Satellite deorbit release device
By using a power block to drive a power rod to push the push block to slide and release the limit plate, and combined with a vibration damping component to buffer vibration, the problem of easy error in the unlocking mechanism of the satellite deorbiting release device is solved, and the flexibility and stable operation of satellite unlocking are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU UNIV
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
The unlocking mechanism of existing satellite deorbit release devices is prone to accidental triggering or insufficient cutting precision in the space environment, which makes satellite unlocking inconvenient and affects normal operation and deorbiting.
The system uses a power block to drive a power rod to push a push block, which in turn pushes the moving block to slide and release the limit plate. Combined with a vibration damping component, the system uses damping columns and springs to buffer vibrations, ensuring the controllability and stability of unlocking and attitude control.
This achieves flexibility and controllability in satellite unlocking, reduces vibration damage to equipment, and ensures stable operation and precise control of the satellite during deorbiting.
Smart Images
Figure CN224131318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerospace technology, and in particular to a satellite deorbiting release device. Background Technology
[0002] The satellite deorbit release device is a critical piece of equipment installed on a satellite, functioning in situations such as when the satellite completes its designated mission, reaches the end of its lifespan, or malfunctions. It performs an unlocking action through a specific mechanism, detaching the satellite from its original orbital maintenance system. Using its propulsion mechanism, it generates thrust to change the satellite's orbital parameters, while its attitude control mechanism ensures the satellite maintains a suitable attitude during deorbiting. Ultimately, the satellite is deorbited from its current orbit and safely and controllably enters the atmosphere to burn up or is transferred to a designated abandoned orbit, preventing it from becoming space debris and ensuring the safety and order of the space orbital environment.
[0003] When the satellite deorbit release device is operated, after triggering the deorbit command, the control circuit in the device receives the signal and starts the drive mechanism. The drive mechanism drives the unlocking component to separate the satellite from the original connected structure. At the same time, the propulsion system in the device starts working, generating reaction force by spraying propellant to provide the satellite with the thrust required to change its orbit, propelling the satellite to the predetermined deorbit trajectory. In addition, the attitude control component will adjust the operation of the attitude control engine or use other attitude adjustment methods based on the satellite attitude information fed back by the sensors to ensure that the satellite maintains the correct attitude during the deorbit process, so as to achieve precise and safe deorbit operation.
[0004] However, some existing satellite deorbit release devices suffer from inconvenient unlocking mechanisms. Common unlocking mechanisms include explosive bolts and cutters, but these mechanisms have revealed numerous drawbacks in practical applications. For example, explosive bolts rely on an internal explosive device to generate an instantaneous impact force to cut the connecting bolts and unlock the satellite. However, this process carries significant risks. During long-term satellite operation in orbit, the complex and ever-changing space environment, including factors such as space radiation and electromagnetic interference, can easily cause the explosive bolts to be accidentally triggered, leading to premature unlocking. This could cause the satellite to detach from its onboard structure before completing its mission, resulting in serious consequences. Furthermore, the powerful impact of the explosion can cause the bolts and surrounding components to scatter into fragments. These fragments can easily collide with critical equipment such as the satellite's solar panels and communication antennas, not only affecting the satellite's current normal operation but also greatly hindering subsequent deorbit operations. Looking at cutters, such as laser cutters, the propagation of the laser beam in the space environment is affected by factors such as space dust and plasma, which greatly reduces the cutting accuracy. Parts that were originally designed to be cut precisely are prone to incomplete cutting or deviation in cutting position, which seriously affects the unlocking effect. To solve the above problems, a satellite deorbiting release device is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a satellite deorbiting release device, which aims to improve the problem of inconvenient use of the unlocking mechanism in the existing satellite deorbiting release device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a satellite deorbiting release device, comprising a connecting shell, a plurality of power blocks fixedly connected to the outside of the connecting shell, power rods fixedly connected to the front sides of the plurality of power blocks, push blocks fixedly connected to the front sides of the plurality of power rods, movable blocks slidably connected to the bottom ends of the plurality of push blocks on their adjacent sides, pressure plates fixedly connected to the front sides of the plurality of movable blocks on their distant sides, compression pads fixedly connected to the adjacent sides of the plurality of pressure plates, limit plates fixedly connected to the adjacent sides of the plurality of movable blocks, guide rings slidably connected to the outside of the plurality of power rods, and a vibration damping component for vibration damping and buffering fixedly connected to the rear inner wall of the connecting shell.
