A steel structure lifting device and lifting method

Abstract

This invention provides a steel structure lifting device and lifting method. The steel structure lifting device includes: a longitudinal vertical fixing plate, a connecting shaft fixedly connected to the side surface of the longitudinal vertical fixing plate, and a rotating wheel rotatably connected to the side surface of the longitudinal vertical fixing plate. A limit device is provided on the outer surface of the rotating wheel. The device utilizes multiple limit devices, pressure detection devices, and auxiliary support devices. These devices help ensure the safety of the lifting process. The limit devices can limit the lifting height and prevent accidents. By rotating the first metal bolt, the contact between the wear-resistant arc-shaped plate and the steel cable can be precisely adjusted, thereby controlling the tension between the hook and the steel structure during lifting, making the lifting more precise. The rotation of the third metal bolt can be used to assist in supporting the steel structure, especially when adjustments or support may be needed during lifting, which increases the flexibility and safety of the lifting process.

Description

Technical Field

[0001] This invention relates to the field of steel structure lifting device technology, specifically to a steel structure lifting device and lifting method. Background Technology

[0002] Steel structure lifting devices are specialized mechanical equipment designed for the installation and lifting of heavy steel structures, widely used in construction, bridge building, and industrial installation. These devices are particularly crucial for completing large-scale construction projects, as they make the handling and positioning of large steel components feasible and safe. Below are some key features and components of steel structure lifting devices: High load capacity: To meet the lifting requirements of large steel structures, these devices typically have very high load capacities. They provide precise control to ensure accurate installation of the steel structure. They include multiple safety mechanisms to prevent accidents and ensure the safety of construction personnel and equipment. They can adapt to different working environments and conditions, including varying heights, angles, and space constraints. They are designed to improve construction efficiency and reduce human resources and time costs. Components: Lifting machinery: Such as tower cranes, crawler cranes, wheeled cranes, etc., used for lifting and moving heavy steel components. Support system: Includes temporary support structures to ensure stability during the lifting process. Control system: May be manual or electronically controlled to guide and control the lifting operation. Safety devices: Such as emergency braking systems, load limiters, and safety monitoring devices to ensure safe operation. Used in the construction of high-rise buildings, stadiums, large exhibition centers, and other structures. Used for installing steel structural components in long-span bridges. Plays a role in the installation of large equipment in industries such as petroleum and chemical manufacturing.

[0003] However, when using current steel structure lifting devices, simple fixing can cause swaying when encountering long-distance lifting, while complex fixing can waste a lot of time during disassembly and fixing, thus affecting the efficiency of the device. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a steel structure lifting device and lifting method, which solves the problem that complex fixing processes lead to a significant waste of time during disassembly and fixing, thereby affecting the efficiency of the device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a steel structure lifting device, comprising:

[0008] A longitudinal vertical fixing plate is provided, with a connecting shaft fixedly connected to its side surface. A rotating wheel is rotatably connected to the side surface of the longitudinal vertical fixing plate. A limiting device is provided on the outer surface of the rotating wheel. The limiting device includes a limiting block, a first metal bolt, a metal fixing plate, a rigid top cover, a pressure detection device, and an elastic roller. A through hole is provided on the upper surface of the limiting block, and the interior of the through hole is slidably connected to a steel cable. The lower surface of the limiting block is fixedly connected to the metal fixing plate. The side surface of the metal fixing plate is fixedly connected to the rigid top cover. The lower surface of the rigid top cover is fixedly connected to the pressure detection device. Both ends of the elastic roller are rotatably connected to the metal fixing plate. The first metal bolt is threadedly connected to the limiting block, and a wear-resistant arc-shaped plate is rotatably connected to one end of the first metal bolt.

[0009] The two ends of the steel cable are fixedly connected to clamping devices. The clamping devices include a metal ball, a transverse fixing shaft, a hook, a horizontal metal plate, a sliding plate, and a third metal bolt. The inner surface of the metal ball is rotatably connected to the transverse fixing shaft, the outer surface of the transverse fixing shaft is fixedly connected to the hook, the right surface of the metal ball is fixedly connected to the horizontal metal plate, the upper surface of the horizontal metal plate is slidably connected to the sliding plate, and the interior of the sliding plate is threadedly connected to the third metal bolt.

[0010] Preferably, the pressure detection device has a battery inside, is electrically connected to a horn, and the upper surface of the elastic roller is in contact with the lower surface of the pressure detection device.

[0011] Preferably, the wear-resistant arc-shaped sheet is in contact with the inner surface of the through hole, and there are two through holes distributed on the left and right.

[0012] Preferably, the third metal bolt extends to the lower side of the sliding plate, and a cavity is formed inside the metal ball.

[0013] Preferably, the lower surface of the cavity is provided with an opening, and the hook extends to the outside of the opening.

[0014] Preferably, the clamping device further includes a limiting plate and a second metal bolt. The lower surface of the limiting plate is fixedly connected to the horizontal metal plate, the upper surface of the limiting plate is slidably connected to the sliding plate, and the lower surface of the second metal bolt is in contact with the horizontal metal plate.

