the other end is connected to the beam 20 close to the other upper beam 11 .

[0054] The following describes a disassembly system for a shore container crane according to an embodiment of the present invention. Figure 1 and Figure 3 As shown, it may include: a mounting assembly 100 and a suspension system 200 .

[0055] The mounting assembly 100 is detachably mounted on both ends of a pair of upper beams 11 corresponding to the bottom of the ladder frame 30 .

[0056] The suspension system 200 is installed on the installation assembly 100. The suspension system 20 is used to hang the middle section of a pair of upper beams 11 to dismantle the ladder frame 30, the ladder frame diagonal rod 31, and the beam 20 from the top of the door leg 10 through the interior between the two sides of the door leg 10 to the ground.

[0057] That is, according to the disassembly system of the shore container crane according to an embodiment of the present invention, a mounting assembly 10 is provided at both ends of a pair of upper beams 11, and a suspension system 200 is provided on the mounting assembly 10 for disassembling the ladder frame 30, the ladder frame diagonal rod 31, and the beam 20 from the upper beam 11 at the top of the door leg 10, and then directly hoisting them to the ground through the interior between the two sides of the door leg 10.

[0058] Specifically, during on-site disassembly operations, before the disassembly system is installed, the quay crane components that interfere with it are pre-cut and reinforced, such as Figure 3 As shown in FIG, the lower half of the diagonal bracing tube of the ladder frame 30 at the seaside upper crossbeam 11 is cut away, disconnecting it from the end of the upper crossbeam 11. This eliminates interference between the ladder frame 30 and the portal leg 10 during disassembly and lowering. Finally, a reinforcing tube assembly 40 is installed at the bottom of the cut ladder frame 30 to secure the ladder frame 30 to the seaside upper crossbeam 11. Next, the shore-to-shore container crane disassembly system according to the present invention is installed, driving the suspension system 200 to respectively lift the middle sections of a pair of upper crossbeams 22. This allows the ladder frame 30, ladder frame diagonal braces 31, and beam 20 to be removed from the upper crossbeam 11 at the top of the portal leg 10 and then hoisted through the interior of the portal leg 10 to the ground for replacement and maintenance. Thus, the shore-to-shore container crane disassembly system according to the present invention enables safe, convenient, and cost-effective disassembly of the quay crane superstructure to the ground. It is also adaptable to the disassembly requirements of most quay crane models, facilitating safer, more economical, and more efficient on-site operations.

[0059] In some embodiments, as Figures 1-4 As shown, the mounting assembly 100 may include four supports 110 , and the four supports 110 are respectively disposed at both ends of a pair of upper beams 11 .

[0060] Therefore, by respectively providing supports 110 at the ends of a pair of upper cross beams 11, i.e., at the bottoms of the diagonal bracing tubes on both sides of the ladder frame 30 and at one side of the bottom of the ladder frame 30, the suspension system 200 can be installed, thereby being able to adapt to the position of the overall center of gravity of the quay crane superstructure for lifting, and being able to stably and reliably dismantle and lift the superstructure of the quay crane.

[0061] In some embodiments, as Figure 4 As shown, four connecting lugs 12 are provided on the pair of upper beams 11 corresponding to the four supports 110 , and the four connecting lugs 12 are respectively provided at the ends of the upper surfaces of the pair of upper beams 11 .

[0062] like Figure 4 、 Figure 5 and Figure 6As shown, the support 110 includes a support body, a connecting portion 111 is formed at one end of the support body, the connecting portion 111 is hingedly connected to the ear plate 12, and a support leg 112 is provided at the bottom of the other end of the support body, and the bottom of the support leg 112 is provided on the side of the upper surface of the upper beam 11 away from the connection ear plate 12.

[0063] Thus, one end of each support 110 is hinged to the end of the upper surface of the upper crossbeam 11 via a connecting portion 111, and the other end is supported on the side of the upper surface of the upper crossbeam 11 away from the end via a supporting leg 112. This facilitates disassembly while also ensuring that the end of the support 110 near the inner side of the door leg 10, when carrying suspended heavy objects, will not shift or tip over, resulting in a more stable structure. In addition, a rubber pad can be laid at the bottom of the supporting leg 112 of each support 110 to compensate for the height difference caused by the unevenness of the upper surface of the upper crossbeam 11 and increase the effective contact area.

[0064] The connecting portion 111 of the support 110 is connected to the connecting ear plate 12 prefabricated on the upper crossbeam 11 via a pin.

