Lunar soil drilling sampling and sample discarding integrated device

Abstract

The invention discloses a lunar soil drilling sampling and sample discarding integrated device, which comprises a support frame, a station conversion module, a soil sampling module, a soil drilling module, a sample discarding and heating module and a sealing box, and is characterized in that the station conversion module is arranged on the support frame and comprises a transmission flange and a flange rotating assembly; the soil sampling module and the soil drilling module are arranged on the periphery of the transmission flange in the circumferential direction in a spaced mode, the soil sampling module comprises a soil sampler and a soil sampling action assembly, the soil drilling module comprises a drill bit and a soil drilling action assembly, and the soil sampling action assembly and the soil drilling action assembly are fixedly connected to the end of the transmission flange and integrated in a sealing box; the sample discarding and heating module comprises a laterally-standing sample discarding plate, a heating furnace and a sample receiving disc, the soil sampler can be matched with the sample discarding plate in a pressing manner and is used for discarding a sample or discarding the sample above the sample receiving disc, and the soil sampler can be inserted into a cavity of the heating furnace and is used for heating lunar soil to take steam. The device improves the working efficiency of soil drilling and taking and is simple in structure.

Description

Technical Field

[0001] The present invention relates to the field of deep space resource exploration technology, and in particular to an integrated lunar soil drilling sampling and sample discarding device. Background Art

[0002] Lunar soil is the most basic research object for studying the moon. In actual work, the lunar environment is harsh, with a lot of lunar dust, low temperature, unreliable mechanism operation, etc., which have an impact on drilling lunar soil.

[0003] Drilling lunar soil on the moon is difficult and places high demands on the lunar soil drilling device. The lunar soil drilling device needs to have simple movement, high integration, high reliability, high rigidity and excellent protection.

[0004] At present, the domestic lunar soil drilling and sampling mechanism is divided into two devices, and the two mechanisms operate alternately, which increases the operation time, increases the lunar soil transportation process, and reduces the efficiency of lunar soil drilling and sampling. Therefore, it is necessary to simplify the drilling and sampling work.

[0005] In summary, the current lunar soil drilling and sampling devices have low efficiency and complex mechanisms, and require devices with simple structures, high integration, and high efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide an integrated device for lunar soil drilling sampling and sample disposal to overcome the problems of complex structure and low soil drilling efficiency in the prior art.

[0007] To this end, the present invention provides an integrated device for lunar soil drilling sampling and sample disposal, including a support frame, a workstation conversion module, a soil taking module, a soil drilling module, a sample disposal and heating module, and a sealing box, wherein the workstation conversion module is arranged on the support frame, including a transmission flange and a flange rotating assembly, the soil taking module and the soil drilling module are arranged circumferentially at intervals on the outer periphery of the transmission flange, the soil taking module includes a soil taking device and a soil taking action assembly, the soil drilling module includes a drill bit and a soil drilling action assembly, wherein the soil taking action assembly and the soil drilling action assembly are fixedly connected to the transmission flange The ends of the sample are integrated in a sealed box, the sample disposal and heating module comprises a side-standing sample disposal plate, a heating furnace and a sample receiving tray, the heating furnace is cylindrical, arranged vertically relative to the sample disposal plate surface and the furnace mouth faces horizontally outward, the sample receiving tray is connected to the sample disposal plate and arranged horizontally, the soil taker can be pressed and matched with the sample disposal plate for sample disposal by the soil taker, or pressed and matched with the sample disposal plate above the sample receiving tray for the lunar soil to fall into the sample receiving tray after the soil taker discards the sample, thereby separating the lunar soil particles therefrom, or the soil taker can be inserted into the cavity of the heating furnace for heating the lunar soil and extracting steam.

[0008] The present invention integrates the soil taking module and the soil drilling module, and the soil drilling and taking working mode is switched in real time by the workstation conversion module, so the working efficiency is high.

