Hexagonal space rope net capable of being closed up and weaving method

Abstract

The invention discloses a hexagonal space rope net capable of being closed up and a weaving method, and relates to the field of tools for cosmic space. The hexagonal space rope net capable of being closed up comprises a regular hexagonal bottom frame rope, a regular hexagonal inner frame rope, three reinforcing ropes, six traction ropes, a mooring rope, six closing-up ropes and closing-up rope rings connected to the bottom frame rope at intervals. The middle portions of the three reinforcing ropes are connected to form a space rope net center, the two ends of each reinforcing rope are connected with the two vertexes of the inner frame rope and the two vertexes of the bottom frame rope respectively, and the inner frame rope and the reinforcing ropes define six equilateral triangle areas with dense meshes. The bottom frame rope, the inner frame rope and the reinforcing ropes are enclosed to form six antiparallelogram areas in which sparse meshes are arranged; the six closing ropes penetrate through the closing rope rings connected to the six sides of the bottom frame rope respectively, the two ends of each reinforcing rope are connected with the pulling ropes respectively, and the mooring rope is connected with the center of the space rope net. According to the hexagonal space rope net capable of being closed up and the weaving method, the space net ropes can be stored and unfolded in order and can be dragged.

Description

Technical Field

[0001] The present application relates to the field of tools for outer space, and in particular to a closeable hexagonal space rope net and a weaving method thereof. Background Art

[0002] The space rope net is a flexible mesh tool used for capturing objects in outer space. It has the advantages of good adaptability to targets and high safety. The reason is that the flexible load in the form of a rope net does not need to be aligned with a specific capture position, but rather a space coverage capture. It has large error redundancy and is insensitive to collisions and impacts. Mild collisions and impacts will not cause large-scale instability of the system, making it particularly suitable for capturing and removing space debris. In addition, the space rope net is also suitable for large-scale debris targets in high, medium, and low orbits. It has strong operability, relatively mature technology, and is easy to implement in engineering. It is currently the preferred technical approach for implementing space debris removal.

[0003] The space rope net uses a specific weaving method to connect the flexible ropes from point to surface into a whole, and under the traction of the launch device, it is used to complete the collision, covering, and wrapping between the capture system and the captured target in a point-to-surface or surface-to-body manner, and then completes the capture or recovery of the captured target in a flexible manner. The main function of the space rope net is to cover and wrap the captured target. Therefore, based on the characteristics of the captured target, it is necessary to consider the structural shape and size of the rope net, the performance parameters of the rope net, and the adaptability to the space environment (vacuum, high and low temperature, ultraviolet radiation resistance, etc.) during the design process.

[0004] The invention patent with authorization announcement number CN104790119B discloses a hexagonal space capture rope net and its weaving method, which has the following disadvantages and shortcomings: it does not involve the closing of the rope net, and the opening of the rope net cannot be closed after the rope net captures the target; it does not involve the mooring rope of the rope net, and the rope net-target object combination cannot be operated after the rope net captures the target; there is only one pulling rope, which is easy to be unstable in the process of pulling out and unfolding the rope net, deviating from the original direction and difficult to unfold into a surface.

[0005] The invention patent with authorization announcement number CN109747871B discloses a spatial rope net and a manufacturing method, which has the following disadvantages and shortcomings: it does not involve the pre-treatment operation of breaking knots and twisting of the net rope material, and the untreated net rope is directly woven into a net, which is easy to twist and turn, causing the rope net to be uneven and tangled; the mooring rope of the rope net in this invention is arranged at the inner circle rope on one side, not at the center of the rope net. During the towing off-track process, it is easy to be subjected to uneven force, causing stress concentration.

[0006] Therefore, a space rope net with convenient position adjustment is needed to achieve the dragging and derailment after the target is captured to meet the use requirements. Summary of the invention

[0007] The purpose of the present application is to provide a hexagonal space rope net with closeable openings and a weaving method, which can maintain the orderly storage of the space rope and excellent deployment performance. After capturing the mission target, the opening of the rope net can be closed and locked, and the dragging operation can be performed.

