Anti-floating mechanism for underwater rock breaking ship
By designing an anti-buoyancy mechanism on the underwater rock-breaking vessel and increasing the contact area between the movable plate and the water using transmission and drive mechanisms, the problems of hull swaying and tilting were solved, resulting in higher operational efficiency and safety.
Patent Information
- Application Number
- CN202520111913.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-17
AI Technical Summary
When underwater rock-breaking vessels are in operation, they are prone to swaying and tilting due to impact forces or rock reaction forces, which affects operational efficiency and increases safety risks.
An anti-buoyancy mechanism was designed, including a transmission mechanism and a drive mechanism. Through the combination of columns, rotating rollers, walking tracks, movable plates and fixed plates, the transmission mechanism drives the columns and rotating rollers to descend, and the drive mechanism changes the air pressure in the installation slot through an elastic air storage cylinder to unfold the movable plates to increase the contact area with water and enhance the stability of the hull.
It improves the impact resistance and stability of the underwater rock-breaking vessel, protects the hull structure, reduces safety risks, and improves operational efficiency.
Smart Images

Figure CN223618896U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of marine anti-buoyancy mechanisms, specifically relating to an underwater rock-breaking marine anti-buoyancy mechanism. Background Technology
[0002] Underwater hydraulic rock breaking technology, as one of the core technologies for rock breaking in the field of water conservancy / waterway engineering construction, has played a crucial role in various aspects such as marine resource development, underwater structure demolition, waterway dredging, and underwater rescue in recent years. This technology utilizes the high-pressure energy of a hydraulic system to effectively break or cut hard underwater objects using specialized breaking tools (such as hydraulic breakers and hydraulic shears). Combining the maneuverability of ships with the powerful breaking capabilities of underwater hydraulic rock breaking tools, this technology can perform efficient and precise operations in complex and ever-changing underwater environments.
[0003] Current underwater rock-breaking vessels are prone to swaying and tilting under impact forces or rock reaction forces during operation, which not only affects operational efficiency but may also damage the hull structure and increase safety risks. Therefore, we propose an anti-buoyancy mechanism for underwater rock-breaking vessels to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to solve the problem that current underwater rock-breaking vessels are prone to swaying and tilting under impact or rock reaction forces during operation, which not only affects operational efficiency but may also damage the hull structure and increase safety risks.
[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0006] An anti-buoyancy mechanism for an underwater rock-breaking vessel includes a rock-breaking vessel hull. Two sets of columns are mounted on the hull, each set containing a drive motor. Rotating rollers driven by the drive motors are located at the lower ends of both sets of columns. Tracks are fitted onto the two rotating rollers of each set of columns. Multiple support pillars are fixedly installed at the lower parts of the two sets of columns. Fixed plates are fixedly installed at the lower ends of the multiple support pillars. Mounting grooves are formed on both sides of the fixed plates. Two movable plates are movably mounted within the mounting grooves. A piston is located at one end of each movable plate that is close to the other, and it fits against the wall of the mounting groove. The rock-breaking vessel hull is equipped with a transmission mechanism that drives the two sets of columns to move up and down, and a drive mechanism that drives the two movable plates to move within the mounting grooves.
[0007] Further specifying, the transmission mechanism includes a positioning seat, a mounting column, and a gear. The positioning seat is fixedly mounted on the hull of the rock-breaking vessel. An opening for the column to pass through is located at the center of the positioning seat. The mounting column is fixedly mounted on the positioning seat and has a self-locking motor mounted on it. The gear is fixedly mounted on the output shaft of the self-locking motor. A groove is formed on the column, and a rack adapted to the gear is fixedly mounted within the groove. A clearance groove is provided on the side of the positioning seat near the gear, through which the gear meshes with the rack. With this structural design, when the gear rotates, it drives the column to move vertically up and down under the limiting action of the positioning seat via the rack, thereby driving the rotating roller and the track.
