Cutting, ditching and cable laying device

Abstract

The invention belongs to the technical field of underwater operation, and particularly relates to a cutting, ditching and cable laying device which comprises a cutting mechanism and a ditch cleaner, the cutting mechanism is arranged on one side of the ditch cleaner and moves synchronously with the ditch cleaner, and the cutting mechanism comprises a rotating part and cutting teeth arranged on the outer side of the rotating part; the device further comprises a spraying and flushing assembly and a cable pressing device, the spraying and flushing assembly is arranged on the ditch cleaning device and faces the rotating piece and / or the cutting teeth, and a cable guiding channel for a cable to move is formed between the cable pressing device and the side, away from the cutting mechanism, of the ditch cleaning device. According to the invention, surface damage caused by the fact that rock soil splashes backwards and hits the surface of the cable can be avoided, and the situation that the trench type does not meet the laying depth requirement due to the fact that the rock soil splashes backwards and is backfilled into a trench is avoided. The ditch cleaning device forms a sea ditch behind the cutting mechanism, the jet flow is sprayed out by the spraying assembly to wash the rotating part and the cutting teeth, the contact area of the cutting teeth and the position to be cut is ensured, jamming caused by rock soil can be prevented, and continuous and reliable ditching operation is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater operations, and in particular relates to a cutting, trenching and cable laying device. Background Art

[0002] When laying cables on the seabed, trenching and cable burying operations are required to ensure the safety and stability of the cables. First, a trench of a certain depth and width is opened on the seabed by a trenching device, and then the cables are laid in the trench, so that the cables are buried to a corresponding depth and buried to prevent them from being exposed. The more common trenching method is to use jet trenching, but for soil that is not easily broken by jets or rock layers on the seabed surface, in order to ensure that the trenching depth meets the laying requirements, mechanical cutting and trenching devices such as cutting wheels are generally used. However, in actual use, the rock and soil produced by cutting will be thrown to the rear side as the cutting wheel rotates. On the one hand, it is easy to hit the cable surface and cause damage to the cable surface. On the other hand, it is easy to backfill in the rear trench, resulting in the depth of the subsequent cable laying in the trench not meeting the requirements. If a baffle is set directly on the rear side of the cutting wheel, the rock and soil will also fall into the trench between the cutting wheel and the baffle, and as the trenching continues, some of the rock and soil are easily stuck between the cutting wheel and the baffle, resulting in problems such as jamming and abnormal operation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a cutting trenching and cable laying device suitable for hard soil or seabed with rock layers, ensuring that the trench type meets the laying requirements, reducing damage to the cable and avoiding jamming during cutting operations.

[0004] The present invention provides a trenching and cable laying device, comprising a cutting mechanism and a trench cleaner, wherein the cutting mechanism is arranged at one side of the trench cleaner and moves synchronously with the trench cleaner, and the cutting mechanism comprises a rotating member and cutting teeth arranged outside the rotating member, and when trenching is performed, the portion of the trench cleaner extending into the trench is located at the rear side of the rotating member in the trenching length direction, the portion of the trench cleaner extending into the trench has a size in the trenching width direction that is greater than or equal to the size of the rotating member in the trenching width direction, and the bottom of the trench cleaner is lower than the lowest point of the rotating member; It also includes a spray assembly and a cable press, wherein the spray assembly is arranged on the ditch cleaner and is arranged toward the rotating member and / or the cutting teeth, and the cable press is arranged on the side of the ditch cleaner away from the cutting mechanism, and a cable guide channel for the cable to move is formed between the cable press and the side of the ditch cleaner away from the cutting mechanism, and the cable press can move or rotate on the ditch cleaner to allow the cable to move into or out of the cable guide channel.

[0005] Further, the rotating member is a chain, and the ditch cleaner is provided with a driving wheel, a supporting wheel and a driven wheel. The chain is sleeved on the driving wheel, the supporting wheel and the driven wheel. The positions of the driven wheel and the supporting wheel are lower than that of the driving wheel, the position of the supporting wheel is higher than that of the driven wheel, and the supporting wheel is located in front of the driving wheel and the driven wheel in the direction of the ditching length. The part of the chain between the supporting wheel and the driven wheel is inclined relative to the plumb direction.

