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Screw loosening monitoring device and system

A technology for monitoring devices and monitoring systems, applied in measuring devices, radio wave measuring systems, geophysical measurements, etc., can solve the problems of not adapting to curved surfaces and inaccurate judgments, and achieve high monitoring accuracy, improved work efficiency, and simple structure Effect

Inactive Publication Date: 2016-10-26
杨志强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the piezoelectric sensor material used is brittle and not suitable for curved surfaces. Its measurement is more accurate within the range of 250mm of bolt looseness, and the damage judgment outside this range is inaccurate.

Method used

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  • Screw loosening monitoring device and system
  • Screw loosening monitoring device and system
  • Screw loosening monitoring device and system

Examples

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Embodiment Construction

[0030] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

[0031] Such as figure 1 As shown, the present invention provides a screw loosening monitoring device, including an LC sensor 1, a signal processing chip, a control chip and a wireless communication module electrically connected in sequence, and the LC sensor 1 is a coil; in this embodiment, The LC sensor 1 is integrated on a non-metallic plate 5. The thickness of the LC sensor 1 can be tens of microns. According to the specific needs of the project, the coil can be made into various shapes, and can be manufactured flexibly, such as Figure 5 As shown, the coil can be directly embedded into the non-metallic plate 5, or as Image 6 As shown, each coil is separately arranged as a sensor on the non-metal plate 5, and the embedded sensors can be increased or decreased according to actual needs, and as Image 6 In the arrangement of coils, the inductance ca...

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PUM

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Abstract

The invention discloses a screw loosening monitoring device and system. The device comprises an LC sensor, a signal processing chip, a control chip and a wireless communication module which are electrically connected in sequence. The LC sensor is a coil. The LC sensor is used for measuring an inductance signal between the LC sensor and detected metal. The signal processing chip is used for converting the received inductance signal into a position signal. The control chip converts the received position signal into distance data. The wireless communication module is used for transmitting the received distance data to a background computer. Compared with an existing screw loosening monitoring device in the market, the device provided by the invention is simple in structure, convenient to install, low in cost, high in monitoring precision and wide in utilization range; in addition, regular inspection by maintenance personnel is not needed, online detection is practically realized, the manpower is substantially saved, the working efficiency of bolt monitoring is improved, and the working efficiency of the equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical fastener detection, and in particular relates to a screw loosening monitoring device and system. Background technique [0002] As a general connection method, bolt connection is widely used in various engineering fields. Due to the influence of external shock, vibration and high temperature, bolted joints may slip, separate or even fall off, which will affect the safety and performance of the structure, and even lead to structural failure and catastrophic consequences. Especially for those bolts working in harsh environments, the tightness and fatigue damage are often difficult to directly judge, or the tightness is often ignored. In order to avoid the consequences of accidents caused by bolt loosening and failure, on-line condition monitoring of bolts in some important structures can reduce the incidence of accidents and prevent major accidents. [0003] In the prior art, the on-line monitor...

Claims

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Application Information

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IPC IPC(8): G01V3/11
CPCG01V3/101
Inventor 汪俊聂闯杨志强
Owner 杨志强
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