A conveying and guiding device for submarine cable laying construction

Abstract

The application relates to the technical field of submarine cable construction, and discloses a conveying and guiding device for submarine cable laying construction, which comprises a rope placing pool located above a laying ship deck and internally containing a submarine cable, the bottom surface of the laying ship deck is fixedly connected with a cable releasing motor, the output shaft of the cable releasing motor penetrates through the laying ship deck and is fixedly connected with a No. 6 gear, the end of the rope placing pool close to the laying ship deck is fixedly connected with a No. 5 gear meshing with the No. 6 gear, the upper surface of the laying ship deck is fixedly connected with a supporting seat located at the middle part of the rope placing pool, the No. 5 gear is sleeved and rotationally connected outside the lower end of the supporting seat, and the upper end of the supporting seat is rotationally connected with a No. 1 corner wheel. The conveying and guiding device for submarine cable laying construction can detect the submarine bottom protrusions or depressions in advance through a single-beam depth finder, can adjust the submarine cable releasing angle in real time through the angle changing mechanism driven by the tilting motor, can avoid the bending and suspension of the submarine cable caused by the path mutation, and can improve the laying precision and reduce the risk of the ditching machine overturning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submarine cable construction, in particular to a conveying and guiding device for submarine cable laying construction. BACKGROUND

[0002] Submarine cable laying construction refers to the engineering operation of laying cables in the marine environment, which can be submarine high-voltage direct-current transmission cables for transmitting power or submarine optical fiber cables for communication purposes. In the process of submarine cable laying construction, in order to more accurately guide the laying of the cable along the predetermined path and avoid the cable deviating from the design route, a conveying and guiding device is often used for assistance.

[0003] The patent with the current publication number CN222138295U discloses a submarine cable conveying device, which comprises a base and a conveying disc arranged on the base. The conveying disc is arranged on a mounting seat. The mounting seat is rotationally positioned relative to the base. The conveying disc is rotationally arranged relative to the mounting seat. A guide pipe is arranged on the base. A rotating pipe is also arranged on the base. The rotating pipe is connected with the mounting seat. The rotating pipe drives the mounting seat and the conveying disc arranged on the mounting seat to rotate under the action of external force. The base comprises a pyramid-shaped base. An installation gap is arranged in the middle of the base. First and second fixed seats are arranged on both sides of the installation gap. The guide pipe passes through the first fixed seat. The rotating pipe passes through the second fixed seat. The end of the guide pipe is arranged in the rotating pipe. The rotating pipe is in communication with the conveying disc. The device has the beneficial effects of convenient installation, easy use and edge operation.

[0004] However, the above-mentioned device still has the following problems in actual use:

[0005] The seabed often presents undulating topographic features due to factors such as silt accumulation. In current submarine cable laying construction, although a trenching machine is used to dig trenches on the seabed, the device can only passively follow the laying along the undulating topography and cannot actively flatten the protrusions or fill the depressions. Since the submarine cable conveying and guiding structure on the laying ship releases the submarine cable at a constant speed, when encountering seabed protrusions or depressions, the submarine cable released at a constant speed is easy to bend and hang due to the sudden change in the path, which not only leads to poor laying effect, but also may cause equipment damage problems such as overturning of the trenching machine. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a conveying and guiding device for submarine cable laying construction, which can adaptively solve the problem of affecting the laying of submarine cables when the seabed has protrusions or depressions.

[0007] To achieve the above object, the present application provides the following technical scheme: a kind of conveying guide device for sea cable laying construction, including the rope pool that is located above the deck of laying ship and internally has sea cable, the bottom surface of the deck of laying ship is fixedly connected with cable laying motor, the output shaft of cable laying motor penetrates the deck of laying ship and is fixedly connected with No. six gear, the end of rope pool close to the deck of laying ship is fixedly connected with No. five gear meshing with No. six gear, the upper surface of the deck of laying ship is fixedly connected with support seat located in the middle of rope pool, No. five gear is rotatably connected in the outside of the lower end of support seat, the upper end of support seat is rotatably connected with No. one corner wheel, the upper end of support seat is also connected with conveying guide mechanism, the upper surface of the deck of laying ship is also fixedly connected with two support blocks, angle changing mechanism is connected between the two support blocks, the other end of angle changing mechanism is connected with self-adapting adjustment assembly, the other end of self-adapting adjustment assembly is connected with single-beam echo sounder below sea surface.

[0008] Further, angle changing mechanism includes tilt motor, rotating block, extension rod, U-shaped seat, No. two corner wheels and transmission rod, the side wall of one of support blocks is fixedly connected with the outer wall of tilt motor, the output shaft of tilt motor is fixedly connected with one end of transmission rod, the other end of transmission rod penetrates rotating block and two support blocks and is rotatably connected with two support blocks, transmission rod is fixedly connected with rotating block, the other end of rotating block is fixedly connected with one end of extension rod, the other end of extension rod is fixedly connected with the bottom surface of U-shaped seat, the other two ends of U-shaped seat are rotatably connected with the two ends of No. two corner wheel shaft respectively, No. two corner wheel is aligned with No. one corner wheel, the end of U-shaped seat away from extension rod is also connected with self-adapting adjustment assembly.

