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Mining visual fiber bragg grating wide-range anchor rod cable stress monitoring sensor

A fiber grating and stress monitoring technology, which is used in the measurement of force, the measurement of force by measuring the change of optical properties of materials when they are stressed, instruments, etc. , system instability and other problems, to reduce the labor intensity of personnel, reduce the need to go down to view data, and reduce labor intensity.

Active Publication Date: 2020-11-13
山东光安智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most mine pressure detection devices on the market are electronic products, and the transmission methods are mostly wireless and bus. The detection devices are easily interfered by large coal mining equipment, the data transmission stability is poor, and the transmission distance is short. When detecting large areas, sensors and substations The on-site power supply is complicated, especially in the humid underground environment, and electronic products are easily affected by moisture, resulting in system instability; the existing fiber grating sensors have complicated on-site recovery and repeated installation processes, and do not have the on-site display function required by coal safety

Method used

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  • Mining visual fiber bragg grating wide-range anchor rod cable stress monitoring sensor
  • Mining visual fiber bragg grating wide-range anchor rod cable stress monitoring sensor
  • Mining visual fiber bragg grating wide-range anchor rod cable stress monitoring sensor

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Embodiment 1

[0052] see Figure 1-Figure 4 , Figure 1-Figure 4 It is a structural schematic diagram of a mine-used visual fiber grating large-range bolt cable stress monitoring sensor in this embodiment, which specifically includes a bolt cable stress sensing device, a primary transmission system 1, a secondary transmission system 2, a display device and a remote monitoring system.

[0053] The anchor cable stress sensing device is used to sense the pressure transmitted by the anchor rod, and specifically includes the first housing 5, the first piston shaft 10 and the upper cover 9, and the inner cavity of the first housing 5 is filled with lubricating oil , the top of the first housing 5 is provided with an upper cover 9, the first piston shaft 10 is assembled in the cavity of the first housing 5, the first housing 5, the first piston shaft 10 and the upper cover 9 An anchor rod 3 is worn at the middle position, and an anchor nut 4 is provided at the contact position between the anchor...

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Abstract

The invention discloses a mining visual fiber bragg grating wide-range anchor rod cable stress monitoring sensor. The sensor comprises an anchor rod cable stress sensing device, a first-stage transmission system, a second-stage transmission system, a display device and a remote monitoring system, the anchor rod cable stress sensing device receives stress transmitted by an anchor rod cable, and thestress is transmitted into the display device through the first-stage transmission system and the second-stage transmission system; the display device comprises an instrument panel and a second shell; a push rod and a transmission part are arranged in the second shell; the push rod is connected with the second-stage transmission system; one end of the transmission part is connected with the pushrod, the other end is connected with the instrument panel through a connecting shaft; the remote monitoring system comprises a host and a cantilever beam, a fiber bragg grating is arranged on the cantilever beam, the top of the cantilever beam makes contact with a push rod, the displacement change of the push rod can drive the top of the cantilever beam to be bent, and the fiber bragg grating is connected with the remote host. The sensor is convenient to install on site, visible on site, passive in monitoring, high in measuring precision and large in measuring range.

Description

technical field [0001] The invention relates to the technical field of coal mine safety monitoring, in particular to a mine-used visualized optical fiber grating large-range bolt cable stress monitoring sensor. Background technique [0002] At present, most of the mine pressure detection devices on the market are electronic products, and the transmission methods are mostly wireless and bus. The detection devices are easily interfered by large coal mining equipment, the data transmission stability is poor, and the transmission distance is short. When detecting large areas, sensors and substations The on-site power supply is complicated, especially in the humid underground environment, and electronic products are easily affected by moisture, resulting in system instability; the existing fiber grating sensors have complicated on-site recycling and repeated installation processes, and do not have the on-site display function required by coal safety. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/24G01M13/00
CPCG01L1/246
Inventor 宋成祥张航潘心栋孟凡龙蒋绪军
Owner 山东光安智能科技有限公司
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