Offset Windguard Arms for Agricultural Baler Crop Feeding
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Solution Overview
Problem
Existing agricultural balers face issues with windguards interfering with crop material feeding, leading to pinching and reduced baling capacity due to their proximity to the pickup roll and end flares.
Innovation Solution
A windguard assembly with laterally offset arm assemblies that position the windguard roll between the vertical planes defined by the end flares, reducing the risk of crop material pinching and increasing clearance for improved baling capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the windguard is positioned close to the pickup roll to ensure adequate compaction and prevent crop material from being blown off, then the windguard effectiveness is improved, but the windguard interferes with crop material feeding into the vehicle causing pinching and plugging
Solution Approach 1:
The patent applies dimensionality change by laterally offsetting the second arm relative to the first arm in the arm assembly. This lateral offset positions the windguard roll between vertical planes defined by end flares of the pickup assembly, creating spatial separation that prevents crop material pinching while maintaining vertical positioning for effective compaction. The windguard operates effectively in the vertical dimension while the arm assembly provides lateral clearance.
2Reliability
If the windguard is positioned close to the pickup roll to hold down crop material, then crop material containment is improved, but the baling capacity is reduced due to interference with feeding
Solution Approach 1:
The lateral offset of the second arm creates additional horizontal space between the windguard and the pickup roll interface. This dimensional adjustment allows crop material to feed smoothly into the baler without being pinched, thereby maintaining containment effectiveness while improving baling capacity by eliminating feeding interruptions.
3Device complexity
If the windguard arm is positioned directly above the pickup roll, then the structure is simplified, but crop material pinching and plugging occurs near the end flares
Solution Approach 1:
The arm assembly is segmented into a first arm and a second arm connected by an arm connector. The first arm extends vertically from the frame, while the second arm is laterally offset relative to the first arm. This segmentation allows the windguard to be positioned effectively for compaction while the lateral offset of the second arm prevents crop material pinching near the end flares, reducing plugging without significantly complicating the overall structure.
Data Source
AI summary
A feeding assembly includes: a frame; a pickup assembly carried by the frame and including a pickup roll, a plurality of tines carried by the pickup roll, and a pair of end flares, each of the end flares being disposed adjacent to a respective lateral end of the pickup roll and configured to redirect crop material picked up by the tines as the pickup roll rotates; and a windguard assembly including a windguard roll coupled to the frame by a pair of arm assemblies. Each of the arm assemblies includes: a first arm pivotably coupled to the frame; a second arm coupled to the first arm and the windguard roll; and an arm connector coupling the first arm to the second arm such that the second arm is laterally offset relative to the first arm and is positioned laterally between a pair of vertical planes defined by the end flares.