[0006] Further, it further includes a tension driving member. Both the driving wheel and the supporting wheel are arranged on the ditch cleaner. One end of the tension driving member is arranged on the ditch cleaner, and the driven wheel is arranged on the other end of the tension driving member. The driven wheel is driven to move by the tension driving member to adjust the tension of the chain.

[0007] Further, the part of the chain between the supporting wheel and the driven wheel is inclined relative to the plumb direction. The rotating direction of the chain is from the upper part of the ditch cleaner to the lower part of the ditch cleaner. The jetting assembly includes a first nozzle. There are two groups of the first nozzles. One group of the first nozzles is arranged on the upper part of the ditch cleaner and above the chain, and is inclined downward in the direction of the ditching length. And its jetting direction is opposite to the moving direction of the chain between the supporting wheel and the driven wheel. The other group of the first nozzles is arranged on the lower part of the ditch cleaner, and is inclined downward in the direction of the ditching length, and is arranged towards the lower end of the chain.

[0008] Further, the jetting assembly further includes a second nozzle. The second nozzle is arranged on the ditch cleaner and inside the chain. The jetting direction of the second nozzle faces the part of the chain between the supporting wheel and the driven wheel and is perpendicular to this part.

[0009] Further, the rotating member is a wheel body. The wheel body is annular. Cutting teeth are arranged on the outer ring of the wheel body. Teeth are arranged on the inner ring of the wheel body. The wheel body is rotatably connected to the ditch cleaner through a bracket, and the rotating connection part is located in the middle of the wheel body. A driving gear is further arranged on the upper part of the ditch cleaner, and the driving gear meshes with the upper end of the inner ring of the wheel body to drive the rotation of the wheel body.

[0010] Further, the rotating direction of the wheel body is from the upper part of the ditch cleaner to the lower part of the ditch cleaner. The jetting assembly includes a third nozzle. The third nozzle is arranged on the upper part of the ditch cleaner and faces the wheel body and the cutting teeth, and the third nozzle is located in front of the driving gear in the direction of the ditching length.

[0011] Further, several cutting teeth are arranged, and several cutting teeth are staggered on the outside of the rotating member.

[0012] Furthermore, the side of the trench cleaner facing away from the cutting mechanism is arc-shaped. When a cable guiding channel is formed between the cable pressing device and the side of the trench cleaner facing away from the cutting mechanism, the bottom of the cable pressing device is flush with the bottom of the trench cleaner, and both sides of the cable pressing device are flush with both sides of the trench cleaner. A cable bracket is arranged on the side of the trench cleaner facing away from the cutting mechanism. When the cutting mechanism digs a trench, the position of the cable bracket is higher than that of the cable pressing device, and the cable is laid into the trench along the cable bracket and the cable guiding channel.

[0013] Furthermore, it further includes a cable pressing driving member, which drives the cable pressing device to move or rotate on the trench cleaner to form a cable guiding channel or to open the space between the cable pressing device and the trench cleaner, and the acting force of the cable pressing driving member for moving or rotating the cable pressing device is less than the tension of the cable in the cable guiding channel.

[0014] The beneficial effects of the present invention are as follows: By arranging a trench cleaner at the rear side of the rotating member, it can play a role in blocking the rock and soil from splashing backward at the rear side of the rotating member. On the one hand, it can prevent the rock and soil from splashing backward and hitting the surface of the cable, resulting in surface damage. On the other hand, it can prevent the rock and soil from splashing backward and backfilling into the trench, resulting in the trench shape not meeting the laying depth requirements. At the same time, the part of the trench cleaner extending into the trench, under the action of its bottom and both sides, flattens the side wall and bottom of the trench as much as possible. During this process, the rock and soil remaining in the trench after trenching can also be pushed out or flattened under the action of the trench cleaner, shaping the trench to ensure that the subsequent cable can be laid to the target depth. The arrangement of the trench cleaner can also separate the cutting mechanism from the cable during the trench digging and cable laying operation, and cooperate with the cable pressing device to form a cable guiding channel during cable laying, which can prevent the cable from being cut by the cutting mechanism during the cable laying process and guide the laying of the cable to ensure its accurate laying into the trench. The jetting and flushing assembly can spray a jet flow to wash the rotating member and the cutting teeth, so that the rock and soil fall off, ensuring the contact area between the cutting teeth and the position to be cut in front, guaranteeing the effectiveness of the cutting operation, and also preventing the rock and soil from getting stuck between the rotating member and the trench cleaner, resulting in abnormal rotation of the rotating member, and ensuring the continuous and reliable progress of the trench digging operation. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the laying posture of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the recovery posture of the first embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the cable pressing device in the open state of the first embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the arrangement of the cutting teeth in the first embodiment of the present invention.

