Shore crane structure

Abstract

The invention provides a quay crane structure, and relates to the technical field of quay crane structures. The quay crane structure comprises at least two girder assemblies distributed in the left-right direction, and therefore loading and unloading operation of at least two adjacent columns of containers can be achieved through the at least two girder assemblies. Meanwhile, in the door frame structure, a plurality of first supporting pipes are arranged in a square frame structure formed by a seaside upper cross beam and a trapezoidal frame, the two ends of each first supporting pipe are connected to gusset plates arranged in the middles of the two adjacent edges of the square frame structure correspondingly, and every two adjacent first supporting pipes are connected to the same gusset plate; the multiple first supporting pipes and the multiple gusset plates form a frame-shaped supporting structure, so that the overall rigidity of the trapezoidal frame is improved, shaking beams on the left side and the right side of the front girder are improved, and the overall lateral rigidity is improved.

Description

Technical Field

[0001] This invention relates to the field of quay crane technology, and more specifically, to a quay crane structure. Background Technology

[0002] A quay crane, also known as a shore-based container crane, is a device used to load and unload containers from container ships at the quayside. To improve terminal loading and unloading efficiency, multiple quay cranes typically operate side-by-side, loading and unloading containers simultaneously. A conventional quay crane has a set of main beams. Due to the width limitation of a single quay crane, quay cranes operating side-by-side can usually only handle one container at a time. This means that between containers being loaded and unloaded by two adjacent quay cranes, there is often an unloaded container, preventing adjacent quay crane operations. The cranes must wait until the container at their current location is unloaded before moving to the adjacent location to handle the unloaded container. This results in low operational efficiency and longer berthing times for container ships at the terminal, impacting the berthing of other vessels.

[0003] To address the aforementioned issues, a structure with at least two sets of main beams has been proposed in the field of quay cranes. This allows at least two sets of main beams on a single quay crane to correspond to at least two rows of containers in adjacent containers, thereby improving the loading and unloading of containers. However, the inventors have discovered that because there are at least two sets of main beams in the quay crane, the quay crane experiences uneven stress on the left and right sides during container loading and unloading, which can easily lead to tilting. Summary of the Invention

[0004] The purpose of this invention is to provide a quay bridge structure that can improve the tilting problem of quay bridges in the prior art.

[0005] Embodiments of the present invention can be implemented in the following ways:

[0006] A quay crane structure includes a portal frame structure and a main beam structure. The portal frame structure has a left-right direction and a sea-land direction. The main beam structure is installed on the portal frame structure. The main beam structure extends along the sea-land direction and forms at least two main beam assemblies distributed along the left-right direction. The at least two main beam assemblies are used for loading and unloading operations.

[0007] The door frame structure includes a sea-side upper crossbeam, a trapezoidal frame, and multiple first support tubes. The sea-side upper crossbeam and the trapezoidal frame form a square frame structure. The two ends of the first support tubes are respectively connected to node plates set at the middle positions of adjacent sides of the square frame structure, and two adjacent first support tubes are connected to the same node plate. The multiple first support tubes and the multiple node plates constitute a frame-shaped support structure.

[0008] Optionally, the trapezoidal frame includes a trapezoidal frame crossbeam and trapezoidal frame columns connected to both ends of the trapezoidal frame crossbeam. The lower end of the trapezoidal frame column is fixedly connected to the upper crossbeam on the sea side, and the upper end of the trapezoidal frame column is fixedly connected to the trapezoidal frame crossbeam. The node plate includes a first node plate and a second node plate. The first node plate is provided in the middle of the upper crossbeam on the sea side and the middle of the trapezoidal frame crossbeam, and the second node plate is provided in the middle of the trapezoidal frame column.

[0009] The two ends of the first support tube are respectively connected to the first node plate and the second node plate; the connection plane between the first support tube and the first node plate and the connection plane between the first support tube and the second node plate are perpendicular to each other.

[0010] Optionally, the first node plate has a first connecting portion that is inserted into the first support tube, the mating plane between the first connecting portion and the first support tube is a first connecting plane, and the first connecting plane extends along the land-sea direction;

[0011] The second node plate has a second connecting part that is inserted into the first support tube. The mating plane between the second connecting part and the first support tube is a second connecting plane, which extends along the left-right direction.

[0012] Optionally, both the upper crossbeam on the sea side and the upper crossbeam of the trapezoidal frame have web extension plates, and the first node plate is sandwiched between the two web extension plates.

[0013] Optionally, the second node plate includes a retaining plate and a first plate portion and a second plate portion located on both sides of the retaining plate. The first plate portion and the second plate portion each have a second connecting portion, and the retaining plate is fixedly connected to the first support tube.

[0014] Optionally, the trapezoidal frame column is further provided with a ring plate, which is sleeved on the trapezoidal frame column and clamped on the upper and lower sides of the second node plate.

[0015] Optionally, the door frame structure further includes columns, a lower crossbeam, a column crossbeam, and a plurality of second support tubes. The lower crossbeam and the column crossbeam are spaced apart vertically, and the lower crossbeam and the column crossbeam are connected between two columns spaced apart along the left-right direction. The second support tube is disposed between the lower crossbeam and the column crossbeam, and both ends of the second support tube are fixedly connected to the node plates disposed on the lower crossbeam and the column crossbeam, respectively. Two adjacent second support tubes are connected to the same node plate and form a V-shaped structure.

