Conveying and guiding device for submarine cable laying construction

Abstract

The invention relates to the technical field of submarine cable construction, and discloses a conveying guide device for submarine cable laying construction, which comprises a rope placing pool which is positioned above a laying ship deck and is internally provided with a submarine cable, the bottom surface of the laying ship deck is fixedly connected with a cable laying motor, and an output shaft of the cable laying motor penetrates through the laying ship deck and is fixedly connected with a sixth gear; the end, close to the laying ship deck, of the rope containing pool is fixedly connected with a fifth gear meshed with the sixth gear, the upper surface of the laying ship deck is fixedly connected with a supporting base located in the middle of the rope containing pool, the fifth gear sleeves and is rotationally connected to the outer portion of the lower end of the supporting base, and the upper end of the supporting base is rotationally connected with a first corner wheel. According to the conveying guide device for submarine cable laying construction, the single-beam depth finder is used for detecting protrusions or recesses of the seabed in advance, the angle change mechanism driven by the inclined motor is matched, the submarine cable release angle can be adjusted in real time, the submarine cable is prevented from being bent and suspended due to sudden change of the path, the laying precision is improved, and the rollover risk of a trencher is reduced.

Description

Technical Field

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

[0002] Submarine cable installation refers to the engineering work of laying cables in a marine environment. These cables can be submarine high-voltage direct current (HVDC) cables for power transmission or submarine fiber-optic cables for communications. During the submarine cable installation process, conveying guides are often used to more accurately guide the cable along the intended path and prevent it from deviating from the designed route.

[0003] The patent currently announced with number CN222138295U discloses a submarine cable conveying device, comprising a base and a conveying disc arranged on the base, wherein the conveying disc is arranged on the mounting seat; the mounting seat is rotatably positioned relative to the base; the conveying disc is rotatably arranged relative to the mounting seat; a guide tube is provided on the base; a rotating tube is also provided on the base; the rotating tube is connected to the mounting seat; the rotating tube drives the mounting seat and the conveying disc arranged on the mounting seat to rotate under the action of external force, and the base comprises a pyramid-shaped base; a mounting notch is provided in the middle of the base; a first fixed seat and a second fixed seat are respectively provided on both sides of the mounting notch; the guide tube passes through the first fixed seat; the rotating tube passes through the second fixed seat; the end of the guide tube is arranged in the rotating tube; the rotating tube is communicated with the conveying disc. The device has the beneficial effects of easy installation, easy use and edge operation.

[0004] However, the above device still has the following problems during actual use: The seabed is affected by factors such as siltation and often presents an undulating terrain feature. In the current submarine cable laying construction, although trenchers are used to dig trenches on the seabed, the equipment can only passively follow the terrain undulations during laying and cannot actively level out ridges or fill depressions. Since the submarine cable conveying and guiding structure on the laying vessel releases the submarine cable at a constant speed, when encountering a ridge or depression on the seabed, the submarine cable released at a constant speed is prone to bending and hanging in the air due to sudden changes in the path, which not only leads to poor laying results, but may also cause equipment damage such as the trencher tipping over. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a conveying and guiding device for submarine cable laying construction, which can adaptively solve the problem of bulges or depressions on the seabed that affect the laying of submarine cables.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a conveying and guiding device for submarine cable laying construction, comprising a rope-laying pool located above the deck of a laying ship and having the submarine cable placed therein, a cable-releasing motor fixedly connected to the bottom surface of the deck of the laying ship, an output shaft of the cable-releasing motor passing through the deck of the laying ship and fixedly connected to a sixth gear, a fifth gear meshing with the sixth gear fixedly connected to one end of the rope-laying pool close to the deck of the laying ship, a support seat located in the middle of the rope-laying pool fixedly connected to the upper surface of the deck of the laying ship, the fifth gear sleeved and rotatably connected to the outside of the lower end of the support seat, the upper end of the support seat rotatably connected to a first cornering wheel, the upper end of the support seat is also connected to a conveying and guiding mechanism, two support blocks are also fixedly connected to the upper surface of the deck of the laying ship, an angle changing mechanism is connected between the two support blocks, the other end of the angle changing mechanism is connected to an adaptive adjustment component, and the other end of the adaptive adjustment component is connected to a single-beam depth sounder located below the sea surface.

[0007] Furthermore, the angle changing mechanism includes a tilting motor, a rotating block, an extension rod, a U-shaped seat, a second corner wheel and a transmission rod. The outer wall of the tilting motor is fixedly connected to the side wall of one of the support blocks, the output shaft of the tilting motor is fixedly connected to one end of the transmission rod, the other end of the transmission rod passes through the rotating block and the two support blocks and is rotatably connected to both support blocks, the transmission rod is fixedly connected to the rotating block, the other end of the rotating block is fixedly connected to one end of the extension rod, the other end of the extension rod is fixedly connected to the bottom surface of the U-shaped seat, the other two ends of the U-shaped seat are respectively rotatably connected to the two ends of the rotating shaft of the number two corner wheel, the number two corner wheel is aligned with the number one corner wheel, and the end of the U-shaped seat away from the extension rod is also connected to the adaptive adjustment component.

