Lunar surface in-situ automatic lunar soil fiber preparation device and method

Abstract

The invention discloses a lunar surface in-situ automatic lunar soil fiber preparation device and method, and belongs to the field of lunar in-situ resources. The device comprises an equipment side plate, a feed hopper and a crucible which are distributed up and down are arranged on the equipment side plate, a feed screw is arranged in the feed hopper, and lunar soil can be conveyed into the crucible; a heating coil is arranged on the outer side of the crucible to heat and melt lunar soil; a nozzle is arranged at the bottom of the crucible; a winder capable of rotating is arranged at the lower end of the equipment side plate, the position of the winder in the vertical direction and the position of the winder in the horizontal direction are adjustable, and a traction plug is arranged at the end of the winder. When lunar soil is heated and melted, the winder ascends to enable the traction plug to plug the nozzle; when fiber winding is carried out, the traction plug is used for directionally pulling fibers during initial fiber forming; the temperature of the lunar soil melt is efficiently controlled by controlling the position of the crucible, and the self-adaptive control of the fiber diameter is realized by controlling the winding speed, so that the stable preparation and collection of continuous fibers in the lunar surface environment are realized.

Description

Technical Field

[0001] The present invention belongs to the field of lunar in-situ resource utilization, and specifically relates to an in-situ automated lunar soil fiber preparation device and method. Background Art

[0002] As human beings continue to explore space, the moon, as the closest celestial body to the earth, has become an important research and development target. Various countries and organizations have proposed plans to establish bases and scientific research stations on the surface of the moon, deploy and build various infrastructures, provide effective protection for precision detection equipment, and provide astronauts with a stable living environment to achieve normalized lunar scientific research activities. Due to the high cost of transportation between the earth and the moon, both weight and volume are greatly restricted during transportation. By obtaining resources in situ on the moon to carry out related manufacturing and construction, the limitations of carrying capacity will be effectively solved, supporting the long-term sustainable operation of lunar bases and scientific research stations.

[0003] The lunar surface contains abundant lunar soil resources, which are significantly similar to basalt on Earth in terms of chemical composition, mineral composition, and physical properties. The preparation of fibers from basalt on the ground is a relatively mature technical system, which provides a certain theoretical basis for the preparation of lunar soil fibers. Due to factors such as the extreme lunar environment, the spatial distribution differences of lunar soil components, and the difficulty of human control, it is urgent to develop automated lunar soil fiber preparation technology suitable for the lunar environment. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an in-situ automated lunar soil fiber preparation device and method on the lunar surface, which solves the problems in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A lunar surface in-situ automated lunar soil fiber preparation device comprises a device side plate, on which a feed hopper and a crucible are arranged in an upper and lower distribution, a feed screw is arranged in the feed hopper, and the lunar soil can be transported into the crucible; a heating coil is arranged outside the crucible to heat and melt the lunar soil; a nozzle is arranged at the bottom of the crucible;

[0007] A rotatable winder is provided at the lower end of the side plate of the equipment. The position of the winder in the vertical and horizontal directions is adjustable, and a traction plug is provided at the end of the winder. When the lunar soil is heated and melted, the winder rises so that the traction plug can seal the nozzle. When fiber winding is performed, the traction plug directional pulls the fibers during initial fiberization.

[0008] Furthermore, a heat-insulating layer is arranged outside the heating coil, and a movable heat-insulating layer capable of being raised and lowered is arranged at the lower end of the crucible, and the movable heat-insulating layer can be driven to rise and fall synchronously.

[0009] Furthermore, a wire diameter sensor is provided below the nozzle;

[0010] A guide rod and a movable guide rod are also installed on the side plate of the equipment. The guide rod and the movable guide rod are located below the wire diameter sensor and are used to constrain the fiber position.

[0011] Furthermore, a wire diameter measuring motor is provided on the side plate of the device to drive the movable guide rod to move horizontally, and the movable guide rod is fixedly connected to the wire diameter sensor;

[0012] When the fiber is initially pulled, the movable guide rod and the wire diameter sensor are close to the side plate of the equipment; when the winder descends to the lowest position, the movable guide rod and the wire diameter sensor move outward to be flush with the guide rod to constrain the fiber position.

[0013] Furthermore, a plurality of holes are opened on the nozzle, and a plurality of blocking needles are arranged on the traction plug, and the blocking needles can correspond to and block the holes one by one.

[0014] Furthermore, the device also includes an equipment base plate, a horizontal guide rail is fixed on the equipment base plate, and a vertical guide rail capable of horizontal sliding is arranged on the horizontal guide rail; the winder is installed on the vertical guide rail and can be raised and lowered along the vertical guide rail.

