Multi-disc assembly with elastomeric hub for disc screen
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Solution Overview
Problem
Existing disc screens require cumbersome processes for replacing worn-out discs, especially when only one disc is damaged, due to the need to remove multiple discs simultaneously and the complexity of mounting arrangements in multi-disc assemblies.
Innovation Solution
A multi-disc assembly with elastomeric material hubs and embedded rigid inserts that split into two halves for direct engagement with the shaft, using fasteners to secure the assembly, allowing for easier installation and removal without intervening securing hubs or mounting plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-disc assembly uses a complex mounting arrangement with securing hubs and mounting plates, then the assembly is stable and reliable, but the process of removing and replacing discs becomes more complex and time-consuming
Solution Approach 1:
The multi-disc assembly is segmented into individual discs that can be independently removed and replaced. Each disc is mounted directly on the shaft without requiring complex securing hubs or mounting plates, allowing the assembly to be divided into manageable units for maintenance while maintaining overall structural integrity
Solution Approach 2:
The complex mounting arrangement (securing hubs and mounting plates) is extracted and removed from the design. The discs are mounted directly on the shaft, eliminating unnecessary intermediate components and simplifying the overall structure while maintaining reliability through direct engagement
2Reliability
If discs are mounted on shafts with complex securing arrangements, then the discs remain firmly attached during operation, but removing a single worn disc requires removing multiple discs and disturbing other functional discs
Solution Approach 1:
The disc assembly is segmented so that each disc can be independently accessed and removed from the shaft. This segmentation allows maintenance personnel to remove only the specific worn disc without disturbing other functional discs, significantly improving ease of operation while maintaining secure attachment during operation
Solution Approach 2:
The mounting system allows for dynamic access during operation - discs can be securely attached during normal operation but can be independently removed when needed. The direct mounting on shafts enables flexible maintenance operations without requiring disassembly of the entire disc assembly
3Ease of operation
If a split disc design is used with bolt assemblies clamping the disc, then the disc can be removed without disturbing other discs, but the replacement process becomes more time-consuming when multiple discs must be replaced
Solution Approach 1:
Multiple individual discs are merged into a multi-disc assembly that can be handled and installed as a single unit. This combining approach allows multiple discs to be replaced simultaneously, significantly reducing the total time required for maintenance operations while maintaining the ability to access individual discs when needed
Data Source
AI summary
A multi-disc assembly for releasable attachment to the shaft of a disc screen is provided. The multi-disc assembly includes a multi-disc hub of elastomeric material including multiple discs configured for use in the disc screen. The hub has a through bore configured for direct engagement over a shaft of the disc screen. A disc screen comprising the multi-disc assembly and method of using the multi-disc assembly are also provided.