[0009] Further, self-adapting adjustment assembly includes extension plate, guide assembly, speed reduction assembly and telescopic assembly, one end of guide assembly is connected with the deck of laying ship, one end of extension plate is fixedly connected with the end of U-shaped seat away from extension rod, one end of speed reduction assembly is connected with extension plate, the other end of speed reduction assembly is connected with guide assembly, the third end of speed reduction assembly is connected with telescopic assembly, the other end of telescopic assembly is connected with single-beam echo sounder.

[0010] Further, guide assembly includes L-shaped frame, arc-shaped rack plate, support rod and recovery motor, the bottom surface of the deck of laying ship is provided with two installation openings, recovery motor and cable laying motor are fixedly connected with two installation openings respectively, the output shaft of recovery motor penetrates to above the deck of laying ship and is fixedly connected with one end of L-shaped frame, the other end of L-shaped frame is fixedly connected with one end of arc-shaped rack plate, the other end of arc-shaped rack plate is fixedly connected with one end of support rod, the other end of support rod is detachably connected with the deck of laying ship through bolt, arc-shaped rack plate is connected with speed reduction assembly.

[0011] Further, the speed reduction assembly comprises a first gear, a second gear, a third gear, a fourth gear and three rotating rods, one end of each of the three rotating rods is rotatably connected with the extension plate, the first gear and the second gear are fixedly connected to the outer wall of the first rotating rod, the third gear is fixedly connected to the outer wall of the second rotating rod, the fourth gear is fixedly connected to the outer wall of the third rotating rod, the first gear is engaged with the arc-shaped gear rack, the third gear is engaged with the second gear and the fourth gear, and the fourth gear, away from the extension plate, is connected with the telescopic assembly.

[0012] Further, the telescopic assembly comprises a fixed block, a hydraulic rod and an immersion pressure sensor, one end of the fixed block is fixedly connected to the fourth gear, away from the extension plate, the other end of the fixed block is fixedly connected to the outer wall of the hydraulic rod, the output end of the hydraulic rod is fixedly connected to the upper end of the immersion pressure sensor, and the other end of the immersion pressure sensor is fixedly connected to the upper end of the single-beam depth finder.

[0013] Further, the L-shaped frame and the arc-shaped gear rack, close to the one side of the U-shaped seat, are fixedly connected with mounting blocks, the one side of each of the two mounting blocks is fixedly connected with a trigger block, and the extension plate, close to the one end of the U-shaped seat, is fixedly connected with a contact sensor matched with the two trigger blocks.

[0014] Further, the one end of the extension plate, close to the first gear, is provided with a plurality of through holes, and the one end of the extension plate, close to the first gear, is further fixedly connected with a plurality of guide rings in communication with the plurality of through holes, the inner wall of each of the plurality of through holes is fixedly connected with an electromagnet, the inner wall of each of the plurality of guide rings is slidably connected with an extrusion block, each of the plurality of extrusion blocks is aligned with each of the plurality of electromagnets, and each of the plurality of extrusion blocks is provided with a common magnet in the inside thereof, the one end of each of the plurality of extrusion blocks, away from the electromagnet, faces the first gear, and the one side of each of the plurality of extrusion blocks, facing the first gear, is provided with an anti-skid pad.

[0015] Further, the conveying guide mechanism comprises two power assemblies, four fixed frames, a plurality of side wheels and a plurality of connecting blocks, the bottom surface of each of the four fixed frames is fixedly connected with the upper end of the support seat, the two ends of each of the four fixed frames are connected with the two power assemblies, the two power assemblies are arranged in parallel, the plurality of connecting blocks are connected with the two power assemblies, and the upper and lower ends of each of the plurality of side wheels are rotatably connected with the two connecting blocks.

[0016] Further, the power assembly comprises a clamping conveying belt, a conveying motor, a center plate, two side plates and two transmission rollers, the two side plates are fixedly connected with the four fixing frames respectively on the sides away from each other, and are also fixedly connected with a plurality of connecting blocks respectively on the sides away from each other, the outer wall of the conveying motor is fixedly connected with one of the side plates, the output shaft of the conveying motor is fixedly connected with one end of one of the transmission rollers, the two transmission rollers are arranged in parallel, and the two ends of the two transmission rollers are rotatably connected with the two ends of the two side plates respectively, the center plate is located between the two transmission rollers, and the two sides of the center plate are fixedly connected with the two side plates respectively, and the clamping conveying belt is sleeved outside the center plate and the two transmission rollers.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. The conveying and guiding device for submarine cable laying construction can detect the submarine protrusions or depressions in advance through the single-beam depth sounder, cooperate with the angle changing mechanism driven by the inclined motor, and adjust the release angle of the submarine cable in real time, so as to avoid the bending and suspension of the submarine cable caused by the sudden change of the path, improve the laying accuracy, and reduce the risk of the trencher overturning.

[0019] 2. The conveying and guiding device for submarine cable laying construction can ensure that the single-beam depth sounder always remains vertical downward when the device changes the angle through the linkage design of the arc-shaped rack plate and the reduction gear set, and effectively eliminate the influence of the change of the ship's draft on the measurement accuracy in combination with the depth compensation function of the hydraulic rod.

