Submarine cable laying equipment and method

Abstract

The invention relates to the technical field of cable laying, in particular to submarine cable laying equipment and method.The submarine cable laying equipment comprises a sliding block box and a box cover I fixedly connected to the sliding block box, an opening I is formed in the sliding block box, a sliding shaft is fixedly connected to the interior of the opening I, and two sliding blocks I are slidably connected to the sliding shaft; the sliding shaft is used for enabling the sliding blocks I to only slide in the axis direction of the sliding shaft, the sliding block box is rotationally connected with a two-way screw, the two-way screw is in threaded connection with the two sliding blocks I, the sliding block box is fixedly connected with a motor II, and an output shaft of the motor II is fixedly connected with the two-way screw. The beneficial effects are that ditches can be dug on the seabed and cables can be buried into gullies, and the laying efficiency of the cables can be further improved.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and more specifically to a submarine cable laying device and method. Background Technology

[0002] Submarine cables are cables wrapped in insulating material and laid on the seabed for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables use optical fibers as the material to transmit telephone and internet signals. Submarine cable laying mainly includes three stages: cable route survey and clearing, cable laying, and burial protection. During cable laying, the angle of entry into the water and the laying tension of the cable are controlled by adjusting the speed of the laying vessel and the cable release speed to avoid damage to the cable due to excessive bending radius or excessive tension. In shallow water sections, the cable laying vessel stops 4.5 kilometers from the coast, and the cable, placed on a buoy, is pulled ashore by a shore-based tractor. After the cable is on shore, the buoy is removed, allowing the cable to sink to the seabed. During deep-sea cable laying, the cable-laying vessel releases the cable and uses underwater monitors and remotely operated vehicles to continuously monitor and adjust the vessel's forward speed, direction, and cable laying speed to avoid uneven terrain and rocks and prevent damage to the cable. In the submarine cable laying stage, it is necessary to dig a trench in the seabed and bury the submarine cable in the trench. However, there is currently a lack of equipment in the technology that can dig a trench in the seabed and bury the cable in the trench. Summary of the Invention

[0003] This invention relates to the field of cable laying technology, and more specifically to a submarine cable laying equipment and method. Its advantages include the ability to excavate trenches on the seabed and bury cables in the trenches, thereby further improving the efficiency of cable laying.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A submarine cable laying device includes a slider box and a cover II fixedly connected to the slider box. The slider box has an opening I, and a sliding shaft is fixedly connected to the opening I. Two sliders I are slidably connected to the sliding shaft. The sliding shaft is used to make the sliders I slide only along the axis of the sliding shaft. A bidirectional screw is rotatably connected to the slider box and threadedly connected to the two sliders I. A motor II is fixedly connected to the slider box, and the output shaft of the motor II is fixedly connected to the bidirectional screw.

[0006] Furthermore, each of the two sliders I is rotatably connected to a rotating shaft I, and each of the two rotating shafts I is fixedly connected to a limit wheel I.

[0007] Furthermore, it also includes a drive box, on which a cover II is fixedly connected. A sliding groove I is provided on the drive box, and two rotating shafts I are slidably connected to the sliding groove I. The two rotating shafts I pass through the sliding groove I, and gears are fixedly connected to each of the two rotating shafts I. A bidirectional worm gear is rotatably connected to the drive box, and both gears mesh with the bidirectional worm gear. A motor II is fixedly connected to the drive box, and the output shaft of the motor II is fixedly connected to the bidirectional worm gear.

[0008] Furthermore, a support plate is fixedly connected to the lower end of the slider box, the support plate is fixedly connected to the drive box, a support rod I is fixedly connected to the lower end of the support plate, and two sliding skids are fixedly connected to the lower end of the support rod I.

[0009] Furthermore, the support plate has an opening II, and a drag hook is fixedly connected to the support plate. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 This is a schematic diagram of the overall structure of the laying equipment;

[0012] Figure 2 This is a schematic diagram of the cable feeding device;

[0013] Figure 3 This is a schematic diagram of the spacing adjustment device. Figure I ;

[0014] Figure 4 This is a schematic diagram of the spacing adjustment device. Figure II ;

[0015] Figure 5 This is a schematic diagram of the rotating device. Figure I ;

[0016] Figure 6 This is a schematic diagram of the rotating device. Figure II ;

[0017] Figure 7 This is a schematic diagram of the grooving plow lifting structure;

[0018] Figure 8 This is a structural schematic diagram of the grooving plow and cable fixing device;

[0019] Figure 9 This is a schematic diagram of the cable fixing device;

[0020] Figure 10 This is a schematic diagram of the longitudinal section of the cable fixing device;

