A cable laying machine with a submarine cable tensioning function and a method of using the same

Abstract

The present application relates to the technical field of cable laying machine, especially to a cable laying machine with submarine cable tensioning function and a use method thereof, comprising a cable laying machine body and an electric telescopic rod, one end of the cable laying machine body is provided with the electric telescopic rod, the upper end of the cable laying machine body is provided with a tensioning wheel set, the outer side of one end of the tensioning wheel set is provided with a limiting assembly, the inside of the tensioning wheel set is provided with a limiting assembly, the upper end of the cable laying machine body is provided with a control pressure wheel set, the inside of the control pressure wheel set is provided with a control pressure wheel set, and the inside of the control pressure wheel set is provided with a flow control assembly, the present application can increase the tension between the sending end and the non-sending end of the submarine cable, improve the stability of the heavy submarine cable traction, protect the normal laying of the submarine cable by the cable laying machine, control the speed during the laying of the submarine cable, effectively prevent the cable from sliding out, and reduce the wear of the device caused by friction when the rotating speed of the oil storage column is controlled, thereby protecting the service life of the device.

Description

Technical Field

[0001] This invention relates to the field of cable laying machine technology, specifically to a cable laying machine with submarine cable tensioning function and its usage method. Background Technology

[0002] Cable tensioning machines are equipment used for laying submarine cables. With offshore infrastructure investment, seabed exploration, and deep-water oilfield development, the marine industrial economy is booming. Submarine fiber optic composite cables play a crucial role as a link for power and communication systems. Intercontinental high-voltage cables and communication optical cables are often laid in ultra-deep water environments at depths of over 3000m. Deep-water fiber optic composite cables often use multi-layer armor and extruded thick PE sheaths to protect functional units. After the design of a deep-sea fiber optic composite cable is completed, high-pressure environment simulation tests are required.

[0003] Because the traction process cannot effectively control the submarine cable, its stability is poor, easily leading to issues such as skipping teeth, slippage, and deviation. This results in insufficient tension in the cable during traction, affecting the traction effect. Furthermore, due to the structural limitations of the cable laying machine, the friction provided by its rollers and braking system is limited, resulting in insufficient braking power. If the tension of the cable at the delivery end becomes uncontrolled and it begins to slip downwards, it can easily lead to production quality accidents if the slippage is not prevented in time. Existing devices address these problems by using a pressing mechanism to press down on the limiting roller to prevent uncontrolled cable tension slippage. While this prevents the cable from slipping randomly, the contact between the pressing mechanism and the rotating roller generates significant friction, causing rapid wear of the pressing mechanism and affecting its service life. Therefore, this paper proposes a cable laying machine with submarine cable tensioning function and its operating method to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a cable laying machine with submarine cable tensioning function and its usage method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A cable laying machine with submarine cable tensioning function and its method of use, comprising a cable laying machine body and an electric telescopic rod, wherein the cable laying machine body is provided with an electric telescopic rod at one end, a tensioning wheel assembly is provided at the upper end of the cable laying machine body, a limiting component is provided on the outer side of one end of the tensioning wheel assembly, a direction limiting component is provided inside the tensioning wheel assembly, a control pressure wheel assembly is provided at the upper end of the cable laying machine body, a control pressure wheel assembly is provided inside the control pressure wheel assembly, a flow control component is provided inside the control pressure wheel assembly, a control device is fixedly connected to one side of the control pressure wheel assembly, the tensioning wheel assembly includes an outer tensioning wheel, a movable hollow column groove is opened on the inner side of the outer tensioning wheel, and a [missing information - likely a typo, should be "outer tensioning wheel"]. The rotating groove has a triangular groove on its inner side, and a beveled tooth is fixedly connected to the inner side of the rotating groove. An internal plate groove is also provided on the inner side of the outer tensioning wheel. The limiting component includes an outer protective frame, with a first spring fixedly connected to the inner side of one end of the outer protective frame. A rubber outer ring is fixedly connected to one side of the outer protective frame, and a rubber hemisphere is fixedly connected to the outer side of the rubber outer ring. The directional limiting component includes a central fixing rod, with a torsion spring fixedly connected to the outer side of the central fixing rod. A central plate is fixedly connected to the outer side of the central fixing rod, and a locking plate is fixedly connected to one side of the torsion spring. An irregular groove is provided on the inner side of the central plate, and a second spring is fixedly connected to one side of the irregular groove. The second spring has a sliding moment plate fixedly connected to one end, a unidirectional toothed block fixedly connected to one side of the sliding moment plate, and a first sphere inside the outer end of the sliding moment plate. The central column rotating rod assembly includes a side-rotating hollow column, a solid sealing groove opened on the inner side of one end of the side-rotating hollow column, a sealing ring fixedly connected to one side of the solid sealing groove, a ball-moving groove opened on the inner side of one end of the side-rotating hollow column, a rod fixedly connected to the inner side of the side-rotating hollow column, and a fixed hollow rod fixedly connected to the outer side of one end of the rod. The control pressure roller assembly includes an oil storage hollow column, a cylindrical oil groove opened on the inner side of the oil storage hollow column, and a central solid hollow connecting rod fixedly connected to the inner side of the cylindrical oil groove through a flow control component. The solid-state connecting rod has movable semi-open slots at both ends, with ball bearings inside the movable semi-open slots. The flow control assembly includes a side-arc rectangular plate, with a sealing silicone ring fixedly connected to one side of the side-arc rectangular plate. An oil flow channel is opened on the inner side of one end of the side-arc rectangular plate, and a flow-limiting concave hole is opened on the inner side of the side-arc rectangular plate. A hollow push column is fixedly connected to one side of the flow-limiting concave hole, and a movable flow-limiting block is fixedly connected to one side of the hollow push column. A silicone ring is fixedly connected to the inner side of the flow-limiting concave hole, and a solid push rod is slidably connected to the inner side of the hollow push column. A sealing silicone ring is fixedly connected to the outer side of one end of the solid push rod, and a silicone ring is fixedly connected to one side of the solid push rod.

