Harvesting Device Rotatable Sorting Members Prevent Jamming
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Solution Overview
Problem
Existing harvesting devices for agricultural products face difficulties in cleaning the passage area of products due to accumulation and jamming issues, particularly with elongated products like grass and straw, which leads to inefficient unloading and increased maintenance needs.
Innovation Solution
The harvesting device incorporates rotatable sorting members positioned along the transport path, with sliding bodies to intercept and guide products, preventing accumulation and ensuring smooth disengagement, and features a transport path with varying prong sizes to facilitate efficient unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If harvesting elements with prongs are used to lift and transport agricultural products, then productivity is improved, but product accumulation and jamming occur in the innermost area of the prongs
Solution Approach 1:
The prong is divided into multiple sections along its length, with each section having a different number of harvesting elements. The first section has more harvesting elements than the second section, creating segments that prevent product accumulation and facilitate smooth product flow while maintaining high harvesting productivity.
2Area of stationary object
If prongs are arranged in parallel lines around the extension direction, then harvesting coverage is improved, but cleaning of the passage area becomes difficult
Solution Approach 1:
The harvesting elements are arranged dynamically along the prong length rather than uniformly. The density of harvesting elements varies by section, creating a dynamic configuration that maintains wide harvesting coverage while leaving adequate passage space for easy cleaning and product flow.
3Device complexity
If the prong portion radially outside the band is kept constant, then structural simplicity is improved, but product disengagement efficiency decreases
Solution Approach 1:
Different sections of the prong have different structural characteristics. The first section has a constant prong portion radially outside the band for structural simplicity, while the second section has a variable prong portion that increases toward the free end to improve product disengagement efficiency at the discharge point.
Data Source
AI summary
A harvesting device for agricultural products having an elongated shape, includes a frame having a main extension direction, a plurality of harvesting elements for agricultural products, each including an elongated harvesting prong, a plurality of bands attached to the frame, arranged along the main extension direction and spaced apart so that each harvesting element is at least partially interposed between two successive bands. A transport path includes a first section, where a prong portion radially outside the band has a constant or increasing size, and a second section, where a prong portion radially outside the band has a decreasing size to a disengagement point. A plurality of sorting members is each associated to a band and positioned below the band, along the second section of the transport path, in which each sorting member is rotatable about its central axis.