Extraterrestrial star drilling core assembly structure and preparation method thereof

Abstract

The invention relates to the technical field of star detection equipment, in particular to an extraterrestrial star drilling and coring assembly structure and a preparation method thereof.The extraterrestrial star drilling and coring assembly structure comprises a limiting and locking mechanism, a flexible coring rotary body, a reducing cone, an equal-tension bundling rope and an end cap, and one end of the flexible coring rotary body is connected with the limiting and locking mechanism; one end of the flexible coring rotary body is connected with the end part of the variable-diameter cone, the other end of the flexible coring rotary body is connected with the end part of the variable-diameter cone, the flexible coring rotary body and the variable-diameter cone form a flexible coring structure, a storage structure is connected in the variable-diameter cone, and the other end of the variable-diameter cone is connected with the end cap through an equal-tension bundling rope. Compared with the prior art, the device has the advantages that the structure complexity is greatly simplified, the high coring rate of the device is guaranteed, the phenomena of sample leakage and sample falling are avoided when coring operation is executed, the bedding retention degree of the taken samples is high, and the device has extremely high technical value for scientific research.

Description

Technical Field

[0001] The present invention relates to the technical field of star detection equipment, and in particular to an extraterrestrial body drilling core component structure and a preparation method thereof. Background Art

[0002] Stellar exploration sampling usually refers to the process of collecting samples from other celestial bodies, such as planets, satellites, asteroids, etc., through space probes or landers. These samples are of great significance for scientific research because they can provide information about the composition, history, environmental conditions and possibility of life on celestial bodies.

[0003] However, the prior art still has shortcomings. For example, patent number: CN201822251830.8 is an extraterrestrial body sampling device, in which support legs, a telescopic grasping device and a multi-degree-of-freedom robotic arm are respectively provided at the bottom of the satellite body. There are multiple support legs evenly distributed along the circumference. The upper end of the multi-degree-of-freedom robotic arm is connected to the bottom of the satellite body, and the lower end is connected to a diamond chain saw for cutting extraterrestrial body samples; the telescopic grasping device can be relatively telescopically installed on the satellite body, the upper end is connected to a power source installed inside the satellite body and is driven to extend and retract by the power source, and the lower end is provided with a capturing claw for capturing samples. When the capturing claw of the device performs a coring operation, the operation is extremely unstable, which can easily lead to sample leakage. Summary of the invention

[0004] The present invention provides an extraterrestrial body drilling core component structure and a preparation method thereof, which are used to solve the problem raised in the background technology.

[0005] In order to achieve the above-mentioned invention objectives, the present invention provides the following technical solutions: an extraterrestrial body drilling core sampling assembly structure, comprising: a limit locking mechanism, a flexible coring rotor, a reducing cone, an equal tension bundle rope and an end cap, one end of the flexible coring rotor is connected to the limit locking mechanism, the other end of the flexible coring rotor is connected to the end of the reducing cone, the flexible coring rotor and the reducing cone form a flexible coring structure, a storage structure is connected inside the reducing cone, and the other end of the reducing cone is connected to the end cap through an equal tension bundle rope.

[0006] Preferably, the limit locking mechanism includes: a high-strength and ultra-thin limit cylinder, a breaking cable, a locking ring spring and a carbon fiber rope. The side wall at the end of the flexible coring rotating body is connected to one side of the locking ring spring, and the other side of the locking ring spring is slidably connected to the inner wall of the high-strength and ultra-thin limit cylinder. The end of the locking ring spring is connected to an end of the breaking cable through the carbon fiber rope, and the other end of the breaking cable is connected to the other end of the locking ring spring. The inner wall of the high-strength and ultra-thin limit cylinder is connected to the end of the flexible coring rotating body.

[0007] Preferably, the other ends of the two breaking cables are passed through the side wall of the high-strength ultra-thin limiting cylinder.

[0008] Preferably, the flexible coring rotor and the reducer are both hollow fabrics woven by a shuttleless loom or a shuttle loom, the diameter of the end of the reducer is 25 mm, and the diameter of the other end of the reducer is 15 mm.

