A rocket-assisted shore attack device for retrofit use with a straight-running torpedo

Abstract

The application discloses a rocket-assisted shore attacking device for modified use of a straight-running torpedo, comprising a straight-running torpedo, stabilizing wings, a booster, a fuel bin, a release device support, a torpedo clamping plate and a rotating shaft, and a pulley cover; the straight-running torpedo is clamped and fixed in the release device support through the torpedo clamping plate, and the tail of the support is coaxially connected with the fuel bin and the booster in sequence; four groups of stabilizing wings are fixed and arranged on the periphery of the release device support and connected with the fuel bin; the torpedo clamping plate is opened and closed through the rotating shaft, and the separation of the booster and the straight-running torpedo can be completed at a predetermined position; and the device is adapted to a rotating torpedo launching tube with a rotating base and a tube latch. The device can realize the modified use of inventory equipment without changing the straight-running torpedo body, greatly improves the shooting range of the old inventory straight-running torpedo, realizes the near-surface destruction capability of the straight-running torpedo to the shore side anti-landing reinforced concrete obstacles by using the explosion power, opens a road for subsequent large-scale landing, is compatible with the existing launching device, and has low modification cost.

Description

Technical Field

[0001] This invention relates to the field of underwater weaponry technology, and in particular to a rocket booster device that can be modified and utilized from obsolete straight-running torpedoes. Background Technology

[0002] Straight-running torpedoes are traditional underwater attack weapons with large deployment scale, mature structure, and high reliability, and are widely used in various types of submarines and surface ships. However, with the rapid development of underwater anti-torpedo technology, traditional straight-running torpedoes have exposed their core defects, such as short range, low speed, fixed trajectory, and weak penetration capability. A large number of existing straight-running torpedoes that have reached the end of their service life are facing retirement and scrapping, resulting in a huge waste of equipment resources and funds.

[0003] Existing upgrade solutions for straight-running torpedoes mostly involve extensive modifications to the torpedo's propulsion and guidance systems. These modifications are not only complex, costly, and time-consuming, but also compromise the reliability of the original torpedo structure. Furthermore, the modified torpedoes are not fully compatible with existing standard torpedo launchers, requiring simultaneous modifications to the launch platform, making widespread application extremely difficult. Current rocket-assisted torpedoes are mostly newly designed equipment, unable to directly meet the reuse requirements of existing straight-running torpedoes. Their high R&D and manufacturing costs make it difficult to revitalize existing equipment. Additionally, most integrated booster torpedoes have a separate stabilization structure and propulsion stage design, resulting in insufficient structural rigidity at high speeds, poor ballistic stability, and an inability to achieve clean separation between the boost and attack stages. This leads to noticeable ballistic characteristics, making them easily identifiable by enemy interception systems and limiting their penetration capabilities.

[0004] Therefore, developing a device that requires no modification to the straight-running torpedo itself, is compatible with existing rotary torpedo launchers, possesses high structural rigidity and good ballistic stability, can significantly improve torpedo range and penetration capability, and enables the efficient retrofitting and utilization of existing straight-running torpedoes, has extremely high military value and economic benefits. This invention allows for the retrofitting and utilization of existing equipment without modifying the straight-running torpedo itself, significantly increasing the range of older, existing straight-running torpedoes and enhancing their ability to penetrate reinforced concrete obstacles on the coast. It utilizes the explosive force of its underwater blast to destroy enemy beach obstacles, paving the way for subsequent large-scale amphibious landings. Summary of the Invention

[0005] In order to overcome the problems in the prior art, the present invention provides a rocket booster device that can be modified and utilized from obsolete straight-running torpedoes.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A rocket-assisted shore-attack device modified from a straight-running torpedo includes: a straight-running torpedo, stabilizing fins, a booster, a fuel tank, a release device bracket, a torpedo clamp, a pivot, a pulley cover fitted around the outer end of the straight-running torpedo, and a torpedo launch tube adapted for launch; the outer wall of the straight-running torpedo body is provided with a straight-running torpedo stabilizing fin, and the tail is provided with a straight-running torpedo propulsion propeller; the pulley cover is tightly fitted onto the straight-running torpedo; multiple sets of pulleys are welded inside the track bars; eight sets of anti-slip blocks are installed on the pulley cover bracket; the front end of the anti-slip cover has a pulley cover front cover welded to four track bars; the release device... The device support is a cylindrical support structure, with the straight-running torpedo coaxially nested within the inner cavity of the release device support. The torpedo clamp is hinged to the inner wall of the release device support via a pivot, and clamps the torpedo torpedo to the outer wall, thus achieving relative fixation between the straight-running torpedo and the release device support. The tail of the release device support is coaxially and fixedly connected to the fuel tank and the booster in sequence. The four stabilizing fins are fixedly arranged on the periphery of the release device support and connected to the fuel tank. The torpedo launch tube is a rotary launch tube with a rotating base at the bottom and a tube latch at the tail.

