Submarine cable turntable structure for submarine cable repair vessel

Abstract

The application relates to the field of submarine cable turntables, and discloses a submarine cable turntable structure of a submarine cable repairing special ship, which comprises a submarine cable turntable, a mobile trolley is installed on the outer side of an annular guide rail, a cable pushing mechanism is installed on the side close to the center of the submarine cable turntable, the cable pushing mechanism comprises a hydraulic cylinder, a hydraulic telescopic rod and a submarine cable clamping ring, a ball sleeve is installed in the inside of the submarine cable clamping ring, universal ball bearings are installed on the inner side of the ball sleeve, a driven gear ring is installed on the outer side of the lower end of the submarine cable turntable, a guide ring is arranged in the inside of the bottom turntable, an embedded groove is arranged on the upper surface of the guide ring, rotating ear plates are installed on the outer side of the embedded groove, and guide rotating wheels are installed in the inside of the rotating ear plates. In the rotating process, rotating bearings are meshed with the driven gear ring on the outer side of the submarine cable turntable to assist the overall rotation of the submarine cable turntable, meanwhile, a plurality of auxiliary gears arranged in an array on the outer side of the submarine cable turntable are meshed with the driven gear ring, and the submarine cable turntable can also be prevented from deviating when rotating.

Description

Technical Field

[0001] This invention relates to the field of submarine cable turntables, specifically to the submarine cable turntable structure of a submarine cable repair vessel. Background Technology

[0002] Submarine cables are cables wrapped in insulating material and laid on the seabed for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Submarine communication cables are mainly used for communication services and are expensive, but offer a high level of security. Submarine power cables are mainly used for underwater transmission of high-power electrical energy and serve the same purpose as underground power cables. Compared with terrestrial cables, submarine cables have several advantages: first, they do not require digging tunnels or using supports, resulting in lower investment and faster construction; second, except for landing sites, most cables are located at a certain depth on the seabed, unaffected by natural environmental factors such as wind and waves or human activities, making them safe, stable, highly resistant to interference, and with good security. Submarine cable laying vessels are equipped with cable pods or trays on the mother ship. Using specialized equipment such as untwisting frames, tensioners, gantry cranes, and underwater burying plows, submarine cables are laid directly on the seabed or buried in the seabed. Submarine cable laying vessels are generally expensive and have a large cable carrying capacity. Furthermore, cable repair requires the cooperation of a large number of vessels with different purposes, such as salvage vessels, transport barges, and tugboats.

[0003] However, when traditional submarine cable turntables on the hull are winding up submarine cables, the turntable rotation is controlled only by the drive mechanism at the bottom of the turntable. Due to the large weight of the submarine cable, the overall rotation of the cable is quite inconvenient. Summary of the Invention

[0004] To address the existing problems, this invention provides a submarine cable turntable structure for a special submarine cable repair vessel. When used in conjunction with this device, it can effectively solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] The submarine cable repair vessel's cable turntable structure includes a cable turntable. An upper worktable is located on the outer side of the upper end of the turntable. An annular guide rail is mounted on the upper surface of the upper worktable. A moving trolley is mounted on the outer side of the annular guide rail. A cable pushing mechanism is mounted on the side of the moving trolley near the center of the cable turntable. The cable pushing mechanism includes a hydraulic cylinder, a hydraulic telescopic rod, and a cable retainer. A ball bearing sleeve is installed inside the cable retainer, and universal balls are installed on the inner side of the ball bearing sleeve. A driven gear ring is mounted on the outer side of the lower end of the cable turntable, and an auxiliary gear is located on the outer side of the driven gear ring. A bottom turntable is located below the cable turntable, and a guide ring is located inside the bottom turntable. An embedded groove is formed on the upper surface of the guide ring, and a rotating ear plate is mounted on the outer side of the embedded groove. A guide wheel is installed inside the rotating ear plate.

[0007] As a further embodiment of the present invention: a guide rail groove is provided on the lower surface of the mobile trolley corresponding to the position of the annular guide rail, an adjusting plate is installed on the side surface of the mobile trolley, and an installation screw is connected between the hydraulic cylinder and the adjusting plate.

[0008] As a further embodiment of the present invention: a gear drive shaft is installed inside the auxiliary gear, a rotating bearing is installed between the outer side of the gear drive shaft and the hull deck, a support frame is installed on the lower surface of the upper worktable, and an installation base is connected between the support frame and the hull deck.

