A weight-throwing mechanism for a large ballast block of a submersible

Abstract

The application relates to a load-throwing mechanism of a large ballast block of a submarine, wherein a left fork and a right fork are arranged in the middle of a mounting seat and are connected through double-fork reset springs, a first swing rod and a first lever are arranged in the A end of the mounting seat, the rear end of the first swing rod is hinged to a first hinge seat, the front end is engaged with the front end of the first lever, the first swing rod is in abutment with the left fork, the middle part of the first lever is hinged to a second hinge seat, the rear end is driven to move through a first driving device, a first reset tension spring is arranged between the front end of the first swing rod and the second hinge seat, a second swing rod and a second lever are arranged in the B end of the mounting seat, the rear end of the second swing rod is hinged to a third hinge seat, the front end is engaged with the front end of the second lever, the second swing rod is in abutment with the right fork, the middle part of the second lever is hinged to a fourth hinge seat, the rear end is driven to move through a second driving device, and a second reset tension spring is arranged between the front end of the second swing rod and the fourth hinge seat. The load-throwing driving mode can be flexibly selected, and the load-throwing mechanism can be quickly restored to the load-hung state.

Description

Technical Field

[0001] This invention relates to the field of marine equipment, and more specifically to a ballast jettisoning mechanism for large ballast blocks of a submersible. Background Technology

[0002] With the development of marine equipment, underwater vehicles may experience malfunctions or loss of control when operating in complex deep-sea environments due to factors such as collisions, grounding, pipeline damage, power outages, and sea conditions. To ensure that underwater vehicles can obtain positive buoyancy in emergency situations and safely surface, the ballast jettisoning mechanism needs to be able to jettison ballast blocks in a timely manner. However, existing ballast jettisoning mechanisms face challenges in two aspects: firstly, how to quickly reset to a loadable state after jettisoning ballast blocks for subsequent installation; and secondly, the jettisoning methods are relatively limited, and their reliability needs further improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a jettison mechanism for large ballast blocks of a submersible, which can quickly restore the vehicle to a mountable state. The reset process is short and highly reliable, and it also greatly facilitates the secondary installation of ballast. The jettison drive method can be flexibly selected to effectively ensure the reliability of jettison.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A jettisoning mechanism for a large ballast block of a submersible includes a mounting base, a left fork, a right fork, a first lever, a first swing arm, a second lever, and a second swing arm. The left and right forks are located in the middle of the mounting base and connected by a double-fork return spring. The first swing arm and the first lever are located inside end A of the mounting base. One side of end A of the mounting base has a first hinge seat, and the other side has a second hinge seat. The rear end of the first swing arm is hinged to the first hinge seat, and its front end engages with the front end of the first lever. The first swing arm abuts against the left fork. The middle of the first lever is hinged to the second hinge seat, and its rear end is connected to the mounting base via a double-fork return spring. The first driving device on the seat drives the movement. A first return tension spring is provided between the front end of the first rocker arm and the second hinge seat. The second rocker arm and the second lever are located inside the B end of the mounting seat. A third hinge seat is provided on one side of the B end of the mounting seat, and a fourth hinge seat is provided on the other side. The rear end of the second rocker arm is hinged to the third hinge seat, and the front end is engaged with the front end of the second lever. The second rocker arm abuts against the right fork. The middle part of the second lever is hinged to the fourth hinge seat, and the rear end is driven to move by the second driving device on the mounting seat. A second return tension spring is provided between the front end of the second rocker arm and the fourth hinge seat.

[0006] The first driving device includes an electromagnet and a spring, wherein one end of the spring is fixed to the rear end of the first lever, and the other end abuts against the corresponding side wall of the mounting base. The rear end of the first lever is attracted and compressed by the electromagnet.

[0007] The front end of the first lever is connected to the corresponding side wall of the mounting base via a lever return tension spring.

[0008] The second driving device is an electric cylinder, and the output shaft of the electric cylinder is hinged to the rear end of the second lever.

[0009] An electric cylinder bracket is provided on the outside of the mounting base, and the electric cylinder is mounted on the electric cylinder bracket.

[0010] The mounting base is equipped with a main shaft, and the left and right forks are symmetrically arranged and rotatably mounted on the main shaft.

