Cantilever beam connection reinforcing device based on flange structure optimization

Abstract

The utility model discloses a cantilever beam connecting and reinforcing device based on flange structure optimization, which relates to the technical field of flange structure optimization and comprises a cantilever beam pipe and limiting discs fixedly connected to two ends of the cantilever beam pipe, two flanges are welded on the outer wall of the cantilever beam pipe, and a plurality of first threaded holes are formed in the flanges at equal intervals. Five rib plates are welded to the side walls of the outer rings of the two flanges at equal intervals, and second threaded holes are formed in the rib plates. By means of the arrangement of the rib plates, loads can be effectively dispersed, and local stress of the flanges is reduced; through the arrangement of the bolt protection sleeve, the bolt can be effectively isolated from the external environment, and performance reduction caused by corrosion and abrasion of the bolt is reduced; through the arrangement of the anti-skid teeth, the anti-loosening performance of the nut can be remarkably improved, the fastening performance of bolt connection is ensured, the stability of the connection part can be kept even under the action of a severe environment and a complex load, and the problems that a traditional nut is poor in anti-skid effect and prone to loosening in a vibration environment, and consequently connection of a cantilever beam fails are solved.

Description

Technical Field

[0001] This utility model relates to the field of flange structure optimization technology, and in particular to a cantilever beam connection reinforcement device based on flange structure optimization. Background Technology

[0002] In the field of mechanical engineering, cantilever beams are common load-bearing components, and the stability of their connection parts is crucial to the overall structural safety. The ordinary nuts used in traditional cantilever beam connections have many insurmountable technical problems in practical applications, especially in terms of anti-slip performance, which seriously affects the reliability of cantilever beam structures.

[0003] The existing patent publication number is CN105370674A, entitled "A Cantilever Flange Connection Device," which includes a cantilever flange joint and a fixed flange joint. The cantilever flange joint is provided with an alignment member that ensures the central axes of the cantilever flange joint and the fixed flange joint coincide. The cantilever flange joint is detachably connected to the fixed flange joint via a locking mechanism. In use, the device of this invention ensures the central axes of the cantilever flange joint and the fixed flange joint coincide via the alignment member, guaranteeing accurate positioning and coaxiality. The locking mechanism secures the cantilever flange joint and the fixed flange joint, thereby accurately defining the relative position between the cantilever and fixed components.

[0004] However, the nuts in the above solution still use a smooth surface design, and the fastening between them and the connected parts relies solely on the friction of the threads. In the actual operation of cantilever beams, due to the complex and varied loads they bear, vibrations and impacts in different directions will occur. For example, in the cantilever beam structure of a crane, when lifting heavy objects or performing slewing operations, the cantilever beam will be subjected to periodic vibrations and inertial forces. Under such vibration conditions, the friction between the threads of ordinary nuts is insufficient to resist the loosening tendency caused by vibration. The nuts are prone to slow rotation and gradual loosening, resulting in a decrease in the tightness of the connection. Therefore, the above problems need to be solved. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cantilever beam connection reinforcement device based on flange structure optimization.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cantilever beam connection reinforcement device based on flange structure optimization, comprising a cantilever beam pipe and a limiting plate fixed to both ends of the cantilever beam pipe. Two flanges are welded on the outer wall of the cantilever beam pipe, and multiple first threaded holes are equally spaced on the flanges. Five stiffening plates are equally spaced on the outer ring sidewalls of the two flanges, and second threaded holes are opened on the stiffening plates.

[0007] Preferably, a first bolt for fixing is inserted between the two flanges, one end of the first bolt is provided with a first gasket at the connection point with one flange, and the other end of the first bolt is threaded with a first anti-slip nut, which abuts against the other flange.

[0008] Preferably, a second bolt is vertically inserted between the two stiffeners, a second washer is provided at the connection point between one end of the second bolt and one stiffener, and a second anti-slip nut is threaded to the other end of the second bolt, the second anti-slip nut abutting against the other stiffener.

[0009] Preferably, one end of the first anti-slip nut and the second anti-slip nut is fixed with anti-slip teeth, the anti-slip teeth are made of rubber, and the anti-slip teeth are processed on the side wall of the anti-slip nut using a knurling process.

