Wing Pulley Central Reinforcing Disk Material Discharge
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Solution Overview
Problem
Belt conveyor pulleys, particularly tail pulleys, experience wear and potential failure due to bulk material falling onto the lower portion of the belt, leading to costly downtime and replacement, as existing designs lack effective material discharge mechanisms without compromising pulley strength and reliability.
Innovation Solution
A conveyor pulley design featuring a central reinforcing disk and multiple wings with contact bars, where the wings extend from the disk to the ends of the shaft, forming angles between 30° and 60° with the axis, allowing for effective discharge of unwanted material while maintaining pulley strength through a gusset-free, robust construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pulley designs are used, then pulley structure is simple, but material accumulates on the pulley causing wear and failure
Solution Approach 1:
The pulley is segmented into a central reinforcing disk and multiple wings that extend radially outward. This segmentation allows material to be discharged through the spaces between wings while maintaining structural integrity through the central disk, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The invention adds a radial dimension to material discharge by extending wings outward from the central disk at specific angles (30°-60°). This dimensional change enables material to be expelled laterally rather than relying solely on gravitational discharge, improving reliability without excessive complexity.
2Reliability
If material discharge mechanisms are added to expel unwanted material, then pulley reliability improves, but pulley structure complexity increases
Solution Approach 1:
The wings serve multiple functions: they structurally reinforce the pulley while simultaneously acting as material discharge mechanisms. This multi-functionality improves reliability by expelling material without adding separate complex discharge devices, thus managing the complexity-reliability tradeoff.
Solution Approach 2:
The pulley structure itself provides the material discharge function through its wing configuration. The wings' geometric arrangement (30°-60° angles) enables automatic material expulsion during rotation without requiring external discharge mechanisms, improving reliability while keeping the structure relatively simple.
3Productivity
If wings are added to discharge material, then material discharge effectiveness improves, but pulley strength may be compromised
Solution Approach 1:
The wings are merged with a central reinforcing disk to form an integrated structure. This combination ensures that the wings (which provide material discharge effectiveness) are structurally supported by the robust central disk, maintaining pulley strength while achieving effective material discharge.
Solution Approach 2:
The pulley combines different structural elements (central disk and radial wings) into a composite configuration. This composite structure optimizes both strength (through the central disk) and material discharge effectiveness (through the wing geometry), resolving the contradiction between these two parameters.
Data Source
AI summary
Wing pulleys that engage a conveyor belt during conveying operations are described. The wing pulley includes a central reinforcing disk that strengthens and stabilizes the pulley.