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Planetary multifunctional coring bit, coring method and coring system

A coring bit and multi-functional technology, which is applied in the field of coring device processing, can solve the problem that the coring device cannot meet the collection of samples of different strengths, etc., and achieve the effect of improving the success rate of sampling

Active Publication Date: 2022-04-05
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the coring device in the prior art cannot meet the collection of samples with different strengths, the present invention provides a planetary multifunctional coring drill bit, a coring method and a coring system

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  • Planetary multifunctional coring bit, coring method and coring system

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Embodiment Construction

[0045] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0046] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0047] Refer to attached figure 1 to attach Figure 5 , the first aspect of the present invention provides a planetary multifunctional coring drill bit, including a controller, a primary coring assembly 100, a secondary coring assembly, and a connecting plate 400, and the primary coring assembly and the secondary coring assembly are all connected to the The controller signal is connected; the primary coring assembly and the secondary coring assembly are connected to the mechanical arm of the Mars rover t...

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Abstract

The invention belongs to the technical field of coring device machining, particularly relates to a planetary multifunctional coring drill bit, a coring method and a coring system, and aims to solve the problem that a coring device cannot meet collection of samples with different strengths. The coring bit comprises a controller, a primary coring assembly, a secondary coring assembly and a connecting plate. The primary coring assembly drills a sample area and drills an initial rock core based on an instruction sent by the controller; the secondary coring assembly drills the initial rock core based on an instruction sent by the controller, and the controller obtains the type of the initial rock core based on a preset pressure value and an actual pressure value obtained by a pressure detection module arranged in the secondary coring assembly so as to formulate a corresponding control instruction; if the actual pressure value is larger than the preset pressure value, the secondary coring assembly is controlled to return to the initial position, and the primary coring assembly is controlled to obtain an initial rock core; otherwise, the secondary coring assembly is controlled to collect the sample rock core according to the preset path; the coring device can be used for coring samples with different strengths.

Description

technical field [0001] The invention belongs to the technical field of coring device processing, and in particular relates to a planetary multifunctional coring drill bit, a coring method and a coring system. Background technique [0002] The "Perseverance" will drill holes in the Jezero crater on Mars in 2021, the first attempt to collect rock and regolith samples on Mars. According to the data sent back, the drill bit of the rover's robotic arm drilled to a depth of nearly 8 cm, and the drill hole was in good shape, but the sample tube was empty. The reason for the failure was that the rock was not strong enough to collect core samples. The drill bit breaks the rock into fine debris, which can be left in the hole or in debris piles. [0003] The second sampling success of "Perseverance" was attributed to the change of the collection object. The collection object was a large rock on the ground, and the strength of the collected rock was greatly improved, so the sampling w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C51/00
Inventor 郑博李守定李晓赫建明毛天桥李关访武艳芳
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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