[0016] Optionally, the column beam has a third node plate in the middle, and the two ends of the column beam are provided with fourth node plates at the connection points with the column. The lower beam is provided with two fifth node plates spaced apart. The two ends of two of the second support tubes are respectively inserted and fixed to the fourth node plate and the fifth node plate, and the two ends of the other two of the second support tubes are respectively inserted and fixed to the third node plate and the fifth node plate.

[0017] Optionally, the second support tube is arranged in a double layer along the land-sea direction.

[0018] Optionally, the main beam structure includes a first main beam assembly and a second main beam assembly, the first main beam assembly including a first main beam and a second main beam disposed opposite to each other, and the second main beam assembly including a third main beam and a fourth main beam disposed opposite to each other.

[0019] Optionally, the second main beam and the third main beam are arranged adjacent to each other at intervals, and an eight-shaped support seat is provided between the rear beam of the second main beam and the rear beam of the third main beam. A support round tube is also connected to the eight-shaped support seat, and the other end of the support round tube is fixedly connected to the upper crossbeam on the sea side.

[0020] A first connecting truss is provided between the front beam of the first main beam and the front beam of the second main beam, and a second connecting truss is provided between the front beam of the third main beam and the front beam of the fourth main beam.

[0021] Optionally, the main beam structure includes a left main beam, a right main beam, and a middle main beam. The middle main beam has a first main beam portion and a second main beam portion distributed in the left-right direction. The left main beam and the first main beam portion form a first main beam assembly, and the right main beam and the second main beam portion form a second main beam assembly.

[0022] An octagonal crossbeam is provided on the rear beam of the middle beam, and a supporting round tube is installed on the octagonal crossbeam. The other end of the supporting round tube is fixedly connected to the upper crossbeam on the sea side.

[0023] A third connecting truss is provided between the left main beam and the middle main beam, and a fourth connecting truss is provided between the middle main beam and the right main beam.

[0024] Optionally, the door frame structure also has multiple columns, with both ends of the upper crossbeam on the sea side fixedly connected to the columns respectively; the rear beam of the left main beam passes through the columns and is rigidly connected to the columns; the rear beam of the right main beam passes through the columns and is rigidly connected to the columns.

[0025] The beneficial effects of the quay bridge structure provided by the embodiments of the present invention include:

[0026] Embodiments of the present invention provide a quay crane structure having at least two main beam assemblies distributed in a left-right direction, thereby enabling loading and unloading operations for at least two adjacent rows of containers. Simultaneously, in the portal frame structure, multiple first support tubes are installed within a square frame structure formed by the upper crossbeam and the trapezoidal frame on the sea side. The two ends of each first support tube are respectively connected to node plates located at the midpoint of adjacent sides of the square frame structure, and adjacent first support tubes are connected to the same node plate. The multiple first support tubes and multiple node plates constitute a frame-like support structure, thereby improving the overall rigidity of the trapezoidal frame, reducing swaying beams on the left and right sides of the front main beam, increasing overall lateral rigidity, and thus mitigating tilting issues. Attached Figure Description

[0027] The above-described features and advantages of the present invention will be better understood after reading the following detailed description of embodiments of the present disclosure in conjunction with the accompanying drawings. In the drawings, components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0028] Figure 1 A schematic diagram of the quay crane structure under construction according to one aspect of the present invention is shown.

[0029] Figure 2 A schematic diagram of a quay bridge structure according to one aspect of the present invention is shown.

[0030] Figure 3 It shows Figure 2 A schematic diagram of the A-side structure of the quay bridge shown;

[0031] Figure 4 A partial structural schematic diagram of a quay bridge structure according to one aspect of the present invention is shown;

[0032] Figure 5 It shows Figure 4 A schematic diagram of the local structure from the C1 perspective;

[0033] Figure 6 It shows Figure 4 A schematic diagram of the cross-sectional structure at point Q1-Q1;

[0034] Figure 7 It shows Figure 4 Schematic diagram of the cross-sectional structure at point Q2-Q2;

[0035] Figure 8 A partial structural schematic diagram of the portal frame structure in a quay crane structure provided according to one aspect of the present invention is shown.

[0036] Figure 9 It shows Figure 8 Schematic diagram of the structure in the middle E direction;

[0037] Figure 10 A schematic diagram of the hinged structure between the front beam and the rear beam in a quay crane structure provided according to one aspect of the present invention is shown.

[0038] Figure 11 A schematic diagram of the hinged structure between the front girder and the rear girder in a quay crane structure provided according to one aspect of the present invention is shown from another perspective.

[0039] Figure 12 A top view of the front girder of a quay crane structure provided according to one aspect of the present invention is shown.

[0040] Figure 13 A top view of the rear girder in a quay crane structure provided according to one aspect of the present invention is shown.