[0020] 3. The conveying and guiding device for submarine cable laying construction can monitor the critical value of the adjustment angle of the device in real time through the cooperation of the contact sensor and the trigger block, and prompt the operator to reset in time through the audible and visual alarm to prevent damage to the mechanism caused by excessive adjustment.

[0021] 4. The conveying and guiding device for submarine cable laying construction can lock the gear position through the electromagnet-driven extrusion block to enhance the structural stability in a vibrating environment.

[0022] 5. The conveying and guiding device for submarine cable laying construction can ensure that the submarine cable is always located directly below the conveying mechanism through the gear transmission driving of the cable releasing motor to make the rope pool rotate, avoid the jamming problem caused by the twisting of the submarine cable in traditional laying, and improve the smoothness of the system operation.

[0023] 6. The conveying and guiding device for submarine cable laying construction can realize the bidirectional clamping and uniform speed conveying of the submarine cable through the cooperation of the upper and lower double-layer power assemblies and the clamping conveying belt, limit the lateral deviation of the submarine cable through the two side guide wheels, avoid the falling or winding of the submarine cable during the conveying process, and ensure the continuous construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall appearance of the present application.

[0025] Figure 2 This is a schematic diagram of the overall appearance of the invention from another perspective;

[0026] Figure 3 This is a schematic diagram of the overall appearance of the components after the deck of the ship has been removed from the present invention.

[0027] Figure 4 This is a detailed connection diagram of the components of the present invention, including the support base, the first corner wheel, and the conveying and guiding mechanism.

[0028] Figure 5 This is a detailed connection diagram of the support block and the angle changing mechanism of the present invention;

[0029] Figure 6 This is a detailed connection diagram of the adaptive adjustment component and the single-beam depth sounder of the present invention;

[0030] Figure 7 This is a detailed connection diagram of the L-shaped frame, arc-shaped rack plate, and trigger block of the present invention;

[0031] Figure 8 This is a detailed connection diagram of the extension plate, guide assembly, and deceleration assembly of the present invention;

[0032] Figure 9 For the present invention Figure 8 Explosion diagrams of various components;

[0033] Figure 10 For the present invention Figure 9 Enlarged diagram of point A in the middle.

[0034] In the diagram: 1. Rope laying deck; 2. Rope pool; 3. Support seat; 4. First angle wheel; 5. Clamping conveyor belt; 6. L-shaped frame; 7. Arc-shaped rack plate; 8. Support rod; 9. Tilting motor; 10. Rotating block; 11. Extension rod; 12. U-shaped seat; 13. Second angle wheel; 14. First gear; 15. Fixing block; 16. Hydraulic rod; 17. Single beam depth sounder; 18. Mounting port; 19. Cable laying motor; 20. Support block; 21. Mounting block; 22. Trigger block; 3. Fixed frame; 24. Side wheel; 25. Side plate; 26. Conveyor motor; 27. Drive roller; 28. Center plate; 29. ​​Connecting block; 30. Drive rod; 31. Gear No. 2; 32. Gear No. 3; 33. Gear No. 4; 34. Extension plate; 35. Contact sensor; 36. Rotating rod; 37. Immersion pressure sensor; 38. Recycling motor; 39. Through port; 40. Electromagnet; 41. Guide ring; 42. Extrusion block; 43. Gear No. 5; 44. Gear No. 6. Detailed Implementation

[0035] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0036] Please refer to Figures 1-10 The utility model provides a conveying guide device for submarine cable laying construction, including the rope pool 2 that is located above the deck 1 of laying ship and has submarine cable inside, the bottom surface fixed connection of deck 1 of laying ship has the cable releasing motor 19, the output shaft of cable releasing motor 19 penetrates deck 1 of laying ship and is fixedly connected with the sixth gear 44, the one end fixed connection of rope pool 2 close to deck 1 of laying ship has the fifth gear 43 meshed with the sixth gear 44, the upper surface fixed connection of deck 1 of laying ship has the support seat 3 in the middle of rope pool 2, the fifth gear 43 is rotatably connected in the outside of the lower end of support seat 3, the upper end rotatable connection of support seat 3 has the first corner wheel 4, the upper end of support seat 3 is also connected with conveying guide mechanism, the upper surface fixed connection of deck 1 of laying ship has two support blocks 20, and the angle change mechanism is connected between the two support blocks 20, and the other end of angle change mechanism is connected with adaptive adjustment assembly, and the other end of adaptive adjustment assembly is connected with single-beam echo sounder 17 below sea surface.

[0037] It needs to be particularly pointed out here that:

[0038] By setting the rope pool 2, the submarine cable can be collected in it before laying, avoiding the submarine cable from falling off;

[0039] By setting the cable releasing motor 19, the sixth gear 44 and the fifth gear 43, the submarine cable inside the rope pool 2 can be controlled to rotate during laying, so that the submarine cable can always be located below the conveying guide mechanism and will not be entangled;

[0040] By setting the single-beam echo sounder 17, the sound wave ranging can be emitted towards the seabed during the laying ship walking, so that the relevant situation can be detected in advance before the trencher reaches the position of the protrusions or depressions, and then the angle adjustment is performed through the angle change mechanism, thereby reducing the probability of causing bending and suspension;

[0041] The single-beam echo sounder 17 can be of the type HP1201 acoustic inertial single-beam echo sounder, which works on the principle of emitting a single narrow-beam sound wave downward, receiving the seabed reflection signal, and calculating the depth through the sound speed and time difference. Of course, other models or other devices and instruments with the same function can also be used, and the specific limitations are not made.

