Independent Pump Segmentation for Slope Manure Distribution
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Solution Overview
Problem
Conventional agricultural vehicle manure conveying arrangements face issues with pressure increase due to abrasive ingredients in liquid manure, leading to increased wear and maintenance needs, and difficulties in precise application on slopes, resulting in deviations from target manure distribution.
Innovation Solution
The design incorporates two independently switchable pumps and directional control valves, allowing for independent pressurization of each distributor head and optional circulation mode, along with tubular longitudinal beams with corrosion-resistant coatings, to manage pressure and ensure precise manure distribution across slopes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the cross section of the tubular frame is increased to counteract pressure increase from powerful pump devices, then the pressure in the delivery arrangement is reduced, but the dead weight of the vehicle increases
Solution Approach 1:
The conveying arrangement is divided into multiple independent pressure lines, each with its own pump and directional control valve. This segmentation allows pressure to be managed locally in each zone rather than requiring the entire frame to handle maximum pressure, enabling lighter frame construction while maintaining pressure control.
Solution Approach 2:
The system uses independently switchable directional control valves that can dynamically route manure flow between different pressure lines based on operational requirements. This dynamic control allows the system to optimize pressure distribution and reduce peak pressures in individual lines, reducing the need for oversized frame sections.
2Productivity
If multiple distributor heads are used for larger working widths, then the productivity is improved, but the complexity of the conveying arrangement increases
Solution Approach 1:
The conveying arrangement is divided into multiple independent pressure lines, each serving a specific distributor head. Each pressure line has its own pump and directional control valve, allowing independent operation and control of each distributor head. This segmentation enables the system to handle multiple distributor heads without requiring a single complex centralized control system.
Solution Approach 2:
The directional control valves are designed to perform multiple functions: they can route manure to different distributor heads, enable circulation mode, and control flow direction based on operational requirements. This multi-functionality reduces the need for separate control mechanisms for each distributor head, simplifying the overall system.
3Productivity
If the system operates on slopes, then the productivity is maintained, but the distribution precision deteriorates due to pressure differences between downhill and uphill distributor heads
Solution Approach 1:
The system divides the conveying arrangement into multiple independent pressure lines, each with its own directional control valve upstream of the distributor heads. This segmentation allows independent pressure control for each distributor head, enabling compensation for gravitational pressure differences on slopes and ensuring uniform manure distribution across uphill and downhill positions.
Solution Approach 2:
The independently switchable directional control valves allow the system to monitor and adjust pressure distribution in real-time. By controlling the flow direction and pressure in each pressure line independently, the system can compensate for slope-induced pressure variations and maintain precise manure application rates across different elevations.
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
This solution enables precise dosing and application of liquid manure, reduces wear, and maintains consistent distribution volumes across slopes, while reducing the vehicle's dead weight and enhancing off-road mobility.
Implementation Method 1
a pressure line for conveying the liquid manure from the tank to a distributor
Implementation Method 2
at least two distributor heads for spreading the fertilizer on an agricultural area
Data Source
AI summary
The arrangement (1) has a tubular frame with longitudinal beams (10, 11) and cross beams, serving as a tank (2). The longitudinal beams are designed for conveying of fertilizer. A tank is filled with the fertilizer and supported by the tank. Two distributor heads (14, 15) apply the fertilizer on a farm area. Two pumps (6, 7) e.g. rotary piston pumps, the longitudinal beams that are formed as pressure lines and two way valves (12, 13) e.g. 3/2 valves, are provided upstream to the distributor heads. The control valves are switched independent of each other.