Lens condensation sintering lunar soil forming equipment and control method

Abstract

The invention relates to the technical field of lunar surface solar energy sintering, in particular to lens condensation sintering lunar soil forming equipment and a control method, and the equipment comprises a mobile equipment body which is used for moving the lens condensation sintering lunar soil forming equipment; the motion platform, the processing device and the powder spreading device are arranged on the mobile equipment body; a lens condenser is arranged on the moving platform, and the moving platform controls the lens condenser to translate in multiple directions and rotate in multiple angles so as to change the position of a focusing light spot of the lens condenser; the processing device processes the lunar soil raw material into a powder material suitable for sintering; and the powder laying device lays a layer of powder material on the plane where the focusing light spot is located, the lens condenser is moved to sinter the powder material lunar soil, and the laying action and the sintering action are repeated until a preset structure is formed. Therefore, the problems that large-size and heavy-weight equipment and materials cannot be carried due to high cost of a spacecraft, and conditions are lacked in lunar landing and lunar surface construction activities are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lunar solar sintering, and in particular to a lens light condensation sintering lunar soil forming device and a control method. BACKGROUND

[0002] For future lunar missions, building lunar infrastructure that can ensure the safety of astronauts' life activities and various detection instruments will be an important part. The high cost of spacecraft makes it impossible to carry large-volume, i.e. large-weight, equipment and materials to the moon, and lunar construction activities lack conditions. SUMMARY

[0003] The present application provides a lens light condensation sintering lunar soil forming device and a control method to solve the problems of lack of lunar infrastructure equipment with large volume and poor portability in related technologies.

[0004] The first aspect of the present application provides a lens light condensation sintering lunar soil forming device, comprising: a mobile device body for moving the lens light condensation sintering lunar soil forming device; a motion platform, a processing device and a powder laying device arranged on the mobile device body; the motion platform is provided with a lens light condenser, the motion platform controls the multi-directional translation and multi-angle rotation of the lens light condenser to change the position of the focused light spot of the lens light condenser; the processing device processes lunar soil raw materials into powder materials suitable for sintering; the powder laying device lays a layer of powder material on the plane where the focused light spot is located, sintering the powder material lunar soil by moving the lens light condenser, and repeating the laying and sintering actions until a predetermined structure is formed.

[0005] According to one embodiment of the present application, the lens light condenser comprises at least one of a light condensing convex lens, an array type light condenser and a reflective light condenser.

[0006] According to one embodiment of the present application, the lens light condenser is adapted to the focal length and aperture ratio based on the lunar gravity environment and the solar radiation environment.

[0007] According to one embodiment of the present application, the motion platform has at least six degrees of freedom to realize the positioning and angle adjustment of the lens light condenser in three-dimensional space.

[0008] According to one embodiment of the present application, the processing device comprises a screening module, a sorting module and a mixing module, wherein the screening module is used to screen and separate lunar soil particles into multiple particle size ranges and output powder materials of a target particle size range; the sorting module is used to extract mineral components suitable for light condensation sintering from the powder materials of the target particle size range; and the mixing module is used to add sintering aids to the mineral components suitable for light condensation sintering.

[0009] According to one embodiment of the present application, the sintering aid comprises inorganic binder material and / or organic binder material.

[0010] According to an embodiment of the present application, the powder laying device comprises a leveling mechanism, a feeding system and a control module, wherein the leveling mechanism is configured to lay a uniform and flat layer of powder material on a plane where a focused light spot is located; the feeding system is configured to continuously feed the powder material to a sintering area within a movement path range of the plane where the focused light spot is located, and cooperate with the leveling mechanism to achieve uniform and flat laying; and the control module is configured to control the thickness of the single layer of powder material by mechanical scraper and / or vibration compaction. According to an embodiment of the present application, the powder laying device cooperates with the movement platform, and after the movement platform completes the movement path of the single layer sintering solidification, the powder laying device automatically performs the next layer powder laying operation until the predetermined structure is formed. According to an embodiment of the present application, the mobile device body comprises a solar auxiliary power supply system and at least one of a tracked and wheeled chassis.

