Cable cluster type underwater high-speed cable laying device

Abstract

The invention discloses a cable cluster type underwater high-speed cable laying device, and belongs to the technical field of underwater equipment. The cable cluster type cable winding storage scheme based on the thin-walled pipe nested structure is provided to replace a conventional reel with a shaft, the situation that a conventional reel occupies the cable storage space is avoided, the cable is wound with the minimum bending radius, the space size is saved, and the cable containing amount is effectively increased. Besides, the thin-walled tube assembly can apply axial and radial constraint to the cable at the same time, the problem of loosening and collapse between an axial rope loop and a radial rope layer is solved, constraint is more comprehensive, the structure is simpler, operation is more convenient, and meanwhile the requirement that the structure and the cable are not damaged during underwater high-speed cable laying can be met.

Description

Technical Field

[0001] The invention relates to a rope-group type underwater high-speed cable-releasing device, belonging to the technical field of underwater equipment. Background Art

[0002] Deep-sea deployment and recovery technology is a technology that achieves underwater payload deployment and recovery by completing high-speed and orderly release of cables underwater through cable storage, tension control, and guidance planning. It is one of the key technologies in the field of underwater equipment technology and is mainly used in scenarios such as underwater robot salvage, underwater detection platform deployment and recovery, and buoy system deployment and recovery.

[0003] The high-speed cable release method plays a decisive role in the convenience and reliability of deep-sea deployment and recovery. Currently, there are two main types of cable high-speed release: the inner tap type and the outer tap type. In the inner tap type cable release method, the structure body and the wound cable have no relative rotation. During the cable release process, the cable starts to be released from the innermost layer, and there are problems such as looseness and collapse between radial rope layers, twisting and folding to produce spiral circles. In the prior art, an elastic coating is used to tighten the cable, and the axial and radial compression forces generated by elastic deformation are used to avoid the problem of cable collapse; this solution is cumbersome to operate, and there is still the problem of spiral circles. It is not suitable for scenes with excessive cable capacity, or the cable is tightened by multiple sets of elastic tightening rings, so that the cable is stored in the cable compartment in an orderly and tight manner to avoid the problem of loose collapse and twisting of the cable. However, this solution has a complex structure and still has the problem of spiral circles, which is easy to be damaged during high-speed cable release. In the external tap-type cable release method, the structural body and the wound cable rotate relative to each other. During the cable releasing process, the cable starts to be released from the outermost layer. There is a problem of looseness and collapse between the axial rope loop and the radial rope layer. In the prior art, a constant radial pressure is applied to the wound salvage rope through a clamping component to avoid the looseness and collapse of the axial rope loop, but the problem of looseness and collapse between the radial rope layers still exists. Summary of the invention

[0004] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art and provide a rope-ball type underwater high-speed cable-releasing device, which can meet the requirements of large-capacity cable storage and high-speed cable-releasing, and avoid the loosening, collapse, twisting and folding between the axial rope loop and the radial rope layer to produce spiral loops during the underwater cable-releasing process.

[0005] The technical solution of the present invention is: a cable group type underwater high-speed cable laying device, comprising:

[0006] Cables;

[0007] The outer cylinder cover has a plurality of concentric semicircular grooves of different radii on the inner surface, which are used to compress and fix the thin-walled tube assembly; the outer ring is evenly provided with through holes for connecting and installing the outer cylinder;

[0008] The outer cylinder also has several concentric semicircular grooves of different radii on the inner bottom surface, which are used to install and fix the thin-walled tube assembly; several threaded holes are set on the outer bottom surface for installing the terminal cable guide assembly; a cable guide bell mouth is set at the center of the bottom; threaded holes are evenly arranged on the upper end surface for connecting and installing the outer cylinder cover;

[0009] The thin-walled tube assembly includes nested carbon fiber tubes of different inner diameters, the carbon fiber tubes are installed in the grooves corresponding to the inner bottom surface of the outer tube, and radial gaps for storing single-layer cables are provided between adjacent carbon fiber tubes; U-shaped grooves are provided at upper and lower symmetrical positions of each carbon fiber tube, and the U-shaped grooves of several nested carbon fiber tubes form a channel for the cable to pass through, so as to realize the transition of the cable across layers;

