Lunar soil storing, conveying and screening device

Abstract

The lunar soil storing, conveying and screening device comprises a frame body, a sleeve type folding screening mechanism, a discharging bin and a vibrating mechanism, the sleeve type folding screening mechanism, the discharging bin and the vibrating mechanism are arranged in the frame body, multiple sets of limiting lug plates which are arranged at intervals in the circumferential direction are arranged on the peripheral side of the frame body, and each set of limiting lug plates is correspondingly provided with an anchoring mechanism; the lower end of the sleeve type folding screening mechanism is in sealed connection with the upper end of the discharging bin through a sealing sleeve, an extending discharging part is arranged on one side of the discharging bin, and a discharging opening is formed in the bottom of the extending discharging part. The vibrating mechanism is installed at the bottom of the discharging bin, and the bottom of the discharging bin is elastically connected into the frame body through a vibrating spring. The sleeve type folding screening mechanism and the vibrating mechanism are combined, screening faces with different particle sizes can be arranged in the sleeve type folding screening mechanism and the discharging bin, layered screening of planet soil minerals is achieved, the structure can be effectively simplified, and the structure size can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of aerospace technology, specifically to a lunar soil storage, conveying, and screening device. Background Technology

[0002] Planetary soil minerals are the most crucial evidence and means for humankind to understand and utilize planets, and are the most direct research objects for accurately and deeply conducting space science research on planetary formation and evolution, the origin of life, and cosmology.

[0003] Planetary samples, categorized by scale, can be divided into various types, including rocks, gravel, debris, dust, and soil. Each type contains different scientific information and possesses varying scientific value. Dust is rich in volatiles injected by the solar wind and information on mineral weathering. Soil is a primary sample source for studying the mechanisms of planetary mineral coexistence and the formation and evolution of the Moon. Magnetic soil particles are the main sample for studying the source of multivalent metallic minerals in soil and are also key raw materials for in-situ water / oxygen extraction and metal smelting. Through the study of these samples, researchers can obtain numerous findings on planetary origins, evolutionary processes, internal structures, and material composition, establishing a basic framework for lunar science research on planetary formation and evolution, topography, and material composition. As scientific research deepens, the demand for planetary samples is becoming increasingly refined. Magnetic minerals on the lunar surface, such as ilmenite, magnetite, and nano-iron, are attracting growing attention. However, due to their extremely low abundance in the soils of some planets, directly collected and returned planetary samples cannot directly meet the growing scientific research needs.

[0004] If planetary sample sorting can be carried out on the surface of a planet, and specific components in a large number of planetary soil samples can be preliminarily enriched, the need for returned samples can be effectively reduced, and the comprehensiveness, representativeness, and scientific value of sample coverage can be improved. This will provide a personalized sample basis for innovative breakthroughs in planetary science research, planetary surface scientific experiments, and resource exploration and utilization. Therefore, it is urgent to develop planetary sample classification and screening technologies. Based on the increasingly diverse scientific research needs, sorting, screening, and enriching specific mineral components in planetary soils can not only greatly enhance the scientific research value of planetary samples, but also effectively improve sample collection efficiency, reduce the amount of low-value samples returned, and thus reduce transportation costs between Earth and planets. This will become one of the important guarantees for achieving greater scientific breakthroughs in deep space exploration missions.

[0005] A planetary soil screening and electrostatic transport load device and method for planetary surfaces (Patent No.: 202410039654.9) relates to a planetary soil screening and electrostatic transport load device and method for planetary surfaces. It mainly includes a load frame, a primary vibrating screen structure, a secondary dispersion structure, an electrostatic transport structure, and a power module. This integrates in-situ screening, transport, and waste disposal of planetary soil particles. The primary vibrating screen structure obtains planetary soil particles that meet the particle size requirements through vibration screening and stores the screened particles in the secondary dispersion structure. Waste is disposed of outside the device. The secondary dispersion structure stores a certain amount of particles to ensure printing continuity within a certain time period. Its bottom screen ensures that clumps of planetary soil powder are dispersed before entering the electrostatic transport structure. The electrostatic transport structure uses an electrostatic field to control the directional movement of the planetary soil particles, and the particles have a certain initial velocity at the outlet end of the electrostatic transport structure, overcoming the low-gravity suspension problem of the planetary soil on the planetary surface, thus accurately reaching the transport target. This solution cannot achieve multi-stage folding of storage bins to reduce volume; moreover, it lacks an eccentric vibrating screening mechanism, and the use of a two-stage screening motor results in a complex structure and high power consumption; it also cannot achieve magnetic screening.

[0006] A double-layer screen inclined vibration in-situ planetary soil screening mechanism and transportation system (Patent No.: CN202410669962.X) relates to a double-layer screen inclined vibration in-situ planetary soil screening mechanism and transportation system; the screening mechanism includes a support frame, a cover on the support frame, a feed port and a discharge port on the cover, the discharge port being connected to a coarse soil receiving hopper; an inclined screen assembly and a horizontal screen assembly are disposed within the support frame, the inclined screen being located above the horizontal screen; a fine soil receiving hopper is disposed below the horizontal screen, a support member is provided between the fine soil receiving hopper and the support frame; a base is located at the bottom of the fine soil receiving hopper and is slidably connected to the fine soil receiving hopper, a driving structure is provided within the base, the driving structure is connected to one end of an eccentric vibration assembly, and one end of the eccentric vibration assembly is connected to the support member. The structure is relatively simple, avoiding mechanical malfunction. It also allows for secondary screening of planetary soil, using standards for physicochemical testing and analysis in associated instruments and planetary soil product preparation as the basis for particle size separation. Secondary screening of the planetary soil is performed through microgravity and vibration. However, this solution lacks a foldable material hopper and magnetic separation device. Summary of the Invention

[0007] In order to solve one or more technical problems existing in the prior art, the present invention provides a lunar soil storage, conveying and screening device.

