CN113686606A - Small celestial body star soil sampling device - Google Patents
Small celestial body star soil sampling device Download PDFInfo
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- CN113686606A CN113686606A CN202110974094.2A CN202110974094A CN113686606A CN 113686606 A CN113686606 A CN 113686606A CN 202110974094 A CN202110974094 A CN 202110974094A CN 113686606 A CN113686606 A CN 113686606A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
- G01N2001/085—Grabs
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a small celestial body star soil sampling device which comprises a fixing mechanism, a push rod mechanism and a grabbing mechanism, wherein the fixing mechanism, the push rod mechanism and the grabbing mechanism are connected with a detector; the push rod mechanism is fixed in the fixing mechanism and comprises an electric push rod and a push disc, the push disc is fixedly connected with the telescopic end of the electric push rod, and the fixed end of the electric push rod is fixed in the fixing mechanism; the grabbing mechanism comprises a plurality of grabbing supporting rods, the fixed ends of the grabbing supporting rods are fixed on the push plate, a plurality of elastic bristles are arranged at the grabbing ends of the grabbing supporting rods, and the elastic bristles are inclined upwards. Adopt a little celestial body star soil sampling device of above-mentioned structure, directly prick into star soil through snatching branch, the star soil granule is cliied through resilience force and the frictional force of snatching the elastic seta bionic structure on the branch to the star soil that is licked, has simple structure, occupation space is little, the quality is light and the advantage that the power consumption is low.
Description
Technical Field
The invention relates to the technical field of deep space exploration sampling, in particular to a small celestial body star soil sampling device.
Background
The small celestial bodies store early information of solar system evolution, are important carriers for researching solar system origin, detect the small celestial bodies and obtain surface star soil samples, are beneficial to researching the material composition of the small celestial bodies, and have important significance for exploring the origin of the solar system and developing space resources. In recent years, the probe becomes a hot spot in the international deep space exploration field, and only probes in the United states and Japan land on small celestial bodies in the world at present. The japanese falcon first probe landed on a small celestial body and sampled back, which uses a projectile to impact the surface of the small celestial body, causing particle sputtering of surface star soil and rock mass and entering the sampler through the angled cover for storage. The detection task of the asteroid designed in China is implemented in 3 stages in 10 years, namely asteroid detection, sampling return and comet detection; the probe samples were taken mainly for asteroid 2016HO3 and comet 311. Because the asteroid has the characteristic of microgravity, the main technical difficulty in the sampling process aiming at the asteroid is to solve how the sampler can collect the scattered body under the condition of microgravity; meanwhile, in consideration of the lifting cost and difficulty, the designed device has the characteristics of low energy consumption, low mass, small volume and the like; and the constraint of the star environment condition also makes the manufacturing of the sampling device face a plurality of difficulties.
Disclosure of Invention
The invention aims to provide a small celestial body star soil sampling device, which directly pricks a grabbing support rod into star soil, and the licked star soil clamps star soil particles through resilience force and friction force of an elastic bristle bionic structure on the grabbing support rod, and has the advantages of simple structure, small occupied space, light weight and low energy consumption.
In order to achieve the purpose, the invention provides a small celestial body star soil sampling device which comprises a fixing mechanism, a push rod mechanism and a grabbing mechanism, wherein the fixing mechanism, the push rod mechanism and the grabbing mechanism are connected with a detector;
the push rod mechanism is fixed in the fixing mechanism and comprises an electric push rod and a push disc, the push disc is fixedly connected with the telescopic end of the electric push rod, and the fixed end of the electric push rod is fixed in the fixing mechanism;
the grabbing mechanism comprises a plurality of grabbing supporting rods, the fixed ends of the grabbing supporting rods are fixed on the push plate, a plurality of elastic bristles are arranged at the grabbing ends of the grabbing supporting rods, and the elastic bristles are inclined upwards.
Preferably, fixed establishment includes flange, solid fixed cylinder and positioning disk, seted up a plurality of positioning hole on the positioning disk and be fixed in the solid fixed cylinder, gu fixed cylinder diameter is less than flange's diameter, gu fixed cylinder one end with flange fixed connection, electric putter's stiff end is fixed in on the flange, flange with the detector is connected.
