Seed Drill Unit Control via On-Board Switching Elements
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Solution Overview
Problem
Existing seed drills for precision sowing require significant manual effort to activate and deactivate individual sowing units, especially for maintenance and inspection, as the control units are typically located in the tractor's cab, making it cumbersome and time-consuming.
Innovation Solution
A seed drill design with independently controllable sowing units, featuring an electric motor-driven dosing device and a manually accessible switching element on each unit, allowing for direct activation or deactivation of drive motors without needing to access the tractor's cab, along with optional remote control via radio or infrared signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control units are located in the tractor's cab, then centralized control is achieved, but manual effort and time required for activating/deactivating individual sowing units increases
Solution Approach 1:
The control system is segmented by placing individual switching elements directly on each sowing unit rather than having a single centralized control point. This allows the operator to independently control each sowing unit from the field, significantly reducing the time and manual effort required for activation and deactivation during maintenance and inspection operations.
Solution Approach 2:
The control interface is moved from the vertical dimension (tractor cab above ground) to the horizontal dimension (control elements distributed along the sowing mechanism at ground level). This dimensional shift allows the operator to access controls while standing beside the machine rather than climbing into the cab, improving accessibility and reducing operational time.
2Adaptability or versatility
If manual separation of shaft connection is used, then individual sowing units can be switched off, but manual work requirement increases
Solution Approach 1:
The manual mechanical separation of shaft connections is replaced with electric motor-driven dosing devices controlled by electric switching elements. This substitution eliminates the need for manual mechanical intervention while maintaining the ability to individually switch off sowing units, significantly reducing the manual work requirement.
Solution Approach 2:
Each sowing unit is equipped with its own switching element and motorized dosing device, enabling the unit to be activated or deactivated independently without requiring manual intervention on other units. This self-service capability allows operators to quickly adjust individual units as needed without complex manual procedures.
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 easier and faster inspection and maintenance of sowing units by allowing operators to activate or deactivate individual units directly on the field, reducing the need for manual intervention and improving operational efficiency.
Implementation Method 1
electric motor-operated dosing device for the individual dispensing of seed grains
Implementation Method 2
manually accessible switching element on each unit, allowing for direct activation or deactivation of drive motors
Data Source
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AI summary
The sowing machine has a seed storage container and a sowing unit (7) supplied from the seed storage container and arranged at a support frame. The sowing unit has an electromotor operated dosing device (12) for individual releasing of seeds. A switching element (11) for manually controlled activation of a drive motor (13) is arranged at the sowing unit or spatially close to the sowing unit. The switching element is a tilt-, pressure- or push-button. An independent claim is also included for a method for controlling a dosing device of a sowing machine for precision drilling.