In-situ lunar soil sampling device

Abstract

The in-situ lunar soil sampling device comprises a sampling mechanism and a screening mechanism, the sampling mechanism is arranged on one side of the screening mechanism and is used for collecting and transferring lunar soil samples; the screening mechanism comprises a screening bin, a screening filter cartridge and a conveying rod, a feeding port is formed in the top of the screening bin, an inclined protection plate of a grating structure is arranged at the feeding port to intercept lunar soil particles with the particle size larger than a preset value in a lunar soil sample, the screening filter cartridge is arranged in the screening bin and communicated with the feeding port, and the conveying rod is rotationally arranged in the screening filter cartridge and is communicated with the feeding port. Continuous spiral blades are arranged on the peripheral surface of the conveying rod so as to push the lunar soil sample to axially move in the screening filter cartridge when the conveying rod rotates; the screening filter cartridge comprises a plurality of particle size grading units of which the sizes of screen holes are sequentially increased in the lunar soil sample conveying direction; a plurality of collecting hoppers in one-to-one correspondence with the particle size grading units are arranged at the bottom of the screening bin and are used for collecting screened lunar soil samples; flash ports are formed in the side walls of the collecting hoppers, and the heights of the flash ports are different from one another.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aerospace equipment, and particularly relates to an in-situ lunar soil sampling device. BACKGROUND

[0002] With the continuous deepening of human exploration of the universe, the moon, as the closest celestial body to the earth, has become an important target of scientific research. The lunar soil on the moon's surface contains rich scientific information, and the study of lunar soil helps us understand the formation, evolution history of the moon, and the material circulation and energy conversion process in the universe. In-situ lunar soil sampling is a key means to obtain original lunar soil samples on the moon's surface, and is of great significance to lunar scientific research.

[0003] Early lunar soil sampling techniques are relatively simple, mainly through direct excavation or grabbing to obtain lunar soil samples. However, these methods have many limitations. On the one hand, the directly obtained lunar soil samples are not subjected to screening treatment, and the samples contain particles of various particle sizes, which cannot meet the demand for targeted research on lunar soil of different particle sizes. Lunar soil particles of different particle sizes may have significant differences in physical properties, chemical composition, and formation mechanism, and the analysis of mixed samples cannot accurately reveal these characteristics. On the other hand, the traditional sampling device cannot adjust the proportion of lunar soil of different particle sizes in the sample according to the research needs after collecting the lunar soil sample, resulting in the need to spend a lot of time and effort on secondary processing and screening of the sample in subsequent research, increasing the research cost and complexity. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the application provides an in-situ lunar soil sampling device, which mainly aims to screen the lunar soil sample and adjust the proportion of lunar soil of different particle sizes in the sample.

[0005] To achieve the above purpose, the application mainly provides the following technical solutions:

[0006] The application provides an in-situ lunar soil sampling device, which comprises:

[0007] a sampling mechanism and a screening mechanism;

[0008] The sampling mechanism is arranged on one side of the screening mechanism, and the sampling mechanism is used to transfer the lunar soil sample to the screening mechanism;

[0009] The screening mechanism comprises a screening bin, a screening filter cylinder and a conveying rod. The top of the screening bin is provided with an inlet, which is an inclined surface. A protection plate in a grid structure is arranged at the inlet, and the protection plate is inclined. The protection plate is used to intercept lunar soil particles with a particle size greater than a preset value in the lunar soil sample. The screening filter cylinder is arranged in the screening bin and communicates with the inlet. The conveying rod is rotatably arranged in the screening filter cylinder. The outer peripheral surface of the conveying rod is provided with continuous spiral blades. The spiral blades are used to push the lunar soil sample to move axially in the screening filter cylinder when the conveying rod rotates. The screening filter cylinder comprises a plurality of particle size grading units. In the conveying direction of the lunar soil sample, the screen hole sizes of the plurality of particle size grading units gradually increase. The bottom of the screening bin is provided with a plurality of collecting hoppers. The plurality of collecting hoppers are arranged in one-to-one correspondence with the plurality of particle size grading units. The collecting hoppers are used to collect the lunar soil sample screened by the corresponding particle size grading units. Overflow ports are formed in the sidewalls of the plurality of collecting hoppers, and the heights of the overflow ports are different.

[0010] Optionally, the sampling mechanism comprises:

[0011] A sampling arm, the execution end of the sampling arm is provided with a sampling shovel, and the sampling arm has at least three degrees of freedom.

[0012] Optionally, a plurality of partitions are arranged between the inner wall of the screening bin and the outer wall of the screening filter cylinder. The plurality of partitions are distributed along the axial direction of the screening filter cylinder. The plurality of partitions are used to isolate the lunar soil samples screened by different particle size grading units.

[0013] Optionally, the in-situ lunar soil sampling device further comprises:

[0014] A dispensing mechanism, the dispensing mechanism is arranged below the screening mechanism. The dispensing mechanism is used to dispense the lunar soil samples of different particle sizes, which fall from the collecting hoppers and are screened, into different storage containers.

[0015] Optionally, the dispensing mechanism comprises:

[0016] A container rack and a turntable.

[0017] The container rack is rotatably arranged below the collecting hoppers. A plurality of storage containers are detachably and uniformly distributed in the circumferential direction of the container rack. When the container rack drives the storage containers to rotate, a part of the rotation path of the storage containers is arranged opposite to the collecting hoppers in the vertical direction.

[0018] The rotating disc is rotatably arranged between the collecting hopper and the container rack, and a first opening is formed in the rotating disc. When the rotating disc is rotated to a position where the first opening is arranged opposite to the collecting hopper in the vertical direction, the lunar soil sample in the collecting hopper can pass through the first opening and penetrate the rotating disc to fall into the corresponding storage container. When the rotating disc is rotated to a position where the first opening is arranged away from the collecting hopper in the vertical direction, the solid part of the rotating disc closes the discharge port of the collecting hopper.

[0019] Optionally, the sub-packaging mechanism further comprises:

[0020] a first driving assembly, a second driving assembly and a bearing seat;

[0021] The first driving assembly is connected with the container rack, and is used to drive the container rack to rotate. The second driving assembly is connected with the rotating disc, and is used to drive the rotating disc to rotate.

[0022] The bearing seat is arranged between the first driving assembly and the second driving assembly, one end of the bearing seat is rotatably connected with the output shaft of the first driving assembly, and the other end is rotatably connected with the output shaft of the second driving assembly.

