Pivoting Idler Roller for Conveyor Belt Misalignment Correction
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Solution Overview
Problem
Conveyor belt misalignment in industrial operations, caused by various factors such as impact forces, uneven weight distribution, and temperature changes, leads to increased wear and damage, resulting in significant productivity losses due to prolonged downtime for correction.
Innovation Solution
A system comprising a pivoting concavely-shaped rolling contact surface, pivotally attached to a stationary member, which rotates simultaneously about a vertical and longitudinally aligned axis, applying a combined transverse pushing, torsional steering, and tilting effect to correct misalignment, utilizing idler rollers and an actuator controlled by sensors and a computer for real-time adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional alignment correction methods (single-axis pivoting or fixed idlers) are used, then the device complexity is low, but the alignment correction effectiveness is insufficient
Solution Approach 1:
The idler assembly is designed to pivot dynamically about two perpendicular axes (transverse axis for yaw correction and longitudinal axis for roll correction) rather than being fixed. This dynamic capability allows the system to adapt to different misalignment conditions and apply corrective forces in multiple directions, significantly improving alignment correction effectiveness while maintaining reasonable device complexity through the use of sequential pivot mechanisms.
Solution Approach 2:
The invention introduces a second dimension of pivoting by allowing the idler assembly to rotate about both a transverse axis (vertical in the side view) and a longitudinal axis (horizontal in the top view). This dual-axis capability transforms a single-degree-of-freedom system into a two-degree-of-freedom system, enabling correction of both lateral and angular misalignment components simultaneously.
2Manufacturing precision
If the conveyor belt is stopped for inspection and fixing, then the misalignment can be corrected, but productivity is reduced due to downtime
Solution Approach 1:
The system incorporates sensors that continuously monitor conveyor belt position and automatically detect misalignment conditions. When misalignment is detected, the control system automatically activates the actuators to pivot the idler assembly and correct the alignment, enabling the system to self-correct without human intervention and without stopping the conveyor belt, thus maintaining productivity while ensuring proper alignment.
Solution Approach 2:
The system uses sensors to provide real-time feedback on conveyor belt position and misalignment conditions. This feedback is processed by a control system that automatically adjusts the idler assembly position to correct misalignment, creating a closed-loop control system that continuously maintains proper alignment without requiring manual inspection or conveyor shutdown.
3Productivity
If misalignment is left uncorrected, then productivity is maintained, but wear and damage to the conveyor belt and components increases
Solution Approach 1:
Continuous sensor monitoring provides real-time feedback on conveyor belt alignment, enabling the system to detect and correct misalignment conditions immediately when they occur. This prevents prolonged periods of misalignment that would cause excessive wear and damage, thereby maintaining both productivity and reliability by addressing alignment issues proactively rather than reactively.
Solution Approach 2:
The automated detection and correction system operates continuously without interrupting conveyor belt operation, automatically correcting misalignment as it occurs. This ensures that the conveyor belt and supporting components remain properly aligned during operation, preventing the wear and damage that would otherwise accumulate during extended periods of misalignment while maintaining uninterrupted productivity.
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
Effectively corrects conveyor belt misalignment by applying a combination of forces that reduce wear and damage, minimizing downtime and improving operational efficiency by continuously monitoring and adjusting to maintain alignment.
Implementation Method 1
The plurality of idler rollers collectively define a rolling contact surface for the conveyor belt
Implementation Method 2
The plurality of idler rollers collectively define a rolling contact surface for the conveyor belt
Data Source
AI summary
A system for correcting transverse misalignment of a conveyor belt relative to a supporting pulley, includes a frame is pivotally attached to a stationary member. A guide surface engages the frame to guide pivoting of the frame about the pivot point simultaneously about a vertical axis and a longitudinally aligned axis. Idler rollers rotatably mounted on the frame define a rolling contact surface for the conveyor belt, which is concavely-shaped in a transversely-extending vertical plane. The pivoting of the frame causes the surface to impart a combined transverse pushing effect, torsional steering effect, and torsional tiling effect on the conveyor belt. An actuator applies a force to pivot the frame about the axis. A computer determines an amount of the misalignment based on a signal from a sensor, and automatically controls the actuator to pivot the frame, depending on the determined amount of the misalignment.