Trench digger retractable system

Abstract

The present invention provides a trenching machine retracting and releasing system, which belongs to the technical field of lifting machinery. The trenching machine retracting and releasing system includes a stern deck, an A-type frame, and an umbilical cable. The A-type frame is arranged at the top of one side of the stern deck close to the ship's side. An anti-swaying assembly is arranged on the A-type frame, a locking assembly is arranged below the anti-swaying assembly, and a terminal is arranged below the locking assembly. One end of the umbilical cable passes through the anti-swaying assembly and the locking assembly to connect with the terminal, and the other end is connected to a winch arranged at the top of one side of the stern deck away from the ship's side; an auxiliary lifting assembly is arranged on the anti-swaying assembly, and the auxiliary lifting assembly is connected to the locking assembly through a steel cable to assist in the retracting and releasing of the terminal; the locking assembly is used to lock the mushroom head on the umbilical cable. The trenching machine retracting and releasing system reduces the collision risk during the retracting and releasing process, improves the stability of the terminal retracting and releasing process, the umbilical cable does not need to bear weight in the air zone and the splash zone, and there is no heave compensation during the retracting and releasing process of the terminal, so as to avoid overload damage to the umbilical cable.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lifting machinery, and in particular to a trencher retraction and extension system. Background Art

[0002] In the construction of underwater engineering projects in the ocean, in order to avoid damage to the laid submarine pipelines, submarine cables, etc., trenching and burying are usually adopted for protection. At present, trenching machines are mainly used for submarine trenching operations.

[0003] In the prior art, before bottom trenching operations are performed, it is necessary to use a trencher retracting and launching system to place the trencher from the deck underwater. During the placement of the trencher, the trencher, as a terminal device, passes through the atmospheric zone, the splash zone and the full immersion zone in sequence. Some terminal devices are too heavy in the air. During the process of crossing the water surface, the load changes dramatically. Especially in severe sea conditions, the terminal devices will swing, rotate, etc., resulting in poor stability during the terminal device retraction and launching process, which may easily lead to retraction and launching failure. At the same time, directly retracting and launching the terminal device through the umbilical cable may easily cause damage to the umbilical cable, which in turn may cause terminal device failure, making it infeasible to directly retract and launch the terminal device through the umbilical cable. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a trencher retraction and deployment system to improve the stability of the terminal retraction and deployment process. The umbilical cable of the trencher does not need to bear weight in the air zone and the splash zone, thereby avoiding overload damage to the umbilical cable.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solutions:

[0006] A trencher retracting and releasing system comprises a stern deck, an A-type frame and an umbilical cable, wherein the A-type frame is arranged at the top end of the stern deck on one side close to the ship's side, the A-type frame is provided with an anti-swing assembly, a locking assembly is arranged below the anti-swing assembly, a terminal is arranged below the locking assembly, one end of the umbilical cable passes through the anti-swing assembly and the locking assembly in sequence and is connected to the terminal, and the other end of the umbilical cable is connected to a winch arranged at the top end of the stern deck on one side away from the ship's side, so as to retract and release the terminal;

[0007] The anti-swing assembly is provided with an auxiliary lifting assembly, and the auxiliary lifting assembly is connected to the locking assembly through a steel cable to assist in the retraction and extension of the terminal;

[0008] The umbilical cable is provided with a mushroom head, and the locking assembly is used for locking the mushroom head.

[0009] In an exemplary embodiment of the present disclosure, the A-frame includes a support, a first rotating arm, a second rotating arm, a first oil cylinder and a second oil cylinder;

[0010] The two supports are symmetrically arranged at the top of one side of the stern deck close to the ship's side, one end of the first rotating arm is rotatably connected to the top of the support, and one end of the second rotating arm is rotatably connected to the connection between the support and the first rotating arm;

[0011] One end of the first oil cylinder is rotatably connected to the first rotating arm, the other end of the first oil cylinder is rotatably connected to the second rotating arm, one end of the second oil cylinder is rotatably connected to the second rotating arm, and the other end is rotatably connected to the support;

[0012] One end of the two first rotating arms away from the second rotating arm is connected by a crossbeam.

