A port cargo handling portal crane
By combining fixed and rotating column designs with electric push rods and pneumatic support columns, the gantry crane for port cargo transportation achieves all-around operation and stability, solving the problems of inconvenient movement and low efficiency of traditional port cranes, and improving work efficiency and safety.
Patent Information
- Application Number
- CN202522010330.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Traditional port cranes cannot operate in all directions, are inconvenient to move, have a small lifting capacity, consume a lot of labor, and have low work efficiency.
The design incorporates fixed and rotating columns, combined with electric push rods and pneumatic support columns, enabling 360° rotation and cantilever length adjustment, thus enhancing the lifting coverage and stability. Movement and load distribution are achieved through pulley blocks and grounding.
It improved work efficiency, increased the lifting coverage area, ensured the stability and safety of the equipment, and reduced manpower consumption.
Smart Images
Figure CN224590604U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of port cranes, specifically relating to a gantry crane for port freight transport. Background Technology
[0002] Port cranes are typically used in port operations and are not as tall as tower cranes. Traditional port cranes cannot operate in all directions, are inconvenient to move, have a small lifting capacity, consume a lot of labor, and are not very efficient. Utility Model Content
[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a gantry crane for port cargo transportation to solve the problems mentioned in the background technology.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A gantry crane for port cargo transportation includes a pulley block, a support frame connected to the upper end of the pulley block, a base connected to the upper end of the support frame, a fixed column connected to the upper end of the base, a rotating column rotatably connected to the fixed column, a working platform connected to the upper end of the rotating column, a cantilever connected to the upper end of the working platform, a hook connected to the cantilever, a vertical column at the upper end of the working platform, a support plate connected to the vertical column, a cable assembly at the upper end of the support plate, the cable assembly being connected to the hook via a lifting line, the vertical column being connected to the cantilever via an adjustment assembly, and a control room at the upper end of the working platform.
[0005] Preferably, the adjustment assembly includes a first electric push rod and a second electric push rod, with a first sliding block and a second sliding block respectively connected to one end of the first electric push rod and the second electric push rod near the cantilever. A sliding groove is provided on the inner side of the cantilever, and the first sliding block and the second sliding block are slidably connected to the sliding groove.
[0006] Preferably, a staircase is connected to the outside of the support frame.
[0007] Preferably, the upper end of the base is connected to a pneumatic support column and an inclined support column, and the upper ends of the pneumatic support column and the inclined support column are connected to a top plate.
[0008] Preferably, an inspection table is connected to the outer side of the fixed column near the rotating column.
[0009] Preferably, the pulley block is connected to a grounding part.
[0010] Compared with the prior art, this utility model has the following advantages: By setting up a fixed column and a rotating column, the rotating column can rotate 360° around the axis of the fixed column. When the rotating column rotates, it can drive the upper working platform, cantilever, hook and other components to rotate. At the same time, the extension and retraction of the first and second electric push rods can be controlled through the control room. When the electric push rod extends, it pushes the sliding block to move along the slide groove to the far end of the cantilever, causing the cantilever to rotate slightly around the connection point with the working platform, increasing the effective lifting length of the cantilever. When the electric push rod retracts, the sliding block moves to the near end of the cantilever, reducing the effective length of the cantilever, and thus adjusting the horizontal distance of the hook, thereby achieving coverage of the circular working area centered on the gantry crane, greatly improving work efficiency. At the same time, by setting up a roller group, the entire device can be moved quickly and the pressure at the upper end can also be distributed. By setting up pneumatic support columns and inclined support columns to form a double-layer support system, the pneumatic support columns can balance the load through air pressure adjustment, while the inclined support columns enhance the lateral anti-tipping capacity by utilizing the triangular force principle. Together, they provide stable support for the upper working structure, effectively dispersing the load brought by the weight of the goods, thereby ensuring the safety and reliability of the device during the transportation of goods. Attached Figure Description
[0011] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; The reference numerals in the accompanying drawings include: pulley block 1, bracket 2, stairs 3, base 4, fixed column 5, pneumatic support column 6, inclined support column 7, top plate 8, working platform 9, control room 10, rotating column 11, cantilever 12, column 13, first electric push rod 14, first sliding block 15, second electric push rod 16, second sliding block 17, slide 18, hook 19, line group 20, support plate 21, lifting line 22, inspection table 23, grounding part 24. Detailed Implementation
[0012] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0014] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0015] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0016] like Figure 1-2The present invention relates to a port cargo gantry crane, comprising a pulley block 1, a support 2 connected to the upper end of the pulley block 1, a base 4 connected to the upper end of the support 2, a fixed pile 5 connected to the upper end of the base 4, a rotating column 11 rotatably connected to the fixed pile 5, a working platform 9 connected to the upper end of the rotating column 11, a cantilever 12 connected to the upper end of the working platform 9, a hook 19 connected to the cantilever 12, a column 13 provided at the upper end of the working platform 9, a support plate 21 connected to the column 13, a cable assembly 20 provided at the upper end of the support plate 21, the cable assembly 20 being connected to the hook 19 via a lifting line 22, the column 13 being connected to the cantilever 12 via an adjusting assembly, a control room 10 provided at the upper end of the working platform 9, the adjusting assembly including a first electric push rod 14 and a second electric push rod 16, the ends of the first electric push rod 14 and the second electric push rod 16 near the cantilever 12 being respectively connected to a first sliding block 15 and a second sliding block 16. The movable block 17 and the inner side of the cantilever 12 are provided with a sliding groove 18. The first sliding block 15 and the second sliding block 17 are slidably connected to the sliding groove 18. The staff in the control room 10 can control the first electric push rod 14 and the second electric push rod 16 to adjust the length of the cantilever 12, thereby adjusting the hook 19. The support 2 is connected to the outside of the stairs 3. The upper end of the base 4 is connected to the pneumatic support column 6 and the inclined support column 7. The upper ends of the pneumatic support column 6 and the inclined support column 7 are connected to the top plate 8. The upper end of the top plate 8 is rotatably connected to the working platform 9. The rotating column 11 passes through the top plate 8 and is rotatably connected to the fixed pile 5. The outer side of the fixed pile 5 near the rotating column 11 is connected to the inspection table 23. The inspection table 23 is used to periodically check the rotating connection position. The pulley group 1 is connected to the grounding part 24. The grounding part 24 is used to transmit the force of the entire device to the ground.