[0023] Optionally, a plurality of second openings are formed in the rotating disc, and a container cover is detachably arranged in each of the second openings. When the rotating disc and the container rack are rotated to a position where the storage container and the second opening are arranged opposite to each other in the vertical direction, the container cover can be buckled onto the storage container under the action of the execution end of the sampling mechanism.

[0024] Optionally, when the rotating disc is rotated to a position where the first opening is arranged opposite to the collecting hopper in the vertical direction, any one of the plurality of second openings is arranged away from the collecting hopper in the vertical direction.

[0025] Optionally, an elastic member is arranged at the top opening of the storage container. When the container cover is buckled onto the storage container under the action of the execution end of the sampling mechanism, the execution end of the sampling mechanism deforms the elastic member through the container cover to accumulate elastic potential energy. When the container cover is buckled in place and stops the downward pressing action, the elastic member releases the elastic potential energy to limit the container cover in the vertical direction.

[0026] Optionally, the container rack comprises:

[0027] A plurality of movable clamping jaws are arranged one by one corresponding to the plurality of storage containers.

[0028] By means of the technical scheme, the application has at least the following beneficial effects:

[0029] The in-situ lunar soil sampling device provided in the embodiments of the application has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 1 is a structural schematic diagram of an in-situ lunar soil sampling device according to an optional embodiment of the application;

[0031] Figure 2 FIG. 2 is a structural schematic diagram of a sampling mechanism according to an optional embodiment of the application;

[0032] Figure 3 FIG. 3 is a structural schematic diagram of a screening mechanism according to an optional embodiment of the application;

[0033] Figure 4 FIG. 4 is a structural schematic diagram of a sub-packaging mechanism according to an optional embodiment of the application;

[0034] Figure 5 FIG. 5 is a structural schematic diagram of a rotating disc according to an optional embodiment of the application;

[0035] Figure 6 FIG. 6 is a sectional view of A-A in FIG. 5; Figure 5

[0036] Figure 7 FIG. 7 is a structural schematic diagram of a container rack according to an optional embodiment of the application;

[0037] ​Figure 8 a top view of a storage container of one alternative embodiment of the present application;

[0038] Figure 9 a sectional view of a storage container of one alternative embodiment of the present application.

[0039] Reference signs are indicated as follows:

[0040] 1, sampling mechanism; 11, sampling arm; 12, sampling shovel; 2, screening mechanism; 21, screening bin; 22, screening filter cartridge; 221, particle size grading unit; 23, conveying rod; 24, material collecting hopper; 241, overflow port; 3, sub-packaging mechanism; 31, container rack; 32, rotary disc; 321, first opening; 322, second opening; 33, storage container; 331, elastic member; 34, first driving assembly; 35, second driving assembly; 36, bearing seat; 37, container cover; 38, movable clamping jaw. DETAILED DESCRIPTION

[0041] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which it is understood that the preferred embodiments described below and illustrated in the drawings are merely intended to explain and illustrate the present application, and should not be taken in a limiting sense.

[0045] With reference to Figures 1 to 9 As shown in the drawings, according to the embodiments of the present application, an in-situ lunar soil sampling device is provided, comprising a sampling mechanism 1 and a screening mechanism 2; the sampling mechanism 1 is arranged on one side of the screening mechanism 2, and the sampling mechanism 1 is used to transfer the lunar soil sample to the screening mechanism 2; the screening mechanism 2 comprises a screening bin 21, a screening filter cylinder 22 and a conveying rod 23; the top of the screening bin 21 is provided with an inlet, the inlet is an inclined surface, and the inlet is provided with a protective plate in a grid structure, the protective plate is inclined, the protective plate is used to intercept the lunar soil particles with a particle size greater than a preset value in the lunar soil sample, the screening filter cylinder 22 is arranged in the screening bin 21 and communicates with the inlet, the conveying rod 23 is rotatably arranged in the screening filter cylinder 22, the outer peripheral surface of the conveying rod 23 is provided with a continuous spiral blade, the spiral blade is used to push the lunar soil sample to move axially in the screening filter cylinder 22 when the conveying rod 23 rotates; the screening filter cylinder 22 comprises a plurality of particle size grading units 221, and the mesh sizes of the plurality of particle size grading units 221 gradually increase in the conveying direction of the lunar soil sample; the bottom of the screening bin 21 is provided with a plurality of collecting hoppers 24, the plurality of collecting hoppers 24 are arranged one by one corresponding to the plurality of particle size grading units 221, and the collecting hopper 24 is used to collect the lunar soil sample screened by the corresponding particle size grading unit 221; the side wall of each collecting hopper 24 is provided with an overflow port 241, and the heights of the overflow ports 241 are different.

[0046] In this embodiment, the screening filter cylinder 22 comprises a plurality of particle size grading units 221, and the particle size grading units 221 are sequentially increased in size in the direction of the lunar soil sample conveying. Thus, when the conveying rod 23 rotates and the spiral blade pushes the lunar soil sample to move axially in the screening filter cylinder 22, the lunar soil particles of different particle sizes can be screened out according to their own sizes in the corresponding particle size grading units 221, so that the lunar soil sample can be accurately graded according to the particle size, providing a basis for subsequent research on lunar soil of different particle sizes. At the same time, the screening bin 21 is provided with a plurality of material collecting hoppers 24 corresponding to the particle size grading units 221 one by one, and each material collecting hopper 24 can accurately collect the lunar soil sample screened by the corresponding particle size grading unit 221. Thus, the lunar soil of different particle sizes can be stored separately, which is convenient for subsequent research and analysis. Further, the sidewalls of the plurality of material collecting hoppers 24 are each provided with a material overflow port 241, and the heights of the material overflow ports 241 are different. By setting the material overflow ports 241 of different heights, the proportion of lunar soil of different particle sizes can be adjusted according to the research needs. When the lunar soil of a certain particle size is collected to a certain amount and exceeds the height of the corresponding material overflow port 241, the excess lunar soil will overflow from the material overflow port 241, thereby controlling the proportion of the lunar soil of the particle size in the final sample. This solves the problem that the traditional sampling device cannot adjust the proportion of lunar soil of different particle sizes according to the research needs, reduces the time and effort of secondary processing and screening of the sample in subsequent research, and reduces the research cost and complexity.

