A single-axis rotation-driven wrapped space debris capture mechanism

Abstract

The present invention relates to the technical field of space debris capture equipment, and more specifically, to a single-axis rotationally driven wrapped space debris capture mechanism, which includes a drive assembly and a capture assembly. The capture assembly includes an intermediate panel, and a plurality of shell petal assemblies are rotatably connected to the intermediate panel. The drive assembly is used to drive the shell petal assembly to rotate relative to the intermediate panel so that the ends of the shell petal assembly move closer to or away from each other; when the ends of the shell petal assembly move closer to each other, a receiving cavity for accommodating space debris is formed between the shell petal assembly and the intermediate panel. The present invention overcomes the shortcomings of the prior art that complex structured space debris cannot be grasped, resulting in the failure of the capture mission. The drive assembly drives the shell petal assembly to close to form a receiving cavity. Since the receiving cavity can accommodate space debris of various shapes and sizes, regardless of the shape, size or surface characteristics of the space debris, the receiving cavity can successfully capture it, and has higher versatility and capture success rate.

Description

Technical Field

[0001] The present invention relates to the technical field of space debris capture equipment, and more particularly to a single-axis rotationally driven wrapped space debris capture mechanism. Background Art

[0002] A space debris capture mechanism is a device used to capture and clean up space debris such as satellites, rocket debris, and meteor fragments in space. Its main function is to prevent space debris from causing damage and danger to other spacecraft, personnel, and the Earth, and to protect the space environment and human safety.

[0003] Currently, the capture methods used by space debris capture systems mainly include robotic arm capture, harpoon capture, rope net capture, and flexible software capture. Among them, the robotic arm capture method uses a mechanical arm to grasp the debris. The harpoon capture method uses a harpoon to penetrate the debris and then pull it back to capture space debris. The flexible software capture method uses soft tentacles to grab space debris.

[0004] Using a robotic arm to capture space debris is a relatively common method. For example, the prior art discloses a device for embracing and capturing space debris. The device includes a spacecraft base and robotic arms evenly distributed on the spacecraft base and used to embrace space debris. The robotic arms are provided with force sensors, which are connected to a control unit in the spacecraft base to control the contraction of the robotic arms to embrace space debris.

[0005] However, firstly, space debris often comes from decommissioned satellites, rocket debris, etc. The shapes of these objects are very irregular and there are no fixed grasping points, which makes precise grasping difficult. Secondly, the surface of space debris may be corroded and deformed due to the long-term influence of the space environment, making it difficult for the robotic arm to form a stable grip. Thirdly, space debris moves at high speed in orbit and may spin or move irregularly, which requires the robotic arm to adjust its grasping strategy in real time, increasing the difficulty of grasping. In other words, the grasping method using a robotic arm is not suitable for grasping some space debris with complex structures, which may lead to the failure of the capture mission. Summary of the Invention

[0006] In response to the problem that the above-mentioned existing technologies are unable to grasp space debris with complex structures, resulting in the failure of the capture mission, the present invention provides a single-axis rotation-driven wrapping type space debris capture mechanism, which can form a accommodating cavity to surround the space debris in the accommodating cavity and is suitable for capturing space debris with various complex structures.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0008] A single-axis rotationally driven, wrapped space debris capture mechanism includes a drive assembly and a capture assembly. The capture assembly includes a middle panel, to which multiple petal assemblies are rotatably connected. The drive assembly is used to drive the petal assemblies to rotate relative to the middle panel, causing the distal ends of the petal assemblies to move toward or away from each other. When the distal ends of the petal assemblies move toward each other, a cavity for accommodating space debris is formed between the petal assembly and the middle panel. It is understood that the distal end of the petal assembly refers to the end of the petal assembly that is away from the middle panel.