[0010] The terminal cable guide assembly is installed on the outside of the bottom of the outer drum and is used to straighten the circumference of the released cable;

[0011] When arranging cables, first fix the end of the cable to the bottom of the inner wall of the outer cylinder, install the outermost carbon fiber tube in the groove on the inner bottom surface of the outer cylinder, ensure that the U-shaped groove corresponds to the blank strip of the bottom groove, and tightly wind the cable around the outermost carbon fiber tube from the outermost layer. After the cable is fully wound, apply adhesive on the surface. After the outermost layer is fully arranged, the cable comes out from the U-shaped groove at the upper end of the carbon fiber tube, and continue to install the next layer of carbon fiber tube, which is also installed in the corresponding groove on the inner bottom surface of the outer cylinder, and tightly wind the cable around the carbon fiber tube and apply adhesive again. Arrange the cables in this order until the inner diameter of the innermost carbon fiber tube does not meet the minimum bending radius requirement of the cable, and finally bring the other end of the cable out from the U-shaped groove and pass through the cable guide horn and the terminal cable guide assembly at the bottom of the outer cylinder in turn. After the cable is arranged, connect the outer cylinder cover to the outer cylinder by bolts, and embed the upper end of the thin-walled tube assembly into the semicircular groove on the inner surface of the outer cylinder cover, and ensure that the U-shaped groove corresponds to the blank strip of the inner surface groove.

[0012] Furthermore, the radial clearance between adjacent grooves on the inner surface of the outer cylinder cover is 1.06 to 1.2 times the diameter of the cable, and the width of the blank space between two semicircular grooves of the same radius is 2.5 times the diameter of the cable.

[0013] Furthermore, the width of the groove on the inner surface of the outer tube cover is matched with the thickness of the carbon fiber tube in the thin-walled tube assembly, and the depth of the groove is the diameter of the cable.

[0014] Furthermore, the number, shape and size of the semicircular grooves on the inner bottom surface of the outer cylinder are consistent with the inner surface of the outer cylinder cover; the diameter of the cable outlet guide bell mouth is 6 times the diameter of the cable 3.

[0015] Furthermore, the cable is an ultra-high molecular weight polyethylene fiber composite cable, including a two-layer structure of an inner core and a sheath.

[0016] Furthermore, the number of strands in the sheath is twice that of the strands in the inner core, the thickness of the sheath is 0.1 times the diameter of the cable, and the surfaces of the inner core and the sheath are both coated with a polyurethane coating.

[0017] Furthermore, the inner diameter of the carbon fiber tube corresponds to the radius of the groove on the inner surface of the outer tube cover, the radial gap between adjacent carbon fiber tubes is 1.06 to 1.2 times the diameter of the cable, and the wall thickness of the carbon fiber tube is 0.05 times the diameter of the cable.

[0018] Furthermore, the length of the carbon fiber tube is greater than the depth of the outer tube by 2 times the cable diameter.

[0019] Furthermore, the diameter of the U-shaped groove is 1.6 times the diameter of the cable, and the height is the diameter of the cable.

[0020] Furthermore, the terminal cable guide assembly includes a fixed clamping block, an adjustable clamping block, a fixing bolt, and an adjusting bolt; the fixed clamping block is fixed to the outside of the bottom of the outer tube by two fixing bolts, and the adjusting clamping block is connected to the fixed clamping block by two adjusting bolts; both the fixed clamping block and the adjusting clamping block are made of polyketone material, and titanium alloy screw sleeves are embedded in the threaded holes; according to the cable diameter, the size of the diamond gap between the fixed clamping block and the adjusting clamping block is adjusted by the adjusting bolt to ensure that the diamond gap is slightly smaller than the cable diameter.

[0021] The advantages of the present invention compared with the prior art are:

[0022] (1) The present invention proposes a cable winding storage solution based on a thin-walled tube nested structure to replace the conventional spool reel, thereby avoiding the occupation of the cable storage space by the conventional reel, achieving cable winding with a minimum bending radius, saving space volume, and effectively increasing the cable capacity.