[0008] Furthermore, the adaptive adjustment component includes an extension plate, a guide component, a deceleration component and a telescopic component. One end of the guide component is connected to the deck of the laying ship, one end of the extension plate is fixedly connected to the end of the U-shaped seat away from the extension rod, one end of the deceleration component is connected to the extension plate, the other end of the deceleration component is connected to the guide component, the third end of the deceleration component is connected to the telescopic component, and the other end of the telescopic component is connected to the single-beam depth sounder.

[0009] Furthermore, the guide assembly includes an L-shaped frame, an arcuate rack plate, a support rod and a recovery motor. Two installation openings are provided on the bottom surface of the laying ship deck. The recovery motor and the cable-releasing motor are fixedly connected to the two installation openings respectively. The output shaft of the recovery motor passes through the top of the laying ship deck and is fixedly connected to one end of the L-shaped frame. The other end of the L-shaped frame is fixedly connected to one end of the arcuate rack plate. The other end of the arcuate rack plate is fixedly connected to one end of the support rod. The other end of the support rod is detachably connected to the laying ship deck by bolts. The arcuate rack plate is connected to the deceleration assembly.

[0010] Furthermore, the reduction assembly includes gear No. 1, gear No. 2, gear No. 3, gear No. 4 and three rotating rods, one end of the three rotating rods are rotatably connected to the extension plate, gear No. 1 and gear No. 2 are fixedly connected to the outer wall of the first rotating rod, gear No. 3 is fixedly connected to the outer wall of the second rotating rod, gear No. 4 is fixedly connected to the outer wall of the third rotating rod, gear No. 1 is meshed with the arc-shaped rack plate, gear No. 3 is meshed with gear No. 2 and gear No. 4, and the side of gear No. 4 away from the extension plate is connected to the telescopic assembly.

[0011] Furthermore, the telescopic assembly includes a fixed block, a hydraulic rod and an immersion pressure sensor, one end of the fixed block is fixedly connected to the side of 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 sounder.

[0012] Furthermore, the L-shaped frame and the arc-shaped rack plate are fixedly connected to mounting blocks on one side close to the U-shaped seat, and the two mounting blocks are fixedly connected to trigger blocks on one side. The end of the extension plate close to the U-shaped seat is fixedly connected to a contact sensor that cooperates with the two trigger blocks.

[0013] Furthermore, a plurality of through openings are formed through one end of the extension plate close to the number one gear, and a plurality of guide rings are fixedly connected to the one end of the extension plate close to the number one gear, which are respectively connected to the plurality of through openings. The inner walls of the plurality of through openings are fixedly connected to the electromagnets, and the inner walls of the plurality of guide rings are slidably connected to extrusion blocks, which are respectively aligned with the plurality of electromagnets, and ordinary magnets are provided inside the plurality of extrusion blocks, and the ends of the plurality of extrusion blocks away from the electromagnets are all facing the number one gear, and an anti-slip pad is provided on the side of the extrusion blocks facing the number one gear.

[0014] Furthermore, the conveying guide mechanism includes two power assemblies, four fixed frames, several side wheels and several connecting blocks. The bottom surfaces of the four fixed frames are fixedly connected to the upper end of the support seat, the two ends of the four fixed frames are respectively connected to the two power assemblies, the two power assemblies are arranged parallel to each other, the several connecting blocks are respectively connected to the two power assemblies, and the upper and lower ends of the several side wheels are respectively rotatably connected to the two connecting blocks.

