Crushing device for cleaning underwater reefs

Abstract

The invention discloses a crushing device for underwater reef cleaning, and belongs to the technical field of metal casting cooling. Comprising a circular ring positioning frame and traction hanging chains which are fixedly connected to the outer edge of the circular ring positioning frame and are circumferentially arranged at equal intervals, three sets of stretching units are circumferentially arranged on the circular ring positioning frame at equal intervals, and a gravel shoveling unit is arranged at the bottom of each set of stretching unit so that the circular ring positioning frame can be supported on an underwater reef; one-time vertical impact is synchronously converted into coupling crushing force of one main crushing point and a plurality of auxiliary crushing points, and compared with a gravity stone crushing device which can only provide single vertical impact energy and only form isolated crushing pits on the surface of a reef during hammering each time in the prior art, the gravity stone crushing device has the advantages that after the collided chassis is used for bearing the collision of a heavy stone crushing block, the collided stone crushing pit is formed; and when the first detachable gravel blocks are driven to be vertically chiseled in, the multiple second detachable gravel blocks are synchronously pressed down through the pressing-down smashing plate, so that multi-point stress areas which are uniformly distributed are formed on the surface of the reef through single-time impact.

Description

Technical Field

[0001] This invention relates to the field of reef crushing technology, and more specifically, to a crushing device for underwater reef clearing. Background Technology

[0002] In reef removal operations in inland waterways and shallow areas of the water-land transition zone, traditional large reef-blasting vessels cannot enter the work area due to their deep draft and gentle slope, while land-based drilling rigs and tracked equipment cannot establish stable construction platforms due to the rugged underwater terrain. Therefore, existing technologies generally employ mechanical gravity rock-breaking devices. These devices utilize floating cranes to carry heavy rock-breaking rods, which are then lifted to a certain height by a lifting mechanism and allowed to fall freely. The immense impact kinetic energy repeatedly hammers the underwater reefs, thus breaking them apart.

[0003] However, existing gravity rock-breaking devices mounted on reef vessels can only provide a single vertical impact energy during actual operation. Each hammer blow only creates an isolated crushing pit on the reef surface, lacking the ability to convert impact kinetic energy into horizontal or multi-point coupled crushing forces. In water-land transition zones, reefs often have a mushroom-shaped or jagged, angular, flat-layered structure, and the compressive strength of granite and limestone is much higher than their tensile strength. The stress wave generated by a single-point impact decays rapidly in a hemispherical shape, failing to induce effective tensile or shear cracks within the rock mass.

[0004] Existing technologies generally attempt to expand the crushing radius by increasing the weight of the crushing rod or raising the drop height. However, this not only exacerbates the risk of equipment overturning and the hidden danger of hammer jamming, but also relies solely on the compressive damage principle of vertical impact. Its single-point vertical hammering cannot form a multi-source stress superposition zone inside the rock mass, and the cracks cannot expand and connect, making it difficult for the rock mass between adjacent hammering points to penetrate and fracture. Ultimately, this results in the problem of only creating a pit and not cracking a large area. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a crushing device for underwater reef clearing, which aims to solve the above-mentioned technical problems.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A crushing device for underwater reef clearing includes a circular positioning frame and a traction chain fixedly connected to the outer edge of the circular positioning frame and arranged equidistantly in a circular pattern. The traction chain is attached to the traction equipment of a work vessel, and a heavy crushing rock block located at the top center of the circular positioning frame is hoisted by the traction equipment of the work vessel. Three sets of tensioning units are arranged equidistantly in a circular pattern on the circular positioning frame, and each set of tensioning units is equipped with a crushing rock removal unit at the bottom to support the circular positioning frame on the underwater reef. Several high-strength pull ropes are fixedly connected to the inner ring edge of the circular positioning frame and are arranged in a circumferentially at equal intervals. The first reef breaking mechanism is suspended at the bottom center position of the circular positioning frame by the several high-strength pull ropes. Three sets of second reef breaking mechanisms are arranged in a circumferentially at equal intervals on the outer circumference of the first reef breaking mechanism. The first reef crushing mechanism includes an impact-bearing chassis and a first detachable rock block located at the bottom of the impact-bearing chassis. The second reef crushing mechanism includes a second detachable rock block. A downward pressing plate is configured on the side of the impact-bearing chassis at the top of each second detachable rock block. The heavy rock block is thrown down by the traction equipment of the work vessel to impact the impact-bearing chassis, so as to drive the first detachable rock block to crush while the downward pressing plate presses down on all the second detachable rock blocks for synchronous multi-point crushing.

[0008] As a further aspect of the present invention: a plurality of main frame rods are fixedly connected in a circumferentially equidistant manner at the bottom edge of the circular positioning frame, and a spindle sleeve is fixedly installed at the bottom center of the impacted chassis via the main frame rods. The first reef breaking mechanism also includes a first convex block fixedly connected to the center of the lower surface of the impacted chassis. A first threaded rod is fixedly connected to the lower surface of the first convex block. A concave sleeve is fitted around the outside of the first threaded rod, and a threaded sleeve is fixedly installed on one side of the open end of the concave sleeve for the first threaded rod to be fitted. The first threaded rod meshes with the threaded sleeve, and a first detachable stone block is assembled at the end of the concave sleeve. The threaded sleeve is inserted entirely into the spindle sleeve, and a plurality of positioning balls that fit against the inner wall of the spindle sleeve are fixedly connected in a circumferentially equidistant manner on the outer surface of the threaded sleeve.

[0009] As a further aspect of the present invention: three equidistantly arranged oblique positioning units are configured on the outer edge of the shaft ring sleeve. Each oblique positioning unit includes an external hinge plate fixedly connected to the outer edge of the shaft ring sleeve. Each external hinge plate is hinged with an outwardly extending outwardly folding slide frame. Slide grooves are provided on both sides of the outwardly folding slide frame. A second limiting rod is fixedly installed on one side of the outwardly folding slide frame, and a waterproof servo motor is fixedly installed on the other side. A second threaded rod is fixedly installed on the output end of the waterproof servo motor. The second threaded rod and the second limiting rod are arranged flush along the extension direction of the outwardly folding slide frame. The second reef breaking mechanism includes a straight cylinder assembled on the slide groove of each outwardly folding slide frame.

[0010] As a further aspect of the present invention: the second reef breaking mechanism further includes movable sleeve units fixedly configured on both sides of the straight cylinder. The movable sleeve unit includes a slider that is slidably clamped in the slide grooves on both sides of the outward-turning slide frame. Clamping disc sleeves are movably installed on both sides of the slider. The clamping disc sleeve on one side of the slider is movably connected to the side wall of the straight cylinder, and the clamping disc sleeve on the other side of the slider is movably connected to a side sleeve. The side sleeves on both sides of the straight cylinder are slidably engaged with the second limiting rod and meshed with the second threaded rod, respectively. The interior of each clamping disc sleeve is provided with a cavity area, and a counterweight is fixedly installed at the inner side position of the cavity area.

[0011] As a further aspect of the present invention: the second reef crushing mechanism further includes a magnetic coating fixedly installed on the inner wall of the straight cylinder, and a magnetic ring inner tube is adsorbed and configured inside the straight cylinder through the magnetic coating. Both ends of the straight cylinder are fixedly installed with limiting collars for limiting the disengagement of the magnetic ring inner tube. A positioning horizontal plate is fixedly connected at the middle position inside the straight cylinder. A slotted insert plate is slidably installed on the outside of the positioning horizontal plate and is integrally fitted inside the magnetic ring inner tube. An assembly threaded sleeve is fixedly installed at the bottom of the slotted insert plate, and a second detachable crushed stone block is assembled through the assembly threaded sleeve.