[0047] The in-situ lunar soil sampling device further comprises a rack, and the sampling mechanism 1 and the screening mechanism 2 are both fixed on the rack. The rack provides a stable setting position for the sampling mechanism 1 and the screening mechanism 2, ensuring that the sampling and screening operations can be smoothly and accurately carried out.

[0048] Specifically, the sampling mechanism 1 can be a drilling sampling mechanism 1, a shovel sampling mechanism 1, a suction sampling mechanism 1 or a grabbing sampling mechanism 1, etc., which can collect lunar soil samples and transfer the lunar soil samples to the screening mechanism 2, and the present application does not limit this.

[0049] The screening mechanism 2 is located on one side of the sampling mechanism 1 and is used for screening and grading the lunar soil sample, and mainly comprises a screening bin 21, a screening filter cylinder 22 and a conveying rod 23.

[0050] Specifically, the screening bin 21 can be regarded as a container for accommodating the screening components, providing a relatively closed space for the entire screening process, effectively preventing the lunar soil from scattering during the screening process. The top of the screening bin 21 is provided with a feeding port, which serves as a passage for the lunar soil sample to enter the screening mechanism 2 and can be designed as an inclined surface. At the same time, a protective plate in a grid structure is provided at the feeding port, which is also inclined. Thus, when the lunar soil particles with a particle size greater than a predetermined value enter the feeding port along with the lunar soil sample, these large particles will be intercepted by the protective plate in a grid structure and inclined, and then slide down along the inclined feeding port, so as to be unable to enter the subsequent screening process, thereby avoiding the clogging of the screening mechanism due to the excessive particle size of the lunar soil sample. The screening filter cylinder 22 is arranged inside the screening bin 21 and is in communication with the feeding port at the top of the screening bin 21. The screening filter cylinder 22 is composed of a plurality of particle size grading units 221, and the screen hole sizes of these particle size grading units 221 gradually increase in the conveying direction of the lunar soil sample. For example, the screen hole size of the first particle size grading unit 221 is the smallest, and the screen hole size of the last particle size grading unit 221 is the largest. When the lunar soil sample entering from the feeding port passes through the screening filter cylinder 22, lunar soil particles of different particle sizes will be screened out in the corresponding particle size grading units 221 according to their own size. The lunar soil particles with smaller particle sizes will first pass through the particle size grading units 221 with smaller screen hole sizes, while the lunar soil particles with larger particle sizes will continue to move in the screening filter cylinder 22 until they encounter a screen hole that can pass through. The conveying rod 23 is rotatably installed inside the screening filter cylinder 22, and the outer peripheral surface thereof is provided with continuous spiral blades. When the conveying rod 23 rotates, the spiral blades will push the lunar soil sample to move axially in the screening filter cylinder 22 like a conveyor belt, ensuring that the lunar soil sample can continuously and stably pass through each particle size grading unit 221, realizing an efficient screening process. It should be noted that the conveying rod 23 can be driven to rotate by a conveying motor, which is located on the axial side of the screening filter cylinder 22, and the driving end of the conveying motor is connected with the conveying rod 23.

[0051] The screening mechanism 2 further comprises a plurality of collecting hoppers 24, which are arranged at the bottom of the screening bin 21 and correspond to the particle size grading units 221 in number. Each collecting hopper 24 is provided with an overflow port 241 on the side wall, and the heights of the overflow ports 241 are different from each other. Each collecting hopper 24 is used to collect the lunar soil sample screened by the corresponding particle size grading unit 221. After the lunar soil particles of different particle sizes pass through the screen holes of the screening filter cylinder 22, they will fall into the corresponding collecting hopper 24. The overflow port 241 can be used to adjust the proportion of lunar soil of different particle sizes according to the research needs. When the lunar soil of a certain particle size is collected to a certain amount in the collecting hopper 24, which exceeds the height of the corresponding overflow port 241, the excess lunar soil will overflow from the overflow port 241, thereby controlling the proportion of the lunar soil of the particle size in the final sample.

[0052] Specifically, in actual application scenarios, first, the sampling mechanism 1 collects lunar soil samples from the lunar surface and transfers them to the top of the screening bin 21 of the screening mechanism 2; then, the lunar soil samples enter the screening filter cartridge 22 through the feed inlet; next, the conveying rod 23 rotates, and the helical blades push the lunar soil samples to move axially in the screening filter cartridge 22. During the movement, lunar soil particles of different particle sizes are screened out in the corresponding particle size classification units 221 according to the size of the screen holes; then, the screened lunar soil particles fall into the corresponding material hoppers 24, respectively; finally, when the lunar soil in the material hopper 24 reaches the height of the overflow port 241, the excess lunar soil will overflow from the overflow port 241, thereby achieving adjustment of the proportion of lunar soil of different particle sizes.

[0053] It should be noted that, in the low-gravity environment on the lunar surface, when the conveying rod 23 rotates and pushes the screened lunar soil particles to move axially in the screening filter cartridge 22 by means of the helical blades on the outer periphery of the conveying rod 23, the high-speed rotation of the conveying rod 23 and the helical blades generates centrifugal force, which promotes the movement of the lunar soil particles to the wall of the screening filter cartridge 22, so that the lunar soil particles fall into the corresponding material hoppers 24 at the bottom of the screening bin 21.

[0054] In some possible implemented embodiments of the present disclosure, referring to Figure 2 As shown in the figure, the sampling mechanism 1 includes a sampling arm 11, and the execution end of the sampling arm 11 is provided with a sampling shovel 12. The sampling arm 11 has at least three degrees of freedom.

[0055] In this embodiment, the multiple degrees of freedom can realize more accurate motion control, so that the sampling shovel 12 can be accurately inserted into the lunar soil to accurately collect lunar soil samples of a target depth and quantity, thereby ensuring the accuracy and representativeness of sampling and helping to improve the reliability of subsequent scientific research.

[0056] The sampling arm 11 is a component responsible for performing sampling actions in the entire sampling mechanism 1, which is similar to a human arm and plays a role in supporting, stretching and operating the sampling shovel 12.

[0057] The sampling arm 11 has at least three degrees of freedom, so that the sampling arm 11 can move in three or more independent directions. For example, the sampling arm 11 can move in the horizontal direction (x-axis and y-axis directions) to adjust the sampling position; stretch in the vertical direction (z-axis direction) to control the sampling depth; and rotate around its own axis and other coordinate axes to adjust the angle and direction of the sampling shovel 12, so as to be able to flexibly reach different positions and postures in three-dimensional space and complete complex sampling tasks.