[0041] Figure 14 It shows Figure 13 A schematic diagram of the structure in the F direction shown;

[0042] Figure 15 This illustrates a tie rod assembly in a quay bridge structure according to one aspect of the invention, in such a way as... Figure 2 A schematic diagram of the structure from the perspective shown;

[0043] Figure 16 A partial structural schematic diagram of a quay bridge structure according to another aspect of the present invention is shown;

[0044] Figure 17 A top view of the front beam portion of the main beam structure in a quay crane structure provided according to another aspect of the present invention is shown.

[0045] Figure 18 A top view of the rear girder portion of the girder structure in a quay crane structure provided according to another aspect of the present invention is shown.

[0046] Figure 19 A schematic diagram of the tie rod assembly in a quay crane structure according to another aspect of the present invention is shown;

[0047] Figure 20 A top view of the tie rod assembly in a quay crane structure according to another aspect of the present invention is shown.

[0048] Figure 21 A schematic cross-sectional view of a box-type structure in a quay bridge structure provided according to another aspect of the present invention is shown.

[0049] Figure label:

[0050] 10- Shore bridge structure;

[0051] 100-Door frame structure; 110-Seaside door frame; 111-Seaside upper crossbeam; 112-Seaside lower crossbeam; 113-Seaside column crossbeam; 114-Seaside column; 120-Landside door frame; 131-Lower crossbeam; 132-Column crossbeam; 133-Column; 140-Trapezoidal frame; 141-Trapezoidal frame crossbeam; 142-Trapezoidal frame column; 143-First support pipe; 151-First node plate; 1 52-First connecting part; 153-Second node plate; 154-First plate part; 155-Second plate part; 156-Second connecting part; 157-Clamping plate; 158-Ring plate; 159-Web extension plate; 161-First support structure; 162-Second support structure; 163-Second strut; 164-Third node plate; 165-Fourth node plate; 166-Fifth node plate; 170-Connecting beam;

[0052] 200 - Main beam structure; 211 - First main beam; 212 - Second main beam; 213 - Third main beam; 214 - Fourth main beam; 215 - First main beam assembly; 216 - Second main beam assembly; 217 - Left side main beam; 218 - Right side main beam; 219 - Middle main beam; 2191 - First main beam section; 2192 - Second main beam section; 221 - Front main beam; 222 - Rear main beam; 223 - Hinge point; 231 - First connecting truss; 232 - ... 233 - Third connecting truss; 234 - Fourth connecting truss; 235 - Connecting beam; 236 - Connecting tube; 240 - V-shaped support structure; 241 - V-shaped support seat; 242 - Support tube; 243 - V-shaped beam; 251 - Main beam tail beam; 260 - Tie rod assembly; 261 - Front tie rod; 262 - Rear tie rod; 263 - Front side tie rod; 264 - Front middle tie rod; 265 - Rear side tie rod; 266 - Rear middle tie rod;

[0053] 20 containers. Detailed Implementation

[0054] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0055] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," "outer," or "vertical" appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use, and does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0056] At the same time, it should be noted that the terms "first" and "second" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0057] In the description of this invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components, etc. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Figure 1 This is a schematic diagram of the quay crane structure 10 during operation, as provided in this embodiment. Figure 2 This is a schematic diagram of the quay bridge structure 10 provided in this embodiment. Figure 3 for Figure 2 The diagram shows the A-side structure of the quay crane structure 10. Figure 4 This is a partial structural diagram of the quay crane structure 10 provided in this embodiment. Please refer to the diagram for further details. Figures 1-4 This embodiment provides a quay crane structure 10, which includes a portal frame structure 100 and a main beam structure 200. The portal frame structure 100 has a left-right direction (e.g., Figure 3 (CD direction in the middle) and sea-land direction (such as...) Figure 2 (in the AB direction), the main beam structure 200 is installed on the door frame structure 100.

[0059] Specifically, the portal frame structure 100 has multiple columns 133, as well as sea-side and land-side crossbeams. The two ends of the sea-side crossbeams are fixedly connected to two adjacent columns 133, forming a sea-side portal frame 110. The columns 133 included in the sea-side portal frame 110 can also be referred to as sea-side columns 114. The two ends of the land-side crossbeams are fixedly connected to two adjacent columns 133, forming a land-side portal frame 120. The columns 133 included in the land-side portal frame 120 can also be referred to as land-side columns. The sea-side portal frame 110 and the land-side portal frame 120 are distributed at intervals along the coastal and landward directions, and are connected by connecting beams 170, thus forming a four-corner frame structure.

[0060] The main beam structure 200 is mounted on the portal frame structure 100 and extends in the coastal direction. The main beam structure 200 has at least two main beam assemblies distributed in the left-right direction, each of which is used for loading and unloading operations. In this embodiment, there are two main beam assemblies: a first main beam assembly 215 and a second main beam assembly 216. The first main beam assembly 215 includes a pair of first main beams 211 and second main beams 212. The loading and unloading of containers 20 can be achieved through the joint operation of the first main beams 211 and second main beams 212. The main beam assembly also includes a third main beam 213 and a fourth main beam 214 arranged opposite each other. The loading and unloading of another train of containers 20 can be achieved through the joint operation of the third main beam 213 and fourth main beam 214. Therefore, the quay crane structure 10 provided in this embodiment has four main beams. It is understood that in some other embodiments, the number of main beam assemblies can be set according to requirements, for example, three main beam assemblies can be set, resulting in six main beams in the quay crane structure 10.