[0021] Figure 11 This is a structural diagram of the support plate and the sliding skid. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] The following is in conjunction with the appendix Figure 2-6 Detailed description: A submarine cable laying device and method, the laying device includes a slider box 101, a cover I 102, an opening I 103, a sliding shaft 104, a bidirectional screw 106, and a motor II 107. The cover I 102 is fixedly connected to the slider box 101, the opening I 103 is formed on the slider box 101, two sliding shafts 104 are fixedly connected to the opening I 103, two sliders I 105 are slidably connected to the sliding shafts 104, the bidirectional screw 106 is rotatably connected to the slider box 101, the two sliders I 105 are threadedly connected to the bidirectional screw 106, and the motor II 107 is fixedly connected to the slider box 101. The bidirectional screw 106 is fixedly connected to the output shaft of the motor II 107.

[0024] Furthermore, two circular holes I are provided on the slider I 105, and two sliding shafts 104 are slidably connected in the two holes I respectively. The slider box 101 is provided with a shaft hole II, and a bidirectional screw 106 is rotatably connected in the shaft hole II. The motor II 107 drives the bidirectional screw 106 to rotate. When the bidirectional screw 106 rotates clockwise, it drives the two sliders I 105 to slide equidistantly to the front and rear sides. When the bidirectional screw 106 rotates counterclockwise, it drives the two sliders I 105 to slide equidistantly towards the center.

[0025] The following is in conjunction with the appendix Figure 2-6 In detail, the laying equipment also includes a rotating shaft I108 and a limiting wheel I109. Both rotating shafts I108 are rotatably connected to the slider I105, and the two limiting wheels I109 are fixedly connected to the rotating shafts I108 respectively.

[0026] Furthermore, a shaft hole Ⅲ is provided on the slider I 105, and a rotating shaft I 108 is rotatably connected in the shaft hole Ⅲ so that the limiting wheel I 109 can rotate on the slider I 105.

[0027] The following is in conjunction with the appendix Figure 2-6In detail, the laying equipment further includes a drive box 201, a cover II 202, a sliding groove I 203, gears 204, a bidirectional worm gear 205, and a motor II 206. The cover II 202 is fixedly connected to the drive box 201. The sliding groove I 203 is formed on the drive box 201. Two rotating shafts I 108 are slidably connected to the sliding groove I 203 and pass through the sliding groove I 203. Two gears 204 are fixedly connected to the two rotating shafts I 108 respectively. The bidirectional worm gear 205 is rotatably connected to the drive box 201 and meshes with the two gears 204. The motor II 206 is fixedly connected to the drive box 201, and the bidirectional worm gear 205 is fixedly connected to the output shaft of the motor II 206.

[0028] Furthermore, the drive box 201 is provided with a shaft hole IV. When the motor II 206 drives the bidirectional worm gear 205 to rotate, the bidirectional worm gear 205 drives the limit wheel I 109 to rotate through the gear 204. By adopting gear and worm gear transmission, the bidirectional worm gear 205 can still be maintained even after the distance between the two limit wheels I 109 is adjusted. When the cable is installed between the two limit wheels I 109, the cable can be fed downwards when the two limit wheels I 109 rotate.

[0029] The following is in conjunction with the appendix Figure 1 In detail, the laying equipment also includes a support plate 301, a support rod I 302, and two sliding sleds 303. The support plate 301 is fixedly connected to the lower part of the slider box 101, the drive box 201 is fixedly connected to the support plate 301, the support rod I 302 is fixedly connected to the lower end of the support plate 301, and two sliding sleds 303 are fixedly connected to the lower end of the support rod I 302.

[0030] Furthermore, the support plate 301 provides installation space for the slider box 101 and the drive box 201, the support rod I 302 provides support, and the sliding skid 303 is used to increase the contact area so that the laying equipment can slide on the seabed.

[0031] The following is in conjunction with the appendix Figure 1 and 11 In detail, the laying equipment also includes an opening II 304 and a drag hook 305. The opening II 304 is formed on the support plate 301, and the drag hook 305 is fixedly connected to the support plate 301.

[0032] Furthermore, opening II 304 provides space for cables to pass through support plate 301, and tow hook 305 is used to connect to the traction vessel.

[0033] The following is in conjunction with the appendix Figure 7In detail, the laying equipment also includes an upper support frame 401, a lower support frame 402, support rods II 403, and a telescopic rod 404. The two upper support frames 401 are fixedly connected to the lower end of the support plate 301. The two support rods II 403 are rotatably connected to the two upper support frames 401 respectively. The two lower support frames 402 are rotatably connected to the lower end of the two support rods II 403 respectively. The telescopic rod 404 is rotatably connected to the upper support frame 401 located on the left end. The lower support frame 402 located on the right end is rotatably connected to the movable end of the telescopic rod 404.