[0011] The mounting base is equipped with a double-fork limiting shaft, and the left and right forks stop contacting the double-fork limiting shaft when they are reset by the double-fork reset spring.

[0012] The mounting base has a compensator on one side and a branch block on the other side. The electric cylinder is connected to the branch block through a first pipeline, the electromagnet is connected to the branch block through a second pipeline, and the branch block is connected to the compensator through a third pipeline.

[0013] The advantages and positive effects of this invention are as follows:

[0014] 1. After the ballast is thrown, the present invention uses multiple springs to quickly reset the left fork, right fork, each swing arm and each lever to the load-bearing state. The first drive device is an electromagnet, which can be manually reset to the load-bearing state. The second drive device is an electric cylinder, which can be electrically controlled to reset to the load-bearing state. The reset process is short, reliable and greatly facilitates the secondary installation of ballast.

[0015] 2. The present invention utilizes the scissor-shaped blade portion formed by the left fork, right fork, and main shaft to lock the ballast block. The ballast release action can be completed separately by the first driving device (electromagnet) or the second driving device (electric cylinder), or by both of them. When both are completed, the two triggering methods form redundancy, and the ballast release action can be completed by either process, thus ensuring the reliability of the ballast release. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 Installation diagram of the left and right forks.

[0018] Figure 3 This is a top view of the present invention.

[0019] Figure 4 This is a schematic diagram of the invention from another angle.

[0020] Wherein, 1 is the mounting base, 2 is the electromagnet, 3 is the electric cylinder, 4 is the compensator, 5 is the branch block, 6 is the first lever, 7 is the first rocker arm, 8 is the left fork, 9 is the right fork, 10 is the second rocker arm, 11 is the second lever, 12 is the main shaft, 13 is the electric cylinder bracket, 14 is the lever return tension spring, 15 is the first return tension spring, 16 is the double fork return spring, 17 is the double fork limit shaft, 181 is the first hinge seat, 182 is the second hinge seat, 183 is the fourth hinge seat, 184 is the third hinge seat, 19 is the second return tension spring, 20 is the spring, 21 is the first pipeline, and 22 is the second pipeline. Detailed Implementation

[0021] The invention will now be described in further detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, the present invention includes a mounting base 1, a left fork 8, a right fork 9, a first lever 6, a first rocker arm 7, a second lever 11, and a second rocker arm 10. The left fork 8 and the right fork 9 are located in the middle of the mounting base 1 and connected by a double-fork return spring 16. Figure 3 As shown, the first rocker arm 7 and the first lever 6 are located inside end A of the mounting base 1. One side of end A of the mounting base 1 has a first hinge seat 181, and the other side has a second hinge seat 182. The rear end of the first rocker arm 7 is hinged to the first hinge seat 181, and the front end engages with the front end of the first lever 6. The first rocker arm 7 abuts against the left fork 8. The middle of the first lever 6 is hinged to the second hinge seat 182, and the rear end of the first lever 6 is driven to move by a first driving device located on the mounting base 1. A first return tension spring 15 is provided between the front end of the first rocker arm 7 and the second hinge seat 182. The rocker arm 10 and the second lever 11 are located inside the B end of the mounting base 1. The mounting base 1 has a third hinge seat 184 on one side and a fourth hinge seat 183 on the other side. The rear end of the second rocker arm 10 is hinged to the third hinge seat 184, and the front end is engaged with the front end of the second lever 11. The second rocker arm 10 abuts against the right fork 9. The middle part of the second lever 11 is hinged to the fourth hinge seat 183. The rear end of the second lever 11 is driven to move by a second driving device located on the mounting base 1. A second return tension spring 19 is provided between the front end of the second rocker arm 10 and the fourth hinge seat 183.