[0011] According to an embodiment of the present application, the control method of the lens light condensation sintering lunar soil forming device comprises the following steps: controlling the mobile device body to move the lens light condensation sintering lunar soil forming device to a target area; processing the lunar soil raw material of the target area into a powder material suitable for sintering by a processing device; controlling the multi-directional translation and multi-angle rotation of the lens light condenser by a six-axis movement platform to change the position of the focused light spot of the lens light condenser, laying a layer of powder material on the plane where the focused light spot is located by a powder laying device, sintering the powder material lunar soil by moving the lens light condenser, and repeating the laying action and the sintering action until the predetermined structure is formed.

[0012] Therefore, the present application has at least the following beneficial effects: The embodiments of the present application can construct a low-cost and high-efficiency lunar construction system by deeply integrating lunar local resources and solar energy technology, fully utilize two types of original resources, i.e., lunar solar energy and lunar soil, greatly reduce the cost of energy supply and basic material acquisition, and realize efficient direct utilization of energy; use pure lunar soil or a lunar soil mixture with only a small amount of added agent as raw material, prepare construction materials by sintering and solidification process, and reduce the cost of transporting materials from the earth to the moon from the root; and use large-size lens light condensation technology as a heating forming means, which can directly convert solar energy into heat energy without complex energy secondary conversion, has high system energy utilization efficiency, and enables the device to realize direct utilization of energy, thereby improving the energy utilization density. Therefore, the embodiments of the present application not only can reduce the volume of the device, but also can improve the energy utilization efficiency and have the advantage of energy density, thereby significantly improving the efficiency of lunar soil solidification and forming. Compared with the sintering and forming or additive manufacturing scheme in the related art, the embodiments of the present application realize the improvement of efficiency, thereby improving the efficiency of lunar construction. Therefore, the high cost of spacecraft makes it impossible to carry large amount and heavy equipment and materials to the moon, and the lunar construction activity lacks conditions, and the like, which are solved.

[0013] Additional aspects and advantages of the application will be set forth in part in the description that follows, and in part will become apparent to those having ordinary skill in the art upon examination of the following or can be learned from practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein: Figure 1 A schematic diagram of a lens light condensation sintering lunar soil forming device according to an embodiment of the present application; Figure 2 A schematic diagram of a processing device and a powder laying device in a lens light condensation sintering lunar soil forming device according to an embodiment of the present application; Figure 3 A schematic diagram of a lens light condensation device and a motion platform in a lens light condensation sintering lunar soil forming device according to an embodiment of the present application; Figure 4 A flowchart of a control method of a lens light condensation sintering lunar soil forming device according to an embodiment of the present application. DETAILED DESCRIPTION

[0015] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0016] The moon surface lacks infrastructure and it is difficult to obtain traditional energy. In the related art, the electron beam or laser sintering device has huge energy consumption, the solar panel power supply efficiency is insufficient, and the system is heavy and difficult to meet the demand for high energy density heat source for large-scale lunar soil melting forming. The characteristics of the lunar environment such as low gravity, high vacuum, complex terrain, and large diurnal temperature difference have high requirements for the reliability and lightweight of the device.

[0017] At the same time, the moon surface is uneven and the sun angle changes continuously, and the device needs to be able to perform precise motion with a large range and multiple degrees of freedom to maintain the stability of the focused light spot and the accuracy of the sintering path. The in-situ lunar soil composition and physical properties vary from place to place, and direct sintering may cause problems such as low strength of the formed body, easy cracking, or uneven shrinkage, and there is a lack of means to adaptively pretreat and modify the original material to optimize its sintering performance.

[0018] Therefore, the embodiments of the present application provide a lens light condensation sintering lunar soil forming device and a control method, which make full use of in-situ resources on the moon to complete construction activities and provide ideas for lunar infrastructure construction problems.

[0019] The lens spotlight sintering moon soil forming device and the control method of the embodiment of the present application are described below with reference to the drawings. In view of the lack of conditions for the lunar construction activities mentioned in the background art, the present application provides a lens spotlight sintering moon soil forming device, which comprises a mobile device body for moving the lens spotlight sintering moon soil forming device; a motion platform, a processing device and a powder laying device arranged on the mobile device body; a lens spotlight is arranged on the motion platform, and the six-axis motion platform controls the multi-directional translation and multi-angle rotation of the lens spotlight to change the position of the focused light spot of the lens spotlight; the processing device forms the moon soil raw material into a powder material suitable for sintering; the powder laying device lays a layer of powder material on the plane where the focused light spot is located, and the lens spotlight sintering powder material moon soil is moved, and the laying action and the sintering action are repeated until a predetermined structure is formed. Thus, the high cost of the spacecraft makes it impossible to carry large amount and heavy equipment and materials to the moon, and the lunar construction activities lack conditions and other problems are solved.

