Laser positioning mounting bar for borehole stress meter and mounting method of mounting bar

Abstract

The invention relates to a laser positioning mounting bar for a borehole stress meter and a mounting method of the mounting bar. The mounting bar comprises a bar body formed by coaxially connecting aplurality of sections of rod body units end to end in sequence, and further comprises a laser control device; a laser module, a battery module and a switch control module which are electrically connected with each other are arranged in the laser control device; the laser control device is provided with the laser module with one end connected with a starting end of the rod body, and the switch control module with the other end connected with the stress meter; under the action of the switch control module, laser rays emitted from the laser module have an on-off change and the change is observedat the tail end of the rod body. When the mounting bar is utilized to mount the stress meter, mounting and angle adjustment operations are convenient, the mounting accuracy is high, and the mounting efficiency is greatly increased.

Description

technical field [0001] The technical field to which the present invention relates is the general measurement of force or stress, and further relates to devices for replacing, placing, locking, disengaging or extracting tools, packers or the like in a wellbore or wellbore, and in particular to laser positioning borehole stress gauges Mounting rods and how to install them. Background technique [0002] As a device that can monitor the stress distribution and changes of coal and rock mass, the pressure pillow borehole stress gauge is widely used in coal mines, especially for monitoring the change of coal mass stress around the stope with the influence of mining during the mining process. law. The main structure of the pressure pillow borehole stress gauge is a pressure pillow and inclusions. The upper and lower inclusions transfer the stress of the coal and rock mass around the borehole to the pressure pillow and convert it into the liquid pressure in the pillow. The liquid p...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the technical solution disclosed in the above patents are that the steel wire rope needs to pass through the rod body and be wound on the runner during the connection process of the installation rod. It is difficult to install components such as wheels, wire ropes, etc., and the installation accuracy is low

Moreover, when the adjacent rod units are docked, they must be aligned with the calibration line, and then the direction compass is operated. The adjustment accuracy is greatly affected by human factors, and the installation angle positioning accuracy is low, which is not conducive to high-quality and efficient installation and monitoring work.

In addition, the rod units that make up the rod body are connected by sleeve nuts, the structure is complicated, it is not easy to operate, many components are easy to lose, and the processing cost is high

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