[0015] Furthermore, the power assembly includes a clamping conveyor belt, a conveying motor, a center plate, two side plates and two transmission rollers. The sides of the two side plates away from each other are fixedly connected to four fixed frames, and the sides of the two side plates away from each other are also fixedly connected to several connecting blocks. The outer wall of the conveying motor is fixedly connected to one of the side plates, and the output shaft of the conveying motor is fixedly connected to 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 to the two ends of the two side plates. The center plate is located between the two transmission rollers, and the two sides of the center plate are fixedly connected to the two side plates. The clamping conveyor belt is sleeved on the outside of the center plate and the two transmission rollers.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This type of conveying and guiding device for submarine cable laying uses a single-beam depth sounder to detect seabed bulges or depressions in advance. Combined with an angle-changing mechanism driven by a tilt motor, it can adjust the cable release angle in real time, preventing the cable from bending and hanging in the air due to sudden changes in the cable path. This improves laying accuracy and reduces the risk of the trencher tipping over. 2. This type of submarine cable laying conveyor guide device features an adaptive adjustment component that uses a linkage design between a curved rack plate and a reduction gear set to ensure that the single-beam echo sounder always remains vertically downward when the device angle changes. Combined with the depth compensation function of the hydraulic rod, it effectively eliminates the impact of changes in the ship's draft on measurement accuracy. 3. This type of submarine cable laying construction conveying guide device uses a contact sensor and a trigger block to monitor the device's adjustment angle threshold in real time. It uses an audible and visual alarm to prompt the operator to reset the device in time to prevent damage to the mechanism caused by over-adjustment. 4. This type of submarine cable laying construction conveying guide device has an electromagnet-driven extrusion block that can lock the gear position, enhancing the structural stability in a vibrating environment; 5. This type of submarine cable laying construction uses a conveying and guiding device. The cable-releasing motor drives the rope-laying pool to rotate through a gear transmission, ensuring that the submarine cable is always directly under the conveying mechanism. This avoids the jamming problem caused by cable twisting in traditional laying and improves the smoothness of system operation. 6. This type of submarine cable laying construction uses a conveying and guiding device. The upper and lower double-layer power components cooperate with the clamping conveyor belt to achieve two-way clamping and uniform speed transportation of the submarine cable. The guide wheel groups on both sides limit the lateral deviation of the submarine cable to avoid falling off or entanglement during transportation, ensuring continuous construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall appearance of the present invention from another perspective; Figure 3 This is a schematic diagram of the overall appearance of the components of the present invention after removing the deck of the laying ship; Figure 4 Detailed connection diagram of the support base, the first corner wheel and the conveying guide mechanism of the present invention; Figure 5 Detailed connection diagram of the support block and the angle changing mechanism of the present invention; Figure 6 Detailed connection diagram of the adaptive adjustment component and the single-beam echo sounder of the present invention; Figure 7 Detailed connection diagram of the L-shaped frame, arc-shaped rack plate, trigger block and other components of the present invention; Figure 8 Detailed connection diagram of the extension plate, guide assembly, deceleration assembly and other components of the present invention; Figure 9 For the present invention Figure 8 Exploded diagram of each component; Figure 10 For the present invention Figure 9 Enlarged schematic diagram of point A in the middle.

[0018] Figure: 1, laying ship deck; 2, rope pool; 3, support base; 4, first corner 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 base; 13, second corner wheel; 14, first gear; 15, fixing block; 16, hydraulic rod; 17, single beam echo sounder; 18, mounting port; 19, cable release motor; 20, support block; 21, mounting block; 22, trigger block; 2 3. Fixed frame; 24. Side wheels; 25. Side plate; 26. Conveying 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. Immersed pressure sensor; 38. Recovery motor; 39. Through port; 40. Electromagnet; 41. Guide ring; 42. Extrusion block; 43. Gear No. 5; 44. Gear No. 6. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1-10, a conveying and guiding device for submarine cable laying construction, comprising a rope-laying pool 2 located above the laying ship deck 1 and with the submarine cable placed inside, the bottom surface of the laying ship deck 1 is fixedly connected to a cable-releasing motor 19, the output shaft of the cable-releasing motor 19 passes through the laying ship deck 1 and is fixedly connected to a sixth gear 44, one end of the rope-laying pool 2 close to the laying ship deck 1 is fixedly connected to a fifth gear 43 meshing with the sixth gear 44, the upper surface of the laying ship deck 1 is fixedly connected to a support base 3 located in the middle of the rope-laying pool 2, the fifth gear 43 is sleeved and rotatably connected to the outside of the lower end of the support base 3, the upper end of the support base 3 is rotatably connected to a first corner wheel 4, the upper end of the support base 3 is also connected to a conveying and guiding mechanism, the upper surface of the laying ship deck 1 is also fixedly connected to two support blocks 20, an angle changing mechanism is connected between the two support blocks 20, the other end of the angle changing mechanism is connected to an adaptive adjustment component, and the other end of the adaptive adjustment component is connected to a single-beam depth sounder 17 located below the sea surface.