[0013] In an exemplary embodiment of the present disclosure, the anti-swing assembly includes:

[0014] A first mounting frame, rotatably disposed on the top of the beam, wherein the first mounting frame is located between the two first rotating arms;

[0015] A U-shaped plate, arranged in the first mounting frame, the opening of the U-shaped plate faces the stern deck, and the U-shaped plate is rotatably connected to the top end of the first mounting frame via a rotating shaft;

[0016] a pulley rotatably disposed in the U-shaped plate, and the umbilical cable passes around the pulley;

[0017] Gas springs, two of which are symmetrically arranged on both sides of the U-shaped plate, and the gas springs are rotatably connected to the first mounting frame and the U-shaped plate respectively.

[0018] In an exemplary embodiment of the present disclosure, a first connecting rod is disposed on one side of the top end of the first mounting frame, and a second connecting rod is disposed on the other side of the top end of the first mounting frame;

[0019] Two first mounting seats are symmetrically arranged at the top of the crossbeam, a hydraulic cylinder is rotatably arranged on the first mounting seat, and a free end of the hydraulic cylinder is rotatably connected to the second connecting rod;

[0020] Two second mounting seats are symmetrically arranged on a side wall of the cross beam close to the first mounting frame, and two ends of the first connecting rod are rotatably connected to the second mounting seat on the same side through the connecting frame.

[0021] In an exemplary embodiment of the present disclosure, the auxiliary lifting assembly includes a second mounting frame, the second mounting frame is located below the first mounting frame, the second mounting frame is rotationally connected to the first mounting frame via a rotary drive, a limit ring is provided below the second mounting frame, and the limit ring is connected to the second mounting frame via a plurality of connecting rods;

[0022] Two rollers are rotatably arranged on one side wall of the second mounting frame, and the two rollers are symmetrically arranged on both sides of the umbilical cable; two driving motors are arranged on the other side wall of the second mounting frame, and the driving motors are used to drive the rollers on the same side to rotate;

[0023] One end of the steel cable is connected to the drum, and the other end of the steel cable passes through the limiting ring and is connected to the locking assembly, and the umbilical cable passes through the second mounting frame and the limiting ring in sequence.

[0024] In an exemplary embodiment of the present disclosure, a first gear is provided at one end of the drum close to the second mounting frame, two second gears are symmetrically provided between the two first gears, the second gears are rotatably provided on the second mounting frame, the two second gears are meshed with each other, and the two second gears are respectively meshed with the first gear on the same side.

[0025] In an exemplary embodiment of the present disclosure, first guide wheels are respectively arranged around the umbilical cable, and the first guide wheels are rotatably arranged at the bottom end of the second mounting frame;

[0026] A buffer pad is arranged at the bottom end of the limiting ring.

[0027] In an exemplary embodiment of the present disclosure, the locking assembly includes a third mounting frame, a plurality of buffer frames are arranged at intervals on the lower outer wall of the third mounting frame, and buffer strips are respectively arranged on the outer edge and the bottom end of the buffer frame;

[0028] Two parallel mounting plates are provided between two adjacent buffer frames, the mounting plates are provided on the third mounting frame, a limit plate is rotatably provided between the two mounting plates, one end of the limit plate extends into the third mounting frame and can reciprocate in the third mounting frame, a second guide wheel is rotatably provided at one end of the two mounting plates away from the third mounting frame, one end of the cable is movably connected to the limit plate through a U-shaped frame, the other end of the cable bypasses the bottom end of the second guide wheel and is connected to the float, and a limit rod is provided below the second guide wheel;

[0029] The float can drive the limit plate to move back and forth in the third mounting frame to lock the mushroom head.

[0030] In an exemplary embodiment of the present disclosure, third guide wheels are respectively provided on both sides of the umbilical cable, and the third guide wheels are rotatably provided on the top end of the third mounting frame.

[0031] In an exemplary embodiment of the present disclosure, connecting pieces are respectively provided at the top ends of both sides of the third mounting frame, and the two steel cables are respectively connected to the connecting pieces on the same side.

