Deep-sea payload salvage and recovery apparatus and method of operation

Abstract

The present application relates to a kind of deep-sea payload salvage recovery device and operating method, including welding on the deck winch of ship, fixed with deck winch hoisting system A frame on the deck of ship, fixed pulley is installed on deck winch hoisting system A frame, armored cable passes through fixed pulley and is fixed on the winch of hoisting winch, the winch of hoisting winch rotates, the salvage recovery task of deep-sea payload is realized by armored cable driving deep-sea payload salvage recovery device up and down movement;Rotary jetting and absorbing ditch tool and adjustable angle jetting and absorbing ditch holding lifting tool are installed below deep-sea payload salvage recovery device, it has a certain range of mobility, accurate positioning, jetting and absorbing mud, burying object holding salvage recovery capacity, meet the use requirement, reduce cost.

Description

Technical Field

[0001] This invention relates to the field of deep-sea salvage rotating device technology, and in particular to a deep-sea payload salvage and recovery device and its operation method. Background Technology

[0002] Currently, the salvage and recovery of high-value buried underwater objects using existing technologies are all carried out in shallow or near-shore waters. These high-value buried objects, such as oil pipelines and cables, are often recovered by towing them with surface vessels and anchoring them for retrieval. However, the salvage and recovery of high-value buried objects in the deep sea is almost non-existent. Once these objects are damaged, they are often not salvaged, which not only results in high economic costs and waste of resources, but also reduces economic efficiency. Furthermore, the scrapping of underwater equipment increases environmental pollution. Summary of the Invention

[0003] In response to the shortcomings of the existing production technologies, the applicant provides a deep-sea payload salvage and recovery device and its operating method, which enables the device to have a certain range of mobility, precise positioning, spraying and suction of mud, and the ability to hold and salvage buried objects, thereby meeting the usage requirements and reducing costs.

[0004] The technical solution adopted in this invention is as follows:

[0005] A deep-sea payload salvage and recovery device includes a lifting winch welded to the ship's deck, a deck winch lifting system A frame fixed on the ship's deck, a fixed pulley installed on the deck winch lifting system A frame, an armored cable passing through the fixed pulley and fixed to the winch of the lifting winch, the winch of the lifting winch rotates, and drives the deep-sea payload salvage and recovery device to move up and down through the armored cable to achieve the task of salvaging and recovering the deep-sea payload;

[0006] A rotary jet suction trench tool and an adjustable-angle jet suction trench clamping and lifting tool are installed below the deep-sea payload salvage and recovery device.

[0007] The specific structure of the rotary jetting suction trenching tool is as follows: it includes a rotating mechanism structural frame fixed below the deep-sea payload salvage and recovery device. The rotating mechanism is installed inside the rotating mechanism structural frame. There are hydraulic cylinders for maintaining balance at the four corners of the rotating mechanism. The rotation of the rotating mechanism can realize the rotation of the hydraulic cylinders for maintaining balance. A jetting suction pump is installed below each hydraulic cylinder for maintaining balance. The rotation of the hydraulic cylinder for maintaining balance can drive the rotation of the first jetting suction pump.

[0008] The specific structure of the adjustable angle spray suction trench clamping and lifting tool is as follows: a clamping cylinder is installed on the side of the cylinder that maintains the balance posture, and a No. 2 spray suction mud pump is installed at the output end of the clamping cylinder.

[0009] Its further technical solution lies in:

[0010] The specific structure of the rotating mechanism is as follows: it includes a telescopic cylinder fixed on the rotating mechanism structural frame. The output end of the telescopic cylinder is equipped with a main connecting rod by fasteners. The extension and retraction of the telescopic cylinder can realize the left and right movement of the main connecting rod. Hinged wheels are respectively installed at both ends of the main connecting rod. A secondary connecting rod is installed on the hinged wheel. The secondary connecting rod is perpendicular to the main connecting rod in space. The left and right movement of the main connecting rod can realize the forward and backward movement of the two secondary connecting rods. Rotary cams are eccentrically installed at both ends of each secondary connecting rod. The rotary cams are provided with slot keys. The forward and backward movement of the two secondary connecting rods can realize the rotational movement of the four slot keys.