[0058] Specifically, the sampling arm 11 can be composed of mechanical structures, driving devices, transmission components, control systems, etc., and can realize various actions and movements to complete the sampling task. For example, the sampling arm 11 can be a mechanical linkage type sampling arm 11, a hydraulic driving type sampling arm 11, or a hybrid sampling arm 11, etc. In the present embodiment, the sampling arm 11 is a hybrid sampling arm 11, which realizes flexible operation in three-dimensional space through the coordinated movement of multiple joints such as shoulder joints, elbow joints, and wrist joints, and simultaneously uses a hydraulic cylinder as a power source to drive the movement of the piston through the pressure of hydraulic oil, and then drive the movement of each joint or rod of the sampling arm 11.

[0059] The end of the sampling arm 11, i.e., the end that performs specific operations, is provided with a sampling shovel 12. The sampling shovel 12 is a tool that directly contacts and samples the lunar soil, and its shape, size, material, etc. can be determined according to the sampling requirements and environment. For example, in order to effectively excavate and collect lunar soil, the sampling shovel 12 can have a sharp edge to insert into the lunar soil, while having a certain capacity and shape to accommodate and preserve the collected lunar soil samples, and can also have some special structures, such as a baffle to prevent lunar soil from spilling, etc.

[0060] Specifically, when the sampling task is started, the control system first receives instructions from the operator or the preset program, which clearly indicate the sampling position, depth, and sample quantity, etc. These instructions are converted into specific control signals and transmitted to each component of the sampling arm 11. For the hybrid sampling arm 11, the control system first drives the mechanical linkage structure through the motor to make the sampling arm 11 preliminarily adjust the position in the horizontal direction (x-axis and y-axis). The motor rotates accurately according to the control signal, driving the mechanical linkage connected thereto to realize the movement of the sampling arm 11 on the horizontal plane of the lunar surface and accurately position the target sampling area. After reaching above the target area, the sampling depth needs to be controlled. At this time, the hydraulic cylinder starts to play a role. The control system adjusts the hydraulic pump station to make the hydraulic oil enter the hydraulic cylinder at a specific pressure to drive the piston to move. The movement of the piston is transmitted to the rod of the sampling arm 11 through the transmission component, so that the sampling arm 11 is retracted in the vertical direction (z-axis), thereby accurately inserting the sampling shovel 12 into the lunar soil at the target depth. During the insertion of the sampling shovel 12 into the lunar soil, in order to ensure the accuracy and efficiency of the sampling, the sampling arm 11 also needs to be adjusted in angle and direction. The control system cooperates the motor and the hydraulic system to make multiple joints such as shoulder joint, elbow joint and wrist joint move in coordination. For example, the motor drives a specific linkage to change the angle of the shoulder joint, thereby realizing the overall swing of the sampling arm 11; the hydraulic elbow joint is used to accurately adjust the inclination angle of the sampling shovel 12; and the motor controls the rotation of the wrist joint to make the opening direction of the sampling shovel 12 consistent with the sampling demand. When the sampling shovel 12 reaches the target depth and the angle is adjusted, it cuts into the lunar soil with its sharp edge to excavate the lunar soil sample. The special structure of the sampling shovel 12, such as the baffle, can effectively prevent the lunar soil from spilling during excavation. As the excavation proceeds, the lunar soil sample gradually enters the sampling shovel 12, and when the preset sample quantity is reached, the control system issues an instruction to operate the motor and the hydraulic system in reverse to make the sampling arm 11 retract the sampling shovel 12 from the lunar soil, thereby completing a sampling task. Subsequently, the sampling mechanism 1 can continue to perform the next sampling according to the instruction, or transfer the collected lunar soil sample to the subsequent screening or storage device.

[0061] In some possible implementation embodiments disclosed in the present application, a plurality of partitions are arranged between the inner wall of the screening bin 21 and the outer wall of the screening filter cylinder 22, and the plurality of partitions are distributed along the axial direction of the screening filter cylinder 22. The plurality of partitions are used to isolate the lunar soil samples screened by different particle size classification units 221.

[0062] In this embodiment, the lunar soil samples screened by different particle size classification units 221 in the screening filter cylinder 22 can be effectively isolated by arranging the partitions, so that the lunar soil samples of different particle size ranges cannot be mixed, the accuracy and independence of the screening results of each particle size classification unit 221 are ensured, and the subsequent research, analysis or processing of the lunar soil samples of different particle sizes is facilitated.

[0063] The screening bin 21 is a housing part of the entire screening mechanism 2, which serves to accommodate and protect the internal screening structure, provides a relatively closed space for the screening process of the lunar soil sample, prevents the lunar soil from scattering out during the screening process, and also provides a mounting and supporting base for other components such as the partition plate and the like.

[0064] The screening filter cylinder 22 is one of the core components of the screening mechanism 2, which is internally provided with particle size grading units 221 of different screen hole diameters for particle size grading of the lunar soil sample. The lunar soil sample is vibrated or rotated in the screening filter cylinder 22, and particles of different sizes are separated according to the filter screen structure of different screen hole diameters on the particle size grading units 221, and enter the space between the screening filter cylinder 22 and the screening bin 21 from the corresponding position.

[0065] Specifically, the space between the screening filter cylinder 22 and the screening bin 21 is provided with a plurality of partition plates, which are distributed along the axial direction of the screening filter cylinder 22, i.e., arranged in sequence along the length direction of the screening filter cylinder 22. This distribution mode is adapted to the flow direction of the lunar soil sample during the screening process, because the lunar soil sample is usually screened and moved along the axial direction in the screening filter cylinder 22, and the partition plates distributed along the axial direction can timely isolate the samples screened by the particle size grading units 221 during the flow of the lunar soil sample.

[0066] In some possible implementation embodiments of the present disclosure, referring to Figure 1 The in-situ lunar soil sampling device further comprises a sub-packaging mechanism 3, which is arranged below the screening mechanism 2 and is used to sub-package the lunar soil samples of different particle sizes falling from the collecting hopper 24 and screened by the screening mechanism 2 into different storage containers 33.

