Agricultural Implement Frame Synchronization Control
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Solution Overview
Problem
Existing agricultural implements face challenges in efficiently folding and extending wing sections while maintaining row unit alignment and preventing contact with the center section or frame, especially when operating on uneven terrain.
Innovation Solution
The agricultural implement incorporates a control system with sensors and actuators to adjust the position of intermediate and wing frame sections relative to the center frame section, ensuring synchronous folding and extension while maintaining parallel alignment and preventing contact between row units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wing sections are folded to transport the planter along roads, then the working width is reduced and transportability is improved, but the complexity of the folding mechanism increases
Solution Approach 1:
The planter frame is divided into multiple sections (center section, intermediate sections, wing sections) that can be folded independently. Each section is connected through pivot points, allowing the wing sections to be raised or lowered relative to the center section for transport or operation modes.
Solution Approach 2:
The folding mechanism uses hydraulic actuators and linkages to enable dynamic adjustment of the wing sections between operational and transport positions. The system transitions from a static structure to a dynamically adjustable configuration, allowing the planter to adapt between wide working width during operation and compact configuration during transport.
2Reliability
If row units are spaced at minimum distance to prevent contact, then the risk of mechanical interference is reduced, but the planting density and productivity are limited
Solution Approach 1:
The system dynamically adjusts the spacing between row units through the folding mechanism. During operation, the wing sections are positioned to maintain optimal spacing and alignment with the center section, preventing mechanical contact while maximizing planting density. The hydraulic actuators control the precise positioning of row units to avoid interference.
Solution Approach 2:
Sensors detect the position and status of row units and provide feedback to the control system. The control system uses this information to adjust the folding mechanism and actuator positioning, ensuring that row units maintain safe distances from each other and from the frame while optimizing planting density.
3Ease of operation
If linkages and rephasing cylinders are used to facilitate synchronous folding, then the coordination between sections is improved, but the device complexity and cost increase
Solution Approach 1:
The synchronization system is segmented into independent control channels for each section. The control system manages the center section, intermediate sections, and wing sections separately, allowing precise control of each segment's folding motion while maintaining overall coordination.
Solution Approach 2:
The system replaces complex mechanical linkages and rephasing cylinders with electronic control systems. Hydraulic actuators are controlled by electronic sensors and control algorithms that coordinate the folding motion of different sections, eliminating the need for complex mechanical synchronization mechanisms while maintaining precise coordination.
4Adaptability or versatility
If the planter operates on uneven terrain, then the versatility and adaptability are improved, but the alignment of row units and risk of contact increase
Solution Approach 1:
The planter employs dynamic adjustment mechanisms including hydraulic actuators and sensors that continuously monitor and adjust row unit positions in response to terrain variations. The system adapts to uneven terrain by dynamically repositioning row units to maintain proper alignment and spacing, preventing contact with the frame and other sections while operating on varied terrain.
Data Source
AI summary
An agricultural implement includes a frame including a center frame section, an intermediate frame section, and a wing frame section. A first actuator is operably coupled to the center frame section and the intermediate frame section, and a second actuator is operably coupled to the wing frame section and the intermediate frame section. A first sensor is configured to sense a position of the intermediate frame section relative to the center frame section, and a second sensor is configured to sense a position of the wing frame section relative to the intermediate frame section. A control system is configured to control the first actuator and the second actuator to adjust the position of the intermediate frame section based at least in part on the sensed position of the intermediate frame section relative to the center frame section. Related methods and control systems are also disclosed.