A ground simulation test device for a wrapped space debris capture mechanism

Abstract

The present application relates to the technical field of space debris capture simulation test, more particularly to a ground simulation test device for a wrapped space debris capture mechanism, which comprises a frame, a capture mechanism, a translation driving mechanism and a rotation driving mechanism; a boom is connected to a power output end of the rotation driving mechanism, and the boom is used for connecting a simulated space debris.The present application overcomes the deficiency that the prior art cannot be used to simulate the collision effect of the simulated space debris and the wrapped space debris capture mechanism, the capture mechanism is arranged, the translation driving mechanism is used to drive the simulated space debris to move in two mutually perpendicular horizontal directions, and the rotation driving mechanism is used to drive the simulated space debris to rotate, so that the interaction and the collision effect of the simulated space debris and the wrapped capture mechanism can be simulated.The translation driving mechanism and the rotation driving mechanism of the present application are simple in structure and easy to operate, the action and the control of the capture mechanism are flexible, and the test efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of space debris capture simulation technology, and more specifically, to a ground simulation test device for a wraparound space debris capture mechanism. Background Technology

[0002] Space debris refers to useless objects floating in space, including abandoned satellites, rocket debris, fragments, and other man-made objects. With the increase in human space activity, space debris is also increasing. Space debris poses a serious threat to space exploration and satellite operations; even small pieces can cause serious damage or even destruction to astronauts and spacecraft.

[0003] Existing technologies typically employ robotic arms, nets, and harpoons to capture space debris. However, due to the diverse shapes, textures, and speeds of space debris, these capture mechanisms fail to capture some complex pieces. Envelopment-type capture mechanisms, on the other hand, capture space debris by forming a sealed cavity and enclosing it within. These mechanisms offer greater versatility and success rates, making them significant for research.

[0004] Simulating the interaction between space debris and encapsulation mechanisms on the ground is beneficial for optimizing these mechanisms and developing efficient capture plans. First, analyzing the energy distribution and stress concentration areas during the collision between space debris and the capture mechanism allows for the optimization of the mechanism's damping system and structural layout, enhancing its resistance to space debris impacts. Second, simulating impact effects helps in developing more effective space debris capture strategies. By analyzing the results of collisions between space debris and the capture mechanism under different conditions and with different structures, the optimal capture angle, velocity, and method can be determined, reducing uncertainties and risks during mission execution. Third, since space debris of different structures produces different effects upon impact, simulating these effects helps assess the potential damage to the capture mechanism and the fragmentation and dispersion behavior of the debris itself during impact. This is crucial for predicting and controlling the secondary distribution of debris after impact.

[0005] The prior art discloses a space electromagnetic despinning ground simulation experimental system and method based on formation satellites. It includes a space target simulation device, two three-degree-of-freedom electromagnetic simulation air-float platforms symmetrically arranged on both sides of the space target simulation device, a marble platform for placing the space target simulation device and the three-degree-of-freedom electromagnetic simulation air-float platforms, and a host computer that is respectively connected to the control of the space target simulation device and the three-degree-of-freedom electromagnetic simulation air-float platforms. The space target simulation device simulates the rotation of the space target under vacuum conditions, and the three-degree-of-freedom electromagnetic simulation air-float platforms simulate the despinning action of the service satellite on the space target and the motion and attitude of the service satellite.

[0006] First, the aforementioned existing technologies do not include a containment capture mechanism, therefore they cannot be used to simulate collisions between space debris and containment capture mechanisms. Second, the aforementioned existing technologies utilize an air-bearing platform to drive the movement of the space target. Since the air-bearing platform needs to be leveled by adjusting the pressure and distribution of the airflow each time it is activated to ensure that it is not affected by tilting or instability during the space debris test, the operation is relatively cumbersome and reduces the efficiency of the test. Summary of the Invention

[0007] To address the problem that existing technologies cannot be used to simulate the collision effects between space debris and enclosed capture mechanisms, this invention provides a ground simulation test device for enclosed space debris capture mechanisms, which can simulate the process of enclosed capture mechanisms capturing space debris and the collision effects between space debris and enclosed capture mechanisms.

