Diagnostic Device for Material Handling Systems
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Solution Overview
Problem
Material handling systems, such as positive displacement shoe and slat sorters, face challenges in precisely determining deviations from specifications, which can lead to cumulative detrimental effects over time due to wear, debris accumulation, or movement of the mounting surface, making it difficult to diagnose and correct issues with minimal downtime.
Innovation Solution
A diagnostic device equipped with force sensors, accelerometers, and wireless transmitters is installed on the conveying system to measure forces and accelerations as it travels along the path, allowing for real-time data collection and comparison to baseline measurements, providing detailed information on system conditions and enabling precise diagnosis and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If distance sensors are used to measure distance to rails, then measurement capability is provided, but only limited information regarding system condition is obtained
Solution Approach 1:
The patent combines multiple sensor types (distance sensors, force sensors, accelerometers) into a single diagnostic device that travels with the material support member. This merging of sensing capabilities provides comprehensive system condition information including drag forces, alignment deviations, and dynamic characteristics that cannot be obtained with distance sensors alone.
Solution Approach 2:
The diagnostic device is designed as a multi-functional instrument that performs multiple measurement functions simultaneously. It measures distance to rails, force of engagement against restraining surfaces, acceleration, and other system parameters, making it a universal diagnostic tool that replaces multiple separate measurement devices.
2Measurement precision
If the conveying system is stopped for manual inspection, then detailed examination can be performed, but system downtime increases
Solution Approach 1:
The system performs self-diagnosis by incorporating sensors that automatically measure and evaluate system conditions during normal operation. The diagnostic device monitors drag forces, alignment, and other parameters without requiring external inspection, enabling the system to assess its own health while continuing to operate.
Solution Approach 2:
The diagnostic measurements are taken continuously during system operation rather than during scheduled stoppages. The force sensors and accelerometers collect data in real-time as the material support member travels through the system, maintaining continuous monitoring without interrupting the conveying function.
3Productivity
If numerous small deviations from specification are allowed, then system operation is maintained, but cumulative detrimental effects occur
Solution Approach 1:
The diagnostic device provides continuous feedback on system conditions by measuring drag forces and alignment deviations. The force sensors detect when engagement forces against restraining surfaces exceed thresholds, and accelerometers identify abnormal vibrations, allowing operators to detect and correct small deviations before they accumulate into major problems.
Solution Approach 2:
The system performs preliminary detection of alignment issues and drag problems during normal operation. By identifying minor deviations early through continuous monitoring, corrective actions can be taken proactively before the deviations accumulate and cause significant performance degradation or system failure.
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
The diagnostic device reduces downtime by providing accurate, detailed information on system conditions, enabling technicians to quickly identify and address issues, ensuring the material handling system operates within specifications and preventing excessive drag and misalignment.
Implementation Method 1
a force sensor that measures a force of engagement of the material support member against the restraining surface
Implementation Method 2
A diagnostic device equipped with force sensors, accelerometers, and wireless transmitters is installed on the conveying system to measure forces and accelerations
Data Source
AI summary
A technique is provided for diagnosing deficiencies in a material handling system having a track and a material support member adapted to travel on the track. A diagnostic device travels with the material support member and includes one or more sensors that measure one or more parameters of the material support member. Such parameters may include an amount of force exerted laterally against one or more restraining members or the accelerations of the material support member. The material handling system may include a plurality of slats connected in an endless web that defines a conveying surface upon which articles are transported.