Modular Diaphragm Wall Cutter Drive for Slot Width Adjustment
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Solution Overview
Problem
Existing trench wall cutters face challenges in efficiently producing different slot widths due to increased tilting moments and reduced service life of pivot bearings and milling wheel drives when trying to increase milling slot width, requiring costly upgrades and increased maintenance for larger diaphragm wall widths.
Innovation Solution
A modular trench wall cutter design with detachable cutting wheel drive modules and adapter modules that allow for easy adjustment of milling wheel width, ensuring central loading of forces and minimizing transverse and tilting forces, using interchangeable milling wheel drive modules and adapter modules with adjustable axial width and damping elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If larger cutting wheels with larger axial width are used to increase slot width, then the milling slot width is improved, but the tilting moment on the milling wheel drive and pivot bearing arrangement increases, reducing service life
Solution Approach 1:
The system is divided into modular components: a first module comprising a milling wheel drive and a second module comprising a pivot bearing arrangement. These separate modules can be independently optimized and positioned to maintain central loading even when larger milling wheels are used, preventing increased tilting moments from compromising reliability.
Solution Approach 2:
An intermediary component (such as a adjustable support structure or positioning mechanism) is introduced between the milling wheel drive and the pivot bearing arrangement. This intermediary allows for flexible positioning that maintains optimal load distribution and central alignment, preventing excessive tilting moments while accommodating larger milling wheel widths.
2Length of moving object
If larger diaphragm wall cutters with differently constructed cutting wheel drives are used for larger slot widths, then the milling slot width is improved, but the investment cost and maintenance effort increase
Solution Approach 1:
The milling wheel drive module and pivot bearing arrangement module are designed as universal, interchangeable components that can be used across different milling slot width configurations. This modularity allows a single set of components to serve multiple functions and applications, reducing the need for entirely different constructions for larger slot widths and thereby lowering investment costs and maintenance requirements.
Solution Approach 2:
The system incorporates adjustable or reconfigurable elements that allow the same basic modular components to adapt to different milling slot width requirements. This dynamic reconfigurability eliminates the need for completely different constructions for larger applications, reducing device complexity and long-term maintenance effort while maintaining the capability to produce various slot widths.
Data Source
AI summary
The invention relates to a diaphragm wall cutter with at least one bearing plate, a central drive shaft arranged in the bearing plate, at least two cutter wheel drives, each arranged on one side of the bearing plate and driven by the central drive shaft, and at least two cutter wheels, each mounted on a cutter wheel drive and rotatably driven by it. According to the invention, the cutter wheel drives are each designed as a detachable cutter wheel drive module, and an adapter module is arranged between the bearing plate and each cutter wheel drive module, which is detachable and interchangeable for adapting to different cutter wheel widths.