[0009] Preferably, the warp yarns of the hollow fabric are composed of one or two of ultra-high molecular weight polyethylene fibers, aramid fibers, PBO fibers, PBOH fibers, PIPD fibers, aramid fibers, and polyimide fibers that have been modified to resist space radiation.

[0010] Preferably, the weft yarn of the hollow fabric is composed of one or two of ultra-high molecular weight polyethylene fiber, aramid fiber, PBO fiber, PBOH fiber, PIPD fiber, aromatic ester fiber, polyimide fiber, metal fiber, ceramic fiber and glass fiber modified to resist space radiation.

[0011] Preferably, the storage structure is specifically a partition plate composed of a plurality of hollow fabrics, and the side wall of the partition plate is connected to the inner wall of the variable diameter cone cavity to divide the cavity into eight equal parts.

[0012] Preferably, the sheath-core structure bundling rope is specifically composed of 100-500 warp yarns bundled under equal tension and hollow-coated ropes.

[0013] Preferably, the material of the end cap is specifically a curing resin.

[0014] Preferably, a method for preparing an extraterrestrial body drilling core assembly structure is applicable to any of the above-mentioned extraterrestrial body drilling core assembly structures, comprising the following steps: Based on a shuttleless loom or a shuttle loom, the storage structure, the diameter-changing cone and the flexible core-taking rotating body are woven in sequence using warp yarns and weft yarns; After finishing weaving the storage structure, the diameter reducing cone and the flexible coring rotating body, a skin-core structure bundling rope is weaved at the other end of the diameter reducing cone by using a shuttleless loom or a shuttle loom; When weaving the skin-core structure bundling rope, the 12-spindle spiral cross-weaving method is adopted; After weaving the skin-core structure cluster rope, use a 3D printer to print the end cap on the skin-core structure cluster rope; One side of the locking ring spring is sewn on the side wall of the flexible coring rotary body to complete the preliminary installation of the limit locking mechanism; After the initial installation of the limit locking mechanism is completed, the inner wall of the high-strength ultra-thin limit cylinder is sewn to the end of the flexible coring rotary body to complete the preparation of the structure.

[0015] The beneficial effects of the present invention are as follows: In the scheme of the present invention: 1. The flexible coring rotary body, the reducing cone and the storage structure in the reducing cone are provided to greatly simplify the complexity of the structure, ensure the high coring rate of the device, and prevent the phenomenon of sample leakage and sample loss during the coring operation. The sample taken out has a high degree of layer retention, which has a very high technical value for scientific research; 2. A limit locking mechanism is set in the structure to perform the sealing and opening actions on the flexible coring rotary body, effectively avoiding the occurrence of sample contamination; 3. The setting of the flexible coring rotor and the reducing cone has an excellent low-vibration coupling effect. With this setting, when the structure is in flight and without adjusting the flight control system, optimizing the aerodynamic layout and performing modal analysis, it can effectively avoid the occurrence of resonance. At the same time, it can further maintain the original rationality of the samples inside the structure, which has extremely high use value and the ability to adapt to a variety of different flight states. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the main structure of the present invention; Figure 2 It is a schematic diagram of the connection relationship between the stop ring spring and the flexible coring rotating body of the present invention.

[0017] Among them: locking ring spring 100, breaking cable 200, high-strength ultra-thin limiting cylinder 300, flexible coring rotating body 400, reducing cone 500, equal tension bundle rope 600, end cap 700. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example 1: Reference Figure 1-Figure 2 A core sampling assembly structure for an extraterrestrial body includes: a limit locking mechanism, a flexible coring rotary body 400, a reducing cone 500, an isotensoidal bundle rope 600 and an end cap 700. One end of the flexible coring rotary body 400 is connected to the limit locking mechanism, and the other end of the flexible coring rotary body 400 is connected to the end of the reducing cone 500. The flexible coring rotary body 400 and the reducing cone 500 form a flexible coring structure. A storage structure is connected inside the reducing cone 500, and the other end of the reducing cone 500 is connected to the end cap 700 through the isotensoidal bundle rope 600.

