Foldable Subsoiler Frame With Unified Hydraulics for Compact Transport
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Solution Overview
Problem
Existing agricultural subsoilers face limitations in road transport due to excessive size in folded configurations and inadequate folding mechanisms, particularly those with three-section frames, which exceed the maximum allowed dimensions for road traffic, and lack effective hydraulic or hydropneumatic systems for tool retraction and obstacle navigation.
Innovation Solution
Agricultural machine with a foldable frame and hydraulic system featuring double-acting check valves, mechanical stops, and a single hydraulic system for tool retraction, obstacle navigation, and folding, allowing compact transport and adjustable working depth and inclination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a three-section frame structure is used to manage high work areas, then the work area coverage is improved, but the folded configuration exceeds the maximum allowed dimensions for road transport
Solution Approach 1:
The frame is divided into multiple telescopic sections (first section, second section, third section) that can be segmented and stored in a compact folded configuration. Each section can be independently controlled to achieve compact storage while maintaining full extension capability for large work areas, resolving the contradiction between work area coverage and transport dimension constraints.
Solution Approach 2:
The telescopic sections are designed to nest within each other when folded, with the second section storing in the first section and the third section storing in the second section. This nesting arrangement allows the multi-section frame to achieve a compact folded configuration that meets road transport dimension limits while preserving the ability to extend to large work areas.
2Device complexity
If traditional ploughs are used for soil processing, then the equipment simplicity is maintained, but the functional efficiency and surface finishing capability are insufficient
Solution Approach 1:
The agricultural machine is designed with multiple tools (subsoilers, cultivators, harrows) that can be selectively engaged or disengaged based on operational needs. This multi-functionality allows a single machine to perform various soil processing tasks with different efficiency requirements, improving overall productivity while maintaining reasonable complexity through modular tool design.
3Area of stationary object
If the number of sections in the frame is increased to cover larger work areas, then the work area coverage is improved, but the folding mechanism complexity and transport compactness are compromised
Solution Approach 1:
The folding mechanism incorporates hydraulic actuators that dynamically control the telescopic sections, allowing automatic adjustment between extended and folded configurations. This dynamic control reduces the mechanical complexity that would otherwise be required for manual or mechanical folding of multiple sections, while enabling the frame to achieve compact folded dimensions despite having multiple sections for large work area coverage.
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
Enables efficient soil processing across varying work areas while ensuring compact transportability and safety by minimizing dimensions during road transport and overcoming obstacles using a unified hydraulic system.
Implementation Method 1
a single hydraulic system, which allows the retraction of the tools, the lifting thereof in the presence of obstacles and the folding of the agricultural apparatus transported by the machine itself
Implementation Method 2
an agricultural machine with a hydraulic or hydropneumatic damping system to allow users to overcome obstacles
Data Source
Figure 1A~1C
Figure 2A~2D
Figure 2E
AI summary
An agricultural processing machine (100) comprising a tractor and a subsoiler (100), wherein the subsoiler (100) includes a foldable frame (1), tractor coupling elements and tools or shanks (10) for processing the soil. A single hydraulic system (5) is used with a damping function for the retraction of the tools (10) in the event of encountering an obstacle in the soil, with a movement function of the tools (10) for adjusting the working depth, with a movement function of the side portions of the frame (1) and with a closing function of all the tools (10) to reduce the road dimensions during transport. The hydraulic system (5) comprises double-acting cylinders (4A, 4B), comprising an upper chamber (12) and a lower chamber (12) and designed so as to retract, partially or totally, the tools (10), in the event of an obstacle or load.