[0012] As a further aspect of the present invention: the tensioning unit includes a first hydraulic tensioning rod fixedly installed on the bottom surface of the circular positioning frame, and the surface of the circular positioning frame is provided with an insertion hole on both sides of the first hydraulic tensioning rod, and a first limiting rod is inserted and installed through the insertion hole. A platform plate connected to the output end of the first hydraulic tensioning rod is fixedly installed on one end of the first limiting rod on the bottom surface of the circular positioning frame. Vertically arranged first hinged sleeve rods are fixedly connected on both sides of the bottom surface of the platform plate.

[0013] As a further embodiment of the present invention: a notched sleeve block is fixedly installed on one side of the extended end of the outward-turning slide frame; the first hinged sleeve rods on both sides of the bottom surface of the platform support plate are respectively movably hinged to both sides of the notched sleeve block to obliquely lift the outward-turning slide frame; the stone shovel separation unit includes an outward-turning block movably installed in the notch of the notched sleeve block; a shovel-shaped partition is fixedly installed on the side of the outward-turning block; a pad partition is fixedly installed on the bottom surface of the shovel-shaped partition; external support rods are fixedly connected to both sides of the pad partition; and a second hydraulic tension rod is fixedly installed at the bottom of the platform support plate.

[0014] As a further aspect of the present invention: a circular sleeve partition plate is fixedly installed on the output end of the second hydraulic tension rod and slidably sleeved on the first hinged sleeve rod. A second hinged sleeve rod is movably installed on both sides of the circular sleeve partition plate, and the second hinged sleeve rod is movably hinged to the external support rods on both sides of the pad partition plate to pull and adjust the tilt angle of the shovel-shaped partition plate. A first air supply pump is fixedly installed inside the first convex block, and a first air storage cavity is fixedly installed on one side of the top output end of the first air supply pump.

[0015] As a further aspect of the present invention: a second convex block is fixedly installed at the end of the slotted insert plate away from the second detachable crushed stone block, a second air supply pump is fixedly installed inside the second convex block, a second air storage cavity is fixedly installed on the top output end of the second air supply pump, an impact protrusion is fixedly installed on the top of the second convex block, and an outward peeling unit is arranged at the middle position of the surface of the shovel-shaped partition.

[0016] As a further aspect of the present invention: the extended peeling unit includes an inner nested shell, a third hydraulic tension rod is fixedly installed inside the inner nested shell, a conical peeling shovel is fixedly installed on the output end of the third hydraulic tension rod, and the conical peeling shovel is entirely attached to the upper surface of the shovel-shaped partition.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects: (1) By converting a single vertical impact into a coupled crushing force of a main crushing point and multiple auxiliary crushing points, compared with the existing gravity crushing device that can only provide a single vertical impact energy and forms an isolated crushing pit on the surface of the reef with each hammer blow, the impacted chassis receives the impact of heavy crushing blocks. While driving the first detachable crushing block to fall vertically down the reef, multiple second detachable crushing blocks are simultaneously pressed down by the pressing plate. This makes a single impact form a uniformly distributed multi-point stress zone on the surface of the reef. The multi-source stresses superimpose and interfere with each other inside the rock mass, inducing the expansion and connection of cracks. This solves the problem of the single-point impact stress wave decaying rapidly in a hemispherical shape and the difficulty of the rock mass to penetrate and fracture between adjacent hammer blows. It directly causes through cracks to be generated on each surface of the reef to increase the efficiency of crushing.

[0018] (2) Through the coordinated configuration of the guiding and attitude-maintaining structures in the first and second reef crushing mechanisms, the impact energy can be efficiently transmitted to the interior of the reef in the vertical direction, ensuring the coaxiality of the vertical movement of the first reef crushing mechanism. Combined with the buoyancy area formed by the first and second air storage cavities at the upper end of the crushing mechanism, the first and second reef crushing mechanisms maintain a weight distribution state with the upper part lighter and the lower part heavier. At the same time, the two-stage sliding buffer formed by the magnetic ring inner cylinder and the slotted insert plate during the impact process absorbs the lateral disturbance. Compared with the traditional gravity crushing device that relies solely on the weight of the crushing rod and lacks attitude-maintaining and guiding structures, it effectively avoids energy loss caused by deflection and improves the stability of the crushing operation.

[0019] (3) Through the linkage adjustment of the tensioning unit and the crushed stone removal unit, the circular positioning frame can achieve stable support and height adjustment on the uneven underwater reef terrain. At the same time, the shovel-shaped partition switches between the two functional states of support foot and stone-raking tool. In conjunction with the extension and retraction of the conical stripping shovel in the extended stripping unit, the crushed stone is hooked, stripped and collected after the crushing operation. It is suitable for the complex working conditions of shallow water, gentle slope and rugged terrain in the shallow beach area of ​​the water-land transition zone. It solves the problem that the existing large reef blasting vessel cannot enter the working area due to its deep draft and that land drilling rigs and tracked equipment cannot establish a stable construction platform. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the circular positioning frame of the present invention; Figure 3 This is a partial half-section diagram of the first reef breaking mechanism of the present invention; Figure 4 This is a schematic diagram of the oblique positioning unit of the present invention; Figure 5 This is a schematic diagram of the partial disassembly state of the second reef crushing mechanism of the present invention; Figure 6 This is a partial half-section diagram of the movable sleeve unit of the present invention; Figure 7 This is a schematic diagram of the structure of the stretching unit of the present invention; Figure 8 This is a schematic diagram of the structure of the stone crushing and separating unit of the present invention; Figure 9This is a schematic diagram of the partially disassembled state of the extended peeling unit of the present invention.

