Executing mechanism for rotary guide device and rotary guide device

Abstract

An executing mechanism for a rotary guide device includes a driving valve core, a driven valve core, a first cavity, a second cavity and a high-pressure slurry driving channel. The first cavity includes a first low-pressure port communicating with a low-pressure slurry; and a first high-pressure port communicating with a high-pressure slurry. The driving valve core adjusts a pressure in the first cavity; and the driven valve core moves in response to a pressure difference between the first cavity and the second cavity. The high-pressure slurry driving channel switches between an open state and a close state in response to movement of the driven valve core. A rotary guide device includes a rotary main shaft, a drill bit, a push mechanism, and the executing mechanism. The push mechanism includes a push block and a push plunger piston, the high-pressure slurry driving channel communicates with one end, distal from the push block, of the push plunger piston.

Dependencies are inferred from the claim text.