Seed Distribution Tower Flow Adjustment for Uniform Secondary Streams
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Solution Overview
Problem
Existing seed distribution systems in seeder machines experience turbulence and inconsistency in seed distribution due to abrupt direction changes and variations in seed type, air flow, and ground topography, leading to uneven seed flow in secondary streams.
Innovation Solution
A distribution tower with a flow adjustment system, including a plenum chamber and discharge outlets, equipped with a control system and actuators to adjust seed distribution between secondary streams, using adjustable seed deflection assemblies and airflow control assemblies to ensure uniform or selective seed distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the primary stream of air and seeds travels vertically through the seed distribution tower and enters the distribution head, then the seeds are transported to the distribution towers, but a significant amount of turbulence is created which adversely affects the consistency of the seed distributed among the secondary streams
Solution Approach 1:
The patent introduces a flow adjustment system with adjustable components upstream from the distribution head to pre-adjust the seed flow distribution before the seeds enter the distribution head. This preliminary action prevents turbulence-induced inconsistency by equalizing flow rates in advance, ensuring consistent seed distribution across all secondary streams.
2Productivity
If the distribution head splits the primary stream into multiple secondary streams, then seeds are distributed to multiple openers, but seed flow becomes uneven among the secondary streams due to variations in seed type, air flow, and ground topography
Solution Approach 1:
The patent implements a dynamic flow adjustment system with actuators that can modify the flow distribution in real-time based on actual operating conditions. The adjustable components allow the system to adapt to variations in seed type, air flow, and ground topography, maintaining uniform seed flow across secondary streams while preserving high seeding efficiency.
Solution Approach 2:
The patent changes physical parameters of the flow adjustment system, such as opening sizes and positions, to optimize seed distribution. By adjusting these parameters, the system compensates for variations in seed type and air flow conditions, ensuring uniform seed flow to all openers.
3Stability of the object's composition
If flow adjustment components are added to the distribution tower, then seed distribution consistency is improved, but the device complexity increases
Solution Approach 1:
The patent divides the flow adjustment function into separate, modular components that can be independently adjusted. Each component handles a specific portion of the flow adjustment, making the system easier to manufacture, assemble, and maintain while achieving consistent seed distribution.
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
The system effectively adjusts seed flow to achieve consistent and uniform distribution among secondary streams, accommodating variations in seed type and terrain, enhancing planting accuracy and efficiency.
Implementation Method 1
an upright conduit for pneumatically conveying particulate material in a primary stream toward an upper end of the conduit
Implementation Method 2
airflow control assemblies to adjust seed distribution between secondary streams
Data Source
AI summary
A distribution tower comprising an upright conduit for pneumatically conveying particulate material in a primary stream. The tower additionally includes a distribution head at the upper end of the conduit, with the distribution head comprising a plenum chamber for receiving the primary stream of particulate material from the conduit. The distribution head further comprises a plurality of discharge outlets for directing particulate material out of the plenum chamber by splitting the primary stream into a plurality of secondary streams. Each of the secondary streams is discharged from the distribution head via one of the discharge outlets. The tower additionally includes a flow adjustment system configured to adjust a distribution of particulate material between the secondary streams without completely restricting the flow of any of the secondary streams through their respective discharge outlet. The tower further includes a control system for controlling operation of said flow adjustment system.