[0022] Figure Labels 1. Circular positioning frame; 2. Traction chain; 3. Heavy-duty stone crusher; 4. Tensioning unit; 41. First hydraulic tensioning rod; 42. Platform support plate; 43. First limiting rod; 44. First hinged sleeve rod; 45. Circular sleeve partition; 46. Second hydraulic tensioning rod; 47. Second hinged sleeve rod; 5. Crushed stone removal unit; 51. Outward turning block; 52. Shovel-shaped partition; 53. Pad partition; 54. External support rod; 55. Extended peeling unit; 551. Inner nested shell; 552. Third hydraulic tension rod; 553. Conical peeling spade; 6. High-tenacity draw rope; 7. First reef crushing mechanism; 71. Impact-bearing chassis; 72. First convex block; 73. First air supply pump; 74. First air storage cavity; 75. First threaded rod; 76. Concave sleeve; 77. Threaded sleeve; 78. Positioning ball; 79. First detachable crushed stone block; 8. Angled positioning unit; 81. External hinge plate; 82. Outward-turning slide frame; 83. Second limit rod; 84. Waterproof servo motor; 85. Second threaded rod; 86. Notched sleeve block; 9. Second reef crushing mechanism; 91. Straight cylinder; 92. Limiting collar; 93. Magnetic coating; 94. Magnetic ring inner cylinder; 95. Positioning cross plate; 96. Grooved insert plate; 97. Assembled threaded sleeve; 98. Second detachable crushed stone block; 99. Movable sleeve unit; 991. Clamping disc sleeve; 992. Slider; 993. Side-connecting sleeve; 994. Cavity area; 995. Counterweight; 910. Second convex block; 911. Second air supply pump; 912. Second air storage cavity; 913. Impacted convex block; 10. Shaft ring sleeve; 11. Intercalation round opening; 12. Downward pressing plate; 13. Main frame rod.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0024] The following is a detailed description of a crushing device for underwater reef clearing provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; other alternative methods can be used by those skilled in the art for some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0025] like Figures 1 to 9 As shown, this embodiment of the invention provides a crushing device for underwater reef clearing, including a circular positioning frame 1 and a traction chain 2 fixedly connected to the outer edge of the circular positioning frame 1 and arranged equidistantly in a circular pattern. The traction chain 2 is attached to the traction equipment of the work vessel, and a heavy crushing rock block 3 located at the top of the center of the circular positioning frame 1 is hoisted by the traction equipment of the work vessel. Three sets of tensioning units 4 are arranged equidistantly in a circular pattern on the circular positioning frame 1. Each set of tensioning units 4 is equipped with a crushing rock removal unit 5 at the bottom to support the circular positioning frame 1 on the underwater reef. Several high-strength pull ropes 6 are fixedly connected to the inner ring edge of the circular positioning frame 1 and are arranged in a circular pattern at equal intervals. A first reef breaking mechanism 7 is suspended at the bottom center position of the circular positioning frame 1 by several high-strength pull ropes 6. Three sets of second reef breaking mechanisms 9 are arranged in a circular pattern at equal intervals on the outer circumference of the first reef breaking mechanism 7. The first reef crushing mechanism 7 includes an impact-bearing chassis 71 and a first detachable crushed stone block 79 located at the bottom of the impact-bearing chassis 71. The second reef crushing mechanism 9 includes a second detachable crushed stone block 98. The side of the impact-bearing chassis 71 is equipped with a downward pressing plate 12 at the top of each second detachable crushed stone block 98. The heavy crushing stone block 3 is thrown down by the traction equipment of the work vessel to impact the impact-bearing chassis 71, so as to drive the first detachable crushed stone block 79 to crush the stone, while the downward pressing plate 12 presses down on all the second detachable crushed stone blocks 98 for synchronous multi-point crushing.

[0026] To address the problem that existing gravity-driven rock-crushing devices can only provide a single vertical impact energy, creating isolated crushing pits on the surface of the rock with each hammer blow, failing to form a multi-source stress superposition zone within the rock mass, and preventing cracks from propagating and connecting, thus hindering the interconnection of rock masses between adjacent impact points, the above-mentioned technical solution is adopted. This solution mainly consists of a circular positioning frame 1, a traction chain 2, heavy-duty rock-crushing blocks 3, a tensioning unit 4, a rock-crushing removal unit 5, a high-strength pull rope 6, a first rock-crushing mechanism 7, a second rock-crushing mechanism 9, and a downward-pressing hammer plate 1. The device consists of two parts. The circular positioning frame 1 serves as the support and positioning foundation for the entire device. It adopts a circular frame structure, and its outer edge is fixedly connected with traction chains 2 arranged in a circular pattern at equal intervals. The traction chains 2 are used to hook onto the traction equipment of the work vessel to realize the overall lifting and lowering positioning of the device. The heavy stone block 3 is also hoisted to the top of the center of the circular positioning frame 1 by another traction device. The heavy stone block 3 serves as the main impact power source. During the operation, it is lifted and lowered by the traction device, allowing it to fall freely and generate impact kinetic energy.

[0027] The configured tensioning units 4 are arranged in three sets, equidistantly distributed in a circular pattern on the ring positioning frame 1. Each set of tensioning units 4 has a stone-removing unit 5 at its bottom. The stone-removing unit 5 is used to cooperate with the tensioning units 4 hanging down around the ring positioning frame 1 to support the reef surface during underwater operations, so that the ring positioning frame 1 can be stably supported on the underwater reef terrain, effectively preventing the device from overturning or shifting during subsequent stone-breaking operations. High-strength pull ropes 6 are arranged equidistantly in a circular pattern and fixedly connected to the inner ring edge of the ring positioning frame 1, so that the first reef-breaking mechanism 7 can be positioned in a suspended manner below the center of the ring positioning frame 1, ensuring that its center of force is aligned with the landing point of the heavy stone block 3.

[0028] The first reef-breaking mechanism 7 includes an impact-receiving chassis 71 and a first detachable stone block 79 located at the bottom of the impact-receiving chassis 71. The impact-receiving chassis 71 serves as the direct impact-bearing component for the heavy stone block 3, absorbing the impact energy of the downward-thrown heavy stone block 3 and transferring this energy to the first detachable stone block 79, driving the first detachable stone block 79 to vertically strike the reef. The second reef-breaking mechanism 9 consists of three sets, arranged equidistantly in a circular pattern on the outer circumference of the first reef-breaking mechanism 7. Each set of the second reef-breaking mechanism 9 includes a second detachable stone block 98, forming multiple auxiliary stone-breaking points around the periphery of the first reef-breaking mechanism 7. A downward-pressing plate 12 is located on the side of the impact-receiving chassis 71, with its position corresponding to the top of each second detachable stone block 98. This allows the impact-receiving chassis 71 to synchronously drive the downward-pressing plate 12 when impacted by the heavy stone block 3 and moving downwards. Plate 12 moves downward, thereby pressing down all the second detachable rock fragments 98, realizing the synchronous impact of the first reef crushing mechanism 7 and multiple second reef crushing mechanisms 9 on the rock fragments. This creates multiple synchronously acting auxiliary crushing points around the main crushing point, enabling a single impact to simultaneously generate one main crushing point and multiple auxiliary crushing points. The multi-source stress is superimposed and interferes with each other inside the rock mass, inducing the expansion and connection of cracks. This changes the process from single-point vertical hammering to synchronous multi-point crushing, improving the crushing efficiency and crushing range of a single hammering.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a plurality of main frame rods 13 are fixedly connected in a circumferentially equidistant manner at the bottom edge of the circular positioning frame 1, and a central ring sleeve 10 is fixedly installed at the bottom center position of the impact chassis 71 through the main frame rods 13. The first reef breaking mechanism 7 also includes a first convex block 72 fixedly connected to the center position of the lower surface of the impact chassis 71, and a first threaded rod 75 is fixedly connected to the lower surface of the first convex block 72. The outer surface of the first threaded rod 75 is fitted with a... A concave sleeve 76 is provided, and a threaded sleeve 77 is fixedly installed on one side of the open end of the concave sleeve 76 into which the first threaded rod 75 is inserted. The first threaded rod 75 meshes with the threaded sleeve 77, and a first detachable stone block 79 is assembled at the end of the concave sleeve 76. The threaded sleeve 77 is inserted into the shaft ring 10 as a whole, and a number of positioning balls 78 that fit against the inner wall of the shaft ring 10 are fixedly connected in a circumferentially equidistant manner on the outer surface of the threaded sleeve 77.

