The utility model belongs to the technical field of drilling
machine equipment, and particularly relates to a small vehicle-mounted drilling
machine which comprises a vehicle body, the vehicle body comprises a vehicle head, a
vehicle frame and moving wheels at the bottom of the
vehicle frame, and a drilling mechanism is arranged at the end, away from the vehicle head, of the
vehicle frame and comprises a fixed arm rotationally installed on the vehicle frame. The movable arm is connected with the fixed arm in a sliding mode, the fixed arm is connected with the output end of a
diagonal bracing oil cylinder, the
diagonal bracing oil cylinder is installed on the frame, a large arm supporting oil cylinder is arranged on the fixed arm, the output end of the large arm supporting oil cylinder is connected with the movable arm, and a power head mechanism is installed on the movable arm through a sliding frame. According to the utility model, the drilling
machine is assembled on the vehicle to form a
whole body, the mobility and the
operability are good, the maneuverability is strong, and the
drill rod fixing mechanism is arranged, so that the installation and the disassembly of the
drill rod are convenient.