Pneumatic Seeder Drum Continuous Refill
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Solution Overview
Problem
The existing pneumatic precision seed drill's refill system is discontinuous and can only refill seeds during the turning process, limiting continuous seed separation and sowing capabilities.
Innovation Solution
A continuous seed conveyance system is achieved by using the air pressure from the refill line to generate the pressure difference for seed separation, allowing continuous refilling during the separating and sowing process, with interchangeable sieves for optimized seed separation based on size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large capacity storage tank is provided to achieve large area output, then the seed supply capacity is improved, but the refilling process becomes discontinuous and can only occur during turning
Solution Approach 1:
The patent merges the refilling function and seed separation function into a single integrated process. The air pressure that drives seed separation through the perforated drum is simultaneously used to refill the storage tank, combining two previously separate operations into one continuous process that eliminates downtime during refilling.
Solution Approach 2:
The system maintains continuous operation by using the air pressure generated during seed separation to continuously refill the storage tank. This eliminates the discontinuous refilling that previously required stopping during turning, allowing the seed supply system to operate continuously without interruption to the sowing process.
2Measurement precision
If air pressure is used for seed separation through perforated drum, then separation precision is improved, but the same air pressure cannot simultaneously refill the storage tank
Solution Approach 1:
The air pressure system is designed to perform multiple functions simultaneously: it generates pressure difference across the perforated drum for precise seed separation while also providing the pressure needed to refill the storage tank. This multi-functionality eliminates the need for separate air pressure systems for refilling and separation.
Solution Approach 2:
The system uses its own operational air pressure to automatically refill the storage tank without requiring external refilling operations. The air pressure inherently generated by the seed separation process serves the dual purpose of both separation and refilling, making the system self-sufficient.
3Ease of operation
If the receiving area for seed supply is designed to be relatively small, then the separating element performance is improved, but continuous seed conveyance during separating process is limited
Solution Approach 1:
The patent employs pneumatic pressure through the perforated drum to convey seeds continuously during the separating process. The air pressure pushes seeds through the drum perforations, enabling continuous conveyance that overcomes the limitation of small receiving areas while maintaining effective separation performance.
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
Enables continuous seed feeding and separation during the sowing process, improving efficiency by utilizing air pressure for both refilling and separation, and allowing for adaptable seed size handling through interchangeable sieves.
Implementation Method 1
the air required to generate the pressure difference for separating the seed grains is used for refilling at the same time
Implementation Method 2
The separating drum 3 has perforations 7 arranged in rows 6 of perforations, which are subjected to a pressure difference compared to atmospheric pressure due to the air supplied via the refill line 5
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The seeder has agricultural seeder separating housing (2) associated with pressure difference separating drum (3). The drum has perforations on which seeds are deposited through seed reservoir area. The constant pressure in separating portion (10) of housing is generated, so that pressure difference is produced at perforations of drum via pneumatic refilling spacer (5) in uninterrupted manner. A sieve partition (16) is arranged between drum and seed reservoir area, for different seed locations against interchangeable screens (17) with various large holes and/or screen openings.