[0021] Special mention should be made here: By setting up the rope pool 2, the submarine cable can be stored in it before laying the submarine cable to prevent the submarine cable from scattering; By providing the cable-releasing motor 19, the sixth gear 44, and the fifth gear 43, the rotation of the submarine cable inside the rope-laying pool 2 can be controlled during the laying of the submarine cable, so that the submarine cable can always be located below the conveying and guiding mechanism to prevent it from getting entangled. By setting up a single-beam echo sounder 17, it is possible to emit acoustic waves to the seabed for distance measurement while the laying vessel is moving. This allows the trencher to detect relevant situations in advance before it reaches these raised or recessed positions, and then adjust the angle through the angle change mechanism, thereby reducing the probability of bending and hanging. The single-beam echo sounder 17 can be a model: HP1201 acoustic-inertial integrated single-beam echo sounder, the principle of which is: emitting a single narrow beam sound wave downward, receiving the reflected signal from the seabed, and calculating the depth by the sound speed and time difference. Of course, other models or other equipment and instruments with equivalent functions can also be used, and there is no specific limitation.

[0022] As a preferred solution of the present invention, the angle changing mechanism includes a tilting 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 tilting motor 9 is fixedly connected to the side wall of one of the support blocks 20, the output shaft of the tilting motor 9 is fixedly connected to one end of the transmission rod 30, the other end of the transmission rod 30 passes through the rotating block 10 and the two support blocks 20 and is rotatably connected to both support blocks 20, the transmission rod 30 is fixedly connected to the rotating block 10, the other end of the rotating block 10 is fixedly connected to one end of the extension rod 11, the other end of the extension rod 11 is fixedly connected to the bottom surface of the U-shaped seat 12, the other two ends of the U-shaped seat 12 are respectively rotatably connected to the two ends of the rotating shaft of the No. 2 corner wheel 13, the No. 2 corner wheel 13 is aligned with the No. 1 corner wheel 4, and the end of the U-shaped seat 12 away from the extension rod 11 is also connected to the adaptive adjustment component.

[0023] More specifically, by setting up an angle changing mechanism, when the single-beam echo sounder 17 detects that the mud height on the seabed is convex or concave, the U-shaped seat 12 and the second corner wheel 13 can be controlled to tilt up or down by the tilting motor 9 (because the lengths of the rotating block 10 and the extension rod 11 are fixed, when the tilting motor 9 is rotated, the U-shaped seat 12 and the second corner wheel 13 must rise or fall in an arc), thereby allowing the submarine cable (such as the one originally placed on the second corner wheel 13 to remain in a horizontal state) to be tilted up or down. Figure 1-Figure 3 ) can be tilted upward or downward, thereby changing the length of the submarine cable located on the seabed to adapt to the bulges or depressions of the seabed.

[0024] As a preferred solution of the present invention, the adaptive adjustment component includes an extension plate 34, a guide component, a deceleration component and a telescopic component. One end of the guide component is connected to the deck 1 of the laying ship, one end of the extension plate 34 is fixedly connected to the end of the U-shaped seat 12 away from the extension rod 11, one end of the deceleration component is connected to the extension plate 34, the other end of the deceleration component is connected to the guide component, the third end of the deceleration component is connected to the telescopic component, and the other end of the telescopic component is connected to the single-beam depth sounder 17.

[0025] More specifically, because the single-beam echo sounder 17 is connected to the telescopic component of the adaptive adjustment component, and the entire adaptive adjustment component will rotate as a whole following the tilt motor 9, the entire adaptive adjustment component will rotate. At this time, the single-beam echo sounder 17 can be kept vertically downward at all times through the adaptive adjustment component, thereby ensuring measurement accuracy.

[0026] As a preferred embodiment of the present invention, the guide assembly includes an L-shaped frame 6, an arcuate rack plate 7, a support rod 8 and a recovery motor 38. Two mounting openings 18 are provided on the bottom surface of the laying ship deck 1. The recovery motor 38 and the cable-releasing motor 19 are fixedly connected to the two mounting openings 18 respectively. The output shaft of the recovery motor 38 passes through the top of the laying ship 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 arcuate rack plate 7. The other end of the arcuate 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 ship deck 1 by bolts. The arcuate rack plate 7 is connected to the deceleration assembly.

[0027] More specifically, by setting up a guide assembly, when the deceleration assembly rotates following the tilt motor 9, the deceleration assembly, the telescopic assembly and the single-beam depth sounder 17 can be additionally controlled to rotate, thereby allowing the single-beam depth sounder 17 to always be vertically downward.

[0028] As a preferred solution of the present invention, the reduction assembly includes a number one gear 14, a number two gear 31, a number three gear 32, a number four gear 33 and three rotating rods 36, one end of each of the three rotating rods 36 is rotatably connected to the extension plate 34, the number one gear 14 and the number two gear 31 are fixedly connected to the outer wall of the first rotating rod 36, the number three gear 32 is fixedly connected to the outer wall of the second rotating rod 36, the number four gear 33 is fixedly connected to the outer wall of the third rotating rod 36, the number one gear 14 is meshed with the arc-shaped rack plate 7, the number three gear 32 is meshed with the number two gear 31 and the number four gear 33, and the number four gear 33 is connected to the telescopic assembly on the side away from the extension plate 34.

