Detection method of chain status of scraper conveyor in fully mechanized mining face

A technology for scraper conveyors and fully mechanized mining working faces, which is applied in the direction of conveyors, conveyor objects, conveyor control devices, etc., and can solve the problems that magnetic particle detection cannot realize online detection, cannot meet the needs of production, and the equipment is expensive. , to achieve the effect of light weight, avoiding potential safety hazards, and low price

Active Publication Date: 2020-08-28
CHINA UNIV OF MINING & TECH
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  • Claims
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Problems solved by technology

However, magnetic particle testing cannot realize online testing, and it is inconvenient to use. The equipment used in acoustic emission and ultrasonic testing methods is expensive, and cannot meet the needs of the current fully mechanized mining face production

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  • Detection method of chain status of scraper conveyor in fully mechanized mining face
  • Detection method of chain status of scraper conveyor in fully mechanized mining face

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Embodiment Construction

[0030] The specific embodiments of the present invention will be briefly described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those skilled in the art without creative work Examples, all belong to the protection scope of the present invention.

[0031] Figure 1-Figure 2 The preferred embodiment of the present invention is shown, and it is analyzed in detail from different angles.

[0032] Such as Figure 1-2 As shown, a method for detecting the chain state of a scraper conveyor in a fully mechanized mining face. The detection device used includes a magnetic field generator installed under the chain 8 to magnetize the chain 8 and a magnetic field detection device installed next to the scraper conveyor. The magnetic field generating device includes an adjustable DC ...

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Abstract

Disclosed are a fully mechanized mining face scraper conveyer chain state detection device and method. The detection device comprises a magnetic field generation device and a magnetic field detection device, wherein the magnetic field generation device comprises an adjustable direct-current source (1) and a multi-ring coil (2), the magnetic field detection device comprises a detection probe (3), a polarizer (4), an optical fiber circulator (5), a broadband light source (6), and a photoelectric detector (7), the detection probe (3) comprises a reflection mirror (31), a magnetic induction loop (32), and a magneto-optic crystal (33), and the detection probe (3) is close to a chain (8) by means of adjusting a support to achieve online detection. With the detection device and method, online detection of the chain (8) can be achieved, safe and stable running of a scraper conveyer is ensured, and the potential safety hazards of coalmine production are avoided.

Description

technical field [0001] The invention relates to the technical field of chain detection, in particular to a chain state detection method of a scraper conveyor in a fully mechanized mining face. Background technique [0002] With the continuous improvement of the requirements for the safe and stable operation of coal mine machinery, as the key mechanical equipment on the fully mechanized mining face, the stable operation of the scraper conveyor directly affects the safety and continuity of coal mine production. Since the chain bears the greatest load, more failures in the scraper conveyor occur on the chain. It is necessary to adopt an effective means to realize online detection of the chain. [0003] The working conditions of the scraper conveyor are complicated, and the chain works under high load for a long time, which is prone to failure forms such as wear, cracking, corrosion, and plastic deformation. If the major defects and hidden dangers of the chain can be found in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G19/20B65G43/02
CPCB65G19/20B65G43/02
Inventor 许少毅薛宏宇江红祥李威王禹桥范孟豹杨雪锋陈瑶
Owner CHINA UNIV OF MINING & TECH
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