Dynamic stabilizing device for propellant filling in offshore launching of liquid rocket

Abstract

The invention belongs to the technical field of liquid rockets, and particularly relates to a dynamic stabilizing device for propellant filling during marine launching of a liquid rocket, which comprises a storage part, a collection mechanism, a damping mechanism and an auxiliary mechanism, the storage part comprises a storage tank and a sealing plate; the sealing plate is detachably mounted at the upper end of the storage tank; the collecting mechanism comprises a buoyancy plate, a connecting cylinder and a sliding rod, the bottom of the connecting cylinder is fixedly connected with the upper end face of the buoyancy plate, and the sliding rod is slidably arranged in an inner cavity of the connecting cylinder; the damping mechanism comprises a mounting frame, two magnetic blocks and a transmission plate, the transmission plate is a metal conductor plate, the mounting frame is rotatably mounted on the bottom surface of the closing plate, the two magnetic blocks are fixedly mounted on the outer wall of the mounting frame, and the magnetic poles of the ends, close to each other, of the two magnetic blocks are opposite; the fluctuation energy is absorbed through the change of buoyancy, so that the liquid level shaking amplitude is reduced, the liquid level shaking frequency is prevented from being the same as the shaking frequency of the storage tank, and the effects of damping and improving stability are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid rockets, in particular to a dynamic stabilization device for liquid rockets to be launched at sea and filled with propellant. Background Art

[0002] With the increasing carrying capacity of launch vehicles, the service life of satellites and the complexity of deep space exploration missions, the proportion of liquid propellant in the total mass of spacecraft has also increased. However, the fluctuation of liquid propellant significantly affects the motion stability of spacecraft and the reliability of attitude and orbit control systems.

[0003] For example, the invention patent with the publication number CN116238722A discloses a sloshing dynamic stabilization device for filling propellants for launching liquid rockets at sea, including a spherical tank for storing propellants, the upper and lower ends of the spherical tank are provided with inlet and outlet pipes equipped with valves, the middle outer surface of the spherical tank is provided with a ring adapted to the outer surface of the spherical tank, the outer surface of the ring is fixedly provided with outwardly supporting legs, and the inner wall of the ring is provided with a ball connected to the outer surface of the spherical tank in a rolling manner. This technology can place the spherical tank filled with propellants on the supporting legs, and can avoid the problem that the spherical tank will slosh with the ship after being directly installed on the ship. By setting up an arc-shaped buffer mechanism, on the one hand, it can prevent the spherical tank from sloshing suddenly, and on the other hand, it can prevent the spherical tank from sloshing too much, and on the other hand, it can prevent the spherical tank from sloshing too much when it suddenly returns to its position, causing the propellant to slosh violently.

[0004] Although the above technology uses external support to prevent the spherical tank from shaking, when the ship is sailing at sea, it will not only cause the spherical tank to shake, but also cause the liquid in the spherical tank to shake. When the frequency of the liquid shaking is the same as the frequency of the spherical tank shaking, it is very easy for the spherical tank to be affected by the shaking of the liquid surface, causing the spherical tank to tip over. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention provides a dynamic stabilization device for liquid rocket propellant filling during sea launch.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a dynamic stabilization device for liquid rocket sea launch and propellant filling, including a storage part, a collection mechanism, a damping mechanism and an auxiliary mechanism; The storage part includes a storage tank and a closing plate, and the closing plate is detachably mounted on the upper end of the storage tank; The collection mechanism includes a buoyancy plate, a connecting tube and a sliding rod, the bottom of the connecting tube is fixedly connected to the upper end surface of the buoyancy plate, and the sliding rod is slidably arranged in the inner cavity of the connecting tube; The damping mechanism includes a mounting frame, a magnetic block and a transmission plate. The transmission plate is a metal conductor plate. The mounting frame is rotatably mounted on the bottom surface of the closing plate. The magnetic block is fixedly mounted on the outer wall of the mounting frame. Two magnetic blocks are provided. The magnetic poles of the two magnetic blocks that are close to each other are opposite. One end of the slide bar is rotatably connected to the mounting frame, the transmission plate is located between the two magnetic blocks, and the transmission plate is fixedly connected to the slide bar; The auxiliary mechanism includes a storage cylinder and a control plate. The storage cylinder is filled with damping fluid. The control plate is slidably mounted on the inner wall of the storage cylinder, and a through hole is opened on the outer wall for the damping fluid to pass through. The sliding movement of the control panel is controlled by the sliding movement of the mounting frame.

