Submarine cable rear trencher

Abstract

According to the technical scheme, the submarine cable rear trencher is characterized in that the submarine cable rear trencher comprises a shell, and the top face of the shell is connected with a hydraulic mechanism; the mounting plate is connected to one end of a telescopic shaft of the hydraulic mechanism, and a soil breaking wheel is arranged on one side of the mounting plate; the protection assembly is arranged on the bottom surface of the mounting plate and used for protecting a cable, by arranging a mechanical arm, an operator places the trencher into the seabed and conducts trenching operation on the seabed through a ground breaking wheel, and by controlling the mechanical arm, the operator grabs the cable through the mechanical arm and grabs the cable into a protection plate; a cable is protected through a placement groove, the cable leaves the ground and is suspended, the cable is prevented from being damaged during trenching, a telescopic shaft of an electric push rod moves to push a limiting plate to move, the limiting plate is made to be close to the cable in the placement groove, the cable is limited, and the cable is prevented from deviating from the interior of the placement groove in the moving process of the trencher; and the cable protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable laying equipment, and particularly relates to a post-trenching machine for submarine cables. Background Technique

[0002] Submarine cables are in a complex marine environment at the seabed. For example, seabed currents, irregular seabeds, instability of seabed sediments (soils), and operating water depths generate drag forces, lifting buoyancy, scouring and spanning on deep-water submarine cables, thereby reducing the stability of submarine cables at the seabed. External anchoring, falling objects, etc. will cause external mechanical damage to submarine cables, and the direct or indirect losses caused by submarine cables are as high as hundreds of millions of yuan.

[0003] For example, in the Chinese patent with the publication number CN208486302U, a post-trenching machine for submarine cables is proposed. The cable cavity of this component is arranged at the top of the trenching machine body. When laying the submarine cable, the cable can be first laid on the seabed surface, and then the post-trenching machine can be placed on the seabed near the cable by the ship for post-trenching, without laying and burying simultaneously, which greatly improves the cable laying speed. A plurality of detachable rollers are arranged between the two sides of the opening of the cable cavity. When an emergency occurs, the detachable rollers can be opened to take out the cable from them to avoid cable breakage accidents. However, in this solution, during use, the protection effect of the trenching machine on the cable is average, and the protection operation is too cumbersome. Therefore, we propose a post-trenching machine for submarine cables. Summary of the Utility Model

[0004] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide a post-trenching machine for submarine cables to solve the problems mentioned in the background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A post-trenching machine for submarine cables includes: a housing, a hydraulic mechanism is connected to the top surface of the housing; a mounting plate, the mounting plate is connected to one end of the telescopic shaft of the hydraulic mechanism, and a soil-breaking wheel is arranged on one side of the mounting plate; a protection component, the protection component is arranged on the bottom surface of the mounting plate for protecting the cable.

[0007] By adopting the above technical solutions, by setting the protection component, during use, the operator puts the trenching machine into the seabed, the soil-breaking wheel is used to perform trenching operations on the seabed, and the protection component is used to protect the cable laid on the seabed to avoid damage to the cable by the soil-breaking wheel and improve the protection effect of the cable.

[0008] Preferably, the protection component includes: a protection plate connected to one side inside the mounting plate, and a placement groove is formed on the top surface of the protection plate; a robotic arm connected to the inner bottom surface of the housing.

[0009] By adopting the above technical solution, by providing the robotic arm, during trench digging, the operator controls the robotic arm to grab the cable with the robotic arm and lift the cable into the protection plate. The cable is protected by the placement groove, enabling the cable to be suspended above the ground and preventing the cable from being damaged during trench digging. At the same time, when the hydraulic mechanism pushes the mounting plate to move and the earth-breaking wheel approaches the seabed for trench digging, the cable on the protection plate can be placed into the dug trench.

[0010] Preferably, the protection component further includes: a mounting groove formed on the top surface of the protection plate, an electric push rod connected inside the mounting groove, and one end of the telescopic shaft of the electric push rod is connected to a limiting plate, and a limiting groove is formed on the limiting plate.

[0011] By adopting the above technical solution, by providing the electric push rod, the telescopic shaft of the electric push rod moves to drive the limiting plate to move, so that the limiting plate approaches the cable inside the placement groove to limit the cable, preventing the cable from shifting inside the placement groove during the movement of the trench digger and improving the cable protection effect.