[0020] The lens spotlight sintering moon soil forming device according to the embodiment of the present application is described below with reference to the drawings.

[0021] Figure 1 The lens spotlight sintering moon soil forming device according to the embodiment of the present application is described below with reference to the drawings.

[0022] As shown in the figure, the lens spotlight sintering moon soil forming device 10 comprises a mobile device body 110, a motion platform 120, a processing device 130, a powder laying device 140 and a lens spotlight 150.

[0023] The mobile device body 110 is used to move the lens spotlight sintering moon soil forming device 10; the motion platform 120, the processing device 130 and the powder laying device 140 are arranged on the mobile device body; the lens spotlight 150 is arranged on the motion platform 120, and the six-axis motion platform 120 controls the multi-directional translation and multi-angle rotation of the lens spotlight 150 to change the position of the focused light spot of the lens spotlight 150; the processing device 130 forms the moon soil raw material into a powder material suitable for sintering; the powder laying device 140 lays a layer of powder material on the plane where the focused light spot is located, and the lens spotlight 150 sintering powder material moon soil is moved, and the laying action and the sintering action are repeated until a predetermined structure is formed.

[0024] It can be understood that the mobile device body 110 is used to carry the motion platform 120, the processing device 130 and the powder laying device 140 arranged thereon. The mobile device body 110 adopts a high-passability chassis, has the functions of autonomous navigation and obstacle avoidance, and can be moved to a target working position on the lunar surface when the lens spotlight sintering lunar soil forming device 10 starts to work. For example, when the lens spotlight sintering lunar soil forming device 10 completes spotlight sintering on the current lunar soil, the mobile device body 110 needs to be moved to the next target location. During the movement, if uneven lunar surface is encountered, the mobile device body 110 will perform obstacle avoidance to ensure smooth progress.

[0025] When the lens spotlight sintering lunar soil forming device 10 works on the lunar surface, due to the ups and downs of the lunar surface, the lens spotlight 150 may not be able to focus due to angle and direction problems, so the motion platform 120 is used to compensate for the ups and downs of the lunar surface. The motion platform 120 is built on the mobile device body 110 and supported by the base of the mobile device body 110. The motion platform 120 is composed of an upper platform, long-range push rods, a chassis and a fixed support. The upper platform is generally annular, connected with multiple push rods below to realize accurate control of motion in space, and the annular surface is fixed with the lens spotlight 150 and controls the multi-directional translation and multi-angle rotation of the lens spotlight 150 to change the position of the focused light spot of the lens spotlight 150; the long-range push rods are used to connect the upper platform and the base, and multiple long-range push rods cooperatively control the multi-degree-of-freedom spatial pose adjustment of the upper platform and the lens spotlight 150; the chassis and the fixed support are used to fix the position of the six-axis motion platform device on the lunar surface, so as to keep the device position stable during the lunar surface operation.

[0026] For example, when the lens spotlight sintering lunar soil forming device 10 works, the motion platform 120 can accurately control the pose of the lens spotlight 150 in three-dimensional space, adjust the angle and direction of the lens spotlight 150, adapt to uneven lunar surface terrain, and track the change of the sun angle in real time. The motion platform 120 provides extremely high motion flexibility, can effectively compensate for the ups and downs of the lunar surface terrain and track the sun in real time, and ensures the continuous and stable progress of the construction process.

[0027] The composition and physical properties of the in-situ lunar soil have significant regional differences, and if it is directly sintered, the final shaped body may have problems such as insufficient strength, easy cracking and uneven shrinkage, which is difficult to meet the subsequent application requirements. Therefore, the processing device 130 is arranged to adaptively pretreat and modify the raw materials to optimize the sintering performance. Figure 2 As shown in the figure, the processing device 130 is fixedly installed at the front of the vehicle body of the mobile device body 110, and the processing device 130 has a feed inlet which can be connected with an external lunar soil collecting device, and is used to pretreat the lunar soil raw materials to form powder materials suitable for sintering.

