Adjustable Track Spacing Mechanism for Agricultural Vehicles
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Solution Overview
Problem
Agricultural and off-road vehicles with track systems face challenges in accommodating varying field configurations, such as different row crop spacings, due to fixed track system spacings, which limits their versatility and traction efficiency.
Innovation Solution
The development of adjustable track systems that allow for varying the spacing of laterally-adjacent track systems in a widthwise direction without requiring additional parts, utilizing a track-engaging assembly with a drive wheel, idler wheels, and roller wheels, and incorporating a transmission with planetary gearing to maintain stability while adjusting the spacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the track system spacing is fixed, then the structural simplicity is maintained, but the adaptability to different field configurations is reduced
Solution Approach 1:
The track system employs adjustable spacing between laterally-adjacent track systems, allowing the vehicle to adapt to different row crop configurations. The spacing can be modified by moving track systems relative to the vehicle frame while maintaining connection to the powertrain, transforming a static structure into a dynamic one that responds to field conditions.
Solution Approach 2:
The track system design allows a single vehicle configuration to serve multiple field conditions through adjustable spacing. The same track system can accommodate both narrow and wide row crop configurations without requiring additional parts or complex adjustments, making the vehicle universally applicable to diverse agricultural environments.
2Adaptability or versatility
If additional parts such as spacers are used to adjust track spacing, then the adaptability is improved, but the device complexity and number of parts increase
Solution Approach 1:
The invention eliminates the need for additional parts such as spacers by integrating the spacing adjustment capability directly into the track system structure. The adjustment is achieved by moving existing track systems relative to the vehicle frame, extracting the need for extra components while maintaining adaptability.
Solution Approach 2:
The track system performs its own spacing adjustment function using its existing structural components. The track systems can be moved laterally relative to the vehicle frame and remain connected to the powertrain through existing connections, allowing the system to adjust its own configuration without external parts or complex mechanisms.
3Adaptability or versatility
If the drive wheel is supported by the track system frame, then the structural stability is improved, but the adjustability of track spacing is reduced
Solution Approach 1:
The support function is segmented between the vehicle frame and the track system frame. The drive wheel is supported entirely by the vehicle frame rather than the track system frame, allowing the track system to be moved laterally for spacing adjustment while the drive wheel maintains its stable position relative to the vehicle centerline through frame support.
Data Source
AI summary
Track systems for traction of a vehicle in which a spacing of laterally-adjacent ones of the track systems in a widthwise direction of the vehicle is adjustable. This may facilitate use of the vehicle in different conditions (e.g., in different field configurations, such as in different configurations of row crops, where the vehicle is an agricultural vehicle). For instance, the spacing of the laterally-adjacent ones of the track systems may be adjustable while the laterally-adjacent ones of the track systems are connected to a powertrain of the vehicle and/or without requiring use of additional parts (e.g. spacers).