A Novel Bolt Pullout Resistance Alarm Instrument and Its Application Method

Abstract

The invention discloses a novel anchor rod pulling resistance alarm. The novel anchor rod pulling resistance alarm comprises a pressure sensor box, a sensor rod, a light-emitting diode and a sounder, wherein the pressure sensor box sends out a signal, the signal is transmitted to the light-emitting diode and the sounder through the sensor rod, the pressure sensor box is annular and is provided with a central hole whose size is 18-22 mm, the sounder and the light-emitting diode are provided with a sealing waterproof device, and a button cell is arranged inside the pressure sensor box and is used for supplying power to the sounder and the light-emitting diode. The novel anchor rod pulling resistance alarm monitors the pulling resistance of an anchor rod in real time and gives an alarm before danger, thereby guiding people to take related maintenance measures in advance, preventing the anchor rod from being pulled broken and avoiding roof collapse accidents.

Description

technical field [0001] The invention relates to a novel bolt pullout resistance alarm instrument and a using method thereof. Background technique [0002] Anchor bolts are the most basic component of roadway support in contemporary coal mines, and are also widely used in slopes, tunnels, and dams. The pullout resistance of the anchor is an important parameter to test the anchoring force. Especially in the roadway roof support, if the pressure is too high in the pressure concentration area, there will often be problems such as large roof sinking, bolt breakage, and even local roof fall, which brings great difficulties to the safety management of coal mines. The pull-out force of the anchor directly reflects the pressure condition of the roof, [0003] At present, there are two types of instruments for monitoring the pullout force of anchor bolts. One is a mechanical pressure detector, which uses a digital display pressure gauge to read data manually. This kind of mechanical...

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Problems solved by technology

[0003] At present, there are two types of instruments for monitoring the pullout force of anchor bolts. One is a mechanical pressure detector, which uses a digital display pressure gauge to read data manually. This kind of mechanical pressure detector has low precision and requires manual reading of the instrument. The pressure value has human error and poor intuition; the other is an intelligent detector, which uses a special mathematical model to write a program in advance, and then uses the panel to collect data and then connects to the computer to upload the data, and finally analyzes and uses it without pressure. Table, but the operation is complicated, professional personnel are required to complete the operation, and the data cannot be displayed in real time

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