Moon lunar soil shallow layer drilling and coring method

A coring and shallow technology, applied in the direction of sampling device, etc., to achieve the effect of outstanding technical effect

Inactive Publication Date: 2010-04-14
WUHAN DIDA CHANGJIANG BIT
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for drilling cores in the shallow layer of

Method used

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  • Moon lunar soil shallow layer drilling and coring method
  • Moon lunar soil shallow layer drilling and coring method
  • Moon lunar soil shallow layer drilling and coring method

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Embodiment Construction

[0019] Now further illustrate how the present invention is implemented in conjunction with accompanying drawings:

[0020] The moon soil shallow layer drilling coring method of the present invention is aimed at the characteristic that the lunar shallow layer lunar soil is loose sand without cementation, adopts the center drilling of the drill bit, and as the drill bit drills deep, the dried The loose core is collected by the coring casing around the drill bit.

[0021] The drilling tool for implementing the method of the present invention is composed of a screw drill bit, a coring sleeve, a connecting sleeve and a bearing. The lower part of the screw drill bit 5 is a drill blade 5-1, and two bearings 1 are statically fitted and connected to the stepped bearing on the upper part of the screw drill bit 5. Seat 5-2, connecting sleeve 2 is fixedly connected with bearing 1, the LY section at the upper end of the outer nozzle of coring sleeve 4 is threadedly connected with the LN se...

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Abstract

The invention relates to a moon lunar soil shallow layer drilling and coring method, which relates to a moon unconsolidated formation lunar soil drilling exploration sampling method. The invention adopts a drill head to conduct center-drilling hole aiming at the characteristics that the moon shallow layer lunar soil is loose sand without bonding property, as the drilling deep-going of the drill bit, drilled dry loose rock cores are led to core collect through a coring cannula on the periphery of the drill bit, the lower portion of a screw thread drill bit of a drilling tool which uses the method of the invention is a drill bit vane, an upper bearing seat and a bearing are statically connected in a matching way, a connecting sleeve and a bearing are fixedly connected, the coring cannula is connected with screw threads of the connecting sleeve through the upper end of an outer pipe hole, and is sleeved on the periphery of the threaded rod drill bit, and the inner pipe hole of the coring cannula integrates rock cores. The moon lunar soil shallow layer drilling and coring method has innovative technology and outstanding technical effect, improves the maximum coring rate of 3.07% of the traditional drilling inner-tube coring method to 95%, comprehensively solves the difficult problems of coring in loose sand grain layers, and supplies a feasible moon lunar soil shallow layer drilling and coring method and an application drilling tool for lunar exploration geologic research.

Description

technical field [0001] The invention relates to a method for drilling and coring shallow layers of lunar soil, belonging to the field of geological drilling, and in particular to a drilling and sampling method for lunar loose layer lunar soil. Background technique [0002] The coring method that is currently used in the field of earth geological drilling is to use a core drill bit (that is, the drill bit has an inner diameter and an outer diameter). Then use the clamping device to lock the core that enters the core tube in the core tube and raise the ground to obtain the core. The coring method generally adopts single-action single-tube or single-action double-tube. [0003] Single-action single-tube drill bit drilling: When the core is filled with the core tube, the material is clamped, and the core is clamped by the friction between the material and the core, so as to break the core and extract the core. [0004] Drilling with single-action double-tube drill bit: mainly ...

Claims

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Application Information

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IPC IPC(8): G01N1/08
Inventor 李天明李大佛陈洪俊刘红旗许少宁
Owner WUHAN DIDA CHANGJIANG BIT
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