An underwater cable laying angle precision adjusting device

Abstract

The utility model relates to the technical field of submarine cable laying, disclose a kind of submarine cable laying angle precision adjusting device, including burying plough and movable box, the top of burying plough is equipped with adjusting assembly, the movable box is located at the top of the adjusting assembly, the inside of the movable box is equipped with clamping assembly, the bottom of burying plough is equipped with burying knife, the inside of burying knife is equipped with limit slot, the top of burying plough is equipped with wire inlet, the adjusting assembly includes motor, the motor is installed in the top of burying plough, the output of the motor is fixedly connected with pinion, the top of burying plough is rotatably connected with gear wheel. In the utility model, motor, pinion, gear wheel and rotating shaft cooperate, driving rotating shaft synchronous rotation, and then driving burying knife to realize accurate angle fine adjustment, can be quickly adapted to submarine complex terrain, avoid burying knife and submarine hard rock, rigid contact of reef.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable laying technology, and in particular to a device for precisely adjusting the angle of submarine cable laying. Background Technology

[0002] Submarine cables are signal and power transmission carriers specifically designed for marine environments. They can connect land, islands, offshore wind power platforms, and oil and gas facilities. They have advantages such as resistance to seawater corrosion, resistance to deep-sea high pressure, resistance to marine organism attachment, and stable signal transmission. They can operate for a long time under complex conditions such as storms and ocean currents, and are a key infrastructure for building marine energy networks and transoceanic communication systems.

[0003] The existing submarine cable laying angle adjustment device has a core structure that includes a burying plow, an adjusting rod, a manual rotating wheel, and a fixed base. The burying plow forms the main frame, with a burying knife at the bottom for trenching and burying the cable. One end of the adjusting rod is connected to the burying knife, and the fixed base locks the device to the laying vessel's traction mechanism to ensure overall stability.

[0004] However, existing devices have large mechanical gaps and low adjustment precision, making it difficult to adapt to dynamic changes in seabed sediment hardness and terrain slope. They are prone to uneven cable burial depth due to angle deviations, and may even cause problems such as jamming of the burial knife and cable scratches. Therefore, a precise adjustment device for submarine cable laying angle is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a device for precise adjustment of the angle of submarine cable laying, which aims to improve the problem of difficulty in temporary angle adjustment in the existing technology, resulting in jamming of the laying knife.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for precisely adjusting the angle of submarine cable laying includes a laying plow and a movable box. An adjustment component is installed on the top of the laying plow, and the movable box is located on top of the adjustment component. A clamping component is installed inside the movable box. A laying knife is installed at the bottom of the laying plow, and a limit groove is formed inside the laying knife. An inlet is formed at the top of the laying plow.

[0008] The adjustment assembly includes a motor, which is mounted on the top of the burying plow. A small gear is fixedly connected to the output end of the motor, and a large gear is rotatably connected to the top of the burying plow. The small gear and the large gear mesh with each other. A rotating shaft is fixedly connected to the bottom of the large gear, and the bottom of the rotating shaft is fixedly connected to the top of the burying blade.

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes an electric push rod, which is fixedly connected inside the movable box. A crossbar is fixedly connected to the output end of the electric push rod. Connecting rods are rotatably connected to both sides of the crossbar. Two moving blocks are slidably connected inside the movable box. The other end of the connecting rod is rotatably connected to the inside of the moving block. A gripper is fixedly connected to one end of the moving block.

[0011] As a further description of the above technical solution:

[0012] A sand-blowing pipe is fixedly connected to the bottom of the burying plow, and the sand-blowing pipe is located on the outside of the burying knife.

[0013] As a further description of the above technical solution:

[0014] Rollers are installed on both sides of the burying plow, and the rollers are located on both sides of the burying knife;

[0015] As a further description of the above technical solution:

[0016] The top of the embedding knife is rotatably connected to a pressure plate, which is located inside the limiting groove.

[0017] As a further description of the above technical solution:

[0018] The top of the burying plow is fixedly connected to a mounting box, and the inside of the mounting box is fixedly connected to a mounting partition. The motor is installed inside the mounting partition, and the motor, the pinion, and the gear are all installed inside the mounting box.

[0019] As a further description of the above technical solution:

[0020] A protective box is fixedly connected to the top of the mounting box, and the movable box is fixedly connected inside the protective box;

[0021] As a further description of the above technical solution:

[0022] The movable box has two round rods fixedly connected inside, and the two moving blocks are slidably connected inside the round rods.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the rotating shaft is driven to rotate synchronously by the cooperation of a motor, a small gear and a large gear. The rotation of the rotating shaft can directly drive the burying knife to achieve precise angle fine adjustment, which can quickly adapt to different seabed terrain features, such as slopes, protrusions and depressions. This ensures that during temporary adjustment, the burying knife can avoid rigid contact with hard seabed rock layers, reefs and other obstacles, which could cause jamming and damage.

