Steel strand laying device for dragging and shipping large structure
By designing a closed-loop transmission system for towing and loading steel strands, the problems of low efficiency and poor safety in existing steel strand laying technologies have been solved. This has enabled the efficient and synchronous laying of multiple steel strands, reducing manpower input and the risk of slippage.
Patent Information
- Application Number
- CN202423033669.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing technologies, the laying efficiency of steel strands by manual traction and winch traction is low, the manpower input is large, and the risk is high. In addition, the winch has insufficient friction and is prone to slipping, making it impossible to achieve efficient laying of multiple steel strands.
Design a large-structure towing and ship loading steel strand laying device, which adopts a closed transmission system consisting of trailer, guide pulley, steel wire rope, ground anchor, spliced steel wire rope and steel strand tray, etc. The torque of the steel strand is automatically released by thrust ball bearing and rope separator to realize the synchronous laying of multiple steel strands.
It improves the efficiency of steel strand laying, reduces manpower input, lowers the intensity of work, avoids slippage, and meets the needs of laying large-tonnage and long-distance steel strands.
Smart Images
Figure CN223495828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission system technology, specifically to a device for laying steel strands for towing and loading large structures onto ships. Background Technology
[0002] With the rapid development of China's offshore oil industry, the weight of individual offshore oil platform structures is getting larger and larger. When towing and loading them onto ships, it is necessary to use tension jacks for towing. Since tension jacks need to be threaded through a large number of steel strands, the steel strands are usually laid by two methods: manual pulling and winch pulling.
[0003] As the module weight increases, the length, quantity, and weight of the steel strands used also increase. Dragging large structures requires hundreds of steel strands. When laying the steel strands manually (500 meters), each strand requires 50 people and takes an average of 50 minutes, resulting in low efficiency, high manpower requirements, high workload, and high risk. Using a winch to pull the steel strands (500 meters) is also inefficient due to the winch's low pulling force, low speed, and insufficient friction, which makes slippage common. This method also prevents the laying of multiple steel strands, and each trip takes 20 minutes, making it less efficient and suitable only for short distances.
[0004] The main disadvantages of using manual traction to lay steel strands are as follows:
[0005] 1. It requires a large investment of manpower and is inefficient, time-consuming and labor-intensive.
[0006] 2. Laying steel strands manually takes a lot of time, puts pressure on the shipping schedule, and increases costs.
[0007] 3. When laying the floor manually, it is necessary to drag it by hand, which may cause personal injury.
[0008] 4. As the weight of the module increases, the number of steel strands increases, leading to increased workload.
[0009] The main disadvantages of using a winch to pull the steel strand for laying are as follows:
[0010] 1. The winch speed is low, resulting in low efficiency in laying steel strands.
[0011] 2. Insufficient friction of the winch can easily cause slippage, making it impossible to lay long-distance steel strands.
[0012] 3. The winch has low pulling force and cannot lay multiple steel strands at the same time.
[0013] To address the shortcomings of existing technologies, this utility model provides a device for laying steel strands for towing and loading large structures onto ships, thereby solving the aforementioned problems. Utility Model Content
[0014] To address the shortcomings of existing technologies, this utility model provides a large-scale structure towing and loading steel strand laying device, which can simultaneously lay multiple steel strands and release the torque caused by the coiling of the steel strands during transportation. Compared with the existing manual laying and winch laying methods, this method is more convenient, requires very little manpower, and greatly improves the efficiency of laying steel strands.
[0015] To achieve the above objectives, this utility model is implemented through the following technical solution: a large structure towing and loading steel strand laying device, including a trailer and a steel wire rope set on the trailer, the middle part of the steel wire rope is set on the barge, and the two ends of the steel wire rope are provided with ground anchors and fixed to the ground by the ground anchors;
[0016] The barge is equipped with a slide, on which a braided steel wire rope is fixed in position to the steel wire rope. A steel strand tray is connected to the braided steel wire rope, and a steel strand fastening device is provided on the steel strand tray. A thrust ball bearing is provided between the steel strand tray and the steel strand fastening device.
[0017] Preferably, the slide is equipped with a rope divider.
[0018] Preferably, the wire rope is provided with multiple sets of guide pulleys, and the multiple sets of guide pulleys are respectively fixedly connected to the ground, the slide, and the barge.
[0019] Preferably, the inserted steel wire rope is provided with anchor clips, and the anchor clips are fixedly connected to the steel wire rope.
