Adjustable Roller Spacing for Varying Corn Ear Thickness

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Solution Overview

Problem

Existing harvester head adapter devices for self-propelled forage harvesters are not optimized to accommodate the varying thickness of corn ears, leading to inefficiencies in the harvesting process.

Innovation Solution

A harvester head adapter device with an adjustable upper roller assembly relative to a fixed lower roller, allowing for parallel orientation and adjustable spacing to accommodate different corn ear thicknesses, facilitated by a central panel with an opening and supported by a frame for coupling to a self-propelled forage harvester.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed roller spacing is used in the harvester head adapter, then the device structure is simple, but it cannot accommodate varying thicknesses of corn ears leading to harvesting inefficiencies

Engineering Contradiction:

Improveaccommodation of varying corn ear thicknessVSAvoidroller assembly adjustability mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The upper roller assembly is made movable relative to the central panel, allowing dynamic adjustment of the spacing between upper and lower rollers. This enables the adapter to accommodate varying corn ear thicknesses while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The spacing parameter between the upper and lower rollers is made adjustable through the movable upper roller assembly. This allows the physical dimension to change according to the corn ear thickness being harvested, improving adaptability without requiring complete structural redesign.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If non-parallel rollers are used, then the device can accommodate thickness variations, but mechanical stress on the rollers increases and harvesting performance becomes inconsistent

Engineering Contradiction:

Improveconsistent harvesting performanceVSAvoidmechanical stress on rollers

Core Design Contradiction:

ReliabilityVSStress or pressure

Solution Approach 1:

The upper roller assembly can move dynamically to accommodate thickness variations while maintaining parallel orientation with the lower roller. This dynamic adjustment allows consistent harvesting performance without subjecting the rollers to excessive mechanical stress from forced non-parallel positioning.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10743467B2Self-propelled forage harvester corn head adapter

Publication Date: 2020.08.18 KOOIMA AG INC

AI summary

A self-propelled forage harvester corn head adapter allows a self-propelled forage harvester to utilize a corn head of the type used to harvest corn with a combine. The adapter includes a frame configured for coupling to a self-propelled forage harvester. A central panel is coupled to the frame and has an opening extending through the central panel. A lower roller assembly has a lower roller positioned to extend along a lower edge of the opening. An upper roller assembly extends across the opening having an upper roller being parallel to the lower roller assembly. The upper roller assembly is movably coupled relative to the central panel such that spacing between the upper roller and the lower roller is adjustable.