Monolithic Cutting Tooth Mounting for Closer Tooth Spacing
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Solution Overview
Problem
Existing trenching machines with weld-on block mounting systems for cutting teeth have limited tooth spacing, leading to material wedging and undesired trench widening due to gaps between teeth, which complicates the trench cutting process.
Innovation Solution
A monolithic cutting tooth mounting system with integrally formed tooth pockets and substrates allows for closer tooth spacing and reduced gaps, using a hardened steel alloy substrate with a curved outer surface to minimize material adherence and improve cutting efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If weld-on block mounting systems are used for cutting teeth, then the mounting structure is simple and easy to manufacture, but the tooth spacing is limited and gaps between teeth cause material wedging and trench widening
Solution Approach 1:
The patent merges the mounting substrate and tooth pockets into a single monolithic structure made of hardened steel alloy. This integration eliminates the need for separate mounting blocks and welds, allowing teeth to be spaced closer together without material wedging issues, while maintaining manufacturing simplicity through integral forming processes
Solution Approach 2:
The monolithic substrate is segmented with multiple precisely-formed tooth pockets that allow individual cutting teeth to be positioned at optimized intervals. This segmentation enables close tooth spacing while maintaining the structural integrity of the overall mounting system, preventing material from wedging between teeth
2Reliability
If closer tooth spacing is implemented, then material trapping and trench widening are reduced, but the mounting system complexity increases
Solution Approach 1:
By combining the mounting substrate and tooth pockets into one monolithic hardened steel alloy structure, the system achieves close tooth spacing that prevents material trapping and trench widening, while avoiding the complexity of assembling multiple separate components or making precise welds
3Ease of manufacture
If weld-on blocks are used for mounting teeth, then the mounting system is easier to manufacture, but gaps between teeth cause material wedging and trench widening
Solution Approach 1:
The monolithic substrate integrates mounting and tooth positioning functions into a single manufacturable component. Hardened steel alloy material allows the substrate to be formed with precise tooth pockets and mounted to the cutting wheel as one piece, eliminating weld-related spacing issues while maintaining ease of manufacture through integral forming
Solution Approach 2:
The use of hardened steel alloy provides both the structural integrity needed for close tooth spacing and the manufacturability of a monolithic structure. The material properties enable precise tooth pocket formation while maintaining ease of attachment to the cutting wheel, combining manufacturing simplicity with spacing precision
Data Source
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AI summary
A cutting tooth system includes a plurality of substrates, each having a base for attaching to the cutting wheel, and an outer surface opposite the base. A plurality of tooth pockets are integrally formed in the substrate, each tooth pocket having a tooth receiving aperture extending through the outer surface and into the substrate. A cutting tooth has a pocket engagement portion configured for being received in a mounting pocket. The pocket engagement portion defines a pocket engagement length and a shank defining a shank diameter. A cutter portion extends from the pocket engagement portion.