Gantry door frame with low wind resistance uprights

Abstract

The utility model provides a shore based crane door frame with low wind resistance stand, including a plurality of door frame stand, at least one area of door frame stand's section is fixed shape and size, the shape of section is hexagon box structure, the hexagon box structure is connected by two upper flange plates, left web, right web and two lower flange plates and forms, the two upper flange plates between bending form herringbone, two the lower flange plate between bending form herringbone, left web and right web are connected upper flange plate and lower flange plate respectively. f , can reduce the influence of wind load to structure, thereby reducing shore based crane weight, reduce shore based crane manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of quay cranes, and in particular to a quay crane portal frame with low wind resistance columns. Background Technology

[0002] In existing technology, quay cranes generally refer to container cranes used for loading and unloading containers from container ships at the quayside. Quay cranes are typically located in coastal or riverside ports, where the environment is generally susceptible to extreme weather events such as storms and typhoons. Therefore, the design of quay cranes requires additional consideration of the impact of wind on the structure. Generally, the weight of the quay crane needs to be increased to balance its stability under storm conditions, which necessitates the selection of larger mechanisms to drive the quay crane, increasing its manufacturing cost.

[0003] Specifically, the formula for calculating wind load is: F = A × q × C f Where A represents the effective windward area of ​​the structure, q represents the wind pressure, and C... f This indicates the wind force coefficient of the structural part along the wind direction.

[0004] In the above formulas, wind pressure q is generally based on the corresponding wind speed and cannot be adjusted. Effective windward area A is generally determined by structural stress and is also difficult to adjust. Therefore, the wind force coefficient C... f These are important influencing factors. The cross-section of a conventional gantry crane frame is a rectangular box girder (…). Figure 1 and Figure 2 As shown in the figure, its wind force coefficient is generally around 1.4.

[0005] In view of this, the inventors of this application have designed a gantry frame for a quay bridge with low wind resistance columns in order to overcome the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects of the existing quay crane portal frame being greatly affected by wind force, and to overcome the influence of wind force, the manufacturing cost is increased. The present invention provides a quay crane portal frame with low wind resistance columns.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A quay crane portal frame with low wind resistance columns is characterized in that the quay crane portal frame includes a plurality of portal frame columns, and at least one region of the portal frame column has a fixed shape and size in cross section, the shape of which is a hexagonal box structure.

[0009] The hexagonal box structure is formed by connecting two upper flanges, a left web, a right web, and two lower flanges. The two upper flanges are bent to form a herringbone shape, and the two lower flanges are bent to form a herringbone shape. The left web and the right web are respectively connected to the upper flanges and the lower flanges.

[0010] According to one embodiment of the present invention, the bending angle between the upper flange plates is 110 degrees to 130 degrees.

[0011] According to one embodiment of the present invention, the bending angle between the lower flange plates is 110 degrees to 130 degrees.

[0012] According to one embodiment of the present invention, the left web plate and the right web plate are arranged parallel to each other and are respectively welded to the upper flange plate and the lower flange plate.

[0013] According to one embodiment of the present invention, the hexagonal box structure further includes a box partition, which is fixed together with the upper flange, the right web, the lower flange and the left web to form a hexagonal cross section.

[0014] According to one embodiment of the present invention, the box partition is welded and fixed to the upper flange plate, the right web plate, the lower flange plate and the left web plate.

[0015] According to one embodiment of the present invention, the hexagonal box structure further includes a plurality of first angle steels, which are installed and fixed on the box partition.

[0016] According to one embodiment of the present invention, the box partition is provided with a plurality of angle steel through holes, and the first angle steel passes through the angle steel through holes and is welded to the left web plate and the right web plate.

[0017] According to one embodiment of the present invention, the hexagonal box structure further includes at least one second angle steel, which is fixed at the bending line between the lower flange plates, or the second angle steel is fixed at the bending line between the upper flange plates.

[0018] According to one embodiment of the present invention, the two ends of the second angle steel are welded to the box body partition.

[0019] The positive and progressive effects of this utility model are as follows:

[0020] This utility model features a quay crane portal frame with low wind resistance columns. By changing the cross-sectional shape of the portal frame, the wind force coefficient C is reduced. f This can reduce the impact of wind load on the structure, thereby reducing the weight of the quay crane and lowering its manufacturing cost. Attached Figure Description

[0021] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a gantry crane in the prior art.

[0023] Figure 2 for Figure 1 A sectional view taken along line AA.

[0024] Figure 3 This is a front view of the gantry frame of the quay crane with low wind resistance columns according to this utility model.

[0025] Figure 4 This is a left view of the gantry frame of the quay crane with low wind resistance columns according to this utility model.

[0026] Figure 5 This is a right view of the gantry frame of the quay crane with low wind resistance columns according to this utility model.

[0027] Figure 6 for Figure 3 A sectional view taken along the CC line. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts.

[0030] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the applicant in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.

[0031] Furthermore, it is required that this utility model be understood not only through the actual terminology used, but also through the meaning implied by each term.

