Hydro-launching device for underwater vehicles and its operating method

Abstract

The present invention discloses a hydraulic launching device for an underwater vehicle and an operating method thereof, the device including an offshore platform, a platform stabilizing mechanism, a deep-sea exploration vehicle launch tube, an automatic release jig, and a vortex generating mechanism. The offshore platform includes a platform deck, a crane assembly, and a lower float assembly. The crane assembly is attached to the upper surface of the platform deck, with a through-hole opened in the middle of the platform deck. The deep-sea exploration vehicle launch tube extends downward through the through-hole and is connected to the platform deck. The lower float assembly is attached to the bottom of the platform deck and surrounds the deep-sea exploration vehicle launch tube. The automatic release jig is connected to the crane assembly and cooperates with the deep-sea exploration vehicle launch tube, and is used to clamp the deep-sea exploration vehicle. The platform stabilizing mechanism includes a plurality of platform float stabilizing members attached to the upper surface of the platform deck at intervals around the periphery. The present invention can improve the diving efficiency of the deep-sea exploration vehicle and reduce the mutual interference caused by unknown wind, waves, and currents when operating in two completely different environmental media.

Description

[Technical Field]

[0001] The present invention relates to a hydraulic launcher, and more particularly to a hydraulic launcher for an underwater vehicle and a method of operating the same. [Background technology]

[0002] Deep-sea submersibles (hereinafter referred to as deep-sea survey vehicles) must dive without power, then perform detection, and automatically surface and recover after completing the task. They are often used in marine surveys, deep-sea resource exploration, undersea cable inspections, salvaging lost targets, military reconnaissance, etc. The underwater working time of a submersible includes snorkeling time and deep-sea construction work time, of which the snorkeling time of a deep-sea survey vehicle accounts for approximately 50% of its underwater working time. The long snorkeling time of a deep-sea survey vehicle limits its underwater working time and further reduces the working efficiency of the deep-sea survey vehicle.

[0003]

[0003] Factors that limit diving time include diving speed, diving path, and deceleration protection when landing, among which diving speed and diving path are the most limiting factors. Deep-sea exploration vehicles generally adopt a method of dumping ballast pig iron, for example, by controlling the ballast pig iron with an electromagnet, so that the ballast pig iron automatically detaches from the submersible under the action of gravity, allowing the submersible to surface. However, using only the method of dumping ballast pig iron usually has two drawbacks: first, the initial diving speed of the deep-sea exploration vehicle is limited; and second, due to the influence of underwater drift force, the diving path of the deep-sea exploration vehicle becomes S-shaped, so it is necessary to increase the initial diving speed of the deep-sea exploration vehicle, thereby improving the diving efficiency of the deep-sea exploration vehicle.

[0004] In a conventional deep-sea exploration vessel storage and release device, a deep-sea exploration vessel is dragged near a work vessel by a deep-sea drag mechanism, and then thrown into the water by a release mechanism. The launch mechanism is commonly used for launching torpedoes from submersibles, and uses water pressure to push the torpedo out of the launch tube. Because the underwater pressure is large, a large pressure difference is created between the inside and outside of the launch tube, creating significant resistance to the launch of the deep-sea exploration vessel and making it unfavorable for launch. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above problems, the present invention aims to provide a hydraulic launching device for an underwater vehicle and improve the diving efficiency of a deep-sea exploration vehicle, and also provides an operating method thereof. [Means for solving the problem]

[0006] The hydraulic launching device for the underwater vehicle includes an offshore platform, a platform stabilization mechanism, a deep-sea exploration vehicle launch tube, an automatic release jig, and a vortex generating mechanism; the offshore platform includes a platform deck, a crane assembly, and a lower floating body assembly, the crane assembly being attached to the upper surface of the platform deck and having a through hole in the center of the platform deck, the deep-sea exploration vessel launch tube extending downward from the through hole and connected to the platform deck, the lower floating body assembly being attached to the bottom of the platform deck and surrounding the deep-sea exploration vessel launch tube, the automatic release jig being connected to the crane assembly and cooperating with the deep-sea exploration vessel launch tube, the automatic release jig being used to clamp the deep-sea exploration vessel, and the platform stabilization mechanism including a plurality of platform floating body stabilizing members attached to the upper surface of the platform deck at intervals in the circumferential direction, The vortex generating mechanism is attached to the bottom of the lower floating body assembly, and includes a vortex generating body and an intake and drainage tank, the intake and drainage tank being arranged at a distance below the lower floating body assembly, the intake and drainage tank being anchored to the seabed by an anchor chain, and the vortex generating body being arranged between the lower floating body assembly and the intake and drainage tank and being slidably connected to both of them.

[0007] Furthermore, the crane assembly includes a crane rod, a lifting device, and a large cargo boom, the crane rod being vertically attached to the upper surface of the platform deck on the side closer to the penetration opening, the automatic release jig being attached to the top of the lifting device, and the large cargo boom being attached to the platform deck in at least one position.

[0008] Furthermore, the lower floating body assembly includes a vertical pillar and a lower floating body, the lower floating body being annular and spaced apart below the platform deck and aligned coaxially with the through-hole, the vertical pillars being spaced apart between the platform deck and the lower floating body and each connected to both, and the vortex generating body being slidably connected to the bottom surface of the lower floating body.

