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AssigneesShenzhen University, Sichuan University
InventorsMingzhong GAO, Heping XIE, Ling CHEN, Zhilong ZHANG, Jun GUO, Zetian ZHANG, Yiqiang LU, Cong LI, Zhiqiang HE
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A drilling mechanism of a coring drilling rig has a central rod, a fluid channel starting module, an outer barrel, an outer barrel unlocking module, a shunting module and a drill bit. The central rod penetrates the fluid channel starting module. The outer barrel unlocking module and an inner cavity of the shunting module from back to front. The fluid channel starting module is behind the outer barrel and is connected to the outer barrel unlocking module. The shunting module is in front of the outer barrel unlocking module, and a hydraulic motor is connected in front of the shunting module. The outer barrel has a driving section that is a rotor of the hydraulic motor. The outer wall of the outer barrel is fixedly connected to a centralizer, and the front end of the outer barrel is connected to the drill bit.
A drilling mechanism of a coring drilling rig, characterized in that the mechanism comprises a central rod (14), a fluid channel starting module, an outer barrel (23), an outer barrel unlocking module, a shunting module and a drill bit, wherein the central rod (14) penetrates the inner cavity of the fluid channel starting module, the outer barrel unlocking module, and the shunting module from back to front. The fluid channel starting module is behind the outer barrel (23) and is connected to the outer barrel unlocking module. The shunting module is in front of the outer barrel unlocking module, and a hydraulic motor (7) is connected in front of the shunting module. The outer barrel (23) comprises a driving section (73), which is the rotor of the hydraulic motor (7). The outer wall of the outer barrel (23) is fixedly connected to a centralizer, and the front end of the outer barrel (23) is connected to the drill bit (8).
Dependencies are inferred from the claim text.