Crane beam body connecting structure

Abstract

The utility model discloses a crane beam body connecting structure which comprises a box-shaped beam body structure and a beam body structure, wherein the box-shaped beam body structure is positioned at an end beam connecting end and a main beam connecting end; the box-shaped beam body structure comprises a first cover plate structure and a second cover plate structure which are oppositely arranged; the first web plate structure is connected with the first cover plate structure and the second cover plate structure; the second web plate structure is connected with the first cover plate structure and the second cover plate structure; the first web structure and the second web structure are oppositely arranged; the flange structure is used for being connected with the end part of the inner side of the box-shaped beam body structure; and the connecting bolt hole is formed in the flange structure. According to the technical scheme provided by the utility model, an operator can mount a flange connecting bolt in the beam body at the flange position of the main beam, so that the safety risk is greatly reduced, and the mounting efficiency of the crane is improved; in addition, due to the fact that the flange is connected with the bolt hole in the cavity side of the beam body, the boundary dimension of the flange is reduced, and the overall cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and more specifically, to a crane beam connection structure. Background Technology

[0002] Currently, the main beam and end beam connection structure of gantry cranes is a box-shaped structure composed of cover plates and web plates, which is connected to flanges at the ends. Stiffeners are provided between the cover plates, web plates and flanges. The characteristic feature is that the connecting bolt holes on the flanges are located on the outside of the box-shaped beam body composed of cover plates and web plates. During crane installation, the main beam is assembled first, followed by the assembly of the end beams. Especially when the crane uses a single main beam for hoisting and assembly, the flanges connecting the main and end beams are often tens of meters above the ground. The main problems with this connection structure are: operators must use mobile cranes (like truck cranes) to install bolts in the flange holes of the main and end beams at high altitudes to connect them. Because of the high altitude and the need to apply torque during bolt installation, installation is difficult, inefficient, and poses significant safety hazards. Furthermore, the current structure allows rainwater to easily seep into the beam from between the flanges, causing corrosion of the bolts or beam, affecting the beam's lifespan and operational safety. Also, the bolts located on the sides and bottom of the flanges are difficult to inspect during use, increasing safety risks and manufacturing costs.

[0003] Therefore, how to provide a crane beam connection structure that facilitates the installation and connection of the crane beam, reduces the safety risks for installers, facilitates daily inspection and maintenance of the beam connection bolts, and reduces manufacturing costs has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a crane beam connection structure, which facilitates the installation and connection of the beam, reduces the safety risks for installers, facilitates daily inspection and maintenance of bolts, and saves manufacturing costs.

[0005] The technical solution provided by this utility model is as follows:

[0006] This utility model provides a crane beam connection structure, including: a box-shaped beam structure located at the end beam connection end and the main beam connection end;

[0007] The box girder structure includes: a first cover plate structure and a second cover plate structure arranged opposite to each other;

[0008] A first web structure connecting the first cover plate structure and the second cover plate structure;

[0009] A second web structure connecting the first cover plate structure and the second cover plate structure;

[0010] The first web structure and the second web structure are arranged opposite to each other;

[0011] Flange structure for connection to the inner end of the box girder structure;

[0012] The connecting bolt holes are provided on the flange structure.

[0013] Furthermore, in a preferred embodiment of this utility model, it further includes: a first stiffening plate structure disposed between the first cover plate structure, the flange structure, and the second cover plate structure and the flange structure.

[0014] Furthermore, in a preferred embodiment of this utility model, it further includes a second stiffening plate structure disposed between the first web structure, the flange structure, and the second web structure and the flange structure.

[0015] Furthermore, in a preferred embodiment of this utility model, it further includes: a protective cover structure disposed at the end beam connection end and the main beam connection end; the protective cover structure is used to cover the flange structure located at the end beam or the main beam connection end.

[0016] Furthermore, in a preferred embodiment of this utility model, the protective cover structure is detachably installed on the outside of the two flange structures at the end beam connection end and the main beam connection end.

[0017] Furthermore, in a preferred embodiment of this invention, the connecting bolt holes are evenly distributed circumferentially along the flange structure.

