Angled Divider Pans for Corn Harvesting Efficiency
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Solution Overview
Problem
Conventional cutting headers are inefficient in harvesting corn due to tall, leaning stalks that often go uncut and fall to the ground, leading to significant losses and high costs for specialized corn headers, which can deter farmers from including corn in crop rotation.
Innovation Solution
A corn harvesting header apparatus with divider pans and a knife assembly that allows a conventional cutting header to be converted for corn harvesting by angling the header to cut corn stalks efficiently, utilizing divider pans with parallel sides and exposed guard fingers to guide stalks into the cutting path, reducing losses and enabling efficient corn stalk collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional cutting header is used to harvest corn, then the cost is reduced, but harvesting efficiency is insufficient due to tall leaning stalks that go uncut
Solution Approach 1:
The header is divided into multiple functional zones using divider pans that create separate cutting slots for different row sections. This segmentation allows the knife to efficiently process stalks in organized lanes, improving harvesting efficiency while using a conventional header structure
Solution Approach 2:
Divider pans are positioned at an angle to the knife bar, creating a three-dimensional arrangement where pans extend forward and upward. This angular positioning allows leaning corn stalks to be guided into the cutting path, enabling efficient harvesting of tall leaning stalks with a conventional header
2Device complexity
If a conventional cutting header is used without divider pans, then the device complexity is reduced, but crop loss increases due to uncut stalks falling to the ground
Solution Approach 1:
Divider pans act as intermediary structures that guide leaning corn stalks into the knife cutting path. These pans mediate between the leaning stalks and the horizontal knife, ensuring stalks are properly positioned for cutting and preventing them from falling to the ground
Solution Approach 2:
The divider pans are positioned forward of the knife to preliminarily guide and organize stalks before they reach the cutting point. This preliminary action ensures stalks are properly aligned and prevents crop loss before cutting occurs
3Reliability
If seed pans with flat top surfaces are used, then seeds are contained, but the knife coverage is reduced and not all areas are utilized
Solution Approach 1:
The divider pans are positioned at an angle to the knife bar rather than parallel to it. This angular positioning allows the knife to cut stalks along the entire length of the pans, maximizing knife utilization while the raised sides continue to contain seeds effectively
Data Source
AI summary
A corn harvesting header comprises a knife bar extending along a front lower edge of a cutting header, with triangular knife sections attached along the bar and a plurality of guards with guard fingers extending forward. Pointed divider pans extend forward from the header such that a slot is formed between adjacent pans. A mounting bracket extends down from a rear of each pan and is attached to forward end portions of a pair of adjacent guard fingers, leaving rear portions of these guard fingers exposed. The divider pans are attached to alternating pairs of guard fingers such that a pair of bare guard fingers extends forward under and laterally adjacent to edges of each slot. The bottom surface of each seed pan is above the guard fingers an elevated distance that is greater than a spacing distance between the guard fingers. The header cuts the corn rows at angle.