[0009] In the above technical solution, in the initial state, the ends of the multiple shell petal assemblies are spaced apart from each other, and the shell petal assemblies are in an expanded state. When space debris approaches the inner side of the shell petal assemblies, the drive assembly drives the ends of the shell petal assemblies toward each other, causing the shell petal assemblies to close and form a accommodating cavity, thereby enclosing the space debris within the accommodating cavity and completing the capture of the space debris. Compared with robotic arms or other grasping tools that require precise docking or grasping of specific parts, the accommodating cavity can accommodate space debris of various shapes and sizes. Regardless of the shape, size, or surface characteristics of the space debris, the accommodating cavity can successfully capture it, thus having higher versatility and capture success rate.

[0010] It should be noted that the inner side of the shell valve assembly in this specification is defined as the side where the inner wall of the accommodating cavity is located, and the outer side is the side opposite to the inner wall of the accommodating cavity.

[0011] Preferably, the shell petal assemblies are distributed circumferentially on the middle panel, and the drive assembly includes a driver provided 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 shell petal assembly; the driver is used to drive the telescopic assembly to extend and retract, and when the telescopic assembly is extended, the ends of the shell petal assemblies move closer to each other, and when the telescopic assembly is shortened, the ends of the shell petal assemblies move away from each other. It can be understood that when the telescopic assembly is extended, one end of the telescopic assembly applies a thrust to the shell petal assembly, and the thrust can push the shell petal assembly to rotate toward the inner side of the middle panel, so that the ends of the shell petal assembly move closer to each other, and finally form a accommodating cavity with the middle panel. Driving the shell petal assembly to expand or close by the extension and retraction of the telescopic assembly is more flexible and safer, and is also conducive to simplifying the structure of the entire capture mechanism.

[0012] Preferably, the telescopic assembly includes a first joint, a second joint, and a first pusher, wherein the first joint and the second joint are rotationally connected and both are rotationally connected to the fixed portion and the first pusher, respectively, and the first pusher is rotationally connected to the outer side of the shell petal assembly; the rotation axis of the first joint relative to the fixed portion 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, and the rotation axis of the first pusher relative to the shell petal assembly is perpendicular to the rotation axis of the second joint relative to the first pusher; the driver is used to drive the intermediate panel to rotate, the rotation axis of the intermediate panel being perpendicular to the rotation axis of the first joint relative to the fixed portion, and when the intermediate panel rotates, the second joint rotates relative to the first joint to extend or shorten the telescopic assembly. When the driver drives the intermediate panel to rotate, the second joint rotates relative to the first joint, and at the same time, the first joint rotates relative to the fixed portion, the second joint rotates relative to the first pusher, and the first pusher rotates relative to the shell petal assembly, thereby causing the telescopic assembly to reach an extended state; during the extension of the telescopic assembly, the second joint applies a driving force to the shell petal assembly through the first pusher, thereby driving the shell petal assembly to rotate toward the inner side of the intermediate panel. By driving the middle panel to rotate, the ends of the shell petal assembly can be brought closer to each other. Such a drive assembly structure and its drive method are more flexible and simple, which not only helps to reduce the weight of the entire mechanism and reduce the manufacturing cost and maintenance cost of the mechanism, but also makes it easier to control the mechanism movement, making the task more smoothly.

[0013] Preferably, the shell petal 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 a side of the first panel 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 a side of the second panel opposite to the first panel; the first pushing member is rotatably connected to the middle portion of the outer side of the first panel;

[0014] Furthermore, the telescopic assembly also includes a third joint, a fourth joint and a second pushing member, the third joint is rotatably connected to the fourth joint and both are rotatably connected to the first pushing member and the second pushing member respectively; the second pushing member is rotatably connected to the middle part of the outer side of the second panel; the rotation axis of the third joint relative to the first pushing member and the rotation axis of the fourth joint relative to the second pushing member 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 accommodating cavity.

[0015] During the rotation of the middle panel, the first joint rotates relative to the fixed portion, 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, so that the telescopic assembly is extended, and the first panel is pushed to rotate toward the inner side of the middle panel by the first pusher; at the same time, 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, so that the telescopic assembly is further extended, and the second panel is pushed to rotate toward the inner side of the first panel by the second pusher, and finally the third panels are brought closer to each other. The first panel, the second panel, and the middle panel are unified into regular pentagonal panels, which are easier to produce and process, and the accommodating cavity surrounded by such first panel, second panel, third panel, and middle panel is better sealed, which can greatly reduce the probability of debris escaping the accommodating cavity.

