Bridge steel box girder hoisting device

Abstract

The utility model relates to a bridge steel box girder hoisting device which is mainly composed of a hoisting frame and a control device, a stable connecting system is constructed through an upper lifting lug, a connecting hook and a lifting chain and is used for hoisting a steel box girder, an electromagnet can adjust magnetic force and provide extra fixing force for the steel box girder, and a laser transmitter is matched with a receiver to transmit laser to the steel box girder. The position and posture of the steel box girder can be monitored in real time, all-directional monitoring of the hoisting process is achieved in combination with a monitoring probe, the control device integrates a data processing module, an instruction sending module and an alarm module, all components are accurately controlled according to monitoring data, and during hoisting operation, the hoisting process is completed through the processes of device assembling, auxiliary equipment preparing, hoisting, monitoring and adjusting and the like. And accurate in-place installation of the steel box girder is achieved. The device effectively improves the safety, the accuracy and the intelligent level of hoisting of the steel box girder, and is suitable for various bridge construction projects.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a bridge steel box girder hoisting device. Background Technology

[0002] In bridge construction projects, the hoisting of steel box girders is an extremely critical step.

[0003] Currently, traditional steel box girder hoisting methods have many drawbacks, such as: 1. Traditional hoisting equipment lacks effective positioning methods, making it difficult to ensure the accurate installation position of the steel box girder, affecting the overall structural stability and safety of the bridge, and potentially leading to increased maintenance costs and shortened service life; 2. Traditional hoisting methods for fixing steel box girders are limited, often relying solely on hook connections. During lifting and movement, in complex construction environments or unexpected situations, the steel box girder is prone to swaying, shifting, or even falling off, causing safety accidents and economic losses; 3. Existing hoisting equipment typically lacks real-time monitoring devices, making it difficult for construction personnel to promptly grasp the status of the steel box girder (such as changes in position and posture) and the operating status of the equipment during hoisting. This inability to detect and address potential problems in advance is detrimental to ensuring smooth construction and personnel safety.

[0004] Therefore, it is necessary to design a bridge steel box girder hoisting device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a bridge steel box girder hoisting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bridge steel box girder hoisting device includes a hoisting frame and a control device. Upper lifting lugs are fixedly installed on the top left and right sides of the hoisting frame. A third connecting hook is hung on each upper lifting lug. A first lifting chain is fixedly connected to the third connecting hook. A second connecting hook is fixedly connected to the side of the first lifting chain away from the third connecting hook. A first connecting hook is fixedly connected to the side of the second connecting hook away from the first lifting chain. A pulley assembly is fixedly connected above the first connecting hook. A wire rope is connected to the pulley assembly. Electromagnets are installed on the left and right sides of the hoisting frame. Multiple lower lifting lugs are installed at the bottom of the hoisting frame. A second lifting chain is fixedly connected to each lower lifting lug, and a clamping hook located below it is fixedly connected through the second lifting chain. The clamping hook is fixedly connected to the steel box girder. Multiple steel box girder lifting lugs are correspondingly installed on the top of the steel box girder.

[0008] As a preferred embodiment of this utility model, the second connecting hook and the first connecting hook, the upper lifting lug and the third connecting hook, the lower lifting lug and the second lifting chain are all detachable structures.

[0009] As a preferred embodiment of this utility model, the electromagnet is an electromagnet with adjustable magnetic strength, and its magnetic strength can be adjusted in real time by a control device.

[0010] As a preferred embodiment of this utility model, threaded holes are correspondingly provided on the clamping hook and the lifting lug of the steel box girder. After the clamping hook is inserted into the lifting lug of the steel box girder, bolts are used to lock and fix it through the threaded holes.

[0011] As a preferred embodiment of this utility model, a laser emitter is installed on the hoisting frame, and a laser receiver is correspondingly provided on the steel box girder. Both the laser emitter and the laser receiver are electrically connected to the control device for real-time monitoring of the position and attitude of the steel box girder.

[0012] As a preferred embodiment of this utility model, a monitoring probe is installed on the hoisting frame. The monitoring probe is electrically connected to the control device and is used to capture images of the steel box girder hoisting process in real time and transmit them to the control device.

[0013] As a preferred embodiment of this utility model, both the first and second lifting chains are made of high-strength alloy chains to ensure the safety of the lifting process.