[0042] As a preferred scheme of the present application, the angle changing mechanism comprises the tilting motor 9, the rotating block 10, the extension rod 11, the U-shaped seat 12, the second corner wheel 13 and the transmission rod 30, the outer wall of the tilting motor 9 is fixedly connected with the side wall of one of the support blocks 20, the output shaft of the tilting motor 9 is fixedly connected with one end of the transmission rod 30, the other end of the transmission rod 30 penetrates through the rotating block 10 and the two support blocks 20 and is rotatably connected with the two support blocks 20, the transmission rod 30 is fixedly connected with the rotating block 10, the other end of the rotating block 10 is fixedly connected with one end of the extension rod 11, the other end of the extension rod 11 is fixedly connected with the bottom surface of the U-shaped seat 12, the other two ends of the U-shaped seat 12 are rotatably connected with the two ends of the rotating shaft of the second corner wheel 13 respectively, the second corner wheel 13 is aligned with the first corner wheel 4, and the end of the U-shaped seat 12 away from the extension rod 11 is further connected with the self-adapting adjusting assembly.

[0043] More specifically, by arranging the angle changing mechanism, when the single-beam depth finder 17 monitors that the height of the silt on the seabed protrudes or is recessed, the U-shaped seat 12 and the second corner wheel 13 can be controlled to be raised or inclined downward by the tilting motor 9 (because the length of the rotating block 10 and the extension rod 11 is fixed, when the tilting motor 9 rotates, the U-shaped seat 12 and the second corner wheel 13 must be raised or lowered in an arc), thereby the submarine cable (such as the submarine cable 2) originally kept horizontal on the second corner wheel 13 can be raised or inclined downward, and the length of the submarine cable on the seabed can be changed to adapt to the protrusion or the recess of the seabed. Figures 1-3 More specifically, by arranging the angle changing mechanism, when the single-beam depth finder 17 monitors that the height of the silt on the seabed protrudes or is recessed, the U-shaped seat 12 and the second corner wheel 13 can be controlled to be raised or inclined downward by the tilting motor 9 (because the length of the rotating block 10 and the extension rod 11 is fixed, when the tilting motor 9 rotates, the U-shaped seat 12 and the second corner wheel 13 must be raised or lowered in an arc), thereby the submarine cable (such as the submarine cable 2) originally kept horizontal on the second corner wheel 13 can be raised or inclined downward, and the length of the submarine cable on the seabed can be changed to adapt to the protrusion or the recess of the seabed.

[0044] As a preferred scheme of the present application, the self-adapting adjusting assembly comprises the extension plate 34, the guide assembly, the speed reduction assembly and the telescopic assembly, one end of the guide assembly is connected with the deck 1 of the laying ship, one end of the extension plate 34 is fixedly connected with the end of the U-shaped seat 12 away from the extension rod 11, one end of the speed reduction assembly is connected with the extension plate 34, the other end of the speed reduction assembly is connected with the guide assembly, the third end of the speed reduction assembly is connected with the telescopic assembly, and the other end of the telescopic assembly is connected with the single-beam depth finder 17.

[0045] More specifically, because the single-beam depth finder 17 is connected with the telescopic assembly of the self-adapting adjusting assembly, and the whole self-adapting adjusting assembly rotates as a whole with the tilting motor 9, the whole self-adapting adjusting assembly rotates, and at this time, the single-beam depth finder 17 can be kept vertical downward by the self-adapting adjusting assembly, thereby the measurement accuracy is ensured.

[0046] As a preferred embodiment of the present invention, the guiding assembly includes an L-shaped frame 6, an arc-shaped rack plate 7, a support rod 8, and a retrieval motor 38. Two mounting ports 18 are provided on the bottom surface of the laying deck 1. The retrieval motor 38 and the cable laying motor 19 are respectively fixedly connected to the two mounting ports 18. The output shaft of the retrieval motor 38 passes through to the top of the laying deck 1 and is fixedly connected to one end of the L-shaped frame 6. The other end of the L-shaped frame 6 is fixedly connected to one end of the arc-shaped rack plate 7. The other end of the arc-shaped rack plate 7 is fixedly connected to one end of the support rod 8. The other end of the support rod 8 is detachably connected to the laying deck 1 by bolts. The arc-shaped rack plate 7 is connected to the deceleration assembly.

[0047] More specifically, by setting a guide component, when the deceleration component rotates with the tilting motor 9, the deceleration component, the telescopic component, and the single-beam depth sounder 17 can be additionally controlled to rotate, thereby ensuring that the single-beam depth sounder 17 is always vertically downward.

