Cutter Implement Push-Bar Crop Leaning System
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Solution Overview
Problem
Existing cutter implements struggle to efficiently cut tall, rigid crops that require a slight lean forward to optimize cutting performance without causing the crop to over-bend or become permanently tipped.
Innovation Solution
A cutter implement with a push-bar and actuator system that adjusts vertically to lean the crop forward, combined with a curtain that defines the cutting region and increases resistance against rearward movement, ensuring optimal cutting performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cutter implement is used to cut tall, rigid crops, then the crops can be harvested, but the crops cannot be leaned forward sufficiently without over-bending or permanent tipping
Solution Approach 1:
The push bar is made movable in the vertical direction through an actuator system, allowing it to dynamically adjust its position to push crops forward at the optimal height. This dynamic adjustment enables the system to adapt to different crop heights and stiffness, achieving the desired forward lean without over-bending the crops.
Solution Approach 2:
A curtain is introduced as an intermediary element between the push bar and the crops. The curtain transmits the pushing force from the bar to the crops more gently and uniformly, preventing direct contact that could cause localized over-bending or permanent tipping while still achieving the desired forward lean for optimal cutting.
2Productivity
If the push-bar is positioned to lean crops forward, then cutting performance improves, but the system complexity increases due to actuator and connector requirements
Solution Approach 1:
The connector transitions from a direct linear connection to a cable-based system that operates in multiple dimensions. The cable can accommodate vertical movement of the push bar while maintaining connection to the actuator, allowing the system to achieve complex motion patterns using simpler individual components.
Solution Approach 2:
The actuator can adjust the vertical position of the push bar, changing the spatial parameter of the system. This parameter adjustment allows optimization of the pushing height for different crop conditions, improving cutting efficiency without requiring a completely different system architecture.
3Ease of operation
If the curtain is made moveable to define the cutting region, then crop flow is improved, but the structural complexity of the housing increases
Solution Approach 1:
The curtain is implemented as a flexible, movable element rather than a rigid structural component. This flexible film can move with the crop flow and be positioned by the push bar, defining the cutting region without requiring complex rigid housing structures or multiple fixed components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively leans tall crops forward, improving cutting performance by minimizing re-cutting and enhancing cut height uniformity, while preventing over-bending of the crop.
Implementation Method 1
a pully coupled to the housing and configured to re-direct the connector between the actuator and the push-bar
Data Source
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AI summary
A cutter implement for cutting crop material includes a housing, a cutter, and a push-bar. The housing has a forward end for engaging the crop material when moving in a direction of operation. The housing at least partially defines a cutting region disposed at the forward end thereof. The cutter is coupled to the housing and is operable to cut the crop material in the cutting region. The push-bar is positioned forward of the cutter relative to the direction of operation. The push-bar is operable to lean the crop material in a forward direction relative to the direction of operation. The push-bar is adjustable in a vertical direction relative to a ground surface.