Trailer Caster Wheel Alignment for Swather Loading
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Solution Overview
Problem
Current trailers for self-propelled swathers face challenges in accommodating varying sizes and models, leading to issues with caster wheels pivoting uncontrollably during loading and unloading, potentially causing damage.
Innovation Solution
A trailer design with adjustable caster wheel supports and drive wheel supports that pivot and stow to accommodate different swather sizes, featuring caster wheel turner assemblies and ramps to ensure proper alignment and positioning of caster wheels, allowing for secure loading and controlled unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the trailer uses fixed caster wheel supports, then the structure is simple, but it cannot accommodate various sizes and models of swathers
Solution Approach 1:
The caster wheel supports are made movable rather than fixed, allowing them to be repositioned along the trailer frame to accommodate different swather widths. The supports can slide or be adjusted to different positions, transforming the static structure into a dynamic one that adapts to various loading requirements.
Solution Approach 2:
The trailer structure is divided into modular components, with caster wheel supports that can be independently positioned and adjusted. This segmentation allows each support to be placed at optimal locations for different swather sizes without requiring complete structural redesign.
2Ease of operation
If the caster wheels are allowed to pivot freely during unloading, then the swather can be easily driven off, but the caster wheels may swing in many directions and move off the caster wheel tracks causing damage
Solution Approach 1:
Ramps are introduced as intermediary structures between the trailer and ground during unloading. These ramps guide the caster wheels along a controlled path, mediating the transition from the trailer to the ground while preventing uncontrolled swinging and keeping wheels on track.
Solution Approach 2:
The trailer structure preliminarily positions the caster wheels on designated tracks or guides before unloading begins. This preliminary positioning ensures that when the swather is driven off, the wheels follow a predetermined safe path rather than swinging freely in all directions.
Data Source
AI summary
A trailer is provided for having a self-propelled swather mounted thereon. The trailer includes first and second caster wheel supports and first and second drive wheel supports. The caster wheel supports are selectively movable being stowed and support positions. The drive wheel supports are selectively movable between horizontally disposed and vertically disposed positions. Each of the caster wheel supports includes a caster wheel turning assembly to partially pivot the associated caster wheel as the swather is backed onto the trailer. The trailer also includes extenders for attachment to first and second ramps. The extenders may be stowed on the bumper.