[0011] The main connecting rod has thin rods extending from both ends, and the ends of the thin rods are fitted with hinged wheels via fasteners.

[0012] The hinged wheel has a triangular structure.

[0013] The articulated wheel is eccentrically mounted to the end of the main connecting rod.

[0014] The key slot is used to install the hydraulic cylinder to maintain its balanced posture.

[0015] An operation method for a deep-sea payload salvage and recovery device includes the following working process:

[0016] When salvaging and recovering deep-sea payloads:

[0017] Once the surface support vessel reaches the designated sea area, a rotary jet suction dredging tool is first installed below the deep-sea payload salvage and recovery device. From the deck, controlled by the control system, the hoisting winch releases the armored cable via a fixed pulley. This lowers the deep-sea payload salvage and recovery device, carrying the rotary jet suction dredging tool, above the designated target deep-sea payload location. The control system then powers the rotary jet suction dredging tool, which begins jetting and suctioning mud from both sides of the deep-sea payload. The sludge suction operation involves excavating sinkholes on both sides of the deep-sea payload to facilitate the later construction of adjustable-angle spraying and suction trenches for gripping and lifting tools. Simultaneously, the telescopic cylinder continuously extends and retracts, causing the main connecting rod to move laterally. The main connecting rod drives the hinge wheel to rotate, which in turn drives the secondary connecting rod to move back and forth. The secondary connecting rod drives the rotating cam to rotate, which in turn drives the retaining key to rotate. The retaining key then drives the cylinder maintaining balance to rotate, thereby driving the four No. 1 spraying and suction pumps to rotate, thus enabling the four No. 1 spraying and suction pumps to rotate, spray, and suction simultaneously.

[0018] Once the sinkholes dug on both sides of the deep-sea payload can accommodate the No. 2 jet suction pump of the adjustable angle jet suction trench clamping lifting tool, the lifting winch on the deck starts to retract the armored cable through the fixed pulley under the control of the control system. Thus, the deep-sea payload salvage and recovery device carries the rotating jet suction trench tool back to the deck of the support mother ship. The rotating jet suction trench tool installed below the deep-sea payload salvage and recovery device is disassembled and replaced with the adjustable angle jet suction trench clamping lifting tool.

[0019] On deck, controlled by the control system, the hoisting winch begins releasing the armored cable via a fixed pulley. This allows the deep-sea payload salvage and recovery device, carrying the adjustable-angle jet suction trench clamping lifting tool, to be lowered above the predetermined target deep-sea payload position. The device then directs the No. 2 jet suction pump of the adjustable-angle jet suction trench clamping lifting tool into the four sinkholes dug on either side of the deep-sea payload. The device provides power to the adjustable-angle jet suction trench clamping lifting tool, and the four No. 2 jet suction pumps begin jet suction. At this time, the telescopic cylinders are extended, and the clamping cylinders are retracted. The mud pump nozzles face outwards. The telescopic cylinder slowly retracts, causing a main connecting rod to move laterally. This main connecting rod then rotates two articulated wheels, which in turn move two auxiliary connecting rods back and forth. These auxiliary connecting rods then rotate four rotating cams, which in turn rotate four locking keys. These locking keys then rotate the balance cylinder, causing the clamping cylinder and the No. 2 jet-suction mud pump to swing back until the nozzles of the four No. 2 jet-suction mud pumps are aligned with each other. At this point, the telescopic cylinder stops moving. The clamping cylinder then extends to hold the deep-sea payload from below. The four No. 2 jet-suction mud pumps remain operational until the clamping cylinder reaches its maximum extension.

[0020] Once the clamping cylinder holds the deep-sea payload from below, the hoisting winch on the deck, controlled by the control system, begins to retract the armored cable via a fixed pulley, thus bringing the deep-sea payload back onto the support vessel's deck and completing the mission.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention features a compact and rational structure, and is easy to operate. By utilizing the inertial navigation equipment of the device itself for close-range target searching, it solves the problem of accurately locating high-value buried objects in the deep sea. It also solves the problems of dredging and holding high-value buried objects by using a rotating jet suction trenching tool and an adjustable-angle jet suction trenching and hoisting tool. With the help of equipment such as the armored cable winch of the support vessel, the goal of salvaging and recovering high-value buried objects in the deep sea is finally achieved.