[0007] As a further description of the above technical solution: the vibration damping assembly includes multiple vibration damping pads one, the outer sides of the multiple vibration damping pads one that are far apart are all fixedly connected to the rear inner wall of the connecting shell, the adjacent sides of the multiple vibration damping pads one are respectively fixedly connected to damping columns, the adjacent sides of the multiple damping columns are respectively fixedly connected to support rings, the adjacent sides of the multiple support rings are respectively fixedly connected to vibration damping pads two, the outer sides of the multiple damping columns are respectively fitted with springs one, the outer sides of the multiple support rings are respectively fixedly connected to springs two, and the rear inner wall of the connecting shell is fixedly connected to a vibration damping ring.
[0008] As a further description of the above technical solution: a protective shell is fixedly connected to one of the opposite sides of the plurality of power blocks, and a plurality of fuel tanks are fixedly connected to the outside of the protective shell.
[0009] As a further description of the above technical solution: the front inner wall of the connecting shell is fixedly connected to the outer shell II, the front two sides of the outer shell II are respectively fixedly connected to the sail plate II, the rear inner wall of the connecting shell is fixedly connected to the outer shell I, and the rear two sides of the outer shell I are respectively fixedly connected to the sail plate I.
[0010] As a further description of the above technical solution: the adjacent sides of the plurality of vibration damping pads two are fixedly connected to the front exterior of the housing one, and the inner wall of the vibration damping ring is fixedly connected to the front exterior of the housing one.
[0011] As a further description of the above technical solution: the external of the plurality of limiting plates is fixedly connected to the rear inner wall of the second outer shell, and the external of the plurality of moving blocks is fixedly connected to the rear inner wall of the second outer shell.
[0012] As a further description of the above technical solution: the external parts of the plurality of compression pads are slidably connected to the front inner wall of the connecting shell, and the external parts of the plurality of pressure plates are slidably connected to the front inner wall of the connecting shell.
[0013] As a further description of the above technical solution: the outer side of the plurality of push blocks is slidably connected to the outer inner wall of the connecting shell, and the inner wall of the guide ring is fixedly connected to the outside of the connecting shell.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, a power block drives a power rod to move backward, which in turn drives a push block to move backward. The push block pushes a moving block to slide within the connecting shell, and the moving block drives a limiting plate to move upward via a compression pad, causing the limiting plate to detach from the outer shell, thereby releasing the outer shell. This release of the limiting plate from the outer shell meets the operational requirements of the equipment under specific conditions and ensures the flexibility and controllability of the equipment operation.
[0016] 2. In this utility model, the vibration of the outer shell one drives the vibration damping pad two to move, the vibration damping pad two drives the support ring, the support ring drives the damping column, the damping column compresses the spring one, and at the same time the support ring compresses the spring two, thereby achieving the effect of vibration damping and buffering, reducing the damage of vibration to the equipment, and ensuring the stable operation of the equipment. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a satellite deorbiting release device proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the connecting shell of a satellite deorbiting release device proposed in this utility model;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0021] Legend:
[0022] 1. Connecting shell; 2. Power block; 3. Power rod; 4. Push block; 5. Moving block; 6. Pressure plate; 7. Compression pad; 8. Limiting plate; 9. Vibration damping pad one; 10. Damping column; 11. Spring one; 12. Spring two; 13. Support ring; 14. Vibration damping pad two; 15. Vibration damping ring; 16. Protective shell; 17. Fuel tank; 18. Outer shell one; 19. Sailboard one; 20. Outer shell two; 21. Sailboard two; 22. Guide ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figures 1 to 3 This utility model provides an embodiment of a satellite deorbiting release device, comprising a connecting shell 1, with multiple power blocks 2 fixedly connected to the outside of the connecting shell 1. Power rods 3 are fixedly connected to the front sides of each of the power blocks 2. When the power blocks 2 generate power, the power is transmitted to the power rods 3 through an interface, enabling the power rods 3 to move linearly under the drive of the power blocks 2. Push blocks 4 are fixedly connected to the front sides of each of the power rods 3. When the power rods 3 move forward under the drive of the power blocks 2, the push blocks 4 move along with the power rods 3. Moving blocks 5 are slidably connected to the bottom ends of adjacent sides of each of the push blocks 4. When the push blocks 4 move, the moving blocks 5 are pushed to move along with them through the cooperation of a sliding groove and a slider.
