Lunar soil drilling sampling and discarding integrated device

Abstract

The application discloses a lunar soil drilling sampling and sample discarding integrated device, which comprises a support frame, a work station conversion module, a soil taking module, a soil drilling module, a sample discarding and heating module and a sealed box, the work station conversion module is arranged on the support frame and comprises a transmission flange and a flange rotating assembly, the soil taking module and the soil drilling module are arranged at the outer periphery of the transmission flange in a circumferential interval, the soil taking module comprises a soil taking device and a soil taking action assembly, the soil drilling module comprises a drill bit and a soil drilling action assembly, the soil taking action assembly and the soil drilling action assembly are fixedly connected to the end of the transmission flange and integrated in the sealed box, the sample discarding and heating module comprises a vertically arranged sample discarding plate, a heating furnace and a sample receiving disc, the soil taking device can be abuttingly matched with the sample discarding plate and used for discarding the sample in the soil taking device or above the sample receiving disc, and the soil taking device can be inserted into the cavity of the heating furnace and used for heating the lunar soil to obtain steam. The device improves the soil drilling and soil taking work efficiency and has a simple structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep space resource exploration, and particularly relates to a lunar soil drilling and sampling and sample discarding integrated device. BACKGROUND

[0002] Lunar soil is the most basic research object for studying the moon. In actual work, the lunar environment is harsh, with much lunar dust, low temperature, unreliable mechanism operation and the like, thereby affecting the drilling of lunar soil.

[0003] The drilling of lunar soil on the moon is difficult, and the lunar soil drilling device needs to be simple in movement, high in integration, high in reliability, large in rigidity and excellent in protection.

[0004] At present, the lunar soil drilling and soil taking mechanism in China is divided into two devices, and the two mechanisms are alternately operated, thereby increasing the operation time, increasing the lunar soil transportation process, reducing the lunar soil drilling and soil taking efficiency, and thus it is necessary to simplify the drilling and soil taking work.

[0005] In summary, the drilling and soil taking work efficiency of the present lunar soil drilling and soil taking device is low, the mechanism is complex, and a device with simple structure, high integration and high efficiency is needed. SUMMARY

[0006] The present application relates to the technical field of deep space resource exploration, and particularly relates to a lunar soil drilling and sampling and sample discarding integrated device.

[0007] To this end, the present application provides a lunar soil drilling and sampling and sample discarding integrated device, which comprises a support frame, a station conversion module, a soil taking module, a soil drilling module, a sample discarding and heating module and a sealed box. The station conversion module is arranged on the support frame and comprises a transmission flange and a flange rotation assembly. The soil taking module and the soil drilling module are arranged at intervals in the circumferential direction of the outer periphery of the transmission flange. The soil taking module comprises a soil taking device and a soil taking action assembly. The soil drilling module comprises a drill bit and a soil drilling action assembly. The soil taking action assembly and the soil drilling action assembly are fixedly connected to the end of the transmission flange and are integrated in the sealed box. The sample discarding and heating module comprises a vertically arranged sample discarding plate, a heating furnace and a sample receiving disc. The heating furnace is in the shape of a cylinder and is arranged vertically relative to the surface of the sample discarding plate with the furnace opening horizontally outward. The sample receiving disc is connected to the sample discarding plate and is arranged horizontally. The soil taking device can be in abutting engagement with the sample discarding plate for discarding the sample by the soil taking device, or can be in abutting engagement with the sample discarding plate above the sample receiving disc, so that the lunar soil falls into the sample receiving disc after the sample is discarded by the soil taking device, and the lunar soil particles are separated therefrom, or the soil taking device can be inserted into the cavity of the heating furnace for heating the lunar soil to obtain steam.

[0008] The soil taking module and the soil drilling module are integrated together, the drilling and soil taking work modes are switched in real time by the station conversion module, and the work efficiency is high.

