Geological drill rod

Abstract

The invention discloses a geological drill rod. The geological drill rod comprises a connecting pipe, a left ball head connecting rod and a right ball head connecting rod. A left rod body and a right rod body are correspondingly arranged at the left end and the right end of the connecting pipe; connecting pipe concave grooves are formed in the two ends of the connecting pipe; connecting rod concave grooves are formed in the ends, connected with the connecting pipe, of the left rod body and the right rod body; the outer ends of the left ball head connecting rod and the right ball head connecting rod are of arc-shaped structures; the arc-shaped structures are embedded in an arc-shaped groove formed by connecting the concave groove of the connecting pipe and the concave groove of the connecting rod and is attached to the arc-shaped groove; the inner ends of the left ball head connecting rod and the right ball head connecting rod are embedded in the connecting pipe; limiting holes are formed in the arc-shaped structures; insertion grooves are formed in the position, corresponding to the limiting holes, of the connecting pipe; and pins are arranged between the slots and the limiting holes. Compared with the prior art, the geological drill rod has the beneficial effects that the structure is simple, connection is convenient and fast, the connecting position of the drill rod is prevented from being eroded through optimization design, and the service life of the drill rod is prolonged.

Description

technical field [0001] The invention relates to the field of drill pipes, in particular to a geological drill pipe. Background technique [0002] The drill pipe plays the role of transmitting power and conveying mud in the drill string system. During the working process, it will be subjected to extremely harsh alternating torque and vibration. Therefore, it must have good torsion resistance and impact resistance to ensure the normal use of the drill pipe. . [0003] Basically, most of the drill pipes are connected by simple threads, because the complicated connection methods are not suitable for the needs of actual production operations and are not practical. However, the way of threaded connection often causes corrosion due to corrosion and other conditions, resulting in poor torsional performance, which in turn makes the drill pipe unable to be used normally. Contents of the invention [0004] The invention provides a geological drill pipe, which is characterized by si...

AI Technical Summary

Problems solved by technology

[0003] Basically, most of the drill pipes are connected by simple threads, because the complicated connection methods are not suitable for the needs of actual production operations and are not practical.

However, the threaded connection method often causes corrosion due to corrosion and other conditions, resulting in poor torsion resistance, which in turn leads to the failure of the drill pipe to be used normally.

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