[0048] As a preferred embodiment of the present invention, the deceleration assembly includes a first gear 14, a second gear 31, a third gear 32, a fourth gear 33, and three rotating rods 36. One end of each of the three rotating rods 36 is rotatably connected to an extension plate 34. The first gear 14 and the second gear 31 are simultaneously fixedly connected to the outer wall of the first rotating rod 36, the third gear 32 is fixedly connected to the outer wall of the second rotating rod 36, and the fourth gear 33 is fixedly connected to the outer wall of the third rotating rod 36. The first gear 14 meshes with the arc-shaped rack plate 7, the third gear 32 meshes with both the second gear 31 and the fourth gear 33, and the side of the fourth gear 33 away from the extension plate 34 is connected to the telescopic assembly.

[0049] More specifically, by setting up a speed reduction assembly, the meshing rotation speed between the first gear 14 and the arc-shaped rack plate 7 can be reduced, thereby enabling the fourth gear 33 to keep the single-beam depth sounder 17 vertical.

[0050] It should be noted that: such as Figures 1-3 As shown, the arc of the curved rack plate 7 is 90°, so the first gear 14 rotates around the curved rack plate 7 at an angle of 90°. Therefore, if the single-beam depth sounder 17 wants to remain vertical, the rotation angle must also be within the range of 90°. However, since the number of teeth on the curved rack plate 7 is much greater than the number of teeth on the first gear 14, when the first gear 14 rotates along the curved rack plate 7, the rotation angle of the single-beam depth sounder 17 needs to be changed by the reduction gear assembly to maintain the fit.

[0051] Furthermore, for example, the number of teeth on the curved rack plate 7 is 144, the number of teeth on gear 14, gear 32, and gear 43 is 48, and the number of teeth on gear 2 is 4. Thus, when gear 14 moves along the teeth of the curved rack plate 7, such as rotating from top to bottom, when gear 14 has rotated halfway on the curved rack plate 7 (e.g....), Figures 1-3 (In the state of motion), at this time, the number of teeth of the first gear 14 is 144 / 2=72, and 72 / 48=1.5, which is equivalent to the first gear 14 rotating one and a half times. Since the first gear 14 and the second gear 31 are connected to the same rotating rod 36, the second gear 31 also rotates one and a half times. Therefore, the number of teeth rotated by the second gear 31 is 4*1.5=6. Then the third gear 32, which meshes with the second gear 31, will also rotate 6 teeth. 6 teeth are equivalent to one-eighth of the third gear 32 (48 / 6=8). Therefore, the third gear 32 will also rotate one-eighth of a turn, which is 45°. Since the number of teeth of the fourth gear 33 is the same as that of the third gear 32, after the fourth gear 33 rotates 6 teeth, it will be exactly the same as the first gear 14 stopping at the center of the arc rack plate 7 at 45°. At this time, the single beam depth sounder 17 will still remain vertically downward.

[0052] It should be noted that, as an example, the number of teeth mentioned above can be scaled up or down proportionally to achieve the same purpose in practical applications.

[0053] As a preferred embodiment of the present invention, the telescopic assembly includes a fixing block 15, a hydraulic rod 16, and an immersion pressure sensor 37. One end of the fixing block 15 is fixedly connected to the side of the fourth gear 33 away from the extension plate 34, and the other end of the fixing block 15 is fixedly connected to the outer wall of the hydraulic rod 16. The output end of the hydraulic rod 16 is fixedly connected to the upper end of the immersion pressure sensor 37, and the other end of the immersion pressure sensor 37 is fixedly connected to the upper end of the single-beam depth sounder 17.

[0054] More specifically, because submarine cables have a certain weight, and a large number of cables are carried during a single laying operation, the draft of the laying vessel at departure differs from the draft during the laying process. Since the single-beam echo sounder 17 works by "emitting a single narrow beam of sound downwards, receiving the reflected signal from the seabed, and calculating the depth using the speed of sound and the time difference," the depth of the single-beam echo sounder 17 below the sea surface varies as the draft of the laying vessel decreases. This slight change in distance could potentially mislead the accuracy of the single-beam echo sounder 17's measurements. Therefore, by setting up a telescopic component, the depth of the single-beam echo sounder 17 can be gradually adjusted as the submarine cable is laid, ensuring that the distance between the single-beam echo sounder 17 and the sea surface remains constant. This constant distance between the single-beam echo sounder 17 and the seabed allows for more accurate identification and judgment of any protrusions or depressions on the seabed.

[0055] In summary, combined with Figures 1-10 As shown in the cable laying construction conveying guide device in the application, when in use, first, the end of the submarine cable away from the rope pool 2 is threaded through the first corner wheel 4, then through the conveying guide mechanism, and finally through the second corner wheel 13, so that the end of the submarine cable can be placed into the seabed, and then only a trencher needs to be arranged outside the end of the submarine cable in the seabed, and with the movement of the laying ship, the normal laying of the submarine cable can be realized.

[0056] During the laying of the submarine cable, because the single-beam depth finder 17 is always vertically downward and is located below the sea surface, the single-beam depth finder 17 can continuously emit sound waves to the seabed for depth measurement, and when a protrusion or a depression is monitored in the seabed during the depth measurement, the single-beam depth finder 17 transmits an electrical signal to the PLC controller (hereinafter referred to as the controller, which is a prior art and will not be described in detail here) on the laying ship, and then the controller immediately starts the tilting motor 9.