[0061] The seaside crossbeam includes a seaside upper crossbeam 111, with both ends of the upper crossbeam 111 fixedly connected to the upper ends of the seaside columns 114. The door frame structure 100 also includes a trapezoidal frame 140 and multiple first support tubes 143. The trapezoidal frame 140 is fixedly connected above the seaside upper crossbeam 111, and the multiple first support tubes 143 are connected to the trapezoidal frame 140 and the seaside upper crossbeam 111. The lower ends of the trapezoidal frame 140 are fixedly connected to both ends of the seaside upper crossbeam 111, thus forming a square frame structure between the seaside upper crossbeam 111 and the trapezoidal frame 140. The upper ends of the first support tubes 143 are respectively connected to node plates located at the middle positions of adjacent sides of the square frame structure, and two adjacent first support tubes 143 are connected to the same node plate. The multiple first support tubes 143 and the multiple node plates form a frame-like support structure.

[0062] Specifically, the trapezoidal frame 140 includes a trapezoidal frame crossbeam 141 and trapezoidal frame columns 142 connected to both ends of the trapezoidal frame 140. The upper end of the trapezoidal frame column 142 is fixedly connected to the trapezoidal frame crossbeam 141, and the lower end of the trapezoidal frame column 142 is fixedly connected to the seaside upper crossbeam 111. Thus, the trapezoidal frame crossbeam 141, the seaside upper crossbeam 111, and the two trapezoidal frame columns 142 are connected end to end to form a frame structure. A first node plate 151 is provided in the middle of the seaside upper crossbeam 111 and the middle of the trapezoidal frame crossbeam 141, and a second node plate 153 is provided in the middle of the trapezoidal frame column 142. In this embodiment, there are four first support tubes 143, and the two ends of the first support tubes 143 are respectively connected to the first node plate 151 and the second node plate 153. Thus, the four first support tubes 143 form a frame-shaped support structure through the four node plates. This frame-shaped support structure is roughly rhomboid in shape.

[0063] Specifically, one end of the first node plate 151 on the sea-side upper crossbeam 111 is welded and fixed to the sea-side upper crossbeam 111, and the other end is engaged with the first support pipe 143. The web extension plate 159 on the sea-side upper crossbeam 111 is clamped on both sides of the first node plate 151. Similarly, one end of the first node plate 151 on the trapezoidal frame crossbeam 141 is welded and fixed to the trapezoidal frame crossbeam 141, and the other end is engaged with the first support pipe 143. The web extension plate 159 on the trapezoidal frame crossbeam 141 is clamped on both sides of the first node plate 151. Optionally, the first support pipe 143 is a round pipe.

[0064] Figure 5 for Figure 4 A schematic diagram of the local structure from the C1 perspective. Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at point Q1-Q1. Figure 7 for Figure 4 A schematic diagram of the cross-sectional structure at point Q2-Q2. Please refer to the diagram. Figures 4-7 Furthermore, the connecting plane between the first support tube 143 and the first node plate 151 and the connecting plane between the first support tube 143 and the second node plate 153 are perpendicular to each other.

[0065] The first node plate 151 has a first connecting portion 152 that inserts into the first support tube 143. The mating plane between the first connecting portion 152 and the first support tube 143 is a first connecting plane, which extends in the land-sea direction, i.e., the first connecting plane is a plane parallel to the land-sea direction. Specifically, the first connecting portion 152 is a plate-shaped member, and the plane on which the plate surface of the first connecting portion 152 is located is the connecting plane (i.e., the first connecting plane) between the first support tube 143 and the first node plate 151. Since the first node plate 151 is fixedly connected to two first support tubes 143 at the same time, the first node plate 151 correspondingly has a first connecting portion 152 that connects and mates with the two first support tubes 143 respectively.

[0066] The second node plate 153 has a second connecting portion 156 that inserts into the first support tube 143. The mating plane between the second connecting portion 156 and the first support tube 143 is a second connecting plane, which extends in the left-right direction, i.e., the second connecting plane is a plane parallel to the left-right direction. Specifically, the second connecting portion 156 is a plate-shaped foot bone, and the plane on which the plate surface of the second connecting portion 156 is located is the connecting plane (i.e., the second connecting plane) between the first support tube 143 and the second node plate 153. Since the second node plate 153 is fixedly connected to both first support tubes 143 simultaneously, the second node plate 153 correspondingly has a second connecting portion 156 that connects and mates with both first support tubes 143 respectively.

