Agricultural Baler Pickup Lateral Adjustment Mechanism
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Solution Overview
Problem
Conventional agricultural balers often produce inconsistent bales due to uneven crop material distribution, especially when the baler is positioned off-center relative to the windrow, leading to varying crop material density across the bale.
Innovation Solution
An agricultural crop baler equipped with a shiftable partition mechanism that adjusts the flow of crop material into the baling chamber by transversely moving shiftable walls, allowing for real-time correction of uneven material distribution and ensuring uniform bale formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the baler is positioned off-center relative to the windrow to accommodate varying windrow widths, then the baler can handle different windrow sizes, but the crop material distribution becomes uneven across the baling chamber
Solution Approach 1:
The partition wall is made movable rather than fixed, allowing it to dynamically adjust its position to compensate for off-center baler positioning. The hydraulic cylinder enables the partition to shift laterally, changing the crop passage configuration in real-time to maintain uniform material distribution despite varying windrow positions and widths.
Solution Approach 2:
The partition wall creates a localized adjustable region within the crop pickup assembly. By modifying only the partition wall position rather than the entire baler structure, the system achieves local adaptation to windrow variations, directing crop flow uniformly into the baling chamber while maintaining overall system stability.
2Ease of operation
If the pickup header width is larger than the baling chamber width to allow off-center positioning, then the baler can accommodate position variations, but crop material is distributed unevenly across the baling chamber width
Solution Approach 1:
The partition wall's movable design allows the crop passage to dynamically adapt to off-center positioning. As the baler operates off-center, the hydraulic system adjusts the partition wall position to realign the crop flow path, ensuring uniform material distribution into the baling chamber despite the pickup header's larger width providing positioning tolerance.
3Productivity
If the baling chamber width is larger than the windrow width, then the entire windrow can be collected, but less crop material is introduced on the sides of the bale compared to the middle region
Solution Approach 1:
The partition wall creates a focused, adjustable crop passage that concentrates and directs material flow uniformly across the baling chamber width. By locally controlling the crop flow path through partition adjustment, the system ensures that all regions of the baling chamber receive appropriate material distribution, preventing side regions from being under-filled despite the chamber's larger width.
Data Source
Figure 1
Figure 1a
Figure 2
AI summary
An agricultural crop baler (20) includes a baling chamber (44), a crop pickup (26), and an adjustable partition mechanism (28). The crop pickup (26) is upstream from the baling chamber (44) to collect severed crop material and direct a flow of crop material toward the baling chamber. The partition mechanism is located between the crop pickup and the baling chamber to control the flow of crop material from the crop pickup to the baling chamber. The partition mechanism (28) includes a wall assembly (68) that at least partly defines a crop passage (76) extending along a crop-flow direction between the crop pickup (26) and the baling chamber (44). The wall assembly (68) includes a shiftable wall (74a, b) that is shiftable transversely to the crop-flow direction to adjustably vary the crop passage and thereby the flow of crop material to the baling chamber (44).