Tower crane perpendicularity correction structure

Abstract

The utility model discloses a tower crane perpendicularity correcting structure which comprises a main body, transition joint angle steel is installed below the main body, a fishplate is installed below the transition joint angle steel, a connecting pin shaft is installed on the fishplate, fixing legs are installed below the fishplate, a connecting plate is installed on the right side of the main body, and a connecting and fixing device is installed below the connecting plate. A component force balancing device is installed below the connecting and fixing device, a first safety rope is installed below the component force balancing device, a construction side chain is installed on the left side of the first safety rope, a safety side chain is installed on the left side of the construction side chain, and a second safety rope is installed above the safety side chain. The perpendicularity correction structure of the tower crane can thoroughly solve the problem of inclination of the tower crane caused by various reasons. The correcting structure has the remarkable advantages that the construction period is short, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, specifically a tower crane verticality correction structure. Background Technology

[0002] In the environment of a construction site, the normal operation of tower cranes is crucial to the progress and safety of the entire project. However, due to the influence of various complex factors such as uneven settlement of the foundation at construction sites, tower cranes are prone to tilting. Once this tilting exceeds the prescribed range, it will inevitably cause the tower crane to stop operating, thus seriously hindering the normal progress of the project.

[0003] The traditional method for correcting tilted tower cranes involves using the anchor rods to straighten the crane while it is in an attached state. While this method seems effective, it has several significant drawbacks. From a mechanical perspective, the anchor rods inevitably experience additional tensile or compressive stress during the straightening process. This is because the forces acting on the anchor rods during straightening are not ideal for their normal operation. Furthermore, this straightening operation also generates additional bending moments in the tower crane.

[0004] As a critical supporting component of the tower crane structure, the tower crane's tower body is susceptible to damage from additional bending moments. These moments alter the stress distribution within its internal structure, leading to a suboptimal operating condition – a state often referred to as "operating with a defect." In this state, the risks to the tower crane increase significantly. Particularly in special circumstances, such as premature attachment operations to correct tilt, the tower crane's overall structure may not yet be in an ideal state for attachment. This premature attachment further exacerbates the instability of the tower crane structure, increasing the risks and potentially triggering a series of safety accidents that could severely damage personnel, equipment, and the project itself. Utility Model Content

[0005] The purpose of this invention is to provide a tower crane verticality correction structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tower crane verticality correction structure, comprising a main body, an intermediate angle steel plate installed below the main body, a fishplate installed below the intermediate angle steel plate, a connecting pin installed on the fishplate, a fixed leg installed below the fishplate, a connecting plate installed on the right side of the main body, a connecting fixing device installed below the connecting plate, a force balancing device installed below the connecting fixing device, a first safety rope installed below the force balancing device, a construction side chain installed to the left of the first safety rope, a safety side chain installed to the left of the construction side chain, and a second safety rope installed above the safety side chain.

[0007] Preferably, at the connection between the transition angle steel and the fixed leg, two fishplates are installed at each external corner, one long and one short.

[0008] Preferably, the connecting and fixing device is equipped with two safety ropes and connected to the connecting plate through a force balancing device.

[0009] Preferably, the fishtail plate is connected to the fixed leg by welding.

[0010] Preferably, a safety side chain is connected to the lower part of the second safety rope via a roller and is bound to the construction side chain at the same position.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This tower crane verticality correction structure, under strict safety precautions, first involves removing the connecting pin and fishplate from the main tower section closest to the jib. Next, material of the appropriate thickness is removed from the upper end of the fixed leg angle steel. Then, the fishplate is welded back in place, and the pin is reinstalled. Through this series of operations, the tilting problem of the tower crane caused by various reasons can be completely resolved. This correction structure has significant advantages, including a shorter construction period and higher work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a partial structural view of the present utility model.

[0015] Figure 3 This is a partial structural view of the present utility model.

