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Bolt pre-tightening force monitoring system

A bolt pre-tightening, monitoring system technology, applied in the signal transmission system, measuring torque/torsion force, force/torque/work measuring instrument and other directions during tightening, to achieve the effect of easy processing, wide application scenarios and low cost

Inactive Publication Date: 2021-05-07
雷恩(杭州)液压科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] How to realize the complete wirelessization of the bolt pretension monitoring system for large-scale projects is a difficult problem that cannot be solved at present

Method used

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  • Bolt pre-tightening force monitoring system
  • Bolt pre-tightening force monitoring system
  • Bolt pre-tightening force monitoring system

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Embodiment Construction

[0062] In order to better understand the contents of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] refer to figure 1 , the bolt pretightening force monitoring system shown in this example is the case where no on-site monitoring center is set up. The system includes an intelligent gasket sensor 1 , a Bluetooth repeater 3 , a remote server 4 and a mobile terminal 5 .

[0064] refer to figure 2 and image 3 , the smart pad sensor 1 of the present invention includes an elastic tube cylinder 11 , a rubber ring 12 , a strain gauge, a flexible circuit board 13 , a power storage module 14 and a solar film 122 . The middle of the elastic tube body 11 is a through hole matched with the bolt, and the rubber ring 12 is sleeved on the elastic tube body 11 . The strain gauges are attached to the outer surface of the elastic tube cylinder along the axial direction, and form ...

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Abstract

The invention belongs to the technical field of fastener monitoring, and discloses a bolt pre-tightening force monitoring system, which comprises a remote monitoring end, a field monitoring center and a plurality of pre-tightening force monitoring groups, and is characterized in that each pre-tightening force monitoring group is composed of a Bluetooth repeater and a plurality of intelligent gasket type sensors; and all the bolts of which the pre-tightening force needs to be monitored in a project are grouped according to a range not exceeding a specified radius, and each group of bolts corresponds to one pre-tightening force monitoring group. The intelligent gasket sensor is communicated with the Bluetooth repeater through the low-power-consumption Bluetooth module, the Bluetooth repeater is communicated with the field monitoring center through the Wifi module, and the field monitoring center is communicated with the remote monitoring end through a wired network or a mobile network. According to the monitoring system, unified monitoring on the bolt pretightening force of the whole large-scale project is successfully realized on the premise that the sensor cannot be provided with an external wire.

Description

technical field [0001] The invention belongs to the technical field of fastener monitoring, and relates to the monitoring technology of bolt pretightening force, in particular to a system for overall and unified pretightening force monitoring of bolts in large-scale projects. Background technique [0002] Bolts are indispensable fasteners in large-scale projects such as bridges, wind power generation, and petrochemical industries. In these large-scale projects, the pre-tightening force (fastening stress) of bolts is seriously related to engineering safety. On-line monitoring of bolt fastening stress is the best choice to ensure the safety and reliability of bolted connections. A bolt preload monitoring system includes at least two basic components, the detection device and the monitoring terminal. The detection device is used to obtain the bolt pretightening force data, and the monitoring terminal is used to monitor and manage the bolt pretightening force data. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/24
CPCG01L5/243G08C17/02F16B43/00
Inventor 章利民
Owner 雷恩(杭州)液压科技有限公司
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