Ice core drilling tool

• Main Authors: AN CHUNLEI, CUI XIANGBIN, ZOU MINGRUI, GUO JINGXUE, LI LIN, LI YUANSHENG, SHI GUITAO, MA HONGMEI, HU ZHENGYI
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2018
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses an ice core drilling tool, and relates to the technical field of drilling tools in polar region environment. The ice core drilling tool comprises a drive assembly, an inner shell and a cutting head, wherein the inner shell is connected with the drive assembly, and a containing space with a lower end opening is formed in the inner shell. The cutting head is detachably connected to the bottom end of the inner shell, and is arranged in a mode of surrounding the opening of the containing space. A drilling knife used for molding an ice core sample is arranged on the outer side wall of the cutting head, an ice taking knife capable of popup is arranged on the inner side wall of the cutting head, and the ice taking knife is used for cutting off the ice core sample. The icecore drilling tool can drill the ice core samples with larger volume in one time, the ice taking efficiency is higher, the structure is reasonable, and the reliability is high. 本发明公开种冰芯钻具，涉及极地环境钻具技术领域。冰芯钻具包括驱动组件，还包括内壳体，内壳体与驱动