[0007] Preferably, at least two sets of torpedo clamps are provided, symmetrically arranged along the inner wall of the release device bracket. Each set of torpedo clamps is provided with a corresponding pivot. The torpedo clamps can be deflected outward around the pivot to release the clamping constraint on the straight-running torpedo.

[0008] Preferably, the rotating shaft is provided with a reset torsion spring and an electronically controlled locking component. The electronically controlled locking component is used to lock the torpedo clamping plate in a clamping state during navigation and to unlock when a preset separation position is reached. The reset torsion spring drives the torpedo clamping plate to open outward.

[0009] Preferably, the booster is an underwater solid rocket booster, the fuel tank is filled with a sufficient amount of propellant to propel the straight-running torpedo at least 200 kilometers, and the discharge end of the fuel tank is sealed and connected to the combustion chamber of the booster.

[0010] Preferably, the stabilizing wing is a long, streamlined hydrodynamic wing surface. Four sets of stabilizing wings are evenly spaced along the periphery of the release device support. The rear end of the stabilizing wing is fixedly connected to the front outer wall of the fuel tank. The wing body extends forward along the axial direction and surrounds the periphery of the release device support to counteract the roll and yaw moments during navigation and maintain ballistic stability.

[0011] Preferably, the inner side of the release device bracket has an axial guide groove adapted to the stabilizing fins of the straight-going torpedo. When the straight-going torpedoes are nested, a pair of symmetrical stabilizing fins of the straight-going torpedo are embedded in the axial guide groove to achieve guidance during separation.

[0012] Preferably, the fuel tank has a built-in guidance control module, which is electrically connected to the ignition end of the booster and the electronically controlled locking component of the torpedo clamp, and is used to control the working state of the booster and trigger the unlocking and separation action of the torpedo clamp.

[0013] Preferably, the rotating base of the torpedo tube can drive the tube to achieve 360° horizontal rotation, and the tube latch is a pressure-resistant and watertight structure used to seal the tail of the tube before launch.

[0014] Preferably, the maximum outer diameter of the stabilizer wing, release device bracket, fuel tank, and booster is the same and is adapted to the inner diameter of the torpedo tube.

[0015] Preferably, the front end of the track bar is arc-shaped, and multiple sets of pulleys are fixed inside. The front end of the track bar is welded to the front cover of the pulley cover. The size of the pulley cover is exactly the same as the size of the straight-running torpedo. The track bar, pulleys, pulley cover bracket, and pulley cover front cover are all made of aluminum alloy. The surface of the anti-slip block is covered with silicone rubber.

[0016] The beneficial effects of this invention are mainly reflected in the following aspects: (1) Solve the problems of difficulty in reusing existing straight-running torpedoes and high modification costs: This invention does not require any structural modifications to the straight-running torpedo body. It can be adapted by using an external rocket booster and a separable clamping mechanism, enabling a large number of retired or soon-to-be-retired straight-running torpedoes to regain combat capability, avoiding complex and expensive deep modifications, and greatly reducing the cost of equipment reuse.

[0017] (2) Solve the problem of short range and weak penetration capability of traditional straight-running torpedoes: By connecting the fuel tank and underwater solid rocket booster coaxially at the tail, the straight-running torpedo is provided with continuous and strong thrust, which greatly increases its range (up to 200 kilometers or more). At the same time, the high-speed rocket booster makes the trajectory difficult to predict and intercept, significantly enhancing the penetration capability against beach targets.

[0018] (3) Solve the problem that existing rocket-assisted torpedoes are incompatible with existing torpedoes and have unstable trajectories: This device adopts a cage-like stabilization structure formed by the circumferentially distributed and forward-extending long strip-shaped stabilizing fins, which effectively counteracts the roll and yaw moments generated by rocket boosting and ensures ballistic stability during high-speed navigation; at the same time, the maximum outer diameter of the device is fully compatible with the inner diameter of the existing rotary torpedo launch tube, and there is no need to modify the launch platform, so it can be directly loaded and launched.