[0067] In this embodiment, the sub-packaging mechanism 3 can accurately sub-package the lunar soil samples of different particle sizes processed by the screening mechanism 2 into different storage containers 33 according to preset requirements, which can prevent the lunar soil samples of different particle sizes from being mixed during the sub-packaging process, ensure the purity and singularity of the samples in each storage container 33, and thus meet the requirements of subsequent research and experiments on the lunar soil samples of different particle sizes, improving the accuracy and scientificity of the lunar soil sample processing.

[0068] When the in-situ lunar soil sampling device comprises a rack, the sub-packaging mechanism 3 is also fixedly arranged on the rack, which realizes the integrated design of the in-situ lunar soil sampling device and reduces the floor area of the in-situ lunar soil sampling device.

[0069] Specifically, the dispensing mechanism 3 can be a rotary disc 32 type dispensing mechanism 3 or a pneumatic valve type dispensing mechanism 3. It is installed below the collecting hopper 24, and its main function is to load different sizes of lunar soil samples into corresponding storage containers 33. The storage containers 33 are used to store the lunar soil samples after dispensing. Different sizes of lunar soil samples correspond to different storage containers 33. In actual application scenarios, the lunar soil samples fall from the collecting hopper 24, and the collecting hopper 24 plays a role in temporarily storing and guiding the lunar soil samples. In some specific examples, an adjustable valve or baffle is provided at the discharge port of the collecting hopper 24, and by adjusting the state of the valve or baffle, the opening and closing of the discharge port are controlled; in other specific examples, the dispensing mechanism 3 includes a solid part that closes the discharge port of the collecting hopper 24 and a yielding part that opens the discharge port of the collecting hopper 24, and by adjusting the working state of the dispensing mechanism 3, the opening and closing of the discharge port are controlled.

[0070] In some possible implementation embodiments disclosed in the present application, referring to Figure 4 As shown in the figure, the dispensing mechanism 3 includes a container rack 31 and a rotary disc 32. The container rack 31 is rotatably arranged below the collecting hopper 24, and a plurality of storage containers 33 are detachably and uniformly distributed in the circumferential direction of the container rack 31. When the container rack 31 drives the storage containers 33 to rotate, a part of the rotation path of the storage containers 33 is arranged opposite to the collecting hopper 24 in the vertical direction. The rotary disc 32 is rotatably arranged between the collecting hopper 24 and the container rack 31. The rotary disc 32 is provided with a first opening 321. When the rotary disc 32 is rotated to the position where the first opening 321 is arranged opposite to the collecting hopper 24 in the vertical direction, the lunar soil samples in the collecting hopper 24 can pass through the first opening 321 and penetrate the rotary disc 32 to fall into the corresponding storage containers 33. When the rotary disc 32 is rotated to the position where the first opening 321 is arranged opposite to the collecting hopper 24 in the vertical direction, the solid part of the rotary disc 32 closes the discharge port of the collecting hopper 24.

[0071] In this embodiment, the container rack 31 is rotatable and uniformly distributes a plurality of detachable storage containers 33 in the circumferential direction thereof, and the rotating disc 32 is rotatable and is provided with a first opening 321. Thus, when the container rack 31 drives the storage containers 33 to rotate, the rotating disc 32 also rotates correspondingly, so that the lunar soil samples of different particle sizes in the collection hopper 24 after screening can be accurately packed into the corresponding storage containers 33. Specifically, when the first opening 321 of the rotating disc 32 is oppositely arranged with the collection hopper 24 in the vertical direction, the lunar soil samples can fall into the storage containers 33 through the first opening 321, ensuring that each storage container 33 can accurately receive the lunar soil samples of the corresponding particle size, preventing the mixing of lunar soil samples of different particle sizes during the packing process, and ensuring the purity and singularity of the samples in each storage container 33. When the rotating disc 32 is rotated to be oppositely arranged with the collection hopper 24 in the vertical direction, the solid part of the rotating disc 32 closes the discharge port of the collection hopper 24, so that the discharge process of the lunar soil samples can be flexibly controlled. The discharge port can be opened or closed at the appropriate time according to the actual needs, avoiding unnecessary spilling or incorrect packing of the lunar soil samples, and improving the accuracy and controllability of the packing.

[0072] The container rack 31 is rotatably installed below the collection hopper 24, so that the position of the storage containers 33 can be changed. It should be noted that when the container rack 31 drives the storage containers 33 to rotate, a part of the rotating path of the storage containers 33 will be oppositely arranged with the collection hopper 24 in the vertical direction. This is an important condition for accurately packing lunar soil samples, because only when the storage containers 33 are rotated to the position opposite to the collection hopper 24 in the vertical direction, the lunar soil samples falling from the collection hopper 24 can accurately fall into the storage containers 33.

[0073] Specifically, in the circumferential direction of the container rack 31 (i.e. the circumferential direction around the container rack 31), a plurality of storage containers 33 are uniformly distributed, and these storage containers 33 are detachable, so that after the storage containers 33 are filled with lunar soil samples, they can be conveniently removed for subsequent processing, such as replacing new storage containers 33 for further packing.

[0074] The rotating disc 32 is also rotatable, which is arranged between the collection hopper 24 and the container rack 31, for controlling the discharge and temporary storage of the lunar soil samples in the collection hopper 24.

[0075] Specifically, the rotating disc 32 is provided with a first opening 321, which is a passage for the lunar soil sample to fall into the storage container 33 from the hopper 24. When the rotating disc 32 rotates, the position of the first opening 321 changes. It should be noted that when the rotating disc 32 rotates to a position where the first opening 321 is vertically opposite to the hopper 24, the lunar soil sample in the hopper 24 can pass through the rotating disc 32 through the first opening 321 and fall into the corresponding storage container 33, thus completing a dispensing process. When the rotating disc 32 rotates to a position where the first opening 321 is vertically offset from the hopper 24, the solid part of the rotating disc 32 blocks the discharge port of the hopper 24, so that the lunar soil sample cannot fall, thus closing the discharge port and stopping the dispensing of the lunar soil sample into the current storage container 33. Thus, the dispensing time of the lunar soil sample is flexibly controlled, and the lunar soil sample of different particle sizes can be accurately dispensed into different storage containers 33 as needed, avoiding confusion and waste of the sample.