[0015] Furthermore, the crucible is made of high temperature resistant ceramic material and is equipped with a temperature sensor for temperature control;

[0016] The heating coil is a molybdenum wire heating wire or an induction heating coil;

[0017] The nozzle is made of platinum-rhodium alloy and is equipped with a temperature sensor for temperature control.

[0018] Furthermore, the traction plug is made of molybdenum rod or high temperature resistant ceramic.

[0019] A method for preparing lunar soil fiber in situ on the lunar surface automatically, using the above-mentioned device for preparing lunar soil fiber in situ on the lunar surface, comprises the following steps:

[0020] S1, control the winder to rise until the traction plug just blocks the nozzle, and transport the lunar soil into the crucible through the feeding hopper and the feeding screw. The heating coil is energized to heat and melt the lunar soil in the crucible; then control the movable insulation layer and the crucible to move downward, and the winder moves downward synchronously, and the nozzle temperature is controlled to be in the range of 1200℃-1400℃;

[0021] S2, controlling the winder to move downward to pull out the lunar soil fiber until it reaches the lowest position;

[0022] S3, controlling the movable guide rod and the wire diameter sensor to move outwards until they are flush with the guide rod; the wire diameter sensor feeds back the fiber wire diameter data, controls the winder rotation speed, and realizes the target wire diameter control;

[0023] S4, controlling the winder to move horizontally to wind the fiber evenly, and after the winding is completed, the winder is reset.

[0024] Furthermore, in S1, the temperature at which the lunar soil is heated and melted is greater than 1500°C.

[0025] Beneficial effects of the present invention:

[0026] 1. The lunar soil fiberization in the present invention has wide applicability to different lunar soil components. The melting points and high-temperature melting viscosity characteristics of lunar soils with different components vary greatly, and the corresponding suitable fiberization temperature ranges vary greatly. By controlling the temperature at the nozzle outlet and the melting zone, it can dynamically adapt to lunar soils with different components over a wide range.

[0027] 2. The lunar soil fiber-forming process of the present invention can realize self-closed-loop control of the entire process. The lunar soil fiber-forming process involves the control of parameters such as temperature, wire diameter, traction speed, and winding movement speed. The process self-closed-loop control is realized by setting the control logic relationship between each control motor and the relevant sensor feedback data.

[0028] 3. The lunar soil fiberization process in the present invention can be automated and unmanned. During the processes of raw material delivery, initial traction, dynamic winding, etc., the timing and spatial motion logic of each structural mechanism are designed to achieve full-process automated unmanned operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the in-situ automated lunar soil fiber preparation device on the lunar surface;

[0031] Figure 2 It is a schematic diagram of the matching of different types of nozzles and traction plugs;

[0032] Figure 3 It is a schematic diagram of the initial position of the movable guide rod and the wire diameter sensor;

[0033] Figure 4 This is a schematic diagram of crucible and nozzle temperature control;

[0034] Figure 5 Schematic diagram of the lunar soil fiberization process.

[0035] In the figure: 1-feed hopper, 2-feed screw, 3-insulation layer, 4-heating coil, 5-crucible, 6-nozzle, 7-movable insulation layer, 8-wire diameter sensor, 9-guide rod, 10-movable guide rod, 11-vertical guide rail, 12-vertical motor, 13-horizontal guide rail, 14-horizontal motor, 15-winder, 16-winding motor, 17-traction plug, 18-lunar soil, 19-robotic arm, 20-lunar soil melt, 21-fiber, 22-temperature control positioning motor, 23-equipment side panel, 24-wire diameter measurement positioning motor. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figure 1 and Figure 3 As shown, an in-situ automated lunar soil fiber preparation device on the lunar surface includes an equipment side panel 23, on which a feed hopper 1 and a crucible 5 are arranged in an upper and lower distribution, a feed screw 2 is arranged in the feed hopper 1, and lunar soil 18 is fed into the feed hopper 1 through a robotic arm 19, and enters the crucible 5 under the transportation of the feed screw 2; the feed screw 2 is used to achieve stable and quantitative addition of lunar soil; a heating coil 4 is arranged on the outside of the crucible 5, and an insulation layer 3 is arranged on the outside of the heating coil 4, and the heating coil 4 can heat the lunar soil in the crucible 5 to form a lunar soil melt 20; a nozzle 6 is arranged at the bottom of the crucible 5, and a plurality of holes are arranged at the bottom of the nozzle 6 as a filament outlet for the lunar soil melt, and the nozzle 6 can spray the lunar soil melt into fibers 21.

[0039] like Figure 4 As shown, a movable insulation layer 7 capable of being raised and lowered is provided at the lower end of the crucible 5, thereby driving the lifting and lowering adjustment of the crucible 5 to control the relative position of the crucible 5 and the heating coil 4, and further controlling the temperature of the crucible 5 and the nozzle 6; in this embodiment, a temperature control positioning motor 22 is provided on one side of the insulation layer 3 to drive the movable insulation layer 7 to be raised and lowered, and drive the crucible 5 to be raised and lowered.