[0032] Beneficial effects of the present disclosure:

[0033] The present invention provides a trencher retracting and lowering system, which adjusts the retracting and lowering position of the terminal through an A-type frame with variable amplitude capability, thereby facilitating the retracting and lowering of the trencher as a terminal, reducing the risk of collision between the trencher and the ship, and improving the safety of the trencher retracting and lowering process; reducing the swinging or rotation and the like occurring during the terminal retracting and lowering process through an anti-swing component, thereby improving the stability of the terminal retracting and lowering process; retracting and lowering the terminal through an auxiliary lifting component in cooperation with an umbilical cable, so that the umbilical cable does not need to bear weight in the air zone and the splash zone of the terminal, and there is no heave compensation during the terminal retracting and lowering process, thereby avoiding damage caused by overload of the umbilical cable; and realizing the opening and locking of the mushroom head on the umbilical cable through a locking component, thereby facilitating the retracting and lowering of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0035] Figure 1 This is a structural schematic diagram of a trencher retracting and extending system in one embodiment of the present disclosure;

[0036] Figure 2 This is a schematic diagram of the structure of an A-type frame in one embodiment of the present disclosure;

[0037] Figure 3 This is a schematic structural diagram of an anti-swing assembly in one embodiment of the present disclosure;

[0038] Figure 4 This is a schematic structural diagram of an auxiliary lifting assembly in one embodiment of the present disclosure;

[0039] Figure 5 A rear view of an auxiliary lifting assembly in one embodiment of the present disclosure;

[0040] Figure 6 A cross-sectional view of an auxiliary lifting assembly in one embodiment of the present disclosure;

[0041] Figure 7 This is a schematic structural diagram of a locking assembly in one embodiment of the present disclosure;

[0042] Figure 8 It is a cross-sectional view of a locking assembly in one embodiment of the present disclosure.

[0043] Description of reference numerals:

[0044] 1. Stern deck; 2. A-type frame; 201. Support; 202. First rotating arm; 203. Second rotating arm; 204. First oil cylinder; 205. Second oil cylinder; 206. Beam; 3. Umbilical cable; 4. Terminal; 5. Steel cable; 6. Mushroom head; 7. First mounting frame; 701. First connecting rod; 702. Second connecting rod; 703. First mounting seat; 704. Hydraulic cylinder; 705. Second mounting seat; 706. Connecting frame; 8. U-shaped plate; 9. Rotating shaft; 10. Pulley; 11. Gas spring ; 12. Second mounting frame; 1201. Roller; 1202. First gear; 1203. Second gear; 1204. Driving motor; 13. Limiting ring; 1301. Buffer pad; 14. Connecting rod; 15. First guide wheel; 16. Third mounting frame; 17. Buffer frame; 18. Buffer strip; 19. Mounting plate; 20. Limiting plate; 21. Second guide wheel; 22. Cable; 23. U-shaped frame; 24. Third guide wheel; 25. Connecting piece; 26. Limiting rod; 27. Rotary drive; 28. Float. DETAILED DESCRIPTION

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0046] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0047] It's structural.

[0048] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0049] The present disclosure provides a trenching machine retracting and deploying system. Figure 1 , comprising a stern deck 1, an A-type frame 2 and an umbilical cable 3. The A-type frame 2 is arranged at the top of the side of the stern deck 1 close to the ship's side. An anti-swing component is arranged on the A-type frame 2, a locking component is arranged below the anti-swing component, and a terminal 4 is arranged below the locking component. One end of the umbilical cable 3 passes through the anti-swing component and the locking component in sequence to be connected with the terminal 4, and the other end of the umbilical cable 3 is connected to a winch arranged at the top of the side of the stern deck 1 away from the ship's side to retract and release the terminal 4; an auxiliary lifting component is arranged on the anti-swing component, and the auxiliary lifting component is connected to the locking component through a steel cable 5 to assist in retracting and releasing the terminal 4; a mushroom head 6 is arranged on the umbilical cable 3, and the locking component is used to lock the mushroom head 6.

