Method for pretightening and installing microseismic sensor of underground coal mine anchor rod

Abstract

The invention belongs to the technical field of coal mine safety monitoring, and discloses a method for pretightening and installing a microseismic sensor of an underground coal mine anchor rod. A linkage relationship between an assembly of a used device and the device is that an explosion-proof shell is of an external steel bearing structure that is hollow in the middle and is provided with a hole in the bottom end, and a transmission gear is loaded on the inner wall of the explosion-proof shell; an energy supply accessory located in the explosion-proof shell drives the explosion-proof shellto be in gear meshing transmission with the threaded outer wall of an inner rotary cavity body, the inner rotary cavity body can rotate by means of transmission power and a sliding rail at the bottomof the shell, and materials in a cavity are uniformly stirred through the rough inner wall to prevent solidification; and the upper part of the explosion-proof shell is provided with a fastening clamp, and a high-strength base spring can be completely fastened with the end part of the mine anchor rod. According to the method, the dependence of sensor installation on manpower is removed, the bolt installation accuracy, the anchoring strength and the working efficiency of the sensor are improved, the stability of the whole structure is enhanced, and the signal reception requirement of a microseismic system can be met.

Description

technical field [0001] The invention relates to a device for installing a signal sensor of a microseismic system in a coal mine, which realizes the efficient and fast installation of the sensor in the coal mine and promotes the recovery and reuse of the sensor, and in particular relates to a method for installing the microseismic sensor by pre-tightening the anchor rod in the coal mine . Background technique [0002] Due to the frequent occurrence of coal mine rock burst accidents and water inrush accidents, according to the requirements of the National Energy Administration and the Safety Supervision Bureau, a microseismic system must be installed in the rock burst mine to monitor the stress and damage of the surrounding rock of the mine; and in coal mines In the Water Control Regulations, the microseismic system will also be set as a key technical means for water control. However, the cost of microseismic sensors is relatively high, with an average of 15,000 yuan per sens...

AI Technical Summary

Problems solved by technology

However, this method poses a challenge to the installation equipment. At present, the anchoring agent and the sensor bolt are anchored together by manual means, but this method has extremely low success rate, low efficiency, large labor, waste of materials, and lack of effective installation. method

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