[0023] like Figure 3As shown, when the invention is in operation, when the first driving device receives a load-drop command, it drives the first lever 6 to rotate counterclockwise around the second hinge 182, which in turn drives the first rocker arm 7 to rotate clockwise around the first hinge 181. This causes the left fork 8 to expand outward without being blocked by the first rocker arm 7, opening the scissor-shaped blade between the left fork 8 and the right fork 9. The ballast block between the left fork 8 and the right fork 9 is then released, achieving load-drop. After load-drop, the left fork 7 returns to its original position under the action of the double-fork return spring 16, and the first rocker arm 7 returns to its original position under the action of the first return tension spring 15, once again pressing against the left fork. 8. When the second drive device receives the load-drop command, it drives the second lever 11 to rotate counterclockwise around the fourth hinge 183, which in turn drives the second rocker arm 10 to rotate clockwise around the third hinge 184, so that the right fork 9 is no longer blocked by the second rocker arm 10 and expands outward. Similarly, the scissor-shaped blade between the left fork 8 and the right fork 9 opens, and the ballast block between the left fork 8 and the right fork 9 is released to achieve load-drop. After the load-drop is completed, the right fork 9 is reset under the action of the double fork return spring 16, and the second rocker arm 10 is reset under the action of the second return tension spring 19 and abuts against the right fork 9 again.

[0024] like Figures 1-4 As shown, in this embodiment, the first driving device includes an electromagnet 2 and a spring 20. One end of the spring 20 is fixed to the rear end of the first lever 6, and the other end is a free end that abuts against the corresponding side wall of the mounting base 1. The rear end of the first lever 6 is attracted and compressed by the electromagnet 2. When the electromagnet 2 receives the load-drop command, the electromagnet 2 is de-energized and no longer attracts the first lever 6. The torque balance is disrupted, and the first lever 6 begins to rotate counterclockwise around the second hinge 182 under the pushing action of the spring 20 to achieve load-drop. After the load-drop action is completed, the left fork 8 is reset under the action of the double fork reset spring 16, and the first swing rod 7 is reset under the action of the first reset tension spring 15 and abuts against the left fork 8. Then the electromagnet 2 is energized, and the first lever 6 is manually rotated clockwise to make the front end of the first lever 6 re-engage with the first swing rod 7, and at the same time, the rear end of the first lever 6 is re-attracted to the electromagnet 2 and kept stationary. The first lever 6, the first swing rod 7 and the left fork 8 regain torque balance, and the left fork 8 is prevented from expanding outward by the first swing rod 7.

[0025] like Figure 3 As shown, the front end of the first lever 6 is connected to the corresponding side wall of the mounting base 1 through a lever return tension spring 14. When the first lever 6 is rotated, the lever return tension spring 14 is stretched, which can play a buffering role and prevent the first lever 6 from colliding with the inner wall of the mounting base 1. At the same time, the lever return tension spring 14 also plays an auxiliary reset role, making it easier to manually rotate the first lever 6 to reset, and also helps the electromagnet 2 to be firmly attracted.

[0026] like Figures 1-4As shown, in this embodiment, the second driving device is an electric cylinder 3. The output shaft of the electric cylinder 3 is hinged to the rear end of the second lever 11. When the electric cylinder 3 receives a load-dropping command, the electric cylinder 3 extends, and the second lever 11 begins to rotate around the fourth hinge seat 183 under the thrust of the electric cylinder 3 to achieve load-dropping. After load-dropping is completed, the second swing arm 10 returns to its original position under the action of the second return tension spring 19 and abuts against the right fork 9. Then the electric cylinder 3 retracts, and the second lever 11 rotates clockwise to re-engage with the second swing arm 10 and remain stationary. The second lever 11, the second swing arm 10, and the right fork 9 regain torque balance, and the right fork 9 is prevented from expanding outward by the second swing arm 10. Figure 2 As shown, an electric cylinder bracket 13 is provided on the outer side of the mounting base 1, and the electric cylinder 3 is mounted on the electric cylinder bracket 13.

[0027] like Figure 2 As shown, the mounting base 1 is equipped with a main shaft 12, and the left fork 8 and right fork 9 are symmetrically arranged and rotatably mounted on the main shaft 12. The invention utilizes the scissor-shaped blade portion formed by the left fork 8, right fork 9, and main shaft 12 to lock the ballast block.

[0028] like Figure 3 As shown, the mounting base 1 is provided with a double fork limiting shaft 17. After the load is thrown out, the left fork 8 and the right fork 9 are driven to reset by the double fork reset spring 16 until the lower end of the knife handle of the left fork 8 or the lower end of the knife handle of the right fork 9 contacts the double fork limiting shaft 17 and stops.