[0065] In some embodiments, as Figure 6 As shown, a notch 113 is formed at one end of the support 110 close to the supporting leg 112 , and a first mounting portion and a second mounting portion are respectively formed on both sides of the notch 113 in the direction of the symmetry axis.

[0066] like Figure 1 、 Figure 2 As shown, the suspension system 200 includes four groups of rope systems 210, which are respectively installed on four supports 110. Each group of rope systems 210 includes two rope systems 210, which are respectively installed on the first mounting part and the second mounting part of the support 110. The two rope systems 210 on each support 110 are used to suspend the ends of the middle sections of a pair of upper beams 11.

[0067] That is to say, a notch 113 is provided at the end of the support 110 facing the inner side of the door leg 10 (i.e., the end of the support 110 close to the support leg 112), and a first mounting portion and a second mounting portion are respectively formed on both sides of the notch 113 for mounting a pair of rope systems 210 on the support 110. The rope systems 210 on the first mounting portion and the second mounting portion jointly lift the ends of the middle sections of a pair of upper beams 11, thereby realizing stable disassembly and lifting of the upper structure of the quay crane.

[0068] In some embodiments, as Figure 6 As shown, the support 110 may include two symmetrical support halves that are detachably connected.

[0069] That is to say, the support 110 can be assembled from two half supports cut along the axis of the notch 113 , thereby facilitating the disassembly and transportation of the support 110 .

[0070] In some embodiments, as Figure 6 As shown, a through hole 114 is formed on the first mounting portion and the second mounting portion respectively.

[0071] like Figure 2 As shown, each rope system 210 may include a driving cylinder 211 , a cable guide 212 and a steel strand 213 .

[0072] Among them, the driving cylinder 211 is installed on the through hole 114;

[0073] The cable guide 212 is installed on a side of the through hole 114 on the first mounting portion / the second mounting portion away from the notch 113 .

[0074] The steel strand 213 is hung on the cable guide 212, and the side of the steel strand 213 close to the gap 113 passes through the driving cylinder 211 and the through hole 114 from top to bottom. The bottom end of the side of the steel strand 213 close to the gap 113 is used to hang the ends of the middle sections of a pair of upper beams 11.

[0075] The driving cylinder 211 drives the steel strand 213 to move up and down on the side close to the notch 113 .

[0076] Specifically, the rope system 210 utilizes a hydraulic cylinder 211 to pull a steel strand 213, which passes through the through-hole 114, to achieve the slinging of the middle section of the pair of upper beams 11. A reverse motion self-locking device within the hydraulic cylinder 211 drives the steel strand 213 upward and downward, reliably locking the strand 213 at any position during descent. The strand 213 descends to both sides along the cable guide 212, ensuring its placement and guidance, and enhancing the stability of the strand 213 during slinging.

[0077] The rope system 210 also includes an electromechanical-hydraulic integrated system (not shown). The hydraulic pump station in this system provides oil pressure to the drive cylinders. The steel strand length is configured for a lifting height of approximately 50 meters, meeting the dismantling requirements of most quay cranes. Controlled by the electromechanical-hydraulic integrated system, the steel strand 213 can be fine-tuned by millimeters, ensuring precise positioning and compensating for deviations.

[0078] In some embodiments, as Figure 2 As shown, the rope system 210 may also include a joist 214 .

[0079] The two ends of the joist 214 are respectively connected to the bottom ends of the two steel strands 213 on the corresponding support 110 , which are close to the notch 113 .

[0080] That is to say, a pair of rope systems 210 on each support 110 are jointly connected to a joist 214, and the ends of the middle sections of a pair of upper beams 11 are towed through the joist 214, so that the force is balanced and stable during lifting, thereby achieving stable lifting and disassembly.

[0081] In some embodiments, as Figure 7 As shown, the joist 214 includes a joist body 2141 and connecting plates 2142 vertically connected to both ends of the joist body 2141 .

[0082] A pair of connecting plates 2142 are respectively connected to the bottom ends of the two steel strands 213 on each support 110 on the side close to the notch 113 .

[0083] As an example, the joist body 2141 is a box-type structure, and the connecting plates 2142 at both ends are detachably connected to the joist body 2141. The connecting plates 2142 at both ends are hoisted by steel strands 213 to lift the joist body 2141, so that the joist body 2141 lifts the two ends of the structural members to be lowered, and drives the upper structure of the entire quay crane to descend together.

[0084] The gap between the connecting plates 2142 at both ends matches the gap between the pair of drive cylinders 211 on the support 110, thereby ensuring the verticality of the steel strands 213. Furthermore, the interior of the joist body 2141 is provided with a pair of reinforcing ribs spaced 1.25m apart (corresponding to dimension F) and a pair of reinforcing ribs spaced 1.5m apart (corresponding to dimension G) on either side of the central axis to accommodate upper crossbeams 11 of varying widths.

