A self-spinning rope netting structure and method of stowing

Abstract

This invention relates to a spin-type net structure and a method for its collection and launch. It includes a net, a collection bag, and a net clamping and releasing mechanism. The net is spiderweb-shaped, comprising a circular central mesh, m layers of regular n-sided main ropes, and 2n radially distributed ropes evenly connected to the multiple main ropes and the circular central mesh. The radial ropes connecting the vertices of the regular n-sided ropes extend to the outermost main rope, which serves as a traction rope, and the outermost end of the traction rope connects to a traction body. The collection bag is cylindrical, comprising a bag body, annular partitions, receiving slots, and receiving slot separators. The annular partitions consist of 2m layers from the outside in. Each annular partition is evenly divided into 2n receiving slots by multiple receiving slot separators. The receiving slots of adjacent annular partitions are staggered at an angle of 5° to 10°, and the staggered direction from the inside out is clockwise or counterclockwise, thereby causing the launched net to spin and unfold. This invention can effectively capture space debris or malfunctioning spacecraft.

Description

Technical Field

[0001] This invention belongs to the field of space debris capture nets, specifically relating to a spin net structure and a method for receiving and launching it. Background Technology

[0002] Due to the rapid development of the aerospace field in recent years, countries have launched more and more spacecraft to explore space. Among them, the spacecraft that fail cannot be recovered autonomously. Leaving them in orbit not only occupies space, but may also collide with other spacecraft, thus generating more space debris. With the continuous "proliferation" of space debris, countries must pay attention to and control the growth of space debris.

[0003] Using netting for space debris capture has become a hot topic in recent years. The shape of the net, the structure of the net bag, and the methods of net storage and launch all affect the capture of space debris. Regular square and regular hexagonal net structures are the main types of net structures studied both domestically and internationally to date. Compared to the square, the regular hexagon has a larger effective distance and a larger unfolded area. The net initially lies in a stored state; during capture, it unfolds under the action of a traction device, thereby capturing and removing the space debris. Currently, the most mature netting folding method is a "W" shape, which has the disadvantage of being prone to tangling during rotation. Summary of the Invention

[0004] The purpose of this invention is to provide a spin rope net structure and a method for storing and launching it.

[0005] The technical solution to achieve the purpose of this invention is: a self-spinning rope net bag structure, including a rope net, a storage bag, and a net bag compression and release mechanism;

[0006] The rope net is spider web shaped, including a circular central mesh, m layers of regular n-sided main ropes, and 2n radially distributed ropes that connect the multiple layers of main ropes and the circular central mesh. The radial ropes connecting the vertices of the regular n-sided ropes extend to the outermost main rope, which is the traction rope. The outermost end of the traction rope is connected to the traction body.

[0007] The storage bag is cylindrical and includes a bag body, annular partitions, receiving slots, and receiving slot dividers. The annular partitions consist of 2m layers from the outside to the inside. Each annular partition is evenly divided into 2n receiving slots by multiple receiving slot dividers. The receiving slots of adjacent annular partitions are staggered at an angle of 5° to 10°, and the staggered direction from the inside to the outside is clockwise or counterclockwise, thereby causing the launched rope net to spin and unfold.

[0008] The net bag clamping and releasing mechanism is used to clamp and release storage bags containing rope nets.

[0009] Furthermore, the main rope is a regular hexagon, i.e., n = 6.

[0010] Furthermore, the main rope has 3 layers from the outside to the inside, i.e., m=3.

[0011] Furthermore, the radial rope connecting the midpoint of the main rope side and the circular center net in the rope net is the connecting rope.

[0012] Furthermore, the storage bag also includes a positioning inner tube and a positioning rope;

[0013] The positioning inner tube is set inside the innermost layer of the package and is fixed to the package by multiple sets of positioning ropes evenly grouped in the circumferential direction. Each set of positioning ropes includes two ropes, one at the top and one at the bottom.

[0014] Furthermore, it also includes multiple L-shaped rope-pressing rods;

[0015] After the circular center mesh of the rope net is fitted onto the positioning inner cylinder, a rope pressing bar is used to pass through the two opposite lightening grooves of the positioning inner cylinder to press down the rope net.

[0016] Furthermore, the net bag clamping and releasing mechanism includes a clamping cloth, a clamping rod, a cutter, and a connecting rod;

[0017] The pressing cloth has pressing rods at both ends, and a threaded hole in the middle of the pressing rods that mates with the connecting rod. The two pressing rods are connected as one unit by the connecting rod. When the net bag is to be unfolded, the cutter cuts the connecting rod, causing the pressing cloth to lose its pressing effect.

