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Bolt fastening and real-time detection system and method

A technology for real-time detection of bolts, applied to measure torque/torsion force, screwdrivers, measuring devices, etc. during tightening, can solve problems such as loose bolt connections, no detection methods, corrosion, etc., to achieve guaranteed accuracy, clear data without confusion, and reduce workload effect

Pending Publication Date: 2020-08-04
ZHEJIANG INST OF COMM
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Problems solved by technology

However, when the structure is put into use, under the action of external loads (especially dynamic loads) and the natural environment, the bolted connections in the structure will experience relaxation, corrosion, fatigue and aging, which will affect the safety of the structure. At present, there is no Better detection method, not able to monitor the status of bolted connections in real time

Method used

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  • Bolt fastening and real-time detection system and method
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  • Bolt fastening and real-time detection system and method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the drawings.

[0037] Reference Figure 1 ~ Figure 4 , A bolt tightening and real-time detection system, including bolt 1, bolt encoder 2, piezoelectric device 3, data receiving and processing device 4, ultrasonic fixed torque bolt wrench 5, fixing device 6, connecting main board 7, bonding board 8, A power storage device 91, a signal converter 92, and a signal transmitting device 93.

[0038] The bolt encoder 2 is arranged on the upper side of the bolt head through a pasting process, and the bolt code corresponding to each bolt 1 is different. The bolt code can be obtained by scanning the bolt code by a scanning device, and the data is received The processing device 4 is arranged near the node to be constructed and can be fixed on the node plate by bonding or welding. Each data receiving and processing device 4 is connected to one or more nodes; during the bolt tightening process, the ultrasonic fix...

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Abstract

According to the bolt connection real-time detection system, a bolt encoder is arranged on the upper side of a bolt head through a pasting process, and a data receiving and processing device is arranged near a to-be-constructed node; an ultrasonic fixed-torque bolt wrench is in butt joint with a bolt, and the front end of the ultrasonic fixed-torque bolt wrench is close to an attaching plate; a fixing device is used for fixing a nut of the bolt; a connecting main plate is a structural plate, and the attaching plate is a connecting main plate used for connection; screw holes matched with the bolts are formed in the connecting main plate and the attaching plate; an electricity storage device, a signal converter and a signal transmitting device are arranged in the bolt head; and the electricity storage device, the signal converter and the signal transmitting device are connected with a piezoelectric device through wires. According to the bolt connection real-time detection system and method, the pre-tightening force of each bolt is monitored in real time, and the precision is high.

Description

Technical field [0001] The invention relates to an intelligent bolt system, relates to the field of bolts, and relates to the field of detection, in particular to a bolt fastening and real-time detection system and method. Background technique [0002] At present, my country's large-span structures, hyperelevation structures, super-high structures and large-space structures have sprung up on our country's land, and a large number of buildings have become local and even our country's landmark buildings. Most of these buildings use light weight and high-strength steel structures, and the structural nodes are often connected by a large number of bolts. In order to ensure the safety of bolted nodes, it is necessary to accurately control the pre-tightening force of the bolts. Chinese engineers mainly use the torque method and the angle method to control the pre-tightening force of the bolts, and invented a variety of fixed torque wrenches and fixed angle wrenches. There is a certain ...

Claims

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Application Information

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IPC IPC(8): G01L5/24B25B21/00B25B23/147
CPCB25B21/00B25B23/147G01L5/246
Inventor 楼云宣剑裕戴君健倪迪周建强林军林丹丹潘晓君陶小钧杭振园赵伟陈枫陈明盛琪丁正坤
Owner ZHEJIANG INST OF COMM
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