Large rotating machinery torsional vibration measuring device

CN224435759UActive Publication Date: 2026-06-30BEIJING ZHONGKE FEICHI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGKE FEICHI TECHNOLOGY CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing portable torsional vibration measuring instruments are unstable to install on large rotating machinery, are prone to falling off, and have insufficient reliability in wireless signal transmission, especially in environments with strong electromagnetic interference where measurements are interrupted.

Method used

A torsional vibration measuring device comprising a main body unit and a measuring unit was designed. The main body unit and the measuring unit are connected by a cable. Stable bonding of strain gauges is achieved through positioning and bonding components. Ball bearings are used to contact the rotating mechanical shaft to ensure the stability of the device and the reliability of data transmission during high-speed rotation.

Benefits of technology

It achieves stable adhesion between the strain gauge and the mechanical surface, ensuring the stability and reliability of data transmission. At the same time, the device is detachable for easy storage and is suitable for mechanical shafts of different sizes, improving the stability and versatility of the device.

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Abstract

This utility model relates to the field of torsional vibration measurement technology and discloses a torsional vibration measuring device for large rotating machinery. It includes a main unit and a measuring unit. The main unit includes a handheld rod and a mounting base fixedly connected to one end of the handheld rod. A cable is provided on one side of the handheld rod, and one end of the cable is connected to a measuring instrument. The measuring unit includes a bonding component and a connecting seat fixedly mounted on the bonding component. One end of the connecting seat is connected to one end of the cable. A positioning component is connected to the bonding component and slides within the mounting base. The bonding component includes a moving rod and a strain gauge connected to one end of the moving rod. A pressing head is fixedly connected to the other end of the moving rod, and a return spring is provided inside the pressing head. This invention solves the problems of existing measuring devices being prone to detachment due to various factors during installation, resulting in poor installation stability and insufficient reliability of wireless signal transmission.
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