Compact Loader Drivetrain Layout With Torsion Axle Track Support
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Solution Overview
Problem
Current loaders are often too large to maneuver through narrow entryways, making them difficult to access confined spaces, and there is a need for a compact loader with improved maneuverability and functionality.
Innovation Solution
A loader design featuring a compact frame with a tracked drive assembly that includes an endless track, roller wheels, and torsion axles allowing for up-and-down movement, along with a hingedly connected operator cab and HVAC system for improved accessibility and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If loaders are manufactured in large sizes to maintain structural strength and functionality, then operational efficiency is improved, but maneuverability and accessibility to confined spaces deteriorates
Solution Approach 1:
The patent applies dynamics by implementing a torsion axle mechanism that allows the lower run of the track to move up and down relative to the idler wheels. This dynamic adjustment enables the track to adapt to uneven terrain and maintains contact with the ground, improving maneuverability and accessibility to confined spaces while preserving operational efficiency through maintained traction and stability
2Adaptability or versatility
If loaders are manufactured in large sizes to carry and operate a wide range of attachments, then functionality is improved, but the ability to pass through narrow entryways deteriorates
Solution Approach 1:
The torsion axle mechanism provides dynamic adjustment of the track's lower run position, allowing the loader to navigate narrow entryways and confined spaces while maintaining its capability to carry and operate various attachments. The flexible track configuration enables passage through restricted areas without compromising the loader's overall functionality
3Stability of the object's composition
If the track is rigidly supported to maintain stability, then stability is improved, but the ability to navigate uneven terrain deteriorates
Solution Approach 1:
The torsion axle mechanism introduces controlled flexibility to the track support system. The lower run can move up and down relative to the idler wheels, allowing the track to conform to uneven terrain while the overall loader structure maintains stability. This dynamic adaptation improves terrain navigability without compromising operational stability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compact loader achieves enhanced maneuverability and accessibility in confined spaces while maintaining operational efficiency and functionality.
Implementation Method 1
a torsion axle, with the track being entrained on the idler wheels and the one or more roller wheels. The idler wheels are supported relative to the loader frame and support the track adjacent the forward and aft track margins. The torsion axle shiftably supports a single one of the one or more roller wheels relative to the idler wheels and urges the single roller wheel into rolling engagement with the lower run, with the torsion axle permitting up-and-down movement of at least part of the lower run relative to the idler wheels.
Data Source
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AI summary
A compact work machine, such as a compact track loader and/or a compact utility loader, which can carry and operate a wide range of attachments while maintaining a reduced operating footprint.