Marine rocket recovery device and use method

Abstract

The invention relates to an offshore rocket recovery device which comprises a rocket body, a frame structure, a gas injection device, a base and a locking device. A frame structure is arranged on the base, the rocket body falls into the frame structure and falls on the base, a plurality of gas injection devices are arranged on the base and the frame structure, and a plurality of locking devices are arranged on the periphery of the frame structure. In the process of vertically recovering the rocket by the offshore landing platform, the position of the rocket body is identified, the landing load of the rocket body is buffered and the rocket body is locked in the state that the rocket is completely extinguished, and the requirements of buffering, capturing, supporting and locking in the process of vertically recovering the carrier rocket are met.

Description

Technical Field

[0001] The present invention relates to the field of design of offshore mobile platforms / vertical recovery rockets, and particularly relates to an offshore rocket recovery device and a usage method thereof. Background Art

[0002] In recent years, reusable rockets have developed rapidly and gradually shown great advantages in terms of launch efficiency and cost. Vertical recovery of launch vehicles on offshore platforms is the most advanced and cost-effective way of recovering rockets so far.

[0003] After the launch vehicle separates from the spacecraft, it undergoes a series of attitude adjustments and decelerations, arrives at the predetermined recovery sea area, and vertically lands on the offshore recovery platform. After the rocket lands, it needs to be kept stable, and post-treatment work such as propellant discharge, gas cylinder deflation, and engine tank temperature recovery is carried out during the process of the recovery platform returning to port.

[0004] Although the rocket experiences a long deceleration process before landing, the instantaneous landing speed is still relatively large, and a buffer device is needed to absorb the remaining kinetic energy of the rocket body. When carrying out the post-treatment work after landing, it is necessary to keep the rocket body relatively stable relative to the offshore landing platform.

[0005] Currently, the form of installing landing legs on the rocket body is widely used in the field of vertical recovery rockets.

[0006] The above method requires attaching landing legs that can withstand the acceleration during rocket landing to the rocket body and keeping them stable after landing. It has high requirements for structural strength and buffering performance, which will increase the structural weight of the rocket, resulting in an increased demand for fuel and a reduction in rocket launch efficiency. In addition, during the process of the offshore platform returning to port, there are usually large winds and waves, and the landing leg device is located at the tail of the rocket body, which is not conducive to withstanding the overturning moment. Summary of the Invention

[0007] Aiming at the problems of the existing recovery method that requires attaching landing legs that can withstand the acceleration during rocket landing to the rocket body and keeping them stable after landing, which has high requirements for structural strength and buffering performance, increases the structural weight of the rocket, leads to an increased demand for fuel, and reduces rocket launch efficiency; in addition, during the process of the offshore platform returning to port, there are usually large winds and waves, and the landing leg device is located at the tail of the rocket body, which is not conducive to withstanding the overturning moment, an offshore rocket recovery device and a usage method thereof are proposed.

[0008] The technical solution of the present invention is: an offshore rocket recovery device, including a rocket body, a frame structure, a gas injection device, a base, and a locking device; a frame structure is provided on the base, the rocket body falls into the frame structure and lands on the base, a plurality of gas injection devices are provided on the base and the frame structure, and a plurality of locking devices are provided around the frame structure.

[0009] Preferably, the plurality of gas injection devices on the base are evenly arranged around the position where the rocket body falls.

[0010] Preferably, the frame structure is a circular frame, and the frame structure is divided into multiple layers by a transverse frame.

[0011] Preferably, the gas injection device is arranged on the transverse frame and the vertical frame of the frame structure.

[0012] Preferably, the nozzle of the gas injection device is directed toward the rocket body, and the nozzle is tilted upward to maintain a certain angle with the horizontal plane.

[0013] Preferably, the locking device comprises a supporting platform, a mechanical arm, and an arc-shaped hoop; the top surface of the supporting platform is connected to the mechanical arm, and one end of the mechanical arm away from the supporting platform is connected to the arc-shaped hoop.

[0014] Preferably, the shape of the end of the arc-shaped hoop fits the tail of the rocket.

[0015] Preferably, a hinge is provided on the top surface of the support platform, and the hinge is hinged to the mechanical arm.

[0016] Preferably, the bottom surface of the support platform is provided with wheels.

[0017] A method for using a rocket recovery device at sea, comprising the following steps:

[0018] S1. After a series of deceleration and attitude adjustments, the rocket body maneuvers to the top of the circular frame structure, shuts down all engines and enters the flameout state;

[0019] S2. After the rocket body is extinguished, the gas injection device starts to spray high-pressure gas to adjust the rocket body's attitude until the rocket body slowly and vertically lands on the base;

[0020] S3. The locking device moves to the appropriate position and locks the tail of the rocket body.

[0021] The beneficial effects of the present invention are as follows: the present invention provides an offshore rocket recovery device, which identifies the position of the rocket body during the vertical recovery of the rocket on the offshore landing platform, buffers the landing load of the rocket body when the rocket is completely shut down, locks the rocket body, and meets the requirements of buffering, capturing, supporting and locking during the vertical recovery of the carrier rocket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the offshore rocket recovery device of the present invention;

[0023] Figure 2 This is a top view of the offshore rocket recovery device of the present invention.