[0008] Further specifying, the drive mechanism includes two elastic air cylinders and two air supply pipes. The two elastic air cylinders are fixedly installed on the hull of the rock-breaking vessel, and the two air supply pipes are respectively fixedly installed between the two elastic air cylinders and the fixed plate. One end of each air supply pipe is fixedly connected to the lower part of an adjacent elastic air cylinder, and the other end is fixedly inserted into the middle of the fixed plate. The two elastic air cylinders are connected to the mounting groove through the air supply pipes. With this structural design, squeezing or stretching the elastic air cylinders can transport the air inside the cylinders to the fixed plate through the air supply pipes, changing the air pressure in the mounting groove, thereby driving the piston and movable plate to move within the mounting groove.
[0009] Furthermore, connecting rods are fixedly installed at the upper ends of both sets of columns, and extrusion discs are fixedly installed on the connecting rods. The lower ends of the extrusion discs are connected to the upper ends of the elastic air storage cylinder. With this structural design, the connecting rods and extrusion discs move together with the columns, and can generate corresponding extrusion on the elastic air storage cylinder according to the water immersion depth of the lower end of the columns.
[0010] Furthermore, a partition is fixedly installed in the middle of the mounting groove, dividing the groove into two spaces. Two movable plates are located on either side of the partition, and the ends of the two air supply pipes extend into the two spaces divided by the partition within the mounting groove. This structural design, by evenly dividing the space within the mounting groove through the partition, ensures that the two pistons within the mounting groove are subjected to the same force, thereby causing the movable plates to undergo identical positional changes.
[0011] Furthermore, the two ends of the fixed plate pass between the rotating rollers on the two sets of columns, and the surfaces of both the fixed plate and the movable plate are coated with a corrosion-resistant paint. This structural design is simple and easy to use.
[0012] The utility model adopting the above technical solution has the following advantages:
[0013] This invention uses a transmission mechanism to move the column, which can bring the rotating roller and the walking track downward into the water for underwater movement. With the cooperation of the drive mechanism and the transmission mechanism, the two movable plates can unfold outward after the walking track enters the water, thereby increasing the contact area between the movable plates and the fixed plates and the water. When the hull is subjected to impact force or rock reaction force, the resistance at the movable plates and the fixed plates increases, thereby increasing the hull's impact resistance and stability. This not only improves the efficiency of operation, but also protects the hull structure and reduces safety risks. Attached Figure Description
[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0015] Figure 1 This is a schematic diagram of the anti-buoyancy mechanism for an underwater rock-breaking vessel according to the present invention.
[0016] Figure 2 This is a schematic diagram of the column, transmission mechanism and drive mechanism in the anti-buoyancy mechanism for an underwater rock-breaking vessel of this utility model.
[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0018] Figure 4 This is a cross-sectional structural diagram of the fixing plate in an anti-buoyancy mechanism for an underwater rock-breaking vessel according to the present invention;
[0019] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.
[0020] The symbols for the main components are explained below:
[0021] 1. Hull of the rock-breaking vessel;
[0022] 2. Column; 21. Rotating roller; 22. Track;
[0023] 3. Support pillar;
[0024] 4. Fixed plate; 41. Movable plate; 42. Piston; 43. Partition plate;
[0025] 5. Positioning seat; 51. Mounting post; 52. Gear;
[0026] 6. Flexible gas storage tank; 61. Gas delivery pipe;
[0027] 7. Connecting rod; 71. Extrusion disc. Detailed Implementation
[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.
[0029] like Figures 1-5 As shown, the present invention discloses an anti-buoyancy mechanism for an underwater rock-breaking vessel, comprising a rock-breaking vessel hull 1, two sets of columns 2 on the rock-breaking vessel hull 1, each set of columns 2 having a drive motor inside, and a rotating roller 21 driven by the drive motor at the lower end of each set of columns 2. Tracks 22 are fitted onto the two rotating rollers 21 of each set of columns 2. Multiple support pillars 3 are fixedly installed at the lower part of the two sets of columns 2, and a fixing plate 4 is fixedly installed at the lower end of the multiple support pillars 3. Mounting grooves are opened on both sides of the fixing plate 4, and two movable plates 41 are movably installed in the mounting grooves. A piston 42 is provided at one end of the two movable plates 41 that is close to each other and fits against the wall of the mounting groove. The rock-breaking vessel hull 1 is provided with a transmission mechanism that can drive the two sets of columns 2 to move up and down, and a drive mechanism that can drive the two movable plates 41 to move within the mounting grooves.