[0016] Preferably, the outer sides of the middle panel, the first panel, the second panel, and the third panel are each provided with a plurality of weight-reducing grooves, with reinforcing ribs formed between adjacent weight-reducing grooves on the same panel. The reinforcing ribs ensure sufficient strength for each panel, while the provision of multiple weight-reducing grooves helps reduce the weight of each panel, making the entire capture mechanism even lighter.

[0017] Preferably, the third panel forms an angle of 105° to 120° with the second panel. It is understood that when the shell petal assembly is closed, the waist edges of two adjacent third panels abut against each other. This angle prevents the five third panels from forming a pointed tip extending into the containment cavity, preventing space debris from colliding with this tip and generating small secondary fragments that escape the containment cavity.

[0018] Preferably, the third panel is positioned at a 72° angle away from the second panel. When the third panel is positioned at a 72° angle away from the second panel, the five third panels form a flat, regular pentagon, which makes the shape of the entire containment cavity more uniform. This uniform shape makes the internal environment of the containment cavity and the capture process easier to simulate and analyze using computers, facilitating the prediction and optimization of the capture mechanism's performance during the design phase and facilitating real-time monitoring and adjustment of the capture process.

[0019] Preferably, the first joint, the second joint, the third joint and the fourth joint are all triangular in shape. Such joints have higher stability and strength and longer service life.

[0020] Preferably, the first joint, the second joint, the first pushing member, the third joint, the fourth joint and the second pushing member are all provided with through cavities, which is beneficial to further reduce the weight of the entire capture mechanism.

[0021] Preferably, the driver is a motor, with its output shaft perpendicular to the middle panel and connected to its outer side. Compared to other rotary actuators, motors have a simpler structure, lacking complex fluid or fuel systems. They have a lower failure rate and maintenance frequency, and offer greater reliability in the harsh space environment. Furthermore, motors can be easily integrated with electronic control systems, facilitating automation and high-precision remote control.

[0022] Beneficial effects of the present invention:

[0023] (1) The shell petal assembly is driven to close by the driving assembly to form a accommodating cavity, which can accommodate space debris of various shapes and sizes. Regardless of the shape, size or surface characteristics of the space debris, the accommodating cavity can successfully capture it, with higher versatility and capture success rate.

[0024] (2) After the shell petal assembly is closed, the accommodating cavity enclosed by the middle panel has a high degree of airtightness, and the captured space debris is not easy to escape.

[0025] (3) Only one driver is needed to rotate the middle panel to drive the shell petal assembly to close or unfold. The driving method is more flexible and simple, which not only helps to reduce the weight of the entire mechanism and reduce the manufacturing cost and maintenance cost of the mechanism, but also makes it easier to control the mechanism movement, making the task go more smoothly.

[0026] (4) The provision of multiple through cavities and weight-reducing grooves can make the entire mechanism lighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the inside of a single-axis rotationally driven, wrapped space debris capture mechanism;

[0028] Figure 2 This is a schematic diagram of one of the outer perspectives of a single-axis rotation-driven, wrapped space debris capture mechanism;

[0029] Figure 3 It is a structural diagram of the telescopic component;

[0030] Figure 4 This is a schematic diagram of another perspective on the outside of a single-axis rotation-driven wrapped space debris capture mechanism;

[0031] Figure 5 It is a schematic diagram of the side of a single-axis rotation-driven wrapped space debris capture mechanism;

[0032] Figure 6 It is a schematic diagram of the shell petal assembly of a single-axis rotationally driven wrapped space debris capture mechanism in a closed state;

[0033] Figure 7 It is a schematic diagram of the shell petal assembly of a single-axis rotationally driven wrapped space debris capture mechanism in the deployed state;

[0034] Figure 8 This is a schematic diagram of the shell petal assembly of a single-axis rotationally driven wrapped space debris capture mechanism during the closing process.