[0019] Figure 5Schematic diagram of the arrangement of nozzle 1 and nozzle 2 in the first embodiment of the present invention.

[0020] Figure 6 Schematic structural diagram of the laying attitude in the second embodiment of the present invention.

[0021] Figure 7 Schematic diagram of the arrangement of cutting teeth in the second embodiment of the present invention.

[0022] In the figure: 1, rotating member; 11, cutting teeth; 2, trench cleaner; 21, driving wheel; 22, supporting wheel; 23, driven wheel; 24, tensioning driving member; 25, cable bracket; 26, driving gear; 3, cable pressing device; 31, cable pressing boot; 32, side plate; 33, detection unit; 4, nozzle 1; 5, nozzle 2; 6, nozzle 3; 7, cable pressing driving member; 8, laying driving member 1; 9, laying driving member 2. Specific embodiment As Figures 1-7 shown, the present invention includes a cutting mechanism, a trench cleaner 2, a jet flushing assembly and a cable pressing device 3. The cutting mechanism is used for cutting a trench on the seabed, and is arranged on one side of the trench cleaner 2, and moves synchronously with the trench cleaner 2 along the trench length direction during the trench opening operation. The cutting mechanism includes a rotating member 1 and cutting teeth 11 arranged on the outside of the rotating member 1. When the rotating member 11 rotates, the cutting teeth 11 perform cutting operations on the seabed. The dimension of the rotating member 1 along its own rotation axis is the dimension in the trench width direction. Different dimensions of the rotating member 1 result in different widths of the trenches opened. During the trench opening operation, the bottom of the trench cleaner 2 is located behind the rotating member 1 in the trench length direction and is lower than the lowest point of the rotating member 1, ensuring that the bottom of the trench cleaner 2 can be as close as possible to the bottom of the trench or in contact with the bottom of the trench during the trench opening operation. Moreover, the dimension of the part of the trench cleaner 2 extending into the trench in the trench width direction is greater than or equal to the dimension of the rotating member 1 in the trench width direction, ensuring that both sides of the part of the trench cleaner 2 extending into the trench can be as close as possible to the trench side walls or in contact with the trench side walls.

[0024] The present invention also includes a spray assembly and a cable press 3, wherein the spray assembly is arranged on the ditch cleaner 2 and is arranged toward the rotating member 1 and / or the cutting teeth 11, and is used to spray a jet on the surface of the rotating member 1 and / or the cutting teeth 11 to flush off the broken soil and gravel. The cable press 3 is arranged on the side of the ditch cleaner 2 away from the cutting mechanism, and when the cable press 3 and the side of the ditch cleaner 2 away from the cutting mechanism are closed, a cable guide channel for the movement of the cable is formed between the cable press 3 and the side of the ditch cleaner 2, and the cable can fall into the trench behind the ditch cleaner 2 through the cable guide channel, and the cable press 3 can move or rotate on the ditch cleaner 2, so that the cable press 3 and the ditch cleaner 2 are opened to allow the cable to move in or out of the cable guide channel. Among them, in the present invention, the trenching length direction specifically refers to the advancing direction of the cutting mechanism during trenching, component one being located in front of component two in the trenching length direction specifically refers to that in the advancing direction of the cutting mechanism during trenching, component one passes the same position before component two, and component one being located behind component two in the trenching length direction specifically refers to that in the advancing direction of the cutting mechanism during trenching, component one passes the same position after component two. The trenching width direction specifically refers to the width direction of the trench formed, that is, the direction perpendicular to the trenching length direction in the transverse direction.