[0019] (4) Solve the problem of incomplete separation between the boost phase and the attack phase and poor damage effect near the water surface: Through the torpedo clamp controlled by the electronic locking device and the reset torsion spring, the boost device and the straight-running torpedo can be cleanly separated at the predetermined ballistic position, avoiding the ballistic characteristics being identified by the enemy; after separation, the torpedo travels at a depth of 0-1 meter below the water surface and explodes near the water surface, giving full play to its underwater explosive power, efficiently destroying the coastal anti-landing reinforced concrete obstacles, and opening up a passage for landing operations. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 Image showing rocket booster and torpedo separation during straight-running flight; Figure 3 A structural diagram of a rocket booster device; Figure 4 Side view of the rocket booster; Figure 5 Side view of the rocket booster; Figure 6 A schematic diagram illustrating the launch of this invention by a rotary torpedo launching device; Figure 7 This is a schematic diagram of the pulley cover structure; In the diagram: 1. Straight-running torpedo; 2. Stabilizing fin; 3. Booster; 4. Fuel tank; 5. Release device bracket; 6. Torpedo clamp; 7. Rotary shaft; 8. Torpedo launch tube; 11. Straight-running torpedo stabilizing fin; 12. Straight-running torpedo propulsion propeller; 13. Track bar; 14. Pulley; 15. Pulley cover bracket; 16. Pulley cover front cover; 17. Anti-slip block; 51. Guide groove; 81. Rotating base; 82. Tube latch. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 As shown in Figures 1 to 6, the rocket-assisted shore attack device modified from a straight-running torpedo disclosed in this embodiment has a core structure including a straight-running torpedo 1, a stabilizing wing 2, a booster 3, a fuel tank 4, a release device bracket 5, a torpedo clamp 6, a rotating shaft 7, and a rotary torpedo launch tube 8 adapted for launch.

[0024] Among them, the straight-running torpedo 1 is an existing or retired straight-running torpedo. Its outer wall is equipped with a straight-running torpedo stabilizing fin 11 and its tail is equipped with a straight-running torpedo propulsion propeller 12. In this embodiment, no modification is required to the main structure of the straight-running torpedo 1 to complete the adaptation and installation, and realize the modification and utilization.

[0025] The release device bracket 5 is a cylindrical metal bracket structure, the inner cavity of which is adapted to the outer diameter of the straight-running torpedo 1. The straight-running torpedo 1 is coaxially nested in the inner cavity of the release device bracket 5. The inner wall of the release device bracket 5 is provided with an axial guide groove 51 adapted to the stabilizing fins 11 of the straight-running torpedo. When the straight-running torpedo 1 is nested and installed, any pair of symmetrical stabilizing fins 11 of the straight-running torpedo are embedded in the axial guide groove 51. This achieves circumferential limitation of the straight-running torpedo 1 to prevent circumferential rotation during navigation, and provides axial guidance when the straight-running torpedo 1 separates, ensuring the accuracy of the separation trajectory.

[0026] The torpedo clamp 6 is hinged to the inner wall of the release device bracket 5 via a pivot 7. In this embodiment, four sets of torpedo clamps 6 are provided, symmetrically arranged at equal intervals along the circumference of the inner wall of the release device bracket 5. Each set of torpedo clamps 6 is correspondingly provided with a pivot 7. The clamping surface of the torpedo clamp 6 is adapted to the curvature of the outer wall of the straight-running torpedo 1, and can be tightly clamped to the outer wall of the straight-running torpedo 1, so as to achieve relative fixation between the straight-running torpedo 1 and the release device bracket 5, avoid axial movement of the straight-running torpedo during launch and navigation, and ensure ballistic stability.

[0027] The rotating shaft 7 is equipped with a reset torsion spring and an electrically controlled locking device. The electrically controlled locking device adopts an electromagnetic locking pin structure. During the navigation phase of the device, the electrically controlled locking device is in a locked state, fixing the torpedo clamp 6 in the clamping position to ensure stable clamping of the straight-running torpedo 1. When the device reaches the preset separation position, the electrically controlled locking device receives an unlocking signal and retracts, releasing the constraint on the torpedo clamp 6. The reset torsion spring drives the torpedo clamp 6 to deflect outward around the rotating shaft 7 and open, completely releasing the clamping constraint on the straight-running torpedo 1, providing conditions for the separation and release of the straight-running torpedo 1. The separation state is shown in Figure 2.

[0028] The tail of the release device bracket 5 is coaxially and fixedly connected to the fuel tank 4 and the booster 3. The three are fixedly connected by flange bolts to ensure connection strength and underwater pressure resistance and watertightness. In this embodiment, the booster 3 is an underwater solid rocket booster. The fuel tank 4 is filled with solid composite propellant adapted to the high-pressure underwater environment. The discharge end of the fuel tank 4 is sealed and connected to the combustion chamber of the booster 3, providing the booster 3 with a continuous propellant and providing the main thrust for high-speed navigation of the entire device, greatly improving the range and speed of the device.