[0035] In the accompanying drawings: 1-middle panel; 2-shell petal assembly; 201-first panel; 202-second panel; 203-third panel; 204-weight-reducing groove; 205-reinforcement rib; 206-accommodating cavity; 3-driver; 301-fixing part; 4-telescopic assembly; 401-first joint; 4011-through cavity; 402-second joint; 403-first pushing member; 404-third joint; 405-fourth joint; 406-second pushing member; 5-space debris. DETAILED DESCRIPTION

[0036] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position 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, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0039] Example 1

[0040] Combine Figures 1 to 6 A single-axis rotationally driven, wrapped space debris capture mechanism is shown, comprising a drive assembly and a capture assembly. Specifically, the capture assembly comprises an intermediate panel 1, to which a plurality of petal assemblies 2 are rotatably connected. The drive assembly is used to drive the petal assemblies 2 to rotate relative to the intermediate panel 1 so that the ends of the petal assemblies 2 move toward or away from each other. When the ends of the petal assemblies 2 move toward each other, a cavity 206 for accommodating space debris 5 is formed between the petal assemblies 2 and the intermediate panel 1. It will be understood that the end of the petal assembly 2 refers to the end of the petal assembly 2 that is away from the intermediate panel 1.

[0041] Specifically, the shell petal assembly 2 is distributed in a circular shape on the middle panel 1, and the driving assembly includes a driver 3 provided with a fixed portion 301 and a telescopic assembly 4, one end of the telescopic assembly 4 is connected to the fixed portion 301, and the other end is connected to the outside of the shell petal assembly 2; the driver 3 is used to drive the telescopic assembly 4 to extend and retract, and when the telescopic assembly 4 is extended, the ends of the shell petal assembly 2 are brought closer to each other, and when the telescopic assembly 4 is shortened, the ends of the shell petal assembly 2 are moved away from each other. It can be understood that when the telescopic assembly 4 is extended, one end of the telescopic assembly 4 applies a thrust to the shell petal assembly 2, and the thrust can push the shell petal assembly 2 to rotate in the direction close to the inner side of the middle panel 1, so that the ends of the shell petal assembly 2 are brought closer to each other, and finally form a accommodating cavity 206 with the middle panel 1. The shell petal assembly 2 is driven to expand or close by the extension and retraction of the telescopic assembly 4. This driving method is more flexible and safe, and is also conducive to simplifying the structure of the entire capture mechanism.

[0042] It should be noted that, in this specification, the inner side of the shell valve assembly 2 is defined as the side where the inner wall of the accommodating cavity 206 is located, and the outer side is the side opposite to the inner wall of the accommodating cavity 206 .

[0043] Furthermore, the telescopic assembly 4 includes a first joint 401, a second joint 402 and a first pushing member 403. The first joint 401 is rotatably connected to the second joint 402 and both are rotatably connected to the fixing part 301 and the first pushing member 403 respectively. The first pushing member 403 is rotatably connected to the outside of the shell valve assembly 2; the rotation axis of the first joint 401 relative to the fixing part 301 and the rotation axis of the second joint 402 relative to the first pushing member 403 are both perpendicular to the rotation axis of the second joint 402 relative to the first joint 401, and the rotation axis of the first pushing member 403 relative to the shell valve assembly 2 is perpendicular to the rotation axis of the second joint 402 relative to the first pushing member 403; the driver 3 is used to drive the middle panel 1 to rotate, and the rotation axis of the middle panel 1 is perpendicular to the rotation axis of the first joint 401 relative to the fixing part 301. When the middle panel 1 rotates, the second joint 402 and the first joint 401 rotate relative to each other to cause the telescopic assembly 4 to extend or shorten. By driving the middle panel 1 to rotate, the ends of the shell valve assembly 2 can be brought closer to each other. Such a driving assembly structure and its driving method are more flexible and simple, which not only helps to reduce the weight of the entire mechanism and reduce the manufacturing cost and maintenance cost of the mechanism, but also makes it easier to control the mechanism movement, making the task more smoothly.