[0008] The technical solution of the present invention to solve the above technical problems is as follows: A lunar soil storage, conveying and screening device includes a frame body and a sleeve-type folding screening mechanism, a discharge bin and a vibration mechanism arranged in the frame body. The outer periphery of the frame body is provided with multiple sets of circumferentially spaced limiting ear plates, and each set of limiting ear plates is correspondingly installed with an anchoring mechanism. The lower end of the sleeve-type folding screening mechanism is sealed to the upper end of the discharge bin through a sealing sleeve. An extended discharge section is provided on one side of the discharge bin, and a discharge port is provided at the bottom of the extended discharge section. The vibration mechanism is installed at the bottom of the discharge hopper, and the bottom of the discharge hopper is elastically connected to the frame body by a vibration spring.

[0009] The beneficial effects of this invention are as follows: The lunar soil storage, conveying, and screening device of this invention combines a sleeve-type folding screening mechanism and a vibration mechanism. Different particle sizes can be set in the sleeve-type folding screening mechanism and the discharge hopper to achieve stratified screening of planetary soil minerals, effectively simplifying the structure and reducing its size. By setting an anchoring mechanism, the entire device can be stably anchored to the planetary surface during vibration screening.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the sleeve-type folding screening mechanism includes an outer compartment, a middle compartment, and an inner compartment that are sequentially nested from the outside to the inside. The outer peripheral side wall of the top of the inner compartment is provided with multiple first spring locks, and the inner peripheral side wall of the bottom of the middle compartment is provided with an annular first locking groove. Pulling the middle compartment upward causes the multiple first spring locks to be correspondingly engaged into the first locking groove to realize the unfolding and locking of the middle compartment and the inner compartment. Multiple second spring locks are provided on the outer peripheral side wall of the top of the middle cabin, and an annular second locking groove is provided on the inner peripheral side wall of the bottom of the outer cabin. Multiple second spring locks are arranged corresponding to the second locking groove. Pulling the outer cabin upward causes the multiple second spring locks to be engaged into the second locking groove to realize the deployment and locking of the outer cabin and the middle cabin.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: using the first spring locking device, the middle compartment and the inner compartment can be effectively locked; using the second spring locking device, the middle compartment and the outer compartment can be effectively locked.

[0013] Furthermore, a first screen is provided on the top of the middle compartment, a second screen is provided in the middle or top of the inner compartment, and a third screen is provided on the top of the discharge hopper. The aperture of the first screen is larger than that of the second screen, and the aperture of the second screen is larger than that of the third screen.

[0014] The beneficial effect of adopting the above-mentioned further scheme is that by setting the first screen, the second screen and the third screen with successively decreasing aperture, it is convenient to perform stratified screening of planetary soil particles.

[0015] Furthermore, the vibration mechanism includes a vibration motor, a support frame is provided at the bottom of the discharge hopper, the vibration motor is mounted on the support frame, an eccentric plate is provided on the output shaft of the vibration motor, and multiple vibration springs are spaced apart on the outer periphery of the support frame; The discharge hopper is also equipped with an auxiliary vibrating cylinder, which is fixed to the bottom wall of the discharge hopper. The auxiliary vibrating cylinder contains vibrating balls and has multiple discharge holes.

[0016] The beneficial effects of adopting the above-mentioned further solution are: by setting an eccentric plate, it is convenient to effectively vibrate the discharge hopper and the sleeve-type folding screening mechanism above the discharge hopper, and the vibration cylinder and the vibration ball inside it further enhance the vibration effect.

[0017] Furthermore, the anchoring mechanism includes an anchor rod, a spring, and a limiting block. The lower outer wall of the anchor rod is provided with an external thread, and the middle part of the anchor rod is provided with a limiting block. The anchor rod is arranged vertically and is movably connected to the outer periphery of the frame body. The spring is sleeved on the anchor rod and its upper end abuts against the frame body and its lower end abuts against the limiting block. Each set of limiting ear plates includes a first limiting ear plate and a second limiting ear plate arranged vertically. The first limiting ear plate is provided with a first limiting hole that runs vertically through the plate, and the second limiting ear plate is provided with a second limiting hole that runs vertically through the plate. The first limiting hole and the second limiting hole have the same shape and are arranged vertically and correspondingly. The shape of the limiting block is the same as the shape of the first limiting hole. In the initial state, the limiting block abuts against the first limiting ear plate, the lower end of the anchor rod passes through the second limiting hole, and the spring is in a compressed state; In the anchored state, rotating the anchor rod causes the limiting block to pass through the first limiting hole and the second limiting hole under the action of the spring, which in turn drives the lower end of the anchor rod to anchor downward.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the anchoring mechanism can ensure that the lunar soil storage, conveying and screening device is firmly fixed to the planetary ground when it is working, and the locking and unlocking can be achieved by rotating the ground anchor by setting the limiting ear plate and the limiting block.