[0034] Furthermore, the upper support frame 401 is provided with a support shaft I, and the upper end of the support rod II 403 is provided with a shaft hole V. The support shaft I is rotatably connected in the shaft hole V, so that the support rod II 403 can rotate around the upper support frame 401. The lower support frame 402 is provided with a support shaft II, and the lower end of the support rod II 403 is provided with a shaft hole VI. The support shaft II is rotatably connected in the shaft hole VI, so that the support rod II 403 can rotate around the lower support frame 402. The upper end of the telescopic rod 404 is provided with a shaft hole VII, which is rotatably connected to the support shaft I. The lower end of the telescopic rod 404 is provided with a shaft hole VIII, which is rotatably connected to the support shaft II.

[0035] The following is in conjunction with the appendix Figure 8 In detail, the laying equipment also includes a grooving plow 405 and a cable trough 406. The grooving plow 405 is fixedly connected to the lower end of the two lower support frames 402, and the cable trough 406 is opened on the grooving plow 405.

[0036] Furthermore, when the telescopic rod 404 extends, it drives the grooving plow 405 to descend; when the telescopic rod 404 shortens, it drives the grooving plow 405 to rise. The cable trough 406 provides a sliding space for the cable. The support plate 301, upper support frame 401, lower support frame 402, support rod II 403, and grooving plow 405 form a parallelogram mechanism, which ensures that the grooving plow 405 remains parallel to the seabed at all times.

[0037] The following is in conjunction with the appendix Figure 9-10 In detail, the laying equipment further includes a sliding box 501, a sliding groove II 502, a rotating shaft II 503, a limiting wheel II 504, a slider II 505, and a spring 506. The sliding box 501 is fixedly connected inside the grooving plow 405. The sliding groove II 502 is formed on the sliding box 501. The rotating shaft II 503 is slidably connected in the sliding groove II 502. The limiting wheel II 504 is fixedly connected to the rotating shaft II 503. The slider II 505 is slidably connected in the sliding box 501. The rotating shaft II 503 is rotatably connected to the slider II 505. The spring 506 is fixedly connected to the slider II 505 and is used to give the slider II 505 a tendency to slide to the left.

[0038] Furthermore, a shaft hole IX is provided on the slider II 505, and the rotating shaft II 503 is rotatably connected in the shaft hole IX, so that the limiting wheel II 504 can rotate on the slider II 505. After the cable is put into the cable groove 406, the spring 506 pushes the limiting wheel II 504 to slide to the left, and the grooving plow 405 presses against the cable so that the cable is always at the bottom of the cable groove 406.

[0039] The following is in conjunction with the appendix Figure 9-10 In detail, the laying equipment also includes a bracket 601 and a high-pressure nozzle 602. The two brackets 601 are fixedly connected to the two sliding skids 303 respectively, and the two high-pressure nozzles 602 are fixedly connected to the two brackets 601 respectively.

[0040] Furthermore, the bracket 601 provides installation space for the high-pressure nozzle 602. During the laying work, the high-pressure nozzle 602 is connected to the high-pressure water pipe, and the high-pressure nozzle 602 will carve a trench in the seabed for laying the cable.

[0041] The method of using the submarine cable laying equipment according to claim 9 includes the following steps:

[0042] Step 1: Place the laying equipment on the seabed;

[0043] Step 2: Motor II 107 adjusts the distance between the two limit wheels I 109 through the bidirectional screw 106 and slider I 105 to clamp cables of different specifications. The cable is installed between the two limit wheels I 109. The cable passes through the opening II 304 and is installed in the cable groove 406. Spring 506 pushes the grooving plow 405 to slide to the left. The grooving plow 405 holds the cable so that the cable remains stable in the cable groove 406.

[0044] Step 3: Connect the high-pressure nozzle 602 to the high-pressure water pipe. The high-pressure nozzle 602 will carve a trench in the seabed.

[0045] Step 4: The telescopic rod 404 extends to lower the grooving plow 405 into the trench.

[0046] Step 5: The traction hook 305 drives the laying equipment forward. The motor II 206 controls the two limit wheels I 109 to rotate through the bidirectional worm gear 205 and gear 204. The rotation of the two limit wheels I 109 realizes the cable feeding. The bidirectional worm gear 205 controls the cable feeding speed to be consistent with the forward movement of the laying equipment, thus completing the cable laying.

