Cable turntable and submarine cable laying ship with same

Abstract

The utility model provides a cable rotating disc and a submarine cable laying ship with the same, and the cable rotating disc comprises a pedestal, the center of which is provided with a cylinder; the winding and unwinding disc is rotationally connected to the cylinder in a sleeving mode, and one end of a cable is wound around the winding and unwinding disc; the lifting driving assembly comprises a first sliding block which is arranged on the cylinder in a sliding manner; one end of the crimping limiting frame is fixed on the first sliding block; and the second sliding block is installed in the crimping limiting frame in a sliding mode, a through hole is formed in the second sliding block, and the other end of the cable is arranged in the through hole in a penetrating mode. According to the utility model, the lower end of the crimping limiting frame can be always kept to abut against the multi-layer or single-layer cable; and meanwhile, the second sliding block can move inwards and outwards in a reciprocating mode in the cable winding and unwinding process, stable winding and unwinding of the cable are kept, the problems that the cable is prone to loosening, scattering, winding and the like in the winding and unwinding process are effectively solved, and the laying stability of the submarine cable is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable turntable technology, specifically to a cable turntable and a submarine cable laying vessel having the same. Background Technology

[0002] During the cable laying process, cable swivels on submarine cable laying vessels automatically control the rotation speed to maintain the stability of the cable and monitor and adjust its tension. This effectively prevents damage to the cable due to abrasion, water erosion, and other factors. It is a crucial piece of equipment ensuring the smooth progress of submarine cable laying operations and provides strong support for the development of marine telecommunications, data communications, and oil extraction. The core function of the cable swivel is to safely and efficiently lay the submarine cable from the laying vessel to the seabed. It is typically installed at the bow or stern of the vessel and, through a series of precisely designed pulley systems and guiding devices, guides the cable smoothly from the ship to the seabed.

[0003] However, when existing cable turntables are used to lay submarine cables, the reciprocating movement of the cables can easily cause them to become loose and scattered. This not only affects the stability and accuracy of the laying process, but also increases the difficulty and time cost of construction to some extent. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a cable turntable and a submarine cable laying vessel with the same, which can solve the problems of loosening, scattering and tangling of submarine cables when the cable turntable is rotating to lay submarine cables in the prior art.

[0005] To achieve the above and other objectives, this utility model is implemented through the following technical solution: As a first aspect, this utility model proposes a cable turntable, including a base with a cylinder at its center; a take-up and release disc, rotatably sleeved on the cylinder, with one end of the cable wound around the take-up and release disc; a lifting drive assembly, including a first slider, slidably disposed on the cylinder; a pressing and limiting frame, one end of which is fixed on the first slider; and a second slider, slidably mounted within the pressing and limiting frame, the second slider having a through hole for passing through the other end of the cable.

[0006] In one embodiment, a limiting groove is formed on the cylinder, and the first slider is slidably engaged in the limiting groove.

[0007] In one embodiment, the lifting drive assembly further includes a threaded rod, one end of which is fixedly connected to the output shaft of the motor, and the other end is rotatably mounted in the limiting slide groove; the first slider is mounted on the threaded rod through the internal thread on its central hole.

[0008] In one embodiment, the lifting drive assembly further includes a limiting slide rail, which is fixedly installed on the inner wall of the pressing limiting frame in the length direction, and the second slider is slidably installed on the limiting slide rail.

[0009] In one embodiment, the take-up and take-down tray is rotatably fitted onto the bottom of the cylinder via a rotation drive assembly.

[0010] In one embodiment, the rotary drive assembly includes a drive gear and a drive gear ring. The drive gear is rotatably mounted on the base and fixedly connected to the output shaft of the built-in motor of the base. The drive gear ring is fixed to the lower end face of the take-up and take-down tray and meshes with the drive gear.

[0011] In one embodiment, the cable turntable further includes a traction drive assembly fixed to the other end of the crimping limit frame.