[0007] Preferably, a transmission shaft is rotatably mounted on the inner wall of the storage cylinder, and a connecting shaft connected to the transmission shaft is fixedly mounted on the upper end surface of the mounting frame; A circulation groove is provided on the radial outer wall of the transmission shaft, the control plate is sleeved on the outer wall of the transmission shaft, a transmission ball is fixedly installed on the inner wall of the control plate, and the outer wall of the transmission ball is slidably fitted with the inner wall of the circulation groove; A transmission sheet is fixedly installed on the bottom surface of the buoyancy plate.

[0008] Preferably, a heat preservation cylinder is fixedly mounted on the upper end surface of the closing plate, and the heat preservation cylinder is sleeved on the outer wall of the storage cylinder; A temperature control cylinder is fixedly mounted on the upper end surface of the closing plate, a rotating shaft is rotatably mounted on the axial end of the temperature control cylinder, and a control sheet is fixedly mounted on the outer wall of the rotating shaft; The control sheet has a cold end and a hot end; The inner cavity of the temperature control cylinder is communicated with the inner cavity of the heat preservation cylinder.

[0009] Preferably, a support cylinder is fixedly mounted on the upper end surface of the closing plate, and a guide fan is fixedly mounted in the inner cavity of the support cylinder; One end of the support tube is fixedly connected to the outer wall of the heat preservation tube through a conduit, and the other end of the support tube is connected to the temperature control tube through a conduit.

[0010] Preferably, a guide plate is fixedly mounted on the radial outer wall of the storage cylinder, and the guide plate is spirally distributed on the inner wall of the heat preservation cylinder; A through hole for exhaust is provided at the upper end of the heat preservation tube; A heat conducting sheet is fixedly mounted on the outer wall of the control sheet, and a plurality of heat conducting sheets are evenly arranged along the outer wall of the control sheet.

[0011] Preferably, a control cylinder is fixedly mounted on the upper end surface of the closing plate, a control shaft is rotatably mounted on the inner wall of the control cylinder, one end of the control shaft extends to the outer wall of the control cylinder and is fixedly connected to the center position of the axial end of the rotating shaft.

[0012] Preferably, a control ring is elastically mounted in the inner cavity of the control cylinder, and the inner wall of the control ring is slidably fitted with the radial outer wall of the control shaft; A spiral groove is provided on the radial outer wall of the control shaft, a transmission block is fixedly mounted on the inner wall of the control ring, and the outer wall of the transmission block is slidably fitted with the inner wall of the spiral groove.

[0013] Preferably, a control plug is slidably mounted on the inner wall of the control cylinder, and the outer wall of the control plug is sealingly fitted with the inner wall of the control cylinder; A transmission cylinder is rotatably mounted on the axial end of the control plug, and the other end of the transmission cylinder is rotatably connected to the axial end of the control ring.