[0076] In the above embodiment, the rotating disc 32 is provided with a first opening 321, and the container rack 31 is provided with a plurality of storage containers 33. In the process of rotating the rotating disc 32 and the container rack 31, the first opening 321 on the rotating disc 32 can be sequentially vertically opposite to each hopper 24, and the storage containers 33 on the container rack 31 can also be sequentially aligned with different hoppers 24. Thus, the lunar soil sample in different hoppers 24 can be accurately dispensed into the corresponding storage containers 33 through the first opening 321, thus achieving accurate dispensing of lunar soil samples of different particle sizes.

[0077] Specifically, assuming that four storage containers 33 are evenly distributed in the circumferential direction of the container rack 31 and correspond to the collection of lunar soil samples of different particle sizes. When the container rack 31 rotates to a position where one of the storage containers 33 is vertically opposite to one of the hoppers 24, the operator rotates the rotating disc 32 so that the first opening 321 of the rotating disc 32 is opposite to the hopper 24. At this time, the lunar soil sample of the corresponding particle size in the hopper 24 will fall into the storage container 33 through the first opening 321. When the storage container 33 is full, the rotating disc 32 is rotated again so that the first opening 321 is offset from the hopper 24, thus closing the discharge port. Then, the container rack 31 is rotated to align the next storage container 33 with the next hopper 24, and the above process is repeated to achieve accurate dispensing of lunar soil samples of different particle sizes.

[0078] In some possible implementation embodiments of the present disclosure, referring to Figure 4As shown, the dispensing mechanism 3 further comprises a first driving assembly 34, a second driving assembly 35, and a bearing seat 36. The first driving assembly 34 is connected with the container rack 31 and is used to drive the container rack 31 to rotate. The second driving assembly 35 is connected with the rotating disc 32 and is used to drive the rotating disc 32 to rotate. The bearing seat 36 is arranged between the first driving assembly 34 and the second driving assembly 35, one end of the bearing seat 36 is rotatably connected with the output shaft of the first driving assembly 34, and the other end is rotatably connected with the output shaft of the second driving assembly 35.

[0079] In this embodiment, the first driving assembly 34 is connected with the container rack 31 and is used to drive the container rack 31 to rotate. The second driving assembly 35 is connected with the rotating disc 32 and is used to drive the rotating disc 32 to rotate. Since the two driving assemblies provide power sources for the container rack 31 and the rotating disc 32 respectively, the container rack 31 and the rotating disc 32 can independently rotate according to actual needs, thereby realizing the function of accurately dispensing the lunar soil samples of different particle sizes in the collecting hopper 24 into the corresponding storage containers 33. For example, in the dispensing process, the first driving assembly 34 drives the container rack 31 to rotate to switch different storage containers 33 to align different collecting hoppers 24, and the second driving assembly 35 drives the rotating disc 32 to rotate to control the opening and closing of the discharge port of the collecting hopper 24, thereby ensuring the smooth progress of the dispensing process.

[0080] The first driving assembly 34 is a power component in the dispensing mechanism 3, and its main function is to provide power for the rotation of the container rack 31. The first driving assembly 34 is connected with the container rack 31, so that the first driving assembly 34 can transmit the power generated by itself to the container rack 31, thereby driving the container rack 31 to rotate as required.

[0081] Specifically, the first driving assembly 34 is located below the container rack 31, and the first driving assembly 34 comprises a first driving motor and a first transmission shaft. The driving end of the first driving motor is connected with the first transmission shaft, and the first transmission shaft is relatively fixed with the container rack 31. After the first driving motor is started, the electrical energy is converted into mechanical energy, and the driving end of the first driving motor outputs high-speed rotating power. The power is transmitted to the first transmission shaft connected therewith, and the first transmission shaft can drive the container rack 31 to rotate synchronously due to the relative fixation with the container rack 31.

[0082] The second driving assembly 35 is also a power component in the dispensing mechanism 3, and its main function is to provide power for the rotation of the rotating disc 32. The second driving assembly 35 is connected with the rotating disc 32, so that the second driving assembly 35 can transmit the power generated by itself to the rotating disc 32, thereby driving the rotating disc 32 to rotate as required.

[0083] Specifically, the second driving assembly 35 is located above the rotating disc 32, and the second driving assembly 35 comprises a second driving motor and a second transmission shaft, the driving end of the second driving motor is connected with the second transmission shaft, and the second transmission shaft is relatively fixed with the rotating disc 32. After the second driving motor is started, electric energy is converted into mechanical energy, and the driving end of the second driving motor outputs high-speed rotating power, which is transmitted to the second transmission shaft connected therewith. Since the second transmission shaft is relatively fixed with the rotating disc 32, the rotating disc 32 can be driven to rotate synchronously.

[0084] The axis of the container rack 31, the rotating disc 32, the first transmission shaft and the second transmission shaft are coincident. When the container rack 31 is driven to rotate by the first transmission shaft, the storage container 33 on the container rack 31 can accurately follow the preset track and be aligned with the collecting hopper 24 under the cooperation of the rotating disc 32, because the axis of the container rack 31 is coincident with the rotating disc 32. The first opening 321 on the rotating disc 32 can also be relatively arranged or staggered with the collecting hopper 24 in the vertical direction under the driving of the second transmission shaft. This not only avoids the problems such as sample spilling or mispackaging caused by the misalignment between components, but also greatly improves the packaging efficiency.

[0085] Specifically, a bearing seat 36 is arranged between the first transmission shaft and the second transmission shaft, one end of the bearing seat 36 is rotatably connected with the output shaft of the first driving assembly 34, and the other end is rotatably connected with the output shaft of the second driving assembly 35, so as to ensure that the output shafts of the first driving assembly 34 and the second driving assembly 35 can maintain a stable positional relationship when relatively rotating, reduce the axial and radial displacement deviation, and ensure the operation accuracy of the whole packaging mechanism 3.

[0086] In the above embodiment, referring to FIGS. 1 to 3, Figure 5 and Figure 6 It is shown that a plurality of second openings 322 are formed in the rotating disc 32, and a container cover 37 is detachably arranged in each of the second openings 322. When the rotating disc 32 and the container rack 31 are rotated to a position where the storage container 33 and the second opening 322 are arranged in the vertical direction, the container cover 37 can be buckled to the storage container 33 under the action of the execution end of the sampling mechanism 1.