[0019] Furthermore, it also includes a magnetic screening mechanism and a collection box, wherein the magnetic screening mechanism is located below the discharge port and the collection box is located below the magnetic screening mechanism; The magnetic screening mechanism includes a drive mechanism, a drum, and a sector-shaped magnetic system. The drum is arranged laterally. The drive mechanism is connected to the drum and drives the drum to rotate. The sector-shaped magnetic system is coaxially arranged inside the drum, and the connecting shaft of the sector-shaped magnetic system is fixed on the frame body. The circumferential surface of the sector-shaped magnetic system is adapted to the circumferential surface of the adjacent drum. The sector-shaped magnetic system is arranged correspondingly to the waste outlet and collection box on the side of the frame body away from the vibration mechanism.

[0020] The beneficial effect of adopting the above-mentioned further scheme is that by combining the roller and the fan-shaped magnetic system, the effective separation of magnetic soil particles and non-magnetic soil particles can be achieved.

[0021] Furthermore, the drive mechanism includes an external rotor motor, the outer rotor of which is connected to the drum, the inner stator of which is fixedly connected to the connecting shaft of the sector magnetic system, and the inner stator of which is fixed to the frame body.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the outer rotor of the outer rotor motor drives the drum, and the inner stator is connected to the sector magnetic system, which improves the positioning accuracy between the drum and the sector magnetic system.

[0023] Furthermore, the sector-shaped magnetic system is located below the side of the drum opposite to the vibration mechanism, and the area enclosed by the extended surfaces of the two rectangular surfaces of the sector-shaped magnetic system can cover the upper and lower ends of the waste outlet. The angle of the sector-shaped magnetic system is 100°~160°.

[0024] The beneficial effect of adopting the above-mentioned further scheme is that by setting the position and angle of the sector magnetic system, magnetic soil particles are prevented from being thrown out.

[0025] Furthermore, the frame body is provided with a brush, the tail of the brush is arranged close to the vibration mechanism, and the head of the brush extends upward at an angle and contacts the outer surface of the roller.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the brush can sweep off the magnetic soil particles that have not fallen off the surface of the roller.

[0027] Furthermore, the bottom of the collection box is provided with a guide rail, and the frame body is provided with a sliding groove, and the guide rail is slidably disposed in the sliding groove; the side of the collection box located inside the frame body is locked or unlocked to the frame body through a pop-out mechanism.

[0028] Furthermore, the extended discharge section has a funnel-shaped structure, the discharge port extends in a direction parallel to the axial direction of the drum, the length of the discharge port does not exceed the axial length of the fan-shaped magnetic system, and the length of the waste outlet is not less than the axial length of the drum. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the lunar soil storage, conveying, and screening device of the present invention; Figure 2 This is a schematic diagram of the internal main structure of the lunar soil storage, conveying and screening device of the present invention; Figure 3 This is a front view schematic diagram of the sleeve-type folding screening mechanism of the present invention in conjunction with the vibration mechanism and the anchoring mechanism. Figure 4 This is a schematic diagram of the internal structure of the sleeve-type folding screening mechanism of the present invention in conjunction with the vibration mechanism and the anchoring mechanism. Figure 5 This is a schematic diagram of the internal structure of the magnetic screening mechanism of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the internal structure of the magnetic screening mechanism of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the main structure of the sleeve-type folding screening mechanism of the present invention; Figure 8 This is a cross-sectional view of the sleeve-type folding screening mechanism of the present invention. Figure 9 This is a schematic diagram of the main structure of the anchoring mechanism of the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the main structure of the anchoring mechanism of the present invention. Figure 2 ; Figure 11 This is a bottom view of the collection box of the present invention. Figure 12 This is a top view of the collection box of the present invention. Figure 13 This is a side view of the collection box of the present invention. Figure 14 This is a cross-sectional view of the collection box of the present invention. Figure 1 ; Figure 15 This is a cross-sectional view of the collection box of the present invention. Figure 2 .

[0030] The attached diagram lists the components represented by each number as follows: 100. Frame body; 101. Waste outlet; 103. Skin; 104. First limiting ear plate; 105. Second limiting ear plate; 106. Support plate; 108. Operating handle; 109. Cover plate; 110. Circular bracket; 111. Public support platform; 200. Anchoring mechanism; 201. Anchor bolt; 202. Spring; 203. Limiting block; 204. Operating handle; 300. Sleeve-type folding screening mechanism; 301. Sealing sleeve; 302. Discharge bin; 303. Extended discharge section; 304. Discharge port; 305. Inner chamber; 306. Middle chamber; 307. Outer chamber; 308. First spring locker; 309. Second spring locker; 310. First screen; 311. Second screen; 312. Third screen; 313. Support frame; 314. Auxiliary vibrating cylinder; 400. Vibration mechanism; 401. Vibration motor; 402. Vibration spring; 403. Eccentric plate; 500. Magnetic screening mechanism; 501. External rotor motor; 502. Drum; 503. Sector-shaped support; 504. Soft magnetic yoke; 505. Magnet; 506. Separator; 507. Brush; 508. External rotor; 509. Inner stator; 510. Bearing; 511. Connecting shaft; 512. Adjusting shim; 513. Sector-shaped magnetic system; 600. Collection box; 601. Guide rail; 602. Pop-out mechanism; 603. Guide rail shaft; 604. Connecting rod; 605. Return spring; 606. Slider; 607. Support frame; 608. Pin; 609. Cam groove; 610. Bushing. Detailed Implementation