[0067] Furthermore, the second node plate 153 includes a retaining plate 157 and a first plate portion 154 and a second plate portion 155 located on both sides of the retaining plate 157. The first plate portion 154 and the second plate portion 155 each have a second connecting portion 156, and the retaining plate 157 is fixedly connected to the first support tube 143. Specifically, the retaining plate 157 is arranged perpendicularly to the first plate portion 154 and the second plate portion 155, so that the second node plate 153 formed is approximately cross-shaped. The first support tube 143 is located on one side of the retaining plate 157 and is inserted into and engaged with the second connecting portion 156 on one side of the retaining plate 157, and is welded and fixed to the side of the retaining plate 157. In this embodiment, the second node plate 153 is formed by splicing and fixing a first plate portion 154, a second plate portion 155, and a clamping plate 157. One end of the first plate portion 154 is welded and fixed to the trapezoidal frame column 142, and the second connecting portion 156 at the other end is inserted into the first support tube 143 and welded and fixed to the first support tube 143. Similarly, one end of the second plate portion 155 is welded and fixed to the trapezoidal frame column 142, and the second connecting portion 156 at the other end is inserted into another first support tube 143 and welded and fixed to the first support tube 143. In this way, the first plate portion 154 and the second plate portion 155 achieve the welding and fixing of the two first support tubes 143. It can be understood that in some other embodiments, the second node plate 153 can also be set as an integral structure.

[0068] Furthermore, a ring plate 158 is also provided on the trapezoidal frame column 142. The ring plate 158 is sleeved on the trapezoidal frame column 142 and clamped on the upper and lower sides of the second node plate 153. In other words, the first plate portion 154 and the second plate portion 155 are respectively clamped between the ring plate 158 and the clamping plate 157.

[0069] Figure 8 This diagram shows a partial structural schematic of the portal frame structure 100 in the quay crane structure 10 provided in this embodiment. Figure 9 for Figure 8 A structural diagram along the E-direction. Please refer to the diagram. Figures 1-9 In this embodiment, the door frame structure 100 further includes a lower crossbeam 131, a column crossbeam 132, and a plurality of second support tubes 163. The lower crossbeam 131 and the column crossbeam 132 are spaced apart vertically, and are connected between two columns 133 spaced apart in the left-right direction. The second support tubes 163 are disposed between the lower crossbeam 131 and the column crossbeam 132, and both ends of the second support tubes 163 are fixedly connected to node plates disposed on the lower crossbeam 131 and the column crossbeam 132, respectively. Two adjacent second support tubes 163 are connected to the same node plate and form a V-shaped structure. Optionally, the second support tubes 163 are circular tubes.

[0070] Specifically, the lower crossbeam 131 and the column crossbeam 132 located between two adjacent seaside columns 114 are respectively the seaside lower crossbeam 112 and the seaside column crossbeam 113. Multiple second support pipes 163 are installed between the seaside lower crossbeam 112 and the seaside column crossbeam 113. These second support pipes 163 are connected to multiple node plates, thereby improving the connection reliability between the seaside lower crossbeam 112 and the seaside column crossbeam 113, and thus enhancing the rigidity of the quay crane. Correspondingly, the lower crossbeam 131 and the column crossbeam 132 located between two adjacent landside columns are respectively the landside lower crossbeam and the landside column crossbeam. Multiple second support pipes 163 are installed between the landside lower crossbeam and the landside column crossbeam. These second support pipes 163 are connected to multiple node plates, thereby improving the connection reliability between the landside lower crossbeam and the landside column crossbeam, and thus enhancing the rigidity of the quay crane.

[0071] It should be noted that, in this embodiment, the second support tube 163 structure between the seaside lower crossbeam 112 and the seaside column crossbeam 113 is the same as the second support tube 163 structure between the landside lower crossbeam and the landside upper crossbeam, and will not be described separately in the following description.

[0072] In this embodiment, a third node plate 164 is provided in the middle of the column beam 132, and a fourth node plate 165 is provided at both ends of the column beam 132 where it connects to the column 133. Two fifth node plates 166 are provided on the lower beam 131 at intervals. The two ends of two of the second support tubes 163 are respectively inserted and fixed to the fourth node plate 165 and the fifth node plate 166, and the two ends of the other two of the second support tubes 163 are respectively inserted and fixed to the third node plate 164 and the fourth node plate 165.

[0073] Specifically, the fourth node plate 165 is located at the connection between the two ends of the column beam 132 and the column 133, and the fifth node plate 166 is located between the third node plate 164 and the fourth node plate 165 in the left-right direction. In this way, the four support tubes are connected by one third node plate 164, two fourth node plates 165 and two fifth node plates 166 to form a W-shaped support structure.

[0074] Optionally, the second support tube 163 between the lower crossbeam 131 and the column crossbeam 132 is arranged in a double layer along the landward direction. Specifically, at the same lower crossbeam 131 and column crossbeam 132, two W-shaped support structures are arranged on both sides of the lower crossbeam 131 and the column crossbeam 132 along the landward direction. These two support structures are the first support structure 161 and the second support structure 162, respectively. The second support tube 163 in the first support structure 161 and the second support structure 162 are arranged facing each other along the landward direction, thus making the second support tube 163 a double layer. This structural arrangement not only improves the lateral stiffness of the quay crane as a whole, but also helps to reduce the overall weight of the crane.