[0020] The principles and beneficial effects of the above scheme are: When performing the coring operation, the end cap 700 drives the tension bundle rope 600, the reducing cone 500, the storage structure and the flexible coring rotary body 400 to move outward. Under the restriction of the limit locking mechanism, the inside of the flexible coring rotary body 400 is turned outward. When the storage structure in the reducing cone 500 contacts the surface of the celestial body and is plugged into the surface of the celestial body, the end cap 700 then drives the tension bundle rope 600, the reducing cone 500, the storage structure and the flexible coring rotary body 400 to move inward. The storage structure drives the end of the sample to move synchronously. At this time, the inward-turned flexible coring rotary body 400 synchronously covers the side of the sample to complete the coring operation. Finally, the limit locking mechanism is activated to lock the end of the flexible coring rotary body 400. After the transportation of the sample is completed, the locking mechanism is activated again to open the flexible coring rotary body 400. Once again, the flexible coring rotary body 400 is turned outward by the movement of the end cap 700 to release the sample. By providing the flexible coring rotor 400 and the reducing cone 500 and the storage structure within the reducing cone 500, the complexity of the structure is greatly simplified, and a high coring rate of the device is ensured. Furthermore, when performing the coring operation, there will be no leakage or loss of samples, and the layer structure of the taken samples will be highly retained, which has extremely high technical value for scientific research. A limit locking mechanism is provided in the structure to perform the sealing and opening actions of the flexible coring rotor 400, effectively avoiding the occurrence of sample contamination. The setting of the flexible coring rotor 400 and the reducing cone 500 has an excellent low-vibration coupling effect. With this setting, when the structure is in a flight state and without adjusting the flight control system, optimizing the aerodynamic layout and performing modal analysis, the occurrence of resonance can be effectively avoided, and the original layer structure of the samples inside the structure can be further maintained, which has extremely high use value and adaptability to a variety of different flight states.

[0021] Example 2: Reference Figure 1-Figure 2 The limit locking mechanism includes: a high-strength and ultra-thin limit cylinder 300, a breaking cable 200, a locking ring spring 100 and a carbon fiber rope. The side wall at the end of the flexible coring rotating body 400 is connected to one side of the locking ring spring 100, and the other side of the locking ring spring 100 is slidingly connected to the inner wall of the high-strength and ultra-thin limit cylinder 300. The end of the locking ring spring 100 is connected to an end of a breaking cable 200 through a carbon fiber rope, and the other end of the breaking cable 200 is connected to the other end of the locking ring spring 100. The inner wall of the high-strength and ultra-thin limit cylinder 300 is connected to the end of the flexible coring rotating body 400.

[0022] The other ends of the two breaking cables 200 are both passed through the side wall of the high-strength ultra-thin limiting cylinder 300 .

[0023] The high-strength and ultra-thin limiting cylinder 300 is specifically made of hollow fabric.

[0024] The principles and beneficial effects of the above scheme are: After the coring of the structure is completed, the other ends of the two breaking cables 200 are pulled respectively, and one of the breaking cables 200 drives the carbon fiber rope to move. At this time, the carbon fiber rope and the other breaking cable 200 cooperate with each other to drive the two ends of the locking ring spring 100 to approach each other, thereby realizing the sealing of the flexible coring rotor 400. When it is necessary to release the seal of the flexible coring rotor 400, it is only necessary to loosen the two breaking cables 200 to achieve the purpose of unlocking. The breaking cable 200 specifically refers to a rope that can be broken at a fixed point and within a fixed force value range. The breaking cable 200 used in this structure can replace the existing pyrotechnic breaking technology. Based on the coring process The breaking cable 200 has extremely strong stability. At the same time, when the machine is working, the structure will not produce violent vibrations, thereby providing excellent protection for the precision devices around the structure. Since the high-strength and ultra-thin limit cylinder 300 is made of the same material as the flexible coring rotor 400, the high-strength and ultra-thin limit cylinder 300 can not only provide guidance when the flexible coring rotor 400 is flipped, but also reduce the friction of the flexible coring rotor 400 when it moves. In addition, the high-strength and ultra-thin limit cylinder 300 also has a structural reinforcement effect on the flexible coring rotor 400, thereby protecting the flexible coring rotor 400.