[0030] The main frame rod 13 is circumferentially and equidistantly fixed to the bottom edge of the circular positioning frame 1. It extends downwards, with a central ring sleeve 10 fixedly installed at the bottom center of the impact-bearing chassis 71. The central ring sleeve 10 is a sleeve structure with a central through hole, and its inner wall forms a smooth guide surface. This provides vertical movement guidance and radial positioning support for the subsequent first rock-breaking mechanism 7, ensuring that the overall center of gravity of the first rock-breaking mechanism 7 remains coaxially aligned with the impact point of the heavy rock-crushing block 3. A first convex block 72 is fixedly connected to the center of the lower surface of the impact-bearing chassis 71. It is shaped like a boss and is used to concentrate and transmit the impact force borne by the impact-bearing chassis 71 downwards. A first threaded rod 75, an externally threaded rod, is fixedly connected to the lower surface of the first convex block 72, extending downwards in the vertical direction. The concave sleeve 76 is fitted over the outside of the first threaded rod 75. The concave sleeve 76 has a cylindrical structure, and a threaded sleeve 77 is fixedly installed on one side of its top open end. The threaded sleeve 77 has an internal thread that meshes with the external thread of the first threaded rod 75. The axial position of the concave sleeve 76 relative to the first threaded rod 75 can be adjusted by rotating the concave sleeve 76. The overall length of the first threaded rod 75 and the concave sleeve 76 can be changed by rotating the sleeve, so as to make adaptive adjustments during actual work. The first detachable stone block 79 is assembled at the end of the concave sleeve 76, so as to facilitate the replacement of the first detachable stone block 79. The threaded sleeve 77 is inserted into the shaft ring 10, and several positioning balls 78 are fixedly connected to the outer surface of the threaded sleeve 77 in a circumferentially equidistant manner. These positioning balls 78 form a close fit with the inner wall of the shaft ring 10, so that the threaded sleeve 77 can slide freely in the vertical direction within the shaft ring 10. At the same time, through the rolling cooperation between the positioning balls 78 and the inner wall of the shaft ring 10, the coaxiality of the first reef breaking mechanism 7 during the up and down movement is ensured, and the uneven force or jamming of the rock crusher caused by skewness is avoided.

[0031] During operation, when the heavy rock-crushing block 3 impacts the impact-receiving chassis 71, the impact force is transmitted sequentially through the impact-receiving chassis 71, the first convex block 72, the first threaded rod 75, and the concave sleeve 76 to the first detachable rock-crushing block 79, forming a complete vertical impact transmission path. Simultaneously, the threaded sleeve 77 outside the concave sleeve 76, through the rolling engagement of the positioning ball 78 with the inner wall of the shaft ring 10, achieves guidance and low-friction movement of the first rock-crushing mechanism 7 within the shaft ring 10. This ensures both high efficiency in impact energy transmission and the vertical movement stability of the rock-crushing drill during repeated impacts, preventing energy loss or drill bit damage caused by swaying.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, three equidistantly arranged oblique positioning units 8 are configured on the outer edge of the shaft ring sleeve 10. Each oblique positioning unit 8 includes an external hinge plate 81 fixedly connected to the outer edge of the shaft ring sleeve 10. Each external hinge plate 81 is hinged with an outwardly extending outwardly extending sliding groove frame 82. Sliding grooves are provided on both sides of the outwardly extending sliding groove frame 82. A second limiting rod 83 is fixedly installed on one side of the outwardly extending sliding groove frame 82, and a waterproof servo motor 84 is fixedly installed on the other side. A second threaded rod 85 is fixedly installed on the output end of the waterproof servo motor 84. The second threaded rod 85 and the second limiting rod 83 are arranged flush with each other along the extension direction of the outwardly extending sliding groove frame 82. The second reef breaking mechanism 9 includes a straight cylinder 91 assembled on the sliding groove of each outwardly extending sliding groove frame 82.

[0033] The outer edge of the configured shaft ring sleeve 10 is fixedly connected to three equidistantly arranged oblique positioning units 8. These three oblique positioning units 8 are evenly distributed in the circumferential direction to provide oblique support and position adjustment foundation for the second reef crushing mechanism 9. Each oblique positioning unit 8 includes an external hinge plate 81. One end of the external hinge plate 81 is fixedly connected to the outer edge of the shaft ring sleeve 10, and the other end is connected to an outward flipping slide frame 82 by a hinge. The outward flipping slide frame 82 is a long strip frame structure, which allows the outward flipping slide frame 82 to flip outward or retract inward around the hinge point, thereby changing its tilt angle relative to the shaft ring sleeve 10. On both sides of the outward flipping slide frame 82, through slide grooves are opened along the length direction. These two slide grooves are parallel and opposite to each other to provide sliding guidance for the second reef crushing mechanism 9. A second limiting rod 83 is fixedly installed on one side of the outward-turning slide frame 82. The second limiting rod 83 is a smooth rod arranged flush with the extension direction of the outward-turning slide frame 82. A waterproof servo motor 84 is fixedly installed on the other side of the outward-turning slide frame 82. A second threaded rod 85 is fixedly installed at the output end of the waterproof servo motor 84 along the extension direction of the outward-turning slide frame 82. The second threaded rod 85 and the second limiting rod 83 are parallel to each other and both extend along the extension direction of the outward-turning slide frame 82. Driven by the waterproof servo motor 84, the second threaded rod 85 can rotate in both directions, thereby cooperating with the second reef breaking mechanism 9 to adjust the position of the second reef breaking mechanism 9 along the length direction of the outward-turning slide frame 82.

[0034] The straight cylinder 91 in the second reef crushing mechanism 9 is assembled on the groove of each outward-turning slide frame 82. Specifically, the straight cylinder 91 is installed in the slide grooves on both sides of the outward-turning slide frame 82 through the sliding structure on both sides, so that the straight cylinder 91 can move along the slide direction to adjust the position of each straight cylinder 91 in real time according to the needs. On the one hand, it realizes the circumferential positioning of the second reef crushing mechanism 9 relative to the first reef crushing mechanism 7. On the other hand, through the hinge structure of the outward-turning slide frame 82 and the cooperation of the second threaded rod 85 driven by the waterproof servo motor 84 and the second limit rod 83, the radial position of the straight cylinder 91 is adjusted to adapt to the reef surface with different shapes and crushing requirements. This ensures that the crushing points of multiple second reef crushing mechanisms 9 can be evenly distributed around the main crushing point, providing stable structural support and position adjustment capability for synchronous multi-point crushing.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the second reef breaking mechanism 9 also includes movable sleeve units 99 fixedly configured on both sides of the straight cylinder 91. The movable sleeve unit 99 includes a slider 992 that is slidably clamped in the slide grooves on both sides of the outward-turning slide frame 82. Clamping disc sleeves 991 are movably installed on both sides of the slider 992. One side of the clamping disc sleeve 991 is movably connected to the side wall of the straight cylinder 91, and the other side of the clamping disc sleeve 991 is movably connected to a side sleeve 993. The side sleeves 993 on both sides of the straight cylinder 91 are slidably engaged with the second limiting rod 83 and meshed with the second threaded rod 85, respectively. The inside of each clamping disc sleeve 991 is provided with a cavity area 994, and a counterweight 995 is fixedly installed at the inner side position of the cavity area 994.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown, the second reef crushing mechanism 9 also includes a magnetic coating 93 fixedly installed on the inner wall of the straight cylinder 91, and a magnetic ring inner cylinder 94 is adsorbed and configured inside the straight cylinder 91 through the magnetic coating 93. Both ends of the straight cylinder 91 are fixedly installed with limiting collars 92 for limiting the disengagement of the magnetic ring inner cylinder 94. A positioning horizontal plate 95 is fixedly connected at the middle position inside the straight cylinder 91. A slotted insert plate 96 is slidably installed on the outside of the positioning horizontal plate 95 and is integrally fitted inside the magnetic ring inner cylinder 94. An assembly threaded sleeve 97 is fixedly installed at the bottom of the slotted insert plate 96, and a second detachable stone block 98 is assembled through the assembly threaded sleeve 97.