[0029] More specifically, by providing a speed reduction assembly, the speed of meshing rotation between the No. 1 gear 14 and the arc-shaped rack plate 7 can be reduced, so that the No. 4 gear 33 can always keep the single-beam depth sounder 17 vertical; It is important to note that: Figure 1-Figure 3 As shown, the arc of the arc-shaped rack plate 7 is 90°, so the angle of rotation of the first gear 14 around the arc-shaped rack plate 7 is also 90°. Therefore, if the single-beam echo sounder 17 is to remain vertical, the rotation angle must also be within the range of 90°. However, because the number of teeth on the arc-shaped rack plate 7 is much greater than the number of teeth on the first gear 14, when the first gear 14 rotates along the arc-shaped rack plate 7, the rotation angle of the single-beam echo sounder 17 needs to be changed by the reduction assembly to maintain compatibility. Furthermore, for example, the number of teeth of the arc-shaped rack plate 7 is 144, the number of teeth of the first gear 14, the third gear 32 and the fourth gear 33 are all 48, and the number of teeth of the second gear 31 is 4. In this way, when the first gear 14 moves along the teeth of the arc-shaped rack plate 7, such as rotating from top to bottom, when the first gear 14 rotates halfway on the arc-shaped rack plate 7 (such as Figure 1-Figure 3 ), at this time, the number of teeth of the No. 1 gear 14 is 144 / 2=72, and 72 / 48=1.5, which is equivalent to the No. 1 gear 14 rotating one and a half turns. Because the No. 1 gear 14 and the No. 2 gear 31 are connected to the same rotating rod 36, the No. 2 gear 31 also rotates one and a half turns, and the number of teeth of the No. 2 gear 31 rotates is 4*1.5=6. Then the No. 3 gear 32 meshing with the No. 2 gear 31 will also rotate 6 teeth, and 6 teeth is equivalent to one-eighth of the No. 3 gear 32 (48 / 6=8). Therefore, the No. 3 gear 32 will also rotate one-eighth of a turn, that is, 45°. Because the No. 4 gear 33 and the No. 3 gear 32 have the same number of teeth, after the No. 4 gear 33 rotates 6 teeth, it will be exactly the same as the position of the No. 1 gear 14 stopping at 45° at the center of the arc-shaped rack plate 7. At this time, the single-beam depth sounder 17 will still remain vertically downward; It should be noted that the above number of teeth is only an example. In actual application, the same purpose can be achieved by simply enlarging or reducing the number in the same proportion.

[0030] As a preferred solution of the present invention, the telescopic assembly includes a fixed block 15, a hydraulic rod 16 and an immersion pressure sensor 37, one end of the fixed block 15 is fixedly connected to the side of the fourth gear 33 away from the extension plate 34, the other end of the fixed 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.

[0031] More specifically, because the submarine cable has a certain weight and a large amount of submarine cable will be carried during one-time laying, the draft of the laying vessel at departure is different from the draft during the laying process. Since the principle of the single-beam echo sounder 17 is to "emit a single narrow beam sound wave downward, receive the reflected signal from the seabed, and calculate the depth by the sound speed and time difference", as the draft of the laying vessel becomes smaller, the depth of the single-beam echo sounder 17 below the sea surface will be different. This distance change may mislead the measurement accuracy of the single-beam echo sounder 17. Therefore, by setting a telescopic component at this time, the depth of the single-beam echo sounder 17 can be gradually adjusted as the submarine cable is laid and released to ensure that the distance between the single-beam echo sounder 17 and the sea level is always the same. The distance between the single-beam echo sounder 17 and the seabed is constant, so that it can more accurately identify and judge whether there are bulges or depressions on the seabed.