[0023] (2) The thin-walled tube assembly of the present invention can simultaneously impose axial and radial constraints on the cable, thereby solving the problem of looseness and collapse between the axial rope loop and the radial rope layer. The constraints are more comprehensive, the structure is simpler, and the operation is more convenient. At the same time, it can meet the requirement of not damaging the structure and the cable during high-speed underwater cable release.

[0024] (3) The end cable guide assembly of the present invention can complete the circumferential constraint of the cable by adjusting the gap of the cable guide opening. Under the premise of not damaging the cable, it effectively solves the problem that the inner tap-type cable release is easy to twist and bend to form a spiral circle, thereby reducing the risk of damage to the cable.

[0025] (4) The cable-laying scheme from outside to inside in a rope-shaped manner proposed in the present invention effectively avoids the problem of the cable being easily loosened and falling off during the tension-free cable-laying process, and can improve the efficiency and quality of the cable-laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of the cable releasing device of the present invention;

[0028] Figure 2 This is a schematic diagram of the outer cylinder cover of the present invention;

[0029] Figure 3 It is a schematic diagram of the outer cylinder of the present invention;

[0030] Figure 4 A schematic diagram of a thin-walled tube assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the terminal cable guide assembly of the present invention. DETAILED DESCRIPTION

[0032] In order to better understand the above technical scheme, the technical scheme of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical scheme of the present invention, rather than limitations on the technical scheme of the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0033] The following is a further detailed description of a cable group type underwater high-speed cable laying device provided by an embodiment of the present invention in conjunction with the accompanying drawings. Figure 1 The specific implementation method may include: an outer cylinder cover 1, an outer cylinder 2, a cable 3, a thin-walled tube assembly 4, and an end cable guide assembly 5.

[0034] like Figure 2 As shown, the inner surface of the outer cylinder cover 1 is provided with a series of concentric semicircular grooves of different radii for pressing and fixing the thin-walled tube assembly 4, the radial clearance between adjacent grooves is 1.06 to 1.2 times the diameter of the cable 3, the width of the blank space between two semicircular grooves of the same radius is 2.5 times the diameter of the cable 3, the groove width is matched with the thickness clearance of the carbon fiber tube in the thin-walled tube assembly 4, and the groove depth is the diameter of the cable 3; through holes are evenly distributed on the outer ring of the outer cylinder cover 1 for connecting and installing the outer cylinder 2.

[0035] A series of concentric semicircular grooves with different radii are also arranged on the inner bottom surface of the outer cylinder 2 for installing and fixing the thin-walled tube assembly 4, and the number, shape and size of the grooves are consistent with the inner surface of the outer cylinder cover 1; a cable outlet guide bell mouth with a diameter 6 times the diameter of the cable 3 is arranged at the bottom center of the outer cylinder 2; a plurality of threaded holes are arranged on the outer bottom surface for installing the terminal cable guide assembly 5; threaded holes are evenly arranged on the upper end surface for connecting and installing the outer cylinder cover 1.

[0036] Cable 3 is an ultra-high molecular weight polyethylene fiber composite cable, including an inner core and a sheath two-layer structure. The number of sheath strands is twice the number of inner core strands, and the sheath thickness is 0.1 times the diameter of cable 3. The inner core and sheath surfaces are coated with polyurethane coating. This weaving scheme can effectively improve the wear resistance of the cable without increasing the minimum bending radius of the cable.

[0037] like Figure 3 , 4 As shown, the thin-walled tube assembly 4 is composed of a series of nested carbon fiber tubes with different inner diameters, the inner diameter of the carbon fiber tube is consistent with the radius of the groove on the inner surface of the outer tube cover 1, and a radial gap for storing a single-layer cable 3 is provided between adjacent carbon fiber tubes, and the radial gap is 1.06 to 1.2 times the diameter of the cable 3, the wall thickness of the carbon fiber tube is 0.05 times the diameter of the cable 3, the length of the carbon fiber tube is twice the diameter of the cable 3 than the depth of the outer tube 2, and "U"-shaped grooves are provided at upper and lower symmetrical positions of the carbon fiber tubes, the diameter of the "U"-shaped groove is 1.6 times the diameter of the cable 3, and the height is the diameter of the cable 3, and a series of "U"-shaped grooves of nested carbon fiber tubes can form a channel for the cable to pass through, which is used for the cable to transition across layers.

