Submarine cable guiding device for submarine cable laying ship

Abstract

A submarine cable guiding device for a submarine cable laying ship comprises a guiding mechanism arranged on a ship body platform, the guiding mechanism comprises a conveying support movably installed on the ship body platform, the conveying support is provided with a conveying cavity, the top of the longitudinal section of the conveying cavity is arranged in a curve shape, and a plurality of conveying rollers are distributed and installed in the conveying cavity in the curve trend. Two supports are fixedly installed on the conveying support, and compression rollers are rotationally installed in the two supports respectively. The submarine cable is pulled out from the wire coil, penetrates into the conveying cavity from one side of the conveying support and is placed on the conveying rollers, the pressing rollers press and cover the submarine cable from the upper portion, and when the cable is laid and the conveying rollers distributed in a curve mode guide the submarine cable, the submarine cable is straightened through a large-span gentle slope, so that torsion is eliminated, the coiled submarine cable is loosened, and laying of the submarine cable is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to submarine cable laying equipment, in particular to a submarine cable guiding device for a submarine cable laying ship. Background Art

[0002] Submarine cables are cables wrapped in insulating material and laid on the seabed for telecommunications transmission. Submarine cables are categorized as submarine communications cables and submarine power cables. Conventional submarine communications cables use optical fiber to transmit telephone and internet signals. Because optical fiber cables are brittle and easily broken, the entire submarine cable must have a turning radius of at least 2.5 meters during transportation and installation.

[0003] When submarine cables leave the factory, they are usually coiled into a circle inside a dedicated 12m×4m×2m elliptical steel structure frame, which creates a large torque. When they are laid on a submarine cable laying vessel, due to the laying site conditions and space limitations, the commonly used cable traction method cannot meet the requirements of installation and construction. It can neither eliminate the large torque of the submarine cable itself, nor can it be straightened after being stretched and unfolded. The slackness cannot meet the requirements, and it cannot be laid smoothly into the reserved submarine cable trench. Utility Model Content

[0004] The utility model provides a submarine cable guiding device for a submarine cable laying vessel, which aims to solve the technical problems in the background technology that the existing cable traction method cannot eliminate the large torsional force of the submarine cable itself and cannot be smoothly laid into a reserved submarine cable trench.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a submarine cable guiding device for a submarine cable laying vessel, comprising a guiding mechanism disposed on a hull platform; the guiding mechanism comprises a conveying bracket movably mounted on the hull platform, the conveying bracket defining a conveying cavity having a curved top in a longitudinal cross-section, a plurality of conveying rollers distributed along the curve within the conveying cavity, two brackets fixedly mounted on the conveying bracket, each of the brackets having a rotatable pressure roller. Thus, when laying the submarine cable, the submarine cable is pulled from the reel, passed through the conveying cavity from one side of the conveying bracket, and placed on the conveying rollers, which press the submarine cable from above. During cable laying, the curved conveying rollers straighten the submarine cable through a large-span gentle slope while guiding the submarine cable, thereby eliminating torsion, loosening the coiled submarine cable, and facilitating cable laying.

[0006] Preferably, in order to facilitate wire laying, the top curve of the cross section of the conveying cavity is arranged to gradually decrease in height from one end to the other, and the two brackets are respectively arranged at the higher end and the lower end of the conveying cavity, so as to facilitate wire feeding and reduce the difficulty of conveying.

[0007] Preferably, in order to adjust the pay-off spacing, a lifting cavity is provided on the bracket, lifting blocks adapted to the lifting cavity are rotatably mounted on both ends of the pressure roller, the lifting blocks are slidably mounted in the lifting cavity, a support plate is fixedly mounted on the bracket, an arch frame inserted into the lifting cavity is slidably mounted on the bracket, the two ends of the arch frame are fixedly connected to the lifting blocks, a screw rod penetrating the arch frame and threadedly connected to the arch frame is rotatably mounted on the support plate, and a rotary handle is fixedly mounted at the end of the screw rod. In this way, the pressure-covering size can be adjusted according to the diameter of the cable, which is convenient for adjustment and adapts to the laying of various types of submarine cables.

[0008] Preferably, in order to adjust the pay-out position, the guide device further includes a moving mechanism comprising a traction trolley slidably mounted on the hull platform, a turntable fixedly mounted on the traction trolley, a mounting plate fixedly mounted on the turntable, and a mounting plate fixedly mounted on the bottom of the delivery bracket. This ensures that the submarine cable can be laid straight into the ocean under various installation conditions and avoids cable distortion.

