Mining portable vibration signal acquisition recording system

Abstract

The invention relates to a mining portable vibration signal acquisition recording system which comprises a vibration sensor and a mainframe which are sequentially serially connected. The mainframe comprises a motherboard, a data acquisition card, a storage, a signal conditioning board, a keyboard, a display screen, a battery pack and an insulating shell. The vibration sensor is connected with the mainframe through a signal acquisition interface and contacted with to-be-measured equipment through a magnetic absorbing seat. The sensor transmits a measured vibration signal to the signal conditioning board through a mining signal cable, the signal conditioning board converts the vibration signal into a vibration acceleration signal, a speed signal and a displacement signal, the data acquisition signal acquires the three signals, the binary data acquired by the acquisition card is stored on a CF (compact flash) storage card through motherboard control, and data wave of the acquired data is displayed on the display screen. The internal circuit of the system completely accords to technical specifications and requirements in mining safety production, data sampling precision is high, and functions of explosion resistance, dust resistance and water resistance are achieved.

Description

technical field [0001] The invention relates to an instrument for collecting and recording vibration signals of coal mine equipment, in particular to a portable vibration signal collection and recording system which can be used in coal mines. Background technique [0002] Coal mines include six major systems: coal mining system, tunneling system, electromechanical system, transportation system, ventilation system, and drainage system. In recent years, the degree of automation and intelligence of coal mine production equipment is getting higher and higher, and the degree of cooperation between various systems in the coal production process is also getting higher and higher. Therefore, any equipment failure in any system will seriously affect coal production in coal mines. Therefore, Strengthening the inspection of the status data of the six major systems plays a vital role in achieving high-yield, high-efficiency, and high-reliability production in coal mines. [0003] For c...

AI Technical Summary

Problems solved by technology

However, due to the harsh production environment of coal mines, it has strict requirements on the voltage and current of electronic equipment, and many current portable vibration signal acquisition and recording instruments cannot meet the requirements of dustproof, moisture-proof, and explosion-proof, resulting in many portable vibration signal acquisition and recording equipment. Applied to coal mine production process

Some existing mining simple vibration signal acquisition and recording systems have single functions and cannot meet the requirements of vibration analysis technology, which limits the application of vibration technology in coal mines. Therefore, vibration signal acquisition and recording systems and their application cases in coal mines are rare. There are reports

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