[0038] When arranging the cables, first fix the end of the cable to the bottom of the inner wall of the outer cylinder 2, install the outermost carbon fiber tube in the groove on the inner bottom surface of the outer cylinder 2, ensure that the "U"-shaped groove corresponds to the blank strip of the bottom groove, and tightly wind the cable around the outermost carbon fiber tube from the outermost layer. After the cable is fully wound, apply water-soluble adhesive on the surface. After the outermost layer is fully arranged, the cable will flow out from the "U"-shaped groove at the upper end of the carbon fiber tube, and continue to install the next layer of carbon fiber tubes. The carbon fiber tubes are also installed in the corresponding grooves on the inner bottom surface of the outer cylinder 2, and the cables are tightly wound. Closely wrap it around the carbon fiber tube and then apply water-soluble adhesive. Arrange the cables in this order until the inner diameter of the innermost carbon fiber tube does not meet the minimum bending radius requirement of the cable. Finally, the other end of the cable is smoothly taken out from the "U"-shaped groove and passes through the cable guide bell mouth and the end cable guide assembly 5 at the bottom of the outer tube 2 in sequence. After the cable arrangement is completed, the outer tube cover 1 is connected to the outer tube 2 by bolts, and the upper end of the thin-walled tube assembly 4 is embedded in the semicircular groove on the inner surface of the outer tube cover 1, and it is ensured that the "U"-shaped groove corresponds to the blank strip of the inner surface groove. The thin-walled tube assembly 4 composed of multiple layers of carbon fiber tubes designed according to the cable diameter can simultaneously apply axial and radial constraints to the closely arranged cables, effectively solving the problem of looseness and collapse between the axial rope loops and radial rope layers of the cable.

[0039] like Figure 5 As shown, the end cable guide assembly 5 includes a fixed clamping block 51, an adjusting clamping block 52, a fixing bolt 53, and an adjusting bolt 54; the fixed clamping block 51 is fixed to the outer side of the bottom of the outer tube 2 by two fixing bolts 53, and the adjusting clamping block 52 is connected to the fixed clamping block 51 by two adjusting bolts 54; the fixed clamping block 51 and the adjusting clamping block 52 are both made of polyketone material, and titanium alloy screw sleeves are embedded in the threaded holes; according to the diameter of the cable 3, the size of the diamond gap between the fixed clamping block 51 and the adjusting clamping block 52 can be adjusted by adjusting the bolt 54 to ensure that the diamond gap is slightly smaller than the diameter of the cable 3. When the cable passes through the diamond gap during the release process, the cable can be straightened due to the circumferential constraint, which can effectively solve the problems of twisting and spiral circles caused by the inner tap-type cable release.

