公开(公告)号：US20220213750A1

公开(公告)日：2022-07-07

申请号：US17309231

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Heping XIE ,  Ling CHEN ,  Mingzhong GAO ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC: E21B25/08 ,  E21B25/12

Abstract: A core barrel sealing structure includes a core barrel, a drilling machine outer barrel, a chain mail-type flap valve and a trigger mechanism. The flap valve includes a valve seat and a chain mail-type valve flap. The trigger mechanism includes a trigger inner barrel and a trigger block. The trigger block is arranged in a through hole in a sidewall of the trigger inner barrel, and an inner wall of the drilling machine outer barrel is provided with a recessed opening adapted to the trigger block. When the core barrel is located in the valve seat, the valve flap is opened by 90° and is located between the trigger inner barrel and the drilling machine outer barrel. When the core barrel is lifted upwards, the valve flap returns to a top face of the valve seat to make sealing contact with a sealing face of a valve opening.

公开(公告)号：US20220213745A1

公开(公告)日：2022-07-07

申请号：US17309234

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Mingzhong GAO ,  Heping XIE ,  Ling CHEN ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC: E21B23/04 ,  E21B4/02 ,  E21B4/18 ,  E21B21/10 ,  E21B25/00

Abstract: A driving system for a core drilling rig has a driving motor. The driving motor has an outer rotor and an inner stator, and mutually-matched convex ribs are provided on the inner wall of the outer rotor and the outer wall of the inner stator. The outer rotor and the inner stator are in clearance fit. A clearance between the outer rotor and the inner stator is a driving liquid channel. The length of the outer rotor is less than that of the inner stator. The outer rotor is provided between the front and rear ends of the inner stator. The outer rotor is connected to an outer cylinder. The rear end of the inner stator is connected to a coupling.

公开(公告)号：US20220213747A1

公开(公告)日：2022-07-07

申请号：US17309233

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Mingzhong GAO ,  Heping XIE ,  Ling CHEN ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Ru ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC: E21B23/04 ,  E21B21/10 ,  E21B34/06 ,  E21B25/10

Abstract: A control mechanism of a core drilling rig has a central rod and an outer barrel. The central rod passes through, from the rear to the front, the inner cavities of a fluid channel activation module, an outer barrel unlocking module, a flow diverging module, and a coring barrel connecting module. The coring barrel connecting module has a core tube connecting pipe, a core ring bearing, a bearing inner ring, a ball A and a ball B. The core tube connecting pipe is connected at the front side thereof to the coring barrel. The bearing inner ring is inside the core tube connecting pipe. The core ring bearing is connected to an inner wall of the outer barrel. A ball slot A is formed on the inner wall of the core ring bearing. The core tube connecting pipe is provided with has a ball hole A and a ball slot B.

公开(公告)号：US20220213736A1

公开(公告)日：2022-07-07

申请号：US17309235

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Mingzhong GAO ,  Heping XIE ,  Ling CHEN ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Ru ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC: E21B10/60 ,  E21B25/10 ,  E21B25/08

Abstract: A drilling fluid channel structure of a core drilling rig includes a fluid channel activation module, a pressure relief module, a flow diverging and blocking module, a driving fluid channel and a cooling fluid channel. The fluid channel activation module, the pressure relief module and the flow diverging and blocking module are connected sequentially from the rear to the front. The driving fluid channel and the cooling fluid channel are connected at the rear side thereof to the flow diverging and blocking module. The driving fluid channel includes a driving section located between a stator and a rotor of a driving motor. The driving fluid channel is provided with a driving fluid outlet at the front side of the driving section. The cooling fluid channel passes through a layer disposed between an integrity-preserving compartment and an outer barrel.

公开(公告)号：US20200230767A1

公开(公告)日：2020-07-23

申请号：US16693207

申请日：2019-11-22

Applicant: Sichuan University

Inventor： Wu ZHAO ,  Zeyuan YU ,  Zida ZHANG ,  Ling CHEN ,  Xin GUO ,  Miao YU ,  Kai ZHANG ,  Hao WAN ,  Lin DU ,  Wei JIANG ,  Nianhan WU

IPC: B23Q11/10

Abstract: This application relates to lubrication, and more particularly to an external cooling MQL manipulator and a machine tool and a lubrication method using the machine tool. The external cooling MQL manipulator includes a suspension structure, a robot arm, a controller and an oil mist generator. The suspension structure fixedly connects the robot arm and a frame, and a nozzle is provided on a free end of the robot arm; an oil mist generator is connected to the nozzle for ejecting oil mists to a processing area. When the machine tool works, the controller selects the corresponding lubrication parameters according to the processing parameters such as the cutter type and the workpiece material. The first motor and the second motor are controlled to rotate by the controller according to real-time changes of the processing positions detected by the detecting component, thereby adjusting the position of the nozzle.