[0025] The cutting, trenching and cable laying device provided by the present invention can play a role in blocking the backward splashing of rock and soil on the rear side of the rotating member 1 by arranging a trench cleaner 2 on the rear side of the rotating member 1. On the one hand, it can prevent the rock and soil from splashing backward and hitting the cable surface to cause damage to the surface, and on the other hand, it can prevent the rock and soil from splashing backward and backfilling into the trench to cause the trench shape not meeting the laying depth requirements. At the same time, the part of the trench cleaner 2 extending into the trench is pushed flat as much as possible under the action of its bottom and both sides, and in this process, the rock and soil remaining in the trench after trenching can also be pushed out or flattened under the action of the trench cleaner 2, so that the trench is formed, ensuring that the subsequent cables can be laid to the target depth. At the same time, the setting of the trench cleaner 2 can also separate the cutting mechanism from the cable during the trenching and cable laying operation, and cooperate with the cable press 3 to form a cable guide channel when the cable is laid, which can prevent the cable from being cut by the cutting mechanism during the cable laying process, and guide the laying of the cable to ensure that it is accurately laid in the trench. In addition, the setting of the spray assembly can spray a jet to flush the rotating part 1 and the cutting teeth 11, so that the rock and soil on the rotating part 1 and the cutting teeth 11 fall off, ensuring the contact area between the cutting teeth 11 and the front position to be cut, ensuring the effectiveness of the cutting operation, and also preventing the rock and soil from being stuck between the rotating part 1 and the ditch cleaner 2, causing the rotating part 1 to be unable to rotate normally, ensuring that the ditching operation is carried out continuously and reliably.

[0026] In one embodiment of the present invention, Figures 1-5As shown, the rotating member 1 is a chain, and a transmission wheel set is arranged on the ditch cleaner 2. The transmission wheel set includes a driving wheel 21, a supporting wheel 22 and a driven wheel 23. The chain is sleeved on the driving wheel 21, the supporting wheel 22 and the driven wheel 23. The driving wheel 21 is driven to rotate by a power mechanism arranged on the ditch cleaner 2, so as to provide driving force for the rotation of the chain. The power mechanism can be an underwater motor or other mechanisms that can perform rotational drive underwater. The positions of the driven wheel 23 and the supporting wheel 22 are lower than that of the driving wheel 21. The position of the supporting wheel 22 is higher than that of the driven wheel 23, and the supporting wheel 22 is located in front of the driving wheel 21 and the driven wheel 23 in the ditch opening length direction. The driven wheel 23 is located behind the driving wheel 21 in the ditch opening length direction, so that the whole chain is inclined relative to the plumb direction, and the part of the chain between the supporting wheel 22 and the driven wheel 23 is inclined relative to the plumb direction, which is beneficial to the cutting and ditch opening operation. In this setting method, the position of the driving wheel 21 is the highest, so that the power mechanism connected thereto is at a higher position on the ditch cleaner 2, which is beneficial to protection. The supporting wheel 22 bears a large load. The driving wheel 21 is mainly used to transmit power and bears a small load, so the driving wheel 21 and the power mechanism are not easily damaged.

[0027] Based on the above embodiments, in a setting method of the present invention, a mounting plate is arranged on the ditch cleaner 2, and the driving wheel 21, the supporting wheel 22 and the driven wheel 23 are all rotatably arranged on the mounting plate. In another setting method of the present invention, a tension driving member 24 is further included. The tension driving member 24 is specifically selected as an oil cylinder. A mounting plate is arranged on the ditch cleaner 2. The driving wheel 21 and the supporting wheel 22 are rotatably arranged on the ditch cleaner 2. The cylinder end of the tension driving member 24 is arranged on the mounting plate of the ditch cleaner 2. A bracket is arranged on the moving end of the tension driving member 24, and the driven wheel 23 is rotatably arranged on the bracket at this end of the tension driving member 24. The driven wheel 23 is driven to move by the tension driving member 24 to adjust the tension of the chain and keep the chain in the best working state.