[0009] Furthermore, the deep-sea exploration vessel launch tube includes an upper launch tube, a support column, a position limiting plate, a support base, an internal gear ring, a cylindrical pin, a rack, a lower launch tube, a pinion, and a slider rocker mechanism, the upper launch tube is installed vertically, the upper end opening of the upper launch tube is connected to the platform deck and communicates with a through hole on the platform deck, the position limiting plate is installed on the outer ring of the lower end opening of the upper launch tube, a plurality of support columns are installed at intervals on the outer periphery of the upper launch tube, the upper ends of the support columns are fixed to the bottom of the platform deck and the lower ends are fixed to the upper surface of the position limiting plate, the upper end of the lower launch tube is connected to the bottom surface of the position limiting plate by the support base and is installed coaxially with the upper launch tube, the upper launch tube and The position limiting plate and the support base each have a circular through-hole in the center, allowing the lower launch tube to communicate with them. An internal gear ring is slidably connected to the inner ring of the position limiting plate. A plurality of pinions are spaced apart along the inner ring of the internal gear ring on the support base, and each pinion meshes with the internal gear ring. One side of each pinion is provided with a cylindrical pin, which is drilled radially into the inner wall of the upper launch tube. Each cylindrical pin is provided with a rack that meshes with a corresponding pinion. The position limiting plate has a notch, and the slider rocker mechanism is attached to the support base and connected to the internal gear ring through the notch.

[0010] Preferably, the slider rocker mechanism includes a rocker, a slider, a telescopic rod, and a telescopic sleeve, the telescopic sleeve is attached to the support base, one end of the telescopic rod is connected to the telescopic sleeve and the other end is connected to the slider, the outer circumferential surface of the rocker is hingedly connected to the slider, and one end of the rocker passes through the notch and is connected to the internal gear ring.

[0011] Furthermore, the automatic release jig includes a piston, a jig head, a large spring, a screw head, a square wedge, a small spring, a large hexagon socket head screw, a clutch slider, a coupling, and a small hexagon socket head screw; the piston has an upper part connected to the crane assembly and a through groove drilled in the axial direction at the center of its lower bottom surface; the jig head has an upper part drilled into the through groove and the large spring is fitted onto the outer circumferential surface of the upper part of the jig head; an outer convex ring is provided on the upper edge of the jig head; the inner ring of the through groove of the piston is provided with an inward convex ring; both ends of the large spring abut against the lower surface of the outer convex ring and the upper surface of the convex ring, respectively; and the jig head has a lower part having a triangular chuck structure. a plurality of sets of screw holes and square holes are bored in the peripheral surface of the lower part of the jig head in the radial direction from the outside to the inside, the square wedge is provided in each of the square holes, the large hexagon socket head screws are provided in the screw holes, and the small springs are provided between the large hexagon socket head screws and the corresponding square wedges, the screw heads are attached to the center of the lower part of the jig head, the square wedges support the screw heads, and the outer peripheral surfaces supporting the screw heads are slidably connected to the inner wall of the jig head by the clutch slider, the deep-sea exploration vessel is attached to the lower parts of the screw heads by the coupling, and the small hexagon socket head screws are circumferentially tightened to the coupling.

[0012] Furthermore, the platform float stabilizing member includes a boom telescopic sleeve, a boom telescopic shaft, a boom, a cross shaft, a ball head, and a float, the boom is suspended outward on the upper surface of the platform deck, one end of the boom is hinged to the upper surface of the platform deck, and the other end of the boom is freely connected to the float by the cross shaft and the ball head, the boom telescopic sleeve has one end hinged to the upper surface of the platform deck and the other end connected to one end of the boom telescopic shaft, and the other end of the boom telescopic shaft is hinged to the boom.

[0013] Furthermore, the vortex generating body includes a stirring rod, a spiral propeller, a four-section connecting plate, a suspension arm, and a sliding connection assembly, and two four-section connecting plates are arranged parallel to each other and spaced apart, and are connected by the four stirring rods arranged in sequence and spaced apart along the circumferential direction, and at least one suspension arm is attached to one side of each stirring rod in the same direction, and each suspension arm is attached to the spiral propeller, and the upper surface of the upper four-section connecting plate is connected to the lower floating body assembly by one of the sliding connection assemblies, and the lower surface of the lower four-section connecting plate is connected to the suction and drainage tank by another sliding connection assembly.

[0014] Preferably, the guide rail running structure includes rolling bearings, studs, nuts, rollers, slide rails, and plugs, wherein there are four studs, each corresponding to one of the stirring rods, one end of the stud passing through the four-section connecting plate and the end of the stirring rod and screwing onto them, and the stud is fastened to the four-section connecting plate by two nuts provided above and below. A wheel axle is attached laterally to the other end of the stud, and both ends of the wheel axle are in rolling contact with the inner surface of the slide rail by one of the rolling bearings, the rollers are parallel to the central axis of the studs and are attached to the studs by the plugs, the slide rails are annular, and one is attached to the suction and drainage tank and one to the lower floating body assembly, the slide rails have a U-shaped cross section and an inward fold at their ends, and the rolling bearings are installed in the corresponding slide rails, and the rolling connection between the folds and the rollers reduces collisions.