[0007] Preferably, an inverted concave slide plate is fixedly connected to one side of the electric telescopic rod. A rotating concave hole is opened on the inner side of one end of the inverted concave slide plate. A limiting groove is opened on the inner side of one end of the cable laying machine body. A conveying end wheel is provided inside one end of the cable laying machine body. The number of conveying end wheels is several. An arc-shaped plate is fixedly connected to the upper end of the cable laying machine body. The arc-shaped plate at the upper end of the cable laying machine body is fixed to the left and right ends of the cable laying machine body. Conveying end wheels are rotatably connected to the outer sides of both ends of the conveying end wheels. The shape of the inverted concave slide plate is an inverted "U" shape. The outer side of the inverted concave slide plate is slidably connected to the inner side of the limiting groove through a limiting block. An arched bracket is fixedly connected to the upper end of the cable laying machine body. The upper end of the electric telescopic rod is fixedly connected to one side of the upper end of the arched bracket at the upper end of the cable laying machine body.

[0008] Preferably, a fixing plate is fixedly connected to the upper end of the cable laying machine body, the inner side of the outer tensioning wheel is rotatably connected to the outer side of the middle fixing rod, the two sides of the middle fixing rod are fixedly connected to one side of the upper end of the cable laying machine body, the outer tensioning wheel is cylindrical in shape, there are two outer tensioning wheels, and a certain distance is provided between the outer tensioning wheels, there are two movable hollow column slots, the movable hollow column slots are hollow cylinders, the movable hollow column slots are opened on the inner side of both ends of the outer tensioning wheel, the rotatable groove is cylindrical in shape, there are two internal plate slots, there are two sets of equilateral triangular slots, the equilateral triangular slots are equilateral triangular in shape, each set of equilateral triangular slots has a certain number of slots, the bevel teeth are right-angled triangular in shape, and the number of bevel teeth is a certain number.

[0009] Preferably, the outer protective frame is a semi-open cylinder, and there are two sets of outer protective frames. One end of the outer protective frame slides inside the movable hollow column groove. There are two sets of each first spring, and each set of the first spring has several springs. One end of the first spring is fixedly connected to the outer sides of both ends of the outer tension wheel. There are two sets of each outer protective frame. The rubber outer ring is fixed between the outer protective frames. The rubber outer ring is a hollow cylinder, and the outer side of the upper end of the outer protective frame fits against the outer protective frame of the lower end.

[0010] Preferably, the central fixing rod is cylindrical, and a cylindrical groove is formed on the inner side of the central plate. The interior of the central plate is fixedly connected to the outer side of the central fixing rod through the cylindrical groove. The unidirectional tooth block is a right-angled triangle, and its outer side meshes with the outer side of the beveled tooth. There are several irregular grooves, and the number of unidirectional tooth blocks is the same as the number of irregular grooves. The outer side of the unidirectional tooth block moves inside the irregular groove. The outer side of the sliding moment plate is slidably connected to the inner side of the irregular groove through a first ball. One side of the second spring is fixedly connected to one side of the irregular groove. The locking plate is attached to the inner side of the triangular locking slot. The irregular groove is a hollow cylinder, and its outer side rotates inside the built-in plate groove. The outer side of the torsion spring is attached to one side of the rotatable groove and one side of the irregular groove.

[0011] Preferably, one side of the fixed hollow rod is fixedly connected to one side of the inverted sliding plate. The fixed hollow rod has the same shape as the side-rotating hollow column. The sealing groove opened on the inner side of one end of the side-rotating hollow column is "L" shaped. One side of the side-rotating hollow column is attached to one side of the central solid hollow connecting rod. One side of the sealing ring is attached to one side of the central solid hollow connecting rod. There are two sets of ball-moving grooves, with two ball-moving grooves in each set. The ball-moving grooves are opened on the inner side of one end of the side-rotating hollow column and the fixed hollow rod. One end of the side-rotating hollow column is movable inside the movable semi-open groove. The shape of the rod body is cylindrical. The outer side of the side-rotating hollow column is connected to the inner side of the control device by a limiting rotating ring.

[0012] Preferably, the control pressure roller assembly is a hollow cylinder, the cylindrical oil groove is a multi-segment cylinder, the cylindrical oil groove is opened through the inside of the oil storage cylinder, the cylindrical oil groove contains hydraulic oil, the movable semi-open groove is partially opened inside both ends of the central solid hollow connecting rod, the movable semi-open groove has an oil ball rotating groove on the inner side, the number of balls is several, the balls rotate in the ball rotating groove inside the movable semi-open groove, and the balls rotate in the ball moving groove.

[0013] Preferably, the side-arc rectangular plate is rectangular in shape, with both its front and rear ends being arc-shaped. One end of the side-arc rectangular plate is fitted to the inner side of the cylindrical oil groove, and one side of the side-arc rectangular plate is fitted to the outer side of the central solid hollow connecting rod. Several sets of sealing silicone rings are included, with two rings in each set. The sealing silicone rings are fixed to both sides of the side-arc rectangular plate. One end of the flow-limiting recess is rectangular in shape and extends through the inner side of the side-arc rectangular plate. Silicone rings are fixedly connected to both ends of the flow-limiting recess. The silicone ring is attached to both ends of the movable flow limiting block on one side. The movable flow limiting block slides inside the flow limiting recess. The inner side of the oil flow channel is connected to the inner side of one end of the hollow pushed column. The hollow pushed column is cylindrical in shape. A through hole is opened on the inner side of one end of the hollow pushed column. The outer side of the sealing silicone ring is attached to the inner side of the cylindrical oil groove. The outer side of the sealing silicone ring is attached to the outer side of the central solid hollow connecting rod, the fixed hollow rod, and the side rotating hollow column. There are several side arc rectangular plates. One side of the flow control component is fixedly connected to the inner side of the cylindrical oil groove.

[0014] Preferably, the control device includes a semi-open empty box, a semi-open control box is fixedly connected to one side of the semi-open empty box, an electric push rod is fixedly connected to the inner side of one end of the semi-open control box, a limit sliding plate is fixedly connected to one side of the electric push rod, a limit sealing plate is fixedly connected to one side of the limit sliding plate, a side pressure flow hole is opened on the inner side of one end of the electric push rod, the number of side pressure flow holes is several, hydraulic oil is provided inside one end of the electric push rod and inside the side of the limit sealing plate, a flow deflector is opened on the inner side of the semi-open empty box, the inner side of the side pressure flow hole communicates with the inner side of the flow deflector, and the inner side of the semi-open empty box is connected to the inner side of the oil flow channel through the flow deflector.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, by using an external tensioning wheel, a rotating groove, a triangular slot, a bevel tooth, a central fixing rod, a torsion spring, a clamping plate, and a single-direction tooth block, the outer side of the submarine cable is clamped by two external tensioning wheels during the laying process. The external tensioning wheels can rotate during laying and control the range of motion of the submarine cable. When the tension at the delivery end is low, the device can increase the tension between the delivery end and the non-delivered end of the submarine cable under the torque of the torsion spring, thereby improving the stability of the submarine cable under heavy traction and protecting the cable laying machine for normal laying of the submarine cable.