[0012] In one embodiment, the traction drive assembly includes a connecting seat, a friction drive roller, and a drive motor. The connecting seat is fixed to the other end of the pressing and limiting frame. The friction drive roller is rotatably mounted on the inner wall of the connecting seat. The drive motor is fixedly mounted on the outer wall of the connecting seat, and its output shaft is fixedly connected to one end of the friction drive roller.

[0013] In one embodiment, the four friction drive rollers are arranged symmetrically in an upper and lower configuration, such that the other end of the cable is attached between the upper and lower rows of friction drive rollers.

[0014] As a second aspect, this utility model proposes a submarine cable laying vessel, including a cable turntable as described in the first aspect.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the design of a first slider, a crimping limiting frame, and a second slider, enables the first slider to drive the crimping limiting frame, the second slider, and one end of the cable to rise and fall on the cylinder, ensuring that the lower end of the crimping limiting frame always abuts against the multi-layer or single-layer cable; simultaneously, it allows the second slider to move reciprocally inward and outward during the cable winding and unwinding process, maintaining stable cable winding and unwinding, effectively avoiding problems such as loosening, scattering, and tangling of the cable during winding and unwinding, and improving the stability of submarine cable laying;

[0017] 2. This utility model, through the design of a limiting groove, can restrict the vertical movement of the first slider;

[0018] 3. Through the design of the threaded rod and the motor, this utility model enables the first slider to be raised and lowered in a spiral step-by-step manner, thereby improving the stability of the lifting and lowering process;

[0019] 4. The design of the limiting slide rail in this utility model makes the sliding of the second slider within the pressing limiting frame smoother;

[0020] 5. This utility model, through the design of the rotary drive component, can improve the efficiency and flexibility of winding and unwinding cables;

[0021] 6. This utility model, through the design of meshing drive gears and drive gear rings, can realize the control of the rotation speed of the take-up and put-out reel, and improve the stability of the take-up and put-out reel rotation;

[0022] 7. The design of the traction drive component in this utility model can be used in conjunction with the lifting drive component to further ensure the stability and accuracy of the cable during the laying process, avoid tangling and mess, and facilitate the adjustment of the cable position and tension according to actual needs. Attached Figure Description

[0023] Figure 1 The diagram shown is a schematic representation of the overall structure of a cable turntable according to this utility model.

[0024] Figure 2 The diagram shown is an exploded view of a cable turntable according to this utility model;

[0025] Figure 3 The diagram shown is a structural schematic of a rotary drive assembly in a cable turntable according to this utility model.

[0026] Figure 4 The diagram shows the structure of the lifting drive assembly and the traction drive assembly in a cable turntable according to this utility model.

[0027] Reference numerals: 1. Base; 2. Cable; 3. Cylinder; 301. Limiting groove; 4. Retracting tray; 5. Rotary drive assembly; 501. Drive gear; 502. Drive gear ring; 6. Lifting drive assembly; 601. Motor; 602. Threaded rod; 603. Rotary joint; 604. First slider; 605. Pressing limiting frame; 606. Limiting rail; 607. Second slider; 6071. Through hole; 7. Pulling drive assembly; 701. Connecting seat; 702. Friction drive roller; 703. Drive motor. Detailed Implementation

[0028] Please see Figures 1-4 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0029] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0030] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “a,” “an,” or “the,” as used herein, do not indicate a limitation of quantity, but merely indicate the presence of at least one. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The numbering of components in this specification, such as “first,” “second,” etc., is solely for distinguishing the described objects and has no sequential or technical meaning. The term “connection” in this invention, unless otherwise specified, includes both direct and indirect connections.

[0031] To avoid confusion with this utility model, some technical features known in the art have not been described.