[0044] Furthermore, the shell petal assembly 2 includes a first panel 201 and a second panel 202 rotatably connected to the middle panel 1. The middle panel 1, the first panel 201, and the second panel 202 are all regular pentagonal panels. One side of the first panel 201 is rotatably connected to one side of the middle panel 1. The second panel 202 is located on a side of the first panel 201 opposite to the middle panel 1 and is rotatably connected to the first panel 201. One side of the second panel 202 is connected to a third panel 203 in the shape of an isosceles triangle. The third panel 203 is located on a side of the second panel 202 opposite to the first panel 201. The first pusher 403 is rotatably connected to the middle portion of the outer side of the first panel 201.

[0045] Furthermore, the telescopic assembly 4 also includes a third joint 404, a fourth joint 405 and a second pusher 406. The third joint 404 is rotatably connected to the fourth joint 405 and both are rotatably connected to the first pusher 403 and the second pusher 406 respectively; the second pusher 406 is rotatably connected to the middle part of the outer side of the second panel 202; the rotation axis of the third joint 404 relative to the first pusher 403 and the rotation axis of the fourth joint 405 relative to the second pusher 406 are both perpendicular to the rotation axis of the fourth joint 405 relative to the third joint 404; when the middle panel 1 rotates, the first panel 201, the second panel 202, the third panel 203 and the middle panel 1 can form a closed accommodating cavity 206. The first panel 201, the second panel 202 and the middle panel 1 are unified into regular pentagonal panels, which are easier to produce and process. In addition, the accommodating cavity 206 surrounded by such first panel 201, the second panel 202, the third panel 203 and the middle panel 1 has good sealing performance, which can greatly reduce the probability of fragments 5 escaping from the accommodating cavity 206.

[0046] Specifically, driver 3 is a motor, whose output shaft is perpendicular to center panel 1 and connected to the center portion of its outer side. Compared to other rotary actuators, motors have a simpler structure, lacking complex fluid or fuel systems. This reduces the failure rate and maintenance frequency, and enhances reliability in the harsh space environment. Furthermore, motors can be easily integrated with electronic control systems, facilitating automation and high-precision remote control.

[0047] Combine Figure 2 、 Figures 6 to 8 As shown, the working principle or workflow of this embodiment is as follows:

[0048] In the initial state, the shell petal assemblies 2 are all in the unfolded state, and the middle panel 1, the first panel 201 and the second panel 202 are all located on the same plane; while the first joint 401 and the second joint 402 are in the folded state, and the third joint 404 and the fourth joint 405 are in the folded state, that is, the telescopic assembly 4 is in the contracted state, at this time the first joint 401, the second joint 402, the first pushing member 403, the third joint 404, the fourth joint 405 and the second pushing member 406 are all located on the same plane.

[0049] When the space debris 5 approaches the inner side of the shell petal assembly 2, the driver 3 drives the middle panel 1 to rotate. During the rotation of the middle panel 1, the second joint 402 rotates relative to the first joint 401. At the same time, the first joint 401 rotates relative to the fixed part 301, and the second joint 402 rotates relative to the first pushing member 403, thereby extending the telescopic assembly 4. During the extension of the telescopic assembly 4, the second joint 402 applies a pushing force to the first panel 201 through the first pushing member 403, thereby driving the first panel 201 to rotate relative to the middle panel 1 and the inner side of the first panel 201 approaches the inner side of the middle panel 1. During the rotation of the first panel 201 relative to the middle panel 1, the third joint 404 rotates relative to the fourth joint 405. Simultaneously, the third joint 404 rotates relative to the first pusher 403, and the fourth joint 405 rotates relative to the second pusher 406, thereby further extending the telescopic assembly 4. During the further extension of the second telescopic assembly 4, the fourth joint 405 applies a driving force to the second panel 202 via the second pusher 406, thereby driving the second panel 202 to rotate relative to the first panel 201 and the inner side of the second panel 202 to approach the inner side of the first panel 201. As the middle panel 1 rotates, the shell petal assembly 2 gradually bends and arches, and the third panels 203 move closer to each other. Ultimately, the shell petal assembly 2 and the middle panel form a closed accommodating cavity 206, thereby enclosing the space debris 5 within the accommodating cavity 206.