[0017] 2. In this invention, by setting up an oil storage column, a central solid-state connecting rod, a side arc rectangular plate, a sealing silicone ring, a hollow pushed column, a movable flow limiting block, a flow limiting recess, a silicone ring, and a semi-open empty box, when the submarine cable slips down, the electric push rod is activated to push the hydraulic oil inside the semi-open control box into the hollow pushed column, thereby controlling the movable flow limiting block to move inside the flow limiting recess. The device can control the speed of submarine cable laying, effectively preventing the laid cable from slipping out. At the same time, when the device controls the rotation speed of the oil storage column, it reduces wear caused by friction, protecting the service life of the device.

[0018] 3. In this invention, the outer protective frame, the first spring, the rubber outer ring, the rubber hemisphere and the movable hollow column groove can prevent the submarine cable from skipping teeth, slipping and deviating during the traction process due to poor stability, increase the friction between the submarine cable and the cable, and prevent damage to the polyethylene outer sheath of the submarine cable during laying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the electric telescopic pole structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the tensioning wheel assembly structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the orientation-limiting component structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the rubber outer ring structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the torsion spring structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the first spring structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the external tensioning wheel structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the disk structure in this invention;

[0028] Figure 10 This is a schematic diagram of the single-phase tooth block structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the control pressure roller assembly structure of the present invention;

[0030] Figure 12 This is a schematic diagram of the column-rotor assembly structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the side-rotating hollow column structure of the present invention;

[0032] Figure 14 For the present invention Figure 13 A schematic diagram of the structure at point A;

[0033] Figure 15 This is a schematic diagram of the solid-state connecting rod structure in this invention;

[0034] Figure 16 This is a schematic diagram of the cylindrical oil tank structure of the present invention;

[0035] Figure 17 This is a schematic diagram of the control device structure of the present invention;

[0036] Figure 18 This is a schematic diagram of the flow control component structure of the present invention;

[0037] Figure 19 This is a schematic diagram of the cross-sectional structure of the hollow push column of the present invention.

[0038] In the diagram: 1. Cable laying machine body; 2. Electric telescopic rod; 21. Inverted concave sliding plate; 22. Rotating concave hole; 23. Limiting groove; 24. Conveying end wheel; 3. Tensioning wheel assembly; 31. Outer tensioning wheel; 32. Movable empty column groove; 33. Easy-rotating groove; 34. Orthogonal three-body slot; 35. Sloping teeth; 36. Internal plate groove; 4. Limiting component; 41. Outer protective frame; 42. First spring; 43. Rubber outer ring; 44. Rubber hemisphere; 5. Directional limiting component; 51. Central fixing rod; 52. Torsion spring; 53. Middle plate; 54. Locking plate; 55. Irregular groove; 56. Second spring; 57. Sliding moment plate; 58. Single-direction tooth block; 59. First sphere; 6. Central column rotating rod assembly; 61. Side rotating empty column; 62. Solid sealing groove; 63. Sealing ring; 64. Ball moving groove; 65. Roller body; 66. Fixed empty roller rod; 7. Control pressure roller assembly; 71. Oil storage empty column; 72. Columnar oil groove; 73. Central solid empty connecting rod; 74. Movable semi-open groove; 75. Ball; 8. Flow control assembly; 81. Side arc rectangular plate; 82. Sealing silicone ring; 83. Oil flow channel; 84. Hollow pushed column; 85. Movable flow limiting block; 86. Flow limiting concave hole; 87. Silicone ring; 88. Solid push roller; 89. Sealing silicone ring; 9. Control device; 91. Semi-open empty box; 92. Semi-open control box; 93. Electric push rod; 94. Limiting circular slide plate; 95. Limiting sealing circular plate; 96. Side pressure flow hole; 97. Baffle channel. Detailed Implementation

[0039] Please see Figure 1-19 The present invention provides a technical solution:

[0040] A cable laying machine with submarine cable tensioning function and its usage method include a cable laying machine body 1 and an electric telescopic rod 2. The cable laying machine body 1 has the electric telescopic rod 2 at one end, a tensioning wheel assembly 3 at the upper end of the cable laying machine body 1, a limiting component 4 on the outer side of one end of the tensioning wheel assembly 3, a direction limiting component 5 inside the tensioning wheel assembly 3, a central column rotating rod assembly 6 at the upper end of the cable laying machine body 1, and a control pressure wheel assembly 7 inside the control pressure wheel assembly 7, which contains a flow control component 8 for controlling the pressure... A control device 9 is fixedly connected to one side of the wheel assembly 7. The tensioning wheel assembly 3 includes an outer tensioning wheel 31, with a movable hollow column groove 32, a rotatable groove 33, and a triangular locking groove 34. A beveled tooth 35 is fixedly connected to the inner side of the rotatable groove 33. An internal plate groove 36 is also fixedly connected to the inner side of the outer tensioning wheel 31. The limiting component 4 includes an outer protective frame 41, with a first spring 42 fixedly connected to the inner side of one end of the outer protective frame 41. A rubber outer ring 43 is fixedly connected to one side of the outer protective frame 41, and a rubber hemisphere 44 is fixedly connected to the outside of the rubber outer ring 43. The directional limiting component 5 includes a central fixing rod 51, a torsion spring 52 is fixedly connected to the outside of the central fixing rod 51, a central plate 53 is fixedly connected to the outside of the central fixing rod 51, a locking plate 54 is fixedly connected to one side of the torsion spring 52, an irregular groove 55 is provided on the inner side of the central plate 53, a second spring 56 is fixedly connected to one side of the irregular groove 55, and a sliding moment body is fixedly connected to one end of the second spring 56. Plate 57, a single-axis toothed block 58 is fixedly connected to one side of the sliding moment plate 57, and a first ball 59 is provided inside the outer end of the sliding moment plate 57. The central column rotating rod assembly 6 includes a side-rotating hollow column 61, a solid sealing groove 62 is opened on the inner side of one end of the side-rotating hollow column 61, a sealing ring 63 is fixedly connected to one side of the solid sealing groove 62, a ball moving groove 64 is opened on the inner side of one end of the side-rotating hollow column 61, a rod body 65 is fixedly connected to the inner side of the side-rotating hollow column 61, and a fixed hollow rod 66 is fixedly connected to the outer side of one end of the rod body 65. The control pressure roller assembly 7 includes an oil storage cylinder 71, with a cylindrical oil groove 72 inside the cylinder 71. A central solid-state connecting rod 73 is fixedly connected to the inner side of the cylindrical oil groove 72 via a flow control assembly 8. Movable semi-open slots 74 are opened at both ends of the central solid-state connecting rod 73, and ball bearings 75 are located inside the movable semi-open slots 74. The flow control assembly 8 includes a side-arc rectangular plate 81, with a sealing silicone ring 82 fixedly connected to one side of the side-arc rectangular plate 81. A flow control mechanism is opened on the inner side of one end of the side-arc rectangular plate 81. Oil passage 83, flow-limiting recess 86 is opened on the inner side of the side arc rectangular plate 81, hollow push column 84 is fixedly connected to one side of flow-limiting recess 86, movable flow-limiting block 85 is fixedly connected to one side of hollow push column 84, silicone ring 87 is fixedly connected to the inner side of flow-limiting recess 86, solid push rod 88 is slidably connected to the inner side of hollow push column 84, sealing silicone ring 89 is fixedly connected to the outer side of one end of solid push rod 88, silicone ring 87 is fixedly connected to one side of solid push rod 88.