[0023] This invention can not only reduce resource waste and alleviate marine environmental pollution, but also save costs and improve economic efficiency.

[0024] This invention is a deep-sea device with a certain range of mobility, precise positioning, spraying and suction of mud, and the ability to grab and salvage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention (deep-sea payload salvage and recovery device and rotating jet suction trench tool in the lowering state).

[0026] Figure 2 This is a schematic diagram of the structure of the present invention (deep-sea payload salvage and recovery device and rotating jet suction trench tool in the jetting state).

[0027] Figure 3 This is a schematic diagram of the structure of the present invention (the deep-sea effective payload salvage and recovery device and the adjustable angle jet suction trench clamping and lifting tool after being replaced to search for the target).

[0028] Figure 4 This is a schematic diagram of the structure of the present invention (deep-sea effective payload salvage and recovery device and adjustable angle jetting suction trench clamping lifting tool in jetting and clamping state).

[0029] Figure 5 This is a schematic diagram of the structure of the present invention (operational process of the deep-sea buried payload salvage and recovery device for the payload salvage and recovery).

[0030] Figure 6 This is a schematic diagram of the structure of the present invention (deep-sea effective payload salvage and recovery device and rotating jet suction trench tool).

[0031] Figure 7 This is a schematic diagram of the deep-sea payload salvage and recovery device and the adjustable-angle jet suction trench clamping and lifting tool of the present invention.

[0032] Figure 8 This is a schematic diagram of the rotating mechanism of the present invention.

[0033] Figure 9 This is a schematic diagram of the underwater mechanical gripper of the present invention.

[0034] Figure 10 This is the open state of the adjustable angle spray suction groove clamping and lifting tool of the present invention.

[0035] Figure 11 This is the clamping state of the adjustable angle spray suction groove clamping and lifting tool of the present invention.

[0036] The components include: 1. Deck winch lifting system A-frame; 2. Fixed pulley; 3. Armored cable; 4. Lifting winch; 5. Deep-sea payload salvage and recovery device; 6. Rotary jet suction trench tool; 7. Deep-sea payload; 8. Adjustable angle jet suction trench clamping and lifting tool.

[0037] 601. Rotating mechanism structural frame; 602. Rotating mechanism; 603. Hydraulic cylinder for maintaining balance; 604. No. 1 jetting and mud suction pump;

[0038] 60201, Telescopic cylinder; 60202, Main connecting rod; 60203, Articulated wheel; 60204, Secondary connecting rod; 60205, Rotary cam; 60206, Slot key;

[0039] 801. Clamping cylinder; 802. No. 2 jetting mud suction pump. Detailed Implementation

[0040] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] like Figures 1-10 As shown, the deep-sea payload salvage and recovery device of this embodiment includes a lifting winch 4 welded to the ship deck, a deck winch lifting system A frame 1 fixed on the ship deck, a fixed pulley 2 installed on the deck winch lifting system A frame 1, an armored cable 3 passing through the fixed pulley 2 and fixed on the winch of the lifting winch 4, the winch of the lifting winch 4 rotates, and the armored cable 3 drives the deep-sea payload salvage and recovery device 5 to move up and down to achieve the task of salvaging and recovering the deep-sea payload 7;

[0042] A rotary jet suction trench tool 6 and an adjustable angle jet suction trench clamping and lifting tool 8 are installed below the deep-sea payload salvage and recovery device 5.

[0043] The specific structure of the rotary jetting and suction trenching tool 6 is as follows: it includes a rotary mechanism structure frame 601 fixed below the deep-sea payload salvage and recovery device 5; a rotary mechanism 602 is installed inside the rotary mechanism structure frame 601; a balance-maintaining hydraulic cylinder 603 is installed at each of the four corners of the rotary mechanism 602; the rotation of the rotary mechanism 602 can realize the rotation of the balance-maintaining hydraulic cylinder 603; a first jetting and suction pump 604 is installed below each balance-maintaining hydraulic cylinder 603; the rotation of the balance-maintaining hydraulic cylinder 603 can drive the rotation of the first jetting and suction pump 604.

