Method and device for rapidly detecting loosening of bolt of iron tower

Abstract

The invention relates to the field of iron tower assembly quality detection, in particular to a method and a device for rapidly detecting the loosening of a bolt of an iron tower. An additional vibration source vibrates the iron tower, a loosened bolt and a tower part are excited to resonate or vibrate to produce secondary impact sounds, and sound waves are received and converted into electrical signals through a vibration frequency receiving device. Two methods are used for analyzing the electrical signals, wherein one method comprises the steps of displaying sound waveforms and performing waveform analysis by observing the waveforms, and the other method comprises the steps of performing counting and analyzing a count value, so that whether a certain bolt on the iron tower is loosened or not can be rapidly judged. Compared with the prior art, the method and the device have the beneficial effects that a sound wave detection technology is adopted for rapid detection after the assembly of the iron tower; the method and the device have the advantages of high detection speed, capability of greatly saving manpower and material resources and no requirements on tower climbing for detection; sound wave data can be analyzed to directly reflect whether the bolt of the iron tower is loosened or not by once comprehensive detection, so that requirements on the detection efficiency and accuracy of the iron tower are met.

Description

technical field [0001] The invention relates to the field of iron tower assembly quality inspection, in particular to a fast detection method and device for iron tower bolt looseness. Background technique [0002] The assembly of iron towers is generally connected by bolts. The quality of the bolts is very important. Due to the large number of bolts, the inspection is labor-intensive and time-consuming. In the past, when inspecting whether the assembly of iron towers was qualified, supervisors had to climb up the iron towers and inspect each piece of angle iron one by one. And whether each bolt meets the requirements, such an inspection workload is heavy, it is easy to miss inspection, and it is difficult to guarantee the inspection quality. Contents of the invention [0003] The purpose of the present invention is to provide a fast detection method and device for iron tower bolt looseness, which uses sound wave detection technology to perform rapid detection after the iro...

AI Technical Summary

Problems solved by technology

[0002] The assembly of iron towers is generally connected by bolts. The quality of the bolts is very important. Due to the large number of bolts, the inspection is labor-intensive and time-consuming. In the past, when inspecting whether the assembly of iron towers was qualified, supervisors had to climb up the iron towers and inspect each piece of angle iron one by one. and whether each bolt meets the requirements, such an inspection workload is heavy, it is easy to miss inspection, and it is difficult to guarantee the inspection quality

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