[0050] Beneficial effects of this embodiment:

[0051] (1) The shell petal assembly is driven to close by the driving assembly to form a accommodating cavity, which can accommodate space debris of various shapes and sizes. Regardless of the shape, size or surface characteristics of the space debris, the accommodating cavity can successfully capture it, with higher versatility and capture success rate.

[0052] (2) After the shell petal assembly is closed, the accommodating cavity enclosed by the middle panel has a high degree of airtightness, and the captured space debris is not easy to escape.

[0053] (3) Only one driver is needed to rotate the middle panel to drive the shell petal assembly to close or unfold. The driving method is more flexible and simple, which not only helps to reduce the weight of the entire mechanism and reduce the manufacturing cost and maintenance cost of the mechanism, but also makes it easier to control the mechanism movement, making the task go more smoothly.

[0054] Example 2

[0055] This embodiment further explains the third panel 203 based on the embodiment. Figure 2 and Figure 5As shown, the third panel 203 forms an angle of approximately 108° with the second panel 202. It will be appreciated that when the shell petal assembly 2 is closed, the waist edges of two adjacent third panels 203 abut against each other. This angle prevents the five third panels 203 from forming a pointed tip extending into the accommodation cavity 206, thus preventing the space debris 5 from colliding with this pointed tip and generating small secondary debris 5 that escape the accommodation cavity 206.

[0056] Furthermore, the third panel 203 is angled 72° away from the second panel 202. When the third panel 203 is angled 72° away from the second panel 202, the five third panels 203 form a flat regular pentagon, which makes the shape of the entire receiving cavity 206 more uniform. The uniform shape of the receiving cavity 206 makes the internal environment and the capture process easier to simulate and analyze using computers, facilitating the prediction and optimization of the capture mechanism's performance during the design phase and facilitating real-time monitoring and adjustment of the capture process.

[0057] Other features, working principles and beneficial effects of this embodiment are consistent with those of embodiment 1.

[0058] Example 3

[0059] This embodiment is based on the embodiment. Figures 2 to 4 As shown, the outer sides of the middle panel 1, the first panel 201, the second panel 202, and the third panel 203 are each provided with a plurality of weight-reducing grooves 204. Reinforcing ribs 205 are formed between adjacent weight-reducing grooves 204 on the same panel. The reinforcing ribs 205 ensure sufficient strength for each panel, while the provision of multiple weight-reducing grooves 204 helps reduce the weight of each panel, making the entire capture mechanism even more lightweight.

[0060] Furthermore, the first joint 401 , the second joint 402 , the third joint 404 and the fourth joint 405 are all triangular in shape. Such joints have higher stability and strength and a longer service life.

[0061] Furthermore, through cavities are provided on the first joint 401, the second joint 402, the first pusher 403, the third joint 404, the fourth joint 405 and the second pusher 406. Providing the through cavities is beneficial to further reduce the weight of the entire capture mechanism.