[0028] For example, after lunar soil is collected by external sampling equipment, it is sent to processing device 130. After pretreatment in processing device 130, it proceeds to the next step. Through adaptive pretreatment of raw materials, the purity and uniformity of lunar soil are optimized, performance fluctuations are reduced, and sintering performance is improved. At the same time, using lunar soil material from the lunar surface as the raw material for sintering greatly reduces the material requirements for molding, avoids carrying large amounts of basic construction materials on the moon, and reduces the cost of lunar construction.

[0029] After pretreatment by the processing device 130, the composition of the lunar soil is optimized. However, if it is directly laid into the sintering area, uneven thickness may occur, leading to uneven sintering. Therefore, a powder spreading device 140 is installed to spread the pretreated lunar soil and control the layer thickness. Figure 2 As shown, the powder spreading device 140 is located in the middle and rear of the mobile device body 110, and the sintering operation area is directly below it.

[0030] For example, pretreated lunar soil material is transported to the storage bin of the powder spreading device 140 through a closed spiral conveyor pipe. The powder spreading device 140 moves horizontally to evenly spread the powder in the working area. The motion platform 120 drives the lens condenser 150 to move, adjusting the fine posture to maximize the energy density of the focused light spot, at which point the first sintering is performed. After the first sintering is completed, the motion platform 120 lifts and moves the lens condenser 150 to make room for the work, and the powder spreading device 140 performs the next powder spreading. New powder covers the solid lower layer that has already been sintered, and this "powder spreading-sintering" cycle is repeated until the three-dimensional solid structure required by the design is formed layer by layer. By setting up the powder spreading device 140 to spread and level the material, the additive manufacturing method of "layer-by-layer powder spreading-focused sintering" is realized, avoiding problems such as uneven sintering.

[0031] According to one embodiment of this application, the lens condenser 150 includes at least one of a condensing convex lens, an array-type condenser, and a reflective condenser.

[0032] Understandably, the lens concentrator 150 is used to concentrate sunlight and focus it to heat the lunar soil. The lens concentrator 150 consists of a concentrator body and a concentrator connection interface. The concentrator body includes, but is not limited to, a concentrating convex lens, an array-type concentrator, and a reflective concentrator, among other devices, used to concentrate solar energy. The instrument can be supported by a lightweight composite material frame and have a radiation-resistant aging-proof coating suitable for the lunar environment.

[0033] For example, the lens concentrator 150 adopts a lightweight frame to support a large-size Fresnel lens sheet as the core light-concentrating element. The Fresnel lens is expected to be designed with a diameter of 1-2 meters and a focal length of 2-3 meters. The device can converge parallel sunlight into a high-energy-density light spot, which is sufficient to melt lunar soil particles. Using large-size lens concentration as the heating forming method, solar energy is directly converted into heat energy, with high energy utilization efficiency and large energy density, which can greatly improve the lunar soil solidification forming efficiency.

[0034] According to an embodiment of the present application, the lens concentrator 150 adapts the focal length and aperture ratio based on the lunar surface gravity environment and solar radiation environment.

[0035] It can be understood that the lens concentrator 150 is made of lightweight and high-transmittance material, and its key parameters such as focal length and aperture ratio are adapted to the lunar surface low-gravity and high-solar-radiation environment. For example, when the lens concentrator 150 is working, the central controller calculates the accurate position of the sun at the current time according to the orbital mechanics model and real-time attitude sensor data. The motion platform 120 drives the lens concentrator 150 to move and accurately position it at a vertical height of the lens focus from the powder bed, and adjusts the detailed attitude to maximize the energy density of the lens focus light spot. The lunar surface environment has very high requirements for the reliability of the device. This adaptation method improves the adaptability and precision of the device, and improves the precision of the lens concentration sintering lunar soil forming device.

[0036] According to an embodiment of the present application, the motion platform 120 has at least six degrees of freedom to realize the positioning and angle adjustment of the lens concentrator in three-dimensional space.

[0037] It can be understood that the lunar surface is uneven and the angle of the sun changes continuously, so the device needs to be able to perform large-range, multi-degree-of-freedom precise motion to maintain the stability of the focused light spot and the accuracy of the sintering path. The motion platform 120 is used to accurately control the pose of the lens concentrator 150 in three-dimensional space (including multi-directional translation and multi-angle rotation) to adapt to the uneven terrain of the lunar surface and track the change of the sun angle in real time.