[0009] Compared with the prior art, the present invention also has the following technical features / advantages: 1. The present invention can achieve dustproof sealing of the driving assembly and good thermal control by isolating the driving assembly from the drilling sampling device without affecting the low-temperature working requirements of the drilling and sampling ends; 2. The present invention realizes unlimited sampling and analysis of samples through compression deformation of the spring sheet, thus overcoming the constraints of the existing sampling times; 3. The present invention can realize the collection and extraction of samples with different particle sizes by reasonably designing the spring sheet interval; it has good collection ability for high-value granular samples.

[0010] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic structural diagram of the integrated device for lunar soil drilling sampling and sample discarding of the present invention; Figure 2 It is a schematic diagram of the structure of the integrated device for lunar soil drilling sampling and sample disposal of the present invention, wherein the sealing box is removed; Figure 3 It is a structural schematic diagram of the station conversion module of the present invention; Figure 4 It is a structural schematic diagram of the soil taking module of the present invention; Figure 5 It is a schematic diagram of the installation of the stepping motor 1 in the soil taking module of the present invention; Figure 6 It is a work flow chart of the soil taking module of the present invention; Figure 7 The schematic diagrams of the structures of two soil taking devices with different uses of the present invention are shown; Figure 8 A schematic structural diagram of a soil drilling module of the present invention is shown; Fig. 9 The working flow chart of the soil drilling module of the present invention is shown; Fig.10 It is a structural schematic diagram of the sample discarding and heating module of the present invention; Fig.11 It is a schematic diagram of the sample discarding and sampling process of the sample discarding and heating module of the present invention; Fig.12It is a schematic diagram of the gas extraction process of the sample discarding and heating module of the present invention. DETAILED DESCRIPTION

[0012] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0013] The integrated device for lunar soil drilling sampling and sample disposal of the present invention is composed of six parts, namely a support frame 1, a station conversion module 2, a soil collection module 3, a soil drilling module 4, a sample disposal and heating module 5, and a sealing box 6. By setting the station of the station conversion module 2, the switching of the soil drilling and soil collection working mode is realized. The soil drilling function is realized by the soil drilling module 4. The soil collection function is realized by the soil collection module 3.

[0014] The support frame 1 serves as a support module for the lunar soil drilling and sampling module and is used to install the workstation motor bracket 2-3, the harmonic reducer bracket 2-4 and the bearing bracket 2-13.

[0015] The workstation conversion module 2 includes a workstation motor mounting ring 2-1, a workstation motor 2-2, a workstation motor bracket 2-3, a harmonic reducer bracket 2-4, a flat key 1 2-5, a harmonic reducer 2-6, a flat key 2-7, a bearing upper end cover 2-8, a shaft retaining ring 2-9, a workstation bearing 2-10, a sleeve 2-11, a transmission flange 2-12, and a bearing bracket 2-13.

[0016] The station motor bracket 2-3 is fixed to the support frame 1 by screws, serving as a support for the station motor 2-2; the station motor 2-2 is placed on the station motor bracket 2-3, and the station motor mounting ring 2-1 and the station motor bracket 2-3 are connected by bolts to fix the station motor 2-2 on the station motor bracket 2-3.

[0017] The station motor 2-2 outputs a rotation angle for switching the drilling and taking functions. The harmonic reducer bracket 2-4 is installed on one side of the rotating shaft of the station motor 2-2, and the bottom surface is fixed to the support frame 1 by screws, serving as a support for the harmonic reducer 2-6.

[0018] The harmonic reducer 2-6 is fixed on the right side of the harmonic reducer bracket 2-4. Through the transmission of the flat key 2-5, the high speed and low torque of the station motor 2-2 are changed into low speed and high torque by the harmonic reducer 2-6.

[0019] The bearing bracket 2-13 is fixed to the support frame 1 by screws, the bearing upper end cover 2-8 is fixed to the bearing bracket 2-13 by bolts, and two work station bearings 2-10 are placed between the bearing bracket 2-13 and the bearing upper end cover 2-8, and the outer ring of the work station bearing 2-10 is fixed in the axial direction.

