Compactor Seal Guard Labyrinth Structure for Debris Exclusion
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Solution Overview
Problem
Existing seal protection systems for compactor drivelines in harsh environments, such as landfill sites, are inadequate in preventing debris accumulation and subsequent seal damage, leading to costly repairs and downtime.
Innovation Solution
A multi-layered seal guard system comprising rotating and internal guards that create a labyrinth-like passage structure, restricting foreign material access to the seal area by forcing it through multiple gaps and spaces, trapping debris and preventing it from reaching the seal area until a sufficient volume builds up, allowing access only then.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-layer seal guard is used, then the structure is simple, but debris can easily reach the seal area causing damage
Solution Approach 1:
The seal guard is divided into multiple layers (first seal guard, second seal guard, third seal guard) with each layer providing additional protection. The first seal guard has a first layer and second layer, the second seal guard has a third layer and fourth layer, and the third seal guard has a fifth layer and sixth layer. This segmentation creates multiple barriers that debris must penetrate, significantly improving seal protection while managing structural complexity through modular design.
Solution Approach 2:
The seal guard layers are nested within each other, with each subsequent layer providing an additional barrier. The first seal guard is positioned closest to the seal area, followed by the second seal guard, and then the third seal guard. This nested arrangement creates a labyrinthine path that debris must traverse, effectively preventing debris from reaching the seal area while maintaining a compact overall structure.
2Object-affected harmful factors
If multiple seal guard layers are added, then debris protection is improved, but the device complexity increases
Solution Approach 1:
The protection system is segmented into six distinct layers across three seal guards, with each layer serving as an independent barrier. The first and second layers of the first seal guard, the third and fourth layers of the second seal guard, and the fifth and sixth layers of the third seal guard work together to progressively block debris of varying sizes and types, effectively reducing harmful factors while maintaining manageable complexity through systematic segmentation.
Solution Approach 2:
The seal guard system extends in the radial dimension from the axle outward, with each seal guard positioned at different radial distances from the axle. This dimensional arrangement creates a multi-dimensional barrier system where debris must travel through multiple radial zones, effectively increasing protection without proportionally increasing complexity in other dimensions.
3Reliability
If the seal guard creates narrow gaps for debris to pass, then the labyrinth effect is enhanced, but the gap size may allow fine debris through
Solution Approach 1:
The protection system segments debris filtration into multiple stages, with each seal guard layer presenting different gap configurations. Coarse debris is blocked by the outer layers, while finer debris is progressively filtered by inner layers. This multi-stage segmentation approach allows the system to handle both coarse and fine debris effectively, maintaining reliable seal protection without allowing fine debris to penetrate.
Solution Approach 2:
The seal guard system provides excessive protection by creating more barriers than the minimum required. The six-layer configuration across three seal guards ensures that even if some gaps allow fine debris through, multiple subsequent layers provide redundant protection. This partial or excessive action approach guarantees reliable seal area protection against all debris sizes.
Data Source
AI summary
A guard for a seal of a wheeled industrial machine, the guard comprising an cylindrical, annular body having a first plate, a second plate with an upper portion and a lower portion, and a connecting portion extending between the first plate and the second plate; wherein the first plate extends in a radially inward direction from the connecting portion and includes a plurality of holes; wherein the upper portion is configured to extend into a corresponding slot of a rotating element of a wheel of the wheeled industrial machine; and wherein the lower portion is configured to extend toward an axle of the wheeled industrial machine.