[0037] The movable sleeve unit 99 is fixedly disposed on both sides of the straight cylinder 91, and is used to slide the straight cylinder 91 to the outward-turning slide frame 82 and realize posture adjustment. The movable sleeve unit 99 includes a slider 992, which is slidably clamped in the slide grooves on both sides of the outward-turning slide frame 82, so that the slider 992 can move along the slide groove direction. Clamping disc sleeves 991 are movably installed on both sides of the slider 992. One clamping disc sleeve 991 is movably connected to the side wall of the straight cylinder 91, and the other clamping disc sleeve 991 is movably connected to a side sleeve 993. Through this connection method, the side sleeves 993 on both sides of the straight cylinder 91 are slidably engaged with the second limiting rod 83 and form an engagement relationship with the second threaded rod 85. When the waterproof servo motor 84 drives the second threaded rod 85 to rotate, the side sleeve 993 drives the slider 992 to move axially along the second threaded rod 85, which in turn drives the straight cylinder 91 to move along the groove direction of the outward-turned groove frame 82, thereby realizing the adjustment of the radial position of the second detachable crushed stone block 98.

[0038] Each clamping disc sleeve 991 has a cavity 994 inside. A counterweight 995 is fixedly installed on the side of the cavity 994. By setting the counterweight 995 in the cavity 994 of each clamping disc sleeve 991, the weight distribution on both sides of the straight cylinder 91 is optimized. By utilizing the balance of gravity and buoyancy, and in conjunction with the movable connection structure between the movable sleeve unit 99 and the straight cylinder 91, the center of gravity of the straight cylinder 91 can be automatically adjusted during the process of the waterproof servo motor 84 driving the second threaded rod 85 to adjust the radial position of the straight cylinder 91. This ensures that the straight cylinder 91 maintains a vertical posture during the movement, thereby ensuring that the crushing plate 12 below the second detachable crushed stone block 98 can be pressed down vertically onto the reef, avoiding uneven load or drill jamming caused by tilting, and improving the stability and crushing effect of the crushing operation. The second reef breaking mechanism 9 also includes a magnetic coating 93 fixedly installed on the inner wall of the straight cylinder 91. The magnetic coating 93 has magnetic adsorption capability. A magnetic ring inner cylinder 94 is adsorbed and configured inside the straight cylinder 91 through the magnetic coating 93. The magnetic ring inner cylinder 94 is cylindrical in shape. Its outer wall is adsorbed and attached to the inner wall of the straight cylinder 91 through the magnetic coating 93, so that the magnetic ring inner cylinder 94 can slide along the axial direction of the straight cylinder 91 while maintaining radial positioning. Limiting collars 92 are fixedly installed at both ends of the straight cylinder 91 to prevent the magnetic ring inner cylinder 94 from detaching from the two ends of the straight cylinder 91, ensuring that it moves within the working stroke range.

[0039] A positioning horizontal plate 95 is fixedly connected at the middle position inside the straight cylinder 91. The positioning horizontal plate 95 is arranged to span the radial direction of the straight cylinder 91. A slotted insert plate 96 is slidably installed on the outside of the positioning horizontal plate 95. The slotted insert plate 96 is fitted inside the magnetic ring inner cylinder 94 and slides with the positioning horizontal plate 95 through its slot structure, so that the slotted insert plate 96 can move along the axial direction of the straight cylinder 91. When the impact chassis 71 drives the downward pressing plate 12 to press down, the downward pressing plate 12 directly acts on one end of the second convex block 910, that is, the top of the impacted convex block 913. The impact force is transmitted to the second detachable crushed stone block 98 through the second convex block 910 and the slotted insert plate 96 in sequence. During this process, the slotted insert plate 96 slides along the positioning plate 95, while the magnetic ring inner cylinder 94 adheres to the inner wall of the straight cylinder 91 through the magnetic coating 93. On the one hand, it dampens and absorbs the vibration and sway during the impact process; on the other hand, the sliding cooperation between the magnetic ring inner cylinder 94 and the slotted insert plate 96 ensures the vertical guiding accuracy of the second detachable stone block 98, enabling efficient transfer of impact energy when the second detachable stone block 98 is impacted. At the same time, the cooperation between the magnetic force and the sliding structure effectively absorbs the lateral disturbance during the impact process. The magnetic ring inner cylinder 94 moves downward relative to the straight cylinder 91 during the downward movement, while the slotted insert plate 96 can also move downward relative to the magnetic ring inner cylinder 94. The space of the double downward movement can minimize the impact of the second detachable stone block 98 on one end of the straight cylinder 91 during the downward movement, ensuring the stability of the vertical chiseling posture of the second detachable stone block 98 while improving the stability of the entire device.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the tensioning unit 4 includes a first hydraulic tensioning rod 41 fixedly installed on the bottom surface of the circular positioning frame 1. The surface of the circular positioning frame 1 is provided with an insertion hole 11 on both sides of the first hydraulic tensioning rod 41, and a first limiting rod 43 is inserted and installed through the insertion hole 11. A platform plate 42 connected to the output end of the first hydraulic tensioning rod 41 is fixedly installed on one end of the first limiting rod 43 on the bottom surface of the circular positioning frame 1. Vertically arranged first hinged sleeve rods 44 are fixedly connected on both sides of the bottom surface of the platform plate 42.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a notched sleeve block 86 is fixedly installed on one side of the extended end of the outward-turning slide frame 82. The first hinged sleeve rods 44 on both sides of the bottom surface of the platform support plate 42 are respectively movably hinged to both sides of the notched sleeve block 86 to obliquely lift the outward-turning slide frame 82. The stone shovel separation unit 5 includes an outward-turning block 51 movably installed in the notch of the notched sleeve block 86. A shovel-shaped partition 52 is fixedly installed on the side of the outward-turning block 51. A pad partition 53 is fixedly installed on the bottom surface of the shovel-shaped partition 52. External support rods 54 are fixedly connected to both sides of the pad partition 53. A second hydraulic tension rod 46 is fixedly installed on the bottom of the platform support plate 42.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a circular sleeve partition 45 is fixedly installed on the output end of the second hydraulic tension rod 46 and slidably sleeved on the first hinged sleeve rod 44. A second hinged sleeve rod 47 is movably installed on both sides of the circular sleeve partition 45, and the second hinged sleeve rod 47 is movably hinged to the external support rods 54 on both sides of the pad partition 53 to pull and adjust the tilt angle of the shovel-shaped partition 52. A first air supply pump 73 is fixedly installed inside the first convex block 72, and a first air storage cavity 74 is fixedly installed on one side of the top output end of the first air supply pump 73.

[0043] The configured tensioning unit 4 includes a first hydraulic tensioning rod 41 fixedly installed on the bottom surface of the circular positioning frame 1. The output end of the first hydraulic tensioning rod 41 extends and retracts in the vertical direction to provide power for driving the platform pallet 42 to rise and fall. Through the sliding cooperation between the first limiting rod 43 and the through round opening 11, the lifting and lowering movement of the platform pallet 42 is vertically guided to ensure that the movement of the platform pallet 42 in the vertical direction remains straight. At both sides of the bottom surface of the platform pallet 42, a first hinged sleeve rod 44 extending vertically downward is fixedly connected to it for hinged connection with the outward flipping slide frame 82.