[0009] Compared with the prior art, the present application also has the following technical features / advantages:

[0010] 1、 The present application can realize dustproof sealing of the driving assembly and good heat control without affecting the low-temperature working requirements of the drilling and sampling end by isolating the driving assembly from the drilling and sampling device.

[0011] 2、 The present application realizes unlimited sampling analysis of samples by compression deformation of the spring sheet, and overcomes the constraint of the existing sampling times.

[0012] 3、 The present application can realize the collection and extraction of samples with different particle sizes by reasonable design of the spring sheet interval, and has good collection ability for high-value granular samples.

[0013] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0015] Figure 1 is a structural schematic view of the lunar soil drilling and sampling and sample discarding integrated device of the present application;

[0016] Figure 2 is a structural schematic view of the lunar soil drilling and sampling and sample discarding integrated device of the present application, wherein the sealing box is removed;

[0017] Figure 3 is a structural schematic view of the work station conversion module of the present application;

[0018] Figure 4 is a structural schematic view of the soil taking module of the present application;

[0019] Figure 5 is an installation schematic view of the first stepping motor in the soil taking module of the present application;

[0020] Figure 6 is a work flow chart of the soil taking module of the present application;

[0021] Figure 7 shows the structural schematic views of two different use soil taking devices of the present application;

[0022] Figure 8 shows the structural schematic view of the soil drilling module of the present application;

[0023] Figure 9The working flow chart of the drill soil module of the present application is shown;

[0024] Figure 10 is a structural schematic diagram of the sample discarding and heating module of the present application;

[0025] Figure 11 is a schematic diagram of the sample discarding and sampling flow of the sample discarding and heating module of the present application;

[0026] Figure 12 is a schematic diagram of the gas taking flow of the sample discarding and heating module of the present application. DETAILED DESCRIPTION

[0027] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] The lunar soil drilling and sampling integrated device of the present application is composed of six parts, namely, a support frame 1, a work station conversion module 2, a soil taking module 3, a drill soil module 4, a sample discarding and heating module 5, and a sealed box 6. The work station conversion module 2 is provided with a work station to realize the switching of the drill soil and soil taking working modes. The drill soil module 4 is used to realize the drill soil function. The soil taking module 3 is used to realize the soil taking function.

[0029] The support frame 1 is used as a support module of the lunar soil drill soil module and is used to install a work station motor support 2-3, a harmonic reducer support 2-4, and a bearing support 2-13.

[0030] The work station conversion module 2 includes a work station motor installation ring buckle 2-1, a work station motor 2-2, a work station motor support 2-3, a harmonic reducer support 2-4, a flat key one 2-5, a harmonic reducer 2-6, a flat key two 2-7, a bearing upper end cover 2-8, a shaft clasp ring 2-9, a work station bearing 2-10, a sleeve 2-11, a transmission flange 2-12, and a bearing support 2-13.

[0031] The work station motor support 2-3 is fixed on the support frame 1 by screws and is used as a support for the work station motor 2-2. The work station motor 2-2 is placed on the work station motor support 2-3. The work station motor installation ring buckle 2-1 is connected to the work station motor support 2-3 by bolts to fix the work station motor 2-2 on the work station motor support 2-3.

[0032] The work station motor 2-2 outputs a rotation angle and is used to switch the drill soil and soil taking functions. The harmonic reducer support 2-4 is installed on the one side of the rotation shaft of the work station motor 2-2 and is fixed on the support frame 1 by screws and is used as a support for the harmonic reducer 2-6.

[0033] The harmonic reducer 2-6 is fixed on the right side of the harmonic reducer support 2-4. The high rotation speed and low torque of the work station motor 2-2 are changed into low rotation speed and high torque by the transmission of the flat key one 2-5.

[0034] 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 the 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.

