Vibration Screen Fault Detection Using Screen Body and Exciter Signals
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Solution Overview
Problem
Current fault monitoring systems for vibration screens are not well-developed, leading to delayed and inaccurate detection of failures, which results in inefficient maintenance and increased production interruptions.
Innovation Solution
A vibration screen condition monitoring method and system that utilizes sensors on the screen body and exciter to collect data, analyze acceleration and trajectory parameters, and compare them against thresholds to detect abnormalities, including preprocessing to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual fault detection is used, then device complexity is reduced, but reliability and response speed deteriorate
Solution Approach 1:
The vibration screen performs self-diagnosis by equipping itself with sensors and monitoring systems that automatically detect faults without requiring external manual inspection. The system monitors its own vibration characteristics and triggers alerts when abnormalities are detected, enabling autonomous fault detection and reducing dependence on manual checks.
Solution Approach 2:
The patent replaces manual mechanical inspection with automated electronic sensing and data processing systems. Acceleration sensors, vibration sensors, and control units work together to automatically detect and analyze vibration characteristics, substituting the manual detection process with an automated electronic system that provides continuous monitoring.
2Device complexity
If manual fault detection is used, then device complexity is reduced, but response speed deteriorates
Solution Approach 1:
The monitoring system operates continuously without interruption, providing ongoing vibration analysis and fault detection. The system maintains continuous data collection and real-time analysis, ensuring that faults are detected immediately when they occur rather than being discovered only during periodic manual inspections.
Solution Approach 2:
The patent replaces slow manual inspection with rapid automated electronic detection systems that continuously monitor vibration characteristics and immediately respond to abnormalities. The electronic sensing and processing system provides real-time fault detection, dramatically reducing the response time compared to manual methods.
3Measurement precision
If comprehensive vibration monitoring is implemented, then measurement precision improves, but device complexity increases
Solution Approach 1:
The monitoring system is divided into separate functional modules: acceleration sensors, vibration sensors, control units, and alert systems. Each component performs a specific function and can be independently configured or replaced. The system segments the vibration monitoring task into multiple measurable parameters (acceleration, velocity, displacement) to achieve comprehensive precision without requiring a single overly complex system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the accuracy and speed of fault detection, reducing maintenance costs and production interruptions by providing timely identification of vibration screen faults.
Implementation Method 1
obtaining first acceleration data from a screen body sensor, the first acceleration data reflecting the acceleration of the screen body
Implementation Method 2
obtaining exciter vibration data; determining whether the exciter vibration is abnormal base on said exciter vibration data
Data Source
AI summary
The present disclosure relates to a method of monitoring a condition of a vibration screen and a vibration screen condition monitoring system. The vibration screen condition monitoring method includes obtaining screen body vibration data; determining whether the screen body vibration is abnormal based on the screen body vibration data; determining whether the exciter vibration is abnormal base on the exciter vibration data; and determining that the vibration screen has a fault when either the screen body vibration or the exciter vibration is abnormal.