[0044] Each of the extended ends of the configured outward-turning chute frame 82 is fixedly equipped with a notched sleeve block 86. The notched sleeve block 86 has a notched structure and hinge holes on both sides. The first hinged sleeve rods 44 on both sides of the bottom surface of the platform support plate 42 are respectively hinged to the two sides of the notched sleeve block 86. Thus, the outward-turning chute frame 82 can be inclinedly lifted through the hinged cooperation between the first hinged sleeve rods 44 and the notched sleeve block 86. When the output end of the first hydraulic tension rod 41 extends downward, the platform support plate 42 drives the first hinged sleeve rod 44 to move downward. The first hinged sleeve rod 44 pulls the outward-turning chute frame 82 inward around its hinge point with the external hinge plate 81 through the notched sleeve block 86, that is, it flips towards the center of the axial ring sleeve 10. At this time, the end of the outward-turning chute frame 82 moves closer to the center, increasing the distance between the circular positioning frame 1 and the reef surface. Conversely, when the output end of the first hydraulic tension rod 41 retracts upward, the platform support plate 42 drives the first hinged sleeve rod 44 to move upward. The first hinged sleeve rod 44 pushes the outward-turning slide frame 82 to unfold outward around the hinge point through the notched sleeve block 86, that is, to flip away from the center of the axial ring sleeve 10. At this time, its end extends outward, reducing the distance between the circular positioning frame 1 and the reef surface, thereby realizing the height adjustment and stable support of the circular positioning frame 1 on the underwater reef terrain.

[0045] The configured rock-removing unit 5 includes an outwardly rotating block 51 movably installed in the recess of the recessed sleeve block 86. The outwardly rotating block 51 is installed inside the recess of the recessed sleeve block 86 via a hinge structure and can rotate around the hinge axis. A shovel-shaped partition 52 is fixedly installed on the side of the outwardly rotating block 51. The shovel-shaped partition 52 has an overall shovel-shaped or plate-shaped structure, and a pad partition 53 is fixedly installed on its bottom surface. The pad partition 53 serves as a bottom support surface for contacting the reef surface. External support rods 54 are fixedly connected to both sides of the pad partition 53. The external support rods 54 extend outward and are used to connect with the adjustment structure of the second hydraulic tension rod 46. A second hydraulic tension rod 46 is fixedly installed at the bottom of the platform support plate 42. The output end of the second hydraulic tension rod 46 extends and retracts in the vertical direction to drive the tilt angle adjustment of the shovel-shaped partition 52. A circular sleeve partition 45 is fixedly installed on the output end of the second hydraulic tension rod 46. The circular sleeve partition 45 is slidably sleeved on the outside of the first hinged sleeve rod 44, so that the circular sleeve partition 45 can slide along the axial direction of the first hinged sleeve rod 44. A second hinged sleeve rod 47 is movably installed on both sides of the circular sleeve partition 45, and is movably hinged to the external support rods 54 on both sides of the pad partition 53 through the second hinged sleeve rod 47. When the output end of the second hydraulic tension rod 46 extends downward, the annular sleeve partition 45 slides downward along the first hinged sleeve rod 44, and the second hinged sleeve rod 47 moves downward accordingly. Through the external support rod 54, the pad partition 53 is pulled to flip outward, which in turn drives the shovel-shaped partition 52 to flip outward around the hinge point between the outward flipping block 51 and the notched sleeve block 86, increasing the tilt angle of the shovel-shaped partition 52. At this time, the shovel-shaped partition 52 is in the outward flipping state and can be used as a stone-raking tool to hook, flip, peel or collect underwater gravel during the lifting or moving of the annular positioning frame 1. Conversely, when the output end of the second hydraulic tension rod 46 retracts upward, the annular sleeve partition 45 slides upward along the first hinged sleeve rod 44, and the second hinged sleeve rod 47 moves upward accordingly. This pushes the pad partition 53 inward through the external support rod 54, thereby causing the shovel-shaped partition 52 to retract inward around the hinge point, reducing the tilt angle of the shovel-shaped partition 52 until it is generally horizontal. At this point, the shovel-shaped partition 52 functions as a bottom support foot, with its bottom pad partition 53 forming stable contact with the reef surface, providing a stable support foundation for the annular positioning frame 1. Through the above adjustments, the shovel-shaped partition 52 can switch between two functional states: a support foot and a rock-raking tool. On the one hand, it provides stable support during rock-breaking operations; on the other hand, it changes to a rock-raking state when it needs to clean or turn over the rocks, adapting to the complex working conditions of underwater reef-breaking operations.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a second convex block 910 is fixedly installed on the end of the slotted insert plate 96 away from the second detachable crushed stone block 98. A second air supply pump 911 is fixedly installed inside the second convex block 910. A second air storage cavity 912 is fixedly installed on the top output end of the second air supply pump 911. A collision-bearing protrusion 913 is fixedly installed on the top of the second convex block 910. An outward peeling unit 55 is arranged at the middle position of the surface of the shovel-shaped partition 52.

[0047] A second convex block 910 is fixedly installed on the end of the slotted insert plate 96 away from the second detachable crushed stone block 98. The second convex block 910 has a boss-like structure and is used to receive the impact energy of the downward pressing plate 12 and transfer the energy to the slotted insert plate 96 and the second detachable crushed stone block 98. A second air supply pump 911 is fixedly installed inside the second convex block 910. A second air storage cavity 912 is fixedly installed on the top output end of the second air supply pump 911. The second air storage cavity 912 is a hollow closed cavity structure located at the top of the second convex block 910. Gas is injected into the second air storage cavity 912 by the second air supply pump 911, so that a sealed air chamber is formed inside the second air storage cavity 912, thereby creating a buoyancy area at the upper end of the second reef crushing mechanism 9. Because the second detachable crushed stone block 98 and its lower slotted insert plate 96 have a relatively large mass, the overall structure exhibits a top-light, bottom-heavy center of gravity distribution. The buoyancy generated by the second air storage cavity 912 further enhances the buoyancy effect at the upper end, enabling the second reef crushing mechanism 9 to maintain a vertically downward motion in the water when impacted by the downward impact plate 12. This avoids tilting due to center of gravity shift or water flow disturbance, thus ensuring that the second detachable crushed stone block 98 impacts the reef vertically. The top of the second convex block 910 is fixedly equipped with an impact-receiving protrusion 913, which is a raised impact receiving part used to directly contact the downward impact plate 12, concentrating the impact force of the downward impact plate 12 to the second convex block 910.

[0048] A first air pump 73 is fixedly installed inside the first convex block 72, and a first air storage cavity 74 is fixedly installed on one side of the top output end of the first air pump 73. The first air storage cavity 74 is a hollow closed cavity structure located at the top of the first convex block 72. Gas is injected into the first air storage cavity 74 by the first air pump 73, forming a sealed air chamber inside the first air storage cavity 74. A buoyancy area is formed at the upper end of the first reef breaking mechanism 7. Since the first detachable stone block 79 and its lower concave sleeve 76 have a large mass, the overall structure presents a center of gravity distribution that is light at the top and heavy at the bottom. The buoyancy generated by the first air storage cavity 74 further enhances the buoyancy effect at the upper end, enabling the first reef breaking mechanism 7 to maintain a vertical downward movement posture in the water when impacted by the heavy stone block 3, avoiding tilting caused by center of gravity shift or water flow disturbance, thereby ensuring that the first detachable stone block 79 hits the reef vertically.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the extended peeling unit 55 includes an inner nested shell 551, a third hydraulic tension rod 552 is fixedly installed inside the inner nested shell 551, and a conical peeling shovel 553 is fixedly installed on the output end of the third hydraulic tension rod 552. The conical peeling shovel 553 is attached to the upper surface of the shovel-shaped partition 52.