[0025] The sliding of the movable block 5 provides the basis for subsequent actions. Multiple movable blocks 5 have pressure plates 6 fixedly connected to their opposite front ends. When the movable block 5 slides under the action of the push block 4, the pressure plates 6 move accordingly. The function of the pressure plates 6 is to apply pressure to specific objects or components. Compression pads 7 are fixedly connected to the adjacent sides of the multiple pressure plates 6. When the pressure plates 6 apply pressure to the object under the action of the movable blocks 5, the compression pads 7 are compressed. The function of the compression pads 7 is to buffer pressure and provide a restoring capability. Limiting plates 8 are fixedly connected to the adjacent sides of the multiple movable blocks 5. When the movable block 5 slides to a certain position, the limiting plates 8 will contact and fix with other components. Guide rings 22 are slidably connected to the outside of the multiple power rods 3. The power rods 3 pass through the guide rings 22 during movement. The function of the guide rings 22 is to guide the movement of the power rods 3, ensuring that the power rods 3 can move along a predetermined straight trajectory, preventing the power rods 3 from deviating or wobbling during movement, and improving the efficiency and accuracy of power transmission. A vibration damping component for shock absorption is fixedly connected to the rear inner wall of the connecting shell 1.
[0026] Reference Figures 2 to 4The vibration damping assembly includes multiple damping pads 9. The outer sides of the distant damping pads 9 are fixedly connected to the rear inner wall of the connecting shell 1. When the connecting shell 1 vibrates due to equipment operation, the damping pads 9 can promptly sense and begin to function, initially absorbing and buffering the vibration energy to prevent direct transmission of vibration to other components. Damping columns 10 are fixedly connected to the adjacent sides of the multiple damping pads 9. When a damping pad 9 deforms due to vibration, it transmits the vibration to the damping column 10. The damping material inside the damping column 10 generates friction and viscous resistance during the movement of the column, converting the mechanical energy of the vibration into heat energy, thereby further reducing the amplitude and frequency of the vibration.
[0027] Support rings 13 are fixedly connected to adjacent sides of multiple damping columns 10. When the damping columns 10 are subjected to vibration and deform, the support rings 13 can evenly distribute these forces, preventing excessive local stress and damage to the components. Vibration damping pads 14 are fixedly connected to adjacent sides of the multiple support rings 13. When the support rings 13 are subjected to vibration transmitted from the damping columns 10, the vibration damping pads 14 will absorb and buffer the vibration again. Springs 11 are fitted around the exterior of each of the multiple damping columns 10. When the damping columns 10 expand or contract under vibration, the springs 11 will compress or stretch accordingly. The elastic properties of the springs 11 allow them to store and release energy, playing a buffering and regulating role during vibration.
[0028] Multiple support rings 13 are fixedly connected to opposite sides by springs 12. When a support ring 13 is displaced under vibration, spring 12 deforms accordingly, absorbing and dispersing vibration energy. A damping ring 15 is fixedly connected to the rear inner wall of the connecting shell 1. It fits tightly against the connecting shell 1, dispersing vibration energy evenly across the entire ring. The energy is then dissipated through its own deformation and internal damping, ensuring that the vibration of the connecting shell 1 is minimized, providing a reliable guarantee for the stable operation of the equipment.
[0029] Reference Figures 1 to 3 Multiple power blocks 2 are fixedly connected to protective shells 16 on opposite sides to prevent the power blocks 2 from interfering with other components during operation. Multiple fuel tanks 17 are fixedly connected to the outside of the protective shells 16. A second outer shell 20 is fixedly connected to the front inner wall of the connecting shell 1. The second outer shell 20 is tightly integrated with the connecting shell 1, forming a relatively stable space that effectively prevents external impurities and interference factors from entering the interior, protecting the normal operation of the internal components. Sail plates 21 are fixedly connected to both sides of the front end of the second outer shell 20. A first outer shell 18 is fixedly connected to the rear inner wall of the connecting shell 1, forming a closed space that effectively blocks external dust, moisture, and other harmful substances, providing a good working environment for the internal components.