[0018] A method for launching and storing a rope net based on the above-mentioned spin rope net structure includes the following steps:

[0019] Step (1): Connect the package body to the positioning inner cylinder, and use a rope-pressing bar to pass through the two opposite lightening slots of the positioning inner cylinder to press down the rope net;

[0020] Step (2): Use a rope winding board to wind the twelve radial ropes in the innermost hexagonal main rope in sequence. Use a rope pressing stick to press the wound rope strands into the receiving groove of the innermost annular partition. After the first layer of radial ropes is collected, the innermost layer, i.e. the first layer of hexagonal main rope, forms twelve elliptical rope loops. Then use the rope winding board and rope pressing stick to collect them into the receiving groove of the adjacent annular partition in sequence. After completion, start collecting the radial ropes between the first and second layers of hexagonal main ropes, the second layer of hexagonal main ropes, the radial ropes between the second and third layers of hexagonal main ropes, and the third layer of hexagonal main ropes until the rope net is completely collected into the storage bag.

[0021] Step (3): After the rope net is completely put into the receiving groove, wrap the cylindrical side of the bag body with a pressing cloth. The pressing cloth has pressing rods at both ends, and the two pressing rods are connected by a connecting rod.

[0022] Step (4): When the net bag is about to unfold, the cutter cuts the connecting rod so that the clamping cloth loses its clamping effect; when the rope net is unfolded by the traction body, the traction body is launched and carries six traction ropes to gradually stretch the rope net from the outside to the inside. After the rope net is fully unfolded, the traction body finally drives the traction ropes to move, thereby realizing the unfolding of the rope net.

[0023] Compared with the prior art, the significant advantages of this invention are:

[0024] (1) This invention proposes a method for storing rope nets. The rope nets are stored in sequence from the inside to the outside and from the radial ropes to the hexagonal main ropes. This allows the traction body to be pulled out layer by layer in sequence, effectively preventing the rope nets from getting tangled during the pulling process. The use of a rope winding board and a rope pressing rod can ensure that each rope loop formed by winding is of the same size. This not only keeps the nets neat after storage but also allows the rope nets to be completely stored in the storage slot. Furthermore, the rope nets are subjected to uniform force when unfolded, making them less prone to tangling.

[0025] (2) The storage bag of the present invention adopts a spin structure. The traditional storage net bag adopts a regular cylindrical shaft structure, that is, the radial receiving groove separation layers are arranged on the same radial straight line. However, the net bag adopts a spin structure considering the rotation of the turntable below when the net is unfolded. The radial receiving groove separation cloth between each two layers forms an angle, so that the net bag can be smoothly unfolded by spin.

[0026] (3) The net of this invention adopts a hexagonal spider web shape, which is different from the traditional hexagonal rope net structure. This patent adds radial ropes in the middle of the hexagonal side length. The advantage of this net is that it can evenly disperse the impact force generated by capturing space debris, making the net more durable.

[0027] (4) The present invention uses a clamping tool. Traditional net bags do not have a clamping tool, and the ropes inside the net bag are easily thrown out before unfolding when rotating at high speed. However, after using a clamping tool, the ropes are not easily thrown out. Attached Figure Description

[0028] Figure 1 A schematic diagram of the unfolded structure of a storage bag made of a rope net for space capture.

[0029] Figure 2 This is a top view of the spin net structure.

[0030] Figure 3 This is a diagram of the inner cylinder structure of the mesh bag.

[0031] Figure 4 This is a schematic diagram of the rope winding method.

[0032] Figure 5 This is a schematic diagram of the rope-pressing rod structure.

[0033] Figure 6 Schematic diagram of the clamping cloth and clamping rod.

[0034] Figure 7 Diagram showing the clamping of the mesh bag.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Pack body, 2-Positioning rope, 3-Annular partition, 4-Receiving groove, 5-Receiving groove divider cloth, 6-Positioning inner cylinder, 7-Main rope, 8-Connecting rope, 9-Traction rope, 10-Traction body, 11-Circular central mesh, 12-Rope winding plate, 13-Rope pressing rod, 14-Pressure cloth, 15-Pressure rod, 16-Cuter, 17-Connecting rod. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings.