[0025] Example 3: Reference Figure 1-Figure 2 The flexible coring rotating body 400 and the reducing cone 500 are both hollow fabrics woven by a shuttleless loom or a shuttle loom. The diameter of the end of the reducing cone 500 is 25 mm, and the diameter of the other end of the reducing cone 500 is 15 mm.

[0026] The principles and beneficial effects of the above scheme are: The diameter of the end of the reducing cone 500 is 25 mm, and the diameter of the other end of the reducing cone 500 is 15 mm. This arrangement can increase the clamping effect of the sample inside the structure. Furthermore, the reducing cone 500 cooperates with the flexible coring rotating body 400 to achieve in-situ wrapping of the sample without slippage.

[0027] Example 4: Reference Figure 1-Figure 2 The warp yarn of the hollow fabric is composed of one or two of ultra-high molecular weight polyethylene fiber, aramid fiber, PBO fiber, PBOH fiber, PIPD fiber, aramid fiber, and polyimide fiber modified to resist space radiation.

[0028] The weft yarn of the hollow fabric is composed of one or two of ultra-high molecular weight polyethylene fiber, aramid fiber, PBO fiber, PBOH fiber, PIPD fiber, aromatic ester fiber, polyimide fiber, metal fiber, ceramic fiber and glass fiber modified by space radiation resistance.

[0029] The principles and beneficial effects of the above scheme are: The hollow fabric is a woven fabric composed of warp yarns and weft yarns, so it has the advantages of high strength, light weight, simple structure, strong adjustability and easy handling. It has extremely high use value for the production of the flexible coring rotor 400 and the reducing cone 500. Since the warp yarns and the weft yarns are made of materials modified to resist space radiation, the radiation protection ability of the sample after collection is further improved. In addition, since the warp yarns are composed of one or two of ultra-high molecular weight polyethylene fibers, aramid fibers, PBO fibers, PBOH fibers, PIPD fibers, aromatic ester fibers, and polyimide fibers, and the weft yarns of the hollow fabric are composed of ultra-high molecular weight polyethylene fibers, aramid fibers, PBO fibers, PBOH fibers, PIPD fibers, aromatic ester fibers, and polyimide fibers, It is composed of one or two of fiber, metal fiber, ceramic fiber, and glass fiber. It can be further known that the flexible coring rotor 400 and the reducing cone 500 can be selected from a wide range of materials, which reduces the difficulty of structural manufacturing and facilitates the large-scale and rapid production of the structure; since the flexible coring rotor 400 is a soft structure made of the above materials, it has excellent flexible adaptive tensioning ability under ultra-long spans, and can have a precise spiral winding function when storing samples, so as to effectively protect the overall structure of the sample, and then can effectively protect the originality of the sample under limited technical conditions at the recovery site when the structure has just been transported, and at the same time is conducive to ensuring the authenticity of the sample research in order to obtain the most accurate data.

[0030] Example 5: Reference Figure 1-Figure 2 The storage structure is specifically a partition plate composed of multiple hollow fabrics, and the side wall of the partition plate is connected to the inner wall of the cavity of the reducing cone 500 to divide the cavity into eight equal parts.

[0031] The principles and beneficial effects of the above scheme are: After the partition plate divides the cavity into eight equal parts, the partition plate cooperates with the inner wall of the cavity of the reducing cone 500, which is not only conducive to the collection and storage of samples, but also increases the structural strength of the reducing cone 500. Furthermore, the tensile strength of the reducing cone 500 can be greatly improved, especially the mechanical properties and stability at 350°C, which improves the reliability of the flexible coring structure. Example 6: Reference Figure 1-Figure 2 The skin-core structure bundling rope 600 is specifically composed of 100-500 warp yarns bundled under equal tension and hollow-coated ropes.