[0032] In summary, combined with Figures 1 to 10As shown, when the conveying and guiding device for submarine cable laying construction of the present invention is used, the end of the submarine cable away from the rope-laying pool 2 is first passed through the first corner wheel 4, then through the conveying and guiding mechanism, and finally through the second corner wheel 13, and then this end of the submarine cable can be placed on the seabed. After that, it is only necessary to set a trencher outside the end of the submarine cable on the seabed, and the normal laying of the submarine cable can be achieved as the laying vessel moves; During the laying of the submarine cable, because the single-beam echo sounder 17 is always vertically downward and located below the sea surface, the single-beam echo sounder 17 can continuously transmit sound waves toward the seabed to measure the depth. When a bulge or depression is detected on the seabed during the sounding process, the single-beam echo sounder 17 transmits an electrical signal to a PLC controller on the laying vessel (hereinafter referred to as the controller, and this is the prior art and will not be described in detail here), and then the controller immediately starts the tilt motor 9; After the tilt motor 9 is started, its output shaft rotates the transmission rod 30, which in turn rotates 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 along with the second corner wheel 13, thereby changing the length of the submarine cable originally located below the sea level. Then, as the laying vessel continues to move, the trencher moves to the previously detected raised or depressed part, and then the submarine cable with the changed length can be laid normally, thereby improving the laying effect and reducing the probability of trencher failure. At the same time, during the rotation of the U-shaped seat 12, the No. 1 gear 14 connected to the extension plate 34 on one side of the U-shaped seat 12 will mesh with the arc-shaped rack plate 7. Then, the No. 1 gear 14 rotates the No. 2 gear 31 through the first rotating rod 36. Then, the No. 2 gear 31 rotates the No. 3 gear 32, and the No. 3 gear 32 rotates the No. 4 gear 33, thereby ensuring that the single-beam depth sounder 17 and the hydraulic rod 16 can always be vertically downward. It should be noted that the rotation of the extension rod 11 drives the single-beam echo sounder 17 and the hydraulic rod 16 to maintain a vertical position and perform circumferential lifting. This is so that after use, when the tilt motor 9 drives the extension rod 11 to rotate and lift, the single-beam echo sounder 17 and the hydraulic rod 16 can be lifted out of the water at the same time. This prevents the single-beam echo sounder 17 from remaining submerged after use, thereby preventing the equipment from being reduced in accuracy and shortening its life due to salt corrosion, biological adhesion, and aging of the submarine cable.

[0033] In addition, as the submarine cable is laid, the draft of the laying vessel becomes smaller and smaller. In order to avoid affecting the measurement data deviation between the single-beam echo sounder 17 and the seabed depth, the controller starts the hydraulic rod 16 at this time, and the output end of the hydraulic rod 16 extends outward, thereby pushing the single-beam echo sounder 17 and the immersion pressure sensor 37 connected to the output end into the water together, so that the distance between the single-beam echo sounder 17 and the sea level is maintained in the same range, thereby reducing the error.

[0034] As a preferred solution of the present invention, the L-shaped frame 6 and the arc-shaped rack plate 7 are fixedly connected to the side of the U-shaped seat 12 with a mounting block 21, and the two mounting blocks 21 are fixedly connected to one side with a trigger block 22. The end of the extension plate 34 close to the U-shaped seat 12 is fixedly connected to a contact sensor 35 that cooperates with the two trigger blocks 22.

[0035] More specifically, by setting the mounting block 21, the trigger block 22 and the contact sensor 35, when the extension plate 34 rotates following the tilt motor 9, if the contact sensor 35 on the extension plate 34 contacts any trigger block 22, the contact sensor 35 will immediately transmit an electrical signal to the controller, and the controller will turn on the sound and light alarm on the laying ship to remind the crew that the adaptive adjustment angle of the submarine cable has reached the critical value, and it is necessary to immediately adjust the conveying speed of the cable-releasing motor 19 and the conveying guide mechanism to reset the tilt angle of the extension plate 34 and other components to avoid the subsequent discovery of bulges or depressions and the inability to make adaptive adjustments in time.

[0036] As a preferred solution of the present invention, a plurality of through openings 39 are formed through one end of the extension plate 34 close to the number one gear 14. The end of the extension plate 34 close to the number one gear 14 is also fixedly connected to a plurality of guide rings 41 respectively connected to the plurality of through openings 39. The inner walls of the plurality of through openings 39 are fixedly connected to the electromagnets 40. The inner walls of the plurality of guide rings 41 are slidably connected to the extrusion blocks 42. The plurality of extrusion blocks 42 are respectively aligned with the plurality of electromagnets 40, and ordinary magnets are provided inside the plurality of extrusion blocks 42. The ends of the plurality of extrusion blocks 42 away from the electromagnets 40 are all facing the number one gear 14, and an anti-slip pad is provided on the side of the extrusion blocks 42 facing the number one gear 14.

[0037] More specifically, by providing an electromagnet 40, a guide ring 41 and an extrusion block 42, and providing an ordinary magnet inside the extrusion block 42, when the extension plate 34 rotates with several gears, the laying vessel will inevitably shake as it moves on the sea surface. Therefore, when the tilt motor 9 is started, the electromagnet 40 will attract the extrusion block 42 in its own direction (i.e., inside the guide ring 41). After the tilt motor 9 has completed its self-angle adjustment, in order to prevent the second corner wheel 13 and other components from rotating due to vibration or other reasons, or to reduce the supporting load of the second corner wheel 13 and the tilt motor 9 and other components, the magnetic pole of the electromagnet 40 can be changed by the controller at this time, and then the extrusion block 42 can be squeezed along the guide ring 41 by the electromagnet 40 toward the side wall of the first gear 14, forcibly restricting the rotation of the first gear 14, thereby improving stability.