[0014] As a preferred embodiment of this utility model, the control device includes a data processing module, an instruction sending module, and an alarm module. The data processing module is used to process the data transmitted by the laser transmitter, the laser receiver, and the monitoring probe. The instruction sending module is used to send control instructions to the electromagnet according to the data processing results. The alarm module is used to issue an alarm when an abnormal situation is detected.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through the design of a bridge steel box girder hoisting device, achieves the following effects: 1. The second and first connecting hooks, upper and third connecting hooks, lower lifting lugs, and second lifting chain in the device are detachable structures, facilitating installation, disassembly, and maintenance. Simultaneously, the coordinated connection of multiple components ensures more stable fixation of the steel box girder, reducing hoisting risks; 2. The electromagnet's adjustable magnetic strength allows for real-time control based on the steel box girder's material, weight, and shape, ensuring appropriate adsorption force and enhancing hoisting stability and safety; 3. The clamping hooks and steel box girder lifting lugs are securely locked together via threaded holes and bolts, effectively preventing loosening or detachment of the clamping hooks and ensuring reliable fixation of the steel box girder during hoisting; 4. A laser transmitter and receiver work together to monitor the position and attitude of the steel box girder in real time and transmit the data to the control device. This facilitates timely adjustments, achieves precise positioning, improves the installation accuracy of the steel box girder, and ensures bridge construction quality; 5. The monitoring probe captures images in real time and transmits them to the control device, allowing construction personnel to monitor the situation and promptly detect any abnormalities. The alarm module of the control device issues an alarm when an anomaly is detected, alerting personnel to handle the situation and ensuring construction safety; 6. The first and second lifting chains use high-strength alloy chains, which are strong, tough, and fatigue-resistant, capable of withstanding large tensile forces, reducing the risk of chain breakage and ensuring safety during the lifting process; 7. The control device integrates data processing, command transmission, and alarm modules. It can process data from the laser transmitter, laser receiver, and monitoring probes, control the electromagnet components based on the results, and also issue alarms in case of anomalies, achieving intelligent monitoring and management, and improving lifting efficiency and reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a connection block diagram of the present utility model.

[0020] In the diagram: 1. Lifting frame; 2. Upper lifting lug; 3. Third connecting hook; 4. First lifting chain; 5. Second connecting hook; 6. First connecting hook; 7. Pulley assembly; 8. Wire rope; 9. Electromagnet; 10. Lower lifting lug; 11. Second lifting chain; 12. Clamping hook; 13. Steel box girder; 14. Steel box girder lifting lug; 15. Control device; 16. Laser receiver; 17. Threaded hole; 18. Monitoring probe; 19. Laser transmitter. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0026] A bridge steel box girder hoisting device includes a hoisting frame 1 and a control device 15. Upper lifting lugs 2 are fixedly installed on the left and right sides of the top of the hoisting frame 1. A third connecting hook 3 is hung on the upper lifting lug 2. A first lifting chain 4 is fixedly connected to the third connecting hook 3. A second connecting hook 5 is fixedly connected to the side of the first lifting chain 4 away from the third connecting hook 3. A first connecting hook 6 is fixedly connected to the side of the second connecting hook 5 away from the first lifting chain 4. A pulley assembly 7 is fixedly connected above the first connecting hook 6. A steel wire rope 8 is connected to the pulley assembly 7. Electromagnets 9 are arranged on the left and right sides of the hoisting frame 1. Multiple lower lifting lugs 10 are arranged at the bottom of the hoisting frame 1. A second lifting chain 11 is fixedly connected to the lifting lug 10, and a clamping hook 12 located below it is fixedly connected through the second lifting chain 11. The clamping hook 12 is fixedly connected to the steel box girder 13, and multiple steel box girder lifting lugs 14 are correspondingly provided on the top of the steel box girder 13. The pulley assembly 7 is connected to the first connecting hook 6 through the wire rope 8, and the second connecting hook 5, the first lifting chain 4, and the third connecting hook 3 are connected in sequence. The third connecting hook 3 is hung on the upper lifting lug 2. At the same time, the second lifting chain 11 is connected to the lower lifting lug 10, and the other end is connected to the clamping hook 12. The clamping hook 12 and the steel box girder lifting lug 14 are locked and fixed by bolts passing through the threaded holes 17.

[0027] Specifically, the second connecting hook 5 and the first connecting hook 6, the upper lifting lug 2 and the third connecting hook 3, the lower lifting lug 10 and the second lifting chain 11 are all detachable structures. Before the lifting operation, the second connecting hook 5 and the first connecting hook 6, the upper lifting lug 2 and the third connecting hook 3, the lower lifting lug 10 and the second lifting chain 11 are connected and assembled. After the operation is completed, these components are disassembled and separated in sequence. This facilitates the installation, disassembly and transportation of the lifting device, and makes daily maintenance and component replacement easier, thus improving the flexibility and convenience of the device.

