Fixing device for drill rod

Abstract

The invention discloses a fixing device for a drill rod. The fixing device comprises a drill rod holder, the drill rod and sliding rods, wherein the drill rod and the sliding rods are connected with the drill rod holder; the drill rod is arranged at the top of the drill rod holder, and a plurality of clamping grooves are formed in the drill rod holder; the drill rod is connected with the sliding rods through the clamping grooves, and the sliding rods are symmetrically arranged on the two sides of the drill rod holder; the sliding rod on each side is fixedly connected with an oil cylinder top cover which is arranged at the top of an oil cylinder, and the oil cylinders are arranged on a fixing seat; and the sliding rods are movably connected in the fixing seat, and a rack is arranged at the bottom of the fixing seat. According to the fixing device for the drill rod, the great superiority is achieved, the structure of the fixing device is simple, operation is convenient, the accuracy of the fixing position of the drill rod is ensured, a safer operation environment can be provided for a constructor, and the construction efficiency is accelerated; and the sliding rods freely slide in the fixing seat, the multiple clamping grooves are formed in the drill rod holder for selecting, the position of the drill rod can be appropriately adjusted, and the flexibility and operability of drilling are greatly improved.

Description

technical field [0001] The invention relates to a fixing device, in particular to a fixing device for a drill rod. Background technique [0002] At present, with the advancement of science and technology, my country's geological exploration and mining are gradually exploring deep geological layers. In the process of coal mining or geological exploration, a large number of borehole detection or drainage is required. The drill pipe is a steel pipe with a threaded tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or the bottom hole device at the bottom of the drilling well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and together with the drill bit to raise, lower or rotate the bottom hole device. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, the drill pipe can...

AI Technical Summary

Problems solved by technology

In addition to caring about the quality of the drill pipe's wear resistance, users are worried that the quality of the drill pipe will reduce the service life of the drill pipe and lead to low productivity; they are more concerned about the effect of the drill pipe drilling. Requirements, use the height ruler to draw the cross center line of the hole position, the line is required to be clear and accurate; the thinner the line, the higher the accuracy

Since the scribed lines always have a certain width, and the general accuracy of scribed lines can reach 0.25-0.5mm, vernier calipers or steel rulers should be used for inspection after scribed lines; if the inspection after scribed lines is not enough, often use Drilling the workpiece with the wrong line can not guarantee the position accuracy of the hole at all; especially in the place where the drilling requirements are high, often the accuracy of the chemical fiber is not checked after the line is drawn, and they are eager to drill the hole until the hole is found. It is too late when the position accuracy is out of tolerance

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