Cable-Suspended Land Leveling for Uneven Paddy Fields
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Solution Overview
Problem
Existing agricultural machinery for stubble burying, puddling, and land leveling face challenges due to uneven terrain, leading to ineffective posture adjustment and limited adaptability, which affects the quality of paddy field leveling and utilization of resources.
Innovation Solution
A combined operation machine with a base rack, auxiliary racks, and a leveling component connected via traction ropes and counterweight blocks, allowing real-time adjustment of the leveling plate's contact state and area based on soil conditions, using intelligent detection technologies for optimal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid suspension is used to connect the land leveler to the tractor, then the connection is stable and simple, but the land leveler swings with terrain changes and cannot adapt to uneven ground
Solution Approach 1:
The patent applies dynamics by replacing the rigid suspension with a dynamic cable suspension system. The cables allow the land leveler to move freely in response to terrain changes while maintaining connection to the tractor, enabling adaptive posture adjustment without sacrificing connection reliability.
Solution Approach 2:
The patent changes the suspension parameter from rigid (fixed distance) to flexible (variable distance), allowing the land leveler to adjust its position and orientation according to terrain variations while remaining connected to the tractor through the cable system.
2Extent of automation
If hydraulic-link mechanism is used for posture adjustment, then the control is automated, but the adjustment lags behind tractor posture changes and cannot synchronize feedback
Solution Approach 1:
The patent replaces the hydraulic-link mechanism with a cable-based mechanical system. This substitution eliminates the hydraulic response delay and provides more immediate mechanical coupling between the tractor and land leveler, reducing feedback lag time while maintaining automated control capabilities.
3Productivity
If the land leveler width is increased to improve coverage, then the productivity increases, but the device complexity and structural requirements increase
Solution Approach 1:
The patent uses flexible cables instead of rigid structural connections to support the widened land leveler. This allows the structure to span greater widths without proportionally increasing structural complexity, as the cables provide necessary support while accommodating terrain variations.
Data Source
AI summary
The present disclosure provides a stubble burying, puddling, and land leveling combined operation machine and an operation method thereof. The operation machine includes a main assembly and an operation assembly. The main assembly includes a base rack, auxiliary racks arranged on the base rack, and rear connectors arranged at a back end of the base rack. A leveling component is arranged on the rear connectors. The operation assembly includes a puddling component and a stubble-burying component both arranged on the base rack. During working, an operator unfolds the auxiliary racks through flippers and uses a tractor to lower the entire operation machine to the ground. The operation machine is pulled by the tractor to move and carry out combined operations of stubble burying, puddling, and land leveling.