[0044] The specific structure of the adjustable angle spraying and suction trench clamping and lifting tool 8 is as follows: a clamping cylinder 801 is installed on the side of the hydraulic cylinder 603 to maintain the balance posture, and a second spraying and suction mud pump 802 is installed at the output end of the clamping cylinder 801.

[0045] The specific structure of the rotating mechanism 602 is as follows: it includes a telescopic cylinder 60201 fixed on the rotating mechanism structural frame 601. The output end of the telescopic cylinder 60201 is equipped with a main connecting rod 60202 by fasteners. The extension and retraction of the telescopic cylinder 60201 can realize the left and right movement of the main connecting rod 60202. The two ends of the main connecting rod 60202 are respectively equipped with hinged wheels 60203. The hinged wheels 60203 are equipped with secondary connecting rods 60204. The secondary connecting rods 60204 are perpendicular to the main connecting rod 60202 in space. The left and right movement of the main connecting rod 60202 can realize the forward and backward movement of the two secondary connecting rods 60204. The two ends of each secondary connecting rod 60204 are respectively eccentrically equipped with rotary cams 60205. The rotary cams 60205 are provided with slot keys 60206. The forward and backward movement of the two secondary connecting rods 60204 can realize the rotational movement of the four slot keys 60206.

[0046] Thin rods extend from both ends of the main connecting rod 60202, and hinge wheels 60203 are installed at the ends of the thin rods by fasteners.

[0047] The articulated wheel 60203 has a triangular structure.

[0048] The hinge wheel 60203 and the end of the main connecting rod 60202 are eccentrically mounted.

[0049] The 60206 key slot is used to install the hydraulic cylinder 603 to maintain its balanced posture.

[0050] The rotary jetting and suction trenching tool 6 described in this invention is mainly used for jetting and suction trenching near high-value buried objects. Its purpose is to facilitate the positioning of the four clamping cylinders 801 of the adjustable-angle jetting and suction trenching clamping and lifting tool 8 and the jetting and suction equipment below the high-value buried object, enabling the adjustable-angle jetting and suction trenching clamping and lifting tool 8 to hold the high-value buried object. The adjustable-angle jetting and suction trenching clamping and lifting tool 8 can swing while jetting and suctioning mud, ultimately using the extension of the clamping cylinders and the movement of the jetting and suction equipment to complete the trenching and clamping action from below the high-value buried object, ultimately completing the task of clamping, retrieving, and recovering the high-value buried object.

[0051] The telescopic cylinder 60201 in the rotating mechanism 602 of the present invention drives the linkage mechanism to complete the rotation of the cylinder 603 that maintains the balance posture. The cylinder 603 that maintains the balance posture drives the spraying and suction pump to rotate while spraying and suctioning mud, so as to achieve the purpose of spraying and suctioning mud to dig trenches near high-value buried objects.

[0052] The adjustable angle jetting and suction trench clamping and lifting tool 8 of the present invention consists of a rotating mechanism structural frame 601, a rotating mechanism 602, a balance-maintaining cylinder 603, a clamping cylinder 801, and a second jetting and suction pump 802. The telescopic cylinder 60201 of the rotating mechanism drives the linkage mechanism to complete the rotation of the balance-maintaining cylinder 603. The balance-maintaining cylinder 603 drives the clamping cylinder 801 and the second jetting and suction pump 802 to swing. The clamping cylinder 801 extends and works together with the jetting and suction pump, ultimately enabling the clamping, retrieval, and recovery of high-value buried objects.

[0053] The specific structure and function of the deep-sea payload salvage and recovery device described in this invention are as follows:

[0054] The entire deep-sea lifting and deployment system mainly consists of a deck winch lifting system A frame 1, fixed pulley 2, armored cable 3, lifting winch 4, deep-sea effective payload salvage and recovery device 5, rotating jet suction trench tool 6, deep-sea effective payload 7, and adjustable angle jet suction trench clamping and lifting tool 8.