[0009] As a further embodiment of the present invention: a guide groove is provided above the guide ring corresponding to the lower surface of the submarine cable turntable, a drive shaft is installed at the center of the submarine cable turntable, and reinforcing ribs are installed on the side surface of the submarine cable turntable.

[0010] As a further embodiment of the present invention: the universal ball bearing is movably connected to the ball bearing sleeve, the ball bearing sleeve is fixedly connected to the submarine cable retaining ring, and the hydraulic telescopic rod is fixedly connected to the submarine cable retaining ring.

[0011] As a further embodiment of the present invention: the mounting screw is fixedly connected to the hydraulic cylinder, and the mounting screw is engaged with the steering plate.

[0012] As a further embodiment of the present invention: the guide wheel and the rotating ear plate are movably connected by a rotating shaft, and the driven gear ring is meshed with the auxiliary gear.

[0013] As a further embodiment of the present invention: the rotating bearing is fixedly connected to the gear transmission shaft, and the support frame is fixedly connected to the deck through the mounting base.

[0014] As a further embodiment of the present invention: the lower end of the drive shaft and the gear transmission shaft is equipped with a drive mechanism located below the ship's deck.

[0015] As a further embodiment of the present invention: the lower end of the drive shaft and the gear transmission shaft is equipped with a drive mechanism located below the ship's deck.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Multiple guide rings inside the bottom turntable correspond to the guide grooves on the lower surface of the submarine cable turntable. Guide wheels inside the multiple bottom turntables contact the inner wall of the guide grooves. When the submarine cable turntable is moved as a whole, the guide wheels above the bottom turntable roll against the lower surface of the submarine cable turntable to assist in the rotation of the submarine cable turntable.

[0018] 2. By installing a screw to control the angle between the cable pushing mechanism and the directional plate, and repeatedly controlling the extension and retraction of the hydraulic telescopic rod, pressure can be applied to different layers of the submarine cable by controlling the cable shackle. This eliminates the need for manual entry into the cable turntable to control the tight winding of the cable, ensuring that the cables are tightly adjacent when being wound up.

[0019] 3. The hydraulic cylinder controls the extension and retraction of the hydraulic telescopic rod to lock the submarine cable clasp onto the outside of the wound submarine cable. This allows the universal balls inside the ball sleeve to contact the submarine cable. During the winding of the submarine cable, the universal balls can always apply pressure to the cable to ensure close contact between adjacent cables and prevent the cable from loosening during winding, which could lead to subsequent collapse.

[0020] 4. During rotation, the rotating bearing assists the overall rotation of the cable slewing by meshing with the driven gear ring on the outer side of the cable slewing. At the same time, the multiple auxiliary gears arranged in an array on the outer side of the cable slewing mesh with the driven gear ring, which can also prevent the cable slewing from deviating during rotation. Attached Figure Description

[0021] Figure 1 A schematic diagram of the submarine cable turntable structure of a special vessel for submarine cable repair.

[0022] Figure 2 A schematic diagram of the bottom turntable in the submarine cable turntable structure of a special vessel for submarine cable repair.

[0023] Figure 3 Exploded view of the cable turntable structure in the cable turntable of a special vessel for cable repair;

[0024] Figure 4 A cross-sectional view of the cable turntable in the cable turntable structure of a special vessel for cable repair.

[0025] Figure 5 A top-down view of the cable turntable structure on a dedicated submarine cable repair vessel.

[0026] Figure 6 A schematic diagram of the cable pushing mechanism in the cable turntable structure of a special vessel for submarine cable repair.

[0027] In the diagram: 1. Cable turntable; 2. Upper worktable; 3. Circular guide rail; 4. Moving trolley; 5. Winding turntable; 6. Support frame; 7. Reinforcing rib; 8. Driven gear ring; 9. Auxiliary gear; 10. Bottom turntable; 11. Guide ring; 12. Embedded groove; 13. Rotating ear plate; 14. Guide wheel; 101. Guide groove; 102. Drive shaft; 401. Guide rail slot; 402. Directional plate; 403. Hydraulic cylinder; 404. Hydraulic telescopic rod; 405. Cable retainer; 406. Ball sleeve; 407. Universal ball bearing; 408. Mounting screw; 601. Mounting base; 901. Gear drive shaft; 902. Rotating bearing. Detailed Implementation