[0020] The work station bearing 2-10 is used to support the transmission flange 2-12. The shaft end of the transmission flange 2-12 extends into the harmonic reducer 2-6, and the speed and torque of the harmonic reducer 2-6 are transmitted through the flat key 2-7. The flange end is fixed on the drilling module 3 and is used to rotate the drilling module; the inner rings of the two work station bearings 2-10 are transitionally matched with the shaft of the transmission flange 2-12, and the axial direction of the transmission flange 2-12 is fixed by the shaft retaining ring 2-9 and the sleeve 2-11.

[0021] The soil excavation module 3 includes a conical head 3-1, a spring sheet 3-2, a connecting plate 3-3, a rotating shaft 1 3-4, a sliding bearing 3-5, a rotating frame 3-6, a gear 1 3-7, a gear 2 3-8, a stepping motor 3-9, a transmission nut 3-10, a rotating shaft 2 3-11, a connecting plate 2 3-12, a conical head 2 3-13, a shaft retaining ring 3-14, a flat key 3 3-15, and a shaft retaining ring 2 3-16.

[0022] The cone head 3-1, a plurality of spring sheets 3-2 and a connecting plate 3-3 are welded together to form a soil extractor. The soil extractor has two forms, one is a ball cage form when taking soil, and the other is to be contracted into a cylindrical form.

[0023] A plurality of spring sheets 3-2 extend along the longitudinal direction of the ball cage, one end of which is welded to the conical head 3-1, and the other end of which is welded to the connecting plate 3-3, and the plurality of spring sheets 3-2 are evenly distributed in the circumferential direction of the ball cage. In the cylindrical form, the spring sheets are in a naturally contracted state, tending to be straight strips, and the gap between adjacent spring sheets is small. In the ball cage form, the spring sheets are elastically deformed, tending to be arc-shaped, and the spacing between adjacent spring sheets becomes larger.

[0024] The connecting plate 3-3 is fixed to the rotating shaft 3-4 by means of set screws. The conical head 3-1 has a guiding function, and the conical groove inside can store lunar soil.

[0025] like Figure 6 As shown in (a), (b), and (c), when the rotating shaft 3-4 rotates, it moves downward at the same time. During this process, the lower end of the cylindrical soil sampler penetrates into the lunar soil and is compressed and deformed into a spherical cage-shaped soil sampler. At the same time, during the rotation process, the lunar soil is collected into the spherical cage. When the rotating shaft 3-4 rotates in the opposite direction, the spherical cage-shaped soil sampler shrinks into a cylindrical shape and carries the lunar soil away from the lunar soil surface.

[0026] The rotating frame 3-6 is fixedly mounted on the end face of the transmission flange 2-12 to ensure the overall fixation of the soil taking module 3. The stepper motor 3-9 is fixed on the rotating frame 3-6 to drive the rotation angle of the gear 2 3-8; the gear 2 3-8 is axially fixed on the stepper motor 3-9 shaft through the shaft retaining ring 1 3-14 and the shaft retaining ring 2 3-15, and is driven by the flat key 3 3-15.

[0027] The sliding bearing 3-5 is fixed on the rotating frame 3-6 to support the rotating shaft 1 3-4; the transmission nut 3-10 is fixed on the rotating frame 3-6 to support the rotating shaft 2 3-11; the end faces of the rotating shaft 1 3-4 and the rotating shaft 2 3-11 are transitionally matched with the gear 1 3-7 and fixed with set screws; the gear 1 3-7 is meshed with the gear 1 3-8 to transmit the rotation angle and torque.

[0028] Under the action of the transmission nut 3-10, the rotating shaft 1 and the rotating shaft 2 are connected to the soil sampler, and they rotate and feed at the same time to realize the soil sampling work.

[0029] like Figure 7 As shown in (a) and (b), by properly designing the interval and width of the spring sheet 3-2, the collection and extraction of samples of different particle sizes can be achieved. Preferably, the first and second rotating shafts are respectively connected to soil sampling devices for sampling and extracting samples of different particle sizes.