[0038] As a preferred solution of the present invention, the conveying guide mechanism includes two power assemblies, four fixed frames 23, several side wheels 24 and several connecting blocks 29. The bottom surfaces of the four fixed frames 23 are fixedly connected to the upper end of the support seat 3, and the two ends of the four fixed frames 23 are respectively connected to the two power assemblies. The two power assemblies are arranged parallel to each other above and below, and the several connecting blocks 29 are respectively connected to the two power assemblies. The upper and lower ends of the several side wheels 24 are respectively rotatably connected to the two connecting blocks 29.

[0039] More specifically, by setting up two upper and lower parallel power assemblies, the submarine cable can be clamped from the upper and lower sides of the submarine cable when it is transported, so that the submarine cable can be gradually and uniformly guided in the direction of the second corner wheel 13; and by setting a number of side wheels 24 on both sides of the two power assemblies, the submarine cable can be restricted to move in a specific direction and cannot fall from the side of the power assembly.

[0040] As a preferred solution of the present invention, the power assembly includes a clamping conveyor belt 5, a conveying motor 26, a center plate 28, two side plates 25 and two transmission rollers 27. The sides of the two side plates 25 away from each other are respectively fixedly connected to the four fixing frames 23, and the sides of the two side plates 25 away from each other are also respectively fixedly connected to a number of connecting blocks 29. The outer wall of the conveying motor 26 is fixedly connected to one of the side plates 25, and the output shaft of the conveying motor 26 is fixedly connected to 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 respectively rotatably connected to 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 to the two side plates 25. The clamping conveyor belt 5 is sleeved on the outside of the center plate 28 and the two transmission rollers 27.

[0041] More specifically, when laying a submarine cable, one only needs to pass one end of the submarine cable through the first corner wheel 4, then pass the submarine cable through the opening between the two clamping conveyor belts 5 and the side wheels 24, and then place the submarine cable on the second corner wheel 13 and extend it to the seabed; Then, as the cable-releasing motor 19 starts, the sixth gear 44 rotates, and then the sixth gear 44 rotates the fifth gear 43. The rotation of the fifth gear 43 causes the rope-setting pool 2 to rotate, and then the submarine cable inside the rope-setting pool 2 can be gradually released. At this time, the controller also starts the two conveying motors 26 at the same time. The output shafts of the two conveying motors 26 rotate the two connected transmission rollers 27. The two transmission rollers 27 cooperate with the other two transmission rollers 27 to rotate the clamping conveyor belt 5, so that the submarine cable between the two clamping conveyor belts 5 can be clamped to ensure uniform release. Special mention should be made here: The two conveying motors 26 are controlled uniformly by the controller, so stable output can be guaranteed without the situation where one is fast and the other is slow. The two clamping conveyor belts 5 are provided with anti-slip grooves or clamping bars on the side in contact with the submarine cable to increase the clamping friction and reduce the probability of the submarine cable loosening (the center plate 28 is provided inside the clamping conveyor belt 5 for the same purpose, to avoid the clamping force being affected due to the hollow space in the middle of the clamping conveyor belt 5).

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A conveying and guiding device for submarine cable laying, characterized in that: The invention comprises a rope laying pool (2) located above a laying ship deck (1) and having a submarine cable placed therein, wherein a cable-releasing motor (19) is fixedly connected to the bottom surface of the laying ship deck (1), an output shaft of the cable-releasing motor (19) passes through the laying ship deck (1) and is fixedly connected to a sixth gear (44), a fifth gear (43) meshing with the sixth gear (44) is fixedly connected to one end of the rope-releasing pool (2) close to the laying ship deck (1), and a support seat (3) located in the middle of the rope-releasing pool (2) is fixedly connected to the upper surface of the laying ship deck (1), and the fifth gear (43) meshing with the sixth gear (44) is fixedly connected to the upper surface of the laying ship deck (1). The gear (43) is sleeved and rotatably connected to the outside of the lower end of the support seat (3); the upper end of the support seat (3) is rotatably connected to a first corner wheel (4); the upper end of the support seat (3) is also connected to a conveying guide mechanism; the upper surface of the deck (1) of the laying ship is also fixedly connected to two support blocks (20); an angle changing mechanism is connected between the two support blocks (20); the other end of the angle changing mechanism is connected to an adaptive adjustment component; the other end of the adaptive adjustment component is connected to a single-beam depth sounder (17) located below the sea surface; The angle changing mechanism comprises a tilting 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), wherein the outer wall of the tilting motor (9) is fixedly connected to the side wall of one of the support blocks (20), the output shaft of the tilting motor (9) is fixedly connected to one end of the transmission rod (30), and the other end of the transmission rod (30) passes through the rotating block (10) and the two support blocks (20) and is rotationally connected to both the support blocks (20). The transmission rod (30) is fixedly connected to the rotating block (10), the other end of the rotating block (10) is fixedly connected to one end of the extension rod (11), the other end of the extension rod (11) is fixedly connected to the bottom surface of the U-shaped seat (12), the other two ends of the U-shaped seat (12) are respectively rotatably connected to 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 also connected to the adaptive adjustment component.

