Drilling electric shock alarm system for trenchless drilling machine

Abstract

The invention relates to a drilling electric shock alarm system for a trenchless drilling machine. The drilling electric shock alarm system comprises an electromagnetic induction coil, a signal processing controller and an alarm device. The electromagnetic induction coil adopts a full-closed packaged manner and is arranged at the position of a front transparent cover of a power head of the trenchless drilling machine or at the drill rod protection short circuit position or the position close to a clamp; the electromagnetic induction coil is used for generating an induction electromotive force signal after a drill bit suffers from an electric shock; the signal processing controller is a micro processing system and is used for amplifying an acquired induction signal, transmitting the signal to a comparison circuit, outputting a corresponding digital signal by the comparison circuit and controlling the on-off of an alarm switch; and the alarm device adopts an acousto-optic integrated rotary alarm lamp and is used for producing alarm sound and rotationally flickering to emit light. The drilling electric shock alarm system can be used for detecting the electric shock condition of the drill bit in real time and immediately giving an alarm in the drilling process so as to prompt an operator to adopt measures to avoid an accident; the alarm system has a simple structure, is low in cost, has high response accuracy and a high speed and is convenient to install and debug; the safety of production is improved; and the drilling electric shock alarm system is suitable to use when various trenchless drilling machines drill.

Description

technical field [0001] The invention relates to a non-excavation drilling rig drilling electric shock alarm system, which is an alarm system for judging whether the drill pipe of the non-excavation drilling rig gets an electric shock by collecting and comparing induced electromotive force signals. Background technique [0002] With the rapid development of my country's national economy and the government's increasing emphasis on the environment, the use of trenchless technology for pipe laying has attracted more and more attention. In the horizontal directional drilling construction, accurately grasping the distribution of the original underground pipelines is the prerequisite for safe construction. However, due to the current lack of accuracy and completeness of the underground pipeline data in domestic cities, the existing live underground pipelines are likely to be damaged during construction. , It is very easy to cause equipment damage and electric shock accidents. In or...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of project loss and personnel injury caused when the drill pipe (drill bit) touches the live pipeline during the drilling process of the non-excavation drilling rig, and to provide an electric shock alarm system for the non-excavation drilling rig

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