[0075] Figure 10 This diagram illustrates the hinged structure between the front girder 221 and the rear girder 222 in the quay crane structure 10 provided in this embodiment. Figure 11 This diagram shows a schematic representation of the hinged structure between the front girder 221 and the rear girder 222 in the quay crane structure 10 provided in this embodiment from another perspective. Figure 12 This diagram shows a top view of the front girder 221 in the quay crane structure 10 provided in this embodiment. Figure 13 This diagram shows a top view of the rear girder 222 in the quay crane structure 10 provided in this embodiment. Figure 14 for Figure 13 The diagram shows the structural configuration along the F direction. Please refer to the reference diagram. Figures 1-14 In this embodiment, each main beam has a front main beam 221 and a rear main beam 222 that are connected to each other. The rear main beam 222 is fixedly connected to the door frame structure 100, and the front main beam 221 and the rear main beam 222 are hinged. During use, the front main beam 221 is driven to perform pitching operations by the front tie rod 261 provided at the front main beam 221.

[0076] Specifically, a hinge point 223 is provided between the front main beam 221 and the rear main beam 222. The two hinged components of the hinge point 223 can be fixedly connected to the front main beam 221 and the rear main beam 222 respectively through connecting flanges, thereby realizing the adhesive connection between the front main beam 221 and the rear main beam 222. It can be understood that in some other embodiments, the front main beam 221 and the rear main beam 222 can also be configured as a structure with direct hinged engagement.

[0077] Furthermore, in this embodiment, the main beam structure 200 includes four main beams, correspondingly having four front main beams 221. The front main beams 221 of the first main beam 211 and the front main beams 221 of the second main beam 212 are arranged in pairs, and a first connecting truss 231 is provided between the front main beams 221 of the first main beam 211 and the front main beams 221 of the second main beam 212; the front main beams 221 of the third main beam 213 and the front main beams 221 of the fourth main beam 214 are arranged in pairs, and a second connecting truss 232 is provided between the front main beams 221 of the third main beam 213 and the front main beams 221 of the fourth main beam 214, thereby improving lateral stiffness.

[0078] Specifically, the connecting truss includes connecting beams 235 and connecting tubes 236. The connecting beams 235 are positioned between two pairs of front beams 221, and both ends of the connecting beams 235 are rigidly connected to the two front beams 221 respectively. Multiple connecting beams 235 are arranged between the pairs of front beams 221. Multiple connecting tubes 236 are provided on the supports of two adjacent connecting beams 235 in the coastal direction. One of the multiple connecting tubes 236 closest to the connecting beam 235 is rigidly fixedly connected to the connecting beam 235, and its other end is fixedly connected to the front beam 221. The two ends of the remaining connecting tubes 236 are rigidly connected to the pairs of front beams 221 respectively.

[0079] Furthermore, in this embodiment, the main beam structure 200 includes four main beams, and correspondingly, it has four rear main beams 222. The rear main beams 222 of the second main beam 212 and the rear main beams 222 of the third main beam 213 are spaced apart, and a figure-eight support 241 is provided between the rear main beams 222 of the second main beam 212 and the rear main beams 222 of the third main beam 213. At the same time, a support tube 242 is connected to the figure-eight support 241, and the other end of the support tube 242 is fixedly connected to the upper crossbeam 111 on the sea side.

[0080] Specifically, the two ends of the figure-eight support 241 are fixedly connected to the rear beam 222 of the second main beam 212 and the rear beam 222 of the third main beam 213, respectively. At the same time, the two ends of the figure-eight support 241 are connected to the support tubes 242, that is, in this embodiment, two support tubes 242 are provided. The two support tubes 242 and the figure-eight support 241 form a figure-eight support structure 240. The other ends of the two support tubes 242 extend to the upper crossbeam 111 on the sea side, and the ends of the two support tubes 242 are fixedly connected to the two ends of the upper crossbeam 111 on the sea side. Thus, the two support tubes 242 are distributed in a figure-eight shape.

[0081] Furthermore, the main beam structure 200 also includes a main beam tail beam 251, through which the tail ends of the rear main beams 222 of the four main beams are connected.

[0082] Figure 15 The tie rod assembly 260 in the quay crane structure 10 provided in this embodiment is as follows: Figure 2 The diagram shows the structure from the indicated perspective. Please refer to the reference. Figure 2 and Figure 15In this embodiment, the quay crane structure 10 further includes a tie rod assembly 260, with both ends of the tie rod assembly 260 connected to the main beam structure 200 and the portal frame structure 100, respectively. The tie rod assembly 260 includes multiple rows of front tie rods 261 and multiple rows of rear tie rods 262. One end of the front tie rod 261 is connected to the front main beam 221, thereby pulling the front main beam 221 to rotate for pitching operations; one end of the rear tie rod 262 is fixedly connected to the rear main beam 222.

[0083] Specifically, in this embodiment, there are four main beams. Correspondingly, the tie rod assembly 260 has four rows of front tie rods 261 and four rows of rear tie rods 262. Each row of front tie rods 261 is connected to one front main beam 221, and each row of rear tie rods 262 is connected to one rear main beam 222. Figure 2 and Figure 15 The diagram shows a structure consisting of a row of front tie rods 261 and a row of rear tie rods 262. Optionally, in this embodiment, the front tie rods 261 have an I-beam cross-section, and the rear tie rods 262 have a circular tube cross-section. It is understood that in other embodiments, the type of tie rod can be customized as needed, for example, using steel wire ropes.

[0084] It should be noted that the specific structure of the main beam structure 200 is not limited to the form of two main beam components formed by four main beams mentioned above. It is understood that in other embodiments, other main beam structures 200 may also be adopted as needed.