Preferably, the grabbing support rods are obliquely arranged and penetrate through the positioning through holes, and the diameters of the positioning through holes are larger than those of the grabbing support rods and correspond to one another.
Preferably, the electric push rod drives the push disc to move up and down in the fixed cylinder, and the push disc drives the grabbing support rod to move up and down in the positioning through hole.
Preferably, the elastic bristles are elastic metal pricking pins and are arranged in an upward inclined mode, 4-8 elastic metal pricking pins are arranged on each grabbing support rod, and the elastic metal pricking pins are distributed on the grabbing ends in a surrounding mode and are arranged in a staggered mode.
Preferably, the grabbing support rod comprises a rigid support rod and an elastic support rod, when sampling is carried out, the rigid support rod is directly pricked into the star soil for collection, and the elastic support rod is collected on the surface of the star soil.
Therefore, the small celestial body star soil sampling device adopting the structure has the following beneficial effects:
(1) the star soil particles are clamped by the rebounding force and the friction force of the elastic bristle bionic structure on the grabbing supporting rod through the star soil which is directly pricked into the grabbing supporting rod, and the licked star soil has the advantages of simple structure, small occupied space, light weight and low energy consumption.
(2) Snatch branch slope and set up and pass positioning hole, the positioning hole diameter is greater than snatch diameter and the one-to-one of branch, every snatchs mutual independence between the branch, and all snatchs the radial stroke scope of branch by the positioning disk restriction through the different positioning hole in the positioning disk, respectively snatch branch intertwine when preventing to move, and the positioning hole of positioning disk can be set for according to actual need simultaneously, and accessible positioning hole is injectd and is snatched position, quantity and the inclination of branch to the star soil size is got to the control clamp, realizes the star soil sampling task in the jumbo size scope.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a small celestial body star soil sampling device of the present invention;
FIG. 2 is an exploded view of a small celestial body star soil sampling device of the present invention;
FIG. 3 is a schematic diagram of the acquisition process of the small celestial body star soil sampling device.
Reference numerals
1. A fixing mechanism; 11. a connecting flange; 12. a fixed cylinder; 13. positioning a plate; 131. positioning the through hole; 2. a push rod mechanism; 21. an electric push rod; 22. pushing the disc; 3. grabbing the support rod; 31. elastic bristles; 4. star soil; 5. a material collector.
Detailed Description
Examples
Fig. 1 is a schematic structural diagram of a small celestial body star soil sampling device of the invention, and fig. 2 is an explosion diagram of the small celestial body star soil sampling device of the invention, and as shown in the figure, the small celestial body star soil sampling device comprises a fixing mechanism 1, a push rod mechanism 2 and a grabbing mechanism which are connected with a detector.
The push rod mechanism 2 is fixed in the fixing mechanism 1, the push rod mechanism 2 comprises an electric push rod 21 and a push disc 22, the push disc 22 is fixedly connected with the telescopic end of the electric push rod 21, and the fixed end of the electric push rod 21 is fixed in the fixing mechanism 1. Fixing mechanism 1 includes flange 11, a solid fixed cylinder 12 and positioning disk 13, has seted up a plurality of positioning hole 131 on positioning disk 13 and has been fixed in solid fixed cylinder 12 in, gu fixed cylinder 12 diameter is less than flange 11's diameter, gu fixed cylinder 12 one end and flange 11 fixed connection, electric putter 21's stiff end is fixed in flange 11 on, push away dish 22 and solid fixed cylinder 12 clearance fit, push rod mechanism 2 drives the up-and-down motion of snatching branch 3 during the sampling. The connecting flange 11 is connected with the detector, so that the sampler can be controlled to act, and the supporting function of the inner parts is achieved.