[0030] The transmission mechanism includes a positioning seat 5, a mounting column 51, and a gear 52. The positioning seat 5 is fixedly installed on the hull 1 of the rock-breaking vessel. The center of the positioning seat 5 has an opening for the column 2 to pass through. The mounting column 51 is fixedly installed on the positioning seat 5. A self-locking motor is installed on the mounting column 51. The gear 52 is fixedly installed on the output shaft of the self-locking motor. When the self-locking motor stops rotating, the output shaft is locked, so that the gear 52 is in a locked state. A groove is provided on the column 2. A rack that matches the gear 52 is fixedly installed in the groove. A clearance groove is provided on the side of the positioning seat 5 near the gear 52. The gear 52 meshes with the rack through the clearance groove.
[0031] The drive mechanism includes two elastic air cylinders 6 and two air supply pipes 61. The two elastic air cylinders 6 are fixedly installed on the hull 1 of the rock-breaking vessel. The two air supply pipes 61 are respectively fixedly installed between the two elastic air cylinders 6 and the fixed plate 4. One end of the two air supply pipes 61 is fixedly connected to the lower part of the adjacent elastic air cylinders 6, and the other end is fixedly inserted into the middle of the fixed plate 4. The two elastic air cylinders 6 are connected to the mounting groove through the air supply pipes 61.
[0032] Both sets of columns 2 are fixedly installed with connecting rods 7 at their upper ends. A compression plate 71 is fixedly installed on the connecting rod 7. The lower end of the compression plate 71 is connected to the upper end of the elastic air storage cylinder 6. Through the connecting rod 7 and the compression plate 71, when the column 2 moves down, a force is applied to the upper end of the elastic air storage cylinder 6, so that the elastic air storage cylinder 6 is compressed.
[0033] A partition 43 is fixedly installed in the middle of the mounting slot, which divides the mounting slot into two spaces. Two movable plates 41 are located on both sides of the partition 43. The ends of the two air supply pipes 61 extend into the two spaces divided by the partition 43 in the mounting slot. By separating the mounting slot by the partition 43, the air pressure changes in the two spaces can be made consistent, so that the degree of unfolding of the two movable plates 41 is consistent.
[0034] The two ends of the fixed plate 4 pass between the rotating rollers 21 on the two sets of columns 2. The movement of the fixed plate 4 and the movable plate 41 will not affect the operation of the rotating rollers 21 and the walking track 22. The surfaces of the fixed plate 4 and the movable plate 41 are coated with corrosion-resistant paint, which can extend the service life of the fixed plate 4 and the movable plate 41.
[0035] The method of using this utility model is as follows:
[0036] When in use, when the rock-breaking vessel hull 1 moves above the construction point, the self-locking motor works, and through the gear 52, the column 2 moves downward under the positioning action of the positioning seat 5, and goes deep into the water until the rotating roller 21 and the walking track 22 at the end of the column 2 contact the riverbed. When the rock-breaking vessel hull 1 is carrying out rock-breaking work, the walking track 22 can drive the entire underwater rock-breaking vessel forward, improving rock-breaking efficiency.
[0037] When the column 2 moves vertically downward, it will squeeze the elastic air storage cylinder 6 through the connecting rod 7 and the extrusion plate 71. The air supply pipe 61 will transport the air in the elastic air storage cylinder 6 to the mounting groove of the fixed plate 4, so that the two movable plates 41 can be driven to move back to back through the movable plug 42, and unfold on both sides of the fixed plate 4, increasing the contact area between the movable plates 41 and the fixed plate 4 and the water. When the rock-breaking vessel hull 1 is subjected to impact force or rock reaction force, the resistance at the movable plates 41 and the fixed plate 4 increases, thereby improving the impact resistance and stability of the hull.