[0085] As an example, Figure 16 This embodiment shows a partial structural schematic diagram of another quay bridge structure 10 provided in this embodiment. Figure 17 It shows Figure 16 The diagram shows a top view of the front girder 221 of the main girder structure 200 in the quay crane structure 10. Figure 18 It shows Figure 16 The diagram shows a top view of the rear girder 222 of the main girder structure 200 in the quay crane structure 10. Figure 19 It shows Figure 16 The diagram shows the structure of the tie rod assembly 260 in the quay crane structure 10. Figure 20 It shows Figure 16 The diagram shows a top view of the tie rod assembly 260 in the quay crane structure 10.

[0086] Please refer to the reference. Figures 16-20In this alternative quay crane structure 10, the main girder structure 200 includes a left main girder 217, a right main girder 218, and a middle main girder 219. In other words, in this alternative quay crane structure 10, the main girder structure 200 has three main girders. The middle main girder 219 is located between the left main girder 217 and the right main girder 218, and the middle main girder 219 has a first main girder section 2191 and a second main girder section 2192 distributed in the left-right direction. The left main girder 217 and the first main girder section 2191 form a first main girder assembly 215, and the right main girder 218 and the second main girder section 2192 form a second main girder assembly 216. Specifically, the middle main girder 219 adopts a bent symmetrical box girder, with the first main girder section 2191 and the second main girder section 2192 on its left and right sides respectively arranging rail beams and tracks. The left main girder 217 and the rear main girder are box-shaped bent structures, with rail beams and tracks arranged on the side closest to the middle main girder 219.

[0087] Furthermore, in this embodiment, the rear beam 222 of the left main beam 217 is disposed through the column 133 and is rigidly connected to the column 133, that is, the rear beam 222 of the left main beam 217 is disposed at the connection between the upper crossbeam and the column 133 on the left side; the rear beam 222 of the right main beam 218 is disposed through the column 133 and is rigidly connected to the column 133, that is, the rear beam 222 of the right main beam 218 is disposed at the connection between the upper crossbeam and the column 133 on the right side.

[0088] Furthermore, such as Figure 17 As shown, since the first main beam assembly 215 and the second main beam assembly 216 each include a portion of the intermediate main beam 219, a third connecting truss 233 is provided between the front main beam 221 of the left main beam 217 and the front main beam 221 of the intermediate main beam 219, and a fourth connecting truss 234 is provided between the front main beam 221 of the right main beam 218 and the front main beam 221 of the intermediate main beam 219. In this embodiment, the structure of the third connecting truss 233 is the same as the structure of the first connecting truss 231, and the structure of the fourth connecting truss 234 is the same as the structure of the second connecting truss 232. The specific structures of the third connecting truss 233 and the fourth connecting truss 234 will not be described here.

[0089] Furthermore, such as Figure 18 As shown, a figure-eight crossbeam 243 is provided on the rear beam 222 of the middle beam 219. A support round tube 242 is installed on the figure-eight crossbeam 243. The other end of the support round tube 242 is fixedly connected to the upper crossbeam 111 on the sea side. The two support round tubes 242 are distributed in a figure-eight shape.

[0090] Furthermore, such as Figure 19 and Figure 20As shown, in the main beam structure 200 of this alternative quay crane structure 10, the front main beam 221 is pulled by the front tie rod 261 for pitching operations. Specifically, the front tie rod 261 includes a front side tie rod 263 and a front middle tie rod 264. The front main beam 221 of the left main beam 217 and the front main beam 221 of the right main beam 218 are connected by the front side tie rod 263, the cross section of which is an I-beam; the front main beam 221 of the middle main beam 219 is connected by the front middle tie rod 264, the front middle tie rod 264 being a box-shaped structure (cross section shown in figure). Figure 21 (As shown). Similarly, in the main beam structure 200 of this other type of quay bridge structure 10, a rear tie rod 262 is connected at the rear main beam 222. Specifically, the rear tie rod 262 includes a rear side tie rod 265 and a rear middle tie rod 266. The rear main beam 222 of the left main beam 217 and the rear main beam 222 of the right main beam 218 are connected by the rear side tie rod 265, which has a circular cross-section. The rear main beam 222 of the middle main beam 219 is connected by the rear middle tie rod 266, which has a box-shaped structure.

[0091] The quay crane structure 10 provided in the embodiments of the present invention, by setting the main beam structure 200 to have at least two main beam components distributed in the left and right directions, can correspond to the loading and unloading operations of adjacent columns of containers 20, thereby solving the problem of loading and unloading of adjacent containers and improving the loading and unloading efficiency of the quay crane. At the same time, by setting the support structure in the portal frame structure 100 and the main beam structure 200, the lateral stiffness of the quay crane is improved, thereby ensuring the stability of the quay crane structure 10.