[0010] Preferably, bolt protective sleeves are screwed onto the first bolt and the second bolt, and the bolt protective sleeves are respectively inserted into the first threaded hole and the second threaded hole, and the bolt protective sleeves are made of plastic.

[0011] Preferably, the flange is forged from high-strength alloy steel through a heat treatment process.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the flange and the stiffening plate can effectively distribute the load, reduce the local stress on the flange, enhance the synergistic effect between the flanges, and improve the rigidity and stability of the entire connection, making the cantilever beam less prone to deformation when subjected to complex loads; the cooperation between the bolt and the bolt protective sleeve can effectively isolate the bolt from the external environment and reduce the performance degradation of the bolt due to corrosion and wear; the anti-slip teeth can significantly improve the anti-loosening performance of the nut, ensure the tightness of the bolt connection, and maintain the stability of the connection even under harsh environments and complex loads, solving the problems of poor anti-slip effect of traditional nuts, easy loosening in vibration environments, and failure of cantilever beam connections. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model;

[0016] Figure 3This is a schematic diagram of the flange structure proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of some parts proposed in this utility model.

[0018] The numbers in the diagram are: 1. Flange; 2. Rib plate; 3. First bolt; 4. First gasket; 5. Second bolt; 6. Second gasket; 7. Limiting plate; 8. First anti-slip nut; 9. Second anti-slip nut; 10. Second threaded hole; 11. First threaded hole; 12. Bolt protective sleeve; 13. Anti-slip teeth. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example: See Figure 1-4 This utility model discloses a cantilever beam connection reinforcement device based on flange structure optimization, comprising a cantilever beam tube and limiting discs 7 fixed to both ends of the cantilever beam tube. Two flanges 1 are welded to the outer wall of the cantilever beam tube, which facilitates bearing larger loads and enhances the stability of the entire cantilever beam connection reinforcement device. Multiple first threaded holes 11 are equally spaced on the flanges 1, which facilitate the installation and positioning of the first bolts 3, ensuring the accuracy and tightness of the flange 1 connection. Five stiffening plates 2 are equally spaced welded to the outer sidewalls of both flanges 1, which facilitate the mesh reinforcement structure, effectively disperse the load, and reduce the local stress on the flanges 1. Second threaded holes 10 are opened on the stiffening plates 2, which facilitate the accuracy and reliability of the connection between the stiffening plates 2, enabling the stiffening plates 2 to cooperate in bearing the force.

[0021] In this utility model, a first bolt 3 for fixing is inserted between two flanges 1. A first gasket 4 is provided at one end of the first bolt 3 where it connects to one flange 1, and a first anti-slip nut 8 is threaded to the other end of the first bolt 3. The first anti-slip nut 8 abuts against the other flange 1. The first bolt 3 provides a strong tightening force, ensuring a tight connection between the flanges 1 and preventing loosening during use. A second bolt 5 is vertically inserted between two stiffening plates 2. A second gasket 6 is provided at one end of the second bolt 5 where it connects to one stiffening plate 2, and a second anti-slip nut 9 is threaded to the other end of the second bolt 5. The second anti-slip nut 9 abuts against the other stiffening plate 2. The second anti-slip nut 9 prevents the second bolt 5 from loosening, ensuring a firm connection between the stiffening plates 2 and strengthening the structure of the flanges 1. The stability of the first anti-slip nut 8 and the second anti-slip nut 9 is ensured by anti-slip teeth 13 fixed to one end. The anti-slip teeth 13 are made of rubber and are knurled on the side wall of the anti-slip nut. The anti-slip teeth 13 significantly improve the anti-loosening performance of the nut and ensure the tightness of the bolt connection. Even under harsh environments and complex loads, the connection can remain stable. The first bolt 3 and the second bolt 5 are screwed together with bolt protective sleeves 12. The bolt protective sleeves 12 are respectively inserted into the first threaded hole 11 and the second threaded hole 10. The bolt protective sleeves 12 are made of plastic. The bolt protective sleeves 12 effectively isolate the bolt from the external environment and reduce the performance degradation of the bolt due to corrosion and wear. The flange 1 is forged from high-strength alloy steel through a heat treatment process.

