Rolling rock breaking drill bit with working face state and hob operation state monitoring function

Abstract

The invention discloses a rolling rock breaking drill bit with a working face state and a hob operation state monitoring function. The rolling rock breaking drill bit comprises a rolling rock breakingdrill bit body, a temperature sensor, a rotating speed sensor, a gas sensor, a laser range finder and a data acquisition system, wherein the temperature sensor, the rotating speed sensor, the gas sensor, the laser range finder and the data acquisition system are fixedly installed on the rolling rock breaking drill bit body; and the data output end of the temperature sensor, the data output end ofthe rotating speed sensor, the data output end of the gas sensor and the data output end of the laser range finder are connected with the data input end of the data acquisition system, and the data output end of the data acquisition system is connected with the data input end of a ground console. According to the rolling rock breaking drill bit, the temperature sensor, the rotating speed sensor,the gas sensor, the laser range finder and the data acquisition system are reasonably arranged on the rolling rock breaking drill bit body; and the data acquisition system can collect analog data acquired by the temperature sensor, the rotating speed sensor, the gas sensor and the laser range finder, so that the temperature, failure conditions and drilling working face gas concentration of a hob on the rolling rock breaking drill bit body are realized.

Description

technical field [0001] The invention relates to the technical field of drilling equipment. Specifically, it is a rolling rock-breaking drill bit with working face status and hob operating condition monitoring. Background technique [0002] The large-diameter rolling rock-breaking drill bit is the main rock-breaking tool for shaft drilling rigs, raise drilling rigs and full-face shaft boring machines, and its rock-breaking drilling efficiency directly affects the efficiency and cost of shaft construction. At present, the failure of the bottom hole assembly and the special working conditions of the downhole working face (gas outburst, formation subsidence) are mainly judged by the experience of the operator. Therefore, after the failure of the hob, the drilling efficiency is low and the force on the drill bit is unbalanced. The bending moment of the center pipe increases, thus causing the most common fracture of the drill bit center pipe in the raising accident; when encounte...

AI Technical Summary

Problems solved by technology

At present, the failure of the bottom hole assembly and the special working conditions of the downhole working face (gas outburst, formation subsidence) are mainly judged by the experience of the operator. Therefore, after the failure of the hob, the drilling efficiency is low and the force on the drill bit is unbalanced. The bending moment of the center pipe increases, thus causing the most common fracture of the drill bit center pipe in the raising accident; when encountering gas outburst, the sparks generated by the impact of rolling rock breaking can easily cause gas explosions, and formation subsidence will cause gas explosions. drilling accident

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