[0062] Other features, working principles and beneficial effects of this embodiment are consistent with those of Example 2.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description, and it is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A single-axis rotary drive wrapped space debris capture mechanism, characterized in that: The invention comprises a driving component and a capturing component, wherein the capturing component comprises an intermediate panel (1), a plurality of shell petal components (2) being rotatably connected to the intermediate panel (1), and the driving component is used to drive the shell petal components (2) to rotate relative to the intermediate panel (1) so that the ends of the shell petal components (2) move closer to or farther away from each other; when the ends of the shell petal components (2) move closer to each other, a receiving cavity (206) for receiving space debris is formed between the shell petal components (2) and the intermediate panel (1); The shell petal assemblies (2) are circumferentially distributed on the middle panel (1); the driving assembly comprises a driver (3) provided with a fixed portion (301) and a telescopic assembly (4), one end of the telescopic assembly (4) is connected to the fixed portion (301), and the other end is connected to the shell petal assemblies (2); the driver (3) is used to drive the telescopic assembly (4) to telescope, and when the telescopic assembly (4) is extended, the ends of the shell petal assemblies (2) move closer to each other, and when the telescopic assembly (4) is shortened, the ends of the shell petal assemblies (2) move away from each other; The telescopic assembly (4) comprises a first joint (401), a second joint (402) and a first pusher (403); the first joint (401) and the second joint (402) are rotationally connected and are rotationally connected to the fixing portion (301) and the first pusher (403) respectively; the first pusher (403) is rotationally connected to the outer side of the shell petal assembly (2); the rotation axis of the first joint (401) relative to the fixing portion (301) and the rotation axis of the second joint (402) relative to the first pusher (403) are both perpendicular to the rotation axis of the second joint (402) relative to the first joint (401); the rotation axis of the first pusher (403) relative to the shell petal assembly (2) is perpendicular to the rotation axis of the second joint (402) relative to the first pusher (403); The driver (3) is used to drive the middle panel (1) to rotate, the rotation axis of the middle panel (1) being perpendicular to the rotation axis of the first joint (401) relative to the fixing portion (301), and when the middle panel (1) rotates, the second joint (402) rotates relative to the first joint (401) to extend or shorten the telescopic assembly (4); The shell petal assembly (2) comprises a first panel (201) and a second panel (202) rotatably connected to the middle panel (1); the middle panel (1), the first panel (201) and the second panel (202) are all regular pentagonal panels; one side of the first panel (201) is rotatably connected to one side of the middle panel (1); the second panel (202) is located on a side of the first panel (201) opposite to the middle panel (1) and is rotatably connected to the first panel (201); one side of the second panel (202) is connected to a third panel (203) in the shape of an isosceles triangle; the third panel (203) is located on a side of the second panel (202) opposite to the first panel (201); the first pusher (403) is rotatably connected to the middle portion of the outer side of the first panel (201); The telescopic assembly (4) further comprises a third joint (404), a fourth joint (405) and a second pusher (406), wherein the third joint (404) is rotatably connected to the fourth joint (405) and both are rotatably connected to the first pusher (403) and the second pusher (406) respectively; the second pusher (406) is rotatably connected to the middle portion of the outer side of the second panel (202); the rotation axis of the third joint (404) relative to the first pusher (403) and the rotation axis of the fourth joint (405) relative to the second pusher (406) are both perpendicular to the rotation axis of the fourth joint (405) relative to the third joint (404); when the middle panel (1) rotates, the first panel (201), the second panel (202) and the third panel (203) and the middle panel (1) can enclose the closed accommodating cavity (206).

2. The single-axis rotation-driven wrapped space debris capture mechanism according to claim 1, characterized in that: The outer sides of the middle panel (1), the first panel (201), the second panel (202) and the third panel (203) are each provided with a plurality of weight-reducing grooves (204), and reinforcing ribs (205) are formed between two adjacent weight-reducing grooves (204) on the same panel.

3. The single-axis rotation-driven wrapped space debris capture mechanism according to claim 1, characterized in that: An included angle of 105° to 120° is formed between the third panel (203) and the second panel (202).

4. The single-axis rotation-driven wrapped space debris capture mechanism according to claim 1, characterized in that: The third panel (203) is at a top angle of 72° away from the second panel (202).

5. The single-axis rotation-driven wrapped space debris capture mechanism according to claim 1, characterized in that: The first joint (401), the second joint (402), the third joint (404) and the fourth joint (405) are all triangular in shape.

6. The single-axis rotation-driven wrapped space debris capture mechanism according to claim 5, characterized in that: A through cavity (4011) is provided on the first joint (401), the second joint (402), the first pushing member (403), the third joint (404), the fourth joint (405) and the second pushing member (406).

7. A single-axis rotationally driven wrapped space debris capture mechanism according to any one of claims 1 to 6, characterized in that: The driver (3) is a motor, and the output shaft of the driver (3) is perpendicular to the middle panel (1) and connected to the outer side of the middle panel (1).

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