[0008] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0009] A ground simulation test device for a wraparound space debris capture mechanism includes a frame with an inner cavity, a capture mechanism disposed at the bottom of the inner cavity, a translational drive mechanism and a rotational drive mechanism both disposed on the frame; the capture mechanism includes a drive assembly disposed at the bottom of the inner cavity, an intermediate panel, and multiple shell flap assemblies rotatably connected to the intermediate panel; the drive assembly drives the shell flap assemblies to rotate relative to the intermediate panel, causing the ends of the shell flap assemblies to move closer together or further apart; when the ends of the shell flap assemblies move closer together, the shell flap assemblies and the intermediate panel form a receiving cavity for accommodating space debris; the power output end of the rotational drive mechanism is connected to a boom, which is used to connect simulated space debris; the translational drive mechanism drives the boom to move horizontally.

[0010] In the above technical solution, initially, the ends of the shell flap assemblies are far apart, and the containment cavity is not formed. First, the simulated space debris is connected to the boom, and a translational drive mechanism moves the boom so that the simulated space debris is directly above the capture mechanism and within the containment cavity. Then, a rotational drive mechanism rotates the boom, causing the simulated space debris to rotate. Simultaneously, the drive assembly gradually brings the ends of the shell flap assemblies closer together. During this process, the translational drive mechanism moves the boom, causing the simulated space debris to collide with the inner side of the shell flap assemblies, i.e., with the inner wall of the containment cavity, simulating a collision between the space debris and the shell flap assemblies. Finally, the shell flap assemblies and the middle panel form a containment cavity, enclosing the simulated space debris within it, thus completing one simulated capture experiment.

[0011] The translation drive mechanism can be driven by a synchronous belt drive, a motor screw drive, a gear and rack drive, an electric push rod drive, a cylinder drive, or a hydraulic cylinder drive, among other methods.

[0012] Preferably, the translational drive mechanism includes a first electric push rod disposed at the top of the frame, the power output end of the first electric push rod being connected to a first slider, and the rotary drive mechanism being disposed on the first slider. The power output end of the first electric push rod pushes the first slider to slide, thereby driving the rotary drive mechanism and the simulated space debris on the boom to move together. Compared with other linear drive mechanisms, the electric push rod can precisely control the movement speed and position of the first slider, and its simple structure and easy operation are beneficial to improving experimental efficiency.

[0013] Preferably, the translation drive mechanism further includes a second electric push rod disposed at the top of the frame. The power output end of the second electric push rod is connected to a second slider. The first electric push rod is connected to the power output end of the second electric push rod via the second slider. The sliding directions of the second slider and the first slider are perpendicular to each other. The power output end of the second electric push rod pushes the second slider to slide, which in turn drives the first electric push rod to slide, thereby simulating the movement of space debris in two mutually perpendicular horizontal directions. This expands the range of motion of the simulated space debris in the horizontal direction, allowing for more precise adjustment of the simulated space debris's position.

[0014] The rotary drive mechanism can be one of a synchronous belt drive mechanism, a motor, a rotary cylinder, a rack and pinion drive mechanism, etc. Preferably, the rotary drive mechanism includes a motor mounted on the first slider, and the output shaft of the motor is connected to one end of the boom. The motor drives the boom to rotate, thereby causing the simulated space debris to rotate. Compared with other rotary drive mechanisms, the motor has a simpler structure, higher power output efficiency, and a simpler driving method.

[0015] Preferably, the boom is made of an elastic material, including soft elastic materials such as rubber, silicone, and polyurethane. Such a boom can effectively transmit the translational and rotational motion of the translational drive mechanism and the rotary drive mechanism, while not causing excessive compression to the ends of the shell flap assemblies when they come together.

[0016] Preferably, casters are provided at each of the four top corners of the bottom of the frame. The casters facilitate the movement of the frame.