[0018] Furthermore, in a preferred embodiment of the present invention, the protective cover structure includes: a first half-cover and a second half-cover symmetrically arranged; the mating edges of the first half-cover and the second half-cover are provided with mutually cooperating snap-fit ​​flanges; and the top of the protective cover structure is provided with a quick-release buckle locking mechanism.

[0019] This utility model provides a crane beam connection structure, comprising: a box-shaped beam structure located at the end beam connection end and the main beam connection end; the box-shaped beam structure includes: a first cover plate structure and a second cover plate structure disposed opposite to each other; a first web plate structure connecting the first cover plate structure and the second cover plate structure; a second web plate structure connecting the first cover plate structure and the second cover plate structure; the first web plate structure and the second web plate structure are disposed opposite to each other; a flange structure for connecting to the inner end of the box-shaped beam structure; and connecting bolt holes disposed on the flange structure. The technical solution provided by this utility model facilitates the installation and connection of the crane beam and reduces the safety risks for installation personnel, while also facilitating daily inspection and maintenance of the beam connection bolts and reducing manufacturing costs. During crane installation, once the main beam assembly is complete, operators can install flange connection bolts inside the beam at the flange location on the main beam. This eliminates the need for mobile lifting equipment to work in the air, significantly reducing safety risks and facilitating beam connection construction, thus improving crane installation efficiency. Because the flange connection bolts are located on the side of the beam cavity, routine inspection and maintenance of the bolts are very convenient and can be completed inside the beam without any auxiliary lifting equipment. With the flange connection bolt holes on the side of the beam cavity, the flange dimensions are smaller, the weight is reduced, and the cost is more economical. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the crane beam connection structure provided in an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the main structure of the crane beam connection structure provided in this embodiment of the utility model;

[0023] Figure 3 A lateral structural schematic diagram of the crane beam connection structure provided in this embodiment of the utility model;

[0024] Figure 4 This is a structural diagram of a crane beam connection structure in the prior art;

[0025] Figure 5 This is a schematic diagram of the main structure of a crane beam connection structure in the prior art. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0031] like Figures 1 to 5As shown, the crane beam connection structure provided in this embodiment includes: a box-shaped beam structure 3 located at the end beam connection end 1 and the main beam connection end 2; the box-shaped beam structure 3 includes: a first cover plate structure 301 and a second cover plate structure 302 arranged opposite to each other; a first web plate structure 303 connecting the first cover plate structure 301 and the second cover plate structure 302; a second web plate structure 304 connecting the first cover plate structure 301 and the second cover plate structure 302; the first web plate structure 303 and the second web plate structure 304 are arranged opposite to each other; a flange structure 4 for connecting to the inner end of the box-shaped beam structure 3; and connecting bolt holes 5 provided on the flange structure 4. The technical solution provided by this utility model can facilitate the installation and connection of the crane beam and reduce the safety risks of installation personnel, while also facilitating the daily inspection and maintenance of the beam connection bolts and reducing manufacturing costs. During crane installation, once the main beam assembly is complete, operators can install flange connection bolts inside the beam at the flange location on the main beam. This eliminates the need for mobile lifting equipment to work in the air, significantly reducing safety risks and facilitating beam connection construction, thus improving crane installation efficiency. Because the flange connection bolts are located on the side of the beam cavity, routine inspection and maintenance of the bolts are very convenient and can be completed inside the beam without any auxiliary lifting equipment. With the flange connection bolt holes on the side of the beam cavity, the flange dimensions are smaller, the weight is reduced, and the cost is more economical.

[0032] The technical solution of this utility model will be specifically described below with reference to the embodiments:

[0033] Specifically, in an embodiment of this utility model, a box-shaped beam structure 3 is located at the end beam connection end 1 and the main beam connection end 2; the box-shaped beam structure 3 includes: a first cover plate structure 301 and a second cover plate structure 302 arranged opposite to each other; a first web structure 303 connecting the first cover plate structure 301 and the second cover plate structure 302; a second web structure 304 connecting the first cover plate structure 301 and the second cover plate structure 302; the first web structure 303 and the second web structure 304 are arranged opposite to each other; a flange structure 4 for connecting to the inner end of the box-shaped beam structure 3; and connecting bolt holes 5 provided on the flange structure 4.

