Tightness detection device for oil casing coupling

Abstract

The application discloses a casing coupling close distance detection device, which comprises an equipment base, a coupling feeding and discharging mechanism is fixedly connected to the surface of the equipment base, a coupling conveying mechanism is also fixedly connected to the surface of the equipment base, the coupling conveying mechanism is arranged below the coupling feeding and discharging mechanism, a shell is also fixedly connected to the surface of the equipment base, a coupling clamping and rotating mechanism and a close distance detection mechanism are connected to the shell, the close distance detection mechanism is arranged close to the coupling clamping and rotating mechanism, the coupling conveying mechanism passes through the shell, a three-axis moving mechanism is fixedly connected to the surface of the equipment base, a centering detection mechanism and a plug gauge screwing mechanism which are arranged side by side are connected to the three-axis moving mechanism, and a torque monitoring mechanism is connected to the plug gauge screwing mechanism. The application realizes the detection of the close distance of the casing coupling, realizes the torque control in the measuring process, realizes the measurement of the borehole diameter of the coupling and the determination of the original point of the coupling through the centering detection, and avoids the thread damage caused by the wrong buckling in the detection process.

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