[0015] The method for operating the hydraulic launch device of the underwater vehicle includes: Step 1 is the lifting stage, S11, placing the apparatus in water and connecting it to the seabed with the anchor chain, immersing the lower floating body assembly in water, and lifting the deep-sea exploration vehicle onto the platform deck with the crane assembly; S12 attaching the deep-sea exploration vehicle to the automatic release jig; and Step 1 includes: (S13) using the crane assembly to lift the deep-sea exploration vessel with its head pointing downward, and lowering the deep-sea exploration vessel and the automatic release jig in order into the deep-sea exploration vessel launch tube so that the axes of the automatic release jig and the deep-sea exploration vessel launch tube are centered; Step 2 is a locking phase, Step 2 includes continuing to lower the automatic release jig to a predetermined position, and releasing a rope between the crane assembly and the automatic release jig after the automatic release jig is positioned on the deep-sea exploration vehicle launch tube (S21); Step 3 is the vortex generation stage, S31, adjusting the draft of the device by the platform floating stabilizing member and maintaining its stability; S32: activating the vortex generating body to generate a vortex under the action of fluid viscous force; and Step 3 includes S33, in which the water in the inner ring is sucked into the tank by the suction and drainage tank, and then the water is discharged from the outer ring of the suction and drainage tank 32 to form a local low pressure area. Step 4, the release and launch phase, S41: releasing the positional restriction between the automatic release jig and the deep-sea exploration vessel launch tube, and separating the automatic release jig from the deep-sea exploration vessel when a collision occurs in the deep-sea exploration vessel launch tube; and Step 4 includes S42, in which the deep-sea exploration vessel is rapidly submerged into deep water by hydraulic pressure, thereby realizing hydraulic launching of the deep-sea exploration vessel. [Effects of the Invention]

[0016] Compared with the prior art, the advantages of the present invention are that it can improve the diving efficiency of deep-sea exploration vehicles, reduce the joint interference caused by unknown winds, waves, and currents when operating in two completely different environmental media (air and water), and reduce the impact of pressure difference resistance at the exit point of the launch tube on underwater launching. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a structural schematic diagram of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the internal structure of the present invention. [Figure 3] FIG. 2 is a schematic diagram of the guide rail travel of the present invention. [Figure 4] FIG. 1 is a schematic diagram of an automatic release jig. [Figure 5] A front cross-sectional view of the inside of a deep-sea exploration vehicle launch tube. [Figure 6] FIG. 1 is a plan view of the interior of a deep-sea exploration vehicle launch tube. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will now be further described with reference to the drawings and specific examples. However, it should be understood that these examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

[0019] As shown in Figures 1 to 7, the hydraulic launching device for an underwater vehicle includes an offshore platform, a platform stabilization mechanism, a deep-sea exploration vehicle launching tube, an automatic release jig, and a vortex generating mechanism; The offshore platform includes a platform deck (5), a crane assembly, and a lower floating body assembly, the crane assembly being attached to the upper surface of the platform deck (5), a through hole being opened in the middle of the platform deck (5), a deep-sea exploration vessel launch tube being provided downward from the through hole and connected to the platform deck (5), the lower floating body assembly being attached to the bottom of the platform deck (5) and surrounding the deep-sea exploration vessel launch tube, an automatic release jig being connected to the crane assembly and cooperating with the deep-sea exploration vessel launch tube, the automatic release jig being used to clamp the deep-sea exploration vessel (4), and the platform stabilization mechanism including a plurality of platform floating body stabilization members attached to the upper surface of the platform deck (5) at intervals in the circumferential direction, The vortex generating mechanism is attached to the bottom of the lower floating body assembly, and includes a vortex generating main body and an intake and drainage tank 32, which is provided below the lower floating body assembly at a distance, and which is anchored to the seabed by an anchor chain 33, and the vortex generating main body is provided between the lower floating body assembly and the intake and drainage tank 32 and is slidably connected to both of them.

[0020] The crane assembly includes a crane rod 1, a lifting device 2, and a large cargo boom 24. The lower float assembly includes a stand 25 and a lower float 26. The deep-sea exploration craft launch tube includes an upper launch tube 6, a support column 7, a position limiting plate 8, a support base 9, an internal gear ring 10, a cylindrical pin 11, a rack 12, a lower launch tube 13, a pinion 44, and a slider rocker mechanism. The slider rocker mechanism includes a rocker 45, a slider 46, a telescopic rod 47, and a telescopic sleeve 48. The automatic release jig includes a piston 3, a jig head 35, a large spring 36, a screw head 37, and a square wafer. The platform float stabilizing member includes a boom telescopic sleeve 18, a boom telescopic shaft 19, a boom 20, a cross shaft 21, a ball head 22, and a float 23. The vortex generating body includes a stirring rod 15, a screw 16, a four-section connecting plate 27, a lifting arm 28, and a sliding connection assembly. The sliding connection assembly includes a rolling bearing 14, a stud 17, a nut 29, a roller 30, a slide rail 31, and a plug 34.