[0041] An inverted concave slide plate 21 is fixedly connected to one side of the electric telescopic rod 2. A rotating concave hole 22 is opened on the inner side of one end of the inverted concave slide plate 21. A limiting groove 23 is opened on the inner side of one end of the cable laying machine body 1. A conveying end wheel 24 is provided inside one end of the cable laying machine body 1. There are several conveying end wheels 24. An arc-shaped plate is fixedly connected to the upper end of the cable laying machine body 1. The arc-shaped plate at the upper end of the cable laying machine body 1 is fixed to the left and right ends of the cable laying machine body 1. The conveying end wheels 24 are rotatably connected to the outer sides of both ends of the conveying end wheels 24. The shape of the inverted concave slide plate 21 is an inverted "U" shape. The outer side of the inverted concave slide plate 21 is slidably connected to the inner side of the limiting groove 23 through a limiting block. An arched bracket is fixedly connected to the upper end of the cable laying machine body 1. The upper end of the electric telescopic rod 2 is fixedly connected to the upper end of the arched bracket at the upper end of the cable laying machine body 1. On the side, after the electric telescopic rod 2 is started, the upper control pressure roller group 7 can be moved by the inverted sliding plate 21, thereby limiting the submarine cable with the two control pressure roller groups 7. A fixed plate is fixedly connected to the upper end of the cable laying machine body 1. The inner side of the outer tensioning wheel 31 is rotatably connected to the outer side of the middle fixing rod 51. The two sides of the middle fixing rod 51 are fixedly connected to one side of the upper end of the cable laying machine body 1. The outer tensioning wheel 31 is cylindrical in shape, and there are two outer tensioning wheels 31. There is a certain distance between the outer tensioning wheels 31. There are two movable hollow column grooves 32. The movable hollow column grooves 32 are hollow cylinders and are opened on the inner side of both ends of the outer tensioning wheel 31. The rotatable groove 33 is cylindrical in shape. There are two internal plate grooves 36 and two sets of triangular locking grooves 34. The equilateral triangular groove 34 is shaped like an equilateral triangle, and there are several of each group of equilateral triangular grooves 34. The bevel teeth 35 are shaped like right-angled triangles, and there are several of each bevel teeth 35. Based on the shapes of the bevel teeth 35 and the unidirectional toothed block 58, the outer tensioning wheel 31 can only rotate in one direction. The two outer tensioning wheels 31 are set in opposite directions. The unidirectional toothed block 58 drives the ball 75 to slide inside the irregular groove 55. The inner side of the sliding moment plate 57 grips the rotating first ball 59, which can reduce the friction between the unidirectional toothed block 58 and the sliding moment plate 57 as they move inside the irregular groove 55. The outer protective frame 41 is shaped like a semi-open cylinder, and there are two sets of outer protective frames 41. One end of the outer protective frame 41 slides inside the movable empty column groove 32. There are two sets of each group of first springs 42. Each group of 2 consists of several springs. One end of the first spring 42 is fixedly connected to the outer sides of both ends of the outer tensioning wheel 31. Each group of outer protective frames 41 consists of two springs. Rubber outer rings 43 are fixed between the outer protective frames 41. The rubber outer rings 43 are hollow cylinders. The outer side of the upper outer protective frame 41 fits against the outer side of the lower outer protective frame 41 to prevent damage to the polyethylene outer sheath of the submarine cable. The rubber hemispheres 44 fixedly connected to the outer side of the rubber outer rings 43 can increase the friction with the outer sheath of the submarine cable, thus achieving the effect of stable laying of the submarine cable. The central fixing rod 51 is cylindrical. A cylindrical groove is opened on the inner side of the central plate 53. The interior of the central plate 53 is fixedly connected to the outer side of the central fixing rod 51 through the cylindrical groove. The unidirectional tooth block 58 is a right-angled triangle. The outer side of the unidirectional tooth block 58 meshes with the outer side of the bevel tooth 35.The number of irregular grooves 55 is several, and the number of unidirectional tooth blocks 58 is the same as that of irregular grooves 55. The outer side of the unidirectional tooth blocks 58 moves inside the irregular grooves 55. The outer side of the sliding moment plate 57 is slidably connected to the inner side of the irregular grooves 55 through the first ball 59. One side of the second spring 56 is fixedly connected to one side of the irregular grooves 55. The card plate 54 is attached to the inner side of the triangular card slot 34. The irregular grooves 55 are hollow cylinders. The outer side of the irregular grooves 55 rotates inside the built-in plate slot 36. The outer side of the torsion spring 52 is attached to one side of the rotatable groove 33 and one side of the irregular grooves 55. One side of the fixed hollow rod 66 is fixedly connected to one side of the inverted concave slide plate 21. The fixed hollow rod 66 has the same shape as the side-rotating hollow column 61. The sealing groove 62 opened on the inner side of one end of the side-rotating hollow column 61 is L-shaped. One side of the side-rotating hollow column 61 is attached to one side of the central fixed hollow connecting rod 73. One side of the sealing ring 63 is attached to one side of the central fixed hollow connecting rod 73. There are two sets of ball movement grooves 64, with two in each set. The ball movement grooves 64 are opened on the inner side of one end of the side-rotating hollow column 61 and the fixed hollow rod 66. One end of the side-rotating hollow column 61 is movable inside the movable semi-open groove 74. The rod body 65 is cylindrical in shape. The outer side of the side-rotating hollow column 61 is open. The limit-switching rotating connection is connected to the inner side of the control device 9. Under the elastic force of the second spring 56, the single-axis tooth block 58 is pushed to reset. At the same time, the irregular groove 55 fixed to the outer side of the central fixed roller 51 rotates inside the built-in plate groove 36. The shape of the control pressure roller group 7 is a hollow cylinder. The shape of the cylindrical oil groove 72 is a multi-segment cylinder. The cylindrical oil groove 72 is opened through the inside of the oil storage hollow column 71. The cylindrical oil groove 72 is filled with hydraulic oil. The movable semi-open groove 74 is partially opened inside both ends of the central fixed hollow connecting rod 73. The inner side of the movable semi-open groove 74 is opened with oil ball rotating groove. There are several balls 75. The balls 75 rotate in the movable semi-open groove 74. Inside the spherical groove 4, the ball bearing 75 rotates within the ball bearing groove 64, facilitating the storage of hydraulic oil inside the cylindrical oil groove 72. Simultaneously, it allows control of the rotational speed of the empty oil storage column 71. The side-arc rectangular plate 81 is rectangular in shape, with both its front and rear ends being arc-shaped. One end of the side-arc rectangular plate 81 is attached to the inner side of the cylindrical oil groove 72, and one side is attached to the outer side of the central solid-state connecting rod 73. Several sets of sealing silicone rings 82 are present, with two rings per set. The sealing silicone rings 82 are fixed to both sides of the side-arc rectangular plate 81. One end of the flow-limiting recess 86 is rectangular in shape. One end of the 86 is inserted through the inner side of the side arc rectangular plate 81. A silicone ring 87 is fixedly connected to one side of both ends of the flow-limiting recess 86. One side of the silicone ring 87 is in contact with both ends of the movable flow-limiting block 85. The movable flow-limiting block 85 slides inside the flow-limiting recess 86. The inner side of the oil flow channel 83 is connected to the inner side of one end of the hollow pushed column 84. The hollow pushed column 84 is cylindrical in shape, and a through hole is provided on the inner side of one end of the hollow pushed column 84. The outer side of the sealing silicone ring 82 is in contact with the inner side of the cylindrical oil groove 72. The outer side of the sealing silicone ring 82 is in contact with the outer side of the centrally fixed hollow connecting rod 73, the fixed hollow rod 66, and the side rotating hollow column 61. The number of side arc rectangular plates 81 is several.The flow control component 8 is fixedly connected to the inner side of the cylindrical oil tank 72 on one side, so that the rotation of the oil storage column 71 is on the outside of the fixed empty rod 66, the central fixed empty connecting rod 73 and the side rotating empty column 61. The rotation of the oil storage column 71 drives the flow control component 8 and the central fixed empty connecting rod 73 to rotate, thereby controlling the speed of the oil storage column 71. The control device 9 includes a semi-open empty box 91, a semi-open control box 92 is fixedly connected to one side of the semi-open empty box 91, an electric push rod 93 is fixedly connected to the inner side of one end of the semi-open control box 92, a limit sliding plate 94 is fixedly connected to one side of the electric push rod 93, and a limit sealing plate 95 is fixedly connected to one side of the limit sliding plate 94. An electric push rod 93 has a side pressure flow hole 96 on its inner side at one end. Several side pressure flow holes 96 are provided. Hydraulic oil is provided inside one end of the electric push rod 93 and on one side of the limiting sealing disc 95. A flow deflector 97 is provided inside the semi-open empty box 91. The inner side of the side pressure flow hole 96 communicates with the inner side of the flow deflector 97. The inner side of the semi-open empty box 91 is connected to the inner side of the oil flow channel 83 through the flow deflector 97. This allows the limiting slide plate 94 to move, driving the limiting sealing disc 95 fixedly connected on one side to move. The outer side of the limiting sealing disc 95 is attached to the inner side of the semi-open control box 92, thus sealing the interior of the semi-open control box 92.

[0042] Working process: During use, the S1 device is powered by an external power source. When the tension of the cable delivery end and the non-delivery end is increased, the cable is positioned between the tensioning wheel group 3 and the control pressure wheel group 7. During normal laying, the control pressure wheel group 7 and the tensioning wheel group 3 rotate simultaneously. The inner side of the outer tensioning wheel 31 is rotatably connected to the outer side of the middle fixing roller 51. One side of the middle fixing roller 51 is fixed to one side of the fixing plate set at the upper end of the cable laying machine body 1. When the two outer tensioning wheels 31 rotate, the bevel teeth 35 fixedly connected to the inner side of the outer tensioning wheel 31 push the unidirectional tooth block 58 to move. According to the shape of the bevel teeth 35 and the unidirectional tooth block 58, the outer tensioning wheel 31 can only rotate in one direction. The two outer tensioning wheels 31 are set in opposite directions. The unidirectional tooth block 58 drives the ball 75 to slide inside the irregular groove 55, and the sliding moment plate The first ball 59, which is rotated on the inner side of 57, can reduce the friction between the unidirectional tooth block 58 and the sliding moment plate 57 moving inside the irregular groove 55. When one side of the unidirectional tooth block 58 moves away from the side of the slope tooth 35, the unidirectional tooth block 58 is pushed back to its original position under the elastic force of the second spring 56. At the same time, the irregular groove 55, which is fixedly connected to the outer side of the central fixing rod 51, rotates inside the built-in plate groove 36. When the outer tensioning wheel 31 rotates, the clamping plate 54 slides continuously inside the triangular clamping groove 34 and fits against the triangular clamping groove 34. When the outer tensioning wheel 31 stops rotating, under the torque of the torsion spring 52, the torsion spring 52 pushes the clamping plate 54 to twist. The clamping plate 54 pushes the outer tensioning wheel 31, which is fitted on the outside, to rotate. At the same time, the pressure roller group 7 is controlled to stop rotating. At this time, the tensioning effect of the submarine cable can be achieved.