[0031] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0032] like Figures 1-15 As shown, a lunar soil storage, conveying and screening device of this embodiment includes a frame body 100 and a sleeve-type folding screening mechanism 300, a discharge bin and a vibration mechanism 400 disposed in the frame body 100. The outer periphery of the frame body 100 is provided with multiple sets of circumferentially spaced limiting ear plates, and each set of limiting ear plates is correspondingly installed with an anchoring mechanism 200. The lower end of the sleeve-type folding screening mechanism 300 is sealed to the upper end of the discharge bin 302 through a sealing sleeve 301. An extended discharge section 303 is provided on one side of the discharge bin 302, and a discharge port 304 is provided at the bottom of the extended discharge section 303. The vibration mechanism 400 is installed at the bottom of the discharge bin 302, and the bottom of the discharge bin 302 is elastically connected to the frame body 100 by a vibration spring 402.

[0033] In this embodiment, the sleeve-type folding screening mechanism 300 is not directly fixed to the frame body 100. When folded and stored, it can be attached to the feed inlet at the top of the frame body 100.

[0034] like Figure 7 and Figure 8As shown, in one specific embodiment, the sleeve-type folding screening mechanism 300 includes an outer compartment 307, a middle compartment 306, and an inner compartment 305 sequentially nested from the outside to the inside. The inner compartment 305 has multiple first spring locks 308 on its top outer peripheral sidewall, and the middle compartment 306 has an annular first locking groove on its bottom inner peripheral sidewall. Pulling the middle compartment 306 upwards causes the multiple first spring locks 308 to engage with the corresponding first locking grooves, thus unfolding and locking the middle compartment 306 and the inner compartment 305. The use of first spring locks effectively locks the middle compartment and the inner compartment.

[0035] like Figure 7 and Figure 8 As shown, in this embodiment, the outer periphery of the top of the middle compartment 306 is provided with a plurality of second spring locks 309, and the inner periphery of the bottom of the outer compartment 307 is provided with an annular second locking groove. The plurality of second spring locks 309 are arranged corresponding to the second locking groove. Pulling the outer compartment 307 upward causes the plurality of second spring locks 309 to engage with the corresponding second locking groove, thereby realizing the deployment and locking of the outer compartment 307 and the middle compartment 306. By using the second spring locks, the middle compartment and the outer compartment can be effectively locked.

[0036] like Figure 4 and Figure 8As shown, in this embodiment, the top of the middle compartment 306 is provided with a first screen 310, the middle or top of the inner compartment 305 is provided with a second screen 311, and the top of the discharge bin 302 is provided with a third screen 312. The aperture of the first screen 310 is larger than that of the second screen 311, and the aperture of the second screen 311 is larger than that of the third screen 312. By setting the first, second, and third screens with successively decreasing apertures, it is convenient to perform stratified screening of planetary soil particles. The sleeve-type folding screening mechanism 300 preferably consists of three compartments. The three compartments adopt a nested folding structure. When ascending, the three compartments are folded up. After reaching the planetary surface, the astronauts pull the three compartments apart. A screen is set in the middle compartment, the inner compartment, and the discharge bin to disperse the planetary soil particles and prevent the planetary soil particles from accumulating in the sleeve-type folding screening mechanism and causing congestion. The planetary soil particles should have appropriate movement on the screen surface. On the one hand, this keeps the soil layer on the screen surface loose, causing separation (stratification by particle size), with larger particles on top and smaller particles on the bottom, making it easier for them to reach the screen surface and pass through the screen openings. On the other hand, the movement of both the material and the screen promotes the removal of particles clogging the screen openings, facilitating the passage of planetary soil particles through the screen. Particles in the planetary soil that are much smaller than the screen opening size fall quickly into the undersize product after screening begins. The closer the particle size is to the screen opening size, the longer it takes for the particles to pass through the screen. Therefore, the speed at which planetary soil passes through the screen openings during screening depends on the ratio of particle diameter to screen opening size. Utilizing the vibration energy of the screen allows fine particles to pass through the screen quickly, increasing the frequency of particles with similar screen opening sizes being fed onto the screen surface, while simultaneously removing coarse particles clogging the screen openings, thus achieving rapid screening of planetary soil particles.

[0037] like Figure 7 and Figure 8 As shown, both the first spring locker 308 and the second spring locker 309 in this embodiment can adopt a structure in which a spring and a locking ball cooperate. That is, the locking ball can be connected to the corresponding position by the spring. When locking is required, the locking ball pops out under the action of the spring and locks into the corresponding locking groove.

[0038] like Figures 1-4 As shown, the frame body 100 of this embodiment is provided with a feed inlet, which can be arranged correspondingly to the upper opening of the inner compartment. Both the middle compartment 306 and the outer compartment 307 can be pulled out and folded back through the feed inlet. When the inner compartment 305, the middle compartment 306, and the outer compartment 307 are all folded back into the frame body 100, a cover plate 109 can be provided at the feed inlet to cover it. A skin 103 can be covered on the outside of the frame body 100 to cover the equipment inside the frame body 100.