[0057] After the tilting motor 9 is started, the output shaft with the transmission rod 30 rotates, and the transmission rod 30 rotates with the rotating block 10, the extension rod 11, the U-shaped seat 12, and the second corner wheel 13, at this time, the submarine cable originally placed on the second corner wheel 13 will be lowered downward with the second corner wheel 13, thereby changing the length of the submarine cable originally located below the sea level, and then with the continuous movement of the laying ship, the trencher moves to the previously monitored protrusion or depression part, and then the submarine cable with the changed length can be normally laid, thereby increasing the laying effect and reducing the probability of trencher failure.

[0058] Meanwhile, during the rotation of the U-shaped seat 12, the first gear 14 connected to the extension plate 34 on one side of the U-shaped seat 12 will engage with the arc-shaped rack plate 7, then the first gear 14 rotates with the second gear 31 through the first rotating rod 36, then the second gear 31 rotates with the third gear 32, and the third gear 32 rotates with the fourth gear 33, thereby ensuring that the single-beam depth finder 17 and the hydraulic rod 16 can always be vertically downward.

[0059] It should be noted that the extension rod 11 rotates to drive the single-beam depth finder 17 and the hydraulic rod 16 to keep the vertical state for circular lifting, so that when the extension rod 11 is lifted by the tilting motor 9 at the end of use, the single-beam depth finder 17 and the hydraulic rod 16 can be lifted out of the water at the same time, thereby avoiding the single-beam depth finder 17 still being immersed in the water after use, so as to avoid the reduction of precision and the shortening of service life due to salt corrosion, biological attachment, and aging of the submarine cable.

[0060] In addition, as the laying of the submarine cable, the laying ship's draft is getting smaller and smaller, in order to avoid the impact on the single-beam depth sounder 17 and the seabed depth measurement data deviation, at this time the controller starts the hydraulic rod 16, the output end of the hydraulic rod 16 extends outward, and then the single-beam depth sounder 17 and the immersed pressure sensor 37 connected to the output end are pushed into the water together, so that the distance between the single-beam depth sounder 17 and the sea level is kept within the same range, thereby reducing the error.

[0061] As a preferred scheme of the present application, the L-shaped frame 6 and the arc-shaped rack plate 7 are fixedly connected with mounting blocks 21 on one side close to the U-shaped seat 12, and the two mounting blocks 21 are fixedly connected with trigger blocks 22 on one side, and the extension plate 34 is fixedly connected with contact sensors 35 on one end close to the U-shaped seat 12, which cooperate with the two trigger blocks 22.

[0062] More specifically, by setting the mounting block 21, the trigger block 22 and the contact sensor 35, when the extension plate 34 rotates with the tilting motor 9, if the contact sensor 35 on the extension plate 34 contacts any one of the trigger blocks 22, the contact sensor 35 will immediately transmit an electrical signal to the controller at this time, and the controller will turn on the audible and visual alarm on the laying ship to remind the crew that the adaptive adjustment angle of the submarine cable has reached the critical value at this time, and the laying motor 19 and the conveying guide mechanism need to be adjusted immediately to reset the inclination angle of the extension plate 34 and other components, so as to avoid the subsequent discovery of protrusions or depressions and the inability to adapt in time.

[0063] As a preferred scheme of the present application, the extension plate 34 is provided with a plurality of through openings 39 on one end close to the first gear 14, and the extension plate 34 is further fixedly connected with a plurality of guide rings 41 on one end close to the first gear 14, the inner walls of the plurality of through openings 39 are fixedly connected with electromagnets 40, the inner walls of the plurality of guide rings 41 are slidably connected with extrusion blocks 42, the plurality of extrusion blocks 42 are aligned with the plurality of electromagnets 40, and the plurality of extrusion blocks 42 are provided with ordinary magnets inside, the ends of the plurality of extrusion blocks 42 away from the electromagnets 40 are all directed towards the first gear 14, and the sides of the extrusion blocks 42 directed towards the first gear 14 are provided with anti-skid pads.

[0064] More specifically, by setting the electromagnet 40, the guide ring 41 and the extrusion block 42, and further setting a common magnet inside the extrusion block 42, when the extension plate 34 rotates with the plurality of gears, because the laying ship walks on the sea surface, it is inevitable to produce shaking, so when the tilting motor 9 starts, at this time the electromagnet 40 attracts the extrusion block 42 to the direction where the electromagnet 40 is located (i.e. inside the guide ring 41), and after the tilting motor 9 self-adjusts the angle, in order to avoid the self-rotation of the second rotating angle wheel 13 and other components due to vibration and the like, or to reduce the support load of the second rotating angle wheel 13 and the tilting motor 9 and other components, at this time the magnetic pole of the electromagnet 40 can be changed by the controller, and then the extrusion block 42 can be extruded along the guide ring 41 to the side wall of the first gear 14 by the electromagnet 40, to forcibly limit the rotation of the first gear 14, thereby improving the stability.

[0065] As a preferred scheme of the application, the conveying guide mechanism comprises two power assemblies, four fixed frames 23, a plurality of side wheels 24 and a plurality of connecting blocks 29, the bottom surfaces of the four fixed frames 23 are fixedly connected with the upper end of the support base 3, the two ends of the four fixed frames 23 are respectively connected with the two power assemblies, the two power assemblies are arranged in parallel, the plurality of connecting blocks 29 are respectively connected with the two power assemblies, and the upper and lower ends of the plurality of side wheels 24 are respectively rotationally connected with the two connecting blocks 29.