[0035] Station bearing 2-10 supports transmission flange 2-12. The shaft end of transmission flange 2-12 extends into harmonic reducer 2-6, transmitting the speed and torque of harmonic reducer 2-6 via flat key 2-7. The flange end is fixed to drilling module 4 for rotation. The inner rings of the two station bearings 2-10 are transitionally fitted with the shaft of transmission flange 2-12, and the axial direction of transmission flange 2-12 is fixed by shaft retaining ring 2-9 and sleeve 2-11.

[0036] 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.

[0037] The cone head 3-1, a plurality of spring sheets 3-2 and a connecting plate 3-3 are welded together to form an earth-getter. The earth-getter has two forms: a ball cage form when getting soil, and a cylindrical form that is contracted.

[0038] Several spring leaves 3-2 extend along the longitudinal direction of the cage, with one end welded to the conical head 3-1 and the other end welded to the connecting plate 3-3. The spring leaves 3-2 are evenly distributed around the circumference of the cage. In the cylindrical configuration, the spring leaves are naturally contracted, tending to be straight strips, with small gaps between adjacent spring leaves. In the cage configuration, the spring leaves elastically deform, tending to be arc-shaped, with larger spacing between adjacent spring leaves.

[0039] 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.

[0040] 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 deformed into a spherical cage-shaped soil sampler under pressure. 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 surface.

[0041] The rotating frame 3-6 is fixedly installed on the end face of the transmission flange 2-12, ensuring the overall fixation of the soil sampling module 3. The stepping motor 3-9 is fixed on the rotating frame 3-6, used to drive the gear two 3-8 to rotate; the gear two 3-8 is axially fixed on the shaft of the stepping motor 3-9 through the shaft retaining ring one 3-14 and the shaft retaining ring two 3-15, and is driven by the flat key three 3-15.

[0042] The sliding bearing 3-5 is fixed on the rotating frame 3-6, used to support the rotating shaft one 3-4; the transmission nut 3-10 is fixed on the rotating frame 3-6, used to support the rotating shaft two 3-11; the end faces of the rotating shaft one 3-4 and the rotating shaft two 3-11 close to the gear one 3-7 are transitionally matched, and are fixed by the set screw; the gear one 3-7 is engaged with the gear one 3-8, used to transmit the rotation angle and the torque.

[0043] Under the action of the transmission nut 3-10, the rotating shaft one and the rotating shaft two are connected with the soil sampler, rotating and feeding at the same time, realizing the soil sampling work.

[0044] As shown in Figs. (a) and (b), by reasonably designing the interval and width of the spring sheet 3-2, the collection and extraction of samples with different particle sizes can be realized. Preferably, the rotating shaft one and the rotating shaft two are respectively connected with the soil samplers for collecting and extracting samples with different particle sizes. Figure 7

[0045] The soil drilling module 4 includes a drill bit 4-1, a shaft coupling 4-2, a stepping motor two 4-3, a locking nut one 4-4, a stepping motor two mounting plate 4-5, a linear motor mounting plate 4-6, a linear motor 4-7, a locking nut two 4-8, a polished rod 4-9, and a sliding bearing 4-10.

[0046] The linear motor mounting plate 4-6 is fixed on the rotating frame 3-6, used to mount the linear motor 4-7; the linear motor 4-7 is fixedly installed on the linear motor mounting plate 4-6, driving the stepping motor two mounting plate 4-5 to move linearly through threaded transmission.

[0047] The locking nut one 4-4, the locking nut two 4-8, the polished rod 4-9, and the sliding bearing 4-10 constitute a limiting and sliding assembly.

[0048] The auxiliary stepping motor two mounting plate 4-5 axially slides and limits the moving position of the stepping motor two mounting plate 4-5; the stepping motor two 4-3 is installed on the stepping motor two mounting plate 4-5, used to output the rotation speed for drilling soil; the shaft coupling 4-2 is installed at the two ends of the drill bit 4-1 and the stepping motor two 4-3, used to transmit the rotation speed and the torque output by the stepping motor two 4-3; the drill bit 4-1 is installed at one end of the shaft coupling, rotating with the stepping motor two 4-3, used to drill the soil.

