Pneumatic Seed Drill Air Flow Singulation
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Solution Overview
Problem
Current seed drills and planters face challenges in efficiently and cost-effectively distributing seeds one by one, particularly for high-capacity machines and crops like wheat, due to complex and energy-consuming systems, and the need for manual filling of multiple seed containers.
Innovation Solution
A method and device that uses a single air system with a pressure source to transport seeds from a central container to grain distribution units, where seeds are singularized and fed into furrows using a pressurized air flow, facilitated by a grain distribution disc or drum, potentially powered by a small electric motor, allowing for efficient and cost-effective seed distribution across multiple units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a vacuum system or overpressure system is used to distribute seed kernels one by one in precision seed drills, then seed singulation precision is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent combines the seed transport function and seed singulation function into a single integrated air system. The same air flow that transports seeds from the central container also provides the pressure differential needed for singulation at the grain distribution devices, eliminating the need for separate vacuum or overpressure systems.
Solution Approach 2:
The air system is designed to perform multiple functions: transporting seeds through conduits, pressurizing grain distribution devices, and enabling seed singulation. This multi-functional approach reduces overall system complexity while maintaining precision seed distribution.
2Quantity of substance
If multiple central containers are used to store seed for different row units, then seed supply capacity is improved, but manual filling time increases
Solution Approach 1:
The patent merges multiple seed storage functions into a single central container. The integrated air system distributes seeds from this one container to multiple grain distribution devices, eliminating the need for multiple containers and their associated manual filling operations.
Solution Approach 2:
Instead of having multiple physical containers, the system creates a replicated distribution network where a single seed source is copied and distributed to multiple row units through the air transport system, achieving the same functional result with fewer physical components.
3Productivity
If separate air systems are used for seed transport and grain distribution, then seed transport efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent merges the seed transport system and grain distribution system into a single air flow system. The same air flow that moves seeds from the central container also provides the pressure differential needed for seed singulation and distribution, eliminating redundant energy consumption from separate systems.
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 simplifies the seed distribution process, reduces seed consumption by up to 30%, ensures uniform planting conditions, and increases harvest quality by allowing precise placement of each seed, while being more energy-efficient and less costly than existing systems.
Implementation Method 1
A pneumatic means as well as a pressure source, suitably in the form of at least one fan (10), for the discharge and transport of seed kernels pressurize one single conduit (11)
Implementation Method 2
the grain distribution units (14, 14a) which are pressurized by the air flow
Implementation Method 3
A pneumatic means as well as a pressure source, suitably in the form of at least one fan (10), for the discharge and transport of seed kernels pressurize one single conduit (11)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a sowing method at a seed drill comprising at least one seed container (3, 55, 86, 102) for seed kernels or the like, and several tools (18, 31, 20, 52, 109) to bring the seed kernels down into the ground, wherein the seed drill has a pneumatic means (10, 59, 82, 101) in the form of at least one pressure source, such as a fan, for the transport of the seed kernels from the seed container to the tools. According to the invention - an air flow is generated by said pneumatic means (10, 59, 82, 101); - seed kernels are supplied to said air flow from said seed container (3, 55, 86, 102); - the seed kernels are supplied to at least one grain distribution unit (14, 14a, 87, 105, 110); - each grain distribution unit is pressurized by said air flow at said grain distribution unit; and - the seed kernels are transported further through a seed conduit (17, 39) for seed kernels down into the ground. The invention also relates to a device for performing the sowing method.