[0050] The extended stripping unit 55 is positioned at the center of the surface of the shovel-shaped partition 52. When the shovel-shaped partition 52 is used as a rock-raking tool, it further strips and collects the crushed stones. The extended stripping unit 55 includes an inner nested shell 551, which is fixedly installed at the center of the surface of the shovel-shaped partition 52. A third hydraulic tension rod 552 is fixedly installed inside the inner nested shell 551. The output end of the third hydraulic tension rod 552 extends along the extension direction of the shovel-shaped partition 52 and is fixedly fitted with a conical stripping shovel 553, which is entirely attached to the upper surface of the shovel-shaped partition 52. When the output end of the third hydraulic tension rod 552 extends outward, the conical stripping shovel 553 slides outward along the upper surface of the shovel-shaped partition 52. Its conical structure can insert into the gaps between the crushed stones or scrape and strip them, assisting in the collection or removal of the broken stones and improving the cleaning efficiency of underwater reef breaking operations.

[0051] The usage method provided by this invention is as follows: In use, the circular positioning frame 1 is hoisted to the underwater working area by the traction equipment of the work vessel. The traction chain 2 is suspended by the traction equipment of the work vessel. The heavy rock-breaking block 3 is hoisted to the top of the center of the circular positioning frame 1 by another traction equipment. When the circular positioning frame 1 is lowered close to the surface of the reef, the first hydraulic tension rod 41 in the tension unit 4 is activated. The output end of the first hydraulic tension rod 41 extends downward, driving the platform support plate 42 to move vertically downward along the first limit rod 43. The first hinge sleeve rods 44 on both sides of the bottom surface of the platform support plate 42 move downward accordingly. Through the notched sleeve block 86, the outward flipping slide frame 82 is pulled inward around its hinge point with the external hinge plate 81, so that the outward flipping slide frame 82 flips towards the center of the axial ring sleeve 10. At this time, the distance between the circular positioning frame 1 and the surface of the reef increases, and the circular positioning frame 1 is lifted upward relative to the reef.

[0052] At the same time, the second hydraulic tension rod 46 is activated. The output end of the second hydraulic tension rod 46 retracts upward, causing the annular sleeve partition 45 to slide upward along the first hinged sleeve rod 44. The second hinged sleeve rod 47 moves upward accordingly, pushing the pad partition 53 to flip inward through the external support rod 54. This causes the shovel-shaped partition 52 to retract inward around the hinge point between the outward flipping block 51 and the notched sleeve block 86, reducing the tilt angle of the shovel-shaped partition 52 until the whole is in a horizontal arrangement. At this time, the pad partition 53 on the bottom surface of the shovel-shaped partition 52 forms a stable contact with the reef surface, and the annular positioning frame 1 completes the support and positioning on the underwater reef terrain.

[0053] Then, the heavy rock-crushing block 3 is lifted to a predetermined height by the traction equipment of the work vessel and released. The heavy rock-crushing block 3 falls freely and impacts the impact-receiving chassis 71. The impact-receiving chassis 71 absorbs the impact and moves downward. The impact force is transmitted sequentially through the first convex block 72 to the first detachable crushed stone block 79, driving the first detachable crushed stone block 79 to smash vertically downward toward the reef. At the same time, the downward pressing plate 12 on the side of the impact-receiving chassis 71 moves downward synchronously with the impact-receiving chassis 71. The downward pressing plate 12 directly acts on the impact-receiving protrusion 913. The impact force is transmitted through the second convex block 910 to the slotted insert plate 96. The slotted insert plate 96 slides downward along the positioning cross plate 95, driving the second detachable crushed stone block 98 to smash vertically downward toward the reef, realizing the synchronous multi-point crushing of the first reef crushing mechanism 7 and the three second reef crushing mechanisms 9.

[0054] During the impact, the positioning balls 78 on the outer surface of the threaded sleeve 77 roll in cooperation with the inner wall of the shaft ring sleeve 10 to ensure the vertical guiding accuracy of the first reef breaking mechanism 7. The magnetic ring inner sleeve 94 adheres to the inner wall of the straight cylinder 91 through the magnetic coating 93. When the slotted insert plate 96 slides downward, the magnetic ring inner sleeve 94 moves downward relative to the straight cylinder 91, and the slotted insert plate 96 moves downward relative to the magnetic ring inner sleeve 94 at the same time, forming a two-stage sliding buffer to absorb the lateral disturbance during the impact.

[0055] After one impact crushing operation, if it is necessary to switch the function of the stone shovel unit 5, the second hydraulic tension rod 46 is activated. The output end of the second hydraulic tension rod 46 extends downward, driving the annular sleeve partition 45 to slide downward along the first hinged sleeve rod 44. The second hinged sleeve rod 47 moves downward accordingly, pulling the pad block partition 53 to flip outward through the external support rod 54. This causes the shovel-shaped partition 52 to flip outward around the hinge point between the outward flipping block 51 and the notched sleeve block 86, increasing the tilt angle of the shovel-shaped partition 52. The shovel-shaped partition 52 is in the outward flipping state. At this time, the shovel-shaped partition 52 is used as a stone rake tool. The crushed stone is hooked, peeled, or collected by the lifting or moving of the annular positioning frame 1.

[0056] When the shovel-shaped partition 52 is in the stone-raking state, the third hydraulic tension rod 552 in the extended stripping unit 55 is activated. The output end of the third hydraulic tension rod 552 extends outward, driving the conical stripping shovel 553 to slide outward along the upper surface of the shovel-shaped partition 52. The conical structure of the conical stripping shovel 553 is inserted into the gap of the crushed stone to scrape and strip the crushed stone, assisting in the collection or removal of the crushed stone.

[0057] During the rock-breaking operation, the first air supply pump 73 fills the first air storage cavity 74 with gas, forming a sealed air chamber inside the first air storage cavity 74. This creates a buoyancy region at the upper end of the first rock-breaking mechanism 7. Simultaneously, the second air supply pump 911 fills the second air storage cavity 912 with gas, forming a sealed air chamber inside the second air storage cavity 912. This also creates a buoyancy region at the upper end of the second rock-breaking mechanism 9. The buoyancy generated by the first air storage cavity 74 and the second air storage cavity 912 provides upward buoyancy to the upper ends of the first rock-breaking mechanism 7 and the second rock-breaking mechanism 9. Combined with the counterweight 995 formed by the counterweight block 995 in the cavity area 994 inside the clamping disc sleeve 991, the first rock-breaking mechanism 7 and the second rock-breaking mechanism 9 maintain a weight distribution that is lighter at the top and heavier at the bottom, thus maintaining a vertically downward motion posture during the impact.

[0058] After a single crushing operation is completed, the circular positioning frame 1 is repositioned to the next working position through the coordinated adjustment of the first hydraulic tension rod 41 and the second hydraulic tension rod 46. The above crushing process is repeated until the reef crushing operation in the target area is completed.

[0059] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0060] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A crushing device for underwater reef clearing, comprising a circular positioning frame (1) and a traction chain (2) fixedly connected to the outer edge of the circular positioning frame (1) and arranged equidistantly in a circular pattern, wherein the traction chain (2) is attached to the traction equipment of a work vessel, and a heavy crushing rock block (3) located at the top of the center of the circular positioning frame (1) is hoisted by the traction equipment of the work vessel, characterized in that: The circular positioning frame (1) is provided with three sets of tensioning units (4) arranged in a circular pattern at equal intervals. Each set of tensioning units (4) is equipped with a gravel removal unit (5) at the bottom to support the circular positioning frame (1) on the underwater reef. Several high-strength pull ropes (6) arranged in a circular pattern at equal intervals are fixedly connected to the inner ring edge of the circular positioning frame (1), and a first reef breaking mechanism (7) is suspended at the bottom center position of the circular positioning frame (1) by several high-strength pull ropes (6). Three sets of second reef breaking mechanisms (9) are arranged in a circular pattern at equal intervals on the outer circumference of the first reef breaking mechanism (7). The first reef crushing mechanism (7) includes a collision-bearing chassis (71) and a first detachable crushed stone block (79) located at the bottom of the collision-bearing chassis (71). The second reef crushing mechanism (9) includes a second detachable crushed stone block (98). The side of the collision-bearing chassis (71) is equipped with a pressing plate (12) at the top of each second detachable crushed stone block (98). The heavy crushing stone block (3) is thrown down by the traction equipment of the work vessel to impact the collision-bearing chassis (71), so as to drive the first detachable crushed stone block (79) to crush the stone while using the pressing plate (12) to press down all the second detachable crushed stone blocks (98) for synchronous multi-point crushing.