[0087] In this embodiment, a plurality of second openings 322 for installing the container cover 37 are arranged on the rotating disc 32, and when the rotating disc 32 and the container rack 31 are rotated to a specific position, i.e., the second opening 322 and the storage container 33 are arranged in the vertical direction, the container cover 37 can be buckled to the storage container 33 under the action of the execution end of the sampling mechanism 1. This process does not require manual operation, realizes the automatic buckling of the container cover 37 and the storage container 33, improves the automation degree of the packaging process, reduces the labor input, and reduces the labor intensity of manual operation.

[0088] The turntable 32 has multiple second openings 322 for placing container lids 37. The number and distribution of the second openings 322 can be determined according to actual needs, as long as they correspond to the storage container 33 below.

[0089] The container lid 37 is a component that matches the storage container 33 and is used to seal the storage container 33. In practical applications, the container lid 37 is detachably disposed within the second opening 322 so that the container lid 37 can be inserted into the second opening 322.

[0090] Specifically, a continuous or segmented elastic tab can be provided around the inner edge of the second opening 322. The elastic tab is used to cooperate with the container lid 37. When the container lid 37 is inserted into the second opening 322, the elastic tab will deform under the pressure of the outer edge of the container lid 37. The elastic force generated by the elastic tab will make the container lid 37 fit tightly inside the second opening 322, thus achieving fixation. Due to the elastic force of the elastic tab, the container lid 37 will not easily fall off during normal use. However, when it is necessary to disassemble, a certain external force can be applied to overcome the elastic force of the elastic tab and push the container lid 37 out of the second opening 322.

[0091] It should be noted that in actual application scenarios, when the storage container 33 and the second opening 322 are set opposite each other in the vertical direction, the sampling mechanism 1, i.e., the sampling shovel 12, can apply pressure to the container cover 37 in the second opening 322 in the downward direction to press the container cover 37 down to the storage container 33 below, thus completing the automatic capping operation of the storage container 33.

[0092] In the above embodiment, when the turntable 32 rotates to the point where the first opening 321 and the collecting hopper 24 are arranged opposite each other in the vertical direction, any one of the plurality of second openings 322 is staggered from the collecting hopper 24 in the vertical direction.

[0093] In this embodiment, when the turntable 32 rotates to the feeding position, only one collecting hopper 24 is vertically aligned with the first opening 321, while all other collecting hoppers 24 are vertically offset from multiple second openings 322. This reduces the risk of lunar soil samples from other collecting hoppers 24 accidentally falling through the second opening 322 due to the absence of a container cover 37, effectively ensuring the orderliness and accuracy of lunar soil sample collection and processing, minimizing the occurrence of spillage or loss of lunar soil samples, and providing a stable and reliable prerequisite for subsequent scientific research on lunar soil samples.

[0094] It should be noted that, in order to ensure that when the turntable 32 rotates to the point where the first opening 321 is perpendicular to the hopper 24, all the second openings 322 will not be perpendicular to the hopper 24, the central angle corresponding to the arc length between the first opening 321 and each of the second openings 322 on the circumferential path of the turntable 32 should be greater than the central angle corresponding to the maximum arc length between two adjacent hoppers 24 when multiple hoppers 24 are circumferentially distributed.

[0095] In the above embodiments, see Figure 8 and Figure 9 As shown, an elastic element 331 is provided at the top open portion of the storage container 33. When the container lid 37 is fastened onto the storage container 33 by the action of the sampling mechanism 1, the action of the sampling mechanism 1 causes the elastic element 331 to deform through the container lid 37 to accumulate elastic potential energy. When the container lid 37 is fastened in place and the pressing action stops, the elastic element 331 releases the elastic potential energy to limit the container lid 37 in the vertical upward direction.

[0096] In this embodiment, the elastic element 331 releases elastic potential energy to limit the container lid 37 vertically upward. No additional mechanical structure or manual operation is required for the limiting, thus achieving automatic limiting. This allows the container lid 37 to automatically remain in the correct position after being fastened, improving the automation level and reliability of the entire device and simplifying the operation process.

[0097] Among them, the elastic element 331 is a component that can deform when subjected to force and return to its original shape after the external force is removed, such as an elastic sheet or elastic rubber.

[0098] Specifically, during the closing process of the container lid 37, the actuating end of the sampling mechanism 1, namely the sampling shovel 12, applies force. This force is transmitted through the container lid 37 to the elastic element 331 at the open top of the storage container 33. Because the elastic element 331 has deformable properties, it will be compressed and deformed after being subjected to force, making room for the closing of the container lid 37, allowing the container lid 37 to smoothly enter the storage container 33 and thus seal the storage container 33. When the container lid 37 is fully closed, the sampling shovel 12 stops applying downward pressure, and the elastic element 331, which had previously stored elastic potential energy due to deformation, begins to return to its initial state. The elastic element 331, which has returned to its initial state, is located above the container lid 37, which can restrict the position of the container lid 37 and effectively prevent the container lid 37 from coming out of the storage container 33 during subsequent use. Furthermore, in some specific examples, the elastic element 331 is a ring structure, and the elastic element 331 surrounds the top opening of the storage container 33; in other specific embodiments, the elastic element 331 is a segmented structure disposed on the inner edge of the opening of the storage container 33, with each segment distributed on the inner edge to jointly play an elastic role.

[0099] In order to quickly obtain lunar soil samples from the storage container 33, the storage container 33 can be designed as a split structure. The storage container 33 includes an upper cover part and a storage part that are interconnected, and an elastic sheet is disposed at the end of the upper cover part away from the storage part.

[0100] Specifically, the top cover is detachably connected to the storage section, for example, via a threaded connection. When it is necessary to open the storage container 33 to obtain lunar soil samples, the operator can rotate the top cover to detach it from the storage section.

[0101] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 4 As shown, the container rack 31 includes multiple movable grippers 38, which are arranged one-to-one with multiple storage containers 33.

[0102] In this embodiment, each movable gripper 38 corresponds to a storage container 33, which allows the operator to easily operate on one or more storage containers 33. For example, a storage container 33 can be taken out or put in individually without affecting the position of other containers, thus improving the flexibility and convenience of operation.

[0103] The movable gripper 38 includes a fixed gripper and a movable gripper, which are hinged together to form a clamping opening.