[0008] This application is implemented as follows:

[0009] The present application provides a hexagonal space rope net that can be closed, which includes a regular hexagonal bottom frame rope, a regular hexagonal inner frame rope arranged on the inner side of the bottom frame rope, three reinforcing ropes, six traction ropes, a mooring rope, six closing ropes and a plurality of closing rope rings connected to the bottom frame rope at intervals; the middle parts of the three reinforcing ropes are connected to each other to form the center of the space rope net, the two ends of each reinforcing rope are respectively connected to the two vertices of the inner frame rope in sequence and then connected to the two vertices of the bottom frame rope, the inner frame rope and the reinforcing ropes enclose six equilateral triangle areas with dense mesh purposes, the bottom frame rope, the inner frame rope and the reinforcing ropes enclose six equilateral trapezoidal areas with sparse mesh purposes; the six closing ropes respectively pass through the closing rope rings connected to the six sides of the bottom frame rope, the two ends of each reinforcing rope are respectively connected to a traction rope, and the mooring rope is connected to the center of the space rope net.

[0010] In some optional embodiments, the middle parts of the three reinforcing ropes are connected together by serration using aramid III wire.

[0011] In some optional embodiments, each side of the bottom border line is parallel to each side of the inner border line.

[0012] The present application also provides a method for weaving the above-mentioned hexagonal space rope net that can be closed, comprising the following steps:

[0013] Cut three reinforcing ropes of equal length, align the twist, connect and fix the middle parts of the three reinforcing ropes and arrange them in a * shape;

[0014] Arrange the inner frame ropes into a regular hexagon, and connect the two ends of the three reinforcing ropes to the vertices of the regular hexagon of the corresponding inner frame ropes by ordinary knotting and fixing method;

[0015] Arrange the bottom frame ropes into a regular hexagon, connect the two ends of the three reinforcing ropes to the vertices of the regular hexagon of the corresponding bottom frame ropes by ordinary knotting and fixing, and extend the remaining rope ends at the two ends of the three reinforcing ropes as traction ropes;

[0016] Connect the closing rope rings to the bottom frame rope at intervals;

[0017] After twisting the mooring rope, wrap one of the rope ends around the center of the three reinforcing ropes to connect and secure;

[0018] The mesh braided material is untwisted and then knotted from the center of three reinforcing ropes from inside to outside to form a diamond-shaped dense mesh;

[0019] After the selected mesh weaving material is untwisted, knot it from the inside to the outside at each side of the inner frame rope to form a diamond-shaped open mesh;

[0020] Untwist the closing rope and pass it through the corresponding closing rope rings connected to each side of the bottom frame rope.

[0021] In some optional embodiments, the ordinary knot fixation method is: tie the two ends of the second braided rope into an ordinary knot, straighten the first braided rope and pass it through the cavity formed by the knot of the second braided rope, then tighten the two ends of the second braided rope, use a double-strand aramid III line hand needle to pass through the first braided rope and the second braided rope, and complete the knot fixation after 2-3 stitches.

[0022] In some optional implementation schemes, after the inner frame rope and the bottom frame rope are twisted separately, the two rope ends are overlapped and serrated to form a loop and then arranged into a regular hexagon.

[0023] The beneficial effects of the present application are as follows: the closeable hexagonal space rope net provided by the present application comprises a regular hexagonal bottom frame rope, a regular hexagonal inner frame rope arranged on the inner side of the bottom frame rope, three reinforcing ropes, six traction ropes, a mooring rope, six closing ropes and a plurality of closing rope rings connected to the bottom frame rope at intervals; the middle parts of the three reinforcing ropes are interconnected to form the center of the space rope net, the two ends of each reinforcing rope are respectively connected to the two vertices of the inner frame rope and then connected to the two vertices of the bottom frame rope in sequence, the inner frame rope and the reinforcing ropes enclose six equilateral triangle areas with dense mesh purposes, the bottom frame rope, the inner frame rope and the reinforcing ropes enclose six equilateral trapezoidal areas with sparse mesh purposes; the six closing ropes respectively pass through the closing rope rings connected to the six sides of the bottom frame rope, the two ends of each reinforcing rope are respectively connected to a traction rope, and the mooring rope is connected to the center of the space rope net. The retractable hexagonal space rope net and weaving method provided in the present application can maintain the orderly storage and excellent deployment performance of the space net rope. After capturing the mission target, the net mouth is retracted and locked, and the towing operation can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a hexagonal space rope net that can be closed provided in an embodiment of the present application;