[0015] Preferably, the hook is made of high carbon steel.

[0016] A method for lifting a steel structure includes the following steps:

[0017] S1. Connect the connecting shaft to the hoisting rope, and connect the hooks at both ends to the steel structure to be hoisted.

[0018] S2. Determine whether the third metal bolt needs to be rotated downwards to provide auxiliary support for the steel structure based on the shape of the steel structure being hoisted.

[0019] S3. Before hoisting, use the weight of the limit block to move the limit block downwards as much as possible;

[0020] S4. By rotating the first metal bolt, the wear-resistant arc-shaped plate comes into contact with the steel cable, thereby maintaining the tension between the hook and the steel structure.

[0021] S5. In the initial stage of lifting, the steel cable will be squeezed upward during the pulling process. The pressure detection device can monitor whether the pressure exceeds the threshold. The tension is the greatest in the initial stage of lifting. If it does not exceed the threshold, it indicates that the lifting is safe.

[0022] (III) Beneficial Effects

[0023] This invention provides a steel structure lifting device and lifting method. It has the following beneficial effects:

[0024] The device utilizes multiple limiting devices, pressure detection devices, and auxiliary support devices to help ensure the safety of the hoisting process. Limiting devices restrict the hoisting height to prevent accidents, while pressure detection devices monitor tension to ensure the hoisting force does not exceed a threshold, thus improving safety. Rotating the first metal bolt precisely adjusts the contact between the wear-resistant arc-shaped plate and the steel cable, controlling the tension between the hook and the steel structure during hoisting, making the hoisting more accurate. Rotating the third metal bolt assists in supporting the steel structure, especially when adjustments or supports may be needed during hoisting, increasing the flexibility and safety of the hoisting process. Attached Figure Description

[0025] Figure 1 This is a partial structural diagram of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0027] Figure 3 This is another structural schematic diagram of the present invention;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure at point B;

[0029] Figure 5 This is a schematic diagram of the first metal bolt structure of the present invention.

[0030] The components include: 1. Vertical fixing plate; 2. Connecting shaft; 3. Rotating wheel; 4. Steel cable; 5. Limiting block; 6. First metal bolt; 7. Metal fixing plate; 8. Hard top cover; 9. Pressure detection device; 10. Elastic roller; 11. Limiting device; 12. Clamping device; 13. Metal ball; 14. Cavity; 15. Transverse fixing shaft; 16. Opening; 17. Hook; 18. Horizontal metal plate; 19. Limiting plate; 20. Sliding plate; 21. Second metal bolt; 22. Third metal bolt; 23. Wear-resistant arc-shaped plate. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-5 As shown, this embodiment of the invention provides a steel structure lifting device, including a longitudinal vertical fixing plate 1. A connecting shaft 2 is fixedly connected to the side surface of the longitudinal vertical fixing plate 1 for connecting to a device that provides lifting force. A rotating wheel 3 is rotatably connected to the side surface of the longitudinal vertical fixing plate 1. A limit device 11 is provided on the outer surface of the rotating wheel 3 for fixing the steel structure. The limit device 11 includes a limit block 5, a first metal bolt 6, a metal fixing plate 7, a rigid top cover 8, a pressure detection device 9, and an elastic roller 10. A battery is provided inside the pressure detection device 9 for providing electrical energy. The pressure detection device 9 is electrically connected to a horn. The upper surface of the elastic roller 10 contacts the lower surface of the pressure detection device 9. The upper surface of the limiting block 5 is provided with a through hole, and the inside of the through hole is slidably connected to the steel cable 4. The lower surface of the limiting block 5 is fixedly connected to the metal fixing plate 7. The side surface of the metal fixing plate 7 is fixedly connected to the rigid top cover 8. The lower surface of the rigid top cover 8 is fixedly connected to the pressure detection device 9. Both ends of the elastic roller 10 are rotatably connected to the metal fixing plate 7. The first metal bolt 6 is threadedly connected to the limiting block 5. One end of the first metal bolt 6 is rotatably connected to a wear-resistant arc-shaped plate 23. The wear-resistant arc-shaped plate 23 contacts the inner surface of the through hole. There are two through holes, which are distributed on the left and right.

[0033] The two ends of the steel cable 4 are fixedly connected to clamping devices 12 for auxiliary support of the steel structure. Clamping devices 12 also include limiting plates 19 and second metal bolts 21. The lower surface of the limiting plate 19 is fixedly connected to the horizontal metal plate 18, and the upper surface of the limiting plate 19 is slidably connected to the sliding plate 20. The lower surface of the second metal bolt 21 contacts the horizontal metal plate 18. The clamping device 12 includes a metal ball 13, a transverse fixing shaft 15, a hook 17, a horizontal metal plate 18, a sliding plate 20, and a third metal bolt 22. The inner surface of the metal ball 13... The surface is rotatably connected to the transverse fixed shaft 15. The outer surface of the transverse fixed shaft 15 is fixedly connected to the hook 17, which is made of high carbon steel. The right surface of the metal ball 13 is fixedly connected to the horizontal metal plate 18. The upper surface of the horizontal metal plate 18 is slidably connected to the sliding plate 20. The interior of the sliding plate 20 is threadedly connected to the third metal bolt 22. The third metal bolt 22 extends to the lower side of the sliding plate 20. The interior of the metal ball 13 forms a cavity 14. The lower surface of the cavity 14 is provided with an opening 16. The hook 17 extends to the outside of the opening 16.