[0040] In this embodiment, the crucible 5 is made of high temperature resistant ceramic material and is equipped with a temperature sensor for temperature control. The heating coil 4 is a molybdenum wire heating wire or an induction heating coil. The nozzle 6 is made of platinum rhodium alloy and is equipped with a temperature sensor for temperature control.

[0041] A winder 15 is provided at the lower end of the equipment side plate 23. A winding motor 16 is provided on one side of the winder 15 to drive the winder 15 to rotate, thereby realizing the winding and collection of the fibers. The position of the winder 15 in the vertical and horizontal directions is adjustable. A traction plug 17 is provided at the end of the winder 15. Figure 2 As shown, a plurality of blocking needles are provided on the traction plug 17, and when the lunar soil 18 is heated and melted, the winder 15 is controlled to rise so that the plurality of blocking needles on the traction plug 17 can respectively block a plurality of holes on the nozzle 6; when fiber winding is required, the traction plug 17 performs directional traction on the fibers during initial fiberization; and during winding, the winder 15 is controlled to move horizontally to achieve uniform winding and collection of the fibers 21.

[0042] The lunar surface in-situ automated lunar soil fiber preparation device also includes a device base plate. In the present embodiment, a horizontal guide rail 13 is fixed on the device base plate, a vertical guide rail 11 capable of horizontal sliding is arranged on the horizontal guide rail 13, and a horizontal motor 14 is arranged on the horizontal guide rail 13 to drive the vertical guide rail 11 to move horizontally; a winder 15 is installed on the guide rail 11 and can be raised and lowered along the vertical guide rail 11, and a vertical motor 12 is arranged on the vertical guide rail 11 to drive the winder 15 to be raised and lowered; thereby, the winder 15 can be adjusted in the horizontal and vertical directions.

[0043] In this embodiment, the traction plug 17 is made of molybdenum rod or high temperature resistant ceramic.

[0044] like Figure 3 As shown, a fiber diameter sensor 8 is provided below the nozzle 6 for monitoring the fiber diameter and cooperating with the winding motor 16 to control the fiber diameter by different rotation speeds.

[0045] A guide rod 9 and a movable guide rod 10 are also installed on the side plate 23 of the equipment. The guide rod 9 and the movable guide rod 10 are located below the wire diameter sensor 8 and are used to constrain the fiber position. The winder 15 moves horizontally to achieve uniform fiber winding and collection.

[0046] Moreover, in the present embodiment, a wire diameter measuring advancement motor 24 is provided on the side panel 23 of the device to drive the movable guide rod 10 to move horizontally, and the movable guide rod 10 is fixedly connected to the wire diameter sensor 8; when the fiber 21 is initially pulled (the winder 15 descends to release the hole of the nozzle 6), the movable guide rod 10 and the wire diameter sensor 8 are both close to the side panel 23 of the device to avoid interference between the winder 15 and the movable guide rod 10 and the wire diameter sensor 8 when the winder 15 descends; after being pulled to the lowest position, the movable guide rod 10 and the wire diameter sensor 8 move outward to be flush with the guide rod 9 to constrain the position of the fiber 21.

[0047] Example 2

[0048] Based on the in-situ automated lunar soil fiber preparation device proposed in Example 1, this embodiment proposes an in-situ automated lunar soil fiber preparation method on the lunar surface; Figure 5 As shown, the following steps are included:

[0049] S1, such as Figure 5 As shown in (a), the winder 15 rises until the traction plug 17 just blocks the nozzle 6, and the sieved lunar soil 18 sent by the robot 19 is transported to the crucible 5 through the cooperation of the feed hopper 1 and the feed screw 2. The heating coil 4 is energized to heat the lunar soil in the crucible 5 to above 1500°C and let it stand for 2 hours. The temperature control and positioning motor 22 controls the moving insulation layer 7 and the crucible 5 to move downward, and the winder 15 moves downward synchronously to control the temperature of the nozzle 6 within the range of 1200°C-1400°C.

