Hydraulic Frame Force Control for Consistent Tillage Depth
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Solution Overview
Problem
Existing agricultural tillage implements experience unbalanced forces that cause variations in the penetration depth of disc blades, leading to inconsistent soil tillage effectiveness.
Innovation Solution
A hydraulic control system that adjusts the pressure of hydraulic fluid to the tilt cylinder based on the pressure of the rolling basket cylinder, maintaining consistent penetration depth of disc blades by controlling the frame force applied to the tool frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tillage implement traverses uneven terrain, then the forces acting on disc blades become unbalanced, but this causes variations in penetration depth and reduces tillage effectiveness
Solution Approach 1:
The hydraulic control system continuously monitors the actual penetration depth of disc blades through sensors and compares it with the target depth. When deviations are detected due to uneven terrain, the system automatically adjusts the tilt angle of the tool frame via hydraulic actuators to restore the correct penetration depth, creating a closed-loop feedback control mechanism that maintains tillage precision despite terrain variations
Solution Approach 2:
The system dynamically adjusts the tilt angle of the tool frame in real-time based on terrain conditions and measured penetration depth. Rather than maintaining a fixed geometry, the hydraulic control system continuously modifies the relative position of the tool frame to the chassis, enabling the tillage implement to adapt its configuration to maintain consistent disc blade penetration depth across varying terrain conditions
2Manufacturing precision
If the hydraulic control system continuously adjusts pressure to maintain consistent penetration depth, then tillage effectiveness is improved, but the system complexity increases
Solution Approach 1:
The hydraulic control system integrates multiple functions into a single integrated platform: it simultaneously controls the tilt angle of the tool frame, regulates disc blade penetration depth, monitors terrain conditions, and manages hydraulic fluid distribution. This multi-functional integration reduces the need for separate mechanical adjustment mechanisms and simplifies the overall system architecture while maintaining precise penetration depth control
Solution Approach 2:
The system replaces complex mechanical adjustment mechanisms with hydraulic control. Instead of using mechanical linkages, levers, and manual adjustment devices to control tool frame tilt and disc blade depth, the invention uses hydraulic actuators and electronic control systems that can achieve the same functions with fewer moving parts, reduced maintenance requirements, and improved precision
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
The system ensures consistent soil tillage depth, enhancing the effectiveness of tillage operations by maintaining contact between the rolling basket and wheels with the soil, even on uneven terrain.
Implementation Method 1
a hydraulic circuit configured to control a pressure of a hydraulic fluid within a first end of a frame force cylinder based on a pressure of the hydraulic fluid within the first end of the gauge device cylinder
Data Source
AI summary
A hydraulic control system for an agricultural implement includes a hydraulic circuit configured to receive hydraulic fluid from a first end of a gauge device cylinder. The gauge device cylinder is configured to couple to a tool frame of the agricultural implement and to a gauge device frame of the agricultural implement. Furthermore, the hydraulic circuit is configured to control a pressure of the hydraulic fluid within a first end of a frame force cylinder based on a pressure of the hydraulic fluid within the first end of the gauge device cylinder. The frame force cylinder is configured to couple to the tool frame, and the frame force cylinder is configured to apply a frame force to the tool frame.