[0021] First, four platform float stabilizing members are mounted in an array on the platform deck 5 of the offshore platform. The offshore platform and the platform float stabilizing members are connected in a pivotal and sliding manner. The boom telescopic sleeve 18 and boom 20 are connected to the offshore platform, and the boom telescopic shaft 19 and boom 20 are connected in a pivotal manner. The boom telescopic sleeve 18 and boom telescopic shaft 19 are connected in a sliding manner. The end of the boom 20 and the float 23 are connected to each other via a cross shaft 21 and a ball head 22 to achieve flexible connection. Next, Figure 2 shows the position and connection relationship between the vortex generating mechanism and the offshore platform. The lower floating body 26 of the offshore platform is fixedly connected to the circular slide rail 31, and the vortex generating mechanism is located between the upper and lower circular slide rails 31. An anchor chain 33 is fixedly connected to the bottom of the suction and discharge tank 32, and the end of the anchor chain 33 is anchored to the seabed. As shown in Figure 4, a piston 3 is connected to the upper end of the automatic release jig, and a deep-sea exploration vessel 4 is connected to the lower end. A jig head 35 is attached to the center hole of the piston 3, and the jig head 35 and the piston 3 are slidably connected. The tail of the deep-sea exploration vessel 4 is connected to a screw head 37 by a coupling 42 and a small hexagon socket head screw 43. Finally, as shown in Figures 5 and 6, the deep-sea exploration vessel launch tube is attached to the center of the deck, and the upper launch tube 6 of the deep-sea exploration vessel launch tube is attached to the platform deck 5 of the offshore platform, and the upper launch tube 6 and the platform deck 5 are fixedly connected.

[0022] The offshore platform is the main body of the entire device, and the platform deck 5 and the vertical column 25, and the vertical column 25 and the lower floating body 26 of the offshore platform are all fixedly connected. A crane rod 1, a lifting device 2, and a large cargo boom 24 are attached to the platform deck 5. The crane rod 1 and the large cargo boom 24 are fixedly connected to the platform deck 5. The crane rod 1 and the lifting device 2 are located directly above the upper launch tube 6, and the large cargo booms 24 are arranged diagonally. The large cargo booms 24 lift the underwater deep-sea exploration vessel 4 onto the platform deck 5. The two large cargo booms 24 can cover all parts of the platform deck 5. One end of the anchor chain 33 is connected to the suction and drainage tank 32, and the other end is anchored to the seabed.

[0023] The platform float stabilizer is a stabilization support device disposed on the deck, used to improve the stability of the device at sea. The boom 20 of the platform float stabilizer is pivotally connected to the platform deck 5, and the boom 20 and the float 23 are connected to each other via a cross shaft 21 and a ball head 22. The boom 20 is a thin-shell component, and its cross section is a combination of a square and a circle. The float 23 is a typical assembled three-float tank. The active rotation of the boom 20 is controlled by hydraulically controlling the movement of the telescopic sleeve 18 and the boom telescopic shaft 19, thereby realizing the up and down movement of the float 23 and ultimately achieving stability control.

[0024] As shown in Figure 2, the principle of the vortex generating mechanism is that the thrust generated by the spiral propeller 16 is used to push the four stirring rods 15 to rotate along the circular slide rail 31, and as the stirring rods 15 rotate, the viscous fluid is driven to generate a vortex. Also, the action of the suction and drainage tank 32 is to suck water from the center into the tank, and then discharge the water stored in the suction and drainage tank 32 from a position away from the vortex, so that the flow velocity is high inside the circular ring of the suction and drainage tank 32, and the flow velocity is increased locally to form a low-pressure area. Two hanging arms 28 are fixedly connected to each of the four stirring rods 15, and the spiral propeller 16 is attached to the hanging arms 28. As shown in FIG. 3, the guide rail running structure includes rolling bearings 14, studs 17, nuts 29, rollers 30, slide rails 31, and plugs 34. There are four studs 17, each corresponding to a stirring rod 15. One end of the studs 17 passes through the four-section connecting plate 27 and the end of the stirring rod 15, and is screwed onto them. The studs 17 are fastened to the four-section connecting plate 27 by two nuts 29 provided above and below. The other end of the studs 17 is The wheel axle is mounted laterally, and both ends of the wheel axle are in rolling contact with the inner surface of the slide rail 31 by means of a rolling bearing 14 each. The rollers 30 are parallel to the central axis of the studs 17 and are attached to the studs 17 by means of plugs 34. The function of the rolling bearings 14 is to enable the studs 17 to roll along the grooves of the annular slide rail 31. The function of the rollers 30 is to reduce sliding wear when the studs 17 move on the slide rail 31. The function of the four-section connecting plate 27 is to ensure the simultaneous movement and stability of the four stirring rods 15.

[0025] As shown in FIG. 4, the automatic release jig of the deep-sea exploration vessel has a circular protrusion at the center of the piston 3, one end of the jig head 35 is attached to the circular protrusion of the piston 3, a large spring 36 is fitted to the jig head 35, and the large spring 36 can prevent the piston 3 from colliding with the jig head 35, and the other end of the jig head 35 is a three-jaw chuck type, and the side walls of the three chucks are respectively provided with a screw hole and a square hole, a square wedge 38 is attached to the square hole, and a large hexagon socket head screw 40 is attached to the screw hole, and a large hexagon socket head There is a small spring 39 between the screw 40 and the square wedge 38. The function of the small spring 39 is to return the square wedge 38, and the function of the square wedge 38 is to support the screw head 37. There is a sliding connection between the square wedge 38 and the jig head 35, and between the clutch slider 41 and the screw head 37. The screw head 37 moves up and down within the hole in the jig head 35. The clutch slider 41 is fitted onto the screw head 37, and the screw head 37 and the deep-sea exploration vessel 4 are fixedly connected by a coupling 42 and two small hexagon socket screws 43. The operating principle of the automatic release jig for the deep-sea exploration vessel is that, at the exit of the lower launch tube 13, the deep-sea exploration vessel 4 drives the screw head 37 and clutch slider 41 to move upward due to the influence of inertia. When the clutch slider 41 moves upward, the upper surface of the clutch slider 41 pushes the square wedge 38 and retracts into the hole of the jig head 35. The clutch slider 41 comes into contact with the screw head 37 to form a protrusion. Then, due to the action of gravity, the screw head 37, clutch slider 41 and deep-sea exploration vessel 4 all move downward. Then, the underside of the clutch slider 41 pushes the square wedge 38 again and retracts into the hole in the jig head 35, causing the screw head 37 to move below the square wedge 38, and the screw head 37, clutch slider 41 and deep-sea exploration vessel 4 separate from the jig head 35 and fall directly into the water. When the clutch slider 41 separates from the screw head 37, the clutch slider 41 separates from the screw head 37 to form a groove, and the square wedge 38 is located midway between the clutch slider 41 and the screw head 37, supporting the screw head 37 and the deep-sea exploration vessel 4.

