Device and method for diagnosing bolt looseness of power transmission tower pole material connection node

A technology for loosening bolts and connecting nodes. It is used in electromagnetic measuring devices, measuring devices, and electromagnetic/magnetic solid deformation measurement. It can solve problems such as time-consuming and laborious manual detection, large number of node bolts, and bolt loosening failure.
CN111122140AActive Publication Date: 2020-05-08STATE GRID HUBEI ELECTRIC POWER RES INST +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID HUBEI ELECTRIC POWER RES INST
Publication Date
2020-05-08

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Abstract

The invention discloses a device and a method for diagnosing bolt looseness of a power transmission tower pole material connection node. The device for diagnosing bolt looseness of a power transmission tower pole material connection node comprises a strain data acquisition device, a wireless sensor network system, a bolt looseness diagnosis module and a diagnosis result display terminal. At leasttwo strain data acquisition devices are installed near node bolts of a rod material connection node of a power transmission tower, and are used for acquiring real-time strain response data at the rodmaterial connection node, transmitting the real-time strain response data to the bolt looseness diagnosis module through the wireless sensor network system, judging the bolt looseness failure condition through the bolt looseness diagnosis module, and finally a node bolt looseness failure diagnosis result is displayed through the diagnosis result display terminal. According to the invention, intelligent diagnosis of bolt loosening failure is realized, manual detection consuming a lot of manpower and material resources is avoided, and the problems of node bolt detection and operation maintenanceare effectively solved.
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Description

technical field

[0001] The invention belongs to the technical field of transmission tower structure engineering, and in particular relates to an intelligent diagnosis device and method for bolt loosening of connection nodes of transmission tower rods based on wireless piezoelectric strain monitoring. Background technique

[0002] In engineering structures, bolts often play the role of connecting rods. Because of their advantages such as simple construction and easy maintenance, they are widely used in transmission tower structures. The reliability of the bolted connection is closely related to the operation safety of the transmission line, so the working performance of the bolts connected by the rod is very important for the safe operation of the transmission tower structure.

[0003] Under the action of wind load, ice and snow load or earthquake load, etc., the wires of the transmission line will vibrate or even dance, making the structure of the transmission tower bear var...

Claims

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