[0030] Sailboards 19 are fixedly connected to both sides of the rear end of the outer shell 18. Multiple vibration damping pads 14 are fixedly connected to the front exterior of the outer shell 18 on adjacent sides. When vibration is transmitted to the vibration damping pads 14, they undergo elastic deformation, converting vibration energy into heat energy and dissipating it, thereby reducing the impact of vibration on the outer shell 18 and its internal components. The inner wall of the vibration damping ring 15 is fixedly connected to the front exterior of the outer shell 18. When vibration is transmitted to the front of the outer shell 18, the vibration damping ring 15 further disperses and dissipates vibration energy through its own elastic deformation and internal damping. Multiple limiting plates 8 are fixedly connected to the rear inner wall of the outer shell 20. When the moving block 5 slides under the drive of the power rod 3 and the push block 4, the limiting plates 8 can block the moving block 5 when it reaches a certain position, preventing excessive movement of the moving block 5 and thus avoiding damage or loss of control of the device.
[0031] Multiple movable blocks 5 are externally fixedly connected to the rear inner wall of the outer casing 20. When the power rod 3 pushes the push block 4, thereby driving the movable block 5 to move, the rear inner wall of the outer casing 20 provides a stable foundation for the movable block 5, enabling it to move according to a predetermined trajectory and manner. Multiple compression pads 7 are externally slidably connected to the front inner wall of the connecting shell 1. The function of the compression pads 7 is to seal, buffer, and reset the front inner wall of the connecting shell 1 during sliding. Multiple pressure plates 6 are externally slidably connected to the front inner wall of the connecting shell 1. When the movable block 5 moves under the action of power, it will drive the pressure plate 6 to slide on the front inner wall of the connecting shell 1. The main function of the pressure plate 6 is to apply pressure to other components during sliding. Multiple push blocks 4 are externally slidably connected to the outer inner wall of the connecting shell 1 on adjacent sides. When the power rod 3 moves forward, it will push the push block 4 to slide on the outer inner wall of the connecting shell 1, thereby driving the movable block 5 to move. The inner wall of the guide ring 22 is fixedly connected to the outside of the connecting shell 1. This ensures that the power rod 3 maintains a straight trajectory during movement, preventing it from bending, deviating, or wobbling, thereby improving the efficiency and accuracy of power transmission.
[0032] Working principle: When satellite deorbiting and release are required, the power block 2 operates first. The activation of the power block 2 drives the connected power rod 3 to move backward. The movement of the power rod 3 causes the push blocks 4, which are fixed to the front of the power block 5, to slide backward. When the push blocks 4 move and slide, they separate from the moving block 5, thus releasing the moving block 5. When the moving block 5 needs to slide, the pressure plates 6 fixed to the front of the multiple moving blocks 5 move upward synchronously. The pressure plates 6 drive the compression pads 7 connected to the adjacent side upward, so that the compression pads 7 contact the front inner wall of the connecting shell 1 and generate a compression action. This pushes the moving block 5 to slide on a specific track. At the same time, the limiting plate 8 connected to the adjacent side of the moving block 5 moves with the sliding of the moving block 5. Since the limiting plate 8 is fixed to the rear inner wall of the outer shell 20, when the moving block 5 drives the limiting plate 8 to a specific position, the constraint relationship between the limiting plate 8 and the outer shell 20 is released, realizing the release of the limiting plate 8 from the outer shell 20. During this process, the fuel tank 17 generates power, which drives the connected outer shell 18 to overcome the constraints of the track and leave the track. This achieves the effect of the limit plate 8 releasing the outer shell 20, and the fuel tank 17 driving the outer shell 18 to leave the track. This meets the operating requirements of the equipment under specific working conditions, improves the flexibility and controllability of the equipment operation, and ensures that the equipment operates accurately according to the predetermined process.
