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Heavy scraper conveyor overload online monitoring device and online monitoring method

A technology of scraper conveyor and monitoring device, which is applied in the direction of conveyor control device, conveyor, conveyor objects, etc., and can solve the problems of feedback lag, low efficiency, waste of human resources, etc.

Active Publication Date: 2018-04-06
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this manual monitoring method for the overload of heavy-duty scraper conveyors has shortcomings such as low efficiency, feedback lag, and waste of human resources. An Effective On-Line Monitoring Means for Overload of Heavy-duty Scraper Conveyor

Method used

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  • Heavy scraper conveyor overload online monitoring device and online monitoring method

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings.

[0043] Such as figure 1 As shown, a heavy-duty scraper conveyor overload on-line monitoring device includes a broadband light source 1, an optical fiber coupler 2, an optical fiber circulator, a photodetector, an optical fiber online polarizer, a polarization combiner / beam splitter and a sensing probe;

[0044] The broadband light source 1 is connected to the port 202-0 of the fiber coupler 2; the port 212-1 of the fiber coupler 2 is connected to the port 311311 of the first fiber optic circulator 3-1 , port two two 2-2 are connected with port three two one 321 of the second optical fiber circulator 3-2, port two three 2-3 are connected with port three three one 331 of the third optical fiber circulator 3-3, port two four 2-4 is connected with port 341 341 of the fourth optical fiber circulator 3-4, port 25 2-5 is connected with port 351 351 of the fifth optical fiber...

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Abstract

The invention discloses a heavy scraper conveyor overload online monitoring device and an online monitoring method. Light emitted by a broadband light source passes through an optical fiber coupler and is then uniformly divided to six beams; the six beams of light pass through a corresponding optical fiber circulator and an optical fiber online polarizer; each two beams of light is combined through a corresponding polarization beam combiner / splitter, then enters a sensing probe through which a corresponding phase wire passes, is then reflected by a reflecting film at the tail end of the sensing probe, is then split through the corresponding polarization beam combiner / splitter, then passes through the corresponding optical fiber online polarizer and the optical fiber circulator sequentially, and enters corresponding photodetectors. Quadrature signal demodulation is carried out on two photodetectors which monitor in-phase current, monitoring on each phase current is realized, and whetheroverload happens to the heavy scraper conveyor is monitored in an online mode. The anti-interference ability is strong, the measurement sensitivity is high, and the measurement precision and the efficiency are high.

Description

technical field [0001] The invention relates to an on-line monitoring device and an on-line monitoring method, in particular to an on-line monitoring device and an on-line monitoring method for overload of a heavy-duty scraper conveyor, belonging to the technical field of health status monitoring of fully mechanized mining equipment in underground coal mines. Background technique [0002] my country is rich in coal resources, and coal is also the main energy consumption and raw material in our country, and will always occupy the position of the main energy source at present and in the future. With the advancement of coal mining technology and the rapid development of fully-mechanized mining face with large mining height in mines with an annual output of 10 million tons, in order to effectively improve coal mining efficiency, mining output and mining safety, all large and extra large mines will One side or two sides of a well, ultra-long working face, long direction, and larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/30B65G43/02
CPCB65G43/02B65G2203/04G01D5/30
Inventor 许少毅李威邢方方王禹桥杨雪锋范孟豹王瑞林王祥辉路恩鞠锦勇盛连超
Owner CHINA UNIV OF MINING & TECH
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