[0030] The soil drilling module 4 includes a drill bit 4-1, a coupling 4-2, a stepper motor 2 4-3, a locking nut 1 4-4, a stepper motor 2 mounting plate 4-5, a linear motor mounting plate 4-6, a linear motor 4-7, a locking nut 2 4-8, a bare rod 4-9, and a sliding bearing 4-10.

[0031] The linear motor mounting plate 4-6 is fixed on the rotating frame 3-6 and is used to mount the linear motor 4-7; the linear motor 4-7 is fixedly mounted on the linear motor mounting plate 4-6 and drives the stepper motor second mounting plate 4-5 to move linearly through thread transmission.

[0032] The locking nut 1 4-4, the locking nut 2 4-8, the bare rod 4-9 and the sliding bearing 4-10 constitute a limiting and sliding assembly.

[0033] The auxiliary stepper motor second mounting plate 4-5 slides axially and limits the moving position of the stepper motor second mounting plate 4-5; the stepper motor second 4-3 is installed on the stepper motor second mounting plate 4-5, and is used to output the rotation speed for drilling the soil; the coupling 4-2 is installed at both ends of the drill bit 4-1 and the stepper motor second 4-3, and is used to transmit the rotation speed and torque output by the stepper motor second 4-3; the drill bit 4-1 is installed at one end of the coupling, and rotates with the stepper motor second 4-3, and is used to drill the soil.

[0034] like Fig. 9 As shown in (a), (b) and (c), the drill bit 4-1 of the soil drilling module 4 rotates while performing feeding motion, and is divided into three working states: standby, drilling and lifting the drill.

[0035] The sample discarding and heating module 5 comprises a sample discarding plate 5-1, a heating furnace 5-2, and a sample receiving tray 5-3.

[0036] like Fig.11As shown in (a) and (b), the sample discarding module includes a sample discarding process and a sample receiving process. When the sample receiving tray 5-3 with a larger bottom opening is used, the lunar soil will directly pass through the sample receiving tray 5-3. This is the sample discarding process. When the sample receiving tray 5-3 with a smaller bottom opening is used, the lunar soil larger than the hole diameter will remain in the sample receiving tray 5-3. This is the sample receiving process.

[0037] When the conical head 3-1 and the spring sheet 3-2 squeeze the sample discarding plate, the spring sheet bends, the internal space opens, and the sample discarding process is completed; different sample receiving plates 5-3 have different sizes of bottom openings, which can be used to screen large particles of lunar soil.

[0038] like Fig.12 As shown in (a), the heating furnace 5-2 is installed on the discarded sample plate 5-1. When the conical head 3-1 and the spring sheet 3-2 are moved to the inside of the heating furnace 5-2 and sealed, the heating furnace 5-2 works to heat the soil evaporation gas. The heating furnace is connected to the gas composition detector through an external pipeline.

[0039] The sealing box 6 is made of plates spliced ​​together by screws, and the assembly is fixedly connected to the rotating frame 3-6 by screws. Therefore, the sealing box 6 can rotate with the rotating frame 3-6 to prevent lunar soil from falling into the driving assembly and protect the driving assembly.

[0040] The support frame 1 is arranged at the end of the manipulator of the lunar rover, and the sample discarding and heating module 5 is arranged on the lunar rover body, and the two cooperate to realize the sample discarding, sample receiving and heating steam extraction detection functions.

