Abstract: A crawler-type and height adjustable drilling machine includes a crawler moving part, a temporary support, a lift cylinder, a cross beam, a roof anchor drill for setting roof anchor bolts and cables which that can turn left or right around 30°, a side-wall-anchor drill for setting side wall anchor bolts and cables that can turn toward one side around 90°, a platform for the drills, a hydraulic system and operation console, and a crawler driving motor. A coal pushing shovel is in front of the crawler moving part and below the platform. Double columns are provided on which a slipway is mounted for left and right moving of the roof anchor drill. The platform is also provided with a forward and backward slipways on which the side-wall-anchor drill is arranged so that a cylinder mounted on the platform pushes the side-wall-anchor drill forward and backward.

Abstract: A crawler-type and height adjustable drilling machine for setting roof and/or side anchor bolts and anchor cables, comprising a crawler moving part, a temporary support, a cylinder for height adjusting, a cross beam, a hydraulic drill for setting roof anchor bolts and anchor cables which can turn around 30°, a hydraulic system and operation console, a crawler driving motor and slipways for forward and backward movement of the drill for side anchor bolts and anchor cables, wherein that a coal pushing shovel is arranged in front of the crawler moving part and below the drilling platform which supports at its front part the hydraulic drill for setting roof anchor bolts and anchor cables which can turn left or right; double columns are provided on which a slipway for left and right moving is mounted; the hydraulic drill for setting side anchor bolts and anchor cables is arranged at one side to the central part of the platform for the drill and can turn toward one side around 90°; the platform for the drills is pr