[0034] Specifically, in the embodiments of this utility model, it further includes: a first stiffening plate structure 6 disposed between the first cover plate structure 301, the flange structure 4, and the second cover plate structure 302 and the flange structure 4.

[0035] Specifically, in the embodiments of this utility model, it further includes a second stiffening plate structure 7 disposed between the first web structure 303, the flange structure 4, and the second web structure 304 and the flange structure 4.

[0036] In the embodiments of this utility model, the above-mentioned technical structures work together to achieve a lightweight overall structure, reducing redundant materials compared to traditional external flanges, and providing a more direct load transfer path, thus reducing stress concentration.

[0037] Specifically, in the embodiments of this utility model, it further includes: a protective cover structure 8 disposed at the end beam connection end 1 and the main beam connection end 2; the protective cover structure 8 is used to cover the flange structure 4 located at the end beam or the main beam connection end.

[0038] Specifically, in an embodiment of this utility model, the protective cover structure 8 is detachably installed on the outside of the two flange structures 4 at the end beam connection end 1 and the main beam connection end 2.

[0039] Specifically, in the embodiments of this utility model, the connecting bolt holes are evenly distributed along the circumference of the flange structure.

[0040] In the embodiments of this utility model, the flange structure has circumferentially evenly distributed connecting bolt holes, which significantly improves bolt inspection and maintenance. The flange outer diameter is significantly reduced, greatly saving material costs. The protective cover creates a good structural sealing system, significantly improving corrosion resistance.

[0041] Specifically, in an embodiment of this utility model, the protective cover structure 8 includes: a first half-cover and a second half-cover arranged symmetrically; the mating edges of the first half-cover and the second half-cover are provided with mutually cooperating snap-fit ​​flanges; and the top of the protective cover structure 8 is provided with a quick-release buckle locking mechanism.

[0042] In this embodiment, the traditional external connection interface is moved inward to a closed enclosure, using the structural body as the operating space carrier, thus overcoming the spatial limitations of high-altitude operations. An adjustable-compression sealing strip, combined with a quick-release mechanism, achieves adaptive sealing during flange thermal expansion and contraction. The flange connection integrates the cover plate, web plate, and stiffening plate to form a multi-directional stress balance structure. Through systematic structural reconstruction, high-altitude exposed operations are transformed into enclosed space operations, while simultaneously achieving synergistic optimization in mechanical performance, environmental protection, and maintenance convenience.

[0043] More specifically, the current connection structure between the main beam and the end beam of the gantry crane is a box-shaped structure composed of a cover plate and a web plate, which is connected to the flange at the end. There are stiffening plates between the cover plate, the web plate and the flange. The characteristic feature is that the connecting bolt holes on the flange are located on the outside of the box-shaped beam body composed of the cover plate and the web plate. During crane installation, the main beam is assembled on-site first, and then the end beams are assembled with the main beam. Especially when the crane uses a single main beam for hoisting and assembly, the flanges connecting the main beam and end beam are often tens of meters above the ground. The main problems with this connection structure are: operators must use mobile cranes (like truck cranes) to install bolts in the flange holes of the main beam and end beam at high altitude to connect them. Because of the high altitude and the need to apply torque during bolt installation, installation is difficult, inefficient, and poses significant safety hazards. This structure also allows rainwater to easily seep into the beam from between the flanges, causing corrosion of the bolts or beam, affecting the beam's lifespan and safe operation. Because the flange bolts are on the outside, after the crane is installed, the end beam and the connected main beam section are suspended in the air, making it very inconvenient to inspect the bolts located on the side and bottom of the flange, increasing safety risks during crane operation. Furthermore, the existing technology also suffers from the problem of the flange bolts being on the outside, leading to larger flange dimensions, increased weight, and higher manufacturing costs.