[0020] Preferably, the steel strand tray is provided with multiple sets of steel strand fastening devices.
[0021] Preferably, the steel strand tray has fixing holes corresponding to the inserted steel wire rope.
[0022] Preferably, the rope separator is a row of pulleys arranged on the slide rail, with a closed area above the pulleys. This closed area allows only one steel strand to pass through, preventing the steel strands from tangling together when they spin during the laying process.
[0023] Preferably, the guide pulleys are connected to each lifting point with shackles, so that the wire rope forms a closed, continuously circulating transmission system.
[0024] This utility model discloses a device for laying steel strands for towing and loading large structures onto ships, which has the following beneficial effects:
[0025] This large-scale structure towing and ship loading steel strand laying device can simultaneously lay multiple steel strands and release the torque caused by the coiling of the steel strands during transportation. It features low labor input, high steel strand laying efficiency, low cost, and short construction period. The trailer is powerful and not prone to slippage, enabling it to complete the towing and ship loading of large-tonnage structures and the laying of large quantities of steel strands over long distances, meeting usage requirements. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0028] Figure 2 This is a schematic diagram of the structure of the steel strand tray of this utility model.
[0029] In the diagram: 1. Trailer; 2. Guide pulley; 3. Wire rope; 4. Ground anchor; 5. Anchor clamp; 6. Plug-in wire rope; 7. Steel strand tray; 8. Steel strand fastening device; 9. Thrust ball bearing; 10. Rope separator; 11. Slide rail; 12. Barge. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, 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.
[0031] This application provides a device for laying steel strands for towing and loading large structures, which solves the problem that as the weight of the modules increases, the length, quantity, and weight of the steel strands used also increase. The towing of large structures requires hundreds of steel strands, and the traction method using manpower or winches is inefficient and cannot meet the needs.
[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0033] This utility model discloses a device for laying steel strands for towing and loading large structures onto ships, according to the attached... Figure 1-2As shown, it includes a trailer 1 and a steel wire rope 3 installed on the trailer 1. The middle part of the steel wire rope 3 is installed on the barge 12, and the two ends of the steel wire rope 3 are provided with ground anchors 4 and fixed to the ground by the ground anchors 4.
[0034] The barge 12 is equipped with a slideway 11, on which a braided steel wire rope 6 is fixed to the position of the steel wire rope 3. A steel strand tray 7 is connected to the braided steel wire rope 6, and a steel strand fastening device 8 is provided on the steel strand tray 7. A thrust ball bearing 9 is provided between the steel strand tray 7 and the steel strand fastening device 8.
[0035] The slide 11 is equipped with a rope separator 10; the rope separator 10 is a row of pulleys arranged on the slide 11, and the area above the pulleys is a closed area, which can only allow one steel strand to pass through, to prevent the steel strands from getting tangled when they spin during the laying of the steel strands.
[0036] The wire rope 3 is equipped with multiple sets of guide pulleys 2, which are fixedly connected to the ground, the slide 11 and the barge 12 respectively. The guide pulleys 2 are connected to each lifting point with shackles, so that the wire rope 3 forms a closed and continuous circulation transmission system.
[0037] Anchor clips 5 are installed on the braided steel wire rope 6, and the anchor clips 5 are fixedly connected to the steel wire rope 3.
[0038] The steel strand tray 7 is equipped with multiple sets of steel strand fastening devices 8, and the steel strand tray 7 has fixing holes corresponding to the inserted steel wire rope 6.
[0039] The large structure towing and loading steel strand laying device uses a trailer 1, guide pulley 2, steel wire rope 3, and ground anchor 4 to form a closed, continuous circulation transmission system on the slide 11. By connecting the spliced steel wire rope 6 to the steel strand tray 7, the spliced steel wire rope 6 is fixed to the steel wire rope 3 of the transmission system using anchor clips 5. During laying, the steel strand passes through the steel strand fastening device 8 for connection. The steel strand fastening device 8 is placed on the steel strand tray 7. The trailer 1 moves forward, causing the steel wire rope 2 of the transmission system to run, transporting a large number of steel strands, several hundred meters long, from the front end of the structure to the bow end of the barge 12.
[0040] During the operation of the transmission system, a rotatable thrust ball bearing 9 and a rope separator 10 are connected between the steel strand tray 7 and the steel strand fastening device 8 used during steel strand laying. The rope separator 10 is located in the middle area of the transmission system. When the steel strand changes from a coiled state to a straightened state, the system can automatically release the torque caused by the coiling during transportation. This system can simultaneously lay multiple steel strands and release the torque caused by the coiling during transportation. Compared with existing manual and winch-based steel strand laying methods, this method is more convenient, requires very little manpower, greatly improves the efficiency of steel strand laying, and can release the torque caused by the coiling during transportation.