[0017] Preferably, the flap assemblies are circumferentially distributed on the middle panel. The driving assembly includes a driver with a fixed portion and a telescopic assembly. One end of the telescopic assembly is connected to the fixed portion, and the other end is connected to the flap assemblies. The driver drives the telescopic assembly to extend and retract. When the telescopic assembly extends, the ends of the flap assemblies move closer together; when the telescopic assembly retracts, the ends of the flap assemblies move further apart. It is understood that when the telescopic assembly extends, one end of the telescopic assembly applies a thrust to the flap assemblies. This thrust can push the flap assemblies to rotate towards the inner side of the middle panel, thereby causing the ends of the flap assemblies to move closer together, ultimately forming a receiving cavity with the middle panel. Driving the flap assemblies to move apart or closer together by extending and retracting the telescopic assembly is a flexible and safe driving method, and it also simplifies the structure of the entire capture mechanism.

[0018] It is understandable that the inner side of the middle panel and the shell flap assembly refers to the side where the receiving cavity is located, and the outer side refers to the side opposite to the receiving cavity.

[0019] Preferably, the telescopic assembly includes a first joint, a second joint, and a first pusher. The first joint and the second joint are rotatably connected, and both are rotatably connected to the fixed part and the first pusher, respectively. The first pusher is rotatably connected to the outside of the shell assembly. The rotation axis of the first joint relative to the fixed part and the rotation axis of the second joint relative to the first pusher are both perpendicular to the rotation axis of the second joint relative to the first joint. The rotation axis of the first pusher relative to the shell assembly is perpendicular to the rotation axis of the second joint relative to the first pusher. The driver is used to drive the middle panel to rotate. The rotation axis of the middle panel is perpendicular to the rotation axis of the first joint relative to the fixed part. When the middle panel rotates, the second joint rotates relative to the first joint, causing the telescopic assembly to extend or shorten. When the driver drives the middle panel to rotate, the second joint rotates relative to the first joint, and simultaneously the first joint rotates relative to the fixed part, the second joint rotates relative to the first pusher, and the first pusher rotates relative to the shell assembly, thereby causing the telescopic assembly to reach an extended state. During the extension of the telescopic assembly, the second joint applies a pushing force to the shell assembly through the first pusher, thereby driving the shell assembly to rotate inward toward the middle panel. By driving the middle panel to rotate, the ends of the shell flap assemblies can be brought together. This drive assembly structure and its driving method are more flexible and simple, the capture mechanism is easier to control, and it has higher safety and reliability.

[0020] Preferably, the shell flap assembly includes a first panel and a second panel rotatably connected to the middle panel. The middle panel, the first panel, and the second panel are all regular pentagonal panels. One side of the first panel is rotatably connected to one side of the middle panel. The second panel is located on the first panel on the side opposite to the middle panel and is rotatably connected to the first panel. One side of the second panel is connected to a third panel in the shape of an isosceles triangle. The third panel is located on the second panel on the side opposite to the first panel. The first pusher is rotatably connected to the outer middle part of the first panel.

[0021] Furthermore, the telescopic assembly also includes a third joint, a fourth joint, and a second pusher. The third joint is rotatably connected to the fourth joint, and both are rotatably connected to the first pusher and the second pusher, respectively. The second pusher is rotatably connected to the outer center of the second panel. The rotation axis of the third joint relative to the first pusher and the rotation axis of the fourth joint relative to the second pusher are both perpendicular to the rotation axis of the fourth joint relative to the third joint. When the middle panel rotates, the first panel, the second panel, the third panel, and the middle panel can form a closed receiving cavity.

[0022] During the rotation of the middle panel, the first joint rotates relative to the fixed part, the first joint rotates relative to the second joint, the second joint rotates relative to the first pusher, and the first pusher rotates relative to the first panel, causing the telescopic component to extend. The first pusher then pushes the first panel to rotate towards the inside of the middle panel. Simultaneously, the third joint rotates relative to the first pusher, the third joint rotates relative to the fourth joint, the fourth joint rotates relative to the second pusher, and the second pusher rotates relative to the second panel, further extending the telescopic component. The second pusher then pushes the second panel towards the inside of the first panel. Finally, the waists of two adjacent third panels fit together, forming a closed cavity. The first, second, and middle panels are all pentagonal, making them easier to manufacture. Furthermore, the cavity formed by these panels has good sealing properties, effectively preventing dust, moisture, and other impurities from entering the simulated space debris and affecting its state, thereby improving the accuracy and reliability of the experiment.