[0028] The present invention will be further described below with reference to specific inventions. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0029] In the description of this specification, references to terms such as "this embodiment," "some embodiments," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] like Figure 1-6As shown, this embodiment provides a submarine cable turntable structure for a dedicated submarine cable repair vessel, including a submarine cable turntable 1. An upper worktable 2 is provided on the outer side of the upper end of the turntable 1. An annular guide rail 3 is mounted on the upper surface of the upper worktable 2. A moving trolley 4 is mounted on the outer side of the annular guide rail 3. A cable pushing mechanism is mounted on the side of the moving trolley 4 near the center of the submarine cable turntable 1. The cable pushing mechanism includes a hydraulic cylinder 403, a hydraulic telescopic rod 404, and a submarine cable retainer 405. The hydraulic telescopic rod 404 is fixedly connected to the submarine cable retainer 405. A ball sleeve 406 is installed inside the submarine cable retainer 405 and is fixedly connected to the submarine cable retainer 405. A universal ball 407 is installed on the inner side of the ball sleeve 406 and is movably connected to the ball sleeve 406. A driven tooth is installed on the outer side of the lower end of the submarine cable turntable 1. A ring 8 has an auxiliary gear 9 on its outer side, which meshes with the driven gear ring 8. A bottom turntable 10 is located below the cable turntable 1, and a guide ring 11 is located inside the bottom turntable 10. An inner groove 12 is formed on the upper surface of the guide ring 11, and a rotating ear plate 13 is installed on the outer side of the inner groove 12. A guide wheel 14 is installed inside the rotating ear plate 13, and the guide wheel 14 is movably connected to the rotating ear plate 13 through a rotating shaft. A guide rail slot 401 is formed on the lower surface of the moving trolley 4 corresponding to the position of the annular guide rail 3. A steering plate 402 is installed on the side surface of the moving trolley 4. An installation screw 408 is connected between the hydraulic cylinder 403 and the steering plate 402. The installation screw 408 is fixedly connected to the hydraulic cylinder 403 and meshes with the steering plate 402.

[0031] like Figure 2-6 As shown, in this embodiment, a gear drive shaft 901 is installed inside the auxiliary gear 9. A rotating bearing 902 is installed between the outer side of the gear drive shaft 901 and the ship's deck. The rotating bearing 902 is fixedly connected to the gear drive shaft 901. A support frame 6 is installed on the lower surface of the upper worktable 2. The support frame 6 is fixedly connected to the deck through a mounting base 601. The inner diameter of the upper worktable 2 is the same as the outer diameter of the cable turntable 1. A winding turntable 5 is installed at the center of the cable turntable 1. The mounting base 601 is connected between the support frame 6 and the ship's deck. A guide groove 101 is opened above the guide ring 11 corresponding to the lower surface of the cable turntable 1. A drive shaft 102 is installed at the center of the cable turntable 1. The lower end of the drive shaft 102 and the gear drive shaft 901 is located below the ship's deck and a drive mechanism is installed. A reinforcing rib 7 is installed on the side surface of the cable turntable 1.