[0041] The laying process is as follows:
[0042] Step 1: Preparations before laying.
[0043] 1.1. Based on the specific location of the steel strand, prepare the steel strand tray 7 and the self-made steel strand fastening device 8.
[0044] 1.2 Preparation of trailer 1, guide pulley 2, ground anchor 4, wire rope 3, braided wire rope 6, wire rope fastening device for laying wire strand 8, thrust ball bearing 9, rope separator 10.
[0045] 1.3. Prepare a sufficient number of spliced steel wire ropes 6, such as Figure 1 As shown.
[0046] Step 2: Design the transmission system.
[0047] 2.1 The transmission system is the core of the entire laying system. When the steel strands are connected to the transmission system through the steel strand tray 7, multiple steel strands are laid simultaneously by means of the tractor units on both sides of the transmission system.
[0048] 2.2, such as Figure 1 As shown, when the right-hand tractor moves forward, the left-hand steel strand is moved towards the bow by the force of the transmission system, and the empty steel strand tray 7 on the right-hand side is also moved towards the bow by the force of the transmission system, thus creating a large structure. After the right-hand steel strand is transmitted, it is connected to the steel strand tray 7. Then, the left-hand tractor moves forward, causing the right-hand steel strand to move towards the bow by the force of the transmission system, and the empty steel strand tray 7 on the left-hand side to move towards the bow by the force of the transmission system, thus achieving a closed-loop steel strand laying process.
[0049] Step 3: Connect to the transmission system.
[0050] 3.1. Based on the design in step two, connect all the components from step one in sequence to form a transmission system. After the wire rope 3 passes through all the pulleys, connect both ends of the wire rope 3 to the ground anchors 4 on both sides for fixation.
[0051] Step 4: System installation and debugging.
[0052] 4.1 After the transmission system is connected, the right tractor unit moves forward first, while the left tractor unit is not connected to the transmission system. Once the left steel strand tray 7 reaches the bow, the left tractor unit moves forward first, while the right tractor unit is not connected to the transmission system. Once the right steel strand tray 7 reaches the bow, confirm that the entire laying system is operating normally.
[0053] Step 5: Laying steel strands.
[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for laying steel strands for towing and loading large structures, comprising a trailer (1) and a steel wire rope (3) mounted on the trailer (1), characterized in that: The middle part of the wire rope (3) is set on the barge (12), and the two ends of the wire rope (3) are provided with ground anchors (4) and fixed to the ground by the ground anchors (4); The barge (12) is provided with a slide (11), and the slide (11) is provided with a braided steel wire rope (6) fixed to the position of the steel wire rope (3). A steel strand tray (7) is connected to the braided steel wire rope (6), and a steel strand fastening device (8) is provided on the steel strand tray (7). A thrust ball bearing (9) is provided between the steel strand tray (7) and the steel strand fastening device (8).
2. The device for laying steel strands for towing and loading large structures onto ships according to claim 1, characterized in that: The slide (11) is equipped with a rope divider (10).
3. The device for laying steel strands for towing and loading large structures onto ships according to claim 1, characterized in that: The wire rope (3) is provided with multiple sets of guide pulleys (2), which are fixedly connected to the ground, the slide (11) and the barge (12) respectively.
4. The device for laying steel strands for towing and loading large structures onto ships according to claim 1, characterized in that: Anchor clips (5) are provided on the braided steel wire rope (6), and the anchor clips (5) are fixedly connected to the steel wire rope (3).
5. The device for laying steel strands for towing and loading large structures onto ships according to claim 1, characterized in that: The steel strand tray (7) is equipped with multiple sets of steel strand fastening devices (8).
6. The device for laying steel strands for towing and loading large structures onto ships according to claim 5, characterized in that: The steel strand tray (7) has fixing holes corresponding to the inserted steel wire rope (6).
7. A large-structure towing and loading steel strand laying device according to claim 2, characterized in that: The rope divider (10) is a row of pulleys arranged on the slide (11), with a closed area above the pulleys, through which only one steel strand can pass.
8. A large-structure towing and loading steel strand laying device according to claim 3, characterized in that: The guide pulley (2) is connected to each lifting point by a shackle.