[0050] S2, such as Figure 5 As shown in (b), the winder 15 moves downward to pull out the lunar soil fiber 21 until it reaches the lowest position;

[0051] S3, such as Figure 5 As shown in (c), the movable guide rod 10 and the wire diameter sensor 8 move outward to be flush with the guide rod 9; the wire diameter sensor 8 feeds back the fiber wire diameter data, controls the rotation speed of the winder 15, and realizes the target wire diameter control;

[0052] S4, such as Figure 5 As shown in (c) and (d), the winder 15 moves horizontally to evenly wind the fiber. After the winding is completed, the winder is reset and the fiber roll is ready to be taken.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An in-situ automated lunar soil fiber preparation device on the lunar surface, comprising a device side plate (23), characterized in that: A feed hopper (1) and a crucible (5) are arranged on a side plate (23) of the equipment and are arranged in an upper and lower arrangement; a feed screw (2) is arranged in the feed hopper (1) and can transport lunar soil into the crucible (5); a heating coil (4) is arranged outside the crucible (5) to heat and melt the lunar soil; and a nozzle (6) is arranged at the bottom of the crucible (5); A rotatable winder (15) is provided at the lower end of the equipment side plate (23); the position of the winder (15) in the vertical and horizontal directions is adjustable; a traction plug (17) is provided at the end of the winder (15); when the lunar soil is heated and melted, the winder (15) rises so that the traction plug (17) can block the nozzle (6); when fiber winding is performed, the traction plug (17) directional traction is performed on the fibers during initial fiberization.

2. The in-situ automated lunar soil fiber preparation device according to claim 1, characterized in that: The outer side of the heating coil (4) is provided with a heat-insulating layer (3), and the lower end of the crucible (5) is provided with a movable heat-insulating layer (7) that can be raised and lowered, and synchronously drives the crucible (5) to be raised and lowered.

3. The in-situ automated lunar soil fiber preparation device according to claim 2, characterized in that: A wire diameter sensor (8) is provided below the nozzle (6); A guide rod (9) and a movable guide rod (10) are also installed on the side plate (23) of the equipment. The guide rod (9) and the movable guide rod (10) are located below the wire diameter sensor (8) and are used to constrain the position of the fiber.

4. The in-situ automated lunar soil fiber preparation device according to claim 3, characterized in that: The side plate (23) of the device is provided with a wire diameter measurement advance motor (24) to drive the movable guide rod (10) to move horizontally, and the movable guide rod (10) is fixedly connected to the wire diameter sensor (8); When the fiber is initially pulled, the movable guide rod (10) and the wire diameter sensor (8) are both close to the equipment side plate (23); when the winder (15) descends to the lowest position, the movable guide rod (10) and the wire diameter sensor (8) move outward to be flush with the guide rod (9) to constrain the fiber position.

5. The in-situ automated lunar soil fiber preparation device according to claim 1, characterized in that: The nozzle (6) is provided with a plurality of holes, and the traction plug (17) is provided with a plurality of blocking needles, which can correspond to the holes one by one and block them.

6. The in-situ automated lunar soil fiber preparation device according to claim 1, characterized in that: The device also includes an equipment bottom plate, a horizontal guide rail (13) is fixed on the equipment bottom plate, and a vertical guide rail (11) capable of horizontal sliding is arranged on the horizontal guide rail (13); the winder (15) is installed on the vertical guide rail (11) and can be raised and lowered along the vertical guide rail (11).

7. The in-situ automated lunar soil fiber preparation device according to claim 1, characterized in that: The crucible (5) is made of high temperature resistant ceramic material and is equipped with a temperature sensor for temperature control; The heating coil (4) is a molybdenum wire heating wire or an induction heating coil; The nozzle (6) is made of platinum-rhodium alloy and is equipped with a temperature sensor for temperature control.

8. The in-situ automated lunar soil fiber preparation device according to claim 1, characterized in that: The traction plug (17) is made of a molybdenum rod or high-temperature resistant ceramics.

9. A method for preparing lunar soil fiber in situ on the lunar surface automatically, using the device for preparing lunar soil fiber in situ on the lunar surface according to claim 4, characterized in that: The following steps are involved: S1, control the winder (15) to rise until the traction plug (17) just blocks the nozzle (6), and transport the lunar soil into the crucible (5) through the cooperation of the feeding hopper (1) and the feeding screw (2), and energize the heating coil (4) to heat and melt the lunar soil in the crucible (5); then control the movable insulation layer (7) and the crucible (5) to move downward, and at the same time, the winder (15) moves downward synchronously, and controls the temperature of the nozzle (6) to be in the range of 1200°C-1400°C; S2, controlling the winder (15) to move downward to pull out the lunar soil fiber (21) until it reaches the lowest position; S3, controlling the movable guide rod (10) and the wire diameter sensor (8) to move outward until they are flush with the guide rod (9); the wire diameter sensor (8) feeds back fiber wire diameter data, controls the rotation speed of the winder (15), and realizes target wire diameter control; S4, controlling the winder (15) to move horizontally to evenly wind the fiber, and after the winding is completed, the winder (15) is reset.

10. The method for preparing lunar soil fiber in situ according to claim 9, characterized in that: In S1, the temperature at which the lunar soil melts is greater than 1500°C.

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