Endless Track Grit Trap Recess for Wear Resistance
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Solution Overview
Problem
Endless tracks with embedded cores suffer from rapid wear and loss of adhesion due to the interaction between roller wheels and the elastomeric material, leading to poor retention of cores and increased traction issues on soft and uneven surfaces.
Innovation Solution
The design incorporates cores with transversally extending wings and guide projections on the inner side of the track, featuring a recessed wheel-facing surface that impedes grit passage and enhances wear resistance by preventing grit from entering the gap between the core and elastomeric material, thereby maintaining adhesion and reducing wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If roller wheels roll on the track's inner side, then the track provides necessary guidance and support, but rapid wearing of the elastomeric material occurs
Solution Approach 1:
A grit trap recess is introduced as an intermediary structure between the roller wheels and the elastomeric material. This recess captures and retains grit particles that would otherwise become embedded in the elastomeric material and accelerate wear. The recess acts as a mediator that intercepts harmful particles before they can cause damage to the track material.
Solution Approach 2:
The invention converts the potentially harmful presence of grit into a beneficial feature by designing the grit trap recess to deliberately capture and retain grit particles. Instead of allowing grit to freely embed in the elastomeric material and cause wear, the recess confines grit in a controlled location where it cannot harm the track, effectively transforming a harmful factor into a protective feature.
2Ease of operation
If roller wheels engage the cores and elastomeric material, then wheel guidance is achieved, but fissures develop between the elastomeric material and the cores
Solution Approach 1:
The grit trap recess serves as an intermediary barrier that prevents grit particles from penetrating between the cores and elastomeric material. By capturing grit in the recess, the structure prevents this harmful material from acting as a wedge that would create fissures and compromise the bond between the elastomeric material and the embedded cores.
Solution Approach 2:
The invention transforms the potentially damaging interaction between grit and the core-elastomeric material interface into a protective mechanism. The recess deliberately captures grit particles, preventing them from causing fissures at the critical bond interface, thereby converting a harmful factor into a protective feature that preserves structural integrity.
3Device complexity
If the track structure allows grit passage, then simple design is maintained, but grit entry accelerates wear and reduces adhesion
Solution Approach 1:
The grit trap recess is a relatively simple structural addition that acts as an intermediary barrier against grit penetration. It introduces a localized feature rather than requiring a complete redesign of the track structure, maintaining overall simplicity while providing effective protection against grit-induced wear and adhesion loss.
Data Source
AI summary
An endless track for traction of a work vehicle. The endless track comprises a body of elastomeric material and a plurality of cores at least partially embedded in the elastomeric material. Each core comprises a pair of wings extending transversally to a longitudinal axis of the endless track, and a wheel guide comprising at least one guide projection projecting on an inner side of the endless track. Each guide projection comprises a top end and a wheel-facing side for facing wheels of the work vehicle, such as roller wheels that roll on the inner side of the endless track. The wheel-facing side comprises a recess to impede passage of grit between the wheel-facing side and a portion of the elastomeric material in the recess. This can enhance a wear resistance of the endless track.