Drilling system and application of cam tool for rotary shaft in reverse circulation detection

摘要

If you are already registered, please log in first. The drilling tool outside the shaft consists of an external tube with an inlet there and an internal tube with an inlet there,The inner pipe is set to insert the vent of the outer pipe. A ring is defined between the opening of the inner tube and the outer tube through which the ring can pass. A cam part can be arranged on a part of the outer tube surface. The outer tube can be connected to the drill on the diamond plate. The cam part has a shaft which moves to a shaft of the outer tube,The tool is arranged to rotate on the camshaft, so as to hang the drilling rod installed on the outer pipe on a drilling center line, so as to guide the drill bit of the drilling hole.