Geological drill rod coupling

Abstract

The invention discloses a geological drill rod coupling, which structurally comprises a short joint, a connecting sleeve device and a high-entropy alloy layer. The geological drill rod coupling has the beneficial effects that the problem that the drill rod is easy to damage due to poor connection stability between the drill rod coupling and the drill rod is solved. By arranging the connecting sleeve device, the short-circuit body is firstly inserted into the shell, wherein the side plate, the clamping ring and the clamping claw block play a role in fixedly connecting the short-circuit body with the drill rod, and when the drill rod and the drill rod coupling rotate, the steel balls can ensure the stability of the power transmission of the drill rod and the drill rod coupling in rotation and the rigidity of the axial load is high without backlash in the coupled state, and then the butterfly-shaped spring can be automatically converted into additional compression load required for sealing if necessary, so as to reduce the continuous requirement on tightening during the use of the drill rod, and achieve the beneficial effects that the connection stability of the drill rod coupling andthe drill rod is enhanced, and the drill rod is not easy to damage.

Description

technical field [0001] The invention relates to the technical field of mining drilling tools, in particular to geological drill pipe collars. Background technique [0002] The traditional geological drill pipe is an overall structure of ordinary steel. This kind of drill pipe is generally too long, which makes it inconvenient to install during use. After being damaged, it usually needs to be replaced or repaired after it is completely disassembled, which increases the cost and slows down the work efficiency of geological drilling. Rod couplings are used to connect underground geological drill pipes to lengthen the drill pipes to a predetermined length for rock drilling. However, the current drill pipe couplings cannot meet the actual needs in terms of the stability of the connection between the drill pipes and the drill pipes. , and not resistant to wear, resulting in weak connections between drill pipes, short service life, and affecting work progress. With the rapid develo...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing technology, a geological drill pipe collar is proposed to solve the poor connection stability between the drill pipe collar and the drill pipe in the prior art, resulting in easy damage to the drill pipe, poor wear resistance, and short service life The problem is to achieve the beneficial effect of enhancing the connection stability between the drill pipe collar and the drill pipe, making the drill pipe not easy to damage, enhancing the wear resistance of the geological drill pipe collar, and increasing its service life