[0029] The stabilizing wing 2 is a long, streamlined hydrodynamic surface, with four sets evenly spaced at 90° intervals around the periphery of the release device support 5. The rear end of the stabilizing wing 2 is fixedly connected to the front outer wall of the fuel tank 4, and the entire wing extends forward axially, surrounding the periphery of the release device support 5 to form a cage-like stabilizing structure. Compared with the traditional short-wing surface design, this structure has higher structural rigidity and a longer effective wingspan, providing a larger and more stable righting moment during the device's high-speed flight. This perfectly counteracts the roll, yaw, and pitch moments generated by the rocket booster, ensuring trajectory stability throughout the device's flight and significantly improving attack accuracy.

[0030] The fuel tank 4 also houses a built-in guidance and control module. This module is pressure-resistant and watertight, and includes an inertial navigation unit and a wireless signal receiving unit. These are electrically connected to the ignition point of the booster 3, the electronically controlled locking mechanism of the torpedo clamp 6, and the unlocking point of the fairing, respectively. The guidance and control module receives target parameters and control commands from the ship's combat platform, controls the booster 3's operating status in real time, and adjusts the device's flight speed. When the device reaches the preset attack distance from the target, the torpedo clamp 6 unlocks, releasing the straight-running torpedo 1.

[0031] The torpedo tube 8 adapted to this device is a standard gyroscopic torpedo tube for ships, with a rotating base 81 at its bottom that can drive the tube to rotate 360° horizontally to adjust the launch azimuth. The stern of the tube is equipped with a latch 82, which is a pressure-resistant and watertight structure used to seal the stern of the tube before launch, ensuring launch pressure. The launch state is as follows: Figure 6 As shown. The maximum outer diameter of the stabilizer wing 2, release device bracket 5, fuel tank 4, and booster 3 of this device is the same, and it is completely compatible with the inner diameter of the torpedo launch tube 8, so that loading and launching can be completed directly without any modification to the launch platform.

[0032] The track bar 13 is made of U-shaped aluminum alloy. Multiple sets of pulleys 14 are fixed inside the cavity of the track bar 13. The pulleys 14 are also made of aluminum alloy and have undergone anti-corrosion and wear-resistant treatment. The multiple sets of pulleys 14 are arranged at equal intervals along the axial direction of the track bar 13. The pulley cover bracket 15 has silicone rubber-covered anti-slip blocks 17 installed inside. These anti-slip blocks ensure that the pulley cover and the torpedo 1 are relatively stationary when the pulley cover is fitted onto it. The front cover 16 of the pulley cover helps to firmly fix the anti-slip cover onto the torpedo during forward sliding.

[0033] The complete workflow of this embodiment is as follows: Loading preparation: The stock of straight-running torpedo 1 is coaxially nested into the inner cavity of the release device bracket 5, the straight-running torpedo stabilizing fin 11 is embedded in the axial guide groove 51, and the straight-running torpedo 1 is clamped and fixed by the torpedo clamp 6 to complete the assembly of the booster device; the assembled device is loaded into the launch tube through the loading port of the rotary torpedo launch tube 8, the tube latch 82 is closed, and the launch preparation is completed.

[0034] Launch and navigation: The launch azimuth angle of the torpedo tube 8 is adjusted by rotating the base 81. After aligning with the target direction, the launch operation is performed, and the torpedo tube 8 launches the device out of the tube. After exiting the tube, the booster 3 is ignited and started. The fuel tank 4 provides the booster 3 with the propellant, providing high-speed thrust to the device. The cage-like stabilization structure formed by the four sets of stabilizing fins 2 maintains the stability of the device's flight attitude. The guidance and control module controls the device to fly at high speed towards the target according to the preset trajectory.

[0035] Separation Attack: When the device flies to the preset attack distance from the island, the guidance control module sends an unlocking signal, the electronically controlled locking component of the torpedo clamp 6 unlocks, and the reset torsion spring drives the torpedo clamp 6 to open outward, releasing the clamping constraint on the straight-running torpedo 1; the straight-running torpedo 1 falls into the water, with the preset travel depth of the straight-running torpedo 1 being 0-1 meters below the water surface (to maximize the explosive power of the straight-running torpedo); the straight-running torpedo 1 starts its own propulsion system, and the straight-running torpedo propulsion propeller 12 works. Since the shallows are not smooth surfaces, the pulley cover can be used at this time (the pulley cover can assist the straight-running torpedo in moving forward in the shallows). At a depth of 0-1 meters above the water surface, it attacks the island's shore obstacles and explodes near the water surface to destroy the anti-landing reinforced concrete obstacles.

