Harvesting Attachment Frame with Internal Struts
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Solution Overview
Problem
Current harvesting attachments for agricultural machines face limitations in width due to stability and material stress issues, leading to increased dead weight and reduced efficiency in harvesting operations.
Innovation Solution
A harvesting attachment with a frame featuring a cavity and internal struts, such as an L-shaped configuration with cross and longitudinal struts, and tubular through openings, which reduces weight while maintaining stability, allowing for a broader design and potential segmentation for adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the width of the harvesting attachment is increased to harvest more efficiently, then productivity is improved, but the dead weight and material stress increase
Solution Approach 1:
The frame is divided into multiple segments that can be connected together, allowing the harvesting attachment to be configured in different widths and sizes. This segmentation enables the structure to adapt to different field conditions while maintaining optimal weight-to-productivity ratio for each configuration.
Solution Approach 2:
The patent introduces a third dimension by adding struts that extend into the cavity space of the frame. These internal struts provide structural support without increasing the external dimensions, allowing the frame to support broader configurations while maintaining compact overall size and reduced weight.
2Productivity
If the width of the harvesting attachment is increased to reduce cross-over, then productivity is improved, but the bending moment and material stress increase
Solution Approach 1:
The frame structure is segmented into multiple sections with connection points, allowing each segment to independently manage local stresses. This segmentation distributes the bending moment across multiple joints and structural elements rather than concentrating stress in a single continuous beam.
Solution Approach 2:
The frame utilizes composite construction combining tubular profiles with internal strut support, creating a hybrid structural system that optimizes both strength and weight. The combination of outer wall and internal strut forms a composite load-bearing system that resists bending moments more effectively than traditional solid construction.
3Stability of the object's composition
If traditional solid frame construction is used to ensure stability, then strength is improved, but the dead weight increases
Solution Approach 1:
Instead of using uniform solid construction throughout, the patent applies structural elements locally where needed. The outer wall provides enclosure and surface support, while internal struts are positioned specifically to provide buckling resistance and stability at critical stress points, eliminating unnecessary material in non-critical areas.
Solution Approach 2:
The frame employs a composite construction approach combining tubular outer walls with internal strut support systems. This composite structure achieves superior stability-to-weight ratio by distributing loads through multiple structural planes and utilizing the synergistic effect of different structural elements working together.
Data Source
AI summary
A harvesting attachment for a harvesting machine includes a frame, and the frame includes an outer wall which defines a cavity in which at least one strut is arranged.