[0085] In some embodiments, as Figure 2 As shown, each cord system 210 may also include a connection bracket 215 .

[0086] The top end of the connecting bracket 215 is connected to the bottom end of the steel strand 213 on the side close to the notch 113 , and the bottom end of the connecting bracket 215 is hinged to the connecting plate 2142 .

[0087] That is, the connecting plate 2142 of the joist 214 and the steel strand 213 are transitionally connected via the connecting bracket 215, wherein the steel strand 213 is fastened to the upper end of the connecting bracket 215, and the lower end of the connecting bracket 215 is hinged to the connecting plate 2142 via a pin. Thus, the pin connection effectively releases the bending moment generated by the deformation of the door leg 10 along the direction of the trolley's travel during the lowering process, thereby ensuring the straightness of the driving cylinder 211 and the steel strand 213 and preventing local bending and damage to the steel strand 213.

[0088] In some embodiments, as Figure 3 As shown, the shore container crane disassembly system may further include an auxiliary device 300 .

[0089] Among them, the auxiliary device 300 includes a pair of cables, which are used to connect and fix the two sides of the door leg 10 to the ground respectively, and the line between the two connection points of the pair of cables connected to the two sides of the door leg is perpendicular to the length direction of the beam 20.

[0090] Specifically, by setting cables on both sides of the door leg 10 in the direction of vehicle travel (the length direction of the beam 20) to fix the door leg 10 to the ground, the overall stability of the door leg 10 is ensured during the process of disassembling and hoisting the ladder frame 30.

[0091] The following describes in detail the operation process of the disassembly system of the shore container crane according to the embodiment of the present invention.

[0092] During on-site operation, before disassembling the system and installing it, first cut off and strengthen the quay crane components that interfere with it (such as Figure 3 As shown in , the lower half of the diagonal bracing tube of the ladder frame at the upper crossbeam on the sea side is cut off to disconnect it from the upper crossbeam and eliminate interference, and the reinforcing pipe assembly 40 is installed to mount the ladder frame on the upper crossbeam on the sea side; and part of the machine room is dismantled, etc.), and connecting ear plates 12 are pre-fabricated at the corresponding positions on the upper crossbeam 11. Secondly, the cables are installed in place on both sides of the door leg 10 in the direction of the trolley's travel and tightened. After the left and right half-supports are connected with bolts on the ground, they are hoisted into place as a whole with a car crane, and the tail of the support 110 is connected to the connecting ear plate 12 with a pin shaft. After the driving cylinder 211 and the cable guide 212 are installed in place, the steel strand 213 is threaded through the driving cylinder 211 and the through hole 114, and connected in series with the support beam 214. After the electromechanical and hydraulic integrated system is debugged, the lowering and disassembly operation is carried out, and the middle section of the upper crossbeam 11 is displaced relative to its two ends and lowered to the ground, as shown Figure 8 shown.

[0093] The quayside container crane disassembly system according to the embodiment of the present invention can meet the following requirements:

[0094] (1) The load capacity is 1600T, and each corner can carry 400T (four corners in total);

[0095] (2) Ability to place disassembly tooling for quay cranes of different structural sizes (e.g. different door leg widths, etc.);

[0096] (3) The upper structure of the quay crane can be lowered infinitely to meet the dismantling requirements of quay cranes with different lifting heights;

[0097] (4) Compact structure, less tooling, and no space occupation;

[0098] (5) Modular assembly and unloading to minimize on-site welding and cutting workload;

[0099] (6) All components can be placed in a container for transportation;

[0100] (7) Reduce the rental of large external equipment;

[0101] (8) Reusable;

[0102] (9) Small construction workload and short construction period;

[0103] (10) There are no additional requirements for the terminal load, and it is highly versatile.

[0104] The disassembly system for the shore-side container crane of this embodiment features a compact design with minimal tooling, and does not exceed the length and width of the quay crane area. All components are modularly assembled and unassembled, allowing for transport in containers. Beyond preliminary work such as cutting and reinforcing the quay crane interference areas and prefabricating connecting lugs, the entire system requires no flames for installation, reducing environmental pollution from smoke, dust, sanding, and repainting. On-site installation requires only a 220T truck crane, and lowering operations do not require large external equipment. All components are reusable, minimizing on-site construction workload, ensuring a safe and reliable operation, and shortening the construction cycle.