[0055] The lifting winch 4 is welded to the ship's deck. The fixed pulley 2 is fixed to the deck winch lifting system A frame 1 by hinge. The armored cable 3 passes through the fixed pulley 2 and is fixed to the winch of the lifting winch 4. When the winch of the lifting winch 4 rotates, it will drive the deep-sea payload salvage and recovery device 5 to move up and down through the armored cable 3 to achieve the task of salvaging and recovering the deep-sea payload 7.

[0056] The deep-sea payload salvage and recovery device 5 can be modularly fitted with various tools. These tools can be bolted to the rotary jet suction trench tool 6 and the adjustable-angle jet suction trench clamping and lifting tool 8 via transition flanges. The deep-sea payload salvage and recovery device 5 provides power to the rotary jet suction trench tool 6 and the adjustable-angle jet suction trench clamping and lifting tool 8. Through the combined operation of the rotary jet suction trench tool 6 and the adjustable-angle jet suction trench clamping and lifting tool 8, the deep-sea payload 7 can be salvaged and recovered.

[0057] The rotary jetting and suction tool 6 consists of a rotary mechanism structural frame 601, a rotary mechanism 602, a balance-maintaining hydraulic cylinder 603, and a first jetting and suction pump 604. The first jetting and suction pump 604 can realize the functions of jetting and suction. The rotary mechanism 602 is installed inside the rotary mechanism structural frame 601. The locking key 60206 in the rotary mechanism 602 is inserted into the balance-maintaining hydraulic cylinder 603. The rotation of the rotary mechanism 602 can realize the rotation of the balance-maintaining hydraulic cylinder 603. The first jetting and suction pump 604 is installed below the balance-maintaining hydraulic cylinder 603. The rotation of the balance-maintaining hydraulic cylinder 603 can drive the rotation of the first jetting and suction pump 604.

[0058] The adjustable angle spraying and suction trench clamping and lifting tool 8 consists of a rotating mechanism structural frame 601, a rotating mechanism 602, a balance-maintaining cylinder 603, a clamping cylinder 801, and a second spraying and suction pump 802. The second spraying and suction pump 802 can realize the functions of spraying and suction. The rotating mechanism 602 is installed inside the rotating mechanism structural frame 601. The slot key 60206 in the rotating mechanism 602 is inserted into the balance-maintaining cylinder 603. The rotation of the rotating mechanism 602 can realize the rotation of the balance-maintaining cylinder 603. The clamping cylinder 801 is installed on the side of the balance-maintaining cylinder 603. The rotation of the balance-maintaining cylinder 603 can drive the clamping cylinder 801 to swing. The second spraying and suction pump 802 is installed at the end of the clamping cylinder 801. The swing of the clamping cylinder 801 can drive the swing of the second spraying and suction pump 802.

[0059] The rotating mechanism 602 consists of a telescopic cylinder 60201, a main connecting rod 60202, two hinged wheels 60203, two auxiliary connecting rods 60204, four rotating cams 60205, and four locking keys 60206. One end of the telescopic cylinder 60201 is fixed to the rotating mechanism frame 601, and the other end is connected to the main connecting rod 60202. The extension and retraction of the telescopic cylinder 60201 enables the left and right movement of the main connecting rod 60202. The two hinged wheels 60203 and two auxiliary connecting rods 60204 are also connected. The receiving wheel 60203 is connected to the main connecting rod 60202 at one end and to two auxiliary connecting rods 60204 at the other end. The left and right movement of the main connecting rod 60202 can realize the forward and backward movement of the two auxiliary connecting rods 60204. One end of the four rotary cams 60205 is connected to the two auxiliary connecting rods 60204 at one end and to the four retaining keys 60206 at the other end. The forward and backward movement of the two auxiliary connecting rods 60204 can realize the rotational movement of the four retaining keys 60206.

