A drill pipe for deep sampling of lunar soil with sample locking function

Abstract

The invention relates to a lunar soil deep sampling drill pipe with a sample locking function, comprising a drill pipe body, a sample locking structure and an internal coring tube, the sample locking structure is provided with a sample blocking mechanism; the internal coring tube and The sample locking structures are respectively sleeved in the drill pipe body and can move axially relative to the drill pipe body. A pin is provided on the outer wall of one end of the inner core tube, and a pin is provided on the inner wall of the sample locking structure. Limiting chute, one end of the inner core tube is sleeved in the sample locking structure, and the pin is slidably arranged in the limit chute; the inner core tube is locked relative to the sample The axial movement of the structure makes the sample blocking mechanism change from being stretched by the inner core tube to a closed state. The lunar soil deep sampling drill pipe of the present invention adopts a double-layer drill pipe structure, and the external threaded drill pipe can effectively improve the drilling efficiency. The inner core pipe adopts a polished rod with a sample locking structure, which can extract samples more quickly .

Description

technical field [0001] The invention relates to the technical field of deep sampling for lunar exploration, in particular to a drilling rod for deep sampling of lunar soil with a sample locking function. Background technique [0002] One of the most important and distinctive tasks of lunar exploration is to selectively collect various types of lunar samples with great scientific value on the lunar surface. The collection of lunar samples in lunar exploration can be traced back to the Apollo era. The major achievements of the Apollo lunar landing program are reflected in the collected lunar samples, as well as a large number of new discoveries made around these samples in the world after half a century of research. . A total of 381.7Kg of lunar samples were recovered during the 6 Apollo lunar exploration activities, of which about 24Kg were samples with particles smaller than 1cm. Most of these samples were subjected to preliminary particle size sorting at Johnson Space Cent...

AI Technical Summary

Problems solved by technology

[0006] Under the joint action of the drilling rig's own weight and the astronaut's feed force, the auger drills into the lunar soil, but it is often difficult to pull out the core tube from the lunar soil after drilling to the designed depth. Tools for drill pipe and core pipe

Images