[0032] The working principle of this invention is as follows: In use, the cable turntable 1 and the upper worktable 2 are integrally arranged above the deck of the ship. The mounting base 601 at the end of the support frame 6 at the lower end of the upper worktable 2 is fixed to the deck. At the same time, the guide groove 101 at the lower end of the cable turntable 1 passes through the installation position above the deck, and the bottom turntable 10 is integrally installed directly below the cable turntable 1. Multiple guide rings 11 provided inside the bottom turntable 10 correspond to the guide grooves 101 on the lower surface of the cable turntable 1. The guide wheels 14 provided inside the multiple bottom turntables 10 are aligned with the guide grooves 101. The guide groove 101 contacts the inner wall of the guide groove 101 below the deck of the ship and is connected to the drive mechanism. The auxiliary gear 9 is engaged with the driven gear ring 8 on the outer side of the lower end of the cable turntable 1. The gear drive shaft 901 at the lower end of the auxiliary gear 9 passes through the installation position on the deck and is fitted with a rotating bearing 902 after the installation position. When the cable turntable 1 is controlled to lay out the cable, the drive mechanism controls the drive shaft 102 and the gear drive shaft 901 to rotate. During the rotation, the auxiliary gear 9 assists the cable rotation by meshing with the driven gear ring 8 on the outer side of the cable turntable 1. The overall rotation of the cable turntable 1, along with the meshing of multiple auxiliary gears 9 and driven gear rings 8 arranged in an array on the outer side of the cable turntable 1, also helps to prevent the cable turntable 1 from shifting during rotation. The guide wheel 14 above the bottom turntable 10 rolls with the lower surface of the cable turntable 1 to assist in its rotation. When winding up the cable, the moving trolley 4 is controlled to move in a circular motion above the annular guide rail 3 using the guide rail slot 401. The hydraulic cylinder 403 controls the extension and retraction of the hydraulic telescopic rod 404 to engage the cable clasp 405 on the outer side of the wound cable, so that the ball bearings... The universal ball bearing 407 inside the sleeve 406 contacts the submarine cable. While the submarine cable is being wound around the outside of the winding turntable 5, the moving trolley 4 is driven to move above the upper worktable 2 in the same direction as the submarine cable winding. During the movement, the hydraulic telescopic rod 404 is simultaneously controlled to retract until the submarine cable is wound up on the same plane. Then, the angle between the cable pushing mechanism and the directional plate 402 is controlled by the screw 408. The above operation is repeated to ensure that the submarine cable is tightly adjacent during winding, avoiding slackness during winding that could lead to subsequent collapse.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A submarine cable turntable structure for a submarine cable repair vessel, comprising a submarine cable turntable (1), characterized in that, An upper worktable (2) is provided on the outer side of the upper end of the submarine cable turntable (1). An annular guide rail (3) is installed on the upper surface of the upper worktable (2). A moving trolley (4) is installed on the outer side of the annular guide rail (3). A cable pushing mechanism is installed on the side of the moving trolley (4) near the center of the submarine cable turntable (1). The cable pushing mechanism includes: a hydraulic cylinder (403), a hydraulic telescopic rod (404), and a submarine cable retainer (405). A ball sleeve (406) is installed inside the submarine cable retainer (405). A universal ball bearing (407) is installed on the inner side. A driven gear ring (8) is installed on the outer side of the lower end of the submarine cable turntable (1). An auxiliary gear (9) is provided on the outer side of the driven gear ring (8). A bottom turntable (10) is provided below the submarine cable turntable (1). A guide ring (11) is provided inside the bottom turntable (10). An embedded groove (12) is opened on the upper surface of the guide ring (11). A rotating ear plate (13) is installed on the outer side of the embedded groove (12). A guide wheel (14) is installed inside the rotating ear plate (13). The lower surface of the mobile trolley (4) is provided with a guide rail slot (401) corresponding to the position of the annular guide rail (3), and a steering plate (402) is installed on the side surface of the mobile trolley (4). A mounting screw (408) is connected between the hydraulic cylinder (403) and the steering plate (402). The auxiliary gear (9) has a gear drive shaft (901) installed inside. A rotating bearing (902) is installed between the outer side of the gear drive shaft (901) and the ship's deck. A support frame (6) is installed on the lower surface of the upper worktable (2). An installation base (601) is connected between the support frame (6) and the ship's deck. A guide groove (101) is provided above the guide ring (11) corresponding to the lower surface of the submarine cable turntable (1). A drive shaft (102) is installed at the center of the submarine cable turntable (1). A reinforcing rib (7) is installed on the side surface of the submarine cable turntable (1). The guide wheel (14) and the rotating ear plate (13) are movably connected by a rotating shaft, and the driven gear ring (8) is meshed with the auxiliary gear (9); The inner diameter of the upper worktable (2) is the same as the outer diameter of the cable turntable (1), and a winding turntable (5) is installed at the center of the cable turntable (1).

2. The submarine cable turntable structure of the submarine cable repair vessel according to claim 1, characterized in that, The universal ball bearing (407) is movably connected to the ball bearing sleeve (406), the ball bearing sleeve (406) is fixedly connected to the submarine cable retainer (405), and the hydraulic telescopic rod (404) is fixedly connected to the submarine cable retainer (405).

3. The submarine cable turntable structure of the submarine cable repair vessel according to claim 1, characterized in that, The mounting screw (408) is fixedly connected to the hydraulic cylinder (403), and the mounting screw (408) is engaged with the steering plate (402).

4. The submarine cable turntable structure of the submarine cable repair vessel according to claim 1, characterized in that, The rotating bearing (902) is fixedly connected to the gear drive shaft (901), and the support frame (6) is fixedly connected to the deck through the mounting base (601).

5. The submarine cable turntable structure of the submarine cable repair vessel according to claim 1, characterized in that, The drive mechanism is installed at the lower end of the drive shaft (102) and the gear transmission shaft (901) below the ship's deck.

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