[0025] 2. In this utility model, the cable can be clamped and fixed by the cooperation of electric push rod, crossbar and connecting rod, moving block and clamp, etc. This not only effectively limits the swaying of the cable during the laying process and avoids the insulation layer damage caused by friction on the cable surface, but also ensures the transmission performance and service life of the cable. Moreover, the clamping distance of the clamp can be flexibly adjusted by the displacement of the moving block, which can adapt to cables of different diameters and specifications. There is no need to re-adjust the structure for different cables, which improves the versatility and work efficiency of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a device for precisely adjusting the laying angle of submarine cables according to the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the roller of the precision adjustment device for laying submarine cables according to this utility model;

[0028] Figure 3 This is a schematic diagram of the adjustment component of a precision adjustment device for submarine cable laying angle proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the clamping assembly of a precision adjustment device for submarine cable laying angle proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the sand blowing pipe of a device for precisely adjusting the angle of submarine cable laying proposed in this utility model.

[0031] Legend:

[0032] 1. Plow for laying sand; 2. Sand blowing pipe; 3. Mounting box; 4. Motor; 5. Mounting partition; 6. Small gear; 7. Large gear; 8. Shaft; 9. Laying knife; 10. Pressure plate; 11. Roller; 12. Inlet; 13. Limiting groove; 14. Protective box; 15. Moving block; 16. Gripper; 17. Connecting rod; 18. Crossbar; 19. Electric push rod; 20. Movable box; 21. Round rod. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 and Figure 3An embodiment of this utility model provides a device for precisely adjusting the angle of submarine cable laying, comprising a burial plow 1 and a movable box 20. The burial plow 1 serves as the core load-bearing and operational foundation component of the device. An adjustment component is installed on the top of the burial plow 1. The movable box 20 is located on top of the adjustment component. A clamping component is installed inside the movable box 20. A burial knife 9 is installed at the bottom of the burial plow 1. The burial knife 9 can efficiently open up the cable burial channel. A limit groove 13 is opened inside the burial knife 9. An inlet 12 is opened on the top of the burial plow 1. The inlet 12 is rectangular and its width is greater than the outer diameter of the cable.

[0035] The adjustment assembly includes a motor 4, which is a deep-sea servo motor with high torque and excellent waterproof performance. The motor 4 is installed on the top of the burial plow 1. A small gear 6 is fixedly connected to the output end of the motor 4. A large gear 7 is rotatably connected to the top of the burial plow 1. The small gear 6 and the large gear 7 mesh with each other. Through the structural matching of the small gear 6 and the large gear 7, the small gear 6 can make the large gear 7 rotate slowly, so that the angle can be precisely adjusted. A rotating shaft 8 is fixedly connected to the bottom of the large gear 7. The large gear 7 can drive the rotating shaft 8 to rotate. The bottom of the rotating shaft 8 is fixedly connected to the top of the burial cutter 9. By rotating the rotating shaft 8, the angle of the burial cutter 9 can be adjusted. A mounting box 3 is fixedly connected to the top of the burial plow 1. A mounting partition 5 is fixedly connected inside the mounting box 3. The motor 4 is installed inside the mounting partition 5. The motor 4, the small gear 6, and the large gear 7 are all installed inside the mounting box 3. The mounting box 3 is used to protect the motor 4, the small gear 6, and the large gear 7.

[0036] Reference Figure 1 and Figure 4 The clamping assembly includes an electric push rod 19, which is fixedly connected inside the movable box 20. A crossbar 18 is fixedly connected to the output end of the electric push rod 19. Connecting rods 17 are rotatably connected to both sides of the crossbar 18. Two moving blocks 15 are slidably connected inside the movable box 20. When the crossbar 18 reciprocates under the drive of the electric push rod 19, the connecting rods 17 can drive the two moving blocks 15 to move towards or away from each other along the slide rail. The other end of the connecting rod 17 is rotatably connected inside the moving blocks 15. One end of the 5 is fixedly connected to a claw 16. The clamping surface of the claw 16 is arc-shaped and covered with a rubber pad. On the one hand, it can adapt to cables of different thicknesses, and on the other hand, it can increase the friction with the cable surface to ensure stable clamping of the cable. The top of the mounting box 3 is fixedly connected to a protective box 14. The protective box 14 is used to protect the clamping components. The movable box 20 is fixedly connected inside the protective box 14. Two round rods 21 are fixedly connected inside the movable box 20. Both moving blocks 15 are slidably connected inside the round rods 21.

