Resilient Bogie Track Assembly for Off-Road Shock Absorption
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Solution Overview
Problem
Off-road vehicles equipped with traditional track assemblies face issues such as ground compaction, limited traction, especially on wet surfaces, and poor ride quality due to lack of shock absorption and vibration damping.
Innovation Solution
A track assembly design featuring a frame with drive and roller wheels, an endless elastomeric track, and a resilient spring-mounted bogie that allows movement relative to the frame, providing improved traction and ride quality by absorbing shocks and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If track assemblies are used instead of tires, then ground compaction is reduced and traction is improved, but shock absorption and vibration damping performance deteriorate
Solution Approach 1:
The patent changes the physical parameters of the track assembly by introducing a resilient layer between the track and the ground-engaging elements, and by making the bogie pivotable rather than fixed. This allows the system to dynamically adjust its mechanical properties to absorb vibrations while maintaining low ground pressure.
Solution Approach 2:
The patent employs a composite structure combining rigid components (frame, drive wheel, track) with resilient elements (resilient layer, pivotable bogie mechanism). This composite design enables the track assembly to simultaneously reduce ground compaction and dampen vibrations through the elastic properties of the resilient layer.
2Strength
If traditional rigid track assemblies are used, then structural strength is maintained, but ride quality deteriorates due to poor vibration absorption
Solution Approach 1:
The patent modifies the structural parameters by introducing a resilient layer with specific elastic properties and a pivotable bogie mechanism, transforming the rigid track assembly into a semi-flexible system that maintains strength while improving ride quality through vibration absorption.
Solution Approach 2:
The resilient layer acts as an intermediary element between the rigid track structure and the ground, absorbing vibrations and shocks before they reach the vehicle chassis. The pivotable bogie serves as another intermediary that allows dynamic adjustment to terrain irregularities.
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
Enhances traction and floatation on uneven ground surfaces while reducing ground compaction and improving ride quality through effective shock absorption and vibration damping.
Implementation Method 1
The resilient device comprises a spring. The spring allows movement of the bogie relative to the frame in the height direction of the track assembly and allows movement of the bogie relative to the frame in a direction transversal to the height direction of the track assembly
Implementation Method 2
improving ride quality through effective shock absorption and vibration damping
Data Source
AI summary
A track assembly for providing traction to an off-road vehicle, such as an agricultural vehicle, a construction vehicle, or another work vehicle, in which the track assembly may comprise a suspension between a frame of the track assembly and a bogie carrying roller wheels of the track assembly.