Snatch the mechanism and include a plurality of branch 3 of snatching, snatch branch 3 and include rigidity branch and elasticity branch, snatch the stiff end of branch 3 and be fixed in pushing away the dish 22 on, snatch the end outside of snatching of branch 3 and be provided with a plurality of elasticity setae 31, elasticity setae 31 tilt up setting. Snatch 3 slope settings of branch and pass positioning hole 131, positioning hole 131 diameter is greater than the diameter and the one-to-one that snatch branch 3, every snatchs mutual independence between the branch, and all pass through different positioning hole 131 in positioning disk 13, snatch 3 radial stroke ranges of branch by positioning disk 13 restriction, respectively snatch branch 3 intertwine when preventing to move, positioning hole 131 of positioning disk 13 can be set for according to actual need simultaneously, accessible positioning hole 131 prescribes a limit to snatch the position of branch 3, quantity and inclination, thereby star soil 4 size are got to the control clamp, realize the star soil sampling task in the jumbo size scope.
So that the grasping rod 3 can move up and down in the positioning through-hole 131. That is, the electric push rod 21 drives the push disc 22 to move up and down in the fixed cylinder 12, and the push disc 22 drives the grabbing support rod 3 to move up and down in the positioning through hole 131. The structure of the elastic setae 31 is designed bionically by referring to the inverted wrapping needles of the xanthium sibiricum belonging to the family of Compositae, so the elastic setae 31 are elastic metal prickers and are arranged obliquely upwards, 4-8 elastic metal prickers are arranged on each grabbing supporting rod 3, and a plurality of elastic metal prickers are distributed on the grabbing ends in a surrounding manner and are arranged in a staggered manner. The elastic bristles 31 of the present embodiment are made of an elastic metal with a large bending strength, so that the elastic bristles 31 are still in the elastic deformation range when being bent to the maximum stroke. The elastic bristles 31 can be bent during sampling, and the elastic bristles 31 clamp the star soil 4 through resilience and friction force during sampling.
The sampling process is as follows:
FIG. 3 is a schematic diagram of the collecting process of the small celestial body star soil sampling device, and as shown in the figure, the detector moves to a specified sampling position, so that the mechanical arm drives the small celestial body star soil sampling device to move to the position above a sampled position and a small distance is reserved between the small celestial body star soil sampling device and the star soil 4 at the sampled position. The electric push rod 21 extends out, the push disc 22 descends in the fixed cylinder 12 and drives the grabbing support rod 3 to descend, and the grabbing support rod 3 is gradually exposed out of the fixed cylinder 12. The electric push rod 21 continuously extends until the push disc 22 contacts with the positioning disc 13 and stops descending, at the moment, the grabbing support rod 3 is bent, the elastic bristles 31 directly contact with the star soil 4, the rigid support rod is directly pricked into the star soil 4, and the elastic support rod contacts with the surface of the star soil. The electric push rod 21 retracts, the elastic support rod in the grabbing support rod 3 slowly recovers to the radial straight state, and the elastic setae 31 clamp the star soil 4 through resilience force and friction force. The detector manipulator moves the sampling device to the sample collection box 5, the push rod mechanism 2 continues to ascend, when the star soil 4 clamped by the grabbing support rod 3 moves to the positioning through hole 131, the star soil 4 cannot continue to move upwards through the positioning through hole 131, the grabbing support rod 3 continuously moves upwards to cause the star soil 4 to be subjected to downward extrusion force of the positioning disk 13, meanwhile, the star soil 4 downwards extrudes the elastic bristles 31 to enable the elastic bristles 31 to be opened and tend to be straight, until the elastic bristles 31 cannot provide enough supporting force to enable the star soil 4 to fall into the collector 5, the elastic bristles 31 restore the original upward angle, the electric push rod 21 returns to the initial position, and one-time sampling work is finished.
Therefore, the small celestial body star soil sampling device adopting the structure directly pricks the grabbing support rod into the star soil, and the licked star soil clamps star soil particles through the resilience force and the friction force of the elastic bristle bionic structure on the grabbing support rod, so that the small celestial body star soil sampling device has the advantages of simple structure, small occupied space, light weight and low energy consumption.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (6)
1. A small celestial body star soil sampling device is characterized in that: comprises a fixing mechanism, a push rod mechanism and a grabbing mechanism which are connected with a detector;
the push rod mechanism is fixed in the fixing mechanism and comprises an electric push rod and a push disc, the push disc is fixedly connected with the telescopic end of the electric push rod, and the fixed end of the electric push rod is fixed in the fixing mechanism;
the grabbing mechanism comprises a plurality of grabbing supporting rods, the fixed ends of the grabbing supporting rods are fixed on the push plate, a plurality of elastic bristles are arranged at the grabbing ends of the grabbing supporting rods, and the elastic bristles are inclined upwards.
