Draper Header Conveying Ribs for Edge Crop Loss Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing belt cutting systems suffer from crop loss and contamination due to inefficient grain guidance, particularly with small grain sizes like rapeseed, leading to increased maintenance and oil contamination, especially in flexible knife bar designs.
Innovation Solution
The belt cutting device incorporates equidistantly arranged conveying ribs on the central and side belts, with parallel side ribs and inclined transition sections connecting them, guiding grains away from the edge areas and minimizing accumulation, using materials that resist wear and deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the central belt and side belts are equipped with conveying ribs to guide crop material, then crop guidance is improved, but grains at the outer edge areas are captured by side belt conveying ribs and conveyed underneath the side belts causing crop loss
Solution Approach 1:
The conveying ribs on the central belt are designed with different local qualities: the outer end portions are extended laterally beyond the outer edges of the central belt to specifically address the grain capture problem at the edge areas, while the inner portions maintain standard configuration for general conveying function
Solution Approach 2:
The extended outer end portions of the central belt conveying ribs act as intermediary barriers between the central belt and side belts, intercepting grains before they can be captured by the side belt conveying ribs and redirecting them back onto the central belt
2Adaptability or versatility
If a flexible knife bar is used to adapt to terrain variations, then adaptability is improved, but the knife bar does not assume a horizontal position causing grains to reach the frame opening and accumulate, leading to material loss and oil contamination
Solution Approach 1:
The extended conveying ribs on the central belt perform preliminary anti-action by creating barriers that prevent grains from reaching the frame opening and accumulation areas, countering the negative effect of the flexible knife bar's non-horizontal position before the grains can cause contamination or loss
3Loss of substance
If conveying ribs are arranged to deflect grains from edge areas, then crop loss is reduced, but the design complexity increases
Solution Approach 1:
The conveying ribs are segmented into different functional portions: inner portions for general conveying and outer end portions extended laterally for edge grain protection. This segmentation allows each portion to perform its specific function while maintaining overall system simplicity
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to a belt cutting machine (1) comprising: - a frame (2) with a central segment (3) having at least one continuously circulating central belt (8) and two side segments (4) each having at least one laterally conveying, continuously circulating side belt (7), wherein the central belt (8) and the side belts (7) are each provided on their material-conveying upper belt surface with equidistantly arranged conveying ribs (14; 16) which are perpendicular to the respective conveying direction (FR) of the central belt (8) and the side belts (7).side belts (7) are arranged, as well as a cutter bar (6) extending substantially across the width of the belt cutter (1), wherein each conveying rib (14) of the center belt (8) is provided with side ribs (18) running parallel to outer edges (19) of the center belt (8), which are connected directly to an outer end of the respective conveying rib (14) by an inclined transition section (17), wherein the side ribs (18) extend section by section in the conveying direction (FR) of the center belt (8).