[0014] Preferably, a guide rod is fixedly mounted on the inner wall of the control cylinder, and the outer wall of the control ring is slidably fitted with the outer wall of the guide rod; A heat exchange plate is fixedly mounted on the outer wall of the control tube, one end of the heat exchange plate extends to the inner cavity of the control tube, and a plurality of heat exchange plates are arranged in a ring shape along the axis of the control tube.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention provides a buoyancy plate, which floats on the surface of the liquid. When the liquid shakes, the float moves accordingly, absorbs the fluctuation energy through the change of buoyancy, and then reduces the amplitude of the liquid surface shaking, and prevents the frequency of the liquid surface shaking from being the same as the frequency of the storage tank shaking, thereby achieving the effect of shock absorption and improving stability. At the same time, a magnetic block and a transmission plate are provided, the transmission plate is located between the two magnetic blocks, and the transmission plate is fixedly connected to the slide bar. When the liquid level in the storage tank fluctuates, the buoyancy plate moves synchronously, thereby driving the slide bar to shake. At this time, the slide bar slides, driving the transmission plate to move between the two magnetic blocks, and the kinetic energy of the transmission plate shaking is consumed by the Ampere force, thereby improving the buffering effect and improving the stability of the overall storage device; 2. The present invention provides a control cylinder, and a control plug is slidably installed on the inner wall of the control cylinder. The inner cavity of the control cylinder is filled with alcohol. When the control cylinder is heated or cooled, the volume of the alcohol changes, thereby driving the control plug to slide. The sliding of the transmission ring is controlled by the control plug. A spiral groove is provided on the radial outer wall of the control shaft. A transmission block is fixedly installed on the inner wall of the control ring. The outer wall of the transmission block slides with the inner wall of the spiral groove. The sliding control ring slides along the inner wall of the spiral groove through the transmission block, thereby driving the control shaft to rotate, and then the alcohol in the control cylinder is driven to expand and contract through the external temperature, thereby driving the control plug to slide, thereby realizing automatic adjustment of the position of the hot end and the cold end of the control plate according to the external temperature, and then automatically adjusting the cooling and heating of the inner cavity of the insulation cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the mounting frame of the present invention; Figure 3It is a structural schematic diagram of the slide bar in the present invention; Figure 4 It is a schematic diagram of the internal structure of the storage cylinder in the present invention; Figure 5 It is a schematic diagram of the circulation tank in the present invention; Figure 6 It is a schematic diagram of the installation of the guide fan in the present invention; Figure 7 It is a schematic diagram of the installation of the control plug in the present invention; Figure 8 Schematic diagram of the spiral groove in the present invention.

[0018] In the figure: 1. storage tank; 2. closing plate; 3. insulation cylinder; 4. transmission shaft; 5. support cylinder; 6. temperature control cylinder; 7. control cylinder; 8. magnetic block; 9. transmission plate; 10. buoyancy plate; 11. connecting cylinder; 12. transmission plate; 13. mounting frame; 14. sliding rod; 15. connecting shaft; 16. control plate; 17. storage cylinder; 18. circulation groove; 19. transmission ball; 20. guide fan; 21. heat exchange plate; 22. control plug; 23. transmission cylinder; 24. control shaft; 25. rotating shaft; 26. control plate; 27. heat conducting plate; 28. guide rod; 29. ​​control ring; 30. transmission block; 31. spiral groove; 32. guide plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1: Figures 1 to 8 As shown, the dynamic stabilization device for liquid rocket sea-launching and propellant filling of the present invention includes a storage portion, a collection mechanism, a damping mechanism and an auxiliary mechanism.

[0021] The storage part includes a storage tank 1 and a closing plate 2, wherein the closing plate 2 is detachably mounted on the upper end of the storage tank 1, wherein the storage tank 1 is used to store propellant, and the closing plate 2 is connected to the storage tank 1 by bolts to close the storage tank 1 to form a closed chamber.

[0022] The collecting mechanism includes a buoyancy plate 10, a connecting tube 11 and a sliding rod 14. The bottom of the connecting tube 11 is fixedly connected to the upper end surface of the buoyancy plate 10. After the propellant is injected, the buoyancy plate 10 floats on the liquid surface. The sliding rod 14 is slidably arranged in the inner cavity of the connecting tube 11. The sliding rod 14 is a hexagonal prism. The sliding rod 14 can slide along the inner wall of the connecting tube 11, and the rotating sliding rod 14 rotates through the connecting tube 11.

[0023] When the propellant liquid level in the storage tank 1 shakes, the buoyancy plate 10 floats on the liquid surface, which can offset the fluctuation of the liquid to a certain extent. When the liquid shakes, the float will move accordingly, absorbing the fluctuation energy through the change of buoyancy, thereby reducing the amplitude of the liquid surface shaking and preventing the frequency of the liquid surface shaking from being the same as the frequency of the storage tank 1 shaking, thereby achieving the effect of shock absorption and improving stability.

