Adjustable Crop Conveying Chute for Stable Forage Flow
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Solution Overview
Problem
Existing self-propelled forage harvesters face challenges in maintaining optimal crop flow quality and efficiency, particularly at varying throughputs, due to the post-acceleration device's inability to handle crop flow effectively.
Innovation Solution
A self-propelled forage harvester with a crop conveying chute featuring an adjustable internal cross-section, enabled by position-adjustable wall elements and an actuator-controlled system, ensures optimal crop mat thickness and stability, enhancing the post-acceleration process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the crop conveying chute has a fixed internal cross-section, then the device complexity is reduced, but the crop flow quality deteriorates at varying throughputs
Solution Approach 1:
The crop conveying chute is designed with an adjustable internal cross-section that can dynamically adapt to varying crop throughput conditions. The chute includes movable wall elements or adjustable components that allow operators to modify the cross-sectional area according to the actual crop flow rate, enabling optimal performance across different operating conditions while maintaining relatively simple structural implementation.
Solution Approach 2:
The internal cross-section parameters of the crop conveying chute are made variable rather than fixed. By allowing adjustment of the cross-sectional dimensions (area, shape, or configuration), the system can optimize crop flow characteristics for different throughput levels, improving reliability without requiring completely complex reconfigurable structures.
2Reliability
If the crop conveying chute has a variable internal cross-section, then the crop flow quality is improved, but the device complexity increases
Solution Approach 1:
The crop conveying chute incorporates adjustable components such as movable walls, sliding panels, or reconfigurable elements that allow the internal cross-section to be modified. These dynamic elements are designed to be integrated into the existing chute structure with minimal additional complexity, enabling quality improvement through straightforward mechanical adjustments rather than complex automated systems.
3Productivity
If the crop layer thickness is increased, then the post-acceleration device processes the crop more efficiently, but the crop flow stability deteriorates due to fanning and swirling
Solution Approach 1:
The internal cross-section parameters of the crop conveying chute are adjusted to optimize the balance between crop layer thickness and flow stability. By modifying the cross-sectional area, shape, or configuration, the system can maintain an optimal thickness that improves processing efficiency while preventing excessive fanning and swirling through proper flow channel design and dimensional optimization.
Data Source
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AI summary
The invention relates to a self-propelled forage harvester (1) with a chopping device (6), with a post-acceleration device (12), with a crop conveying chute (24) arranged between the chopping device (6) and the post-acceleration device (12), wherein the crop conveying chute (24) has an adjustable inner cross-section.