[0104] Specifically, the opening and closing of the clamp is achieved through electromagnetic attraction. Further, an electromagnet is installed on the fixed clamp, and a permanent magnet is installed on the movable clamp at a corresponding position relative to the electromagnet. A torsion spring is installed on the hinge axis connecting the fixed and movable clamps, with its two ends connected to the fixed and movable clamps respectively. In its natural state, the torsion spring keeps the clamp open. When it is necessary to close the clamp, current is supplied to the electromagnet, generating a magnetic field that attracts the permanent magnet. This magnetic field overcomes the torsion of the torsion spring, causing the movable clamp to rotate around the hinge axis, thereby closing the clamp. When the power to the electromagnet is cut off, the magnetic field disappears, the torsion spring returns to its original deformation, and the resulting torsion returns the movable clamp to its initial position, reopening the clamp.

[0105] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0106] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. An in-situ lunar soil sampling device, characterized by, The application relates to a lunar soil sampling and screening device. The sampling mechanism (1) is arranged on one side of the screening mechanism (2), and the sampling mechanism (1) is used for collecting and transferring a lunar soil sample to the screening mechanism (2). The screening mechanism (2) comprises a screening bin (21), a screening filter cylinder (22) and a conveying rod (23), the top of the screening bin (21) is provided with an inlet, the inlet is an inclined surface, a protection plate in a grid structure is arranged at the inlet, the protection plate is inclined, the protection plate is used for intercepting lunar soil particles with a particle size greater than a preset value in the lunar soil sample, the screening filter cylinder (22) is arranged in the screening bin (21) and communicates with the inlet, the conveying rod (23) is rotatably arranged in the screening filter cylinder (22), the outer circumferential surface of the conveying rod (23) is provided with continuous spiral blades, the spiral blades are used for pushing the lunar soil sample to move axially in the screening filter cylinder (22) when the conveying rod (23) rotates, the screening filter cylinder (22) comprises a plurality of particle size grading units (221), the mesh sizes of the plurality of particle size grading units (221) gradually increase in the conveying direction of the lunar soil sample, the bottom of the screening bin (21) is provided with a plurality of collecting hoppers (24), the plurality of collecting hoppers (24) are arranged in one-to-one correspondence with the plurality of particle size grading units (221), the collecting hoppers (24) are used for collecting the lunar soil sample screened by the corresponding particle size grading units (221), and overflow ports (241) are formed in the side walls of the plurality of collecting hoppers (24), and the heights of the overflow ports (241) are different. The sampling mechanism (1) comprises:

2. The in-situ lunar soil sampling device of claim 1, wherein, A sampling arm (11), and the execution end of the sampling arm (11) is provided with a sampling shovel (12); the sampling arm (11) has at least three degrees of freedom. A plurality of partitions are arranged between the inner wall of the screening bin (21) and the outer wall of the screening filter cylinder (22), the partitions are distributed along the axial direction of the screening filter cylinder (22), and the partitions are used for isolating the lunar soil samples screened by different particle size grading units (221).

3. The in-situ lunar soil sampling device of claim 1, wherein, Further comprising:

4. The in-situ lunar soil sampling device of claim 1, wherein, A sub-packaging mechanism (3) arranged below the screening mechanism (2), the sub-packaging mechanism (3) is used for sub-packaging the lunar soil samples with different particle sizes, which fall from the collecting hoppers (24) and are screened, into different storage containers (33). The sub-packaging mechanism (3) comprises:

5. The in-situ lunar soil sampling device of claim 4, wherein, A container rack (31) and a rotating disc (32). The container rack (31) is rotatably arranged below the collecting hoppers (24), a plurality of storage containers (33) are detachably and uniformly distributed in the circumferential direction of the container rack (31), and when the container rack (31) drives the storage containers (33) to rotate, a part of the rotating path of the storage containers (33) is arranged in a vertical direction opposite to the collecting hoppers (24). ​ The rotating disc (32) is rotatably arranged between the collecting hopper (24) and the container rack (31), and a first opening (321) is formed in the rotating disc (32); when the rotating disc (32) is rotated to a position where the first opening (321) is arranged opposite to the collecting hopper (24) in the vertical direction, the lunar soil sample in the collecting hopper (24) can pass through the first opening (321) and penetrate the rotating disc (32) to fall into the corresponding storage container (33); when the rotating disc (32) is rotated to a position where the first opening (321) is arranged staggered to the collecting hopper (24) in the vertical direction, the solid part of the rotating disc (32) closes the discharge port of the collecting hopper (24).

6. The in-situ lunar soil sampling device of claim 5, wherein, The dispensing mechanism (3) further comprises: a first driving assembly (34), a second driving assembly (35) and a bearing seat (36); The first driving assembly (34) is connected with the container rack (31), and the first driving assembly (34) is used for driving the container rack (31) to rotate; the second driving assembly (35) is connected with the rotating disc (32), and the second driving assembly (35) is used for driving the rotating disc (32) to rotate; The bearing seat (36) is arranged between the first driving assembly (34) and the second driving assembly (35), one end of the bearing seat (36) is rotatably connected with the output shaft of the first driving assembly (34), and the other end is rotatably connected with the output shaft of the second driving assembly (35).

7. The in-situ lunar soil sampling device of claim 5, wherein, A plurality of second openings (322) are formed in the rotating disc (32), and a container cover (37) is detachably arranged in each of the second openings (322); when the rotating disc (32) and the container rack (31) are rotated to a position where the storage container (33) is arranged opposite to the second opening (322) in the vertical direction, the container cover (37) can be buckled on the storage container (33) under the action of the execution end of the sampling mechanism (1).

8. The in-situ lunar soil sampling device of claim 7, wherein, When the rotating disc (32) is rotated to a position where the first opening (321) is arranged opposite to the collecting hopper (24) in the vertical direction, any one of the plurality of second openings (322) is arranged staggered to the collecting hopper (24) in the vertical direction.

9. The in-situ lunar soil sampling device of claim 7, wherein, The top of the storage container (33) is provided with an elastic member (331); when the container cover (37) is buckled on the storage container (33) under the action of the execution end of the sampling mechanism (1), the execution end of the sampling mechanism (1) deforms the elastic member (331) through the container cover (37) to accumulate elastic potential energy; when the container cover (37) is buckled in place and stops the downward pressing action, the elastic member (331) releases the elastic potential energy to limit the container cover (37) in the vertical direction.

10. The in-situ lunar soil sampling device of claim 7, wherein, The container rack (31) comprises: A plurality of movable clamping jaws (38) are arranged one by one corresponding to the plurality of storage containers (33).

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