[0033] When the equipment vibrates during operation, the outer casing 18 displaces due to the vibration, causing multiple vibration damping pads 14 fixedly connected to it to move. The vibration damping pads 14, under pressure, drive the support ring 13, which in turn pushes the damping column 10 connected to it. During this movement, the damping column 10 compresses the spring 11 sleeved on its exterior, while the support ring 13 moves backward, compressing the spring 12 fixed to it. Furthermore, the vibration of the outer casing 18 causes the vibration damping ring 15 to deform under stress, providing a buffering effect. Simultaneously, the vibration damping pad 9 also acts as a buffer and absorbs vibration energy between the rear inner wall of the outer casing 1 and the damping column 10. This achieves a vibration damping effect, reducing damage to the equipment, ensuring stable operation, and extending the equipment's service life.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A satellite de-orbiting release device comprising a connecting housing (1), characterised in that: Multiple power blocks (2) are fixedly connected to the outside of the connecting shell (1). Power rods (3) are fixedly connected to the front side of each of the multiple power blocks (2). Push blocks (4) are fixedly connected to the front side of each of the multiple power rods (3). Moving blocks (5) are slidably connected to the bottom ends of the multiple push blocks (4) on the same side. Pressure plates (6) are fixedly connected to the front side of the opposite end of each of the multiple moving blocks (5). Compression pads (7) are fixedly connected to the same side of each of the multiple pressure plates (6). Limiting plates (8) are fixedly connected to the same side of each of the multiple moving blocks (5). Guide rings (22) are slidably connected to the outside of the multiple power rods (3). A vibration damping component for vibration damping and buffering is fixedly connected to the inner rear wall of the connecting shell (1).
2. The satellite de-orbiting release device of claim 1, wherein: The vibration damping assembly includes multiple damping pads (9), with the outer sides of the multiple damping pads (9) being fixedly connected to the rear inner wall of the connecting shell (1). The outer sides of the multiple damping pads (9) are respectively fixedly connected to damping columns (10), the outer sides of the multiple damping columns (10) are respectively fixedly connected to support rings (13), the outer sides of the multiple support rings (13) are respectively fixedly connected to damping pads (14), the outer sides of the multiple damping columns (10) are respectively fitted with springs (11), the outer sides of the multiple support rings (13) are respectively fixedly connected to springs (12), and the rear inner wall of the connecting shell (1) is fixedly connected to a damping ring (15).
3. The satellite de-orbiting release device of claim 1, wherein: A protective shell (16) is fixedly connected to one side of each of the multiple power blocks (2), and multiple fuel tanks (17) are fixedly connected to the outside of the protective shell (16).
4. The satellite de-orbiting release device of claim 2, wherein: The front inner wall of the connecting shell (1) is fixedly connected to the outer shell two (20), the front two sides of the outer shell two (20) are respectively fixedly connected to the sail plate two (21), the rear inner wall of the connecting shell (1) is fixedly connected to the outer shell one (18), and the rear two sides of the outer shell one (18) are respectively fixedly connected to the sail plate one (19).
5. A satellite de-orbiting release device according to claim 4, characterised in that: The adjacent sides of the plurality of vibration damping pads 2 (14) are fixedly connected to the front exterior of the housing 1 (18), and the inner wall of the vibration damping ring (15) is fixedly connected to the front exterior of the housing 1 (18).
6. A satellite deorbiting release device according to claim 4, characterized in that: The external of the plurality of limiting plates (8) is fixedly connected to the rear inner wall of the outer shell 2 (20), and the external of the plurality of moving blocks (5) is fixedly connected to the rear inner wall of the outer shell 2 (20).
7. The satellite de-orbiting release device of claim 1, wherein: The external parts of the plurality of compression pads (7) are slidably connected to the front inner wall of the connecting shell (1), and the external parts of the plurality of pressure plates (6) are slidably connected to the front inner wall of the connecting shell (1).
8. The satellite de-orbiting release device of claim 1, wherein: The outer side of the plurality of push blocks (4) is slidably connected to the outer inner wall of the connecting shell (1), and the inner wall of the guide ring (22) is fixedly connected to the outside of the connecting shell (1).