[0024] The damping mechanism includes a mounting frame 13, a magnetic block 8 and a transmission plate 9. The transmission plate 9 is a metal conductor plate. In this embodiment, an aluminum plate is selected. The mounting frame 13 is rotatably mounted on the bottom surface of the closing plate 2. The magnetic block 8 is fixedly mounted on the outer wall of the mounting frame 13, and two magnetic blocks 8 are provided. The magnetic poles of the two magnetic blocks 8 that are close to each other are opposite. A magnetic field is formed in the mounting frame 13 through the two magnetic blocks 8.

[0025] One end of the slide bar 14 is rotatably connected to the mounting frame 13. The transmission plate 9 is located between the two magnetic blocks 8, and the transmission plate 9 is fixedly connected to the slide bar 14. When the liquid level in the storage tank 1 fluctuates, the buoyancy plate 10 moves synchronously, thereby driving the slide bar 14 to shake. At this time, the slide bar 14 slides, driving the transmission plate 9 to move between the two magnetic blocks 8, and the kinetic energy of the shaking of the transmission plate 9 is consumed by the Ampere force, thereby improving the buffering effect.

[0026] The sliding connection between the sliding rod 14 and the connecting tube 11 is to adapt to the use of liquid levels at different heights, so that the buoyancy plate 10 can be in real-time contact with the liquid surface.

[0027] The auxiliary mechanism includes a storage cylinder 17 and a control board 16. The storage cylinder 17 is filled with damping fluid. The control board 16 is slidably mounted on the inner wall of the storage cylinder 17. The control board 16 is connected to the inner wall of the storage cylinder 17 through a spring, and the outer wall of the control board 16 is sealed to the inner wall of the storage cylinder 17.

[0028] The outer wall of the control panel 16 is provided with a through hole for the damping fluid to pass through. During the sliding process of the control panel 16, the damping fluid generates damping through the through hole. The sliding of the control panel 16 is controlled by the sliding of the mounting frame 13 to consume the kinetic energy of the rotation of the mounting frame 13, thereby consuming the kinetic energy of the flow when the liquid in the storage tank 1 rotates and flows in a horizontal direction, thereby improving the buffering adaptability range.

[0029] As a preferred embodiment of the present invention, a transmission shaft 4 is rotatably mounted on the inner wall of the storage cylinder 17, the axis of the transmission shaft 4 coincides with the axis of the storage cylinder 17, a connecting shaft 15 connected to the transmission shaft 4 is fixedly mounted on the upper end surface of the mounting frame 13, the transmission shaft 4 passes through the storage cylinder 17, and a sealed bearing is provided at the connection position.

[0030] When the liquid in the storage tank 1 rotates and flows along the horizontal plane, the buoyancy plate 10 is driven by the tension of the liquid, thereby having a tendency to move synchronously. At this time, the buoyancy plate 10 drives the connecting shaft 15 and the transmission shaft 4 to rotate synchronously.

[0031] A circulation groove 18 is formed on the radial outer wall of the transmission shaft 4 , wherein the circulation groove 18 is arranged obliquely.

[0032] The control board 16 is sleeved on the outer wall of the transmission shaft 4, and a transmission ball 19 is fixedly installed on the inner wall of the control board 16. The outer wall of the transmission ball 19 slides and fits with the inner wall of the circulation groove 18. The rotating transmission shaft 4 drives the control board 16 to slide back and forth along the axial direction of the transmission shaft 4 through the cooperation between the transmission ball 19 and the circulation groove 18. At this time, the damping fluid passes through the through hole on the outer wall of the control board 16 to generate damping, thereby consuming the kinetic energy of the rotation of the mounting frame 13 to achieve a buffering effect.

[0033] In order to facilitate the liquid in the storage tank 1 to rotate and flow along the horizontal plane to drive the buoyancy board 10 to move synchronously, a transmission plate 12 is fixedly installed on the bottom surface of the buoyancy board 10, and the transmission plate 12 extends below the liquid surface, so that the liquid in the storage tank 1 rotates and flows along the horizontal plane to drive the buoyancy board 10 to move synchronously.

