Quayside container crane with machine house

Abstract

The embodiment of the present application provides a machine room for a shore crane and a shore container crane, and relates to the field of machine rooms of shore cranes. The machine room is designed to improve the problem of excessive wind load of the machine room. The machine room has a symmetric octagonal shape, including a front wall surface and a rear wall surface parallel to the direction of the rail of the shore crane, a left front inclined surface and a right front inclined surface connected to the front wall surface, a left rear inclined surface and a right rear inclined surface connected to the rear wall surface, a left side surface connecting the left front inclined surface and the left rear inclined surface, and a right side surface connecting the right front inclined surface and the right rear inclined surface; the left front inclined surface, the right front inclined surface, the left rear inclined surface and the right rear inclined surface form an angle of 120°±5° with the direction of the rail of the shore crane. The shore container crane comprises the machine room for the shore crane. The symmetric octagonal shape effectively reduces the wind load stress area in the direction of the rail of the shore crane. According to calculation, compared with the existing rectangular machine room, the wind load of the wall surface of the machine room is effectively reduced by about 20%.

Description

Technical Field

[0001] This invention relates to the field of quay crane machine rooms, and more specifically, to a machine room for quay cranes and a quay container crane. Background Technology

[0002] In the complex environment of quay container crane operations, the impact of wind cannot be underestimated. During operations, there are not only continuous and stable working winds but also transient winds. Working winds are relatively stable, and cranes are typically designed to take them into account to ensure stable operation under normal wind conditions. However, transient winds are characterized by their suddenness and drastic changes in wind force; their intensity can increase rapidly in a short period, posing a significant challenge to the cranes.

[0003] When a sudden gust of wind is too strong, the walls of the machine room facing the trolley are the first to be affected, bearing an immense wind load. Due to the large surface area of ​​the walls, the wind force they experience is multiplied under strong winds. As a crucial component of the crane, the structural stability of the machine room directly impacts the overall operational safety of the crane. Excessive wind load can create significant stress on the walls; if this stress exceeds the walls' bearing capacity, it can lead to deformation or even damage.

[0004] More seriously, this strong wind load will be transmitted to the crane's trolley structure, causing the crane to shift along the trolley tracks. This shift could be a slow slide or a sudden jerking motion; either way, it will severely affect the crane's normal operation. During the shift, the crane's positioning accuracy will drop significantly, making it impossible to accurately lift containers to their designated positions, resulting in reduced operational efficiency. Furthermore, the shift may also cause the crane to collide with other equipment or buildings, causing equipment damage and safety accidents. Summary of the Invention

[0005] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0006] The present invention aims to, for example, provide a machine room for a quay crane and a quay container crane, which can improve the problem of working wind and instantaneous wind during the operation of a quay container crane. When the instantaneous wind is too strong, the wall of the machine room in the direction of the trolley is subjected to excessive wind load, which causes the crane to be displaced along the trolley track and affects the normal operation of the crane.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] An embodiment of the present invention provides a machine room for a quay crane. The machine room has a symmetrical octagonal shape and includes a front wall and a rear wall parallel to the direction of the quay crane track, a left front slope and a right front slope connecting the front wall, a left rear slope and a right rear slope connecting the rear wall, a left side connecting the left front slope and the left rear slope, and a right side connecting the right front slope and the right rear slope.

[0009] The left front inclined plane, the right front inclined plane, the left rear inclined plane, and the right rear inclined plane form an angle of 120°±5° with the direction of the quay crane track.

[0010] In addition, the machine room for the quay crane provided in the embodiments of the present invention may also have the following additional technical features:

[0011] Optionally, the angle between the left front slope and the left side slope is 150°±5°; the angle between the right front slope and the right side slope is 150°±5°.

[0012] Optionally, the machine room is provided with multiple frame columns, which are spaced apart along the outline of an octagon, and the axis of the frame columns is parallel to the corresponding wall surface.

[0013] Optionally, the machine room includes an electrical room and a PLC room, with the electrical room located adjacent to the seaside area of ​​the rear wall and the PLC room located adjacent to the seaside area of ​​the electrical room.

[0014] Optionally, the machine room is equipped with a workbench, an air compressor, and a sliding floor window. The workbench, the air compressor, and the sliding floor window are arranged sequentially on the sea side of the PLC room, and the vertical projection of the sliding floor window partially overlaps with the vertical projection of the area covered by the vehicle service range.