[0039] like Figure 3 and Figure 4As shown, the vibration mechanism 400 in this embodiment includes a vibration motor 401. A support frame 313 is provided at the bottom of the discharge bin 302. The vibration motor 401 is mounted on the support frame 313. An eccentric plate 403 is provided on the output shaft of the vibration motor 401. The bottom of the discharge bin 302 is connected to the frame body 100 via multiple vibration springs 402, which are spaced apart on the outer periphery of the support frame 313. An auxiliary vibration cylinder 314 is also provided inside the discharge bin 302. The auxiliary vibration cylinder 314 is fixed to the bottom wall of the discharge bin 302 and contains vibrating balls. Multiple discharge holes are opened on the auxiliary vibration cylinder 314. By setting the eccentric plate and vibration springs, effective vibration of the discharge bin and the sleeve-type folding screening mechanism above the discharge bin is facilitated. The auxiliary vibration cylinder and the vibrating balls inside further enhance the vibration effect.

[0040] Eccentric plates can be installed on the output shafts at both the upper and lower ends of the vibratory motor. The vibratory motor drives the output shaft and the upper and lower eccentric blocks to rotate through a flexible coupling, causing the vibratory motor to vibrate. The vibratory motor is installed at the bottom of the discharge hopper and, together with the discharge hopper, is mounted on the annular bracket 110 inside the frame body 100 via vibration springs. The sleeve-type folding screening mechanism can be composed of multiple layers of chambers. Each layer of chamber and screen is vertically assembled and installed on the discharge hopper. After all components are fastened, they form a whole that participates in the vibration, which is supported by vibration springs on the frame body.

[0041] To enhance the bonding strength between the main frame and the planetary surface, such as Figures 1-4 , Figure 9 and Figure 10 As shown, the anchoring mechanism 200 includes an anchor rod 201, a spring 202, and a limiting block 203. The lower outer wall of the anchor rod 201 is provided with an external thread, and the middle part of the anchor rod 201 is provided with a limiting block 203. The anchor rod 201 is arranged vertically and is movably connected to the outer periphery of the frame body 100. The spring 202 is sleeved on the anchor rod 201, with its upper end abutting against the frame body 100 and its lower end abutting against the limiting block 203. Each set of limiting ear plates includes a first limiting ear plate 104 and a second limiting ear plate 105 arranged vertically. The first limiting ear plate 104 is provided with a first limiting hole that runs vertically through it, and the second limiting ear plate 105 is provided with a second limiting hole that runs vertically through it. The first limiting hole and the second limiting hole have the same shape and are arranged vertically and correspondingly. The shape of the limiting block 203 is the same as the shape of the first limiting hole. In the initial state, the limiting block 203 abuts against the first limiting ear plate 104, the lower end of the anchor rod 201 passes through the second limiting hole, and the spring 202 is in a compressed state. In the anchored state, rotating the anchor rod 201 causes the limiting block 203 to pass through the first limiting hole and the second limiting hole under the action of the spring 202, thereby driving the lower end of the anchor rod 201 to anchor downwards.

[0042] The anchoring mechanism 200 ensures that the lunar soil storage, conveying and screening device is firmly attached to the planetary ground during operation. By setting limit ear plates and limit blocks, the ground anchor can be rotated to unlock and lock.

[0043] In one specific embodiment, the first limiting hole includes a circular hole and two limiting side holes, with the two limiting side holes located around the circular hole and communicating with it. By providing the circular hole and the limiting side holes to cooperate, the limiting component can be easily rotated and abut against the lower surface of the limiting ear plate for limiting.

[0044] Preferably, the two limiting side holes are arranged symmetrically along the radial direction of the circular hole.

[0045] like Figures 1-4 , Figure 9 and Figure 10 As shown, in this embodiment, the outer periphery of the frame body 100 is provided with multiple support plates 106, which are arranged one-to-one above multiple sets of limiting ear plates. Each support plate 106 has a vertically penetrating sliding hole, through which the anchor rod 201 moves vertically. The upper end of the spring 202 abuts against the support plate 106. By providing support plates, the sliding fit between the anchor rod and the frame body is facilitated. like Figures 1-4 , Figure 9 and Figure 10 As shown, the frame body 100 of this embodiment has a cubic structure, and each of the four vertical sides of the cubic structure is provided with a set of limiting ear plates, with the second limiting ear plate 105 located at the lower end of its respective vertical side.

[0046] like Figures 1-4 , Figure 9 and Figure 10 As shown, the upper end of the anchor rod 201 in this embodiment is provided with an operating handle 204, and the outer surfaces of the opposite sides of the frame body 100 are provided with operating handles 108.

[0047] The planetary soil mineral screening and installation anchoring frame of this embodiment has good structural stability, which can ensure that the lunar soil storage, transportation and screening device is firmly fixed to the planetary ground when it is working. By setting limit ear plates and limit blocks, the ground anchor can be rotated to unlock and lock.

[0048] The lunar soil storage, conveying and screening device of this embodiment also includes a magnetic screening mechanism and a collection box. The magnetic screening mechanism 500 is located below the discharge port 304, and the collection box 600 is located below the magnetic screening mechanism 500. The magnetic screening mechanism 500 includes a drive mechanism, a drum 502, and a sector-shaped magnetic system 513. The drum 502 is arranged laterally. The drive mechanism is connected to the drum 502 and drives the drum 502 to rotate. The sector-shaped magnetic system 513 is coaxially arranged inside the drum 502, and the connecting shaft 511 of the sector-shaped magnetic system is fixed on the frame body 100. The circumferential surface of the sector-shaped magnetic system 513 is adapted to the circumferential surface of the adjacent drum 502. The sector-shaped magnetic system 513 is arranged correspondingly to the waste outlet 101 and the collection box 600 on the side of the frame body 100 away from the vibration mechanism.