[0029] like Figure 1 As shown, the mounting base 1 has a compensator 4 on one side and a branching block 5 on the other side, wherein... Figure 4 As shown, the electric cylinder 3 is connected to the branch block 5 via the first pipe 21, as... Figure 2 As shown, electromagnet 2 is connected to the branch block 5 through the second conduit 22, as... Figure 1 As shown, the branch line block 5 is connected to the compensator 4 via a third conduit, thereby connecting the electric cylinder 3 and the electromagnet 2 to the compensator. The electric cylinder 3, electromagnet 2, compensator 4, and branch line block 5 are all technologies known in the art and are commercially available products.

[0030] The working principle of this invention is as follows:

[0031] like Figures 1-3 As shown, this invention utilizes the scissor-shaped blade formed by the left fork 8, right fork 9, and main shaft 12 to lock the ballast block. In this embodiment, the first driving device is an electromagnet 2, and the second driving device is an electric cylinder 3. This embodiment utilizes the de-energization of the electromagnet 2 and the pushing action of the electric cylinder 3, or both actions simultaneously, to complete the ballast release. The usage process of this invention is as follows:

[0032] 1. When no release command is received, the function of this invention is to lock the ballast block to prevent it from detaching from the release mechanism. The ballast block is suspended in the scissor-shaped blade area formed by the left fork 8, right fork 9, and main shaft 12. At this time, the first swing rod 7 is engaged in the first lever 6, and the second swing rod 10 is engaged in the second lever 11. The first swing rod 7 prevents the left fork 8 from expanding outward, and the second swing rod 10 prevents the right fork 9 from expanding outward. Simultaneously, the electromagnet 2 is energized, and the first lever 6 remains stationary under the attraction of the electromagnet 2. When the spring 20 is in a compressed state, the first lever 6, the first rocker arm 7, the left fork 8, and the main shaft 12 form a self-locking state, and the electric cylinder 3 is also in a de-energized state. The second lever 11, the second rocker arm 10, the right fork 9, and the main shaft 12 form a self-locking state. In addition, the electric cylinder 3 used in this embodiment is equipped with a trapezoidal lead screw, which has a self-locking function. This is a well-known technology in the field. The second lever 11 is connected to the trapezoidal lead screw and remains stationary. The entire load-release mechanism is in a torque balance state.

[0033] 2. When electromagnet 2 receives the load release command, electromagnet 2 is de-energized. At this time, the first lever 6 loses the attraction of electromagnet 2 and begins to rotate counterclockwise around the second hinge 182 under the push of spring 20. The self-locking state of electromagnet 2 is released, the torque balance is disrupted, the first rocker arm 7 can rotate clockwise around the first hinge 181, the left fork 8 is no longer blocked by the first rocker arm 7, and under the gravity of the ballast block, the left fork 8 expands outward, the scissor-shaped blade opens, and the ballast block automatically disengages from the load release mechanism under the drive of other devices, completing the load release action. After the ballast is released, the left fork 8 automatically resets under the action of the double fork return spring 16 and stops moving after contacting the double fork limit shaft 17. The first swing arm 7 resets against the left fork 8 under the tension of the first return tension spring 15. After the ballast block is reinstalled in the scissor-shaped blade position, the electromagnet 2 is energized. Then, the first lever 6 is manually rotated clockwise so that its front end contacts the first swing arm 7 and re-engages. At the same time, the rear end of the first lever 6 is attracted to the electromagnet 2, restoring the self-locking state and locking the left fork 8, waiting for the next ballast release command.

[0034] 3. When the electric cylinder 3 receives the load-drop command, the electric cylinder 3 is energized. At this time, the second lever 11 begins to rotate counterclockwise around the fourth hinge 183 under the thrust of the electric cylinder 3. The self-locking state of the electric cylinder 3 is released, the torque balance is disrupted, and the second rocker arm 10 can rotate clockwise around the third hinge 184. The right fork 9 is no longer blocked by the second rocker arm 10. Under the gravity of the ballast block, the right fork 9 expands outward, the scissor-shaped blade opens, and the ballast block automatically disengages from the load-drop mechanism under the drive of other devices, completing the load-drop action. After the ballast release action is completed, the right fork 9 automatically resets under the action of the double fork return spring 16 and stops moving after contacting the double fork limit shaft 17. The second swing arm 10 resets against the right fork 9 under the pulling force of the second return tension spring 19. After the ballast block is reinstalled in the scissor-shaped blade position, the electric cylinder 3 is energized and retracts. The second lever 11 rotates clockwise so that its front end contacts the second swing arm 10 and re-engages. At this time, the ballast release mechanism fully locks the ballast block and waits for the next ballast release command.