[0015] Optionally, the machine room is equipped with high-voltage equipment, which is located adjacent to the electrical room on the sea side, with the PLC room located on the left side and the high-voltage equipment located on the right side; the vertical projection of the outer contour of the high-voltage equipment coincides with the vertical projection of the area covered by the vehicle service range.

[0016] Optionally, the vertical projection range of the service area covered by the vehicle is the vertical projection range of the area that the vehicle hook can lift.

[0017] Optionally, the machine room is provided with a machine room door, an electrical room door, and a PLC room door. The PLC room door is located on the sea side of the PLC room, and the electrical room door is located on the land side of the machine room and is provided corresponding to the electrical room. The machine room is provided with one machine room door on the sea side and one on the land side, and one of the machine room doors is located adjacent to the electrical room door.

[0018] Optionally, the machine room is located on the landside of the landside upper beam member and above the quay crane main beam member, with the quay crane main beam member perpendicular to the landside upper beam member.

[0019] Embodiments of the present invention also provide a quay crane. The quay crane includes a machine room for the quay crane.

[0020] The beneficial effects of the machine room for the quay crane and the quay container crane of the present invention include, for example:

[0021] The machine room for the quay crane is symmetrically octagonal in shape, including a front wall and a rear wall parallel to the direction of the quay crane's main track, a left front slope and a right front slope connecting the front wall, a left rear slope and a right rear slope connecting the rear wall, a left side connecting the left front slope and the left rear slope, and a right side connecting the right front slope and the right rear slope; the left front slope, right front slope, left rear slope, and right rear slope form an angle of 120°±5° with the direction of the quay crane's main track.

[0022] The machine room's shape has been changed from a rectangle or an inverted L-shape to a symmetrical octagon, effectively reducing the area affected by wind loads in the direction of the quay crane track. Calculations show that compared to the current rectangular machine room, the wind load on the machine room walls is effectively reduced by approximately 20%.

[0023] The quayside container crane includes the machine room for the aforementioned quay crane, which solves the problem of excessive wind load on the quay crane machine room and effectively reduces the wind load on the machine room. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a structural schematic diagram of the machine room for a quay crane provided in an embodiment of the present invention.

[0026] Icons: Fitter workbench-1; Air compressor-2; Frame column-3; PLC room-4; Electrical room-5; Quay crane main beam component-6; Electrical cabinet-7; Machine room wall-8; High voltage equipment-9; Landside upper crossbeam component-10; Sliding floor window-11. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The following is combined Figure 1 The machine room for the quay crane provided in this embodiment will be described in detail.

[0032] Please refer to Figure 1 An embodiment of the present invention provides a machine room for a quay crane. The machine room has a symmetrical octagonal shape and includes a front wall and a rear wall parallel to the direction of the quay crane's track, a left front slope and a right front slope connecting the front wall, a left rear slope and a right rear slope connecting the rear wall, a left side connecting the left front slope and the left rear slope, and a right side connecting the right front slope and the right rear slope. The left front slope, right front slope, left rear slope, and right rear slope form an angle of 120°±5° with the direction of the quay crane's track.

[0033] A quay crane's equipment is a compartment installed on a quay container crane to house various equipment, control devices, and provide space for personnel to operate and maintain it. A symmetrical octagon is a geometric shape with eight sides that is symmetrical about one or more axes of symmetry. The front and rear walls are two opposing walls parallel to the quay crane's trolley track. The left front, right front, left rear, and right rear ramps are ramps connecting the corresponding sides of the front and rear walls, respectively. The left and right sides are the two sides connecting the left front and left rear ramps, and the right front and right rear ramps. The quay crane's trolley track direction is the direction along which the quay crane trolley moves.

[0034] The machine room adopts a symmetrical octagonal shape design, with each wall panel combined according to a specific positional relationship to form a unique machine room structure. The left front slope, right front slope, left rear slope, and right rear slope form an angle of 120°±5° with the direction of the quay crane track. This angle design can optimize the stress distribution of the machine room and reduce wind resistance.

[0035] The symmetrical octagonal shape and the angled design help improve the aerodynamic performance of the machine room, reduce the wind force on the machine room, and improve the stability of the quay crane under adverse weather conditions; at the same time, the reasonable wall layout provides more space and flexibility for the installation and layout of internal equipment.