[0032] like Figures 3 to 6As shown, this utility model discloses a quay bridge portal frame with low wind resistance columns, including multiple portal frame columns 10. At least one region of the portal frame column 10 has a fixed cross-section with a fixed shape and size (i.e., a region where the column cross-section remains unchanged), and the cross-section is a hexagonal box structure. The hexagonal box structure is formed by connecting two upper flange plates 11, a left web plate 12, a right web plate 13, and two lower flange plates 14. The two upper flange plates 11 are bent together to form a herringbone shape, and the two lower flange plates 14 are bent together to form a herringbone shape. The left web plate 12 and the right web plate 13 are respectively connected to the upper flange plate 11 and the lower flange plate 14.

[0033] Preferably, the bending angle between the upper flange plates 11 is between 110 and 130 degrees. The bending angle between the lower flange plates 14 is also preferably between 110 and 130 degrees. The left web plate 12 and the right web plate 13 are arranged parallel to each other and are welded to the upper flange plate 11 and the lower flange plate 14, respectively.

[0034] Furthermore, the hexagonal box structure also includes box partitions 15, which are fixed together with the upper flange plate 11, right web plate 13, lower flange plate 14, and left web plate 12 to form a hexagonal cross-section. The box partitions 15 are preferably arranged along the length of the column and spaced at certain intervals. For example, the box partitions 15 are fixed to the upper flange plate 11, right web plate 13, lower flange plate 14, and left web plate 12 by welding.

[0035] Preferably, reinforcing ribs are welded to the bending areas between the upper flange plates 11, with both ends of the reinforcing ribs welded to the housing partition plate 15. Similarly, reinforcing ribs are welded to the bending areas between the lower flange plates 14, with both ends of the reinforcing ribs welded to the housing partition plate 15.

[0036] In addition, the hexagonal box structure also includes a plurality of first angle steels 20, which are installed and fixed on the box partition 15. For example, a plurality of angle steel through holes are provided on the box partition 15, and the first angle steels 20 pass through the angle steel through holes and are welded to the left web plate 12 and the right web plate 13.

[0037] Furthermore, the hexagonal box structure also includes at least one second angle steel 30, which is fixed at the bending line between the lower flange plates 14, or at the bending line between the upper flange plates 11. The two ends of the second angle steel 30 are welded to the box partition plate 15.

[0038] Based on the above structural description, this utility model features a quay crane portal frame with low wind resistance columns, employing columns with hexagonal cross-sections to reduce the wind force coefficient in that direction. Finite element analysis shows its wind force coefficient to be 1.03, a reduction of approximately 27% compared to conventional cross-sections.

[0039] In summary, this utility model features a quay crane portal frame with low wind resistance columns. By changing the cross-sectional shape of the portal frame, the wind force coefficient C is reduced. f This can reduce the impact of wind load on the structure, thereby reducing the weight of the quay crane and lowering its manufacturing cost.

[0040] For those skilled in the art, the above disclosure of utility models is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0041] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0042] Similarly, it should be noted that, in order to simplify the description of the embodiments disclosed in this application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of this application sometimes combines multiple features into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the object of this application requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of the single embodiments disclosed above. Some embodiments use numbers describing the number of components or attributes; it should be understood that such numbers used in the description of embodiments are modified in some examples by the modifiers "approximately," "about," or "generally."

[0043] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gantry frame for a quay crane with low wind resistance columns, characterized in that, The quay crane portal frame includes multiple portal frame columns, and at least one region of the portal frame column has a fixed shape and size in cross-section, the shape of which is a hexagonal box structure; The hexagonal box structure is formed by connecting two upper flanges, a left web, a right web, and two lower flanges. The two upper flanges are bent to form a herringbone shape, and the two lower flanges are bent to form a herringbone shape. The left web and the right web are respectively connected to the upper flanges and the lower flanges.

2. The quay crane portal frame with low wind resistance columns as described in claim 1, characterized in that, The bending angle between the upper flange plates is 110 degrees to 130 degrees.

3. The quay crane portal frame with low wind resistance columns as described in claim 1, characterized in that, The bending angle between the lower flange plates is 110 degrees to 130 degrees.

4. The quay crane portal frame with low wind resistance columns as described in claim 1, characterized in that, The left web and the right web are arranged parallel to each other and are welded to the upper flange and the lower flange, respectively.

5. The quay crane portal frame with low wind resistance columns as described in claim 1, characterized in that, The hexagonal box structure also includes a box partition, which is fixed together with the upper flange, the right web, the lower flange and the left web to form a hexagonal cross section.

6. The quay crane portal frame with low wind resistance columns as described in claim 5, characterized in that, The box body partition is welded and fixed to the upper flange, the right web, the lower flange, and the left web.

7. The quay crane portal frame with low wind resistance columns as described in claim 5, characterized in that, The hexagonal box structure also includes a plurality of first angle steels, which are installed and fixed on the box partition.

8. The quay crane portal frame with low wind resistance columns as described in claim 7, characterized in that, The box body partition has multiple angle steel through holes, and the first angle steel passes through the angle steel through holes and is welded to the left web plate and the right web plate.

9. The quay crane portal frame with low wind resistance columns as described in claim 5, characterized in that, The hexagonal box structure also includes at least one second angle steel, which is fixed at the bend line between the lower flange plates, or the second angle steel is fixed at the bend line between the upper flange plates.

10. The quay crane portal frame with low wind resistance columns as described in claim 9, characterized in that, The two ends of the second angle steel are welded to the box body partition.

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