[0028] Based on the above embodiments, the part of the chain between the supporting wheel 22 and the driven wheel 21 is inclined relative to the plumb direction. The rotation direction of the chain is to rotate along the upper part of the ditch cleaner 2 in the direction from the upper part of the ditch cleaner 2 to the lower part of the ditch cleaner 2, that is, Figure 5 Counterclockwise rotation under the perspective. The jetting component includes a first nozzle 4. There are two groups of the first nozzles 4. One group of the first nozzles 4 is arranged on the upper part of the ditch cleaner 2 and above the chain, and the other group of the first nozzles 4 is arranged on the lower part of the ditch cleaner 2. The jetting directions of the two groups of the first nozzles 4 are both inclined downward in the ditch opening length direction and are both oriented towards the chain. The specific jetting direction is as Figure 5The direction of the arrow shown. Among them, the jet direction of this group of nozzles 4 located above the cleaning groove 2 is specifically set opposite to the movement direction of the chain between the support wheel 22 and the driven wheel 21, forming an opposing impact. The jet ejected by this group of nozzles 4 located above the cleaning groove 2, in cooperation with the movement of the chain, can effectively wash off the rock and soil adhering to the chain and the cutting teeth 11, preventing a large amount of rock and soil from entering between the cleaning groove 2 and the chain as the chain rotates and causing jamming. The jet direction of this group of nozzles 4 arranged below the cleaning groove 2 is specifically set towards the lower end of the chain, and is used to wash the jet ejected towards the lower end of the chain. On the one hand, it can prevent the rock and soil from splashing upwards and getting stuck between the cleaning groove 2 and the chain, and on the other hand, it can also prevent the rock and soil pushed forward by the action of the cleaning groove 2 from being squeezed upwards between the cleaning groove 2 and the chain.

[0029] Based on the above embodiments, the jetting and flushing assembly further includes a nozzle 5. The nozzle 5 is arranged on the connecting plate of the cleaning groove 2 and is located inside the chain. The jetting direction of the nozzle 5 is set towards the part of the chain between the support wheel 22 and the driven wheel 23, that is, the jet ejected by the nozzle 5 is towards the part of the chain between the support wheel 22 and the driven wheel 23 and is perpendicular to this part. Its jetting direction is specifically as shown in 5. Due to the structural characteristics of the chain, it is generally in a hollow state. The jet ejected by the nozzle 5 passes through the chain to wash the chain and the cutting teeth 11, causing the rock and soil to fall off. At the same time, it can form a jet that is inclined downwards along the length direction of the trench, assisting the chain in trench opening operations and also flushing away the rock and soil generated by trench opening.

[0030] Among them, the nozzle 4 and the nozzle 5 are connected to the water pump mechanism through pipelines, and the water pump mechanism provides jets that meet the water pressure requirements for the nozzle 4 and the nozzle 5.

[0031] In another embodiment of the present invention, as Figure 5 and Figure 6As shown, the rotating member 1 is a wheel body, which is annular. The cutting teeth 11 are arranged on the outer circle of the wheel body, and teeth are arranged on the inner circle of the wheel body. The wheel body is rotatably connected to the trench cleaner 2 through a bracket, and the rotation connection is located in the middle of the wheel body to ensure that the wheel body rotates around its own axis. A driving gear 26 is also rotatably arranged on the upper part of the trench cleaner 2. The driving gear 26 meshes with the upper end of the inner circle of the wheel body. The driving gear 26 is driven to rotate by a power mechanism arranged on the trench cleaner 2 to provide driving force for the wheel body. This power mechanism can be an underwater motor or other mechanisms that can perform rotational drive underwater. In this setting method, the position of the driving gear 26 is relatively high, so the corresponding power mechanism can also be arranged at a relatively high position, which is beneficial for protection. At the same time, a rotational support has been provided in the middle of the wheel body. Therefore, the driving gear 26 is mainly used to transmit torque and bears less load, and it is less likely to be damaged by the power mechanism. Among them, the number of driving gears 26 can be set to one. In the present invention, preferably two driving gears 26 are provided. The two driving gears 26 are arranged at intervals and both mesh with the upper end of the inner circle of the wheel body to jointly provide power for the wheel body. This setting method can reduce the size of a single driving gear 26 while meeting the strength requirements, so that it can be kept at the upper end of the inner circle of the wheel body, which is beneficial for protection.

