Sorghum Reeling Header with Segmented Pans and Rod Crusher
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Solution Overview
Problem
Current sorghum harvesting machinery experiences high vibrations due to the large moment of inertia of traditional reel headers, leading to damage and inefficiency in harvesting sorghum heads, and requires additional processes to manage stalks, which prolongs operation cycles and reduces economic efficiency.
Innovation Solution
A sorghum cutting header with multiple reeling pans and a rod crushing device, featuring a reeling header with reduced radius and adjustable elastic teeth, and a rod crushing mechanism to handle stalks, which reduces vibration and allows for efficient harvesting and stalk management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If traditional reel header with large radius is used to harvest sorghum, then the header can reach higher sorghum plants, but the moment of inertia increases causing large vibrations that damage ear heads
Solution Approach 1:
The traditional single large-radius reel is segmented into multiple small-radius reeling pans arranged in parallel. Each reeling pan has a radius of 150-200mm, significantly smaller than traditional reels. The multiple pans work simultaneously to process different rows of sorghum, achieving both high harvesting capability and reduced vibration through distributed mass arrangement.
Solution Approach 2:
The invention transitions from a single-plane reel structure to a multi-plane three-dimensional arrangement of reeling pans. The pans are positioned at different heights and angles, with adjustable inclination angles of 10-20 degrees, creating a spatial distribution that reduces the moment of inertia while maintaining effective harvesting reach.
2Length of stationary object
If header height is increased to harvest taller sorghum, then more sorghum varieties can be harvested, but vibration amplitude increases affecting ear head integrity
Solution Approach 1:
The header is divided into multiple independent reeling pan units that can be distributed across different height levels. This segmentation allows the header to reach tall sorghum while each individual pan maintains a small moment of inertia, reducing overall vibration amplitude during operation.
Solution Approach 2:
The inclination angle of the reeling pans is made adjustable (10-20 degrees) to optimize the distribution of mass and reduce vibration. The adjustable parameters allow adaptation to different sorghum heights while maintaining optimal vibration characteristics through parameter optimization.
3Productivity
If traditional harvesting method is used, then sorghum heads can be harvested, but additional stalk removal processes are required prolonging operation cycle
Solution Approach 1:
The harvesting and stalk processing functions are merged into a single integrated operation. The reeling pans not only harvest the ear heads but also simultaneously process and eject the stalks through the same mechanical structure, eliminating the need for separate stalk removal processes and reducing the operation cycle.
Solution Approach 2:
The reeling pan mechanism serves multiple functions: it harvests ear heads, processes stalks, and ejects both materials. This multi-functional design consolidates what would traditionally require separate operations into a single unified system, improving productivity while reducing time loss.
Data Source
AI summary
A sorghum cutting header and a sorghum harvester with large feed volume and multiple reeling pans includes a reeling header, a rod crushing device, and a reciprocating cutter device. The rod crushing device is located under the reeling header. The reeling header includes reeling pans, frame rods, bearing seats, reeling pan shafts, tandem shafts, and tandem shaft bearing seats. The reeling pan shafts are installed in parallel on the frame rod through bearing seats. The adjacent reeling pan shafts are in transmission connection, and at least one reeling pan shaft is in transmission connection with the power device. An inner part of any reeling pan shaft penetrates the tandem shafts. Both ends of the tandem shafts are supported on the frame rods, and one end of the tandem shafts is fixed on the tandem shaft bearing seats. The reeling pans are mounted on any reeling pan shaft.