[0028] Specifically, electromagnet 9 is an adjustable electromagnet, whose magnetic strength can be adjusted in real time via control device 15. During the preparation stage for hoisting the steel box girder 13, electromagnet 9 is activated via control device 15. Based on the material and weight of the steel box girder 13, the magnetic strength of electromagnet 9 is adjusted via control device 15 to ensure it adheres to the surface of the steel box girder 13. After hoisting, electromagnet 9 is deactivated via control device 15. The adjustable magnetic strength of electromagnet 9 allows it to adapt to different working conditions, providing additional fixing force to the steel box girder 13, preventing displacement during hoisting, and enhancing the stability and safety of the hoisting process.

[0029] Specifically, threaded holes 17 are provided on the clamping hook 12 and the lifting lug 14 of the steel box girder. After the clamping hook 12 is inserted into the lifting lug 14 of the steel box girder, it is locked and fixed by passing a bolt through the threaded hole 17. The clamping hook 12 is inserted into the lifting lug 14 of the steel box girder, and the bolt is passed through the corresponding threaded hole 17 and tightened to lock and fix the clamping hook 12 and the lifting lug 14 of the steel box girder. This makes the connection between the clamping hook 12 and the steel box girder 13 firm and reliable, prevents the clamping hook 12 from loosening or falling off, and further ensures the stability of the steel box girder 13 during the hoisting process.

[0030] Specifically, a laser emitter 19 is installed on the lifting frame 1, and a corresponding laser receiver 16 is installed on the steel box girder 13. Both the laser emitter 19 and the laser receiver are electrically connected to the control device 15 for real-time monitoring of the position and attitude of the steel box girder 13. Before the lifting operation begins, the laser emitter 19 on the lifting frame 1 and the laser receiver 16 on the steel box girder 13 are turned on to connect them to the control device 15. During the lifting process, the laser emitter 19 emits laser signals, and the laser receiver 16 receives the signals and transmits them to the control device 15. The data processing module of the control device 15 processes and analyzes the signal data, enabling real-time monitoring of the position and attitude of the steel box girder 13. If any deviation occurs, the control device 15 can promptly issue instructions for adjustment, thereby achieving precise positioning of the steel box girder 13, improving the accuracy of the lifting and the quality of bridge construction.

[0031] Specifically, a monitoring probe 18 is installed on the hoisting frame 1. The monitoring probe 18 is electrically connected to the control device 15 and is used to capture images of the steel box girder 13 during hoisting in real time and transmit them to the control device 15. During the hoisting operation, the monitoring probe 18 on the hoisting frame 1 is activated to maintain its connection with the control device 15. The monitoring probe 18 captures images of the steel box girder 13 during hoisting in real time and transmits the image information to the control device 15. Construction personnel can view the monitoring images in real time through the control device 15 to promptly grasp the hoisting status of the steel box girder 13, such as whether there is any shaking or whether the component connections are normal, so as to promptly detect and deal with potential safety problems and ensure the safe conduct of the hoisting operation.

[0032] Specifically, both the first lifting chain 4 and the second lifting chain 11 use high-strength alloy chains to ensure the safety of the lifting process.

[0033] Specifically, the control device 15 includes a data processing module, a command sending module, and an alarm module. The data processing module processes the data transmitted by the laser transmitter 19, the laser receiver 16, and the monitoring probe 18. The command sending module sends control commands to the electromagnet 9 based on the data processing results. The alarm module issues an alarm when an abnormal situation is detected. The data processing module of the control device 15 receives and processes the data transmitted by the laser transmitter 19, the laser receiver 16, and the monitoring probe 18. The command sending module sends control commands to the electromagnet 9 based on the data processing results, such as adjusting the magnetic strength of the electromagnet 9 or adjusting the movement of the hoisting equipment. When the alarm module detects an abnormal situation (such as excessive deviation in the position of the steel box girder 13 or loose parts), it issues an alarm to remind the staff to handle the situation.