[0043] S2: When it is necessary to control the speed of the control roller assembly 7, the electric push rod 93 is activated. The electric push rod 93 pushes the fixedly connected limit slide plate 94 to move. The movement of the limit slide plate 94 drives the fixedly connected limit sealing plate 95 to move. The outer side of the limit sealing plate 95 is attached to the inner side of the half-open control box 92. The limit sealing plate 95 seals the inside of the half-open control box 92. The limit sealing plate 95 pushes the hydraulic oil inside one end of the half-open control box 92 to flow. The hydraulic oil flows from the side pressure flow hole 96 into the baffle channel 97, from the baffle channel 97 into the oil storage column 71, from the oil storage column 71 into the oil flow channel 83, and from the oil flow channel 83 into the hollow pushed column 84. At this time, the hollow pushed column 84 is solid under the pressure of hydraulic pressure. The pusher 88 slides inside the hollow push column 84. The sealing silicone ring 89 seals the solid pusher 88. The movement of the solid pusher 88 moves the movable flow limiting block 85 fixedly connected to one side. The movable flow limiting block 85 slides inside the flow limiting recess 86. Under the seal of the silicone ring 87, the movable flow limiting block 85 prevents the hydraulic oil inside the cylindrical oil groove 72 from entering one end of the flow limiting recess 86 inside the hollow push column 84. At this time, the diameter of the flow limiting recess 86 gradually decreases. The fixed hollow rod 66 is fixedly connected to the side of the inverted concave slide plate 21. The oil storage hollow column 71 rotates outside the fixed hollow rod 66, the central fixed hollow connecting rod 73 and the side rotating hollow column 61. The rotation of the oil storage hollow column 71 drives the flow control component 8 and the central fixed hollow connecting rod 73 to rotate, thereby controlling the rotation speed of the oil storage hollow column 71.

[0044] S3: To increase the stability of submarine cable laying, the rubber outer ring 43 fixedly connected between the outer sheaths 41 prevents damage to the polyethylene outer sheath of the submarine cable. The rubber hemisphere 44 fixedly connected to the outside of the rubber outer ring 43 can increase the friction with the outer sheath of the submarine cable, thus achieving the effect of stable laying of the submarine cable. The outer sheaths 41 are close together. At the same time, when the outer tensioning wheel 31 rotates, the inner side of one end of the outer sheath 41 slides inside the movable empty column groove 32. Meanwhile, under the elastic force of the first spring 42, the outer sheaths 41 are kept close together. The outer sheaths 41 can prevent the phenomena of running skipping teeth, slippage and deviation.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A cable laying machine with submarine cable tensioning function, comprising a cable laying machine body (1) and an electric telescopic rod (2), characterized in that: The cable laying machine body (1) is provided with an electric telescopic rod (2) at one end, and a tensioning wheel assembly (3) is provided at the upper end of the cable laying machine body (1). A limiting component (4) is provided on the outer side of one end of the tensioning wheel assembly (3), and a direction limiting component (5) is provided inside the tensioning wheel assembly (3). A central column rotating rod assembly (6) is provided on one side of the cable laying machine body (1). A control pressure wheel assembly (7) is provided outside the central column rotating rod assembly (6). A flow control component (8) is provided inside the control pressure wheel assembly (7). A control device (9) is fixedly connected to one side of the control pressure wheel assembly (7). The tensioning wheel assembly (3) includes an outer tensioning wheel (31). A movable empty column groove (32) is opened on the inner side of the outer tensioning wheel (31), and a convenient rotation groove is opened on the inner side of the outer tensioning wheel (31). (33), the outer tensioning wheel (31) has a triangular groove (34) on its inner side, the rotating groove (33) has a bevel tooth (35) fixedly connected to its inner side, the outer tensioning wheel (31) has an inner plate groove (36) on its inner side, the limiting component (4) includes an outer protective frame (41), the inner side of one end of the outer protective frame (41) is fixedly connected to a first spring (42), the outer protective frame (41) is fixedly connected to one side of a rubber outer ring (43), the outer side of the rubber outer ring (43) is fixedly connected to a rubber hemisphere (44), the limiting component (5) includes a central fixing rod (51), the outer side of the central fixing rod (51) is fixedly connected to a torsion spring (52), the outer side of the central fixing rod (51) is fixedly connected to a central plate (53), the torsion spring ( 52) A card plate (54) is fixedly connected to one side. An irregular groove (55) is opened on the inner side of the middle plate (53). A second spring (56) is fixedly connected to one side of the irregular groove (55). A sliding moment plate (57) is fixedly connected to one end of the second spring (56). A unidirectional tooth block (58) is fixedly connected to one side of the sliding moment plate (57). A first ball (59) is provided inside the outer end of the sliding moment plate (57). The outer side of the unidirectional tooth block (58) meshes with the outer side of the bevel tooth (35). The card plate (54) fits against the inner side of the triangular card slot (34). The middle column rotating rod assembly (6) includes a side rotating empty column (61). A solid sealing groove (62) is opened on the inner side of one end of the side rotating empty column (61). 62) A sealing ring (63) is fixedly connected to one side. A ball groove (64) is opened on the inner side of one end of the side rotating empty column (61). A rod body (65) is fixedly connected to the inner side of the side rotating empty column (61). A fixed empty rod (66) is fixedly connected to the outer side of one end of the rod body (65). The control pressure roller group (7) includes an oil storage empty column (71). A cylindrical oil groove (72) is opened on the inner side of the oil storage empty column (71). A central solid empty connecting rod (73) is fixedly connected to the inner side of the cylindrical oil groove (72) through a flow control component (8). Movable semi-open grooves (74) are opened inside both ends of the central solid empty connecting rod (73). A ball (75) is provided on the inner side of the movable semi-open groove (74). The flow control component (8) includes a side arc rectangular plate (81).A sealing silicone ring (82) is fixedly connected to one side of the curved rectangular plate (81). An oil flow channel (83) is opened on the inner side of one end of the curved rectangular plate (81). A flow-limiting recess (86) is opened on the inner side of the curved rectangular plate (81). A hollow push post (84) is fixedly connected to one side of the flow-limiting recess (86). A movable flow-limiting block (85) is fixedly connected to one side of the hollow push post (84). A silicone ring (87) is fixedly connected to the inner side of the flow-limiting recess (86). A solid push rod (88) is slidably connected to the inner side of the hollow push post (84). A sealing silicone ring (89) is fixedly connected to the outer side of one end of the solid push rod (88). A silicone ring (87) is fixedly connected to one side of the solid push rod (88).

