Combine Harvester Suction Blower and Spreader Plate for Residual Grain Distribution
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Solution Overview
Problem
Combine harvesters face issues with residual grain germination and turbulence during the ejection of residual components and plant residues, leading to increased weed resistance and inefficient distribution.
Innovation Solution
The combine harvester employs a suction fan device to separate and eject residual components over the field using a deflector spreader, while the residual flow is distributed via a radial distributor, preventing turbulence and optimizing the distribution process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If residual components and residual stream are ejected together by a single distribution device, then the device complexity is reduced, but turbulence occurs during ejection leading to poor distribution quality
Solution Approach 1:
The patent divides the ejection system into two separate devices: a first distribution device for residual components and a second distribution device for residual stream. This segmentation prevents turbulence by eliminating the interaction between the two material streams during ejection, thereby improving distribution quality while accepting increased device complexity.
2Device complexity
If residual components are not separated from residual stream, then the separation device complexity is reduced, but residual grain germination increases leading to weed resistance
Solution Approach 1:
The patent implements a separation device that divides residual components from residual stream into separate streams. This segmentation allows residual components to be ejected separately, preventing them from mixing with residual stream and thereby reducing residual grain germination and weed resistance.
Solution Approach 2:
The separation device extracts and removes residual components from the residual stream, isolating them for separate ejection. This extraction prevents residual grains from remaining in the residual stream and causing germination issues later.
3Device complexity
If residual components are mixed with residual stream, then the conveying system complexity is reduced, but distribution efficiency decreases due to turbulence
Solution Approach 1:
The patent segments the conveying system into separate conveyors for residual components and residual stream. This segmentation maintains distribution efficiency by preventing turbulence between the two streams while accepting increased system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces residual grain germination and improves the distribution quality by separating and distributing residual components and flows independently, addressing agricultural problems related to weed resistance and distribution efficiency.
Implementation Method 1
a suction blower device (8), which is located downstream of the cleaning device (6), so that the remaining components can be drawn in through an inlet opening (10) of the suction blower device (8) and thus transferred to the cleaning device (6) by means of the suction blower device (8)
Implementation Method 2
The separating device can be, for example, a straw walker or at least a separating rotor, which separates the crop stream, consisting of grain and other residue, from the residual stream by means of a shaking motion, causing the crop stream to settle below the residual stream due to gravity
Implementation Method 3
the combine harvester includes a chopping device by which the residual stream is processed, preferably shredded
Implementation Method 4
The distribution device may, in particular, be a radial distributor
Data Source
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AI summary
The invention relates to a self-propelled combine harvester (1) comprising a separation device (2) for separating a crop stream (3) from a residual stream (4), a chopping device (5) for processing the residual stream (4), a cleaning device (6) for cleaning the crop stream (3) of residual components (7) contained therein, a suction blower device (8), and a distribution device (9), wherein the suction blower device (8) is arranged downstream of the cleaning device (6) so that the residual components (7) can be drawn in through an inlet opening (10) of the suction blower device (8) and thus transferred by means of the suction blower device (8) to the cleaning device (6), wherein the distribution device (9) is suitable for discharging the residual stream (4) processed by means of the chopping device (5), and wherein an outlet opening (11) of the suction blower device (8) allows the residual components (7) to be discharged from the suction blower device. (8) are blown out,The invention provides a spreader plate (12) to provide a combine harvester suitable for reducing the germination of residual grains contained in the residual components. The spreader plate has a plurality of guide elements (13) by means of which residual components (7) supplied to the spreader plate (12) can be distributed in a transverse direction (14) of the combine harvester (1). The spreader plate (12) is positioned vertically below the distribution device (9) so that the residual components (7) blown out by means of the suction blower device (8) can be transferred to the spreader plate (12). The invention further relates to a method for harvesting plants standing in a field using a combine harvester.