[0038] For example, as shown in Figure 3 The motion platform 120 is fixedly connected to the platform base of the mobile device body 10 through its base and the fixed support 180. The motion platform 120 adopts a parallel mechanism configuration, which includes an upper platform 160 and a plurality of long-range push rods 170 connected by hinges. Each long-range push rod 170 is a set of high-precision servo electric cylinders, which can drive the upper platform 160 to move in six degrees of freedom in three-dimensional space (three translational degrees of freedom and three rotational degrees of freedom) through coordinated extension and retraction, to realize large-range, high-precision pose adjustment function, effectively ensure that the concentrated light spot is always perpendicular to the working plane, and then maintain stable heating efficiency.

[0039] According to an embodiment of the present application, the processing device 130 comprises a screening module, a sorting module and a mixing module, wherein the screening module is configured to screen and separate the lunar soil particles into a plurality of particle size ranges, and output a powder material of a target particle size range; the sorting module is configured to extract mineral components suitable for spotlight sintering from the powder material of the target particle size range; and the mixing module is configured to add sintering aids to the mineral components suitable for spotlight sintering.

[0040] It can be understood that the processing device 130 is configured to pretreat the original lunar soil to optimize its sintering performance. The processing device 130 comprises a screening module configured to separate the lunar soil particles into a target particle size range to obtain a homogeneous powder; a sorting module configured to selectively extract a plurality of mineral components in the lunar soil by relying on a density difference separation method or a magnetic difference separation method, and efficiently enrich target minerals with good sintering performance; and a mixing module configured to add sintering aids (such as aluminum powder, titanium powder, magnesium oxide, etc.) or binders to the lunar soil. For example, when the device pretreats the lunar soil, the input lunar soil raw material is first subjected to multi-stage screening by the screening module to obtain a particle size distribution material meeting the sintering requirements, then the multi-mineral components in the input lunar soil material are sorted by the sorting module, and finally the possible additives are mixed in proportion by the mixing module to obtain a powder raw material suitable for sintering. By providing the three modules, a stable material basis is laid for the subsequent processing steps, the raw material adaptability of the subsequent sintering process is improved, the molten fluidity and the final forming strength are improved, and the performance requirements are met.

[0041] According to an embodiment of the present application, the sintering aid comprises inorganic binder material and / or organic binder material.

[0042] It can be understood that the sintering aid added by the mixing module includes but is not limited to aluminum powder, titanium powder, magnesium oxide and other inorganic binder materials or organic binder materials. For example, if the lunar soil raw material is not sintered sufficiently during the sintering process, appropriate sintering aids such as aluminum powder, titanium powder, magnesium oxide, etc. can be added to help sintering and improve sintering efficiency.

[0043] According to an embodiment of the present application, the powder laying device 140 comprises a laying mechanism, a feeding system and a control module. The laying mechanism is configured to lay a uniform and horizontal layer of powder material on the plane where the focused light spot is located; the feeding system is configured to continuously deliver powder material to the sintering area within the movement path range of the plane where the focused light spot is located, and cooperate with the laying mechanism to achieve uniform and flat laying; and the control module is configured to control the thickness of the single layer of powder by mechanical scraper and / or vibration compaction.

[0044] It can be understood that the lunar soil material processed by the processing device 130 is transported to the storage bin of the powder laying device 140 through a closed spiral conveying pipe. The working principle of the powder laying device 140 is that the powder material is continuously transported to the sintering area within the movement path range of the plane where the focused light spot is located through the feeding system, and the powder laying system lays the powder material into a uniform horizontal layer, and the control module controls the single-layer powder laying thickness by mechanical scraper and / or vibration compaction.

[0045] For example, after the lunar soil enters the powder laying device 140, the lens spotlight sintering lunar soil forming equipment 10 is ready to carry out the first layer of powder laying and sintering, the scraper of the control module of the powder laying device 140 is lowered to a position away from the lunar surface reference height, the powder laying device 140 moves horizontally to uniformly lay the powder in the working area, and the single-layer powder laying thickness is controlled by mechanical scraper or vibration compaction, with an accuracy of at least 1 mm. The lens spotlight 150 is adjusted to an appropriate attitude and position to maximize the energy density of the lens focused light spot, and the movement platform 120 drives the focused light spot to scan on the powder bed according to the predetermined sintering path. The powder laying device 140 precisely controls the single-layer powder laying thickness to make the structure more stable.

