Seed Drill Metering Housing with Intermediate Wall
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Solution Overview
Problem
Existing seed drills face malfunctions due to foreign bodies getting trapped between metering wheels, leading to incomplete separation and material flow issues.
Innovation Solution
The introduction of an intermediate wall between normal and fine metering wheels, along with a two-part base plate design and independent shut-off slides, ensures complete separation and independent operation of each dosing wheel system, allowing for adjustable and removable configurations to prevent trapping and ensure trouble-free material application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single base plate is used for both normal and fine metering wheels, then the device structure is simpler, but foreign bodies can get trapped between the metering wheels causing malfunctions
Solution Approach 1:
The base plate is divided into two separate parts: a first base plate for the normal metering wheel and a second base plate for the fine metering wheel. This segmentation prevents foreign bodies from being trapped between the metering wheels while maintaining structural simplicity through modular design.
2Area of stationary object
If normal and fine metering wheels are arranged close together to save space, then the device is more compact, but foreign bodies can get trapped between them
Solution Approach 1:
An intermediate wall is introduced between the normal and fine metering wheels as a mediator structure. This wall prevents foreign bodies from being trapped between the wheels while allowing the metering wheels to be arranged in a compact configuration within the housing.
3Device complexity
If a single shut-off slide is used for both metering wheels, then the control mechanism is simpler, but independent operation of each dosing wheel cannot be achieved
Solution Approach 1:
The shut-off mechanism is segmented into two independent shut-off slides: a first shut-off slide for the normal metering wheel and a second shut-off slide for the fine metering wheel. This allows each dosing wheel to be independently controlled and selectively shut off from the material output.
4Measurement precision
If dosing wheels of different widths are used, then the dosing precision can be optimized, but the base plate must accommodate varying widths
Solution Approach 1:
The base plate is segmented into separate first and second base plates, each optimized for its corresponding dosing wheel width. This allows dosing wheels of different widths to be used for optimized dosing precision while simplifying the overall configuration by eliminating the need for a single complex adjustable base plate.
Data Source
Figure 1
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Figure 4~5
AI summary
Seed drill for spreading seed, fertilizer and the like, comprising a storage container (1), distribution and/or application devices, and a metering device (2) arranged between the storage container and the distribution and/or application devices, which has several metering wheels arranged side by side and in metering housings (4) designed as normal (5) and/or fine metering wheels (6), which supply the seed, fertilizer and the like located in the storage container to the distribution and/or application devices in adjustable quantities, wherein at least one preferably adjustable base plate (12, 13) associated with the metering wheels is arranged below the metering wheels (5, 6).In order to ensure trouble-free dispensing of the material to be dispensed by the normal and/or fine metering wheels arranged in a metering housing, it is provided that an intermediate wall (15) is arranged on the metering housing (4) between the respective normal metering wheel (5) and the respective associated fine metering wheel (6), that the base plate assigned to the metering wheels is designed in two parts, that one base plate (12) is assigned to the normal metering wheel (5) and the other base plate (13) to the fine metering wheel (6).