[0036] The wind force coefficient of the machine room was analyzed using CFD numerical simulation with Fluent software. The results showed that, compared to a rectangular cross-section, the octagonal cross-section, with its sloping design in the windward direction, guides airflow more smoothly, delays airflow separation, and reduces turbulence intensity in the wake region, thereby reducing pressure drag and ultimately lowering wind load. According to the CFD calculations, compared to the rectangular model, the octagonal model, with its left front, right front, left rear, and right rear slopes at 120° to the quay crane track direction, effectively reduced the wind load on the machine room walls by approximately 20%, which is lower than the wind load on the machine room walls of the rectangular model.

[0037] Reference Figure 1 In this embodiment, the angle between the left front slope and the left side slope is 150°±5°; the angle between the right front slope and the right side slope is 150°±5°.

[0038] The left front slope forms an angle of 150°±5° with the left side, and the right front slope forms an angle of 150°±5° with the right side, which can improve the overall structural stability of the machine room. Appropriate angles can enhance the structural stability of the machine room, reduce stress concentration caused by external forces such as wind and equipment vibration, and extend the service life of the machine room.

[0039] Reference Figure 1 In this embodiment, the machine room is provided with a plurality of frame columns 3, which are spaced apart along the outline of an octagon, and the axis of the frame column 3 is parallel to the corresponding wall surface.

[0040] The octagonal outline refers to the shape of the machine room in the plan layout. That is, from a top view or a plane view, the boundary of the machine room is formed by eight straight line segments connected in sequence to form a closed octagonal area.

[0041] Multiple frame columns 3 are spaced apart along an octagonal outline. The octagonal shape evenly distributes the load, transferring the load from the upper structure and equipment to the foundation. The column axes are parallel to the wall surface, ensuring coordinated stress distribution and enhancing stability. The technical effects are significant: it greatly enhances the structural strength of the machine room, improving its earthquake and wind resistance; the octagonal shape optimizes space utilization, resulting in a more spacious interior under the same conditions; the rational column arrangement provides support for equipment installation while reducing interference; the equipment layout is compact and orderly, leaving sufficient operating and maintenance passages, reducing the failure rate, and improving the operating efficiency of the production system.

[0042] Reference Figure 1 In this embodiment, the machine room is equipped with an electrical room 5 and a PLC room 4. The electrical room 5 is located adjacent to the sea side area of ​​the rear wall, and the PLC room 4 is located adjacent to the sea side area of ​​the electrical room 5.

[0043] Electrical room 5 is used to install electrical control equipment, power distribution equipment, etc. PLC room is used to install programmable logic controllers (PLCs) and related equipment; the PLCs are used to automate the control of the quay crane. The layout of electrical room 5 is determined based on the size and number of electrical panels or cabinets 7. The seaside area is the area facing the ocean.

[0044] The electrical room 5 is located adjacent to the PLC room on the seaside area of ​​the rear wall. This layout is based on the logical relationship between electrical and automation control, as well as operational convenience. The electrical room 5 provides power to the PLC room, and their adjacent placement reduces cable length, signal interference, and energy loss. Furthermore, placing them on the seaside facilitates connection and control with other seaside equipment on the quay crane.

[0045] The layout of electrical and control equipment has been optimized, improving the connection efficiency and signal transmission quality between devices; reducing cable laying length and cost, and lowering maintenance difficulty; and facilitating the operation and monitoring of electrical and control systems by staff, thereby improving work efficiency.

[0046] Reference Figure 1 In this embodiment, the machine room is equipped with a workbench 1, an air compressor 2 and a sliding floor window 11. The workbench 1, the air compressor 2 and the sliding floor window 11 are arranged sequentially on the sea side of the PLC room 4, and the vertical projection of the sliding floor window 11 coincides with the vertical projection of the area covered by the vehicle service range.

[0047] Fitter's workbench 1 is a workbench for fitters to perform equipment maintenance, assembly, and other operations. Air compressor 2 is a device that compresses and stores air to provide pneumatic power to other equipment. Sliding floor window 11 is a floor window that can be slid open. Overhead crane service coverage area: The space that the quay crane needs to cover during maintenance operations.

[0048] On the sea side of the PLC room, a workbench 1, an air compressor 2, and a sliding floor window 11 are arranged sequentially, with the vertical projection of the sliding floor window 11 partially overlapping with the vertical projection of the area covered by the quay crane's service range. This design is to meet the needs of quay crane maintenance and operation. The workbench 1 provides operating space for maintenance personnel, the air compressor 2 provides power for pneumatic tools, and the sliding floor window 11 facilitates maintenance personnel's observation and operation of equipment within the quay crane's service range. The partially overlapping projection design ensures convenience and visibility for maintenance operations. This improves the maintenance efficiency of the quay crane, allowing maintenance personnel to complete multiple maintenance operations in a relatively concentrated area. The overlap between the sliding floor window 11 and the quay crane's service range allows maintenance personnel to more intuitively observe equipment operation and promptly identify and resolve problems. The rational equipment layout also improves space utilization, making the machine room more neat and orderly.

