Ccteg Chongqing Research Institute Co., Ltd.

Xiaohua Liu

Xing Wang

Jun Wan

Shiping Lu

Fujia Zhou

Xin Dou

Yuqing Xiao

Lin Yang

Min Tang

Jian Pu

Jinjun Lv

Shizhai Zhang

Keyu Chen

Yuan Wan

Hang Chen

Dezhong Xin

Zhengang Ma

Yi Qin

Daihui Ma

Qingfeng Wang

Changjiang Li

Yange Yang

Yiting Liu

The present invention relates to a combined drilling system with double rotary driving devices and a control method, belonging to the technical field of coal mine drills. The other end of a driving shaft in the gearbox connects to an adjuster, which includes a transmission shaft, fixed toothed disk, moving toothed disk, rotary seat, end cover, and a rotary speed reducer with a self-locking function. One end of the transmission shaft is fixedly connected to the driving shaft. The fixed and moving toothed disks are sheathed on the transmission shaft, with the fixed toothed disk engaged with the moving toothed disk through skewed teeth. The moving toothed disk is rotationally connected and can slide axially along the transmission shaft. The rotary seat is fixedly connected to the moving toothed disk, while the rotary speed reducer's output disk is coaxially fixed to the rotary seat, enabling controlled rotation.

Combined drilling system with double rotary driving devices and control method therefor

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.

Coal mine intelligent directional drill and drilling method therefor

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ChongQing, China

Xiaohua Liu