[0016] In the diagram: 1. Main body; 2. Connecting plate; 3. Connecting and fixing device; 4. Force balancing device; 5. Safety rope No. 1; 6. Safety rope No. 2; 7. Construction side chain; 8. Safety side chain; 9. Fishplate; 10. Connecting pin; 11. Fixing leg; 12. Transition angle steel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Please refer to Figure 1 This utility model provides a technical solution: a tower crane verticality correction structure, including a main body 1, an intermediate angle steel 12 installed below the main body 1, a fishplate 9 installed below the intermediate angle steel 12, a connecting pin 10 installed on the fishplate 9, a fixed leg 11 installed below the fishplate 9, a connecting plate 2 installed on the right side of the main body 1, a connecting fixing device 3 installed below the connecting plate 2, a force balancing device 4 installed below the connecting fixing device 3, a first safety rope 5 installed below the force balancing device 4, a construction side chain 7 installed to the left of the first safety rope 5, a safety side chain 8 installed to the left of the construction side chain 7, and a second safety rope 6 installed above the safety side chain 8.

[0019] At the connection between the transition angle steel (12) and the fixed leg (11), two fishplates (9) are installed at each external corner, one long and one short.

[0020] In this embodiment, more support is provided for the connection.

[0021] Two safety ropes are installed on the connecting and fixing device (3) and connected to the connecting plate (2) through the force balancing device (4).

[0022] In this embodiment, construction safety is greatly enhanced, making it less likely for the fixed object to fall off the crane during hoisting.

[0023] The fishtail plate (9) is connected to the fixed leg (11) by welding.

[0024] In this embodiment, direct welding is used to make the connection more thorough and avoid the possibility of the fishplate loosening during operation.

[0025] Among them, the safety side chain (8) is connected to the bottom of the second safety rope (6) by a roller and is tied to the construction side chain (7) at the same position.

[0026] In this embodiment, a double-side chain is used, which not only makes it difficult for the heavy object to fall off the hook, but also ensures that it can be fixed immediately in case of an accident.

[0027] Working principle: First, regarding the tower crane tilting backward: Place a heavy object below the appropriate position of the tower crane's boom, then connect the heavy object to the tower crane's hook using a chain hoist. Next, tilt the tower crane backward (towards the counterweight boom side). With proper safety precautions in place, disconnect the connecting pin and fishtail (the connecting piece between the tower crane's fixed legs and the tower body) from the main tower body near the counterweight boom. Operate the chain hoist to create a gap between the lower plane of the tower crane's transition section angle steel main rod and the upper plane of the fixed leg angle steel. Place a steel plate of appropriate thickness into the gap and weld it securely. Operate the chain hoist again to compact the steel plate. Weld the fishtail plate and install the pin. Check the tower crane's verticality correction effect, remove the chain hoist, and move the heavy object away. If the tower crane is tilting forward, after taking the same safety precautions, remove the connecting pin and fishplate from the main tower section closest to the boom. Remove the material of the appropriate thickness from the upper end of the angle steel fixing leg. Weld the fishplate and install the pin. Check the verticality correction effect of the tower crane, remove the lifting chain and move the heavy object. Finally, after welding the fishplate, perform magnetic particle testing to inspect the weld quality.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower crane verticality correction structure, comprising a main body (1), characterized in that: A transition angle steel (12) is installed below the main body (1), a fishplate (9) is installed below the transition angle steel (12), a connecting pin (10) is installed on the fishplate (9), a fixed leg (11) is installed below the fishplate (9), a connecting plate (2) is installed on the right side of the main body (1), a connecting fixing device (3) is installed below the connecting plate (2), a force balancing device (4) is installed below the connecting fixing device (3), a first safety rope (5) is installed below the force balancing device (4), and a construction side chain (7) is installed on the left side of the first safety rope (5).

2. The tower crane verticality correction structure according to claim 1, characterized in that: At the connection between the transition angle steel (12) and the fixed leg (11), two fishplates (9) are installed at each external corner, one long and one short.

3. The tower crane verticality correction structure according to claim 1, characterized in that: Two safety ropes are installed on the connecting and fixing device (3) and connected to the connecting plate (2) through the force balancing device (4).

4. The tower crane verticality correction structure according to claim 1, characterized in that: The fishtail plate (9) is connected to the fixed leg (11) by welding.

5. The tower crane verticality correction structure according to claim 1, characterized in that: A safety side chain (8) is installed on the left side of the construction side chain (7), and a second safety rope (6) is installed above the safety side chain (8).

6. The tower crane verticality correction structure according to claim 5, characterized in that: The safety side chain (8) is connected to the bottom of the second safety rope (6) via a roller and is bound to the construction side chain (7) at the same position.

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