[0032] Based on the above embodiments, the rotation direction of the wheel body is to rotate along the upper part of the trench cleaner 2 in the direction from the upper part of the trench cleaner 2 to the lower part of the trench cleaner 2, that is Figure 6 in the clockwise direction under this perspective. The jetting assembly includes a nozzle three 6. The nozzle three 6 is arranged on the upper part of the trench cleaner 2 and is specifically located on the side of the wheel body, and its jetting direction is set towards the wheel body and the cutting teeth 11. Its jetting direction is specifically as Figure 7 shown by the arrow direction. As Figure 6 shown, the nozzle three 6 is located in front of the driving gear 26 in the trench opening length direction, so that it can wash the wheel body and the cutting teeth 11 before the driving gear 26. On the one hand, it can prevent rock and soil from getting stuck between the wheel body and the trench cleaner, and on the other hand, it can avoid the interference of rock and soil with the meshing transmission between the driving gear 26 and the wheel body.

[0033] Among them, the nozzle three 6 is connected to the water pump mechanism through a pipeline, and the water pump mechanism provides a jet flow that meets the water pressure requirements for the nozzle three 6.

[0034] Based on the above two embodiments, several cutting teeth 11 are arranged. Since it is necessary to ensure that the depth of the trench opened during the trench opening operation meets the laying requirements, no matter the rotating member 1 is a chain or a wheel body, it needs to have a certain width dimension in the trench opening width direction, such as Figure 4 and Figure 7As shown, several cutting teeth 11 are staggeredly arranged on the outside of the rotating member 1, and several cutting teeth 11 can also be arranged in at least two circles on the outside of the rotating member 1, so that when the rotating member 1 rotates, the rock and soil within the target cutting width on the seabed can contact the cutting teeth 11, ensuring that the trenching width meets the requirements.

[0035] When rock and soil are stuck between the ditch cleaner 2 and the rotating member 1, the rotating member 1 can also be driven to rotate in the opposite direction to push the rock and soil out.

[0036] The side of the ditch cleaner 2 away from the cutting mechanism is arc-shaped, which is convenient for matching the curvature when laying cables. When a cable guide channel is formed between the cable presser 3 and the side of the ditch cleaner 2 away from the cutting mechanism, the cable presser 3 is located at the lower part of the side of the ditch cleaner 2 away from the cutting mechanism, and the bottom of the cable presser 3 is flush with the bottom of the ditch cleaner 2, and the two sides of the cable presser 3 are flush with the two sides of the ditch cleaner 2. While playing the role of cable pressing, it can also further improve and maintain the trench shape after the ditch cleaner 2, ensuring that the trench shape meets the laying requirements before the cable sinks to the bottom of the trench. A cable bracket 25 is provided on the side of the ditch cleaner 2 away from the cutting mechanism. When the cutting mechanism digs the trench, the position of the cable bracket 25 is higher than the cable presser 3, and the cable is laid into the trench along the cable bracket 25 and the cable guide channel. This arrangement can ensure that the cable is laid in the trench along the upper part of the ditch cleaner 2 and along the cable guide channel, avoiding the cable hanging on the side of the ditch cleaner 2 and being scratched by the cutting mechanism.

[0037] The cable bracket 25 is rotatably arranged on the ditch cleaner 2 and driven by a corresponding power part, or the side of the cable bracket 25 can be driven to rotate by a corresponding power part to have the function of flipping and releasing the cable. When the underwater operation system detects that it is impossible to continue to dig trenches and lay cables or other abnormal conditions, the cable press 3 is opened, and the cable bracket 25 releases the cable accordingly. The cable press 3 specifically includes a cable press shoe 31 and side plates 32 fixedly arranged on both sides of the cable press shoe 31. The two sides of the cable press 3 are two side plates 32. The curvature of one side of the two side plates 32 close to the ditch cleaner 2 matches the curvature of one side of the ditch cleaner 2 away from the cutting mechanism. The bottom of the two side plates 32 is the bottom of the cable press 3. The cable press shoe 3 is hollowed out, and the cable press shoe 3 is provided with a detection unit 33, which is electrically connected to the control system of the underwater operation system and is used to detect whether the cable is located below the cable press shoe 3. The detection unit 33 can be a proximity sensor or other detection element.