2. A cable laying machine with submarine cable tensioning function according to claim 1, characterized in that: The electric telescopic rod (2) is fixedly connected to one side of an inverted concave slide plate (21). A rotating concave hole (22) is opened on the inner side of one end of the inverted concave slide plate (21). A limiting groove (23) is opened on the inner side of one end of the cable laying machine body (1). A conveying end wheel (24) is provided inside one end of the cable laying machine body (1). There are several conveying end wheels (24). An arc plate is fixedly connected to the upper end of the cable laying machine body (1). The arc plate at the upper end of the cable laying machine body (1) is fixed to the left and right ends of the cable laying machine body (1). The conveying end wheels (24) are rotatably connected to the outer sides of both ends of the conveying end wheels (24). The shape of the inverted concave slide plate (21) is an inverted "U" shape. The outer side of the inverted concave slide plate (21) is slidably connected to the inner side of the limiting groove (23) through a limiting block. An arched bracket is fixedly connected to the upper end of the cable laying machine body (1). The upper end of the electric telescopic rod (2) is fixedly connected to one side of the upper end of the arched bracket at the upper end of the cable laying machine body (1).

3. A cable laying machine with submarine cable tensioning function according to claim 2, characterized in that: A fixing plate is fixedly connected to the upper end of the cable laying machine body (1). The inner side of the outer tensioning wheel (31) is rotatably connected to the outer side of the middle fixing rod (51). The two sides of the middle fixing rod (51) are fixedly connected to one side of the upper end of the cable laying machine body (1). The outer tensioning wheel (31) is cylindrical in shape. There are two outer tensioning wheels (31), and a certain distance is provided between them. There are two movable empty column grooves (32). The movable empty column grooves (32) are cylindrical in shape. The hollow cylinder has movable hollow cylinder grooves (32) on the inner sides of both ends of the outer tensioning wheel (31), the rotating groove (33) is cylindrical, there are two built-in plate grooves (36), there are two sets of equilateral triangular slots (34), each set of equilateral triangular slots (34) has a certain number of slots, and the bevel teeth (35) are right-angled triangular bodies with a certain number of teeth.

4. A cable laying machine with submarine cable tensioning function according to claim 3, characterized in that: The outer protective frame (41) is a semi-open cylinder. There are two sets of the outer protective frame (41). One end of the outer protective frame (41) slides inside the movable hollow column groove (32). There are two sets of the first spring (42) in each set. There are several sets of the first spring (42). One end of the first spring (42) is fixedly connected to the outer sides of both ends of the outer tension wheel (31). There are two sets of the outer protective frame (41). The rubber outer ring (43) is fixed between the outer protective frames (41). The rubber outer ring (43) is a hollow cylinder. The outer side of the upper outer protective frame (41) is in contact with the outer side of the lower outer protective frame (41).

5. A cable laying machine with submarine cable tensioning function according to claim 4, characterized in that: The central fixed rod (51) is cylindrical in shape. The inner side of the central plate (53) is provided with a cylindrical groove. The interior of the central plate (53) is fixedly connected to the outer side of the central fixed rod (51) through the cylindrical groove. The shape of the unidirectional tooth block (58) is a right-angled triangle. The number of irregular grooves (55) is several. The number of unidirectional tooth blocks (58) is the same as the number of irregular grooves (55). The outer side of the unidirectional tooth block (58) moves inside the irregular groove (55). The outer side of the sliding moment plate (57) is slidably connected to the inner side of the irregular groove (55) through the first ball (59). The second spring (56) is fixedly connected to one side of the irregular groove (55). The shape of the irregular groove (55) is a hollow cylinder. The outer side of the irregular groove (55) rotates inside the built-in plate groove (36). The outer side of the torsion spring (52) is in contact with one side of the rotating groove (33) and one side of the irregular groove (55).

6. A cable laying machine with submarine cable tensioning function according to claim 5, characterized in that: One side of the fixed empty rod (66) is fixedly connected to one side of the inverted concave slide plate (21). The fixed empty rod (66) has the same shape as the side rotating empty column (61). The solid sealing groove (62) opened on the inner side of one end of the side rotating empty column (61) is "L" shaped. One side of the side rotating empty column (61) is attached to one side of the central solid empty connecting rod (73). One side of the sealing ring (63) is attached to one side of the central solid empty connecting rod (73). There are two sets of ball moving grooves (64). There are two ball moving grooves in each set. The ball moving grooves (64) are opened on the inner side of one end of the side rotating empty column (61) and the fixed empty rod (66). One end of the side rotating empty column (61) moves inside the movable semi-open groove (74). The shape of the rod body (65) is cylindrical. The outer side of the side rotating empty column (61) is connected to the inner side of the control device (9) by a limiting rotating ring.

7. A cable laying machine with submarine cable tensioning function according to claim 6, characterized in that: The control pressure roller assembly (7) is a hollow cylinder. The cylindrical oil groove (72) is a multi-segment cylindrical opening. The cylindrical oil groove (72) is opened through the inside of the oil storage cylinder (71). The cylindrical oil groove (72) is filled with hydraulic oil. The movable semi-open groove (74) is partially opened inside both ends of the central solid hollow connecting rod (73). The movable semi-open groove (74) has an oil ball rotating groove on its inner side. There are several balls (75). The balls (75) rotate inside the ball rotating groove inside the movable semi-open groove (74). The balls (75) rotate inside the ball moving groove (64).