[0032] The principles and beneficial effects of the above scheme are: The number of warp yarns used in the core-sheath structure bundling rope 600 can be determined based on actual conditions. The warp yarns used in the core-sheath structure bundling rope 600 are selected from one or two of ultra-high molecular weight polyethylene fibers, aramid fibers, PBO fibers, PBOH fibers, PIPD fibers, aromatic ester fibers, and polyimide fibers that have been modified to resist space radiation. The overall bundling tension of the core-sheath structure bundling rope 600 reaches 5-30N, which greatly increases the strength of the structure and is beneficial to the force conduction of the end cap 700. The core-sheath structure bundling rope 600 has excellent pulling and winding capabilities.

[0033] Example 7: Reference Figure 1-Figure 2 The material of the end cap 700 is specifically a curing resin.

[0034] The principles and beneficial effects of the above scheme are: The end cap 700 is printed by a 3D printer using curing resin, which can reduce the difficulty of connecting the end cap 700 to the power output device. It can not only realize the core lifting force, that is, the transmission of the force required when the flexible coring rotating body 400 is turned outward or inward, but also reduce vibration coupling, further improving the reliability of the overall structure.

[0035] Example 8: Reference Figure 1-Figure 2 A method for preparing an extraterrestrial body drilling core assembly structure, applicable to any of the above-mentioned extraterrestrial body drilling core assembly structures, comprises the following steps: Based on a shuttleless loom or a shuttle loom, the storage structure, the reducing cone 500 and the flexible coring rotating body 400 are woven in sequence using warp yarns and weft yarns; After finishing weaving the storage structure, the diameter-changing cone 500 and the flexible coring rotating body 400, a skin-core structure bundling rope 600 is weaved at the other end of the diameter-changing cone 500 by using a shuttle-less loom or a shuttle loom; When braiding the skin-core structure cluster rope 600, the 12-spindle spiral cross braiding method is adopted; After the skin-core structure cluster rope 600 is braided, the end cap 700 is printed on the skin-core structure cluster rope 600 using a 3D printer; One side of the locking ring spring 100 is sewn onto the side wall of the flexible coring rotary body 400 to complete the preliminary installation of the limit locking mechanism; After the preliminary installation of the limit locking mechanism is completed, the inner wall of the high-strength ultra-thin limit cylinder 300 is sewn to the end of the flexible coring rotating body 400 to complete the preparation of the structure.

[0036] The principles and beneficial effects of the above scheme are: Weaving the storage structure from the inside out first is more conducive to ensuring the structural accuracy of the variable diameter cone 500 and the flexible coring rotary body 400 after weaving. At the same time, the woven storage structure can stabilize the variable diameter cone 500 during weaving. Different tooling can also be selected to clamp the preliminary woven structure according to the characteristics of the storage structure. After the weaving of the flexible coring rotary body 400 is completed, the skin-core structure bundling rope 600 is weaved at the other end of the variable diameter cone 500, which improves the continuity of weaving and increases the accuracy of the connection between the skin-core structure bundling rope 600 woven at the other end of the variable diameter cone 500 and the variable diameter cone 500. The 12-spindle spiral cross weaving method is specifically a special textile technology, which is usually used to manufacture high-strength and high-durability products, such as braided fabrics. This weaving method cross-weaves 12 independent warp yarns together in a spiral manner, thereby producing a tight and stable skin-core structure bundling rope 600; Subsequently, a 3D printer is used to print the end cap 700 on the skin-core structure bundle rope 600. After printing is completed, the locking ring spring 100 is sewn on the side wall of the flexible coring rotor 400, and finally the inner wall of the high-strength and ultra-thin limit tube 300 is sewn to the end of the flexible coring rotor 400, which greatly improves the efficiency of structure preparation.