[0050] In the embodiment of the present disclosure, the trencher retracting and releasing system is composed of a stern deck 1, an A-type frame 2, an umbilical cable 3, a terminal 4, a mushroom head 6, an anti-swing assembly, a locking assembly and an auxiliary lifting assembly. The A-type frame 2 is installed on the top of one side of the stern deck 1 close to the ship's side, so as to facilitate placing the terminal 4 from the deck in the sea water and adjusting the retracting and releasing position of the terminal 4. The anti-swing assembly is installed on the A-type frame 2, the auxiliary lifting assembly is installed at the bottom of the anti-swing assembly, and the locking assembly is installed below the auxiliary lifting assembly. The auxiliary lifting assembly is connected to the locking assembly through a steel cable 5, and the terminal Terminal 4 is located below the locking assembly, one end of the umbilical cable 3 passes through the anti-swing assembly, the auxiliary lifting assembly, the mushroom head 6 and the locking assembly in sequence to be connected to the terminal 4, the mushroom head 6 is fixedly mounted on the umbilical cable 3, the other end of the umbilical cable 3 is connected to the winch, and the winch is mounted on the top of the side of the stern deck 1 away from the side of the ship, the umbilical cable 3 is retracted and released by the winch, so as to realize the retraction and release of the terminal 4, the auxiliary lifting assembly assists the retraction and release of the terminal 4 through the steel cable 5, and the mushroom head 6 is opened or locked when the terminal 4 is immersed in or leaves the full immersion area through the cooperation of the auxiliary lifting assembly and the locking assembly.

[0051] Compared with the existing A-type frame device, the trencher retraction and deployment system adjusts the retraction and deployment position of the terminal through the A-type frame with variable amplitude capability, which facilitates the retraction and deployment of the trencher as the terminal, reduces the risk of collision between the trencher and the ship, and improves the safety of the trencher retraction and deployment process; reduces the swing or rotation and other phenomena that occur during the terminal retraction and deployment process through the anti-swing component, and improves the stability of the terminal retraction and deployment process; retracts and deploys the terminal through the auxiliary lifting component in conjunction with the umbilical cable, so that the umbilical cable does not need to bear weight in the air zone and the splash zone, and there is no heave compensation during the terminal retraction and deployment process, thereby avoiding overload and damage to the umbilical cable; the mushroom head on the umbilical cable is opened and locked through the locking component, thereby facilitating the retraction and deployment of the terminal.

[0052] In one embodiment of the present disclosure, see Figure 2The A-type frame 2 includes a support 201, a first rotating arm 202, a second rotating arm 203, a first oil cylinder 204 and a second oil cylinder 205; the two supports 201 are symmetrically arranged at the top of the side of the stern deck 1 close to the ship's side, one end of the first rotating arm 202 is rotatably connected to the top of the support 201, and one end of the second rotating arm 203 is rotatably connected to the connection between the support 201 and the first rotating arm 202; one end of the first oil cylinder 204 is rotatably connected to the first rotating arm 202, and the other end of the first oil cylinder 204 is rotatably connected to the second rotating arm 203, one end of the second oil cylinder 205 is rotatably connected to the second rotating arm 203, and the other end is rotatably connected to the support 201; the ends of the two first rotating arms 202 away from the second rotating arm 203 are connected by a crossbeam 206. In this way, the state of the A-type frame 2 can be adjusted, the retracted position of the terminal 4 can be adjusted, the collision risk of the terminal 4 can be reduced, and the retracted and released terminal 4 can be conveniently carried out.

[0053] Optionally, the first oil cylinder 204 and the second oil cylinder 205 are both luffing oil cylinders.

[0054] It can be understood that when the state of the A-type frame 2 needs to be adjusted, the second cylinder 205 is started to drive the first rotating arm 202, the second rotating arm 203, the first cylinder 204 and the beam 206 to rotate around the connection between the first rotating arm 202 and the support 201, and the first cylinder 204 is started to drive the first rotating arm 202 and the beam 206 to rotate around the connection between the second rotating arm 203 and the support 201, so as to adjust the position of the beam 206 and the retractable position of the terminal 4, so as to facilitate the retracting and extending of terminals 4 with different structures and sizes.

[0055] In one embodiment of the present disclosure, see Figure 3 The anti-sway assembly includes: a first mounting frame 7, which is rotatably arranged at the top of the crossbeam 206, and the first mounting frame 7 is located between the two first rotating arms 202; a U-shaped plate 8, which is arranged in the first mounting frame 7, the opening of the U-shaped plate 8 faces the stern deck 1, and the U-shaped plate 8 is rotatably connected to the top of the first mounting frame 7 through a rotating shaft 9; a pulley 10, which is rotatably arranged in the U-shaped plate 8, and the umbilical cable 3 passes around the pulley 10; and a gas spring 11, two gas springs 11 are symmetrically arranged on both sides of the U-shaped plate 8, and the gas springs 11 are rotatably connected to the first mounting frame 7 and the U-shaped plate 8 respectively. In this way, the volume of the first mounting frame 7 is reduced by the deflection connection between the pulley 10 and the first mounting frame 7; and the deflectable pulley 10 and the gas springs 11 on both sides thereof can prevent the umbilical cable 3 in different directions from having too large an angle with the pulley 10 when the winch retracts and releases the umbilical cable 3.

