Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Dezhong XIN"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 236-243 (2024)
The automation degree of sealing technology in coal mine is insufficient, and the automatic directional drilling rig can improve the automation degree of sealing. A colloidal slip with double friction force for automatic directional drilling machine
Externí odkaz:
https://doaj.org/article/b907e92348de436b9f30926f1e8bbe73
Autor:
Zhongbin WANG, Lei SI, Jinheng GU, Dong WEI, Jianbo DAI, Dezhong XIN, Xiufeng ZHANG, Hang CHEN, Fei XING
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 220-237 (2024)
Drilling robot for rockburst prevention is a necessary equipment for achieving unmanned pressure relief in coal mines with high in-situ stress. Developing a reliable drilling trajectory measurement system while drilling is an important measure to ens
Externí odkaz:
https://doaj.org/article/ec194543868a46c790f16b5f93e478fb
Autor:
Dezhong Xin, Hang Chen
Publikováno v:
Journal of Physics: Conference Series. 2095:012043
The four-stage drill pipe automatic conveying system is developed to solve the problem that the capacity of the existed drill pipe conveying system is very limited, which needs workers to add drill pipes frequently during drilling and can’t fit the