[0037] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An extraterrestrial body drilling core assembly structure, characterized in that: include: A limit locking mechanism, a flexible coring rotating body (400), a reducing cone (500), an isotensile bundle rope (600) and an end cap (700); one end of the flexible coring rotating body (400) is connected to the limit locking mechanism; the other end of the flexible coring rotating body (400) is connected to the end of the reducing cone (500); the flexible coring rotating body (400) and the reducing cone (500) form a flexible coring structure; a storage structure is connected inside the reducing cone (500); and the other end of the reducing cone (500) is connected to the end cap (700) via the isotensile bundle rope (600); The limit locking mechanism comprises: a high-strength ultra-thin limit cylinder (300), a breaking cable (200), a locking ring spring (100) and a carbon fiber rope; the side wall at the end of the flexible coring rotating body (400) is connected to one side of the locking ring spring (100); the other side of the locking ring spring (100) is slidably connected to the inner wall of the high-strength ultra-thin limit cylinder (300); the end of the locking ring spring (100) is connected to the end of one breaking cable (200) through the carbon fiber rope; the end of the other breaking cable (200) is connected to the other end of the locking ring spring (100); and the inner wall of the high-strength ultra-thin limit cylinder (300) is connected to the end of the flexible coring rotating body (400); The other ends of the two breaking cables (200) are both passed through the side wall of the high-strength ultra-thin limiting cylinder (300); The high-strength ultra-thin limiting cylinder (300) is specifically made of hollow fabric.

2. The extraterrestrial body drilling core assembly structure according to claim 1, characterized in that: The flexible coring rotating body (400) and the reducing cone (500) are both hollow fabrics woven by a shuttleless loom or a shuttle loom. The diameter of the end of the reducing cone (500) is 25 mm, and the diameter of the other end of the reducing cone (500) is 15 mm.

3. The extraterrestrial body drilling core assembly structure according to claim 2, characterized in that: The warp yarn of the hollow fabric is composed of one or two of ultra-high molecular weight polyethylene fiber, aramid fiber, PBO fiber, PBOH fiber, PIPD fiber, arylate fiber and polyimide fiber modified by space radiation resistance.

4. The extraterrestrial body drilling core assembly structure according to claim 3, characterized in that: The weft yarn of the hollow fabric is composed of one or two of ultra-high molecular weight polyethylene fiber, aramid fiber, PBO fiber, PBOH fiber, PIPD fiber, aromatic ester fiber, polyimide fiber, metal fiber, ceramic fiber and glass fiber modified by space radiation resistance.

5. The extraterrestrial body drilling core assembly structure according to claim 4, characterized in that: The storage structure is specifically a partition plate composed of a plurality of hollow fabrics, and the side wall of the partition plate is connected to the inner wall of the cavity of the reducing cone (500) to divide the cavity into eight equal parts.

6. The extraterrestrial body drilling core assembly structure according to claim 3, characterized in that: The skin-core structured bundle rope (600) is specifically composed of a rope with 100 to 500 warp yarns bundled under equal tension and then hollow-coated.

7. The extraterrestrial body drilling core assembly structure according to claim 1, characterized in that: The material of the end cap (700) is specifically curing resin.

8. A method for preparing an extraterrestrial body drilling core assembly structure, applicable to an extraterrestrial body drilling core assembly structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: Based on a shuttleless loom or a shuttle loom, the storage structure, the diameter-changing cone (500) and the flexible coring rotating body (400) are sequentially woven using warp yarns and weft yarns; After the storage structure, the diameter-changing cone (500) and the flexible coring rotating body (400) are braided, a skin-core structure bundle rope (600) is braided at the other end of the diameter-changing cone (500) using a shuttleless loom or a shuttle loom; When braiding the skin-core structure bundle rope (600), a 12-spindle spiral cross braiding method is adopted; After the skin-core structure cluster rope (600) is braided, an end cap (700) is printed on the skin-core structure cluster rope (600) using a 3D printer; One side of the locking ring spring (100) is sewn onto the side wall of the flexible coring rotary body (400) to complete the preliminary installation of the limit locking mechanism; After the initial installation of the limit locking mechanism is completed, the inner wall of the high-strength ultra-thin limit cylinder (300) and the end of the flexible coring rotating body (400) are sewn together to complete the preparation of the structure.

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