[0105] In addition, the disassembly system for the shore container crane according to the embodiment of the present invention also performs stress analysis on the support and the joist respectively.

[0106] Figure 9 and Figure 10 The stress levels of the supports and joists in this disassembly system were revealed during the structural analysis of the modeled structure based on the maximum load state. Based on a total lowering weight of 1600 tons, converted to 200 tons per drive cylinder and 30 tons per cable guide, the maximum stress in the supports and joists was 263.2 MPa and 246.3 MPa, respectively. Both the supports and joists are made of Q355B material, which has a yield stress of 355 MPa. With a safety factor of 1.33, the allowable stress is 267 MPa, placing these results within the safety range.

[0107] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A disassembly system for a shore container crane, comprising a gantry leg, a beam, a ladder frame, and a pair of ladder frame diagonal tie rods. A pair of upper crossbeams are connected between the tops of the gantry legs. The beam passes between the two sides of the gantry legs and is connected to the bottoms of the pair of upper crossbeams. in, The middle sections of a pair of upper cross beams are detachably connected to their ends connected to both sides of the top of the door legs. The bottoms of the diagonal bracing tubes on both sides of the ladder frame are respectively connected to the two ends of one of the upper crossbeams, and one end of a pair of ladder frame diagonal tie rods is connected to the top of the ladder frame, and the other end is connected to the beam close to the other upper crossbeam; Characterized in that, the disassembly system comprises: a mounting assembly, the mounting assembly being detachably mounted on both ends of a pair of upper beams; a suspension system, the suspension system being provided on the mounting assembly and being used to suspend the middle sections of a pair of the upper cross beams so as to dismantle the ladder frame, the ladder frame diagonal rods, and the beam from the top of the door leg through the interior between the two sides of the door leg to the ground; Wherein, the mounting assembly includes four supports, and the four supports are respectively provided at the two ends of a pair of upper beams; Four connecting lugs are provided on a pair of the upper beams corresponding to the four supports, and the four connecting lugs are respectively provided at the ends of the upper surfaces of the pair of the upper beams. The support includes a support body, a connecting portion is formed at one end of the support body, the connecting portion is hinged to the connecting ear plate, and a support leg is provided at the bottom of the other end of the support body, and the bottom of the support leg is provided on a side of the upper surface of the upper crossbeam away from the connecting ear plate; A notch is formed at one end of the support close to the support leg, and a first mounting portion and a second mounting portion are formed on both sides of the notch in the direction of the symmetry axis. The suspension system includes four groups of rope systems, which are respectively installed on the four supports. Each group of rope systems includes two rope systems, which are respectively installed on the first mounting portion and the second mounting portion of the support. The two rope systems on each support are used to suspend the ends of the middle sections of a pair of upper beams. The first mounting portion and the second mounting portion are respectively formed with through holes extending vertically therethrough. Each of the rope systems comprises: a driving oil cylinder, the driving oil cylinder being mounted on the through hole; a cable guide, the cable guide being mounted on a side of the through hole on the first mounting portion / the second mounting portion away from the notch; A steel strand is hung on the cable guide, and the side of the steel strand close to the notch passes through the driving cylinder and the through hole from top to bottom in sequence. The bottom end of the steel strand close to the notch is used to hang the ends of the middle sections of a pair of upper beams. The driving oil cylinder drives the steel strand to rise and fall on the side close to the notch.

2. The disassembly system of the shore container crane according to claim 1, characterized in that: The support comprises two symmetrical half supports which are detachably connected.

3. The disassembly system of the shore container crane according to claim 1, characterized in that: Each of said rope systems further comprises a joist, The two ends of the joist are respectively connected to the bottom ends of the two steel strands on the corresponding supports close to the notch, and the joist is used to support the ends of the middle sections of a pair of upper beams.

4. The disassembly system of the shore container crane according to claim 3, characterized in that: The joist includes a joist body and connecting plates vertically connected to both ends of the joist body. A pair of connecting plates are respectively connected to the bottom ends of the two steel strands on each support close to the notch.

5. The disassembly system of the shore container crane according to claim 4, characterized in that: Each of the rope systems further comprises a connecting bracket, The top end of the connecting bracket is connected to the bottom end of the steel strand on the side close to the notch, and the bottom end of the connecting bracket is hinged to the connecting plate.

6. The disassembly system of the shore container crane according to claim 1, characterized in that: Also includes auxiliary devices, The auxiliary device includes a pair of cables, which are used to connect and fix the two sides of the door legs to the ground respectively. The lines between the two connection points where the pair of cables are connected to the two sides of the door legs are perpendicular to the length direction of the beam.

Images