The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 21, 2025

Filed:

Sep. 21, 2023
Applicant:

Ccteg Chongqing Research Institute, ChongQing, CN;

Inventors:

Qingfeng Wang, ChongQing, CN;

Dezhong Xin, ChongQing, CN;

Jun Wan, ChongQing, CN;

Hang Chen, ChongQing, CN;

Xiaohua Liu, ChongQing, CN;

Yuqing Xiao, ChongQing, CN;

Daihui Ma, ChongQing, CN;

Shizhai Zhang, ChongQing, CN;

Lin Yang, ChongQing, CN;

Zhengang Ma, ChongQing, CN;

Xin Dou, ChongQing, CN;

Min Tang, ChongQing, CN;

Jian Pu, ChongQing, CN;

Keyu Chen, ChongQing, CN;

Jinjun Lv, ChongQing, CN;

Yuan Wan, ChongQing, CN;

Xing Wang, ChongQing, CN;

Shiping Lu, ChongQing, CN;

Fujia Zhou, ChongQing, CN;

Changjiang Li, ChongQing, CN;

Yi Qin, ChongQing, CN;

Yange Yang, ChongQing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/02 (2006.01); E21B 7/04 (2006.01); E21B 19/14 (2006.01); E21B 44/00 (2006.01);
U.S. Cl.
CPC ...
E21B 7/04 (2013.01); E21B 3/02 (2013.01); E21B 19/14 (2013.01); E21B 44/00 (2013.01);
Abstract

The present invention relates to a coal mine intelligent directional drill and its drilling method, belonging to the technical field of coal mine drills. It comprises a moving platform, machine frame, clamper, main manipulator, power head, drill pipe storage system, control system, and hydraulic system. The power head structure is improved by adding an angle adjuster with accurate angle adjustment, locking, and anti-rotation functions. The angle adjuster is positioned on the gearbox side opposite the main motor, connected via a driving shaft. The control system includes a toolface azimuth detection and initialization system that works with the angle adjuster. This solves prior issues such as the absence of specialized toolface azimuth adjustment devices, low precision, low track adjustment efficiency, and challenges in achieving automatic directional drilling in the prior art. The invention enhances precision and efficiency, enabling automated, intelligent directional drilling.


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