[0023] Preferably, the outer sides of the middle panel, the first panel, the second panel, and the third panel are provided with multiple weight-reducing grooves, and a reinforcing rib is formed between adjacent weight-reducing grooves on the same panel. The reinforcing ribs can ensure that each panel has sufficient strength, while providing multiple weight-reducing grooves helps to reduce the weight of each panel, making the entire capture mechanism lighter.

[0024] The beneficial effects of this invention are:

[0025] (1) This experimental device can simulate the interaction and collision effect between space debris and the enclosed capture mechanism, which is beneficial to the research of the enclosed capture mechanism and the optimization of the capture plan.

[0026] (2) The test device has high test efficiency. The translation drive mechanism can drive the simulated space debris to move in two mutually perpendicular horizontal directions, and the rotation drive mechanism can drive the simulated space debris to rotate. The translation drive mechanism and the rotation drive mechanism have simple structures and are easy to operate, which is conducive to improving test efficiency.

[0027] (3) This test device is highly versatile. The containment cavity formed by the capture mechanism can contain simulated space debris of various shapes. Therefore, this test device can simulate the capture of space debris of different shapes, including sheet-like, rod-like, spherical, and other complex space debris.

[0028] (4) This test device has high safety and reliability. By driving the middle panel to rotate, the ends of the shell flaps can be moved away from or close to each other. The shell flaps are flexible and easy to control, which can improve the safety and reliability of the test. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a ground simulation test device for a wrap-around space debris capture mechanism.

[0030] Figure 2 This is a bottom schematic diagram of a ground simulation test device for a wraparound space debris capture mechanism;

[0031] Figure 3 This is a schematic diagram of the structure inside the middle panel and the shell flap assembly;

[0032] Figure 4 This is a schematic diagram of one of the views of the middle panel and the outer side of the shell assembly;

[0033] Figure 5 This is a schematic diagram showing the state when the ends of the shell flap assembly are far apart;

[0034] Figure 6 This is a schematic diagram showing the state when the ends of the shell flap assembly come together.

[0035] Figure 7 This is a structural diagram of the telescopic component;

[0036] Figure 8 This is a schematic diagram from another perspective of the capture mechanism;

[0037] Figure 9 This is a schematic diagram of the side structure of the capture mechanism.

[0038] In the attached diagram: 1-Frame; 101-Inner cavity; 2-Translation drive mechanism; 201-First electric push rod; 202-First slider; 203-Second electric push rod; 204-Second slider; 3-Rotation drive mechanism; 4-Hanging rod; 5-Intermediate panel; 6-Shell flap assembly; 601-First panel; 602-Second panel; 603-Third panel; 604-Weight reduction groove; 605-Reinforcing rib; 606-Receiving cavity; 7-Driver; 701-Fixing part; 8-Telescopic assembly; 801-First joint; 802-Second joint; 803-First pusher; 804-Third joint; 805-Fourth joint; 806-Second pusher; 9-Cast; 10-Simulated space debris. Detailed Implementation

[0039] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0040] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0042] Example 1

[0043] like Figures 1 to 6 The illustrated ground simulation test device for a wraparound space debris capture mechanism includes a frame 1 with an inner cavity 101, a capture mechanism located at the bottom of the inner cavity 101, a translational drive mechanism 2, and a rotational drive mechanism 3, both located at the top of the frame 1. The capture mechanism includes a drive assembly located at the bottom of the inner cavity 101, a central panel 5, and multiple shell flap assemblies 6 rotatably connected to the central panel 5. The drive assembly drives the shell flap assemblies 6 to rotate relative to the central panel 5, causing the ends of the shell flap assemblies 6 to move closer together or further apart. When the ends of the shell flap assemblies 6 move closer together, the shell flap assemblies 6 and the central panel 5 form a receiving cavity 606 for containing space debris. The power output end of the rotational drive mechanism 3 is connected to a boom 4, which is used to connect simulated space debris 10. The translational drive mechanism 2 drives the boom 4 to move horizontally.