[0056] It can be understood that the umbilical cable 3 passes through the U-shaped plate 8, and a threading hole for the umbilical cable 3 to pass through is opened at the bottom end of the first mounting frame 7.

[0057] In one embodiment of the present disclosure, see Figure 3 and Figure 4 , a first connecting rod 701 is arranged on one side of the top of the first mounting frame 7, and a second connecting rod 702 is arranged on the other side of the top of the first mounting frame 7; two first mounting seats 703 are symmetrically arranged on the top of the crossbeam 206, a hydraulic cylinder 704 is rotatably arranged on the first mounting seat 703, and the free end of the hydraulic cylinder 704 is rotatably connected to the second connecting rod 702; two second mounting seats 705 are symmetrically arranged on a side wall of the crossbeam 206 close to the first mounting frame 7, and both ends of the first connecting rod 701 are rotatably connected to the second mounting seat 705 on the same side through the connecting frame 706. In this way, the state of the first mounting frame 7 can be adjusted according to the state of the A-type frame body 2, so that the anti-sway assembly always maintains a vertical state, which is convenient for retracting and releasing the terminal 4 through the umbilical cable 3.

[0058] It can be understood that after the state of the A-type frame 2 changes, the state of the anti-swing assembly installed on the A-type frame 2 also changes, and the hydraulic cylinder 704 is started to drive the first mounting frame 7 to rotate around the first connecting rod 701, so that the first mounting frame 7 always remains in a vertical state, which facilitates the umbilical cable 3 to retract and release the terminal 4, so that the terminal 4 remains stable during the retraction and release process, avoiding the terminal 4 from colliding with the ship.

[0059] In one embodiment of the present disclosure, see Figure 4 and Figure 5 The auxiliary lifting assembly includes a second mounting frame 12, which is located below the first mounting frame 7. The second mounting frame 12 is rotatably connected to the first mounting frame 7 through a slewing drive 27. A limit ring 13 is arranged below the second mounting frame 12, and the limit ring 13 is connected to the second mounting frame 12 through a plurality of connecting rods 14; two rollers 1201 are rotatably arranged on one side wall of the second mounting frame 12, and the two rollers 1201 are symmetrically arranged on both sides of the umbilical cable 3; two driving motors 1204 are arranged on the other side wall of the second mounting frame 12, and the driving motor 1204 is used to drive the rollers 1201 on the same side to rotate; one end of the steel cable 5 is connected to the roller 1201, and the other end of the steel cable 5 passes through the limit ring 13 to be connected to the locking assembly, and the umbilical cable 3 passes through the second mounting frame 12 and the limit ring 13 in sequence. In this way, the umbilical cable 3 is assisted by two symmetrically arranged steel cables 5 to retract and release the terminal 4, so that the umbilical cable 3 does not need to bear weight when the terminal 4 passes through the air zone and the splash zone. The umbilical cable 3 only needs to be tightened to prevent the umbilical cable 3 from being broken by the heave of the hull.

[0060] Optionally, threading holes for the umbilical cable 3 to pass through are respectively provided at the top and bottom ends of the second mounting frame 12 .

[0061] Optionally, one end of a portion of the plurality of connecting rods 14 is connected to the top of the limiting ring 13, and the other end is connected to the bottom of the second mounting frame 12; another portion of the plurality of connecting rods 14 is connected to the top of the limiting ring 13, and the other end is connected to the top of the second mounting frame 12. In this way, the stability of the auxiliary lifting assembly can be improved.

[0062] In one embodiment of the present disclosure, see Figure 6 The first gear 1202 is disposed at one end of the drum 1201 close to the second mounting frame 12, and two second gears 1203 are symmetrically disposed between the two first gears 1202. The second gears 1203 are rotatably disposed on the second mounting frame 12, and the two second gears 1203 are meshed with each other, and the two second gears 1203 are respectively meshed with the first gear 1202 on the same side. In this way, the two drums 1201 can rotate synchronously, and the two steel cables 5 can synchronously retract and release the terminal 4, thereby improving the stability of the retracting and releasing process of the terminal 4.

