Corn Stalk Roll Axial Radial Blade Segmentation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing corn stalk machines face issues with high cutting power requirements and frequent jamming due to the difficulty in cutting and breaking up hard corn stalks, leading to machine damage and downtime.

Innovation Solution

The design of a corn stalk roll with axial and radial blades that make continuous, cross-cutting actions, reducing the need for high cutting power and minimizing jamming risks through strategically placed outlets and adjustable blade configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If conventional corn stalk heads with intersecting blades are used to cut hard stalks, then cutting capability is achieved, but cutting power requirements become excessively high and jamming occurs frequently

Engineering Contradiction:
Improvecutting powerVSAvoidjamming resistance
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The cutting action is segmented into two distinct phases: first axial blades make a longitudinal cut along the stalk, then radial blades make a transverse cut perpendicular to the axial cut. This segmentation of the cutting function into orthogonal directions reduces the power required for each individual cutting action and prevents jamming by eliminating intersecting blade paths.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple intersecting blades are used to break up thick stalks, then cutting effectiveness improves, but device complexity and maintenance requirements increase

Engineering Contradiction:
Improvecutting effectivenessVSAvoidblade configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The blade system is segmented into two independent sets: axial blades mounted on the roll body extending parallel to the rotation axis, and radial blades mounted perpendicular to the axial blades. This segmentation simplifies the overall configuration by eliminating the need for complex intersecting blade arrangements while maintaining effective stalk breakdown through orthogonal cutting actions.

Inventive Principle:
Principle #1Segmentation

3Productivity

If conventional intersecting blades are used to process corn stalks, then stalk breakdown is achieved, but loss of time due to jamming and maintenance increases

Engineering Contradiction:
Improvestalk processing speedVSAvoiddowntime for maintenance
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

By segmenting the cutting action into sequential axial and radial phases rather than simultaneous intersecting cuts, the system prevents jamming occurrences. The orthogonal arrangement ensures that cut pieces are ejected cleanly without blocking the cutting path, eliminating downtime for jam clearance and reducing maintenance frequency.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS7788890B2Corn stalk roll, corn stalk head and related corn stalk machine
Publication Date: 2010.09.07 F LLI CRESSONI
  • US7788890B2 patent drawing
  • US7788890B2 patent drawing
  • US7788890B2 patent drawing

AI summary

A corn stalk roll, a corn stalk head, and a corn stalk machine suitable for harvesting cobs and separating the stalk or stem of the cob plant is described. The machine requires low cutting power and is not susceptible to jamming.