[0026] As shown in Figure 5, the upper launch tube 6 of the deep-sea exploration vessel launch tube is fixedly connected to the platform deck 5, the position limiting plate 8 and the platform deck 5 are fixedly connected by support columns 7, the position limiting plate 8 and the support base 9 are fixedly connected by bolts, and the support base 9 and the lower launch tube 13 are also fixedly connected by bolts. A through hole is drilled in the side wall of the upper launch tube 6, and a cylindrical pin 11 is attached to the through hole in the side wall of the upper launch tube 6, and the cylindrical pin 11 is fixedly connected to a rack 12 by a bolt. As shown in FIG. 6, three pairs of gears, each consisting of a rack 12 and a pinion 44, are uniformly distributed around the circumference. The rack 12 is mounted on the dovetail grooves uniformly distributed around the circumference of the position limiting plate 8. The pinion 44 is mounted on the support base 9, and the pinion 44 and the support base 9 are connected in a rotatable manner. The internal gear ring 10 is mounted in the groove between the position limiting plate 8 and the support base 9. The rocker 45, the slider 46, the telescopic rod 47, and the telescopic sleeve 48 constitute a slider rocker mechanism, whose function is to rotate the internal gear ring 10, so that the internal gear ring 10 moves in a rotatable manner. The three pinions 44 are driven to rotate, and the pinions 44 drive the rack 12 to move radially within the dovetail groove of the position limiting plate 8, ultimately realizing the telescopic movement of the cylindrical pin 11. The internal gear ring 10 and the rocker 45 are fixedly connected, the slider 46 slides up and down on the rocker 45, and the telescopic rod 47 and the slider 46 are rotatably connected, and the telescopic rod 47 and the telescopic sleeve 48 form a hydraulic telescopic rod, and the movement of the telescopic rod 47 can realize the movement of the slider 46 and the oscillation of the rocker 45.

[0027] As shown in Figure 7, the specific method of the hydraulic launching device used in the underwater vehicle includes a lifting stage, a locking stage, a vortex generation stage, a release stage and a launching stage. Specifically, it includes the following steps 1 to 4.

[0028] Step 1, Lifting Phase S11, the lower floating body 26 is completely immersed in water, one end of the anchor chain 33 is fixed to the seabed, the draft is half the length of the upright pier 25, and the deep-sea exploration vessel 4 is lifted from the water onto the deck by the large cargo boom 24; S12: At the tail of the deep-sea exploration vessel 4, a small hexagon socket head screw 43 is screwed into the screw hole of the coupling 42, thereby fixedly connecting the deep-sea exploration vessel 4 and the screw head 37; S13: Using the large cargo boom 24 to lift the deep-sea exploration vessel 4 with its tail pointing downward, insert the screw head 37 of the piston 3 into the jig head 35 to achieve a fixed connection between the deep-sea exploration vessel 4 and the piston 3; S14: The deep-sea exploration vessel 4 is lifted with its head pointing downward by the lifting device 2 of the crane rod 1, and the axis of the piston 3 and the upper launch tube 6 is centered. Then, the piston 3 is inserted into the upper launch tube 6. Step 2, Locking Phase S21: The telescopic rod 47 is moved by hydraulic pressure, the internal gear ring 10 and the pinion 44 are rotated counterclockwise, and the rack 12 and the cylindrical pin 11 are moved outward, thereby returning the internal gear ring 10, the cylindrical pin 11, the rack 12, the pinion 44, and the rocker 45 to their original positions. S22: After returning, adjust the telescopic rod 47 again until the rocker 45 is rotated to the position limiting position, rotate the internal gear ring 10 and the pinion 44 clockwise, and move the rack 12 and the cylindrical pin 11 to the axial center position; S23: By unwinding the hoisting device 2, the piston 3 is moved downward along the upper launch tube 6 until the bottom surface of the piston 3 contacts the cylindrical pin 11, and the rope between the piston 3 and the hoisting device 2 is loosened, and the piston 3 is supported by the cylindrical pin 11.

[0029] Step 3: Vortex generation stage S31: Hydraulically adjust the telescopic shaft 19, rotate the boom 20, immerse the float 23 in water, and adjust the draft of the offshore platform to improve the stability of the platform; S32: The stirring rod 15 is pushed by the spiral propeller 16 to rotate within the slide rail 31, generating a vortex due to the action of fluid viscosity. S33, the water in the inner ring is sucked into the tank by the suction and drainage tank 32, and then the water is discharged from the outer ring of the suction and drainage tank 32, forming a local low pressure area.