[0049] Reference Figure 1 In this embodiment, a high-voltage device 9 is installed in the machine room. The high-voltage device 9 is installed adjacent to the electrical room 5 on the sea side, and the PLC room 4 is located on the left side, while the high-voltage device 9 is located on the right side. The vertical projection of the outer contour of the high-voltage device 9 coincides with the vertical projection of the area covered by the vehicle service range.

[0050] High-voltage equipment 9 is equipment used to generate, transmit and distribute high-voltage electrical energy, and may be used in quay cranes to drive large motors, etc.

[0051] The high-voltage equipment 9 is arranged adjacent to the electrical room 5 on the sea side, with the PLC room on the left and the high-voltage equipment 9 on the right. The vertical projection of the outer contour of the high-voltage equipment 9 partially overlaps with the vertical projection of the service area covered by the crane. This arrangement considers the power connection between the high-voltage equipment 9 and the electrical room 5, as well as the convenience of crane maintenance operations. The adjacent arrangement of the high-voltage equipment 9 and the electrical room 5 reduces power transmission losses and improves power supply efficiency; while the overlapping projection with the service area of ​​the crane facilitates monitoring and operation of the high-voltage equipment 9 by maintenance personnel during crane maintenance.

[0052] Reference Figure 1 In this embodiment, the vertical projection range of the service area covered by the vehicle is the vertical projection range of the area that the vehicle hook can lift.

[0053] By clearly defining the vertical projection range of the service area, it is ensured that maintenance personnel can carry out maintenance work safely and effectively within that area.

[0054] Reference Figure 1In this embodiment, the machine room is equipped with a machine room door, an electrical room door 5, and a PLC room door 4. The PLC room door 4 is located on the sea side of the PLC room 4, and the electrical room door 5 is located on the land side of the machine room and is set in accordance with the electrical room 5. There is a machine room door on the sea side and a machine room door on the land side of the machine room, and one of the machine room doors is set adjacent to the electrical room door 5.

[0055] The machine room door is the entrance and exit for the machine room. The electrical room 5 door is the entrance and exit for electrical room 5. The PLC room door is the entrance and exit for the PLC room. The sea side faces the ocean. The land side faces the land.

[0056] The machine room has doors on both the seaside and landside sides. One of these doors is adjacent to the door to Electrical Room 5. The PLC room door is located on the seaside side of the PLC room, and the door to Electrical Room 5 is located on the landside side of the machine room, corresponding to Electrical Room 5. This improves the efficiency of personnel and equipment access, facilitating rapid movement of staff between different areas. The rational door layout also enhances the security and airtightness of the machine room, preventing external dust and rainwater from entering. Simultaneously, it provides convenient conditions for equipment installation, commissioning, and maintenance, reducing operating time and costs.

[0057] Reference Figure 1 In this embodiment, the machine room is located on the landside of the upper crossbeam member 10 and above the quay crane beam member 6, with the quay crane beam member 6 perpendicular to the upper crossbeam member 10.

[0058] The landside upper crossbeam component 10 is the upper crossbeam structure of the landside section of the quay crane. The quay crane main beam component 6 is the main load-bearing beam structure of the quay crane. This design fully utilizes the structural space of the quay crane, making the layout of the machine room more rational; the stable support structure ensures the safety of the machine room during quay crane operation and reduces the impact of vibration and swaying on the equipment inside the machine room; at the same time, this layout also contributes to the overall aesthetics and harmony of the quay crane.

[0059] Embodiments of the present invention also provide a quay crane. The quay crane includes a machine room for the quay crane.

[0060] A quay crane is a large lifting device used in ports, docks and other places to load, unload and move containers.

[0061] A quay container crane includes the aforementioned machine room for quay cranes, meaning that the quay container crane adopts the various technical features and design concepts of that machine room. By integrating these technologies, the quay container crane has been optimized in terms of structure, function, operation, and maintenance. This improves the overall performance and reliability of the quay container crane, including structural stability, electrical control efficiency, and ease of maintenance; enhances the crane's adaptability to different environmental conditions, such as wind resistance; and, at the same time, the rational design reduces the crane's manufacturing and maintenance costs, improving port loading and unloading efficiency and economic benefits.

