Wing Pulley Debris Expulsion via Segmented V-Shaped Wings
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Solution Overview
Problem
Existing wing pulleys are ineffective in expelling debris from conveyor belts, leading to wear and damage, as debris often gets wedged between the pulley and the belt, causing vibration and reducing belt life.
Innovation Solution
A wing pulley design featuring spaced hubs with radially positioned wings, each with a contact surface that overlaps adjacent wings, supported by metal gussets, directing debris away from the belt and minimizing contact points to prevent wedging, using angled and V-shaped configurations to enhance debris expulsion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wing pulley design is used, then结构简单 (simple structure), but debris gets wedged between pulley and belt causing vibration and wear
Solution Approach 1:
The pulley is divided into multiple discrete wings (at least three wings) radially spaced around the hub, each wing acting as an independent debris-expelling element. This segmentation allows debris to be effectively pushed from multiple locations simultaneously, improving debris expulsion effectiveness while maintaining reasonable structural complexity through modular design
Solution Approach 2:
The wings are configured to extend radially outward from the hub in a planar arrangement, creating a two-dimensional debris-expulsion surface. This dimensional arrangement allows the wings to effectively push debris away from the belt contact area, transforming the pulley's debris management capability from passive to active while maintaining structural simplicity
2Reliability
If wing contact surface area is increased, then debris expulsion improves, but belt wear and vibration increase due to more contact points
Solution Approach 1:
Each wing is designed with a specific contact surface area and angular spacing optimized for local debris expulsion. The wings are positioned and dimensioned so that their contact surfaces with the belt are minimized while maintaining effective debris pushing capability. This local optimization reduces overall belt wear and vibration while preserving debris removal efficiency
Solution Approach 2:
The wings are configured to rotate with the pulley, dynamically pushing debris away from the belt contact area during rotation. This dynamic action allows the wings to effectively expel debris without requiring large static contact surfaces, thereby reducing belt wear and vibration while maintaining high debris removal efficiency
3Reliability
If more wings are added to increase debris expulsion, then debris removal improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The pulley is segmented into multiple identical or similar wing components that can be manufactured separately and then assembled around the hub. This segmentation allows for standardized manufacturing processes, reducing overall manufacturing complexity even as the number of wings increases. Each wing can be produced using the same tooling and assembly procedures
Solution Approach 2:
The wings are designed as universal components that serve multiple functions: supporting the belt, expelling debris, and maintaining pulley structure. This multi-functionality reduces the need for additional specialized components, thereby simplifying manufacturing while improving debris expulsion effectiveness through the coordinated action of the multiple wings
Data Source
AI summary
A belt conveyor wing pulley is comprised of a plurality of V-shaped wings radially spaced about and connected to circumferential surfaces of a pair of spaced hubs. Gussets are connected to facing surfaces of adjacent wings and to the circumferential surfaces of the hubs.