[0034] As a preferred embodiment of the present invention, an insulation cylinder 3 is fixedly installed on the upper end surface of the closing plate 2, and the insulation cylinder 3 is sleeved on the outer wall of the storage cylinder 17. By controlling the temperature of the inner cavity of the insulation cylinder 3, the damping fluid inside the storage cylinder 17 is kept at a required temperature, the stability of the damping fluid is maintained, and the stability of the buffer is maintained.

[0035] A temperature control cylinder 6 is fixedly installed on the upper end surface of the closing plate 2, and a rotating shaft 25 is rotatably installed on the axial end of the temperature control cylinder 6. A control plate 26 is fixedly installed on the outer wall of the rotating shaft 25, wherein the control plate 26 divides the closing plate 2 into two left and right chambers, one of which is used for gas circulation, and rotating the rotating shaft 25 is used to drive the control plate 26 to rotate.

[0036] The control plate 26 has a cold end and a hot end, and the control plate 26 is a common semiconductor cooling plate.

[0037] The inner cavity of the temperature control cylinder 6 is connected to the inner cavity of the heat preservation cylinder 3. When it is necessary to heat the damping liquid in the storage cylinder 17, the control plate 26 is rotated until the hot end of the control plate 26 is located in the chamber for gas circulation in the temperature control cylinder 6, so as to heat the air in the temperature control cylinder 6 and finally transport it to the heat preservation cylinder 3 to realize the heating of the damping liquid in the storage cylinder 17.

[0038] When the damping liquid in the storage cylinder 17 needs to be cooled, the control plate 26 is rotated until the cold end of the control plate 26 is located in the chamber for gas circulation in the temperature control cylinder 6, so as to cool the air in the temperature control cylinder 6 and finally transport it to the inner cavity of the insulation cylinder 3 to achieve cooling of the damping liquid in the storage cylinder 17.

[0039] A support tube 5 is fixedly installed on the upper end surface of the closing plate 2, and a guide fan 20 is fixedly installed in the inner cavity of the support tube 5, wherein the guide fan 20 is composed of a servo motor and fan blades, and the fan blades are arranged on the output shaft of the servo motor. The rotation of the fan blades is controlled by the servo motor, thereby controlling the gas flow.

[0040] One end of the support tube 5 is fixedly connected to the outer wall of the insulation tube 3 through a conduit, and the other end of the support tube 5 is connected to the temperature control tube 6 through a conduit. The gas in the inner cavity of the temperature control tube 6 is controlled by the guide fan 20 to flow into the inner cavity of the insulation tube 3, so as to maintain the temperature inside the insulation tube 3.

[0041] As a preferred embodiment of the present invention, a guide plate 32 is fixedly installed on the radial outer wall of the storage cylinder 17. The guide plate 32 is spirally distributed on the inner wall of the insulation cylinder 3. When air is introduced into the insulation cylinder 3, it is guided by the guide plate 32 so that the discharged air is evenly in contact with the outer wall of the storage cylinder 17, so that the damping liquid in the storage cylinder 17 is evenly heated (or cooled).

[0042] A through hole for exhaust is provided at the upper end of the heat preservation tube 3 , so that when external air enters the heat preservation tube 3 , the air is exhausted through the through hole, thereby maintaining the air pressure balance in the inner cavity of the heat preservation tube 3 .

[0043] A heat conducting sheet 27 is fixedly mounted on the outer wall of the control sheet 26. A plurality of heat conducting sheets 27 are evenly arranged along the outer wall of the control sheet 26. The heat conducting sheets 27 are common copper plates and are parallel to the axis of the temperature control tube 6. They are used to increase the contact area when the air is heated or cooled, thereby improving the temperature control effect.

[0044] As a preferred embodiment of the present invention, a control cylinder 7 is fixedly mounted on the upper end surface of the closing plate 2 , and a control shaft 24 is rotatably mounted on the inner wall of the control cylinder 7 , and the control cylinder 7 provides installation and support for the control shaft 24 .

[0045] One end of the control shaft 24 extends to the outer wall of the control tube 7 and is fixedly connected to the center position of the axial end of the rotating shaft 25. The rotating control shaft 24 is used to drive the rotating shaft 25 to rotate so as to adjust the position of the cold end and the hot end of the control plate 26.

