Drilling Tool Thread Gauge Torque Tightening Mechanism

Abstract

The invention relates to a torque screwing mechanism of a drilling tool screw thread gauge. The mechanism is characterized by comprising a main support and an auxiliary support, wherein one ends of the main support and the auxiliary support are fixedly connected. The other ends of main support and the auxiliary support are respectively provided with a main jack catch and an auxiliary jack catch through movable joint screws. The end part of the main jack catch is provided with a first screw thread hole. The end part of the auxiliary jack catch is provided with a second screw thread hole. The interiors of the first and second screw thread holes are respectively connected with a torque rod hole fixing pin. The torque rod hole fixing pins are respectively arranged in two torque rod holes which are arranged on the drilling tool gauge symmetrically. The main jack catch and one end of a torque rod are screwed and fixed through the first screw thread hole arranged at one end of the main jack catch. The other end of the torque rod is fixedly connected with one end of a torque hammer rod. The torque hammer rod is vertical to the torque rod. A torque hammer is sleeved on the torque hammer rod. The upper end of the torque hammer rod is locked through a second nut. According to the invention, the operation safety is improved, and the operation danger coefficient is reduced; and symmetrical double-hole stress is provided, thus the screw thread gauge cannot be damaged.

Description

technical field [0001] The invention relates to a device for calibrating and inspecting petroleum thread gauges, in particular to a torque tightening mechanism for thread gauges of drilling tools. Background technique [0002] The thread gauge torque tightening device is used for tightening the tight distance when calibrating the thread gauge of drilling tools in the oil pipe industry. The existing device is very simple. A 90° right-angled round bar is equipped with a torque hammer, so that the torque hammer The force is generated under the gravity of the free fall to tighten the plug gauge and the ring gauge, and the structure is simple. However, in the current use, after one end of the round bar is inserted into the torque rod hole of the gauge, the edge of the torque rod hole of the gauge and ring gauge is hammered to form a lever support point, because of the leverage of the torque rod Under the force, the edge of the torque rod hole is damaged a lot. At the same time, ...

AI Technical Summary

Problems solved by technology

However, in the current use, after one end of the round bar is inserted into the torque rod hole of the gauge, the edge of the torque rod hole of the gauge and ring gauge is hammered to form a lever support point, because of the leverage of the torque rod Under the force, the edge of the torque rod hole is damaged a lot. At the same time, the depth of the torque rod hole is only 15mm. After the damage, the edge of the torque rod hole cannot form a strong support point, so that the gauge cannot be tightened and calibrated again, which brings great trouble to the work. trouble

At the same time, the end of the round rod and the bottom of the torque rod hole are extruded, and the end of the round rod gradually becomes arc-shaped. It often falls off accidentally when hammering and tightening, causing certain injuries to the calibration personnel, and is very dangerous.

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