[0026] Figure 2A schematic diagram of a process for preparing a hexagonal space rope net with closing ends provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of a sawtooth connection method at the center point of a reinforcing rope in a method for weaving a hexagonal space rope net that can be closed provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of the connection between the bottom frame rope, the inner frame rope and the reinforcing rope in the method for weaving a closeable hexagonal space rope net provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the sawtooth connection between the mooring rope and the reinforcing rope at the center in the method for compiling a closeable hexagonal space rope net provided in an embodiment of the present application;

[0030] Figure 6 A schematic diagram of a common knot-seam dead-fixing method in a method for weaving a closeable hexagonal space rope net provided in an embodiment of the present application;

[0031] Figure 7 A schematic diagram of manufacturing a closing rope ring in a method for weaving a closing hexagonal space rope net provided in an embodiment of the present application;

[0032] Figure 8 A schematic diagram of a closing rope passing through a closing rope ring in a method for weaving a closeable hexagonal space rope net provided in an embodiment of the present application.

[0033] In the figure: 100, bottom frame rope; 110, inner frame rope; 120, reinforcement rope; 130, traction rope; 140, mooring rope; 150, closing rope; 160, closing rope ring; 170, dense mesh; 180, sparse mesh. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The features and performance of the closeable hexagonal space rope net and its weaving method of the present application are further described in detail below in conjunction with the embodiments.

[0042] like Figure 1As shown, the embodiment of the present application provides a hexagonal space rope net that can be closed, which includes a regular hexagonal bottom frame rope 100, a regular hexagonal inner frame rope 110 arranged inside the bottom frame rope 100, three reinforcing ropes 120, six traction ropes 130, a mooring rope 140, six closing ropes 150 and 150 closing rope rings 160 connected to the bottom frame rope 100 at intervals; each side of the bottom frame rope 100 is parallel to each side of the inner frame rope 110, the middle parts of the three reinforcing ropes 120 are serrated by aramid III wire to form the center of the space rope net, and the two ends of each reinforcing rope 120 are respectively connected to the two vertices of the inner frame rope 110 in sequence. The two vertices of the bottom frame rope 100 are connected to form the overall framework of the space rope net, the inner frame rope 110 and the reinforcement ropes 120 enclose six equilateral triangle areas with dense meshes 170, and the bottom frame rope 100, the inner frame rope 110 and the reinforcement ropes 120 enclose six equilateral trapezoidal areas with sparse meshes 180; six closing ropes 150 respectively pass through the closing rope rings 160 connected to the six sides of the bottom frame rope 100, each of the two ends of each reinforcement rope 120 is connected to a traction rope 130, the mooring rope 140 is connected to the center of the space rope net, and each side of the bottom frame rope 100 is connected to 25 closing rope rings 160 arranged at intervals.

[0043] Space rope nets are used in the field of space debris mitigation technology. The material should be selected from high-molecular textile fibers that are resistant to high and low temperatures and ultraviolet radiation, such as aramid III materials, polyimide materials, and high-strength polyethylene materials that can adapt to the space environment. Considering factors such as overall weight and strength, in this embodiment, the bottom frame rope 100, the inner frame rope 110, the reinforcing rope 120, the traction rope 130, the closing rope ring 160, and the mooring rope 140 constitute the load-bearing frame of the space rope net. The material is aramid III rope with a diameter of 2 mm; the dense mesh 170 and the sparse mesh 180 of the rope net main structure are aramid III rope with a diameter of 0.5 mm; the closing rope 150 is a polyimide rope with a diameter of 1 mm.

[0044] Each side of the plane regular hexagon formed by the bottom frame rope 100 is parallel to each side of the plane regular hexagon formed by the inner frame rope 110. Three reinforcing ropes 120 are distributed in an * shape, and the two ends of the reinforcing rope 120 are respectively connected to the two corresponding vertices of the plane regular hexagon formed by the inner frame rope 110 and the two corresponding vertices of the plane regular hexagon formed by the bottom frame rope 100 and extend to form two traction ropes 130. The diamond-shaped dense mesh 170 is arranged radially from the center of the mesh to the inner frame rope 110, and finally forms a circle of equilateral triangles with the inner frame rope 110; the diamond-shaped sparse mesh 180 is arranged radially from the inner frame rope 110 to the bottom frame rope 100, and finally forms a circle of equilateral triangles with the bottom frame rope 100. The reinforcing rope 120 and the inner frame rope 110 and the bottom frame rope 100 are all connected as follows. Figure 6The connection method of the ordinary knot-seam dead-fixing method shown can ensure the stability of the entire framework of the space rope net.