[0038] This invention describes a spatially rotating unfolding rope net and a method for storing the rope net. The solution comprises a rope net, a storage bag, storage tools, and a clamping tool. The storage includes a bag body 1, a positioning rope 2, an annular partition 3, a receiving groove 4, a receiving groove divider cloth 5, and a positioning inner cylinder 6. The overall appearance of the rope net is hexagonal spiderweb-like, comprising three layers of hexagonal main ropes 7 from the inside out, three layers of radial ropes divided by the three layers of hexagonal main ropes, a traction body 10, and a circular central mesh 11. The net-collecting tool includes a rope-winding plate 12 and an L-shaped rope-pressing rod 13. The clamping tool includes a clamping cloth 14, a clamping rod 15, a cutter 16, and a connecting rod 17.

[0039] The rope net is a regular polygon with n sides. The main rope is m layers from the inside out, where m = 3. To match the storage bag with the rope net, there are 2m ring-shaped partitions 3 from the inside out, i.e., six ring-shaped partitions 3. Each layer is divided into 2n storage slots 4 by the storage slot partition cloth 5, i.e., 12 storage slots 4, which correspond one-to-one with the rope net. There are four positioning rope binding points and positioning ropes 2 on the surface of the net bag that are in contact with the positioning inner cylinder 6 for fixing the net bag and the positioning inner cylinder 6. In addition, the net bag adopts a self-spinning structure, that is, the storage slot partition cloth 5 between adjacent ring-shaped partitions 3 forms an angle of 5° to 10° to adapt to the self-spinning unfolding of the rope net.

[0040] When preparing the rope net, first make a circular central mesh 11, then use a measuring tape to measure out twelve radial ropes and three hexagonal main ropes 7. Tie the ends of the three main ropes 7 together and arrange them according to the hexagonal spider web structure diagram. Next, tie the six short radial ropes as connecting ropes 8 to the middle of the six sides of the hexagon and tie the six long radial ropes as traction ropes 9 to the six corners of the hexagon. Attach the traction body 10 to the end. Then, tie the radial ropes 8 to the first and second layers of main ropes 7 in sequence from the outside to the inside, according to the third layer of main ropes 7. Finally, tie the other end of the twelve radial ropes 8 to the circular central mesh 12.

[0041] The specific method for storing the rope net in the bag is as follows: The operator first connects the bag body 1 to the positioning inner cylinder 6, that is, aligns the positioning rope 2 knots (two at the top and two at the bottom) on the net bag with the light-reducing slots in the positioning inner cylinder 6, and then uses the positioning rope 2 to tie a knot. Then, the circular center mesh 11 of the rope net is placed on the positioning inner cylinder 6. To prevent the circular center mesh 11 from detaching from the positioning inner cylinder 6 during the subsequent net-closing process, a rope-pressing rod 13 can be used to pass through the two opposite light-reducing slots in the positioning inner cylinder 6 to press down the rope net. Next, use the rope winding board 12 to wind the twelve radial ropes in the first layer of hexagonal main rope in sequence. Use the rope pressing rod 13 to press the wound rope strands into the inner layer receiving groove 4. After the first layer of radial ropes is collected, it will be found that the first layer of hexagonal main rope 7 will form twelve elliptical rope loops. Following the previous method, use the rope winding board 12 and the rope pressing rod 13 to collect them into the corresponding layer of net bag receiving groove 4 in sequence. After completion, start collecting the radial ropes between the second and third layers of hexagonal main ropes, and so on, until the rope net is completely collected into the bag body 1.

[0042] After the netting is fully contained in the net bag receiving slot 4, the cylindrical side of the bag body 1 is wrapped with a clamping cloth 14. The clamping cloth 14 has clamping rods 15 at both ends, and a threaded hole is provided in the middle of the clamping rod. The clamping rods 15 are threadedly connected to the connecting rods 17. When the net bag is to be unfolded, the cutter 16 cuts the connecting rods 17, causing the clamping cloth 14 to lose its clamping effect.

[0043] The rope is sequentially wound into the receiving slots 4 of each layer of the net bag, from the inside out, from the radial rope to the main rope, one loop at a time. When the rope net is unfolded by the traction body 10, the traction body 10, after being launched, gradually stretches the rope net from the outside in with the six traction ropes 9. During the above process, the rope net and the traction ropes 9 will not be affected. After the rope net is fully unfolded, the traction body 10 finally drives the movement of the traction ropes 9, thereby realizing the unfolding of the rope net. During the entire unfolding process, the traction ropes 9 and the rope net are not prone to tangling, thus ensuring the effectiveness of the unfolding.