[0038] The present invention further comprises a cable pressing driving member 7, which drives the cable pressing device 3 to move or rotate on the ditch cleaner 2 to form a cable guide channel or to open a space between the cable pressing device 3 and the ditch cleaner 2. Figure 3As shown, this is the open state between the cable press 3 and the trench cleaner 2. The acting force of the cable press driving member 7 to move or rotate the cable press 3 is less than the tension of the cable in the cable guiding channel. When the tension of the cable in the cable guiding channel is relatively large, the cable press 3 automatically moves or rotates to open under the action of the cable tension, preventing the cable from being overloaded. Among them, the cable press 3 is hinged to the outside of the trench cleaner 2 through a link mechanism. The cable press driving member 7 is specifically an oil cylinder, one end of which is hinged to the top of the trench cleaner 2 and the other end is hinged to the cable press 3.

[0039] The present invention further includes a laying and retrieving mechanism, which includes a first laying driving member 8 and a second laying driving member 9. The first laying driving member 8 and the second laying driving member 9 are specifically both oil cylinders. The cylinder body ends of the first laying driving member 8 and the second laying driving member 9 are hinged to the fuselage main body of the underwater operation system, and the moving ends are hinged to different positions on the trench cleaner 2, such as Figure 2 As shown, this is the retrieving state of the device. At this time, the whole device is inclined. The moving ends of the first laying driving member 8 and the second laying driving member 9 are both in the fully retracted state, as Figure 2 As shown, this is the lowest position of the laying state of the device. At this time, the bottoms of the trench cleaner 2 and the cable press 3 are both horizontal. From the retrieving state to Figure 2 the laying state shown, the extending lengths of the moving ends of the first laying driving member 8 and the second laying driving member 9 are different. And during the laying process, by adjusting the extending lengths of the moving ends of the first laying driving member 8 and the second laying driving member 9, the laying height of the device can be adjusted while keeping the bottoms of the trench cleaner 2 and the cable press 3 horizontal.

[0040] Those of ordinary skill in the art should understand that: The discussion of any above embodiment is only exemplary and is not intended to imply that the protection scope of this application is limited to these examples; Under the idea of this application, the technical features between the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of this application as described above. For the sake of brevity, they are not provided in detail.

[0041] One or more embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application shall be included within the protection scope of this application.

Claims

1. A cable cutting, trenching and laying device, characterized in that: The invention comprises a cutting mechanism and a ditch cleaner (2), wherein the cutting mechanism is arranged on one side of the ditch cleaner (2) and moves synchronously with the ditch cleaner (2), and the cutting mechanism comprises a rotating member (1) and a cutting tooth (11) arranged outside the rotating member (1). When performing a ditching operation, the portion of the ditch cleaner (2) extending into the ditch is located at the rear side of the rotating member (1) in the ditching length direction, the portion of the ditch cleaner (2) extending into the ditch has a size in the ditching width direction that is greater than or equal to the size of the rotating member (1) in the ditching width direction, and the bottom of the ditch cleaner (2) is lower than the lowest point of the rotating member (1); The invention also comprises a spray assembly and a cable press (3), wherein the spray assembly is arranged on the ditch cleaner (2) and is arranged toward the rotating member (1) and / or the cutting tooth (11), and the cable press (3) is arranged on a side of the ditch cleaner (2) away from the cutting mechanism, and a cable guide channel for the cable to move is formed between the cable press (3) and a side of the ditch cleaner (2) away from the cutting mechanism, and the cable press (3) can move or rotate on the ditch cleaner (2) to allow the cable to move into or out of the cable guide channel.

2. The cable cutting, trenching and laying device according to claim 1, characterized in that The rotating member (1) is a chain. The ditch cleaner (2) is provided with a driving wheel (21), a supporting wheel (22) and a driven wheel (23). The chain is sleeved on the driving wheel (21), the supporting wheel (22) and the driven wheel (23). The driven wheel (23) and the supporting wheel (22) are located lower than the driving wheel (21), the supporting wheel (22) is located higher than the driven wheel (23), and the supporting wheel (22) is located in front of the driving wheel (21) and the driven wheel (23) in the ditching length direction. The portion of the chain located between the supporting wheel (22) and the driven wheel (23) is inclined relative to the plumb bob direction.