[0063] It can be understood that when the terminal 4 needs to be assisted in retracting and extending, the two driving motors 1204 are started to drive the two rollers 1201 to rotate, and the rollers 1201 drive the first gear 1202 connected thereto to rotate, and through the meshing transmission between the first gear 1202 and the second gear 1203, the two second gears 1203 are driven to rotate. Since the two second gears 1203 are meshed with each other, the two second gears 1203 rotate synchronously, and then drive the two first gears 1202 to rotate synchronously, so that the two rollers 1201 rotate synchronously, and the two steel cables 5 rise or fall synchronously, thereby realizing the synchronous retraction and extension of the terminal 4 by the two steel cables 5, so that the state of the terminal 4 will not change during the retraction and extension process, thereby improving the stability of the terminal 4.

[0064] In one embodiment of the present disclosure, see Figures 4 to 6 The umbilical cable 3 is provided with first guide wheels 15 around it, and the first guide wheels 15 are rotatably arranged at the bottom of the second mounting frame 12. In this way, the umbilical cable 3 can be guided to avoid shaking of the umbilical cable 3 during the retraction and release process, thereby improving the retraction and release stability of the terminal 4.

[0065] Optionally, a buffer pad 1301 is provided at the bottom end of the limiting ring 13. In this way, it is possible to avoid the collision between the terminal 4 and the limiting ring 13 during the process of the steel cable 5 retracting and releasing the terminal 4, thereby improving the safety of the process of retracting and releasing the terminal 4.

[0066] In one embodiment of the present disclosure, see Figure 7 and Figure 8The locking assembly includes a third mounting frame 16, and a plurality of buffer frames 17 are arranged at intervals on the outer wall of the lower part of the third mounting frame 16. The outer edge and the bottom end of the buffer frame 17 are respectively provided with buffer strips 18; two parallel mounting plates 19 are arranged between two adjacent buffer frames 17, and the mounting plate 19 is arranged on the third mounting frame 16. A limit plate 20 is rotatably arranged between the two mounting plates 19, and one end of the limit plate 20 extends into the third mounting frame 16 and can reciprocate in the third mounting frame 16. A second guide wheel 21 is rotatably arranged at one end of the two mounting plates 19 away from the third mounting frame 16, and one end of the cable 22 is movably connected to the limit plate 20 through a U-shaped frame 23, and the other end of the cable 22 bypasses the bottom end of the second guide wheel 21 and is connected to a floating ball 28, and a limit rod 26 is arranged below the second guide wheel 21; the floating ball 28 can drive the limit plate 20 to reciprocate in the third mounting frame 16 to lock the mushroom head 6. In this way, when the float 28 is immersed in the full immersion area, the float 28 rises due to the buoyancy to open the mushroom head 6; after the float 28 leaves the full immersion area, the buoyancy disappears and the float 28 descends to lock the mushroom head 6.

[0067] It can be understood that when the terminal 4 is located in the atmospheric zone, the locking assembly locks the mushroom head 6. When the umbilical cable 3 and the steel cable 5 lower the terminal 4 and the locking assembly to the full immersion area, the terminal 4 and the mushroom head 6 are lifted up a short distance through the umbilical cable 3. After the locking assembly enters the water, it is acted upon by buoyancy, that is, the float 28 floats up due to the buoyancy, driving the cable 22 to move upward around the second guide wheel 21. The cable 22 drives the limit plate 20 to rotate outward around the connection between the limit plate 20 and the mounting plate 19 through the U-shaped frame 23, so that the two limit plates 20 are separated from the mushroom head 6, and the locking assembly opens the mushroom. Head 6, and then continue to lower the terminal 4 through the umbilical cable 3; when the operation of the terminal 4 is completed, the terminal 4 and the locking assembly are gradually pulled out of the water through the umbilical cable 3 and the steel cable 5. When the float 28 leaves the full immersion area, the float 28 is no longer affected by the buoyancy, and the float 28 drops, causing the cable 22 to move downward around the second guide wheel 21, so that the limit plate 20 rotates inward around the connection between it and the mounting plate 19, so that the two limit plates 20 abut against the mushroom head 6, fix the neck of the mushroom head 6, realize the locking assembly locking the mushroom head 6, and then continue to lift the terminal 4 through the umbilical cable 3 and the steel cable 5.