[0046] According to an embodiment of the present application, the powder laying device 140 cooperates with the movement platform 120 to automatically carry out the next layer of powder laying after the movement platform 120 completes the movement path of single-layer sintering and solidification, until the predetermined structure is formed.

[0047] It can be understood that the powder laying device 140 is used to realize uniform and flat laying of the lunar soil. The powder laying device 140 cooperates with the movement platform 120 to automatically carry out the next layer of powder laying after the movement platform 120 completes the movement path of single-layer sintering and solidification. For example, after the first layer of sintering is completed, the movement platform 120 drives the lens spotlight 150 to lift and move away to leave a working space; the powder laying device 140 carries out the next powder laying, and the new powder layer covers the solidified lower layer that has been sintered; the movement platform 120 is precisely positioned again to carry out the scanning sintering of the next layer. The newly sintered layer is firmly fused and bonded with the lower layer. The “powder laying-sintering” cycle is repeated until the three-dimensional entity structure (such as a landing pad, a foundation, a wall, etc.) required by the design is formed layer by layer; after the entire structure construction is completed, the mobile device body 110 moves to the next position to continue the work. The lens spotlight sintering lunar soil forming equipment 10 integrates the functions of powder laying and spotlight sintering to realize the automation of the process of processing and sintering construction.

[0048] According to an embodiment of the present application, the mobile device body 110 includes a solar auxiliary power supply system, at least one of a tracked and wheeled chassis.

[0049] It can be understood that the mobile device body 110 adopts a tracked or wheeled chassis to ensure stability during lunar travel, has autonomous navigation and obstacle avoidance functions, and can effectively ensure the safe and normal operation of the device. The solar energy auxiliary power supply system is used to convert solar energy into electrical energy to provide power for the lens light concentrating sintering lunar soil forming device and drive the device to operate normally. For example, the mobile device body 110 in one embodiment is composed of a solar energy auxiliary power supply system and a tracked chassis, and the solar energy auxiliary system provides power for the mobile device body to generate electricity. During the travel process, the tracked chassis has super lunar adaptability and can pass through complex terrain without pressure. This composition improves the stability and adaptability of the lens light concentrating sintering lunar soil forming device during lunar travel.

[0050] According to the lens light concentrating sintering lunar soil forming device 10 provided by the embodiment of the present application, the lunar solar energy resources and lunar soil resources are utilized, the energy cost and material cost of lunar construction are greatly reduced, and efficient direct use of energy is realized; pure lunar soil or lunar soil mixture with less additional agent is sintered and solidified, the transportation cost of lunar construction materials is greatly reduced; large-size lens light concentration is used as a heating forming means, solar energy can be directly converted into heat energy without complex energy secondary conversion, the system energy utilization efficiency is high, the energy utilization density is improved, and the lunar soil solidification and forming efficiency can be significantly improved. Compared with other sintering and forming or additive manufacturing schemes, the efficiency is improved, thereby improving the efficiency of lunar construction. Thus, the problems of high cost of spacecraft, inability to carry large amount and heavy equipment and materials to the moon, lack of conditions for construction activities, etc. are solved.

[0051] The working process of the lens light concentrating sintering lunar soil forming device will be described below through a specific embodiment, as follows: 1. The mobile device body 110 travels to the predetermined construction site and stabilizes the vehicle body on the lunar surface through the leveling mechanism.

[0052] 2. Collect the in-situ lunar soil and send it to the processing device 130. After screening, sorting and mixing with additives, the lunar soil is made into sinterable powder and sent to the storage bin of the powder laying device 140 through the conveying pipeline.