[0012] Preferably, a mounting hole is formed on one side of the mounting plate, and a motor is connected inside the mounting hole, and the driving shaft of the motor is connected to one side of the earth-breaking wheel.

[0013] By adopting the above technical solution, by providing the motor, the rotation of the driving shaft of the motor can drive the earth-breaking wheel to rotate, and the seabed is trenched by the rotation of the earth-breaking wheel, improving the trench digging efficiency.

[0014] Preferably, two traveling mechanisms are connected to the bottom surface of the housing.

[0015] By adopting the above technical solution, by providing the traveling mechanisms, the traveling mechanisms provide the traveling power for the housing, eliminating the need for the operator to use a ship to move the trench digger and improving the practicality.

[0016] Preferably, two mounting blocks are connected to the top surface of the housing, and a fixing hole is formed on one side of the mounting block.

[0017] By adopting the above technical solution, by providing the fixing hole, the fixing hole can be connected to the ship's rope, facilitating the operator to recover the trench digger and improving the practicality.

[0018] In summary, the main beneficial effects of the present utility model are as follows:

[0019] By setting up a mechanical arm, when in use, the operator puts the trencher into the seabed, and uses the earth-breaking wheel to dig trenches on the seabed. When digging trenches, the operator controls the mechanical arm to grab the cable through the mechanical arm, grab the cable into the protective plate, and protect the cable through the placement groove, so that the cable is suspended off the ground to avoid damage to the cable during trenching. At the same time, the hydraulic mechanism pushes the mounting plate to move so that the earth-breaking wheel is close to the seabed for trenching, and the cable on the protective plate can be placed in the dug trench. By setting up an electric push rod, the limit plate is pushed by the telescopic shaft of the electric push rod to move, so that the limit plate is close to the cable inside the placement groove, and the cable is limited to avoid the cable from deviating from the inside of the placement groove during the movement of the trencher, thereby improving the cable protection effect.

[0020] By setting a motor, the motor drive shaft can drive the earth-breaking wheel to rotate, and the seabed is dug through the rotation of the earth-breaking wheel to improve the trenching efficiency. By setting a fixed hole, it can be connected with the ship rope through the fixed hole, which is convenient for operators to recover the trencher and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the shell structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the mounting plate structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the protective plate of the utility model;

[0025] Figure numerals: 1. housing; 2. walking mechanism; 3. hydraulic mechanism; 4. mounting plate; 5. protective plate; 6. placement slot; 7. mechanical arm; 8. mounting slot; 9. electric push rod; 10. limit plate; 11. limit slot; 12. earth-breaking wheel; 13. mounting hole; 14. motor; 15. mounting block; 16. fixing hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] refer to Figures 1 - 4, A subsea cable post-trenching machine, including a housing 1. A hydraulic mechanism 3 is connected to the top surface of the housing 1. One end of the telescopic shaft of the hydraulic mechanism 3 is connected to a mounting plate 4. A soil-breaking wheel 12 is arranged on one side of the mounting plate 4. A protection component is arranged on the bottom surface of the mounting plate 4 for protecting the cable. By setting the protection component, during use, the operator places the trenching machine into the seabed, and the soil-breaking wheel 12 is used to perform trenching operations on the seabed. The protection component protects the cable laid on the seabed, avoiding damage to the cable by the soil-breaking wheel 12 and improving the protection effect of the cable. The protection component includes a protection plate 5. The protection plate 5 is connected to the inner side of the mounting plate 4. A placement groove 6 is opened on the top surface of the protection plate 5. A robotic arm 7 is connected to the inner bottom surface of the housing 1. By setting the robotic arm 7, during trenching, the operator controls the robotic arm 7 to grab the cable with the robotic arm 7 and grab the cable into the protection plate 5. The cable is protected by the placement groove 6, realizing that the cable is suspended off the ground, avoiding damage to the cable during trenching. At the same time, when the hydraulic mechanism 3 pushes the mounting plate 4 to move, making the soil-breaking wheel 12 approach the seabed for trenching, the cable on the protection plate 5 can be placed into the dug trench. The protection component also includes a mounting groove 8. The mounting groove 8 is opened on the top surface of the protection plate 5. An electric push rod 9 is connected inside the mounting groove 8. One end of the telescopic shaft of the electric push rod 9 is connected to a limiting plate 10. A limiting groove 11 is opened on the limiting plate 10. By setting the electric push rod 9, the telescopic shaft of the electric push rod 9 moves to push the limiting plate 10 to move, making the limiting plate 10 approach the cable inside the placement groove 6 to limit the cable, avoiding the cable from shifting inside the placement groove 6 during the movement of the trenching machine and improving the protection effect of the cable.