Claims

1. A submarine cable laying device, characterized in that: The device includes a slider box (101) and a cover I (102) fixedly connected to the slider box (101). The slider box (101) has an opening I (103), and a sliding shaft (104) is fixedly connected in the opening I (103). Two sliders I (105) are slidably connected to the sliding shaft (104). The sliding shaft (104) is used to make the sliders I (105) slide only along the axis of the sliding shaft (104). A bidirectional screw (106) is rotatably connected to the slider box (101). The bidirectional screw (106) is threadedly connected to the two sliders I (105). A motor II (107) is fixedly connected to the slider box (101). The output shaft of the motor II (107) is fixedly connected to the bidirectional screw (106).

2. The submarine cable laying equipment according to claim 1, characterized in that: Both sliders I (105) are rotatably connected to shafts I (108), and both shafts I (108) are fixedly connected to limit wheels I (109).

3. The submarine cable laying equipment according to claim 2, characterized in that: It also includes a drive box (201), a cover II (202) is fixedly connected to the drive box (201), a sliding groove I (203) is opened on the drive box (201), two rotating shafts I (108) are slidably connected to the sliding groove I (203), the two rotating shafts I (108) pass through the sliding groove I (203), gears (204) are fixedly connected to both rotating shafts I (108), a bidirectional worm gear (205) is rotatably connected to the drive box (201), both gears (204) mesh with the bidirectional worm gear (205), a motor II (206) is fixedly connected to the drive box (201), and the output shaft of the motor II (206) is fixedly connected to the bidirectional worm gear (205).

4. The submarine cable laying equipment according to claim 3, characterized in that: The lower end of the slider box (101) is fixedly connected to a support plate (301), the support plate (301) is fixedly connected to the drive box (201), the lower end of the support plate (301) is fixedly connected to a support rod I (302), and the lower end of the support rod I (302) is fixedly connected to two sliding skids (303).

5. The submarine cable laying equipment according to claim 4, characterized in that: An opening II (304) is provided on the support plate (301), and a drag hook (305) is fixedly connected to the support plate (301).

6. The submarine cable laying equipment according to claim 5, characterized in that: Two upper support frames (401) are fixedly connected to the support plate (301). Support rods II (403) are rotatably connected to both upper support frames (401). Lower support frames (402) are rotatably connected to the lower ends of both support rods II (403). A telescopic rod (404) is rotatably connected to the upper support frame (401) located on the left end. The movable end of the telescopic rod (404) is rotatably connected to the lower support frame (402) located on the right end.

7. The submarine cable laying equipment according to claim 6, characterized in that: The lower ends of the two lower support frames (402) are fixedly connected to a grooving plow (405), and a cable groove (406) is provided on the grooving plow (405).

8. The submarine cable laying equipment according to claim 7, characterized in that: A sliding box (501) is fixedly connected inside the grooving plow (405). A sliding groove II (502) is provided on the sliding box (501). A rotating shaft II (503) is slidably connected in the sliding groove II (502). A limit wheel II (504) is fixedly connected on the rotating shaft II (503). A slider II (505) is slidably connected in the sliding box (501). The slider II (505) is rotatably connected to the rotating shaft II (503). A spring (506) is fixedly connected on the slider II (505). The spring (506) is used to make the slider II (505) have a tendency to slide to the left.

9. The submarine cable laying equipment according to claim 8, characterized in that: Each of the two sliding skids (303) is fixedly connected to a bracket (601), and each of the two brackets (601) is fixedly connected to a high-pressure nozzle (602).

10. A method of using the submarine cable laying equipment according to claim 9, comprising the following steps: Step 1: Place the laying equipment on the seabed; Step 2: Motor II (107) adjusts the distance between the two limit wheels I (109) through the bidirectional screw (106) and slider I (105) to clamp cables of different specifications. The cable is installed between the two limit wheels I (109), and the cable passes through the opening II (304) and is installed in the cable groove (406). The spring (506) pushes the grooving plow (405) to slide to the left. The grooving plow (405) holds the cable so that the cable remains stable in the cable groove (406). Step 3: Connect the high-pressure nozzle (602) to the high-pressure water pipe. The high-pressure nozzle (602) will create a trench in the seabed. Step 4: Extend the telescopic rod (404) to lower the grooving plow (405) into the trench: Step 5: The traction hook (305) drives the laying equipment forward. The motor II (206) controls the two limit wheels I (109) to rotate through the bidirectional worm gear (205) and gear (204). The rotation of the two limit wheels I (109) realizes the feeding of the cable. The bidirectional worm gear (205) controls the cable feeding speed to be consistent with the forward movement of the laying equipment, thus completing the laying of the cable.

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