[0044] Specifically, the translation drive mechanism 2 includes a first electric push rod 201 disposed on the top of the frame 1, the power output end of the first electric push rod 201 is connected to a first slider 202, and the rotation drive mechanism 3 is disposed on the first slider 202.

[0045] Furthermore, the translation drive mechanism 2 also includes two second electric push rods 203 disposed on the top of the frame 1. Each of the power output ends of the second electric push rods 203 is connected to a second slider 204. The two ends of the first electric push rod 201 are respectively connected to the power output ends of the two second electric push rods 203 through the two second sliders 204. The sliding directions of the second sliders 204 and the first slider 202 are perpendicular to each other.

[0046] Furthermore, the boom 4 is made of rubber. Such a boom 4 can effectively transmit the translation and rotation of the translation drive mechanism 2 and the rotation drive mechanism 3, while not causing too much compression to the ends of the shell flap assembly 6 when the ends of the shell flap assembly 6 come together.

[0047] The working principle or workflow of this embodiment is as follows: In the initial state, the ends of the shell flap assembly 6 are far apart, and the receiving cavity 606 has not yet been formed. First, the simulated space debris 10 is connected to the boom 4. The second electric push rod 203 pushes the second slider 204 and the first electric push rod 201 to move. Simultaneously, the first electric push rod 201 pushes the first slider 202 and the boom 4 to move, causing the simulated space debris 10 to move in two mutually perpendicular horizontal directions. This positions the simulated space debris 10 directly above the capture mechanism and within the area surrounded by the receiving cavity 606. Then, the rotation drive mechanism 3 drives the boom 4 to rotate, thereby causing the simulated space debris 10 to rotate. The moving component drives the ends of the shell flap assembly 6 to gradually approach each other. During the process of the ends of the shell flap assembly 6 gradually approaching each other, the first electric push rod 201 and the second electric push rod 202 can drive the hoist 4 to move so that the simulated space debris 10 collides with the inner side of the shell flap assembly 6, that is, collides with the inner wall of the receiving cavity 606, so as to simulate the collision between the simulated space debris 10 and the shell flap assembly 6. Finally, the shell flap assembly 6 and the middle panel 5 form the receiving cavity 606, which encloses the simulated space debris 10 in the receiving cavity 606, thus completing a simulated capture test.

[0048] It is understandable that the inner side of the middle panel 5 and the shell flap assembly 6 refers to the side where the receiving cavity 606 is located, and the outer side refers to the side opposite to the receiving cavity 606.

[0049] The beneficial effects of this embodiment:

[0050] (1) This experimental device can simulate the interaction and collision effect between space debris and the enclosed capture mechanism, which is beneficial to the research of the enclosed capture mechanism and the optimization of the capture plan.

[0051] (2) The test device has high test efficiency. The translation drive mechanism can drive the simulated space debris to move in two mutually perpendicular horizontal directions, and the rotation drive mechanism can drive the simulated space debris to rotate. The translation drive mechanism and the rotation drive mechanism have simple structures and are easy to operate, which is conducive to improving test efficiency.

[0052] (3) This test device is highly versatile. The containment cavity formed by the capture mechanism can contain simulated space debris of various shapes. Therefore, this test device can simulate the capture of space debris of different shapes, including sheet-like, rod-like, spherical, and other complex space debris.

[0053] Example 2

[0054] This embodiment is based on embodiment 1, combined with Figure 1 and Figure 2 As shown, casters 9 are provided at the four top corners of the bottom of the frame 1. The casters 9 make it easy to move the frame 1.

[0055] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1.