[0028] Refer to Figures 1 - 4 , A mounting hole 13 is opened on one side of the mounting plate 4. A motor 14 is connected inside the mounting hole 13. The drive shaft of the motor 14 is connected to one side of the soil-breaking wheel 12. By setting the motor 14, the rotation of the drive shaft of the motor 14 can drive the soil-breaking wheel 12 to rotate, and the soil-breaking wheel 12 rotates to perform trenching operations on the seabed, improving the trenching efficiency. Two traveling mechanisms 2 are connected to the bottom surface of the housing 1. By setting the traveling mechanisms 2, the traveling mechanisms 2 provide traveling power for the housing 1, eliminating the need for the operator to use a ship to move the trenching machine and improving the practicality. Two mounting blocks 15 are connected to the top surface of the housing 1. A fixing hole 16 is opened on one side of the mounting block 15. By setting the fixing hole 16, the fixing hole 16 can be connected to the ship's rope, facilitating the operator to recover the trenching machine and improving the practicality.

[0029] Working principle: Please refer to Figures 1 - 4As shown, by setting the mechanical arm 7, when in use, the operator puts the trencher into the seabed and uses the earth-breaking wheel 12 to dig a trench on the seabed. When digging the trench, the operator controls the mechanical arm 7 to grab the cable through the mechanical arm 7 and grab the cable into the protective plate 5. The cable is protected by placing the groove 6, so that the cable is suspended off the ground to avoid damage to the cable during trenching. At the same time, the hydraulic mechanism 3 pushes the mounting plate 4 to move, so that the earth-breaking wheel 12 is close to the seabed for trenching, and the cable on the protective plate 5 can be placed into the dug trench. The push rod 9 is driven, and the limit plate 10 is pushed to move by the telescopic shaft of the electric push rod 9, so that the limit plate 10 is close to the cable inside the placement groove 6, and the cable is limited to avoid the cable from deviating from the inside of the placement groove 6 during the movement of the trencher, thereby improving the cable protection effect; by setting the motor 14, the rotation of the driving shaft of the motor 14 can drive the earth-breaking wheel 12 to rotate, and the earth-breaking wheel 12 is rotated to perform trenching operations on the seabed, thereby improving the trenching efficiency; by setting the fixing hole 16, the fixing hole 16 can be connected with the ship rope, which is convenient for the operator to recover the trencher and improves the practicality.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A post-ditching machine for submarine cables, characterized in that, Comprising: A housing (1), to the top surface of which a hydraulic mechanism (3) is connected; A mounting plate (4), which is connected to one end of the telescopic shaft of the hydraulic mechanism (3), and a soil-breaking wheel (12) is arranged on one side of the mounting plate (4); A protection assembly, which is arranged on the bottom surface of the mounting plate (4) and is used for protecting the cable; the protection assembly includes: A protection plate (5), which is connected to one side inside the mounting plate (4), and a placement groove (6) is formed on the top surface of the protection plate (5); A robotic arm (7), which is connected to the inner bottom surface of the housing (1); the protection assembly further includes: A mounting groove (8), which is formed on the top surface of the protection plate (5), an electric push rod (9) is connected inside the mounting groove (8), one end of the telescopic shaft of the electric push rod (9) is connected to a limiting plate (10), and a limiting groove (11) is formed on the limiting plate (10).

2. The post-ditching machine for submarine cable according to claim 1, wherein A mounting hole (13) is formed on one side of the mounting plate (4), a motor (14) is connected inside the mounting hole (13), and the driving shaft of the motor (14) is connected to one side of the soil-breaking wheel (12).

3. The post-ditching machine for submarine cable according to claim 1, wherein Two traveling mechanisms (2) are connected to the bottom surface of the housing (1).

4. The post-ditching machine for submarine cable according to claim 1, characterized in that, Two mounting blocks (15) are connected to the top surface of the housing (1), and a fixing hole (16) is formed on one side of the mounting block (15).

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