[0038] When the rock-breaking work of the rock-breaking vessel hull 1 is completed, the column 2 returns to its original position, the elastic air storage cylinder 6 is stretched and restored to its initial state, and the air pressure in the installation slot is reduced through the air supply pipe 61, so that the two movable plates 41 move towards each other and retract into the installation slot.
[0039] The above provides a detailed description of an anti-buoyancy mechanism for underwater rock-breaking vessels provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. An anti-buoyancy mechanism for an underwater rock-breaking vessel, comprising a rock-breaking vessel hull (1), characterized in that: The rock-breaking vessel hull (1) is provided with two sets of columns (2), each set of columns (2) is equipped with a drive motor, and the lower end of each set of columns (2) is provided with a rotating roller (21) driven by the drive motor. The two rotating rollers (21) of each set of columns (2) are fitted with walking tracks (22). Multiple support pillars (3) are fixedly installed on the lower part of the two sets of columns (2). The lower end of the multiple support pillars (3) is fixedly installed with a fixing plate (4). The fixing plate (4) has mounting grooves on both sides. Two movable plates (41) are movably installed in the mounting grooves. The two movable plates (41) are provided with pistons (42) that fit against the groove wall at the end of the two movable plates (41) that are close to each other. The rock-breaking vessel hull (1) is provided with a transmission mechanism that can drive the two sets of columns (2) to move up and down and a drive mechanism that can drive the two movable plates (41) to move in the mounting grooves.
2. The underwater rock-breaking vessel anti-buoyancy mechanism according to claim 1, characterized in that: The transmission mechanism includes a positioning seat (5), a mounting column (51), and a gear (52). The positioning seat (5) is fixedly installed on the hull (1) of the rock-breaking vessel. The center of the positioning seat (5) has an opening for the column (2) to pass through. The mounting column (51) is fixedly installed on the positioning seat (5). A self-locking motor is provided on the mounting column (51). The gear (52) is fixedly installed on the output shaft of the self-locking motor. A groove is provided on the column (2). A rack that matches the gear (52) is fixedly installed in the groove. A clearance groove is provided on the side of the positioning seat (5) near the gear (52). The gear (52) meshes with the rack through the clearance groove.
3. The underwater rock-breaking vessel anti-buoyancy mechanism according to claim 1, characterized in that: The drive mechanism includes two elastic air cylinders (6) and two air supply pipes (61). The two elastic air cylinders (6) are fixedly installed on the hull (1) of the rock-breaking vessel. The two air supply pipes (61) are respectively fixedly installed between the two elastic air cylinders (6) and the fixed plate (4). One end of the two air supply pipes (61) is fixedly connected to the lower part of the adjacent elastic air cylinders (6), and the other end is fixedly inserted into the middle of the fixed plate (4). The two elastic air cylinders (6) are connected to the mounting groove through the air supply pipes (61).
4. The underwater rock-breaking vessel anti-buoyancy mechanism according to claim 3, characterized in that: Both sets of columns (2) are fixedly installed with connecting rods (7) at their upper ends. A pressing plate (71) is fixedly installed on the connecting rod (7). The lower end of the pressing plate (71) is connected to the upper end of the elastic gas storage cylinder (6).
5. The underwater rock-breaking vessel anti-buoyancy mechanism according to claim 3, characterized in that: A partition (43) is fixedly installed in the middle of the mounting groove, dividing the mounting groove into two spaces. Two movable plates (41) are located on both sides of the partition (43), and the ends of the two gas pipes (61) extend out of the two spaces divided by the partition (43) in the mounting groove.
6. The underwater rock-breaking vessel anti-buoyancy mechanism according to claim 1, characterized in that: The two ends of the fixed plate (4) pass between the rotating rollers (21) on the two sets of columns (2), and the surfaces of the fixed plate (4) and the movable plate (41) are coated with corrosion-resistant paint.