[0066] More specifically, by setting the two power assemblies arranged in parallel, the submarine cable can be clamped from the upper and lower sides of the submarine cable when conveying the submarine cable, so that the submarine cable is gradually guided to the direction of the second rotating angle wheel 13 at a uniform speed; and by setting the plurality of side wheels 24 on the two sides of the two power assemblies, the submarine cable can be limited to move only in a specific direction and cannot fall from the side of the power assembly.

[0067] As a preferred scheme of the application, the power assembly comprises a clamping conveying belt 5, a conveying motor 26, a center plate 28, two side plates 25 and two transmission rollers 27, the sides away from each other of the two side plates 25 are respectively fixedly connected with the four fixed frames 23, and the sides away from each other of the two side plates 25 are also respectively fixedly connected with the plurality of connecting blocks 29, the outer wall of the conveying motor 26 is fixedly connected with one of the side plates 25, one end of the output shaft of the conveying motor 26 is fixedly connected with one of the transmission rollers 27, the two transmission rollers 27 are arranged in parallel, and the two ends of the two transmission rollers 27 are respectively rotationally connected with the two ends of the two side plates 25, the center plate 28 is located between the two transmission rollers 27, and the two sides of the center plate 28 are respectively fixedly connected with the two side plates 25, and the clamping conveying belt 5 is sleeved outside the center plate 28 and the two transmission rollers 27.

[0068] More specifically, when the submarine cable needs to be laid, only one end of the submarine cable is passed through the first corner wheel 4, and then the submarine cable is passed through the gap between the two clamping conveyor belts 5 and the side wheels 24, and then the submarine cable is placed on the second corner wheel 13 and extends into the seabed;

[0069] Then, the cable laying motor 19 is started to drive the sixth gear 44 to rotate, the sixth gear 44 drives the fifth gear 43 to rotate, the fifth gear 43 drives the rope pool 2 to rotate, and the submarine cable in the rope pool 2 is gradually released. At this time, the controller also starts the two conveying motors 26, the output shafts of the two conveying motors 26 drive the two transmission rollers 27 to rotate, and the two transmission rollers 27 drive the clamping conveyor belts 5 to rotate, so as to clamp the submarine cable between the two clamping conveyor belts 5, to ensure uniform release.

[0070] It should be particularly noted that:

[0071] The two conveying motors 26 are uniformly controlled by the controller, so that stable output can be ensured, and the situation of one fast and one slow does not occur.

[0072] The side of the two clamping conveyor belts 5 in contact with the submarine cable is provided with anti-skid lines or clamping cross strips to improve the clamping friction and reduce the probability of submarine cable loosening (the same purpose is achieved by providing the central plate 28 in the clamping conveyor belt 5, to avoid that the clamping force is affected due to the middle of the clamping conveyor belt 5 being empty).

[0073] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A conveying guide device for a submarine cable laying operation, characterized by: The utility model relates to a laying ship deck (1) is provided with the rope pool (2) of the submarine cable in the inside, the upper surface of laying ship deck (1) is fixedly connected with the support seat (3) in the middle of rope pool (2), the upper end of support seat (3) is rotatably connected with no. The angle changing mechanism includes an inclination motor (9), a rotating block (10), an extension rod (11), a U-shaped seat (12), a second corner wheel (13) and a transmission rod (30), the outer wall of the inclination motor (9) is fixedly connected with the side wall of one of the support blocks (20), the output shaft of the inclination motor (9) is fixedly connected with one end of the transmission rod (30), the other end of the transmission rod (30) penetrates through the rotating block (10) and the two support blocks (20) and is rotatably connected with the two support blocks (20), the transmission rod (30) is fixedly connected with the rotating block (10), the other end of the rotating block (10) is fixedly connected with one end of the extension rod (11), the other end of the extension rod (11) is fixedly connected with the bottom surface of the U-shaped seat (12), the other two ends of the U-shaped seat (12) are rotatably connected with the two ends of the rotating shaft of the second corner wheel (13), the second corner wheel (13) is aligned with the first corner wheel (4), and the end of the U-shaped seat (12) away from the extension rod (11) is connected with the adaptive adjusting assembly. The adaptive adjusting assembly includes an extension plate (34), a guide assembly, a speed reduction assembly and a telescopic assembly, one end of the guide assembly is connected with the laying ship deck (1), one end of the extension plate (34) is fixedly connected with the end of the U-shaped seat (12) away from the extension rod (11), one end of the speed reduction assembly is connected with the extension plate (34), the other end of the speed reduction assembly is connected with the guide assembly, the third end of the speed reduction assembly is connected with the telescopic assembly, and the other end of the telescopic assembly is connected with the single-beam depth finder (17). The guide assembly includes an L-shaped frame (6), an arc-shaped rack plate (7), a support rod (8) and a recovery motor (38), two mounting holes (18) are formed in the bottom surface of the laying ship deck (1), the recovery motor (38) and the cable laying motor (19) are fixedly connected with the two mounting holes (18) respectively, the output shaft of the recovery motor (38) penetrates to above the laying ship deck (1) and is fixedly connected with one end of the L-shaped frame (6), the other end of the L-shaped frame (6) is fixedly connected with one end of the arc-shaped rack plate (7), the other end of the arc-shaped rack plate (7) is fixedly connected with one end of the support rod (8), the other end of the support rod (8) is detachably connected with the laying ship deck (1) through bolts, and the arc-shaped rack plate (7) is connected with the speed reduction assembly. The speed reduction assembly comprises a first gear (14), a second gear (31), a third gear (32), a fourth gear (33) and three rotating rods (36), one end of each of the three rotating rods (36) is rotatably connected with an extension plate (34), the first gear (14) and the second gear (31) are fixedly connected on the outer wall of the first rotating rod (36), the third gear (32) is fixedly connected on the outer wall of the second rotating rod (36), the fourth gear (33) is fixedly connected on the outer wall of the third rotating rod (36), the first gear (14) is engaged with the arc-shaped rack plate (7), the third gear (32) is engaged with the second gear (31) and the fourth gear (33), and the fourth gear (33) is connected with the telescopic assembly on the side away from the extension plate (34). The telescopic assembly comprises a fixed block (15), a hydraulic rod (16) and an immersion pressure sensor (37), one end of the fixed block (15) is fixedly connected with the fourth gear (33) on the side away from the extension plate (34), the other end of the fixed block (15) is fixedly connected with the outer wall of the hydraulic rod (16), the output end of the hydraulic rod (16) is fixedly connected with the upper end of the immersion pressure sensor (37), and the other end of the immersion pressure sensor (37) is fixedly connected with the upper end of the single-beam depth finder (17).