[0056] Example 3

[0057] This embodiment, based on Embodiment 2, provides a detailed description of the capture mechanism. For example... Figures 1 to 9 As shown, the flap assemblies 6 are circumferentially distributed on the middle panel 5. The drive assembly includes a driver 7 with a fixing part 701 and a telescopic assembly 8. One end of the telescopic assembly 8 is connected to the fixing part 701, and the other end is connected to the flap assemblies 6. The driver 7 is used to drive the telescopic assembly 8 to extend and retract. When the telescopic assembly 8 extends, the ends of the flap assemblies 6 move closer together; when the telescopic assembly 8 retracts, the ends of the flap assemblies 6 move further apart. It can be understood that when the telescopic assembly 8 extends, one end of the telescopic assembly 8 applies a thrust to the flap assemblies 6. This thrust can push the flap assemblies 6 to rotate towards the inside of the middle panel 5, thereby causing the ends of the flap assemblies 6 to move closer together, ultimately forming a receiving cavity 606 with the middle panel 5. Driving the ends of the flap assemblies 6 to move closer or further apart by extending and retracting the telescopic assembly 8 is a more flexible and safer driving method, and it also simplifies the structure of the entire capture mechanism.

[0058] Furthermore, the telescopic assembly 8 includes a first joint 801, a second joint 802, and a first pusher 803. The first joint 801 and the second joint 802 are rotatably connected, and both are rotatably connected to the fixed part 701 and the first pusher 803, respectively. The first pusher 803 is rotatably connected to the outside of the shell assembly 6. The rotation axis of the first joint 801 relative to the fixed part 701 and the rotation axis of the second joint 802 relative to the first pusher 803 are both perpendicular to the rotation axis of the second joint 802 relative to the first joint 801. The rotation axis of the first pusher 803 relative to the shell assembly 6 is perpendicular to the rotation axis of the second joint 802 relative to the first pusher 803. Furthermore, the driver 7 is a prior art motor, whose output shaft is connected to the middle of the outer side of the intermediate panel 5 for driving the intermediate panel 5 to rotate. The rotation axis of the intermediate panel 5 is perpendicular to the rotation axis of the first joint 801 relative to the fixed part 701. When the actuator 7 drives the middle panel 5 to rotate, the second joint 802 rotates relative to the first joint 801, while the first joint 801 rotates relative to the fixed part 701. The second joint 802 rotates relative to the first pusher 803, and the first pusher 803 rotates relative to the flap assembly 6, thereby extending the telescopic assembly 8. During the extension of the telescopic assembly 8, the second joint 802 applies a pushing force to the flap assembly 6 through the first pusher 803, thereby driving the flap assembly 6 to rotate inward toward the middle panel 5. By driving the middle panel 5 to rotate, the ends of the flap assemblies 6 can be brought closer together or moved further apart. This drive assembly structure and its driving method are more flexible and simple, the action of the capture mechanism is easier to control, and it has higher safety and reliability.

[0059] Furthermore, the shell flap assembly 6 includes a first panel 601 and a second panel 602 rotatably connected to the middle panel 5. The middle panel 5, the first panel 601, and the second panel 602 are all regular pentagonal panels. One side of the first panel 601 is rotatably connected to one side of the middle panel 5. The second panel 602 is located on the side of the first panel 601 opposite to the middle panel 5 and is rotatably connected to the first panel 601. One side of the second panel 602 is connected to a third panel 603 in the shape of an isosceles triangle. The third panel 603 is located on the side of the second panel 602 opposite to the first panel 601. The first pusher 803 is rotatably connected to the outer middle part of the first panel 601.

[0060] Furthermore, the telescopic assembly 8 also includes a third joint 804, a fourth joint 805, and a second pusher 806. The third joint 804 and the fourth joint 805 are rotatably connected, and both are rotatably connected to the first pusher 803 and the second pusher 806, respectively. The second pusher 806 is rotatably connected to the outer middle part of the second panel 602. The rotation axis of the third joint 804 relative to the first pusher 803 and the rotation axis of the fourth joint 805 relative to the second pusher 806 are both perpendicular to the rotation axis of the fourth joint 805 relative to the third joint 804. When the middle panel 5 rotates, the first panel 601, the second panel 602, the third panel 603, and the middle panel 5 can form a closed receiving cavity 606.