[0053] 3. First Layer Powder Spreading and Sintering: The scraper of the powder spreading device 140 descends to a position above the lunar surface reference height. The powder spreading device 140 moves horizontally, spreading the powder evenly within the working area. The central controller calculates the precise position of the sun at the current moment based on the orbital mechanics model and real-time attitude sensor data. The motion platform 120 drives the lens condenser 150 to move, precisely positioning it at a position vertically above the powder bed equal to the lens's focal length, and adjusts its detailed attitude to maximize the energy density of the focused light spot. The motion platform 120 moves the focused light spot along a predetermined sintering path, scanning the powder bed. Wherever the light spot reaches, the lunar regolith powder is instantly heated and melted, forming a dense, solid sintered layer upon cooling.

[0054] 4. Layer-by-layer additive manufacturing: After the first layer is sintered, the motion platform 120 lifts and moves the lens condenser 150 to make room for operation; the powder spreading device 140 performs the next powder spreading, with new powder covering the solidified lower layer that has already been sintered; the motion platform 120 is precisely positioned again to perform the scanning sintering of the next layer. The new sintered layer is firmly fused and bonded to the lower layer; this "powder spreading-sintering" cycle is repeated until the required three-dimensional solid structure is formed layer by layer.

[0055] 5. After the entire structure is completed, the mobile equipment body 110 is moved to the next position to continue the operation.

[0056] In summary, the embodiments of this application, through the coordinated operation of the mobile device body 110, motion platform 120, processing device 130, powder spreading device 140, and lens concentrator 150, successfully achieved the goal of automated and efficient additive construction using in-situ solar energy and lunar soil resources in the lunar environment.

[0057] Next, referring to the accompanying drawings, a control method for a lens-focusing sintering lunar soil forming device according to an embodiment of this application is described.

[0058] like Figure 4 As shown, the control method of the lens-focusing sintering lunar soil forming equipment includes the following steps: In step S101, the mobile device body 110 is controlled to move the lens focusing sintering lunar soil forming device to the target area.

[0059] In step S102, the lunar soil raw material in the target area is processed into a powder material suitable for sintering by the processing device 130.

[0060] In step S103, the lens condenser 150 is controlled by the motion platform 120 to move in multiple directions and rotate at multiple angles to change the position of the focused light spot of the lens condenser 150, a layer of powder material is laid on the plane where the focused light spot is located by the powder laying device 140, the sintering powder material lunar soil is moved by the lens condenser 150, and the laying action and the sintering action are repeated until the predetermined structure is formed.

[0061] It should be noted that the foregoing explanation and description of the lens condensing sintering lunar soil forming equipment embodiment also applies to the control method of the lens condensing sintering lunar soil forming equipment of this embodiment, which will not be described here.

[0062] According to the control method of the lens condensing sintering lunar soil forming equipment provided in the embodiments of the present application, the lunar local resources and solar energy technology are deeply integrated to build a low-cost and high-efficiency lunar construction system. The two types of original resources, lunar solar energy and lunar soil, are fully utilized to greatly reduce the cost of energy supply and basic material acquisition, and realize efficient direct use of energy; pure lunar soil or a mixture of lunar soil with a small amount of additional agent is used as raw material, and a sintering solidification process is used to prepare construction materials, which greatly reduces the cost of transporting materials from the earth to the moon; and a large-size lens condensing technology is used as a heating forming means to directly convert solar energy into heat energy without complex energy conversion, so that the system has high energy utilization efficiency, the equipment can realize direct use of energy, and the energy utilization density is improved. This method not only has high energy utilization efficiency, but also has excellent energy density advantage, which can significantly improve the efficiency of lunar soil solidification and forming. Compared with other sintering forming or additive manufacturing schemes, the efficiency is improved, thereby improving the efficiency of lunar construction. Thus, the high cost of spacecraft makes it impossible to carry large amount and weight of equipment and materials to the moon, and the lunar construction activity lacks conditions and other problems are solved.

[0063] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0064] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated technical features. Thus, a feature defined with "first", "second", etc. can include at least one of the feature, explicitly or implicitly. In the description of the present application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0065] Any process or method descriptions or blocks in flow charts described herein and elsewhere can be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process. Alternate implementations are included within the scope of the preferred embodiments of the present application in which additional functionality can be added or some functionality can be removed, by adding, removing or modifying the process steps described and / or by adding or removing portions of the code. Modifications to the process of the preferred embodiments can be understood to be within the scope of the present application.