[0092] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A quay crane structure, the quay crane structure comprising a portal frame structure and a main beam structure, the portal frame structure having a left-right direction and a sea-land direction, the main beam structure being mounted on the portal frame structure; the main beam structure extending along the sea-land direction and forming at least two main beam assemblies distributed along the left-right direction, the at least two main beam assemblies being respectively used for loading and unloading operations; characterized in that, The door frame structure includes a sea-side upper crossbeam, a trapezoidal frame, and multiple first support tubes. The sea-side upper crossbeam and the trapezoidal frame form a square frame structure. The two ends of the first support tubes are respectively connected to node plates set at the middle positions of adjacent sides of the square frame structure, and two adjacent first support tubes are connected to the same node plate. The multiple first support tubes and the multiple node plates constitute a frame-shaped support structure.

2. The quay crane structure according to claim 1, characterized in that, The trapezoidal frame includes a trapezoidal frame crossbeam and trapezoidal frame columns connected to both ends of the trapezoidal frame crossbeam. The lower end of the trapezoidal frame column is fixedly connected to the upper crossbeam on the sea side, and the upper end of the trapezoidal frame column is fixedly connected to the trapezoidal frame crossbeam. The node plate includes a first node plate and a second node plate. The first node plate is provided in the middle of the upper crossbeam on the sea side and the middle of the trapezoidal frame crossbeam, and the second node plate is provided in the middle of the trapezoidal frame column. The two ends of the first support tube are respectively connected to the first node plate and the second node plate; the connection plane between the first support tube and the first node plate and the connection plane between the first support tube and the second node plate are perpendicular to each other.

3. The quay crane structure according to claim 2, characterized in that, The first node plate has a first connecting part that is inserted into the first support tube, and the mating plane between the first connecting part and the first support tube is a first connecting plane, which extends along the land-sea direction; The second node plate has a second connecting part that is inserted into the first support tube. The mating plane between the second connecting part and the first support tube is a second connecting plane, which extends along the left-right direction.

4. The quay crane structure according to claim 2, characterized in that, Both the upper crossbeam on the sea side and the upper crossbeam of the trapezoidal frame have web extension plates, and the first node plate is sandwiched between the two web extension plates.

5. The quay crane structure according to claim 3, characterized in that, The second node plate includes a clamping plate and a first plate portion and a second plate portion located on both sides of the clamping plate. The first plate portion and the second plate portion each have a second connecting portion, and the clamping plate is fixedly connected to the first support tube.

6. The quay crane structure according to claim 5, characterized in that, The trapezoidal frame column is also provided with a ring plate, which is sleeved on the trapezoidal frame column and clamped on the upper and lower sides of the second node plate.

7. The quay crane structure according to claim 1, characterized in that, The door frame structure also includes columns, a lower crossbeam, a column crossbeam, and multiple second support tubes. The lower crossbeam and the column crossbeam are spaced apart vertically and connected between two columns spaced apart along the left-right direction. The second support tubes are disposed between the lower crossbeam and the column crossbeam, and both ends of the second support tubes are fixedly connected to node plates disposed on the lower crossbeam and the column crossbeam, respectively. Two adjacent second support tubes are connected to the same node plate and form a V-shaped structure.

8. The quay crane structure according to claim 7, characterized in that, The column beam has a third node plate in the middle, and the two ends of the column beam are provided with fourth node plates at the connection points with the column. The lower beam is provided with two fifth node plates that are spaced apart. The two ends of two of the second support tubes are respectively inserted and fixed to the fourth node plate and the fifth node plate, and the two ends of the other two of the second support tubes are respectively inserted and fixed to the third node plate and the fifth node plate.

9. The quay crane structure according to claim 7, characterized in that, The second support tube is arranged in a double layer along the land-sea direction.

10. The quay crane structure according to claim 1, characterized in that, The main beam structure includes a first main beam assembly and a second main beam assembly. The first main beam assembly includes a first main beam and a second main beam arranged opposite to each other. The second main beam assembly includes a third main beam and a fourth main beam arranged opposite to each other.

11. The quay crane structure according to claim 10, characterized in that, The second main beam and the third main beam are arranged adjacent to each other at intervals, and an eight-shaped support seat is provided between the rear beam of the second main beam and the rear beam of the third main beam. A support round tube is also connected to the eight-shaped support seat, and the other end of the support round tube is fixedly connected to the upper crossbeam on the sea side. A first connecting truss is provided between the front beam of the first main beam and the front beam of the second main beam, and a second connecting truss is provided between the front beam of the third main beam and the front beam of the fourth main beam.

12. The quay crane structure according to claim 1, characterized in that, The main beam structure includes a left main beam, a right main beam, and a middle main beam. The middle main beam has a first main beam section and a second main beam section distributed in the left-right direction. The left main beam and the first main beam section form a first main beam assembly, and the right main beam and the second main beam section form a second main beam assembly. An octagonal crossbeam is provided on the rear beam of the middle beam, and a supporting round tube is installed on the octagonal crossbeam. The other end of the supporting round tube is fixedly connected to the upper crossbeam on the sea side. A third connecting truss is provided between the left main beam and the middle main beam, and a fourth connecting truss is provided between the middle main beam and the right main beam.

13. The quay crane structure according to claim 12, characterized in that, The door frame structure also has multiple columns, and the two ends of the upper crossbeam on the sea side are fixedly connected to the columns respectively; the rear beam of the left main beam passes through the column and is rigidly connected to the column; the rear beam of the right main beam passes through the column and is rigidly connected to the column.

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