3. The cable cutting, trenching and laying device according to claim 2, characterized in that The device also comprises a tensioning drive member (24), wherein the driving wheel (21) and the supporting wheel (22) are both arranged on the ditch cleaner (2), one end of the tensioning drive member (24) is arranged on the ditch cleaner (2), and the driven wheel (23) is arranged on the other end of the tensioning drive member (24), and the driven wheel (23) is driven to move by the tensioning drive member (24) to adjust the tension of the chain.

4. The cable cutting, trenching and laying device according to claim 2 or 3, characterized in that The portion of the chain located between the supporting wheel (22) and the driven wheel (21) is arranged to be inclined relative to the plumb bob direction. The rotation direction of the chain is from the upper part of the ditch cleaner (2) to the lower part of the ditch cleaner (2). The spray assembly comprises a nozzle one (4). The nozzle one (4) has two groups, wherein one group of nozzles one (4) is arranged at the upper part of the ditch cleaner (2) and above the chain, and is inclined downward along the ditching length direction, and its jet direction is arranged relative to the direction in which the chain moves between the supporting wheel (22) and the driven wheel (21); the other group of nozzles one (4) is arranged at the lower part of the ditch cleaner (2), and is inclined downward along the ditching length direction, and is arranged toward the lower end of the chain.

5. The cable cutting, trenching and laying device according to claim 4, characterized in that The spray assembly further comprises a second nozzle (5), which is arranged on the ditch cleaner (2) and located inside the chain, and the spray direction of the second nozzle (5) is toward the portion of the chain located between the supporting wheel (22) and the driven wheel (23), and is perpendicular to the portion.

6. The cable cutting, trenching and laying device according to claim 1, characterized in that The rotating member (1) is a wheel body. The wheel body is annular. The cutting teeth (11) are arranged on the outer circle of the wheel body. Teeth are arranged on the inner circle of the wheel body. The wheel body is rotatably connected to the trench cleaner (2) through a bracket, and the rotation connection is located in the middle of the wheel body. A driving gear (26) is further arranged on the upper part of the trench cleaner (2). The driving gear (26) meshes with the upper end of the inner circle of the wheel body to drive the rotation of the wheel body.

7. The cable cutting, trenching and laying device according to claim 6, characterized in that The rotation direction of the wheel body is from the upper part of the trench cleaner (2) towards the lower part of the trench cleaner (2). The jetting assembly includes a nozzle three (6). The nozzle three (6) is arranged on the upper part of the trench cleaner (2) and is oriented towards the wheel body and the cutting teeth (11), and the nozzle three (6) is located in front of the driving gear (26) in the trench opening length direction.

8. The cable cutting, trenching and laying device according to any one of claims 1-3, 5-7, characterized in that A plurality of the cutting teeth (11) are arranged, and the plurality of cutting teeth (11) are staggered on the outer side of the rotating member (1).

9. The cable cutting, trenching and laying device according to any one of claims 1-3, 5-7, characterized in that The side of the trench cleaner (2) facing away from the cutting mechanism is arc-shaped. When a cable guiding channel is formed between the cable presser (3) and the side of the trench cleaner (2) facing away from the cutting mechanism, the bottom of the cable presser (3) is flush with the bottom of the trench cleaner (2), and both sides of the cable presser (3) are flush with both sides of the trench cleaner (2). A cable bracket (25) is arranged on the side of the trench cleaner (2) facing away from the cutting mechanism. When the cutting mechanism opens a trench, the position of the cable bracket (25) is higher than that of the cable presser (3), and the cable is laid into the trench along the cable bracket (25) and the cable guiding channel.

10. The cable cutting, trenching and laying device according to claim 9, characterized in that It further includes a cable pressing driving member (7). The cable pressing driving member (7) drives the cable presser (3) to move or rotate on the trench cleaner (2) to form a cable guiding channel or to open between the cable presser (3) and the trench cleaner (2), and the acting force for the cable pressing driving member (7) to drive the cable presser (3) to move or rotate is less than the tension of the cable in the cable guiding channel.

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