Claims

1. A self-spinning rope net structure, characterized in that, Includes a rope net, a storage bag, and a net bag clamping and releasing mechanism; The rope net is spider web shaped, including a circular central mesh (11), m layers of regular n-sided main ropes (7), and 2n radial ropes evenly distributed around the perimeter that connect the multiple layers of main ropes and the circular central mesh (11). The radial rope connecting the vertices of the regular n-sided ropes extends to the outermost main rope as a traction rope, and the outermost end of the traction rope is connected to the traction body (10). The storage bag is cylindrical and includes a bag body (1), an annular partition (3), a receiving slot (4), and a receiving slot divider cloth (5). The annular partition (3) consists of 2m layers from the outside to the inside. Each annular partition (3) is evenly divided into 2n receiving slots by multiple receiving slot divider cloths (5). The receiving slots of adjacent annular partitions (3) are staggered at an angle of 5° to 10° and the staggered direction from the inside to the outside is clockwise or counterclockwise, so that the launched rope net can spin and unfold. The net bag clamping and releasing mechanism is used to clamp and release storage bags containing rope nets; The storage bag also includes a positioning inner tube (6) and positioning ropes (2); the positioning inner tube (6) is set in the innermost layer of the bag body (1) and is fixed to the bag body by multiple sets of positioning ropes (2) evenly grouped in the circumferential direction, each set of positioning ropes (2) includes two, one above and one below. It also includes multiple L-shaped rope pressing rods (13); after the circular center mesh (11) of the rope net is fitted onto the positioning inner cylinder (6), the rope pressing rods (13) are used to pass through the two opposite relief grooves of the positioning inner cylinder (6) to press down the rope net; The net bag clamping and releasing mechanism includes a clamping cloth (14), a clamping rod (15), a cutter (16), and a connecting rod (17); The pressing cloth (14) is provided with pressing rods (15) at both ends. The pressing rods (15) are provided with threaded holes that cooperate with connecting rods (17) in the middle position. The two pressing rods (15) are connected into one unit through connecting rods (17). When the net bag is to be unfolded, the cutter (16) cuts the connecting rods (17) so that the pressing cloth (14) loses its pressing effect.

2. The spin rope netting structure according to claim 1, characterized in that, The main rope (7) is a regular hexagon, i.e., n = 6.

3. The spin rope netting structure according to claim 1, characterized in that, The main rope (7) has 3 layers from the outside to the inside, i.e., m = 3.

4. The spin rope netting structure according to claim 1, characterized in that, The radial rope connecting the midpoint of the main rope side and the circular center mesh (11) in the rope net is the connecting rope (8).

5. A method for receiving and launching a rope net based on the spin rope net structure according to any one of claims 1-4, characterized in that, Includes the following steps: Step (1): Connect the package body (1) to the positioning inner cylinder (6), and use the rope pressing bar (13) to pass through the two opposite lightening slots of the positioning inner cylinder (6) to press down the rope net; Step (2): Use the rope winding board (12) to wind the twelve radial ropes in the innermost hexagonal main rope in sequence. Use the rope pressing rod (13) to press the wound rope strands into the receiving groove (4) of the innermost annular partition (3). After the first layer of radial ropes is collected, the innermost layer, i.e. the first layer of hexagonal main rope (7), forms twelve elliptical rope loops. Then use the rope winding board (12) and the rope pressing rod (13) to collect them into the receiving groove (4) of the adjacent annular partition in sequence. After completion, start collecting the radial ropes between the first and second layers of hexagonal main ropes, the second layer of hexagonal main ropes, the radial ropes between the second and third layers of hexagonal main ropes, and the third layer of hexagonal main ropes until the rope net is completely collected into the storage bag. Step (3): After the rope net is completely put into the receiving groove (4), use the pressing cloth (14) to wrap the cylindrical side of the package (1). The pressing cloth (14) has pressing rods (15) at both ends, and the two pressing rods (15) are connected by connecting rods (17). Step (4): When the net is about to unfold, the cutter (16) cuts the connecting rod (17) so that the pressing cloth (14) loses its pressing effect; when the rope net is unfolded by the traction body (10), the traction body (10) is launched and carries six traction ropes (9) to gradually stretch the rope net from the outside to the inside. After the rope net is fully unfolded, the traction body (10) finally drives the traction ropes (9) to move, thereby realizing the unfolding of the rope net.

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