[0046] A control ring 29 is elastically mounted in the inner cavity of the control cylinder 7 , and the inner wall of the control ring 29 is slidably fitted with the radial outer wall of the control shaft 24 , and the control shaft 24 provides support for the control ring 29 .

[0047] A spiral groove 31 is provided on the radial outer wall of the control shaft 24, and a transmission block 30 is fixedly installed on the inner wall of the control ring 29. The outer wall of the transmission block 30 slides with the inner wall of the spiral groove 31. The sliding control ring 29 slides along the inner wall of the spiral groove 31 through the transmission block 30, thereby driving the control shaft 24 to rotate and realizing the rotation adjustment of the control plate 26.

[0048] A control plug 22 is slidably mounted on the inner wall of the control cylinder 7, and the outer wall of the control plug 22 is sealed and fitted with the inner wall of the control cylinder 7, wherein the inner cavity of the control cylinder 7 is filled with alcohol, and when the control cylinder 7 is heated, the volume of the alcohol expands, thereby driving the control plug 22 to slide.

[0049] The axial end of the control plug 22 is rotatably mounted with a transmission cylinder 23, and the other end of the transmission cylinder 23 is rotatably connected to the axial end of the control ring 29. When the control plug 22 slides, the control ring 29 is driven to slide through the transmission cylinder 23, and then the rotating shaft 25 is driven to rotate through the control shaft 24, thereby realizing the rotation adjustment of the control plate 26.

[0050] In this embodiment, the alcohol in the control tube 7 is driven to expand and contract by the external temperature, thereby driving the control plug 22 to slide, thereby automatically adjusting the position of the hot end and the cold end of the control plate 26 according to the external temperature, thereby automatically adjusting the cooling and heating of the inner cavity of the insulation tube 3.

[0051] In order to prevent the control ring 29 from rotating, a guide rod 28 is fixedly installed on the inner wall of the control cylinder 7, and the outer wall of the control ring 29 slides in contact with the outer wall of the guide rod 28. By setting the guide rod 28, the sliding trajectory of the control ring 29 is limited, thereby preventing the control ring 29 from rotating, thereby improving the stability of the rotation of the control shaft 24.

[0052] A heat exchange plate 21 is fixedly mounted on the outer wall of the control tube 7, one end of the heat exchange plate 21 extends to the inner cavity of the control tube 7, and a plurality of heat exchange plates 21 are arranged in a ring shape along the axis of the control tube 7, wherein the heat exchange plate 21 is a common copper plate, so that the external temperature can be transferred to the alcohol inside the control tube 7 through the heat exchange plate 21, thereby improving the sensitivity of the volume change of the alcohol.

[0053] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 should not be understood as limiting the scope of protection of the present invention.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dynamic stabilization device for liquid rocket propellant injection for sea launch, characterized in that: It includes a storage unit, a collection unit, a damping unit and an auxiliary unit; The storage portion comprises a storage tank (1) and a closing plate (2), wherein the closing plate (2) is detachably mounted on the upper end of the storage tank (1); The collection mechanism comprises a buoyancy plate (10), a connecting tube (11) and a sliding rod (14); the bottom of the connecting tube (11) is fixedly connected to the upper end surface of the buoyancy plate (10); and the sliding rod (14) is slidably arranged in the inner cavity of the connecting tube (11); The damping mechanism comprises a mounting frame (13), a magnetic block (8) and a transmission plate (9), wherein the transmission plate (9) is a metal conductor plate, the mounting frame (13) is rotatably mounted on the bottom surface of the closing plate (2), the magnetic block (8) is fixedly mounted on the outer wall of the mounting frame (13), and two magnetic blocks (8) are provided, and the magnetic poles of the two magnetic blocks (8) that are close to each other are opposite; One end of the slide bar (14) is rotatably connected to the mounting frame (13), the transmission plate (9) is located between the two magnetic blocks (8), and the transmission plate (9) is fixedly connected to the slide bar (14); The auxiliary mechanism comprises a storage cylinder (17) and a control plate (16); the storage cylinder (17) is filled with damping fluid; the control plate (16) is slidably mounted on the inner wall of the storage cylinder (17); and the outer wall is provided with a through hole for the damping fluid to pass through; The sliding movement of the control panel (16) is controlled by the sliding movement of the mounting frame (13).

2. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 1, characterized in that: A transmission shaft (4) is rotatably mounted on the inner wall of the storage cylinder (17), and a connecting shaft (15) connected to the transmission shaft (4) is fixedly mounted on the upper end surface of the mounting frame (13); The radial outer wall of the transmission shaft (4) is provided with a circulation groove (18), the control plate (16) is sleeved on the outer wall of the transmission shaft (4), a transmission ball (19) is fixedly mounted on the inner wall of the control plate (16), and the outer wall of the transmission ball (19) is slidably fitted with the inner wall of the circulation groove (18); A transmission sheet (12) is fixedly mounted on the bottom surface of the buoyancy plate (10).

3. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 2, characterized in that: A heat-insulating cylinder (3) is fixedly mounted on the upper end surface of the closing plate (2), and the heat-insulating cylinder (3) is sleeved on the outer wall of the storage cylinder (17); A temperature control cylinder (6) is fixedly mounted on the upper end surface of the closing plate (2), a rotating shaft (25) is rotatably mounted on the axial end of the temperature control cylinder (6), and a control plate (26) is fixedly mounted on the outer wall of the rotating shaft (25); The control sheet (26) has a cold end and a hot end; The inner cavity of the temperature control cylinder (6) is in communication with the inner cavity of the heat preservation cylinder (3).

4. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 3, characterized in that: A support cylinder (5) is fixedly mounted on the upper end surface of the closing plate (2), and a guide fan (20) is fixedly mounted in the inner cavity of the support cylinder (5); One end of the support tube (5) is fixedly connected to the outer wall of the heat-insulating tube (3) via a conduit, and the other end of the support tube (5) is connected to the temperature-control tube (6) via a conduit.

5. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 4, characterized in that: A guide plate (32) is fixedly mounted on the radial outer wall of the storage cylinder (17), and the guide plate (32) is distributed in a spiral shape on the inner wall of the heat preservation cylinder (3); The upper end of the heat-insulating cylinder (3) is provided with a through hole for exhausting air; A heat conducting sheet (27) is fixedly mounted on the outer wall of the control sheet (26), and a plurality of the heat conducting sheets (27) are evenly arranged along the outer wall of the control sheet (26).

6. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 5, characterized in that: A control cylinder (7) is fixedly mounted on the upper end surface of the closing plate (2), and a control shaft (24) is rotatably mounted on the inner wall of the control cylinder (7). One end of the control shaft (24) extends to the outer wall of the control cylinder (7) and is fixedly connected to the center position of the axial end of the rotating shaft (25).

7. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 6, characterized in that: A control ring (29) is elastically mounted in the inner cavity of the control cylinder (7), and the inner wall of the control ring (29) is slidably fitted with the radial outer wall of the control shaft (24); A spiral groove (31) is formed on the radial outer wall of the control shaft (24), a transmission block (30) is fixedly mounted on the inner wall of the control ring (29), and the outer wall of the transmission block (30) is slidably fitted with the inner wall of the spiral groove (31).

8. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 7, characterized in that: A control plug (22) is slidably mounted on the inner wall of the control cylinder (7), and the outer wall of the control plug (22) is in sealing contact with the inner wall of the control cylinder (7); A transmission cylinder (23) is rotatably mounted on the axial end of the control plug (22), and the other end of the transmission cylinder (23) is rotatably connected to the axial end of the control ring (29).

9. The dynamic stabilization device for liquid rocket propellant filling at sea launch according to claim 8, characterized in that: A guide rod (28) is fixedly mounted on the inner wall of the control cylinder (7), and the outer wall of the control ring (29) is slidably fitted to the outer wall of the guide rod (28); A heat exchange plate (21) is fixedly mounted on the outer wall of the control cylinder (7), one end of the heat exchange plate (21) extends to the inner cavity of the control cylinder (7), and a plurality of the heat exchange plates (21) are arranged in a ring shape along the axis of the control cylinder (7).

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