[0030] Step 4: Release and launch phase S41: Adjust the telescopic rod 47 again, rotate the internal gear ring 10 and the pinion 44 counterclockwise, move the rack 12 and the cylindrical pin 11 outward, thereby retract the cylindrical pin 11 into the hole, and move the piston 3 vertically downward; S42: After the piston 3 collides with the lower launch tube 13, the jig head 35 moves downward due to inertia, causing the clutch slider 41 to move upward relative to the jig head 35, causing the screw head 37 to fall off the jig head 35 and separating the deep-sea exploration vessel 4 and the piston 3. S43: Deep-sea exploration vehicle 4 quickly dives into deep water with enormous water pressure, thereby realizing the hydraulic launch of the deep-sea exploration vehicle.

[0031] The present invention installs a vertical launch tube on an offshore platform, and a deep-sea exploration vessel is launched from the tube. A propeller propels a stirring rod through the water, causing it to rotate along a circular slide rail. A thin, long vortex is generated in the water under the influence of fluid inertia and viscosity. A drainage tank is added to the bottom of the vortex to increase the flow velocity, thereby accelerating the rotation of the water current. The deep-sea exploration vessel is then launched vertically from the downward launch tube, descending vertically along the center of the vortex. When the vortex disappears, the underwater pressure also increases instantaneously, sucking the deep-sea exploration vessel into the deep-water region, thereby improving the diving efficiency of the deep-sea exploration vessel. The advantages of this method include reducing the impact of pressure differences at the launch tube outlet on underwater launching, and, compared to deep-sea exploration vessel storage and release devices, reducing the interference of unknown winds, waves, and currents when this hydraulic launch method operates in two completely different environmental media (air and water).

[0032] In this invention, the offshore platform floats on the sea and its function is to provide support for a hydraulic launching device. The offshore platform has a deck at the top, four uprights in the middle, and a circular lower floating body at the bottom. There are four arrays of floats around the deck, and the purpose of the four floats is to reduce rocking and improve stability. The middle of the deck is a vertical launch tube for a deep-sea exploration vessel. The shape of the entire platform resembles that of an umbrella, and this structure helps it to become a "potato" on the sea.

[0033] In the present invention, the intake and drainage tank 32 is annular, with multiple small holes on the inner ring for efficient water intake, and a ballast tank and pump tank are located inside the intake and drainage tank, allowing water to be drawn in from the inside of the ring and then discharged from the outside. The intake and drainage tank forms a pressure outlet at the bottom of the boundaryless vortex, improving the stability of the vortex.

[0034] In this invention, a method for forming an underwater vortex is provided using the structure and appearance of a multi-propeller vortex generating device. A spiral thruster is attached to the boom of the stirring rod, and the thrust direction of the spiral thruster is in contact with the annular ring, pushing the stirring rod to rotate along the annular slide rail. The stirring rod is a thin plate, and a boom is fixedly connected to the middle part of the stirring rod. An L-shaped boom is used to attach the spiral thruster. An annular slide rail is connected to both the upper and lower ends of the stirring rod, and the stirring rod rolls along the annular slide rail. The rotation of the stirring rod accelerates the movement of the surrounding fluid, and a spiral vortex is formed due to the accelerated rotational speed of the fluid, and the central region of the spiral vortex is a low-pressure region.

[0035] In the present invention, with regard to the automatic release jig for the hydraulic launching device of an underwater vehicle, when the deep-sea survey vessel descends to the outlet of the lower launch tube, the deep-sea survey vessel moves upward after contacting the water, the square wedge retracts into the hole, and the screw head is separated from the jig head, thereby separating the deep-sea survey vessel and the piston. This method, which realizes the suspension and release of the deep-sea survey vessel by moving the clutch slider, has the advantage of automatic separation of the deep-sea survey vessel and the hydraulic launching device.

[0036] In the present invention, the locking mechanism of the hydraulic launching device of the underwater vehicle uses a slider and a rocker to convert the linear movement of the telescopic rod into the rotation of the internal gear ring, which rotates to drive the rotation of multiple pinions, and finally realizes the radial movement of the rack and the radial extension and contraction of the cylindrical pin. The locking mechanism not only performs a supporting function, but also uses a hydraulic mechanism to realize the radial extension and contraction of the cylindrical pin. [Explanation of symbols]

[0037] 1 crane rod 2 Lifting equipment 3 pistons 4 Deep Sea Exploration Vessel 5 Platform Deck 6 Upper launch tube 7 Support pillar 8 Position limiting plate 9 Support stand 10 Internal gear ring 11 Cylindrical pin 12 racks 13 Downward Launch Tube 14 Rolling bearings 15 Stirring rod 16 Spiral thruster 17 Studs 18 Boom telescopic sleeve 19. Boom telescopic axis 20. Boom 21 Cross axis 22 ball head 23 Float 24 Big Cargo Boom 25 Standing Pillar 26 Lower Floating Body 27 Four-section connecting plate 28 Hanging arm 29 Nut 30 Laura 31 Slide rail 32 Intake and drainage tank 33 Anchor Chain 34 Plug 35 Jig head 36 Large spring 37 Screw head 38 Square Wedge 39 Small spring 40 large hex socket head screw 41 Clutch slider 42 Coupling 43 small hex socket screws 44 Pinion 45 Locker 46 Slider 47 Telescopic Rod 48 Elastic Sleeve