[0060] In actual work process:

[0061] When salvaging and recovering the deep-sea payload 7: the surface support vessel sails to the designated sea area, and firstly, the rotary jet suction ditch tool 6 is installed below the deep-sea payload salvage and recovery device 5. On the deck, under the control of the control system, the lifting winch 4 begins to release the armored cable 3 through the fixed pulley 2. Thus, the deep-sea payload salvage and recovery device 5, carrying the rotary jet suction ditch tool 6, is lowered to the position above the designated target deep-sea payload 7. The control system controls the deep-sea payload salvage and recovery device 5 to provide power to the rotary jet suction ditch tool 6. The rotary jet suction ditch tool 6 begins to jet and suction mud, starting jet and suction mud work on both sides of the deep-sea payload 7. Sinking pits are dug on both sides of the deep-sea payload 7 to facilitate the later construction of the adjustable angle jet suction ditch to hold the lifting tool 8. Simultaneously, the telescopic cylinder 60201 continuously extends and retracts, driving a main connecting rod 60202 to move laterally left and right. The main connecting rod 60202 drives two articulated wheels 60203 to rotate, which in turn drives two auxiliary connecting rods 60204 to move back and forth. The auxiliary connecting rods 60204 drive four rotary cams 60205 to rotate, which in turn drive four retaining keys 60206 to rotate. The retaining keys 60206 then drive the cylinder 603, which maintains the balance, to rotate, thereby driving the four No. 1 jetting and sludge suction pumps 604 to rotate. This allows the four No. 1 jetting and sludge suction pumps 604 to rotate, jetting, and sludge suction to be performed simultaneously. While the four No. 1 jetting and suction mud pumps 604 are jetting and suctioning mud, they will cause the deep-sea effective payload salvage and recovery device 5 to tilt, which may easily cause the entire device to overturn. Therefore, the hydraulic cylinder 603 can also extend and retract to keep the reaction force of the four No. 1 jetting and suction mud pumps 604 consistent, in order to maintain the balance of the entire device.

[0062] Once the sinkholes excavated on both sides of the deep-sea payload 7 can accommodate the No. 2 jet suction pump 802 of the adjustable-angle jet suction trench clamping lifting tool 8, the lifting winch 4, controlled by the control system on the deck, begins to retract the armored cable 3 via the fixed pulley 2. This allows the deep-sea payload salvage and recovery device 5, carrying the rotating jet suction trench tool 6, to be returned to the deck of the support vessel. The rotating jet suction trench tool 6, installed below the deep-sea payload salvage and recovery device 5, is then removed and replaced with the adjustable-angle jet suction trench clamping lifting tool 8.

[0063] On deck, controlled by the control system, the hoisting winch 4 begins to release the armored cable 3 through the fixed pulley 2. This allows the deep-sea payload salvage and recovery device 5, carrying the adjustable-angle jetting and suction trench clamping lifting tool 8, to be lowered above the predetermined target deep-sea payload 7. The device then directs the second jetting and mud-sucking pump 802 of the adjustable-angle jetting and suction trench clamping lifting tool 8 into the four sinkholes dug on either side of the deep-sea payload 7. The device provides power to the adjustable-angle jetting and suction trench clamping lifting tool 8, and the four second jetting and mud-sucking pumps 802 begin jetting and suctioning mud. At this time, the telescopic cylinder 60201 is extended, and the clamping cylinder 801 is retracted. The nozzle of the No. 2 jet sludge pump 802 faces outwards. The telescopic cylinder 60201 slowly retracts, causing one main connecting rod 60202 to move laterally. The main connecting rod 60202 drives two hinged wheels 60203 to rotate. The hinged wheels 60203 drive two auxiliary connecting rods 60204 to move back and forth. The two auxiliary connecting rods 60204 drive four rotating cams 60205 to rotate. The four rotating cams 60205 drive four locking keys 60206 to rotate. The four locking keys 60206 drive the balancing cylinder 603 to rotate, causing the clamping cylinder 801 and the No. 2 jet sludge pump 802 to swing back until the nozzles of the four No. 2 jet sludge pumps 802 are aligned with each other. The telescopic cylinder 60201 then stops moving. At this point, the clamping cylinder 801 extends to hold the deep-sea payload 7 from below. Meanwhile, the four No. 2 jet-flushing and mud-suction pumps 802 remain operational until the clamping cylinder 801 reaches its maximum extension. During operation, the clamping cylinder 801 and the No. 2 jet-flushing and mud-suction pumps 802 are prone to causing the entire equipment to tip over. The balance cylinder 603 can extend and retract to maintain the overall balance of the device.