[0061] During the rotation of the middle panel 5, the first joint 801 rotates relative to the fixed part 701, the first joint 801 rotates relative to the second joint 802, the second joint 802 rotates relative to the first pusher 803, and the first pusher 803 rotates relative to the first panel 601, causing the telescopic component 8 to extend. The first pusher 803 pushes the first panel 601 to rotate towards the inside of the middle panel 5. At the same time, the third joint 804 rotates relative to the first pusher 803, the third joint 804 rotates relative to the fourth joint 805, the fourth joint 805 rotates relative to the second pusher 806, and the second pusher 806 rotates relative to the second panel 602, causing the telescopic component 8 to extend further. The second pusher 806 pushes the second panel 602 to rotate towards the inside of the first panel 601. Finally, the waists of the two adjacent third panels 603 fit together, thus forming a closed receiving cavity 606. The first panel 601, the second panel 602, and the middle panel 5 are all made into regular pentagonal panels, which makes them easier to manufacture and process. Furthermore, the cavity 606 formed by the first panel 601, the second panel 602, the third panel 603, and the middle panel 5 has good airtightness, which can effectively prevent dust, moisture, and other impurities from entering the simulated space debris 10 and affecting its state, thereby improving the accuracy and reliability of the test.

[0062] Furthermore, the outer sides of the middle panel 5, the first panel 601, the second panel 602, and the third panel 603 are each provided with multiple weight-reducing grooves 604, and a reinforcing rib 605 is formed between two adjacent weight-reducing grooves 604 on the same panel. The reinforcing rib 605 can ensure that each panel has sufficient strength, while providing multiple weight-reducing grooves 604 helps to reduce the weight of each panel, making the entire capture mechanism lighter.

[0063] Furthermore, the first joint 801, the second joint 802, the third joint 804, and the fourth joint 805 are all triangular, which provides greater stability, and each of them has a through cavity in the middle, which helps to reduce the weight of the capture mechanism.

[0064] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description, and it is neither necessary nor possible to exhaustively describe all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A ground simulation test device for a wraparound space debris capture mechanism, characterized in that, The device includes a frame (1) with an inner cavity (101), a capture mechanism disposed at the bottom of the inner cavity (101), a translation drive mechanism (2) and a rotation drive mechanism (3) both disposed on the frame (1); the capture mechanism includes a drive assembly disposed at the bottom of the inner cavity (101), an intermediate panel (5) and a plurality of shell flap assemblies (6) rotatably connected to the intermediate panel (5), the drive assembly is used to drive the shell flap assemblies (6) to rotate relative to the intermediate panel (5) so that the ends of the shell flap assemblies (6) approach each other or move away from each other, when the ends of the shell flap assemblies (6) approach each other, the shell flap assemblies (6) and the intermediate panel (5) form a receiving cavity (606) for accommodating space debris; the power output end of the rotation drive mechanism (3) is connected to a boom (4), the boom (4) is used to connect simulated space debris; the translation drive mechanism (2) is used to drive the boom (4) to move in the horizontal direction.

2. The ground simulation test device for a wraparound space debris capture mechanism according to claim 1, characterized in that, The translation drive mechanism (2) includes a first electric push rod (201) disposed on the top of the frame (1), the power output end of the first electric push rod (201) is connected to a first slider (202), and the rotation drive mechanism (3) is disposed on the first slider (202).

3. The ground simulation test device for a wraparound space debris capture mechanism according to claim 2, characterized in that, The translation drive mechanism (2) further includes a second electric push rod (203) disposed on the top of the frame (1). The power output end of the second electric push rod (203) is connected to a second slider (204). The first electric push rod (201) is connected to the power output end of the second electric push rod (203) through the second slider (204). The sliding directions of the second slider (204) and the first slider (202) are perpendicular to each other.

