Variable Spaced Conveyor Belt Tension Management
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Solution Overview
Problem
Conventional flat wire conveyor belts experience fatigue breakage at wicket areas due to tension distribution, particularly in turns, leading to increased manufacturing costs with heavier gauge materials used for reinforcement.
Innovation Solution
A conveyor belt design featuring variable spaced links, with denser links on the edges and sparser links in the middle, reducing material usage and weight while maintaining strength, by using a 1x1 pattern on edges and a 2x1 or other patterns in the middle to manage tension without reinforcing bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavier gauge material is used for tension links to eliminate fatigue failures, then the belt strength and reliability are improved, but the manufacturing cost and material weight increase
Solution Approach 1:
The patent applies different link spacing patterns in different zones of the conveyor belt. Edge rows have 1x1 spacing (higher density) to handle tension loads, while center rows have 2x1 or greater spacing (lower density) where tension is minimal. This local differentiation provides strength where needed while reducing material quantity and cost in areas where it is not required.
2Ease of manufacture
If uniform link spacing is used throughout the belt, then the manufacturing process is simplified, but the belt cannot efficiently manage tension distribution in turns
Solution Approach 1:
The patent implements variable link spacing where edge rows maintain 1x1 spacing for tension management in turns, while center rows use 2x1 or greater spacing. This local differentiation optimizes tension distribution capability in critical areas while maintaining reasonable manufacturing simplicity through a repeating pattern structure.
3Strength
If denser link spacing is used on belt edges, then the belt's ability to withstand tension in turns is improved, but the overall material usage and weight increase
Solution Approach 1:
The patent concentrates denser 1x1 link spacing only in edge rows where tension loads occur during turns, while using sparser 2x1 or greater spacing in center rows. This localized approach provides the necessary edge tension resistance while minimizing overall material usage and conveyor belt weight compared to uniform dense spacing.
Data Source
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AI summary
A variable spaced conveyor belt (100) includes a plurality of spaced tractive rods (180) and a plurality of rows of wickets (160) transversely disposed with respect to a direction of travel (T) and interconnecting the plurality of spaced tractive rods, each of the rows of wickets including a plurality of first links (310) and a plurality of second links (320), the plurality of first links have a first spacing and the plurality of second links have a second spacing, the first spacing being less than the second spacing.