A rope-type underwater high-speed cable-releasing device

Abstract

A cable-bundle-type underwater high-speed cable-releasing device belongs to the field of underwater equipment technology. The present invention proposes a cable-bundle-type cable winding and storage solution based on a nested thin-walled tube structure, replacing conventional spool reels. This solution avoids the space occupied by conventional reels, allows the cable to be wound with a minimum bending radius, saves space, and effectively increases cable capacity. Furthermore, the thin-walled tube assembly of the present invention can simultaneously apply axial and radial constraints to the cable, solving the problem of looseness and collapse between axial rope loops and radial rope layers. This provides more comprehensive constraints, a simpler structure, and easier operation, while also meeting the requirement of not damaging the structure or cable during high-speed underwater cable release.

Description

Technical Field

[0001] The invention relates to a rope-bundle 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 through cable storage, tension control, and guidance planning to complete the high-speed and orderly release of cables underwater. 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 methods: internal tap type and external tap type. In the internal tap type cable release method, there is no relative rotation between the structural body and the wound cable. 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 loops. In the existing technology, 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 the problem of spiral loops still exists. It is not suitable for scenarios where the cable capacity is too large, or the cable is tightened by multiple sets of elastic tightening rings, so that the cable is stored in an orderly and tight manner in the cable compartment to avoid the problem of looseness, collapse, twisting and folding of the cable. However, this solution has a complex structure and still has the problem of spiral loops, and is easily damaged during the high-speed cable release process. In the external tap-type cable release method, the structural body and the wound cable rotate relative to each other. During the cable release process, the cable starts to be released from the outermost layer, and there is a problem of looseness and collapse between the axial rope loop and the radial rope layer. In the existing technology, a constant radial pressure is applied to the wound salvage rope through a compression 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 existing technology 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 rope-type underwater high-speed cable-releasing device, comprising:

[0006] Cables;

[0007] The outer cylinder cover has several concentric semicircular grooves of different radii on its inner surface for pressing and fixing the thin-walled tube assembly; the outer ring is evenly distributed 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 for mounting and fixing the thin-walled tube assembly; a number of threaded holes are provided on the outer bottom surface for mounting the end cable guide assembly; a cable 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;

[0009] The thin-walled tube assembly includes nested carbon fiber tubes of different inner diameters. The carbon fiber tubes are installed in corresponding grooves on the inner bottom surface of the outer tube. A radial gap is provided between adjacent carbon fiber tubes for storing single-layer cables. Each carbon fiber tube is provided with a U-shaped groove at a symmetrical position above and below. The U-shaped grooves of several nested carbon fiber tubes form a channel for the cable to pass through, realizing the transition of the cable across layers.

[0010] The end 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 the 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 bottom surface of the outer cylinder, ensure that the U-shaped groove corresponds to the blank space of the bottom groove strip. The cable is tightly wrapped around the outermost carbon fiber tube from the outermost layer. After the cable is fully wrapped, apply adhesive on the surface. After the outermost layer is full, 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. The carbon fiber tube is also installed in the corresponding groove on the bottom surface of the outer cylinder, and the cable is tightly wrapped around the carbon fiber tube and then coated with adhesive. 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. Finally, the other end of the cable comes out from the U-shaped groove and passes through the cable guide horn and the end cable guide assembly at the bottom of the outer cylinder in turn. After the cable is arranged, the outer cylinder cover and the outer cylinder are connected by bolts. The upper end of the thin-walled tube assembly is embedded in the semicircular groove on the inner surface of the outer cylinder cover, and ensure that the U-shaped groove corresponds to the blank space of the inner surface groove strip.

[0012] Furthermore, the radial gap 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 loosely 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 those on the inner surface of the outer cylinder cover; and 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 the number of 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 end 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 diameter of the cable, 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 and 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, 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 is easily twisted and folded to form a spiral loop, thereby reducing the risk of damage to the cable.

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

[0026] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the 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 This is a schematic diagram of the outer cylinder of the present invention;

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

[0031] Figure 5 Schematic diagram of the terminal cable guide assembly of the present invention. DETAILED DESCRIPTION

[0032] In order to better understand the above technical solution, the technical solution of the present invention is described in detail below with reference to 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 solution of the present invention, rather than limitations on the technical solution 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-bundle-type underwater high-speed cable-releasing 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, which are used to compress and fix 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 of different radii are also provided on the inner bottom surface of the outer cylinder 2 for installing and fixing the thin-walled tube assembly 4. The number, shape and size of the grooves are consistent with those on the inner surface of the outer cylinder cover 1. A cable guide bell mouth with a diameter 6 times the diameter of the cable 3 is provided at the bottom center of the outer cylinder 2. Several threaded holes are provided on the outer bottom surface for installing the terminal cable guide assembly 5. Threaded holes are evenly distributed 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. 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 both coated with polyurethane. This braiding 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. A radial gap is provided between adjacent carbon fiber tubes for storing a single layer of cable 3. 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. "U"-shaped grooves are provided at the 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. 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 cable, 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 the cable is tightly wound 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 full, 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. The carbon fiber tube is also installed in the corresponding groove on the inner bottom surface of the outer cylinder 2, and the cable is tightly wound. The cables are tightly wound around a carbon fiber tube and then coated with a water-soluble adhesive. The cables are arranged in this order until the inner diameter of the innermost carbon fiber tube no longer meets the minimum bending radius requirement for the cable. Finally, the other end of the cable is pulled out from the "U"-shaped groove and passed through the cable guide horn at the bottom of the outer tube 2 and the end cable guide assembly 5. After the cable arrangement is completed, the outer tube cover 1 is connected to the outer tube 2 by bolts. 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, ensuring 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 impose axial and radial constraints on the tightly 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 outside 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 rings caused by the internal 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 sinking object at the end. After the innermost layer of cable is released, the second layer of cable is released through the "U"-shaped groove channel, and this order is repeated until the cable is completely released.

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

[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-type underwater high-speed cable-releasing device, characterized in that: include: Cable (3); The outer cylinder cover (1) has a plurality of concentric semicircular grooves of different radii on its inner surface for pressing and fixing the thin-walled tube assembly (4); and through holes are evenly distributed 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); A thin-walled tube assembly (4) includes nested carbon fiber tubes of different inner diameters, the carbon fiber tubes being mounted in corresponding grooves on the inner bottom surface of the outer tube (2), with radial gaps between adjacent carbon fiber tubes for storing a single layer of cable (3); each carbon fiber tube is provided with a U-shaped groove at a symmetrical position above and below, and the U-shaped grooves of the nested carbon fiber tubes form a passage for the cable (3) to pass through, thereby enabling the cable (3) to pass through the 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) is smoothly discharged 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. Tightly wrap it around the carbon fiber tube and then apply adhesive, and 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 (3), and finally, the other end of the cable (3) is 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 turn; after the cable arrangement is completed, the outer tube cover (1) and the outer tube (2) are connected 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 groove on the inner surface.

2. The cable-bundle-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 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-bundle-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-bundle-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-bundle-type underwater high-speed cable-releasing device according to claim 5, characterized in that: The number of sheath strands is twice that of the inner core strands, 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-bundle-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-bundle-type underwater high-speed cable-releasing device according to claim 1, characterized in that: The length of the carbon fiber tube is twice the diameter of the cable (3) greater than the depth of the outer cylinder (2).

9. The cable-bundle-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-bundle-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 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 rhombus gap between the fixed clamping block (51) and the adjusting 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).

Images