Claims

1. The system includes an offshore platform, a platform stabilization mechanism, a deep-sea exploration vessel launch tube, an automatic release jig, and a vortex generation mechanism; The offshore platform includes a platform deck (5), a crane assembly, and a lower float assembly, the crane assembly being attached to the upper surface of the platform deck (5), a through hole being opened in the middle of the platform deck (5), the deep-sea exploration vessel launch tube being provided downward through the through hole and connected to the platform deck (5), the lower float assembly being attached to the bottom of the platform deck (5) and surrounding the deep-sea exploration vessel launch tube, the automatic release jig being connected to the crane assembly and cooperating with the deep-sea exploration vessel launch tube, the automatic release jig being used to clamp the deep-sea exploration vessel (4), and the platform stabilization mechanism including a plurality of platform float stabilization members attached to the upper surface of the platform deck (5) at intervals in the circumferential direction, The vortex generating mechanism is attached to the bottom of the lower floating body assembly, and the vortex generating mechanism includes a vortex generating body and an intake and drainage tank (32), the intake and drainage tank (32) is provided below the lower floating body assembly at a distance, the intake and drainage tank (32) is anchored to the seabed by an anchor chain (33), and the vortex generating body is provided between the lower floating body assembly and the intake and drainage tank (32) and is slidably connected to both of them.

2. 2. The hydro-launching device for an underwater vehicle according to claim 1, wherein the crane assembly includes a crane rod (1), a lifting attachment (2), and a large cargo boom (24), the crane rod (1) being attached vertically to the upper surface of the platform deck (5) on a side closer to the penetration opening, the automatic release jig being attached to an upper part of the lifting attachment (2), and at least one large cargo boom (24) being attached to the platform deck (5).

3. 2. The hydro-launching device for an underwater vehicle according to claim 1, wherein the lower floating body assembly includes a standing pillar (25) and a lower floating body (26), the lower floating body (26) is annular, is provided below the platform deck (5) at a distance, and is aligned coaxially with the through-hole, a plurality of the standing pillars (25) are provided at intervals between the platform deck (5) and the lower floating body (26) and are connected to both, and the vortex generating body is slidably connected to the bottom surface of the lower floating body (26).

4. The deep-sea exploration craft launch tube includes an upper launch tube (6), a support column (7), a position limiting plate (8), a support base (9), an internal gear ring (10), a cylindrical pin (11), a rack (12), a lower launch tube (13), a pinion (44), and a slider rocker mechanism. The upper launch tube (6) is vertically installed, and the upper end opening of the upper launch tube (6) is connected to the platform deck (5) and communicates with a through-hole on the platform deck (5). The position limiting plate (8) is provided on the outer ring of the lower end opening, and a plurality of support columns (7) are provided at intervals on the outer periphery of the upper launch tube (6), the upper ends of the support columns (7) are fixed to the bottom of the platform deck (5), and the lower ends are fixed to the upper surface of the position limiting plate (8), and the upper end of the lower launch tube (13) is connected to the bottom surface of the position limiting plate (8) by the support base (9), and is provided coaxially with the upper launch tube (6), so that the upper launch tube (6) and the lower launch tube (13) are connected. A circular through-hole is opened in the center of each of the position limiting plate (8) and the support base (9) so that the internal gear ring (10) can pass through, and the internal gear ring (10) is slidably connected to the inner ring of the position limiting plate (8). A plurality of pinions (44) are provided on the support base (9) at intervals along the inner ring of the internal gear ring (10), and each of the pinions (44) meshes with the internal gear ring (10), and one of the cylindrical pins (11) is provided on one side of each of the pinions (44). the cylindrical pins (11) are drilled radially into the inner circumferential wall of the upper launch tube (6), each cylindrical pin (11) is provided with a rack (12) that engages with a corresponding one of the pinions (44), the position limiting plate (8) has a notch, and the slider rocker mechanism is attached to the support base (9) and connected to the internal gear ring (10) through the notch.

5. 5. The hydro-launching device for an underwater vehicle according to claim 4, wherein the slider-rocker mechanism includes a rocker (45), a slider (46), a telescopic rod (47), and a telescopic sleeve (48), the telescopic sleeve (48) is attached to the support base (9), one end of the telescopic rod (47) is connected to the telescopic sleeve (48) and the other end is connected to the slider (46), the outer circumferential surface of the rocker (45) is hingedly connected to the slider (46), and one end of the rocker (45) passes through the notch and is connected to the internal gear ring (10).