[0066] It should be understood that aspects of the present application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, steps or methods can be implemented in software or firmware which is stored in memory and executed by a suitable instruction execution system. If implemented in hardware, and as in another embodiments, any of the above techniques can be implemented with or without accompanying software or in software / firmware in combination with one or more additional techniques now known or later developed, including but not limited to the following: discrete logic circuitry having logic gates for implementing logic functions upon data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays, field programmable gate arrays, and the like.

[0067] Those of skill in the art would understand that information and signals can be represented using any of a variety of technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0068] While embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are merely illustrative of and not restrictive on the present application, and that one of ordinary skill in the art can make changes, modifications, substitutions and variations of the above-described embodiments within the scope of the present application.

Claims

1. A lens-focusing sintering lunar soil forming device, characterized in that, include: The mobile device body is used to move the lens-focusing sintering lunar soil forming device; Motion platform, processing device, and powder spreading device installed on the mobile device itself; A lens condenser is provided on the motion platform. The motion platform controls the lens condenser to translate in multiple directions and rotate at multiple angles to change the position of the focused spot of the lens condenser. The processing device processes lunar soil raw materials into powder materials suitable for sintering; The powder spreading device lays a layer of the powder material on the plane where the focused spot is located, moves the lens condenser to sinter the powder material, and repeats the laying and sintering actions until a predetermined structure is formed.

2. The lens-focusing sintering lunar soil forming equipment according to claim 1, characterized in that, The lens concentrator includes at least one of a convex concentrator lens, an array-type concentrator, and a reflective concentrator.

3. The lens-focusing sintering lunar soil forming equipment according to claim 1 or 2, characterized in that, The lens condenser is adapted to the focal length and aperture ratio based on the lunar gravity environment and solar irradiation environment.

4. The lens-focusing sintering lunar soil forming equipment according to claim 1, characterized in that, The motion platform has at least six degrees of freedom to enable the lens condenser to be positioned and its angle adjusted in three-dimensional space.

5. The lens-focusing sintering lunar soil forming equipment according to claim 1, characterized in that, The processing device includes a screening module, a sorting module, and a mixing module, wherein... The screening module is used to screen and separate lunar soil particles into multiple particle size ranges and output powder materials of the target particle size range. The sorting module is used to extract mineral components suitable for concentrated photoluminescence sintering from powder materials within the target particle size range; The mixing module is used to add sintering aids to mineral compositions suitable for concentrated light sintering.

6. The lens-focusing sintering lunar soil forming equipment according to claim 5, characterized in that, The sintering aids include inorganic binder materials and / or organic binder materials.

7. The lens-focusing sintering lunar soil forming equipment according to claim 1, characterized in that, The powder spreading device includes: a spreading mechanism, a feeding system, and a control module, wherein... The tiling mechanism is used to lay a uniform horizontal layer of the powder material on the plane where the focused light spot is located; The feeding system is used to continuously feed the powder material into the sintering area within the plane movement path range of the focused spot, and cooperates with the spreading mechanism to achieve uniform and flat spreading; The control module is used to control the thickness of a single layer of powder by means of mechanical scraper and / or vibration compaction.

8. The lens-focusing sintering lunar soil forming equipment according to claim 7, characterized in that, The powder spreading device works in conjunction with the motion platform. After the motion platform completes the motion path of single-layer sintering and solidification, the powder spreading device automatically performs the next layer of powder spreading operation until the predetermined structure is formed.

9. The lens-focusing sintering lunar soil forming equipment according to claim 1, characterized in that, The mobile device body includes at least one solar-assisted power supply system and a tracked and wheeled chassis.

10. A control method for a lens-focusing sintering lunar soil forming device, characterized in that, The method is used to control the lens-focusing sintering lunar soil forming equipment according to any one of claims 1-9 to perform lunar soil sintering and solidification, wherein the method includes the following steps: Control the mobile device body, move the lens to focus the light, sinter the lunar soil forming equipment, and move it to the target area; The lunar soil raw material from the target area is processed into a powder material suitable for sintering using a processing device; The lens condenser is controlled by a six-axis motion platform to translate and rotate in multiple directions and at multiple angles to change the position of the focused spot of the lens condenser. A layer of powder material is laid on the plane where the focused spot is located by the powder laying device. The lens condenser is moved to sinter the powder material. The laying and sintering actions are repeated until the predetermined structure is formed.

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