[0024] In the figure, the component names corresponding to the respective reference numerals are as follows:

[0025] 1. Rocket body; 2. Frame structure; 3. Gas injection device; 4. Base; 5. Locking device; 51. Support platform; 511. Hinge; 512. Wheel; 52. Robot arm; 53. Arc-shaped hoop. Detailed implementation mode

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0027] Reference Figure 1 、 2 As shown in

[0028] and

[0029] shown, an embodiment of the present application discloses a sea recovery rocket device, including a rocket body 1, a frame structure 2, a gas injection device 3, a base 4, and a locking device 5; a frame structure 2 is provided on the base 4, the rocket body 1 falls into the frame structure 2 and lands on the base 4, and a plurality of gas injection devices 3 are provided on the base 4 and the frame structure 2, and a plurality of locking devices 5 are provided around the frame structure 2; the locking device 5 is used to lock the rocket body;

[0030] The plurality of gas injection devices 3 on the base 4 are uniformly arranged around the position where the rocket body 1 falls;

[0031] The frame structure 2 is a circular frame, and the frame structure 2 is divided into multiple layers by horizontal frames. In this actual example, it is divided into three layers, and a plurality of gas injection devices 3 are uniformly provided on each horizontal frame. Similarly, a plurality of gas injection devices 3 are uniformly provided on the vertical frames;

[0032] The nozzle direction of the gas injection device 3 points to the rocket body 1, and the nozzle is inclined upward at a certain angle with the horizontal plane. The gas injection device 3 ejects high-pressure gas to adjust the attitude of the rocket body until the rocket slowly lands vertically on the base 4;

[0033] The bottom surface of the support platform 51 is provided with wheels 512, and the support platform 51 moves through the wheels, so that it can move to the corresponding position according to the actual position of the rocket body;

[0034] The usage method applied to the sea-based rocket recovery device as described above is as follows:

[0035] S1. After a series of decelerations and attitude adjustments, the rocket body 1 maneuvers above the circular frame structure 2 and shuts down all engines to enter the flameout state;

[0036] S2. After the rocket body goes out of flame, the gas ejection device 3 starts to eject high-pressure gas to adjust the attitude of the rocket body 1 until the rocket body 1 slowly lands vertically on the base 4;

[0037] S3. The support platform 51 moves to a suitable position through the wheels 512; the robotic arm 52 rotates to the corresponding position by the hinge 511, and the arc-shaped hoop 53 locks the tail of the rocket body;

[0038] The beneficial effects are as follows: The present invention provides a sea-based rocket recovery device, which can identify the position of the rocket body during the vertical recovery of the rocket on the sea landing platform, buffer the landing load of the rocket body in the state of complete flameout of the rocket, and lock the rocket body, meeting the requirements of buffering, capturing, supporting and locking during the vertical recovery of the launch vehicle.

[0039] It should be noted that the orientation or positional relationship indicated by the above terms "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. The terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. The meaning of "a plurality" is two or more. "Installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0040] The above are only the preferred embodiments of the present invention, and do not impose any formal or substantial limitations on the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the present invention, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as within the protection scope of the present invention. Those skilled in the art, without departing from the spirit and scope of the present invention, when making some equivalent changes, modifications and evolutions using the technical content disclosed above, are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the substantial technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A device for recovering rockets at sea, characterized in that: The invention comprises a rocket body (1), a frame structure (2), a gas injection device (3), a base (4), and a locking device (5); the base (4) is provided with a frame structure (2); the rocket body (1) falls into the frame structure (2) and falls on the base (4); a plurality of gas injection devices (3) are provided on the base (4) and the frame structure (2); and a plurality of locking devices (5) are provided around the frame structure (2).

2. The offshore rocket recovery device according to claim 1, characterized in that: A plurality of gas injection devices (3) on the base (4) are evenly arranged around the position where the rocket body (1) falls.

3. The offshore rocket recovery device according to claim 1, characterized in that: The frame structure (2) is a circular frame, and the frame structure (2) is divided into multiple layers by a transverse frame.

4. The offshore rocket recovery device according to claim 3, characterized in that: The gas injection device (3) is arranged on the transverse frame and the vertical frame of the frame structure (2).

5. The offshore rocket recovery device according to claim 1, characterized in that: The nozzle of the gas injection device (3) is directed toward the rocket body (1), and the nozzle is tilted upwards to maintain a certain angle with the horizontal plane.

6. The offshore rocket recovery device according to claim 1, characterized in that: The locking device (5) comprises a supporting platform (51), a mechanical arm (52), and an arc-shaped hoop (53); the top surface of the supporting platform (51) is connected to the mechanical arm (52), and one end of the mechanical arm (52) away from the supporting platform (51) is connected to the arc-shaped hoop (53).

7. The offshore rocket recovery device according to claim 6, characterized in that: The shape of the end of the arc-shaped hoop (53) fits the tail of the rocket.

8. The offshore rocket recovery device according to claim 6, characterized in that: The top surface of the support platform (51) is provided with a hinge (511), and the hinge (511) is hinged to the mechanical arm (52).

9. The offshore rocket recovery device according to claim 6, characterized in that: The bottom surface of the supporting platform (51) is provided with wheels (512).

10. A method for using the offshore rocket recovery device as claimed in any one of claims 1 to 9, characterized in that: Here are the steps: S1. After a series of deceleration and attitude adjustments, the rocket body (1) maneuvers to the top of the circular frame structure (2), and shuts down all engines to enter a flameout state; S2, after the rocket body is extinguished, the gas injection device (3) starts to inject high-pressure gas to adjust the posture of the rocket body (1) until the rocket body (1) slowly and vertically lands on the base (4); S3, the locking device (5) moves to a suitable position and locks the tail of the rocket body.

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