[0034] A method for lifting a steel structure includes the following steps:

[0035] S1. Connect the connecting shaft 2 to the hoisting rope, and connect the hooks 17 at both ends to the steel structure to be hoisted. S2. Determine whether the third metal bolt 22 needs to be rotated downwards based on the shape of the steel structure to provide auxiliary support. S3. Before hoisting, use the weight of the limiting block 5 to move it downwards as much as possible. S4. Rotate the first metal bolt 6 to bring the wear-resistant arc-shaped piece 23 into contact with the steel cable 4, thus maintaining the tension between the hook 17 and the steel structure. S5. In the initial stage of hoisting, the steel cable 4 will be pulled upwards. The pressure detection device 9 can monitor whether the pressure exceeds the threshold. The tension is greatest in the initial stage of hoisting; if it does not exceed the threshold, the hoisting is safe. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel structure lifting device, characterized in that, include: A longitudinal vertical fixing plate (1) is fixedly connected to a connecting shaft (2) on its side surface. A rotating wheel (3) is rotatably connected to the side surface of the longitudinal vertical fixing plate (1). A limiting device (11) is provided on the outer surface of the rotating wheel (3). The limiting device (11) includes a limiting block (5), a first metal bolt (6), a metal fixing plate (7), a rigid top cover (8), a pressure detection device (9), and an elastic roller (10). A through hole is provided on the upper surface of the limiting block (5). The inside of the through hole is slidably connected to the steel cable (4), the lower surface of the limiting block (5) is fixedly connected to the metal fixing plate (7), the side surface of the metal fixing plate (7) is fixedly connected to the hard top cover (8), the lower surface of the hard top cover (8) is fixedly connected to the pressure detection device (9), the two ends of the elastic roller (10) are rotatably connected to the metal fixing plate (7), the first metal bolt (6) is threadedly connected to the limiting block (5), and one end of the first metal bolt (6) is rotatably connected to a wear-resistant arc plate (23). The two ends of the steel cable (4) are fixedly connected to clamping devices (12). The clamping devices (12) include a metal ball (13), a transverse fixing shaft (15), a hook (17), a horizontal metal plate (18), a sliding plate (20), and a third metal bolt (22). The inner surface of the metal ball (13) is rotatably connected to the transverse fixing shaft (15), the outer surface of the transverse fixing shaft (15) is fixedly connected to the hook (17), the right surface of the metal ball (13) is fixedly connected to the horizontal metal plate (18), the upper surface of the horizontal metal plate (18) is slidably connected to the sliding plate (20), and the interior of the sliding plate (20) is threadedly connected to the third metal bolt (22). The third metal bolt (22) extends to the lower side of the sliding plate (20), and a cavity (14) is formed inside the metal ball (13). An opening (16) is provided on the lower surface of the cavity (14). The hook (17) extends to the outside of the opening (16). The clamping device (12) also includes a limiting piece (19) and a second metal bolt (21). The lower surface of the limiting piece (19) is fixedly connected to the horizontal metal plate (18), and the upper surface of the limiting piece (19) is slidably connected to the sliding plate (20). The lower surface of the second metal bolt (21) is in contact with the horizontal metal plate (18).

2. The steel structure lifting device according to claim 1, characterized in that: The pressure detection device (9) is equipped with a battery inside, and the pressure detection device (9) is electrically connected to a horn. The upper surface of the elastic roller (10) is in contact with the lower surface of the pressure detection device (9).

3. The steel structure lifting device according to claim 1, characterized in that: The wear-resistant arc-shaped piece (23) is in contact with the inner surface of the through hole, and there are two through holes distributed on the left and right.

4. A steel structure lifting device according to claim 1, characterized in that: The hook (17) is made of high carbon steel.

5. A method for lifting a steel structure, based on the steel structure lifting device according to claim 1, characterized in that: Includes the following steps: S1. Connect the connecting shaft (2) to the hoisting rope, and connect the hooks (17) at both ends to the steel structure to be hoisted respectively; S2. Determine whether the third metal bolt (22) needs to be rotated downwards to provide auxiliary support for the steel structure based on the shape of the hoisted steel structure. S3. Before hoisting, the limit block (5) is moved as far downward as possible by the weight of the limit block (5); S4. By rotating the first metal bolt (6), the wear-resistant arc plate (23) is brought into contact with the steel cable (4), thereby maintaining the tension between the hook (17) and the steel structure. S5. In the initial stage of hoisting, the steel cable (4) will be squeezed upward during the pulling process. The pressure detection device (9) can monitor whether the pressure exceeds the threshold. The tension is the greatest in the initial stage of hoisting. If it does not exceed the threshold, it indicates that the hoisting is safe.

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