Agricultural Implement Carrier Lifting Carriage Stabilization
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Solution Overview
Problem
Current agricultural implements lack the necessary precision and lateral stability to effectively control weeds between crop rows during planting and cultivation, leading to inefficiencies in seed placement and fertilizer distribution, which affects early crop growth and weed suppression.
Innovation Solution
A self-propelled tool carrier with a lifting carriage, stabilizing legs, and independent steering servos allows for precise control and stabilization of the tool bar, enabling accurate placement of seeds and fertilizers while maintaining lateral stability and allowing for automatic steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional three-point hitch assembly is used to connect tool bar to tool carrier, then the equipment structure is simple and easy to operate, but the tool bar lacks lateral stability and cannot maintain precise positioning during operation
Solution Approach 1:
The hitch assembly is segmented into multiple functional components: a rigid frame structure provides the base, a lifting mechanism with hydraulic cylinder handles vertical adjustment, and a lateral stabilization system with adjustable stabilizers handles side-to-side positioning. This segmentation allows each component to specialize in one function, achieving high positioning accuracy without requiring an overly complex integrated system.
Solution Approach 2:
The hitch assembly is designed as a multi-functional universal system that can accommodate different tool bar configurations and agricultural implements. The rigid frame serves as both structural support and mounting platform, the lifting mechanism provides both elevation control and force transmission, and the stabilizers offer both lateral restraint and adjustable positioning. This multi-functionality reduces the need for separate specialized components.
2Manufacturing precision
If non-rigid lift arms and control links are used between tool bar and tool carrier, then the equipment is easier to manufacture and assemble, but the tool bar moves laterally during operation reducing weed control accuracy
Solution Approach 1:
The connection system employs local quality differentiation: rigid connections are used where lateral stability is critical (frame to lifting mechanism, lifting mechanism to tool bar), while flexible joints are used where motion accommodation is needed (hydraulic cylinder mounting points, stabilizer adjustment mechanisms). This localized application of rigidity versus flexibility optimizes both manufacturing ease and operational stability.
3Manufacturing precision
If conventional planting and cultivating equipment is used with current tool carrier, then the equipment can operate at standard speeds, but the accuracy of seed placement and fertilizer positioning cannot achieve plus or minus one inch precision
Solution Approach 1:
The system incorporates feedback mechanisms through the rigid hitch assembly that continuously maintains the tool bar in the correct positional relationship with the carrier. The stabilizers provide real-time lateral restraint, and the lifting mechanism with hydraulic control offers precise elevation feedback, ensuring that seed and fertilizer placement equipment maintains within one inch accuracy while operating at standard field speeds of 4.5 to 6.0 miles per hour.
Data Source
AI summary
A self-propelled agricultural tool carrier has a lifting carriage mounted between the front and rear sets of wheels. A tool bar adapter is mounted to the lifting carriage below the frame for connection to a tool bar that supports planting and cultivating equipment. Laterally spaced-apart stabilizing legs are rigidly mounted to the frame and extend downward along opposite sides of the lifting carriage. The tool bar has a pair of braces, each of which engages a support member on a lower portion of each of the stabilizing legs to restrain the tool bar against lateral movement. Causing the carriage to lift raises the tool bar and disengages the braces from the support members.