[0009] Preferably, in order to determine the movement trajectory, a T-shaped guide rail is fixedly mounted on the hull platform, and a guide sleeve is fixedly mounted on the bottom of the tractor trolley and sleeved on the guide rail. The guide sleeve is slidably mounted on the guide rail. This determines the movement trajectory of the tractor trolley, prevents deviation, and ensures stability and reliability.

[0010] Preferably, in order to prevent the trolley from falling off, a baffle arranged at the end of the guide rail is fixedly installed on the hull platform, thereby preventing the trolley from falling off and improving safety.

[0011] The guiding device pulls the submarine cable from the reel, passes it into the conveying cavity from one side of the conveying bracket and places it on the conveying roller. The pressure roller presses the submarine cable from above. When laying the cable, the curved conveying roller straightens the submarine cable through a large-span gentle slope when guiding the submarine cable, thereby eliminating torsion, loosening the coiled submarine cable and facilitating the laying of the submarine cable.

[0012] The guide device starts the traction trolley, driving the conveying bracket on the traction trolley to move horizontally on the hull platform, thereby adjusting the laying position. By starting the turntable, the turntable drives the conveying bracket on the installation disk to make fine adjustments in angle to ensure that the submarine cable can be laid straight into the ocean under different installation environments to avoid twisting the submarine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front structure of a submarine cable guide device used in a submarine cable laying vessel;

[0014] Figure 2 This is a schematic diagram of the back structure of a submarine cable guide device used in a submarine cable laying ship;

[0015] Figure 3 This is a schematic cross-sectional view of a submarine cable guide device for a submarine cable laying vessel;

[0016] Figure 4 The present invention is a schematic diagram of the cross-sectional structure of a submarine cable guiding device used in a submarine cable laying ship.

[0017] In the picture:

[0018] 1. Hull platform; 2. Guide mechanism; 21. Conveying bracket; 22. Conveying chamber; 23. Conveying roller; 24. Bracket; 25. Pressing roller; 26. Lifting chamber; 27. Lifting block; 28. Support plate; 29. ​​Arch; 210. Screw; 211. Turning handle; 3. Moving mechanism; 31. Towing trolley; 32. Turntable; 33. Mounting plate; 34. Guide rail; 35. Guide sleeve; 36. Baffle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] This embodiment provides a submarine cable guiding device for a submarine cable laying ship, such as Figure 1-4 As shown, the guide device includes a guide mechanism 2 arranged on a hull platform 1:

[0022] The guide mechanism 2 includes a conveying bracket 21 movably mounted on the hull platform 1. A conveying cavity 22 with a curved top in the longitudinal section is provided on the conveying bracket 21. A plurality of conveying rollers 23 are distributed along the curved direction in the conveying cavity 22. Two brackets 24 are fixedly mounted on the conveying bracket 21, and a pressure roller 25 is rotatably mounted in each of the two brackets 24.

[0023] When in use, the submarine cable is pulled out from the reel, passed through the conveying cavity 22 from one side of the conveying bracket 21 and placed on the conveying roller 23. The pressure roller 25 presses the submarine cable from above. When laying the cable, the curved conveying roller 23 straightens the submarine cable through a large span and gentle slope when guiding the submarine cable, thereby eliminating torsion, loosening the coiled submarine cable, and facilitating the laying of the submarine cable.

[0024] Specifically, the top curve of the conveying cavity 22 in a longitudinal cross-section is arranged to gradually decrease in height from one end to the other, and two brackets 24 are respectively provided at the higher and lower ends of the conveying cavity 22. During use, the submarine cable is conveyed from the conveying roller 23 at the higher end to the conveying roller 23 at the lower end and then guided into the ocean, facilitating cable delivery and reducing the difficulty of delivery.

[0025] More specifically, a lifting chamber 26 is provided on the bracket 24, and lifting blocks 27 that are compatible with the lifting chamber 26 are rotatably installed at both ends of the pressure roller 25. The lifting blocks 27 are slidably installed in the lifting chamber 26. A support plate 28 is fixedly installed on the bracket 24, and an arch frame 29 that is inserted into the lifting chamber 26 is slidably installed on the bracket 24. Both ends of the arch frame 29 are fixedly connected to the lifting blocks 27. A screw rod 210 that passes through the arch frame 29 and is threadedly connected to the arch frame 29 is rotatably installed on the support plate 28, and a handle 211 is fixedly installed at the end of the screw rod 210. During use, the handle 211 is turned, and the handle 211 drives the screw 210 to rotate, and the screw 210 drives the threaded arch 29 to drive the lifting block 27 to move up and down in the lifting cavity 26 in the bracket 24, thereby driving the pressure roller 25 rotatably connected to the lifting block 27 to move up and down on the bracket 24, thereby adjusting the vertical distance between the pressure roller 25 and the conveying roller 23, thereby adjusting the covering size according to the diameter of the cable, which is convenient for adjustment and adaptable to the laying of various types of submarine cables.