[0045] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the present application also provides a method for weaving the above-mentioned hexagonal space rope net that can be closed, comprising the following steps:

[0046] Step 1: Cut three reinforcing ropes 120 with a length of 24000 mm, break the twist of the reinforcing ropes 120 and align them, and connect and fix the middle parts of the three reinforcing ropes 120 in pairs and arrange them in a * shape to form the center of the net body;

[0047] Step 2: Cut the inner frame rope 110 of 19310mm in length, make six equal points on the inner frame rope 110, break the twist of the inner frame rope 110, overlap the two rope ends and make sawtooth to form a circle and then arrange it into a regular hexagon, cut the bottom frame rope 100 of 60110mm in length, make six equal points on the bottom frame rope 100, break the twist of the bottom frame rope 100, overlap the two rope ends and make sawtooth to form a circle and then arrange it into a regular hexagon, and connect the three reinforcing ropes 120 at 3200mm at both ends from the center of the net body. , 10000mm are respectively connected with the six equally divided process points of the corresponding inner frame rope 110 and the bottom frame rope 100 through the ordinary knotting and fixing method to form the inner frame rope 110 and the bottom frame rope 100 of a regular hexagon; the ordinary knotting and fixing method is: wrap the two rope ends of the second braided rope with an ordinary knot, straighten the first braided rope and pass it through the cavity formed by the knotting of the second braided rope, and then tighten the two rope ends of the second braided rope, use a double-strand aramid III line hand needle to pass through the first braided rope and the second braided rope, and complete the knotting and fixing after sewing 2-3 stitches.

[0048] Step 3, starting from the knot of the bottom frame rope 100 and the reinforcing rope 120, sew a closing rope ring 160 on the bottom frame rope 100 at a distance of 400 mm, and sew 150 closing rope rings 160 in total;

[0049] Step 4: Cut a mooring rope 140 with a length of 30000 mm, twist it, and pass one of the rope ends around the center of the three reinforcing ropes 120, and then use aramid III wire to serrate and connect and fix it;

[0050] Step 5: Select a sufficient number of mesh weaving materials, untwist them first, and then tie them from the center of the frame from the inside to the outside to form a diamond-shaped dense mesh 170 with a length of 400 mm until the inner frame rope 110. The weaving of the dense mesh 170 is completed.

[0051] Step 6. Select a sufficient number of mesh weaving materials and untwist them first, then tie knots from the inner frame rope 110 from the inside to the outside to form a diamond-shaped sparse mesh 180 with a length of 800 mm until the bottom frame rope 100, and the weaving of the sparse mesh 180 is completed.

[0052] Step 7: Select six 14000mm-long closing ropes 150 for untwisting, and then pass the closing ropes 150 through the closing rope rings 160 on the bottom frame ropes 100 in sequence, so as to complete the production of the space rope net. Figure 1 shown.

[0053] The hexagonal space rope net and its weaving method provided in the embodiment of the present application utilize three *-shaped reinforcement ropes 120 formed in the center of the net body, which are respectively connected with the regular hexagonal bottom frame rope 100 and the regular hexagonal inner frame rope 110 arranged on the inner side of the bottom frame rope 100 to form an overall space rope net structure. Closing rope rings 160 are separately introduced on the bottom frame rope 100 of the space rope net. These closing rope rings 160 not only do not slide but also remain in the same direction. The closing rope 150 inserted into the closing rope rings 160 can remain relatively parallel to the bottom frame rope 100, reducing the entanglement between the bottom frame rope 100 and the closing rope 150, making the closing action of the closing rope 150 smoother and reducing the wear with the bottom frame rope 100. In order to improve the stability of the space rope net during towing and reduce the strength loss of the single-sided inner circle rope caused by stress concentration, a serrated connection is used. The center of the rope net is made by connecting three reinforcing ropes 120, and a mooring rope 140 is connected at the center of the three reinforcing ropes 120. After the space rope net completes the capture, the space rope net assembly can be evenly dragged and other related operations through the mooring rope 140; in order to reduce the weight of the rope net to the greatest extent, combined with the stress condition of the rope net, the rope net force frame uses a larger diameter and stronger aramid III rope, and the rope net body uses a smaller diameter and the second strongest aramid III rope, which reduces the total weight of the rope net; by setting a special weaving method combining dense mesh and sparse mesh of specific sizes in the equilateral triangle area enclosed by the inner frame rope 110 and the reinforcing ropes 120 and the equilateral trapezoidal area enclosed by the bottom frame rope 100, the inner frame rope 110 and the reinforcing ropes 120, respectively, a good contact and winding performance is provided for the rope net and the captured target, and the capture success rate of the space rope net is increased. In each step of the production process of the space rope net, the braided rope is first untwisted to make the braided rope net smoother, easier to organize and store, and less likely to twist and tangle;