[0037] Reference Figure 1 , Figure 2 and Figure 5 The bottom of the burial plow 1 is fixedly connected to a sand-blowing pipe 2, which is located on the outside of the burial cutter 9. The sand-blowing pipe 2 is made of high-strength wear-resistant steel pipe, and its outer surface is wrapped with an anti-corrosion coating, which can withstand the impact of seabed sediment and the erosion of seawater. During operation, high-pressure airflow is sprayed through the sand-blowing pipe 2 to the seabed surface, which can quickly blow away sand, gravel and other debris on the seabed, forming a seabed burial channel with a width and depth adapted to the cable laying. Rollers 11 are installed on both sides of the burial plow 1, and the rollers 11 are located on both sides of the burial cutter 9. When the device is used for cable laying on the seabed, the roller 11 can contact and roll with the seabed surface. On the one hand, it can support the entire device, and on the other hand, it can reduce the resistance when the device moves on the seabed, so that the device can move smoothly with the laying vessel. The top of the burying knife 9 is rotatably connected to the pressure plate 10. When the cable is put into the device, the pressure plate 10 is pressed down on the cable by the cylinder. At this time, as the device moves, the cable can be laid smoothly in the channel split by the burying knife 9. The pressure plate 10 is located inside the limiting groove 13.

[0038] Working principle: First, when submarine cable operations are required, simply place the burial plow 1 into the seabed, then pass the cable through the inlet 12 and into the limiting groove 13 of the burial cutter 9. A special laying vessel connects to the burial plow 1 and starts the sand blowing pipe 2 to blow away the sand and gravel on the seabed, forming a seabed burial channel. At this time, the burial cutter 9 splits the seabed and lays the cable in the burial channel. Subsequently, the original sea sand will re-bury the cable.

[0039] When angle adjustment is required according to different terrains, simply start motor 4. Motor 4 drives pinion 6 to rotate, pinion 6 drives gear 7 to rotate, gear 7 causes shaft 8 to rotate, shaft 8 drives the burying cutter 9 to make fine angle adjustments. In this way, it can cope with different seabed environments and make temporary angle adjustments, avoiding uneven cable burial depth due to angle errors or problems such as burying cutter jamming.

[0040] Secondly, due to the high pressure on the seabed, cables are prone to swaying when lowered into the sea. In this case, simply activate the electric push rod 19. The electric push rod 19 pushes the crossbar 18 to move, and the crossbar 18 drives the connecting rods 17 on both sides to rotate. The connecting rods 17 pull the moving block 15 towards the center, so that the gripper 16 tightly clamps the submarine cable, effectively avoiding surface friction damage caused by cable swaying. In addition, this device is suitable for cables of different thicknesses, saving readjustment time.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for precisely adjusting the angle of submarine cable laying, comprising a laying plow (1) and a movable box (20), characterized in that: An adjustment component is installed on the top of the burying plow (1), the movable box (20) is located on the top of the adjustment component, a clamping component is installed inside the movable box (20), a burying knife (9) is installed at the bottom of the burying plow (1), a limit groove (13) is opened inside the burying knife (9), and a wire inlet (12) is opened on the top of the burying plow (1). The adjustment assembly includes a motor (4), which is mounted on the top of the burying plow (1). A small gear (6) is fixedly connected to the output end of the motor (4). A large gear (7) is rotatably connected to the top of the burying plow (1). The small gear (6) and the large gear (7) mesh with each other. A rotating shaft (8) is fixedly connected to the bottom of the large gear (7). The bottom of the rotating shaft (8) is fixedly connected to the top of the burying cutter (9).

2. The device for precisely adjusting the angle of submarine cable laying according to claim 1, characterized in that: The clamping assembly includes an electric push rod (19), which is fixedly connected inside the movable box (20). A crossbar (18) is fixedly connected to the output end of the electric push rod (19). Connecting rods (17) are rotatably connected to both sides of the crossbar (18). Two moving blocks (15) are slidably connected inside the movable box (20). The other end of the connecting rod (17) is rotatably connected inside the moving block (15). A gripper (16) is fixedly connected to one end of the moving block (15).

3. The device for precisely adjusting the angle of submarine cable laying according to claim 1, characterized in that: The bottom of the burying plow (1) is fixedly connected to a sand blowing pipe (2), which is located on the outside of the burying knife (9).

4. The device for precisely adjusting the angle of submarine cable laying according to claim 1, characterized in that: Rollers (11) are installed on both sides of the burying plow (1), and the rollers (11) are located on both sides of the burying knife (9).

5. The device for precisely adjusting the angle of submarine cable laying according to claim 1, characterized in that: The top of the embedding knife (9) is rotatably connected to a pressure plate (10), which is located inside the limiting groove (13).

6. The device for precisely adjusting the angle of submarine cable laying according to claim 2, characterized in that: The top of the burying plow (1) is fixedly connected to an installation box (3), and an installation partition (5) is fixedly connected inside the installation box (3). The motor (4) is installed inside the installation partition (5), and the motor (4), the pinion (6) and the gear (7) are all installed inside the installation box (3).

7. The device for precisely adjusting the angle of submarine cable laying according to claim 6, characterized in that: The top of the mounting box (3) is fixedly connected to a protective box (14), and the movable box (20) is fixedly connected inside the protective box (14).

8. The device for precisely adjusting the angle of submarine cable laying according to claim 7, characterized in that: The active box (20) has two round rods (21) fixedly connected inside, and the two moving blocks (15) are slidably connected inside the round rods (21).

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