Coal mine automatic directional drill

Abstract

The present invention belongs to the technical field of coal mine drills, and relates to a coal mine automatic directional drill, comprising a moving platform, a machine frame, a clamper, a main manipulator, a power head, a drill pipe storage system, a control system and a hydraulic system. In the present invention, a structure of the power head is improved, an angle adjuster is arranged on one side of a gearbox away from a main motor, and a transmission shaft in the angle adjuster is circumferentially and fixedly connected with a driving shaft, thus a toolface azimuth is adjusted accurately and efficiently and a structure of a rotary brake device of the main motor is simplified by the angle adjuster which has functions of accurate angle adjustment, locking and anti-rotation. Functions of a large number of internal parts are transferred to an external rotary speed reducer, which greatly reduces difficulty of maintenance, reduces consumption of wearing parts, and solves the problems of lack of a special toolface azimuth adjustment device, low precision and low efficiency of track adjustment, and being difficult to realize automatic directional drilling in the prior art.