Soil Shaping Assembly for Precision Hoe Opener Depth Control
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Solution Overview
Problem
Existing ground engaging implements, such as tillers and seeders, face challenges in achieving an optimal soil finish for germination due to inadequate soil flow into the seeding valley, which reduces seeding efficiency and compromises depth control.
Innovation Solution
A precision hoe opener assembly with a soil shaping assembly positioned between the ground engaging tool and packer wheel, allowing for controlled soil direction and packing, ensuring optimal soil conditions for seed growth by minimizing the distance between the packer wheel and opener, and utilizing a hydraulic or pneumatic actuator for depth adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the packer wheel is positioned rearward to enable soil to flow into the valley, then soil flow into the valley is improved, but depth control of the ground opener is reduced
Solution Approach 1:
A soil shaping assembly is introduced as an intermediary component between the ground opener and the packer wheel. This assembly includes soil directing members that actively guide and shape the soil flow into the valley, ensuring adequate soil placement without requiring the packer wheel to be positioned far rearward. The intermediary soil shaping assembly resolves the contradiction by providing the necessary soil flow while maintaining close proximity between the packer wheel and ground opener for precise depth control.
2Manufacturing precision
If the packer wheel is positioned close to the ground opener for depth control, then depth control is improved, but soil flow into the valley is reduced
Solution Approach 1:
The soil shaping assembly performs preliminary action by pre-shaping and directing soil into the valley before the packer wheel arrives. The soil directing members actively guide soil flow into the desired configuration in advance, ensuring that adequate soil is in place for optimal seeding conditions while the packer wheel remains positioned close to the ground opener for maintaining depth control.
3Productivity
If the packer wheel is positioned rearward to allow soil flow, then seeding efficiency is improved, but the uneven finish of the soil is not optimal for germination
Solution Approach 1:
The soil shaping assembly acts as an intermediary that simultaneously addresses both soil flow and surface uniformity. The soil directing members are configured to guide soil into the valley while also shaping and leveling the soil surface, ensuring both adequate soil quantity for seeding efficiency and a uniform finish optimal for germination, without requiring the packer wheel to be positioned rearward.
Solution Approach 2:
The soil shaping assembly modifies the physical parameters of soil flow by changing the angle and direction of soil movement through its directing members. This parameter change enables soil to be effectively directed into the valley and properly shaped, achieving both sufficient soil flow for seeding efficiency and a uniform soil surface finish for optimal germination conditions.
Data Source
AI summary
In an embodiment, an agricultural implement includes a frame configured to couple to a tool bar, a parallel linkage coupled to the frame and a ground engaging tool extending from a shank, where the shank is coupled to the parallel linkage. The agricultural implement also includes a packer wheel configured to control a depth of a valley opened in a soil region by the ground engaging tool and is configured to pack the soil region as the implement is towed through a field and a soil shaping assembly disposed between the ground engaging tool and the packer wheel, wherein the soil shaping assembly is configured to close the valley prior to packing by the packer wheel.