2. A conveying and guiding device for submarine cable laying according to claim 1, characterized in that: The adaptive adjustment component includes an extension plate (34), a guide component, a deceleration component and a telescopic component, one end of the guide component is connected to the deck (1) of the laying ship, one end of the extension plate (34) is fixedly connected to the end of the U-shaped seat (12) away from the extension rod (11), one end of the deceleration component is connected to the extension plate (34), the other end of the deceleration component is connected to the guide component, the third end of the deceleration component is connected to the telescopic component, and the other end of the telescopic component is connected to the single-beam echo sounder (17).

3. A conveying and guiding device for submarine cable laying according to claim 2, characterized in that: The guide assembly comprises an L-shaped frame (6), an arc-shaped rack plate (7), a support rod (8) and a recovery motor (38). Two mounting openings (18) are provided on the bottom surface of the laying ship deck (1). The recovery motor (38) and the cable-releasing motor (19) are fixedly connected to the two mounting openings (18) respectively. The output shaft of the recovery motor (38) passes through the top of the laying ship 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 ship deck (1) by bolts. The arc-shaped rack plate (7) is connected to the deceleration assembly.

4. A conveying and guiding device for submarine cable laying according to claim 3, characterized in that: The deceleration 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 to the 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) is meshed with the arc-shaped rack plate (7), the third gear (32) is meshed with the second gear (31) and the fourth gear (33), and the fourth gear (33) is connected to the telescopic assembly on a side away from the extension plate (34).

5. A conveying and guiding device for submarine cable laying according to claim 4, characterized in that: 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 to a side of the fourth gear (33) away from the extension plate (34), the other end of the fixed 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).

6. A conveying and guiding device for submarine cable laying according to claim 5, characterized in that: The L-shaped frame (6) and the arc-shaped rack plate (7) are fixedly connected to a mounting block (21) on one side close to the U-shaped seat (12), and the two mounting blocks (21) are fixedly connected to a trigger block (22) on one side. The extension plate (34) is fixedly connected to one end close to the U-shaped seat (12) with a contact sensor (35) that cooperates with the two trigger blocks (22).

7. A conveying and guiding device for submarine cable laying according to claim 6, characterized in that: The end of the extension plate (34) close to the first gear (14) is provided with a plurality of openings (39), and the end of the extension plate (34) close to the first gear (14) is fixedly connected to a plurality of guide rings (41) respectively connected to the plurality of openings (39), the inner walls of the plurality of openings (39) are fixedly connected to the electromagnets (40), the inner walls of the plurality of guide rings (41) are slidably connected to the extrusion blocks (42), the plurality of extrusion blocks (42) are respectively aligned with the plurality of electromagnets (40), and the interiors of the plurality of extrusion blocks (42) are provided with ordinary magnets, the ends of the plurality of extrusion blocks (42) away from the electromagnets (40) are all facing the first gear (14), and the side of the extrusion blocks (42) facing the first gear (14) is provided with an anti-slip pad.

8. A conveying and guiding device for submarine cable laying construction according to claim 7, characterized 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), wherein the bottom surfaces of the four fixing frames (23) are fixedly connected to the upper end of the support seat (3), the two ends of the four fixing frames (23) are respectively connected to the two power assemblies, the two power assemblies are arranged in parallel up and down, the plurality of connecting blocks (29) are respectively connected to the two power assemblies, and the upper and lower ends of the plurality of side wheels (24) are respectively rotatably connected to the two connecting blocks (29).

9. A conveying and guiding device for submarine cable laying according to claim 8, characterized in that: The power assembly includes a clamping conveyor belt (5), a conveying motor (26), a center plate (28), two side plates (25) and two transmission rollers (27), the sides of the two side plates (25) away from each other are fixedly connected to four fixing frames (23), and the sides of the two side plates (25) away from each other are also fixedly connected to a plurality of connecting blocks (29), the outer wall of the conveying motor (26) is fixedly connected to one of the side plates (25), the output shaft of the conveying motor (26) is fixedly connected to 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 to 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 fixedly connected to the two side plates (25), and the clamping conveyor belt (5) is sleeved on the outside of the center plate (28) and the two transmission rollers (27).

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