[0068] Optionally, when the float 28 is completely immersed in seawater, the buoyancy of the float 28 remains unchanged; when the float 28 floats on the surface of the seawater, the float 28 has no pulling force on the limit plate 20 .

[0069] Optionally, the buffer strip 18 plays a buffering role, reducing the vibration generated when the locking assembly collides with the ship, and increasing the friction force when the locking assembly rotates.

[0070] Optionally, when the buoy 28 floats on the sea surface, no force is exerted on the limiting plate 20 .

[0071] Optionally, the limiting rod 26 is used to limit the position of the cable 22 to prevent the cable 22 from being separated from the second guide wheel 21 .

[0072] Optionally, the cross-section of the limit plate 20 is triangular, and a rotating rod is provided at the bottom end of the limit plate 20. The limit plate 20 is rotatably connected to the mounting plate 19 through the rotating rod. A torsion spring is sleeved on the rotating rod, one end of the torsion spring is connected to the limit plate 20, and the other end of the torsion spring is connected to the mounting plate 19.

[0073] In one embodiment of the present disclosure, see Figure 7 and Figure 8 , third guide wheels 24 are respectively arranged on both sides of the umbilical cable 3, and the third guide wheels 24 are rotatably arranged on the top of the third mounting frame 16. In this way, the umbilical cable 3 can be guided, and the third guide wheels 24 and the first guide wheels 15 work together to prevent the umbilical cable 3 from shaking during the retraction and release process, and further improve the retraction and release stability of the terminal 4.

[0074] In one embodiment of the present disclosure, see Figure 7 , the top ends of both sides of the third mounting frame 16 are respectively provided with connectors 25, and the two steel cables 5 are respectively connected to the connectors 25 on the same side. In this way, the third mounting frame 16 is connected to the steel cables 5 through the connectors 25, and the steel cables 5 are firmly connected to the third mounting frame 16, so as to prevent the umbilical cable 3 from being damaged or even broken when the terminal 4 passes through the splash zone or is too heavy in the air.

[0075] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A trenching machine retracting and releasing system, characterized in that: The invention comprises a stern deck (1), an A-type frame (2) and an umbilical cable (3), wherein the A-type frame (2) is arranged at the top of one side of the stern deck (1) close to the ship's side, the A-type frame (2) is provided with an anti-sway component, a locking component is arranged below the anti-sway component, a terminal (4) is arranged below the locking component, one end of the umbilical cable (3) passes through the anti-sway component and the locking component in sequence to be connected to the terminal (4), and the other end of the umbilical cable (3) is connected to a winch arranged at the top of one side of the stern deck (1) away from the ship's side to retract and release the terminal (4); An auxiliary lifting assembly is provided on the anti-swing assembly, and the auxiliary lifting assembly is connected to the locking assembly via a steel cable (5) to assist in the retraction and extension of the terminal (4); The umbilical cable (3) is provided with a mushroom head (6), and the locking assembly is used to lock the mushroom head (6); The locking assembly comprises a third mounting frame (16), a plurality of buffer frames (17) are arranged at intervals on the lower outer wall of the third mounting frame (16), and buffer strips (18) are respectively arranged on the outer edge and the bottom end of the buffer frame (17); Two parallel mounting plates (19) are arranged between two adjacent buffer frames (17), the mounting plates (19) are arranged on the third mounting frame (16), a limit plate (20) is rotatably arranged between the two mounting plates (19), one end of the limit plate (20) extends into the third mounting frame (16) and can reciprocate in the third mounting frame (16), a second guide wheel (21) is rotatably arranged at one end of the two mounting plates (19) away from the third mounting frame (16), one end of the cable (22) is movably connected to the limit plate (20) through a U-shaped frame (23), the other end of the cable (22) bypasses the bottom end of the second guide wheel (21) and is connected to a floating ball (28), and a limit rod (26) is arranged below the second guide wheel (21); The floating ball (28) can drive the limiting plate (20) to move back and forth in the third mounting frame (16) to lock the mushroom head (6).