[0040] When releasing the cable, the cable is continuously pulled out from the innermost layer under the force of the floating body or sinker at the end. After the innermost layer of cable is released, the second layer of cable begins to be released through the "U"-shaped groove channel, and this sequence is repeated until the cable is completely released.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0042] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A cable-group-type underwater high-speed cable-releasing device, characterized in that: include: Cables (3); The outer cylinder cover (1) has a plurality of concentric semicircular grooves of different radii arranged on its inner surface for pressing and fixing the thin-walled tube assembly (4); and through holes are evenly arranged on the outer ring for connecting and installing the outer cylinder (2); The outer cylinder (2) is also provided with a plurality of concentric semicircular grooves of different radii on the inner bottom surface for mounting and fixing the thin-walled tube assembly (4); a plurality of threaded holes are provided on the outer bottom surface for mounting the end cable guide assembly (5); a cable outlet guide bell mouth is provided at the center of the bottom; and threaded holes are evenly distributed on the upper end surface for connecting and mounting the outer cylinder cover (1); The thin-walled tube assembly (4) comprises nested carbon fiber tubes of different inner diameters, the carbon fiber tubes being mounted in grooves corresponding to the inner bottom surface of the outer tube (2), and radial gaps for storing a single layer of cables (3) being provided between adjacent carbon fiber tubes; each carbon fiber tube is provided with a U-shaped groove at a vertically symmetrical position, and the U-shaped grooves of the nested carbon fiber tubes form a passage for the cables (3) to pass through, thereby achieving the transition of the cables (3) across layers; The terminal cable guide assembly (5) is installed on the outside of the bottom of the outer cylinder (2) and is used to straighten the circumference of the released cable; When arranging the cables, first fix the end of the cable (3) to the bottom of the inner wall of the outer cylinder (2), install the outermost carbon fiber tube in the groove on the inner bottom surface of the outer cylinder (2), ensure that the U-shaped groove corresponds to the blank strip of the bottom groove, and tightly wind the cable (3) around the outermost carbon fiber tube from the outermost layer. After the cable (3) is fully wound, apply adhesive on the surface. After the outermost layer is fully arranged, the cable (3) comes out from the U-shaped groove at the upper end of the carbon fiber tube, and continue to install the next layer of carbon fiber tube. The carbon fiber tube is also installed in the corresponding groove on the inner bottom surface of the outer cylinder (2), and the cable (3) is tightly wound around the outermost carbon fiber tube. The cables are tightly wound around the carbon fiber tube and then coated with adhesive, and the cables are arranged in this order until the inner diameter of the innermost carbon fiber tube does not meet the minimum bending radius requirement of the cable (3). Finally, the other end of the cable (3) is smoothly taken out from the U-shaped groove and sequentially passes through the cable outlet guide bell mouth and the end cable guide assembly (5) at the bottom of the outer tube (2). After the cable arrangement is completed, the outer tube cover (1) is connected to the outer tube (2) by bolts, and the upper end of the thin-walled tube assembly (4) is embedded in the semicircular groove on the inner surface of the outer tube cover (1), and it is ensured that the U-shaped groove corresponds to the blank strip of the inner surface groove.

2. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The radial clearance between adjacent grooves on the inner surface of the outer cylinder cover (1) is 1.06 to 1.2 times the diameter of the cable (3), and the width of the blank space between two semicircular grooves of the same radius is 2.5 times the diameter of the cable (3).

3. The cable-group-type underwater high-speed cable-releasing device according to claim 2, characterized in that: The width of the groove on the inner surface of the outer tube cover (1) is clearance-matched with the thickness of the carbon fiber tube in the thin-walled tube assembly (4), and the depth of the groove is the diameter of the cable (3).

4. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The number, shape and size of the semicircular grooves on the inner bottom surface of the outer cylinder (2) are consistent with those on the inner surface of the outer cylinder cover (1); and the diameter of the cable outlet guide bell mouth is 6 times the diameter of the cable (3).

5. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The cable (3) is an ultra-high molecular weight polyethylene fiber composite cable, comprising a two-layer structure of an inner core and a sheath.

6. The cable-group-type underwater high-speed cable-releasing device according to claim 5, characterized in that: The number of strands in the sheath is twice that of the strands in the inner core, the thickness of the sheath is 0.1 times the diameter of the cable (3), and the surfaces of the inner core and the sheath are both coated with a polyurethane coating.

7. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The inner diameter of the carbon fiber tube corresponds to the radius of the groove on the inner surface of the outer tube cover (1), the radial gap between adjacent carbon fiber tubes is 1.06 to 1.2 times the diameter of the cable (3), and the wall thickness of the carbon fiber tube is 0.05 times the diameter of the cable (3).

8. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The length of the carbon fiber tube is greater than the depth of the outer cylinder (2) by twice the diameter of the cable (3).

9. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The diameter of the U-shaped groove is 1.6 times the diameter of the cable (3), and the height is the diameter of the cable (3).

10. The cable-group-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The terminal cable guide assembly (5) comprises a fixed clamping block (51), an adjustable clamping block (52), a fixed bolt (53), and an adjustable bolt (54); the fixed clamping block (51) is fixed to the outer side of the bottom of the outer tube (2) by two fixed bolts (53), and the adjustable clamping block (52) is connected to the fixed clamping block (51) by two adjusting bolts (54); the fixed clamping block (51) and the adjustable clamping block (52) are both made of polyketone material, and a titanium alloy screw sleeve is embedded in the threaded hole; according to the diameter of the cable (3), the size of the rhombus gap between the fixed clamping block (51) and the adjustable clamping block (52) is adjusted by the adjusting bolt (54) to ensure that the rhombus gap is slightly smaller than the diameter of the cable (3).

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