Seed Distribution Housing With Auxiliary Airflow Against Blockage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing seed distribution devices in seed drills suffer from limited control over seed flows, leading to material deposits and blockages, which result in inadequate sowing results such as gaps or interrupted rows on agricultural land.
Innovation Solution
The distribution device employs separate conveying and auxiliary airflows, with adjustable flow control mechanisms to prevent material deposits and enhance flow control, using a distribution device with a flow dividing system and independent airflow adjustment for each path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conveying air flows are adjusted by controlling blower power to adapt seed flows, then seed flow control is achieved, but material deposits and blockages occur in pipes and channels
Solution Approach 1:
The air flow system is segmented into two independent channels: a conveying air channel for transporting seeds and an auxiliary air channel for preventing deposits. This segmentation allows each channel to be optimized for its specific function without interference, enabling precise seed flow control while preventing material deposits through the separate auxiliary air flow.
Solution Approach 2:
The auxiliary air channel acts as an intermediary mechanism that introduces additional air flow into the material flow lines to prevent seed deposits and blockages. This intermediary air flow does not directly transport seeds but mediates by keeping the conveying channels clear, thus preventing the harmful effect of material deposits while allowing the conveying air to perform its primary function.
2Reliability
If additional air flow is introduced into material flow lines to prevent deposits, then material deposits are prevented, but device complexity increases
Solution Approach 1:
The auxiliary air channel and conveying air channel are merged into a single integrated airflow system within the distribution device. Both channels share common components such as the blower unit and housing structure, which reduces the overall complexity compared to having completely separate systems. The merging allows for compact design while maintaining the functional separation needed for deposit prevention.
3Reliability
If separate conveying and auxiliary airflows are used, then material deposits are prevented, but airflow control complexity increases
Solution Approach 1:
The airflow control system incorporates dynamic elements including adjustable flow control devices and variable speed blowers that can adapt the air flow rates in real-time. This dynamic control allows the system to optimize seed flow and auxiliary air flow independently based on operating conditions, preventing material deposits while managing complexity through intelligent rather than purely mechanical control.
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 design prevents material deposits and blockages, ensuring precise seed distribution and uniform sowing patterns by accelerating seed flow and maintaining airflow integrity.
Implementation Method 1
one or more material flow lines can be supplied with additional air, thereby increasing the flow velocity within the one or more material flow lines and accelerating the granular material within them
Implementation Method 2
the seed is fed to a seed receiving area, where the seed entering the distribution housing through the material inlet opening is introduced into several conveying air streams. The conveying air streams loaded with seed are then routed out of the distribution housing of the distribution device via several material flow lines
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a distribution device (10) for granular material, in particular seed, having: a distributor housing (24) which has a material inlet opening (16) for the granular material; at least one conveying air duct (26a, 26b), situated in the distributor housing (24), for a material-free conveying air flow, the conveying air duct (26a, 26b) being connected within the distributor housing (24) to a grain-holding region (30, 30a, 30b) within which the granular material entering the distributor housing (24) via the material inlet opening (16) can be introduced into the material-free conveying air flow; one or more material flow lines (18a, 18b, 32, 32a, 32b), which adjoin the grain-holding region (30, 30a, 30b), for the conveying air flow laden with granular material; and at least one additional air duct (34), which is situated in the distributor housing (24), for a material-free additional air flow, which can be introduced into the one or more material flow lines (18a, 18b, 32, 32a, 32b) via at least one additional air inlet (38a, 38b).