[0026] Example 2

[0027] Unlike Example 1, the guide position needs to be adjusted when laying the submarine cable. To this end, the guide device also includes a moving mechanism 3, which includes a traction trolley 31 slidably mounted on the hull platform 1. The traction trolley 31 is fixedly mounted with a turntable 32, and the turntable 32 is fixedly mounted with a mounting plate 33. The mounting plate 33 is fixedly mounted on the bottom of the conveying bracket 21. During use, the traction trolley 31 is pushed to drive the conveying bracket 21 on the traction trolley 31 to move horizontally on the hull platform 1, thereby adjusting the laying position. The turntable 32 is pushed, and the turntable 32 drives the conveying bracket 21 on the mounting plate 33 to make fine adjustments in angle, so as to ensure that the submarine cable can be laid straight into the ocean under different installation environments and avoid twisting the submarine cable.

[0028] Specifically, a T-shaped guide rail 34 is fixedly mounted on the hull platform 1, and a guide sleeve 35 is fixedly mounted on the bottom of the traction trolley 31 and sleeved on the guide rail 34. The guide sleeve 35 is slidably mounted on the guide rail 34. When in use, the traction trolley 31 moves on the guide rail 34 through the guide sleeve 35 at the bottom, thereby determining the movement trajectory of the traction trolley 31, preventing deviation, and ensuring stability and reliability.

[0029] More specifically, a baffle 36 arranged at the end of the guide rail 34 is fixedly installed on the hull platform 1. During use, when the traction trolley 31 moves to the edge of the guide rail 34, it will be blocked by the baffle 36, thereby preventing the traction trolley 31 from breaking away and improving safety.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A submarine cable guiding device for a submarine cable laying vessel, comprising a guiding mechanism (2) arranged on a hull platform (1), characterized in that: The guide mechanism (2) comprises a conveying bracket (21) movably mounted on the hull platform (1); a conveying cavity (22) with a top in a curved shape in a longitudinal section is provided on the conveying bracket (21); a plurality of conveying rollers (23) are distributed and installed in the conveying cavity (22) along the curved direction; two brackets (24) are fixedly mounted on the conveying bracket (21); and a pressure roller (25) is rotatably mounted in each of the two brackets (24).

2. A submarine cable guiding device for a submarine cable laying vessel according to claim 1, characterized in that: The top curve of the conveying cavity (22) in the longitudinal section is arranged to gradually decrease in height from one end to the other end, and the two brackets (24) are respectively arranged at the higher end and the lower end of the conveying cavity (22).

3. The submarine cable guiding device for a submarine cable laying vessel according to claim 1, characterized in that: The bracket (24) is provided with a lifting chamber (26), and lifting blocks (27) adapted to the lifting chamber (26) are rotatably mounted on both ends of the pressure roller (25), and the lifting blocks (27) are slidably mounted in the lifting chamber (26). A support plate (28) is fixedly mounted on the bracket (24), and an arch frame (29) inserted into the lifting chamber (26) is slidably mounted on the bracket (24), and both ends of the arch frame (29) are fixedly connected to the lifting blocks (27). A screw rod (210) penetrating the arch frame (29) and threadedly connected to the arch frame (29) is rotatably mounted on the support plate (28), and a rotary handle (211) is fixedly mounted at the end of the screw rod (210).

4. The submarine cable guiding device for a submarine cable laying vessel according to claim 1, characterized in that: The guide device further comprises a moving mechanism (3), the moving mechanism (3) comprising a traction trolley (31) slidably mounted on the hull platform (1), a turntable (32) fixedly mounted on the traction trolley (31), a mounting plate (33) fixedly mounted on the turntable (32), and the mounting plate (33) fixedly mounted on the bottom of the conveying bracket (21).

5. The submarine cable guiding device for a submarine cable laying vessel according to claim 4, characterized in that: A T-shaped guide rail (34) is fixedly mounted on the hull platform (1), and a guide sleeve (35) sleeved on the guide rail (34) is fixedly mounted on the bottom of the traction trolley (31), and the guide sleeve (35) is slidably mounted on the guide rail (34).

6. A submarine cable guiding device for a submarine cable laying vessel according to claim 5, characterized in that: A baffle (36) arranged at the end of the guide rail (34) is fixedly mounted on the hull platform (1).

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