[0032] Example 1

[0033] like Figure 1 and Figure 2 As shown, this embodiment provides a cable turntable, including a base 1, a take-up / delivery reel 4, a rotation drive assembly 5, a lifting drive assembly 6, and a traction drive assembly 7. The base 1 has a circular orthographic projection, with a vertically arranged cylinder 3 fixed at its center. A limiting groove 301 is formed on the cylinder 3. The take-up / delivery reel 4 has a circular orthographic projection and is rotatably fitted onto the bottom of the cylinder 3 by the rotation drive assembly 5 for winding and taking up / delivering cables 2. One end of the lifting drive assembly 6 is installed in the limiting groove 301, and the cable 2 passes through the lifting drive assembly 6. The traction drive assembly 7 is fixed to the other end of the lifting drive assembly 6 for tensioning the cable 2.

[0034] Specifically, please combine Figure 2 and Figure 3The rotary drive assembly 5 includes a drive gear 501 and a drive gear ring 502. The drive gear 501 is rotatably mounted on the base 1 and is fixedly connected to the output shaft of the built-in motor of the base 1. The drive gear ring 502 is fixed to the lower end face of the take-up reel 4 and meshes with the drive gear 501. After the built-in motor of the base 1 is started, its output shaft drives the drive gear 501 to rotate. Under the meshing transmission, the drive gear ring 502 rotates in the opposite direction to the rotation of the drive gear 501, thereby driving the take-up reel 4 to rotate smoothly on the cylinder 3, realizing the orderly take-up and put-down of the cable 2. The rotary drive assembly 5 of this solution has the characteristics of compact structure and high transmission efficiency, which can ensure that the take-up reel 4 maintains a stable speed and direction of rotation during rotation, thereby effectively improving the accuracy and efficiency of cable laying.

[0035] Please combine Figure 1 , Figure 2 and Figure 4 As shown, the lifting drive assembly 6 includes a motor 601, a threaded rod 602, a rotary joint 603, a first slider 604, a pressing and limiting frame 605, a limiting slide rail 606, and a second slider 607. The motor 601 is a servo motor, fixed to the top inner wall of the limiting slide groove 301. One end of the threaded rod 602 is fixedly connected to the output shaft of the motor 601, and the other end is rotatably mounted on the bottom inner wall of the limiting slide groove 301 via the rotary joint 603. The first slider 604 is mounted on the threaded rod 602 through the internal thread on its central hole and slidably engaged within the limiting slide groove 301. One end of the crimping limiting frame 605 is fixed to the first slider 604; the limiting slide rail 606 is fixedly installed on the inner wall of the crimping limiting frame 605 along its length; the second slider 607 is slidably installed on the limiting slide rail 606, and a through hole 6071 is opened in the center of the second slider 607. The through hole 6071 is a circular through hole for passing the cable 2 through. When the motor 601 is running, the threaded rod 602 rotates with the output shaft of the motor 601, so that the first slider 604 can slide up and down along the threaded rod 602 in the limiting slide groove 301, thereby driving the crimping limiting frame 605 to rise and fall to adapt to the cable laying requirements of different depths.

[0036] During the winding and unwinding process of the cable 2, the number and height of the layers of the cable 2 continuously change with the length of the winding. By raising and lowering the crimping limiting frame 605, the lower end of the crimping limiting frame 605 can always be kept against the multi-layer or single-layer cable 2, thus accommodating cables 2 of different lengths. Furthermore, the cable 2 passes through the through hole 6071, allowing the second slider 607 to reciprocate inward and outward under the guidance of the limiting slide rail 606 during the winding and unwinding process of the cable 2, maintaining stable winding and unwinding of the cable 2 and effectively preventing the cable 2 from shifting or twisting during the winding and unwinding process.

[0037] like Figure 4 As shown, the traction drive assembly 7 includes a connecting seat 701, a friction drive roller 702, and a drive motor 703. The connecting seat 701 is fixed to the end of the pressing and limiting frame 605 away from the first slider 604. The friction drive roller 702 is rotatably mounted on the inner wall of the connecting seat 701, and four friction drive rollers 702 are arranged symmetrically in a vertical arrangement, so that the cable 2 is attached between the upper and lower rows of friction drive rollers 702. The drive motor 703 is fixedly mounted on the outer wall of the connecting seat 701, and its output shaft is fixedly connected to one end of the friction drive roller 702. When the drive motor 703 is started, its output shaft drives the friction drive roller 702 to rotate. Since the friction drive roller 702 is in close contact with the cable 2, under the action of friction, the traction drive assembly 7 can drive the cable 2 to move along a predetermined path, realizing the cable traction operation.