[0049] like Figure 6 As shown, the driving mechanism in this embodiment includes an external rotor motor 501. The external rotor 508 of the external rotor motor 501 is connected to the roller 502. The inner stator 509 of the external rotor motor 501 is connected and fixed to the connecting shaft 511 of the sector magnetic system 513. The inner stator 509 of the external rotor motor 501 is fixed on the frame body 100. By having the external rotor of the external rotor motor drive the roller, and the inner stator is connected to the sector magnetic system, the positioning accuracy between the roller and the sector magnetic system is improved.

[0050] Specifically, the sector-shaped magnetic system 513 has connecting shafts 511 at both ends. The connecting shafts 511 are rotatably connected to the roller 502 via bearings 510. The inner ring of the bearing 510 is fixed to the connecting shaft 511, and the outer ring of the bearing 510 is fixedly connected to the roller 502. An adjusting shim 512 is provided between the inner stator 509 and the inner ring of the bearing 510.

[0051] like Figure 5 As shown, in a preferred embodiment, the fan-shaped magnetic system 513 is located below the side of the roller 502 opposite to the vibration mechanism 400. The area enclosed by the extended surfaces of the two rectangular faces of the fan-shaped magnetic system 513 can cover the upper and lower ends of the waste outlet 101. The angle of the fan-shaped magnetic system is 100°~160°. By setting the position and angle of the fan-shaped magnetic system, magnetic soil particles are prevented from being thrown out.

[0052] like Figure 5As shown, the sector-shaped magnetic system 513 of this embodiment includes a sector-shaped support 503, a soft magnetic yoke 504, a separator 506, and magnets 505. The sector-shaped support 503 has a connecting shaft 511, which extends from both ends of the roller 502 and is connected and fixed to the frame body 100. The inner stator 509 is also fixed on the connecting shaft 511. The soft magnetic yoke 504 is provided on the inner side of the sector-shaped support 503. The soft magnetic yoke 504 has an arc-shaped structure and its radius is smaller than the radius of the sector-shaped support 503. The outer surface of the soft magnetic yoke 504 is provided with multiple magnets 505 with an isosceles trapezoidal cross-section. The multiple magnets 505 are arranged sequentially at intervals, and the intervals are provided with separators 506, which are also isosceles trapezoidal structures. The long base of the magnets 505 is arranged close to the roller 502. In this way, the outer surfaces of the multiple magnets 505 and the multiple separators 506 form an arc-shaped structure that is adapted to the inner surface of the roller 502.

[0053] In this embodiment, the sector-shaped magnetic system 513 is made of neodymium iron boron and remains stationary. The drum rotates at a certain speed. The circumferential direction of the sector-shaped magnetic system is designed with a small pole pitch, multiple strong magnetic poles, and a large magnetic wrap angle to increase the number of magnetic agitations and improve the separation accuracy of fine-grained magnetic minerals. Magnetic minerals are separated from the drum by brushes and vibration and enter the collection box. Non-magnetic minerals are thrown to the waste outlet by centrifugal force and gravity and discharged outside the frame body. A monitoring device can also be set in the magnetic separation component to monitor the magnetic separation effect and optimize the mineral processing efficiency by adjusting the drum speed or the position of the sector-shaped magnetic system.

[0054] like Figure 5 As shown, specifically, the extended discharge section 303 has a funnel-shaped structure, the discharge port 304 extends in a direction parallel to the axial direction of the drum 502, the length of the discharge port 304 does not exceed the axial length of the fan-shaped magnetic system 513, and the length of the waste outlet 101 is not less than the axial length of the drum 502. This allows the discharge port to be tightly attached to the drum surface, preventing particles from bouncing.

[0055] like Figure 5 As shown, preferably, the frame body 100 is provided with a brush 507, the tail of the brush 507 is arranged close to the vibration mechanism 400, and the head of the brush 507 extends obliquely upward and contacts the outer surface of the roller 502. The brush can sweep off magnetic soil particles that have not fallen off the surface of the roller.

[0056] like Figure 6 , Figures 10-14As shown, the collection box 600 in this embodiment has a guide rail 601 at its bottom, and a sliding groove is provided inside the frame body 100. The guide rail 601 is slidably disposed in the sliding groove. The side of the collection box 600 located inside the frame body 100 is locked or unlocked to the frame body 100 through a pop-out mechanism 602. The collection box 600 is made of lightweight aluminum alloy and is enclosed on all sides and at the bottom. The guide rail 601 is installed at the bottom of the collection box, the pop-out mechanism 602 is installed at the rear to achieve quick locking and releasing, and a handle is installed at the front to achieve quick connection. A self-locking sorting collection unit is adopted, which can automatically pop out after being filled with planetary soil; multiple sorting collection units can also be set to collect planetary soil of different particle sizes and different magnetic properties.