4. The ground simulation test device for a wraparound space debris capture mechanism according to claim 2, characterized in that, The rotary drive mechanism (3) includes a motor mounted on the first slider (202), and the output shaft of the motor is connected to one end of the boom (4).

5. The ground simulation test device for a wraparound space debris capture mechanism according to claim 1, characterized in that, The boom (4) is made of elastic material.

6. The ground simulation test device for a wraparound space debris capture mechanism according to claim 1, characterized in that, Casters (9) are provided at the four top corners of the bottom of the frame (1).

7. A ground simulation test device for a wraparound space debris capture mechanism according to any one of claims 1 to 6, characterized in that, The flap assembly (6) is circumferentially distributed on the middle panel (5); the driving assembly includes a driver (7) with a fixing part (701) and a telescopic assembly (8), one end of the telescopic assembly (8) is connected to the fixing part (701), and the other end is connected to the flap assembly (6); the driver (7) is used to drive the telescopic assembly (8) to extend and retract, when the telescopic assembly (8) extends, the ends of the flap assembly (6) move closer to each other, and when the telescopic assembly (8) shortens, the ends of the flap assembly (6) move further apart.

8. The ground simulation test device for a wraparound space debris capture mechanism according to claim 7, characterized in that, The telescopic assembly (8) includes a first joint (801), a second joint (802), and a first pusher (803). The first joint (801) is rotatably connected to the second joint (802), and both are rotatably connected to the fixed part (701) and the first pusher (803), respectively. The first pusher (803) is rotatably connected to the outside of the shell flap assembly (6). The rotation axis of the first joint (801) relative to the fixed part (701) and the rotation axis of the second joint (802) relative to the first pusher (803) are both perpendicular to the rotation axis of the second joint (802) relative to the first joint (801). The rotation axis of the first pusher (803) relative to the shell flap assembly (6) is perpendicular to the rotation axis of the second joint (802) relative to the first pusher (803). The driver (7) is used to drive the middle panel (5) to rotate. The rotation axis of the middle panel (5) is perpendicular to the rotation axis of the first joint (801) relative to the fixed part (701). When the middle panel (5) rotates, the second joint (802) rotates relative to the first joint (801) to extend or shorten the telescopic component (8).

9. A ground simulation test device for a wraparound space debris capture mechanism according to claim 8, characterized in that, The shell flap assembly (6) includes a first panel (601) and a second panel (602) rotatably connected to the middle panel (5). The middle panel (5), the first panel (601), and the second panel (602) are all regular pentagonal panels. One side of the first panel (601) is rotatably connected to one side of the middle panel (5). The second panel (602) is located on the side of the first panel (601) opposite to the middle panel (5) and is rotatably connected to the first panel (601). One side of the second panel (602) is connected to a third panel (603) in the shape of an isosceles triangle. The third panel (603) is located on the side of the second panel (602) opposite to the first panel (601). The first pusher (803) is rotatably connected to the outer middle part of the first panel (601). The telescopic assembly (8) further includes a third joint (804), a fourth joint (805), and a second pusher (806). The third joint (804) is rotatably connected to the fourth joint (805), and both are rotatably connected to the first pusher (803) and the second pusher (806), respectively. The second pusher (806) is rotatably connected to the outer middle of the second panel (602). The rotation axis of the third joint (804) relative to the first pusher (803) and the rotation axis of the fourth joint (805) relative to the second pusher (806) are both perpendicular to the rotation axis of the fourth joint (805) relative to the third joint (804). When the middle panel (5) rotates, the first panel (601), the second panel (602), the third panel (603), and the middle panel (5) can form a closed receiving cavity (606).

10. A ground simulation test device for a wraparound space debris capture mechanism according to claim 9, characterized in that, The outer sides of the middle panel (5), the first panel (601), the second panel (602) and the third panel (603) are provided with a plurality of weight-reducing grooves (604), and a reinforcing rib (605) is formed between two adjacent weight-reducing grooves (604) on the same panel.

Images