[0017] Working principle: The bottom pulley block 1 assists the gantry crane in moving horizontally within the work area. On the other hand, the grounding part 24 connects to the ground to evenly transfer the weight of the entire device and the weight of the goods to the ground, avoiding excessive local stress that could lead to ground subsidence or device tilting. The bracket 2 connected to the upper end of the pulley block 1 provides basic vertical support for the gantry crane. The stairs 3 on the outside of the bracket 2 provide access for staff to inspect and move up and down the device, ensuring convenient operation and maintenance. The pneumatic support column 6 set at the upper end of the base 4 can be adjusted by air pressure to adapt to minor unevenness in different work scenarios, ensuring support stability. The inclined support column 7 enhances the lateral anti-tipping ability through the triangular force principle, ensuring that the upper top plate 8 can maintain stability after being subjected to the pressure of the work platform 9. The lower end of the fixed pile 5 is rigidly connected to the base 4, and the upper end is connected to the rotating column 11 through a rotating bearing, so that the rotating column 11 can rotate 360° around the axis of the fixed pile 5. When the rotating column 11 rotates, it can synchronously drive the upper working components such as the working platform 9, cantilever 12, and hook 19 to rotate, thereby adjusting the horizontal position of the hook 19 and covering a larger working range. At the same time, the inspection platform 23 set on the outer side of the fixed pile 5 near the rotating column 11 can provide an operating platform for workers to regularly check the lubrication status and wear of the rotating bearing, ensuring the long-term stable operation of the rotating structure. The column 13 on the working platform 9 is connected to a support plate 21, which provides support for the upper wire assembly 20. The control room 10 adjusts the motor of the wire assembly 20 to control the winding drum of the wire assembly 20, thereby adjusting the winding or unwinding of the lifting line 22. The hook 19 connected to the lower end of the lifting line 22 rises or falls accordingly, realizing the lifting and lowering of goods. The operator in the control room 10 controls the extension and retraction of the first electric push rod 14 and the second electric push rod 16. When the electric push rod extends, it pushes the sliding block to move along the slide groove 18 to the far end of the cantilever 12, causing the cantilever 12 to rotate slightly around the connection point with the working platform 9, increasing the effective lifting length of the cantilever 12. When the electric push rod retracts, the sliding block moves to the near end of the cantilever 12, reducing the effective length of the cantilever 12, thereby adjusting the horizontal distance of the hook 19.
[0018] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.
Claims
1. A gantry crane for port cargo handling, characterized in that: The system includes a pulley block (1), a bracket (2) connected to the upper end of the pulley block (1), a base (4) connected to the upper end of the bracket (2), a fixed column (5) connected to the upper end of the base (4), a rotating column (11) rotatably connected to the fixed column (5), a working platform (9) connected to the upper end of the rotating column (11), a cantilever (12) connected to the upper end of the working platform (9), a hook (19) connected to the cantilever (12), a column (13) provided at the upper end of the working platform (9), a support plate (21) connected to the column (13), a line group (20) provided at the upper end of the support plate (21), the line group (20) connected to the hook (19) through a lifting line (22), the column (13) connected to the cantilever (12) through an adjustment component, and a control room (10) provided at the upper end of the working platform (9).
2. A gantry crane for port cargo handling as described in claim 1, characterized in that: The adjustment assembly includes a first electric push rod (14) and a second electric push rod (16). The first electric push rod (14) and the second electric push rod (16) are respectively connected to a first sliding block (15) and a second sliding block (17) at one end near the cantilever (12). The inner side of the cantilever (12) is provided with a sliding groove (18). The first sliding block (15) and the second sliding block (17) are both slidably connected to the sliding groove (18).
3. A gantry crane for port cargo handling as described in claim 1, characterized in that: The support (2) is connected to a staircase (3) on the outside.
4. A gantry crane for port cargo handling as described in claim 1, characterized in that: The upper end of the base (4) is connected to a pneumatic support column (6) and an inclined support column (7), and the upper ends of the pneumatic support column (6) and the inclined support column (7) are connected to a top plate (8).
5. A gantry crane for port cargo handling as described in claim 1, characterized in that: An inspection table (23) is connected to the outer side of the fixed column (5) near the rotating column (11).
6. A gantry crane for port cargo handling as described in claim 1, characterized in that: The pulley block (1) is connected to a grounding part (24).