[0062] According to the embodiment provided, the working principle of the quay crane machine room includes: adopting an octagonal machine room that can reduce wind load, and reducing wind load by setting the angle of the machine room walls, thereby ensuring the normal operation of the crane.

[0063] Specifically, the machine room is located on the landside of the upper crossbeam component 10, above the quay crane main beam component 6; the machine room frame columns 3 are added or adjusted to meet the symmetrical octagonal shape of the machine room, and the machine room walls of the machine room enclosure (walls) are adjusted to form a 120-degree angle with the sea and landside walls; the electrical room 5 is arranged according to the size and number of electrical panels / cabinets, and is located on the landside of the entire machine room; the PLC room 4 is located on the seaside of the electrical room 5; the workbench 1, air compressor 2, and sliding floor window 11 are located on the seaside of the PLC room 4, and the sliding floor window 11 must be within the coverage area of ​​the crane service range; the high-voltage equipment 9 is located on the seaside of the electrical room 5, on the opposite side of the PLC room 4, and the high-voltage equipment 9 must be within the coverage area of ​​the crane service range; according to the above arrangement, the machine room door, the door of the electrical room 5, and the door of the PLC room 4 are located.

[0064] The overall layout of the machine room was changed. By adjusting the positioning of the machine room frame columns 3, PLC room 4, electrical room 5, and sliding floor window 11, the symmetrical octagonal shape of the machine room was completed, while taking into account all the functions of the machine room.

[0065] The machine room for a quay crane provided in this embodiment has at least the following advantages:

[0066] The machine room's shape has been changed from a rectangle or an inverted L-shape to a symmetrical octagon, effectively reducing the area affected by wind loads in the direction of the quay crane track. Calculations show that compared to the current rectangular machine room, the wind load on the machine room walls is effectively reduced by approximately 20%.

[0067] 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 machine room for a quay crane, characterized in that: The machine room is symmetrically octagonal in shape, including a front wall and a rear wall parallel to the direction of the quay crane track, a left front slope and a right front slope connecting the front wall, a left rear slope and a right rear slope connecting the rear wall, a left side connecting the left front slope and the left rear slope, and a right side connecting the right front slope and the right rear slope. The left front inclined plane, the right front inclined plane, the left rear inclined plane, and the right rear inclined plane form an angle of 120°±5° with the direction of the quay crane track; The angle between the left front slope and the left side slope is 150°±5°; the angle between the right front slope and the right side slope is 150°±5°.

2. The machine room for the quay crane according to claim 1, characterized in that: The machine room is equipped with multiple skeleton columns, which are spaced apart along the outline of an octagon, and the axis of each skeleton column is parallel to the corresponding wall surface.

3. The machine room for the quay crane according to claim 1, characterized in that: The machine room includes an electrical room and a PLC room. The electrical room is located adjacent to the seaside area of ​​the rear wall, and the PLC room is located adjacent to the seaside area of ​​the electrical room.

4. The machine room for the quay crane according to claim 3, characterized in that: The machine room is equipped with a workbench, an air compressor, and a sliding floor window. The workbench, the air compressor, and the sliding floor window are arranged sequentially on the sea side of the PLC room, and the vertical projection of the sliding floor window partially overlaps with the vertical projection of the area covered by the vehicle service range.

5. The machine room for the quay crane according to claim 4, characterized in that: The machine room is equipped with high-voltage equipment, which is located adjacent to the electrical room on the sea side. The PLC room is located on the left side, and the high-voltage equipment is located on the right side. The vertical projection of the outer contour of the high-voltage equipment coincides with the vertical projection of the area covered by the vehicle service range.

6. The machine room for the quay crane according to claim 5, characterized in that: The vertical projection range of the service area covered by the vehicle is the vertical projection range of the area that the vehicle hook can lift.

7. The machine room for the quay crane according to claim 3, characterized in that: The machine room is equipped with a machine room door, an electrical room door, and a PLC room door. The PLC room door is located on the sea side of the PLC room, and the electrical room door is located on the land side of the machine room, corresponding to the electrical room. There is one machine room door on the sea side and one on the land side of the machine room, with one machine room door adjacent to the electrical room door.

8. The machine room for the quay crane according to claim 1, characterized in that: The machine room is located on the landside of the landside upper beam member and above the quay crane main beam member, which is perpendicular to the landside upper beam member.

9. A quayside container crane, characterized in that, The quay crane includes the machine room for the quay crane as described in any one of claims 1-8.

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