[0034] The working process of this utility model is as follows: When using this bridge steel box girder hoisting device, firstly, the pulley assembly 7 is fixed to the first connecting hook 6 via the wire rope 8. Then, the second connecting hook 5, the first lifting chain 4, and the third connecting hook 3 are connected in sequence, so that the third connecting hook 3 is hung on the upper lifting lug 2, completing the construction of the top connection system of the hoisting frame 1. One end of the second lifting chain 11 is connected to the lower lifting lug 10, and the other end is connected to the clamping hook 12. The clamping hook 12 is inserted into the steel box girder lifting lug 14 and locked with bolts through the threaded holes 17, completing the connection between the steel box girder 13 and the bottom of the hoisting frame 1. Then, electromagnets 9 are installed on both sides of the hoisting frame 1 and connected to the control device 15. The control device 15 is turned on, and the magnetic strength of the electromagnets 9 is adjusted according to the condition of the steel box girder 13. The laser emitter 19 is installed on the hoisting frame 1, and the laser receiver 16 is installed on the steel box girder 13, both of which are connected to the control device 15. Simultaneously, the monitoring probe 18 is activated and connected to the control device 15. After installation, the control device 15 controls the pulley assembly 7, using the wire rope 8 to lift the hoisting frame 1, causing the steel box girder 13 to rise slowly. At this time, the laser transmitter 19 continuously emits signals, and the laser receiver 16 receives and transmits data to the control device 15, monitoring the position and attitude of the steel box girder 13 in real time. If there is a deviation, the command sending module of the control device 15 issues a command to adjust the movement of the hoisting frame 1. The monitoring probe 18 captures images in real time and transmits them to the control device 15, allowing construction personnel to observe in real time and handle any abnormalities promptly. If the alarm module of the control device 15 detects an abnormality, it immediately issues an alarm. When the steel box girder 13 reaches the designated installation position, it is fine-tuned by the control device 15 to achieve precise positioning. Then, the steel box girder 13 is slowly lowered to the installation point to complete the installation. After installation, the operation is reversed: the bolts are removed, and the clamping hook 12 is separated from the steel box girder lifting lug 14. Disassemble the second lifting chain 11, lower lifting lug 10, third connecting hook 3, first lifting chain 4, second connecting hook 5, and first connecting hook 6 in sequence to complete the disassembly of the device.

[0035] 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 bridge steel box girder hoisting device, comprising a hoisting frame (1) and a control device (15), characterized in that: The top of the hoisting frame (1) is fixedly provided with upper lifting lugs (2) on the left and right sides, the upper lifting lugs (2) are provided with third connecting hooks (3), the third connecting hooks (3) are fixedly connected with first lifting chains (4), the first lifting chains (4) are fixedly connected with second connecting hooks (5) away from the third connecting hooks (3), the second connecting hooks (5) are fixedly connected with first connecting hooks (6) away from the first lifting chains (4), the first connecting hooks (6) are fixedly connected with pulley assemblies (7) above, the pulley assemblies (7) are connected with steel wire ropes (8), the hoisting frame (1) is provided with electromagnets (9) on the left and right sides, the bottom of the hoisting frame (1) is provided with a plurality of lower lifting lugs (10), the lower lifting lugs (10) are fixedly connected with second lifting chains (11), and clamping hooks (12) located below the lower lifting lugs (10) are fixedly connected through the second lifting chains (11), the clamping hooks (12) are fixedly connected with steel box girders (13), and the top of the steel box girder (13) is provided with a plurality of steel box girder lifting lugs (14).

2. The bridge steel box girder hoisting device according to claim 1, characterized in that: The second connecting hooks (5) and the first connecting hooks (6), the upper lifting lugs (2) and the third connecting hooks (3), and the lower lifting lugs (10) and the second lifting chains (11) are detachable structures.

3. The bridge steel box girder hoisting device according to claim 1, characterized in that: The electromagnets (9) are electromagnets with adjustable magnetic strength, and the magnetic strength thereof can be controlled in real time through a control device (15).

4. The bridge steel box girder hoisting device according to claim 1, characterized in that: Threaded holes (17) are formed in the clamping hooks (12) and the steel box girder lifting lugs (14) correspondingly, and after the clamping hooks (12) are clamped into the steel box girder lifting lugs (14), bolts are used to lock and fix the clamping hooks (12) through the threaded holes (17).

5. The bridge steel box girder hoisting device according to claim 1, characterized in that: A laser emitter (19) is mounted on the hoisting frame (1), a laser receiver (16) is correspondingly provided on the steel box girder (13), and the laser emitter (19) and the laser receiver are electrically connected with the control device (15) and used to monitor the position and posture of the steel box girder (13) in real time.

6. The bridge steel box girder hoisting device according to claim 1, characterized in that: A monitoring probe (18) is arranged on the hoisting frame (1), the monitoring probe (18) is electrically connected with the control device (15) and used to shoot pictures in the hoisting process of the steel box girder (13) in real time and transmit the pictures to the control device (15).

7. The bridge steel box girder hoisting device according to claim 1, characterized in that: The first lifting chains (4) and the second lifting chains (11) are high-strength alloy chains, so as to ensure the safety of the hoisting process.

8. The bridge steel box girder hoisting device according to claim 1, characterized in that: The control device (15) comprises a data processing module, an instruction sending module and an alarm module, the data processing module is used to process data transmitted by the laser emitter (19), the laser receiver (16) and the monitoring probe (18), the instruction sending module is used to send control instructions to the electromagnets (9) according to the data processing result, and the alarm module is used to issue an alarm when an abnormal condition is detected.

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