[0035] Fourth, when electromagnet 2 and electric cylinder 3 receive the load release command at the same time, the load release actions of process two and process three above are carried out simultaneously. The actions of electromagnet 2 and electric cylinder 3 are redundant. The load release action can be completed in either process to ensure the reliability of load release.

Claims

1. A ballast jettisoning mechanism for a large ballast block of a submersible, characterized in that: The assembly includes a mounting base (1), a left fork (8), a right fork (9), a first lever (6), a first rocker arm (7), a second lever (11), and a second rocker arm (10). The left fork (8) and the right fork (9) are located in the middle of the mounting base (1) and connected by a double-fork return spring (16). The first rocker arm (7) and the first lever (6) are located inside the A end of the mounting base (1). The mounting base (1) has a first hinge seat (181) on one side and a second hinge seat (182) on the other side. The rear end of the first rocker arm (7) is hinged to the first hinge seat (181), and the front end engages with the front end of the first lever (6). The first rocker arm (7) abuts against the left fork (8). The middle part of the first lever (6) is hinged to the second hinge seat (182), and the rear end is connected to the first drive mechanism located on the mounting base (1). Driven by a moving device, a first return tension spring (15) is provided between the front end of the first swing rod (7) and the second hinge seat (182). The second swing rod (10) and the second lever (11) are located inside the B end of the mounting base (1). The mounting base (1) has a third hinge seat (184) on one side and a fourth hinge seat (183) on the other side. The rear end of the second swing rod (10) is hinged to the third hinge seat (184), and the front end is engaged with the front end of the second lever (11). The second swing rod (10) abuts against the right fork (9). The middle part of the second lever (11) is hinged to the fourth hinge seat (183), and the rear end is driven to move by a second driving device provided on the mounting base (1). A second return tension spring (19) is provided between the front end of the second swing rod (10) and the fourth hinge seat (183).

2. The jettisoning mechanism for large ballast blocks of a submersible according to claim 1, characterized in that: The first driving device includes an electromagnet (2) and a spring (20), wherein one end of the spring (20) is fixed to the rear end of the first lever (6), and the other end abuts against the corresponding side wall of the mounting base (1). The rear end of the first lever (6) is attracted and compressed by the electromagnet (2).

3. The jettisoning mechanism for large ballast blocks of a submersible according to claim 2, characterized in that: The front end of the first lever (6) is connected to the corresponding side wall of the mounting base (1) via a lever return tension spring (14).

4. The jettisoning mechanism for large ballast blocks of a submersible according to claim 1, characterized in that: The second driving device is an electric cylinder (3), and the output shaft of the electric cylinder (3) is hinged to the rear end of the second lever (11).

5. The jettisoning mechanism for large ballast blocks of a submersible according to claim 4, characterized in that: The mounting base (1) is provided with an electric cylinder bracket (13) on the outside, and the electric cylinder (3) is mounted on the electric cylinder bracket (13).

6. The jettisoning mechanism for large ballast blocks of a submersible according to claim 1, characterized in that: The mounting base (1) is provided with a main shaft (12), and the left fork (8) and right fork (9) are symmetrically arranged and rotatably mounted on the main shaft (12).

7. The jettisoning mechanism for large ballast blocks of a submersible according to claim 1, characterized in that: The mounting base (1) is provided with a double fork limiting shaft (17), and the left fork (8) and right fork (9) stop in contact with the double fork limiting shaft (17) when driven to reset by the double fork reset spring (16).

8. The jettisoning mechanism for large ballast blocks of a submersible according to claim 1, characterized in that: The mounting base (1) has a compensator (4) on one side and a branch block (5) on the other side. The electric cylinder (3) is connected to the branch block (5) through the first pipeline (21), the electromagnet (2) is connected to the branch block (5) through the second pipeline (22), and the branch block (5) is connected to the compensator (4) through the third pipeline.

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