2. The celestial star soil sampling device of claim 1, wherein: fixing mechanism includes flange, solid fixed cylinder and positioning disk, seted up a plurality of positioning hole on the positioning disk and be fixed in the solid fixed cylinder, gu fixed cylinder diameter is less than flange's diameter, gu fixed cylinder one end with flange fixed connection, electric putter's stiff end is fixed in flange is last, flange with the detector is connected.
3. The celestial star soil sampling device of claim 2, wherein: the grabbing support rods are obliquely arranged and penetrate through the positioning through holes, and the diameters of the positioning through holes are larger than those of the grabbing support rods and correspond to one another.
4. The celestial star soil sampling device of claim 3, wherein: the electric push rod drives the push disc to move up and down in the fixed cylinder, and the push disc drives the grabbing support rod to move up and down in the positioning through hole.
5. The celestial star soil sampling device of claim 1, wherein: the elastic bristles are elastic metal pricking pins which are arranged in an upward inclined mode, 4-8 elastic metal pricking pins are arranged on each grabbing support rod, and the elastic metal pricking pins are distributed on the grabbing ends in a surrounding mode and are arranged in a staggered mode.
6. The celestial star soil sampling device of claim 1, wherein: the grabbing support rod comprises a rigid support rod and an elastic support rod, when sampling is carried out, the rigid support rod is directly pricked into the star soil for collection, and the elastic support rod is collected on the surface of the star soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974094.2A CN113686606A (en) | 2021-08-24 | 2021-08-24 | Small celestial body star soil sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974094.2A CN113686606A (en) | 2021-08-24 | 2021-08-24 | Small celestial body star soil sampling device |
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| CN113686606A true CN113686606A (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110974094.2A Pending CN113686606A (en) | 2021-08-24 | 2021-08-24 | Small celestial body star soil sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115675940A (en) * | 2022-10-18 | 2023-02-03 | 中国石油大学(北京) | Small celestial body star soil collector and collecting method thereof |
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| US20080066244A1 (en) * | 2006-09-15 | 2008-03-20 | Noble Edward J | Brush and broom bristle |
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| CN111122215A (en) * | 2018-10-30 | 2020-05-08 | 哈尔滨工业大学 | Brush type asteroid surface star soil sampling device |
| CN111947962A (en) * | 2020-07-01 | 2020-11-17 | 北京卫星制造厂有限公司 | Adhesive tape adsorption sampler suitable for extraterrestrial celestial body |
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2021
- 2021-08-24 CN CN202110974094.2A patent/CN113686606A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080066244A1 (en) * | 2006-09-15 | 2008-03-20 | Noble Edward J | Brush and broom bristle |
| CN205410228U (en) * | 2016-03-11 | 2016-08-03 | 广东华南工业设计院 | Hair cleaning brush |
| CN208551674U (en) * | 2017-12-06 | 2019-03-01 | 福建师范大学 | A kind of hair cleaning besom |
| TWM576852U (en) * | 2018-10-25 | 2019-04-21 | 健彰實業股份有限公司 | Sweeper device |
| CN111122215A (en) * | 2018-10-30 | 2020-05-08 | 哈尔滨工业大学 | Brush type asteroid surface star soil sampling device |
| CN209529058U (en) * | 2019-01-11 | 2019-10-25 | 杭州余杭弘创物业有限公司 | It is a kind of to avoid the anti-refuse sweeping equipment to get wet of hair adherency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115675940A (en) * | 2022-10-18 | 2023-02-03 | 中国石油大学(北京) | Small celestial body star soil collector and collecting method thereof |
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Application publication date: 20211123 |
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