[0057] Specifically, one end of the guide rail 601 extends to form a guide rail shaft 603. The ejection mechanism 602 includes a support frame 607, which is fixed inside the frame body 100. A bushing 610 and a slider 606 are fixed on the guide rail shaft 603. Both the bushing 610 and the slider 606 are slidably disposed within the support frame 607. The bushing 610 is arranged close to the collection box 600, and the slider 606 is arranged away from the collection box 600. Both the slider and the bushing can slide horizontally along the support frame 607. The slider 606 is provided with a cam groove 609. The upper surface of the support frame 607 is provided with an opening. The end of the slider 606 away from the bushing 610 abuts against the support frame 607 through a return spring 605. The end of the support frame 607 away from the collection box 600 is hinged to a connecting rod 604. The connecting rod 604 can rotate in the horizontal direction. The free end of the connecting rod 604 is provided with a pin 608, which is engaged in the cam groove 609. When the collection box 600 is pressed once, the pin 608 moves from the locked position to the unlocked position, causing the collection box 600 to pop out under the action of the return spring. When the collection box 600 is pressed again, the pin 608 moves from the unlocked position to the locked position, causing the collection box 600 to retract and lock within the frame body 100. The structure of this cam groove 609 is used in the prior art and will not be described in detail.

[0058] In the lunar soil storage, conveying, and screening device of this embodiment, a common support platform 111 can be provided on one side of the sleeve-type folding screening mechanism and above the magnetic screening mechanism for the control and support of various functional components. This embodiment aims to introduce the structure of the lunar soil storage, conveying, and screening device. The common support platform can be implemented using existing control mechanisms and will not be described in detail here.

[0059] The lunar soil storage, conveying, and screening device in this embodiment is used to store the original planetary soil particles added by astronauts in a single batch, and to convey the planetary soil particles to a magnetic screening mechanism using vibration and uniform feeding. The magnetic screening mechanism uses a magnetic field to change the trajectory of different magnetic mineral particles, sorting and enriching the magnetic planetary soil particles in the uniformly falling planetary soil, and separating them from non-magnetic planetary soil particles. A collection box collects the magnetic planetary soil sieved out by the magnetic screening mechanism, and through its structural design, allows astronauts to quickly remove it and place it into a sample packaging bag.

[0060] The lunar soil storage, conveying, and screening device in this embodiment uses a sleeve-type folding screening mechanism to store planetary soil. The planetary soil is layered and screened using a screen. Under the vibration of the vibration mechanism, the screened planetary soil particles are conveyed to a magnetic screening mechanism for magnetic separation. Ferromagnetic mineral particles such as ilmenite, iron meteorite fragments, and magnetite in the planetary soil particles are magnetized by the fan-shaped magnetic system in the magnetic screening mechanism and adsorbed onto the surface of the drum. As the drum rotates, they are scattered into the collection box. Non-ferromagnetic mineral particles in the planetary soil particles are not magnetized or adsorbed by the magnetic screening mechanism and are scattered to the outside of the entire device during the rotation of the drum.

[0061] The lunar soil storage, conveying, and screening device of this embodiment combines a sleeve-type folding screening mechanism with a vibration mechanism. Different particle sizes can be set in the sleeve-type folding screening mechanism and the discharge hopper to achieve stratified screening of planetary soil minerals, effectively simplifying the structure and reducing its size. Through the combination of a drum and a fan-shaped magnetic system, effective separation of magnetic and non-magnetic soil particles can be achieved. This lunar soil storage, conveying, and screening device of this embodiment solves the problems of current planetary soil screening devices, such as limited soil processing capacity, lack of magnetic separation capability, and incompatibility with planetary surface environments.

[0062] The screening method using the lunar soil storage, conveying, and screening device of this embodiment includes the following steps: Pull the sleeve-type folding screening mechanism 300 upwards to unfold it, open the vibration mechanism 400 and the magnetic screening mechanism 500, and put the planetary soil into the sleeve-type folding screening mechanism 300. After the initial screening by the sleeve-type folding screening mechanism 300, the planetary soil of different particle sizes is arranged in layers in the screens of the sleeve-type folding screening mechanism 300 and the discharge bin 302. The planetary soil entering the discharge bin 302 falls onto the drum 502 through the discharge port 304. The drum 502 rotates clockwise to perform magnetic separation on the planetary soil falling onto it. The magnetic minerals in the planetary soil are adsorbed on the surface of the drum 502 when the drum 502 passes through the fan-shaped magnetic system, and fall into the collection box 600 when it leaves the fan-shaped magnetic system. Other non-magnetic soil is thrown out from the waste outlet 101 during the clockwise rotation of the drum 502.

[0063] The planetary soil mineral screening method of this embodiment can achieve stratified screening of planetary soil, with high screening efficiency and high soil screening accuracy.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A lunar soil storage, conveying, and screening device, characterized in that, It includes a frame body and a sleeve-type folding screening mechanism, a discharge bin and a vibration mechanism set in the frame body. The outer periphery of the frame body is provided with multiple sets of circumferentially spaced limiting ear plates, and each set of limiting ear plates is equipped with an anchoring mechanism. The lower end of the sleeve-type folding screening mechanism is sealed to the upper end of the discharge bin through a sealing sleeve. An extended discharge section is provided on one side of the discharge bin, and a discharge port is provided at the bottom of the extended discharge section. The vibration mechanism is installed at the bottom of the discharge hopper, and the bottom of the discharge hopper is elastically connected to the frame body by a vibration spring.