[0038] Please combine Figures 1-4 When laying submarine cables using this embodiment, the rotary drive assembly 5 allows the take-up reel 4 to rotate flexibly on the cylinder 3, ensuring that the cable 2 always faces the laying direction during the laying process. The lifting drive assembly 6 allows the crimping limiting frame 605 to rise and fall on the cylinder 3 along with the remaining height of the cable 2 on the take-up reel 4, pressing the upper end of the cable 2. Simultaneously, the second slider 604 moves inward and outward in sync with the changes in the take-up and release position of the cable 2, limiting the winding and pulling out of the cable 2, ensuring the stability of the cable 2 during winding and release, and preventing tangling or excessive bending during the winding and release process. The pulling drive assembly 7 can apply appropriate tension to the cable 2 to maintain its tension, ensuring the accuracy and efficiency of cable laying, effectively reducing cable wear and failure rate during the laying process, and ensuring the stability and service life of the submarine cable.

[0039] Example 2

[0040] Based on the same inventive concept as Embodiment 1, this embodiment provides a submarine cable laying vessel, including a cable turntable as described in Embodiment 1, which can be installed at the bow or stern of the vessel, or at other locations required by design.

[0041] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A cable turntable, characterized in that, include The base has a cylinder at its center; A take-up and release reel is rotatably fitted onto the cylinder, and one end of the cable is wound around the take-up and release reel; Lifting drive components, including The first slider is slidably disposed on the cylinder; A pressing and limiting frame is fixed at one end to the first slider; The second slider is slidably installed inside the crimping limit frame. The second slider has a through hole for passing through the other end of the cable.

2. The cable turntable according to claim 1, characterized in that, A limiting groove is provided on the cylinder, and the first slider is slidably engaged in the limiting groove.

3. The cable turntable according to claim 2, characterized in that, The lifting drive assembly also includes a threaded rod, one end of which is fixedly connected to the output shaft of the motor, and the other end is rotatably installed in the limiting slide groove; the first slider is installed on the threaded rod through the internal thread on its central hole.

4. The cable turntable according to claim 1, characterized in that, The lifting drive assembly also includes a limiting slide rail, which is fixedly installed on the inner wall of the pressing limiting frame in the length direction, and the second slider is slidably installed on the limiting slide rail.

5. The cable turntable according to claim 1, characterized in that, The take-up and take-down tray is rotated and fitted onto the bottom of the cylinder via a rotary drive assembly.

6. The cable turntable according to claim 5, characterized in that, The rotary drive assembly includes a drive gear and a drive gear ring. The drive gear is rotatably mounted on the base and fixedly connected to the output shaft of the built-in motor of the base. The drive gear ring is fixed to the lower end face of the take-up and take-down tray and meshes with the drive gear.

7. The cable turntable according to claim 1, characterized in that, It also includes a traction drive assembly, which is fixed to the other end of the press-fit limiting frame.

8. The cable turntable according to claim 7, characterized in that, The traction drive assembly includes a connecting seat, a friction drive roller, and a drive motor. The connecting seat is fixed to the other end of the pressing and limiting frame. The friction drive roller is rotatably mounted on the inner wall of the connecting seat. The drive motor is fixedly mounted on the outer wall of the connecting seat, and its output shaft is fixedly connected to one end of the friction drive roller.

9. The cable turntable according to claim 8, characterized in that, The four friction drive rollers are arranged symmetrically in a vertical arrangement, so that the other end of the cable is attached between the upper and lower rows of friction drive rollers.

10. A submarine cable laying vessel, characterized in that, Includes the cable turntable as described in any one of claims 1 to 9.

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