2. The trencher retracting and extending system according to claim 1, characterized in that: The A-type frame (2) comprises a support (201), a first rotating arm (202), a second rotating arm (203), a first oil cylinder (204) and a second oil cylinder (205); The two supports (201) are symmetrically arranged at the top of one side of the stern deck (1) close to the ship's side, one end of the first rotating arm (202) is rotatably connected to the top of the support (201), and one end of the second rotating arm (203) is rotatably connected to the connection between the support (201) and the first rotating arm (202); One end of the first oil cylinder (204) is rotatably connected to the first rotating arm (202), the other end of the first oil cylinder (204) is rotatably connected to the second rotating arm (203), one end of the second oil cylinder (205) is rotatably connected to the second rotating arm (203), and the other end is rotatably connected to the support (201); One end of the two first rotating arms (202) away from the second rotating arm (203) is connected by a crossbeam (206).

3. The trencher retracting and extending system according to claim 2, characterized in that: The anti-swing component comprises: A first mounting frame (7) is rotatably mounted on the top of the crossbeam (206), and the first mounting frame (7) is located between the two first rotating arms (202); A U-shaped plate (8) is arranged in the first mounting frame (7), the opening of the U-shaped plate (8) faces the stern deck (1), and the U-shaped plate (8) is rotatably connected to the top end of the first mounting frame (7) via a rotating shaft (9); a pulley (10) rotatably disposed in the U-shaped plate (8), and the umbilical cable (3) passes around the pulley (10); Gas springs (11), two gas springs (11) are symmetrically arranged on both sides of the U-shaped plate (8), and the gas springs (11) are rotatably connected to the first mounting frame (7) and the U-shaped plate (8) respectively.

4. The trencher retracting and extending system according to claim 3, characterized in that: A first connecting rod (701) is provided on one side of the top end of the first mounting frame (7), and a second connecting rod (702) is provided on the other side of the top end of the first mounting frame (7); Two first mounting seats (703) are symmetrically arranged at the top of the crossbeam (206); a hydraulic cylinder (704) is rotatably arranged on the first mounting seat (703); and a free end of the hydraulic cylinder (704) is rotatably connected to the second connecting rod (702); Two second mounting seats (705) are symmetrically arranged on a side wall of the crossbeam (206) close to the first mounting frame (7), and the two ends of the first connecting rod (701) are rotatably connected to the second mounting seat (705) on the same side through the connecting frame (706).

5. The trencher retracting and extending system according to claim 3, characterized in that: The auxiliary lifting assembly comprises a second mounting frame (12), the second mounting frame (12) is located below the first mounting frame (7), the second mounting frame (12) and the first mounting frame (7) are rotationally connected via a rotary drive (27), a limit ring (13) is arranged below the second mounting frame (12), and the limit ring (13) and the second mounting frame (12) are connected via a plurality of connecting rods (14); Two rollers (1201) are rotatably arranged on one side wall of the second mounting frame (12), and the two rollers (1201) are symmetrically arranged on both sides of the umbilical cable (3); two driving motors (1204) are arranged on the other side wall of the second mounting frame (12), and the driving motors (1204) are used to drive the rollers (1201) on the same side to rotate; One end of the steel cable (5) is connected to the drum (1201), and the other end of the steel cable (5) passes through the limiting ring (13) to be connected to the locking assembly, and the umbilical cable (3) passes through the second mounting frame (12) and the limiting ring (13) in sequence.

6. The trencher retracting and extending system according to claim 5, characterized in that: A first gear (1202) is arranged at one end of the roller (1201) close to the second mounting frame (12); two second gears (1203) are symmetrically arranged between the two first gears (1202); the second gears (1203) are rotatably arranged on the second mounting frame (12); the two second gears (1203) are meshed with each other, and the two second gears (1203) are respectively meshed with the first gear (1202) on the same side.

7. The trencher retracting and extending system according to claim 5, characterized in that: The umbilical cable (3) is provided with first guide wheels (15) on all four sides, and the first guide wheels (15) are rotatably arranged at the bottom end of the second mounting frame (12); A buffer pad (1301) is provided at the bottom end of the limiting ring (13).

8. The trencher retracting and extending system according to claim 1, characterized in that: Third guide wheels (24) are respectively arranged on both sides of the umbilical cable (3), and the third guide wheels (24) are rotatably arranged on the top of the third mounting frame (16).

9. The trencher retracting and extending system according to claim 1, characterized in that: Connecting pieces (25) are respectively provided at the top ends of both sides of the third mounting frame (16), and the two steel cables (5) are respectively connected to the connecting pieces (25) on the same side.

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