Soil Cultivation Device Rear Chassis Positioning
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Solution Overview
Problem
Soil cultivation devices with integrated chassis for depth control often result in unstable driving behavior and soil compaction, which impairs natural frost formation during winter, due to the forward positioning of the chassis, leading to low or negative vertical loads on the drawbar and compaction of soil tracks.
Innovation Solution
The chassis is positioned as far back as possible within the cultivator tine field, with loosening tines placed behind the chassis to reverse soil compaction in its track, ensuring stable driving behavior without affecting natural frost formation, and a height-adjustable or pivotable design allows the chassis to lift off the ground, distributing load to a trailing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chassis is positioned forward in the machine for depth control, then depth control capability is improved, but driving stability deteriorates due to low or negative vertical loads on the drawbar
Solution Approach 1:
The patent moves the chassis from a forward position (affecting longitudinal stability) to a rearward position near the trailing roller (affecting vertical load distribution). This spatial repositioning in the longitudinal dimension resolves the contradiction by placing the chassis where it can provide depth control while maintaining proper drawbar loading for stable towing operation.
2Ease of operation
If the chassis is positioned forward in the machine, then depth control is achieved, but soil compaction increases in the travel tracks
Solution Approach 1:
The patent extracts the chassis from the forward position within the cultivator tine field and relocates it to the rearward position near the trailing roller. This separation removes the source of track compaction from the critical soil working area, allowing the cultivator tines to work the soil without the chassis wheels compacting the same zones.
3Object-generated harmful factors
If the chassis is positioned rearward near the trailing roller, then soil compaction is reduced, but depth control capability is lost
Solution Approach 1:
The patent makes the trailing roller serve multiple functions: it acts as both a soil compaction prevention element (by being positioned where it doesn't compact working zones) and a depth control reference (by providing a rearward pivot point for the chassis). The chassis in this rearward position can control the working depth of the cultivator tines while the trailing roller maintains proper soil structure.
4Stability of the object's composition
If ballast weights are added to the front area to improve driving stability, then driving stability is improved, but fuel consumption increases and soil compaction worsens
Solution Approach 1:
The patent converts the potential harm of additional weight (ballast) into a benefit by using the existing chassis weight, properly positioned rearward, to provide both depth control and adequate drawbar loading for stable towing. This eliminates the need for separate ballast weights, avoiding the penalties of increased fuel consumption and additional soil compaction while maintaining driving stability.
Data Source
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AI summary
The present invention relates to a soil cultivation implement for mounting on a tractor, comprising a machine frame on which several soil cultivation tools, in particular cultivator tines, are mounted in preferably several rows, and a chassis that is arranged between and/or adjacent to the soil cultivation tools on the machine frame, wherein the chassis has a soil cultivation position for depth control of the soil cultivation tools. According to the invention, loosening tines are provided behind the chassis in its track in the direction of travel for loosening the soil in the track compacted by the chassis.