Track Roller Segmented Flanges for Load Distribution
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Solution Overview
Problem
Off-road vehicles with endless tracks face limitations in load capacity and durability, particularly when using narrower tracks, which can lead to premature cracking and reduced useful life due to uneven weight distribution and alignment issues.
Innovation Solution
The design of a track roller with multiple flange members and guide-lug members that contact various portions of the track, allowing for even weight distribution and secure alignment, thereby increasing load capacity without risking premature cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the track width is reduced to improve maneuverability, then the vehicle can navigate tighter spaces, but the load capacity decreases and the track is more prone to premature cracking
Solution Approach 1:
The track roller is segmented into multiple flange members (at least three) that contact different portions of the track, dividing the load distribution function into multiple contact points. This segmentation allows the roller to effectively support loads on narrower tracks by distributing weight across multiple flange members, preventing premature cracking while maintaining reduced track width for better maneuverability.
2Ease of operation
If the track width is reduced to improve maneuverability, then the vehicle can navigate tighter spaces, but uneven weight distribution occurs leading to premature cracking
Solution Approach 1:
The roller is divided into multiple flange members that contact different portions of the track, creating multiple load distribution points. This segmentation ensures even weight distribution across the narrower track, preventing stress concentration and premature cracking, thereby maintaining track durability despite reduced track width.
Solution Approach 2:
Different portions of the track are engaged by different flange members at different locations. This local engagement ensures that weight is distributed evenly across various sections of the track, preventing localized stress concentration that would lead to cracking, while maintaining the overall narrow track design for maneuverability.
3Device complexity
If traditional roller designs are used, then the structure is simple, but alignment issues occur reducing track life
Solution Approach 1:
The roller structure is segmented into multiple flange members that contact different portions of the track, providing multiple alignment reference points. This segmentation enables the track to maintain proper alignment with the roller and vehicle, preventing misalignment-induced wear and extending track life, while the overall structure remains relatively simple.
Solution Approach 2:
The multiple flange members and guide-lug members automatically engage with corresponding portions of the track, creating self-aligning contact points. This self-service alignment mechanism ensures the track maintains proper positioning without requiring complex external alignment systems, reducing both complexity and alignment issues.
Data Source
AI summary
A system includes a track and a track roller. In some examples, the track roller includes an axle member and at least three flange members. The axle member defines a first axis. The at least three flange members extend from the axle member substantially perpendicularly to the first axis. A first portion of the axle member is disposed between a first pair of adjacent flange members of the at least three flange members. A second portion of the axle member is disposed between a second pair of adjacent flange members of the at least three flange members. Each of at least two of the at least three flange members and the first and second portions are configured to contact the track when the track is mounted on a vehicle suspension system including the track roller.