[0064] After the clamping cylinder 801 holds the deep-sea payload 7 from below, the hoisting winch 4, controlled by the control system on the deck, begins to retract the armored cable 3 through the fixed pulley 2, thereby bringing the deep-sea payload 7 back onto the deck of the support mother ship and completing the mission.

[0065] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A deep-sea payload salvage and recovery device, characterized in that: The system includes a lifting winch (4) welded to the ship deck, a deck winch lifting system A frame (1) fixed on the ship deck, a fixed pulley (2) installed on the deck winch lifting system A frame (1), an armored cable (3) passing through the fixed pulley (2) and fixed on the winch of the lifting winch (4), the winch of the lifting winch (4) rotates, and drives the deep-sea payload salvage and recovery device (5) to move up and down through the armored cable (3) to achieve the task of salvaging and recovering the deep-sea payload (7); A rotary jet suction trench tool (6) and an adjustable angle jet suction trench clamping and lifting tool (8) are installed below the deep-sea payload salvage and recovery device (5); The specific structure of the rotary jetting suction trench tool (6) is as follows: it includes a rotary mechanism structure frame (601) fixed below the deep-sea effective payload salvage and recovery device (5), a rotary mechanism (602) is installed inside the rotary mechanism structure frame (601), and a balance-maintaining hydraulic cylinder (603) is installed at each of the four corners of the rotary mechanism (602). The rotation of the rotary mechanism (602) can realize the rotation of the balance-maintaining hydraulic cylinder (603); a first jetting mud suction pump (604) is installed below each balance-maintaining hydraulic cylinder (603). The rotation of the balance-maintaining hydraulic cylinder (603) can drive the rotation of the first jetting mud suction pump (604). The specific structure of the adjustable angle spray suction trench clamping and lifting tool (8) is as follows: a clamping cylinder (801) is installed on the side of the balance posture cylinder (603), and a second spray suction mud pump (802) is installed at the output end of the clamping cylinder (801).

2. The deep-sea payload salvage and recovery device as described in claim 1, characterized in that: The specific structure of the rotating mechanism (602) is as follows: it includes a telescopic cylinder (60201) fixed on the rotating mechanism structural frame (601). The output end of the telescopic cylinder (60201) is equipped with a main connecting rod (60202) via fasteners. The extension and retraction of the telescopic cylinder (60201) can realize the left and right movement of the main connecting rod (60202). Hinged wheels (60203) are respectively installed at both ends of the main connecting rod (60202), and secondary connecting rods (60203) are installed on the hinged wheels (60203). 204), the secondary connecting rod (60204) is perpendicular to the main connecting rod (60202) in space. The left and right movement of the main connecting rod (60202) can realize the forward and backward movement of the two secondary connecting rods (60204). Each end of a single secondary connecting rod (60204) is eccentrically mounted with a rotary cam (60205). The rotary cam (60205) is provided with a slot key (60206). The forward and backward movement of the two secondary connecting rods (60204) can realize the rotational movement of the four slot keys (60206).

3. The deep-sea payload salvage and recovery device as described in claim 2, characterized in that: The main connecting rod (60202) has thin rods extending from both ends, and the ends of the thin rods are fitted with hinge wheels (60203) via fasteners.

4. The deep-sea payload salvage and recovery device as described in claim 2, characterized in that: The articulated wheel (60203) has a triangular structure.

5. The deep-sea payload salvage and recovery device as described in claim 2, characterized in that: The hinge wheel (60203) and the end of the main connecting rod (60202) are eccentrically mounted.

6. The deep-sea payload salvage and recovery device as described in claim 2, characterized in that: The slot key (60206) is used to install the hydraulic cylinder (603) to maintain its balance posture.