[0054] The closeable hexagonal space rope net and its weaving method provided in the embodiment of the present application have the advantages of complete composition, perfect functions and more optimized structural layout compared with the prior art. The rope net weaving method is operational, the rope net is lighter, the rope net is stronger, and it is more practical.

[0055] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A hexagonal space rope net with closing ends, characterized in that: The invention comprises a regular hexagonal bottom frame rope, a regular hexagonal inner frame rope arranged on the inner side of the bottom frame rope, three reinforcing ropes, six traction ropes, a mooring rope, six closing ropes and a plurality of closing rope rings connected to the bottom frame rope at intervals; the middle parts of the three reinforcing ropes are mutually connected to form the center of the space rope net, the two ends of each reinforcing rope are respectively connected to the two vertices of the inner frame rope in sequence and then connected to the two vertices of the bottom frame rope, the inner frame rope and each reinforcing rope enclose six equilateral triangle areas with dense meshes, the bottom frame rope, the inner frame rope and each reinforcing rope enclose six equilateral trapezoidal areas with sparse meshes; the six closing ropes respectively pass through the closing rope rings connected to the six sides of the bottom frame rope, the two ends of each reinforcing rope are respectively connected to a traction rope, and the mooring rope is connected to the center of the space rope net.

2. The retractable hexagonal space rope net according to claim 1, characterized in that: The middle parts of the three reinforcing ropes are connected together by serration using aramid III wire.

3. The retractable hexagonal space rope net according to claim 1, characterized in that: Each side of the bottom frame string is parallel to each side of the inner frame string.

4. The weaving method of the closeable hexagonal space rope net according to any one of claims 1 to 3, characterized in that: The following steps are involved: Cut three reinforcing ropes of equal length, break the twist and align them, connect and fix the middle parts of the three reinforcing ropes and arrange them in a * shape; Arrange the inner frame ropes into a regular hexagon, and connect the two ends of the three reinforcing ropes to the vertices of the regular hexagon of the corresponding inner frame ropes by ordinary knotting and fixing method; Arrange the bottom frame ropes into a regular hexagon, connect the two ends of the three reinforcing ropes to the vertices of the regular hexagons of the corresponding bottom frame ropes by ordinary knotting and fixing, and extend the remaining rope ends at the two ends of the three reinforcing ropes as traction ropes; Connecting the closing rope rings to the bottom frame rope at intervals; After the mooring rope is twisted, one of the rope ends is passed around the center of the three reinforcing ropes to connect and fix; The mesh braided material is untwisted and then knotted from the center of the three reinforcing ropes from inside to outside to form a diamond-shaped dense mesh; After the mesh braiding material is untwisted, knots are tied from inside to outside at each side of the inner frame rope to form a diamond-shaped open mesh; The closing rope is untwisted and passed through the corresponding closing rope rings connected to each side of the bottom frame rope.

5. The weaving method of the hexagonal space rope net with closing ends according to claim 4 is characterized in that: The ordinary knot-sewing fixation method is: tie the two rope ends of the second braided rope into an ordinary knot, straighten the first braided rope and pass it through the cavity formed by the knotting of the second braided rope, then tighten the two rope ends of the second braided rope, use a double-strand aramid III line hand needle to pass through the first braided rope and the second braided rope, and complete the knotting fixation after 2-3 stitches.

6. The weaving method of the closeable hexagonal space rope net according to claim 4, characterized in that: The inner frame rope and the bottom frame rope are twisted separately, and then two rope ends are overlapped and serrated to form a circle and then arranged into a regular hexagon.

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