2. The crushing device for underwater reef clearing according to claim 1, characterized in that, The bottom edge of the circular positioning frame (1) is fixedly connected with several main frame rods (13) at equal intervals around the circumference. A central ring sleeve (10) is fixedly installed at the bottom center of the impact chassis (71) via the main frame rods (13). The first reef breaking mechanism (7) also includes a first convex block (72) fixedly connected to the center of the lower surface of the impact chassis (71). A first threaded rod (75) is fixedly connected to the lower surface of the first convex block (72). The first threaded rod (75) is fitted with an inner concave sleeve. A threaded sleeve (77) is fixedly installed on one side of the opening end of the concave sleeve (76) into which the first threaded rod (75) is inserted. The first threaded rod (75) meshes with the threaded sleeve (77), and a first detachable stone block (79) is assembled at the end of the concave sleeve (76). The threaded sleeve (77) is inserted into the shaft ring sleeve (10), and a number of positioning balls (78) that fit against the inner wall of the shaft ring sleeve (10) are fixedly connected in a circumferentially equidistant manner on the outer surface of the threaded sleeve (77).

3. The crushing device for underwater reef clearing according to claim 2, characterized in that, Three equidistant oblique positioning units (8) are arranged on the outer edge of the shaft ring sleeve (10). The oblique positioning unit (8) includes an external hinge plate (81) fixedly connected to the outer edge of the shaft ring sleeve (10). Each external hinge plate (81) is hinged with an outwardly extending outward sliding groove frame (82). Slide grooves are provided on both sides of the outward sliding groove frame (82). A second limiting rod (83) is fixedly installed on one side of the outward sliding groove frame (82), and a waterproof servo motor (84) is fixedly installed on the other side. A second threaded rod (85) is fixedly installed on the output end of the waterproof servo motor (84). The second threaded rod (85) and the second limiting rod (83) are arranged parallel to each other along the extension direction of the outward sliding groove frame (82). The second reef breaking mechanism (9) includes a straight cylinder (91) assembled on the slide groove of each outward sliding groove frame (82).

4. A crushing device for underwater reef clearing according to claim 3, characterized in that, The second reef breaking mechanism (9) also includes a movable sleeve unit (99) fixedly configured on both sides of the straight cylinder (91). The movable sleeve unit (99) includes a slider (992) that is slidably clamped in the slide grooves on both sides of the outward-turning slide frame (82). Both sides of the slider (992) are movably installed with clamping disc sleeves (991), and one side of the clamping disc sleeve (991) of the slider (992) is movably connected to the side wall of the straight cylinder (91). The other side of the clamping disc sleeve (991) of the slider (992) is movably connected with a side sleeve (993). The side sleeves (993) on both sides of the straight cylinder (91) are slidably engaged with the second limiting rod (83) and meshed with the second threaded rod (85). The inside of the clamping disc sleeve (991) is provided with a cavity area (994), and a counterweight (995) is fixedly installed at the inner side position of the cavity area (994).

5. A crushing device for underwater reef clearing according to claim 4, characterized in that, The second reef crushing mechanism (9) also includes a magnetic coating (93) fixedly installed on the inner wall of the straight cylinder (91), and a magnetic ring inner tube (94) is adsorbed and configured inside the straight cylinder (91) through the magnetic coating (93). Both ends of the straight cylinder (91) are fixedly installed with limiting collars (92) for limiting the disengagement of the magnetic ring inner tube (94). A positioning horizontal plate (95) is fixedly connected at the middle position inside the straight cylinder (91). A slotted insert plate (96) is slidably installed on the outside of the positioning horizontal plate (95) and is integrally fitted inside the magnetic ring inner tube (94). An assembly threaded sleeve (97) is fixedly installed at the bottom of the slotted insert plate (96), and a second detachable stone block (98) is assembled through the assembly threaded sleeve (97).

6. A crushing device for underwater reef clearing according to claim 5, characterized in that, The tensioning unit (4) includes a first hydraulic tensioning rod (41) fixedly installed on the bottom surface of the ring positioning frame (1), and the surface of the ring positioning frame (1) is provided with an insertion round hole (11) on both sides of the first hydraulic tensioning rod (41), and a first limiting rod (43) is inserted and installed through the insertion round hole (11). A platform plate (42) connected to the output end of the first hydraulic tensioning rod (41) is fixedly installed on one end of the first limiting rod (43) on the bottom surface of the ring positioning frame (1), and a vertically arranged first hinged sleeve rod (44) is fixedly connected on both sides of the bottom surface of the platform plate (42).

7. A crushing device for underwater reef clearing according to claim 6, characterized in that, A notched sleeve block (86) is fixedly installed on one side of the extended end of the outward-turning slide frame (82). The first hinged sleeve rods (44) on both sides of the bottom surface of the platform support plate (42) are respectively movably hinged to the two sides of the notched sleeve block (86) to lift the outward-turning slide frame (82) obliquely. The stone shovel unit (5) includes an outward-turning block (51) movably installed in the notch of the notched sleeve block (86). A shovel-shaped partition plate (52) is fixedly installed on the side of the outward-turning block (51). A pad block partition plate (53) is fixedly installed on the bottom surface of the shovel-shaped partition plate (52). An external support rod (54) is fixedly connected on both sides of the pad block partition plate (53). A second hydraulic tension rod (46) is fixedly installed on the bottom of the platform support plate (42).

8. A crushing device for underwater reef clearing according to claim 7, characterized in that, A circular sleeve partition (45) is fixedly installed on the output end of the second hydraulic tension rod (46) and slidably sleeved on the first hinged sleeve rod (44). A second hinged sleeve rod (47) is movably installed on both sides of the circular sleeve partition (45), and is movably hinged to the external support rods (54) on both sides of the pad partition (53) through the second hinged sleeve rod (47) to pull and adjust the tilt angle of the shovel-shaped partition (52). A first air supply pump (73) is fixedly installed inside the first convex block (72), and a first air storage cavity (74) is fixedly installed on one side of the top output end of the first air supply pump (73).

9. A crushing device for underwater reef clearing according to claim 8, characterized in that, A second convex block (910) is fixedly installed on the end of the slotted insert plate (96) away from the second detachable crushed stone block (98). A second air supply pump (911) is fixedly installed inside the second convex block (910). A second air storage cavity (912) is fixedly installed on the top output end of the second air supply pump (911). A collision-bearing protrusion (913) is fixedly installed on the top of the second convex block (910). An outward peeling unit (55) is arranged at the middle position of the surface of the shovel-shaped partition (52).

10. A crushing device for underwater reef clearing according to claim 9, characterized in that, The extended peeling unit (55) includes an inner nested shell (551), a third hydraulic tension rod (552) is fixedly installed inside the inner nested shell (551), and a conical peeling shovel (553) is fixedly installed on the output end of the third hydraulic tension rod (552). The conical peeling shovel (553) is attached to the upper surface of the shovel-shaped partition (52).

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