2. A delivery guide for a marine cable installation operation according to claim 1, characterised in that: The bottom surface of the laying ship deck (1) is fixedly connected with a cable releasing motor (19), the output shaft of the cable releasing motor (19) penetrates through the laying ship deck (1) and is fixedly connected with a sixth gear (44), one end of the rope pool (2) close to the laying ship deck (1) is fixedly connected with a fifth gear (43) engaged with the sixth gear (44), and the fifth gear (43) is sleeved and rotatably connected on the outer portion of the lower end of the supporting seat (3).

3. A delivery guide for a marine cable laying operation according to claim 2, characterised in that: The L-shaped frame (6) and the arc-shaped rack plate (7) are fixedly connected with mounting blocks (21) on the side close to the U-shaped seat (12), the sides of the two mounting blocks (21) are fixedly connected with trigger blocks (22), and the extension plate (34) is fixedly connected with contact sensors (35) matched with the two trigger blocks (22) on the end close to the U-shaped seat (12).

4. A delivery guide for a marine cable laying operation according to claim 3, characterised in that: A plurality of through openings (39) are formed in the end of the extension plate (34) close to the first gear (14), a plurality of guide rings (41) in communication with the plurality of through openings (39) are fixedly connected to the end of the extension plate (34) close to the first gear (14), the inner walls of the plurality of through openings (39) are fixedly connected with electromagnets (40), the inner walls of the plurality of guide rings (41) are slidably connected with extrusion blocks (42), the plurality of extrusion blocks (42) are respectively aligned with the plurality of electromagnets (40), the interiors of the plurality of extrusion blocks (42) are respectively provided with common magnets, the ends of the plurality of extrusion blocks (42) away from the electromagnets (40) are all directed towards the first gear (14), and the side of the extrusion block (42) directed towards the first gear (14) is provided with an antiskid pad.

5. A delivery guide for a marine cable laying operation according to claim 4, characterised in that: The conveying guide mechanism comprises two power assemblies, four fixing frames (23), a plurality of side wheels (24) and a plurality of connecting blocks (29), the bottom surfaces of the four fixing frames (23) are fixedly connected with the upper end of the support base (3), the two ends of the four fixing frames (23) are connected with the two power assemblies respectively, the two power assemblies are arranged in parallel, the plurality of connecting blocks (29) are connected with the two power assemblies respectively, and the upper and lower ends of the plurality of side wheels (24) are rotatably connected with the two connecting blocks (29) respectively.

6. A delivery guide for a marine cable laying operation according to claim 5, wherein: The power assembly comprises a clamping conveying belt (5), a conveying motor (26), a center plate (28), two side plates (25) and two transmission rollers (27), the sides, away from each other, of the two side plates (25) are fixedly connected with the four fixing frames (23) respectively, and the sides, away from each other, of the two side plates (25) are also fixedly connected with the plurality of connecting blocks (29) respectively, the outer wall of the conveying motor (26) is fixedly connected with one of the side plates (25), the output shaft of the conveying motor (26) is fixedly connected with one end of one of the transmission rollers (27), the two transmission rollers (27) are arranged in parallel, and the two ends of the two transmission rollers (27) are rotatably connected with the two ends of the two side plates (25) respectively, the center plate (28) is located between the two transmission rollers (27), and the two sides of the center plate (28) are fixedly connected with the two side plates (25) respectively, and the clamping conveying belt (5) is sleeved outside the center plate (28) and the two transmission rollers (27).

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