[0044] Based on this, the purpose of the present utility model embodiment is to address the shortcomings of the existing connection structure between the main beam and the end beam, and to provide a crane beam connection structure that is easy to install, prevents rainwater from entering the beam, facilitates daily maintenance and inspection, has small flange size and light weight, and is cost-effective.

[0045] The crane beam connection structure of this utility model consists of a box-shaped structure composed of a cover plate and a web plate, which is connected to a flange at the end. Ribs are provided between the cover plate, web plate and flange on the cavity side. Compared with the prior art, the connecting bolt holes on the flange are located on the cavity side of the box-shaped beam composed of the cover plate and web plate. A protective cover for preventing rainwater from entering is also provided on the outside of the two flange connection ends.

[0046] As described above, this utility model has the following beneficial effects: During crane installation, after the main beam assembly is completed, operators can install flange connecting bolts inside the beam at the flange position on the main beam, eliminating the need for aerial work using mobile lifting equipment. This significantly reduces safety risks and facilitates beam connection construction, improving crane installation efficiency. Because the flange connecting bolts are located on the beam cavity side, routine inspection and maintenance of the bolts are very convenient and can be completed inside the beam without any auxiliary lifting equipment. With the flange connecting bolt holes on the beam cavity side, the flange dimensions are smaller, weight is reduced, and costs are more economical. A protective cover is installed at the flange to effectively prevent rainwater from entering the beam body, thus preventing rainwater from corroding the connecting bolts and the beam body, improving the service life of the equipment and ensuring work safety. In summary, this utility model solution solves the problems of high-altitude bolt installation risks, rainwater infiltration and corrosion hazards, difficulties in daily maintenance, and high costs caused by large flange sizes in the connection structure between the main beam and end beam of the crane. By moving the bolt holes to the side of the beam cavity and adding a protective cover, the working space is optimized, rainwater erosion is blocked, and the maintenance process is simplified. At the same time, the flange structure is reduced and the manufacturing cost is lowered. Compared with the existing technology, it has significant technical effects.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane girder connection structure, characterized by, include: The box-shaped beam structure (3) located at the end beam connection end (1) and the main beam connection end (2); The box girder structure (3) includes: a first cover plate structure (301) and a second cover plate structure (302) arranged opposite to each other; A first web structure (303) connecting the first cover plate structure (301) and the second cover plate structure (302); A second web structure (304) connecting the first cover plate structure (301) and the second cover plate structure (302); The first web structure (303) and the second web structure (304) are arranged opposite to each other; Flange structure (4) for connecting to the inner end of the box beam structure (3); The connecting bolt holes (5) are provided on the flange structure (4).

2. The crane beam connection structure according to claim 1, characterized in that, Also includes: A first stiffening plate structure (6) is provided between the first cover plate structure (301), the flange structure (4), the second cover plate structure (302), and the flange structure (4).

3. The crane beam connection structure according to claim 1, characterized in that, Also includes: A second stiffening plate structure (7) is provided between the first web structure (303), the flange structure (4), and the second web structure (304) and the flange structure (4).

4. The crane beam connection structure according to claim 1, characterized in that, Also includes: A protective cover structure (8) is provided at the end beam connection end (1) and the main beam connection end (2); the protective cover structure (8) is used to cover and protect the flange structure (4) located at the end beam or the main beam connection end.

5. The crane beam connection structure according to claim 4, characterized in that, The protective cover structure (8) can be detachably installed on the outside of the two flange structures (4) at the end beam connection end (1) and the main beam connection end (2).

6. The crane beam connection structure according to claim 1, characterized in that, The connecting bolt holes are evenly distributed along the circumference of the flange structure.

7. The crane beam connection structure according to claim 4, characterized in that, The protective cover structure (8) includes: a first half-cover and a second half-cover arranged symmetrically; the mating edges of the first half-cover and the second half-cover are provided with mutually cooperating snap-fit ​​flanges; and the top of the protective cover structure (8) is provided with a quick-release buckle locking mechanism.

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