Power head positioning and adjusting device

The utility model relates to a power head displacement device for a drilling machine, in particular to a power head positioning and adjusting device, and belongs to the technical field of drilling machines for geological exploration, hydrological wells, coal fields, oil and gas field exploration and the like. The moving part is slidably connected with a power head, an air cylinder is connected below the power head to enable the power head to move in the horizontal direction, the moving part is further provided with a fine adjustment assembly composed of flat iron A and flat iron B, and the fine adjustment assembly is used for fine adjustment after the position of the power head is adjusted by the air cylinder. Through relative sliding of the flat iron A and the flat iron B, hole site calibration can be accurately controlled after the position of the power box is adjusted by the air cylinder, so that the displacement accuracy of the air cylinder is compensated. 本实用新型涉及一种钻机用动力头位移装置，尤其涉及一种动力头定位调节装置，其属于地质勘探、水文水井、