Seed-Air Mixture Distribution via Segmented Deflection Bend
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Solution Overview
Problem
Existing pneumatic distribution machines face challenges in achieving uniform distribution of seeds in the air flow to the dispersing tube and distributor, requiring complex and costly designs for the deflection bend and transition pieces.
Innovation Solution
The deflection bend is designed using conventional curved bends and line sections, allowing for simple production and attachment, resulting in an S-shaped configuration with uniform curvature and diameter, enabling even seed distribution without additional installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a flat tube bend is used for the deflection bend, then a better and more even distribution of seed in the air flow is achieved, but the production complexity increases and additional transition pieces are required
Solution Approach 1:
The deflection bend is divided into multiple sequential arc sections (first arc, second arc, third arc) with different curvature radii. Each arc segment serves a specific function in gradually redirecting the air flow while maintaining seed distribution uniformity, avoiding the need for complex flat tube bends and transition pieces.
Solution Approach 2:
The curvature radius is varied systematically across different arc segments. The first arc has a larger radius, the second arc has a smaller radius, and the third arc has an intermediate radius. This parameter variation allows the air flow to be gradually redirected while preventing seed deposition and maintaining even distribution throughout the deflection process.
2Ease of manufacture
If conventional curved bends are used for the deflection bend, then the production cost and complexity are reduced, but the uniform distribution of seed in the air flow may be compromised
Solution Approach 1:
The deflection bend is divided into multiple sequential arc sections (first arc, second arc, third arc) with different curvature radii. Each arc segment serves a specific function in gradually redirecting the air flow while maintaining seed distribution uniformity, avoiding the need for complex flat tube bends and transition pieces.
Solution Approach 2:
The curvature radius is varied systematically across different arc segments. The first arc has a larger radius, the second arc has a smaller radius, and the third arc has an intermediate radius. This parameter variation allows the air flow to be gradually redirected while preventing seed deposition and maintaining even distribution throughout the deflection process.
3Manufacturing precision
If additional installations are added to the deflection bend to improve seed distribution, then the uniform distribution of seed is enhanced, but the device complexity and production cost increase
Solution Approach 1:
The deflection bend design uses the natural aerodynamic properties of sequentially arranged arcs with varying curvature radii to achieve uniform seed distribution. The system serves itself by utilizing the inherent flow characteristics of curved passages rather than requiring additional active installations or components within the deflection bend.
Solution Approach 2:
The deflection bend is divided into multiple sequential arc sections (first arc, second arc, third arc) with different curvature radii. Each arc segment serves a specific function in gradually redirecting the air flow while maintaining seed distribution uniformity, avoiding the need for complex flat tube bends and transition pieces.
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 configuration ensures uniform distribution of the seed-air mixture to the distributor, leading to an even supply to individual dispensing elements, reducing production costs and complexity.
Implementation Method 1
the seed located in the reservoir (1) is fed via the dosing element (2) in adjustable amounts into the conveying air stream of the conveying line (4)
Implementation Method 2
The vertically ascending area (9) of the conveying line (4) has an area which is designed as a wave-shaped dispersing tube (10)
Data Source
AI summary
The machine (6) has a deflection arc (13) having a curved region of 30 to 60 degrees viewed on a horizontal region (8) of a conveying line (4) in a conveying direction (12). A straight line obliquely extending portion (14) of the line adjoins the deflection arc. Another deflection arc (15) has a curved region of 110 to 135 degrees and adjoins extending region of the conveying line. A curvature arc (16) with an opposite curvature and a curvature angle measure adjoins the latter deflection arc such that the curvature arc is guided in a direction of a vertically extending diversion tube (10).