Claims

1. A rocket-assisted shore-attack device modified from a straight-running torpedo, characterized in that, include: The torpedo consists of a straight-running torpedo (1), a stabilizing fin (2), a booster (3), a fuel tank (4), a release device bracket (5), a torpedo clamp (6), a pivot (7), a pulley cover fitted around the outer end of the straight-running torpedo, and a torpedo launch tube (8) adapted for launch. The outer wall of the torpedo (1) is provided with a straight-running torpedo stabilizing fin (11), and the tail is provided with a straight-running torpedo propulsion propeller (12). The pulley cover is tightly fitted onto the straight-running torpedo. Multiple sets of pulleys (14) are welded inside the track bar (13). Eight sets of anti-slip blocks (17) are installed on the pulley cover bracket (15). The front end of the pulley cover has a pulley cover front cover (16) welded to the four track bars (13). The release device bracket (5) is a cylindrical support. The frame structure is as follows: the straight-running torpedo (1) is coaxially nested in the inner cavity of the release device bracket (5); the torpedo clamp (6) is hinged to the inner wall of the release device bracket (5) through a rotating shaft (7), and the torpedo clamp (6) is clamped to the outer wall of the straight-running torpedo (1) to achieve relative fixation between the straight-running torpedo (1) and the release device bracket (5); the tail of the release device bracket (5) is coaxially fixedly connected to the fuel tank (4) and the booster (3); the four stabilizing fins (2) are fixedly arranged on the periphery of the release device bracket (5) and connected to the fuel tank (4); the torpedo launching tube (8) is a rotary launching tube with a rotating base (81) at the bottom and a tube latch (82) at the tail.

2. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, At least two sets of torpedo clamps (6) are provided, symmetrically arranged along the inner wall of the release device bracket (5). Each set of torpedo clamps (6) is provided with a corresponding pivot (7). The torpedo clamps (6) can be deflected outward around the pivot (7) to release the clamping constraint on the straight-running torpedo (1).

3. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 2, characterized in that, The rotating shaft (7) is provided with a reset torsion spring and an electronically controlled locking component. The electronically controlled locking component is used to lock the torpedo clamp (6) in the clamping state during the navigation phase and unlock when the preset separation position is reached. The reset torsion spring drives the torpedo clamp (6) to open outward.

4. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The booster (3) is an underwater solid rocket booster. The fuel tank (4) is filled with propellant, which can propel the straight-running torpedo at least 200 kilometers. The discharge end of the fuel tank (4) is sealed and connected to the combustion chamber of the booster (3).

5. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The stabilizer (2) is a long, streamlined hydrodynamic wing surface. Four sets of stabilizers (2) are evenly distributed at equal intervals along the periphery of the release device support (5). The rear end of the stabilizer (2) is fixedly connected to the front outer wall of the fuel tank (4). The wing body extends forward along the axial direction and surrounds the periphery of the release device support (5) to counteract the roll and yaw moments during navigation and maintain ballistic stability.

6. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The inner side of the release device bracket (5) is adapted to the axial guide groove (51) of the straight-going torpedo stabilizing fin (11). When the straight-going torpedo (1) is nested, a pair of symmetrical stabilizing fins (11) of the straight-going torpedo are embedded in the axial guide groove (51) to achieve guidance during separation.

7. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 3, characterized in that, The fuel tank (4) is equipped with a guidance control module, which is electrically connected to the ignition end of the booster (3) and the electronically controlled locking component of the torpedo clamp (6) to control the working state of the booster and trigger the unlocking and separation action of the torpedo clamp.

8. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The rotating base (81) of the torpedo launching tube (8) can drive the launching tube to achieve 360° horizontal rotation, and the tube latch (82) is a pressure-resistant and watertight structure used to seal the tail of the launching tube before launch.

9. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The maximum outer diameter of the stabilizer (2), release device bracket (5), fuel tank (4), and booster (3) is the same and is adapted to the inner diameter of the torpedo tube (8).

10. The rocket-assisted shore-attack device modified from a straight-running torpedo according to claim 1, characterized in that, The front end of the track bar (13) is arc-shaped, and multiple sets of pulleys (14) are fixed inside. The front end of the track bar (13) is welded to the pulley cover front cover (16). The size of the pulley cover is exactly the same as the size of the straight-running torpedo (1). The track bar (13), pulleys (14), pulley cover bracket (15), and pulley cover front cover (16) are all made of aluminum alloy. The surface of the anti-slip block (17) is covered with silicone rubber.

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