Design and comparative analysis of self-propelling drill bit applied to deep-sea stratum drilling robot

作     者：Peihao ZHANG Xingshuang LIN Hao WANG Jiawang CHEN Zhenwei TIAN Zixin WENG Ziqiang REN Peng ZHOU Peihao ZHANG;Xingshuang LIN;Hao WANG;Jiawang CHEN;Zhenwei TIAN;Zixin WENG;Ziqiang REN;Peng ZHOU

作者机构：Ocean CollegeZhejiang UniversityZhoushan 316021China Hainan InstituteZhejiang UniversitySanya 572025China The Engineering Research Center of Oceanic Sensing Technology and EquipmentMinistry of EducationZhoushan 316000China 

基　　金：supported by the Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City(No.2021JJLH0051) the Finance Science and Technology Project of Hainan Province(No.ZDKJ202019) the 2020 Research Program of Sanya Yazhou Bay Science and Technology City(No.SKYC-2020-01-001),China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2023年第24卷第10期

页      码：925-936页

摘      要：Robotic subsea stratum drilling robot is a method for new subsea stratigraphic geological investigation and resource *** at the front end is the main source of resistance to the robot’s motion in the *** there is no continuous and strong downward drilling force as in conventional drilling rigs,robot movement relies heavily on the drill bit to reduce the drilling *** this study we propose a self-propelling drill bit that can discharge soil debris to provide propulsive force and reduce the *** key parameter of the drill bit design,the spiral blade lead angle,was determined by theoretical analysis of the drill bit’s soil discharging *** verify the structural advantages of the self-propelling drill bit in reducing resistance,a comparative analysis with a conventional conical drill bit was *** drilling process of both bits was simulated using finite element simulation at various rotation speeds,the penetration force and torque data of both drill bits were obtained,and tests prepared accordingly in subsea soil were *** simulations and tests verified that the penetration force of the self-propelling drill bit was lower than that of the conventional conical drill *** self-propelling drill bit can reduce the resistance effectively,and may play an important role in the stratum movement of drilling robots.

主 题 词：Subsea stratum investigation Stratum drilling robot Self-propelling drill bit Penetration resistance 

学科分类：081505[081505] 080202[080202] 08[工学] 0804[工学-材料学] 0815[工学-矿业类] 0824[工学-林业工程类] 0802[工学-机械学] 0814[工学-地质类] 082401[082401] 

核心收录：

D　O　I：10.1631/jzus.A2200351

馆 藏 号：203121198...