Device for monitoring looseness of bolt

Abstract

The invention relates to the field of bolt looseness monitoring, in particular to a device for monitoring the looseness of a bolt. The device comprises an inverted outer cylinder and an inverted innercylinder. The inner cylinder is disposed in the outer cylinder. The top center of the outer cylinder and the top center of the inner cylinder are provided with rotation angle sensors. The outer cylinder is disposed on the connection end of a bolt to be monitored. A first screw and the connecting end of a nut are disposed in the outer cylinder. The bottom of the outer cylinder is attached and fixed to the upper portion of a connecting member. The inner cylinder is attached and fixed to the upper portion of the nut. A shaft lever is vertically disposed on the top of the first screw. The upper end of the shaft lever is fixed to the outer cylinder. The rotation angle sensors are connected to an analog input acquisition module. The analog input acquisition module is connected to a computer. The device for monitoring the looseness of a bolt is simple in structure, stable in performance, high in reliability, and convenient to install, and can monitor the of the bolt in real time, and achieves an expected bolt looseness monitoring effect.

Description

technical field [0001] The invention relates to the field of bolt loosening monitoring, in particular to a device for monitoring bolt loosening. Background technique [0002] Bolt connection is a connection method with simple structure, convenient assembly and disassembly, and low cost, which is widely used in equipment and structures. There are various forms of bolt failure. The most common failure form is bolt looseness. Bolts will loosen to varying degrees under the impact of cyclic loads and forced vibration. The loosening of bolts will lead to devastating consequences and major property losses. . Especially for those bolts working in harsh environments, the tightness and fatigue damage are often difficult to directly judge, or the tightness is often ignored. In order to avoid the catastrophic consequences of those bolts with poor health, it is particularly important to monitor the bolt health status online in real time. For this reason, we propose a device for real-t...

AI Technical Summary

Problems solved by technology

There are various forms of bolt failure. The most common failure form is bolt looseness. Bolts will loosen to varying degrees under the impact of cyclic loads and forced vibration. The loosening of bolts will lead to devastating consequences and major property losses.

Especially for those bolts working in harsh environments, the tightness and fatigue damage are often difficult to judge directly, or the tightness is often ignored

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