[0022] Working Principle: In the application of this utility model, during installation, two flanges 1 are first welded to the outer wall of the cantilever beam pipe. Using the first threaded hole 11 on flange 1, a first bolt 3 is passed through the hole. With the cooperation of the first gasket 4 and the first anti-slip nut 8, the two flanges 1 are tightly connected together. The first gasket 4 increases the contact area between the bolt and flange 1, evenly distributing the tightening force and simultaneously providing a seal. The anti-slip teeth 13 at one end of the first anti-slip nut 8 fit tightly against the surface of flange 1, increasing friction and preventing the first bolt from slipping. Bolt 3 loosens. Next, for the stiffening plate 2 welded to the outer ring sidewall of flange 1, the second bolt 5 is vertically inserted through the second threaded hole 10, and in conjunction with the second washer 6 and the second anti-slip nut 9, adjacent stiffening plates 2 are connected. The functions of the second washer 6 and the second anti-slip nut 9 are similar to those of the first washer 4 and the first anti-slip nut 8, respectively protecting the surface of the stiffening plate 2, enhancing the connection seal, and preventing the second bolt 5 from loosening. Finally, the limiting plate 7 is fixed to both ends of the cantilever beam tube to restrict the cantilever beam tube in the connection direction. The upward displacement ensures accurate installation. When the cantilever beam is under load, flange 1, as the core connecting component, possesses excellent mechanical properties due to its high-strength alloy steel material and heat treatment process, enabling it to withstand significant pressure and tension. The first bolt 3 tightly engages with the first threaded hole 11, transferring the load to flange 1. Simultaneously, the first anti-slip nut 8 and anti-slip teeth 13 ensure the tightness of the connection, preventing flange 1 from loosening. The stiffening plate 2 and flange 1 together form a reinforcement structure, sharing the load on flange 1. The second bolt 5 connects adjacent stiffening plates 2 through the second threaded hole 10, forming a mesh reinforcement structure that effectively disperses the load and reduces local stress on flange 1. When the cantilever beam is subjected to complex loads such as bending and torsion, the stiffening plates 2 work together to enhance the connection strength and integrity between flanges 1, improving the rigidity and stability of the cantilever beam connection, making the cantilever beam less prone to deformation under complex loads, and ensuring the safety and reliability of the entire structure. This concludes the use of the cantilever beam connection reinforcement device based on flange structure optimization.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cantilever beam connection reinforcement device based on flange structure optimization, comprising a cantilever beam tube and limiting discs (7) fixed to both ends of the cantilever beam tube, characterized in that: Two flanges (1) are welded on the outer wall of the cantilever beam pipe. Multiple first threaded holes (11) are equally spaced on the flanges (1). Five stiffening plates (2) are equally spaced on the outer ring sidewalls of the two flanges (1). Second threaded holes (10) are opened on the stiffening plates (2).

2. The cantilever beam connection reinforcement device based on flange structure optimization according to claim 1, characterized in that: A first bolt (3) for fixing is inserted between the two flanges (1). A first gasket (4) is provided at one end of the first bolt (3) where it is connected to one flange (1). A first anti-slip nut (8) is threaded to the other end of the first bolt (3). The first anti-slip nut (8) abuts against the other flange (1).

3. The cantilever beam connection reinforcement device based on flange structure optimization according to claim 1, characterized in that: A second bolt (5) is vertically inserted between the two stiffeners (2). A second washer (6) is provided at the connection point between one end of the second bolt (5) and one stiffener (2). A second anti-slip nut (9) is threaded to the other end of the second bolt (5). The second anti-slip nut (9) abuts against the other stiffener (2).

4. The cantilever beam connection reinforcement device based on flange structure optimization according to claim 2, characterized in that: The first anti-slip nut (8) and the second anti-slip nut (9) are fixedly connected to one end with anti-slip teeth (13). The anti-slip teeth (13) are made of rubber and are knurled on the side wall of the anti-slip nut.

5. The cantilever beam connection reinforcement device based on flange structure optimization according to claim 2, characterized in that: Bolt protective sleeves (12) are screwed onto the first bolt (3) and the second bolt (5). The bolt protective sleeves (12) are respectively inserted into the first threaded hole (11) and the second threaded hole (10). The bolt protective sleeves (12) are made of plastic.

6. The cantilever beam connection reinforcement device based on flange structure optimization according to claim 1, characterized in that: The flange (1) is forged from high-strength alloy steel through a heat treatment process.

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