Resilient Bushing Suspension for Track Vehicle Weight Distribution
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Solution Overview
Problem
Current suspension systems for track-driven work vehicles do not adequately distribute weight across load-bearing wheels, leading to increased stress on tracks and reduced longevity due to inadequate motion damping between system components.
Innovation Solution
A suspension system that incorporates resilient bushings to couple roller shafts to a support beam, allowing for deformation and compression, thereby enabling relative movement between the roller wheels and the support beam, which provides damping and weight distribution across the rollers, while also limiting yaw movement to prevent contact between the wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid coupling is used between roller wheels and support beam, then structural strength is maintained, but weight distribution and motion damping are insufficient
Solution Approach 1:
A resilient bushing is introduced as an intermediary component between the roller wheel assembly and the support beam. The bushing includes a resilient element that allows relative movement and damping while maintaining the structural connection, thereby distributing weight and reducing track stress without compromising overall structural integrity.
Solution Approach 2:
The coupling between roller wheels and support beam is changed from rigid to resilient by incorporating a bushing with a resilient element. This parameter change allows the system to accommodate motion differences and distribute loads more effectively, reducing peak stresses on the tracks while maintaining connection strength.
2Reliability
If resilient bushings are added to enable relative movement, then motion damping and weight distribution improve, but device complexity increases
Solution Approach 1:
The resilient bushing serves as a compact intermediary component that provides motion damping and weight distribution functions within a single element. Rather than adding complex mechanisms, the bushing is integrated into the existing coupling structure, minimizing additional complexity while achieving the desired damping effect.
3Stress or pressure
If resilient bushings allow relative movement, then weight distribution improves, but yaw control and wheel contact prevention become more difficult
Solution Approach 1:
The bushing's resilient element properties are selected to provide appropriate damping characteristics that allow vertical motion for weight distribution while restraining rotational (yaw) movements. The material and geometric parameters of the resilient element are optimized to differentiate between desirable vertical compliance and undesirable rotational freedom.
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 system effectively reduces stress on the tracks by distributing the vehicle's weight across the rollers, enhancing motion damping and track longevity, and accommodating angled driving surfaces with roll conformance and vertical damping.
Implementation Method 1
The resilient bushing may be deformed during operation of the work vehicle, thereby allowing the roller shaft to move relative to the undercarriage support beam
Implementation Method 2
resilient bushing configured to be coupled to the support beam... The roller shaft may be received within the shaft opening of the resilient bushing such that the roller shaft is coupled to the support beam via the resilient bushing
Implementation Method 3
enhancing motion damping and track longevity... allowing for deformation and compression, thereby enabling relative movement between the roller wheels and the support beam, which provides damping
Data Source
AI summary
A roller suspension system for a track-driven work vehicle may generally include a support beam and a resilient bushing configured to be coupled to the support beam. The resilient bushing may define a shaft opening. In addition, the system may include a roller wheel assembly having a roller wheel and a roller shaft. The roller wheel may be rotatable relative to the roller shaft. In addition, the roller shaft may be received within the shaft opening of the resilient bushing such that the roller shaft is coupled to the support beam via the resilient bushing.