[0049] As shown in Figs. (a) and (b), by reasonably designing the interval and width of the spring sheet 3-2, the collection and extraction of samples with different particle sizes can be realized. Preferably, the rotating shaft one and the rotating shaft two are respectively connected with the soil samplers for collecting and extracting samples with different particle sizes. Figure 9 ​As shown in (a), (b), (c), the drill bit 4-1 of the drill module 4 rotates and feeds at the same time, and is divided into three working states: standby, drilling and lifting.

[0050] The sample discarding and heating module 5 includes a sample discarding plate 5-1, a heating furnace 5-2 and a sample receiving plate 5-3.

[0051] As shown in (a), (b), (c), the drill bit 4-1 of the drill module 4 rotates and feeds at the same time, and is divided into three working states: standby, drilling and lifting. Figure 11 As shown in (a), (b), (c), the drill bit 4-1 of the drill module 4 rotates and feeds at the same time, and is divided into three working states: standby, drilling and lifting.

[0052] When the conical head 3-1 and the spring sheet 3-2 press the sample discarding plate, the spring sheet is bent, the internal space is opened, and the sample discarding process is completed; different bottom hole sizes of the sample receiving plate 5-3 can be used for screening large-particle lunar soil.

[0053] As shown in (a), (b), (c), the drill bit 4-1 of the drill module 4 rotates and feeds at the same time, and is divided into three working states: standby, drilling and lifting. Figure 12 As shown in (a), (b), (c), the drill bit 4-1 of the drill module 4 rotates and feeds at the same time, and is divided into three working states: standby, drilling and lifting.

[0054] The sealing box 6 is made of plates connected by screws, and the combination is fixedly connected with the rotating frame 3-6 by screws, so that the sealing box 6 can rotate with the rotating frame 3-6, preventing the lunar soil from falling into the driving assembly and protecting the driving assembly.

[0055] The above 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 body of the lunar rover, and the two are matched to realize the functions of sample discarding, receiving and heating and gas detection.

[0056] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated device for lunar soil drilling, sampling and disposal, characterized in that: It includes 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. The station conversion module is arranged on the support frame, and includes a transmission flange and a flange rotation 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 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 includes 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 with the furnace opening facing outward horizontally. The sample receiving tray is connected to the discarded sample plate and arranged horizontally. The soil taker can be pressed against the sample discarding plate to discard the sample, or pressed against the sample discarding plate above the sample receiving tray to allow the lunar soil to fall into the sample receiving tray after the soil taker discards the sample, thereby separating lunar soil particles from the lunar soil. Alternatively, the soil taker can be inserted into the cavity of the heating furnace to heat the lunar soil and extract steam. The soil taker includes a conical head, a plurality of spring sheets, and a connecting plate. The soil taker has two forms, one is a ball cage soil taking 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 retracted. In the ball cage soil taking form, the spring sheets are elastically bent and tend to be arc-shaped, and adjacent spring sheets open to provide a gap for soil taking.

2. The integrated lunar soil drilling, sampling and disposal device according to claim 1, 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 periphery of the transmission flange.

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

4. The integrated lunar soil drilling, sampling and disposal device according to claim 1, characterized in that: The soil taking module includes a soil taking device and a soil taking action assembly, wherein the soil taking device consists of two parts and is symmetrically arranged about the central axis of the transmission flange.

5. The integrated lunar soil drilling, sampling and disposal device according to claim 4, characterized in that: The soil-taking action assembly 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 is matched with the rotating shaft 1, and the transmission nut is matched 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 provided at the end of each of them.

6. The integrated lunar soil drilling, sampling and disposal device according to claim 4, characterized in that: The adjacent spring pieces of the two soil samplers have different closing gaps so as to collect samples with different particle sizes.

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

8. The integrated lunar soil drilling, sampling and 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.

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

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