Loosing detection and early-warning system of large-size screw and screw group

Abstract

The invention discloses a loosing detection and early-warning system of a large-size screw and screw group. The system structure mainly comprises a screw loosing detection module and an early-warningterminal, wherein the screw loosing detection module comprises a power module, a pressure sensing module, a loosing signal acquisition module, a loosing distinguishing and push module and a communication module. The system is used for detecting whether the screw is loosen or not by the screw loosing detection module, a loosing screw position number is pushed to the early-warning terminal. Comparedwith other screw loosing detection methods, the method has the advantages that whether the screw is loosen or not is detected essentially, and the method has the characteristics of high automation, detection accuracy and high efficiency and is free from the influence of factors such as climate, visibility and maintainer experience difference. By the method and the system, a screw fastening stateof large-size equipment is monitored in real time, and the method and the system are of important significance to guarantee of normal and safe running.

Description

technical field [0001] The invention relates to the technical field of mechanical fastener detection, in particular to a large screw loose detection method and system. Background technique [0002] The scientific name of screw is fastener, which is a tool for fastening the parts of the object step by step by using the physical and mathematical principles of the circular rotation and friction of the inclined surface of the object. Screws are known as "industrial rice" because they are widely used in many industries such as electronics, machinery and metallurgy. Among them, large screws and screw groups (such as figure 1 shown) are mainly used for fixing large electromechanical equipment, such as motors, transformers, communication power towers, fan pillars, rail fasteners, etc. This type of fastening screw has a large load-bearing effect, and the installation area is concentrated, which is convenient for centralized monitoring. [0003] Large screws are an important part of...

AI Technical Summary

Problems solved by technology

Since the manual inspection is based on the experience of the inspectors to detect whether large screws are loose or not, it is inevitable that there will be misjudgments. At the same time, this method is also affected by environmental factors such as visibility.

However, detection methods based on images and visual processing can only detect whether large screws have fallen off or are missing, but cannot detect their tightness, and are greatly affected by environmental factors such as visibility and algorithm accuracy.

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