A Multipoint Displacement Meter for Automatically Measuring Spatial Displacement

Abstract

The invention provides a multi-point displacement meter for automatically measuring spatial displacement, including an explosion-proof online monitoring terminal, an explosion-proof bluetooth transmitter, a spatial displacement sensor, a wire, a drill pipe, a fixed pawl, and an end drill pipe. Adjust the length of each drill pipe according to the required measurement of rock layer separation, offset position and drilling depth, and then insert all the drill pipe parts into the drill hole, and the reference plate is close to the surrounding rock. When each rock layer is separated or offset, the rotating ball in the spatial displacement sensor rotates and the displacement telescopic rod extends. After that, the spatial displacement sensor will transmit the signal to the explosion-proof online monitoring terminal to process and store the data. When collecting data, the data is transmitted to the collector through the explosion-proof bluetooth transmitter. The invention combines the spatial displacement sensor, the drill pipe, the explosion-proof online monitoring terminal and the bluetooth device, and can accurately and scientifically study the movement law of the surrounding rock of the roadway in space, with real measurement and convenient installation.

Description

technical field [0001] The invention relates to the technical field of multi-point displacement meters, in particular to a multi-point displacement meter for automatically measuring spatial displacement. Background technique [0002] Most of the multi-point displacement meters currently used in coal mines are based on measuring the length of steel wire ropes. By calculating the length difference between two wire ropes, the separation of each rock layer inside the surrounding rock can be estimated. This multi-point displacement meter is a It is a relatively primitive test tool, which can only roughly measure the separation of the surrounding rock, and provides data support for the study of the displacement law of the deep surrounding rock. [0003] However, during the installation process of this multi-point displacement meter, the wire rope is prone to a series of problems such as winding, bending and breaking, and the obtained result has a large error, and the result is onl...

AI Technical Summary

Problems solved by technology

[0002] Most of the multi-point displacement gauges currently used in coal mines are based on measuring the length of steel wire ropes. By calculating the length difference between two steel wire ropes, the separation of each rock layer inside the surrounding rock is estimated. This kind of multi-point displacement gauge is A relatively primitive test tool, which can only roughly measure the layer separation of surrounding rocks, and provide data support for the study of deep surrounding rock displacement laws

[0003] However, during the installation process of this multi-point displacement meter, the wire rope is prone to a series of problems such as winding, bending, and breaking, and the result obtained has a large error, and the result is only the change in the length of the wire rope after the spatial displacement of the rock formation. However, it cannot objectively and truly reflect the real situation of the spatial displacement of the rock formation; at the same time, when installing each pole of the multi-point displacement meter, it is necessary to send it to the interior of the surrounding rock with the help of a drill pipe, which is time-consuming and labor-intensive, and delays other production. The continuation of work has seriously affected the normal progress of scientific research work

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