Self-Adjusting Inflection Zone Assembly for Oversized Conveyor Lumps
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Solution Overview
Problem
Conventional high angle conveyors with fixed idler rollers are prone to damage when large lumps of material exceed the specified capacity, as the fixed distance between idler rollers cannot accommodate oversized loads, leading to potential damage to conveyor belts and surrounding structures during passage through inflection zones.
Innovation Solution
A self-adjusting inflection zone assembly with pivotable frames and spring assemblies that increase spacing between idler rollers when large lumps are detected, allowing the material to pass without causing damage by adjusting the distance dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed idler rollers are used in conventional high angle conveyors, then the structure is simple and stable, but the conveyor cannot accommodate oversized material lumps without causing damage to belts and structures
Solution Approach 1:
The patent applies the dynamics principle by making the idler roller frames pivotable rather than fixed. The first and second frames are connected via pivots that allow them to rotate relative to each other, enabling the spacing between idler rollers to dynamically adjust in response to material size. This dynamic adjustment mechanism resolves the contradiction by providing adaptability for oversized material while maintaining a relatively simple mechanical structure without complex control systems.
2Adaptability or versatility
If the spacing between idler rollers is increased to accommodate large lumps, then oversized material can pass through, but the structural stability and support for normal material flow is compromised
Solution Approach 1:
The dynamic pivot connection allows the frame to automatically adjust its configuration based on the size of material passing through. For normal-sized material, the frame maintains its stable, compact configuration providing reliable support. When oversized material is detected, the frame pivots to increase spacing, allowing the material to pass without damage. This dynamic adaptation resolves the contradiction between adaptability and reliability.
Solution Approach 2:
The pivot mechanism acts as a pre-designed cushioning element that anticipates the arrival of oversized material. By allowing controlled movement and expansion of the frame structure before the material causes damage, the system prevents harmful effects while maintaining operational stability during normal conditions.
3Strength
If fixed spacing between idler rollers is maintained, then structural integrity is preserved, but damage occurs when material exceeds specified capacity
Solution Approach 1:
The patent converts the potentially harmful effect of oversized material into a useful function. The pivot mechanism is designed to respond to the presence of large material by allowing frame expansion, transforming what would be a damaging force into a controlled adjustment action. The material's size itself becomes the trigger for the beneficial adaptation, resolving the contradiction between structural integrity and protection from oversized material.
Data Source
AI summary
A high angle conveyor includes a first conveyor belt, a second conveyor belt, a first idler roller engaged with the first conveyor belt, the first idler roller being coupled to a first pivot frame, and a second idler roller engaged with the second conveyor belt, the second idler roller being coupled to a second pivot frame. The first conveyor belt and the second conveyor belt define an inflection point between the first idler roller and the second idler roller. The first and second pivot frames are pivotable from an initial position toward an expanded position in response to a lump of material larger than a specified capacity of the high angle conveyor passing through the inflection point.