[0041] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lunar soil drilling sampling and sample disposal integrated device, characterized in that: It includes a support frame, a workstation conversion module, a soil taking module, a soil drilling module, a sample discarding and heating module, and a sealing box. The station conversion module is arranged on the support frame, and includes a transmission flange and a flange rotating assembly. The soil taking module and the soil drilling module are arranged at intervals on the outer circumference of the transmission flange. The soil taking module includes a soil taking device and a soil taking action component, and the soil drilling module includes a drill bit and a soil drilling action component, wherein the soil taking action component and the soil drilling action component are fixedly connected to the end of the transmission flange and the two are integrated in a sealing box. The discarded sample and heating module comprises a discarded sample plate, a heating furnace and a sample receiving tray. The heating furnace is cylindrical and arranged vertically relative to the discarded sample plate surface with the furnace opening facing outward horizontally. The sample receiving tray is connected to the discarded sample plate and arranged horizontally. The soil extractor can be pressed against the sample disposal plate to discard samples, or can be pressed against the sample disposal plate above the sample receiving tray to allow the lunar soil to fall into the sample receiving tray after the soil extractor discards samples, thereby separating lunar soil particles therefrom. Alternatively, the soil extractor can be inserted into the cavity of a heating furnace to heat the lunar soil and extract steam.

2. The integrated lunar soil drilling sampling and sample disposal device according to claim 1 is characterized in that: The soil taking module and the soil drilling module are arranged at intervals of 90° in the circumferential direction of the outer circumference of the transmission flange.

3. The integrated lunar soil drilling sampling and sample disposal device according to claim 1 is characterized in that: The support frame, the workstation conversion module, the soil taking module, the soil drilling module, and the sealing box constitute a movable device used by the end of the lunar rover manipulator, and the sample discarding and heating module is a fixed device fixedly connected to the lunar rover.

4. The integrated lunar soil drilling sampling and sample disposal device according to claim 1, characterized in that: The soil picker includes a conical head, a plurality of spring sheets, and a connecting plate. The soil picker has two forms, one is a ball cage soil picking form, and the other is a cylindrical contraction form. The plurality of spring sheets extend along the longitudinal direction of the ball cage and are evenly distributed in the circumferential direction of the ball cage. In the cylindrical contraction form, the spring sheets are in a naturally contracted state and tend to be straight strips, and adjacent spring sheets are gathered. In the ball cage soil picking form, the spring sheets are elastically bent and tend to be arc-shaped, and adjacent spring sheets open up a soil picking gap.

5. The integrated lunar soil drilling sampling and sample disposal device according to claim 4 is characterized in that: The soil taking module comprises a soil taking device and a soil taking action assembly, wherein the soil taking device consists of two parts which are symmetrically arranged about the central axis of the transmission flange.

6. The integrated lunar soil drilling sampling and sample disposal device according to claim 5, characterized in that: The soil taking action component is used for two soil taking devices at the same time, including a rotating frame, a stepper motor 1, a gear 1, a gear 2, a linear bearing, a transmission nut, a rotating shaft 1 and a rotating shaft 2, wherein the linear bearing cooperates with the rotating shaft 1, the transmission nut cooperates with the rotating shaft 2 through thread transmission, the linear bearing and the transmission nut are fixedly connected to the opposite sides of the rotating frame, the rotating shaft 2 is connected to the rotating shaft 1, and a soil taking device is respectively provided at the end of the two.

7. The integrated lunar soil drilling sampling and sample disposal device according to claim 5, characterized in that: The adjacent spring sheets of the two soil samplers have different closing gaps so as to collect samples with different particle sizes.

8. The integrated lunar soil drilling sampling and sample disposal device according to claim 1, characterized in that: The flange rotating assembly comprises a station motor, a harmonic gear reducer, and a station bearing, wherein the station bearing is used to support the transmission flange.

9. The integrated lunar soil drilling sampling and sample disposal device according to claim 1, characterized in that: The soil drilling module includes a linear motor, a guide assembly, a stepper motor 2, and a drill chuck, wherein the guide assembly includes a linear motor mounting plate, a stepper motor mounting plate, and a plurality of optical bars arranged in a circle between the linear motor mounting plate and the stepper motor 2 mounting plate, wherein the linear motor mounting plate is a fixed end, and the stepper motor 2 mounting plate is a movable end.

10. The integrated lunar soil drilling sampling and sample disposal device according to claim 1, characterized in that: The discarded sample and heating module includes more than two sample receiving trays, and the bottom openings of the two or more sample receiving trays have different sizes and are used to screen lunar soil particles of different particle sizes.

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