8. A cable laying machine with submarine cable tensioning function according to claim 7, characterized in that: The side arc rectangular plate (81) is rectangular in shape, with both the front and rear ends of the side arc rectangular plate (81) being arc-shaped. One end of the side arc rectangular plate (81) is attached to the inner side of the cylindrical oil groove (72), and one side of the side arc rectangular plate (81) is attached to the outer side of the central solid hollow connecting rod (73). There are several sets of sealing silicone rings (82), with two sealing silicone rings in each set. The sealing silicone rings (82) are fixed on both sides of the side arc rectangular plate (81). One end of the flow-limiting recess (86) is rectangular in shape and is opened through the inner side of the side arc rectangular plate (81). The silicone ring (87) is fixedly connected to one side of both ends of the flow-limiting recess (86). One side of the ring (87) is attached to both ends of the movable flow limiting block (85). The movable flow limiting block (85) slides inside the flow limiting concave hole (86). The inner side of the oil flow channel (83) is connected to the inner side of one end of the hollow pushed column (84). The hollow pushed column (84) is cylindrical in shape. A through hole is opened on the inner side of one end of the hollow pushed column (84). The outer side of the sealing silicone ring (82) is attached to the inner side of the cylindrical oil groove (72). The outer side of the sealing silicone ring (82) is attached to the outer side of the central solid hollow connecting rod (73), the fixed hollow rod (66), and the side rotating hollow column (61). There are several side arc rectangular plates (81). One side of the flow control component (8) is fixedly connected to the inner side of the cylindrical oil groove (72).

9. A cable laying machine with submarine cable tensioning function according to claim 8, characterized in that: The control device (9) includes a semi-open empty box (91), a semi-open control box (92) is fixedly connected to one side of the semi-open empty box (91), an electric push rod (93) is fixedly connected to the inner side of one end of the semi-open control box (92), a limit sliding plate (94) is fixedly connected to one side of the electric push rod (93), a limit sealing plate (95) is fixedly connected to one side of the limit sliding plate (94), a side pressure flow hole (96) is opened on the inner side of one end of the electric push rod (93), and there are several side pressure flow holes (96). Hydraulic oil is provided inside one end of the electric push rod (93) and inside the limit sealing plate (95) on one side. A flow deflector (97) is opened inside the semi-open empty box (91), and the inner side of the side pressure flow hole (96) is connected to the inner side of the flow deflector (97). The inner side of the semi-open empty box (91) is connected to the inner side of the oil flow channel (83) through the flow deflector (97).

10. A method of using a cable laying machine with submarine cable tensioning function as described in claim 9, characterized in that: When S1 increases the tension at the cable delivery end and the non-delivery end, the cable is positioned between the tensioning wheel group (3) and the control pressure wheel group (7). During normal laying, the control pressure wheel group (7) and the tensioning wheel group (3) rotate simultaneously. The inner side of the outer tensioning wheel (31) is rotatably connected to the outer side of the middle fixing roller (51). One side of the middle fixing roller (51) is fixed to one side of the fixing plate set at the upper end of the cable laying machine body (1). When the two outer tensioning wheels (31) rotate, the bevel teeth (35) fixedly connected to the inner side of the outer tensioning wheel (31) push the unidirectional tooth block (58) to move. According to the shape of the bevel teeth (35) and the unidirectional tooth block (58), the outer tensioning wheel (31) can only rotate in one direction. The two outer tensioning wheels (31) are set in opposite directions, and the unidirectional tooth block (58) drives the roller. The bead (75) slides inside the irregular groove (55). When one side of the unidirectional tooth block (58) moves away from the side of the slope tooth (35), the unidirectional tooth block (58) is pushed back to its original position under the elastic force of the second spring (56). At the same time, the irregular groove (55) fixedly connected to the outer side of the central fixed rod (51) rotates inside the built-in plate groove (36). When the outer tension wheel (31) rotates, the card plate (54) slides continuously inside the triangular card slot (34) and fits inside the triangular card slot (34). When the outer tension wheel (31) stops rotating, under the torque of the torsion spring (52), the torsion spring (52) pushes the card plate (54) to twist. The card plate (54) pushes the outer tension wheel (31) that is fitted to the outside to rotate, and at the same time controls the pressure roller group (7) to stop rotating. S2: When it is necessary to control the rotation speed of the control pressure roller group (7), start the electric push rod (93). The electric push rod (93) pushes the fixedly connected limit slide plate (94) on one side to move. The movement of the limit slide plate (94) drives the fixedly connected limit sealing plate (95) on one side to move. The outer side of the limit sealing plate (95) is attached to the inner side of the half-open control box (92). The limit sealing plate (95) pushes the hydraulic oil inside one end of the half-open control box (92) to flow. The hydraulic oil flows from the side pressure flow hole (96) into the baffle channel (97), from the baffle channel (97) into the oil storage column (71), from the oil storage column (71) into the oil flow channel (83), and from the oil flow channel (83) into the hollow pushed column ( Inside 84), under hydraulic pressure, the solid pusher (88) slides inside the hollow pusher (84). The solid pusher (88) moves, causing the movable flow limiting block (85) fixedly connected on one side to move. The movable flow limiting block (85) slides inside the flow limiting recess (86). Under the seal of the silicone ring (87), the diameter of the flow limiting recess (86) gradually decreases. The fixed hollow rod (66) is fixedly connected to the side of the inverted concave slide plate (21). The oil storage hollow column (71) rotates outside the fixed hollow rod (66), the central solid hollow connecting rod (73), and the side rotating hollow column (61). The rotation of the oil storage hollow column (71) causes the flow control component (8) and the central solid hollow connecting rod (73) to rotate. S3: To increase the stability of submarine cable laying, the rubber outer ring (43) fixedly connected between the outer sheaths (41) prevents damage to the polyethylene outer sheath of the submarine cable. The rubber hemisphere (44) fixedly connected to the outside of the rubber outer ring (43) can increase the friction with the outer sheath of the submarine cable, thus achieving the effect of stable laying of the submarine cable. The outer sheaths (41) fit together. At the same time, when the outer tensioning wheel (31) rotates, the inner side of one end of the outer sheath (41) slides inside the movable empty column groove (32). Meanwhile, under the elastic force of the first spring (42), the outer sheaths (41) remain fitted together.

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