7. An operation method for a deep-sea payload salvage and recovery device as described in claim 2, characterized in that: The work process includes the following: When salvaging and recovering the deep-sea payload (7): When the surface support vessel sails to the designated sea area, a rotary jet suction dredging tool (6) is first installed below the deep-sea payload salvage and recovery device (5). On the deck, under the control of the control system, the hoisting winch (4) begins to release the armored cable (3) through the fixed pulley (2), thus lowering the deep-sea payload salvage and recovery device (5) carrying the rotary jet suction dredging tool (6) above the designated target deep-sea payload (7). The control system controls the deep-sea payload salvage and recovery device (5) to provide power to the rotary jet suction dredging tool (6), which then begins jetting and suctioning mud on both sides of the deep-sea payload (7), excavating sinkholes on both sides of the deep-sea payload (7) to facilitate later operations. Construction of the adjustable angle spraying and suction trench clamping lifting tool (8); at the same time, the telescopic cylinder (60201) continuously extends and retracts, driving the main connecting rod (60202) to move left and right, the main connecting rod (60202) drives the hinge wheel (60203) to rotate, the rotation of the hinge wheel (60203) drives the secondary connecting rod (60204) to move back and forth, the secondary connecting rod (60204) drives the rotating cam (60205) to rotate, the rotating cam (60205) drives the slot key (60206) to rotate, the slot key (60206) drives the oil cylinder (603) to maintain the balance posture to rotate, thereby driving the four No. 1 spraying and suction mud pumps (604) to rotate, thereby realizing the simultaneous rotation, spraying and suction of the four No. 1 spraying and suction mud pumps (604); Once the sinkholes dug on both sides of the deep-sea payload (7) can accommodate the No. 2 jet suction pump (802) of the adjustable angle jet suction ditch clamping lifting tool (8), the lifting winch (4) on the deck begins to retract the armored cable (3) through the fixed pulley (2), thereby bringing the deep-sea payload salvage and recovery device (5) back onto the deck of the support mother ship carrying the rotating jet suction ditch tool (6). The rotating jet suction ditch tool (6) installed below the deep-sea payload salvage and recovery device (5) is removed and replaced with the adjustable angle jet suction ditch clamping lifting tool (8); on the deck, the control... Under system control, the hoisting winch (4) begins to release the armored cable (3) through the fixed pulley (2), thereby lowering the deep-sea payload salvage and recovery device (5) carrying the adjustable-angle jet suction trench clamping lifting tool (8) above the predetermined target deep-sea payload (7). The deep-sea payload salvage and recovery device (5) is controlled to send the No. 2 jet suction mud pump (802) of the adjustable-angle jet suction trench clamping lifting tool (8) into the four sinking pits dug on both sides of the deep-sea payload (7). The deep-sea payload salvage and recovery device (5) is controlled to provide power to the adjustable-angle jet suction trench clamping lifting tool (8). Upon request, four No. 2 jet-flushing sludge pumps (802) begin jet-flushing and sludge suction. At this time, the telescopic cylinder (60201) is in the extended state, and the clamping cylinder (801) is in the shortened state. The nozzles of the No. 2 jet-flushing sludge pumps (802) are facing outwards. The telescopic cylinder (60201) begins to slowly retract, causing one main connecting rod (60202) to move laterally. One main connecting rod (60202) drives two articulated wheels (60203) to rotate. The articulated wheels (60203) drive two auxiliary connecting rods (60204) to move back and forth. The two auxiliary connecting rods (60204) drive four rotating cams (60205) to rotate. The cam (60205) drives the four slot keys (60206) to rotate, and the four slot keys (60206) drive the balance cylinder (603) to rotate, which in turn drives the clamping cylinder (801) and the second jet mud pump (802) to start swinging back until the nozzles of the four second jet mud pumps (802) are facing each other. The telescopic cylinder (60201) stops moving. At this time, the clamping cylinder (801) begins to extend and hold the deep-sea payload (7) from below. At this time, the four second jet mud pumps (802) are always in working condition until the clamping cylinder (801) is extended to its longest position. After the clamping cylinder (801) holds the deep-sea payload (7) from below, the hoisting winch (4) on the deck starts to retract the armored cable (3) through the fixed pulley (2) by the control system, thereby bringing the deep-sea payload (7) back to the deck of the support mother ship and completing the mission.

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