Integrated Harvesting and Sowing Machine for Soil Compaction Reduction
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Solution Overview
Problem
The low level of mechanization in rapeseed production leads to high costs and inefficiencies due to the need for multiple passes of agricultural machinery, causing soil compaction and increased operational costs in rapeseed fields, particularly in the Yangtze River Basin where rice-rapeseed rotation is common.
Innovation Solution
A harvesting and sowing integrated compound operation machine is designed, where a stubble cleaning device is mounted below the combine harvester's conveying trough, and topsoil loosening, fertilization, rotary tillage, and sowing devices are rear-mounted, with detection and driving systems to coordinate operations without increasing manual complexity, allowing simultaneous harvesting and sowing while reducing land rolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate agricultural machinery operations are used for rice harvesting followed by rapeseed sowing, then each operation can be performed with dedicated equipment, but the number of land rolling passes increases causing soil compaction and higher operational costs
Solution Approach 1:
The patent combines multiple separate agricultural operations (rice harvesting, stubble cleaning, topsoil loosening, fertilization, rotary tillage, ditching, and rapeseed sowing) into a single integrated compound operation machine. This merging of functions allows all operations to be completed in one pass, eliminating the need for multiple separate machinery passes that cause soil compaction, while ensuring each operation is performed with appropriate dedicated components.
2Reliability
If multiple separate agricultural machinery operations are used for rice harvesting followed by rapeseed sowing, then each operation can be performed with dedicated equipment, but operational costs increase due to multiple passes
Solution Approach 1:
The integrated compound operation machine merges multiple separate operations into one unified system, allowing rice harvesting, stubble cleaning, topsoil loosening, fertilization, rotary tillage, ditching, and rapeseed sowing to be completed in a single field pass. This eliminates the need for multiple separate machinery operations, reducing fuel consumption, labor costs, and time requirements while maintaining the quality of each individual operation through dedicated components.
3Object-affected harmful factors
If a harvesting and sowing integrated compound operation machine is used, then the number of land rolling passes is reduced alleviating soil compaction, but the device complexity increases
Solution Approach 1:
The integrated compound operation machine is designed with modular segmentation, dividing the complex system into distinct functional modules: rice harvesting module, stubble cleaning module, topsoil loosening module, fertilization module, rotary tillage module, ditching module, and rapeseed sowing module. Each module is independently designed and can be selectively engaged or disengaged, managing overall device complexity while maintaining comprehensive functionality.
Solution Approach 2:
The machine employs universal components and mechanisms that serve multiple functions. For example, the power transmission system, hydraulic control system, and chassis structure are designed to support all seven operational modules, reducing the need for separate dedicated systems for each function and thereby managing complexity while achieving multi-functionality.
4Productivity
If all operations are performed simultaneously in one pass, then operational efficiency increases and soil compaction is reduced, but the coordination control becomes more complex
Solution Approach 1:
The control system incorporates feedback mechanisms that monitor the operational status of each module (rice harvesting, stubble cleaning, topsoil loosening, fertilization, rotary tillage, ditching, and rapeseed sowing) and automatically adjust power distribution and operational parameters. This feedback control ensures coordinated operation of all modules in real-time, maintaining operational efficiency while managing control complexity through automated regulation.
Data Source
AI summary
A harvesting and sowing integrated compound operation machine, including a combine harvester, a stubble cleaning device, a topsoil loosening device, a fertilization device, a rotary tillage and ditching device, a sowing device, a detection device, a first driving device, a second driving device and a control device, wherein the stubble cleaning device is mounted below a header of the combine harvester; and the topsoil loosening device, the fertilization device, the rotary tillage and ditching device and the sowing device are mounted at a rear of a chassis of the combine harvester.