2. The lunar soil storage, conveying, and screening device according to claim 1, characterized in that, The sleeve-type folding screening mechanism includes an outer compartment, a middle compartment, and an inner compartment that are sequentially nested from the outside to the inside. The outer peripheral wall of the top of the inner compartment is provided with multiple first spring locks, and the inner peripheral wall of the bottom of the middle compartment is provided with an annular first locking groove. Pulling the middle compartment upward causes the multiple first spring locks to be correspondingly engaged into the first locking groove to realize the unfolding and locking of the middle compartment and the inner compartment. Multiple second spring locks are provided on the outer peripheral side wall of the top of the middle cabin, and an annular second locking groove is provided on the inner peripheral side wall of the bottom of the outer cabin. Multiple second spring locks are arranged corresponding to the second locking groove. Pulling the outer cabin upward causes the multiple second spring locks to be engaged into the second locking groove to realize the deployment and locking of the outer cabin and the middle cabin.

3. The lunar soil storage, conveying, and screening device according to claim 2, characterized in that, The top of the middle compartment is provided with a first screen, the middle or top of the inner compartment is provided with a second screen, and the top of the discharge hopper is provided with a third screen. The aperture of the first screen is larger than that of the second screen, and the aperture of the second screen is larger than that of the third screen.

4. The lunar soil storage, conveying, and screening device according to claim 1, characterized in that, The vibration mechanism includes a vibration motor, a support frame is provided at the bottom of the discharge hopper, the vibration motor is mounted on the support frame, an eccentric plate is provided on the output shaft of the vibration motor, and multiple vibration springs are spaced apart on the outer periphery of the support frame. The discharge hopper is also equipped with an auxiliary vibrating cylinder, which is fixed to the bottom wall of the discharge hopper. The auxiliary vibrating cylinder contains vibrating balls and has multiple discharge holes.

5. The lunar soil storage, conveying, and screening device according to claim 1, characterized in that, The anchoring mechanism includes an anchor rod, a spring, and a limiting block. The lower end of the anchor rod has an external thread on its outer side wall, and the middle of the anchor rod has a limiting block. The anchor rod is arranged vertically and is movably connected to the outer periphery of the frame body. The spring is sleeved on the anchor rod and its upper end abuts against the frame body and its lower end abuts against the limiting block. Each set of limiting ear plates includes a first limiting ear plate and a second limiting ear plate arranged vertically. The first limiting ear plate is provided with a first limiting hole that runs vertically through the plate, and the second limiting ear plate is provided with a second limiting hole that runs vertically through the plate. The first limiting hole and the second limiting hole have the same shape and are arranged vertically and correspondingly. The shape of the limiting block is the same as the shape of the first limiting hole. In the initial state, the limiting block abuts against the first limiting ear plate, the lower end of the anchor rod passes through the second limiting hole, and the spring is in a compressed state; In the anchored state, rotating the anchor rod causes the limiting block to pass through the first limiting hole and the second limiting hole under the action of the spring, which in turn drives the lower end of the anchor rod to anchor downward.

6. A lunar soil storage, conveying, and screening device according to any one of claims 1 to 5, characterized in that, It also includes a magnetic screening mechanism and a collection box, wherein the magnetic screening mechanism is located below the discharge port and the collection box is located below the magnetic screening mechanism; The magnetic screening mechanism includes a drive mechanism, a drum, and a sector-shaped magnetic system. The drum is arranged laterally. The drive mechanism is connected to the drum and drives the drum to rotate. The sector-shaped magnetic system is coaxially arranged inside the drum, and the connecting shaft of the sector-shaped magnetic system is fixed on the frame body. The circumferential surface of the sector-shaped magnetic system is adapted to the circumferential surface of the adjacent drum. The sector-shaped magnetic system is arranged correspondingly to the waste outlet and collection box on the side of the frame body away from the vibration mechanism.

7. The lunar soil storage, conveying, and screening device according to claim 6, characterized in that, The drive mechanism includes an external rotor motor, the outer rotor of which is connected to a roller, the inner stator of which is fixedly connected to the connecting shaft of the sector magnetic system, and the inner stator of which is fixed to the frame body.

8. The lunar soil storage, conveying, and screening device according to claim 6, characterized in that, The sector-shaped magnetic system is located below the side of the drum opposite to the vibration mechanism. The area enclosed by the extended surfaces of the two rectangular surfaces of the sector-shaped magnetic system can cover the upper and lower ends of the waste outlet. The angle of the sector-shaped magnetic system is 100°~160°. The frame body is provided with a brush, the tail of the brush is arranged close to the vibration mechanism, and the head of the brush extends upward at an angle and contacts the outer surface of the roller.

9. The lunar soil storage, conveying, and screening device according to claim 6, characterized in that, The bottom of the collection box is provided with a guide rail, and the frame body is provided with a sliding groove. The guide rail is slidably disposed in the sliding groove. The collection box located on one side inside the frame body is locked or unlocked to the frame body through a pop-out mechanism.

10. The lunar soil storage, conveying, and screening device according to claim 6, characterized in that, The extended discharge section has a funnel-shaped structure, the discharge port extends in a direction parallel to the axial direction of the drum, the length of the discharge port does not exceed the axial length of the sector magnetic system, and the length of the waste outlet is not less than the axial length of the drum.

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