The invention provides a switching device of a
submarine drill machine power head and a wire line
coring system, and belongs to the technical field of
well drilling equipment. The switching device of the
submarine drill machine power head and the wire line
coring system comprises a power head, a wire line
coring system, a sliding frame and a sliding oil cylinder. The sliding frame is fixed to a mast of a
drill machine, and a slide rail arranged horizontally is arranged on the sliding frame; the power head is mounted on the slide rail, and the power head forms an integrated structure through a connecting plate and the wire line coring system; the sliding oil cylinder is fixedly mounted on the sliding frame, the
tail end of a telescopic arm of the sliding oil cylinder is connected with the power head, the power head moves horizontally along the slide rail under driving of the sliding oil cylinder, and switching of the power head and the wire line coring system at the well opening position is achieved. By adopting the switching device, automatic switching of the power head and the wire line coring system and automatic operation of breaking away from clamping of a core
barrel and a fisher are achieved, therefore the wire line coring technology can be applied to
submarine deep-hole drill machines, and the purposes that auxiliary
operation time is shortened, and the working efficiency and the quality of cores are improved are achieved.