Adjustable Trench Cutter Diagonal Wheel Configuration
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Solution Overview
Problem
Existing milling devices lack versatility and reliability in creating diverse and complex trench structures, particularly in handling hard ground materials and preventing soil material web accumulation between cutting wheels.
Innovation Solution
A milling device with an adjustable first cutting wheel arrangement that can be diagonally adjusted relative to a second cutting wheel arrangement via a four-bar linkage, allowing for a curved path and increased load capacity, combined with a guide device for precise trench creation and soil material conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the first cutting wheel arrangement is made fixed relative to the cutting frame, then the device complexity is reduced, but the adaptability and versatility are limited
Solution Approach 1:
The first cutting wheel arrangement is made dynamically adjustable relative to the cutting frame through a adjusting device that enables diagonal movement. This allows the cutting wheel arrangement to change its position and orientation during operation, providing adaptability for creating diverse trench structures while maintaining a relatively simple mechanical linkage-based adjustment mechanism rather than a complex automated system.
2Reliability
If the first cutting wheel arrangement is adjusted diagonally below the second cutting wheel arrangement, then the versatility and reliability are improved, but the device complexity increases
Solution Approach 1:
The adjusting device creates an asymmetric diagonal adjustment path for the first cutting wheel arrangement relative to the second cutting wheel arrangement. This asymmetric positioning allows the first cutting wheel arrangement to engage hard ground materials at optimized angles while the linkage mechanism maintains structural simplicity through parallel links and a four-bar coupling mechanism.
Solution Approach 2:
The adjusting device enables the first cutting wheel arrangement to follow a curved adjustment path as it moves diagonally below the second cutting wheel arrangement. This curved motion trajectory allows for smooth transitions and optimized engagement with hard ground materials while the underlying four-bar linkage mechanism remains mechanically simple and reliable.
3Strength
If the cutting wheel arrangements are positioned to overlap cutting cross-sections, then the load capacity for hard ground materials is increased, but the risk of soil material accumulation between wheels increases
Solution Approach 1:
The first cutting wheel arrangement is dynamically adjustable to optimize the overlap between cutting cross-sections of the first and second cutting wheel arrangements. By enabling diagonal adjustment, the system can dynamically optimize the cutting pattern to achieve sufficient overlap for handling hard ground materials while maintaining adequate clearance to prevent soil material accumulation and web formation between the wheels.
Data Source
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AI summary
The invention relates to a milling device for creating vertically extending slots in the ground, comprising a trench cutter which has a milling frame, a first milling wheel assembly and a second milling wheel assembly, wherein the milling wheel assemblies for removing soil material below the milling frame are arranged adjacent to one another on the underside of the milling frame. The invention is characterized in that the trench cutter has an adjustment device with which the first milling wheel assembly can be adjusted in a direction obliquely below the second milling wheel assembly.