6. The automatic release jig includes a piston (3), a jig head (35), a large spring (36), a screw head (37), a square wedge (38), a small spring (39), a large hexagon socket head screw (40), a clutch slider (41), a coupling (42), and a small hexagon socket head screw (43). The piston (3) has an upper part connected to the crane assembly and a through groove drilled along the axial direction in the center of its lower bottom surface. The jig head (35) has The upper part is drilled into the through groove, and the large spring (36) is fitted onto the outer peripheral surface of the upper part of the jig head (35). An outer convex ring is provided on the upper edge of the jig head (35). An inward convex ring is provided on the inner ring of the through groove of the piston (3). Both ends of the large spring (36) abut against the lower surface of the outer convex ring and the upper surface of the convex ring, respectively. The lower part of the jig head (35) has a triangular chuck structure, and the lower part of the jig head (35) A plurality of sets of screw holes and square holes are drilled in the radial direction from the outside to the inside of the peripheral surface of the jig head (35), and the square holes are provided in each of the square holes, and the large hexagon socket head screws (40) are provided in the screw holes, and the small springs (39) are provided between the large hexagon socket head screws (40) and the corresponding square wedges (38). The screw heads (37) are attached to the center of the lower part of the jig head (35), and the square wedges ( a clutch slider (41) for supporting the screw head (37) and an outer peripheral surface supporting the screw head (37) which is slidably connected to the inner wall of the jig head (35) by the clutch slider (41); the deep-sea exploration vehicle (4) is attached to the lower part of the screw head (37) by the coupling (42); and the small hexagon socket head screw (43) is tightened circumferentially to the coupling (42).

7. 2. The hydro-launching device for an underwater vehicle according to claim 1, wherein the platform floating body stabilizing member includes a boom telescopic sleeve (18), a boom telescopic shaft (19), a boom (20), a cross (21), a ball head (22), and a float (23), wherein the boom (20) is suspended outward on the upper surface of the platform deck (5), one end of the boom (20) is hingedly connected to the upper surface of the platform deck (5), and the other end of the boom (20) is freely connected to the float (23) by the cross (21) and the ball head (22), and the boom telescopic sleeve (18) has one end hingedly connected to the upper surface of the platform deck (5) and the other end connected to one end of the boom telescopic shaft (19), and the other end of the boom telescopic shaft (19) is hingedly connected to the boom (20).

8. 2. The hydro-launching device for an underwater vehicle according to claim 1, wherein the vortex generating body includes a stirring rod (15), a screw propeller (16), a four-section connecting plate (27), a suspension arm (28), and a sliding connection assembly, wherein the four-section connecting plate (27) is provided in parallel above and below and spaced apart, and the two plates are connected by the four stirring rods (15) arranged in sequence and spaced apart along the circumferential direction, at least one suspension arm (28) is attached to one side of each stirring rod (15) in the same direction, and each suspension arm (28) is attached to the screw propeller (16), and the upper surface of the upper four-section connecting plate (27) is connected to the lower floating body assembly by one sliding connection assembly, and the lower surface of the lower four-section connecting plate (27) is connected to the intake and drainage tank (32) by another sliding connection assembly.

9. The guide rail running structure includes rolling bearings (14), studs (17), nuts (29), rollers (30), slide rails (31), and plugs (34). Four studs (17) are provided, each corresponding to one of the stirring rods (15). One end of each stud (17) passes through the four-section connecting plate (27) and the end of the stirring rod (15) and is screwed thereto. The stud (17) is fastened to the four-section connecting plate (27) by two nuts (29) provided above and below. A wheel axle is attached laterally to the other end of the stud (17), and both ends of the wheel axle are supported forward by one of the rolling bearings (14).

9. The hydraulic launching device for an underwater vehicle according to claim 8, wherein the rollers (30) are in rolling contact with the inner surfaces of the slide rails (31), the rollers (30) are parallel to the central axes of the studs (17), the rollers (30) are attached to the studs (17) by the plugs (34), the slide rails (31) are annular, and one each is attached to the intake and drain tank (32) and the lower floating body assembly, the slide rails (31) have a U-shaped cross section and are provided with inward folds at their ends, the rolling bearings (14) are provided in the corresponding slide rails (31), and the rolling connection between the folds and the rollers (30) reduces collisions.

10. A method for operating a hydraulic launching device for an underwater vehicle according to any one of claims 1 to 9, comprising: Step 1 is the lifting stage, S11: putting the hydraulic launching device into water and connecting it to the seabed with the anchor chain, immersing the lower floating body assembly in water, and lifting the deep-sea exploration vehicle onto the platform deck with the crane assembly; S12 attaching the deep-sea exploration vehicle to the automatic release jig; and Step 1 includes: S13, in which the crane assembly lifts the deep-sea exploration vessel with its head pointing downward, and lowers the deep-sea exploration vessel and the automatic release jig in order into the deep-sea exploration vessel launch tube, so as to center the axes of the automatic release jig and the deep-sea exploration vessel launch tube; Step 2 is a locking phase, Step 2 includes continuing to lower the automatic release jig to a predetermined position, and releasing a rope between the crane assembly and the automatic release jig after the automatic release jig is positioned on the deep-sea exploration vehicle launch tube (S21); Step 3 is a vortex generation stage, S31: adjusting the draft of the hydro-launching device by the platform floating body stabilizing member to maintain its stability; S32: activating the vortex generating body to generate a vortex by the action of fluid viscosity force; and Step 3 includes S33, in which the water in the inner ring is sucked into the tank by the suction and drainage tank, and then the water is discharged from the outer ring of the suction and drainage tank (32), forming a local low pressure area. Step 4, a release and firing phase, S41: releasing the positional restriction between the automatic release jig and the deep-sea exploration vessel launch tube, and separating the automatic release jig from the deep-sea exploration vessel when a collision occurs once in the deep-sea exploration vessel launch tube; and Step 4 includes S42, in which the deep-sea exploration vehicle is hydraulically rapidly submerged into deep water, thereby achieving hydraulic launching of the deep-sea exploration vehicle.

Images